Merge pull request #32 from dhickin/make_release_5.0.4

Make release 5.0.4

.gitignore

@@ -0,0 +1,15 @@
+bin/
+lib/
+doc/
+include/
+db/
+dbd/
+documentation/html
+documentation/*.tag
+envPaths
+configure/*.local
+configure/RELEASE.*
+configure/CONFIG_SITE.*
+!configure/ExampleRELEASE.local
+**/O.*
+QtC-*

.hgflow

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

.hgignore

@@ -1,12 +0,0 @@
-QtC-
-bin/
-lib/
-doc/
-include/
-db/
-dbd/
-documentation/html
-documentation/*.tag
-envPaths
-configure/.*\.local
-/O\..*

.hgtags

@@ -1,18 +0,0 @@
-459f10877e5628241704f31437b4cbd342df0798 test1
-6e8a22d01e824702088195c08bf50bfb6f293de5 1.0-BETA
-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
-260f35b9c6cad113f242c83c89be9cdac802f610 3.1.0
-1348c22b125861ecb9da95b23f20314b167ee155 4.0.0
-1348c22b125861ecb9da95b23f20314b167ee155 4.0.0
-9c62aaa83b9db6ad69740a6bb46d6529e0e60b78 4.0.0
-9c62aaa83b9db6ad69740a6bb46d6529e0e60b78 4.0.0
-f9f187685032ebf4b108c759be196fda055c9e42 4.0.0

COPYRIGHT

@@ -1,12 +1,31 @@
-/****************************************************
-Copyright (c) 2008 All rights reserved
-Copyright (c) 2008 Martin R. Kraimer
-Copyright (c) 2006 The University of Chicago, as Operator of Argonne
-     National Laboratory.
+This software is in part copyrighted by the various organizations and
+individuals listed below. Permission to use it is set out in the file
+LICENSE that accompanies the software.
+
+In no event shall any copyright holder be liable to any party for
+direct, indirect, special, incidental, or consequential damages arising
+out of the use of this software, its documentation, or any derivatives
+thereof, even if they have been advised of the possibility of such
+damage.
+
+The copyright holders specifically disclaim any warranties, including,
+but not limited to, the implied warranties of merchantability, fitness
+for a particular purpose, and non-infringement. This software is
+provided on an "as is" basis, and the copyright holders have no
+obligation either collectively or individually to provide maintenance,
+support, updates, enhancements, or modifications.
+
+Copyright (c) 2006 - 2015 All rights reserved
+
+Martin R. Kraimer
+The University of Chicago, as Operator of Argonne National Laboratory.
 Deutsches Elektronen-Synchroton, Member of the Helmholtz Association,
     (DESY), HAMBURG, GERMANY,
 BERLINER SPEICHERRING GESELLSCHAFT FUER SYNCHROTRONSTRAHLUNG M.B.H.
     (BESSY), BERLIN, GERMANY.
-COSYLAB (Control System Laboratory)
-    (Cosylab) Ljubljana Slovenia
-*************************************************** */
+COSYLAB (Control System Laboratory), Ljubljana, Slovenia.
+Brookhaven Science Associates, as Operator of Brookhaven
+    National Laboratory.
+Diamond Light Source Ltd., Didcot, United Kingdom.
+
+

LICENSE

@@ -1,12 +1,15 @@
 
-Copyright (c) 2008 Martin R. Kraimer
+Copyright (c) 2006-2015 Martin R. Kraimer
 Copyright (c) 2006 The University of Chicago, as Operator of Argonne
      National Laboratory.
 Copyright (c) 2006 Deutsches Elektronen-Synchrotron,
      Member of the Helmholtz Association, (DESY), HAMBURG, GERMANY.
-Copyright (c) 2007 Control System Laboratory,
+Copyright (c) 2007-2015 Control System Laboratory,
     (COSYLAB) Ljubljana Slovenia
-
+Copyright (c) 2010-2015 Brookhaven Science Associates, as Operator of Brookhaven
+    National Laboratory
+Copyright (c) 2011-2015 Diamond Light Source Limited,
+    (DLS) Didcot, United Kingdom
 
 Permission is hereby granted, free of charge, to any person
 obtaining a copy of this software and associated documentation
@@ -75,4 +78,37 @@ to, the implied warranties of merchantability, fitness for a particular
 purpose, and non-infringement.  This software is provided on an "as is"
 basis, and DESY has no obligation to provide maintenance, support,
 updates, enhancements, or modifications.
+
+______________________________________________________________________
+
+This software is in part copyrighted by the Brookhaven
+    National Laboratory (BNL).
+
+In no event shall BNL be liable to any party for direct, indirect,
+special, incidental, or consequential damages arising out of the use of
+this software, its documentation, or any derivatives thereof, even if
+BNL has been advised of the possibility of such damage.
+
+BNL specifically disclaims any warranties, including, but not limited
+to, the implied warranties of merchantability, fitness for a particular
+purpose, and non-infringement.  This software is provided on an "as is"
+basis, and BNL has no obligation to provide maintenance, support,
+updates, enhancements, or modifications.
+
 ________________________________________________________________________
+
+This software is in part copyrighted by Diamond Light Source Limited (DLS)
+
+In no event shall DLS be liable to any party for direct, indirect,
+special, incidental, or consequential damages arising out of the use of
+this software, its documentation, or any derivatives thereof, even if
+DLS has been advised of the possibility of such damage.
+
+DLS specifically disclaims any warranties, including, but not limited
+to, the implied warranties of merchantability, fitness for a particular
+purpose, and non-infringement.  This software is provided on an "as is"
+basis, and DLS has no obligation to provide maintenance, support,
+updates, enhancements, or modifications.
+
+________________________________________________________________________
+

README.html

@@ -1,82 +0,0 @@
-<?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 pvData C++</title>
-</head>
-
-<body>
-<h1 style="text-align: center">EPICS pvData C++<br />
-Overview<br />
-2010.08.10</h1>
-CONTENTS 
-<hr />
-
-<h2 style="text-align: center">Introduction</h2>
-<hr />
-
-<p>This project has the begining of the C++ implementation of pvData. The
-following is done:</p>
-<dl>
-  <dt>introspection interfaces</dt>
-    <dd>The introspection interfaces for clients are described.</dd>
-  <dt>introspection implementation</dt>
-    <dd>The following have been implemented: Type, ScalarType, Field,
-    Scalar</dd>
-  <dt>test</dt>
-    <dd>A test of Scalar.</dd>
-  <dt>As mentioned below there are problems with the current
-  implementation.</dt>
-</dl>
-<hr />
-
-<h2 style="text-align: center">Building</h2>
-<hr />
-
-<p>The project is structured as an epics base client application. Edit
-configure/RELEASE so that it references your EPICS base and then just
-type:</p>
-<pre>   make</pre>
-
-<p>At the top. Then execute the test in the bin directory.</p>
-
-<p>pvDataApp has the following sub directories:</p>
-<dl>
-  <dt>pv</dt>
-    <dd>pvData.h has the interface descriptions for client code.</dd>
-  <dt>factory</dt>
-    <dd>FieldCreateFactory.cpp has the current implementation</dd>
-  <dt>test</dt>
-    <dd>Has a test for the current implementation.</dd>
-</dl>
-<hr />
-
-<h2 style="text-align: center">Questions about Classes</h2>
-<hr />
-
-<p>The pure virtual classes defined in pvData.h now work. But there are still
-some things that are not so nice. Amoung these are:</p>
-<ul>
-  <li>In FieldCreateFactory.cpp look for "WHY DO I". It asks why the derived
-    class must also define methods defined in the base class. If it does not
-    then a compilation error occurs. WHY??? </li>
-  <li>The toString methods have an argument of "std::string &amp;buf" instead
-    of "std::string *". Does this seem correct?</li>
-  <li>Can arguments and return descriptions be defined better?</li>
-  <li>Is const present everywhere it should be? Remember that introspection
-    classes are immutable.</li>
-  <li>The code is NOT thread safe. When we decide for sure what thread/lock
-    support to choose I will fix this.</li>
-</ul>
-
-<p>HELP WILL BE GREATLY APPRECIATED. because I am still coming up to speed
-with c++</p>
-<hr />
-
-<h2 style="text-align: center">Garbage Collection</h2>
-<hr />
-<p>Not yet implemented. Lets get class structure correct first.</p>
-</body>
-</html>

README.md

@@ -0,0 +1,58 @@
+pvaDataCPP
+==========
+
+pvDataCPP is a set of data types and utilities that form part of the EPICS V4 
+project.
+
+
+Further Info
+------------
+
+Consult the documents in the documentation directory, in particular
+
+* pvDataCPP.html
+* RELEASE_NOTES.md
+
+Also see the [EPICS Version 4 website](http://epics-pvdata.sourceforge.net)
+
+Prerequisites
+-------------
+
+The pvDataCPP  requires recent versions of the following software:
+
+1. EPICS Base (v3.14.12.3 or later)
+2. EPICS4 pvCommonCPP (4.1.0 or later)
+
+(pvCommonCPP may not be needed depending on host/compiler.)
+
+
+Building
+--------
+
+Building uses the make utility and the EPICS base build system.
+
+The build system needs the location of the prerequisites, e.g. by placing the
+lines of the form
+
+    PVCOMMON = /home/install/epicsV4/pvCommonCPP
+    EPICS_BASE = /home/install/epics/base
+
+pointing to the locations in a file called RELEASE.local
+in the configure directory or the parent directory of pvDataCPP.
+
+With this in place, to build type make
+
+    make
+
+To perform a clean build type
+
+    make clean uninstall
+
+To run the unit tests type
+
+    make runtests
+
+For more information on the EPICS build system consult the
+[Application Development guide](http://www.aps.anl.gov/epics/base/R3-14/12-docs/AppDevGuide.pdf).
+
+

configure/CONFIG_SITE

@@ -20,8 +20,8 @@ CHECK_RELEASE = YES
 #   INSTALL_LOCATION here.
 #INSTALL_LOCATION=</path/name/to/install/top>
 
+-include $(TOP)/../CONFIG_SITE.local
 -include $(TOP)/configure/CONFIG_SITE.local
--include $(TOP)/../CONFIG.local
 
 ifdef WITH_COVERAGE
 USR_CPPFLAGS += --coverage

configure/RELEASE

@@ -21,5 +21,5 @@
 #   PVCOMMON = /home/install/epicsV4/pvCommonCPP
 #   EPICS_BASE = /home/install/epics/base
 
