forgot to remove friend operator<<

Remove aps_build script, no longer used.
Tests have all been converted to the EPICS harness,
so don't need running separately.

.hgflow

@@ -0,0 +1,8 @@
+[branchname]
+master = master
+develop = default
+feature = feature/
+release = release/
+hotfix = hotfix/
+support = support/
+

.hgignore

@@ -1,9 +1,12 @@
-QtC-pvData.creator.user
-bin
-lib
-doc
-include
+QtC-
+bin/
+lib/
+doc/
+include/
+db/
+dbd/
 documentation/html
-./O.*
-configure/RELEASE.local
-configure/CONFIG_SITE.local
+documentation/*.tag
+envPaths
+configure/.*\.local
+/O\..*

.hgtags

@@ -4,3 +4,9 @@ d29d84f4c3f389f2accd497185b106c8541f95c9 1.1-SNAPSHOT
 a29729ca0ecd60b66f2d997031d97911377e44a7 marchtest
 9c59737f56e71aef641b70d0f72aa768fd7f8414 1.0.1-BETA
 4559c3de0cb4e3420e26272817f58bab005063ec 1.1-BETA
+d70c5ad29163306f50979a95b5aebbe9a93cfe76 2.0-BETA
+4cecd4b200f88ab57bbb81978c45df2a67bbece1 3.0-pre1
+4cecd4b200f88ab57bbb81978c45df2a67bbece1 3.0.0
+2a289ff41e2ed3a0247877306c2db7b266f3b6b8 3.0.1
+58092712d092ee521d1e1c8fa596a67f7d113ee9 3.0.2
+40b681ffc5cd609320e3f8ffc8eb6aa3bfdfbf19 before_merge_changesAfter3_0_2

Makefile

@@ -1,12 +1,14 @@
-#Makefile at top of application tree
+# Makefile for the EPICS V4 pvData module
+
 TOP = .
 include $(TOP)/configure/CONFIG
+
 DIRS += configure
-DIRS += pvDataApp
-pvDataApp_DEPEND_DIRS = configure
+
+DIRS += src
+src_DEPEND_DIRS = configure
+
 DIRS += testApp
-testApp_DEPEND_DIRS = pvDataApp
+testApp_DEPEND_DIRS = src
 
 include $(TOP)/configure/RULES_TOP
-
-

configure/CONFIG

@@ -1,30 +1,29 @@
-# CONFIG
+# CONFIG - Load build configuration data
+#
+# Do not make changes to this file!
 
-# You might want to change this to some shared set of rules, e.g.
-# RULES=/path/to/epics/support/modules/rules/x-y
-RULES=$(EPICS_BASE)
+# Allow user to override where the build rules come from
+RULES = $(EPICS_BASE)
 
+# RELEASE files point to other application tops
 include $(TOP)/configure/RELEASE
--include $(TOP)/configure/RELEASE.$(EPICS_HOST_ARCH)
 -include $(TOP)/configure/RELEASE.$(EPICS_HOST_ARCH).Common
 ifdef T_A
 -include $(TOP)/configure/RELEASE.Common.$(T_A)
 -include $(TOP)/configure/RELEASE.$(EPICS_HOST_ARCH).$(T_A)
 endif
 
-CONFIG=$(RULES)/configure
+CONFIG = $(RULES)/configure
 include $(CONFIG)/CONFIG
 
-# Override for definition in base
+# Override the Base definition:
 INSTALL_LOCATION = $(TOP)
-include $(TOP)/configure/CONFIG_SITE
--include $(TOP)/configure/CONFIG_SITE.$(EPICS_HOST_ARCH)
--include $(TOP)/configure/CONFIG_SITE.$(EPICS_HOST_ARCH).Common
 
+# CONFIG_SITE files contain other build configuration settings
+include $(TOP)/configure/CONFIG_SITE
+-include $(TOP)/configure/CONFIG_SITE.$(EPICS_HOST_ARCH).Common
 ifdef T_A
  -include $(TOP)/configure/CONFIG_SITE.Common.$(T_A)
  -include $(TOP)/configure/CONFIG_SITE.$(EPICS_HOST_ARCH).$(T_A)
-
- -include $(TOP)/configure/O.$(T_A)/CONFIG_APP_INCLUDE
 endif
 

configure/CONFIG_SITE

@@ -1,36 +1,30 @@
 # CONFIG_SITE
 
 # Make any application-specific changes to the EPICS build
-# configuration variables in this file.
+#   configuration variables in this file.
 #
 # Host/target specific settings can be specified in files named
-#  CONFIG_SITE.$(EPICS_HOST_ARCH).Common
-#  CONFIG_SITE.Common.$(T_A)
-#  CONFIG_SITE.$(EPICS_HOST_ARCH).$(T_A)
+#   CONFIG_SITE.$(EPICS_HOST_ARCH).Common
+#   CONFIG_SITE.Common.$(T_A)
+#   CONFIG_SITE.$(EPICS_HOST_ARCH).$(T_A)
 
-# Set this when you only want to compile this application
-# for a subset of the cross-compiled target architectures
-# that Base is built for.
-#CROSS_COMPILER_TARGET_ARCHS = vxWorks-68040
+# CHECK_RELEASE controls the consistency checking of the support
+#   applications pointed to by the RELEASE* files.
+# Normally CHECK_RELEASE should be set to YES.
+# Set CHECK_RELEASE to NO to disable checking completely.
+# Set CHECK_RELEASE to WARN to perform consistency checking but
+#   continue building anyway if conflicts are found.
+CHECK_RELEASE = YES
 
-# Set this when your IOC and the host use different paths
-# to access the application. This will be needed to boot
-# from a Microsoft FTP server or with some NFS mounts.
-# You must rebuild in the iocBoot directory for this to
-# take effect.
-#IOCS_APPL_TOP = <path to application top as seen by IOC>
+# To install files into a location other than $(TOP) define
+#   INSTALL_LOCATION here.
+#INSTALL_LOCATION=</path/name/to/install/top>
 
-# If you don't want to install into $(TOP) then
-# define INSTALL_LOCATION here
-#INSTALL_LOCATION=<fullpathname>
+-include $(TOP)/configure/CONFIG_SITE.local
+-include $(TOP)/../CONFIG.local
 
-ifeq ($(EPICS_TEST_COVERAGE),1)
+ifdef WITH_COVERAGE
 USR_CPPFLAGS += --coverage
 USR_LDFLAGS += --coverage
 endif
 
-INSTALL_INCLUDE = $(INSTALL_LOCATION)/include/pv
-USR_INCLUDES += -I $(INSTALL_LOCATION)/include
-
--include $(TOP)/configure/CONFIG_SITE.local
--include $(TOP)/../CONFIG.local

configure/Makefile

@@ -2,14 +2,6 @@ TOP=..
 
 include $(TOP)/configure/CONFIG
 
-# CHECK_RELEASE controls the consistency checking of the support
-# applications defined in the $(TOP)/configure/RELEASE* files.
-# Normally CHECK_RELEASE should be set to YES.
-# Set CHECK_RELEASE to NO to disable checking completely.
-# Set CHECK_RELEASE to WARN to perform consistency checking,
-# but continue the build even if conflicts are found.
-CHECK_RELEASE = YES
-
 TARGETS = $(CONFIG_TARGETS)
 CONFIGS += $(subst ../,,$(wildcard $(CONFIG_INSTALLS)))
 

configure/RELEASE

@@ -1,27 +1,25 @@
-#RELEASE Location of external products
+# pvDataCPP RELEASE - Location of external support modules
 #
-# IF YOU MAKE ANY CHANGES to this file you MUST at least run
-# "gnumake" in this directory afterwards; you usually need
-# to run "gnumake rebuild" in the application's top level
-# directory each time this file is changed.
+# IF YOU CHANGE this file or any file it includes you must
+# subsequently do a "gnumake rebuild" in the application's
+# top level directory.
 #
-# NOTE: The build does not check dependencies against files
-# that are outside this application, thus you should run
-# "gnumake distclean install" in the top directory each time
-# EPICS_BASE, SNCSEQ, or any other external module defined
-# in the RELEASE file is rebuilt.
+# The build process does not check dependencies against files
+# that are outside this application, thus you should also do a
+# "gnumake rebuild" in the top level directory after EPICS_BASE
+# or any other external module pointed to below is rebuilt.
 #
-# Host/target specific settings can be specified in files named
+# Host- or target-specific settings can be given in files named
 #  RELEASE.$(EPICS_HOST_ARCH).Common
 #  RELEASE.Common.$(T_A)
 #  RELEASE.$(EPICS_HOST_ARCH).$(T_A)
 
-TEMPLATE_TOP=$(EPICS_BASE)/templates/makeBaseApp/top
-EPICS_BASE=/home/install/epics/base
-
-# Create a file RELEASE.local containing the
-# location of your EPICS_BASE, e.g.
-# EPICS_BASE=/home/install/epics/base
+# EPICS V4 Developers: Do not edit the locations in this file!
+#
+# Create a file RELEASE.local pointing to your PVCOMMON
+# and EPICS_BASE build directories, e.g.
+#   PVCOMMON = /home/install/epicsV4/pvCommonCPP
+#   EPICS_BASE = /home/install/epics/base
 
 -include $(TOP)/configure/RELEASE.local
 -include $(TOP)/../RELEASE.local

documentation/RELEASE_NOTES.md

@@ -0,0 +1,47 @@
+Release release/3.1 IN DEVELOPMENT
+===========
+
+The main changes since release 3.0.2 are:
+
+* array semantics now enforce Copy On Write.
+* union is new type.
+* copy is new.
+* monitorPlugin is new.
+
+New Semantics for Arrays
+--------
+
+PVScalarArray, PVStructureArray, and PVUnionArray all enforce COW (Copy On Write) Semantics.
+In order to limit memory usage the storage for raw data is managed via a new shared_vector facility.
+This allows multiple instances of array data to use the shared raw data.
+COW is implemented via shared_vectors of const data, i. e. data that can not be modified.
+
+union is a new basic type.
+------------
+
+There are two new basic types: union_t and unionArray.
+
+A union is like a structure that has a single subfield.
+There are two flavors:
+
+* <b>varient union</b> The field can have any type.
+* <b>union</b> The field can any of specified set of types.
+
+The field type can be dynamically changed.
+
+copy 
+----
+
+This consists of createRequest and pvCopy.
+createRequest was moved from pvAccess to here.
+pvCopy is moved from pvDatabaseCPP and now depends
+only on pvData, i. e. it no longer has any knowledge of PVRecord.
+
+monitorPlugin
+-------------
+
+This is for is for use by code that implements pvAccess monitors.
+
+Release 3.0.2
+==========
+This was the starting point for RELEASE_NOTES

documentation/TODO.md

@@ -0,0 +1,54 @@
+TODO
+===========
+
+toString, dumpValue, printer, and streams
+------------
+
+The way to print introspection and data instances is not consistent.
+This needs work.
+Some items that need work are:
+
+* Introspection  has no support for streams. Only for toString.
+* data has problems. toString is implemented by calling Convert::getString.
+It look like this was intended to use printer but that did nor properly indent fields of structures.
+
+The current implementation is:
+
+     void Convert::getString(StringBuilder buf,PVField const *pvField,int /*indentLevel*/)
+     {
+         // TODO indextLevel ignored
+         std::ostringstream strm;
+         strm << pvField->dumpValue(strm) << std::endl;
+     //    PrinterPlain p;
+     //    p.setStream(strm);
+     //    p.print(*pvField);
+         strm.str().swap(*buf);
+     }
+
+Thus it just uses dumpValue.
+What should it do?
+If printer is used it must do proper indentation.
+
+doxygen
+-------
+
+There is a lot of public code that does not have doxygen tags.
+
+
+monitorPlugin
+-------------
+
+A debate is on-going about what semantics should be.
+
+PVFieldConstPtr etc
+-------------------
+
+In pvDataCPP.html look at the monoitorPlugin example.
+It has a discussion of a possible need for shared pointers that can not be used to modify data.
+This in addition to PVFieldPtr should PVFieldConstPtr exist.
+But this means that all methods defined in pvDataCPP must be checked.
+This is a BIG job.
+
+Release 3.0.2
+==========
+This was the starting point for RELEASE_NOTES

documentation/copyandmonitor.html

@@ -0,0 +1,679 @@
+<?xml version="1.0" encoding="iso-8859-1"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+      "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+  <meta http-equiv="content-type" content="text/html; charset=iso-8859-1" />
+  <title>EPICS pvDataCPP: copy and monitor</title>
+  <link rel="stylesheet" type="text/css"
+  href="http://epics-pvdata.sourceforge.net/base.css" />
+  <link rel="stylesheet" type="text/css"
+  href="http://epics-pvdata.sourceforge.net/epicsv4.css" />
+  <style type="text/css">
+  /*<![CDATA[*/
+     .about { margin-left: 3em; margin-right: 3em; font-size: .83em}
+     table { margin-left: auto; margin-right: auto }
+     .diagram { text-align: center; margin: 2.5em 0 }
+     span.opt { color: grey }
+     span.nterm { font-style:italic }
+     span.term { font-family:courier }
+     span.user { font-family:courier }
+     span.user:before { content:"<" }
+     span.user:after { content:">" }
+     .nonnorm { font-style:italic }
+     p.ed { color: #AA0000 }
+     span.ed { color: #AA0000 }
+     p.ed.priv { display: inline; }
+     span.ed.priv { display: inline; }
+  /*]]>*/</style>
+  <!-- Script that generates the Table of Contents -->
+  <script type="text/javascript"
+  src="http://epics-pvdata.sourceforge.net/script/tocgen.js">
+  </script>
+</head>
+<body>
+
+
+<div id="toc">
+<h2 class="nocount" style="page-break-before: always">Table of Contents</h2>
+</div>
+<div id="contents" class="contents">
+
+<h2>support for copy and monitor</h2>
+<p><b>copy</b> and <b>monitor</b> are not used in this project.
+They are intended for use by pvAccess and by pvAccess servers.
+They are provided with this project because the code depends only on
+pvData itself.
+</p>
+<p>This document describes C++ specific code.
+<a href="http://epics-pvdata.sourceforge.net/informative/pvRequest.html">
+pvRequest.html</a>
+provides a language independent overview of <b>copy</b> and <b>monitor</b>.
+</p>
+<p>
+<b>NOTE:pvRequest.html</b> must be updated since it is based on an earlier version of pvCopy that
+had knowlege of PVRecord. The C++ version was implemented in pvDatabaseCPP
+and the Java version on pvIOCJava.
+At present only the C++ version of the new API for pvCopy is implemented.
+</p>
+<p>Copy provides:
+<dl>
+   <dt>createRequest</dt>
+     <dd>
+      The Channel create methods in pvAccess all have an argument
+      <b>PVStructure pvRequest</b>.<br />
+      Given an ascii string createRequest creates a PVStructure that provides
+      a pvData representation of the information from the ascii string.
+      It is this structure that can be passed to the channel create methods.<br />
+      The information in a pvRequest selects an arbitrarary subset of the
+      fields in a top level structure that resides in the server.
+      In addition options can be specified. Both global and field specific
+      options can be specified.
+      </dd>
+   <dt>pvCopy</dt>
+     <dd>This is a faculity used by channel providers.
+     It provides client specific code that manages a copy of an arbitrary
+     subset of the fields in a top level structure that resides in the
+     provider. It also allows provider access to options specified
+     by the client.
+     </dd>
+</dl>
+Monitor provides:
+<dl>
+  <dt>monitor</dt>
+    <dd>This is support code for channel providers that implement channel
+    monitor. It, together with the queue facility, provides support for
+    monitor queues.
+    </dd>
+  <dt>monitorPlugin</dt>
+    <dd>This is support for implementing monitor plugins.
+     A monitor plugin can be developed that has no knowledge
+     of pvAccess but only pvData.
+    </dd>
+</dl>
+</p>
+
+<h2>support for copy</h2>
+<p><b>copy</b> provides the ability to create a structure that has 
+a copy of an arbitrary subset of the fields in an existing top level
+structure. In addition it allows global options and field specific options.
+It has two main components: <b>createRequest</b> and <b>pvCopy</b>.
+Given a string createRequest creates a pvRequest, which is a PVStructure
+that has the format expected by <b>pvCopy</b>.
+</p>
+
+<h3>createRequest</h3>
+<p>This is mainly used by pvAccess clients. Given a request string it creates
+a pvRequest structure that can be passed to the pvAccess create methods.
+In turn pvAccess passes the pvRequest to a local channel provider which 
+then passes it to pvCopy.
+</p>
+<p>The definition of the public members is:</p>
+<pre>
+class CreateRequest {
+...
+     static CreateRequestPtr create();
+     virtual PVStructurePtr createRequest(std::string const &amp;request);
+     std::string getMessage();
+};
+</pre>
+<p>An example of how it is used is:</p>
+<pre>
+CreateRequestPtr createRequest = CreateRequest::create();
+PVStructurePtr pvRequest = createRequest-&gt;createRequest(request);
+if(pvRequest==NULL) {
+    std::string error = createRequest-&gt;getMessage();
+    // take some action
+} else {
+    //success do something
+}
+</pre>
+<h3>pvCopy</h3>
+<p>The definition of the public members is:</p>
+<pre>
+class epicsShareClass PVCopyTraverseMasterCallback
+{
+...
+    virtual void nextMasterPVField(PVFieldPtr const &amp;pvField);
+};
+
+class class epicsShareClass PVCopy
+{
+...
+    static PVCopyPtr create(
+        PVStructurePtr const &amp;pvMaster,
+        PVStructurePtr const &amp;pvRequest,
+        std::string const &amp; structureName);
+    PVStructurePtr getPVMaster();
+    void traverseMaster(PVCopyTraverseMasterCallbackPtr const &amp; callback);
+    StructureConstPtr getStructure();
+    PVStructurePtr createPVStructure();
+    size_t getCopyOffset(PVFieldPtr const  &amp;masterPVField);
+    size_t getCopyOffset(
+        PVStructurePtr const  &amp;masterPVStructure,
+        PVFieldPtr const  &amp;masterPVField);
+     PVFieldPtr getMasterPVField(std::size_t structureOffset);
+     void initCopy(
+        PVStructurePtr const  &amp;copyPVStructure,
+        BitSetPtr const  &amp;bitSet);
+     void updateCopySetBitSet(
+        PVStructurePtr const  &amp;copyPVStructure,
+        BitSetPtr const  &amp;bitSet);
+    void updateCopyFromBitSet(
+        PVStructurePtr const  &amp;copyPVStructure,
+        BitSetPtr const  &amp;bitSet);
+    void updateMaster(
+        PVStructurePtr const  &amp;copyPVStructure,
+        BitSetPtr const  &amp;bitSet);
+    PVStructurePtr getOptions(std::size_t fieldOffset);
+...
+};
+</pre>
+where
+<dl>
+   <dt>PVCopyTraverseMasterCallback::nextMasterPVField</dt>
+     <dd>
+       <b>PVCopyTraverseMasterCallback</b> is a callback which must
+       be implemented by the code that uses pvCopy, normally
+       the channel provider. It has the single method <b>nextMasterPVField</b>
+       <br />
+       <b>nextMasterPVField</b> is called for each field in the master
+       as a result of a call to <b>traverseMaster</b>.
+     </dd>
+   <dt>create</dt>
+      <dd>
+        This is the method for creating a PVCopy instance.<br/>
+        <dl>
+           <dt>pvMaster</dt>
+             <dd>the top level sructure managed by the server.</dd>
+          <dt>pvRequest</dt>
+           <dd>selects the set of subfields desired
+         and options for each field.</dd>
+          <dt>structureName</dt>
+            <dd>the name for the top level of any PVStructure created.
+            </dd>
+        </dl>
+      </dd>
+   <dt>getPVMaster</dt>
+      <dd>
+       Gets the top level structure from pvMaster.
+      </dd>
+   <dt>traverseMaster</dt>
+      <dd>
+      Traverse all fields of the top level structure of pvMaster.
+      For each field the callback is called.
+      </dd>
+   <dt>getStructure</dt>
+      <dd>
+       Get the introspection interface for a PVStructure for e copy.
+      </dd>
+   <dt>createPVStructure</dt>
+      <dd>Create a copy instance.
+       Monitors keep a queue of monitor elements.
+     Since each element needs a PVStructure, multiple top level structures
+     will be created.
+      </dd>
+   <dt>getCopyOffset</dt>
+      <dd>Given a field in pvMaster.
+       return the offset in copy for the same field.
+      A value of std::string::npos means that the copy does not have this field.
+      Two overloaded methods are provided. The first is called if
+      the field of master is not a structure. The second is for
+      subfields of a structure.
+      </dd>
+   <dt>getMasterPVField</dt>
+      <dd>
+       Given a offset in the copy get the corresponding field in pvMaster.
+      </dd>
+   <dt>initCopy</dt>
+      <dd>
+       Initialize the fields in copyPVStructure
+       by giving each field the  value from the corresponding field in pvMaster.
+       bitSet will be set to show that all fields are changed.
+       This means that bit set will have the value <b>{0}</b>.
+      </dd>
+   <dt>updateCopySetBitSet</dt>
+      <dd>
+      Set all fields in copyPVStructure to the value of the corresponding field
+      in pvMaster. Each field that is changed has it's corresponding
+      bit set in bitSet.
+      </dd>
+   <dt>updateCopyFromBitSet</dt>
+      <dd>
+       For each set bit in bitSet set the field in copyPVStructure to the value
+      of the corrseponding field in pvMaster.
+      </dd>
+   <dt>updateMaster</dt>
+      <dd>
+       For each set bit in bitSet set the field in pvMaster to the value
+      of the corrseponding field in copyPVStructure.
+      
+      </dd>
+   <dt>getOptions</dt>
+      <dd>
+       Get the options for the field at the specified offset.
+      A NULL is returned if no options were specified for the field.
+      If options were specified,PVStructurePtr is 
+      a structure with a set of PVString subfields that specify name,value
+      pairs. name is the subField name and value is the subField value.
+      </dd>
+</dl>
+
+
+
+
+<h2>support for monitor</h2>
+<p>This consists of two components:
+<dl>
+   <dt>monitor</dt>
+     <dd>Used by code that implements pvAccess montors.</dd>
+   <dt>monitorPlugin</dt>
+      <dd>Code that provides special semantics for monitors.</dd>
+</dl>
+</p>
+<h3>monitor</h3>
+<pre>
+class MonitorElement {
+    MonitorElement(PVStructurePtr const &amp; pvStructurePtr);
+    PVStructurePtr pvStructurePtr;
+    BitSetPtr changedBitSet;
+    BitSetPtr overrunBitSet;
+};
+
+class Monitor {
+    virtual Status start() = 0;
+    virtual Status stop() = 0;
+    virtual MonitorElementPtr poll() = 0;
+    virtual void release(MonitorElementPtr const &amp; monitorElement) = 0;
+};
+
+class MonitorRequester : public virtual Requester {
+    virtual void monitorConnect(Status const &amp; status,
+        MonitorPtr const &amp; monitor, StructureConstPtr const &amp; structure) = 0;
+    virtual void monitorEvent(MonitorPtr const &amp; monitor) = 0;
+    virtual void unlisten(MonitorPtr const &amp; monitor) = 0;
+};
+</pre>
+<h4>monitorElement</h4>
+<p><b>MonitorElement</b> holds the data for one element of a monitor queue.
+It has the fields:
+<dl>
+  <dt>pvStructurePtr</dt>
+    <dd>A top level structure with data values at the time the monitors occurs.</dd>
+  <dt>changedBitSet</dt>
+     <dd>Shows which fields have changed since the previous monitor.</dd>
+  <dt>overrunBitSet</dt>
+     <dd>Shows which fields have changed more han once since the previous monitor.</dd>
+</dl>
+</p>
+<h4>monitorElement queue</h4>
+<p>
+A queue of monitor elements must be implemented by any channel provider that implements
+<b>Channel::createMonitor</b>.
+For an example implementation look at pvDatabaseCPP.
+It has the following:
+<pre>
+typedef Queue&lt;MonitorElement&gt; MonitorElementQueue;
+typedef std::tr1::shared_ptr&lt;MonitorElementQueue&gt; MonitorElementQueuePtr;
+
+class MultipleElementQueue :
+    public ElementQueue
+{
+public:
+    POINTER_DEFINITIONS(MultipleElementQueue);
+    virtual ~MultipleElementQueue(){}
+    MultipleElementQueue(
+        MonitorLocalPtr const &amp;monitorLocal,
+        MonitorElementQueuePtr const &amp;queue,
+        size_t nfields);
+    virtual void destroy(){}
+    virtual Status start();
+    virtual Status stop();
+    virtual bool dataChanged();
+    virtual MonitorElementPtr poll();
+    virtual void release(MonitorElementPtr const &amp;monitorElement);
+...
+};
+</pre>
+<h4>Monitor</h4>
+<p><b>Monitor</b> must be implemented by any channel provider that implements
+<b>Channel::createMonitor</b>.
+Remote PVAccess also implements Monitor on the client side.
+Note that each client has it's own queue that is not shared with other client.
+</p>
+<p>Monitor has the following methods:</p>
+<dl>
+   <dt>start</dt>
+     <dd>
+      Start monitoring.
+      This will result in a an inital monitor that has the current value
+      of all fields.
+     </dd>
+   <dt>stop</dt>
+     <dd>
+      Stop monitoring.
+     </dd>
+   <dt>poll</dt>
+     <dd>
+      Called to get a monitor element.
+      If no new elemants are available then a null pointer is returned.
+     </dd>
+   <dt>release</dt>
+     <dd>
+      Release the monotor element.
+      The caller owns the monitor element between the calls to poll and release.
+     </dd>
+<dl>
+</dl>
+<h4>MonitorRequester</h4>
+<p>This must be implemented by a pvAccess client.
+It has the methods:</p>
+<dl>
+  <dt>monitorConnect</dt>
+     <dd>
+      A monitor has either connected of disconnected.
+     </dd>
+  <dt>monitorEvent</dt>
+     <dd>
+      A new monitor element is available.
+     </dd>
+  <dt>unlisten</dt>
+     <dd>
+      The channel is going away. The client cam no longer access the monitor.
+     </dd>
+</dl>
+
+<h3>monitorPlugin</h3>
+<pre>
+class MonitorPlugin
+{
+    virtual std::string const &amp; getName() = 0;
+    virtual bool causeMonitor(
+        PVFieldPtr const &amp;pvField,
+        PVStructurePtr const &amp;pvTop,
+        MonitorElementPtr const &amp;monitorElement) = 0;
+    virtual void monitorDone(
+        MonitorElementPtr const &amp;monitorElement);
+    virtual void startMonitoring();
+    virtual void stopMonitoring();
+    virtual void beginGroupPut();
+    virtual void endGroupPut();
+};
+
+class MonitorPluginCreator
+{
+    virtual MonitorPluginPtr create(
+        FieldConstPtr const &amp;field,
+        StructureConstPtr const &amp;top,
+        PVStructurePtr const &amp;pvFieldOptions) = 0;
+     virtual std::string const &amp; getName() = 0;
+}
+
+class MonitorPluginManager
+{
+    static MonitorPluginManagerPtr get();
+    bool addPlugin(
+         std::string const &amp;pluginName,
+         MonitorPluginCreatorPtr const &amp;creator);
+    MonitorPluginCreatorPtr findPlugin(std::string const &amp;pluginName);
+    void showNames();
+};
+
+</pre>
+<h4>MonitorPlugin</h4>
+<p><b>MonitorPlugin</b> must be implemented by the plugin implementation.
+It has methods:</p>
+<dl>
+   <dt>getName</dt>
+     <dd>Get the name of the plugin.</dd>
+   <dt>causeMonitor</dt>
+     <dd>
+       Should the value of pvField cause a monitor to be raised.
+       pvField and pvTop are fields in the top level structure
+       being monitored. monitorElement has the top level structure
+       for the copy</b>.
+       The implementation should <b>not</b> modify the fields in the structure
+        being monitored.
+        Called with pvTop locked.
+     </dd>
+   <dt>monitorDone</dt>
+     <dd>
+       Called just before monitorElement will be given to client.
+       The plugin can change the data values and bitSets in monitorElement.
+        Called with pvTop unlocked.
+    </dd>
+   <dt>startMonitoring</dt>
+     <dd>
+      Monitoring is starting.
+     </dd>
+   <dt>stopMonitoring</dt>
+     <dd>
+      Monitoring is being stopped.
+     </dd>
+   <dt>beginGroupPut</dt>
+     <dd>
+      A set of puts is starting.
+        Called with pvTop locked.
+     </dd>
+   <dt>endGroupPut</dt>
+     <dd>
+      The set of puts is complete.
+        Called with pvTop locked.
+     </dd>
+</dl>
+<h4>MonitorPluginCreator</h4>
+<p><b>MonitorPluginCreator</b> must also be implemented by the plugin implementation.
+It is called for each field instance that has options of the from
+<b>[plugin=name...]</b> where <b>name</b> is the name of the plugin.
+Note that a plugin instance will belong to a single client.
+It has methods:</p>
+<dl>
+   <dt>getName</dt>
+     <dd>Get the name of the plugin.</dd>
+   <dt>create</dt>
+     <dd>
+     Create a new plugin instance.
+     If the arguments are not compatible with the plugin a NULL shared pointer is
+     returned.<br/>
+    pvFieldOptions is
+      a structure with a set of PVString subfields that specify <b>name,value</b>
+      pairs. name is the subField name and value is the subField value.<br/>
+     Note that a plugin will below to a single client.
+    </dd>
+<dl>
+<h4>MonitorPluginManager</h4>
+<p><b>MonitorPluginManager</b> has the methods:</p>
+<dl>
+   <dt>get</dt>
+     <dd>
+     MonitorPluginManager is a singleton.
+     The first call to get will create the single instance.
+     Further calls will rerurn the single instance.
+     </dd>
+   <dt>addPlugin</dt>
+     <dd>
+     Add a new plugin.
+     </dd>
+   <dt>findPlugin</dt>
+     <dd>
+      Find a plugin. A NULL shared pointer is reurned if it has not been added.
+     </dd>
+   <dt>showNames</dt>
+     <dd>
+      Show the names of all puugins that have been added.
+     </dd>
+</dl>
+<p><b>NOTE:</b>
+Should the method <b>causeMonitor</b> 
+have arguments <b>pvField</b> and <b>pvTop</b>
+be defined so that they can not be modfied.
+This would be posssible if the following was defined:
+<pre>
+typedef std::tr1::shared_ptr&lt;const PVField&gt; PVFieldConstPtr;
+typedef std::tr1::shared_ptr&lt;const PVStructure&gt; PVStructureConstPtr;
+</pre>
+then the definition for causeMonitor could be:
+<pre>
+virtual bool causeMonitor(
+        PVFieldConstPtr const &amp;pvField,
+        PVStructureConstPtr const &amp;pvTop,
+        MonitorElementPtr const &amp;monitorElement) = 0;
+</pre>
+But just adding these definitions is not sufficent.
+In addition all methods defined in pvDataCPP must be checked.
+In particular many of the methods in <b>Convert</b> must have
+their arguments modified.
+Big job.
+</p>
+<h2>monitorPlugin example</h2>
+<h3>Example Plugin Overview</h3>
+<p>This section describes an example plugin that:</p>
+<ul>
+   <li>Only raises monitors when a field changes value.<br />
+     If no plugin is provided
+     the default is to raise a monitor when a put is issued to a field.</li>
+   <li>Optionally a change will not raise a monitor.<br />
+     The change will, however,
+     appear if a put to another field raise a monitor.</li>
+</ul>
+<p>As an example assume that a channel provided by pvAccess has a top level structure
+that represents a power supply.</p>
+<pre>
+structure powerSupply
+    structure alarm
+    structure timeStamp
+    structure power
+       double value
+       structure alarm
+       struvture display
+    structure voltage
+       double value
+       structure alarm
+       struvture display
+    structure current
+       double value
+       structure alarm
+       struvture display
+</pre>
+<p>A pvAccess client wants to create a monitor on the powerSupply as follows:
+The client wants a top level structure that looks like:
+<pre>
+structure powerSupply
+    structure alarm
+    structure timeStamp
+    structure power
+       double value
+    structure voltage
+       double value
+    structure current
+       double value
+</pre>
+In addition the client wants monitors to occur only when one of the monitored
+fields changes value but not just because a put occured.
+Also if only the timeStamp changes value then that should not cause a monitor.
+</p>
+<p>The example monitor plugin implements the semantics the
+client wants. It can be attached to any field via the following options:
+<pre>
+[plugin=onChange,raiseMonitor=value]
+</pre>
+This plugin will trigger a monitor for the field only if the field changes
+value. In addition <b>value</b> equals <b>false</b> means do not raise a monotor
+for changes to this field.
+But if a change to another field does cause a monitor the change to this field
+will be passed to the client.
+</p>
+<p>
+Assume that the client has already connected to the channel.
+The client can then issue the commands:</p>
+<pre>
+std::string request("field(alarm[plugin=onChange]");
+request += ",timeStamp[plugin=onChange,raiseMonitor=false]";
+request += ",power.value[plugin=onChange";
+request += ",voltage.value[plugin=onChange";
+request += ",current.value[plugin=onChange";
+
+PVStructurePtr pvRequest = createRequest-&gt;createRequest(request);
+
+MonitorPtr monitor = channel-&gt;createMonitor(monitorRequester,pvRequest);
+</pre>
+<h3>Example Plugin Code</h3>
+<p>The header file to create the example has the definition:</p>
+<pre>
+class ExampleMonitorPlugin{
+public:
+    static void create();
+};
+</pre>
+<p>The implementation is:</p>
+<pre>
+class OnChangePlugin : public MonitorPlugin
+{
+public:
+    virtual ~OnChangePlugin(){}
+    OnChangePlugin() {}
+    bool init(
+        FieldConstPtr const &amp;field,
+        StructureConstPtr const &amp;top,
+        PVStructurePtr const &amp;pvFieldOptions)
+   {
+        pvField = getPVDataCreate()-&gt;createPVField(field);
+        raiseMonitor = true;
+        if(pvFieldOptions!=NULL) {
+            PVStringPtr pvString =
+                pvFieldOptions-&gt;getSubField&lt;PVString&gt;("raiseMonitor");
+                if(pvString!=NULL) {
+                    std::string value = pvString-&gt;get();
+                    if(value.compare("false")==0) raiseMonitor = false;
+                }
+        }
+        return true;
+   }
+   virtual std::string &amp;getName(){return pluginName;}
+   virtual bool causeMonitor(
+        PVFieldPtr const &amp;pvNew,
+        PVStructurePtr const &amp;pvTop,
+        MonitorElementPtr const &amp;monitorElement)
+   {
+       bool isSame = convert-&gt;equals(pvNew,pvField);
+       if(isSame) return false;
+       convert-&gt;copy(pvNew,pvField);
+       return raiseMonitor;
+   }
+private:
+   PVFieldPtr pvField;
+   bool raiseMonitor;
+};
+class OnChangePluginCreator : public MonitorPluginCreator
+{
+public:
+    virtual std::string &amp;getName(){return pluginName;}
+    virtual MonitorPluginPtr create(
+        FieldConstPtr const &amp;field,
+        StructureConstPtr const &amp;top,
+        PVStructurePtr const &amp;pvFieldOptions)
+   {
+       OnChangePluginPtr plugin(new OnChangePlugin());
+       bool result = plugin-&gt;init(field,top,pvFieldOptions);
+       if(!result) return MonitorPluginPtr();
+       return plugin;
+   }
+
+};
+
+void ExampleMonitorPlugin::create()
+{
+    static OnChangePluginCreatorPtr plugin;
+    static Mutex mutex;
+    Lock xx(mutex);
+    if(plugin==NULL) {
+        plugin = OnChangePluginCreatorPtr(new OnChangePluginCreator());
+        MonitorPluginManager::get()-&gt;addPlugin(pluginName,plugin);
+    }
+}
+</pre>
+
+
+</div>
+</body>
+</html>

documentation/pvDataCPPCookbook.txt

@@ -0,0 +1,179 @@
+pvDataCPP cookbook
+------------------
+
+
+Creating introspection data interfaces
+
+// create a scalar
+getFieldCreate()->createScalar(pvDouble);
+
+// create a scalar array
+getFieldCreate()->createScalarArray(pvDouble);
+
+// create a structure
+getFieldCreate()->createFieldBuilder()->
+    setId("enum_t")->
+    add("index", pvDouble)->
+    addArray("choices", pvString)->
+    createStructure();
+
+// create a structure (cntd.)
+StructureConstPtr enum_t = 
+    getFieldCreate()->createFieldBuilder()->
+        setId("enum_t")->
+        add("index", pvInt)->
+        addArray("choices", pvString)->
+        createStructure();
+
+// create a structure (cntd.)
+StructureConstPtr ntEnum = 
+    getFieldCreate()->createFieldBuilder()->
+        setId("uri:ev4:nt/2012/pwd/NTEnum")->
+        add("value", enum_t)->
+        addNestedStructure("timeStamp")->
+            setId("time_t")->
+            add("secsPastEpoch", pvLong)->
+            add("nanoseconds", pvInt)->
+            add("userTag", pvInt)->
+            endNested()->
+        createStructure();
+
+// create an union == same as structure
+
+---
+
+Creating data containers
+
+// create a scalar
+PVDouble::shared_pointer doubleValue = getPVDataCreate()->createPVScalar<PVDouble>();
+
+// create a scalar array
+PVDoubleArray::shared_pointer doubleArrayValue = getPVDataCreate()->createPVScalarArray<PVDouble>();
+
+// create a structure 
+PVStructure::shared_pointer struct = getPVDataCreate()->createPVStructure(ntEnum);
+
+// create an union
+PVUnion::shared_pointer pvUnion = getPVDataCreate()->createPVUnion(unionIF);
+
+// create a structure array
+PVStructureArray::shared_pointer structArray = getPVDataCreate()->createPVStructureArray(ntEnum);
+
+
+// scalar usage
+PVInt::shared_pointer index = struct->getSubField<PVInt>("value.index");
+int32 ix = index->get();
+index->put(3);
+std::cout << *index << std::endl;
+
+
+// using <<=, >>= operators to get/set
+*doubleValue <<= 12.3;
+
+double val;
+*doubleValue >>= val;
+
+
+
+// array usage
+PVStringArray::shared_pointer choices = struct->getSubField<PVStringArray>("value.choices");
+
+// use view() to access read-only data
+PVStringArray::const_svector data(choices->view());
+for (std::size_t i = 0; i < data.size(); i++)
+    std::cout << data[i] << std::endl;
+    
+// use replace() to put new data
+PVStringArray::svector newdata;
+newdata.push_back("zero");
+newdata.push_back("one");
+newdata.push_back("two");
+choices->replace(freeze(newdata));
+
+// (add more use-cases) here
+
+// print entire array
+std::cout << *choices << std::endl;
+
+// print elmenet at index == 1
+std::cout << format::array_at(1) << *choices << std::endl;
+
+----
+
+Union handling
+
+
+Union::const_shared_pointer punion =
+    getFieldCreate()->createFieldBuilder()->
+        add("doubleValue", pvDouble)->
+        add("intValue", pvInt)->
+        createUnion();
+                            
+PVUnion::shared_pointer u = getPVDataCreate()->createPVUnion(punion);
+
+// select and put
+// this create a new instance of PVDouble (everytime select() is called)
+PVDouble::shared_pointer doubleValue = u->select<PVDouble>("doubleValue");
+doubeValue->put(12);
+// select using index (and direct put)
+u->select<PVDouble>(0)->put(12);
+// select using existing PVField (PVUnion stores by-reference)
+u->set("doubleValue", doubleValue);
+
+// get selected field name or index
+std::string selectedFN = u->getSelectedFieldName();
+int32 selectedIndex = u->getSelectedIndex();
+
+// get currently selected (knowing it's PVDouble)
+PVDouble value = u->get<PVDouble>();
+
+
+
+Variant Union handling
+
+
+PVUnion::shared_pointer any = getPVDataCreate()->createPVVariantUnion();
+
+PVDouble::shared_pointer doubleValue = getPVDataCreate()->createPVScalar<PVDouble>();
+doubleValue->put(12.8);
+any->set(doubleValue);
+
+PVDouble::shared_pointer doubleValue2 = any->get<PVDouble>();
+
+// variant union work by-reference (pointers match also)
+// doubleValue.get() == doubleValue2.get()
+
+
+
+------
+
+Convert
+
+
+// convert to int
+int32 i = doubleValue->getAs<int32>();
+
+// from int
+doubleValue->putFrom<int32>(i);
+
+// from string
+doubleValue->putFrom<std::string>("12.3");
+
+// from scalar field
+doubleValue->assign(pvScalar);
+
+
+
+// convert to int array
+PVIntArray::const_svector intData;
+doubleArrayValue->getAs<int32>(intData);
+
+// from string array
+PVStringArray::svector labels;
+labels.push_back("zero");
+labels.push_back("one");
+labels.push_back("two");
+doubleArrayValue->putFrom<std::string>(labels);
+
+// from scalar array 
+doubleArrayValue->assign(pvScalarArray);

documentation/pvDataCPP_20120927.html

@@ -42,11 +42,11 @@
   <dl>
     <dt>Latest version:</dt>
     <dd><a
-      href="http://epics-pvdata.hg.sourceforge.net/hgweb/epics-pvdata/pvDataCPP/raw-file/tip/documentation/pvDataCPP.html">pvDataCPP.html</a>
+      href="pvDataCPP.html">pvDataCPP.html</a>
     </dd>
     <dt>This version:</dt>
     <dd><a
-      href="http://epics-pvdata.hg.sourceforge.net/hgweb/epics-pvdata/pvDataCPP/raw-file/tip/documentation/pvDataCPP_20120927.html">pvDataCPP_20120927.html</a>
+      href="pvDataCPP_20120927.html">pvDataCPP_20120927.html</a>
     </dd>
     <dt>Previous version:</dt>
     <dd>None.</dd>
@@ -65,33 +65,9 @@ license.</a></p>
 <p>pvDataCPP is a computer software package for the efficient
 storage, access, and communication, of structured data. It is specifically the
 C++ implementation of pvData, which is one part of the set of related products in the EPICS
-V4 control system programming environment:</p>
-<dl>
-  <dt><a
-  href="http://epics-pvdata.hg.sourceforge.net/hgweb/epics-pvdata/pvDataCPP/raw-file/tip/documentation/pvDataCPP.html">pvData</a></dt>
-    <dd>pvData (Process Variable Data) defines and implements an efficent way
-      to store, access, and communicate memory resident structured data</dd>
-  <dt><a
-  href="http://epics-pvdata.hg.sourceforge.net/hgweb/epics-pvdata/pvAccessCPP/raw-file/tip/documentation/pvAccessCPP.html">pvAccess</a></dt>
-    <dd>pvAccess is a software library for high speed controls network communications,
-      optimized for pvData</dd>
-  <dt><a
-  href="http://epics-pvdata.hg.sourceforge.net/hgweb/epics-pvdata/pvIOCCPP/raw-file/tip/documentation/pvIOCCPP.html">pvIOC</a></dt>
-    <dd>pvIOC is a software framework for building network accessable "smart" real time
-      databases, suitable for interfacing devices in a distributed control system,
-      that can exchange pvData over pvAccess.
-    </dd>
-  <dt><a
-  href="http://epics-pvdata.hg.sourceforge.net/hgweb/epics-pvdata/pvServiceCPP/raw-file/tip/documentation/pvAccessCPP.html">pvService</a></dt>
-    <dd>A middle layer for implementing efficient data services.</dd>
-</dl>
-
-<p>Each of these products has a Java and a C++ implementation.</p>
-
-<p>The products are all part of the <a
-href="http://epics-pvdata.sourceforge.net/">V4</a> implementation of <a
-href="http://www.aps.anl.gov/epics/">Experimental Physics and Industrial
-Control System (EPICS).</a></p>
+V4 control system programming environment:<br />
+<a href="http://epics-pvdata.sourceforge.net/relatedDocumentsV4.html">relatedDocumentsV4.html</a>
+</p>
 
 <h2 class="nocount">Status of this Document</h2>
 

documentation/pvDataCPP_20121001.html

@@ -42,15 +42,15 @@
   <dl>
     <dt>Latest version:</dt>
     <dd><a
-      href="http://epics-pvdata.hg.sourceforge.net/hgweb/epics-pvdata/pvDataCPP/raw-file/tip/documentation/pvDataCPP.html">pvDataCPP.html</a>
+      href="pvDataCPP.html">pvDataCPP.html</a>
     </dd>
     <dt>This version:</dt>
     <dd><a
-      href="http://epics-pvdata.hg.sourceforge.net/hgweb/epics-pvdata/pvDataCPP/raw-file/tip/documentation/pvDataCPP_20121001.html">pvDataCPP_20121001.html</a>
+      href="pvDataCPP_20121001.html">pvDataCPP_20121001.html</a>
     </dd>
     <dt>Previous version:</dt>
     <dd><a
-      href="http://epics-pvdata.hg.sourceforge.net/hgweb/epics-pvdata/pvDataCPP/raw-file/tip/documentation/pvDataCPP_20120927.html">pvDataCPP_20120927.html</a>
+      href="pvDataCPP_20120927.html">pvDataCPP_20120927.html</a>
     </dd>
     <dt>Editors:</dt>
     <dd>Marty Kraimer, BNL</dd>
@@ -67,33 +67,9 @@ license.</a></p>
 <p>pvDataCPP is a computer software package for the efficient
 storage, access, and communication, of structured data. It is specifically the
 C++ implementation of pvData, which is one part of the set of related products in the EPICS
-V4 control system programming environment:</p>
-<dl>
-  <dt><a
-  href="http://epics-pvdata.hg.sourceforge.net/hgweb/epics-pvdata/pvDataCPP/raw-file/tip/documentation/pvDataCPP.html">pvData</a></dt>
-    <dd>pvData (Process Variable Data) defines and implements an efficent way
-      to store, access, and communicate memory resident structured data</dd>
-  <dt><a
-  href="http://epics-pvdata.hg.sourceforge.net/hgweb/epics-pvdata/pvAccessCPP/raw-file/tip/documentation/pvAccessCPP.html">pvAccess</a></dt>
-    <dd>pvAccess is a software library for high speed controls network communications,
-      optimized for pvData</dd>
-  <dt><a
-  href="http://epics-pvdata.hg.sourceforge.net/hgweb/epics-pvdata/pvIOCCPP/raw-file/tip/documentation/pvIOCCPP.html">pvIOC</a></dt>
-    <dd>pvIOC is a software framework for building network accessable "smart" real time
-      databases, suitable for interfacing devices in a distributed control system,
-      that can exchange pvData over pvAccess.
-    </dd>
-  <dt><a
-  href="http://epics-pvdata.hg.sourceforge.net/hgweb/epics-pvdata/pvServiceCPP/raw-file/tip/documentation/pvAccessCPP.html">pvService</a></dt>
-    <dd>A middle layer for implementing efficient data services.</dd>
-</dl>
-
-<p>Each of these products has a Java and a C++ implementation.</p>
-
-<p>The products are all part of the <a
-href="http://epics-pvdata.sourceforge.net/">V4</a> implementation of <a
-href="http://www.aps.anl.gov/epics/">Experimental Physics and Industrial
-Control System (EPICS).</a></p>
+V4 control system programming environment:<br />
+<a href="http://epics-pvdata.sourceforge.net/relatedDocumentsV4.html">relatedDocumentsV4.html</a>
+</p>
 
 <h2 class="nocount">Status of this Document</h2>
 

documentation/pvDataCPP_20121026.html

@@ -42,15 +42,15 @@
   <dl>
     <dt>Latest version:</dt>
     <dd><a
-      href="http://epics-pvdata.hg.sourceforge.net/hgweb/epics-pvdata/pvDataCPP/raw-file/tip/documentation/pvDataCPP.html">pvDataCPP.html</a>
+      href="pvDataCPP.html">pvDataCPP.html</a>
     </dd>
     <dt>This version:</dt>
     <dd><a
-      href="http://epics-pvdata.hg.sourceforge.net/hgweb/epics-pvdata/pvDataCPP/raw-file/tip/documentation/pvDataCPP_20121026html">pvDataCPP_20121026html</a>
+      href="pvDataCPP_20121026html">pvDataCPP_20121026html</a>
     </dd>
     <dt>Previous version:</dt>
     <dd><a
-      href="http://epics-pvdata.hg.sourceforge.net/hgweb/epics-pvdata/pvDataCPP/raw-file/tip/documentation/pvDataCPP_20121001.html">pvDataCPP_20121001.html</a>
+      href="pvDataCPP_20121001.html">pvDataCPP_20121001.html</a>
     </dd>
     <dt>Editors:</dt>
     <dd>Marty Kraimer, BNL</dd>
@@ -67,33 +67,9 @@ license.</a></p>
 <p>pvDataCPP is a computer software package for the efficient
 storage, access, and communication, of structured data. It is specifically the
 C++ implementation of pvData, which is one part of the set of related products in the EPICS
-V4 control system programming environment:</p>
-<dl>
-  <dt><a
-  href="http://epics-pvdata.hg.sourceforge.net/hgweb/epics-pvdata/pvDataCPP/raw-file/tip/documentation/pvDataCPP.html">pvData</a></dt>
-    <dd>pvData (Process Variable Data) defines and implements an efficent way
-      to store, access, and communicate memory resident structured data</dd>
-  <dt><a
-  href="http://epics-pvdata.hg.sourceforge.net/hgweb/epics-pvdata/pvAccessCPP/raw-file/tip/documentation/pvAccessCPP.html">pvAccess</a></dt>
-    <dd>pvAccess is a software library for high speed controls network communications,
-      optimized for pvData</dd>
-  <dt><a
-  href="http://epics-pvdata.hg.sourceforge.net/hgweb/epics-pvdata/pvIOCCPP/raw-file/tip/documentation/pvIOCCPP.html">pvIOC</a></dt>
-    <dd>pvIOC is a software framework for building network accessable "smart" real time
-      databases, suitable for interfacing devices in a distributed control system,
-      that can exchange pvData over pvAccess.
-    </dd>
-  <dt><a
-  href="http://epics-pvdata.hg.sourceforge.net/hgweb/epics-pvdata/pvServiceCPP/raw-file/tip/documentation/pvAccessCPP.html">pvService</a></dt>
-    <dd>A middle layer for implementing efficient data services.</dd>
-</dl>
-
-<p>Each of these products has a Java and a C++ implementation.</p>
-
-<p>The products are all part of the <a
-href="http://epics-pvdata.sourceforge.net/">V4</a> implementation of <a
-href="http://www.aps.anl.gov/epics/">Experimental Physics and Industrial
-Control System (EPICS).</a></p>
+V4 control system programming environment:<br />
+<a href="http://epics-pvdata.sourceforge.net/relatedDocumentsV4.html">relatedDocumentsV4.html</a>
+</p>
 