--include $(TOP)/configure/RELEASE.local
 -include $(TOP)/../RELEASE.local
+-include $(TOP)/configure/RELEASE.local

documentation/RELEASE_NOTES.html

@@ -1,5 +1,179 @@
-<h1>Release 4.0 IN DEVELOPMENT</h1>
+<h1>Release 5.0.4</h1>
+
+<p>The changes since release 5.0.3 are:</p>
+
+<ul>
+<li>Fixed bitset serialization (issue #24)</li>
+<li>Fixed truncation in BitSet::or_and (issue #27)</li>
+</ul>
+
+<h2>Fixed bitset serialization (issue #24)</h2>
+
+<p>C++ bitset serialization was not consistent with the C++ deserialization and
+Java code in some instances (depending on the endianness of the serializer and deserializer) when the number of bits was 56-63 modulo 64. C++ serialization
+has been fixed.</p>
+
+<p>Fix exposed issue in deserialization on 32-bit platforms which
+has also been corrected. </p>
+
+<h2>Fixed truncation in BitSet::or_and (issue #27)</h2>
+
+<p>If n, n1 and n2 words are used to store the values of the bitsets bitset,
+bitset1 and bitset2 respectively then max(n, min(n1,n2)) words are needed
+to store bitset.or_(bitset1, bitset2).</p>
+
+<p>Previously min(n1,n2) words were used and the result would be truncated in
+some instances. This has been fixed.</p>
+
+<h1>Release 5.0.3</h1>
+
+<p>The only change since release 5.0.2 is:</p>
+
+<h2>Fixed buffer overflow in PVUnion::serialize() (issue #20)</h2>
+
+<p>A PVUnion whose stored value was null was serialized without checking 
+whether the buffer had sufficient capacity. This has been fixed by calling
+ensureBuffer().</p>
+
+<h1>Release 5.0.2</h1>
+
+<p>The main changes since release 4.0.3 are:</p>
+
+<ul>
+<li>Deprecated getXXXField() methods have been removed from PVStructure</li>
+<li>Convert copy methods and equals operators (re)moved</li>
+<li>Convert::copyUnion now always copies between subfields.</li>
+<li>New method getSubFieldT, like getSubField except it throws an exception</li>
+<li>findSubField method removed from PVStructure</li>
+<li>New stream operators for Field and PVField are provided</li>
+<li>New template versions of Structure::getField</li>
+<li>Fixes for static initialisation order issues</li>
+<li>CreateRequest prevents a possible SEGFAULT</li>
+</ul>
+
+<h2>Deprecated getXXXField methods have been removed from PVStructure</h2>
+
+<p>The following methods have been removed from PVStructure</p>
+
+<ul>
+<li>getBooleanField</li>
+<li>getByteField, getShortField, getIntField, getLongField</li>
+<li>getUByteField, getUShortField, getUIntField, getULongField</li>
+<li>getStringField</li>
+<li>getStructureField, getUnionField</li>
+<li>getScalarArrayField, getStructureArrayField, getUnionArrayField</li>
+</ul>
+
+<p>Use template getSubField instead, e.g. use</p>
+
+<pre><code>getSubField&lt; PVInt &gt;(fieldName)
+</code></pre>
+
+<p>in place of</p>
+
+<pre><code>getIntField(fieldName)
+</code></pre>
+
+<h2>Convert copy methods and equals operators</h2>
+
+<p>Convert copy methods where moved and replaced with methods
+on PVField classes, i.e.</p>
+
+<pre><code>PVField::copy(const PVField&amp; from)
+</code></pre>
+
+<p>Methods</p>
+
+<pre><code>PVField::copyUnchecked(const PVField&amp; from)
+</code></pre>
+
+<p>were added to allow unchecked copies, to gain performance
+where checked are not needed (anymore).</p>
+
+<p>In addition:
+- isCompatibleXXX methods were removed in favour of Field::operator==.
+- equals methods were remove in favour of PVField::operator==.
+- operator== methods where moved to pvIntrospect.h and pvData.h</p>
+
+<h2>Convert::copyUnion</h2>
+
+<p>Before this method, depending on types for to and from,
+sometimes did a shallow copy, i.e. just made to shared_ptr for to 
+share the same data as from.
+Now it always copies between the subfield of to and from.</p>
+
+<h2>New method getSubFieldT, like getSubField except it throws an exception</h2>
+
+<p>PVStructure has a new template member</p>
+
+<pre><code>getSubFieldT(std::string const &amp;fieldName)
+</code></pre>
+
+<p>that is like <b>getSubField</b> except that it throws a runtime_error
+instead of returning null.</p>
+
+<h2>findSubField method removed from PVStructure</h2>
+
+<p>This was mainly used in the implementation of getSubField. With a change to
+the latter, findSubField was removed.</p>
+
+<h2>New stream operators</h2>
+
+<p>New steam operators are available for Field and PVField.
+Before to print a Field (or any extension) or a PVField (or any extension)
+it was necessary to have code like:</p>
+
+<pre><code> void print(StructureConstPtr struc, PVStructurePtr pv)
+ {
+     if(struc) {
+         cout &lt;&lt; *struc &lt;&lt; endl;
+     } else {
+         cout &lt;&lt; "nullptr\n"
+     }
+     if(pv) {
+         cout &lt;&lt; *.struc &lt;&lt; endl;
+     } else {
+         cout &lt;&lt; "nullptr\n"
+     }
+ }
+</code></pre>
+
+<p>Now it can be done as follows:</p>
+
+<pre><code> void print(StructureConstPtr struc, PVStructurePtr pv)
+ {
+     cout &lt;&lt; struc &lt;&lt; endl;
+     cout &lt;&lt; pv &lt;&lt; endl;
+ }
+</code></pre>
+
+<h2>New template version of Structure::getField</h2>
+
+<p>A new template getField method has been added to Structure</p>
+
+<p>template<typename FT >
+std::tr1::shared_ptr&lt; const FT > getField(std::string const &amp;fieldName) const </p>
+
+<p>Can be used, for example, as follows:</p>
+
+<pre><code>StructurePtr tsStruc = struc-&gt;getField&lt;Structure&gt;("timeStamp");
+</code></pre>
+
+<h2>Fixes for static initialisation order issues</h2>
+
+<p>Certain static builds (in particular Windows builds) of applications using
+pvData had issues due to PVStructure::DEFAULT_ID being used before being initialised. This has been fixed.</p>
+
+<h2>CreateRequest change</h2>
+
+<p>createRequest could cause a SEGFAULT if passed a bad argument.
+This has been changed so the it returns a null pvStructure
+and provides an error.</p>
+
+<h1>Release 4.0.3</h1>
+
 <p>The main changes since release 3.0.2 are:</p>
+
 <ul>
 <li>array semantics now enforce Copy On Write.</li>
 <li>String no longer defined.</li>
@@ -9,21 +183,31 @@
 <li>copy is new.</li>
 <li>monitorPlugin is new.</li>
 </ul>
+
 <h2>New Semantics for Arrays</h2>
+
 <p>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.
+In order to limit memory usage the storage for raw data is managed via a new shared<em>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.</p>
+COW is implemented via shared</em>vectors of const data, i. e. data that can not be modified.</p>
+
 <h2>String no longer defined</h2>
+
 <p>This is replaced by std::string.</p>
+
 <h2>timeStamp and valueAlarm name changes</h2>
+
 <p>In timeStamp nanoSeconds is changed to nanoseconds.</p>
-<p>In valueAlarm hystersis is changed to hysteresis</p>
+
+<p>In valueAlarm hysteresis is changed to hysteresis</p>
+
 <h2>toString replaced by stream I/O</h2>
+
 <p>pvData.h and pvIntrospect no longer defines toString
 Instead they have stream support.
 pvIntrospect uses method dump and pvData uses dumpValue.
 For example:</p>
+
 <pre><code>  PVDoublePtr pvValue;
   String buffer;
   pvValue-&gt;toString(&amp;buffer);
@@ -32,27 +216,40 @@ For example:</p>
   pvValue-&gt;getField()-&gt;toString(&amp;buffer);
   cout &lt;&lt; buffer &lt;&lt; evdl;
 </code></pre>
+
 <p>is replaced by</p>
+
 <pre><code>  PVDoublePtr pvValue;
   cout &lt;&lt; *pvValue &lt;&lt; endl
   cout &lt;&lt; *pvValue-&gt;getField() &lt;&lt; endl;
 </code></pre>
+
 <h2>union is a new basic type.</h2>
+
 <p>There are two new basic types: union_t and unionArray.</p>
+
 <p>A union is like a structure that has a single subfield.
 There are two flavors:</p>
+
 <ul>
-<li><b>varient union</b> The field can have any type.</li>
+<li><b>variant union</b> The field can have any type.</li>
 <li><b>union</b> The field can any of specified set of types.</li>
 </ul>
+
 <p>The field type can be dynamically changed.</p>
-<h2>copy</h2>
+
+<h2>copy </h2>
+
 <p>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.</p>
+only on pvData, i.e. it no longer has any knowledge of PVRecord.</p>
+
 <h2>monitorPlugin</h2>
+
 <p>This is for is for use by code that implements pvAccess monitors.
 This is prototype and is subject to debate.</p>
+
 <h1>Release 3.0.2</h1>
+
 <p>This was the starting point for RELEASE_NOTES</p>