 <h2 class="nocount">Status of this Document</h2>
 

documentation/pvDataDiscussion.html

@@ -0,0 +1,792 @@
+<?xml version="1.0" encoding="iso-8859-1"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+      "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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+<head>
+  <meta http-equiv="content-type" content="text/html; charset=iso-8859-1" />
+  <title>EPICS pvDataDiscussion</title>
+  <link rel="stylesheet" type="text/css"
+  href="http://epics-pvdata.sourceforge.net/base.css" />
+  <link rel="stylesheet" type="text/css"
+  href="http://epics-pvdata.sourceforge.net/epicsv4.css" />
+  <style type="text/css">
+  /*<![CDATA[*/
+     .about { margin-left: 3em; margin-right: 3em; font-size: .83em}
+     table { margin-left: auto; margin-right: auto }
+     .diagram { text-align: center; margin: 2.5em 0 }
+     span.opt { color: grey }
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+     span.term { font-family:courier }
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+     span.ed { color: #AA0000 }
+     p.ed.priv { display: inline; }
+     span.ed.priv { display: inline; }
+  /*]]>*/</style>
+  <!-- Script that generates the Table of Contents -->
+  <script type="text/javascript"
+  src="http://epics-pvdata.sourceforge.net/script/tocgen.js">
+  </script>
+</head>
+<body>
+
+<div class="head">
+<h1>EPICS pvDataDiscussion</h1>
+<!-- Maturity: Working Draft or Request for Comments, or Recommendation, and date.  -->
+
+<h2 class="nocount">EPICS v4 Working Group, Working Draft, 03-Jul-2013</h2>
+
+  <dl>
+    <dt>Latest version:</dt>
+    <dd><a
+      href="http://epics-pvdata.hg.sourceforge.net/hgweb/epics-pvdata/pvDataCPP/raw-file/tip/documentation/pvDataDiscussion.html">pvDataDiscussion.html</a>
+    </dd>
+    <dt>This version:</dt>
+    <dd>none</dd>
+    <dt>Previous version:</dt>
+    <dd>None</dd>
+    <dt>Editors:</dt>
+    <dd>Marty Kraimer, BNL<dd />
+  </dl>
+
+  <p class="copyright">This product is made available subject to acceptance of the <a
+href="http://epics-pvdata.sourceforge.net/LICENSE.html">EPICS open source
+license.</a></p>
+<hr />
+</div>
+
+
+<div id="toc">
+<h2 class="nocount" style="page-break-before: always">Table of Contents</h2>
+</div>
+<div id="contents" class="contents">
+
+
+<h2>Introduction</h2>
+<p>As pvDataCPP progressed PVField and derived classes accumulated
+more and more member functions.
+These member functions have nothing to do with the primary primary
+purpose for pvData:
+<blockquote>pvData (Process Variable Data) defines and implements an efficent
+way to store, access, and communicate memory resident data structures.</blockquote>
+This statement appears as the first sentence of pvDataJava.html.
+A few sentances later the document makes it clear that communication
+includes efficent network communication.
+Thus pvData provides an interface for network accessible structured data.
+The problem of adding member functions that have nothing to do with the primary purpose
+started with the Java API.
+It already had extra methods that solved problems that should have had a different solution.
+This document removes the extra methods so that when new problems arise in the future
+the solution will not involve adding new member functions to the introspection and data API.
+</p>
+<p>The introspection and data API for pvData should only encapuslate methods that support the primary purpose
+stated above.
+The interfaces for C++ and Java should be similar so that
+someone who understands the interface in one of the languages
+and knows both languages will quickly understand the interface of the other language.</p>
+<p>There is another problem with the existing API. There are methods that allow the "structure"
+to change after an pvData object is created. An example is PVField::renameField(std::string newName).
+Such methods should not exist.</p>
+<p>There are methods regarding immutability: setImmutable, isImmutablei, setCapacityMutable, and isCapacityMutable.
+Should they exists? For now lets assume no.
+</p>
+<p>One last issue is the interface for array data. This document proposes a simplified
+version of what currently exists. It requires that the implementation always provides storage for
+the complete raw array. The existing APIs allow the implementation to provide the data in
+"chunks". Giving up this requirement simplifies the array interfaces.
+The existing C++ implementation of PVValueArray has serious problems.
+The shared_vector that is implemented in pvDataCP-md provides the solution to fixing
+the problems. This document describes an API that is very similar to the new Java API
+except that raw arrays are replaced by shared_vector.</p>
+<p>This document will first describe changes to the existing Java interfaces
+and then the corresponding C++ API.</p>
+<h2>Java API</h2>
+<p>The following shows which methods will be removed from the existing interfaces
+and what will be added.
+The methods to be removed are in <font color = "red">red</font>
+and methods to add are in <font color = "blue">blue</font>
+Also the removed methods are at the end with a comment above.
+The new methods also have a comment.
+</p>
+<h3>Introspection Interfaces</h3>
+
+<pre>interface Field extends Serializable {
+    std::string getId();
+    Type getType();
+    // following will be removed
+    <font color = "red">void toString(StringBuilder buf);</font>
+    <font color = "red">void toString(StringBuilder buf,int indentLevel);</font>
+    <font color = "red">std::string toString();</font>
+}
+
+<font color = "blue">
+// new interface
+interface FieldTostd::string {
+    std::string toString(Field field);
+}</font>
+
+interface Scalar extends Field {
+    ScalarType getScalarType();
+}
+
+interface ScalarArray extends Field {
+    ScalarType getElementType();
+}
+
+interface Structure extends Field {
+    Field getField(std::string fieldName);
+    int getFieldIndex(std::string fieldName);
+    Field[] getFields();
+    Field getField(int fieldIndex);
+    std::string[] getFieldNames();
+    std::string getFieldName(int fieldIndex)
+}
+
+interface StructureArray extends Field {
+    Structure getStructure();
+}
+
+interface FieldCreate {
+    Scalar createScalar(ScalarType scalarType);
+    ScalarArray createScalarArray(ScalarType elementType);
+    StructureArray createStructureArray(Structure elementStructure);
+    Structure createStructure(std::string[] fieldNames, Field[] field);
+    Structure createStructure(std::string id,std::string[] fieldNames, Field[] field);
+    Structure createStructure(Structure structToClone);
+    Field deserialize(ByteBuffer buffer, DeserializableControl control);
+    // following will be removed
+    <font color = "red">Structure appendField(Structure structure,std::string fieldName, Field field);</font>
+    <font color = "red">Structure appendFields(Structure structure,std::string[] fieldNames, Field[] fields);</font>
+}
+</pre>
+<h3>Data Interfaces</h3>
+<pre>
+interface PVField extends Requester, Serializable {
+    std::string getFieldName();
+    void setRequester(Requester requester);
+    int getFieldOffset();
+    int getNextFieldOffset();
+    int getNumberFields();
+    Field getField();
+    PVStructure getParent();
+    void postPut();
+    void setPostHandler(PostHandler postHandler);
+    // following will be removed
+    <font color = "red">PVAuxInfo getPVAuxInfo();</font>
+    <font color = "red">boolean isImmutable();</font>
+    <font color = "red">void setImmutable();</font>
+    <font color = "red">void renameField(std::string newName);</font>
+    <font color = "red">void toString(StringBuilder buf);</font>
+    <font color = "red">void toString(StringBuilder buf,int indentLevel);</font>
+    <font color = "red">std::string toString();</font>
+}
+
+<font color = "blue">
+// The following is a new interface
+interface PVFieldTostd::string {
+    std::string toString(PVField pvField);
+    void setMaxInitialArrayElements(int num);
+    void setMaxFinalArrayElements(int num);
+    int getMaxInitialArrayElements();
+    int getMaxFinalArrayElements();
+}</font>
+    
+interface PVScalar extends PVField{
+    Scalar getScalar();
+}
+
+interface PVDouble extends PVScalar{
+    double get();
+    void put(double value);
+}
+// also PVBoolean, PVByte, PVShort, PVInt, PVLong, PVFloat, and PVString
+
+interface PVArray extends PVField, SerializableArray {
+    int getLength();
+    void setLength(int length);
+    int getCapacity();
+    void setCapacity(int length);
+    // following will be removed
+    <font color = "red">boolean isCapacityMutable();</font>
+    <font color = "red">void setCapacityMutable(boolean isMutable);</font>
+}
+
+interface PVScalarArray extends PVArray {
+    ScalarArray getScalarArray();
+}
+
+<font color = "red">
+//following will be removed
+public class DoubleArrayData {
+    public double[] data;
+    public int offset;
+}</font>
+
+interface PVDoubleArray extends PVArray {
+    // following are new
+<font color = "blue">    double[] get();</font>
+<font color = "blue">    void swap(double[] value);</font>
+    //following will be removed
+<font color = "red">    int get(int offset, int len, DoubleArrayData data);</font>
+<font color = "red">    int put(int offset,int len, double[] from, int fromOffset)</font>;
+<font color = "red">    void shareData(double[] from);</font>
+}
+
+// also PVBooleanArray, ..., PVStringArray
+
+
+interface PVStructure extends PVField , BitSetSerializable{
+    Structure getStructure();
+    PVField[] getPVFields();
+    PVField getSubField(std::string fieldName);
+    PVField getSubField(int fieldOffset);
+    // The following are convenience methods
+    PVBoolean getBooleanField(std::string fieldName);
+    PVByte getByteField(std::string fieldName);
+    PVShort getShortField(std::string fieldName);
+    PVInt getIntField(std::string fieldName);
+    PVLong getLongField(std::string fieldName);
+    PVFloat getFloatField(std::string fieldName);
+    PVDouble getDoubleField(std::string fieldName);
+    PVString getStringField(std::string fieldName);
+    PVScalarArray getScalarArrayField(std::string fieldName);
+    PVStructureArray getStructureArrayField(std::string fieldName);
+    PVStructure getStructureField(std::string fieldName);
+    PVArray getArrayField(std::string fieldName,ScalarType elementType);
+    // following will be removed
+<font color = "red">    void appendPVField(std::string fieldName,PVField pvField);</font>
+<font color = "red">    void appendPVFields(std::string[] fieldNames,PVField[] pvFields);</font>
+<font color = "red">    void removePVField(std::string fieldName);</font>
+<font color = "red">    void replacePVField(PVField oldPVField,PVField newPVField);</font>
+<font color = "red">    std::string getExtendsStructureName();</font>
+<font color = "red">    boolean putExtendsStructureName(std::string extendsStructureName);</font>
+<font color = "red">    public boolean checkValid();</font>
+}
+ 
+<font color = "red">
+//following will be removed
+public class StructureArrayData {
+    public PVStructure[] data;
+    public int offset;
+}
+</font>
+
+interface PVStructureArray extends PVArray{
+    StructureArray getStructureArray();
+    // following are new
+<font color = "blue">    PVStructure[] get();</font>
+<font color = "blue">    void swap(PVStructure[] value);</font>
+    // following will be removed
+<font color = "red">    int get(int offset, int length, StructureArrayData data);</font>
+<font color = "red">    int put(int offset,int length, PVStructure[] from, int fromOffset);</font>
+<font color = "red">    void shareData(PVStructure[] from);</font>
+}
+
+
+public interface PVDataCreate {
+    PVField createPVField(Field field);
+    PVField createPVField(PVField fieldToClone);
+    PVScalar createPVScalar(Scalar scalar);
+    PVScalar createPVScalar(ScalarType fieldType);
+    PVScalar createPVScalar(PVScalar scalarToClone);
+    PVScalarArray createPVScalarArray(ScalarArray array);
+    PVScalarArray createPVScalarArray(ScalarType elementType);
+    PVScalarArray createPVScalarArray(PVScalarArray arrayToClone;
+    PVStructureArray createPVStructureArray(StructureArray structureArray);
+    PVStructure createPVStructure(Structure structure);
+    PVStructure createPVStructure(std::string[] fieldNames,Field[] fields);
+    PVStructure createPVStructure(PVStructure structToClone);
+    // following will be removed
+    <font color = "red">PVField[] flattenPVStructure(PVStructure pvStructure);</font>
+}
+</pre>
+<h3>PVFieldTostd::string</h3>
+<p>In addition to toString this has methods to limit the number of array element to display.
+The existing Java implementation of toString displayed all elements.
+For large arrays this is not desirable.
+The new methods provide a way for the client to limit the number of elements.
+The default might be set to something like display up to 10 elements with 5 fron the beginning and 5 from the end.</p>
+<p>For C++ this can be a replacement for dumpValue.</p>
+<h3>PVBooleanArray, ..., PVStructureArray</h3>
+<p>The old get and put are replaced by two new and simpler methods:
+<dl>
+   <dt>get</dt>
+     <dd>Returns the raw array. If the client code modifies the elements in the array then
+      the client must call postPut. The client also has to realize that if the raw array held by the PVXXXArray changes
+      then the client is no longer sharing data
+   <dt>swap</dt>
+      <dd>This exchanges the old raw data with the new raw data.</dd>
+</dl>
+</p>
+<p>
+The method <b>setCapacity</b> will always create a new raw array and copy old data from the old to the new array.
+This is not true now since the implementation does not create a new array if the old capacity is equal to the requested capacity.
+</p>
+<h2>C++ API</h2>
+<p>The C++ class definitions are similar to the Java definitions with two main exceptions:
+<dl>
+   <dt>toString</dt>
+     <dd>In c++ this is replaced by std::ostream.</dd>
+   <dt>raw array data</dt>
+      <dd>Java supports array data like <b>double[]</b>
+       The C++ replacement is shared_vector&lt;double&gt;, which  is implemented
+       in pvDataCPP-md.</dd
+</dl>
+<h3>Introspection Interfaces</h3>
+
+<pre>
+class Field :
+    virtual public Serializable,
+    public std::tr1::enable_shared_from_this&lt;Field&gt;
+{
+public:
+    POINTER_DEFINITIONS(Field);
+    virtual ~Field();
+    Type getType() const{return m_type;}
+    virtual std::string getID() const = 0;
+    <font color = "red">
+    // following will be removed
+    virtual void toString(StringBuilder buf) const{toString(buf,0);}
+    virtual void toString(StringBuilder buf,int indentLevel) const;
+    </font>
+ ...
+};
+<font color = "blue">
+// new function
+std::ostream &amp;toString(Field::const_reference field, std::ostream&amp; o);
+</font>
+
+class Scalar : public Field{
+public:
+    POINTER_DEFINITIONS(Scalar);
+    virtual ~Scalar();
+    typedef Scalar&amp; reference;
+    typedef const Scalar&amp; const_reference;
+
+    ScalarType getScalarType() const {return scalarType;}
+    virtual void serialize(ByteBuffer *buffer, SerializableControl *control) const;
+    virtual void deserialize(ByteBuffer *buffer, DeserializableContol *control);
+    <font color = "red">
+    // following will be removed
+    virtual void toString(StringBuilder buf) const{toString(buf,0);}
+    virtual void toString(StringBuilder buf,int indentLevel) const;
+    virtual std::string getID() const;
+    </font>
+ ...
+};
+class ScalarArray : public Field{
+public:
+    POINTER_DEFINITIONS(ScalarArray);
+    typedef ScalarArray&amp; reference;
+    typedef const ScalarArray&amp; const_reference;
+
+    ScalarArray(ScalarType scalarType);
+    ScalarType  getElementType() const {return elementType;}
+    virtual void serialize(ByteBuffer *buffer, SerializableControl *control) const;
+    virtual void deserialize(ByteBuffer *buffer, DeserializableControl *control);
+    <font color = "red">
+    // following will be removed
+    virtual void toString(StringBuilder buf) const{toString(buf,0);}
+    virtual void toString(StringBuilder buf,int indentLevel) const;
+    virtual std::string getID() const;
+    </font>
+ ...
+};
+
+class Structure : public Field {
+public:
+    POINTER_DEFINITIONS(Structure);
+    typedef Structure&amp; reference;
+    typedef const Structure&amp; const_reference;
+
+   std::size_t getNumberFields() const {return numberFields;}
+   FieldConstPtr getField(std::string const &amp; fieldName) const;
+   FieldConstPtr getField(std::size_t index) const;
+   std::size_t getFieldIndex(std::string const &amp;fieldName) const;
+   FieldConstPtrArray const &amp; getFields() const {return fields;}
+   StringArray const &amp; getFieldNames() const;
+   std::string getFieldName(std::size_t fieldIndex);
+   virtual void serialize(ByteBuffer *buffer, SerializableControl *control) const;
+   virtual void deserialize(ByteBuffer *buffer, DeserializableControl *control);
+    <font color = "red">
+    // following will be removed
+   void renameField(std::size_t fieldIndex,std::string const &amp;newName);
+   virtual void toString(StringBuilder buf,int indentLevel) const;
+   virtual std::string getID() const;
+   </font>
+ ...
+};
+
+class StructureArray : public Field{
+public:
+    POINTER_DEFINITIONS(StructureArray);
+    typedef StructureArray&amp; reference;
+    typedef const StructureArray&amp; const_reference;
+
+    StructureConstPtr  getStructure() const {return pstructure;}
+    virtual void serialize(ByteBuffer *buffer, SerializableControl *control) const;
+    virtual void deserialize(ByteBuffer *buffer, DeserializableControl *control);
+    <font color = "red">
+    // following will be removed
+    virtual void toString(StringBuilder buf,int indentLevel=0) const;
+    virtual std::string getID() const;
+    </font>
+ ...
+};
+
+class FieldCreate  {
+public:
+    static FieldCreatePtr getFieldCreate();
+    ScalarConstPtr  createScalar(ScalarType scalarType) const
+    ScalarArrayConstPtr createScalarArray(ScalarType elementType) const;
+    StructureArrayConstPtr createStructureArray(StructureConstPtr const &amp; structure) const;
+    StructureConstPtr createStructure (
+        StringArray const &amp; fieldNames,
+        FieldConstPtrArray const &amp; fields) const;
+    StructureConstPtr createStructure (
+        std::string const &amp;id,
+        StringArray const &amp; fieldNames,
+        FieldConstPtrArray const &amp; fields) const;
+    FieldConstPtr deserialize(ByteBuffer* buffer, DeserializableControl* control) const;
+    <font color = "red">
+    // following will be removed
+    StructureConstPtr appendField(
+        StructureConstPtr const &amp; structure,
+        std::string const &amp;fieldName, FieldConstPtr const &amp; field) const;
+    StructureConstPtr appendFields(
+        StructureConstPtr const &amp; structure,
+        StringArray const &amp; fieldNames,
+        FieldConstPtrArray const &amp; fields) const;
+    </font>
+ ...
+};
+
+extern FieldCreatePtr getFieldCreate();
+ </pre>
+<h3>Data Interfaces</h3>
+<pre>
+class PVField
+: virtual public Serializable,
+  public std::tr1::enable_shared_from_this&lt;PVField&gt;
+{
+public:
+   POINTER_DEFINITIONS(PVField);
+   virtual ~PVField();
+   inline const std::string &amp;getFieldName() const ;
+   virtual void setRequester(RequesterPtr const &amp;prequester);
+   std::size_t getFieldOffset() const;
+   std::size_t getNextFieldOffset() const;
+   std::size_t getNumberFields() const;
+   const FieldConstPtr &amp; getField() const ;
+   PVStructure * getParent() const
+   void postPut() ;
+   void setPostHandler(PostHandlerPtr const &amp;postHandler);
+    // following will be removed
+    <font color = "red">
+   virtual void message(std::string message,MessageType messageType);
+   void replacePVField(const PVFieldPtr&amp;  newPVField);
+   std::string getFullName() const;
+   virtual bool equals(PVField &amp;pv);
+   PVAuxInfoPtr &amp; getPVAuxInfo()
+   bool isImmutable() const;
+   virtual void setImmutable();
+   void replacePVField(const PVFieldPtr&amp;  newPVField);
+   void renameField(std::string const &amp;newName);
+   virtual void toString(StringBuilder buf) ;
+   virtual void toString(StringBuilder buf,int indentLevel);
+   std::ostream&amp; dumpValue(std::ostream&amp; o) const;
+   </font>
+ ...
+};
+
+<font color = "blue">
+// The following is a new class
+class PVFieldTostd::string {
+    std::string toString(const PVFieldPtr &amp;pvField);
+    void setMaxInitialArrayElements(size_t num);
+    void setMaxFinalArrayElements(size_t num);
+    size_t getMaxInitialArrayElements();
+    size_t getMaxFinalArrayElements();
+...
+}</font>
+
+class PVScalar : public PVField {
+public:
+    POINTER_DEFINITIONS(PVScalar);
+    virtual ~PVScalar();
+    typedef PVScalar &amp;reference;
+    typedef const PVScalar&amp; const_reference;
+
+    const ScalarConstPtr getScalar() const ;
+ ...
+}
+
+
+template&lt;typename T&gt;
+class PVScalarValue : public PVScalar {
+public:
+    POINTER_DEFINITIONS(PVScalarValue);
+    typedef T value_type;
+    typedef T* pointer;
+    typedef const T* const_pointer;
+
+    virtual ~PVScalarValue() {}
+    virtual T get() const = 0;
+    virtual void put(T value) = 0;
+    <font color = "red">
+    // following will be removed
+    std::ostream&amp; dumpValue(std::ostream&amp; o)
+    void operator&gt;&gt;=(T&amp; value) const;
+    void operator&lt;&lt;=(T value);
+    </font>
+ ...
+}
+
+// PVString is special case, since it implements SerializableArray
+class PVString : public PVScalarValue&lt;std::string&gt;, SerializableArray {
+public:
+    virtual ~PVString() {}
+ ...
+}
+class PVArray : public PVField, public SerializableArray {
+public:
+    POINTER_DEFINITIONS(PVArray);
+    virtual ~PVArray();
+    std::size_t getLength() const;
+    virtual void setLength(std::size_t length);
+    std::size_t getCapacity() const;
+    virtual void setCapacity(std::size_t capacity) = 0;
+    <font color = "red">
+    // following will be removed
+    virtual void setImmutable();
+    bool isCapacityMutable() const;
+    void setCapacityMutable(bool isMutable);
+    virtual std::ostream&amp; dumpValue(std::ostream&amp; o, std::size_t index) const = 0;
+    </font>
+ ...
+};
+
+class PVScalarArray : public PVArray {
+public:
+    POINTER_DEFINITIONS(PVScalarArray);
+    virtual ~PVScalarArray();
+    typedef PVScalarArray &amp;reference;
+    typedef const PVScalarArray&amp; const_reference;
+
+    const ScalarArrayConstPtr getScalarArray() const ;
+    <font color = "red">
+    // following will be removed
+    virtual std::ostream&amp; dumpValue(std::ostream&amp; o, size_t index) const = 0;
+    </font>
+ ...
+}
+
+<font color = "red">
+// following will be removed
+template&lt;typename T&gt;
+class PVArrayData {
+private:
+    std::vector&lt;T&gt; init;
+public:
+    POINTER_DEFINITIONS(PVArrayData);
+    typedef T  value_type;
+    typedef T* pointer;
+    typedef const T* const_pointer;
+    std::vector&lt;T&gt; &amp; data;
+    std::size_t offset;
+    PVArrayData()
+    : data(init)
+    {}
+};
+</font>
+
+template&lt;typename T&gt;
+class PVValueArray : public PVScalarArray {
+public:
+    POINTER_DEFINITIONS(PVValueArray);
+    typedef T  value_type;
+    typedef T* pointer;
+    typedef const T* const_pointer;
+    // following are new typeDefs
+    <font color = "blue">typedef shared_vector&lt;T&gt; svector;</font>
+    <font color = "blue">typedef shared_vector&lt;const T&gt; const_svector; </font>
+
+    virtual ~PVValueArray() {}
+    // following are added
+    <font color = "blue">svector get();</font>
+    <font color = "blue">void swap(svector&amp; value);</font>
+    <font color = "red">
+    // following are removed
+    typedef PVValueArray &amp; reference;
+    typedef const PVValueArray &amp; const_reference;
+    typedef PVArrayData&lt;T&gt; ArrayDataType;
+    typedef std::vector&lt;T&gt; vector;
+    typedef const std::vector&lt;T&gt; const_vector;
+    typedef std::tr1::shared_ptr&lt;vector&gt; shared_vector;
+
+    virtual std::size_t get(
+         std::size_t offset, std::size_t length, ArrayDataType &amp;data) = 0;
+    virtual std::size_t put(std::size_t offset,
+        std::size_t length, const_pointer from, std::size_t fromOffset) = 0;
+    virtual std::size_t put(std::size_t offset,
+        std::size_t length, const_vector &amp;from, std::size_t fromOffset);
+    virtual void shareData(
+         shared_vector const &amp; value,
+         std::size_t capacity,
+         std::size_t length) = 0;
+    virtual pointer get() = 0;
+    virtual pointer get() const = 0;
+    virtual vector const &amp; getVector() = 0;
+    virtual shared_vector const &amp; getSharedVector() = 0;
+    std::ostream&amp; dumpValue(std::ostream&amp; o) const;
+    std::ostream&amp; dumpValue(std::ostream&amp; o, size_t index) const;
+    </font>
+...
+};
+
+typedef PVValueArray&lt;uint8&gt; PVBooleanArray;
+typedef std::tr1::shared_ptr&lt;PVBooleanArray&gt; PVBooleanArrayPtr;
+...
+typedef PVValueArray&lt;std::string&gt; PVStringArray;
+typedef std::tr1::shared_ptr&lt;PVStringArray&gt; PVStringArrayPtr;
+
+class PVStructure : public PVField,public BitSetSerializable {
+public:
+    POINTER_DEFINITIONS(PVStructure);
+    virtual ~PVStructure();
+    typedef PVStructure &amp; reference;
+    typedef const PVStructure &amp; const_reference;
+
+    StructureConstPtr getStructure() const;
+    const PVFieldPtrArray &amp; getPVFields() const;
+    PVFieldPtr getSubField(std::string const &amp;fieldName) const;
+    PVFieldPtr getSubField(std::size_t fieldOffset) const;
+    PVBooleanPtr getBooleanField(std::string const &amp;fieldName) ;
+    PVBytePtr getByteField(std::string const &amp;fieldName) ;
+    PVShortPtr getShortField(std::string const &amp;fieldName) ;
+    PVIntPtr getIntField(std::string const &amp;fieldName) ;
+    PVLongPtr getLongField(std::string const &amp;fieldName) ;
+    PVUBytePtr getUByteField(std::string const &amp;fieldName) ;
+    PVUShortPtr getUShortField(std::string const &amp;fieldName) ;
+    PVUIntPtr getUIntField(std::string const &amp;fieldName) ;
+    PVULongPtr getULongField(std::string const &amp;fieldName) ;
+    PVFloatPtr getFloatField(std::string const &amp;fieldName) ;
+    PVDoublePtr getDoubleField(std::string const &amp;fieldName) ;
+    PVStringPtr getStringField(std::string const &amp;fieldName) ;
+    PVStructurePtr getStructureField(std::string const &amp;fieldName) ;
+    PVScalarArrayPtr getScalarArrayField(
+        std::string const &amp;fieldName,ScalarType elementType) ;
+    PVStructureArrayPtr getStructureArrayField(std::string const &amp;fieldName) ;
+    virtual void serialize(
+        ByteBuffer *pbuffer,SerializableControl *pflusher) const ;
+    virtual void deserialize(
+        ByteBuffer *pbuffer,DeserializableControl *pflusher);
+    virtual void serialize(ByteBuffer *pbuffer,
+        SerializableControl *pflusher,BitSet *pbitSet) const;
+    virtual void deserialize(ByteBuffer *pbuffer,
+        DeserializableControl*pflusher,BitSet *pbitSet);
+    PVStructure(StructureConstPtr const &amp; structure);
+    PVStructure(StructureConstPtr const &amp; structure,PVFieldPtrArray const &amp; pvFields);
+    <font color = "red">
+    // following are removed
+    void appendPVField(
+        std::string const &amp;fieldName,
+        PVFieldPtr const &amp; pvField);
+    void appendPVFields(
+        StringArray const &amp; fieldNames,
+        PVFieldPtrArray const &amp; pvFields);
+    void removePVField(std::string const &amp;fieldName);
+    virtual void setImmutable();
+    std::string getExtendsStructureName() const;
+    bool putExtendsStructureName(
+        std::string const &amp;extendsStructureName);
+    </font>
+};
+
+<font color = "red">
+// following will be removed
+typedef PVArrayData&lt;PVStructurePtr&gt; StructureArrayData;
+</font>
+
+class PVStructureArray : public PVArray
+{
+public:
+    POINTER_DEFINITIONS(PVStructureArray);
+    typedef PVStructurePtr  value_type;
+    typedef PVStructurePtr* pointer;
+    typedef const PVStructurePtr* const_pointer;
+    <font color = "blue">
+    // following are new typeDefs
+    typedef shared_vector&lt;PVStructurePtr&gt; svector;
+    typedef shared_vector&lt;const PVStructurePtr&gt; const_svector;
+    </font>
+
+    virtual ~PVStructureArray() {}
+    virtual void setCapacity(size_t capacity);
+    virtual void setLength(std::size_t length);
+    virtual StructureArrayConstPtr getStructureArray() const ;
+    virtual void serialize(ByteBuffer *pbuffer,
+        SerializableControl *pflusher) const;
+    virtual void deserialize(ByteBuffer *buffer,
+    virtual void serialize(ByteBuffer *pbuffer,
+        SerializableControl *pflusher, std::size_t offset, std::size_t count) const ;
+    // following are new
+<font color = "blue">    svector get();</font>
+<font color = "blue">    void swap(svector &amp; value);</font>
+    <font color = "red">
+    // following are removed
+    typedef PVArrayData&lt;PVStructurePtr&gt; ArrayDataType;
+    typedef std::vector&lt;PVStructurePtr&gt; vector;
+    typedef const std::vector&lt;PVStructurePtr&gt; const_vector;
+    typedef std::tr1::shared_ptr&lt;vector&gt; shared_vector;
+    typedef PVStructureArray &amp;reference;
+    typedef const PVStructureArray&amp; const_reference;
+    
+    virtual std::size_t append(std::size_t number);
+    virtual bool remove(std::size_t offset,std::size_t number);
+    virtual void compress();
+    virtual std::size_t get(std::size_t offset, std::size_t length,
+        StructureArrayData &amp;data);
+    virtual std::size_t put(std::size_t offset,std::size_t length,
+        const_vector const &amp; from, std::size_t fromOffset);
+    virtual void shareData(
+         shared_vector const &amp; value,
+         std::size_t capacity,
+         std::size_t length);
+    virtual pointer get() { return &amp;((*value.get())[0]); }
+    virtual pointer get() const { return &amp;((*value.get())[0]); }
+    virtual vector const &amp; getVector() {return *value;}
+    virtual shared_vector const &amp; getSharedVector() {return value;}
+    </font>
+ ...
+};
+
+class PVDataCreate {
+public:
+    static PVDataCreatePtr getPVDataCreate();
+    PVFieldPtr createPVField(FieldConstPtr const &amp; field);
+    PVFieldPtr createPVField(PVFieldPtr const &amp; fieldToClone);
+    PVScalarPtr createPVScalar(ScalarConstPtr const &amp; scalar);
+    PVScalarPtr createPVScalar(ScalarType scalarType);
+    PVScalarPtr createPVScalar(PVScalarPtr const &amp; scalarToClone);
+    PVScalarArrayPtr createPVScalarArray(ScalarArrayConstPtr const &amp; scalarArray);
+    PVScalarArrayPtr createPVScalarArray(ScalarType elementType);
+    PVScalarArrayPtr createPVScalarArray(PVScalarArrayPtr const  &amp; scalarArrayToClone);
+    PVStructureArrayPtr createPVStructureArray(StructureArrayConstPtr const &amp; structureArray);
+    PVStructurePtr createPVStructure(StructureConstPtr const &amp; structure);
+    PVStructurePtr createPVStructure(
+        StringArray const &amp; fieldNames,PVFieldPtrArray const &amp; pvFields);
+   PVStructurePtr createPVStructure(PVStructurePtr const &amp; structToClone);
+ ...
+};
+
+extern PVDataCreatePtr getPVDataCreate();
+</pre>
+
+
+</div>
+</body>
+</html>

jenkins/cloudbees_build

@@ -0,0 +1,56 @@
+# pvData C++ implementation
+# Jenkins @ Cloudbees build script
+#
+# Jenkins invokes scripts with the "-ex" option. So the build is considered a failure
+# if any of the commands exits with a non-zero exit code.
+#
+# Author: Ralph Lange <Ralph.Lange@gmx.de>
+# Copyright (C) 2013 Helmholtz-Zentrum Berlin für Materialien und Energie GmbH
+# All rights reserved. Use is subject to license terms.
+
+###########################################
+# Fetch and unpack dependencies
+
+export STUFF=/tmp/stuff
+
+rm -fr ${STUFF}
+mkdir -p ${STUFF}
+cd ${STUFF}
+
+wget -nv https://openepics.ci.cloudbees.com/job/Base-3.14.12.3_Build/lastSuccessfulBuild/artifact/baseR3.14.12.3.CB-dist.tar.gz
+wget -nv https://openepics.ci.cloudbees.com/job/Doxygen-1.8.3_Build/lastSuccessfulBuild/artifact/doxygen-1.8.3.CB-dist.tar.gz
+tar -xzf baseR3.14.12.3.CB-dist.tar.gz
+tar -xzf doxygen-1.8.3.CB-dist.tar.gz
+
+###########################################
+# Build
+
+cd ${WORKSPACE}
+
+export EPICS_BASE=${STUFF}
+export EPICS_HOST_ARCH=$(${EPICS_BASE}/startup/EpicsHostArch)
+export LD_LIBRARY_PATH=${EPICS_BASE}/lib/${EPICS_HOST_ARCH}
+export PATH=${STUFF}/bin:${PATH}
+
+cat > configure/RELEASE.local << EOF
+EPICS_BASE=${EPICS_BASE}
+EOF
+
+make distclean all
+doxygen
+
+###########################################
+# Test
+
+# EPICS Test Harness tests
+make runtests
+
+###########################################
+# Create distribution
+
+tar czf pvData.CB-dist.tar.gz lib include COPYRIGHT LICENSE
+
+###########################################
+# Publish documentation
+
+rsync -aP --delete -e ssh documentation epics-jenkins@web.sourceforge.net:/home/project-web/epics-pvdata/htdocs/docbuild/pvDataCPP/tip

jenkins/cloudbees_hgweb

@@ -0,0 +1,20 @@
+# pvData C++ implementation
+# Jenkins @ Cloudbees hgweb sync script
+#
+# Jenkins invokes scripts with the "-ex" option. So the build is considered a failure
+# if any of the commands exits with a non-zero exit code.
+#
+# Author: Ralph Lange <Ralph.Lange@gmx.de>
+# Copyright (C) 2013 Helmholtz-Zentrum Berlin für Materialien und Energie GmbH
+# All rights reserved. Use is subject to license terms.
+
+###########################################
+# Fetch complete repo
+
+rm -fr hgweb
+hg clone -U http://hg.code.sf.net/p/epics-pvdata/pvDataCPP hgweb
+
+###########################################
+# Sync into SF webspace
+
+rsync -aqP --delete --exclude=\.hg/hgrc -e ssh hgweb/.hg epics-jenkins@web.sourceforge.net:/home/project-web/epics-pvdata/repos/pvDataCPP

pvDataApp/Makefile

@@ -1,101 +0,0 @@
-TOP = ..
-include $(TOP)/configure/CONFIG
-
-PVDATA = $(TOP)/pvDataApp/
-
-SRC_DIRS += $(PVDATA)/misc
-
-INC += noDefaultMethods.h
-INC += lock.h
-INC += requester.h
-INC += serialize.h
-INC += bitSet.h
-INC += byteBuffer.h
-INC += epicsException.h
-INC += serializeHelper.h
-INC += event.h
-INC += thread.h
-INC += executor.h
-INC += timeFunction.h
-INC += timer.h
-INC += queue.h
-INC += messageQueue.h
-INC += destroyable.h
-INC += status.h
-INC += sharedPtr.h
-INC += localStaticLock.h
-
-LIBSRCS += byteBuffer.cpp
-LIBSRCS += bitSet.cpp
-LIBSRCS += epicsException.cpp
-LIBSRCS += requester.cpp
-LIBSRCS += serializeHelper.cpp
-LIBSRCS += event.cpp
-LIBSRCS += executor.cpp
-LIBSRCS += timeFunction.cpp
-LIBSRCS += timer.cpp
-LIBSRCS += status.cpp
-LIBSRCS += messageQueue.cpp
-LIBSRCS += localStaticLock.cpp
-
-SRC_DIRS += $(PVDATA)/pv
-
-INC += pvType.h
-INC += pvIntrospect.h
-INC += pvData.h
-INC += convert.h
-INC += standardField.h
-INC += standardPVField.h
-
-SRC_DIRS += $(PVDATA)/factory
-
-INC += factory.h
-LIBSRCS += TypeFunc.cpp
-LIBSRCS += FieldCreateFactory.cpp
-LIBSRCS += PVAuxInfoImpl.cpp
-LIBSRCS += PVField.cpp
-LIBSRCS += PVScalar.cpp
-LIBSRCS += PVArray.cpp
-LIBSRCS += PVScalarArray.cpp
-LIBSRCS += PVStructure.cpp
-LIBSRCS += PVStructureArray.cpp
-LIBSRCS += PVDataCreateFactory.cpp
-LIBSRCS += Convert.cpp
-LIBSRCS += Compare.cpp
-LIBSRCS += StandardField.cpp
-LIBSRCS += StandardPVField.cpp
-
-SRC_DIRS += $(PVDATA)/property
-
-INC += alarm.h
-INC += pvAlarm.h
-INC += control.h
-INC += pvControl.h
-INC += display.h
-INC += pvDisplay.h
-INC += pvEnumerated.h
-INC += timeStamp.h
-INC += pvTimeStamp.h
-
-LIBSRCS += alarm.cpp 
-LIBSRCS += pvAlarm.cpp 
-LIBSRCS += pvControl.cpp 
-LIBSRCS += pvDisplay.cpp 
-LIBSRCS += pvEnumerated.cpp 
-LIBSRCS += timeStamp.cpp
-LIBSRCS += pvTimeStamp.cpp
-
-SRC_DIRS += $(PVDATA)/pvMisc
-INC += bitSetUtil.h
-LIBSRCS += bitSetUtil.cpp 
-
-SRC_DIRS += $(PVDATA)/monitor
-INC += monitor.h
-
-
-LIBRARY=pvData
-
-pvData_LIBS += Com
-
-include $(TOP)/configure/RULES
-

pvDataApp/factory/Compare.cpp

@@ -1,108 +0,0 @@
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
- */
-/**
- * @author mes
- */
-
-#include <pv/convert.h>
-
-#include <algorithm>
-#include <iterator>
-#include <sstream>
-
-namespace epics { namespace pvData {
-
-// PVXXX object comparison
-
-bool operator==(PVField& left, PVField& right)
-{
- return getConvert()->equals(left,right);
-}
-
-// Introspection object comparision
-
-/** Field equality conditions:
- * 1) same instance
- * 2) same type (field and scalar/element), same name, same subfields (if any)
- */
-bool operator==(const Field& a, const Field& b)
-{
-    if(&a==&b)
-        return true;
-    if(a.getType()!=b.getType())
-        return false;
-    switch(a.getType()) {
-    case scalar: {
-        const Scalar &A=static_cast<const Scalar&>(a);
-        const Scalar &B=static_cast<const Scalar&>(b);
-        return A==B;
-    }
-    case scalarArray: {
-            const ScalarArray &A=static_cast<const ScalarArray&>(a);
-            const ScalarArray &B=static_cast<const ScalarArray&>(b);
-            return A==B;
-        }
-    case structure: {
-            const Structure &A=static_cast<const Structure&>(a);
-            const Structure &B=static_cast<const Structure&>(b);
-            return A==B;
-        }
-    case structureArray: {
-            const StructureArray &A=static_cast<const StructureArray&>(a);
-            const StructureArray &B=static_cast<const StructureArray&>(b);
-            return A==B;
-        }
-    default:
-        throw std::logic_error("Invalid Field type in comparision");
-    }
-}
-
-bool operator==(const Scalar& a, const Scalar& b)
-{
-    if(&a==&b)
-        return true;
-    return a.getScalarType()==b.getScalarType();
-}
-
-bool operator==(const ScalarArray& a, const ScalarArray& b)
-{
-    if(&a==&b)
-        return true;
-    return a.getElementType()==b.getElementType();
-}
-
-bool operator==(const Structure& a, const Structure& b)
-{
-    if(&a==&b)
-        return true;
-    if (a.getID()!=b.getID())
-    	return false;
-    size_t nflds=a.getNumberFields();
-    if (b.getNumberFields()!=nflds)
-        return false;
-
-    // std::equals does not work, since FieldConstPtrArray is an array of shared_pointers
-    FieldConstPtrArray af = a.getFields();
-    FieldConstPtrArray bf = b.getFields();
-    for (size_t i = 0; i < nflds; i++)
-        if (*(af[i].get()) != *(bf[i].get()))
-            return false;
-
-    StringArray an = a.getFieldNames();
-    StringArray bn = b.getFieldNames();
-    return std::equal( an.begin(), an.end(), bn.begin() );
-}
-
-bool operator==(const StructureArray& a, const StructureArray& b)
-{
-    return *(a.getStructure().get())==*(b.getStructure().get());
-}
-
-namespace nconvert {
-
-} // namespace nconvert
-
-}} // namespace epics::pvData

pvDataApp/factory/FieldCreateFactory.cpp

@@ -1,563 +0,0 @@
-/*FieldCreateFactory.cpp*/
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
- */
-/**
- *  @author mrk
- */
-#include <cstddef>
-#include <cstdlib>
-#include <string>
-#include <cstdio>
-#include <pv/lock.h>
-#include <pv/pvIntrospect.h>
-#include <pv/convert.h>
-#include <pv/factory.h>
-#include <pv/serializeHelper.h>
-
-using std::tr1::static_pointer_cast;
-using std::size_t;
-
-namespace epics { namespace pvData {
-
-static DebugLevel debugLevel = lowDebug;
-
-static void newLine(StringBuilder buffer, int indentLevel)
-{
-    *buffer += "\n";
-    for(int i=0; i<indentLevel; i++) *buffer += "    ";
-}
-
-Field::Field(Type type)
-    : m_fieldType(type)
-{
-}
-
-Field::~Field() {
-}
-
-
-void Field::toString(StringBuilder buffer,int indentLevel) const{
-}
-
-
-// TODO move all these to a header file
-
-struct ScalarHashFunction {
-    size_t operator() (const Scalar& scalar) const { return scalar.getScalarType(); }
-};
-
-struct ScalarArrayHashFunction {
-    size_t operator() (const ScalarArray& scalarArray) const { return 0x10 | scalarArray.getElementType(); }
-};
-
-struct StructureHashFunction {
-    size_t operator() (const Structure& structure) const { return 0; }
-    // TODO
-//        final int PRIME = 31;
-//        return PRIME * Arrays.hashCode(fieldNames) + Arrays.hashCode(fields);
-};
-
-struct StructureArrayHashFunction {
-    size_t operator() (const StructureArray& structureArray) const { StructureHashFunction shf; return (0x10 | shf(*(structureArray.getStructure()))); }
-};
-
-
-Scalar::Scalar(ScalarType scalarType)
-       : Field(scalar),scalarType(scalarType){}
-
-Scalar::~Scalar(){}
-
-void Scalar::toString(StringBuilder buffer,int indentLevel) const{
-    *buffer += getID();
-}
-
-
-String Scalar::getID() const
-{
-    static const String idScalarLUT[] = {
-	"boolean", // pvBoolean
-	"byte",    // pvByte
-	"short",   // pvShort
-	"int",     // pvInt
-	"long",    // pvLong
-	"ubyte",   // pvUByte
-	"ushort",  // pvUShort
-	"uint",    // pvUInt
-	"ulong",   // pvULong
-	"float",   // pvFloat
-	"double",  // pvDouble
-	"string"   // pvString
-    };
-    return idScalarLUT[scalarType];
-}
-
-const int8 Scalar::getTypeCodeLUT() const
-{
-    static const int8 typeCodeLUT[] = {
-        0x00, // pvBoolean
-        0x20, // pvByte
-        0x21, // pvShort
-        0x22, // pvInt
-        0x23, // pvLong
-        0x28, // pvUByte
-        0x29, // pvUShort
-        0x2A, // pvUInt
-        0x2B, // pvULong
-        0x42, // pvFloat
-        0x43, // pvDouble
-        0x60  // pvString
-    };
-   return typeCodeLUT[scalarType];
-}
-
-
-void Scalar::serialize(ByteBuffer *buffer, SerializableControl *control) const {
-    control->ensureBuffer(1);
-    buffer->putByte(getTypeCodeLUT());
-}
-
-void Scalar::deserialize(ByteBuffer *buffer, DeserializableControl *control) {
-    // must be done via FieldCreate
-    throw std::runtime_error("not valid operation, use FieldCreate::deserialize instead");
-}
-
-static String emptyString;
-
-static void serializeStructureField(const Structure* structure, ByteBuffer* buffer, SerializableControl* control)
-{
-	// to optimize default (non-empty) IDs optimization
-	// empty IDs are not allowed
-	String id = structure->getID();
-	if (id == Structure::DEFAULT_ID)	// TODO slow comparison
-		SerializeHelper::serializeString(emptyString, buffer, control);
-	else
-	    SerializeHelper::serializeString(id, buffer, control);
-
-    FieldConstPtrArray const & fields = structure->getFields();
-    StringArray const & fieldNames = structure->getFieldNames();
-    std::size_t len = fields.size();
-    SerializeHelper::writeSize(len, buffer, control);
-    for (std::size_t i = 0; i < len; i++)
-    {
-        SerializeHelper::serializeString(fieldNames[i], buffer, control);
-        control->cachedSerialize(fields[i], buffer);
-    }
-}
-
-static StructureConstPtr deserializeStructureField(const FieldCreate* fieldCreate, ByteBuffer* buffer, DeserializableControl* control)
-{
-    String id = SerializeHelper::deserializeString(buffer, control);
-    const std::size_t size = SerializeHelper::readSize(buffer, control);
-    FieldConstPtrArray fields; fields.reserve(size);
-    StringArray fieldNames; fieldNames.reserve(size);
-    for (std::size_t i = 0; i < size; i++)
-    {
-        fieldNames.push_back(SerializeHelper::deserializeString(buffer, control));
-        fields.push_back(control->cachedDeserialize(buffer));
-    }
-
-    if (id.empty())
-        return fieldCreate->createStructure(fieldNames, fields);
-    else
-    	return fieldCreate->createStructure(id, fieldNames, fields);
-}
-
-ScalarArray::ScalarArray(ScalarType elementType)
-: Field(scalarArray),elementType(elementType){}
-
-ScalarArray::~ScalarArray() {}
-
-const int8 ScalarArray::getTypeCodeLUT() const
-{
-    static const int8 typeCodeLUT[] = {
-        0x00, // pvBoolean
-        0x20, // pvByte
-        0x21, // pvShort
-        0x22, // pvInt
-        0x23, // pvLong
-        0x28, // pvUByte
-        0x29, // pvUShort
-        0x2A, // pvUInt
-        0x2B, // pvULong
-        0x42, // pvFloat
-        0x43, // pvDouble
-        0x60  // pvString
-    };
-   return typeCodeLUT[elementType];
-}
-
-const String ScalarArray::getIDScalarArrayLUT() const
-{
-    static const String idScalarArrayLUT[] = {
-	"boolean[]", // pvBoolean
-	"byte[]",    // pvByte
-	"short[]",   // pvShort
-	"int[]",     // pvInt
-	"long[]",    // pvLong
-	"ubyte[]",   // pvUByte
-	"ushort[]",  // pvUShort
-	"uint[]",    // pvUInt
-	"ulong[]",   // pvULong
-	"float[]",   // pvFloat
-	"double[]",  // pvDouble
-	"string[]"   // pvString
-    };
-    return idScalarArrayLUT[elementType];
-}
-
-String ScalarArray::getID() const
-{
-    return getIDScalarArrayLUT();
-}
-
-void ScalarArray::toString(StringBuilder buffer,int indentLevel) const{
-    *buffer += getID();
-}
-
-void ScalarArray::serialize(ByteBuffer *buffer, SerializableControl *control) const {
-    control->ensureBuffer(1);
-    buffer->putByte(0x10 | getTypeCodeLUT());
-}
-
-void ScalarArray::deserialize(ByteBuffer *buffer, DeserializableControl *control) {
-    throw std::runtime_error("not valid operation, use FieldCreate::deserialize instead");
-}
-
-StructureArray::StructureArray(StructureConstPtr const & structure)
-: Field(structureArray),pstructure(structure)
-{
-}
-
-StructureArray::~StructureArray() {
-    if(debugLevel==highDebug) printf("~StructureArray\n");
-}
-
-String StructureArray::getID() const
-{
-	return pstructure->getID() + "[]";
-}
-
-void StructureArray::toString(StringBuilder buffer,int indentLevel) const {
-    *buffer +=  getID();
-    newLine(buffer,indentLevel + 1);
-    pstructure->toString(buffer,indentLevel + 1);
-}
-
-void StructureArray::serialize(ByteBuffer *buffer, SerializableControl *control) const {
-    control->ensureBuffer(1);
-    buffer->putByte(0x90);
-    control->cachedSerialize(pstructure, buffer);
-}
-
-void StructureArray::deserialize(ByteBuffer *buffer, DeserializableControl *control) {
-    throw std::runtime_error("not valid operation, use FieldCreate::deserialize instead");
-}
-
-String Structure::DEFAULT_ID = "structure";
-
-Structure::Structure (
-    StringArray const & fieldNames,
-    FieldConstPtrArray const & infields,
-    String const & inid)
-: Field(structure),
-      fieldNames(fieldNames),
-      fields(infields),
-      id(inid)
-{
-    if(inid.empty()) {
-        throw std::invalid_argument("id is empty");
-    }
-    if(fieldNames.size()!=fields.size()) {
-        throw std::invalid_argument("fieldNames.size()!=fields.size()");
-    }
-    size_t number = fields.size();
-    for(size_t i=0; i<number; i++) {
-        String name = fieldNames[i];
-        if(name.size()<1) {
-            throw std::invalid_argument("fieldNames has a zero length string");
-        }
-        // look for duplicates
-        for(size_t j=i+1; j<number; j++) {
-            String otherName = fieldNames[j];
-            int result = name.compare(otherName);
-            if(result==0) {
-                String  message("duplicate fieldName ");
-                message += name;
-                throw std::invalid_argument(message);
-            }
-        }
-    }
-}
-
-Structure::~Structure() { }
-
-
-String Structure::getID() const
-{
-	return id;
-}
-
-FieldConstPtr  Structure::getField(String const & fieldName) const {
-    size_t numberFields = fields.size();
-    for(size_t i=0; i<numberFields; i++) {
-        FieldConstPtr pfield = fields[i];
-        int result = fieldName.compare(fieldNames[i]);
-        if(result==0) return pfield;
-    }
-    return FieldConstPtr();
-}
-
-size_t Structure::getFieldIndex(String const &fieldName) const {
-    size_t numberFields = fields.size();
-    for(size_t i=0; i<numberFields; i++) {
-        FieldConstPtr pfield = fields[i];
-        int result = fieldName.compare(fieldNames[i]);
-        if(result==0) return i;
-    }
-    return -1;
-}
-
-void Structure::toString(StringBuilder buffer,int indentLevel) const{
-    *buffer += getID();
-    toStringCommon(buffer,indentLevel+1);
-}
-    
-void Structure::toStringCommon(StringBuilder buffer,int indentLevel) const{
-    newLine(buffer,indentLevel);
-    size_t numberFields = fields.size();
-    for(size_t i=0; i<numberFields; i++) {
-        FieldConstPtr pfield = fields[i];
-        *buffer += pfield->getID() + " " + fieldNames[i];
-        switch(pfield->getType()) {
-            case scalar:
-            case scalarArray:
-                break;
-            case structure:
-            {
-                Field const *xxx = pfield.get();
-                Structure const *pstruct = static_cast<Structure const*>(xxx);
-                pstruct->toStringCommon(buffer,indentLevel + 1);
-                break;
-            }
-            case structureArray:
-                newLine(buffer,indentLevel +1);
-                pfield->toString(buffer,indentLevel +1);
-                break;
-        }
-        if(i<numberFields-1) newLine(buffer,indentLevel);
-    }
-}
-
-void Structure::serialize(ByteBuffer *buffer, SerializableControl *control) const {
-    control->ensureBuffer(1);
-    buffer->putByte(0x80);
-    serializeStructureField(this, buffer, control);
-}
-
-void Structure::deserialize(ByteBuffer *buffer, DeserializableControl *control) {
-    throw std::runtime_error("not valid operation, use FieldCreate::deserialize instead");
-}
-
-ScalarConstPtr FieldCreate::createScalar(ScalarType scalarType) const
-{
-    // TODO use singleton instance
-    ScalarConstPtr scalar(new Scalar(scalarType), Field::Deleter());
-    return scalar;
-}
- 
-ScalarArrayConstPtr FieldCreate::createScalarArray(ScalarType elementType) const
-{
-    // TODO use singleton instance
-    ScalarArrayConstPtr scalarArray(new ScalarArray(elementType), Field::Deleter());
-    return scalarArray;
-}
-
-StructureConstPtr FieldCreate::createStructure (
-    StringArray const & fieldNames,FieldConstPtrArray const & fields) const
-{
-      StructureConstPtr structure(
-         new Structure(fieldNames,fields), Field::Deleter());
-      return structure;
-}
-
-StructureConstPtr FieldCreate::createStructure (
-    String const & id,
-    StringArray const & fieldNames,
-    FieldConstPtrArray const & fields) const
-{
-      StructureConstPtr structure(
-         new Structure(fieldNames,fields,id), Field::Deleter());
-      return structure;
-}
-
-StructureArrayConstPtr FieldCreate::createStructureArray(
-    StructureConstPtr const & structure) const
-{
-     StructureArrayConstPtr structureArray(
-        new StructureArray(structure), Field::Deleter());
-     return structureArray;
-}
-
-StructureConstPtr FieldCreate::appendField(
-    StructureConstPtr const & structure,
-    String const & fieldName,
-    FieldConstPtr const & field) const
-{
-    StringArray oldNames = structure->getFieldNames();
-    FieldConstPtrArray oldFields = structure->getFields();
-    size_t oldLen = oldNames.size();
-    StringArray newNames(oldLen+1);
-    FieldConstPtrArray newFields(oldLen+1);
-    for(size_t i = 0; i<oldLen; i++) {
-        newNames[i] = oldNames[i];
-        newFields[i] = oldFields[i];
-    }
-    newNames[oldLen] = fieldName;
-    newFields[oldLen] = field;
-    return createStructure(structure->getID(),newNames,newFields);
-}
-
-StructureConstPtr FieldCreate::appendFields(
-    StructureConstPtr const & structure,
-    StringArray const & fieldNames,
-    FieldConstPtrArray const & fields) const
-{
-    StringArray oldNames = structure->getFieldNames();
-    FieldConstPtrArray oldFields = structure->getFields();
-    size_t oldLen = oldNames.size();
-    size_t extra = fieldNames.size();
-    StringArray newNames(oldLen+extra);
-    FieldConstPtrArray newFields(oldLen+extra);
-    for(size_t i = 0; i<oldLen; i++) {
-        newNames[i] = oldNames[i];
-        newFields[i] = oldFields[i];
-    }
-    for(size_t i = 0; i<extra; i++) {
-        newNames[oldLen +i] = fieldNames[i];
-        newFields[oldLen +i] = fields[i];
-    }
-    return createStructure(structure->getID(),newNames,newFields);
-}
-
-
-static int decodeScalar(int8 code)
-{
-    static const int integerLUT[] =
-    {
-        pvByte,  // 8-bits
-        pvShort, // 16-bits
-        pvInt,   // 32-bits
-        pvLong,  // 64-bits
-        -1,
-        -1,
-        -1,
-        -1,
-        pvUByte,  // unsigned 8-bits
-        pvUShort, // unsigned 16-bits
-        pvUInt,   // unsigned 32-bits
-        pvULong,  // unsigned 64-bits
-        -1,
-        -1,
-        -1,
-        -1
-    };
-    
-    static const int floatLUT[] =
-    {
-        -1, // reserved
-        -1, // 16-bits
-        pvFloat,   // 32-bits
-        pvDouble,  // 64-bits
-        -1,
-        -1,
-        -1,
-        -1,
-        -1,
-        -1,
-        -1,
-        -1,
-        -1,
-        -1,
-        -1,
-        -1
-    };
-    // bits 7-5
-    switch (code >> 5)
-    {
-    case 0: return pvBoolean;
-    case 1: return integerLUT[code & 0x0F];
-    case 2: return floatLUT[code & 0x0F];
-    case 3: return pvString;
-    default: return -1;
-    }
-}
-
-FieldConstPtr FieldCreate::deserialize(ByteBuffer* buffer, DeserializableControl* control) const
-{
-    control->ensureData(1);
-    int8 code = buffer->getByte();
-    if (code == -1)
-        return FieldConstPtr();
-
-    int typeCode = code & 0xE0;
-    bool notArray = ((code & 0x10) == 0);
-    if (notArray)
-    {
-        if (typeCode < 0x80)
-        {
-            // Type type = Type.scalar;
-            int scalarType = decodeScalar(code);
-            if (scalarType == -1)
-                throw std::invalid_argument("invalid scalar type encoding");
-            return FieldConstPtr(new Scalar(static_cast<ScalarType>(scalarType)), Field::Deleter());
-        }
-        else if (typeCode == 0x80)
-        {
-            // Type type = Type.structure;
-            return deserializeStructureField(this, buffer, control);
-        }
-        else
-            throw std::invalid_argument("invalid type encoding");
-    }
-    else // array
-    {
-        if (typeCode < 0x80)
-        {
-            // Type type = Type.scalarArray;
-            int scalarType = decodeScalar(code);
-            if (scalarType == -1)
-                throw std::invalid_argument("invalid scalarArray type encoding");
-            return FieldConstPtr(new ScalarArray(static_cast<ScalarType>(scalarType)), Field::Deleter());
-        }
-        else if (typeCode == 0x80)
-        {
-            // Type type = Type.structureArray;
-            StructureConstPtr elementStructure = std::tr1::static_pointer_cast<const Structure>(control->cachedDeserialize(buffer));
-            return FieldConstPtr(new StructureArray(elementStructure), Field::Deleter());
-        }
-        else
-            throw std::invalid_argument("invalid type encoding");
-    }
-}
-
-FieldCreatePtr FieldCreate::getFieldCreate()
-{
-	LOCAL_STATIC_LOCK;
-	static FieldCreatePtr fieldCreate;
-	static Mutex mutex;
-
-	Lock xx(mutex);
-    if(fieldCreate.get()==0) fieldCreate = FieldCreatePtr(new FieldCreate());
-    return fieldCreate;
-}
-
-FieldCreate::FieldCreate(){}
-
-FieldCreatePtr getFieldCreate() {
-    return FieldCreate::getFieldCreate();
-}
-
-}}

pvDataApp/factory/PVArray.cpp

@@ -1,100 +0,0 @@
-/*PVArray.cpp*/
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
- */
-/**
- *  @author mrk
- */
-
-#include <cstddef>
-#include <cstdlib>
-#include <string>
-#include <cstdio>
-#include <pv/pvData.h>
-#include <pv/factory.h>
-
-using std::size_t;
-
-namespace epics { namespace pvData {
-
-class PVArrayPvt {
-public:
-    PVArrayPvt() : length(0),capacity(0),capacityMutable(true)
-    {}
-    size_t length;
-    size_t capacity;
-    bool capacityMutable;
-};
-
-PVArray::PVArray(FieldConstPtr const & field)
-: PVField(field),pImpl(new PVArrayPvt())
-{ }
-
-PVArray::~PVArray()
-{
-    delete pImpl;
-}
-
- void PVArray::setImmutable()
- {
-     pImpl->capacityMutable = false;
-     PVField::setImmutable();
- } 
-
- size_t PVArray::getLength() const {return pImpl->length;}
-
- size_t PVArray::getCapacity() const {return pImpl->capacity;}
-
- static String fieldImmutable("field is immutable");
-
- void PVArray::setLength(size_t length) {
-    if(length==pImpl->length) return;
-    if(PVField::isImmutable()) {
-       PVField::message(fieldImmutable,errorMessage);
-       return;
-    }
-    if(length>pImpl->capacity) this->setCapacity(length);
-    if(length>pImpl->capacity) length = pImpl->capacity;
-    pImpl->length = length;
- }
-
- void PVArray::setCapacityLength(size_t capacity,size_t length) {
-    pImpl->capacity = capacity;
-    pImpl->length = length;
- }
-
-
- bool PVArray::isCapacityMutable() const
- {
-      if(PVField::isImmutable()) {
-          return false;
-      }
-      return pImpl->capacityMutable;
- }
-
- void PVArray::setCapacityMutable(bool isMutable)
- {
-    if(isMutable && PVField::isImmutable()) {
-       PVField::message(fieldImmutable,errorMessage);
-       return;
-    }
-    pImpl->capacityMutable = isMutable;
- }
-
- static String capacityImmutable("capacity is immutable");
-
- void PVArray::setCapacity(size_t capacity) {
-    if(PVField::isImmutable()) {
-       PVField::message(fieldImmutable,errorMessage);
-       return;
-    }
-    if(pImpl->capacityMutable==false) {
-       PVField::message(capacityImmutable,errorMessage);
-       return;
-    }
-    pImpl->capacity = capacity;
- }
-
-}}

pvDataApp/factory/PVAuxInfoImpl.cpp

@@ -1,84 +0,0 @@
-/*PVAuxInfo.cpp*/
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
- */
-/**
- *  @author mrk
- */
-#include <cstddef>
-#include <cstdlib>
-#include <string>
-#include <cstdio>
-#include <pv/noDefaultMethods.h>
-#include <pv/pvData.h>
-#include <pv/convert.h>
-#include <pv/factory.h>
-#include <pv/lock.h>
-
-namespace epics { namespace pvData {
-
-
-PVAuxInfo::PVAuxInfo(PVField * pvField)
-  :  pvField(pvField),
-     pvInfos(std::map<String,std::tr1::shared_ptr<PVScalar> > ())
-{
-} 
-
-PVAuxInfo::~PVAuxInfo()
-{
-}
-
-
-PVField * PVAuxInfo::getPVField() {
-    return pvField;
-}
-
-
-PVScalarPtr PVAuxInfo::createInfo(String const & key,ScalarType scalarType)
-{
-    PVInfoIter iter = pvInfos.find(key);
-    if(iter!=pvInfos.end()) {
-        String message = key.c_str();
-        message += " already exists  ";
-        pvField->message(message,errorMessage);
-        return nullPVScalar;
-    }
-    PVScalarPtr pvScalar = getPVDataCreate()->createPVScalar(scalarType);
-    pvInfos.insert(PVInfoPair(key,pvScalar));
-    return pvScalar;
-}
-
-PVScalarPtr  PVAuxInfo::getInfo(String const & key)
-{
-    PVInfoIter iter;
-    iter = pvInfos.find(key);
-    if(iter==pvInfos.end()) return nullPVScalar;
-    return iter->second;
-}
-
-PVAuxInfo::PVInfoMap & PVAuxInfo::getInfoMap()
-{
-    return pvInfos;
-}
-
-
-void PVAuxInfo::toString(StringBuilder buf)
-{
-    PVAuxInfo::toString(buf,0);
-}
-
-void PVAuxInfo::toString(StringBuilder buf,int indentLevel)
-{
-    if(pvInfos.size()<=0) return;
-    ConvertPtr convert = getConvert();
-    convert->newLine(buf,indentLevel);
-    *buf += "auxInfo";
-    for(PVInfoIter iter = pvInfos.begin(); iter!= pvInfos.end(); ++iter) {
-         convert->newLine(buf,indentLevel+1);
-         PVFieldPtr value = iter->second;
-         value->toString(buf,indentLevel + 1);
-    }
-}
-}}

pvDataApp/factory/PVStructure.cpp

@@ -1,705 +0,0 @@
-/*PVStructure.cpp*/
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
- */
-/**
- *  @author mrk
- */
-#include <cstddef>
-#include <cstdlib>
-#include <string>
-#include <cstdio>
-#include <vector>
-#include <pv/pvData.h>
-#include <pv/pvIntrospect.h>
-#include <pv/convert.h>
-#include <pv/factory.h>
-#include <pv/bitSet.h>
-
-using std::tr1::static_pointer_cast;
-using std::size_t;
-
-namespace epics { namespace pvData {
-
-PVFieldPtr PVStructure::nullPVField;
-PVBooleanPtr PVStructure::nullPVBoolean;
-PVBytePtr PVStructure::nullPVByte;
-PVShortPtr PVStructure::nullPVShort;
-PVIntPtr PVStructure::nullPVInt;
-PVLongPtr PVStructure::nullPVLong;
-PVUBytePtr PVStructure::nullPVUByte;
-PVUShortPtr PVStructure::nullPVUShort;
-PVUIntPtr PVStructure::nullPVUInt;
-PVULongPtr PVStructure::nullPVULong;
-PVFloatPtr PVStructure::nullPVFloat;
-PVDoublePtr PVStructure::nullPVDouble;
-PVStringPtr PVStructure::nullPVString;
-PVStructurePtr PVStructure::nullPVStructure;
-PVStructureArrayPtr PVStructure::nullPVStructureArray;
-PVScalarArrayPtr PVStructure::nullPVScalarArray;
-
-static PVFieldPtr findSubField(
-    String const &fieldName,
-    const PVStructure *pvStructure);
-
-PVStructure::PVStructure(StructureConstPtr const & structurePtr)
-: PVField(structurePtr),
-  structurePtr(structurePtr),
-  extendsStructureName("")
-{
-    size_t numberFields = structurePtr->getNumberFields();
-    FieldConstPtrArray fields = structurePtr->getFields();
-    StringArray fieldNames = structurePtr->getFieldNames();
-//    PVFieldPtrArray * xxx = const_cast<PVFieldPtrArray *>(&pvFields);
-    pvFields.reserve(numberFields);
-    PVDataCreatePtr pvDataCreate = getPVDataCreate();
-    for(size_t i=0; i<numberFields; i++) {
-    	pvFields.push_back(pvDataCreate->createPVField(fields[i]));
-    }
-    for(size_t i=0; i<numberFields; i++) {
-    	pvFields[i]->setParentAndName(this,fieldNames[i]);
-    }
-}
-
-PVStructure::PVStructure(StructureConstPtr const & structurePtr,
-    PVFieldPtrArray const & pvs
-)
-: PVField(structurePtr),
-  structurePtr(structurePtr),
-  extendsStructureName("")
-{
-    size_t numberFields = structurePtr->getNumberFields();
-    StringArray fieldNames = structurePtr->getFieldNames();
-    pvFields.reserve(numberFields);
-    for(size_t i=0; i<numberFields; i++) {
-        pvFields.push_back(pvs[i]);
-    }
-    for(size_t i=0; i<numberFields; i++) {
-        pvFields[i]->setParentAndName(this,fieldNames[i]);
-    }
-}
-
-PVStructure::~PVStructure()
-{
-}
-
-void PVStructure::setImmutable()
-{
-    size_t numFields = pvFields.size();
-    for(size_t i=0; i<numFields; i++) {
-        PVFieldPtr pvField  = pvFields[i];
-        pvField->setImmutable();
-    }
-    PVField::setImmutable();
-}
-
-StructureConstPtr PVStructure::getStructure() const
-{
-    return structurePtr;
-}
-
-const PVFieldPtrArray & PVStructure::getPVFields() const
-{
-    return pvFields;
-}
-
-PVFieldPtr  PVStructure::getSubField(String const &fieldName) const
-{
-    return findSubField(fieldName,this);
-}
-
-
-PVFieldPtr  PVStructure::getSubField(size_t fieldOffset) const
-{
-    if(fieldOffset<=getFieldOffset()) {
-        return nullPVField;
-    }
-    if(fieldOffset>getNextFieldOffset()) return nullPVField;
-    size_t numFields = pvFields.size();
-    for(size_t i=0; i<numFields; i++) {
-        PVFieldPtr pvField  = pvFields[i];
-        if(pvField->getFieldOffset()==fieldOffset) return pvFields[i];
-        if(pvField->getNextFieldOffset()<=fieldOffset) continue;
-        if(pvField->getField()->getType()==structure) {
-            PVStructure *pvStructure = static_cast<PVStructure *>(pvField.get());
-            return pvStructure->getSubField(fieldOffset);
-        }
-    }
-    throw std::logic_error("PVStructure.getSubField: Logic error");
-}
-
-void PVStructure::fixParentStructure()
-{
-    PVStructure *parent = getParent();
-    if(parent==NULL) return;
-    StructureConstPtr parentStructure = parent->structurePtr;
-    String fieldName = getFieldName();
-    size_t index = parentStructure->getFieldIndex(fieldName);
-    StringArray const &fieldNames = parentStructure->getFieldNames();
-    size_t num = fieldNames.size();
-    FieldConstPtrArray fields(num);
-    FieldConstPtrArray const & oldFields = parentStructure->getFields();
-    for(size_t i=0; i< num; i++) {
-        if(i==index) {
-            fields[i] = structurePtr;
-        } else {
-            fields[i] = oldFields[i];
-        }
-    }
-    FieldConstPtr field = getFieldCreate()->createStructure(
-        parentStructure->getID(),fieldNames,fields);
-    parent->replaceField(field);
-    parent->fixParentStructure();
-}
-
-void PVStructure::appendPVField(
-    String const &fieldName,
-    PVFieldPtr const & pvField)
-{
-    size_t origLength = pvFields.size();
-    size_t newLength = origLength+1;
-    PVFieldPtrArray * xxx = const_cast<PVFieldPtrArray *>(&pvFields);
-    xxx->push_back(pvField);
-    FieldConstPtr field = getFieldCreate()->appendField(
-        structurePtr,fieldName,pvField->getField());
-    replaceField(field);
-    structurePtr = static_pointer_cast<const Structure>(field);
-    StringArray fieldNames = structurePtr->getFieldNames();
-    for(size_t i=0; i<newLength; i++) {
-        pvFields[i]->setParentAndName(this,fieldNames[i]);
-    }
-    fixParentStructure();
-}
-
-void PVStructure::appendPVFields(
-    StringArray const & fieldNames,
-    PVFieldPtrArray const & pvFields)
-{
-    size_t origLength = this->pvFields.size();
-    size_t extra = fieldNames.size();
-    if(extra==0) return;
-    size_t newLength = origLength + extra;
-    PVFieldPtrArray * xxx = const_cast<PVFieldPtrArray *>(&this->pvFields);
-    xxx->reserve(newLength);
-    for(size_t i=0; i<extra; i++) {
-        xxx->push_back(pvFields[i]);
-    }
-    FieldConstPtrArray fields;
-    fields.reserve(extra);
-    for(size_t i=0; i<extra; i++) fields.push_back(pvFields[i]->getField());
-    FieldConstPtr field = getFieldCreate()->appendFields(
-        structurePtr,fieldNames,fields);
-    replaceField(field);
-    structurePtr = static_pointer_cast<const Structure>(field);
-    StringArray names = structurePtr->getFieldNames();
-    for(size_t i=0; i<newLength; i++) {
-        (*xxx)[i]->setParentAndName(this,names[i]);
-    }
-    fixParentStructure();
-}
-
-void PVStructure::removePVField(String const &fieldName)
-{
-    PVFieldPtr pvField = getSubField(fieldName);
-    if(pvField.get()==NULL) {
-        String message("removePVField ");
-        message +=  fieldName + " does not exist";
-        this->message(message, errorMessage);
-        return;
-    }
-    size_t origLength = pvFields.size();
-    size_t newLength = origLength - 1;
-    PVFieldPtrArray const & origPVFields = pvFields;
-    FieldConstPtrArray origFields = structurePtr->getFields();
-    PVFieldPtrArray newPVFields;
-    newPVFields.reserve(newLength);
-    StringArray newFieldNames;
-    newFieldNames.reserve(newLength);
-    FieldConstPtrArray fields;
-    fields.reserve(newLength);
-    for(size_t i=0; i<origLength; i++) {
-        if(origPVFields[i]!=pvField) {
-            newFieldNames.push_back(origPVFields[i]->getFieldName());
-            newPVFields.push_back(origPVFields[i]);
-            fields.push_back(origFields[i]);
-        }
-    }
-    PVFieldPtrArray * xxx = const_cast<PVFieldPtrArray *>(&pvFields);
-    xxx->swap(newPVFields);
-    FieldConstPtr field = getFieldCreate()->createStructure(
-        structurePtr->getID(),newFieldNames,fields);
-    replaceField(field);
-    structurePtr = static_pointer_cast<const Structure>(field);
-    StringArray fieldNames = structurePtr->getFieldNames();
-    for(size_t i=0; i<newLength; i++) {
-        pvFields[i]->setParentAndName(this,fieldNames[i]);
-    }
-}
-
-PVBooleanPtr PVStructure::getBooleanField(String const &fieldName)
-{
-    PVFieldPtr pvField = findSubField(fieldName,this);
-    if(pvField.get()==NULL) {
-        String message("fieldName ");
-        message +=  fieldName + " does not exist";
-        this->message(message, errorMessage);
-        return nullPVBoolean;
-    }
-    if(pvField->getField()->getType()==scalar) {
-        ScalarConstPtr pscalar = static_pointer_cast<const Scalar>(
-            pvField->getField());
-        if(pscalar->getScalarType()==pvBoolean) {
-            return std::tr1::static_pointer_cast<PVBoolean>(pvField);
-        }
-    }
-    String message("fieldName ");
-    message +=  fieldName + " does not have type boolean ";
-    this->message(message, errorMessage);
-    return nullPVBoolean;
-}
-
-PVBytePtr PVStructure::getByteField(String const &fieldName)
-{
-    PVFieldPtr pvField = findSubField(fieldName,this);
-    if(pvField.get()==NULL) {
-        String message("fieldName ");
-        message +=  fieldName + " does not exist";
-        this->message(message, errorMessage);
-        return nullPVByte;
-    }
-    if(pvField->getField()->getType()==scalar) {
-        ScalarConstPtr pscalar = static_pointer_cast<const Scalar>(
-            pvField->getField());
-        if(pscalar->getScalarType()==pvByte) {
-            return std::tr1::static_pointer_cast<PVByte>(pvField);
-        }
-    }
-    String message("fieldName ");
-    message +=  fieldName + " does not have type byte ";
-    this->message(message, errorMessage);
-    return nullPVByte;
-}
-
-PVShortPtr PVStructure::getShortField(String const &fieldName)
-{
-    PVFieldPtr pvField  = findSubField(fieldName,this);
-    if(pvField.get()==NULL) {
-        String message("fieldName ");
-        message +=  fieldName + " does not exist";
-        this->message(message, errorMessage);
-        return nullPVShort;
-    }
-    if(pvField->getField()->getType()==scalar) {
-        ScalarConstPtr pscalar = static_pointer_cast<const Scalar>(
-            pvField->getField());
-        if(pscalar->getScalarType()==pvShort) {
-            return std::tr1::static_pointer_cast<PVShort>(pvField);
-        }
-    }
-    String message("fieldName ");
-    message +=  fieldName + " does not have type short ";
-    this->message(message, errorMessage);
-    return nullPVShort;
-}
-
-PVIntPtr PVStructure::getIntField(String const &fieldName)
-{
-    PVFieldPtr pvField  = findSubField(fieldName,this);
-    if(pvField.get()==NULL) {
-        String message("fieldName ");
-        message +=  fieldName + " does not exist";
-        this->message(message, errorMessage);
-        return nullPVInt;
-    }
-    if(pvField->getField()->getType()==scalar) {
-        ScalarConstPtr pscalar = static_pointer_cast<const Scalar>(
-            pvField->getField());
-        if(pscalar->getScalarType()==pvInt) {
-            return std::tr1::static_pointer_cast<PVInt>(pvField);
-        }
-    }
-    String message("fieldName ");
-    message +=  fieldName + " does not have type int ";
-    this->message(message, errorMessage);
-    return nullPVInt;
-}
-
-PVLongPtr PVStructure::getLongField(String const &fieldName)
-{
-    PVFieldPtr pvField  = findSubField(fieldName,this);
-    if(pvField.get()==NULL) {
-        String message("fieldName ");
-        message +=  fieldName + " does not exist";
-        this->message(message, errorMessage);
-        return nullPVLong;
-    }
-    if(pvField->getField()->getType()==scalar) {
-        ScalarConstPtr pscalar = static_pointer_cast<const Scalar>(
-            pvField->getField());
-        if(pscalar->getScalarType()==pvLong) {
-            return std::tr1::static_pointer_cast<PVLong>(pvField);
-        }
-    }
-    String message("fieldName ");
-    message +=  fieldName + " does not have type long ";
-    this->message(message, errorMessage);
-    return nullPVLong;
-}
-
-PVUBytePtr PVStructure::getUByteField(String const &fieldName)
-{
-    PVFieldPtr pvField  = findSubField(fieldName,this);
-    if(pvField.get()==NULL) {
-        String message("fieldName ");
-        message +=  fieldName + " does not exist";
-        this->message(message, errorMessage);
-        return nullPVUByte;
-    }
-    if(pvField->getField()->getType()==scalar) {
-        ScalarConstPtr pscalar = static_pointer_cast<const Scalar>(
-            pvField->getField());
-        if(pscalar->getScalarType()==pvUByte) {
-            return std::tr1::static_pointer_cast<PVUByte>(pvField);
-        }
-    }
-    String message("fieldName ");
-    message +=  fieldName + " does not have type byte ";
-    this->message(message, errorMessage);
-    return nullPVUByte;
-}
-
-PVUShortPtr PVStructure::getUShortField(String const &fieldName)
-{
-    PVFieldPtr pvField  = findSubField(fieldName,this);
-    if(pvField.get()==NULL) {
-        String message("fieldName ");
-        message +=  fieldName + " does not exist";
-        this->message(message, errorMessage);
-        return nullPVUShort;
-    }
-    if(pvField->getField()->getType()==scalar) {
-        ScalarConstPtr pscalar = static_pointer_cast<const Scalar>(
-            pvField->getField());
-        if(pscalar->getScalarType()==pvUShort) {
-            return std::tr1::static_pointer_cast<PVUShort>(pvField);
-        }
-    }
-    String message("fieldName ");
-    message +=  fieldName + " does not have type short ";
-    this->message(message, errorMessage);
-    return nullPVUShort;
-}
-
-PVUIntPtr PVStructure::getUIntField(String const &fieldName)
-{
-    PVFieldPtr pvField  = findSubField(fieldName,this);
-    if(pvField.get()==NULL) {
-        String message("fieldName ");
-        message +=  fieldName + " does not exist";
-        this->message(message, errorMessage);
-        return nullPVUInt;
-    }
-    if(pvField->getField()->getType()==scalar) {
-        ScalarConstPtr pscalar = static_pointer_cast<const Scalar>(
-            pvField->getField());
-        if(pscalar->getScalarType()==pvUInt) {
-            return std::tr1::static_pointer_cast<PVUInt>(pvField);
-        }
-    }
-    String message("fieldName ");
-    message +=  fieldName + " does not have type int ";
-    this->message(message, errorMessage);
-    return nullPVUInt;
-}
-
-PVULongPtr PVStructure::getULongField(String const &fieldName)
-{
-    PVFieldPtr pvField  = findSubField(fieldName,this);
-    if(pvField.get()==NULL) {
-        String message("fieldName ");
-        message +=  fieldName + " does not exist";
-        this->message(message, errorMessage);
-        return nullPVULong;
-    }
-    if(pvField->getField()->getType()==scalar) {
-        ScalarConstPtr pscalar = static_pointer_cast<const Scalar>(
-            pvField->getField());
-        if(pscalar->getScalarType()==pvULong) {
-            return std::tr1::static_pointer_cast<PVULong>(pvField);
-        }
-    }
-    String message("fieldName ");
-    message +=  fieldName + " does not have type long ";
-    this->message(message, errorMessage);
-    return nullPVULong;
-}
-
-PVFloatPtr PVStructure::getFloatField(String const &fieldName)
-{
-    PVFieldPtr pvField  = findSubField(fieldName,this);
-    if(pvField.get()==NULL) {
-        String message("fieldName ");
-        message +=  fieldName + " does not exist";
-        this->message(message, errorMessage);
-        return nullPVFloat;
-    }
-    if(pvField->getField()->getType()==scalar) {
-        ScalarConstPtr pscalar = static_pointer_cast<const Scalar>(
-            pvField->getField());
-        if(pscalar->getScalarType()==pvFloat) {
-            return std::tr1::static_pointer_cast<PVFloat>(pvField);
-        }
-    }
-    String message("fieldName ");
-    message +=  fieldName + " does not have type float ";
-    this->message(message, errorMessage);
-    return nullPVFloat;
-}
-
-PVDoublePtr PVStructure::getDoubleField(String const &fieldName)
-{
-    PVFieldPtr pvField  = findSubField(fieldName,this);
-    if(pvField.get()==NULL) {
-        String message("fieldName ");
-        message +=  fieldName + " does not exist";
-        this->message(message, errorMessage);
-        return nullPVDouble;
-    }
-    if(pvField->getField()->getType()==scalar) {
-        ScalarConstPtr pscalar = static_pointer_cast<const Scalar>(
-            pvField->getField());
-        if(pscalar->getScalarType()==pvDouble) {
-            return std::tr1::static_pointer_cast<PVDouble>(pvField);
-        }
-    }
-    String message("fieldName ");
-    message +=  fieldName + " does not have type double ";
-    this->message(message, errorMessage);
-    return nullPVDouble;
-}
-
-PVStringPtr PVStructure::getStringField(String const &fieldName)
-{
-    PVFieldPtr pvField  = findSubField(fieldName,this);
-    if(pvField.get()==NULL) {
-        String message("fieldName ");
-        message +=  fieldName + " does not exist";
-        this->message(message, errorMessage);
-        return nullPVString;
-    }
-    if(pvField->getField()->getType()==scalar) {
-        ScalarConstPtr pscalar = static_pointer_cast<const Scalar>(
-            pvField->getField());
-        if(pscalar->getScalarType()==pvString) {
-            return std::tr1::static_pointer_cast<PVString>(pvField);
-        }
-    }
-    String message("fieldName ");
-    message +=  fieldName + " does not have type string ";
-    this->message(message, errorMessage);
-    return nullPVString;
-}
-
-PVStructurePtr PVStructure::getStructureField(String const &fieldName)
-{
-    PVFieldPtr pvField  = findSubField(fieldName,this);
-    if(pvField.get()==NULL) {
-        String message("fieldName ");
-        message +=  fieldName + " does not exist";
-        this->message(message, errorMessage);
-        return nullPVStructure;
-    }
-    if(pvField->getField()->getType()==structure) {
-        return std::tr1::static_pointer_cast<PVStructure>(pvField);
-    }
-    String message("fieldName ");
-    message +=  fieldName + " does not have type structure ";
-    this->message(message, errorMessage);
-    return nullPVStructure;
-}
-
-PVScalarArrayPtr PVStructure::getScalarArrayField(
-    String const &fieldName,ScalarType elementType)
-{
-    PVFieldPtr pvField  = findSubField(fieldName,this);
-    if(pvField.get()==NULL) {
-        String message("fieldName ");
-        message +=  fieldName + " does not exist";
-        this->message(message, errorMessage);
-        return nullPVScalarArray;
-    }
-    FieldConstPtr field = pvField->getField();
-    Type type = field->getType();
-    if(type!=scalarArray) {
-        String message("fieldName ");
-        message +=  fieldName + " does not have type array ";
-        this->message(message, errorMessage);
-        return nullPVScalarArray;
-    }
-    ScalarArrayConstPtr pscalarArray
-        = static_pointer_cast<const ScalarArray>(pvField->getField());
-    if(pscalarArray->getElementType()!=elementType) {
-        String message("fieldName ");
-        message +=  fieldName + " is array but does not have elementType ";
-        ScalarTypeFunc::toString(&message,elementType);
-        this->message(message, errorMessage);
-        return nullPVScalarArray;
-    }
-    return std::tr1::static_pointer_cast<PVScalarArray>(pvField);
-}
-
-PVStructureArrayPtr PVStructure::getStructureArrayField(
-    String const &fieldName)
-{
-    PVFieldPtr pvField  = findSubField(fieldName,this);
-    if(pvField.get()==NULL) {
-        String message("fieldName ");
-        message +=  fieldName + " does not exist";
-        this->message(message, errorMessage);
-        return nullPVStructureArray;
-    }
-    if(pvField->getField()->getType()==structureArray) {
-        return std::tr1::static_pointer_cast<PVStructureArray>(pvField);
-    }
-    String message("fieldName ");
-    message +=  fieldName + " does not have type structureArray ";
-    this->message(message, errorMessage);
-    return nullPVStructureArray;
-}
-
-String PVStructure::getExtendsStructureName() const
-{
-    return extendsStructureName;
-}
-
-bool PVStructure::putExtendsStructureName(
-    String const &xxx)
-{
-    if(extendsStructureName.length()!=0) return false;
-    extendsStructureName = xxx;
-    return true;
-}
-
-void PVStructure::serialize(ByteBuffer *pbuffer,
-        SerializableControl *pflusher) const {
-    size_t fieldsSize = pvFields.size();
-    for(size_t i = 0; i<fieldsSize; i++)
-        pvFields[i]->serialize(pbuffer, pflusher);
-}
-
-void PVStructure::deserialize(ByteBuffer *pbuffer,
-        DeserializableControl *pcontrol) {
-    size_t fieldsSize = pvFields.size();
-    for(size_t i = 0; i<fieldsSize; i++)
-        pvFields[i]->deserialize(pbuffer, pcontrol);
-
-}
-
-void PVStructure::serialize(ByteBuffer *pbuffer,
-        SerializableControl *pflusher, BitSet *pbitSet) const {
-	PVStructure* nonConstThis = const_cast<PVStructure*>(this);
-    size_t numberFields = nonConstThis->getNumberFields();
-    size_t offset = nonConstThis->getFieldOffset();
-    int32 next = pbitSet->nextSetBit(offset);
-
-    // no more changes or no changes in this structure
-    if(next<0||next>=static_cast<int32>(offset+numberFields)) return;
-
-    // entire structure
-    if(static_cast<int32>(offset)==next) {
-        serialize(pbuffer, pflusher);
-        return;
-    }
-
-    size_t fieldsSize = pvFields.size();
-    for(size_t i = 0; i<fieldsSize; i++) {
-        PVFieldPtr pvField = pvFields[i];
-        offset = pvField->getFieldOffset();
-        int32 inumberFields = pvField->getNumberFields();
-        next = pbitSet->nextSetBit(offset);
-
-        // no more changes
-        if(next<0) return;
-        //  no change in this pvField
-        if(next>=static_cast<int32>(offset+inumberFields)) continue;
-
-        // serialize field or fields
-        if(inumberFields==1) {
-            pvField->serialize(pbuffer, pflusher);
-        } else {
-            PVStructurePtr pvStructure = std::tr1::static_pointer_cast<PVStructure>(pvField);
-            pvStructure->serialize(pbuffer, pflusher, pbitSet);
-       }
-    }
-}
-
-void PVStructure::deserialize(ByteBuffer *pbuffer,
-        DeserializableControl *pcontrol, BitSet *pbitSet) {
-    size_t offset = getFieldOffset();
-    size_t numberFields = getNumberFields();
-    int32 next = pbitSet->nextSetBit(offset);
-
-    // no more changes or no changes in this structure
-    if(next<0||next>=static_cast<int32>(offset+numberFields)) return;
-
-    // entire structure
-    if(static_cast<int32>(offset)==next) {
-        deserialize(pbuffer, pcontrol);
-        return;
-    }
-
-    size_t fieldsSize = pvFields.size();
-    for(size_t i = 0; i<fieldsSize; i++) {
-        PVFieldPtr pvField = pvFields[i];
-        offset = pvField->getFieldOffset();
-        int32 inumberFields = pvField->getNumberFields();
-        next = pbitSet->nextSetBit(offset);
-        // no more changes
-        if(next<0) return;
-        //  no change in this pvField
-        if(next>=static_cast<int32>(offset+inumberFields)) continue;
-
-        // deserialize field or fields
-        if(inumberFields==1) {
-            pvField->deserialize(pbuffer, pcontrol);
-        } else {
-            PVStructurePtr pvStructure = std::tr1::static_pointer_cast<PVStructure>(pvField);
-            pvStructure->deserialize(pbuffer, pcontrol, pbitSet);
-        }
-    }
-}
-
-static PVFieldPtr findSubField(
-    String const & fieldName,
-    PVStructure const *pvStructure)
-{
-    if( fieldName.length()<1) return PVFieldPtr();
-    String::size_type index = fieldName.find('.');
-    String name = fieldName;
-    String restOfName = String();
-    if(index>0) {
-        name = fieldName.substr(0, index);
-        if(fieldName.length()>index) {
-            restOfName = fieldName.substr(index+1);
-        }
-    }
-    PVFieldPtrArray  pvFields = pvStructure->getPVFields();
-    PVFieldPtr pvField;
-    size_t numFields = pvStructure->getStructure()->getNumberFields();
-    for(size_t i=0; i<numFields; i++) {
-        pvField = pvFields[i];
-        size_t result = pvField->getFieldName().compare(name);
-        if(result==0) {
-            if(restOfName.length()==0) return pvFields[i];
-            if(pvField->getField()->getType()!=structure) return PVFieldPtr();
-            PVStructurePtr pvStructure =
-                std::tr1::static_pointer_cast<PVStructure>(pvField);
-            return findSubField(restOfName,pvStructure.get());
-        }
-    }
-    return PVFieldPtr();
-}
-
-}}

pvDataApp/factory/PVStructureArray.cpp

@@ -1,253 +0,0 @@
-/*PVStructureArray.cpp*/
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
- */
-/**
- *  @author mrk
- */
-#include <cstddef>
-#include <cstdlib>
-#include <string>
-#include <cstdio>
-#include <pv/pvData.h>
-#include <pv/convert.h>
-#include <pv/factory.h>
-#include <pv/serializeHelper.h>
-
-using std::tr1::static_pointer_cast;
-using std::size_t;
-
-namespace epics { namespace pvData {
-
-PVStructureArray::PVStructureArray(StructureArrayConstPtr const & structureArray)
-: PVArray(structureArray),
-  structureArray(structureArray),
-  value(std::tr1::shared_ptr<PVStructurePtrArray>(new PVStructurePtrArray()))
-{
-}
-
-size_t PVStructureArray::append(size_t number)
-{
-    size_t currentLength = getLength();
-    size_t newLength = currentLength + number;
-    setCapacity(newLength);
-    setLength(newLength);
-    StructureConstPtr structure = structureArray->getStructure();
-    PVStructurePtrArray *to = value.get();
-    for(size_t i=currentLength; i<newLength; i++) {
-        (*to)[i] =getPVDataCreate()->createPVStructure(structure);
-    }
-    return newLength;
-}
-
-bool PVStructureArray::remove(size_t offset,size_t number)
-{
-    size_t length = getLength();
-    if(offset+number>length) return false;
-    PVStructurePtrArray vec = *value.get();
-    for(size_t i = offset; i+number < length; i++) {
-         vec[i] =  vec[i + number];
-    }
-    size_t newLength = length - number;
-    setCapacityLength(newLength,newLength);
-    return true;
-}
-
-void PVStructureArray::compress() {
-    size_t length = getCapacity();
-    size_t newLength = 0;
-    PVStructurePtrArray vec = *value.get();
-    for(size_t i=0; i<length; i++) {
-        if(vec[i].get()!=NULL) {
-            newLength++;
-            continue;
-        }
-        // find first non 0
-        size_t notNull = 0;
-        for(size_t j=i+1;j<length;j++) {
-            if(vec[j].get()!=NULL) {
-                notNull = j;
-                break;
-            }
-        }
-        if(notNull!=0) {
-            vec[i] = vec[notNull];
-            vec[notNull].reset();
-            newLength++;
-            continue;
-         }
-         break;
-    }
-    setCapacityLength(newLength,newLength);
-}
-
-void PVStructureArray::setCapacity(size_t capacity) {
-    if(getCapacity()==capacity) return;
-    if(!isCapacityMutable()) {
-        std::string message("not capacityMutable");
-        PVField::message(message, errorMessage);
-        return;
-    }
-    size_t length = getLength();
-    if(length>capacity) length = capacity;
-    size_t oldCapacity = getCapacity();
-    if(oldCapacity>capacity) {
-        PVStructurePtrArray array;
-        array.reserve(capacity);
-        array.resize(length);
-        PVStructurePtr * from = get();
-        for (size_t i=0; i<length; i++) array[i] = from[i];
-        value->swap(array);
-    } else {
-        value->reserve(capacity);
-    }
-    setCapacityLength(capacity,length);
-}
-
-void PVStructureArray::setLength(size_t length) {
-    if(PVArray::getLength()==length) return;
-    size_t capacity = PVArray::getCapacity();
-    if(length>capacity) {
-        if(!PVArray::isCapacityMutable()) {
-            std::string message("not capacityMutable");
-            PVField::message(message, errorMessage);
-            return;
-        }
-        setCapacity(length);
-    }
-    value->resize(length);
-    PVArray::setCapacityLength(capacity,length);
-}
-
-StructureArrayConstPtr PVStructureArray::getStructureArray() const
-{
-    return structureArray;
-}
-
-size_t PVStructureArray::get(
-    size_t offset, size_t len, StructureArrayData &data)
-{
-    size_t n = len;
-    size_t length = getLength();
-    if(offset+len > length) {
-        n = length - offset;
-        if(n<0) n = 0;
-    }
-    data.data = *value.get();
-    data.offset = offset;
-    return n;
-}
-
-size_t PVStructureArray::put(size_t offset,size_t len,
-    const_vector const & from, size_t fromOffset)
-{
-    if(isImmutable()) {
-        message(String("field is immutable"), errorMessage);
-        return 0;
-    }
-    if(&from==value.get()) return 0;
-    if(len<1) return 0;
-    size_t length = getLength();
-    size_t capacity = getCapacity();
-    if(offset+len > length) {
-        size_t newlength = offset + len;
-        if(newlength>capacity) {
-            setCapacity(newlength);
-            capacity = getCapacity();
-            newlength = capacity;
-            len = newlength - offset;
-            if(len<=0) return 0;
-        }
-        length = newlength;
-        setLength(length);
-    }
-    PVStructurePtrArray *to = value.get();
-    StructureConstPtr structure = structureArray->getStructure();
-    for(size_t i=0; i<len; i++) {
-    	PVStructurePtr frompv = from[i+fromOffset];
-    	if(frompv.get()!=NULL) {
-    	    if(frompv->getStructure()!=structure) {
-                 throw std::invalid_argument(String(
-                   "Element is not a compatible structure"));
-    	    }
-    	}
-    	(*to)[i+offset] = frompv;
-    }
-    postPut();
-    setLength(length);
-    return len;
-}
-
-void PVStructureArray::shareData(
-     std::tr1::shared_ptr<std::vector<PVStructurePtr> > const & sharedValue,
-     std::size_t capacity,
-     std::size_t length)
-{
-    value = sharedValue;
-    setCapacityLength(capacity,length);
-}
-
-void PVStructureArray::serialize(ByteBuffer *pbuffer,
-        SerializableControl *pflusher) const {
-    serialize(pbuffer, pflusher, 0, getLength());
-}
-
-void PVStructureArray::deserialize(ByteBuffer *pbuffer,
-        DeserializableControl *pcontrol) {
-    size_t size = SerializeHelper::readSize(pbuffer, pcontrol);
-    if(size>=0) {
-        // prepare array, if necessary
-        if(size>getCapacity()) setCapacity(size);
-        setLength(size);
-        PVStructurePtrArray *pvArray = value.get();
-        for(size_t i = 0; i<size; i++) {
-            pcontrol->ensureData(1);
-            size_t temp = pbuffer->getByte();
-            if(temp==0) {
-                (*pvArray)[i].reset();
-            }
-            else {
-                if((*pvArray)[i].get()==NULL) {
-                    StructureConstPtr structure = structureArray->getStructure();
-                    (*pvArray)[i] = getPVDataCreate()->createPVStructure(structure);
-                }
-                (*pvArray)[i]->deserialize(pbuffer, pcontrol);
-            }
-        }
-        postPut();
-    }
-}
-
-void PVStructureArray::serialize(ByteBuffer *pbuffer,
-        SerializableControl *pflusher, size_t offset, size_t count) const {
-    // cache
-    size_t length = getLength();
-
-    // check bounds
-    if(offset<0)
-        offset = 0;
-    else if(offset>length) offset = length;
-    if(count<0) count = length;
-
-    size_t maxCount = length-offset;
-    if(count>maxCount) count = maxCount;
-
-    PVStructurePtrArray pvArray = *value.get();
-    // write
-    SerializeHelper::writeSize(count, pbuffer, pflusher);
-    for(size_t i = 0; i<count; i++) {
-        if(pbuffer->getRemaining()<1) pflusher->flushSerializeBuffer();
-        PVStructurePtr pvStructure = pvArray[i+offset];
-        if(pvStructure.get()==NULL) {
-            pbuffer->putByte(0);
-        }
-        else {
-            pbuffer->putByte(1);
-            pvStructure->serialize(pbuffer, pflusher);
-        }
-    }
-}
-
-}}

pvDataApp/pv/convert.h

@@ -1,768 +0,0 @@
-/* convert.h */
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
- * Author - Marty Kraimer
- */
-/**
- *  @author mrk
- */
-#ifndef CONVERT_H
-#define CONVERT_H
-#include <string>
-#include <stdexcept>
-
-#include <pv/pvIntrospect.h>
-#include <pv/pvData.h>
-#include <vector>
-
-namespace epics { namespace pvData { 
-
-bool operator==(PVField&, PVField&);
-
-static inline bool operator!=(PVField& a, PVField& b)
-{return !(a==b);}
-
-
-bool operator==(const Field&, const Field&);
-bool operator==(const Scalar&, const Scalar&);
-bool operator==(const ScalarArray&, const ScalarArray&);
-bool operator==(const Structure&, const Structure&);
-bool operator==(const StructureArray&, const StructureArray&);
-
-static inline bool operator!=(const Field& a, const Field& b)
-{return !(a==b);}
-static inline bool operator!=(const Scalar& a, const Scalar& b)
-{return !(a==b);}
-static inline bool operator!=(const ScalarArray& a, const ScalarArray& b)
-{return !(a==b);}
-static inline bool operator!=(const Structure& a, const Structure& b)
-{return !(a==b);}
-static inline bool operator!=(const StructureArray& a, const StructureArray& b)
-{return !(a==b);}
-
-
-/**
- * Convert between numeric types,  convert any field to a string,
- *  or convert from a string to a scalar field.
- * <p>Numeric conversions are between scalar numeric types or between arrays of
- * numeric types. It is not possible to convert between a scalar
- * and an array.
- * Numeric conversions are between types:
- * pvByte, pvShort, pvInt, pvLong,
- * pvUByte, pvUShort, pvUInt, pvULong,
- * pvFloat, or pvDouble.</p>
- * 
- * <p>getString converts any supported type to a String.
- * Code that implements a PVField interface should implement
- * method toString by calling this method.</p>
- *
- * <p>fromString converts a String to a scalar.
- * fromStringArray converts an array of Strings
- * to a pvArray, which must have a scaler element type.
- * A scalar field is a numeric field or pvBoolean or pvString.</p>
- * <p>All from methods put data into a PVField, e.g. from means where the PVField gets it's data.</p>
- */
-
-class Convert;
-typedef std::tr1::shared_ptr<Convert> ConvertPtr;
-
-class Convert {
-public:
-    static ConvertPtr getConvert();
-    ~Convert();
-    /**
-     * Get the full fieldName for the pvField.
-     * @param builder The builder that will have the result.
-     * @param pvField The pvField.
-     */
-    void getFullName(StringBuilder buf,PVFieldPtr const & pvField);
-    /**
-     * Do fields have the same definition.
-     *
-     * @param  First field
-     * @param  Second field
-     * @return (false, true) if the fields (are not, are) the same.
-     */
-    bool equals(PVFieldPtr const &a,PVFieldPtr const &b);
-    /**
-     * Do fields have the same definition.
-     *
-     * @param  First field
-     * @param  Second field
-     * @return (false, true) if the fields (are not, are) the same.
-     */
-    bool equals(PVField &a,PVField &b);
-    /**
-     * Convert a PVField to a string.
-     * @param buf buffer for the result
-     * @param pv a PVField to convert to a string.
-     * If a PVField is a structure or array be prepared for a very long string.
-     * @param indentLevel indentation level
-     */
-    void getString(StringBuilder buf,PVFieldPtr const & pvField,int indentLevel);
-    /**
-     * Convert a PVField to a string.
-     * param buf buffer for the result
-     * @param pv The PVField to convert to a string.
-     * If the PVField is a structure or array be prepared for a very long string.
-     */
-    void getString(StringBuilder buf,PVFieldPtr const & pvField);
-    /**
-     * Convert a PVField to a string.
-     * @param buf buffer for the result
-     * @param pv a PVField to convert to a string.
-     * If a PVField is a structure or array be prepared for a very long string.
-     * @param indentLevel indentation level
-     */
-    void getString(StringBuilder buf,PVField const * pvField,int indentLevel);
-    /**
-     * Convert a PVField to a string.
-     * param buf buffer for the result
-     * @param pv The PVField to convert to a string.
-     * If the PVField is a structure or array be prepared for a very long string.
-     */
-    void getString(StringBuilder buf,PVField const * pvField);
-     /**
-      * Convert from an array of String to a PVScalar
-      * @param pv The PV.
-      * @param from The array of String value to convert and put into a PV.
-      * @param fromStartIndex The first element if the array of strings.
-      * @throws std::logic_error if the array of String does not have a valid values.
-      */
-    std::size_t fromString(
-        PVStructurePtr const &pv,
-        StringArray const & from,
-        std::size_t fromStartIndex = 0);
-     /**
-     * Convert from a String to a PVScalar
-     * @param pv The PV.
-     * @param from The String value to convert and put into a PV.
-     * @throws std::logic_error if the String does not have a valid value.
-     */
-    void fromString(PVScalarPtr const & pv, String const & from);
-    /**
-     * Convert  from a String to a PVScalarArray.
-     * The String must be a comma separated set of values optionally enclosed in []
-     * @param pv The PV.
-     * @param from The String value to convert and put into a PV.
-     * @return The number of elements converted.
-     * @throws std::invalid_argument if the element Type is not a scalar.
-     * @throws std::logic_error if the String does not have a valid array values.
-     */
-    std::size_t fromString(PVScalarArrayPtr const & pv, String from);
-    /**
-     * Convert a PVScalarArray from a String array.
-     * The array element type must be a scalar.
-     * @param pv The PV.
-     * @param offset Starting element in a PV.
-     * @param length The number of elements to transfer.
-     * @param from The array of values to put into the PV.
-     * @param fromOffset Starting element in the source array.
-     * @return The number of elements converted.
-     * @throws std::invalid_argument if the element Type is not a scalar.
-     * @throws std::logic_error if the String does not have a valid value.
-     */
-    std::size_t fromStringArray(
-        PVScalarArrayPtr const & pv,
-        std::size_t offset, std::size_t length,
-        StringArray const & from,
-        std::size_t fromOffset);
-    /**
-     * Convert a PVScalarArray to a String array.
-     * @param pv The PV.
-     * @param offset Starting element in the PV array.
-     * @param length Number of elements to convert to the string array.
-     * @param to String array to receive the converted PV data.
-     * @param toOffset Starting element in the string array.
-     * @return Number of elements converted.
-     */
-    std::size_t toStringArray(PVScalarArrayPtr const & pv,
-        std::size_t offset,
-        std::size_t length,
-        StringArray & to,
-        std::size_t toOffset);
-    /**
-     * Are from and to valid arguments to copy.
-     * This first checks of both arguments have the same Type.
-     * Then calls one of isCopyScalarCompatible,
-     * isCopyArrayCompatible, or isCopyStructureCompatible.
-     * @param from The source.
-     * @param to The destination.
-     * @return (false,true) is the arguments (are not, are) compatible.
-     */
-    bool isCopyCompatible(FieldConstPtr const & from, FieldConstPtr const & to);
-    /**
-     * Copy from a PVField to another PVField.
-     * This calls one on copyScalar, copyArray, copyStructure.
-     * The two arguments must be compatible.
-     * @param from The source.
-     * @param to The destination
-     * @throws std::invalid_argument if the arguments are not compatible.
-     */
-    void copy(PVFieldPtr const & from, PVFieldPtr const & to);
-    /**
-     * Are from and to valid arguments to copyScalar.
-     * false will be returned if either argument is not a scalar as defined by Type.isScalar().
-     * If both are scalars the return value is true if any of the following are true.
-     * <ul>
-     *   <li>Both arguments are numeric.</li>
-     *   <li>Both arguments have the same type.</li>
-     *   <li>Either argument is a string.</li>
-     * </ul>
-     * @param from The introspection interface for the from data.
-     * @param to The introspection interface for the to data..
-     * @return (false,true) If the arguments (are not, are) compatible.
-     */
-    bool isCopyScalarCompatible(
-        ScalarConstPtr const & from,
-        ScalarConstPtr const & to);
-    /**
-     * Copy from a scalar pv to another scalar pv.
-     * @param from the source.
-     * @param to the destination.
-     * @throws std::invalid_argument if the arguments are not compatible.
-     */
-    void copyScalar(PVScalarPtr const & from, PVScalarPtr const & to);
-    /**
-     * Are from and to valid arguments to copyArray.
-     * The results are like isCopyScalarCompatible except that the tests are made on the elementType.
-     * @param from The from array.
-     * @param to The to array.
-     * @return (false,true) If the arguments (are not, are) compatible.
-     */
-    bool isCopyScalarArrayCompatible(
-        ScalarArrayConstPtr const & from,
-        ScalarArrayConstPtr const & to);
-    /**
-     * Convert from a source PV array to a destination PV array.
-     * @param from The source array.
-     * @param offset Starting element in the source.
-     * @param to The destination array.
-     * @param toOffset Starting element in the array.
-     * @param length Number of elements to transfer.
-     * @return Number of elements converted.
-     * @throws std::invalid_argument if the arguments are not compatible.
-     */
-    std::size_t copyScalarArray(
-        PVScalarArrayPtr const & from,
-        std::size_t offset,
-        PVScalarArrayPtr const & to,
-        std::size_t toOffset,
-        std::size_t length);
-    /**
-     * Are from and to valid arguments for copyStructure.
-     * They are only compatible if they have the same Structure description.
-     * @param from from structure.
-     * @param to structure.
-     * @return (false,true) If the arguments (are not, are) compatible.
-     */
-    bool isCopyStructureCompatible(
-        StructureConstPtr const & from, StructureConstPtr const & to);
-    /**
-     * Copy from a structure pv to another structure pv.
-     * NOTE: Only compatible nodes are copied. This means:
-     * <ul>
-     *    <li>For scalar nodes this means that isCopyScalarCompatible is true.</li>
-     *    <li>For array nodes this means that isCopyArrayCompatible is true.</li>
-     *    <li>For structure nodes this means that isCopyStructureCompatible is true.</li>
-     *    <li>Link nodes are not copied.</li>
-     * </ul>
-     * @param from The source.
-     * @param to The destination.
-     * @throws std::invalid_argument if the arguments are not compatible.
-     */
-    void copyStructure(PVStructurePtr const & from, PVStructurePtr const & to);
-    /**
-     * Are from and to valid for copyStructureArray.
-     * @param from The from StructureArray.
-     * @param to The to StructureArray.
-     * @return (false,true) If the arguments (are not, are) compatible.
-     */
-    bool isCopyStructureArrayCompatible(
-        StructureArrayConstPtr const & from, StructureArrayConstPtr const & to);
-     /**
-      * Copy from a structure array to another structure array.
-      * @param from The source array.
-      * @param to The destination array.
-      */
-    void copyStructureArray(
-        PVStructureArrayPtr const & from, PVStructureArrayPtr const & to);
-    /**
-     * Convert a PV to a <byte>.
-     * @param pv a PV
-     * @return converted value
-     */
-    int8 toByte(PVScalarPtr const & pv);
-    /**
-     * Convert a PV to a short.
-     * @param pv a PV
-     * @return converted value
-     * @throws std::invalid_argument if the Type is not a numeric scalar
-     */
-    int16 toShort(PVScalarPtr const & pv);
-    /**
-     * Convert a PV to a int.
-     * @param pv a PV
-     * @return converted value
-     * @throws std::invalid_argument if the Type is not a numeric scalar
-     */
-    int32 toInt(PVScalarPtr const & pv);
-    /**
-     * Convert a PV to an long
-     * @param pv a PV
-     * @return converted value
-     * @throws std::invalid_argument if the Type is not a numeric scalar
-     */
-    int64 toLong(PVScalarPtr const & pv);
-    /**
-     * Convert a PV to a ubyte.
-     * @param pv a PV
-     * @return converted value
-     */
-    uint8 toUByte(PVScalarPtr const & pv);
-    /**
-     * Convert a PV to a ushort.
-     * @param pv a PV
-     * @return converted value
-     * @throws std::invalid_argument if the Type is not a numeric scalar
-     */
-    uint16 toUShort(PVScalarPtr const & pv);
-    /**
-     * Convert a PV to a uint.
-     * @param pv a PV
-     * @return converted value
-     * @throws std::invalid_argument if the Type is not a numeric scalar
-     */
-    uint32 toUInt(PVScalarPtr const & pv);
-    /**
-     * Convert a PV to an ulong
-     * @param pv a PV
-     * @return converted value
-     * @throws std::invalid_argument if the Type is not a numeric scalar
-     */
-    uint64 toULong(PVScalarPtr const & pv);
-    /**
-     * Convert a PV to a float
-     * @param pv a PV
-     * @return converted value
-     * @throws std::invalid_argument if the Type is not a numeric scalar
-     */
-    float toFloat(PVScalarPtr const & pv);
-    /**
-     * Convert a PV to a double
-     * @param pv a PV
-     * @return converted value
-     * @throws std::invalid_argument if the Type is not a numeric scalar
-     */
-    double toDouble(PVScalarPtr const & pv);
-    /**
-     * Convert a PV to a String
-     * @param pv a PV
-     * @return converted value
-     */
-    String toString(PVScalarPtr const & pv);
-    /**
-     * Convert a PV from a byte
-     * @param pv a PV
-     * @param from value to put into PV
-     * @throws std::invalid_argument if the Type is not a numeric scalar
-     */
-    void fromByte(PVScalarPtr const & pv,int8 from);
-    /**
-     * Convert a PV from a short
-     * @param pv a PV
-     * @param from value to put into PV
-     * @throws std::invalid_argument if the Type is not a numeric scalar
-     */
-    void fromShort(PVScalarPtr const & pv,int16 from);
-    /**
-     * Convert a PV from an int
-     * @param pv a PV
-     * @param from value to put into PV
-     * @throws std::invalid_argument if the Type is not a numeric scalar
-     */
-    void fromInt(PVScalarPtr const & pv, int32 from);
-    /**
-     * Convert a PV from a long
-     * @param pv a PV
-     * @param from value to put into PV
-     * @throws std::invalid_argument if the Type is not a numeric scalar
-     */
-    void fromLong(PVScalarPtr const & pv, int64 from);
-    /**
-     * Convert a PV from a ubyte
-     * @param pv a PV
-     * @param from value to put into PV
-     * @throws std::invalid_argument if the Type is not a numeric scalar
-     */
-    void fromUByte(PVScalarPtr const & pv,uint8 from);
-    /**
-     * Convert a PV from a ushort
-     * @param pv a PV
-     * @param from value to put into PV
-     * @throws std::invalid_argument if the Type is not a numeric scalar
-     */
-    void fromUShort(PVScalarPtr const & pv,uint16 from);
-    /**
-     * Convert a PV from an uint
-     * @param pv a PV
-     * @param from value to put into PV
-     * @throws std::invalid_argument if the Type is not a numeric scalar
-     */
-    void fromUInt(PVScalarPtr const & pv, uint32 from);
-    /**
-     * Convert a PV from a ulong
-     * @param pv a PV
-     * @param from value to put into PV
-     * @throws std::invalid_argument if the Type is not a numeric scalar
-     */
-    void fromULong(PVScalarPtr const & pv, uint64 from);
-    /**
-     * Convert a PV from a float
-     * @param pv a PV
-     * @param from value to put into PV
-     * @throws std::invalid_argument if the Type is not a numeric scalar
-     */
-    void fromFloat(PVScalarPtr const & pv, float from);
-    /**
-     * Convert a PV from a double
-     * @param pv a PV
-     * @param from value to put into PV
-     * @throws std::invalid_argument if the Type is not a numeric scalar
-     */
-    void fromDouble(PVScalarPtr const & pv, double from);
-    /**
-     * Convert a PV array to a byte array.
-     * @param pv a PV
-     * @param offset starting element in a PV
-     * @param length number of elements to transfer
-     * @param to where to put the PV data
-     * @param toOffset starting element in the array
-     * @return number of elements converted
-     * @throws std::invalid_argument if the element type is not numeric
-     */
-    std::size_t toByteArray(PVScalarArrayPtr const & pv,
-        std::size_t offset,
-        std::size_t length,
-        int8* to,
-        std::size_t toOffset);
-    /**
-     * Convert a PV array to a short array.
-     * @param pv a PV
-     * @param offset starting element in a PV
-     * @param length number of elements to transfer
-     * @param to where to put the PV data
-     * @param toOffset starting element in the array
-     * @return number of elements converted
-    * @throws std::invalid_argument if the element type is not numeric
-    */
-    std::size_t toShortArray(PVScalarArrayPtr const & pv,
-        std::size_t offset,
-        std::size_t length,
-        int16* to,
-        std::size_t toOffset);
-    /**
-     * Convert a PV array to an int array.
-     * @param pv a PV
-     * @param offset starting element in a PV
-     * @param length number of elements to transfer
-     * @param to where to put the PV data
-     * @param toOffset starting element in the array
-     * @return number of elements converted
-     * @throws std::invalid_argument if the element type is not numeric
-     */
-    std::size_t toIntArray(PVScalarArrayPtr const & pv,
-        std::size_t offset,
-        std::size_t length,
-        int32* to,
-        std::size_t toOffset);
-    /**
-     * Convert a PV array to a long array.
-     * @param pv a PV
-     * @param offset starting element in a PV
-     * @param length number of elements to transfer
-     * @param to where to put the PV data
-     * @param toOffset starting element in the array
-     * @return number of elements converted
-     * @throws std::invalid_argument if the element type is not numeric
-     */
-    std::size_t toLongArray(PVScalarArrayPtr const & pv,
-        std::size_t offset,
-        std::size_t length,
-        int64* to,
-        std::size_t toOffset);
-    /**
-     * Convert a PV array to a ubyte array.
-     * @param pv a PV
-     * @param offset starting element in a PV
-     * @param length number of elements to transfer
-     * @param to where to put the PV data
-     * @param toOffset starting element in the array
-     * @return number of elements converted
-     * @throws std::invalid_argument if the element type is not numeric
-     */
-    std::size_t toUByteArray(PVScalarArrayPtr const & pv,
-        std::size_t offset,
-        std::size_t length,
-        uint8* to,
-        std::size_t toOffset);
-    /**
-     * Convert a PV array to a ushort array.
-     * @param pv a PV
-     * @param offset starting element in a PV
-     * @param length number of elements to transfer
-     * @param to where to put the PV data
-     * @param toOffset starting element in the array
-     * @return number of elements converted
-    * @throws std::invalid_argument if the element type is not numeric
-    */
-    std::size_t toUShortArray(PVScalarArrayPtr const & pv,
-        std::size_t offset,
-        std::size_t length,
-        uint16* to,
-        std::size_t toOffset);
-    /**
-     * Convert a PV array to an uint array.
-     * @param pv a PV
-     * @param offset starting element in a PV
-     * @param length number of elements to transfer
-     * @param to where to put the PV data
-     * @param toOffset starting element in the array
-     * @return number of elements converted
-     * @throws std::invalid_argument if the element type is not numeric
-     */
-    std::size_t toUIntArray(
-        PVScalarArrayPtr const & pv,
-        std::size_t offset,
-        std::size_t length,
-        uint32* to,
-        std::size_t toOffset);
-    /**
-     * Convert a PV array to a ulong array.
-     * @param pv a PV
-     * @param offset starting element in a PV
-     * @param length number of elements to transfer
-     * @param to where to put the PV data
-     * @param toOffset starting element in the array
-     * @return number of elements converted
-     * @throws std::invalid_argument if the element type is not numeric
-     */
-    std::size_t toULongArray(
-        PVScalarArrayPtr const & pv,
-        std::size_t offset,
-        std::size_t length,
-        uint64* to,
-        std::size_t toOffset);
-     /**
-      * Convert a PV array to a float array.
-      * @param pv a PV
-      * @param offset starting element in a PV
-      * @param length number of elements to transfer
-      * @param to where to put the PV data
-      * @param toOffset starting element in the array
-      * @return number of elements converted
-      * @throws std::invalid_argument if the element type is not numeric
-      */
-    std::size_t toFloatArray(
-        PVScalarArrayPtr const & pv,
-        std::size_t offset,
-        std::size_t length,
-        float* to,
-        std::size_t toOffset);
-    /**
-     * Convert a PV array to a double array.
-     * @param pv a PV
-     * @param offset starting element in a PV
-     * @param length number of elements to transfer
-     * @param to where to put the PV data
-     * @param toOffset starting element in the array
-     * @return number of elements converted
-     * @throws std::invalid_argument if the element type is not numeric
-     */
-    std::size_t toDoubleArray(
-        PVScalarArrayPtr const & pv,
-        std::size_t offset,
-        std::size_t length,
-        double* to, std::size_t
-        toOffset);
-    /**
-     * Convert a PV array from a byte array.
-     * @param pv a PV
-     * @param offset starting element in a PV
-     * @param length number of elements to transfer
-     * @param from value to put into PV
-     * @param fromOffset
-     * @return number of elements converted
-     * @throws std::invalid_argument if the element type is not numeric
-     */
-    std::size_t fromByteArray(
-        PVScalarArrayPtr & pv, std::size_t offset, std::size_t length,
-        const int8* from, std::size_t fromOffset);
-    std::size_t fromByteArray(
-        PVScalarArrayPtr & pv, std::size_t offset, std::size_t length,
-        const ByteArray & from, std::size_t fromOffset);
-    /**
-     * Convert a PV array from a short array.
-     * @param pv a PV
-     * @param offset starting element in a PV
-     * @param length number of elements to transfer
-     * @param from value to put into PV
-     * @param fromOffset starting element in the source array
-     * @return number of elements converted
-     * @throws std::invalid_argument if the element type is not numeric
-     */
-    std::size_t fromShortArray(
-        PVScalarArrayPtr & pv, std::size_t offset, std::size_t length,
-        const int16* from, std::size_t fromOffset);
-    std::size_t fromShortArray(
-        PVScalarArrayPtr & pv, std::size_t offset, std::size_t length,
-        const ShortArray & from, std::size_t fromOffset);
-    /**
-     * Convert a PV array from an int array.
-     * @param pv a PV
-     * @param offset starting element in a PV
-     * @param length number of elements to transfer
-     * @param from value to put into PV
-     * @param fromOffset starting element in the source array
-     * @return number of elements converted
-     * @throws std::invalid_argument if the element type is not numeric
-     */
-    std::size_t fromIntArray(
-       PVScalarArrayPtr & pv, std::size_t offset, std::size_t length,
-       const int32* from, std::size_t fromOffset);
-    std::size_t fromIntArray(
-       PVScalarArrayPtr & pv, std::size_t offset, std::size_t length,
-       const IntArray & from, std::size_t fromOffset);
-    /**
-     * Convert a PV array from a long array.
-     * @param pv a PV
-     * @param offset starting element in a PV
-     * @param length number of elements to transfer
-     * @param from value to put into PV
-     * @param fromOffset starting element in the source array
-     * @return number of elements converted
-     * @throws std::invalid_argument if the element type is not numeric
-     */
-    std::size_t fromLongArray(
-        PVScalarArrayPtr & pv, std::size_t offset, std::size_t length,
-        const int64* from, std::size_t fromOffset);
-    std::size_t fromLongArray(
-        PVScalarArrayPtr & pv, std::size_t offset, std::size_t length,
-        const LongArray & from, std::size_t fromOffset);
-    /**
-     * Convert a PV array from a ubyte array.
-     * @param pv a PV
-     * @param offset starting element in a PV
-     * @param length number of elements to transfer
-     * @param from value to put into PV
-     * @param fromOffset
-     * @return number of elements converted
-     * @throws std::invalid_argument if the element type is not numeric
-     */
-    std::size_t fromUByteArray(
-        PVScalarArrayPtr & pv, std::size_t offset, std::size_t length,
-        const uint8* from, std::size_t fromOffset);
-    std::size_t fromUByteArray(
-        PVScalarArrayPtr & pv, std::size_t offset, std::size_t length,
-        const UByteArray & from, std::size_t fromOffset);
-    /**
-     * Convert a PV array from a ushort array.
-     * @param pv a PV
-     * @param offset starting element in a PV
-     * @param length number of elements to transfer
-     * @param from value to put into PV
-     * @param fromOffset starting element in the source array
-     * @return number of elements converted
-     * @throws std::invalid_argument if the element type is not numeric
-     */
-    std::size_t fromUShortArray(
-        PVScalarArrayPtr & pv, std::size_t offset, std::size_t length,
-        const uint16* from, std::size_t fromOffset);
-    std::size_t fromUShortArray(
-        PVScalarArrayPtr & pv, std::size_t offset, std::size_t length,
-        const UShortArray & from, std::size_t fromOffset);
-    /**
-     * Convert a PV array from an uint array.
-     * @param pv a PV
-     * @param offset starting element in a PV
-     * @param length number of elements to transfer
-     * @param from value to put into PV
-     * @param fromOffset starting element in the source array
-     * @return number of elements converted
-     * @throws std::invalid_argument if the element type is not numeric
-     */
-    std::size_t fromUIntArray(
-        PVScalarArrayPtr & pv, std::size_t offset, std::size_t length,
-        const uint32* from, std::size_t fromOffset);
-    std::size_t fromUIntArray(
-        PVScalarArrayPtr & pv, std::size_t offset, std::size_t length,
-        const UIntArray & from, std::size_t fromOffset);
-    /**
-     * Convert a PV array from a ulong array.
-     * @param pv a PV
-     * @param offset starting element in a PV
-     * @param length number of elements to transfer
-     * @param from value to put into PV
-     * @param fromOffset starting element in the source array
-     * @return number of elements converted
-     * @throws std::invalid_argument if the element type is not numeric
-     */
-    std::size_t fromULongArray(
-        PVScalarArrayPtr & pv, std::size_t offset, std::size_t length,
-        const uint64* from, std::size_t fromOffset);
-    std::size_t fromULongArray(
-        PVScalarArrayPtr & pv, std::size_t offset, std::size_t length,
-        const ULongArray & from, std::size_t fromOffset);
-    /**
-     * Convert a PV array from a float array.
-     * @param pv a PV
-     * @param offset starting element in a PV
-     * @param length number of elements to transfer
-     * @param from value to put into PV
-     * @param fromOffset starting element in the source array
-     * @return number of elements converted
-     * @throws std::invalid_argument if the element type is not numeric
-     */
-    std::size_t fromFloatArray(
-        PVScalarArrayPtr & pv, std::size_t offset, std::size_t length,
-        const float* from, std::size_t fromOffset);
-    std::size_t fromFloatArray(
-        PVScalarArrayPtr & pv, std::size_t offset, std::size_t length,
-        const FloatArray & from, std::size_t fromOffset);
-    /**
-     * Convert a PV array from a double array.
-     * @param pv a PV
-     * @param offset starting element in a PV
-     * @param length number of elements to transfer
-     * @param from value to put into PV
-     * @param fromOffset starting element in the source array
-     * @return number of elements converted
-     * @throws std::invalid_argument if the element type is not numeric
-     */
-    std::size_t fromDoubleArray(
-        PVScalarArrayPtr & pv, std::size_t offset, std::size_t length,
-        const double* from, std::size_t fromOffset);
-    std::size_t fromDoubleArray(
-        PVScalarArrayPtr & pv, std::size_t offset, std::size_t length,
-        const DoubleArray & from, std::size_t fromOffset);
-    /**
-     * Convenience method for implementing toString.
-     * It generates a newline and inserts blanks at the beginning of the newline.
-     * @param builder The StringBuilder being constructed.
-     * @param indentLevel Indent level, Each level is four spaces.
-     */
-    void newLine(StringBuilder buf, int indentLevel);
-private:
-    Convert();
-    PVDataCreatePtr pvDataCreate;
-    String trueString;
-    String falseString;
-    String illegalScalarType;
-};
-
-extern ConvertPtr getConvert();
-    
-}}
-#endif  /* CONVERT_H */