documentation/RELEASE_NOTES.md

@@ -1,5 +1,191 @@
-Release 4.0 IN DEVELOPMENT
-===========
+Release 5.0.4
+=============
+
+The changes since release 5.0.3 are:
+
+* Fixed bitset serialization (issue #24)
+* Fixed truncation in BitSet::or_and (issue #27)
+
+Fixed bitset serialization (issue #24)
+--------------------------------------
+
+C++ bitset serialization was not consistent with the C++ deserialization and
+Java code in some instances (depending on the endianness of the serializer and
+deserializer) when the number of bits was 56-63 modulo 64. C++ serialization
+has been fixed.
+
+Fix exposed issue in deserialization on 32-bit platforms which
+has also been corrected. 
+
+Fixed truncation in BitSet::or_and (issue #27)
+----------------------------------------------
+
+If n, n1 and n2 words are used to store the values of the bitsets bitset,
+bitset1 and bitset2 respectively then max(n, min(n1,n2)) words are needed
+to store bitset.or_(bitset1, bitset2).
+
+Previously min(n1,n2) words were used and the result would be truncated in
+some instances. This has been fixed.
+
+
+Release 5.0.3
+=============
+
+The only change since release 5.0.2 is:
+
+Fixed buffer overflow in PVUnion::serialize() (issue #20)
+---------------------------------------------------------
+
+A PVUnion whose stored value was null was serialized without checking 
+whether the buffer had sufficient capacity. This has been fixed by calling
+ensureBuffer().
+
+
+Release 5.0.2
+=============
+
+The main changes since release 4.0.3 are:
+
+* Deprecated getXXXField() methods have been removed from PVStructure
+* Convert copy methods and equals operators (re)moved
+* Convert::copyUnion now always copies between subfields.
+* New method getSubFieldT, like getSubField except it throws an exception
+* findSubField method removed from PVStructure
+* New stream operators for Field and PVField are provided
+* New template versions of Structure::getField
+* Fixes for static initialisation order issues
+* CreateRequest prevents a possible SEGFAULT
+
+
+Deprecated getXXXField methods have been removed from PVStructure
+-----------------------------------------------------------------
+
+The following methods have been removed from PVStructure
+
+* getBooleanField
+* getByteField, getShortField, getIntField, getLongField
+* getUByteField, getUShortField, getUIntField, getULongField
+* getStringField
+* getStructureField, getUnionField
+* getScalarArrayField, getStructureArrayField, getUnionArrayField
+
+Use template getSubField instead, e.g. use
+
+    getSubField< PVInt >(fieldName)
+
+in place of
+
+    getIntField(fieldName)
+
+
+Convert copy methods and equals operators
+-----------------------------------------
+
+Convert copy methods where moved and replaced with methods
+on PVField classes, i.e.
+
+    PVField::copy(const PVField& from)
+
+Methods
+
+    PVField::copyUnchecked(const PVField& from)
+
+were added to allow unchecked copies, to gain performance
+where checked are not needed (anymore).
+
+In addition:
+- isCompatibleXXX methods were removed in favour of Field::operator==.
+- equals methods were remove in favour of PVField::operator==.
+- operator== methods where moved to pvIntrospect.h and pvData.h
+
+
+Convert::copyUnion
+-----------------
+
+Before this method, depending on types for to and from,
+sometimes did a shallow copy, i.e. just made to shared_ptr for to 
+share the same data as from.
+Now it always copies between the subfield of to and from.
+
+
+New method getSubFieldT, like getSubField except it throws an exception
+--------------------
+
+PVStructure has a new template member
+
+    getSubFieldT(std::string const &fieldName)
+
+that is like <b>getSubField</b> except that it throws a runtime_error
+instead of returning null.
+
+
+findSubField method removed from PVStructure
+--------------------------------------------
+
+This was mainly used in the implementation of getSubField. With a change to
+the latter, findSubField was removed.
+
+
+New stream operators
+--------------------
+
+New steam operators are available for Field and PVField.
+Before to print a Field (or any extension) or a PVField (or any extension)
+it was necessary to have code like:
+
+     void print(StructureConstPtr struc, PVStructurePtr pv)
+     {
+         if(struc) {
+             cout << *struc << endl;
+         } else {
+             cout << "nullptr\n"
+         }
+         if(pv) {
+             cout << *.struc << endl;
+         } else {
+             cout << "nullptr\n"
+         }
+     }
+
+Now it can be done as follows:
+
+     void print(StructureConstPtr struc, PVStructurePtr pv)
+     {
+         cout << struc << endl;
+         cout << pv << endl;
+     }
+
+
+New template version of Structure::getField
+--------------------------------------------
+
+A new template getField method has been added to Structure
+
+template<typename FT >
+std::tr1::shared_ptr< const FT > getField(std::string const &fieldName) const 
+
+Can be used, for example, as follows:
+
+    StructurePtr tsStruc = struc->getField<Structure>("timeStamp");
+
+
+Fixes for static initialisation order issues
+--------------------------------------------
+
+Certain static builds (in particular Windows builds) of applications using
+pvData had issues due to PVStructure::DEFAULT_ID being used before being initialised. This has been fixed.
+
+
+CreateRequest change
+--------------------
+
+createRequest could cause a SEGFAULT if passed a bad argument.
+This has been changed so the it returns a null pvStructure
+and provides an error.
+
+
+Release 4.0.3
+=============
 
 The main changes since release 3.0.2 are:
 
@@ -31,7 +217,7 @@ timeStamp and valueAlarm name changes
 
 In timeStamp nanoSeconds is changed to nanoseconds.
 
-In valueAlarm hystersis is changed to hysteresis
+In valueAlarm hysteresis is changed to hysteresis
 
 
 toString replaced by stream I/O
@@ -65,7 +251,7 @@ 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>variant 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.
@@ -76,7 +262,7 @@ 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.
+only on pvData, i.e. it no longer has any knowledge of PVRecord.
 
 monitorPlugin
 -------------

documentation/TODO.html

@@ -1,17 +0,0 @@
-<h1>TODO</h1>
-<h2>printer</h2>
-<p>pv/printer.h is not used.</p>
-<h2>doxygen</h2>
-<p>There is a lot of public code that does not have doxygen tags.</p>
-<h2>postMonitor: PVUnion, PVUnionArray, and PVStructureArray</h2>
-<p>PVUnion, PVUnionArray, and PVStructureArray all have elements
-that are treated like a top level field.</p>
-<p>Currently if a subField of any of these is changed postMonitor is not called for the field itself.</p>
-<p>David asked if this could be changed so that it is called.
-Marty thinks this may not be a good idea.</p>
-<h2>valueAlarm</h2>
-<p>normativeTypes.html describes valueAlarm only for a value field that has type
-double.
-The implementation also supports all the numeric scalar types.</p>
-<h2>monitorPlugin</h2>
-<p>A debate is on-going about what semantics should be.</p>

documentation/TODO.md

@@ -1,29 +1,11 @@
 TODO
 ===========
 
-printer
-------------
-
-pv/printer.h is not used.
-
 doxygen
 -------
 
 There is a lot of public code that does not have doxygen tags.
 
-
-postMonitor: PVUnion, PVUnionArray, and PVStructureArray
---------
-
-PVUnion, PVUnionArray, and PVStructureArray all have elements
-that are treated like a top level field.
-
-Currently if a subField of any of these is changed postMonitor is not called for the field itself.
-
-David asked if this could be changed so that it is called.
-Marty thinks this may not be a good idea.
-
-
 valueAlarm
 ---------
 

documentation/pvDataCPP.html

@@ -37,7 +37,7 @@
 <h1>EPICS pvDataCPP</h1>
 <!-- Maturity: Working Draft or Request for Comments, or Recommendation, and date.  -->
 
-<h2 class="nocount">EPICS v4 Working Group, Working Draft, 10-Nov-2014</h2>
+<h2 class="nocount">EPICS v4 Working Group, Working Draft, 23-June-2015</h2>
 
   <dl>
     <dt>Latest version:</dt>
@@ -46,11 +46,11 @@
     </dd>
     <dt>This version:</dt>
     <dd><a
-      href="pvDataCPP_20141110.html">pvDataCPP_20141110.html</a>
+      href="pvDataCPP_20150623.html">pvDataCPP_20150623.html</a>
     </dd>
     <dt>Previous version:</dt>
     <dd><a
-      href="pvDataCPP_20140723.html">pvDataCPP_20140723.html</a>
+      href="pvDataCPP_20141110.html">pvDataCPP_20141110.html</a>
     </dd>
     <dt>Editors:</dt>
     <dd>Marty Kraimer, BNL</dd>
@@ -79,7 +79,7 @@ V4 control system programming environment:<br />
 
 <h2 class="nocount">Status of this Document</h2>
 
-<p>This is the 10-Nov-2014 version of the C++ implementation of pvData.
+<p>This is the 23-June-2015 version of the C++ implementation of pvData.
 </p>
 
 <p>RELEASE_NOTES.md provides changes since the last release.
@@ -2309,6 +2309,16 @@ public:
     template&lt;typename PVT&gt;
     std::tr1::shared_ptr&lt;PVT&gt; getSubField(std::size_t fieldOffset) const
 
+    PVFieldPtr getSubFieldT(std::string const &amp;fieldName) const;
+
+    template&lt;typename PVT&gt;
+    std::tr1::shared_ptr&lt;PVT&gt; getSubFieldT(std::string const &amp;fieldName) const
+
+    PVFieldPtr getSubFieldT(std::size_t fieldOffset) const;
+
+    template&lt;typename PVT&gt;
+    std::tr1::shared_ptr&lt;PVT&gt; getSubFieldT(std::size_t fieldOffset) const
+
     virtual void serialize(
         ByteBuffer *pbuffer,SerializableControl *pflusher) const ;
     virtual void deserialize(
@@ -2329,7 +2339,7 @@ public:
   <dt>getPVFields</dt>
     <dd>Returns the array of subfields. The set of subfields must all have
       different field names.</dd>
-  <dt>getSubField(std::string fieldName)</dt>
+  <dt>getSubField(std::string const &amp;fieldName)</dt>
     <dd>
       Get a subField of a field.d
       A non-null result is
@@ -2344,9 +2354,13 @@ public:
     <dd>Get the field located a fieldOffset, where fieldOffset is relative to
       the top level structure. This returns null if the specified field is not
       located within this PVStructure.
-      <br />
-      <b>Note</b> The template version replaces getBooleanField, etc.<br/>
     </dd>
+  <dt>getSubFieldT(std::string const &amp;fieldName)</dt>
+     <dd>Like getSubField except that it throws std::runtime_error if
+       the field does not exists or has the wrong type.</dd>
+  <dt>getSubFieldT(int fieldOffset)</dt>
+    <dd>Like getSubField except that it throws std::runtime_error if
+       the field does not exists or has the wrong type.</dd>
   <dt>dumpValue</dt>
      <dd>Method for streams I/O.</dd>
 </dl>
@@ -2662,12 +2676,6 @@ objects:</p>
 </dl>
 <h3>convert.h</h3>
 
-<p>NOTE about copying immutable array fields. If an entire immutable array
-field is copied to another array that has the same elementType, both offsets
-are 0, and the length is the length of the source array, then the shareData
-method of the target array is called and the target array is set immutable.
-Thus the source and target share the same primitive array.</p>
-
 <p>This section describes the supported conversions between data types.</p>
 <ul>
   <li>All supported types can be converted to a string. If you ask for a 100
@@ -2681,12 +2689,6 @@ Thus the source and target share the same primitive array.</p>
       <li>Either is a string</li>
     </ul>
   </li>
-  <li>Copy between PVArrays that satisfy one of the following. 
-    <ul>
-      <li>Both have the same type.</li>
-      <li>Either is a string.</li>
-    </ul>
-  </li>
   <li>Conversions between numeric scalar types.</li>
   <li>Conversion between compatible structures.</li>
   <li>A utility method the returns the full field name of a field</li>

jenkins/cloudbees_build

@@ -4,10 +4,19 @@
 # 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>
+# Author: Ralph Lange <ralph.lange@gmx.de>
 # Copyright (C) 2013 Helmholtz-Zentrum Berlin für Materialien und Energie GmbH
+# Copyright (C) 2014-2015 ITER Organization.
 # All rights reserved. Use is subject to license terms.
 