pvDataApp/pv/pvIntrospect.h

@@ -1,559 +0,0 @@
-/* pvIntrospect.h */
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
- */
-/**
- *  @author mrk and Michael Davidsaver
- */
-#ifndef PVINTROSPECT_H
-#define PVINTROSPECT_H
-#include <string>
-#include <stdexcept>
-
-#include <pv/noDefaultMethods.h>
-#include <pv/pvType.h>
-#include <pv/byteBuffer.h>
-#include <pv/serialize.h>
-
-namespace epics { namespace pvData { 
-
-class Field;
-class Scalar;
-class ScalarArray;
-class Structure;
-class StructureArray;
-
-/**
- * typedef for a shared pointer to an immutable Field.
- */
-typedef std::tr1::shared_ptr<const Field> FieldConstPtr;
-/**
- * typedef for an array of shared pointer to an immutable Field.
- */
-typedef std::vector<FieldConstPtr> FieldConstPtrArray;
-/**
- * typedef for a shared pointer to an immutable Scalar.
- */
-typedef std::tr1::shared_ptr<const Scalar> ScalarConstPtr;
-/**
- * typedef for a shared pointer to an immutable ScalarArray.
- */
-typedef std::tr1::shared_ptr<const ScalarArray> ScalarArrayConstPtr;
-/**
- * typedef for a shared pointer to an immutable Structure.
- */
-typedef std::tr1::shared_ptr<const Structure> StructureConstPtr;
-/**
- * typedef for a shared pointer to an immutable StructureArray.
- */
-typedef std::tr1::shared_ptr<const StructureArray> StructureArrayConstPtr;
-
-/**
- * Definition of support field types.
- */
-enum Type {
-    /**
-     * The type is scalar. It has a scalarType
-     */
-    scalar,
-    /**
-     * The type is scalarArray. Each element is a scalar of the same scalarType.
-     */
-    scalarArray,
-    /**
-     * The type is structure.
-     */
-    structure,
-    /**
-     * The type is structureArray. Each element is a structure.
-     */
-    structureArray
-};
-
-/**
- * Convenience functions for Type.
- */
-namespace TypeFunc {
-    /**
-     * Get a name for the type.
-     * @param  type The type.
-     * @return The name for the type.
-     */
-    const char* name(Type type);
-    /**
-     * Convert the type to a string and add it to builder.
-     * @param  builder The string builder.
-     * @param  type    The type.
-     */
-    void toString(StringBuilder builder,const Type type);
-};
-
-/**
- * Definition of support scalar types.
- */
-enum ScalarType {
-    /**
-     * The type is boolean, i. e. value can be {@code false} or {@code true}
-     */
-    pvBoolean,
-    /**
-     * The type is byte, i. e. a 8 bit signed integer.
-     */
-    pvByte,
-    /**
-     * The type is short, i. e. a 16 bit signed integer.
-     */
-    pvShort,
-    /**
-     * The type is int, i. e. a 32 bit signed integer.
-     */
-    pvInt,
-    /**
-     * The type is long, i. e. a 64 bit signed integer.
-     */
-    pvLong,
-    /**
-     * The type is unsigned byte, i. e. a 8 bit unsigned integer.
-     */
-    pvUByte,
-    /**
-     * The type is unsigned short, i. e. a 16 bit unsigned integer.
-     */
-    pvUShort,
-    /**
-     * The type is unsigned int, i. e. a 32 bit unsigned integer.
-     */
-    pvUInt,
-    /**
-     * The type is unsigned long, i. e. a 64 bit unsigned integer.
-     */
-    pvULong,
-    /**
-     * The type is float, i. e. 32 bit IEEE floating point,
-     */
-    pvFloat,
-    /**
-     * The type is float, i. e. 64 bit IEEE floating point,
-     */
-    pvDouble,
-    /**
-     * The type is string, i. e. a UTF8 character string.
-     */
-    pvString
-};
-
-/**
- * Convenience functions for ScalarType.
- */
-namespace ScalarTypeFunc {
-    /**
-     * Is the type an integer, i. e. is it one of byte,...ulong
-     * @param  scalarType The type.
-     * @return (false,true) if the scalarType is an integer.
-     */
-    bool isInteger(ScalarType scalarType);
-    /**
-     * Is the type an unsigned integer, i. e. is it one of ubyte,...ulong
-     * @param  scalarType The type.
-     * @return (false,true) if the scalarType is an integer.
-     */
-    bool isUInteger(ScalarType scalarType);
-    /**
-     * Is the type numeric, i. e. is it one of byte,...,double
-     * @param  scalarType The type.
-     * @return (false,true) if the scalarType is a numeric
-     */
-    bool isNumeric(ScalarType scalarType);
-    /**
-     * Is the type primitive, i. e. not string
-     * @param  scalarType The type.
-     * @return (false,true) if the scalarType is primitive.
-     */
-    bool isPrimitive(ScalarType scalarType);
-    /**
-     * Get the scalarType for value.
-     * @param  value The name of the scalar type.
-     * @return The scalarType.
-     * An exception is thrown if the name is not the name of a scalar type.
-     */
-    ScalarType getScalarType(String const &value);
-    /**
-     * Get a name for the scalarType.
-     * @param  scalarType The type.
-     * @return The name for the scalarType.
-     */
-    const char* name(ScalarType scalarType);
-    /**
-     * Convert the scalarType to a string and add it to builder.
-     * @param  builder The string builder.
-     * @param  scalarType    The type.
-     */
-    void toString(StringBuilder builder,ScalarType scalarType);
-};
-
-/**
- * This class implements introspection object for field.
- */
-class Field : 
-    virtual public Serializable,
-    public std::tr1::enable_shared_from_this<Field> {
-public:
-   POINTER_DEFINITIONS(Field);
-    /**
-     * Destructor.
-     */
-   virtual ~Field();
-    /**
-     * Get the field type.
-     * @return The type.
-     */
-   Type getType() const{return m_fieldType;}
-   /**
-    * Get the identification string.
-    * @return The identification string, can be empty.
-    */
-   virtual String getID() const = 0;
-    /**
-     * Convert the scalarType to a string and add it to builder.
-     * @param  builder The string builder.
-     */
-   virtual void toString(StringBuilder builder) const{toString(builder,0);}
-    /**
-     * Convert the scalarType to a string and add it to builder.
-     * @param  builder The string builder.
-     * @param  indentLevel The number of blanks at the beginning of new lines.
-     */
-   virtual void toString(StringBuilder builder,int indentLevel) const;
-protected:
-    /**
-     * Constructor
-     * @param  fieldName The field type.
-     */
-   Field(Type type);
-private:
-   Type m_fieldType;
-
-   friend class StructureArray;
-   friend class Structure;
-   friend class PVFieldPvt;
-   friend class StandardField;
-   friend class BasePVStructureArray;
-   friend class FieldCreate;
-
-   struct Deleter{void operator()(Field *p){delete p;}};
-};
-
-
-/**
- * This class implements introspection object for Scalar.
- */
-class Scalar : public Field{
-public:
-    POINTER_DEFINITIONS(Scalar);
-    /**
-     * Destructor.
-     */
-    virtual ~Scalar();
-    typedef Scalar& reference;
-    typedef const Scalar& const_reference;
-    /**
-     * Get the scalarType
-     * @return the scalarType
-     */
-    ScalarType getScalarType() const {return scalarType;}
-    /**
-     * Convert the scalar to a string and add it to builder.
-     * @param  builder The string builder.
-     */
-    virtual void toString(StringBuilder buf) const{toString(buf,0);}
-    /**
-     * Convert the scalar to a string and add it to builder.
-     * @param  builder The string builder.
-     * @param  indentLevel The number of blanks at the beginning of new lines.
-     */
-    virtual void toString(StringBuilder buf,int indentLevel) const;
-
-    virtual String getID() const;
-
-    virtual void serialize(ByteBuffer *buffer, SerializableControl *control) const;
-    virtual void deserialize(ByteBuffer *buffer, DeserializableControl *control);
-    
-protected:
-    Scalar(ScalarType scalarType);
-private:
-    const int8 getTypeCodeLUT() const;
-    ScalarType scalarType;
-    friend class FieldCreate;
-};
-
-/**
- * This class implements introspection object for field.
- */
-class ScalarArray : public Field{
-public:
-    POINTER_DEFINITIONS(ScalarArray);
-    typedef ScalarArray& reference;
-    typedef const ScalarArray& const_reference;
-
-    /**
-     * Constructor
-     * @param scalarType The scalarType for the field.
-     */
-    ScalarArray(ScalarType scalarType);
-    /**
-     * Get the scalarType for the elements.
-     * @return the scalarType
-     */
-    ScalarType  getElementType() const {return elementType;}
-    /**
-     * Convert the scalarType to a string and add it to builder.
-     * @param  builder The string builder.
-     */
-    virtual void toString(StringBuilder buf) const{toString(buf,0);}
-    /**
-     * Convert the scalarType to a string and add it to builder.
-     * @param  builder The string builder.
-     * @param  indentLevel The number of blanks at the beginning of new lines.
-     */
-    virtual void toString(StringBuilder buf,int indentLevel) const;
-    
-    virtual String getID() const;
-
-    virtual void serialize(ByteBuffer *buffer, SerializableControl *control) const;
-    virtual void deserialize(ByteBuffer *buffer, DeserializableControl *control);
-    
-protected:
-    /**
-     * Destructor.
-     */
-    virtual ~ScalarArray();
-private:
-    const int8 getTypeCodeLUT() const;
-    const String getIDScalarArrayLUT() const;
-    ScalarType elementType;
-    friend class FieldCreate;
-};
-
-/**
- * This class implements introspection object for a structureArray
- */
-class StructureArray : public Field{
-public:
-    POINTER_DEFINITIONS(StructureArray);
-    typedef StructureArray& reference;
-    typedef const StructureArray& const_reference;
-
-    /**
-     * Get the introspection interface for the array elements.
-     * @return The introspection interface.
-     */
-    StructureConstPtr  getStructure() const {return pstructure;}
-
-    /**
-     * Convert the scalarType to a string and add it to builder.
-     * @param  builder The string builder.
-     * @param  indentLevel The number of blanks at the beginning of new lines.
-     */
-    virtual void toString(StringBuilder buf,int indentLevel=0) const;
-    
-    virtual String getID() const;
-
-    virtual void serialize(ByteBuffer *buffer, SerializableControl *control) const;
-    virtual void deserialize(ByteBuffer *buffer, DeserializableControl *control);
-
-protected:
-    /**
-     * Constructor.
-     * @param structure The introspection interface for the elements.
-     */
-    StructureArray(StructureConstPtr const & structure);
-    /**
-     * Destructor.
-     */
-    virtual ~StructureArray();
-private:
-    StructureConstPtr pstructure;
-    friend class FieldCreate;
-};
-
-/**
- * This class implements introspection object for a structure.
- */
-class Structure : public Field {
-public:
-    POINTER_DEFINITIONS(Structure);
-
-    /**
-     * Default structure ID.
-     */
-    static epics::pvData::String DEFAULT_ID;
-
-    /**
-     * Destructor.
-     */
-    virtual ~Structure();
-    typedef Structure& reference;
-    typedef const Structure& const_reference;
-
-    /**
-     * Get the number of immediate subfields in the structure/
-     * @return The number of fields.
-     */
-    std::size_t getNumberFields() const {return fieldNames.size();}
-    /**
-     * Get the field for the specified fieldName.
-     * @param fieldName The name of the field to get;
-     * @return The introspection interface.
-     * This will hold a null pointer if the field is not in the structure.
-     */
-    FieldConstPtr getField(String const &fieldName) const;
-    /**
-     * Get the field for the specified fieldName.
-     * @param fieldName The index of the field to get;
-     * @return The introspection interface.
-     * This will hold a null pointer if the field is not in the structure.
-     */
-    FieldConstPtr getField(std::size_t index) const {return fields[index];}
-    /**
-     * Get the field index for the specified fieldName.
-     * @return The introspection interface.
-     * This will be -1 if the field is not in the structure.
-     */
-    std::size_t getFieldIndex(String const &fieldName) const;
-    /**
-     * Get the fields in the structure.
-     * @return The array of fields.
-     */
-    FieldConstPtrArray const & getFields() const {return fields;}
-    /**
-     * Get the names of the fields in the structure.
-     * @return The array of fieldNames.
-     */
-    StringArray const & getFieldNames() const {return fieldNames;}
-    void renameField(std::size_t fieldIndex,String const & newName)
-        {fieldNames[fieldIndex] = newName;}
-    /**
-     * Get the name of the field with the specified index;
-     * @param fieldIndex The index of the desired field.
-     * @return The fieldName.
-     */
-    String getFieldName(std::size_t fieldIndex){return fieldNames[fieldIndex];}
-    /**
-     * Convert the structure to a string and add it to builder.
-     * @param  builder The string builder.
-     */
-    virtual void toString(StringBuilder buf) const{toString(buf,0);}
-    /**
-     * Convert the structure to a string and add it to builder.
-     * @param  builder The string builder.
-     * @param  indentLevel The number of blanks at the beginning of new lines.
-     */
-    virtual void toString(StringBuilder buf,int indentLevel) const;
-    
-    virtual String getID() const;
-
-    virtual void serialize(ByteBuffer *buffer, SerializableControl *control) const;
-    virtual void deserialize(ByteBuffer *buffer, DeserializableControl *control);
-    
-protected:
-   Structure(StringArray const & fieldNames, FieldConstPtrArray const & fields, String const & id = DEFAULT_ID);
-private:
-    void toStringCommon(StringBuilder buf,int indentLevel) const;
-    StringArray fieldNames;
-    FieldConstPtrArray fields;
-    String id;
-   friend class FieldCreate;
-};
-
-/**
- * This is a singlton class for creating introspection interfaces.
- */
-class FieldCreate;
-typedef std::tr1::shared_ptr<FieldCreate> FieldCreatePtr;
-
-class FieldCreate {
-public:
-     static FieldCreatePtr getFieldCreate();
-    /**
-     * Create a {@code ScalarField}.
-     * @param scalarType The scalar type.
-     * @return a {@code Scalar} interface for the newly created object.
-     * @throws An {@code IllegalArgumentException} if an illegal type is specified.
-     */
-    ScalarConstPtr  createScalar(ScalarType scalarType) const;
-    /**
-     * Create an {@code Array} field.
-     * @param elementType The {@code scalarType} for array elements
-     * @return An {@code Array} Interface for the newly created object.
-     */
-    ScalarArrayConstPtr createScalarArray(ScalarType elementType) const;
-     /**
-      * Create an {@code Array} field that is has element type <i>Structure</i>
-      * @param fieldName The field name
-      * @param elementStructure The {@code Structure} for each array element.
-      * @return An {@code Array} Interface for the newly created object.
-      */
-    StructureArrayConstPtr createStructureArray(StructureConstPtr const & structure) const;
-    /**
-     * Create a {@code Structure} field.
-     * @param fieldNames The array of {@code fieldNames} for the structure.
-     * @param fields The array of {@code fields} for the structure.
-     * @return a {@code Structure} interface for the newly created object.
-     */
-    StructureConstPtr createStructure (
-        StringArray const & fieldNames,
-        FieldConstPtrArray const & fields) const;
-    /**
-     * Create a {@code Structure} field with identification string.
-     * @param id The identification string for the structure.
-     * @param fieldNames The array of {@code fieldNames} for the structure.
-     * @param fields The array of {@code fields} for the structure.
-     * @return a {@code Structure} interface for the newly created object.
-     */
-    StructureConstPtr createStructure (
-    	String const & id,
-        StringArray const & fieldNames,
-        FieldConstPtrArray const & fields) const;
-    /**
-     * Append a field to a structure.
-     * @param structure The structure to which the field is appended.
-     * @param fieldName The name of the field.
-     * @param field The field.
-     * @return a {@code Structure} interface for the newly created object.
-     */
-    StructureConstPtr appendField(
-        StructureConstPtr const & structure,
-        String const & fieldName, FieldConstPtr const & field) const;
-    /**
-     * Append fields to a structure.
-     * @param structure The structure to which the fields appended.
-     * @param fieldName The names of the fields.
-     * @param field The fields.
-     * @return a {@code Structure} interface for the newly created object.
-     */
-    StructureConstPtr appendFields(
-        StructureConstPtr const & structure,
-        StringArray const & fieldNames,
-        FieldConstPtrArray const & fields) const;
-    /**
-     * Deserialize {@code Field} instance from given byte buffer.
-     * @param buffer Buffer containing serialized {@code Field} instance. 
-     * @param control Deserialization control instance.
-     * @return a deserialized {@code Field} instance.
-     */
-    FieldConstPtr deserialize(ByteBuffer* buffer, DeserializableControl* control) const;
-        
-private:
-   FieldCreate();
-};
-
-/**
- * Get the single class that implemnents FieldCreate,
- * @param The fieldCreate factory.
- */
-extern FieldCreatePtr getFieldCreate();
-
-}}
-#endif  /* PVINTROSPECT_H */

pvDataApp/pv/pvType.h

@@ -1,452 +0,0 @@
-/* pvType.h */
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
- */
-/**
- *  @author mrk
- */
-
-/* Definitions for the primitive types for pvData.
- * It also defines the arrays of the primitive types
- */
-
-#ifndef PVTYPE_H
-#define PVTYPE_H
-#include <string>
-#include <vector>
-
-#ifdef __vxworks
-typedef int intptr_t;
-typedef unsigned int uintptr_t;
-#define INT64_MAX (0x7fffffffffffffffLL)
-#define UINT64_MAX (0xffffffffffffffffLL)
-#else
-#include <stdint.h>
-#endif
-
-#include <pv/sharedPtr.h>
-#include <pv/localStaticLock.h>
-
-namespace epics { namespace pvData { 
-
-/**
- * This is a set of typdefs used by pvData.
- */
-
-/**
- * boolean, i.e. can only have the values {@code false} or {@code true}
- */
-typedef uint8_t     boolean;
-/**
- * A 8 bit signed integer
- */
-typedef int8_t   int8;
-/**
- * A 16 bit signed integer
- */
-typedef int16_t  int16;
-/**
- * A 32 bit signed integer
- */
-typedef int32_t  int32;
-/**
- * A 64 bit signed integer
- */
-typedef int64_t  int64;
-/**
- * A 8 bit unsigned integer
- */
-typedef uint8_t   uint8;
-/**
- * A 16 bit unsigned integer
- */
-typedef uint16_t  uint16;
-/**
- * A 32 bit unsigned integer
- */
-typedef uint32_t uint32;
-/**
- * A 64 bit unsigned integer
- */
-typedef uint64_t uint64;
-
-// float and double are types
-
-/**
- * A string
- */
-typedef std::string String;
-
-/**
- * A boolean array.
- */
-typedef std::vector<uint8> BooleanArray;
-typedef std::tr1::shared_ptr<BooleanArray> BooleanArrayPtr;
-/* get is same is ubyte*/
-typedef std::vector<uint8>::iterator BooleanArray_iterator;
-typedef std::vector<uint8>::const_iterator BooleanArray_const_iterator;
-
-/**
- * A byte array.
- */
-typedef std::vector<int8> ByteArray;
-typedef std::tr1::shared_ptr<ByteArray> ByteArrayPtr;
-inline int8 * get(ByteArray &value)
-{
-    return &value[0];
-}
-inline int8 const * get(ByteArray const &value)
-{
-    return static_cast<int8 const *>(&value[0]);
-}
-inline int8 * get(ByteArrayPtr &value)
-{
-    return get(*value.get());
-}
-inline int8 const * get(ByteArrayPtr const &value)
-{
-    return get(*value.get());
-}
-inline ByteArray & getVector(ByteArrayPtr &value)
-{
-     return *value.get();
-}
-inline ByteArray const & getVector(ByteArrayPtr const &value)
-{
-     return *value.get();
-}
-typedef std::vector<int8>::iterator ByteArray_iterator;
-typedef std::vector<int8>::const_iterator ByteArray_const_iterator;
-
-/**
- * A short array.
- */
-typedef std::vector<int16> ShortArray;
-typedef std::tr1::shared_ptr<ShortArray> ShortArrayPtr;
-inline int16 * get(ShortArray &value)
-{
-    return &value[0];
-}
-inline int16 const * get(ShortArray const &value)
-{
-    return static_cast<int16 const *>(&value[0]);
-}
-inline int16 * get(ShortArrayPtr &value)
-{
-    return get(*value.get());
-}
-inline int16 const * get(ShortArrayPtr const &value)
-{
-    return get(*value.get());
-}
-inline ShortArray & getVector(ShortArrayPtr &value)
-{
-     return *value.get();
-}
-inline ShortArray const & getVector(ShortArrayPtr const &value)
-{
-     return *value.get();
-}
-typedef std::vector<int16>::iterator ShortArray_iterator;
-typedef std::vector<int16>::const_iterator ShortArray_const_iterator;
-
-/**
- * A int array.
- */
-typedef std::vector<int32> IntArray;
-typedef std::tr1::shared_ptr<IntArray> IntArrayPtr;
-inline int32 * get(IntArray &value)
-{
-    return &value[0];
-}
-inline int32 const * get(IntArray const &value)
-{
-    return static_cast<int32 const *>(&value[0]);
-}
-inline int32 * get(IntArrayPtr &value)
-{
-    return get(*value.get());
-}
-inline int32 const * get(IntArrayPtr const &value)
-{
-    return get(*value.get());
-}
-inline IntArray & getVector(IntArrayPtr &value)
-{
-     return *value.get();
-}
-inline IntArray const & getVector(IntArrayPtr const &value)
-{
-     return *value.get();
-}
-typedef std::vector<int32>::iterator IntArray_iterator;
-typedef std::vector<int32>::const_iterator IntArray_const_iterator;
-
-/**
- * A long array.
- */
-typedef std::vector<int64> LongArray;
-typedef std::tr1::shared_ptr<LongArray> LongArrayPtr;
-inline int64 * get(LongArray &value)
-{
-    return &value[0];
-}
-inline int64 const * get(LongArray const &value)
-{
-    return static_cast<int64 const *>(&value[0]);
-}
-inline int64 * get(LongArrayPtr &value)
-{
-    return get(*value.get());
-}
-inline int64 const * get(LongArrayPtr const &value)
-{
-    return get(*value.get());
-}
-inline LongArray & getVector(LongArrayPtr &value)
-{
-     return *value.get();
-}
-inline LongArray const & getVector(LongArrayPtr const &value)
-{
-     return *value.get();
-}
-typedef std::vector<int64>::iterator LongArray_iterator;
-typedef std::vector<int64>::const_iterator LongArray_const_iterator;
-
-/**
- * An unsigned byte array.
- */
-typedef std::vector<uint8> UByteArray;
-typedef std::tr1::shared_ptr<UByteArray> UByteArrayPtr;
-inline uint8 * get(UByteArray &value)
-{
-    return &value[0];
-}
-inline uint8 const * get(UByteArray const &value)
-{
-    return static_cast<uint8 const *>(&value[0]);
-}
-inline uint8 * get(UByteArrayPtr &value)
-{
-    return get(*value.get());
-}
-inline uint8 const * get(UByteArrayPtr const &value)
-{
-    return get(*value.get());
-}
-inline UByteArray & getVector(UByteArrayPtr &value)
-{
-     return *value.get();
-}
-inline UByteArray const & getVector(UByteArrayPtr const &value)
-{
-     return *value.get();
-}
-typedef std::vector<uint8>::iterator UByteArray_iterator;
-typedef std::vector<uint8>::const_iterator UByteArray_const_iterator;
-
-/**
- * An unsigned short array.
- */
-typedef std::vector<uint16> UShortArray;
-typedef std::tr1::shared_ptr<UShortArray> UShortArrayPtr;
-inline uint16 * get(UShortArray &value)
-{
-    return &value[0];
-}
-inline uint16 const * get(UShortArray const &value)
-{
-    return static_cast<uint16 const *>(&value[0]);
-}
-inline uint16 * get(UShortArrayPtr &value)
-{
-    return get(*value.get());
-}
-inline uint16 const * get(UShortArrayPtr const &value)
-{
-    return get(*value.get());
-}
-inline UShortArray & getVector(UShortArrayPtr &value)
-{
-     return *value.get();
-}
-inline UShortArray const & getVector(UShortArrayPtr const &value)
-{
-     return *value.get();
-}
-typedef std::vector<uint16>::iterator UShortArray_iterator;
-typedef std::vector<uint16>::const_iterator UShortArray_const_iterator;
-
-/**
- * An unsigned int array.
- */
-typedef std::vector<uint32> UIntArray;
-typedef std::tr1::shared_ptr<UIntArray> UIntArrayPtr;
-inline uint32 * get(UIntArray &value)
-{
-    return &value[0];
-}
-inline uint32 const * get(UIntArray const &value)
-{
-    return static_cast<uint32 const *>(&value[0]);
-}
-inline uint32 * get(UIntArrayPtr &value)
-{
-    return get(*value.get());
-}
-inline uint32 const * get(UIntArrayPtr const &value)
-{
-    return get(*value.get());
-}
-inline UIntArray & getVector(UIntArrayPtr &value)
-{
-     return *value.get();
-}
-inline UIntArray const & getVector(UIntArrayPtr const &value)
-{
-     return *value.get();
-}
-typedef std::vector<uint32>::iterator UIntArray_iterator;
-typedef std::vector<uint32>::const_iterator UIntArray_const_iterator;
-
-/**
- * An unsigned long array.
- */
-typedef std::vector<uint64> ULongArray;
-typedef std::tr1::shared_ptr<ULongArray> ULongArrayPtr;
-inline uint64 * get(ULongArray &value)
-{
-    return &value[0];
-}
-inline uint64 const * get(ULongArray const &value)
-{
-    return static_cast<uint64 const *>(&value[0]);
-}
-inline uint64 * get(ULongArrayPtr &value)
-{
-    return get(*value.get());
-}
-inline uint64 const * get(ULongArrayPtr const &value)
-{
-    return get(*value.get());
-}
-inline ULongArray & getVector(ULongArrayPtr &value)
-{
-     return *value.get();
-}
-inline ULongArray const & getVector(ULongArrayPtr const &value)
-{
-     return *value.get();
-}
-typedef std::vector<uint64>::iterator ULongArray_iterator;
-typedef std::vector<uint64>::const_iterator ULongArray_const_iterator;
-
-/**
- * A float array.
- */
-typedef std::vector<float> FloatArray;
-typedef std::tr1::shared_ptr<FloatArray> FloatArrayPtr;
-inline float * get(FloatArray &value)
-{
-    return &value[0];
-}
-inline float const * get(FloatArray const &value)
-{
-    return static_cast<float const *>(&value[0]);
-}
-inline float * get(FloatArrayPtr &value)
-{
-    return get(*value.get());
-}
-inline float const * get(FloatArrayPtr const &value)
-{
-    return get(*value.get());
-}
-inline FloatArray & getVector(FloatArrayPtr &value)
-{
-     return *value.get();
-}
-inline FloatArray const & getVector(FloatArrayPtr const &value)
-{
-     return *value.get();
-}
-typedef std::vector<float>::iterator FloatArray_iterator;
-typedef std::vector<float>::const_iterator FloatArray_const_iterator;
-
-/**
- * A double array.
- */
-typedef std::vector<double> DoubleArray;
-typedef std::tr1::shared_ptr<DoubleArray> DoubleArrayPtr;
-inline double * get(DoubleArray &value)
-{
-    return &value[0];
-}
-inline double const * get(DoubleArray const &value)
-{
-    return static_cast<double const *>(&value[0]);
-}
-inline double * get(DoubleArrayPtr &value)
-{
-    return get(*value.get());
-}
-inline double const * get(DoubleArrayPtr const &value)
-{
-    return get(*value.get());
-}
-inline DoubleArray & getVector(DoubleArrayPtr &value)
-{
-     return *value.get();
-}
-inline DoubleArray const & getVector(DoubleArrayPtr const &value)
-{
-     return *value.get();
-}
-typedef std::vector<double>::iterator DoubleArray_iterator;
-typedef std::vector<double>::const_iterator DoubleArray_const_iterator;
-
-/**
- * A string array.
- */
-typedef std::vector<String> StringArray;
-typedef std::tr1::shared_ptr<StringArray> StringArrayPtr;
-inline String * get(StringArray &value)
-{
-    return &value[0];
-}
-inline String const * get(StringArray const &value)
-{
-    return static_cast<String const *>(&value[0]);
-}
-inline String * get(StringArrayPtr &value)
-{
-    return get(*value.get());
-}
-inline String const * get(StringArrayPtr const &value)
-{
-    return get(*value.get());
-}
-inline StringArray & getVector(StringArrayPtr &value)
-{
-     return *value.get();
-}
-inline StringArray const & getVector(StringArrayPtr const &value)
-{
-     return *value.get();
-}
-typedef std::vector<String>::iterator StringArray_iterator;
-typedef std::vector<String>::const_iterator StringArray_const_iterator;
-
-/**
- * A convenience definition for toString methods
- */
-typedef String * StringBuilder;
-
-}}
-#endif  /* PVTYPE_H */
-
-
-

pvDataApp/pv/standardField.h

@@ -1,130 +0,0 @@
-/* standardField.h */
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
- * Author - Marty Kraimer
- */
-/**
- *  @author mrk
- */
-#ifndef STANDARDFIELD_H
-#define STANDARDFIELD_H
-#include <string>
-#include <stdexcept>
-#include <pv/pvIntrospect.h>
-
-namespace epics { namespace pvData { 
-
-/**
- * Standard Fields is a class or creating or sharing Field objects for standard fields.
- * For each type of standard object two methods are defined:s
- *      one with no properties and with properties
- * The property field is a comma separated string of property names of the following:
- *    alarm, timeStamp, display, control, and valueAlarm.
- * An example is "alarm,timeStamp,valueAlarm".
- * The method with properties creates a structure with fields named fieldName
- *     and each of the property names.
- * Each property field is a structure defining the property.
- * The details about each property is given in the section named "Property".
- * For example the call:
- * {@code
-   StructureConstPtr example = standardField->scalar(
-        String("value"),
-        pvDouble,
-        String("value,alarm,timeStamp")); 
- * }
- * Will result in a Field definition that has the form: {@code
-  structure example
-    double value
-    structure alarm
-        int severity
-        int status
-        string message
-   structure timeStamp
-        long secondsPastEpoch
-        int  nanoSeconds
-        int userTag
- * }
- * In addition there are methods that create each of the property structures,
- * i.e. the methods named: alarm, .... enumeratedAlarm."
- *
- * StandardField is a singleton class. The class is accessed via the statement: {@code
-    StandardField *standardField = getStandardField();
- * }
- */
-
-class StandardField;
-typedef std::tr1::shared_ptr<StandardField> StandardFieldPtr;
-
-class StandardField {
-public:
-    static StandardFieldPtr getStandardField();
-    ~StandardField();
-    StructureConstPtr scalar(ScalarType type,String const & properties);
-    StructureConstPtr scalarArray(ScalarType elementType, String const & properties);
-    StructureConstPtr structureArray(StructureConstPtr const & structure,String const & properties);
-    StructureConstPtr enumerated();
-    StructureConstPtr enumerated(String const & properties);
-    StructureConstPtr alarm();
-    StructureConstPtr timeStamp();
-    StructureConstPtr display();
-    StructureConstPtr control();
-    StructureConstPtr booleanAlarm();
-    StructureConstPtr byteAlarm();
-    StructureConstPtr ubyteAlarm();
-    StructureConstPtr shortAlarm();
-    StructureConstPtr ushortAlarm();
-    StructureConstPtr intAlarm();
-    StructureConstPtr uintAlarm();
-    StructureConstPtr longAlarm();
-    StructureConstPtr ulongAlarm();
-    StructureConstPtr floatAlarm();
-    StructureConstPtr doubleAlarm();
-    StructureConstPtr enumeratedAlarm();
-private:
-    StandardField();
-    void init();
-    StructureConstPtr createProperties(String id,FieldConstPtr field,String properties);
-    FieldCreatePtr fieldCreate;
-    String notImplemented;
-    String valueFieldName;
-    StructureConstPtr alarmField;
-    StructureConstPtr timeStampField;
-    StructureConstPtr displayField;
-    StructureConstPtr controlField;
-    StructureConstPtr booleanAlarmField;
-    StructureConstPtr byteAlarmField;
-    StructureConstPtr shortAlarmField;
-    StructureConstPtr intAlarmField;
-    StructureConstPtr longAlarmField;
-    StructureConstPtr ubyteAlarmField;
-    StructureConstPtr ushortAlarmField;
-    StructureConstPtr uintAlarmField;
-    StructureConstPtr ulongAlarmField;
-    StructureConstPtr floatAlarmField;
-    StructureConstPtr doubleAlarmField;
-    StructureConstPtr enumeratedAlarmField;
-    void createAlarm();
-    void createTimeStamp();
-    void createDisplay();
-    void createControl();
-    void createBooleanAlarm();
-    void createByteAlarm();
-    void createShortAlarm();
-    void createIntAlarm();
-    void createLongAlarm();
-    void createUByteAlarm();
-    void createUShortAlarm();
-    void createUIntAlarm();
-    void createULongAlarm();
-    void createFloatAlarm();
-    void createDoubleAlarm();
-    void createEnumeratedAlarm();
-    friend StandardFieldPtr getStandardField();
-};
-
-extern StandardFieldPtr getStandardField();
-    
-}}
-#endif  /* STANDARDFIELD_H */

pvDataApp/pv/standardPVField.h

@@ -1,54 +0,0 @@
-/* standardPVField.h */
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
- */
-/**
- *  @author mrk
- */
-#ifndef STANDARDPVFIELD_H
-#define STANDARDPVFIELD_H
-#include <string>
-#include <stdexcept>
-#include <pv/pvIntrospect.h>
-#include <pv/pvData.h>
-#include <pv/standardField.h>
-
-namespace epics { namespace pvData { 
-/**
- * StandardPVField is a class or creating standard data fields.
- * Like class StandardField it has two forms of the methods which create a fields:
- *      one without properties and one with properties.
- * The properties are some combination of alarm, timeStamp, control, display, and valueAlarm.
- * Just like StandardField there are methods to create the standard properties.
- *
- * StandardPVField is a singleton class. The class is accessed via the statement: {@code
-    StandardPVField *standardPVField = getStandardPVField();
- * }
- */
-
-class StandardPVField;
-typedef std::tr1::shared_ptr<StandardPVField> StandardPVFieldPtr;
-
-class StandardPVField : private NoDefaultMethods {
-public:
-    static StandardPVFieldPtr getStandardPVField();
-    ~StandardPVField();
-    PVStructurePtr scalar(ScalarType type,String const & properties);
-    PVStructurePtr scalarArray(ScalarType elementType, String const & properties);
-    PVStructurePtr structureArray(StructureConstPtr const &structure,String const & properties);
-    PVStructurePtr enumerated(StringArray const &choices);
-    PVStructurePtr enumerated(StringArray const &choices, String const & properties);
-private:
-    StandardPVField();
-    StandardFieldPtr standardField;
-    FieldCreatePtr fieldCreate;
-    PVDataCreatePtr pvDataCreate;
-    String notImplemented;
-};
-
-extern StandardPVFieldPtr getStandardPVField();
-    
-}}
-#endif  /* STANDARDPVFIELD_H */

pvDataCPP.config

@@ -0,0 +1 @@
+// ADD PREDEFINED MACROS HERE!

pvDataCPP.creator

@@ -0,0 +1 @@
+[General]

pvDataCPP.files

@@ -0,0 +1,211 @@
+configure/CONFIG
+configure/CONFIG_SITE
+configure/RELEASE
+configure/RELEASE.local
+configure/RULES
+configure/RULES.ioc
+configure/RULES_DIRS
+configure/RULES_TOP
+documentation/pvDataCPP.html
+documentation/pvDataCPP_20120927.html
+documentation/pvDataCPP_20121001.html
+documentation/pvDataCPP_20121026.html
+documentation/pvDataCPP_20121212.html
+jenkins/cloudbees_build
+pvDataApp/factory/Compare.cpp
+pvDataApp/factory/Convert.cpp
+pvDataApp/factory/factory.h
+pvDataApp/factory/FieldCreateFactory.cpp
+pvDataApp/factory/PVArray.cpp
+pvDataApp/factory/PVAuxInfoImpl.cpp
+pvDataApp/factory/PVDataCreateFactory.cpp
+pvDataApp/factory/PVDataCreateFactory.cpp.orig
+pvDataApp/factory/PVField.cpp
+pvDataApp/factory/PVScalar.cpp
+pvDataApp/factory/PVScalarArray.cpp
+pvDataApp/factory/PVStructure.cpp
+pvDataApp/factory/PVStructureArray.cpp
+pvDataApp/factory/StandardField.cpp
+pvDataApp/factory/StandardPVField.cpp
+pvDataApp/factory/TypeFunc.cpp
+pvDataApp/misc/bitSet.cpp
+pvDataApp/misc/bitSet.h
+pvDataApp/misc/byteBuffer.cpp
+pvDataApp/misc/byteBuffer.h
+pvDataApp/misc/destroyable.h
+pvDataApp/misc/epicsException.cpp
+pvDataApp/misc/epicsException.h
+pvDataApp/misc/event.cpp
+pvDataApp/misc/event.h
+pvDataApp/misc/executor.cpp
+pvDataApp/misc/executor.h
+pvDataApp/misc/localStaticLock.cpp
+pvDataApp/misc/localStaticLock.h
+pvDataApp/misc/localStaticLock.h.orig
+pvDataApp/misc/lock.h
+pvDataApp/misc/messageQueue.cpp
+pvDataApp/misc/messageQueue.h
+pvDataApp/misc/noDefaultMethods.h
+pvDataApp/misc/queue.h
+pvDataApp/misc/requester.cpp
+pvDataApp/misc/requester.h
+pvDataApp/misc/requester.h.orig
+pvDataApp/misc/serialize.h
+pvDataApp/misc/serializeHelper.cpp
+pvDataApp/misc/serializeHelper.h
+pvDataApp/misc/sharedPtr.h
+pvDataApp/misc/status.cpp
+pvDataApp/misc/status.h
+pvDataApp/misc/thread.h
+pvDataApp/misc/timeFunction.cpp
+pvDataApp/misc/timeFunction.h
+pvDataApp/misc/timer.cpp
+pvDataApp/misc/timer.h
+pvDataApp/monitor/monitor.h
+pvDataApp/O.linux-x86_64/alarm.d
+pvDataApp/O.linux-x86_64/bitSet.d
+pvDataApp/O.linux-x86_64/bitSetUtil.d
+pvDataApp/O.linux-x86_64/byteBuffer.d
+pvDataApp/O.linux-x86_64/Compare.d
+pvDataApp/O.linux-x86_64/Convert.d
+pvDataApp/O.linux-x86_64/epicsException.d
+pvDataApp/O.linux-x86_64/event.d
+pvDataApp/O.linux-x86_64/executor.d
+pvDataApp/O.linux-x86_64/FieldCreateFactory.d
+pvDataApp/O.linux-x86_64/libpvData.a
+pvDataApp/O.linux-x86_64/libpvData.so
+pvDataApp/O.linux-x86_64/localStaticLock.d
+pvDataApp/O.linux-x86_64/messageQueue.d
+pvDataApp/O.linux-x86_64/pvAlarm.d
+pvDataApp/O.linux-x86_64/PVArray.d
+pvDataApp/O.linux-x86_64/PVAuxInfoImpl.d
+pvDataApp/O.linux-x86_64/pvControl.d
+pvDataApp/O.linux-x86_64/PVDataCreateFactory.d
+pvDataApp/O.linux-x86_64/pvDisplay.d
+pvDataApp/O.linux-x86_64/pvEnumerated.d
+pvDataApp/O.linux-x86_64/PVField.d
+pvDataApp/O.linux-x86_64/PVScalar.d
+pvDataApp/O.linux-x86_64/PVScalarArray.d
+pvDataApp/O.linux-x86_64/PVStructure.d
+pvDataApp/O.linux-x86_64/PVStructureArray.d
+pvDataApp/O.linux-x86_64/pvTimeStamp.d
+pvDataApp/O.linux-x86_64/requester.d
+pvDataApp/O.linux-x86_64/serializeHelper.d
+pvDataApp/O.linux-x86_64/StandardField.d
+pvDataApp/O.linux-x86_64/StandardPVField.d
+pvDataApp/O.linux-x86_64/status.d
+pvDataApp/O.linux-x86_64/timeFunction.d
+pvDataApp/O.linux-x86_64/timer.d
+pvDataApp/O.linux-x86_64/timeStamp.d
+pvDataApp/O.linux-x86_64/TypeFunc.d
+pvDataApp/property/alarm.cpp
+pvDataApp/property/alarm.h
+pvDataApp/property/alarm.h.orig
+pvDataApp/property/control.h
+pvDataApp/property/display.h
+pvDataApp/property/pvAlarm.cpp
+pvDataApp/property/pvAlarm.h
+pvDataApp/property/pvControl.cpp
+pvDataApp/property/pvControl.h
+pvDataApp/property/pvDisplay.cpp
+pvDataApp/property/pvDisplay.h
+pvDataApp/property/pvEnumerated.cpp
+pvDataApp/property/pvEnumerated.h
+pvDataApp/property/pvTimeStamp.cpp
+pvDataApp/property/pvTimeStamp.h
+pvDataApp/property/timeStamp.cpp
+pvDataApp/property/timeStamp.h
+pvDataApp/property/timeStamp.h.orig
+pvDataApp/pv/convert.h
+pvDataApp/pv/convert.h.orig
+pvDataApp/pv/pvData.h
+pvDataApp/pv/pvData.h.orig
+pvDataApp/pv/pvIntrospect.h
+pvDataApp/pv/pvIntrospect.h.orig
+pvDataApp/pv/pvType.h
+pvDataApp/pv/standardField.h
+pvDataApp/pv/standardField.h.orig
+pvDataApp/pv/standardPVField.h
+pvDataApp/pv/standardPVField.h.orig
+pvDataApp/pvMisc/bitSetUtil.cpp
+pvDataApp/pvMisc/bitSetUtil.h
+testApp/capi/O.linux-x86_64/libtestc.a
+testApp/capi/O.linux-x86_64/libtestc.so
+testApp/capi/O.linux-x86_64/testc.d
+testApp/capi/testc.cpp
+testApp/capi/testc.py
+testApp/mb/O.linux-x86_64/mb_test
+testApp/mb/O.linux-x86_64/mb_test.d
+testApp/misc/O.linux-x86_64/testBaseException
+testApp/misc/O.linux-x86_64/testBaseException.d
+testApp/misc/O.linux-x86_64/testBitSet
+testApp/misc/O.linux-x86_64/testBitSet.d
+testApp/misc/O.linux-x86_64/testByteBuffer
+testApp/misc/O.linux-x86_64/testByteBuffer.d
+testApp/misc/O.linux-x86_64/testByteOrder
+testApp/misc/O.linux-x86_64/testByteOrder.d
+testApp/misc/O.linux-x86_64/testMessageQueue
+testApp/misc/O.linux-x86_64/testMessageQueue.d
+testApp/misc/O.linux-x86_64/testQueue
+testApp/misc/O.linux-x86_64/testQueue.d
+testApp/misc/O.linux-x86_64/testSerialization
+testApp/misc/O.linux-x86_64/testSerialization.d
+testApp/misc/O.linux-x86_64/testThread
+testApp/misc/O.linux-x86_64/testThread.d
+testApp/misc/O.linux-x86_64/testTimer
+testApp/misc/O.linux-x86_64/testTimer.d
+testApp/misc/O.linux-x86_64/testTimeStamp
+testApp/misc/O.linux-x86_64/testTimeStamp.d
+testApp/misc/testBaseException.cpp
+testApp/misc/testBitSet.cpp
+testApp/misc/testByteBuffer.cpp
+testApp/misc/testByteOrder.cpp
+testApp/misc/testMessageQueue.cpp
+testApp/misc/testQueue.cpp
+testApp/misc/testSerialization.cpp
+testApp/misc/testThread.cpp
+testApp/misc/testTimer.cpp
+testApp/misc/testTimeStamp.cpp
+testApp/monitor/O.linux-x86_64/testMonitor
+testApp/monitor/O.linux-x86_64/testMonitor.d
+testApp/monitor/testMonitor.cpp
+testApp/property/O.linux-x86_64/testProperty
+testApp/property/O.linux-x86_64/testProperty.d
+testApp/property/testProperty.cpp
+testApp/pv/O.linux-x86_64/testConvert
+testApp/pv/O.linux-x86_64/testConvert.d
+testApp/pv/O.linux-x86_64/testIntrospect
+testApp/pv/O.linux-x86_64/testIntrospect.d
+testApp/pv/O.linux-x86_64/testOperators
+testApp/pv/O.linux-x86_64/testOperators.d
+testApp/pv/O.linux-x86_64/testPVAppend
+testApp/pv/O.linux-x86_64/testPVAppend.d
+testApp/pv/O.linux-x86_64/testPVAuxInfo
+testApp/pv/O.linux-x86_64/testPVAuxInfo.d
+testApp/pv/O.linux-x86_64/testPVData
+testApp/pv/O.linux-x86_64/testPVData.d
+testApp/pv/O.linux-x86_64/testPVScalarArray
+testApp/pv/O.linux-x86_64/testPVScalarArray.d
+testApp/pv/O.linux-x86_64/testPVStructureArray
+testApp/pv/O.linux-x86_64/testPVStructureArray.d
+testApp/pv/O.linux-x86_64/testPVType
+testApp/pv/O.linux-x86_64/testPVType.d
+testApp/pv/O.linux-x86_64/testStandardField
+testApp/pv/O.linux-x86_64/testStandardField.d
+testApp/pv/O.linux-x86_64/testStandardPVField
+testApp/pv/O.linux-x86_64/testStandardPVField.d
+testApp/pv/testConvert.cpp
+testApp/pv/testIntrospect.cpp
+testApp/pv/testOperators.cpp
+testApp/pv/testPVAppend.cpp
+testApp/pv/testPVAuxInfo.cpp
+testApp/pv/testPVData.cpp
+testApp/pv/testPVScalarArray.cpp
+testApp/pv/testPVStructureArray.cpp
+testApp/pv/testPVType.cpp
+testApp/pv/testStandardField.cpp
+testApp/pv/testStandardPVField.cpp
+COPYRIGHT
+Doxyfile
+LICENSE
+README.html

pvDataCPP.includes

@@ -0,0 +1,6 @@
+/home/msekoranja/epicsV4/pvDataCPP/pvDataApp/factory
+/home/msekoranja/epicsV4/pvDataCPP/pvDataApp/misc
+/home/msekoranja/epicsV4/pvDataCPP/pvDataApp/monitor
+/home/msekoranja/epicsV4/pvDataCPP/pvDataApp/property
+/home/msekoranja/epicsV4/pvDataCPP/pvDataApp/pv
+/home/msekoranja/epicsV4/pvDataCPP/pvDataApp/pvMisc

src/Makefile

@@ -0,0 +1,24 @@
+# Makefile for the pvData library
+
+TOP = ..
+include $(TOP)/configure/CONFIG
+
+INSTALL_INCLUDE = $(INSTALL_LOCATION)/include/pv
+USR_INCLUDES += -I$(INSTALL_LOCATION)/include
+
+PVDATA_SRC = $(TOP)/src
+
+include $(PVDATA_SRC)/misc/Makefile
+include $(PVDATA_SRC)/pv/Makefile
+include $(PVDATA_SRC)/factory/Makefile
+include $(PVDATA_SRC)/property/Makefile
+include $(PVDATA_SRC)/copy/Makefile
+include $(PVDATA_SRC)/pvMisc/Makefile
+include $(PVDATA_SRC)/monitor/Makefile
+
+LIBRARY = pvData
+
+pvData_LIBS += Com
+
+include $(TOP)/configure/RULES
+

src/copy/Makefile

@@ -0,0 +1,9 @@
+# This is a Makefile fragment, see ../Makefile
+
+SRC_DIRS += $(PVDATA_SRC)/copy
+
+INC += createRequest.h
+INC += pvCopy.h
+
+LIBSRCS += createRequest.cpp
+LIBSRCS += pvCopy.cpp

src/copy/createRequest.cpp

@@ -0,0 +1,533 @@
+/**
+ * Copyright - See the COPYRIGHT that is included with this distribution.
+ * pvAccessCPP is distributed subject to a Software License Agreement found
+ * in file LICENSE that is included with this distribution.
+ */
+
+#include <string>
+#include <sstream>
+
+#define epicsExportSharedSymbols
+
+#include <pv/pvData.h>
+#include <pv/lock.h>
+#include <pv/createRequest.h>
+
+using namespace epics::pvData;
+using std::tr1::static_pointer_cast;
+using std::cout;
+using std::endl;
+using std::string;
+
+namespace epics { namespace pvData {
+
+static PVDataCreatePtr pvDataCreate = getPVDataCreate();
+static FieldCreatePtr fieldCreate = getFieldCreate();
+
+class CreateRequestImpl : public CreateRequest {
+private:
+
+    void removeBlanks(string& str)
+    {
+        while(true) {
+            string::size_type pos = str.find_first_of(' ');
+            if(pos==string::npos) return;
+            str.erase(pos,1);
+        }
+    }
+
+    size_t findMatchingBrace(string& request, size_t index, int numOpen) {
+        size_t openBrace = request.find('{', index+1);
+        size_t closeBrace = request.find('}', index+1);
+        if(openBrace == string::npos && closeBrace == string::npos){
+             message = request + " missing }";
+             return string::npos;
+        }
+        if (openBrace != string::npos && openBrace!=0) {
+            if(openBrace<closeBrace) return findMatchingBrace(request,openBrace,numOpen+1);
+            if(numOpen==1) return closeBrace;
+            return findMatchingBrace(request,closeBrace,numOpen-1);
+        }
+        if(numOpen==1) return closeBrace;
+        return findMatchingBrace(request,closeBrace,numOpen-1);
+    }
+
+    size_t findMatchingBracket(string& request, size_t index) {
+        for(size_t i=index+1; i< request.size(); ++i) {
+            if(request[i] == ']') {
+                if(i==index+1) {
+                     message = request + " illegal []";
+                     return string::npos;
+                }
+                return i;
+            }
+        }
+         message = request + " missing ]";
+         return string::npos;
+    }
+
+    size_t findEndField(string& request) {
+        size_t ind = 0;
+        size_t maxind = request.size() -1;
+        while(true) {
+             if(request[ind]==',') return ind;
+             if(request[ind]=='[') {
+                 size_t closeBracket = findMatchingBracket(request,ind);
+                 if(closeBracket==string::npos) return closeBracket;
+                 ind = closeBracket;
+                 continue;
+             }
+             if(request[ind]=='{') {
+                 size_t closeBrace = findMatchingBrace(request,ind,1);
+                 if(closeBrace==string::npos) return closeBrace;
+                 if(ind>=request.size()) return request.size();
+                 ind = closeBrace;
+                 continue;
+             }
+             if(ind>=maxind) break;
+             ++ind;
+        }
+        return request.size();
+    }
+
+    std::vector<string> split(string const & commaSeparatedList) {
+        string::size_type numValues = 1;
+        string::size_type index=0;
+        while(true) {
+            string::size_type pos = commaSeparatedList.find(',',index);
+            if(pos==string::npos) break;
+            numValues++;
+            index = pos +1;
+	}
+        std::vector<string> valueList(numValues,"");
+        index=0;
+        for(size_t i=0; i<numValues; i++) {
+            size_t pos = commaSeparatedList.find(',',index);
+            string value = commaSeparatedList.substr(index,pos-index);
+            valueList[i] = value;
+            index = pos +1;
+        }
+        return valueList;
+    }
+
+    StructureConstPtr createRequestOptions(
+        string request)
+    {
+        if(request.length()<=1) return StructureConstPtr();
+        std::vector<string> items = split(request);
+        size_t nitems = items.size();
+        StringArray fieldNames(nitems);
+        FieldConstPtrArray fields(nitems);
+        for(size_t j=0; j<nitems; j++) {
+            string item = items[j];
+            size_t equals = item.find('=');
+            if(equals==string::npos || equals==0) {
+                message = item + " illegal option";
+                StructureConstPtr xxx;
+                return xxx;
+            }
+            fieldNames[j] = item.substr(0,equals);
+            fields[j] = fieldCreate->createScalar(pvString);
+        }
+        return fieldCreate->createStructure(fieldNames,fields);
+    }
+
+    void initRequestOptions(
+        PVStructurePtr const & pvParent,
+        string request)
+    {
+        if(request.length()<=1) return;
+        std::vector<string> items = split(request);
+        size_t nitems = items.size();
+        for(size_t j=0; j<nitems; j++) {
+            string item = items[j];
+            size_t equals = item.find('=');
+            string name = item.substr(0,equals);
+            string value = item.substr(equals+1);
+            PVStringPtr pvValue = pvParent->getSubField<PVString>(name);
+            pvValue->put(value);
+        }
+    }
+
+    StructureConstPtr createSubFieldRequest(
+        StructureConstPtr parent,
+        string request)
+    {
+        if(request.length()<=0) return parent;
+        size_t period = request.find('.');
+        size_t openBracket = request.find('[');
+        size_t openBrace = request.find('{');
+
+        // name only
+        if(period==string::npos
+        && openBracket==string::npos
+        && openBrace==string::npos)
+        {
+            StructureConstPtr subField = fieldCreate->createStructure();
+            parent = fieldCreate->appendField(parent,request,subField);
+            return parent;
+        }
+
+        // period is first
+        if(period!=string::npos
+        && (openBracket==string::npos || period<openBracket)
+        && (openBrace==string::npos || period<openBrace) )
+        {
+            string fieldName = request.substr(0,period);
+            StructureConstPtr subField = fieldCreate->createStructure();
+            subField = createSubFieldRequest(subField,request.substr(period+1));
+            if(subField==NULL) return subField;
+            parent = fieldCreate->appendField(parent,fieldName,subField);
+            return parent;
+        }
+
+        // brace before [ or .
+        if(openBrace!=string::npos
+        && (openBracket==string::npos || openBrace<openBracket) )
+        {
+            string fieldName = request.substr(0,openBrace);
+            size_t closeBrace = findMatchingBrace(request,openBrace,1);
+            if(closeBrace==string::npos) return StructureConstPtr();
+            size_t nextChar = closeBrace+1;
+            if(nextChar>= request.size()) nextChar = string::npos;
+            if(nextChar!=string::npos) {
+                message = request + " syntax error " + request[nextChar] + " after } illegal";
+                return StructureConstPtr();
+            }
+            StructureConstPtr subField = fieldCreate->createStructure();
+            string subRequest = request.substr(openBrace+1,closeBrace-openBrace-1);
+            subField = createFieldRequest(subField,subRequest);
+            if(subField==NULL) return subField;
+            parent = fieldCreate->appendField(parent,fieldName,subField);
+            return parent;
+        }
+
+        // [ is before brace or .
+        if(openBracket!=string::npos
+        && (openBrace==string::npos || openBracket<openBrace) )
+        {
+            string fieldName = request.substr(0,openBracket);
+            size_t closeBracket = findMatchingBracket(request,openBracket);
+            if(closeBracket==string::npos) return StructureConstPtr();
+            size_t nextChar = closeBracket+1;
+            if(nextChar>= request.size()) nextChar = string::npos;
+            if(nextChar==string::npos) {
+                StringArray fieldNames(1);
+                FieldConstPtrArray fields(1);
+                fieldNames[0] = "_options";
+                fields[0] = createRequestOptions(
+                    request.substr(openBracket+1,closeBracket-openBracket-1));
+                StructureConstPtr subField = fieldCreate->createStructure(fieldNames,fields);
+                parent = fieldCreate->appendField(parent,fieldName,subField);
+                return parent;
+            }
+            if(request[nextChar]=='.') {
+                StructureConstPtr subField = fieldCreate->createStructure();
+                subField = createSubFieldRequest(subField,request.substr(nextChar+1));
+                if(subField==NULL) return StructureConstPtr();
+                if(subField->getNumberFields()!=1) {
+                    message = request + " logic error createSubFieldRequest openBracket subField";
+                    return StructureConstPtr();
+                }
+                StringArray fieldNames(2);
+                FieldConstPtrArray fields(2);
+                fieldNames[0] = "_options";
+                fields[0] = createRequestOptions(
+                    request.substr(openBracket+1,closeBracket-openBracket-1));
+                fieldNames[1] = subField->getFieldNames()[0];
+                fields[1] = subField;
+                subField = fieldCreate->createStructure(fieldNames,fields);
+                parent = fieldCreate->appendField(parent,fieldName,subField);
+                return parent;
+            }
+            if(request[nextChar]=='{') {
+                size_t closeBrace = findMatchingBrace(request,openBrace,1);
+                if(closeBrace==string::npos) return StructureConstPtr();
+                StructureConstPtr subField = fieldCreate->createStructure();
+                string subRequest = request.substr(openBrace+1,closeBrace-openBrace-1);
+                subField = createFieldRequest(subField,subRequest);
+                if(subField==NULL) return subField;
+                size_t numSub = subField->getNumberFields();
+                StringArray fieldNames(numSub + 1);
+                FieldConstPtrArray fields(numSub+1);
+                fieldNames[0] = "_options";
+                fields[0] = createRequestOptions(
+                    request.substr(openBracket+1,closeBracket-openBracket-1));
+                StringArray subNames = subField->getFieldNames();
+                FieldConstPtrArray subFields = subField->getFields();
+                for(size_t i=0; i<numSub; ++i) {
+                    fieldNames[i+1] = subNames[i];
+                    fields[i+1] = subFields[i];
+                }
+                subField = fieldCreate->appendFields(parent,fieldNames,fields);
+                parent = fieldCreate->appendField(parent,fieldName,subField);
+                return parent;
+            }
+        }
+        message = request + " logic error createSubFieldRequest";
+        return StructureConstPtr();
+    }
+
+
+    StructureConstPtr createFieldRequest(
+        StructureConstPtr parent,
+        string request)
+    {
+        size_t length = request.length();
+        if(length<=0) return parent;
+        size_t end = findEndField(request);
+        if(end==string::npos) return StructureConstPtr();
+        StringArray fieldNames;
+        FieldConstPtrArray fields;
+        StructureConstPtr subField = fieldCreate->createStructure();
+        subField = createSubFieldRequest(subField,request.substr(0,end));
+        if(subField==NULL) return subField;
+        fieldNames.push_back(subField->getFieldNames()[0]);
+        fields.push_back(subField->getFields()[0]);
+        if(end!=length) {
+            if(request[end]!=',') {
+                 message = request;
+                 message += " expected char ";
+                 message += length;
+                 message += " to be ,";
+                 return StructureConstPtr();
+            }
+            StructureConstPtr nextSubField = fieldCreate->createStructure();
+            nextSubField = createFieldRequest(nextSubField,request.substr(end+1));
+            if(nextSubField==NULL) return nextSubField;
+            size_t numFields = nextSubField->getNumberFields();
+            StringArray subNames = nextSubField->getFieldNames();
+            FieldConstPtrArray subFields = nextSubField->getFields();
+            for(size_t i=0; i<numFields; ++i) {
+                fieldNames.push_back(subNames[i]);
+                fields.push_back(subFields[i]);
+            }
+        }
+        parent = fieldCreate->appendFields(parent,fieldNames,fields);
+        return parent;
+    }
+
+    void initSubFieldOptions(
+        PVStructurePtr const & pvParent,
+        string request)
+    {
+        if(request.length()<=0) return;
+        size_t period = request.find('.');
+        size_t openBracket = request.find('[');
+        size_t openBrace = request.find('{');
+        // name only
+        if(period==string::npos
+        && openBracket==string::npos
+        && openBrace==string::npos)
+        {
+             return;
+        }
+
+        // period is first
+        if(period!=string::npos
+        && (openBracket==string::npos || period<openBracket)
+        && (openBrace==string::npos || period<openBrace) )
+        {
+            PVStructurePtr pvSubField = static_pointer_cast<PVStructure>(pvParent->getPVFields()[0]);
+            initSubFieldOptions(pvSubField,request.substr(period+1));
+            return;
+        }
+
+        // brace before [ or .
+        if(openBrace!=string::npos
+        && (openBracket==string::npos || openBrace<openBracket) )
+        {
+            PVStructurePtr pvSubField = static_pointer_cast<PVStructure>(pvParent->getPVFields()[0]);
+            size_t closeBrace = findMatchingBrace(request,openBrace,1);
+            string subRequest = request.substr(openBrace+1,closeBrace-openBrace-1);
+            initFieldOptions(pvSubField,subRequest);
+            return;
+        }
+        PVStructurePtr pvOptions = pvParent->getSubField<PVStructure>("_options");
+        if(pvOptions==NULL) throw std::logic_error("initSubFieldOptions pvOptions NULL");
+        size_t closeBracket = findMatchingBracket(request,openBracket);
+        initRequestOptions(pvOptions,request.substr(openBracket+1,closeBracket-openBracket-1));
+        size_t nextChar = closeBracket+1;
+        if(nextChar>= request.size()) nextChar = string::npos;
+        if(nextChar==string::npos) return;
+        if(request[nextChar]=='.') {
+            PVStructurePtr pvSubField = static_pointer_cast<PVStructure>(pvParent->getPVFields()[1]);
+            initSubFieldOptions(pvSubField,request.substr(nextChar+1));
+            return;
+        }
+        if(request[nextChar]!='{') throw std::logic_error("initSubFieldOptions request[nextChar]!='{'");
+        size_t closeBrace = findMatchingBrace(request,openBrace,1);
+        const PVFieldPtrArray &pvFields = pvParent->getPVFields();
+        string subRequest = request.substr(openBrace+1,closeBrace-openBrace-1);
+        for(size_t i=1; i<pvFields.size(); ++i) {
+             PVStructurePtr pvSubField = static_pointer_cast<PVStructure>(pvFields[i]);
+             size_t comma = subRequest.find(',');
+             initSubFieldOptions(pvSubField, subRequest.substr(0,comma-1));
+             subRequest = subRequest.substr(comma+1);
+        }
+    }
+
+    void initFieldOptions(
+        PVStructurePtr const & pvParent,
+        string request)
+    {
+        if(request.find('[')==string::npos) return;
+        size_t num = pvParent->getStructure()->getNumberFields();
+        if(num==0) return;
+        if(num==1) {
+             initSubFieldOptions(pvParent,request);
+             return;
+        }
+        size_t end = findEndField(request);
+        size_t start = 0;
+        for(size_t i=0; i<num; ++i) {
+            PVStructurePtr pvSub = static_pointer_cast<PVStructure>(pvParent->getPVFields()[i]);
+            string subRequest = request.substr(start, end - start);
+            initSubFieldOptions(pvSub,subRequest);
+            if(i==num-1) break;
+            start = end +1;
+            string xxx = request.substr(start);
+            end += findEndField(xxx) + 1;
+        }
+    }
+
+
+public:
+
+    virtual PVStructure::shared_pointer createRequest(
+        string const & crequest)
+    {
+    	string request = crequest;
+        StructureConstPtr topStructure = fieldCreate->createStructure();
+
+        if (!request.empty()) removeBlanks(request);
+        if (request.empty())
+        {
+            PVFieldPtrArray pvFields;
+            StringArray fieldNames;
+            return pvDataCreate->createPVStructure(fieldNames,pvFields);
+        }
+        size_t offsetRecord = request.find("record[");
+        size_t offsetField = request.find("field(");
+        size_t offsetPutField = request.find("putField(");
+        size_t offsetGetField = request.find("getField(");
+        if(offsetRecord==string::npos
+        && offsetField==string::npos
+        && offsetPutField==string::npos
+        && offsetGetField==string::npos)
+        {
+             request = "field(" + crequest + ")";
+             offsetField = request.find("field(");
+        }
+        if (offsetRecord != string::npos) {
+            size_t openBracket = request.find('[', offsetRecord);
+            size_t closeBracket = request.find(']', openBracket);
+            if(closeBracket == string::npos) {
+                message = request.substr(offsetRecord)
+                    + " record[ does not have matching ]";
+                return PVStructurePtr();
+            }
+            StructureConstPtr structure = createRequestOptions(
+                request.substr(openBracket+1,closeBracket-openBracket-1));
+            if(structure==NULL)
+            {
+                 return PVStructurePtr();
+            }
+            topStructure = fieldCreate->appendField(topStructure,"record",structure);
+        }
+        if (offsetField != string::npos) {
+            size_t openBrace = request.find('(', offsetField);
+            size_t closeBrace = request.find(')', openBrace);
+            if(closeBrace == string::npos) {
+                message = request.substr(offsetField)
+                    + " field( does not have matching )";
+                return PVStructurePtr();
+            }
+            StructureConstPtr structure = fieldCreate->createStructure();
+            structure = createFieldRequest(structure,request.substr(openBrace+1,closeBrace-openBrace-1));
+            if(structure==NULL)
+            {
+                return PVStructurePtr();
+            }
+            topStructure = fieldCreate->appendField(topStructure,"field",structure);
+        }
+        if (offsetPutField != string::npos) {
+            size_t openBrace = request.find('(', offsetPutField);
+            size_t closeBrace = request.find(')', openBrace);
+            if(closeBrace == string::npos) {
+                message =  request.substr(offsetField)
+                    + " putField( does not have matching )";
+                return PVStructurePtr();
+            }
+            StructureConstPtr structure = fieldCreate->createStructure();
+            structure = createFieldRequest(structure,request.substr(openBrace+1,closeBrace-openBrace-1));
+            if(structure==NULL)
+            {
+                return PVStructurePtr();
+            }
+            topStructure = fieldCreate->appendField(topStructure,"putField",structure);
+        }
+        if (offsetGetField != string::npos) {
+            size_t openBrace = request.find('(', offsetGetField);
+            size_t closeBrace = request.find(')', openBrace);
+            if(closeBrace == string::npos) {
+                message = request.substr(offsetField)
+                    + " getField( does not have matching )";
+                return PVStructurePtr();
+            }
+            StructureConstPtr structure = fieldCreate->createStructure();
+            structure = createFieldRequest(structure,request.substr(openBrace+1,closeBrace-openBrace-1));
+            if(structure==NULL)
+            {
+                return PVStructurePtr();
+            }
+            topStructure = fieldCreate->appendField(topStructure,"getField",structure);
+        }
+        PVStructurePtr pvStructure = pvDataCreate->createPVStructure(topStructure);
+        if (offsetRecord != string::npos) {
+            size_t openBracket = request.find('[', offsetRecord);
+            size_t closeBracket = request.find(']', openBracket);
+            initRequestOptions(
+                pvStructure->getSubField<PVStructure>("record"),
+                request.substr(openBracket+1,closeBracket-openBracket-1));
+        }
+        if (offsetField != string::npos) {
+            size_t openParam = request.find('(', offsetField);
+            size_t closeParam = request.find(')', openParam);
+            PVStructurePtr pvSub = pvStructure->getSubField<PVStructure>("field");
+            if(pvSub->getStructure()->getNumberFields()==1) {
+                pvSub = static_pointer_cast<PVStructure>(pvSub->getPVFields()[0]);
+            }
+            if(pvSub!=NULL) initFieldOptions(pvSub,request.substr(openParam+1,closeParam-openParam-1));
+        }
+        if (offsetPutField != string::npos) {
+            size_t openParam = request.find('(', offsetPutField);
+            size_t closeParam = request.find(')', openParam);
+            PVStructurePtr pvSub = pvStructure->getSubField<PVStructure>("putField");
+            if(pvSub->getStructure()->getNumberFields()==1) {
+                pvSub = static_pointer_cast<PVStructure>(pvSub->getPVFields()[0]);
+            }
+            if(pvSub!=NULL) initFieldOptions(pvSub,request.substr(openParam+1,closeParam-openParam-1));
+        }
+        if (offsetGetField != string::npos) {
+            size_t openParam = request.find('(', offsetGetField);
+            size_t closeParam = request.find(')', openParam);
+            PVStructurePtr pvSub = pvStructure->getSubField<PVStructure>("getField");
+            if(pvSub->getStructure()->getNumberFields()==1) {
+                pvSub = static_pointer_cast<PVStructure>(pvSub->getPVFields()[0]);
+            }
+            if(pvSub!=NULL) initFieldOptions(pvSub,request.substr(openParam+1,closeParam-openParam-1));
+        }
+        return pvStructure;
+    }
+
+};
+
+CreateRequest::shared_pointer CreateRequest::create()
+{
+    CreateRequest::shared_pointer createRequest(new CreateRequestImpl());
+    return createRequest;
+}
+
+}}
+