+###########################################
+# Determine EPICS Base version
+
+DEFAULT_BASE=3.14.12.5
+
+BASE=${1:-${DEFAULT_BASE}}
+USE_MB=${2:-"MB_NO"}
+
 ###########################################
 # Fetch and unpack dependencies
 
@@ -17,10 +26,8 @@ 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
+wget -nv https://openepics.ci.cloudbees.com/job/Base-${BASE}_Build/lastSuccessfulBuild/artifact/base-${BASE}.CB-dist.tar.gz
+tar -xzf base-${BASE}.CB-dist.tar.gz
 
 ###########################################
 # Build
@@ -37,20 +44,13 @@ 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_doc

@@ -0,0 +1,51 @@
+# pvData C++ implementation
+# Jenkins @ Cloudbees documentation generation and deployment
+#
+# 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
+# Copyright (C) 2014-2015 ITER Organization.
+# All rights reserved. Use is subject to license terms.
+
+###########################################
+# Set EPICS Base version and upload target
+
+BASE=3.15.2
+PUBLISH=${1:-DONT}
+
+###########################################
+# Fetch and unpack dependencies
+
+export STUFF=/tmp/stuff
+
+rm -fr ${STUFF}
+mkdir -p ${STUFF}
+cd ${STUFF}
+
+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 doxygen-1.8.3.CB-dist.tar.gz
+
+###########################################
+# Generate
+
+cd ${WORKSPACE}
+
+wget -nv https://openepics.ci.cloudbees.com/job/pvDataCPP_Build/BASE=${BASE},USE_MB=MB_NO/lastSuccessfulBuild/artifact/pvData.CB-dist.tar.gz
+tar -xzf pvData.CB-dist.tar.gz
+
+export PATH=${STUFF}/bin:${PATH}
+
+doxygen
+
+###########################################
+# Publish
+
+if [ "${PUBLISH}" != "DONT" ]; then
+    # Upload explicit dummy to ensure target directory exists
+    echo "Created by CloudBees Jenkins upload job. Should be deleted as part of the job." > DUMMY
+    rsync -q -e ssh DUMMY epics-jenkins@web.sourceforge.net:/home/project-web/epics-pvdata/htdocs/docbuild/pvDataCPP/${PUBLISH}/
+
+    rsync -aqP --delete -e ssh documentation epics-jenkins@web.sourceforge.net:/home/project-web/epics-pvdata/htdocs/docbuild/pvDataCPP/${PUBLISH}/
+fi

jenkins/cloudbees_hgweb

@@ -1,20 +0,0 @@
-# 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

pvDataCPP.config

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

pvDataCPP.creator

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

pvDataCPP.files

@@ -1,491 +0,0 @@
-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/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/pvData.h
-pvDataApp/pv/pvIntrospect.h
-pvDataApp/pv/pvType.h
-pvDataApp/pv/standardField.h
-pvDataApp/pv/standardPVField.h
-pvDataApp/pvMisc/bitSetUtil.cpp
-pvDataApp/pvMisc/bitSetUtil.h
-testApp/capi/testc.cpp
-testApp/capi/testc.py
-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/testMonitor.cpp
-testApp/property/testProperty.cpp
-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
-src/copy/createRequest.cpp
-src/copy/createRequest.h
-src/copy/pvCopy.cpp
-src/copy/pvCopy.h
-src/factory/Compare.cpp
-src/factory/Convert.cpp
-src/factory/factory.h
-src/factory/FieldCreateFactory.cpp
-src/factory/printer.cpp
-src/factory/PVArray.cpp
-src/factory/PVDataCreateFactory.cpp
-src/factory/PVField.cpp
-src/factory/PVScalar.cpp
-src/factory/PVScalarArray.cpp
-src/factory/PVStructure.cpp
-src/factory/PVStructureArray.cpp
-src/factory/pvSubArrayCopy.cpp
-src/factory/PVUnion.cpp
-src/factory/PVUnionArray.cpp
-src/factory/StandardField.cpp
-src/factory/StandardPVField.cpp
-src/factory/TypeFunc.cpp
-src/misc/bitSet.cpp
-src/misc/bitSet.h
-src/misc/byteBuffer.cpp
-src/misc/byteBuffer.h
-src/misc/current_function.h
-src/misc/destroyable.h
-src/misc/epicsException.cpp
-src/misc/epicsException.h
-src/misc/event.cpp
-src/misc/event.h
-src/misc/executor.cpp
-src/misc/executor.h
-src/misc/localStaticLock.cpp
-src/misc/localStaticLock.h
-src/misc/lock.h
-src/misc/messageQueue.cpp
-src/misc/messageQueue.h
-src/misc/noDefaultMethods.h
-src/misc/parseToPOD.cpp
-src/misc/queue.h
-src/misc/requester.cpp
-src/misc/requester.h
-src/misc/serialize.h
-src/misc/serializeHelper.cpp
-src/misc/serializeHelper.h
-src/misc/sharedPtr.h
-src/misc/sharedVector.h
-src/misc/status.cpp
-src/misc/status.h
-src/misc/templateMeta.h
-src/misc/thread.h
-src/misc/timeFunction.cpp
-src/misc/timeFunction.h
-src/misc/timer.cpp
-src/misc/timer.h
-src/misc/typeCast.cpp
-src/misc/typeCast.h
-src/monitor/monitor.cpp
-src/monitor/monitor.h
-src/monitor/monitorPlugin.cpp
-src/monitor/monitorPlugin.h
-src/property/alarm.cpp
-src/property/alarm.h
-src/property/control.h
-src/property/display.h
-src/property/pvAlarm.cpp
-src/property/pvAlarm.h
-src/property/pvControl.cpp
-src/property/pvControl.h
-src/property/pvDisplay.cpp
-src/property/pvDisplay.h
-src/property/pvEnumerated.cpp
-src/property/pvEnumerated.h
-src/property/pvTimeStamp.cpp
-src/property/pvTimeStamp.h
-src/property/timeStamp.cpp
-src/property/timeStamp.h
-src/pv/convert.h
-src/pv/printer.h
-src/pv/pvData.h
-src/pv/pvIntrospect.h
-src/pv/pvSubArrayCopy.h
-src/pv/pvType.h
-src/pv/standardField.h
-src/pv/standardPVField.h
-src/pvMisc/bitSetUtil.cpp
-src/pvMisc/bitSetUtil.h
-testApp/copy/testCreateRequest.cpp
-testApp/copy/testPVCopy.cpp
-testApp/misc/testBaseException.cpp
-testApp/misc/testBitSet.cpp
-testApp/misc/testByteBuffer.cpp
-testApp/misc/testByteOrder.cpp
-testApp/misc/testMessageQueue.cpp
-testApp/misc/testOverrunBitSet.cpp
-testApp/misc/testQueue.cpp
-testApp/misc/testSerialization.cpp
-testApp/misc/testSharedVector.cpp
-testApp/misc/testThread.cpp
-testApp/misc/testTimer.cpp
-testApp/misc/testTimeStamp.cpp
-testApp/misc/testTypeCast.cpp
-testApp/property/testProperty.cpp
-testApp/pv/testBitSetUtil.cpp
-testApp/pv/testConvert.cpp
-testApp/pv/testFieldBuilder.cpp
-testApp/pv/testIntrospect.cpp
-testApp/pv/testOperators.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
-src/factory/printer.cpp
-configure/O.darwin-x86/Makefile
-configure/Makefile
-include/pv/alarm.h
-include/pv/bitSet.h
-include/pv/bitSetUtil.h
-include/pv/byteBuffer.h
-include/pv/control.h
-include/pv/convert.h
-include/pv/createRequest.h
-include/pv/current_function.h
-include/pv/destroyable.h
-include/pv/display.h
-include/pv/epicsException.h
-include/pv/event.h
-include/pv/executor.h
-include/pv/factory.h
-include/pv/localStaticLock.h
-include/pv/lock.h
-include/pv/messageQueue.h
-include/pv/monitor.h
-include/pv/monitorPlugin.h
-include/pv/noDefaultMethods.h
-include/pv/printer.h
-include/pv/pvAlarm.h
-include/pv/pvControl.h
-include/pv/pvCopy.h
-include/pv/pvData.h
-include/pv/pvDisplay.h
-include/pv/pvEnumerated.h
-include/pv/pvIntrospect.h
-include/pv/pvSubArrayCopy.h
-include/pv/pvTimeStamp.h
-include/pv/pvType.h
-include/pv/queue.h
-include/pv/requester.h
-include/pv/serialize.h
-include/pv/serializeHelper.h
-include/pv/sharedPtr.h
-include/pv/sharedVector.h
-include/pv/standardField.h
-include/pv/standardPVField.h
-include/pv/status.h
-include/pv/templateMeta.h
-include/pv/thread.h
-include/pv/timeFunction.h
-include/pv/timer.h
-include/pv/timeStamp.h
-include/pv/typeCast.h
-src/copy/createRequest.cpp
-src/copy/createRequest.h
-src/copy/Makefile
-src/copy/pvCopy.cpp
-src/copy/pvCopy.h
-src/factory/Compare.cpp
-src/factory/Convert.cpp
-src/factory/factory.h
-src/factory/FieldCreateFactory.cpp
-src/factory/Makefile
-src/factory/printer.cpp
-src/factory/PVArray.cpp
-src/factory/PVDataCreateFactory.cpp
-src/factory/PVField.cpp
-src/factory/PVScalar.cpp
-src/factory/PVScalarArray.cpp
-src/factory/PVStructure.cpp
-src/factory/PVStructureArray.cpp
-src/factory/pvSubArrayCopy.cpp
-src/factory/PVUnion.cpp
-src/factory/PVUnionArray.cpp
-src/factory/StandardField.cpp
-src/factory/StandardPVField.cpp
-src/factory/TypeFunc.cpp
-src/misc/bitSet.cpp
-src/misc/bitSet.h
-src/misc/byteBuffer.cpp
-src/misc/byteBuffer.h
-src/misc/current_function.h
-src/misc/destroyable.h
-src/misc/epicsException.cpp
-src/misc/epicsException.h
-src/misc/event.cpp
-src/misc/event.h
-src/misc/executor.cpp
-src/misc/executor.h
-src/misc/localStaticLock.cpp
-src/misc/localStaticLock.h
-src/misc/lock.h
-src/misc/Makefile
-src/misc/messageQueue.cpp
-src/misc/messageQueue.h
-src/misc/noDefaultMethods.h
-src/misc/parseToPOD.cpp
-src/misc/queue.h
-src/misc/requester.cpp
-src/misc/requester.h
-src/misc/serialize.h
-src/misc/serializeHelper.cpp
-src/misc/serializeHelper.h
-src/misc/sharedPtr.h
-src/misc/sharedVector.h
-src/misc/status.cpp
-src/misc/status.h
-src/misc/templateMeta.h
-src/misc/thread.h
-src/misc/timeFunction.cpp
-src/misc/timeFunction.h
-src/misc/timer.cpp
-src/misc/timer.h
-src/misc/typeCast.cpp
-src/misc/typeCast.h
-src/monitor/Makefile
-src/monitor/monitor.cpp
-src/monitor/monitor.h
-src/monitor/monitorPlugin.cpp
-src/monitor/monitorPlugin.h
-src/O.darwin-x86/Makefile
-src/property/alarm.cpp
-src/property/alarm.h
-src/property/control.h
-src/property/display.h
-src/property/Makefile
-src/property/pvAlarm.cpp
-src/property/pvAlarm.h
-src/property/pvControl.cpp
-src/property/pvControl.h
-src/property/pvDisplay.cpp
-src/property/pvDisplay.h
-src/property/pvEnumerated.cpp
-src/property/pvEnumerated.h
-src/property/pvTimeStamp.cpp
-src/property/pvTimeStamp.h
-src/property/timeStamp.cpp
-src/property/timeStamp.h
-src/pv/convert.h
-src/pv/Makefile
-src/pv/printer.h
-src/pv/pvData.h
-src/pv/pvIntrospect.h
-src/pv/pvSubArrayCopy.h
-src/pv/pvType.h
-src/pv/standardField.h
-src/pv/standardPVField.h
-src/pvMisc/bitSetUtil.cpp
-src/pvMisc/bitSetUtil.h
-src/pvMisc/Makefile
-src/Makefile
-testApp/copy/epicsRunPVDataTests.c
-testApp/copy/Makefile
-testApp/copy/testCreateRequest.cpp
-testApp/copy/testPVCopy.cpp
-testApp/misc/epicsRunPVDataTests.c
-testApp/misc/Makefile
-testApp/misc/testBaseException.cpp
-testApp/misc/testBitSet.cpp
-testApp/misc/testByteBuffer.cpp
-testApp/misc/testByteOrder.cpp
-testApp/misc/testMessageQueue.cpp
-testApp/misc/testOverrunBitSet.cpp
-testApp/misc/testQueue.cpp
-testApp/misc/testSerialization.cpp
-testApp/misc/testSharedVector.cpp
-testApp/misc/testThread.cpp
-testApp/misc/testTimer.cpp
-testApp/misc/testTimeStamp.cpp
-testApp/misc/testTypeCast.cpp
-testApp/property/epicsRunPVDataTests.c
-testApp/property/Makefile
-testApp/property/testProperty.cpp
-testApp/pv/epicsRunPVDataTests.c
-testApp/pv/Makefile
-testApp/pv/testBitSetUtil.cpp
-testApp/pv/testConvert.cpp
-testApp/pv/testFieldBuilder.cpp
-testApp/pv/testIntrospect.cpp
-testApp/pv/testOperators.cpp
-testApp/pv/testPVData.cpp
-testApp/pv/testPVScalarArray.cpp
-testApp/pv/testPVStructureArray.cpp
-testApp/pv/testPVType.cpp
-testApp/pv/testPVUnion.cpp
-testApp/pv/testStandardField.cpp
-testApp/pv/testStandardPVField.cpp
-testApp/Makefile
-Makefile
-testApp/copy/epicsRunPVDataTests.c
-testApp/copy/Makefile
-testApp/copy/testCreateRequest.cpp
-testApp/copy/testPVCopy.cpp
-testApp/misc/epicsRunPVDataTests.c
-testApp/misc/Makefile
-testApp/misc/testBaseException.cpp
-testApp/misc/testBitSet.cpp
-testApp/misc/testByteBuffer.cpp
-testApp/misc/testByteOrder.cpp
-testApp/misc/testMessageQueue.cpp
-testApp/misc/testOverrunBitSet.cpp
-testApp/misc/testQueue.cpp
-testApp/misc/testSerialization.cpp
-testApp/misc/testSharedVector.cpp
-testApp/misc/testThread.cpp
-testApp/misc/testTimer.cpp
-testApp/misc/testTimeStamp.cpp
-testApp/misc/testTypeCast.cpp
-testApp/O.darwin-x86/Makefile
-testApp/property/epicsRunPVDataTests.c
-testApp/property/Makefile
-testApp/property/testProperty.cpp
-testApp/pv/epicsRunPVDataTests.c
-testApp/pv/Makefile
-testApp/pv/testBitSetUtil.cpp
-testApp/pv/testConvert.cpp
-testApp/pv/testFieldBuilder.cpp
-testApp/pv/testIntrospect.cpp
-testApp/pv/testOperators.cpp
-testApp/pv/testPVData.cpp
-testApp/pv/testPVScalarArray.cpp
-testApp/pv/testPVStructureArray.cpp
-testApp/pv/testPVType.cpp
-testApp/pv/testPVUnion.cpp
-testApp/pv/testStandardField.cpp
-testApp/pv/testStandardPVField.cpp
-testApp/Makefile
-testApp/pvDataAllTests.c
-testApp/copy/testCreateRequest.cpp
-testApp/copy/testPVCopy.cpp
-testApp/misc/testBaseException.cpp
-testApp/misc/testBitSet.cpp
-testApp/misc/testByteBuffer.cpp
-testApp/misc/testByteOrder.cpp
-testApp/misc/testMessageQueue.cpp
-testApp/misc/testOverrunBitSet.cpp
-testApp/misc/testQueue.cpp
-testApp/misc/testSerialization.cpp
-testApp/misc/testSharedVector.cpp
-testApp/misc/testThread.cpp
-testApp/misc/testTimer.cpp
-testApp/misc/testTimeStamp.cpp
-testApp/misc/testTypeCast.cpp
-testApp/property/testProperty.cpp
-testApp/pv/testBitSetUtil.cpp
-testApp/pv/testConvert.cpp
-testApp/pv/testFieldBuilder.cpp
-testApp/pv/testIntrospect.cpp
-testApp/pv/testOperators.cpp
-testApp/pv/testPVData.cpp
-testApp/pv/testPVScalarArray.cpp
-testApp/pv/testPVStructureArray.cpp
-testApp/pv/testPVType.cpp
-testApp/pv/testPVUnion.cpp
-testApp/pv/testStandardField.cpp
-testApp/pv/testStandardPVField.cpp
-testApp/pvDataAllTests.c
-testApp/rtemsConfig.c
-testApp/rtemsNetworking.h
-testApp/rtemsTestHarness.c

pvDataCPP.includes

@@ -1,11 +0,0 @@
-/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
-testApp/pv
-testApp/copy
-testApp/misc
-testApp
-testApp/property