src/copy/createRequest.h

@@ -0,0 +1,56 @@
+/*createRequest.h*/
+/**
+ * Copyright - See the COPYRIGHT that is included with this distribution.
+ * pvDataCPP is distributed subject to a Software License Agreement found
+ * in file LICENSE that is included with this distribution.
+ */
+
+#ifndef CREATEREQUEST_H
+#define CREATEREQUEST_H
+#include <string>
+#include <sstream>
+
+#include <pv/pvData.h>
+#include <pv/lock.h>
+
+#include <shareLib.h>
+
+namespace epics { namespace pvData {
+
+/**
+ * Class to create pvRequest structures to pass to pvAccess Channel methods.
+ */
+class epicsShareClass CreateRequest {
+    public:
+    POINTER_DEFINITIONS(CreateRequest);
+    /**
+     * Create s new instance of CreateRequest
+     * @returns A shared pointer to the new instance.
+     */
+    static CreateRequest::shared_pointer create();
+    virtual ~CreateRequest() {};
+    /**
+    * Create a request structure for the create calls in Channel.
+    * See the package overview documentation for details.
+    * @param request The field request. See the package overview documentation for details.
+    * @param requester The requester;
+    * @return The request PVStructure if a valid request was given.
+    * If a NULL PVStructure is returned then getMessage will return
+    * the reason.
+    */
+    virtual PVStructure::shared_pointer createRequest(std::string const & request) = 0;
+    /**
+     * Get the error message of createRequest returns NULL
+     * return the error message
+     */
+    std::string getMessage() {return message;}
+protected:
+    CreateRequest() {}
+    std::string message;
+};
+
+
+}}
+
+#endif /* CREATEREQUEST_H */
+

src/copy/pvCopy.cpp

@@ -0,0 +1,650 @@
+/* pvCopy.cpp */
+/**
+ * Copyright - See the COPYRIGHT that is included with this distribution.
+ * EPICS pvData is distributed subject to a Software License Agreement found
+ * in file LICENSE that is included with this distribution.
+ */
+/**
+ * @author Marty Kraimer
+ * @date 2013.04
+ */
+#include <string>
+#include <stdexcept>
+#include <memory>
+#include <sstream>
+
+#define epicsExportSharedSymbols
+
+#include <pv/thread.h>
+
+#include <pv/pvCopy.h>
+#include <pv/convert.h>
+
+using std::tr1::static_pointer_cast;
+using std::tr1::dynamic_pointer_cast;
+using std::string;
+using std::size_t;
+using std::cout;
+using std::endl;
+
+namespace epics { namespace pvData { 
+
+static PVCopyPtr NULLPVCopy;
+static FieldConstPtr NULLField;
+static StructureConstPtr NULLStructure;
+static PVStructurePtr NULLPVStructure;
+static CopyNodePtr NULLCopyNode;
+static CopyMasterNodePtr NULLCopyMasterNode;
+
+struct CopyNode {
+    CopyNode()
+    : isStructure(false),
+      structureOffset(0),
+      nfields(0)
+    {}
+    bool isStructure;
+    size_t structureOffset; // In the copy
+    size_t nfields;
+    PVStructurePtr options;
+};
+    
+struct CopyMasterNode : public CopyNode{
+    PVFieldPtr masterPVField;
+};
+
+typedef std::vector<CopyNodePtr> CopyNodePtrArray;
+typedef std::tr1::shared_ptr<CopyNodePtrArray> CopyNodePtrArrayPtr;
+    
+struct CopyStructureNode : public  CopyNode {
+    CopyNodePtrArrayPtr nodes;
+};
+
+PVCopyPtr PVCopy::create(
+    PVStructurePtr const &pvMaster, 
+    PVStructurePtr const &pvRequest, 
+    string const & structureName)
+{
+    PVStructurePtr pvStructure(pvRequest);
+    if(structureName.size()>0) {
+        if(pvRequest->getStructure()->getNumberFields()>0) {
+            pvStructure = pvRequest->getStructureField(structureName);
+            if(pvStructure.get()==NULL) return NULLPVCopy;
+        }
+    } else if(pvStructure->getSubField("field")!=NULL) {
+        pvStructure = pvRequest->getStructureField("field");
+    }
+    PVCopyPtr pvCopy = PVCopyPtr(new PVCopy(pvMaster));
+    bool result = pvCopy->init(pvStructure);
+    if(!result) pvCopy.reset();
+    return pvCopy;
+}
+
+PVCopy::PVCopy(
+    PVStructurePtr const &pvMaster)
+: pvMaster(pvMaster)
+{
+}
+
+void PVCopy::destroy()
+{
+    headNode.reset();
+}
+
+PVStructurePtr PVCopy::getPVMaster()
+{
+    return pvMaster;
+}
+
+void PVCopy::traverseMaster(CopyNodePtr const &innode, PVCopyTraverseMasterCallbackPtr const & callback)
+{
+    CopyNodePtr node = innode;
+    if(!node->isStructure) {
+        CopyMasterNodePtr masterNode = static_pointer_cast<CopyMasterNode>(node);
+        callback->nextMasterPVField(masterNode->masterPVField);
+        return;
+    }
+    CopyStructureNodePtr structNode = static_pointer_cast<CopyStructureNode>(node);
+    CopyNodePtrArrayPtr nodes = structNode->nodes;
+    for(size_t i=0; i< nodes->size(); i++) {
+        node = (*nodes)[i];
+        traverseMaster(node,callback);
+    }
+}
+
+StructureConstPtr PVCopy::getStructure()
+{
+    return structure;
+}
+
+PVStructurePtr PVCopy::createPVStructure()
+{
+    if(cacheInitStructure.get()!=NULL) {
+        PVStructurePtr save = cacheInitStructure;
+        cacheInitStructure.reset();
+        return save;
+    }
+    PVStructurePtr pvStructure = 
+        getPVDataCreate()->createPVStructure(structure);
+    return pvStructure;
+}
+
+PVStructurePtr PVCopy::getOptions(std::size_t fieldOffset)
+{
+    if(fieldOffset==0) return headNode->options;
+    CopyNodePtr node = headNode;
+    while(true) {
+        if(!node->isStructure) {
+            if(node->structureOffset==fieldOffset) return node->options;
+            return NULLPVStructure;
+        }
+        CopyStructureNodePtr structNode = static_pointer_cast<CopyStructureNode>(node);
+        CopyNodePtrArrayPtr nodes = structNode->nodes;
+        boolean okToContinue = false;
+        for(size_t i=0; i< nodes->size(); i++) {
+            node = (*nodes)[i];
+            size_t soff = node->structureOffset;
+            if(fieldOffset>=soff && fieldOffset<soff+node->nfields) {
+                if(fieldOffset==soff) return node->options;
+                if(!node->isStructure) {
+                    return NULLPVStructure;
+                }
+                okToContinue = true;
+                break;
+            }
+        }
+        if(okToContinue) continue;
+        throw std::invalid_argument("fieldOffset not valid");
+    }
+}
+
+size_t PVCopy::getCopyOffset(PVFieldPtr const &masterPVField)
+{
+    if(masterPVField->getFieldOffset()==0) return 0;
+    if(!headNode->isStructure) {
+        CopyMasterNodePtr masterNode = static_pointer_cast<CopyMasterNode>(headNode);
+        if((masterNode->masterPVField.get())==masterPVField.get()) {
+             return headNode->structureOffset;
+        }
+        PVStructure * parent = masterPVField->getParent();
+        size_t offsetParent = parent->getFieldOffset();
+        size_t off = masterPVField->getFieldOffset();
+        size_t offdiff = off -offsetParent;
+        if(offdiff<masterNode->nfields) return headNode->structureOffset + offdiff;
+        return string::npos;
+    }
+    CopyStructureNodePtr node = static_pointer_cast<CopyStructureNode>(headNode);
+    CopyMasterNodePtr masterNode = getCopyOffset(node,masterPVField);
+    if(masterNode.get()!=NULL) return masterNode->structureOffset;
+    return string::npos;
+}
+
+size_t PVCopy::getCopyOffset(
+    PVStructurePtr const  &masterPVStructure,
+    PVFieldPtr const  &masterPVField)
+{
+    CopyMasterNodePtr masterNode;
+    if(!headNode->isStructure) {
+        masterNode = static_pointer_cast<CopyMasterNode>(headNode);
+        if(masterNode->masterPVField.get()!=masterPVStructure.get()) return string::npos;
+    } else {
+        CopyStructureNodePtr node = static_pointer_cast<CopyStructureNode>(headNode);
+        masterNode = getCopyOffset(node,masterPVField);
+    }
+    if(masterNode.get()==NULL) return string::npos;
+    size_t diff = masterPVField->getFieldOffset()
+        - masterPVStructure->getFieldOffset();
+    return masterNode->structureOffset + diff;
+}
+
+PVFieldPtr PVCopy::getMasterPVField(size_t structureOffset)
+{
+    CopyMasterNodePtr masterNode;
+    if(!headNode->isStructure) {
+        masterNode = static_pointer_cast<CopyMasterNode>(headNode);
+    } else {
+        CopyStructureNodePtr node = static_pointer_cast<CopyStructureNode>(headNode);
+        masterNode = getMasterNode(node,structureOffset);
+    }
+    if(masterNode.get()==NULL) {
+        throw std::invalid_argument(
+            "PVCopy::getMasterPVField: setstructureOffset not valid");
+    }
+    size_t diff = structureOffset - masterNode->structureOffset;
+    PVFieldPtr pvMasterField = masterNode->masterPVField;
+    if(diff==0) return pvMasterField;
+    PVStructurePtr pvStructure
+        = static_pointer_cast<PVStructure>(pvMasterField);
+    return pvStructure->getSubField(
+        pvMasterField->getFieldOffset() + diff);
+}
+
+void PVCopy::initCopy(
+    PVStructurePtr const  &copyPVStructure,
+    BitSetPtr const  &bitSet)
+{
+    bitSet->clear();
+    bitSet->set(0);
+    updateCopyFromBitSet(copyPVStructure,bitSet);
+}
+
+void PVCopy::updateCopySetBitSet(
+    PVStructurePtr const  &copyPVStructure,
+    BitSetPtr const  &bitSet)
+{
+    if(headNode->isStructure) {
+        CopyStructureNodePtr node = static_pointer_cast<CopyStructureNode>(headNode);
+        updateStructureNodeSetBitSet(copyPVStructure,node,bitSet);
+    } else {
+        CopyMasterNodePtr masterNode = static_pointer_cast<CopyMasterNode>(headNode);
+        PVFieldPtr pvMasterField= masterNode->masterPVField;
+        PVFieldPtr copyPVField = copyPVStructure;
+        PVFieldPtr pvField = pvMasterField;
+        if(pvField->getField()->getType()==epics::pvData::structure) {
+            updateSubFieldSetBitSet(copyPVField,pvMasterField,bitSet);
+            return;
+        }
+        ConvertPtr convert = getConvert();
+        bool isEqual = convert->equals(copyPVField,pvField);
+        if(!isEqual) {
+            convert->copy(pvField, copyPVField);
+            bitSet->set(copyPVField->getFieldOffset());
+        }
+    }
+}
+
+void PVCopy::updateCopyFromBitSet(
+    PVStructurePtr const  &copyPVStructure,
+    BitSetPtr const  &bitSet)
+{
+    bool doAll = bitSet->get(0);
+    if(headNode->isStructure) {
+        CopyStructureNodePtr node = static_pointer_cast<CopyStructureNode>(headNode);
+        updateStructureNodeFromBitSet(copyPVStructure,node,bitSet,true,doAll);
+    } else {
+        CopyMasterNodePtr masterNode = static_pointer_cast<CopyMasterNode>(headNode);
+        updateSubFieldFromBitSet(copyPVStructure, masterNode->masterPVField,bitSet, true,doAll);
+    }
+}
+
+void PVCopy::updateMaster(
+    PVStructurePtr const  &copyPVStructure,
+    BitSetPtr const  &bitSet)
+{
+    bool doAll = bitSet->get(0);
+    if(headNode->isStructure) {
+        CopyStructureNodePtr node =
+            static_pointer_cast<CopyStructureNode>(headNode);
+        updateStructureNodeFromBitSet(
+            copyPVStructure,node,bitSet,false,doAll);
+    } else {
+        CopyMasterNodePtr masterNode =
+            static_pointer_cast<CopyMasterNode>(headNode);
+        updateSubFieldFromBitSet( copyPVStructure,masterNode->masterPVField,bitSet,false,doAll);
+    }
+}
+
+string PVCopy::dump()
+{
+    string builder;
+    dump(&builder,headNode,0);
+    return builder;
+}
+
+void PVCopy::dump(string *builder,CopyNodePtr const &node,int indentLevel)
+{
+    getConvert()->newLine(builder,indentLevel);
+    std::stringstream ss;
+    ss << (node->isStructure ? "structureNode" : "masterNode");
+    ss << " structureOffset " << node->structureOffset;
+    ss << " nfields " << node->nfields;
+    *builder +=  ss.str();
+    PVStructurePtr options = node->options;
+    if(options.get()!=NULL) {
+        getConvert()->newLine(builder,indentLevel +1);
+        
+        // TODO !!! ugly
+        std::ostringstream oss;
+        oss << *options;
+        *builder += oss.str();
+        
+        getConvert()->newLine(builder,indentLevel);
+    }
+    if(!node->isStructure) {
+        CopyMasterNodePtr masterNode = static_pointer_cast<CopyMasterNode>(node);
+        string name = masterNode->masterPVField->getFullName();
+        *builder += " masterField " + name;
+        return;
+    }
+    CopyStructureNodePtr structureNode =
+        static_pointer_cast<CopyStructureNode>(node);
+    CopyNodePtrArrayPtr nodes = structureNode->nodes;
+    for(size_t i=0; i<nodes->size(); ++i) {
+        if((*nodes)[i].get()==NULL) {
+            getConvert()->newLine(builder,indentLevel +1);
+            ss.str("");
+            ss << "node[" << i << "] is null";
+            *builder += ss.str();
+            continue;
+        }
+        dump(builder,(*nodes)[i],indentLevel+1);
+    }
+}
+
+bool PVCopy::init(epics::pvData::PVStructurePtr const &pvRequest)
+{
+    PVStructurePtr pvMasterStructure = pvMaster;
+    size_t len = pvRequest->getPVFields().size();
+    bool entireMaster = false;
+    if(len==string::npos) entireMaster = true;
+    if(len==0) entireMaster = true;
+    PVStructurePtr pvOptions;
+    if(len==1 && pvRequest->getSubField("_options")!=NULL) {
+        pvOptions = pvRequest->getStructureField("_options");
+    }
+    if(entireMaster) {
+        structure = pvMasterStructure->getStructure();
+        CopyMasterNodePtr masterNode(new CopyMasterNode());
+        headNode = masterNode;
+        masterNode->options = pvOptions;
+        masterNode->isStructure = false;
+        masterNode->structureOffset = 0;
+        masterNode->masterPVField = pvMasterStructure;
+        masterNode->nfields = pvMasterStructure->getNumberFields();
+        return true;
+    }
+    structure = createStructure(pvMasterStructure,pvRequest);
+    if(structure==NULL) return false;
+    cacheInitStructure = createPVStructure();
+    headNode = createStructureNodes(
+        pvMaster,
+        pvRequest,
+        cacheInitStructure);
+    return true;
+}
+
+string PVCopy::dump(
+    string const &value,
+    CopyNodePtr const &node,
+    int indentLevel)
+{
+    throw std::logic_error(string("Not Implemented"));
+}
+
+
+StructureConstPtr PVCopy::createStructure(
+    PVStructurePtr const &pvMaster,
+    PVStructurePtr const  &pvFromRequest)
+{
+    if(pvFromRequest->getStructure()->getNumberFields()==0) {
+        return pvMaster->getStructure();
+    }
+    PVFieldPtrArray const &pvFromRequestFields = pvFromRequest->getPVFields();
+    StringArray const &fromRequestFieldNames = pvFromRequest->getStructure()->getFieldNames();
+    size_t length = pvFromRequestFields.size();
+    if(length==0) return NULLStructure;
+    FieldConstPtrArray fields; fields.reserve(length);
+    StringArray fieldNames; fields.reserve(length);
+    for(size_t i=0; i<length; ++i) {
+        string const &fieldName = fromRequestFieldNames[i];
+        PVFieldPtr pvMasterField = pvMaster->getSubField(fieldName);
+        if(pvMasterField==NULL) continue;
+        FieldConstPtr field = pvMasterField->getField();
+        if(field->getType()==epics::pvData::structure) {
+            PVStructurePtr pvRequestStructure = static_pointer_cast<PVStructure>(
+                pvFromRequestFields[i]);
+            if(pvRequestStructure->getNumberFields()>0) {
+                 StringArray const &names = pvRequestStructure->getStructure()->
+                     getFieldNames();
+                 size_t num = names.size();
+                 if(num>0 && names[0].compare("_options")==0) --num;
+                 if(num>0) {
+                     if(pvMasterField->getField()->getType()!=epics::pvData::structure) continue;
+                     fieldNames.push_back(fieldName);
+                     fields.push_back(createStructure(
+                         static_pointer_cast<PVStructure>(pvMasterField),
+                         pvRequestStructure));
+                     continue;
+                 }
+            }
+        }
+        fieldNames.push_back(fieldName);
+        fields.push_back(field);
+    }
+    size_t numsubfields = fields.size();
+    if(numsubfields==0) return NULLStructure;
+    return getFieldCreate()->createStructure(fieldNames, fields);
+}
+
+CopyNodePtr PVCopy::createStructureNodes(
+    PVStructurePtr const &pvMasterStructure,
+    PVStructurePtr const &pvFromRequest,
+    PVStructurePtr const &pvFromCopy)
+{
+    PVFieldPtrArray const & copyPVFields = pvFromCopy->getPVFields();
+    PVStructurePtr pvOptions;
+    PVFieldPtr pvField = pvFromRequest->getSubField("_options");
+    if(pvField!=NULL) pvOptions = static_pointer_cast<PVStructure>(pvField);
+    size_t number = copyPVFields.size();
+    CopyNodePtrArrayPtr nodes(new CopyNodePtrArray());
+    nodes->reserve(number);
+    for(size_t i=0; i<number; i++) {
+        PVFieldPtr copyPVField = copyPVFields[i];
+        string fieldName = copyPVField->getFieldName();
+        
+        PVStructurePtr requestPVStructure = static_pointer_cast<PVStructure>(
+              pvFromRequest->getSubField(fieldName));
+        PVStructurePtr pvSubFieldOptions;
+        PVFieldPtr pvField = requestPVStructure->getSubField("_options");
+        if(pvField!=NULL) pvSubFieldOptions = static_pointer_cast<PVStructure>(pvField);
+        PVFieldPtr pvMasterField;
+        PVFieldPtrArray const & pvMasterFields = pvMasterStructure->getPVFields();
+        for(size_t j=0; i<pvMasterFields.size(); j++ ) {
+            if(pvMasterFields[j]->getFieldName().compare(fieldName)==0) {
+                pvMasterField = pvMasterFields[j];
+                break;
+            }
+        }
+        size_t numberRequest = requestPVStructure->getPVFields().size();
+        if(pvSubFieldOptions!=NULL) numberRequest--;
+        if(numberRequest>0) {
+            nodes->push_back(createStructureNodes(
+                static_pointer_cast<PVStructure>(pvMasterField),
+                requestPVStructure,
+                static_pointer_cast<PVStructure>(copyPVField)));
+            continue;
+        }
+        CopyMasterNodePtr masterNode(new CopyMasterNode());
+        masterNode->options = pvSubFieldOptions;
+        masterNode->isStructure = false;
+        masterNode->masterPVField = pvMasterField;
+        masterNode->nfields = copyPVField->getNumberFields();
+        masterNode->structureOffset = copyPVField->getFieldOffset();
+        nodes->push_back(masterNode);
+    }
+    CopyStructureNodePtr structureNode(new CopyStructureNode());
+    structureNode->isStructure = true;
+    structureNode->nodes = nodes;
+    structureNode->structureOffset = pvFromCopy->getFieldOffset();
+    structureNode->nfields = pvFromCopy->getNumberFields();
+    structureNode->options = pvOptions;
+    return structureNode;
+}
+
+void PVCopy::updateStructureNodeSetBitSet(
+    PVStructurePtr const &pvCopy,
+    CopyStructureNodePtr const &structureNode,
+    epics::pvData::BitSetPtr const &bitSet)
+{
+    for(size_t i=0; i<structureNode->nodes->size(); i++) {
+        CopyNodePtr node = (*structureNode->nodes)[i];
+        PVFieldPtr pvField = pvCopy->getSubField(node->structureOffset);
+        if(node->isStructure) {
+            PVStructurePtr xxx = static_pointer_cast<PVStructure>(pvField);
+            CopyStructureNodePtr yyy =
+                static_pointer_cast<CopyStructureNode>(node);
+            updateStructureNodeSetBitSet(xxx,yyy,bitSet); 
+        } else {
+            CopyMasterNodePtr masterNode =
+                static_pointer_cast<CopyMasterNode>(node);
+            updateSubFieldSetBitSet(pvField,masterNode->masterPVField,bitSet);
+        }
+    }
+}
+
+void PVCopy::updateSubFieldSetBitSet(
+    PVFieldPtr const &pvCopy,
+    PVFieldPtr const &pvMaster,
+    BitSetPtr const &bitSet)
+{
+    FieldConstPtr field = pvCopy->getField();
+    Type type = field->getType();
+    if(type!=epics::pvData::structure) {
+        ConvertPtr convert = getConvert();
+        bool isEqual = convert->equals(pvCopy,pvMaster);
+    	if(isEqual) {
+    	    if(type==structureArray) {
+    	        // always act as though a change occurred.
+    	        // Note that array elements are shared.
+		bitSet->set(pvCopy->getFieldOffset());
+    	    }
+    	}
+        if(isEqual) return;
+        convert->copy(pvMaster, pvCopy);
+        bitSet->set(pvCopy->getFieldOffset());
+        return;
+    }
+    PVStructurePtr pvCopyStructure = static_pointer_cast<PVStructure>(pvCopy);
+    PVFieldPtrArray const & pvCopyFields = pvCopyStructure->getPVFields();
+    PVStructurePtr pvMasterStructure =
+        static_pointer_cast<PVStructure>(pvMaster);
+    PVFieldPtrArray const & pvMasterFields =
+        pvMasterStructure->getPVFields();
+    size_t length = pvCopyFields.size();
+    for(size_t i=0; i<length; i++) {
+        updateSubFieldSetBitSet(pvCopyFields[i],pvMasterFields[i],bitSet);
+    }
+}
+
+void PVCopy::updateStructureNodeFromBitSet(
+    PVStructurePtr const &pvCopy,
+    CopyStructureNodePtr const &structureNode,
+    BitSetPtr const &bitSet,
+    bool toCopy,
+    bool doAll)
+{
+    size_t offset = structureNode->structureOffset;
+    if(!doAll) {
+        size_t nextSet = bitSet->nextSetBit(offset);
+        if(nextSet==string::npos) return;
+    }
+    if(offset>=pvCopy->getNextFieldOffset()) return;
+    if(!doAll) doAll = bitSet->get(offset);
+    CopyNodePtrArrayPtr  nodes = structureNode->nodes;
+    for(size_t i=0; i<nodes->size(); i++) {
+        CopyNodePtr node = (*nodes)[i];
+        PVFieldPtr pvField = pvCopy->getSubField(node->structureOffset);
+        if(node->isStructure) {
+            PVStructurePtr xxx = static_pointer_cast<PVStructure>(pvField);
+            CopyStructureNodePtr subStructureNode =
+                static_pointer_cast<CopyStructureNode>(node);
+            updateStructureNodeFromBitSet(
+                 xxx,subStructureNode,bitSet,toCopy,doAll);
+        } else {
+            CopyMasterNodePtr masterNode =
+                static_pointer_cast<CopyMasterNode>(node);
+            updateSubFieldFromBitSet(
+                pvField,masterNode->masterPVField,bitSet,toCopy,doAll);
+        }
+    }
+}
+
+void PVCopy::updateSubFieldFromBitSet(
+    PVFieldPtr const &pvCopy,
+    PVFieldPtr const &pvMasterField,
+    BitSetPtr const &bitSet,
+    bool toCopy,
+    bool doAll)
+{
+    if(!doAll) {
+        doAll = bitSet->get(pvCopy->getFieldOffset());
+    }
+    if(!doAll) {
+        size_t offset = pvCopy->getFieldOffset();
+        size_t nextSet = bitSet->nextSetBit(offset);
+        if(nextSet==string::npos) return;
+        if(nextSet>=pvCopy->getNextFieldOffset()) return;
+    }
+    ConvertPtr convert = getConvert();
+    if(pvCopy->getField()->getType()==epics::pvData::structure) {
+        PVStructurePtr pvCopyStructure =
+            static_pointer_cast<PVStructure>(pvCopy);
+        PVFieldPtrArray const & pvCopyFields = pvCopyStructure->getPVFields();
+        if(pvMasterField->getField()->getType() !=epics::pvData::structure)
+        {
+            throw std::logic_error(string("Logic error"));
+        }
+        PVStructurePtr pvMasterStructure = 
+            static_pointer_cast<PVStructure>(pvMasterField);
+        PVFieldPtrArray const & pvMasterFields =
+            pvMasterStructure->getPVFields();
+        for(size_t i=0; i<pvCopyFields.size(); i++) {
+            updateSubFieldFromBitSet(
+                pvCopyFields[i],
+                pvMasterFields[i],
+                bitSet,toCopy,doAll);
+        }
+    } else {
+        if(toCopy) {
+            convert->copy(pvMasterField, pvCopy);
+        } else {
+            convert->copy(pvCopy, pvMasterField);
+        }
+    }
+}
+
+CopyMasterNodePtr PVCopy::getCopyOffset(
+        CopyStructureNodePtr const &structureNode,
+        PVFieldPtr const &masterPVField)
+{
+    size_t offset = masterPVField->getFieldOffset();
+    CopyNodePtrArrayPtr nodes = structureNode->nodes;
+    for(size_t i=0; i< nodes->size(); i++) {
+        CopyNodePtr node = (*nodes)[i];
+        if(!node->isStructure) {
+            CopyMasterNodePtr masterNode =
+                static_pointer_cast<CopyMasterNode>(node);
+            size_t off = masterNode->masterPVField->getFieldOffset();
+            size_t nextOffset = masterNode->masterPVField->getNextFieldOffset(); 
+            if(offset>= off && offset<nextOffset) return masterNode;
+        } else {
+            CopyStructureNodePtr subNode =
+                static_pointer_cast<CopyStructureNode>(node);
+            CopyMasterNodePtr masterNode =
+                getCopyOffset(subNode,masterPVField);
+            if(masterNode.get()!=NULL) return masterNode;
+        }
+    }
+    return NULLCopyMasterNode;
+}
+
+CopyMasterNodePtr PVCopy::getMasterNode(
+        CopyStructureNodePtr const &structureNode,
+        std::size_t structureOffset)
+{
+    CopyNodePtrArrayPtr nodes = structureNode->nodes;
+    for(size_t i=0; i< nodes->size(); i++) {
+        CopyNodePtr node = (*nodes)[i];
+        if(structureOffset>=(node->structureOffset + node->nfields)) continue;
+        if(!node->isStructure) {
+            CopyMasterNodePtr masterNode =
+                static_pointer_cast<CopyMasterNode>(node);
+            return masterNode;
+        }
+        CopyStructureNodePtr subNode =
+            static_pointer_cast<CopyStructureNode>(node);
+        return  getMasterNode(subNode,structureOffset);
+    }
+    return NULLCopyMasterNode;
+}
+
+}}

src/copy/pvCopy.h

@@ -0,0 +1,230 @@
+/* pvCopy.h */
+/**
+ * Copyright - See the COPYRIGHT that is included with this distribution.
+ * EPICS pvData is distributed subject to a Software License Agreement found
+ * in file LICENSE that is included with this distribution.
+ */
+/**
+ * @author Marty Kraimer
+ * @date 2013.04
+ */
+#ifndef PVCOPY_H
+#define PVCOPY_H
+#include <string>
+#include <stdexcept>
+#include <memory>
+
+#include <shareLib.h>
+
+#include <pv/pvData.h>
+#include <pv/bitSet.h>
+
+namespace epics { namespace pvData{ 
+
+class PVCopyTraverseMasterCallback;
+typedef std::tr1::shared_ptr<PVCopyTraverseMasterCallback> PVCopyTraverseMasterCallbackPtr;
+
+/**
+ * Callback for traversing master structure
+ * Must be implemented by code that creates pvCopy.
+ */
+class epicsShareClass PVCopyTraverseMasterCallback
+{
+public:
+    POINTER_DEFINITIONS(PVCopyTraverseMasterCallback);
+    virtual ~PVCopyTraverseMasterCallback() {}
+    /**
+     * Called once for each field in master.
+     * @param pvField The field in master.
+     */
+    virtual void nextMasterPVField(epics::pvData::PVFieldPtr const &pvField) = 0;
+};
+
+
+class PVCopy;
+typedef std::tr1::shared_ptr<PVCopy> PVCopyPtr;
+
+struct CopyNode;
+typedef std::tr1::shared_ptr<CopyNode> CopyNodePtr;
+struct CopyMasterNode;
+typedef std::tr1::shared_ptr<CopyMasterNode> CopyMasterNodePtr;
+struct CopyStructureNode;
+typedef std::tr1::shared_ptr<CopyStructureNode> CopyStructureNodePtr;
+
+
+/**
+ * Class that manages one or more PVStructures that holds an arbitrary subset of the fields
+ * in another PVStructure called master.
+ */
+class epicsShareClass PVCopy : 
+    public std::tr1::enable_shared_from_this<PVCopy>
+{
+public:
+    POINTER_DEFINITIONS(PVCopy);
+    /**
+     * Create a new pvCopy
+     * @param pvMaster The top level sructure for which a copy of
+     * an arbritary subset of the fields in master will be created and managed.
+     * @param pvRequest Selects the set of subfields desired and options for each field.
+     * @param structureName The name for the top level of any PVStructure created.
+     */
+    static PVCopyPtr create(
+        PVStructurePtr const &pvMaster,
+        PVStructurePtr const &pvRequest,
+        std::string const & structureName);
+    virtual ~PVCopy(){}
+    virtual void destroy();
+    /**
+     * Get the top level structure of master
+     * @returns The master top level structure.
+     * This should not be modified.
+     */
+    PVStructurePtr getPVMaster();
+    /**
+     * Traverse all the fields in master.
+     * @param callback This is called for each field on master.
+     */
+    void traverseMaster(PVCopyTraverseMasterCallbackPtr const & callback)
+    {
+        traverseMaster(headNode,callback);
+    }
+    /**
+     * Get the introspection interface for a PVStructure for e copy.
+     */
+    StructureConstPtr getStructure();
+    /**
+     * Create a copy instance. Monitors keep a queue of monitor elements.
+     * Since each element needs a PVStructure, multiple top level structures will be created.
+     */
+    PVStructurePtr createPVStructure();
+    /**
+     * Given a field in pvMaster. return the offset in copy for the same field.
+     * A value of std::string::npos means that the copy does not have this field.
+     * @param masterPVField The field in master.
+     */
+    std::size_t getCopyOffset(PVFieldPtr const  &masterPVField);
+    /**
+     * Given a field in pvMaster. return the offset in copy for the same field.
+     * A value of std::string::npos means that the copy does not have this field.
+     * @param masterPVStructure A structure in master that has masterPVField.
+     * @param masterPVField The field in master.
+     */
+    std::size_t getCopyOffset(
+        PVStructurePtr const  &masterPVStructure,
+        PVFieldPtr const  &masterPVField);
+    /**
+     * Given a offset in the copy get the corresponding field in pvMaster.
+     * @param offset The offset in the copy.
+     */
+    PVFieldPtr getMasterPVField(std::size_t structureOffset);
+    /**
+     * Initialize the fields in copyPVStructure by giving each field
+     * the value from the corresponding field in pvMaster.
+     * bitSet will be set to show that all fields are changed.
+     * @param copyPVStructure A copy top level structure.
+     * @param bitSet A bitSet for copyPVStructure.
+     */
+    void initCopy(
+        PVStructurePtr const  &copyPVStructure,
+        BitSetPtr const  &bitSet);
+    /**
+     * Set all fields in copyPVStructure to the value of the corresponding field in pvMaster.
+     * Each field that is changed has it's corresponding bit set in bitSet.
+     * @param copyPVStructure A copy top level structure.
+     * @param bitSet A bitSet for copyPVStructure.
+     */
+    void updateCopySetBitSet(
+        PVStructurePtr const  &copyPVStructure,
+        BitSetPtr const  &bitSet);
+    /**
+     * For each set bit in bitSet
+     * set the field in copyPVStructure to the value of the corrseponding field in pvMaster.
+     * @param copyPVStructure A copy top level structure.
+     * @param bitSet A bitSet for copyPVStructure.
+     */
+    void updateCopyFromBitSet(
+        PVStructurePtr const  &copyPVStructure,
+        BitSetPtr const  &bitSet);
+    /**
+     * For each set bit in bitSet
+     * set the field in pvMaster to the value of the corrseponding field in copyPVStructure
+     * @param copyPVStructure A copy top level structure.
+     * @param bitSet A bitSet for copyPVStructure.
+     */
+    void updateMaster(
+        PVStructurePtr const  &copyPVStructure,
+        BitSetPtr const  &bitSet);
+    /**
+     * Get the options for the field at the specified offset.
+     * @param offset the offset in copy.
+     * @returns A NULL is returned if no options were specified for the field.
+     * If options were specified,PVStructurePtr is a structures
+     *  with a set of PVString subfields that specify name,value pairs.s
+     *  name is the subField name and value is the subField value.
+     */
+    PVStructurePtr getOptions(std::size_t fieldOffset);
+    /**
+     * For debugging.
+     */
+    std::string dump();
+private:
+    void dump(
+        std::string *builder,
+        CopyNodePtr const &node,
+        int indentLevel);
+    PVCopyPtr getPtrSelf()
+    {
+        return shared_from_this();
+    }
+    void traverseMaster(CopyNodePtr const &node, PVCopyTraverseMasterCallbackPtr const & callback);
+
+    PVStructurePtr pvMaster;
+    StructureConstPtr structure;
+    CopyNodePtr headNode;
+    PVStructurePtr cacheInitStructure;
+    PVCopy(PVStructurePtr const &pvMaster);
+    friend class PVCopyMonitor;
+    bool init(PVStructurePtr const &pvRequest);
+    std::string dump(
+        std::string const &value,
+        CopyNodePtr const &node,
+        int indentLevel);
+    StructureConstPtr createStructure(
+        PVStructurePtr const &pvMaster,
+        PVStructurePtr const &pvFromRequest);
+    CopyNodePtr createStructureNodes(
+        PVStructurePtr const &pvMasterStructure,
+        PVStructurePtr const &pvFromRequest,
+        PVStructurePtr const &pvFromField);
+    void updateStructureNodeSetBitSet(
+        PVStructurePtr const &pvCopy,
+        CopyStructureNodePtr const &structureNode,
+        BitSetPtr const &bitSet);
+    void updateSubFieldSetBitSet(
+        PVFieldPtr const &pvCopy,
+        PVFieldPtr const &pvMaster,
+        BitSetPtr const &bitSet);
+    void updateStructureNodeFromBitSet(
+        PVStructurePtr const &pvCopy,
+        CopyStructureNodePtr const &structureNode,
+        BitSetPtr const &bitSet,
+        bool toCopy,
+        bool doAll);
+    void updateSubFieldFromBitSet(
+        PVFieldPtr const &pvCopy,
+        PVFieldPtr const &pvMasterField,
+        BitSetPtr const &bitSet,
+        bool toCopy,
+        bool doAll);
+    CopyMasterNodePtr getCopyOffset(
+        CopyStructureNodePtr const &structureNode,
+        PVFieldPtr const &masterPVField);
+    CopyMasterNodePtr getMasterNode(
+        CopyStructureNodePtr const &structureNode,
+        std::size_t structureOffset);
+    
+};
+
+}}
+
+#endif  /* PVCOPY_H */

src/factory/Compare.cpp

@@ -0,0 +1,330 @@
+/**
+ * Copyright - See the COPYRIGHT that is included with this distribution.
+ * EPICS pvData is distributed subject to a Software License Agreement found
+ * in file LICENSE that is included with this distribution.
+ */
+/**
+ * @author mes
+ */
+
+#include <algorithm>
+#include <iterator>
+#include <sstream>
+
+#define epicsExportSharedSymbols
+#include <pv/convert.h>
+
+using std::string;
+
+namespace epics { namespace pvData {
+
+// Introspection object comparision
+
+/** Field equality conditions:
+ * 1) same instance
+ * 2) same type (field and scalar/element), same name, same subfields (if any)
+ */
+bool operator==(const Field& a, const Field& b)
+{
+    if(&a==&b)
+        return true;
+    if(a.getType()!=b.getType())
+        return false;
+    switch(a.getType()) {
+    case scalar: {
+        const Scalar &A=static_cast<const Scalar&>(a);
+        const Scalar &B=static_cast<const Scalar&>(b);
+        return A==B;
+    }
+    case scalarArray: {
+            const ScalarArray &A=static_cast<const ScalarArray&>(a);
+            const ScalarArray &B=static_cast<const ScalarArray&>(b);
+            return A==B;
+        }
+    case structure: {
+            const Structure &A=static_cast<const Structure&>(a);
+            const Structure &B=static_cast<const Structure&>(b);
+            return A==B;
+        }
+    case structureArray: {
+            const StructureArray &A=static_cast<const StructureArray&>(a);
+            const StructureArray &B=static_cast<const StructureArray&>(b);
+            return A==B;
+        }
+    case union_: {
+            const Union &A=static_cast<const Union&>(a);
+            const Union &B=static_cast<const Union&>(b);
+            return A==B;
+        }
+    case unionArray: {
+            const UnionArray &A=static_cast<const UnionArray&>(a);
+            const UnionArray &B=static_cast<const UnionArray&>(b);
+            return A==B;
+        }
+    default:
+        throw std::logic_error("Invalid Field type in comparision");
+    }
+}
+
+bool operator==(const Scalar& a, const Scalar& b)
+{
+    if(&a==&b)
+        return true;
+    return a.getScalarType()==b.getScalarType();
+}
+
+bool operator==(const ScalarArray& a, const ScalarArray& b)
+{
+    if(&a==&b)
+        return true;
+    return a.getElementType()==b.getElementType();
+}
+
+bool operator==(const Structure& a, const Structure& b)
+{
+    if(&a==&b)
+        return true;
+    if (a.getID()!=b.getID())
+    	return false;
+    size_t nflds=a.getNumberFields();
+    if (b.getNumberFields()!=nflds)
+        return false;
+
+    // std::equals does not work, since FieldConstPtrArray is an array of shared_pointers
+    FieldConstPtrArray af = a.getFields();
+    FieldConstPtrArray bf = b.getFields();
+    for (size_t i = 0; i < nflds; i++)
+        if (*(af[i].get()) != *(bf[i].get()))
+            return false;
+
+    StringArray an = a.getFieldNames();
+    StringArray bn = b.getFieldNames();
+    return std::equal( an.begin(), an.end(), bn.begin() );
+}
+
+bool operator==(const StructureArray& a, const StructureArray& b)
+{
+    return *(a.getStructure().get())==*(b.getStructure().get());
+}
+
+bool operator==(const Union& a, const Union& b)
+{
+    if(&a==&b)
+        return true;
+    if (a.getID()!=b.getID())
+    	return false;
+    size_t nflds=a.getNumberFields();
+    if (b.getNumberFields()!=nflds)
+        return false;
+
+    // std::equals does not work, since FieldConstPtrArray is an array of shared_pointers
+    FieldConstPtrArray af = a.getFields();
+    FieldConstPtrArray bf = b.getFields();
+    for (size_t i = 0; i < nflds; i++)
+        if (*(af[i].get()) != *(bf[i].get()))
+            return false;
+
+    StringArray an = a.getFieldNames();
+    StringArray bn = b.getFieldNames();
+    return std::equal( an.begin(), an.end(), bn.begin() );
+}
+
+bool operator==(const UnionArray& a, const UnionArray& b)
+{
+    return *(a.getUnion().get())==*(b.getUnion().get());
+}
+
+// PVXXX object comparison
+
+namespace {
+
+// fully typed comparisons
+
+template<typename T>
+bool compareScalar(const PVScalarValue<T>* left, const PVScalarValue<T>* right)
+{
+    return left->get()==right->get();
+}
+
+template<typename T>
+bool compareArray(const PVValueArray<T>* left, const PVValueArray<T>* right)
+{
+    typename PVValueArray<T>::const_svector lhs(left->view()), rhs(right->view());
+    return std::equal(lhs.begin(), lhs.end(), rhs.begin());
+}
+
+// partially typed comparisons
+
+bool compareField(const PVScalar* left, const PVScalar* right)
+{
+    ScalarType lht = left->getScalar()->getScalarType();
+    if(lht != right->getScalar()->getScalarType())
+        return false;
+    switch(lht) {
+#define OP(ENUM, TYPE) case ENUM: return compareScalar(static_cast<const PVScalarValue<TYPE>*>(left), static_cast<const PVScalarValue<TYPE>*>(right))
+    OP(pvBoolean, uint8);
+    OP(pvUByte, uint8);
+    OP(pvByte, int8);
+    OP(pvUShort, uint16);
+    OP(pvShort, int16);
+    OP(pvUInt, uint32);
+    OP(pvInt, int32);
+    OP(pvULong, uint64);
+    OP(pvLong, int64);
+    OP(pvFloat, float);
+    OP(pvDouble, double);
+#undef OP
+    case pvString: {
+            const PVString *a=static_cast<const PVString*>(left), *b=static_cast<const PVString*>(right);
+            return a->get()==b->get();
+        }
+    }
+    throw std::logic_error("PVScalar with invalid scalar type!");
+}
+
+bool compareField(const PVScalarArray* left, const PVScalarArray* right)
+{
+    ScalarType lht = left->getScalarArray()->getElementType();
+    if(lht != right->getScalarArray()->getElementType())
+        return false;
+
+    if(left->getLength()!=right->getLength())
+        return false;
+
+    switch(lht) {
+#define OP(ENUM, TYPE) case ENUM: return compareArray(static_cast<const PVValueArray<TYPE>*>(left), static_cast<const PVValueArray<TYPE>*>(right))
+    OP(pvBoolean, uint8);
+    OP(pvUByte, uint8);
+    OP(pvByte, int8);
+    OP(pvUShort, uint16);
+    OP(pvShort, int16);
+    OP(pvUInt, uint32);
+    OP(pvInt, int32);
+    OP(pvULong, uint64);
+    OP(pvLong, int64);
+    OP(pvFloat, float);
+    OP(pvDouble, double);
+    OP(pvString, string);
+#undef OP
+    }
+    throw std::logic_error("PVScalarArray with invalid element type!");
+}
+
+bool compareField(const PVStructure* left, const PVStructure* right)
+{
+    StructureConstPtr ls = left->getStructure();
+
+    if(*ls!=*right->getStructure())
+        return false;
+
+    const PVFieldPtrArray& lf = left->getPVFields();
+    const PVFieldPtrArray& rf = right->getPVFields();
+
+    for(size_t i=0, nfld=ls->getNumberFields(); i<nfld; i++) {
+        if(*lf[i]!=*rf[i])
+            return false;
+    }
+    return true;
+}
+
+bool compareField(const PVStructureArray* left, const PVStructureArray* right)
+{
+    if(*left->getStructureArray()->getStructure()
+        != *right->getStructureArray()->getStructure())
+        return false;
+
+    PVStructureArray::const_svector ld=left->view(), rd=right->view();
+
+    if(ld.size()!=rd.size())
+        return false;
+
+    PVStructureArray::const_svector::const_iterator lit, lend, rit;
+
+    for(lit=ld.begin(), lend=ld.end(), rit=rd.begin();
+        lit!=lend;
+        ++lit, ++rit)
+    {
+        if(**lit != **rit)
+            return false;
+    }
+    return true;
+}
+
+bool compareField(const PVUnion* left, const PVUnion* right)
+{
+    UnionConstPtr ls = left->getUnion();
+
+    if(*ls!=*right->getUnion())
+        return false;
+        
+    if (ls->isVariant())
+    {
+        PVFieldPtr lval = left->get();
+        if (lval.get() == 0)
+            return right->get().get() == 0;
+        else
+            return *(lval.get()) == *(right->get().get());
+    }
+    else
+    {
+        int32 lix = left->getSelectedIndex();
+        if (lix == right->getSelectedIndex())
+        {
+            if (lix == PVUnion::UNDEFINED_INDEX || *(left->get()) == *(right->get().get()))
+                return true;
+            else
+                return false;
+        }
+        else
+            return false;
+    }
+}
+
+bool compareField(const PVUnionArray* left, const PVUnionArray* right)
+{
+    if(*left->getUnionArray()->getUnion()
+        != *right->getUnionArray()->getUnion())
+        return false;
+
+    PVUnionArray::const_svector ld=left->view(), rd=right->view();
+
+    if(ld.size()!=rd.size())
+        return false;
+
+    PVUnionArray::const_svector::const_iterator lit, lend, rit;
+
+    for(lit=ld.begin(), lend=ld.end(), rit=rd.begin();
+        lit!=lend;
+        ++lit, ++rit)
+    {
+        if(**lit != **rit)
+            return false;
+    }
+    return true;
+}
+
+} // end namespace
+
+// untyped comparison
+
+bool operator==(const PVField& left, const PVField& right)
+{
+    if(&left == &right)
+        return true;
+
+    Type lht = left.getField()->getType();
+    if(lht != right.getField()->getType())
+        return false;
+
+    switch(lht) {
+    case scalar: return compareField(static_cast<const PVScalar*>(&left), static_cast<const PVScalar*>(&right));
+    case scalarArray: return compareField(static_cast<const PVScalarArray*>(&left), static_cast<const PVScalarArray*>(&right));
+    case structure: return compareField(static_cast<const PVStructure*>(&left), static_cast<const PVStructure*>(&right));
+    case structureArray: return compareField(static_cast<const PVStructureArray*>(&left), static_cast<const PVStructureArray*>(&right));
+    case union_: return compareField(static_cast<const PVUnion*>(&left), static_cast<const PVUnion*>(&right));
+    case unionArray: return compareField(static_cast<const PVUnionArray*>(&left), static_cast<const PVUnionArray*>(&right));
+    }
+    throw std::logic_error("PVField with invalid type!");
+}
+
+}} // namespace epics::pvData