src/copy/createRequest.cpp

@@ -322,149 +322,157 @@ public:
     virtual PVStructurePtr createRequest(
         string const & crequest)
     {
-    	string request = crequest;
-        if (!request.empty()) removeBlanks(request);
-        if (request.empty())
-        {
-            return pvDataCreate->createPVStructure(fieldCreate->createStructure());
-        }
-        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(" + request + ")";
-             offsetField = request.find("field(");
-        }
-        int numParan = 0;
-        int numBrace = 0;
-        int numBracket = 0;
-        for(size_t i=0; i< request.length() ; ++i) {
-            char chr = request[i];
-            if(chr=='(') numParan++;
-            if(chr==')') numParan--;
-            if(chr=='{') numBrace++;
-            if(chr=='}') numBrace--;
-            if(chr=='[') numBracket++;
-            if(chr==']') numBracket--;
-        }
-        if(numParan!=0) {
-            ostringstream oss;
-            oss << "mismatched () " << numParan;
-            message = oss.str();
-            return PVStructurePtr();
-        }
-        if(numBrace!=0) {
-            ostringstream oss;
-            oss << "mismatched {} " << numBrace;
-            message = oss.str();
-            return PVStructurePtr();
-        }
-        if(numBracket!=0) {
-            ostringstream oss;
-            oss << "mismatched [] " << numBracket;
-            message = oss.str();
-            return PVStructurePtr();
-        }
-        vector<Node> top;
         try {
-            if(offsetRecord!=string::npos) {
-                fullFieldName = "record";
-                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();
+            string request = crequest;
+            if (!request.empty()) removeBlanks(request);
+            if (request.empty())
+            {
+                return pvDataCreate->createPVStructure(fieldCreate->createStructure());
+            }
+            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(" + request + ")";
+                 offsetField = request.find("field(");
+            }
+            int numParan = 0;
+            int numBrace = 0;
+            int numBracket = 0;
+            for(size_t i=0; i< request.length() ; ++i) {
+                char chr = request[i];
+                if(chr=='(') numParan++;
+                if(chr==')') numParan--;
+                if(chr=='{') numBrace++;
+                if(chr=='}') numBrace--;
+                if(chr=='[') numBracket++;
+                if(chr==']') numBracket--;
+            }
+            if(numParan!=0) {
+                ostringstream oss;
+                oss << "mismatched () " << numParan;
+                message = oss.str();
+                return PVStructurePtr();
+            }
+            if(numBrace!=0) {
+                ostringstream oss;
+                oss << "mismatched {} " << numBrace;
+                message = oss.str();
+                return PVStructurePtr();
+            }
+            if(numBracket!=0) {
+                ostringstream oss;
+                oss << "mismatched [] " << numBracket;
+                message = oss.str();
+                return PVStructurePtr();
+            }
+            vector<Node> top;
+            try {
+                if(offsetRecord!=string::npos) {
+                    fullFieldName = "record";
+                    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();
+                    }
+                    if(closeBracket-openBracket > 3) {
+                        Node node("record");
+                        Node optNode = createRequestOptions(
+                                request.substr(openBracket+1,closeBracket-openBracket-1));
+                        node.nodes.push_back(optNode);
+                        top.push_back(node);
+                    }
                 }
-                if(closeBracket-openBracket > 3) {
-                    Node node("record");
-                    Node optNode = createRequestOptions(
-                            request.substr(openBracket+1,closeBracket-openBracket-1));
-                    node.nodes.push_back(optNode);
+                if(offsetField!=string::npos) {
+                    fullFieldName = "field";
+                    Node node("field");
+                    size_t openParan = request.find('(', offsetField);
+                    size_t closeParan = request.find(')', openParan);
+                    if(closeParan==string::npos) {
+                        message = request.substr(offsetField)
+                                + " field( does not have matching )";
+                        return PVStructurePtr();
+                    }
+                    if(closeParan>openParan+1) {
+                        createSubNode(node,request.substr(openParan+1,closeParan-openParan-1));
+                    }
                     top.push_back(node);
                 }
+                if(offsetGetField!=string::npos) {
+                    fullFieldName = "getField";
+                    Node node("getField");
+                    size_t openParan = request.find('(', offsetGetField);
+                    size_t closeParan = request.find(')', openParan);
+                    if(closeParan==string::npos) {
+                        message = request.substr(offsetField)
+                                + " getField( does not have matching )";
+                        return PVStructurePtr();
+                    }
+                    if(closeParan>openParan+1) {
+                        createSubNode(node,request.substr(openParan+1,closeParan-openParan-1));
+                    }
+                    top.push_back(node);
+                }
+                if(offsetPutField!=string::npos) {
+                    fullFieldName = "putField";
+                    Node node("putField");
+                    size_t openParan = request.find('(', offsetPutField);
+                    size_t closeParan = request.find(')', openParan);
+                    if(closeParan==string::npos) {
+                        message = request.substr(offsetField)
+                                + " putField( does not have matching )";
+                        return PVStructurePtr();
+                    }
+                    if(closeParan>openParan+1) {
+                        createSubNode(node,request.substr(openParan+1,closeParan-openParan-1));
+                    }
+                    top.push_back(node);
+                }
+            } catch (std::exception &e) {
+                string xxx = e.what();
+                message = "while creating Structure exception " + xxx;
+                return PVStructurePtr();
             }
-            if(offsetField!=string::npos) {
-                fullFieldName = "field";
-                Node node("field");
-                size_t openParan = request.find('(', offsetField);
-                size_t closeParan = request.find(')', openParan);
-                if(closeParan==string::npos) {
-                    message = request.substr(offsetField)
-                            + " field( does not have matching )";
-                    return PVStructurePtr();
+            size_t num = top.size();
+            StringArray names(num);
+            FieldConstPtrArray fields(num);
+            for(size_t i=0; i<num; ++i) {
+                Node node = top[i];
+                names[i] = node.name;
+                vector<Node> subNode = node.nodes;
+                if(subNode.empty()) {
+                    fields[i] = fieldCreate->createStructure();
+                } else {
+                    fields[i] = createSubStructure(subNode);
                 }
-                if(closeParan>openParan+1) {
-                    createSubNode(node,request.substr(openParan+1,closeParan-openParan-1));
-                }
-                top.push_back(node);
             }
-            if(offsetGetField!=string::npos) {
-                fullFieldName = "getField";
-                Node node("getField");
-                size_t openParan = request.find('(', offsetGetField);
-                size_t closeParan = request.find(')', openParan);
-                if(closeParan==string::npos) {
-                    message = request.substr(offsetField)
-                            + " getField( does not have matching )";
-                    return PVStructurePtr();
-                }
-                if(closeParan>openParan+1) {
-                    createSubNode(node,request.substr(openParan+1,closeParan-openParan-1));
-                }
-                top.push_back(node);
-            }
-            if(offsetPutField!=string::npos) {
-                fullFieldName = "putField";
-                Node node("putField");
-                size_t openParan = request.find('(', offsetPutField);
-                size_t closeParan = request.find(')', openParan);
-                if(closeParan==string::npos) {
-                    message = request.substr(offsetField)
-                            + " putField( does not have matching )";
-                    return PVStructurePtr();
-                }
-                if(closeParan>openParan+1) {
-                    createSubNode(node,request.substr(openParan+1,closeParan-openParan-1));
-                }
-                top.push_back(node);
+            StructureConstPtr structure = fieldCreate->createStructure(names, fields);
+            if(!structure) throw std::invalid_argument("bad request " + crequest);
+            PVStructurePtr pvStructure = pvDataCreate->createPVStructure(structure);
+            for(size_t i=0; i<optionList.size(); ++i) {
+                OptionPair pair = optionList[i];
+                string name = pair.name;
+                string value = pair.value;
+                PVStringPtr pvField = pvStructure->getSubField<PVString>(name);
+                if(!pvField) throw std::invalid_argument("bad request " + crequest);
+                pvField->put(value);
             }
+            optionList.clear();
+            return pvStructure;
         } catch (std::exception &e) {
-            string xxx = e.what();
-            message = "while creating Structure exception " + xxx;
-            return PVStructurePtr();
+             message = e.what();
+             return PVStructurePtr();
         }
-        size_t num = top.size();
-        StringArray names(num);
-        FieldConstPtrArray fields(num);
-        for(size_t i=0; i<num; ++i) {
-            Node node = top[i];
-            names[i] = node.name;
-            vector<Node> subNode = node.nodes;
-            if(subNode.empty()) {
-                fields[i] = fieldCreate->createStructure();
-            } else {
-                fields[i] = createSubStructure(subNode);
-            }
-        }
-        StructureConstPtr structure = fieldCreate->createStructure(names, fields);
-        PVStructurePtr pvStructure = pvDataCreate->createPVStructure(structure);
-        for(size_t i=0; i<optionList.size(); ++i) {
-            OptionPair pair = optionList[i];
-            string name = pair.name;
-            string value = pair.value;
-            PVStringPtr pvField = pvStructure->getSubField<PVString>(name);
-            pvField->put(value);
-        }
-        optionList.clear();
-        return pvStructure;
     }
 
+
 };
 
 CreateRequest::shared_pointer CreateRequest::create()

src/copy/createRequest.h

@@ -18,7 +18,12 @@
 namespace epics { namespace pvData {
 
 /**
- * Class to create pvRequest structures to pass to pvAccess Channel methods.
+ * @brief Create pvRequest structure for Channel methods.
+ *
+ * Many methods of the Channel class of pvAccess have an
+ * argument <b>PVStructurePtr const * pvRequest</b>.
+ * This class provides a method that creates a valid pvRequest.
+ *
  */
 class epicsShareClass CreateRequest {
     public:
@@ -33,7 +38,6 @@ class epicsShareClass 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.

src/copy/pvCopy.cpp

@@ -18,7 +18,6 @@
 #include <pv/thread.h>
 
 #include <pv/pvCopy.h>
-#include <pv/convert.h>
 
 using std::tr1::static_pointer_cast;
 using std::tr1::dynamic_pointer_cast;
@@ -29,6 +28,18 @@ using std::endl;
 
 namespace epics { namespace pvData { 
 
+/**
+ * Convenience method for implementing dump.
+ * It generates a newline and inserts blanks at the beginning of the newline.
+ * @param builder The std::string * being constructed.
+ * @param indentLevel Indent level, Each level is four spaces.
+ */
+static void newLine(string *buffer, int indentLevel)
+{
+    *buffer += "\n";
+    *buffer += string(indentLevel*4, ' ');
+}
+
 static PVCopyPtr NULLPVCopy;
 static FieldConstPtr NULLField;
 static StructureConstPtr NULLStructure;
@@ -67,11 +78,11 @@ PVCopyPtr PVCopy::create(
     PVStructurePtr pvStructure(pvRequest);
     if(structureName.size()>0) {
         if(pvRequest->getStructure()->getNumberFields()>0) {
-            pvStructure = pvRequest->getStructureField(structureName);
+            pvStructure = pvRequest->getSubField<PVStructure>(structureName);
             if(!pvStructure) return NULLPVCopy;
         }
     } else if(pvStructure->getSubField("field")) {
-        pvStructure = pvRequest->getStructureField("field");
+        pvStructure = pvRequest->getSubField<PVStructure>("field");
     }
     PVCopyPtr pvCopy = PVCopyPtr(new PVCopy(pvMaster));
     bool result = pvCopy->init(pvStructure);
@@ -243,10 +254,9 @@ void PVCopy::updateCopySetBitSet(
             updateSubFieldSetBitSet(copyPVField,pvMasterField,bitSet);
             return;
         }
-        ConvertPtr convert = getConvert();
-        bool isEqual = convert->equals(copyPVField,pvField);
+        bool isEqual = (*copyPVField == *pvField);
         if(!isEqual) {
-            convert->copy(pvField, copyPVField);
+            copyPVField->copyUnchecked(*pvField);
             bitSet->set(copyPVField->getFieldOffset());
         }
     }
@@ -292,7 +302,7 @@ string PVCopy::dump()
 
 void PVCopy::dump(string *builder,CopyNodePtr const &node,int indentLevel)
 {
-    getConvert()->newLine(builder,indentLevel);
+    newLine(builder,indentLevel);
     std::stringstream ss;
     ss << (node->isStructure ? "structureNode" : "masterNode");
     ss << " structureOffset " << node->structureOffset;
@@ -300,14 +310,14 @@ void PVCopy::dump(string *builder,CopyNodePtr const &node,int indentLevel)
     *builder +=  ss.str();
     PVStructurePtr options = node->options;
     if(options) {
-        getConvert()->newLine(builder,indentLevel +1);
+        newLine(builder,indentLevel +1);
         
         // TODO !!! ugly
         std::ostringstream oss;
         oss << *options;
         *builder += oss.str();
         
-        getConvert()->newLine(builder,indentLevel);
+        newLine(builder,indentLevel);
     }
     if(!node->isStructure) {
         CopyMasterNodePtr masterNode = static_pointer_cast<CopyMasterNode>(node);
@@ -320,7 +330,7 @@ void PVCopy::dump(string *builder,CopyNodePtr const &node,int indentLevel)
     CopyNodePtrArrayPtr nodes = structureNode->nodes;
     for(size_t i=0; i<nodes->size(); ++i) {
         if((*nodes)[i].get()==NULL) {
-            getConvert()->newLine(builder,indentLevel +1);
+            newLine(builder,indentLevel +1);
             ss.str("");
             ss << "node[" << i << "] is null";
             *builder += ss.str();
@@ -339,7 +349,7 @@ bool PVCopy::init(epics::pvData::PVStructurePtr const &pvRequest)
     if(len==0) entireMaster = true;
     PVStructurePtr pvOptions;
     if(len==1 && pvRequest->getSubField("_options")) {
-        pvOptions = pvRequest->getStructureField("_options");
+        pvOptions = pvRequest->getSubField<PVStructure>("_options");
     }
     if(entireMaster) {
         structure = pvMasterStructure->getStructure();
@@ -499,17 +509,16 @@ void PVCopy::updateSubFieldSetBitSet(
     FieldConstPtr field = pvCopy->getField();
     Type type = field->getType();
     if(type!=epics::pvData::structure) {
-        ConvertPtr convert = getConvert();
-        bool isEqual = convert->equals(pvCopy,pvMaster);
+        bool isEqual = (*pvCopy == *pvMaster);
     	if(isEqual) {
     	    if(type==structureArray) {
     	        // always act as though a change occurred.
     	        // Note that array elements are shared.
-		bitSet->set(pvCopy->getFieldOffset());
+                bitSet->set(pvCopy->getFieldOffset());
     	    }
     	}
         if(isEqual) return;
-        convert->copy(pvMaster, pvCopy);
+        pvCopy->copyUnchecked(*pvMaster);
         bitSet->set(pvCopy->getFieldOffset());
         return;
     }
@@ -574,7 +583,6 @@ void PVCopy::updateSubFieldFromBitSet(
         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);
@@ -595,9 +603,9 @@ void PVCopy::updateSubFieldFromBitSet(
         }
     } else {
         if(toCopy) {
-            convert->copy(pvMasterField, pvCopy);
+            pvCopy->copyUnchecked(*pvMasterField);
         } else {
-            convert->copy(pvCopy, pvMasterField);
+            pvMasterField->copyUnchecked(*pvCopy);
         }
     }
 }

src/copy/pvCopy.h

@@ -25,7 +25,8 @@ class PVCopyTraverseMasterCallback;
 typedef std::tr1::shared_ptr<PVCopyTraverseMasterCallback> PVCopyTraverseMasterCallbackPtr;
 
 /**
- * Callback for traversing master structure
+ * @brief Callback for traversing master structure
+ *
  * Must be implemented by code that creates pvCopy.
  */
 class epicsShareClass PVCopyTraverseMasterCallback
@@ -53,6 +54,8 @@ typedef std::tr1::shared_ptr<CopyStructureNode> CopyStructureNodePtr;
 
 
 /**
+ * @brief Support for subset of fields in a pvStructure.
+ *
  * Class that manages one or more PVStructures that holds an arbitrary subset of the fields
  * in another PVStructure called master.
  */
@@ -63,8 +66,8 @@ 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 pvMaster The top-level structure for which a copy of
+     * an arbitrary 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.
      */
@@ -75,8 +78,8 @@ public:
     virtual ~PVCopy(){}
     virtual void destroy();
     /**
-     * Get the top level structure of master
-     * @returns The master top level structure.
+     * Get the top-level structure of master
+     * @returns The master top-level structure.
      * This should not be modified.
      */
     PVStructurePtr getPVMaster();
@@ -94,7 +97,7 @@ public:
     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.
+     * Since each element needs a PVStructure, multiple top-level structures will be created.
      */
     PVStructurePtr createPVStructure();
     /**
@@ -113,15 +116,15 @@ public:
         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.
+     * Given an offset in the copy get the corresponding field in pvMaster.
+     * @param structureOffset 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 copyPVStructure A copy top-level structure.
      * @param bitSet A bitSet for copyPVStructure.
      */
     void initCopy(
@@ -130,7 +133,7 @@ public:
     /**
      * 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 copyPVStructure A copy top-level structure.
      * @param bitSet A bitSet for copyPVStructure.
      */
     void updateCopySetBitSet(
@@ -138,8 +141,8 @@ public:
         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.
+     * set the field in copyPVStructure to the value of the corresponding field in pvMaster.
+     * @param copyPVStructure A copy top-level structure.
      * @param bitSet A bitSet for copyPVStructure.
      */
     void updateCopyFromBitSet(
@@ -147,8 +150,8 @@ public:
         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.
+     * set the field in pvMaster to the value of the corresponding field in copyPVStructure
+     * @param copyPVStructure A copy top-level structure.
      * @param bitSet A bitSet for copyPVStructure.
      */
     void updateMaster(
@@ -156,7 +159,7 @@ public:
         BitSetPtr const  &bitSet);
     /**
      * Get the options for the field at the specified offset.
-     * @param offset the offset in copy.
+     * @param fieldOffset 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

src/factory/Compare.cpp

@@ -12,13 +12,13 @@
 #include <sstream>
 
 #define epicsExportSharedSymbols
-#include <pv/convert.h>
+#include <pv/pvData.h>
 
 using std::string;
 
 namespace epics { namespace pvData {
 
-// Introspection object comparision
+// Introspection object comparison
 
 /** Field equality conditions:
  * 1) same instance
@@ -62,7 +62,7 @@ bool operator==(const Field& a, const Field& b)
             return A==B;
         }
     default:
-        throw std::logic_error("Invalid Field type in comparision");
+        throw std::logic_error("Invalid Field type in comparison");
     }
 }
 
@@ -91,14 +91,14 @@ bool operator==(const Structure& a, const Structure& b)
         return false;
 
     // std::equals does not work, since FieldConstPtrArray is an array of shared_pointers
-    FieldConstPtrArray af = a.getFields();
-    FieldConstPtrArray bf = b.getFields();
+    FieldConstPtrArray const & af = a.getFields();
+    FieldConstPtrArray const & 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();
+    StringArray const & an = a.getFieldNames();
+    StringArray const & bn = b.getFieldNames();
     return std::equal( an.begin(), an.end(), bn.begin() );
 }
 
@@ -118,14 +118,14 @@ bool operator==(const Union& a, const Union& b)
         return false;
 
     // std::equals does not work, since FieldConstPtrArray is an array of shared_pointers
-    FieldConstPtrArray af = a.getFields();
-    FieldConstPtrArray bf = b.getFields();
+    FieldConstPtrArray const & af = a.getFields();
+    FieldConstPtrArray const & 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();
+    StringArray const & an = a.getFieldNames();
+    StringArray const & bn = b.getFieldNames();
     return std::equal( an.begin(), an.end(), bn.begin() );
 }
 

src/factory/Convert.cpp

@@ -52,9 +52,6 @@ void Convert::getString(string *buf,PVField const *pvField,int /*indentLevel*/)
     std::ostringstream strm;
     pvField->dumpValue(strm);
     strm << std::endl;
-//    PrinterPlain p;
-//    p.setStream(strm);
-//    p.print(*pvField);
     strm.str().swap(*buf);
 }
 
@@ -152,371 +149,6 @@ size_t Convert::toStringArray(PVScalarArrayPtr const & pv,
     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())
-    {
-            to->set(from->get());
-    }
-    else
-    {
-        if (fromValue.get() == 0)
-            to->select(PVUnion::UNDEFINED_INDEX);
-        else
-            to->set(from->getSelectedIndex(),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;

src/factory/FieldCreateFactory.cpp

@@ -22,7 +22,6 @@
 #define epicsExportSharedSymbols
 #include <pv/lock.h>
 #include <pv/pvIntrospect.h>
-#include <pv/convert.h>
 #include <pv/factory.h>
 #include <pv/serializeHelper.h>
 
@@ -52,7 +51,7 @@ Scalar::Scalar(ScalarType scalarType)
        : Field(scalar),scalarType(scalarType)
 {
     if(scalarType<0 || scalarType>MAX_SCALAR_TYPE)
-        throw std::invalid_argument("Can't construct Scalar from invalid ScalarType");
+        THROW_EXCEPTION2(std::invalid_argument, "Can't construct Scalar from invalid ScalarType");
 }
 
 Scalar::~Scalar(){}
@@ -137,7 +136,7 @@ BoundedString::BoundedString(std::size_t maxStringLength) :
     Scalar(pvString), maxLength(maxStringLength)
 {
     if (maxLength == 0)
-        throw std::invalid_argument("maxLength == 0");
+        THROW_EXCEPTION2(std::invalid_argument, "maxLength == 0");
 }
 
 BoundedString::~BoundedString() {}
@@ -400,7 +399,13 @@ void UnionArray::deserialize(ByteBuffer* /*buffer*/, DeserializableControl* /*co
     throw std::runtime_error("not valid operation, use FieldCreate::deserialize instead");
 }
 
-string Structure::DEFAULT_ID = "structure";
+const string Structure::DEFAULT_ID = Structure::defaultId();
+
+const string & Structure::defaultId()
+{
+    static const string id = "structure";
+    return id;
+}
 