src/factory/Convert.cpp

@@ -0,0 +1,535 @@
+/* Convert.cpp */
+/**
+ * Copyright - See the COPYRIGHT that is included with this distribution.
+ * EPICS pvData is distributed subject to a Software License Agreement found
+ * in file LICENSE that is included with this distribution.
+ */
+/**
+ *  @author mrk
+ */
+#include <cstdio>
+#include <string>
+#include <vector>
+#include <stdexcept>
+#include <typeinfo>
+
+#define epicsExportSharedSymbols
+#include <pv/lock.h>
+#include <pv/pvIntrospect.h>
+#include <pv/pvData.h>
+#include <pv/convert.h>
+#include <pv/printer.h>
+
+using std::tr1::static_pointer_cast;
+using std::size_t;
+using std::string;
+
+namespace epics { namespace pvData { 
+
+
+static std::vector<string> split(string commaSeparatedList) {
+    string::size_type numValues = 1;
+    string::size_type index=0;
+    while(true) {
+        string::size_type pos = commaSeparatedList.find(',',index);
+        if(pos==string::npos) break;
+        numValues++;
+        index = pos +1;
+    }
+    std::vector<string> valueList(numValues,"");
+    index=0;
+    for(size_t i=0; i<numValues; i++) {
+        size_t pos = commaSeparatedList.find(',',index);
+        string value = commaSeparatedList.substr(index,pos);
+        valueList[i] = value;
+        index = pos +1;
+    }
+    return valueList;
+}
+
+void Convert::getString(string *buf,PVField const *pvField,int /*indentLevel*/)
+{
+    // TODO indextLevel ignored
+    std::ostringstream strm;
+    strm << pvField->dumpValue(strm) << std::endl;
+//    PrinterPlain p;
+//    p.setStream(strm);
+//    p.print(*pvField);
+    strm.str().swap(*buf);
+}
+
+
+size_t Convert::fromString(PVStructurePtr const &pvStructure, StringArray const & from, size_t fromStartIndex)
+{
+    size_t processed = 0;
+    
+    PVFieldPtrArray const & fieldsData = pvStructure->getPVFields();
+    if (fieldsData.size() != 0) {
+        size_t length = pvStructure->getStructure()->getNumberFields();
+        for(size_t i=0; i<length; i++) {
+            PVFieldPtr fieldField = fieldsData[i];
+
+            Type type = fieldField->getField()->getType();
+            if(type==structure) {
+                PVStructurePtr pv = static_pointer_cast<PVStructure>(fieldField);
+                size_t count = fromString(pv, from, fromStartIndex);
+                processed += count;
+                fromStartIndex += count;
+            }
+            else if(type==scalarArray) {
+                PVScalarArrayPtr pv = static_pointer_cast<PVScalarArray>(fieldField);
+                size_t count = fromString(pv, from[fromStartIndex]);
+                processed += count;
+                fromStartIndex += count;
+            }
+            else if(type==scalar) {
+                PVScalarPtr pv = static_pointer_cast<PVScalar>(fieldField);
+                fromString(pv, from[fromStartIndex++]);
+                processed++;
+            }
+            else {
+                // union, structureArray, unionArray not supported
+                std::ostringstream oss;
+                oss << "Convert::fromString unsupported fieldType " << type;
+                throw std::logic_error(oss.str());
+            }
+        }
+    }
+    
+    return processed;
+}
+
+size_t Convert::fromString(PVScalarArrayPtr const &pv, string from)
+{
+   if(from[0]=='[' && from[from.length()]==']') {
+        size_t offset = from.rfind(']');
+        from = from.substr(1, offset);
+    }
+    std::vector<string> valueList(split(from));
+    size_t length = valueList.size();
+    size_t num = fromStringArray(pv,0,length,valueList,0);
+    if(num<length) length = num;
+    pv->setLength(length);
+    return length;
+}
+
+size_t Convert::fromStringArray(PVScalarArrayPtr const &pv,
+                                size_t offset, size_t length,
+                                StringArray const & from,
+                                size_t fromOffset)
+{
+    size_t alen = pv->getLength();
+
+    if(offset==0 && length>=alen) {
+        // replace all existing elements
+        assert(from.size()>=fromOffset+length);
+
+        PVStringArray::svector data(length);
+        std::copy(from.begin()+fromOffset,
+                  from.begin()+fromOffset+length,
+                  data.begin());
+
+        PVStringArray::const_svector temp(freeze(data));
+        pv->putFrom<string>(temp);
+        return length;
+
+    } else {
+        // partial update.
+        throw std::runtime_error("fromStringArray: partial update not implemented");
+    }
+}
+
+size_t Convert::toStringArray(PVScalarArrayPtr const & pv,
+                              size_t offset, size_t length,
+                              StringArray  &to, size_t toOffset)
+{
+    PVStringArray::const_svector data;
+    pv->getAs<string>(data);
+    data.slice(offset, length);
+    if(toOffset+data.size() > to.size())
+        to.resize(toOffset+data.size());
+    std::copy(data.begin()+toOffset, data.end(), to.begin());
+    return data.size();
+}
+
+bool Convert::isCopyCompatible(FieldConstPtr const &from, FieldConstPtr const &to)
+{
+    if(from->getType()!=to->getType()) return false;
+    switch(from->getType()) {
+    case scalar:
+        {
+             ScalarConstPtr xxx = static_pointer_cast<const Scalar>(from);
+             ScalarConstPtr yyy = static_pointer_cast<const Scalar>(to);
+             return isCopyScalarCompatible(xxx,yyy);
+        }
+    case scalarArray:
+        {
+             ScalarArrayConstPtr xxx = static_pointer_cast<const ScalarArray>(from);
+             ScalarArrayConstPtr yyy = static_pointer_cast<const ScalarArray>(to);
+             return isCopyScalarArrayCompatible(xxx,yyy);
+        }
+    case structure:
+        {
+             StructureConstPtr xxx = static_pointer_cast<const Structure>(from);
+             StructureConstPtr yyy = static_pointer_cast<const Structure>(to);
+             return isCopyStructureCompatible(xxx,yyy);
+        }
+    case structureArray:
+        {
+             StructureArrayConstPtr xxx = static_pointer_cast<const StructureArray>(from);
+             StructureArrayConstPtr yyy = static_pointer_cast<const StructureArray>(to);
+             return isCopyStructureArrayCompatible(xxx,yyy);
+        }
+    case union_:
+        {
+             UnionConstPtr xxx = static_pointer_cast<const Union>(from);
+             UnionConstPtr yyy = static_pointer_cast<const Union>(to);
+             return isCopyUnionCompatible(xxx,yyy);
+        }
+    case unionArray:
+        {
+             UnionArrayConstPtr xxx = static_pointer_cast<const UnionArray>(from);
+             UnionArrayConstPtr yyy = static_pointer_cast<const UnionArray>(to);
+             return isCopyUnionArrayCompatible(xxx,yyy);
+        }
+    }
+    string message("Convert::isCopyCompatible should never get here");
+    throw std::logic_error(message);
+}
+
+void Convert::copy(PVFieldPtr const & from, PVFieldPtr const & to)
+{
+    switch(from->getField()->getType()) {
+    case scalar: 
+        {
+             PVScalarPtr xxx = static_pointer_cast<PVScalar>(from);
+             PVScalarPtr yyy = static_pointer_cast<PVScalar>(to);
+             copyScalar(xxx,yyy);
+             return;
+        }
+    case scalarArray:
+        {
+             PVScalarArrayPtr fromArray = static_pointer_cast<PVScalarArray>(from);
+             PVScalarArrayPtr toArray = static_pointer_cast<PVScalarArray>(to);
+             toArray->assign(*fromArray.get());
+             return;
+        }
+    case structure:
+        {
+             PVStructurePtr xxx = static_pointer_cast<PVStructure>(from);
+             PVStructurePtr yyy = static_pointer_cast<PVStructure>(to);
+             copyStructure(xxx,yyy);
+             return;
+        }
+    case structureArray: {
+            PVStructureArrayPtr fromArray = static_pointer_cast<PVStructureArray>(from);
+            PVStructureArrayPtr toArray = static_pointer_cast<PVStructureArray>(to);
+            copyStructureArray(fromArray,toArray);
+            return;
+        }
+    case union_:
+        {
+             PVUnionPtr xxx = static_pointer_cast<PVUnion>(from);
+             PVUnionPtr yyy = static_pointer_cast<PVUnion>(to);
+             copyUnion(xxx,yyy);
+             return;
+        }
+    case unionArray: {
+            PVUnionArrayPtr fromArray = static_pointer_cast<PVUnionArray>(from);
+            PVUnionArrayPtr toArray = static_pointer_cast<PVUnionArray>(to);
+            copyUnionArray(fromArray,toArray);
+            return;
+        }
+    }
+}
+
+bool Convert::isCopyScalarCompatible(
+     ScalarConstPtr const & fromField, ScalarConstPtr const & toField)
+{
+    ScalarType fromScalarType = fromField->getScalarType();
+    ScalarType toScalarType = toField->getScalarType();
+    if(fromScalarType==toScalarType) return true;
+    if(ScalarTypeFunc::isNumeric(fromScalarType)
+    && ScalarTypeFunc::isNumeric(toScalarType)) return true;
+    if(fromScalarType==pvString) return true;
+    if(toScalarType==pvString) return true;
+    return false;
+}
+
+void Convert::copyScalar(PVScalarPtr const & from, PVScalarPtr const & to)
+{
+    if(to->isImmutable()) {
+        if(from==to) return;
+        string message("Convert.copyScalar destination is immutable");
+        throw std::invalid_argument(message);
+    }
+    to->assign(*from.get());
+}
+
+bool Convert::isCopyScalarArrayCompatible(ScalarArrayConstPtr const &fromArray,
+    ScalarArrayConstPtr const &toArray)
+{
+    ScalarType fromType = fromArray->getElementType();
+    ScalarType toType = toArray->getElementType();
+    if(fromType==toType) return true;
+    if(ScalarTypeFunc::isNumeric(fromType)
+    && ScalarTypeFunc::isNumeric(toType)) return true;
+    if(toType==pvString) return true;
+    if(fromType==pvString) return true;
+    return false;
+}
+
+bool Convert::isCopyStructureCompatible(
+    StructureConstPtr const &fromStruct, StructureConstPtr const &toStruct)
+{
+    FieldConstPtrArray fromFields = fromStruct->getFields();
+    FieldConstPtrArray toFields = toStruct->getFields();
+    size_t length = fromStruct->getNumberFields();
+    if(length!=toStruct->getNumberFields()) return false;
+    for(size_t i=0; i<length; i++) {
+        FieldConstPtr from = fromFields[i];
+        FieldConstPtr to = toFields[i];
+        Type fromType = from->getType();
+        Type toType = to->getType();
+        if(fromType!=toType) return false;
+        switch(fromType) {
+        case scalar:
+            {
+		ScalarConstPtr xxx = static_pointer_cast<const Scalar>(from);
+                ScalarConstPtr yyy = static_pointer_cast<const Scalar>(to);
+                if(!isCopyScalarCompatible(xxx,yyy)) return false;
+            }
+            break;
+        case scalarArray:
+            {
+		ScalarArrayConstPtr xxx = static_pointer_cast<const ScalarArray>(from);
+                ScalarArrayConstPtr yyy = static_pointer_cast<const ScalarArray>(to);
+                if(!isCopyScalarArrayCompatible(xxx,yyy)) return false;
+            }
+            break;
+        case structure:
+            {
+		StructureConstPtr xxx = static_pointer_cast<const Structure>(from);
+                StructureConstPtr yyy = static_pointer_cast<const Structure>(to);
+                if(!isCopyStructureCompatible(xxx,yyy)) return false;
+            }
+            break;
+        case structureArray:
+            {
+		StructureArrayConstPtr xxx = static_pointer_cast<const StructureArray>(from);
+                StructureArrayConstPtr yyy = static_pointer_cast<const StructureArray>(to);
+                if(!isCopyStructureArrayCompatible(xxx,yyy)) return false;
+            }
+        case union_:
+            {
+		UnionConstPtr xxx = static_pointer_cast<const Union>(from);
+                UnionConstPtr yyy = static_pointer_cast<const Union>(to);
+                if(!isCopyUnionCompatible(xxx,yyy)) return false;
+            }
+            break;
+        case unionArray:
+            {
+		UnionArrayConstPtr xxx = static_pointer_cast<const UnionArray>(from);
+                UnionArrayConstPtr yyy = static_pointer_cast<const UnionArray>(to);
+                if(!isCopyUnionArrayCompatible(xxx,yyy)) return false;
+            }
+            break;
+        }
+    }
+    return true;
+}
+
+void Convert::copyStructure(PVStructurePtr const & from, PVStructurePtr const & to)
+{
+    if(to->isImmutable()) {
+        if(from==to) return;
+        throw std::invalid_argument("Convert.copyStructure destination is immutable");
+    }
+    if(from==to) return;
+    PVFieldPtrArray const & fromDatas = from->getPVFields();
+    PVFieldPtrArray const & toDatas = to->getPVFields();
+    if(from->getStructure()->getNumberFields() 
+    != to->getStructure()->getNumberFields()) {
+        string message("Convert.copyStructure Illegal copyStructure");
+        throw std::invalid_argument(message);
+    }
+    size_t numberFields = from->getStructure()->getNumberFields();
+    if(numberFields>=2) {
+        string name0 = fromDatas[0]->getFieldName();
+        string name1 = fromDatas[1]->getFieldName();
+        // look for enumerated structure and copy choices first
+        if(name0.compare("index")==0 && name1.compare("choices")==0) {
+            FieldConstPtr fieldIndex = fromDatas[0]->getField();
+            FieldConstPtr fieldChoices = fromDatas[1]->getField();
+            if(fieldIndex->getType()==scalar
+            && fieldChoices->getType()==scalarArray) {
+                PVScalarPtr pvScalar = static_pointer_cast<PVScalar>(fromDatas[0]);
+                PVScalarArrayPtr pvArray =
+                    static_pointer_cast<PVScalarArray>(fromDatas[1]);
+                if((pvScalar->getScalar()->getScalarType()==pvInt)
+                && (pvArray->getScalarArray()->getElementType()==pvString)) {
+                   PVScalarArrayPtr toArray = 
+                       static_pointer_cast<PVScalarArray>(toDatas[1]);
+                   toArray->assign(*pvArray.get());
+                   PVScalarPtr toScalar = static_pointer_cast<PVScalar>(toDatas[0]);
+                   copyScalar(pvScalar,toScalar);
+                   return;
+                }
+            }
+        }
+    }
+    for(size_t i=0; i < numberFields; i++) {
+        PVFieldPtr fromData = fromDatas[i];
+        PVFieldPtr toData = toDatas[i];
+        Type fromType = fromData->getField()->getType();
+        Type toType = toData->getField()->getType();
+        if(fromType!=toType) {
+            string message("Convert.copyStructure Illegal copyStructure");
+            throw std::invalid_argument(message);
+        }
+        if(toData->isImmutable()) {
+            if(fromData==toData) return;
+            throw std::invalid_argument("Convert.copyStructure destination is immutable");
+        }
+        switch(fromType) {
+        case scalar:
+            {
+                PVScalarPtr xxx = static_pointer_cast<PVScalar>(fromData);
+                PVScalarPtr yyy = static_pointer_cast<PVScalar>(toData);
+                copyScalar(xxx,yyy);
+                break;
+            }
+        case scalarArray:
+            {
+                PVScalarArrayPtr fromArray = static_pointer_cast<PVScalarArray>(fromData);
+                PVScalarArrayPtr toArray = static_pointer_cast<PVScalarArray>(toData);
+                toArray->assign(*fromArray.get());
+                break;
+            }
+        case structure:
+            {
+                PVStructurePtr xxx = static_pointer_cast<PVStructure>(fromData);
+                PVStructurePtr yyy = static_pointer_cast<PVStructure>(toData);
+                copyStructure(xxx,yyy);
+                break;
+            }
+        case structureArray:
+            {
+                PVStructureArrayPtr fromArray = 
+                    static_pointer_cast<PVStructureArray>(fromData);
+                PVStructureArrayPtr toArray = 
+                    static_pointer_cast<PVStructureArray>(toData);
+                copyStructureArray(fromArray,toArray);
+                break;
+            }
+        case union_:
+            {
+                PVUnionPtr xxx = static_pointer_cast<PVUnion>(fromData);
+                PVUnionPtr yyy = static_pointer_cast<PVUnion>(toData);
+                copyUnion(xxx,yyy);
+                break;
+            }
+        case unionArray:
+            {
+                PVUnionArrayPtr fromArray = 
+                    static_pointer_cast<PVUnionArray>(fromData);
+                PVUnionArrayPtr toArray = 
+                    static_pointer_cast<PVUnionArray>(toData);
+                copyUnionArray(fromArray,toArray);
+                break;
+            }
+        }
+    }
+}
+
+bool Convert::isCopyUnionCompatible(
+    UnionConstPtr const &from, UnionConstPtr const &to)
+{
+    return *(from.get()) == *(to.get());
+}
+
+void Convert::copyUnion(PVUnionPtr const & from, PVUnionPtr const & to)
+{
+    if(to->isImmutable()) {
+        if(from==to) return;
+        throw std::invalid_argument("Convert.copyUnion destination is immutable");
+    }
+    if(from==to) return;
+    if(!isCopyUnionCompatible(from->getUnion(), to->getUnion())) {
+        throw std::invalid_argument("Illegal copyUnion");
+    }
+            
+    PVFieldPtr fromValue = from->get();
+    if (from->getUnion()->isVariant())
+    {
+        if (fromValue.get() == 0)
+            to->set(PVFieldPtr());
+        else
+            to->set(getPVDataCreate()->createPVField(fromValue));	// clone value // TODO cache getPVDataCreate()
+    }
+    else
+    {
+        if (fromValue.get() == 0)
+            to->select(PVUnion::UNDEFINED_INDEX);
+        else
+            to->set(from->getSelectedFieldName(),from->get());
+    }
+}
+
+bool Convert::isCopyStructureArrayCompatible(
+    StructureArrayConstPtr const &from, StructureArrayConstPtr const &to)
+{
+    StructureConstPtr xxx = from->getStructure();
+    StructureConstPtr yyy = to->getStructure();
+    return isCopyStructureCompatible(xxx,yyy);
+}
+
+void Convert::copyStructureArray(
+    PVStructureArrayPtr const & from, PVStructureArrayPtr const & to)
+{
+    if(from==to) {
+        return;
+    } else if(to->isImmutable()) {
+        throw std::invalid_argument("Convert.copyStructureArray destination is immutable");
+    }
+    to->replace(from->view());
+}
+
+bool Convert::isCopyUnionArrayCompatible(
+    UnionArrayConstPtr const &from, UnionArrayConstPtr const &to)
+{
+    UnionConstPtr xxx = from->getUnion();
+    UnionConstPtr yyy = to->getUnion();
+    return isCopyUnionCompatible(xxx,yyy);
+}
+
+void Convert::copyUnionArray(
+    PVUnionArrayPtr const & from, PVUnionArrayPtr const & to)
+{
+    if(from==to) {
+        return;
+    } else if(to->isImmutable()) {
+        throw std::invalid_argument("Convert.copyUnionArray destination is immutable");
+    }
+    to->replace(from->view());
+}
+
+void Convert::newLine(string *buffer, int indentLevel)
+{
+    *buffer += "\n";
+    *buffer += string(indentLevel*4, ' ');
+}
+
+ConvertPtr Convert::getConvert()
+{
+    static ConvertPtr convert;
+    static Mutex mutex;
+    Lock xx(mutex);
+
+    if(convert.get()==0) {
+        convert = ConvertPtr(new Convert());
+    }
+    return convert;
+}
+
+}}

src/factory/Makefile

@@ -0,0 +1,23 @@
+# This is a Makefile fragment, see ../Makefile
+
+SRC_DIRS += $(PVDATA_SRC)/factory
+
+INC += factory.h
+LIBSRCS += TypeFunc.cpp
+LIBSRCS += FieldCreateFactory.cpp
+LIBSRCS += PVField.cpp
+LIBSRCS += PVScalar.cpp
+LIBSRCS += PVArray.cpp
+LIBSRCS += PVScalarArray.cpp
+LIBSRCS += PVStructure.cpp
+LIBSRCS += PVStructureArray.cpp
+LIBSRCS += PVUnion.cpp
+LIBSRCS += PVUnionArray.cpp
+LIBSRCS += PVDataCreateFactory.cpp
+LIBSRCS += Convert.cpp
+LIBSRCS += pvSubArrayCopy.cpp
+LIBSRCS += Compare.cpp
+LIBSRCS += StandardField.cpp
+LIBSRCS += StandardPVField.cpp
+LIBSRCS += printer.cpp
+

src/factory/PVArray.cpp

@@ -0,0 +1,56 @@
+/*PVArray.cpp*/
+/**
+ * Copyright - See the COPYRIGHT that is included with this distribution.
+ * EPICS pvData is distributed subject to a Software License Agreement found
+ * in file LICENSE that is included with this distribution.
+ */
+/**
+ *  @author mrk
+ */
+
+#include <cstddef>
+#include <cstdlib>
+#include <string>
+#include <cstdio>
+
+#define epicsExportSharedSymbols
+#include <pv/pvData.h>
+#include <pv/factory.h>
+
+using std::size_t;
+
+namespace epics { namespace pvData {
+
+PVArray::PVArray(FieldConstPtr const & field)
+: PVField(field),capacityMutable(true)
+{ }
+
+ void PVArray::setImmutable()
+ {
+     capacityMutable = false;
+     PVField::setImmutable();
+ } 
+
+ bool PVArray::isCapacityMutable() const
+ {
+      if(PVField::isImmutable()) {
+          return false;
+      }
+      return capacityMutable;
+ }
+
+ void PVArray::setCapacityMutable(bool isMutable)
+ {
+    if(isMutable && PVField::isImmutable()) {
+       throw std::runtime_error("field is immutable");
+    }
+    capacityMutable = isMutable;
+ }
+
+
+std::ostream& operator<<(format::array_at_internal const& manip, const PVArray& array)
+{
+	return array.dumpValue(manip.stream, manip.index);
+}
+
+}}

src/factory/PVDataCreateFactory.cpp

@@ -7,13 +7,17 @@
 /**
  *  @author mrk
  */
+
 #ifdef _WIN32
 #define NOMINMAX
 #endif
+
 #include <cstddef>
 #include <cstdlib>
 #include <string>
 #include <cstdio>
+
+#define epicsExportSharedSymbols
 #include <pv/lock.h>
 #include <pv/pvIntrospect.h>
 #include <pv/pvData.h>
@@ -23,11 +27,38 @@
 
 using std::tr1::static_pointer_cast;
 using std::size_t;
+using std::string;
 using std::min;
 
 namespace epics { namespace pvData {
 
 
+template<> const ScalarType PVBoolean::typeCode = pvBoolean;
+template<> const ScalarType PVByte::typeCode = pvByte;
+template<> const ScalarType PVShort::typeCode = pvShort;
+template<> const ScalarType PVInt::typeCode = pvInt;
+template<> const ScalarType PVLong::typeCode = pvLong;
+template<> const ScalarType PVUByte::typeCode = pvUByte;
+template<> const ScalarType PVUShort::typeCode = pvUShort;
+template<> const ScalarType PVUInt::typeCode = pvUInt;
+template<> const ScalarType PVULong::typeCode = pvULong;
+template<> const ScalarType PVFloat::typeCode = pvFloat;
+template<> const ScalarType PVDouble::typeCode = pvDouble;
+template<> const ScalarType PVScalarValue<string>::typeCode = pvString;
+
+template<> const ScalarType PVBooleanArray::typeCode = pvBoolean;
+template<> const ScalarType PVByteArray::typeCode = pvByte;
+template<> const ScalarType PVShortArray::typeCode = pvShort;
+template<> const ScalarType PVIntArray::typeCode = pvInt;
+template<> const ScalarType PVLongArray::typeCode = pvLong;
+template<> const ScalarType PVUByteArray::typeCode = pvUByte;
+template<> const ScalarType PVUShortArray::typeCode = pvUShort;
+template<> const ScalarType PVUIntArray::typeCode = pvUInt;
+template<> const ScalarType PVULongArray::typeCode = pvULong;
+template<> const ScalarType PVFloatArray::typeCode = pvFloat;
+template<> const ScalarType PVDoubleArray::typeCode = pvDouble;
+template<> const ScalarType PVStringArray::typeCode = pvString;
+
 /** Default storage for scalar values
  */
 template<typename T>
@@ -53,7 +84,7 @@ template<typename T>
 BasePVScalar<T>::BasePVScalar(ScalarConstPtr const & scalar)
     : PVScalarValue<T>(scalar),value(0)
 {}
-//Note: '0' is a suitable default for all POD types (not String)
+//Note: '0' is a suitable default for all POD types (not string)
 
 template<typename T>
 BasePVScalar<T>::~BasePVScalar() {}
@@ -62,7 +93,11 @@ template<typename T>
 T BasePVScalar<T>::get() const  { return value;}
 
 template<typename T>
-void BasePVScalar<T>::put(T val){value = val;}
+void BasePVScalar<T>::put(T val)
+{
+    value = val;
+    PVField::postPut();
+}
 
 template<typename T>
 void BasePVScalar<T>::serialize(ByteBuffer *pbuffer,
@@ -94,14 +129,14 @@ typedef BasePVScalar<double> BasePVDouble;
 // BasePVString is special case, since it implements SerializableArray
 class BasePVString : public PVString {
 public:
-    typedef String value_type;
-    typedef String* pointer;
-    typedef const String* const_pointer;
+    typedef string value_type;
+    typedef string* pointer;
+    typedef const string* const_pointer;
 
     BasePVString(ScalarConstPtr const & scalar);
     virtual ~BasePVString();
-    virtual String get() const ;
-    virtual void put(String val);
+    virtual string get() const ;
+    virtual void put(string val);
     virtual void serialize(ByteBuffer *pbuffer,
         SerializableControl *pflusher) const;
     virtual void deserialize(ByteBuffer *pbuffer,
@@ -109,7 +144,7 @@ public:
     virtual void serialize(ByteBuffer *pbuffer,
         SerializableControl *pflusher, size_t offset, size_t count) const;
 private:
-    String value;
+    string value;
 };
 
 BasePVString::BasePVString(ScalarConstPtr const & scalar)
@@ -118,9 +153,13 @@ BasePVString::BasePVString(ScalarConstPtr const & scalar)
 
 BasePVString::~BasePVString() {}
 
-String BasePVString::get() const  { return value;}
+string BasePVString::get() const  { return value;}
 
-void BasePVString::put(String val){value = val;}
+void BasePVString::put(string val)
+{
+    value = val;
+    postPut();
+}
 
 void BasePVString::serialize(ByteBuffer *pbuffer,
     SerializableControl *pflusher) const
@@ -139,9 +178,9 @@ void BasePVString::serialize(ByteBuffer *pbuffer,
 {
 	// check bounds
 	const size_t length = /*(value == null) ? 0 :*/ value.length();
-	if (offset < 0) offset = 0;
-	else if (offset > length) offset = length;
-	if (count < 0) count = length;
+	/*if (offset < 0) offset = 0;
+	else*/ if (offset > length) offset = length;
+	//if (count < 0) count = length;
 
 	const size_t maxCount = length - offset;
 	if (count > maxCount)
@@ -162,157 +201,79 @@ public:
     typedef const std::vector<T> const_vector;
     typedef std::tr1::shared_ptr<vector> shared_vector;
 
+    typedef ::epics::pvData::shared_vector<T> svector;
+    typedef ::epics::pvData::shared_vector<const T> const_svector;
+
     DefaultPVArray(ScalarArrayConstPtr const & scalarArray);
     virtual ~DefaultPVArray();
+
+    virtual size_t getLength() const {return value.size();}
+    virtual size_t getCapacity() const {return value.capacity();}
+
     virtual void setCapacity(size_t capacity);
     virtual void setLength(size_t length);
-    virtual size_t get(size_t offset, size_t length, PVArrayData<T> &data) ;
-    virtual size_t put(size_t offset,size_t length, const_pointer from,
-       size_t fromOffset);
-    virtual void shareData(
-        std::tr1::shared_ptr<std::vector<T> > const & value,
-         std::size_t capacity,
-         std::size_t length);
-    virtual pointer get() ;
-    virtual pointer get() const ;
-    virtual vector const & getVector() { return *value.get(); }
-    virtual shared_vector const & getSharedVector(){return value;};
+
+    virtual const_svector view() const {return value;}
+    virtual void swap(const_svector &other);
+    virtual void replace(const const_svector& next);
+
     // from Serializable
     virtual void serialize(ByteBuffer *pbuffer,SerializableControl *pflusher) const;
     virtual void deserialize(ByteBuffer *pbuffer,DeserializableControl *pflusher);
     virtual void serialize(ByteBuffer *pbuffer,
          SerializableControl *pflusher, size_t offset, size_t count) const;
 private:
-    shared_vector value;
+    const_svector value;
 };
 
-template<typename T>
-T *DefaultPVArray<T>::get() 
-{
-     std::vector<T> *vec = value.get();
-     T *praw = &((*vec)[0]);
-     return praw;
-}
-
-template<typename T>
-T *DefaultPVArray<T>::get() const
-{
-     std::vector<T> *vec = value.get();
-     T *praw = &((*vec)[0]);
-     return praw;
-}
-
-
 template<typename T>
 DefaultPVArray<T>::DefaultPVArray(ScalarArrayConstPtr const & scalarArray)
 : PVValueArray<T>(scalarArray),
-    value(std::tr1::shared_ptr<std::vector<T> >(new std::vector<T>()))
+    value()
   
 { }
 
 template<typename T>
 DefaultPVArray<T>::~DefaultPVArray()
 { }
-
 template<typename T>
 void DefaultPVArray<T>::setCapacity(size_t capacity)
 {
-    if(PVArray::getCapacity()==capacity) return;
-    if(!PVArray::isCapacityMutable()) {
-        std::string message("not capacityMutable");
-        PVField::message(message, errorMessage);
-        return;
+    if(this->isCapacityMutable()) {
+        value.reserve(capacity);
     }
-    size_t length = PVArray::getLength();
-    if(length>capacity) length = capacity;
-    size_t oldCapacity = PVArray::getCapacity();
-    if(oldCapacity>capacity) {
-        std::vector<T> array;
-        array.reserve(capacity);
-        array.resize(length);
-        T * from = get();
-        for (size_t i=0; i<length; i++) array[i] = from[i];
-        value->swap(array);
-    } else {
-        value->reserve(capacity);
-    }
-    PVArray::setCapacityLength(capacity,length);
 }
 
 template<typename T>
 void DefaultPVArray<T>::setLength(size_t length)
 {
-    if(PVArray::getLength()==length) return;
-    size_t capacity = PVArray::getCapacity();
-    if(length>capacity) {
-        if(!PVArray::isCapacityMutable()) {
-            std::string message("not capacityMutable");
-            PVField::message(message, errorMessage);
-            return;
-        }
-        setCapacity(length);
-    }
-    value->resize(length);
-    PVArray::setCapacityLength(capacity,length);
+    if(this->isImmutable())
+        THROW_EXCEPTION2(std::logic_error,"Immutable");
+    if(length == value.size())
+        return;
+    else if(length < value.size())
+        value.slice(0, length);
+    else
+        value.resize(length);
 }
 
 template<typename T>
-size_t DefaultPVArray<T>::get(size_t offset, size_t len, PVArrayData<T> &data)
+void DefaultPVArray<T>::replace(const const_svector& next)
 {
-    size_t n = len;
-    size_t length = this->getLength();
-    if(offset+len > length) {
-        n = length-offset;
-        if(n<0) n = 0;
-    }
-    data.data = *value.get();
-    data.offset = offset;
-    return n;
-}
-
-template<typename T>
-size_t DefaultPVArray<T>::put(size_t offset,size_t len,
-    const_pointer from,size_t fromOffset)
-{
-    if(PVField::isImmutable()) {
-        PVField::message("field is immutable",errorMessage);
-        return 0;
-    }
-    T * pvalue = get();
-    if(from==pvalue) return len;
-    if(len<1) return 0;
-    size_t length = this->getLength();
-    size_t capacity = this->getCapacity();
-    if(offset+len > length) {
-        size_t newlength = offset + len;
-        if(newlength>capacity) {
-            setCapacity(newlength);
-            newlength = this->getCapacity();
-            len = newlength - offset;
-            if(len<=0) return 0;
-        }
-        length = newlength;
-        setLength(length);
-    }
-    pvalue = get();
-    for(size_t i=0;i<len;i++) {
-       pvalue[i+offset] = from[i+fromOffset];
-    }
-    this->setLength(length);
+    value = next;
     this->postPut();
-    return len;
 }
 
 template<typename T>
-void DefaultPVArray<T>::shareData(
-         std::tr1::shared_ptr<std::vector<T> > const & sharedValue,
-         std::size_t capacity,
-         std::size_t length)
+void DefaultPVArray<T>::swap(const_svector &other)
 {
-    value = sharedValue;
-    PVArray::setCapacityLength(capacity,length);
+    if(this->isImmutable())
+        THROW_EXCEPTION2(std::logic_error,"Immutable");
+
+    value.swap(other);
 }
 
+
 template<typename T>
 void DefaultPVArray<T>::serialize(ByteBuffer *pbuffer,
             SerializableControl *pflusher) const {
@@ -323,117 +284,122 @@ template<typename T>
 void DefaultPVArray<T>::deserialize(ByteBuffer *pbuffer,
         DeserializableControl *pcontrol) {
     size_t size = SerializeHelper::readSize(pbuffer, pcontrol);
-    // if (size>0) { pcontrol->ensureData(sizeof(T)-1); pbuffer->align(sizeof(T)); }
-    if(size>=0) {
-        // prepare array, if necessary
-        if(size>this->getCapacity()) this->setCapacity(size);
-        // set new length
-        this->setLength(size);
-        // retrieve value from the buffer
-        size_t i = 0;
-        while(true) {
-            /*
-            size_t maxIndex = min(size-i, (int)(pbuffer->getRemaining()/sizeof(T)))+i;
-            for(; i<maxIndex; i++)
-                value[i] = pbuffer->get<T>();
-              */  
-            size_t maxCount = min(size-i, (pbuffer->getRemaining()/sizeof(T)));
-            pbuffer->getArray(get()+i, maxCount);
-            i += maxCount;
-            
-            if(i<size)
-                pcontrol->ensureData(sizeof(T)); // this is not OK since can exceen max local buffer (size-i)*sizeof(T));
-            else
-                break;
-        }
+
+    svector nextvalue(thaw(value));
+    nextvalue.resize(size); // TODO: avoid copy of stuff we will then overwrite
+
+    T* cur = nextvalue.data();
+
+    // try to avoid deserializing from the buffer
+    // this is only possible if we do not need to do endian-swapping
+    if (!pbuffer->reverse<T>())
+        if (pcontrol->directDeserialize(pbuffer, (char*)cur, size, sizeof(T)))
+        {
         // inform about the change?
         PVField::postPut();
+        return;
     }
-    // TODO null arrays (size == -1) not supported
+
+    // retrieve value from the buffer
+    size_t remaining = size;
+    while(remaining) {
+        const size_t have_bytes = pbuffer->getRemaining();
+
+        // correctly rounds down in an element is partially received
+        const size_t available = have_bytes/sizeof(T);
+
+        if(available == 0) {
+            // get at least one element
+            pcontrol->ensureData(sizeof(T));
+            continue;
+        }
+
+        const size_t n2read = std::min(remaining, available);
+
+        pbuffer->getArray(cur, n2read);
+        cur += n2read;
+        remaining -= n2read;
+    }
+    value = freeze(nextvalue);
+    // inform about the change?
+    PVField::postPut();
 }
 
 template<typename T>
 void DefaultPVArray<T>::serialize(ByteBuffer *pbuffer,
-        SerializableControl *pflusher, size_t offset, size_t count) const {
-    // cache
-    size_t length = this->getLength();
+        SerializableControl *pflusher, size_t offset, size_t count) const
+{
+    //TODO: avoid incrementing the ref counter...
+    const_svector temp(value);
+    temp.slice(offset, count);
+    count = temp.size();
 
-    // check bounds
-    if(offset<0)
-        offset = 0;
-    else if(offset>length) offset = length;
-    if(count<0) count = length;
+    SerializeHelper::writeSize(temp.size(), pbuffer, pflusher);
 
-    size_t maxCount = length-offset;
-    if(count>maxCount) count = maxCount;
+    const T* cur = temp.data();
 
-    // write
-    SerializeHelper::writeSize(count, pbuffer, pflusher);
-    //if (count == 0) return; pcontrol->ensureData(sizeof(T)-1); pbuffer->align(sizeof(T));
-    size_t end = offset+count;
-    size_t i = offset;
-    while(true) {
-        
-        /*
-        size_t maxIndex = min<int>(end-i, (int)(pbuffer->getRemaining()/sizeof(T)))+i;
-        for(; i<maxIndex; i++)
-            pbuffer->put<T>(value[i]);
-        */
-        
-        size_t maxCount = min<int>(end-i, (int)(pbuffer->getRemaining()/sizeof(T)));
-        T * pvalue = const_cast<T *>(get());
-        pbuffer->putArray(pvalue+i, maxCount);
-        i += maxCount;
-        
-        if(i<end)
+    // try to avoid copying into the buffer
+    // this is only possible if we do not need to do endian-swapping
+    if (!pbuffer->reverse<T>())
+        if (pflusher->directSerialize(pbuffer, (const char*)cur, count, sizeof(T)))
+            return;
+
+    while(count) {
+        const size_t empty = pbuffer->getRemaining();
+        const size_t space_for = empty/sizeof(T);
+
+        if(space_for==0) {
             pflusher->flushSerializeBuffer();
-        else
-            break;
+            // Can we be certain that more space is now free???
+            // If not then we spinnnnnnnnn
+            continue;
+        }
+
+        const size_t n2send = std::min(count, space_for);
+
+        pbuffer->putArray(cur, n2send);
+        cur += n2send;
+        count -= n2send;
     }
 }
 
-// specializations for String
+// specializations for string
 
 template<>
-void DefaultPVArray<String>::deserialize(ByteBuffer *pbuffer,
+void DefaultPVArray<string>::deserialize(ByteBuffer *pbuffer,
         DeserializableControl *pcontrol) {
     size_t size = SerializeHelper::readSize(pbuffer, pcontrol);
-    if(size>=0) {
-        // prepare array, if necessary
-        if(size>getCapacity()) setCapacity(size);
-        // set new length
-        setLength(size);
-        // retrieve value from the buffer
-        String * pvalue = get();
-        for(size_t i = 0; i<size; i++) {
-            pvalue[i] = SerializeHelper::deserializeString(pbuffer,
-                    pcontrol);
-        }
-        // inform about the change?
-        postPut();
+
+    svector nextvalue(thaw(value));
+
+    // Decide if we must re-allocate
+    if(size > nextvalue.size() || !nextvalue.unique())
+        nextvalue.resize(size);
+    else if(size < nextvalue.size())
+        nextvalue.slice(0, size);
+
+
+    string * pvalue = nextvalue.data();
+    for(size_t i = 0; i<size; i++) {
+        pvalue[i] = SerializeHelper::deserializeString(pbuffer,
+                                                       pcontrol);
     }
-    // TODO null arrays (size == -1) not supported
+    value = freeze(nextvalue);
+    // inform about the change?
+    postPut();
 }
 
 template<>
-void DefaultPVArray<String>::serialize(ByteBuffer *pbuffer,
+void DefaultPVArray<string>::serialize(ByteBuffer *pbuffer,
         SerializableControl *pflusher, size_t offset, size_t count) const {
-    size_t length = getLength();
 
-    // check bounds
-    if(offset<0)
-        offset = 0;
-    else if(offset>length) offset = length;
-    if(count<0) count = length;
+    const_svector temp(value);
+    temp.slice(offset, count);
 
-    size_t maxCount = length-offset;
-    if(count>maxCount) count = maxCount;
+    SerializeHelper::writeSize(temp.size(), pbuffer, pflusher);
 
-    // write
-    SerializeHelper::writeSize(count, pbuffer, pflusher);
-    size_t end = offset+count;
-    String * pvalue = get();
-    for(size_t i = offset; i<end; i++) {
+    const string * pvalue = temp.data();
+    for(size_t i = 0; i<temp.size(); i++) {
         SerializeHelper::serializeString(pvalue[i], pbuffer, pflusher);
     }
 }
@@ -449,7 +415,7 @@ typedef DefaultPVArray<uint32> BasePVUIntArray;
 typedef DefaultPVArray<uint64> BasePVULongArray;
 typedef DefaultPVArray<float> BasePVFloatArray;
 typedef DefaultPVArray<double> BasePVDoubleArray;
-typedef DefaultPVArray<String> BasePVStringArray;
+typedef DefaultPVArray<string> BasePVStringArray;
 
 // Factory
 
@@ -476,6 +442,14 @@ PVFieldPtr PVDataCreate::createPVField(FieldConstPtr const & field)
          StructureArrayConstPtr xx = static_pointer_cast<const StructureArray>(field);
          return createPVStructureArray(xx);
      }
+     case union_: {
+         UnionConstPtr xx = static_pointer_cast<const Union>(field);
+         return createPVUnion(xx);
+     }
+     case unionArray: {
+         UnionArrayConstPtr xx = static_pointer_cast<const UnionArray>(field);
+         return createPVUnionArray(xx);
+     }
      }
      throw std::logic_error("PVDataCreate::createPVField should never get here");
 }
@@ -512,6 +486,21 @@ PVFieldPtr PVDataCreate::createPVField(PVFieldPtr const & fieldToClone)
              getConvert()->copyStructureArray(from, to);
              return to;
          }
+     case union_:
+         {
+             PVUnionPtr pvUnion
+                   = static_pointer_cast<PVUnion>(fieldToClone);
+             return createPVUnion(pvUnion);
+         }
+     case unionArray:
+         {
+             PVUnionArrayPtr from
+                 = static_pointer_cast<PVUnionArray>(fieldToClone);
+             UnionArrayConstPtr unionArray = from->getUnionArray();
+             PVUnionArrayPtr to = createPVUnionArray(unionArray);
+             getConvert()->copyUnionArray(from, to);
+             return to;
+         }
      }
      throw std::logic_error("PVDataCreate::createPVField should never get here");
 }
@@ -560,16 +549,6 @@ PVScalarPtr PVDataCreate::createPVScalar(PVScalarPtr const & scalarToClone)
      ScalarType scalarType = scalarToClone->getScalar()->getScalarType();
      PVScalarPtr pvScalar = createPVScalar(scalarType);
      getConvert()->copyScalar(scalarToClone, pvScalar);
-     PVAuxInfoPtr from = scalarToClone->getPVAuxInfo();
-     PVAuxInfoPtr to = pvScalar->getPVAuxInfo();
-     PVAuxInfo::PVInfoMap & map = from->getInfoMap();
-     for(PVAuxInfo::PVInfoIter iter = map.begin(); iter!= map.end(); ++iter) {
-         String key = iter->first;
-         PVScalarPtr pvFrom = iter->second;
-         ScalarConstPtr scalar = pvFrom->getScalar();
-         PVScalarPtr pvTo = to->createInfo(key,scalar->getScalarType());
-         getConvert()->copyScalar(pvFrom,pvTo);
-     }
      return pvScalar;
 }
 
@@ -618,17 +597,7 @@ PVScalarArrayPtr PVDataCreate::createPVScalarArray(
 {
      PVScalarArrayPtr pvArray = createPVScalarArray(
           arrayToClone->getScalarArray()->getElementType());
-     getConvert()->copyScalarArray(arrayToClone,0, pvArray,0,arrayToClone->getLength());
-     PVAuxInfoPtr from = arrayToClone->getPVAuxInfo();
-     PVAuxInfoPtr to = pvArray->getPVAuxInfo();
-     PVAuxInfo::PVInfoMap & map = from->getInfoMap();
-     for(PVAuxInfo::PVInfoIter iter = map.begin(); iter!= map.end(); ++iter) {
-         String key = iter->first;
-         PVScalarPtr pvFrom = iter->second;
-         ScalarConstPtr scalar = pvFrom->getScalar();
-         PVScalarPtr pvTo = to->createInfo(key,scalar->getScalarType());
-         getConvert()->copyScalar(pvFrom,pvTo);
-     }
+     pvArray->assign(*arrayToClone.get());
     return pvArray;
 }
 
@@ -644,6 +613,28 @@ PVStructurePtr PVDataCreate::createPVStructure(
      return PVStructurePtr(new PVStructure(structure));
 }
 
+PVUnionArrayPtr PVDataCreate::createPVUnionArray(
+        UnionArrayConstPtr const & unionArray)
+{
+     return PVUnionArrayPtr(new PVUnionArray(unionArray));
+}
+
+PVUnionPtr PVDataCreate::createPVUnion(
+        UnionConstPtr const & punion)
+{
+     return PVUnionPtr(new PVUnion(punion));
+}
+
+PVUnionPtr PVDataCreate::createPVVariantUnion()
+{
+     return PVUnionPtr(new PVUnion(fieldCreate->createVariantUnion()));
+}
+
+PVUnionArrayPtr PVDataCreate::createPVVariantUnionArray()
+{
+     return PVUnionArrayPtr(new PVUnionArray(fieldCreate->createVariantUnionArray()));
+}
+
 PVStructurePtr PVDataCreate::createPVStructure(
         StringArray const & fieldNames,PVFieldPtrArray const & pvFields)
 {
@@ -659,6 +650,7 @@ PVStructurePtr PVDataCreate::createPVStructure(PVStructurePtr const & structToCl
 {
     FieldConstPtrArray field;
     if(structToClone==0) {
+        // is this correct?!
         FieldConstPtrArray fields(0);
         StringArray fieldNames(0);
         StructureConstPtr structure = fieldCreate->createStructure(fieldNames,fields);
@@ -670,6 +662,16 @@ PVStructurePtr PVDataCreate::createPVStructure(PVStructurePtr const & structToCl
     return pvStructure;
 }
 
+PVUnionPtr PVDataCreate::createPVUnion(PVUnionPtr const & unionToClone)
+{
+    PVUnionPtr punion(new PVUnion(unionToClone->getUnion()));
+    // set cloned value
+    punion->set(unionToClone->getSelectedIndex(), createPVField(unionToClone->get()));
+    return punion;
+}
+
+// TODO not thread-safe (local static initializers)
+// TODO replace with non-locking singleton pattern
 PVDataCreatePtr PVDataCreate::getPVDataCreate()
 {
     static PVDataCreatePtr pvDataCreate;

src/factory/PVField.cpp

@@ -11,6 +11,8 @@
 #include <cstdlib>
 #include <string>
 #include <cstdio>
+
+#define epicsExportSharedSymbols
 #include <pv/lock.h>
 #include <pv/pvData.h>
 #include <pv/factory.h>
@@ -18,70 +20,21 @@
 
 using std::tr1::const_pointer_cast;
 using std::size_t;
+using std::string;
 
 namespace epics { namespace pvData {
 
-
 PVField::PVField(FieldConstPtr field)
 : notImplemented("not implemented"),
   parent(NULL),field(field),
   fieldOffset(0), nextFieldOffset(0),
-  immutable(false),
-  convert(getConvert())
+  immutable(false)
 {
 }
 
 PVField::~PVField()
 { }
 
-void PVField::message(
-    String message,
-    MessageType messageType,
-    String fullFieldName)  
-{
-    if(parent!=NULL) {
-        if(fullFieldName.length()>0) {
-            fullFieldName = fieldName + '.' + fullFieldName;
-        } else {
-            fullFieldName = fieldName;
-        }
-        parent->message(message,messageType,fullFieldName);
-        return;
-    }
-    message = fullFieldName + " " + message;
-    if(requester) {
-        requester->message(message,messageType);
-    } else {
-        printf("%s %s %s\n",
-            getMessageTypeName(messageType).c_str(),
-            fieldName.c_str(),
-            message.c_str());
-    }
-}
-
-void PVField::message(String message,MessageType messageType)  
-{
-    PVField::message(message,messageType,"");
-}
-
-String PVField::getFieldName() const
-{
-    return fieldName;
-}
-
-void PVField::setRequester(RequesterPtr const &req)
-{
-    if(parent!=NULL) {
-        throw std::logic_error(
-            "PVField::setRequester only legal for top level structure");
-    }
-    if(requester.get()!=NULL) {
-        if(requester.get()==req.get()) return;
-        throw std::logic_error(
-            "PVField::setRequester requester is already present");
-    }
-    requester = req;
-}
 
 size_t PVField::getFieldOffset() const
 {
@@ -101,12 +54,6 @@ size_t PVField::getNumberFields() const
     return (nextFieldOffset - fieldOffset);
 }
 
-PVAuxInfoPtr & PVField::getPVAuxInfo(){
-    if(pvAuxInfo.get()==NULL) {
-        pvAuxInfo = PVAuxInfoPtr(new PVAuxInfo(this));
-    }
-    return pvAuxInfo;
-}
 
 bool PVField::isImmutable() const {return immutable;}
 
@@ -116,49 +63,9 @@ const FieldConstPtr & PVField::getField() const {return field;}
 
 PVStructure *PVField::getParent() const {return parent;}
 
-void PVField::replacePVField(const PVFieldPtr & newPVField)
-{
-    if(parent==NULL) {
-        throw std::logic_error("no parent");
-    }
-    PVFieldPtrArray  pvFields = parent->getPVFields();
-    StructureConstPtr structure = parent->getStructure();
-    StringArray fieldNames = structure->getFieldNames();
-    for(size_t i=0; i<fieldNames.size(); i++) {
-        if(newPVField->getFieldName().compare(fieldNames[i]) == 0) {
-            pvFields[i] = newPVField;
-            return;
-        }
-    }
-    throw std::logic_error("Did not find field in parent");
-}
-
-void PVField::replaceField(FieldConstPtr &xxx)
-{
-    field = xxx;
-}
-
-void PVField::renameField(String const & newName)
-{
-    if(parent==NULL) {
-        throw std::logic_error("no parent");
-    }
-    std::tr1::shared_ptr<Structure> parentStructure = const_pointer_cast<Structure>(
-         parent->getStructure());
-    PVFieldPtrArray  pvFields = parent->getPVFields();
-    for(size_t i=0; i<pvFields.size(); i++) {
-         if(pvFields[i].get()==this) {
-             parentStructure->renameField(i,newName);
-             fieldName = newName;
-             return;
-         }
-    }
-    throw std::logic_error("Did not find field in parent");
-}
-
 void PVField::postPut() 
 {
-   if(postHandler!=NULL) postHandler->postPut();
+   if(postHandler.get()!=NULL) postHandler->postPut();
 }
 
 void PVField::setPostHandler(PostHandlerPtr const &handler)
@@ -172,7 +79,7 @@ void PVField::setPostHandler(PostHandlerPtr const &handler)
     postHandler = handler;
 }
 
-void PVField::setParentAndName(PVStructure * xxx,String const & name)
+void PVField::setParentAndName(PVStructure * xxx,string const & name)
 {
     parent = xxx;
     fieldName = name;
@@ -180,32 +87,25 @@ void PVField::setParentAndName(PVStructure * xxx,String const & name)
 
 bool PVField::equals(PVField &pv)
 {
-    return convert->equals(*this,pv);
+    return pv==*this;
 }
 
-void PVField::toString(StringBuilder buf)
+std::ostream& operator<<(std::ostream& o, const PVField& f)
 {
-    toString(buf,0);
-}
+	return f.dumpValue(o);
+};
 
-void PVField::toString(StringBuilder buf,int indentLevel) 
+string PVField::getFullName() const
 {
-   convert->getString(buf,this,indentLevel);
-   if(pvAuxInfo.get()!=NULL) pvAuxInfo->toString(buf,indentLevel);
+    string ret(fieldName);
+    for(PVField *fld=getParent(); fld; fld=fld->getParent())
+    {
+        if(fld->getFieldName().size()==0) break;
+        ret = fld->getFieldName() + '.' + ret;
+    }
+    return ret;
 }
 
-std::ostream& PVField::dumpValue(std::ostream& o) const
-{
-	// default implementation
-	// each PVField class should implement it to avoid switch statement
-	// and string reallocation
-	String tmp;
-	convert->getString(&tmp,this,0);
-	return o << tmp;
-}
-
-std::ostream& operator<<(std::ostream& o, const PVField& f) { return f.dumpValue(o); };
-
 void PVField::computeOffset(const PVField   *  pvField) {
     const PVStructure * pvTop = pvField->getParent();
     if(pvTop==NULL) {
@@ -219,8 +119,8 @@ void PVField::computeOffset(const PVField   *  pvField) {
     } else {
         while(pvTop->getParent()!=NULL) pvTop = pvTop->getParent();
     }
-    int offset = 0;
-    int nextOffset = 1;
+    size_t offset = 0;
+    size_t nextOffset = 1;
     PVFieldPtrArray  pvFields = pvTop->getPVFields();
     for(size_t i=0; i < pvTop->getStructure()->getNumberFields(); i++) {
         offset = nextOffset;
@@ -229,7 +129,9 @@ void PVField::computeOffset(const PVField   *  pvField) {
         switch(field->getType()) {
         case scalar:
         case scalarArray:
-        case structureArray:{
+        case structureArray:
+        case union_:
+        case unionArray: {
             nextOffset++;
             pvField->fieldOffset = offset;
             pvField->nextFieldOffset = nextOffset;
@@ -248,8 +150,8 @@ void PVField::computeOffset(const PVField   *  pvField) {
 }
 
 void PVField::computeOffset(const PVField   *  pvField,size_t offset) {
-    int beginOffset = offset;
-    int nextOffset = offset + 1;
+    size_t beginOffset = offset;
+    size_t nextOffset = offset + 1;
     const PVStructure *pvStructure = static_cast<const PVStructure *>(pvField);
     const PVFieldPtrArray  pvFields = pvStructure->getPVFields();
     for(size_t i=0; i < pvStructure->getStructure()->getNumberFields(); i++) {
@@ -259,7 +161,9 @@ void PVField::computeOffset(const PVField   *  pvField,size_t offset) {
         switch(field->getType()) {
             case scalar:
             case scalarArray:
-            case structureArray: {
+            case structureArray:
+            case union_:
+            case unionArray: {
                 nextOffset++;
                 pvSubField->fieldOffset = offset;
                 pvSubField->nextFieldOffset = nextOffset;

src/factory/PVScalar.cpp

@@ -11,6 +11,8 @@
 #include <cstdlib>
 #include <string>
 #include <cstdio>
+
+#define epicsExportSharedSymbols
 #include <pv/pvData.h>
 #include <pv/factory.h>
 

src/factory/PVScalarArray.cpp

@@ -11,6 +11,8 @@
 #include <cstdlib>
 #include <string>
 #include <cstdio>
+
+#define epicsExportSharedSymbols
 #include <pv/pvData.h>
 #include <pv/factory.h>
 
@@ -28,16 +30,4 @@ namespace epics { namespace pvData {
        return static_pointer_cast<const ScalarArray>(PVField::getField());
     }
 
-    template<>
-    std::ostream& PVValueArray<int8>::dumpValue(std::ostream& o, size_t index) const
-    {
-    	return o << static_cast<int>(*(get() + index));
-    }
-
-    template<>
-    std::ostream& PVValueArray<uint8>::dumpValue(std::ostream& o, size_t index) const
-    {
-    	return o << static_cast<unsigned int>(*(get() + index));
-    }
-
 }}

src/factory/PVStructure.cpp

@@ -0,0 +1,385 @@
+/*PVStructure.cpp*/
+/**
+ * Copyright - See the COPYRIGHT that is included with this distribution.
+ * EPICS pvData is distributed subject to a Software License Agreement found
+ * in file LICENSE that is included with this distribution.
+ */
+/**
+ *  @author mrk
+ */
+#include <cstddef>
+#include <cstdlib>
+#include <string>
+#include <cstdio>
+#include <vector>
+
+#define epicsExportSharedSymbols
+#include <pv/pvData.h>
+#include <pv/pvIntrospect.h>
+#include <pv/convert.h>
+#include <pv/factory.h>
+#include <pv/bitSet.h>
+
+using std::tr1::static_pointer_cast;
+using std::size_t;
+using std::string;
+
+namespace epics { namespace pvData {
+
+PVFieldPtr PVStructure::nullPVField;
+PVBooleanPtr PVStructure::nullPVBoolean;
+PVBytePtr PVStructure::nullPVByte;
+PVShortPtr PVStructure::nullPVShort;
+PVIntPtr PVStructure::nullPVInt;
+PVLongPtr PVStructure::nullPVLong;
+PVUBytePtr PVStructure::nullPVUByte;
+PVUShortPtr PVStructure::nullPVUShort;
+PVUIntPtr PVStructure::nullPVUInt;
+PVULongPtr PVStructure::nullPVULong;
+PVFloatPtr PVStructure::nullPVFloat;
+PVDoublePtr PVStructure::nullPVDouble;
+PVStringPtr PVStructure::nullPVString;
+PVStructurePtr PVStructure::nullPVStructure;
+PVStructureArrayPtr PVStructure::nullPVStructureArray;
+PVUnionPtr PVStructure::nullPVUnion;
+PVUnionArrayPtr PVStructure::nullPVUnionArray;
+PVScalarArrayPtr PVStructure::nullPVScalarArray;
+
+static PVFieldPtr findSubField(
+    string const &fieldName,
+    const PVStructure *pvStructure);
+
+PVStructure::PVStructure(StructureConstPtr const & structurePtr)
+: PVField(structurePtr),
+  structurePtr(structurePtr),
+  extendsStructureName("")
+{
+    size_t numberFields = structurePtr->getNumberFields();
+    FieldConstPtrArray fields = structurePtr->getFields();
+    StringArray fieldNames = structurePtr->getFieldNames();
+//    PVFieldPtrArray * xxx = const_cast<PVFieldPtrArray *>(&pvFields);
+    pvFields.reserve(numberFields);
+    PVDataCreatePtr pvDataCreate = getPVDataCreate();
+    for(size_t i=0; i<numberFields; i++) {
+        pvFields.push_back(pvDataCreate->createPVField(fields[i]));
+    }
+    for(size_t i=0; i<numberFields; i++) {
+    	pvFields[i]->setParentAndName(this,fieldNames[i]);
+    }
+}
+
+PVStructure::PVStructure(StructureConstPtr const & structurePtr,
+    PVFieldPtrArray const & pvs
+)
+: PVField(structurePtr),
+  structurePtr(structurePtr),
+  extendsStructureName("")
+{
+    size_t numberFields = structurePtr->getNumberFields();
+    StringArray fieldNames = structurePtr->getFieldNames();
+    pvFields.reserve(numberFields);
+    for(size_t i=0; i<numberFields; i++) {
+        pvFields.push_back(pvs[i]);
+    }
+    for(size_t i=0; i<numberFields; i++) {
+        pvFields[i]->setParentAndName(this,fieldNames[i]);
+    }
+}
+
+PVStructure::~PVStructure()
+{
+}
+
+void PVStructure::setImmutable()
+{
+    size_t numFields = pvFields.size();
+    for(size_t i=0; i<numFields; i++) {
+        PVFieldPtr pvField  = pvFields[i];
+        pvField->setImmutable();
+    }
+    PVField::setImmutable();
+}
+
+StructureConstPtr PVStructure::getStructure() const
+{
+    return structurePtr;
+}
+
+const PVFieldPtrArray & PVStructure::getPVFields() const
+{
+    return pvFields;
+}
+
+PVFieldPtr  PVStructure::getSubField(string const &fieldName) const
+{
+    return findSubField(fieldName,this);
+}
+
+
+PVFieldPtr  PVStructure::getSubField(size_t fieldOffset) const
+{
+    if(fieldOffset<=getFieldOffset()) {
+        return nullPVField;
+    }
+    if(fieldOffset>getNextFieldOffset()) return nullPVField;
+    size_t numFields = pvFields.size();
+    for(size_t i=0; i<numFields; i++) {
+        PVFieldPtr pvField  = pvFields[i];
+        if(pvField->getFieldOffset()==fieldOffset) return pvFields[i];
+        if(pvField->getNextFieldOffset()<=fieldOffset) continue;
+        if(pvField->getField()->getType()==structure) {
+            PVStructure *pvStructure = static_cast<PVStructure *>(pvField.get());
+            return pvStructure->getSubField(fieldOffset);
+        }
+    }
+    throw std::logic_error("PVStructure.getSubField: Logic error");
+}
+
+
+PVBooleanPtr PVStructure::getBooleanField(string const &fieldName)
+{
+    return getSubField<PVBoolean>(fieldName);
+}
+
+PVBytePtr PVStructure::getByteField(string const &fieldName)
+{
+    return getSubField<PVByte>(fieldName);
+}
+
+PVShortPtr PVStructure::getShortField(string const &fieldName)
+{
+    return getSubField<PVShort>(fieldName);
+}
+
+PVIntPtr PVStructure::getIntField(string const &fieldName)
+{
+    return getSubField<PVInt>(fieldName);
+}
+
+PVLongPtr PVStructure::getLongField(string const &fieldName)
+{
+    return getSubField<PVLong>(fieldName);
+}
+
+PVUBytePtr PVStructure::getUByteField(string const &fieldName)
+{
+    return getSubField<PVUByte>(fieldName);
+}
+
+PVUShortPtr PVStructure::getUShortField(string const &fieldName)
+{
+    return getSubField<PVUShort>(fieldName);
+}
+
+PVUIntPtr PVStructure::getUIntField(string const &fieldName)
+{
+    return getSubField<PVUInt>(fieldName);
+}
+
+PVULongPtr PVStructure::getULongField(string const &fieldName)
+{
+    return getSubField<PVULong>(fieldName);
+}
+
+PVFloatPtr PVStructure::getFloatField(string const &fieldName)
+{
+    return getSubField<PVFloat>(fieldName);
+}
+
+PVDoublePtr PVStructure::getDoubleField(string const &fieldName)
+{
+    return getSubField<PVDouble>(fieldName);
+}
+
+PVStringPtr PVStructure::getStringField(string const &fieldName)
+{
+    return getSubField<PVString>(fieldName);
+}
+
+PVStructurePtr PVStructure::getStructureField(string const &fieldName)
+{
+    return getSubField<PVStructure>(fieldName);
+}
+
+PVUnionPtr PVStructure::getUnionField(string const &fieldName)
+{
+    return getSubField<PVUnion>(fieldName);
+}
+
+PVScalarArrayPtr PVStructure::getScalarArrayField(
+    string const &fieldName,ScalarType elementType)
+{
+    PVFieldPtr pvField  = findSubField(fieldName,this);
+    if(pvField.get()==NULL) {
+        return nullPVScalarArray;
+    }
+    FieldConstPtr field = pvField->getField();
+    Type type = field->getType();
+    if(type!=scalarArray) {
+        return nullPVScalarArray;
+    }
+    ScalarArrayConstPtr pscalarArray
+        = static_pointer_cast<const ScalarArray>(pvField->getField());
+    if(pscalarArray->getElementType()!=elementType) {
+        return nullPVScalarArray;
+    }
+    return std::tr1::static_pointer_cast<PVScalarArray>(pvField);
+}
+
+PVStructureArrayPtr PVStructure::getStructureArrayField(
+    string const &fieldName)
+{
+    return getSubField<PVStructureArray>(fieldName);
+}
+
+PVUnionArrayPtr PVStructure::getUnionArrayField(
+    string const &fieldName)
+{
+    return getSubField<PVUnionArray>(fieldName);
+}
+
+
+void PVStructure::serialize(ByteBuffer *pbuffer,
+        SerializableControl *pflusher) const {
+    size_t fieldsSize = pvFields.size();
+    for(size_t i = 0; i<fieldsSize; i++)
+        pvFields[i]->serialize(pbuffer, pflusher);
+}
+
+void PVStructure::deserialize(ByteBuffer *pbuffer,
+        DeserializableControl *pcontrol) {
+    size_t fieldsSize = pvFields.size();
+    for(size_t i = 0; i<fieldsSize; i++)
+        pvFields[i]->deserialize(pbuffer, pcontrol);
+
+}
+
+void PVStructure::serialize(ByteBuffer *pbuffer,
+        SerializableControl *pflusher, BitSet *pbitSet) const {
+	PVStructure* nonConstThis = const_cast<PVStructure*>(this);
+    size_t numberFields = nonConstThis->getNumberFields();
+    size_t offset = nonConstThis->getFieldOffset();
+    int32 next = pbitSet->nextSetBit(static_cast<uint32>(offset));
+
+    // no more changes or no changes in this structure
+    if(next<0||next>=static_cast<int32>(offset+numberFields)) return;
+
+    // entire structure
+    if(static_cast<int32>(offset)==next) {
+        serialize(pbuffer, pflusher);
+        return;
+    }
+
+    size_t fieldsSize = pvFields.size();
+    for(size_t i = 0; i<fieldsSize; i++) {
+        PVFieldPtr pvField = pvFields[i];
+        offset = pvField->getFieldOffset();
+        int32 inumberFields = static_cast<int32>(pvField->getNumberFields());
+        next = pbitSet->nextSetBit(static_cast<uint32>(offset));
+
+        // no more changes
+        if(next<0) return;
+        //  no change in this pvField
+        if(next>=static_cast<int32>(offset+inumberFields)) continue;
+
+        // serialize field or fields
+        if(inumberFields==1) {
+            pvField->serialize(pbuffer, pflusher);
+        } else {
+            PVStructurePtr pvStructure = std::tr1::static_pointer_cast<PVStructure>(pvField);
+            pvStructure->serialize(pbuffer, pflusher, pbitSet);
+       }
+    }
+}
+
+void PVStructure::deserialize(ByteBuffer *pbuffer,
+        DeserializableControl *pcontrol, BitSet *pbitSet) {
+    size_t offset = getFieldOffset();
+    size_t numberFields = getNumberFields();
+    int32 next = pbitSet->nextSetBit(static_cast<uint32>(offset));
+
+    // no more changes or no changes in this structure
+    if(next<0||next>=static_cast<int32>(offset+numberFields)) return;
+
+    // entire structure
+    if(static_cast<int32>(offset)==next) {
+        deserialize(pbuffer, pcontrol);
+        return;
+    }
+
+    size_t fieldsSize = pvFields.size();
+    for(size_t i = 0; i<fieldsSize; i++) {
+        PVFieldPtr pvField = pvFields[i];
+        offset = pvField->getFieldOffset();
+        int32 inumberFields = static_cast<int32>(pvField->getNumberFields());
+        next = pbitSet->nextSetBit(static_cast<uint32>(offset));
+        // no more changes
+        if(next<0) return;
+        //  no change in this pvField
+        if(next>=static_cast<int32>(offset+inumberFields)) continue;
+
+        // deserialize field or fields
+        if(inumberFields==1) {
+            pvField->deserialize(pbuffer, pcontrol);
+        } else {
+            PVStructurePtr pvStructure = std::tr1::static_pointer_cast<PVStructure>(pvField);
+            pvStructure->deserialize(pbuffer, pcontrol, pbitSet);
+        }
+    }
+}
+
+static PVFieldPtr findSubField(
+    string const & fieldName,
+    PVStructure const *pvStructure)
+{
+    if( fieldName.length()<1) return PVFieldPtr();
+    string::size_type index = fieldName.find('.');
+    string name = fieldName;
+    string restOfName = string();
+    if(index>0) {
+        name = fieldName.substr(0, index);
+        if(fieldName.length()>index) {
+            restOfName = fieldName.substr(index+1);
+        }
+    }
+    PVFieldPtrArray  pvFields = pvStructure->getPVFields();
+    PVFieldPtr pvField;
+    size_t numFields = pvStructure->getStructure()->getNumberFields();
+    for(size_t i=0; i<numFields; i++) {
+        pvField = pvFields[i];
+        size_t result = pvField->getFieldName().compare(name);
+        if(result==0) {
+            if(restOfName.length()==0) return pvFields[i];
+            if(pvField->getField()->getType()!=structure) return PVFieldPtr();
+            PVStructurePtr pvStructure =
+                std::tr1::static_pointer_cast<PVStructure>(pvField);
+            return findSubField(restOfName,pvStructure.get());
+        }
+    }
+    return PVFieldPtr();
+}
+
+std::ostream& PVStructure::dumpValue(std::ostream& o) const
+{
+    o << format::indent() << getStructure()->getID() << ' ' << getFieldName();
+    o << std::endl;
+    {
+    	format::indent_scope s(o);
+
+		PVFieldPtrArray const & fieldsData = getPVFields();
+		if (fieldsData.size() != 0) {
+			size_t length = getStructure()->getNumberFields();
+			for(size_t i=0; i<length; i++) {
+				PVFieldPtr fieldField = fieldsData[i];
+				Type type = fieldField->getField()->getType();
+				if (type == scalar || type == scalarArray)
+					o << format::indent() << fieldField->getField()->getID() << ' ' << fieldField->getFieldName() << ' ' << *(fieldField.get()) << std::endl;
+				else
+					o << *(fieldField.get());
+			}
+		}
+    }
+ 	return o;
+}
+
+}}

src/factory/PVStructureArray.cpp

@@ -0,0 +1,217 @@
+/*PVStructureArray.cpp*/
+/**
+ * Copyright - See the COPYRIGHT that is included with this distribution.
+ * EPICS pvData is distributed subject to a Software License Agreement found
+ * in file LICENSE that is included with this distribution.
+ */
+/**
+ *  @author mrk
+ */
+#include <cstddef>
+#include <cstdlib>
+#include <string>
+#include <cstdio>
+
+#define epicsExportSharedSymbols
+#include <pv/pvData.h>
+#include <pv/convert.h>
+#include <pv/factory.h>
+#include <pv/serializeHelper.h>
+
+using std::tr1::static_pointer_cast;
+using std::size_t;
+
+namespace epics { namespace pvData {
+
+size_t PVStructureArray::append(size_t number)
+{
+    svector data(reuse());
+    data.resize(data.size()+number);
+
+    StructureConstPtr structure = structureArray->getStructure();
+
+    PVDataCreatePtr pvDataCreate = getPVDataCreate();
+    for(svector::reverse_iterator it = data.rbegin(); number; ++it, --number)
+        *it = pvDataCreate->createPVStructure(structure);
+
+    size_t newLength = data.size();
+
+    const_svector cdata(freeze(data));
+    swap(cdata);
+
+    return newLength;
+}
+
+bool PVStructureArray::remove(size_t offset,size_t number)
+{
+    if(number==0)
+        return true;
+    else if(offset+number>getLength())
+        return false;
+
+    svector vec(reuse());
+
+    size_t length = vec.size();
+
+    for(size_t i = offset; i+number < length; i++) {
+         vec[i].swap(vec[i + number]);
+    }
+
+    vec.resize(length - number);
+    const_svector cdata(freeze(vec));
+    swap(cdata);
+
+    return true;
+}
+
+void PVStructureArray::compress() {
+    svector vec(reuse()); // TODO: check for first NULL before realloc
+
+    size_t length = vec.size();
+    size_t newLength = 0;
+
+    for(size_t i=0; i<length; i++) {
+        if(vec[i].get()!=NULL) {
+            newLength++;
+            continue;
+        }
+        // find first non 0
+        size_t notNull = 0;
+        for(size_t j=i+1;j<length;j++) {
+            if(vec[j].get()!=NULL) {
+                notNull = j;
+                break;
+            }
+        }
+        if(notNull!=0) {
+            vec[i] = vec[notNull];
+            vec[notNull].reset();
+            newLength++;
+            continue;
+         }
+         break;
+    }
+
+    vec.resize(newLength);
+    const_svector cdata(freeze(vec));
+    swap(cdata);
+}
+
+void PVStructureArray::setCapacity(size_t capacity)
+{
+    if(this->isCapacityMutable()) {
+        const_svector value;
+        swap(value);
+        if(value.capacity()<capacity) {
+            svector mvalue(thaw(value));
+            mvalue.reserve(capacity);
+            value = freeze(mvalue);
+        }
+        swap(value);
+    }
+}
+
+void PVStructureArray::setLength(size_t length)
+{
+    if(this->isImmutable())
+        THROW_EXCEPTION2(std::logic_error,"Immutable");
+    const_svector value;
+    swap(value);
+    if(length == value.size()) {
+        // nothing
+    } else if(length < value.size()) {
+        value.slice(0, length);
+    } else {
+        svector mvalue(thaw(value));
+        mvalue.resize(length);
+        value = freeze(mvalue);
+    }
+    swap(value);
+}
+
+void PVStructureArray::swap(const_svector &other)
+{
+    if(this->isImmutable())
+        THROW_EXCEPTION2(std::logic_error,"Immutable");
+
+    value.swap(other);
+}
+
+void PVStructureArray::serialize(ByteBuffer *pbuffer,
+        SerializableControl *pflusher) const {
+    serialize(pbuffer, pflusher, 0, getLength());
+}
+
+void PVStructureArray::deserialize(ByteBuffer *pbuffer,
+        DeserializableControl *pcontrol) {
+    svector data(reuse());
+
+    size_t size = SerializeHelper::readSize(pbuffer, pcontrol);
+    data.resize(size);
+
+    StructureConstPtr structure = structureArray->getStructure();
+
+    PVDataCreatePtr pvDataCreate = getPVDataCreate();
+
+    for(size_t i = 0; i<size; i++) {
+        pcontrol->ensureData(1);
+        size_t temp = pbuffer->getByte();
+        if(temp==0) {
+            data[i].reset();
+        }
+        else {
+            if(data[i].get()==NULL) {
+                data[i] = pvDataCreate->createPVStructure(structure);
+            }
+            data[i]->deserialize(pbuffer, pcontrol);
+        }
+    }
+    replace(freeze(data)); // calls postPut()
+}
+
+void PVStructureArray::serialize(ByteBuffer *pbuffer,
+        SerializableControl *pflusher, size_t offset, size_t count) const {
+
+    const_svector temp(view());
+    temp.slice(offset, count);
+
+    SerializeHelper::writeSize(temp.size(), pbuffer, pflusher);
+
+    for(size_t i = 0; i<count; i++) {
+        if(pbuffer->getRemaining()<1)
+            pflusher->flushSerializeBuffer();
+
+        if(temp[i].get()==NULL) {
+            pbuffer->putByte(0);
+        }
+        else {
+            pbuffer->putByte(1);
+            temp[i]->serialize(pbuffer, pflusher);
+        }
+    }
+}
+
+std::ostream& PVStructureArray::dumpValue(std::ostream& o) const
+{
+    o << format::indent() << getStructureArray()->getID() << ' ' << getFieldName() << std::endl;
+    size_t length = getLength();
+    if (length > 0)
+    {
+    	format::indent_scope s(o);
+
+        for (size_t i = 0; i < length; i++)
+        	dumpValue(o, i);
+    }
+
+    return o;
+}
+
+std::ostream& PVStructureArray::dumpValue(std::ostream& o, std::size_t index) const
+{
+    const_svector temp(view());
+    if(index<temp.size())
+        o << *temp[index];
+    return o;
+}
+
+}}

src/factory/PVUnion.cpp

@@ -0,0 +1,212 @@
+/*PVUnion.cpp*/
+/**
+ * Copyright - See the COPYRIGHT that is included with this distribution.
+ * EPICS pvData is distributed subject to a Software License Agreement found
+ * in file LICENSE that is included with this distribution.
+ */
+/**
+ *  @author mse
+ */
+#include <cstddef>
+#include <cstdlib>
+#include <string>
+#include <cstdio>
+#include <vector>
+
+#define epicsExportSharedSymbols
+#include <pv/pvData.h>
+#include <pv/pvIntrospect.h>
+#include <pv/convert.h>
+#include <pv/factory.h>
+#include <pv/serializeHelper.h>
+
+using std::tr1::static_pointer_cast;
+using std::size_t;
+using std::string;
+
+namespace epics { namespace pvData {
+	
+#define PVUNION_UNDEFINED_INDEX -1
+int32 PVUnion::UNDEFINED_INDEX = PVUNION_UNDEFINED_INDEX;
+
+PVUnion::PVUnion(UnionConstPtr const & unionPtr)
+: PVField(unionPtr),
+  unionPtr(unionPtr),
+  selector(PVUNION_UNDEFINED_INDEX),    // to allow out-of-order static initialization
+  value(),
+  variant(unionPtr->isVariant())
+{
+}
+
+#undef PVUNION_UNDEFINED_INDEX
+
+PVUnion::~PVUnion()
+{
+}
+
+UnionConstPtr PVUnion::getUnion() const
+{
+    return unionPtr;
+}
+
+PVFieldPtr PVUnion::get() const
+{
+    return value;
+}
+
+int32 PVUnion::getSelectedIndex() const
+{
+    return selector;
+}
+
+string PVUnion::getSelectedFieldName() const
+{
+    // no name for undefined and for variant unions
+    if (selector == UNDEFINED_INDEX)
+        return string();
+    else
+        return unionPtr->getFieldName(selector);
+}
+
+PVFieldPtr PVUnion::select(int32 index)
+{
+    // no change
+    if (selector == index)
+        return value;
+
+    if (index == UNDEFINED_INDEX)
+    {
+        selector = UNDEFINED_INDEX;
+        value.reset();
+        return value;
+    }
+    else if (variant)
+        throw std::invalid_argument("index out of bounds");
+    else if (index < 0 || index > static_cast<int32>(unionPtr->getFields().size()))
+        throw std::invalid_argument("index out of bounds");
+
+    FieldConstPtr field = unionPtr->getField(index);
+    selector = index;
+    value = getPVDataCreate()->createPVField(field);
+
+    return value;
+}
+	
+PVFieldPtr PVUnion::select(string const & fieldName)
+{
+    int32 index = variant ? -1 : static_cast<int32>(unionPtr->getFieldIndex(fieldName));
+	if (index == -1)
+        throw std::invalid_argument("no such fieldName");
+	return select(index);
+}
+	
+void PVUnion::set(PVFieldPtr const & value)
+{
+    set(selector, value);
+}
+
+void PVUnion::set(int32 index, PVFieldPtr const & value)
+{
+    if (variant && index != UNDEFINED_INDEX)
+        throw std::invalid_argument("index out of bounds");
+    else if (!variant)
+    {
+        if (index == UNDEFINED_INDEX)
+        {
+            // for undefined index we accept only null values
+            if (value.get())
+				throw std::invalid_argument("non-null value for index == UNDEFINED_INDEX");
+        }
+        else if (index < 0 || index > static_cast<int32>(unionPtr->getFields().size()))
+            throw std::invalid_argument("index out of bounds");
+
+        // value type must match
+        if (value->getField() != unionPtr->getField(index))
+			throw std::invalid_argument("selected field and its introspection data do not match");
+    }
+
+    selector = index;
+    this->value = value;
+    postPut();
+}
+
+void PVUnion::set(string const & fieldName, PVFieldPtr const & value)
+{
+    int32 index = variant ? -1 : static_cast<int32>(unionPtr->getFieldIndex(fieldName));
+    if (index == -1)
+        throw std::invalid_argument("no such fieldName");
+
+	set(index, value);
+}
+
+void PVUnion::serialize(ByteBuffer *pbuffer, SerializableControl *pflusher) const
+{
+    if (variant)
+    {
+        // write introspection data
+        if (value.get() == 0)
+            pbuffer->put((int8)-1);
+        else
+        {
+            pflusher->cachedSerialize(value->getField(), pbuffer);
+            value->serialize(pbuffer, pflusher);
+        }
+    }
+    else
+    {
+        // write selector value
+        SerializeHelper::writeSize(selector, pbuffer, pflusher);
+        // write value, no value for UNDEFINED_INDEX
+        if (selector != UNDEFINED_INDEX) 
+            value->serialize(pbuffer, pflusher);
+    }
+}
+
+void PVUnion::deserialize(ByteBuffer *pbuffer, DeserializableControl *pcontrol)
+{
+    if (variant)
+    {
+        FieldConstPtr field = pcontrol->cachedDeserialize(pbuffer);
+        if (field.get())
+        {
+            value = getPVDataCreate()->createPVField(field);
+            value->deserialize(pbuffer, pcontrol);
+        }
+        else
+            value.reset();
+    }
+    else
+    {
+        selector = static_cast<int32>(SerializeHelper::readSize(pbuffer, pcontrol));
+        if (selector != UNDEFINED_INDEX)
+        {
+            FieldConstPtr field = unionPtr->getField(selector);
+            value = getPVDataCreate()->createPVField(field);
+            value->deserialize(pbuffer, pcontrol);
+        }
+        else
+            value.reset();
+    }
+}
+
+std::ostream& PVUnion::dumpValue(std::ostream& o) const
+{
+    o << format::indent() << getUnion()->getID() << ' ' << getFieldName() << std::endl;
+    {
+    	format::indent_scope s(o);
+		PVFieldPtr fieldField = get();
+		if (fieldField.get() == NULL)
+		  o << format::indent() << "(none)" << std::endl;
+		else
+		{
+    		Type type = fieldField->getField()->getType();
+    		if (type == scalar || type == scalarArray)
+    			o << format::indent() << fieldField->getField()->getID() << ' ' << fieldField->getFieldName() << ' ' << *(fieldField.get()) << std::endl;
+    		else
+    			o << *(fieldField.get());
+	   } 
+    }
+ 	return o;
+}
+
+}}

src/factory/PVUnionArray.cpp

@@ -0,0 +1,217 @@
+/*PVUnionArray.cpp*/
+/**
+ * Copyright - See the COPYRIGHT that is included with this distribution.
+ * EPICS pvData is distributed subject to a Software License Agreement found
+ * in file LICENSE that is included with this distribution.
+ */
+/**
+ *  @author mrk
+ */
+#include <cstddef>
+#include <cstdlib>
+#include <string>
+#include <cstdio>
+
+#define epicsExportSharedSymbols
+#include <pv/pvData.h>
+#include <pv/convert.h>
+#include <pv/factory.h>
+#include <pv/serializeHelper.h>
+
+using std::tr1::static_pointer_cast;
+using std::size_t;
+
+namespace epics { namespace pvData {
+
+size_t PVUnionArray::append(size_t number)
+{
+    svector data(reuse());
+    data.resize(data.size()+number);
+
+    UnionConstPtr punion = unionArray->getUnion();
+
+    PVDataCreatePtr pvDataCreate = getPVDataCreate();
+    for(svector::reverse_iterator it = data.rbegin(); number; ++it, --number)
+        *it = pvDataCreate->createPVUnion(punion);
+
+    size_t newLength = data.size();
+
+    const_svector cdata(freeze(data));
+    swap(cdata);
+
+    return newLength;
+}
+
+bool PVUnionArray::remove(size_t offset,size_t number)
+{
+    if(number==0)
+        return true;
+    else if(offset+number>getLength())
+        return false;
+
+    svector vec(reuse());
+
+    size_t length = vec.size();
+
+    for(size_t i = offset; i+number < length; i++) {
+         vec[i].swap(vec[i + number]);
+    }
+
+    vec.resize(length - number);
+    const_svector cdata(freeze(vec));
+    swap(cdata);
+
+    return true;
+}
+
+void PVUnionArray::compress() {
+    svector vec(reuse()); // TODO: check for first NULL before realloc
+
+    size_t length = vec.size();
+    size_t newLength = 0;
+
+    for(size_t i=0; i<length; i++) {
+        if(vec[i].get()!=NULL) {
+            newLength++;
+            continue;
+        }
+        // find first non 0
+        size_t notNull = 0;
+        for(size_t j=i+1;j<length;j++) {
+            if(vec[j].get()!=NULL) {
+                notNull = j;
+                break;
+            }
+        }
+        if(notNull!=0) {
+            vec[i] = vec[notNull];
+            vec[notNull].reset();
+            newLength++;
+            continue;
+         }
+         break;
+    }
+
+    vec.resize(newLength);
+    const_svector cdata(freeze(vec));
+    swap(cdata);
+}
+
+void PVUnionArray::setCapacity(size_t capacity)
+{
+    if(this->isCapacityMutable()) {
+        const_svector value;
+        swap(value);
+        if(value.capacity()<capacity) {
+            svector mvalue(thaw(value));
+            mvalue.reserve(capacity);
+            value = freeze(mvalue);
+        }
+        swap(value);
+    }
+}
+
+void PVUnionArray::setLength(size_t length)
+{
+    if(this->isImmutable())
+        THROW_EXCEPTION2(std::logic_error,"Immutable");
+    const_svector value;
+    swap(value);
+    if(length == value.size()) {
+        // nothing
+    } else if(length < value.size()) {
+        value.slice(0, length);
+    } else {
+        svector mvalue(thaw(value));
+        mvalue.resize(length);
+        value = freeze(mvalue);
+    }
+    swap(value);
+}
+
+void PVUnionArray::swap(const_svector &other)
+{
+    if(this->isImmutable())
+        THROW_EXCEPTION2(std::logic_error,"Immutable");
+
+    value.swap(other);
+}
+
+void PVUnionArray::serialize(ByteBuffer *pbuffer,
+        SerializableControl *pflusher) const {
+    serialize(pbuffer, pflusher, 0, getLength());
+}
+
+void PVUnionArray::deserialize(ByteBuffer *pbuffer,
+        DeserializableControl *pcontrol) {
+    svector data(reuse());
+
+    size_t size = SerializeHelper::readSize(pbuffer, pcontrol);
+    data.resize(size);
+
+    UnionConstPtr punion = unionArray->getUnion();
+
+    PVDataCreatePtr pvDataCreate = getPVDataCreate();
+
+    for(size_t i = 0; i<size; i++) {
+        pcontrol->ensureData(1);
+        size_t temp = pbuffer->getByte();
+        if(temp==0) {
+            data[i].reset();
+        }
+        else {
+            if(data[i].get()==NULL) {
+                data[i] = pvDataCreate->createPVUnion(punion);
+            }
+            data[i]->deserialize(pbuffer, pcontrol);
+        }
+    }
+    replace(freeze(data)); // calls postPut()
+}
+
+void PVUnionArray::serialize(ByteBuffer *pbuffer,
+        SerializableControl *pflusher, size_t offset, size_t count) const {
+
+    const_svector temp(view());
+    temp.slice(offset, count);
+
+    SerializeHelper::writeSize(temp.size(), pbuffer, pflusher);
+
+    for(size_t i = 0; i<count; i++) {
+        if(pbuffer->getRemaining()<1)
+            pflusher->flushSerializeBuffer();
+
+        if(temp[i].get()==NULL) {
+            pbuffer->putByte(0);
+        }
+        else {
+            pbuffer->putByte(1);
+            temp[i]->serialize(pbuffer, pflusher);
+        }
+    }
+}
+
+std::ostream& PVUnionArray::dumpValue(std::ostream& o) const
+{
+    o << format::indent() << getUnionArray()->getID() << ' ' << getFieldName() << std::endl;
+    size_t length = getLength();
+    if (length > 0)
+    {
+    	format::indent_scope s(o);
+
+        for (size_t i = 0; i < length; i++)
+        	dumpValue(o, i);
+    }
+
+    return o;
+}
+
+std::ostream& PVUnionArray::dumpValue(std::ostream& o, std::size_t index) const
+{
+    const_svector temp(view());
+    if(index<temp.size())
+        o << *temp[index];
+    return o;
+}
+
+}}

src/factory/StandardField.cpp

@@ -10,13 +10,14 @@
 #include <string>
 #include <cstdio>
 #include <stdexcept>
-#include <epicsThread.h>
-#include <epicsExit.h>
+
+#define epicsExportSharedSymbols
 #include <pv/lock.h>
 #include <pv/pvIntrospect.h>
 #include <pv/standardField.h>
 
 using std::tr1::static_pointer_cast;
+using std::string;
 
 namespace epics { namespace pvData { 
 
@@ -49,7 +50,7 @@ void StandardField::init()
 
 StandardField::~StandardField(){}
 
-StructureConstPtr StandardField::createProperties(String id,FieldConstPtr field,String properties)
+StructureConstPtr StandardField::createProperties(string id,FieldConstPtr field,string properties)
 {
     bool gotAlarm = false;
     bool gotTimeStamp = false;
@@ -57,17 +58,18 @@ StructureConstPtr StandardField::createProperties(String id,FieldConstPtr field,
     bool gotControl = false;
     bool gotValueAlarm = false;
     int numProp = 0;
-    if(properties.find("alarm")!=String::npos) { gotAlarm = true; numProp++; }
-    if(properties.find("timeStamp")!=String::npos) { gotTimeStamp = true; numProp++; }
-    if(properties.find("display")!=String::npos) { gotDisplay = true; numProp++; }
-    if(properties.find("control")!=String::npos) { gotControl = true; numProp++; }
-    if(properties.find("valueAlarm")!=String::npos) { gotValueAlarm = true; numProp++; }
+    if(properties.find("alarm")!=string::npos) { gotAlarm = true; numProp++; }
+    if(properties.find("timeStamp")!=string::npos) { gotTimeStamp = true; numProp++; }
+    if(properties.find("display")!=string::npos) { gotDisplay = true; numProp++; }
+    if(properties.find("control")!=string::npos) { gotControl = true; numProp++; }
+    if(properties.find("valueAlarm")!=string::npos) { gotValueAlarm = true; numProp++; }
     StructureConstPtr valueAlarm;
     Type type= field->getType();
     while(gotValueAlarm) {
-        if(type==epics::pvData::scalar) {
-           ScalarConstPtr scalar = static_pointer_cast<const Scalar>(field);
-           ScalarType scalarType = scalar->getScalarType();
+        if(type==epics::pvData::scalar || type==epics::pvData::scalarArray) {
+           ScalarType scalarType = (type==epics::pvData::scalar) ?
+		static_pointer_cast<const Scalar>(field)->getScalarType() :
+		static_pointer_cast<const ScalarArray>(field)->getElementType();
            switch(scalarType) {
                case pvBoolean: valueAlarm = booleanAlarmField; break;
                case pvByte: valueAlarm = byteAlarmField; break;
@@ -81,7 +83,7 @@ StructureConstPtr StandardField::createProperties(String id,FieldConstPtr field,
                case pvFloat: valueAlarm = floatAlarmField; break;
                case pvDouble: valueAlarm = doubleAlarmField; break;
                case pvString:
-                throw std::logic_error(String("valueAlarm property not supported for pvString"));
+                throw std::logic_error(string("valueAlarm property not supported for pvString"));
            }
            break;
         }
@@ -92,8 +94,8 @@ StructureConstPtr StandardField::createProperties(String id,FieldConstPtr field,
                 FieldConstPtrArray fields = structurePtr->getFields();
                 FieldConstPtr first = fields[0];
                 FieldConstPtr second = fields[1];
-                String nameFirst = names[0];
-                String nameSecond = names[1];
+                string nameFirst = names[0];
+                string nameSecond = names[1];
                 int compareFirst = nameFirst.compare("index");
                 int compareSecond = nameSecond.compare("choices");
                 if(compareFirst==0 && compareSecond==0) {
@@ -111,7 +113,7 @@ StructureConstPtr StandardField::createProperties(String id,FieldConstPtr field,
                 }
             }
         }
-        throw std::logic_error(String("valueAlarm property for illegal type"));
+        throw std::logic_error(string("valueAlarm property for illegal type"));
     }
     size_t numFields = numProp+1;
     FieldConstPtrArray fields(numFields);
@@ -498,14 +500,28 @@ void StandardField::createEnumeratedAlarm() {
 
 
 StructureConstPtr StandardField::scalar(
-    ScalarType type,String  const &properties)
+    ScalarType type,string  const &properties)
 {
     ScalarConstPtr field = fieldCreate->createScalar(type); // scalar_t
     return createProperties("uri:ev4:nt/2012/pwd:NTScalar",field,properties);
 }
 
+StructureConstPtr StandardField::regUnion(
+    UnionConstPtr const &field,
+        string const & properties)
+{
+   return createProperties("uri:ev4:nt/2012/pwd:NTUnion",field,properties);
+}
+
+StructureConstPtr StandardField::variantUnion(
+    string const & properties)
+{
+    UnionConstPtr field =  fieldCreate->createVariantUnion();
+    return createProperties("uri:ev4:nt/2012/pwd:NTUnion",field,properties);
+}
+
 StructureConstPtr StandardField::scalarArray(
-    ScalarType elementType, String  const &properties)
+    ScalarType elementType, string  const &properties)
 {
     ScalarArrayConstPtr field = fieldCreate->createScalarArray(elementType); // scalar_t[]
     return createProperties("uri:ev4:nt/2012/pwd:NTScalarArray",field,properties);
@@ -513,11 +529,19 @@ StructureConstPtr StandardField::scalarArray(
 
 
 StructureConstPtr StandardField::structureArray(
-    StructureConstPtr const & structure,String  const &properties)
+    StructureConstPtr const & structure,string  const &properties)
 {
     StructureArrayConstPtr field = fieldCreate->createStructureArray(
         structure);
-    return createProperties("uri:ev4:nt/2012/pwd:NTAny",field,properties);
+    return createProperties("uri:ev4:nt/2012/pwd:NTStructureArray",field,properties);
+}
+
+StructureConstPtr StandardField::unionArray(
+    UnionConstPtr const & punion,string  const &properties)
+{
+    UnionArrayConstPtr field = fieldCreate->createUnionArray(
+        punion);
+    return createProperties("uri:ev4:nt/2012/pwd:NTUnionArray",field,properties);
 }
 
 StructureConstPtr StandardField::enumerated()
@@ -533,7 +557,7 @@ StructureConstPtr StandardField::enumerated()
     // NOTE: if this method is used to get NTEnum wihtout properties the ID will be wrong!
 }
 
-StructureConstPtr StandardField::enumerated(String  const &properties)
+StructureConstPtr StandardField::enumerated(string  const &properties)
 {
     StructureConstPtr field = enumerated(); // enum_t
     return createProperties("uri:ev4:nt/2012/pwd:NTEnum",field,properties);

src/factory/StandardPVField.cpp

@@ -9,8 +9,8 @@
  */
 #include <string>
 #include <stdexcept>
-#include <epicsThread.h>
-#include <epicsExit.h>
+
+#define epicsExportSharedSymbols
 #include <pv/lock.h>
 #include <pv/pvIntrospect.h>
 #include <pv/pvData.h>
@@ -18,6 +18,8 @@
 #include <pv/standardField.h>
 #include <pv/standardPVField.h>
 
+using std::string;
+
 namespace epics { namespace pvData { 
 
 StandardPVField::StandardPVField()
@@ -30,7 +32,7 @@ StandardPVField::StandardPVField()
 StandardPVField::~StandardPVField(){}
 
 PVStructurePtr StandardPVField::scalar(
-    ScalarType type,String const & properties)
+    ScalarType type,string const & properties)
 {
     StructureConstPtr field = standardField->scalar(type,properties);
     PVStructurePtr pvStructure = pvDataCreate->createPVStructure(field);
@@ -38,7 +40,7 @@ PVStructurePtr StandardPVField::scalar(
 }
 
 PVStructurePtr StandardPVField::scalarArray(
-    ScalarType elementType, String const & properties)
+    ScalarType elementType, string const & properties)
 {
     StructureConstPtr field = standardField->scalarArray(elementType,properties);
     PVStructurePtr pvStructure = pvDataCreate->createPVStructure(field);
@@ -46,39 +48,43 @@ PVStructurePtr StandardPVField::scalarArray(
 }
 
 PVStructurePtr StandardPVField::structureArray(
-    StructureConstPtr const & structure,String const & properties)
+    StructureConstPtr const & structure,string const & properties)
 {
     StructureConstPtr field = standardField->structureArray(structure,properties);
     PVStructurePtr pvStructure = pvDataCreate->createPVStructure(field);
     return pvStructure;
 }
 
+PVStructurePtr StandardPVField::unionArray(
+    UnionConstPtr const & punion,string const & properties)
+{
+    StructureConstPtr field = standardField->unionArray(punion,properties);
+    PVStructurePtr pvStructure = pvDataCreate->createPVStructure(field);
+    return pvStructure;
+}
+
 PVStructurePtr StandardPVField::enumerated(StringArray const &choices)
 {
     StructureConstPtr field = standardField->enumerated();
     PVStructurePtr pvStructure = pvDataCreate->createPVStructure(field);
     PVScalarArrayPtr pvScalarArray = pvStructure->getScalarArrayField(
         "choices",pvString);
-    if(pvScalarArray.get()==NULL) {
-        throw std::logic_error(String("StandardPVField::enumerated"));
-    }
-    PVStringArray * pvChoices = static_cast<PVStringArray *>(pvScalarArray.get());
-    pvChoices->put(0,choices.size(),get(choices),0);
+    PVStringArray::svector cdata(choices.size());
+    std::copy(choices.begin(), choices.end(), cdata.begin());
+    static_cast<PVStringArray&>(*pvScalarArray).replace(freeze(cdata));
     return pvStructure;
 }
 
 PVStructurePtr StandardPVField::enumerated(
-    StringArray const &choices,String const & properties)
+    StringArray const &choices,string const & properties)
 {
     StructureConstPtr field = standardField->enumerated(properties);
     PVStructurePtr pvStructure =  pvDataCreate->createPVStructure(field);
     PVScalarArrayPtr pvScalarArray = pvStructure->getScalarArrayField(
         "value.choices",pvString);
-    if(pvScalarArray.get()==NULL) {
-        throw std::logic_error(String("StandardPVField::enumerated"));
-    }
-    PVStringArray * pvChoices = static_cast<PVStringArray *>(pvScalarArray.get());
-    pvChoices->put(0,choices.size(),get(choices),0);
+    PVStringArray::svector cdata(choices.size());
+    std::copy(choices.begin(), choices.end(), cdata.begin());
+    static_cast<PVStringArray&>(*pvScalarArray).replace(freeze(cdata));
     return pvStructure;
 }
 

src/factory/TypeFunc.cpp

@@ -12,27 +12,33 @@
 #include <string>
 #include <cstdio>
 
+#define epicsExportSharedSymbols
 #include <pv/pvIntrospect.h>
 #include <pv/epicsException.h>
+#include <pv/sharedVector.h>
 
 #include "dbDefs.h" // for NELEMENTS
 
+using std::string;
+
 namespace epics { namespace pvData {
 
 namespace TypeFunc {
     static const char* names[] = {
-        "scalar", "scalarArray", "structure", "structureArray",
+        "scalar", "scalarArray", "structure", "structureArray", "union", "unionArray"
     };
     const char* name(Type t) {
-        if (t<int(pvBoolean) || t>int(pvString))
+        if (t<int(scalar) || t>int(unionArray))
             THROW_EXCEPTION2(std::invalid_argument, "logic error unknown Type");
         return names[t];
     }
-    void toString(StringBuilder buf,const Type type) {
-        *buf += name(type);
-    }
 } // namespace TypeFunc
 
+std::ostream& operator<<(std::ostream& o, const Type& type)
+{
+    return o << TypeFunc::name(type);
+}
+
 
 namespace ScalarTypeFunc {
     bool isInteger(ScalarType type) {
@@ -61,7 +67,7 @@ namespace ScalarTypeFunc {
         "ubyte", "ushort", "uint", "ulong",
         "float", "double", "string",
     };
-    ScalarType getScalarType(String pvalue) {
+    ScalarType getScalarType(const string& pvalue) {
         for(size_t i=0; i<NELEMENTS(names); i++)
             if(pvalue==names[i])
                 return ScalarType(i);
@@ -74,10 +80,55 @@ namespace ScalarTypeFunc {
         return names[t];
     }
 
-    void toString(StringBuilder buf,const ScalarType scalarType) {
-        *buf += name(scalarType);
+    size_t elementSize(ScalarType id)
+    {
+        switch(id) {
+#define OP(ENUM, TYPE) case ENUM: return sizeof(TYPE)
+            OP(pvBoolean, boolean);
+            OP(pvUByte, uint8);
+            OP(pvByte, int8);
+            OP(pvUShort, uint16);
+            OP(pvShort, int16);
+            OP(pvUInt, uint32);
+            OP(pvInt, int32);
+            OP(pvULong, uint64);
+            OP(pvLong, int64);
+            OP(pvFloat, float);
+            OP(pvDouble, double);
+            OP(pvString, string);
+#undef OP
+        default:
+            THROW_EXCEPTION2(std::invalid_argument, "error unknown ScalarType");
+        }
+    }
+
+    shared_vector<void> allocArray(ScalarType id, size_t len)
+    {
+        switch(id) {
+#define OP(ENUM, TYPE) case ENUM: return static_shared_vector_cast<void>(shared_vector<TYPE>(len))
+        OP(pvBoolean, boolean);
+        OP(pvUByte, uint8);
+        OP(pvByte, int8);
+        OP(pvUShort, uint16);
+        OP(pvShort, int16);
+        OP(pvUInt, uint32);
+        OP(pvInt, int32);
+        OP(pvULong, uint64);
+        OP(pvLong, int64);
+        OP(pvFloat, float);
+        OP(pvDouble, double);
+        OP(pvString, string);
+#undef OP
+        default:
+            throw std::bad_alloc();
+        }
     }
 
 } // namespace ScalarTypeFunc
 
+std::ostream& operator<<(std::ostream& o, const ScalarType& scalarType)
+{
+    return o << ScalarTypeFunc::name(scalarType);
+}
+
 }}

src/factory/printer.cpp

@@ -0,0 +1,290 @@
+/* printer.cpp */
+/**
+ * Copyright - See the COPYRIGHT that is included with this distribution.
+ * EPICS pvData is distributed subject to a Software License Agreement found
+ * in file LICENSE that is included with this distribution.
+ */
+ 
+#include <deque>
+
+#define epicsExportSharedSymbols
+#include <pv/printer.h>
+
+using std::string;
+
+namespace {
+
+void indentN(std::ostream& strm, size_t N)
+{
+    while(N--)
+        strm.put(' ');
+}
+
+}
+
+namespace epics { namespace pvData {
+
+namespace format
+{
+	std::ostream& operator<<(std::ostream& os, indent_level const& indent)
+	{
+		indent_value(os) = indent.level;
+		return os;
+	}
+
+	std::ostream& operator<<(std::ostream& os, indent const&)
+	{
+		long il = indent_value(os);
+		std::size_t spaces = static_cast<std::size_t>(il) * 4;
+		return os << string(spaces, ' ');
+	}
+
+	array_at_internal operator<<(std::ostream& str, array_at const& manip)
+	{
+		return array_at_internal(manip.index, str);
+	}
+};
+
+PrinterBase::PrinterBase()
+    :strm(NULL)
+{}
+
+PrinterBase::~PrinterBase() {}
+
+void PrinterBase::setStream(std::ostream& s)
+{
+    strm = &s;
+}
+
+void PrinterBase::clearStream()
+{
+    strm = NULL;
+}
+
+void PrinterBase::print(const PVField& pv)
+{
+    if(!strm)
+        throw std::runtime_error("No stream set for PV Printer");
+    impl_print(pv);
+}
+
+void PrinterBase::beginStructure(const PVStructure&) {}
+void PrinterBase::endStructure(const PVStructure&) {}
+
+void PrinterBase::beginStructureArray(const PVStructureArray&) {}
+void PrinterBase::endStructureArray(const PVStructureArray&) {}
+
+void PrinterBase::beginUnion(const PVUnion&) {}
+void PrinterBase::endUnion(const PVUnion&) {}
+
+void PrinterBase::beginUnionArray(const PVUnionArray&) {}
+void PrinterBase::endUnionArray(const PVUnionArray&) {}
+
+void PrinterBase::encodeScalar(const PVScalar&) {}
+
+void PrinterBase::encodeArray(const PVScalarArray&) {}
+
+void PrinterBase::encodeNull() {}
+
+void PrinterBase::impl_print(const PVField& pv)
+{
+    static const PVField* marker = (const PVField*)&marker;
+
+    /* Depth first recursive iteration.
+     * Each PV to be printed is appended to the todo queue.
+     * The last child of a structure is followed by a NULL.
+     * As the tree is walked structures and structarrays
+     * are appended to the inprog queue.
+     */
+    std::deque<const PVField*> todo, inprog;
+
+    todo.push_back(&pv);
+
+    while(!todo.empty()) {
+        const PVField *next = todo.front();
+        todo.pop_front();
+
+        if(next==marker) {
+            // finished with a structure or structarray,
+            // now we fall back to its parent.
+            assert(!inprog.empty());
+            switch(inprog.back()->getField()->getType()) {
+            case structure:
+                endStructure(*static_cast<const PVStructure *>(inprog.back()));
+                break;
+
+            case structureArray:
+                endStructureArray(*static_cast<const PVStructureArray *>(inprog.back()));
+                break;
+
+            case union_:
+                endUnion(*static_cast<const PVUnion *>(inprog.back()));
+                break;
+
+            case unionArray:
+                endUnionArray(*static_cast<const PVUnionArray *>(inprog.back()));
+                break;
+
+            default:
+                assert(false); // oops!
+                return;
+            }
+            inprog.pop_back();
+
+        } else {
+            // real field
+
+            if(!next) {
+                // NULL entry in a structure array
+                encodeNull();
+                continue;
+            }
+
+            switch(next->getField()->getType()) {
+            case scalar:
+                encodeScalar(*static_cast<const PVScalar*>(next));
+                break;
+            case scalarArray:
+                encodeArray(*static_cast<const PVScalarArray*>(next));
+                break;
+            case structure: {
+                    const PVStructure &fld = *static_cast<const PVStructure*>(next);
+                    const PVFieldPtrArray& vals = fld.getPVFields();
+
+                    inprog.push_back(next);
+
+                    beginStructure(fld);
+                    for(size_t i=0, nfld=fld.getStructure()->getNumberFields(); i<nfld; i++)
+                        todo.push_back(vals[i].get());
+
+                    todo.push_back(marker);
+                    break;
+                }
+            case structureArray: {
+                    const PVStructureArray &fld = *static_cast<const PVStructureArray*>(next);
+                    PVStructureArray::const_svector vals(fld.view());
+
+                    inprog.push_back(next);
+
+                    beginStructureArray(fld);
+                    for(PVStructureArray::const_svector::const_iterator it=vals.begin();
+                        it!=vals.end(); ++it)
+                    {
+                        todo.push_back(it->get());
+                    }
+
+                    todo.push_back(marker);
+                    break;
+                }
+            case union_: {
+                    const PVUnion &fld = *static_cast<const PVUnion*>(next);
+
+                    inprog.push_back(next);
+
+                    beginUnion(fld);
+                    PVFieldPtr val = fld.get();
+                    if (val.get())          // TODO print "(none)" ?
+                        todo.push_back(val.get());
+
+                    todo.push_back(marker);
+                    break;
+                }
+            case unionArray: {
+                    const PVUnionArray &fld = *static_cast<const PVUnionArray*>(next);
+                    PVUnionArray::const_svector vals(fld.view());
+
+                    inprog.push_back(next);
+
+                    beginUnionArray(fld);
+                    for(PVUnionArray::const_svector::const_iterator it=vals.begin();
+                        it!=vals.end(); ++it)
+                    {
+                        todo.push_back(it->get());
+                    }
+
+                    todo.push_back(marker);
+                    break;
+                }
+            }
+        }
+    }
+}
+
+
+PrinterPlain::PrinterPlain()
+    :PrinterBase()
+    ,ilvl(0)
+{}
+
+PrinterPlain::~PrinterPlain() {}
+
+void PrinterPlain::beginStructure(const PVStructure& pv)
+{
+    indentN(S(), ilvl);
+    S() << pv.getStructure()->getID() << " " << pv.getFieldName();
+    S() << std::endl;
+    ilvl++;
+}
+
+void PrinterPlain::endStructure(const PVStructure&) {ilvl--;}
+
+void PrinterPlain::beginStructureArray(const PVStructureArray& pv)
+{
+    indentN(S(), ilvl);
+    S() << pv.getStructureArray()->getID() << " "
+        << pv.getFieldName() << "[] ";
+    ilvl++;
+}
+
+void PrinterPlain::endStructureArray(const PVStructureArray&) {ilvl--;}
+
+void PrinterPlain::beginUnion(const PVUnion& pv)
+{
+    indentN(S(), ilvl);
+    S() << pv.getUnion()->getID() << " " << pv.getFieldName() << std::endl;
+    ilvl++;
+}
+
+void PrinterPlain::endUnion(const PVUnion&) {ilvl--;}
+
+void PrinterPlain::beginUnionArray(const PVUnionArray& pv)
+{
+    indentN(S(), ilvl);
+    S() << pv.getUnionArray()->getID() << " "
+        << pv.getFieldName() << "[] ";
+    ilvl++;
+}
+
+void PrinterPlain::endUnionArray(const PVUnionArray&) {ilvl--;}
+
+void PrinterPlain::encodeScalar(const PVScalar& pv)
+{
+    indentN(S(), ilvl);
+    S() << pv.getScalar()->getID() << " "
+        << pv.getFieldName() << " "
+        << pv.getAs<string>() << std::endl;
+}
+
+void PrinterPlain::encodeArray(const PVScalarArray& pv)
+{
+    indentN(S(), ilvl);
+    shared_vector<const string> temp;
+    pv.getAs<string>(temp);
+
+    S() << pv.getScalarArray()->getID() << " "
+        << pv.getFieldName() << " [";
+    for(size_t i=0, len=pv.getLength(); i<len; i++) {
+        S() << temp[i];
+        if(i!=len-1)
+            S().put(',');
+    }
+    S() << "]" << std::endl;
+}
+
+void PrinterPlain::encodeNull()
+{
+    indentN(S(), ilvl);
+    S() << "NULL" << std::endl;
+}
+
+}}

src/factory/pvSubArrayCopy.cpp

@@ -0,0 +1,276 @@
+/**
+ * Copyright - See the COPYRIGHT that is included with this distribution.
+ * EPICS pvData is distributed subject to a Software License Agreement found
+ * in file LICENSE that is included with this distribution.
+ */
+/**
+ * @author Marty Kraimer
+ * @date 2013.07
+ */
+#include <string>
+#include <stdexcept>
+#include <memory>
+
+#define epicsExportSharedSymbols
+#include <pv/pvSubArrayCopy.h>
+
+using std::cout;
+using std::endl;
+using std::string;
+
+namespace epics { namespace pvData { 
+
+template<typename T>
+void copy(
+    PVValueArray<T> & pvFrom,
+    size_t fromOffset,
+    size_t fromStride,
+    PVValueArray<T> & pvTo,
+    size_t toOffset,
+    size_t toStride,
+    size_t count)
+{
+    if(pvTo.isImmutable()) throw std::invalid_argument("pvSubArrayCopy: pvTo is immutable");
+    if(fromStride<1 || toStride<1) throw std::invalid_argument("stride must be >=1");
+    size_t fromLength = pvFrom.getLength();
+    size_t maxcount = (fromLength -fromOffset + fromStride -1)/fromStride;
+    if(count>maxcount) throw std::invalid_argument("pvSubArrayCopy pvFrom length error");
+    size_t newLength = toOffset + count*toStride;
+    size_t capacity = pvTo.getCapacity();
+    if(newLength>capacity) capacity = newLength;
+    shared_vector<T> temp(capacity);
+    typename PVValueArray<T>::const_svector vecFrom = pvFrom.view();
+    typename PVValueArray<T>::const_svector vecTo = pvTo.view();
+    for(size_t i=0; i<pvTo.getLength(); ++i) temp[i] = vecTo[i];
+    for(size_t i=pvTo.getLength(); i< capacity; ++i) temp[i] = T();
+    for(size_t i=0; i<count; ++i) temp[i*toStride + toOffset] = vecFrom[i*fromStride+fromOffset];
+    shared_vector<const T> temp2(freeze(temp));
+    pvTo.replace(temp2);
+}
+
+void copy(
+    PVScalarArray & from,
+    size_t fromOffset,
+    size_t fromStride,
+    PVScalarArray & to,
+    size_t toOffset,
+    size_t toStride,
+    size_t count)
+{
+    ScalarType scalarType = from.getScalarArray()->getElementType();
+    ScalarType otherType = to.getScalarArray()->getElementType();
+    if(scalarType!=otherType) {
+        throw std::invalid_argument("pvSubArrayCopy element types do not match");
+    }
+    switch(scalarType)
+    {
+    case pvBoolean:
+       {
+           copy(dynamic_cast<PVValueArray<boolean> &>(from),fromOffset,fromStride,
+           dynamic_cast<PVValueArray<boolean>& >(to),
+           toOffset,toStride,count);
+       }
+       break;
+    case pvByte:
+       {
+           copy(dynamic_cast<PVValueArray<int8> &>(from),fromOffset,fromStride,
+           dynamic_cast<PVValueArray<int8>& >(to),
+           toOffset,toStride,count);
+       }
+       break;
+    case pvShort:
+       {
+           copy(dynamic_cast<PVValueArray<int16> &>(from),fromOffset,fromStride,
+           dynamic_cast<PVValueArray<int16>& >(to),
+           toOffset,toStride,count);
+       }
+       break;
+    case pvInt:
+       {
+           copy(dynamic_cast<PVValueArray<int32> &>(from),fromOffset,fromStride,
+           dynamic_cast<PVValueArray<int32>& >(to),
+           toOffset,toStride,count);
+       }
+       break;
+    case pvLong:
+       {
+           copy(dynamic_cast<PVValueArray<int64> &>(from),fromOffset,fromStride,
+           dynamic_cast<PVValueArray<int64>& >(to),
+           toOffset,toStride,count);
+       }
+       break;
+    case pvUByte:
+       {
+           copy(dynamic_cast<PVValueArray<uint8> &>(from),fromOffset,fromStride,
+           dynamic_cast<PVValueArray<uint8>& >(to),
+           toOffset,toStride,count);
+       }
+       break;
+    case pvUShort:
+       {
+           copy(dynamic_cast<PVValueArray<uint16> &>(from),fromOffset,fromStride,
+           dynamic_cast<PVValueArray<uint16>& >(to),
+           toOffset,toStride,count);
+       }
+       break;
+    case pvUInt:
+       {
+           copy(dynamic_cast<PVValueArray<uint32> &>(from),fromOffset,fromStride,
+           dynamic_cast<PVValueArray<uint32>& >(to),
+           toOffset,toStride,count);
+       }
+       break;
+    case pvULong:
+       {
+           copy(dynamic_cast<PVValueArray<uint64> &>(from),fromOffset,fromStride,
+           dynamic_cast<PVValueArray<uint64>& >(to),
+           toOffset,toStride,count);
+       }
+       break;
+    case pvFloat:
+       {
+           copy(dynamic_cast<PVValueArray<float> &>(from),fromOffset,fromStride,
+           dynamic_cast<PVValueArray<float>& >(to),
+           toOffset,toStride,count);
+       }
+       break;
+    case pvDouble:
+       {
+           copy(dynamic_cast<PVValueArray<double> &>(from),fromOffset,fromStride,
+           dynamic_cast<PVValueArray<double>& >(to),
+           toOffset,toStride,count);
+       }
+       break;
+    case pvString:
+       {
+           copy(dynamic_cast<PVValueArray<string> &>(from),fromOffset,fromStride,
+           dynamic_cast<PVValueArray<string>& >(to),
+           toOffset,toStride,count);
+       }
+       break;
+    }
+}
+
+void copy(
+    PVStructureArray & pvFrom,
+    size_t pvFromOffset,
+    size_t pvFromStride,
+    PVStructureArray & pvTo,
+    size_t toOffset,
+    size_t toStride,
+    size_t count)
+{
+    if(pvTo.isImmutable()) {
+        throw std::logic_error("pvSubArrayCopy  pvTo is immutable");
+    }
+    if(pvFromStride<1 || toStride<1) throw std::invalid_argument("stride must be >=1");
+    StructureArrayConstPtr pvFromStructure = pvFrom.getStructureArray();
+    StructureArrayConstPtr toStructure = pvTo.getStructureArray();
+    if(pvFromStructure->getStructure()!=toStructure->getStructure()) {
+        throw std::invalid_argument(
+            "pvSubArrayCopy structureArray pvTo and pvFrom have different structures");
+    }
+    size_t pvFromLength = pvFrom.getLength();
+    size_t maxcount = (pvFromLength -pvFromOffset + pvFromStride -1)/pvFromStride;
+    if(count>maxcount) throw std::invalid_argument("pvSubArrayCopy pvFrom length error");
+    size_t newLength = toOffset + count*toStride;
+    size_t capacity = pvTo.getCapacity();
+    if(newLength>capacity) capacity = newLength;
+    shared_vector<PVStructurePtr> temp(capacity);
+    PVValueArray<PVStructurePtr>::const_svector vecFrom = pvFrom.view();
+    PVValueArray<PVStructurePtr>::const_svector vecTo = pvTo.view();
+    for(size_t i=0; i<pvTo.getLength(); ++i) temp[i] = vecTo[i];
+    for(size_t i=pvTo.getLength(); i< capacity; ++i)
+        temp[i] = getPVDataCreate()->createPVStructure(toStructure->getStructure());
+    for(size_t i=0; i<count; ++i) temp[i*toStride + toOffset] = vecFrom[i*pvFromStride+pvFromOffset];
+    shared_vector<const PVStructurePtr> temp2(freeze(temp));
+    pvTo.replace(temp2);
+}
+
+void copy(
+    PVUnionArray & pvFrom,
+    size_t pvFromOffset,
+    size_t pvFromStride,
+    PVUnionArray & pvTo,
+    size_t toOffset,
+    size_t toStride,
+    size_t count)
+{
+    if(pvTo.isImmutable()) {
+        throw std::logic_error("pvSubArrayCopy  pvTo is immutable");
+    }
+    if(pvFromStride<1 || toStride<1) throw std::invalid_argument("stride must be >=1");
+    UnionArrayConstPtr pvFromUnion = pvFrom.getUnionArray();
+    UnionArrayConstPtr toUnion = pvTo.getUnionArray();
+    if(pvFromUnion->getUnion()!=toUnion->getUnion()) {
+        throw std::invalid_argument(
+            "pvSubArrayCopy unionArray pvTo and pvFrom have different unions");
+    }
+    size_t pvFromLength = pvFrom.getLength();
+    size_t maxcount = (pvFromLength -pvFromOffset + pvFromStride -1)/pvFromStride;
+    if(count>maxcount) throw std::invalid_argument("pvSubArrayCopy pvFrom length error");
+    size_t newLength = toOffset + count*toStride;
+    size_t capacity = pvTo.getCapacity();
+    if(newLength>capacity) capacity = newLength;
+    shared_vector<PVUnionPtr> temp(capacity);
+    PVValueArray<PVUnionPtr>::const_svector vecFrom = pvFrom.view();
+    PVValueArray<PVUnionPtr>::const_svector vecTo = pvTo.view();
+    for(size_t i=0; i<pvTo.getLength(); ++i) temp[i] = vecTo[i];
+    for(size_t i=pvTo.getLength(); i< capacity; ++i)
+        temp[i] = getPVDataCreate()->createPVUnion(toUnion->getUnion());
+    for(size_t i=0; i<count; ++i) temp[i*toStride + toOffset] = vecFrom[i*pvFromStride+pvFromOffset];
+    shared_vector<const PVUnionPtr> temp2(freeze(temp));
+    pvTo.replace(temp2);
+}
+
+void copy(
+    PVArray & pvFrom,
+    size_t pvFromOffset,
+    size_t pvFromStride,
+    PVArray & pvTo,
+    size_t pvToOffset,
+    size_t pvToStride,
+    size_t count)
+{
+    Type pvFromType = pvFrom.getField()->getType();
+    Type pvToType = pvTo.getField()->getType();
+    if(pvFromType!=pvToType) throw std::invalid_argument("pvSubArrayCopy: pvFrom and pvTo different types");
+    if(pvFromType==scalarArray) {
+        ScalarType pvFromScalarType= static_cast<ScalarType>(pvFromType);
+        ScalarType pvToScalarType = static_cast<ScalarType>(pvToType);
+        if(pvFromScalarType!=pvToScalarType){
+              throw std::invalid_argument("pvSubArrayCopy: pvFrom and pvTo different types");
+        }
+    }
+    if(pvTo.isImmutable()) throw std::invalid_argument("pvSubArrayCopy: pvTo is immutable");
+    if(pvFromType==scalarArray) {
+           copy(dynamic_cast<PVScalarArray &>(pvFrom) ,pvFromOffset,pvFromStride,
+           dynamic_cast<PVScalarArray&>(pvTo),
+           pvToOffset,pvToStride,count);
+    }
+    if(pvFromType==structureArray) {
+           copy(dynamic_cast<PVStructureArray &>(pvFrom) ,pvFromOffset,pvFromStride,
+           dynamic_cast<PVStructureArray&>(pvTo),
+           pvToOffset,pvToStride,count);
+    }
+    if(pvFromType==unionArray) {
+           copy(dynamic_cast<PVUnionArray &>(pvFrom) ,pvFromOffset,pvFromStride,
+           dynamic_cast<PVUnionArray&>(pvTo),
+           pvToOffset,pvToStride,count);
+    }
+}
+
+void copy(
+    PVArray::shared_pointer const & pvFrom,
+    size_t pvFromOffset,
+    size_t pvFromStride,
+    PVArray::shared_pointer & pvTo,
+    size_t pvToOffset,
+    size_t pvToStride,
+    size_t count)
+{
+    copy(*pvFrom,pvFromOffset,pvFromStride,*pvTo,pvToOffset,pvToStride,count);
+}
+
+}}
+

src/misc/Makefile

@@ -0,0 +1,44 @@
+# This is a Makefile fragment, see ../Makefile
+
+SRC_DIRS += $(PVDATA_SRC)/misc
+
+INC += noDefaultMethods.h
+INC += lock.h
+INC += requester.h
+INC += serialize.h
+INC += bitSet.h
+INC += byteBuffer.h
+INC += epicsException.h
+INC += serializeHelper.h
+INC += event.h
+INC += thread.h
+INC += executor.h
+INC += timeFunction.h
+INC += timer.h
+INC += queue.h
+INC += messageQueue.h
+INC += destroyable.h
+INC += status.h
+INC += sharedPtr.h
+INC += localStaticLock.h
+INC += typeCast.h
+INC += printer.h
+INC += sharedVector.h
+INC += templateMeta.h
+INC += current_function.h
+
+LIBSRCS += byteBuffer.cpp
+LIBSRCS += bitSet.cpp
+LIBSRCS += epicsException.cpp
+LIBSRCS += requester.cpp
+LIBSRCS += serializeHelper.cpp
+LIBSRCS += event.cpp
+LIBSRCS += executor.cpp
+LIBSRCS += timeFunction.cpp
+LIBSRCS += timer.cpp
+LIBSRCS += status.cpp
+LIBSRCS += messageQueue.cpp
+LIBSRCS += localStaticLock.cpp
+LIBSRCS += typeCast.cpp
+LIBSRCS += parseToPOD.cpp
+

src/misc/bitSet.cpp

@@ -7,11 +7,14 @@
 /**
  *  @author mes
  */
-#include "string.h"
-#include "stdio.h"
-#include <pv/bitSet.h>
+#include <string.h>
+#include <stdio.h>
+#include <iostream>
+
+#define epicsExportSharedSymbols
 #include <pv/lock.h>
 #include <pv/serializeHelper.h>
+#include <pv/bitSet.h>
 
 namespace epics { namespace pvData {
  
@@ -199,6 +202,8 @@ namespace epics { namespace pvData {
     }
 
     BitSet& BitSet::operator&=(const BitSet& set) {
+        // Check for self-assignment!
+        if (this == &set) return *this;
 
         while (wordsInUse > set.wordsInUse)
             words[--wordsInUse] = 0;
@@ -213,76 +218,49 @@ namespace epics { namespace pvData {
     }
 
     BitSet& BitSet::operator|=(const BitSet& set) {
-
-        uint32 wordsInCommon;
+        // Check for self-assignment!
+        if (this == &set) return *this;
+        uint32 wordsInCommon = wordsInUse;
+        if(wordsInUse>set.wordsInUse) wordsInCommon = set.wordsInUse;
         if (wordsInUse < set.wordsInUse) {
-            wordsInCommon = wordsInUse;
-            //ensureCapacity(set.wordsInUse);
-            //wordsInUse = set.wordsInUse;
+            ensureCapacity(set.wordsInUse);
+            wordsInUse = set.wordsInUse;
         }
-        else
-            wordsInCommon = set.wordsInUse;
-
         // Perform logical OR on words in common
-        uint32 i = 0;
-        for (; i < wordsInCommon; i++)
+        for (uint32 i =0; i < wordsInCommon; i++) {
             words[i] |= set.words[i];
-
-        // TODO what to do if BitSets are not the same size !!!
-
+         }
+        // Copy any remaining words
+        for(uint32 i=wordsInCommon; i<set.wordsInUse; ++i) {
+            words[i] = set.words[i];
+        }
         // recalculateWordsInUse() is not needed
-
         return *this;
     }
 
     BitSet& BitSet::operator^=(const BitSet& set) {
-
-        uint32 wordsInCommon;
+        uint32 wordsInCommon = wordsInUse;
+        if(wordsInUse>set.wordsInUse) wordsInCommon = set.wordsInUse;
         if (wordsInUse < set.wordsInUse) {
-            wordsInCommon = wordsInUse;
-            //ensureCapacity(set.wordsInUse);
-            //wordsInUse = set.wordsInUse;
+            ensureCapacity(set.wordsInUse);
+            wordsInUse = set.wordsInUse;
         }
-        else
-            wordsInCommon = set.wordsInUse;
-
-        // Perform logical XOR on words in common
-        uint32 i = 0;
-        for (; i < wordsInCommon; i++)
+        // Perform logical OR on words in common
+        for (uint32 i =0; i < wordsInCommon; i++) {
             words[i] ^= set.words[i];
-
-        // TODO what to do if BitSets are not the same size !!!
-
-        recalculateWordsInUse();
-
-        return *this;
-    }
-
-    BitSet& BitSet::operator-=(const BitSet& set) {
-
-        uint32 wordsInCommon;
-        if (wordsInUse < set.wordsInUse) {
-            wordsInCommon = wordsInUse;
-            //ensureCapacity(set.wordsInUse);
-            //wordsInUse = set.wordsInUse;
+         }
+        // Copy any remaining words
+        for(uint32 i=wordsInCommon; i<set.wordsInUse; ++i) {
+            words[i] = set.words[i];
         }
-        else
-            wordsInCommon = set.wordsInUse;
-
-        // Perform logical (a & !b) on words in common
-        uint32 i = 0;
-        for (; i < wordsInCommon; i++)
-            words[i] &= ~set.words[i];
-
         recalculateWordsInUse();
-
         return *this;
     }
 
+
     BitSet& BitSet::operator=(const BitSet &set) {
         // Check for self-assignment!
-        if (this == &set)
-            return *this;
+        if (this == &set) return *this;
 
         // we ensure that words array size is adequate (and not wordsInUse to ensure capacity to the future)
         if (wordsLength < set.wordsLength)
@@ -331,21 +309,6 @@ namespace epics { namespace pvData {
         return !(*this == set);
     }
 
-    void BitSet::toString(StringBuilder buffer, int indentLevel) const
-    {
-        *buffer += '{';
-        int32 i = nextSetBit(0);
-        char tmp[30];
-        if (i != -1) {
-            sprintf(tmp,"%d",(int)i); *buffer += tmp;
-            for (i = nextSetBit(i+1); i >= 0; i = nextSetBit(i+1)) {
-                int32 endOfRun = nextClearBit(i);
-                do { *buffer += ", "; sprintf(tmp,"%d",(int)i); *buffer += tmp; } while (++i < endOfRun);
-            }
-        }
-        *buffer += '}';
-    }
-
     void BitSet::serialize(ByteBuffer* buffer, SerializableControl* flusher) const {
     
         uint32 n = wordsInUse;
@@ -369,7 +332,7 @@ namespace epics { namespace pvData {
     
     void BitSet::deserialize(ByteBuffer* buffer, DeserializableControl* control) {
     
-        uint32 bytes = SerializeHelper::readSize(buffer, control);	// in bytes
+        uint32 bytes = static_cast<uint32>(SerializeHelper::readSize(buffer, control));	// in bytes
     
         wordsInUse = (bytes + 7) / 8;
         if (wordsInUse > wordsLength)
@@ -396,5 +359,20 @@ namespace epics { namespace pvData {
             words[i] |= (buffer->getByte() & 0xffL) << (8 * j);
     
     }
+    
+    epicsShareExtern std::ostream& operator<<(std::ostream& o, const BitSet& b)
+    {
+        o << '{';
+        int32 i = b.nextSetBit(0);
+        if (i != -1) {
+            o << i;
+            for (i = b.nextSetBit(i+1); i >= 0; i = b.nextSetBit(i+1)) {
+                int32 endOfRun = b.nextClearBit(i);
+                do { o << ", " << i; } while (++i < endOfRun);
+            }
+        }
+        o << '}';
+        return o;
+    }
 
 }};

src/misc/bitSet.h

@@ -9,11 +9,15 @@
  */
 #ifndef BITSET_H
 #define BITSET_H
+
 #include <stdexcept>
+
 #include <pv/pvType.h>
 #include <pv/serialize.h>
 #include <pv/sharedPtr.h>
 
+#include <shareLib.h>
+
 namespace epics { namespace pvData { 
 
     class BitSet;
@@ -42,10 +46,10 @@ namespace epics { namespace pvData {
      *
      * Based on Java implementation.
      */
-    class BitSet : public Serializable {
+    class epicsShareClass BitSet : public Serializable {
     public:
         POINTER_DEFINITIONS(BitSet);
-        static BitSet::shared_pointer create(uint32 nbits);
+        static BitSetPtr create(uint32 nbits);
         /**
          * Creates a new bit set. All bits are initially {@code false}.
          */
@@ -201,15 +205,6 @@ namespace epics { namespace pvData {
          */
         BitSet& operator^=(const BitSet& set);
 
-        /**
-         * Clears all of the bits in this {@code BitSet} whose corresponding
-         * bit is set in the specified {@code BitSet}.
-         *
-         * @param  set the {@code BitSet} with which to mask this
-         *         {@code BitSet}
-         */
-        BitSet& operator-=(const BitSet& set);
-
         /**
           * Assigment operator.
           */
@@ -230,8 +225,6 @@ namespace epics { namespace pvData {
 
         bool operator!=(const BitSet &set) const;
 
-        void toString(StringBuilder buffer, int indentLevel = 0) const;
-
         virtual void serialize(ByteBuffer *buffer,
             SerializableControl *flusher) const;
         virtual void deserialize(ByteBuffer *buffer,
@@ -322,6 +315,8 @@ namespace epics { namespace pvData {
          static uint32 bitCount(uint64 i);
 
     };
+    
+    epicsShareExtern std::ostream& operator<<(std::ostream& o, const BitSet& b);
 
 }}
 #endif  /* BITSET_H */

src/misc/byteBuffer.cpp

@@ -4,5 +4,5 @@
  * in file LICENSE that is included with this distribution.
  */
 /**
- *  @author mes
+ *  @author mse
  */

src/misc/byteBuffer.h

@@ -11,12 +11,25 @@
 #define BYTEBUFFER_H
 
 #include <string>
-#include <pv/pvType.h>
-#include <epicsEndian.h>
 #include <string.h>
 
+#ifdef epicsExportSharedSymbols
+#define byteBufferepicsExportSharedSymbols
+#undef epicsExportSharedSymbols
+#endif
+
+#include <epicsEndian.h>
+
+#ifdef byteBufferepicsExportSharedSymbols
+#define epicsExportSharedSymbols
+#undef byteBufferepicsExportSharedSymbols
+#endif
+
+#include <pv/pvType.h>
 #include <pv/epicsException.h>
 
+#include <shareLib.h>
+
 namespace epics { 
     namespace pvData {
         
@@ -189,22 +202,40 @@ public:
      *
      * @param  size      The number of bytes.
      * @param  byteOrder The byte order.
-     * Must be one of EPICS_BYTE_ORDER,EPICS_ENDIAN_LITTLE,EPICS_ENDIAN_BIG,
+     * Must be one of EPICS_BYTE_ORDER,EPICS_ENDIAN_LITTLE,EPICS_ENDIAN_BIG.
      */
     ByteBuffer(std::size_t size, int byteOrder = EPICS_BYTE_ORDER) :
         _buffer(0), _size(size),
         _reverseEndianess(byteOrder != EPICS_BYTE_ORDER),
-        _reverseFloatEndianess(byteOrder != EPICS_FLOAT_WORD_ORDER)
+        _reverseFloatEndianess(byteOrder != EPICS_FLOAT_WORD_ORDER),
+        _wrapped(false)
     {
         _buffer = (char*)malloc(size);
         clear();
     }
+
+    /**
+     * Constructor for wrapping existing buffers.
+     * Given buffer will not be released by the ByteBuffer instance.
+     * @param  buffer    Existing buffer.
+     * @param  size      The number of bytes.
+     * @param  byteOrder The byte order.
+     * Must be one of EPICS_BYTE_ORDER,EPICS_ENDIAN_LITTLE,EPICS_ENDIAN_BIG.
+     */
+    ByteBuffer(char* buffer, std::size_t size, int byteOrder = EPICS_BYTE_ORDER) :
+        _buffer(buffer), _size(size),
+        _reverseEndianess(byteOrder != EPICS_BYTE_ORDER),
+        _reverseFloatEndianess(byteOrder != EPICS_FLOAT_WORD_ORDER),
+        _wrapped(true)
+    {
+        clear();
+    }
     /**
      * Destructor
      */
     ~ByteBuffer()
     {
-        if (_buffer) free(_buffer);
+        if (_buffer && !_wrapped) free(_buffer);
     }
     /**
      * Set the byte order.
@@ -379,7 +410,7 @@ public:
      * @param  count  The number of elements.
      */
     template<typename T>
-    inline void putArray(T* values, std::size_t count);
+    inline void putArray(const T* values, std::size_t count);
     /**
      * Get an array of type {@code T} from the byte buffer.
      * The position is adjusted.
@@ -605,9 +636,28 @@ private:
     char* _limit;
     std::size_t  _size;
     bool _reverseEndianess; 
-    bool _reverseFloatEndianess; 
+    bool _reverseFloatEndianess;
+    bool _wrapped;
 };
 
+    template<>
+    inline bool ByteBuffer::reverse<bool>()
+    {
+        return false;
+    }
+
+    template<>
+    inline bool ByteBuffer::reverse<int8>()
+    {
+        return false;
+    }
+
+    template<>
+    inline bool ByteBuffer::reverse<uint8>()
+    {
+        return false;
+    }
+
     template<>
     inline bool ByteBuffer::reverse<float>()
     {
@@ -824,7 +874,7 @@ private:
     }
 
     template<typename T>
-    inline void ByteBuffer::putArray(T* values, std::size_t count)
+    inline void ByteBuffer::putArray(const T* values, std::size_t count)
     {
         // this avoids int8 specialization, compiler will take care if optimization, -O2 or more
         if (sizeof(T) == 1)

src/misc/current_function.h

@@ -0,0 +1,42 @@
+#ifndef CURRENT_FUNCTION_HPP_INCLUDED
+#define CURRENT_FUNCTION_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+
+#if defined(__GNUC__) || (defined(__MWERKS__) && (__MWERKS__ >= 0x3000)) || (defined(__ICC) && (__ICC >= 600)) || defined(__ghs__)
+
+# define CURRENT_FUNCTION __PRETTY_FUNCTION__
+
+#elif defined(__DMC__) && (__DMC__ >= 0x810)
+
+# define CURRENT_FUNCTION __PRETTY_FUNCTION__
+
+#elif defined(__FUNCSIG__)
+
+# define CURRENT_FUNCTION __FUNCSIG__
+
+#elif (defined(__INTEL_COMPILER) && (__INTEL_COMPILER >= 600)) || (defined(__IBMCPP__) && (__IBMCPP__ >= 500))
+
+# define CURRENT_FUNCTION __FUNCTION__
+
+#elif defined(__BORLANDC__) && (__BORLANDC__ >= 0x550)
+
+# define CURRENT_FUNCTION __FUNC__
+
+#elif defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901)
+
+# define CURRENT_FUNCTION __func__
+
+#else
+
+# define CURRENT_FUNCTION "(unknown)"
+
+#endif
+
+#endif // #ifndef BOOST_CURRENT_FUNCTION_HPP_INCLUDED
+

src/misc/destroyable.h

@@ -12,6 +12,8 @@
 
 #include <pv/sharedPtr.h>
 
+#include <shareLib.h>
+
 namespace epics { namespace pvData { 
 
 
@@ -19,7 +21,7 @@ namespace epics { namespace pvData {
          * Instance declaring destroy method.
          * @author mse
          */
-        class Destroyable  {
+        class epicsShareClass Destroyable {
             public:
             POINTER_DEFINITIONS(Destroyable);
             /**

src/misc/epicsException.cpp

@@ -7,14 +7,17 @@
  *  @author mes
  */
 
-#include <pv/epicsException.h>
-
 #include <sstream>
-
 #include <cstdio>
 #include <cstring>
+#include <string>
 
-namespace epics{namespace pvData{
+#define epicsExportSharedSymbols
+#include <pv/epicsException.h>
+
+using std::string;
+
+namespace epics{ namespace pvData {
 
 void
 ExceptionMixin::print(FILE *fp) const
@@ -31,7 +34,7 @@ ExceptionMixin::print(FILE *fp) const
 #endif
 }
 
-std::string
+string
 ExceptionMixin::show() const
 {
     std::ostringstream out;
@@ -61,7 +64,7 @@ BaseException::what() const throw()
     try{
         if (base_msg.size()==0) {
             const char *base=std::logic_error::what();
-            std::string out, stack;
+            string out, stack;
 
             const ExceptionMixin *info=dynamic_cast<const ExceptionMixin*>(this);
             if(info) {

src/misc/epicsException.h

@@ -34,6 +34,10 @@
 #ifndef EPICSEXCEPTION_H_
 #define EPICSEXCEPTION_H_
 
+#ifdef _WIN32
+#pragma warning( push )
+#pragma warning(disable: 4275) // warning C4275: non dll-interface class used as base for dll-interface class (std::logic_error)
+#endif
 
 #include <stdexcept>
 #include <string>
@@ -43,6 +47,8 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#include <shareLib.h>
+
 // Users may redefine this for a large size if desired
 #ifndef EXCEPT_DEPTH
 #  define EXCEPT_DEPTH 20
@@ -67,7 +73,7 @@ namespace epics { namespace pvData {
 /* Stores file and line number given, and when possible the call stack
  * at the point where it was constructed
  */
-class ExceptionMixin {
+class epicsShareClass ExceptionMixin {
     const char *m_file;
     int m_line;
 #ifndef EXCEPT_USE_NONE
@@ -103,7 +109,7 @@ namespace detail {
      *
      * Takes advantage of the requirement that all exception classes
      * must be copy constructable.  Of course this also requires
-     * the and extra copy be constructed...
+     * that an extra copy be constructed...
      */
     template<typename E>
     class ExceptionMixed : public E, public ExceptionMixin {
@@ -197,7 +203,7 @@ do { \
 
 #endif // THROW_EXCEPTION_COMPAT
 
-class BaseException : public std::logic_error {
+class epicsShareClass BaseException : public std::logic_error {
 public:
     explicit BaseException(const std::string msg) : std::logic_error(msg) {}
 
@@ -209,6 +215,10 @@ private:
     mutable std::string base_msg;
 };
 
+#ifdef _WIN32
+#pragma warning( pop )
+#endif
+
 #define THROW_BASE_EXCEPTION(msg) THROW_EXCEPTION2(::epics::pvData::BaseException, msg)
 #define THROW_BASE_EXCEPTION_CAUSE(msg, cause) THROW_EXCEPTION2(::epics::pvData::BaseException, msg)
 

src/misc/event.cpp

@@ -19,11 +19,15 @@
 #include <epicsThread.h>
 #include <epicsMutex.h>
 #include <epicsEvent.h>
+
+#define epicsExportSharedSymbols
 #include <pv/noDefaultMethods.h>
 #include <pv/pvType.h>
 #include <pv/lock.h>
 #include <pv/event.h>
 
+using std::string;
+
 namespace epics { namespace pvData { 
 
 
@@ -41,27 +45,27 @@ Event::Event(bool full)
 
 void Event::signal()
 {
-    if(id==0) throw std::logic_error(String("event was deleted"));
+    if(id==0) throw std::logic_error(string("event was deleted"));
     epicsEventSignal(id);
 }
 
 bool Event::wait ()
 {
-    if(id==0) throw std::logic_error(String("event was deleted"));
+    if(id==0) throw std::logic_error(string("event was deleted"));
     epicsEventWaitStatus status = epicsEventWait(id);
     return status==epicsEventWaitOK ? true : false;
 }
 
 bool Event::wait ( double timeOut )
 {
-    if(id==0) throw std::logic_error(String("event was deleted"));
+    if(id==0) throw std::logic_error(string("event was deleted"));
     epicsEventWaitStatus status = epicsEventWaitWithTimeout(id,timeOut);
     return status==epicsEventWaitOK ? true : false;
 }
 
 bool Event::tryWait ()
 {
-    if(id==0) throw std::logic_error(String("event was deleted"));
+    if(id==0) throw std::logic_error(string("event was deleted"));
     epicsEventWaitStatus status = epicsEventTryWait(id);
     return status==epicsEventWaitOK ? true : false;
 }

src/misc/event.h

@@ -9,18 +9,33 @@
  */
 #ifndef EVENT_H
 #define EVENT_H
+
 #include <memory>
 #include <vector>
+
+#ifdef epicsExportSharedSymbols
+#define eventepicsExportSharedSymbols
+#undef epicsExportSharedSymbols
+#endif
+
 #include <epicsEvent.h>
+
+#ifdef eventepicsExportSharedSymbols
+#define epicsExportSharedSymbols
+#undef eventepicsExportSharedSymbols
+#endif
+
 #include <pv/pvType.h>
 #include <pv/sharedPtr.h>
 
+#include <shareLib.h>
+
 namespace epics { namespace pvData { 
 
 class Event;
 typedef std::tr1::shared_ptr<Event> EventPtr;
 
-class Event {
+class epicsShareClass Event {
 public:
     POINTER_DEFINITIONS(Event);
     explicit Event(bool = false);
@@ -31,7 +46,7 @@ public:
     bool tryWait (); /* false if empty */
 private:
     epicsEventId id;
-    String alreadyOn;
+    std::string alreadyOn;
 };
 
 }}

src/misc/executor.cpp

@@ -13,8 +13,11 @@
 #include <string>
 #include <cstdio>
 
+#define epicsExportSharedSymbols
 #include <pv/executor.h>
 
+using std::string;
+
 namespace epics { namespace pvData {
 
 // special instance to stop the executor thread
@@ -30,7 +33,7 @@ static
 std::tr1::shared_ptr<Command> shutdown(new ExecutorShutdown());
 
 
-Executor::Executor(String threadName,ThreadPriority priority)
+Executor::Executor(string const & threadName,ThreadPriority priority)
 :  thread(threadName,priority,this)
 {
 } 
@@ -57,6 +60,7 @@ void Executor::run()
             xx.lock();
         }
         CommandPtr command = head;
+        head = command->next;
         if(command.get()==NULL) continue;
         if(command.get()==shutdown.get()) break;
         xx.unlock();
@@ -83,7 +87,8 @@ void Executor::execute(CommandPtr const & command)
         moreWork.signal();
         return;
     }
-    if(tail.get()==NULL) return;
+    CommandPtr tail = head;
+    while(tail->next!=NULL) tail = tail->next;
     tail->next = command;   
 }
 

src/misc/executor.h

@@ -9,13 +9,17 @@
  */
 #ifndef EXECUTOR_H
 #define EXECUTOR_H
+
 #include <memory>
+
 #include <pv/pvType.h>
 #include <pv/lock.h>
 #include <pv/event.h>
 #include <pv/thread.h>
 #include <pv/sharedPtr.h>
 
+#include <shareLib.h>
+
 namespace epics { namespace pvData { 
 
 class Command;
@@ -23,7 +27,7 @@ class Executor;
 typedef std::tr1::shared_ptr<Command> CommandPtr;
 typedef std::tr1::shared_ptr<Executor> ExecutorPtr;
 
-class Command {
+class epicsShareClass Command {
 public:
     POINTER_DEFINITIONS(Command);
     virtual ~Command(){}
@@ -33,10 +37,10 @@ private:
     friend class Executor;
 };
 
-class Executor :  public Runnable{
+class epicsShareClass Executor : public Runnable{
 public:
     POINTER_DEFINITIONS(Executor);
-    Executor(String threadName,ThreadPriority priority);
+    Executor(std::string const & threadName,ThreadPriority priority);
     ~Executor();
     void execute(CommandPtr const &node);
     virtual void run();

src/misc/localStaticLock.cpp

@@ -8,6 +8,7 @@
  *  @author mse
  */
 
+#define epicsExportSharedSymbols
 #include <pv/localStaticLock.h>
 
 static int nifty_counter;

src/misc/localStaticLock.h

@@ -12,7 +12,9 @@
 
 #include <pv/lock.h>
 
-extern epics::pvData::Mutex& getLocalStaticInitMutex();
+#include <shareLib.h>
+
+epicsShareExtern epics::pvData::Mutex& getLocalStaticInitMutex();
 
 #if defined(__GNUC__) && __GNUC__ >= 4
 // noop
@@ -21,7 +23,7 @@ extern epics::pvData::Mutex& getLocalStaticInitMutex();
 #define LOCAL_STATIC_LOCK epics::pvData::Lock localStaticInitMutexLock(getLocalStaticInitMutex());
 #endif
 
-static class MutexInitializer {
+static class epicsShareClass MutexInitializer {
   public:
     MutexInitializer ();
     ~MutexInitializer ();

src/misc/lock.h

@@ -9,9 +9,25 @@
  */
 #ifndef LOCK_H
 #define LOCK_H
+
 #include <stdexcept>
+
+#ifdef epicsExportSharedSymbols
+#define lockepicsExportSharedSymbols
+#undef epicsExportSharedSymbols
+#endif
+
 #include <epicsMutex.h>
+
+#ifdef lockepicsExportSharedSymbols
+#define epicsExportSharedSymbols
+#undef lockepicsExportSharedSymbols
+#endif
+
 #include <pv/noDefaultMethods.h>
+
+#include <shareLib.h>
+
 /* This is based on item 14 of 
  * Effective C++, Third Edition, Scott Meyers
  */
@@ -22,7 +38,7 @@ namespace epics { namespace pvData {
 
 typedef epicsMutex Mutex;
 
-class Lock : private NoDefaultMethods {
+class epicsShareClass Lock : private NoDefaultMethods {
 public:
     explicit Lock(Mutex &m)
     : mutexPtr(m), locked(true)
@@ -44,6 +60,15 @@ public:
             locked=false;
         }
     }
+    bool tryLock()
+    {
+         if(locked) return true;
+         if(mutexPtr.tryLock()) {
+             locked = true;
+             return true;
+         }
+         return false;
+    }
     bool ownsLock() const{return locked;}
 private:
     Mutex &mutexPtr;

src/misc/messageQueue.cpp

@@ -8,14 +8,19 @@
  *  @author mrk
  */
 #include <string>
+
+#define epicsExportSharedSymbols
 #include <pv/messageQueue.h>
+
+using std::string;
+
 namespace epics { namespace pvData { 
 
 MessageNode::MessageNode()
 : messageType(infoMessage)
 {}
 
-String MessageNode::getMessage() const
+string MessageNode::getMessage() const
 {
     return message;
 }
@@ -56,7 +61,7 @@ void MessageQueue::release() {
     releaseUsed(lastGet);
     lastGet.reset();
 }
-bool MessageQueue::put(String message,MessageType messageType,bool replaceLast)
+bool MessageQueue::put(string message,MessageType messageType,bool replaceLast)
 {
     MessageNodePtr node = getFree();
     if(node.get()!= NULL) {

src/misc/messageQueue.h

@@ -18,6 +18,8 @@
 #include <pv/requester.h>
 #include <pv/queue.h>
 
+#include <shareLib.h>
+
 namespace epics { namespace pvData { 
 
 class MessageNode;
@@ -26,18 +28,18 @@ typedef std::tr1::shared_ptr<MessageNode> MessageNodePtr;
 typedef std::vector<MessageNodePtr> MessageNodePtrArray;
 typedef std::tr1::shared_ptr<MessageQueue> MessageQueuePtr;
 
-class MessageNode {
+class epicsShareClass MessageNode {
 public:
     MessageNode();
-    String getMessage() const;
+    std::string getMessage() const;
     MessageType getMessageType() const;
 private:
-    String message;
+    std::string message;
     MessageType messageType;
     friend class MessageQueue;
 };
 
-class MessageQueue : public Queue<MessageNode> {
+class epicsShareClass MessageQueue : public Queue<MessageNode> {
 public:
     POINTER_DEFINITIONS(MessageQueue);
     static MessageQueuePtr create(int size);
@@ -47,7 +49,7 @@ public:
     // must call release before next get
     void release();
     // return (false,true) if message (was not, was) put into queue
-    bool put(String message,MessageType messageType,bool replaceLast);
+    bool put(std::string message,MessageType messageType,bool replaceLast);
     bool isEmpty() ;
     bool isFull() ;
     int getClearOverrun();

src/misc/noDefaultMethods.h

@@ -9,13 +9,16 @@
  */
 #ifndef NO_DEFAULT_METHODS_H
 #define NO_DEFAULT_METHODS_H
+
+#include <shareLib.h>
+
 namespace epics { namespace pvData { 
 /* This is based on Item 6 of 
  * Effective C++, Third Edition, Scott Meyers
  */
 
 
-    class NoDefaultMethods {
+    class epicsShareClass NoDefaultMethods {
     protected:
     // allow by derived objects
     NoDefaultMethods(){};

src/misc/parseToPOD.cpp

@@ -0,0 +1,480 @@
+#include <ctype.h>
+#include <stdio.h>
+#include <errno.h>
+#include <float.h>
+#include <limits.h>
+
+#include <epicsVersion.h>
+
+#include <epicsMath.h>
+#include <epicsStdlib.h>
+#include <epicsString.h>
+#include <epicsConvert.h>
+
+#define epicsExportSharedSymbols
+#include "typeCast.h"
+
+using std::string;
+
+// need to use "long long" when sizeof(int)==sizeof(long)
+#if (ULONG_MAX == 0xfffffffful) || defined(_WIN32) || defined(__rtems__)
+#define NEED_LONGLONG
+#endif
+
+#ifndef EPICS_VERSION_INT
+#define VERSION_INT(V,R,M,P) ( ((V)<<24) | ((R)<<16) | ((M)<<8) | (P))
+#define EPICS_VERSION_INT VERSION_INT(EPICS_VERSION, EPICS_REVISION, EPICS_MODIFICATION, EPICS_PATCH_LEVEL)
+#endif
+
+#if EPICS_VERSION_INT < VERSION_INT(3,15,0,1)
+/* integer conversion primatives added to epicsStdlib.c in 3.15.0.1 */
+
+#define S_stdlib_noConversion 1 /* No digits to convert */
+#define S_stdlib_extraneous   2 /* Extraneous characters */
+#define S_stdlib_underflow    3 /* Too small to represent */
+#define S_stdlib_overflow     4 /* Too large to represent */
+#define S_stdlib_badBase      5 /* Number base not supported */
+
+static int
+epicsParseLong(const char *str, long *to, int base, char **units)
+{
+    int c;
+    char *endp;
+    long value;
+
+    while ((c = *str) && isspace(c))
+        ++str;
+
+    errno = 0;
+    value = strtol(str, &endp, base);
+
+    if (endp == str)
+        return S_stdlib_noConversion;
+    if (errno == EINVAL)    /* Not universally supported */
+        return S_stdlib_badBase;
+    if (errno == ERANGE)
+        return S_stdlib_overflow;
+
+    while ((c = *endp) && isspace(c))
+        ++endp;
+    if (c && !units)
+        return S_stdlib_extraneous;
+
+    *to = value;
+    if (units)
+        *units = endp;
+    return 0;
+}
+
+static int
+epicsParseULong(const char *str, unsigned long *to, int base, char **units)
+{
+    int c;
+    char *endp;
+    unsigned long value;
+
+    while ((c = *str) && isspace(c))
+        ++str;
+
+    errno = 0;
+    value = strtoul(str, &endp, base);
+
+    if (endp == str)
+        return S_stdlib_noConversion;
+    if (errno == EINVAL)    /* Not universally supported */
+        return S_stdlib_badBase;
+    if (errno == ERANGE)
+        return S_stdlib_overflow;
+
+    while ((c = *endp) && isspace(c))
+        ++endp;
+    if (c && !units)
+        return S_stdlib_extraneous;
+
+    *to = value;
+    if (units)
+        *units = endp;
+    return 0;
+}
+
+static int
+epicsParseDouble(const char *str, double *to, char **units)
+{
+    int c;
+    char *endp;
+    double value;
+
+    while ((c = *str) && isspace(c))
+        ++str;
+
+    errno = 0;
+    value = epicsStrtod(str, &endp);
+
+    if (endp == str)
+        return S_stdlib_noConversion;
+    if (errno == ERANGE)
+        return (value == 0) ? S_stdlib_underflow : S_stdlib_overflow;
+
+    while ((c = *endp) && isspace(c))
+        ++endp;
+    if (c && !units)
+        return S_stdlib_extraneous;
+
+    *to = value;
+    if (units)
+        *units = endp;
+    return 0;
+}
+
+
+/* These call the primitives */
+
+static int
+epicsParseInt8(const char *str, epicsInt8 *to, int base, char **units)
+{
+    long value;
+    int status = epicsParseLong(str, &value, base, units);
+
+    if (status)
+        return status;
+
+    if (value < -0x80 || value > 0x7f)
+        return S_stdlib_overflow;
+
+    *to = (epicsInt8)value;
+    return 0;
+}
+
+static int
+epicsParseUInt8(const char *str, epicsUInt8 *to, int base, char **units)
+{
+    unsigned long value;
+    int status = epicsParseULong(str, &value, base, units);
+
+    if (status)
+        return status;
+
+    if (value > 0xff && value <= ~0xffUL)
+        return S_stdlib_overflow;
+
+    *to = (epicsUInt8)value;
+    return 0;
+}
+
+static int
+epicsParseInt16(const char *str, epicsInt16 *to, int base, char **units)
+{
+    long value;
+    int status = epicsParseLong(str, &value, base, units);
+
+    if (status)
+        return status;
+
+    if (value < -0x8000 || value > 0x7fff)
+        return S_stdlib_overflow;
+
+    *to = (epicsInt16)value;
+    return 0;
+}
+
+static int
+epicsParseUInt16(const char *str, epicsUInt16 *to, int base, char **units)
+{
+    unsigned long value;
+    int status = epicsParseULong(str, &value, base, units);
+
+    if (status)
+        return status;
+
+    if (value > 0xffff && value <= ~0xffffUL)
+        return S_stdlib_overflow;
+
+    *to = (epicsUInt16)value;
+    return 0;
+}
+
+static int
+epicsParseInt32(const char *str, epicsInt32 *to, int base, char **units)
+{
+    long value;
+    int status = epicsParseLong(str, &value, base, units);
+
+    if (status)
+        return status;
+
+#if (LONG_MAX > 0x7fffffff)
+    if (value < -0x80000000L || value > 0x7fffffffL)
+        return S_stdlib_overflow;
+#endif
+
+    *to = (epicsInt32)value;
+    return 0;
+}
+
+static int
+epicsParseUInt32(const char *str, epicsUInt32 *to, int base, char **units)
+{
+    unsigned long value;
+    int status = epicsParseULong(str, &value, base, units);
+
+    if (status)
+        return status;
+
+#if (ULONG_MAX > 0xffffffff)
+    if (value > 0xffffffffUL && value <= ~0xffffffffUL)
+        return S_stdlib_overflow;
+#endif
+
+    *to = (epicsUInt32)value;
+    return 0;
+}
+
+static int
+epicsParseFloat(const char *str, float *to, char **units)
+{
+    double value, abs;
+    int status = epicsParseDouble(str, &value, units);
+
+    if (status)
+        return status;
+
+    abs = fabs(value);
+    if (value > 0 && abs <= FLT_MIN)
+        return S_stdlib_underflow;
+    if (finite(value) && abs >= FLT_MAX)
+        return S_stdlib_overflow;
+
+    *to = (float)value;
+    return 0;
+}
+#endif
+
+#if defined(NEED_LONGLONG) && (defined(__vxworks) || defined (_WIN32))
+static
+long long strtoll(const char *ptr, char ** endp, int base)
+{
+    size_t inlen = strlen(ptr);
+    long long result;
+    unsigned char offset=0;
+    
+    assert(base==0);
+
+    if(ptr[0]=='-')
+        offset=1;
+
+    try {
+        std::istringstream strm(ptr);
+
+        assert(strm.rdbuf()->in_avail()>=0
+               && inlen==(size_t)strm.rdbuf()->in_avail());
+
+        if(ptr[offset]=='0') {
+            if(ptr[offset+1]=='x')
+                strm >> std::hex;
+            else
+                strm >> std::oct;
+        }
+
+        strm >> result;
+        if(strm.fail())
+            goto noconvert;
+
+        assert(strm.rdbuf()->in_avail()>=0
+               && inlen>=(size_t)strm.rdbuf()->in_avail());
+
+        size_t consumed = inlen - strm.rdbuf()->in_avail();
+        *endp = (char*)ptr + consumed;
+
+        return result;
+        
+    } catch(...) {
+        goto noconvert;
+    }
+
+    return result;
+noconvert:
+    *endp = (char*)ptr;
+    return 0;
+}
+
+static
+unsigned long long strtoull(const char *ptr, char ** endp, int base)
+{
+    size_t inlen = strlen(ptr);
+    unsigned long long result;
+
+    assert(base==0);
+
+    try {
+        std::istringstream strm(ptr);
+
+        assert(strm.rdbuf()->in_avail()>=0
+               && inlen==(size_t)strm.rdbuf()->in_avail());
+
+        if(ptr[0]=='0') {
+            if(ptr[1]=='x')
+                strm >> std::hex;
+            else
+                strm >> std::oct;
+        }
+
+        strm >> result;
+        if(strm.fail())
+            goto noconvert;
+
+        assert(strm.rdbuf()->in_avail()>=0
+               && inlen>=(size_t)strm.rdbuf()->in_avail());
+
+        size_t consumed = inlen - strm.rdbuf()->in_avail();
+        *endp = (char*)ptr + consumed;
+
+        return result;
+
+    } catch(...) {
+        goto noconvert;
+    }
+
+    return result;
+noconvert:
+    *endp = (char*)ptr;
+    return 0;
+}
+
+#endif
+
+/* do we need long long? */
+#ifdef NEED_LONGLONG
+static int
+epicsParseLongLong(const char *str, long long *to, int base, char **units)
+{
+    int c;
+    char *endp;
+    long long value;
+
+    while ((c = *str) && isspace(c))
+        ++str;
+
+    errno = 0;
+    value = strtoll(str, &endp, base);
+
+    if (endp == str)
+        return S_stdlib_noConversion;
+    if (errno == EINVAL)    /* Not universally supported */
+        return S_stdlib_badBase;
+    if (errno == ERANGE)
+        return S_stdlib_overflow;
+
+    while ((c = *endp) && isspace(c))
+        ++endp;
+    if (c && !units)
+        return S_stdlib_extraneous;
+
+    *to = value;
+    if (units)
+        *units = endp;
+    return 0;
+}
+
+static int
+epicsParseULongLong(const char *str, unsigned long long *to, int base, char **units)
+{
+    int c;
+    char *endp;
+    unsigned long long value;
+
+    while ((c = *str) && isspace(c))
+        ++str;
+
+    errno = 0;
+    value = strtoull(str, &endp, base);
+
+    if (endp == str)
+        return S_stdlib_noConversion;
+    if (errno == EINVAL)    /* Not universally supported */
+        return S_stdlib_badBase;
+    if (errno == ERANGE)
+        return S_stdlib_overflow;
+
+    while ((c = *endp) && isspace(c))
+        ++endp;
+    if (c && !units)
+        return S_stdlib_extraneous;
+
+    *to = value;
+    if (units)
+        *units = endp;
+    return 0;
+}
+#endif
+
+static
+void handleParseError(int err)
+{
+    switch(err) {
+    case 0: break;
+    case S_stdlib_noConversion: throw std::runtime_error("parseToPOD: No digits to convert");
+    case S_stdlib_extraneous: throw std::runtime_error("parseToPOD: Extraneous characters");
+    case S_stdlib_underflow: throw std::runtime_error("parseToPOD: Too small to represent");
+    case S_stdlib_overflow: throw std::runtime_error("parseToPOD: Too large to represent");
+    case S_stdlib_badBase: throw std::runtime_error("parseToPOD: Number base not supported");
+    default:
+        throw std::runtime_error("parseToPOD: unknown error");
+    }
+}
+
+namespace epics { namespace pvData { namespace detail {
+
+void parseToPOD(const string & in, boolean *out)
+{
+    if(epicsStrCaseCmp(in.c_str(),"true")==0)
+        *out = 1;
+    else if(epicsStrCaseCmp(in.c_str(),"false")==0)
+        *out = 0;
+    else
+        throw std::runtime_error("parseToPOD: string no match true/false");
+}
+
+#define INTFN(T, S) \
+void parseToPOD(const string& in, T *out) { \
+    epics ## S temp; \
+    int err = epicsParse ## S (in.c_str(), &temp, 0, NULL); \
+    if(err)   handleParseError(err); \
+    else      *out = temp; \
+}
+
+INTFN(int8, Int8);
+INTFN(uint8, UInt8);
+INTFN(int16_t, Int16);
+INTFN(uint16_t, UInt16);
+INTFN(int32_t, Int32);
+INTFN(uint32_t, UInt32);
+
+void parseToPOD(const string& in, int64_t *out) {
+#ifdef NEED_LONGLONG
+    int err = epicsParseLongLong(in.c_str(), out, 0, NULL);
+#else
+    int err = epicsParseLong(in.c_str(), out, 0, NULL);
+#endif
+    if(err)   handleParseError(err);
+}
+
+void parseToPOD(const string& in, uint64_t *out) {
+#ifdef NEED_LONGLONG
+    int err = epicsParseULongLong(in.c_str(), out, 0, NULL);
+#else
+    int err = epicsParseULong(in.c_str(), out, 0, NULL);
+#endif
+    if(err)   handleParseError(err);
+}
+
+void parseToPOD(const string& in, float *out) {
+    int err = epicsParseFloat(in.c_str(), out, NULL);
+    if(err)   handleParseError(err);
+}
+
+void parseToPOD(const string& in, double *out) {
+    int err = epicsParseDouble(in.c_str(), out, NULL);
+    if(err)   handleParseError(err);
+}
+
+}}}

src/misc/queue.h

@@ -7,12 +7,15 @@
 /**
  *  @author mrk
  */
+#ifndef QUEUE_H
+#define QUEUE_H
+
 #include <vector>
 #include <cstddef>
 #include <stdexcept>
+
 #include <pv/sharedPtr.h>
-#ifndef QUEUE_H
-#define QUEUE_H
+
 namespace epics { namespace pvData { 
 
 template <typename T>
@@ -29,12 +32,13 @@ public:
     int getNumberFree();
     int getNumberUsed();
     queueElementPtr & getFree();
-    void setUsed(queueElementPtr &element);
+    void setUsed(queueElementPtr const &element);
     queueElementPtr & getUsed();
-    void releaseUsed(queueElementPtr &element);
+    void releaseUsed(queueElementPtr const &element);
 private:
     queueElementPtr nullElement;
     queueElementPtrArray elements;
+    // TODO use size_t instead
     int size;
     int numberFree;
     int numberUsed;
@@ -46,7 +50,7 @@ private:
 
 template <typename T>
 Queue<T>::Queue(std::vector<queueElementPtr> &xxx)
-: size(xxx.size()),
+: size(static_cast<int>(xxx.size())),
   numberFree(size),
   numberUsed(0),
   nextGetFree(0),
@@ -92,7 +96,7 @@ std::tr1::shared_ptr<T> & Queue<T>::getFree()
 }
 
 template <typename T>
-void Queue<T>::setUsed(std::tr1::shared_ptr<T> &element)
+void Queue<T>::setUsed(std::tr1::shared_ptr<T> const &element)
 {
    if(element!=elements[nextSetUsed++]) {
         throw std::logic_error("not correct queueElement");
@@ -112,7 +116,7 @@ std::tr1::shared_ptr<T> & Queue<T>::getUsed()
 }
 
 template <typename T>
-void Queue<T>::releaseUsed(std::tr1::shared_ptr<T> &element)
+void Queue<T>::releaseUsed(std::tr1::shared_ptr<T> const &element)
 {
     if(element!=elements[nextReleaseUsed++]) {
         throw std::logic_error(

src/misc/requester.cpp

@@ -9,15 +9,20 @@
  */
 #include <string>
 #include <cstdio>
+
+#define epicsExportSharedSymbols
 #include <pv/lock.h>
 #include <pv/requester.h>
+
+using std::string;
+
 namespace epics { namespace pvData { 
 
-const size_t messageTypeCount = 4; 
-static StringArray messageTypeName(messageTypeCount);
+static StringArray messageTypeName(MESSAGE_TYPE_COUNT);
 
-String getMessageTypeName(MessageType messageType)
+string getMessageTypeName(MessageType messageType)
 {
+    // TODO not thread-safe
     static Mutex mutex;
     Lock xx(mutex);
     if(messageTypeName[0].size()==0) {

src/misc/requester.h

@@ -10,9 +10,12 @@
 #ifndef REQUESTER_H
 #define REQUESTER_H
 #include <string>
+
 #include <pv/pvType.h>
 #include <pv/sharedPtr.h>
 
+#include <shareLib.h>
+
 namespace epics { namespace pvData { 
 
 class Requester;
@@ -21,15 +24,16 @@ typedef std::tr1::shared_ptr<Requester> RequesterPtr;
 enum MessageType {
    infoMessage,warningMessage,errorMessage,fatalErrorMessage
 };
+#define MESSAGE_TYPE_COUNT 4
 
-extern String getMessageTypeName(MessageType messageType);
-extern const size_t messageTypeCount;
-class Requester {
+epicsShareExtern std::string getMessageTypeName(MessageType messageType);
+
+class epicsShareClass Requester {
 public:
     POINTER_DEFINITIONS(Requester);
     virtual ~Requester(){}
-    virtual String getRequesterName() = 0;
-    virtual void message(String const & message,MessageType messageType) = 0;
+    virtual std::string getRequesterName() = 0;
+    virtual void message(std::string const & message,MessageType messageType) = 0;
 };
 
 }}

src/misc/serialize.h

@@ -9,8 +9,12 @@
  */
 #ifndef SERIALIZE_H
 #define SERIALIZE_H
+
 #include <pv/byteBuffer.h>
 #include <pv/sharedPtr.h>
+
+#include <shareLib.h>
+
 namespace epics { namespace pvData { 
 
     class SerializableControl;
@@ -21,24 +25,28 @@ namespace epics { namespace pvData {
     class BitSet;
     class Field;
 
-    class SerializableControl {
+    class epicsShareClass SerializableControl {
     public:
         virtual ~SerializableControl(){}
         virtual void flushSerializeBuffer() =0;
         virtual void ensureBuffer(std::size_t size) =0;
         virtual void alignBuffer(std::size_t alignment) =0;
+        virtual bool directSerialize(ByteBuffer *existingBuffer, const char* toSerialize,
+                                     std::size_t elementCount, std::size_t elementSize) = 0;
         virtual void cachedSerialize(std::tr1::shared_ptr<const Field> const & field, ByteBuffer* buffer) = 0;
     };
 
-    class DeserializableControl {
+    class epicsShareClass DeserializableControl {
     public:
         virtual ~DeserializableControl(){}
         virtual void ensureData(std::size_t size) =0;
         virtual void alignData(std::size_t alignment) =0;
+        virtual bool directDeserialize(ByteBuffer *existingBuffer, char* deserializeTo,
+                                       std::size_t elementCount, std::size_t elementSize) = 0;
         virtual std::tr1::shared_ptr<const Field> cachedDeserialize(ByteBuffer* buffer) = 0;
     };
 
-    class Serializable {
+    class epicsShareClass Serializable {
     public:
         virtual ~Serializable(){}
         virtual void serialize(ByteBuffer *buffer,
@@ -47,7 +55,7 @@ namespace epics { namespace pvData {
             DeserializableControl *flusher) = 0;
     };
 
-    class BitSetSerializable {
+    class epicsShareClass BitSetSerializable {
     public:
         virtual ~BitSetSerializable(){}
         virtual void serialize(ByteBuffer *buffer,
@@ -57,7 +65,7 @@ namespace epics { namespace pvData {
     };
 
 
-    class SerializableArray : virtual public Serializable {
+    class epicsShareClass SerializableArray : virtual public Serializable {
     public:
         virtual ~SerializableArray(){}
         virtual void serialize(ByteBuffer *buffer,

src/misc/serializeHelper.cpp

@@ -11,13 +11,13 @@
  */
 
 #include <algorithm>
-#include <pv/pvType.h>
 
+#define epicsExportSharedSymbols
+#include <pv/pvType.h>
 #include <pv/epicsException.h>
 #include <pv/byteBuffer.h>
 #include <pv/serializeHelper.h>
 
-
 using namespace std;
 
 namespace epics {
@@ -33,11 +33,11 @@ namespace epics {
             if(s==(std::size_t)-1) // null    // TODO remove
                 buffer->putByte(-1);
             else if(s<254)
-                buffer->putByte(s);
+                buffer->putByte(static_cast<int8>(s));
             else
             {
                 buffer->putByte(-2);
-                buffer->putInt(s); // (byte)-2 + size
+                buffer->putInt(static_cast<uint32>(s)); // (byte)-2 + size
             }
         }
 
@@ -57,7 +57,7 @@ namespace epics {
                 return (std::size_t)(b<0 ? b+256 : b);
         }
 
-        void SerializeHelper::serializeString(const String& value,
+        void SerializeHelper::serializeString(const string& value,
                 ByteBuffer* buffer, SerializableControl* flusher) {
             std::size_t len = value.length();
             SerializeHelper::writeSize(len, buffer, flusher);
@@ -74,17 +74,17 @@ namespace epics {
             }
         }
 
-        void SerializeHelper::serializeSubstring(const String& value,
+        void SerializeHelper::serializeSubstring(const string& value,
                 std::size_t offset, std::size_t count, ByteBuffer* buffer,
                 SerializableControl* flusher) {
-            if(offset<0)
+            /*if(offset<0)
                 offset = 0;
-            else if(offset>(std::size_t)value.length()) offset = value.length();
+            else*/ if(offset>value.length()) offset = value.length();
 
-            if(offset+count>(std::size_t)value.length()) count = value.length()-offset;
+            if(offset+count>value.length()) count = value.length()-offset;
 
             SerializeHelper::writeSize(count, buffer, flusher);
-            if (count<=0) return;
+            /*if (count<=0)*/ return;
             std::size_t i = 0;
             while(true) {
                 std::size_t maxToWrite = min(count-i, buffer->getRemaining());
@@ -97,9 +97,9 @@ namespace epics {
             }
         }
         
-        static String emptyString;
+        static string emptyStringtring;
 
-        String SerializeHelper::deserializeString(ByteBuffer* buffer,
+        string SerializeHelper::deserializeString(ByteBuffer* buffer,
                 DeserializableControl* control) {
 
             std::size_t size = SerializeHelper::readSize(buffer, control);
@@ -109,13 +109,13 @@ namespace epics {
                 {
                     // entire string is in buffer, simply create a string out of it (copy)
                     std::size_t pos = buffer->getPosition();
-                    String str(buffer->getArray()+pos, size);
+                    string str(buffer->getArray()+pos, size);
                     buffer->setPosition(pos+size);
                     return str;
                 }
                 else
                 {
-                    String str;
+                    string str;
                     str.reserve(size);
                     try {
                         std::size_t i = 0;
@@ -137,7 +137,7 @@ namespace epics {
                 }
             }
             else
-                return emptyString;
+                return emptyStringtring;
         }
 
     }

src/misc/serializeHelper.h

@@ -18,10 +18,12 @@
 #include <pv/noDefaultMethods.h>
 #include <pv/pvIntrospect.h>
 
+#include <shareLib.h>
+
 namespace epics {
     namespace pvData {
 
-        class SerializeHelper : public NoDefaultMethods {
+        class epicsShareClass SerializeHelper : public NoDefaultMethods {
         public:
 
             /**
@@ -44,30 +46,30 @@ namespace epics {
                     DeserializableControl* control);
 
             /**
-             * String serialization helper method.
+             * std::string serialization helper method.
              *
-             * @param[in] value String to serialize
+             * @param[in] value std::string to serialize
              * @param[in] buffer serialization buffer
              * @param[in] flusher flusher
              */
-            static void serializeString(const String& value, ByteBuffer* buffer,
+            static void serializeString(const std::string& value, ByteBuffer* buffer,
                     SerializableControl* flusher);
 
             /**
-             * String serialization helper method.
+             * std::string serialization helper method.
              *
-             * @param[in] value String to serialize
+             * @param[in] value std::string to serialize
              * @param[in] offset start of the substring in {@code value}
              * @param[in] count the number of characters to write
              * @param[in] buffer serialization buffer
              * @param[in] flusher flusher
              */
-            static void serializeSubstring(const String& value, std::size_t offset,
+            static void serializeSubstring(const std::string& value, std::size_t offset,
                     std::size_t count, ByteBuffer* buffer,
                     SerializableControl* flusher);
 
             /**
-             * String deserialization helper method.
+             * std::string deserialization helper method.
              * TODO This method cannot return "null", but Java implementation
              * could have serialized "null" value as well. We need to decide
              * how to deserialize "null".
@@ -80,7 +82,7 @@ namespace epics {
              * could have serialized "null" value as well. We need to decide
              * how to deserialize "null".
              */
-            static String deserializeString(ByteBuffer* buffer,
+            static std::string deserializeString(ByteBuffer* buffer,
                     DeserializableControl* control);
 
         private:

src/misc/sharedPtr.h

@@ -4,7 +4,7 @@
  * in file LICENSE that is included with this distribution.
  */
 /**
- *  @author Michael DavidSaver
+ *  @author Michael Davidsaver
  */
 
 #ifndef SHAREDPTR_H
@@ -77,6 +77,6 @@
     typedef std::tr1::shared_ptr<clazz> shared_pointer; \
     typedef std::tr1::shared_ptr<const clazz> const_shared_pointer; \
     typedef std::tr1::weak_ptr<clazz> weak_pointer; \
-    typedef std::tr1::weak_ptr<const clazz> const_weak_pointer;
+    typedef std::tr1::weak_ptr<const clazz> const_weak_pointer
 
 #endif // SHAREDPTR_H

src/misc/status.cpp

@@ -7,14 +7,17 @@
 /**
  *  @author mrk
  */
-#include <pv/status.h>
+#define epicsExportSharedSymbols
 #include <pv/epicsException.h>
 #include <pv/serializeHelper.h>
+#include <pv/status.h>
+
+using std::string;
 
 namespace epics { namespace pvData {
 
 const char* Status::StatusTypeName[] = { "OK", "WARNING", "ERROR", "FATAL" };
-epics::pvData::String Status::m_emptyString;
+string Status::m_emptyStringtring;
 
 Status Status::Ok;
 
@@ -25,7 +28,7 @@ Status::Status() :
 {
 }
 
-Status::Status(StatusType type, String const & message) :
+Status::Status(StatusType type, string const & message) :
     m_statusType(type), m_message(message)
 {
     if (type == STATUSTYPE_OK)
@@ -34,7 +37,7 @@ Status::Status(StatusType type, String const & message) :
     //PVDATA_REFCOUNT_MONITOR_CONSTRUCT(status);
 }
 
-Status::Status(StatusType type, String const & message, String const & stackDump) :
+Status::Status(StatusType type, string const & message, string const & stackDump) :
     m_statusType(type), m_message(message), m_stackDump(stackDump)
 {
     if (type == STATUSTYPE_OK)
@@ -53,12 +56,12 @@ Status::StatusType Status::getType() const
 }
     
 
-epics::pvData::String Status::getMessage() const
+string Status::getMessage() const
 {
     return m_message;
 }
     
-epics::pvData::String Status::getStackDump() const
+string Status::getStackDump() const
 {
     return m_stackDump;
 }
@@ -99,7 +102,7 @@ void Status::deserialize(ByteBuffer *buffer, DeserializableControl *flusher)
 	   if (m_statusType != STATUSTYPE_OK)
 	   {
 	       m_statusType = STATUSTYPE_OK;
-	       m_message = m_stackDump = m_emptyString;
+	       m_message = m_stackDump = m_emptyStringtring;
 	   }
 	}
 	else
@@ -110,29 +113,26 @@ void Status::deserialize(ByteBuffer *buffer, DeserializableControl *flusher)
 	}
 }
 
-String Status::toString() const
+void Status::dump(std::ostream& o) const
 {
-    String str;
-    toString(&str, 0);
-    return str;
+    o << "Status [type=" << Status::StatusTypeName[m_statusType];
+    if (!m_message.empty())
+        o << ", message=" << m_message;
+    if (!m_stackDump.empty())
+        o << ", stackDump=" << std::endl << m_stackDump;
+    o << ']';
+}    
+
+std::ostream& operator<<(std::ostream& o, const Status& status)
+{
+    status.dump(o);
+    return o;
 }
 
-void Status::toString(StringBuilder buffer, int indentLevel) const
+std::ostream& operator<<(std::ostream& o, const Status::StatusType& statusType)
 {
-    *buffer += "Status [type=";
-    *buffer += StatusTypeName[m_statusType];
-    if (!m_message.empty())
-    {
-        *buffer += ", message=";
-        *buffer += m_message;
-    }
-    if (!m_stackDump.empty())
-    {
-        *buffer += ", stackDump=";
-        *buffer += '\n';
-        *buffer += m_stackDump;
-    }
-    *buffer += ']';
+    o << Status::StatusTypeName[statusType];
+    return o;
 }
 
 }}

src/misc/status.h

@@ -10,17 +10,21 @@
 #ifndef STATUS_H
 #define STATUS_H
 
+#include <ostream>
+
 #include <pv/serialize.h>
 #include <pv/byteBuffer.h>
 #include <pv/sharedPtr.h>
 
+#include <shareLib.h>
+
 namespace epics { namespace pvData { 
 
         /**
          * Status.
          * @author mse
          */
-        class Status : public epics::pvData::Serializable {
+        class epicsShareClass Status : public epics::pvData::Serializable {
             public:
                 POINTER_DEFINITIONS(Status);
         	/**
@@ -49,12 +53,12 @@ namespace epics { namespace pvData {
         	/**
         	 * Create non-OK status.
         	 */
-            Status(StatusType type, epics::pvData::String const & message);
+            Status(StatusType type, std::string const & message);
         
             /**
              * Create non-OK status.
              */
-            Status(StatusType type, epics::pvData::String const & message, epics::pvData::String const & stackDump);
+            Status(StatusType type, std::string const & message, std::string const & stackDump);
         
             ~Status();
             
@@ -68,13 +72,13 @@ namespace epics { namespace pvData {
              * Get error message describing an error. Required if error status.
              * @return error message.
              */
-            epics::pvData::String getMessage() const;
+            std::string getMessage() const;
 
             /**
              * Get stack dump where error (exception) happened. Optional.
              * @return stack dump.
              */
-            epics::pvData::String getStackDump() const;
+            std::string getStackDump() const;
 
             /**
              * Convenient OK test. Same as <code>(getType() == StatusType.OK)</code>.
@@ -91,20 +95,23 @@ namespace epics { namespace pvData {
              */
             bool isSuccess() const;
 
-            String toString() const;
-            void toString(StringBuilder buffer, int indentLevel = 0) const;
-            
             void serialize(ByteBuffer *buffer, SerializableControl *flusher) const;
             void deserialize(ByteBuffer *buffer, DeserializableControl *flusher);
     
+            void dump(std::ostream& o) const;
+
             private:
             
-            static epics::pvData::String m_emptyString;
+            static std::string m_emptyStringtring;
             
             StatusType m_statusType;
-            String m_message;
-            String m_stackDump;
+            std::string m_message;
+            std::string m_stackDump;
+
         };
 
+        epicsShareExtern std::ostream& operator<<(std::ostream& o, const Status& status);
+        epicsShareExtern std::ostream& operator<<(std::ostream& o, const Status::StatusType& statusType);
+
 }}
 #endif  /* STATUS_H */

src/misc/templateMeta.h

@@ -0,0 +1,120 @@
+/**
+ * Copyright - See the COPYRIGHT that is included with this distribution.
+ * EPICS pvData is distributed subject to a Software License Agreement found
+ * in file LICENSE that is included with this distribution.
+ */
+/** C++ Template meta programming helpers
+ */
+#ifndef TEMPLATEMETA_H
+#define TEMPLATEMETA_H
+
+// gently nudge the compiler to inline our wrappers
+// Warning: Only use this when the template body is *small*.
+//          You have been warned!
+#if defined(__GNUC__) && __GNUC__>=3
+# define FORCE_INLINE __attribute__((always_inline)) inline
+#elif defined(_MSC_VER)
+# define FORCE_INLINE __forceinline
+#else
+# define FORCE_INLINE inline
+#endif
+
+namespace epics { namespace pvData {
+namespace meta {
+
+/** If needed, add the 'const' qualifier to the provided type.
+ *
+ * Avoids adding the const qualifier twice (aka 'const const int')
+ @code
+   assert(typeid(decorate_const<int>::type)==typeid(const int));
+   assert(typeid(decorate_const<const int>::type)==typeid(const int));
+ @endcode
+ */
+template<typename T> struct decorate_const { typedef const T type; };
+template<typename T> struct decorate_const<const T> { typedef const T type; };
+
+/** Remove the 'const' qualifier if present
+ @code
+   assert(typeid(strip_const<int>::type)==typeid(int));
+   assert(typeid(strip_const<const int>::type)==typeid(int));
+ @endcode
+ */
+template<typename T> struct strip_const { typedef T type; };
+template<typename T> struct strip_const<const T> { typedef T type; };
+
+/** test to allow specialization only when A!=B
+ *
+ @code
+   template<typename A, typename B, class Enable = void>
+   struct myTemp {...};
+
+   // specialization when A==B
+   template<typename T>
+   struct myTemp<T,T> {...};
+
+   // specialization for A is 'int',
+   // enabler needed to remove ambiguity when B is 'int'.
+   template<typename B>
+   struct myTemp<int, B, typename meta::not_same_type<int,B>::type>
+   {...};
+ @endcode
+ */
+template<typename A, typename B, typename R = void>
+struct not_same_type {typedef R type;};
+template<typename A>
+struct not_same_type<A,A> {};
+
+//! Select if both A and B have the same root type (excluding const qualifier)
+template<typename A, typename B, class R = void> struct same_root {};
+template<typename T, class R> struct same_root<T,T,R> { typedef R type; };
+template<typename T, class R> struct same_root<const T,T,R> { typedef R type; };
+template<typename T, class R> struct same_root<T,const T,R> { typedef R type; };
+
+namespace detail {
+    struct _const_yes {};
+    struct _const_no {};
+    template<typename T> struct _has_const { typedef _const_no type; };
+    template<typename T> struct _has_const<const T> { typedef _const_yes type; };
+
+    template<typename A, typename B, class R = void>  struct _same_type {};
+    template<typename T, class R> struct _same_type<T,T,R> { typedef R type; };
+} // namespace detail
+
+//! Check if both A and B are either const or non-const.
+template<typename A, typename B, class R = void>
+struct same_const :
+        public detail::_same_type<typename detail::_has_const<A>::type,
+                                  typename detail::_has_const<B>::type,
+                                  R>
+{};
+
+/** test if provided type is 'void' or 'const void'
+ *
+ * Avoid having to explicitly specialize for both
+ @code
+   template<typename A, class Enable = void>
+   struct myTemp {...};
+
+   // specialization when A is 'void' or 'const void'
+   template<typename A>
+   struct myTemp<A, typename meta::is_void<A>::type> {...};
+ @endcode
+ */
+template<typename T, class R = void> struct is_void {};
+template<class R> struct is_void<void,R> { typedef R type; };
+template<class R> struct is_void<const void,R> { typedef R type; };
+
+//! Inverse of is_void<T>
+template<typename T, class R = void> struct is_not_void { typedef R type; };
+template<> struct is_not_void<void> {};
+template<> struct is_not_void<const void> {};
+
+//! Enabler to ensure that both conditions A and B are true
+template<typename A, typename B, class EnableA = void, class EnableB = void, class R = void>
+struct _and {};
+template<typename A, typename B, class R>
+struct _and<A,B, typename A::type, typename B::type, R> { typedef R type; };
+
+}}}
+
+#endif // TEMPLATEMETA_H