 Structure::Structure (
     StringArray const & fieldNames,
@@ -412,27 +417,27 @@ Structure::Structure (
       id(inid)
 {
     if(inid.empty()) {
-        throw std::invalid_argument("id is empty");
+        THROW_EXCEPTION2(std::invalid_argument, "Can't construct Structure, id is empty string");
     }
     if(fieldNames.size()!=fields.size()) {
-        throw std::invalid_argument("fieldNames.size()!=fields.size()");
+        THROW_EXCEPTION2(std::invalid_argument, "Can't construct Structure, fieldNames.size()!=fields.size()");
     }
     size_t number = fields.size();
     for(size_t i=0; i<number; i++) {
         const string& name = fieldNames[i];
         if(name.empty()) {
-            throw std::invalid_argument("fieldNames has a zero length string");
+            THROW_EXCEPTION2(std::invalid_argument, "Can't construct Structure, empty string in fieldNames");
         }
         if(fields[i].get()==NULL)
-            throw std::invalid_argument("Can't construct Structure with NULL Field");
+            THROW_EXCEPTION2(std::invalid_argument, "Can't construct Structure, NULL in fields");
         // 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 ");
+                string  message("Can't construct Structure, duplicate fieldName ");
                 message += name;
-                throw std::invalid_argument(message);
+                THROW_EXCEPTION2(std::invalid_argument, message);
             }
         }
     }
@@ -497,7 +502,9 @@ void Structure::dumpFields(std::ostream& o) const
             case structureArray:
             {
                 format::indent_scope s(o);
-                o << *pfield;
+                Field const *xxx = pfield.get();
+                StructureArray const *pstructureArray = static_cast<StructureArray const*>(xxx);
+                o << *pstructureArray->getStructure();
                 break;
             }
             case union_:
@@ -511,7 +518,9 @@ void Structure::dumpFields(std::ostream& o) const
             case unionArray:
             {
                 format::indent_scope s(o);
-                o << *pfield;
+                Field const *xxx = pfield.get();
+                UnionArray const *punionArray = static_cast<UnionArray const*>(xxx);
+                o << *punionArray->getUnion();
                 break;
             }
         }
@@ -528,20 +537,30 @@ void Structure::deserialize(ByteBuffer* /*buffer*/, DeserializableControl* /*con
     throw std::runtime_error("not valid operation, use FieldCreate::deserialize instead");
 }
 
-string Union::DEFAULT_ID = "union";
+const string Union::DEFAULT_ID = Union::defaultId();
 
-#define UNION_ANY_ID "any"
-string Union::ANY_ID = UNION_ANY_ID;
+const string & Union::defaultId()
+{
+    static const string id = "union";
+    return id;
+}
+
+const string Union::ANY_ID = Union::anyId();
+
+const string & Union::anyId()
+{
+    static const string id = "any";
+    return id;
+}
 
 Union::Union ()
 : Field(union_),
       fieldNames(),
       fields(),
-      id(UNION_ANY_ID)
+      id(anyId())
 {
 }
 
-#undef UNION_ANY_ID
 
 Union::Union (
     StringArray const & fieldNames,
@@ -553,31 +572,31 @@ Union::Union (
       id(inid)
 {
     if(inid.empty()) {
-        throw std::invalid_argument("id is empty");
+        THROW_EXCEPTION2(std::invalid_argument, "Can't construct Union, id is empty string");
     }
     if(fieldNames.size()!=fields.size()) {
-        throw std::invalid_argument("fieldNames.size()!=fields.size()");
+        THROW_EXCEPTION2(std::invalid_argument, "Can't construct Union, fieldNames.size()!=fields.size()");
     }
     if(fields.size()==0 && inid!=ANY_ID) {
-        throw std::invalid_argument("no fields but id is different than " + ANY_ID);
+        THROW_EXCEPTION2(std::invalid_argument, "Can't construct Union, no fields only allowed when id = " + ANY_ID);
     }
 
     size_t number = fields.size();
     for(size_t i=0; i<number; i++) {
         const string& name = fieldNames[i];
         if(name.empty()) {
-            throw std::invalid_argument("fieldNames has a zero length string");
+            THROW_EXCEPTION2(std::invalid_argument, "Can't construct Union, empty string in fieldNames");
         }
         if(fields[i].get()==NULL)
-            throw std::invalid_argument("Can't construct Union with NULL Field");
+            THROW_EXCEPTION2(std::invalid_argument, "Can't construct Union, NULL in fields");
         // 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 ");
+                string  message("Can't construct Union, duplicate fieldName ");
                 message += name;
-                throw std::invalid_argument(message);
+                THROW_EXCEPTION2(std::invalid_argument, message);
             }
         }
     }
@@ -759,7 +778,7 @@ FieldBuilderPtr FieldBuilder::addArray(string const & name, FieldConstPtr const
         case scalar:
 
             if (std::tr1::dynamic_pointer_cast<const BoundedString>(element).get())
-                throw std::invalid_argument("bounded string arrays are not supported");
+                THROW_EXCEPTION2(std::invalid_argument, "bounded string arrays are not supported");
 
             fields.push_back(fieldCreate->createScalarArray(static_pointer_cast<const Scalar>(element)->getScalarType()));
             break;
@@ -767,7 +786,7 @@ FieldBuilderPtr FieldBuilder::addArray(string const & name, FieldConstPtr const
         default:
             std::ostringstream msg("unsupported array element type: ");
             msg << element->getType();
-            throw std::invalid_argument(msg.str());
+            THROW_EXCEPTION2(std::invalid_argument, msg.str());
     }
     
     fieldNames.push_back(name);
@@ -796,7 +815,7 @@ FieldConstPtr FieldBuilder::createFieldInternal(Type type)
     {
         std::ostringstream msg("unsupported type: ");
         msg << type;
-        throw std::invalid_argument(msg.str());
+        THROW_EXCEPTION2(std::invalid_argument, msg.str());
     }
 }
 
@@ -804,7 +823,7 @@ FieldConstPtr FieldBuilder::createFieldInternal(Type type)
 StructureConstPtr FieldBuilder::createStructure()
 {
     if (parentBuilder.get())
-        throw std::runtime_error("createStructure() called in nested FieldBuilder");
+        THROW_EXCEPTION2(std::runtime_error, "createStructure() called in nested FieldBuilder");
 	
     StructureConstPtr field(static_pointer_cast<const Structure>(createFieldInternal(structure)));
     reset();
@@ -814,7 +833,7 @@ StructureConstPtr FieldBuilder::createStructure()
 UnionConstPtr FieldBuilder::createUnion()
 {
     if (parentBuilder.get())
-        throw std::runtime_error("createUnion() called in nested FieldBuilder");
+        THROW_EXCEPTION2(std::runtime_error, "createUnion() called in nested FieldBuilder");
 	
     UnionConstPtr field(static_pointer_cast<const Union>(createFieldInternal(union_)));
     reset();
@@ -846,7 +865,7 @@ FieldBuilderPtr FieldBuilder::addNestedUnionArray(string const & name)
 FieldBuilderPtr FieldBuilder::endNested()
 {
     if (!parentBuilder.get())
-        throw std::runtime_error("this method can only be called to create nested fields");
+        THROW_EXCEPTION2(std::runtime_error, "this method can only be called to create nested fields");
         
     FieldConstPtr nestedField = createFieldInternal(nestedClassToBuild);
     if (nestedArray)
@@ -865,8 +884,11 @@ FieldBuilderPtr FieldCreate::createFieldBuilder() const
 
 ScalarConstPtr FieldCreate::createScalar(ScalarType scalarType) const
 {
-    if(scalarType<0 || scalarType>MAX_SCALAR_TYPE)
-        throw std::invalid_argument("Can't construct Scalar from invalid ScalarType");
+    if(scalarType<0 || scalarType>MAX_SCALAR_TYPE) {
+        std::ostringstream strm("Can't construct Scalar from invalid ScalarType ");
+        strm << scalarType;
+        THROW_EXCEPTION2(std::invalid_argument, strm.str());
+    }
 
     return scalars[scalarType];
 }
@@ -881,16 +903,22 @@ BoundedStringConstPtr FieldCreate::createBoundedString(std::size_t maxLength) co
 
 ScalarArrayConstPtr FieldCreate::createScalarArray(ScalarType elementType) const
 {
-    if(elementType<0 || elementType>MAX_SCALAR_TYPE)
-        throw std::invalid_argument("Can't construct ScalarArray from invalid ScalarType");
+    if(elementType<0 || elementType>MAX_SCALAR_TYPE) {
+        std::ostringstream strm("Can't construct ScalarArray from invalid ScalarType ");
+        strm << elementType;
+        THROW_EXCEPTION2(std::invalid_argument, strm.str());
+    }
         
     return scalarArrays[elementType];
 }
 
 ScalarArrayConstPtr FieldCreate::createFixedScalarArray(ScalarType elementType, size_t size) const
 {
-    if(elementType<0 || elementType>MAX_SCALAR_TYPE)
-        throw std::invalid_argument("Can't construct ScalarArray from invalid ScalarType");
+    if(elementType<0 || elementType>MAX_SCALAR_TYPE) {
+        std::ostringstream strm("Can't construct fixed ScalarArray from invalid ScalarType ");
+        strm << elementType;
+        THROW_EXCEPTION2(std::invalid_argument, strm.str());
+    }
 
     // TODO use std::make_shared
     std::tr1::shared_ptr<ScalarArray> s(new FixedScalarArray(elementType, size), Field::Deleter());
@@ -900,8 +928,11 @@ ScalarArrayConstPtr FieldCreate::createFixedScalarArray(ScalarType elementType,
 
 ScalarArrayConstPtr FieldCreate::createBoundedScalarArray(ScalarType elementType, size_t size) const
 {
-    if(elementType<0 || elementType>MAX_SCALAR_TYPE)
-        throw std::invalid_argument("Can't construct ScalarArray from invalid ScalarType");
+    if(elementType<0 || elementType>MAX_SCALAR_TYPE) {
+        std::ostringstream strm("Can't construct bounded ScalarArray from invalid ScalarType ");
+        strm << elementType;
+        THROW_EXCEPTION2(std::invalid_argument, strm.str());
+    }
 
     // TODO use std::make_shared
     std::tr1::shared_ptr<ScalarArray> s(new BoundedScalarArray(elementType, size), Field::Deleter());
@@ -989,8 +1020,8 @@ StructureConstPtr FieldCreate::appendField(
     string const & fieldName,
     FieldConstPtr const & field) const
 {
-    StringArray oldNames = structure->getFieldNames();
-    FieldConstPtrArray oldFields = structure->getFields();
+    StringArray const & oldNames = structure->getFieldNames();
+    FieldConstPtrArray const & oldFields = structure->getFields();
     size_t oldLen = oldNames.size();
     StringArray newNames(oldLen+1);
     FieldConstPtrArray newFields(oldLen+1);
@@ -1008,8 +1039,8 @@ StructureConstPtr FieldCreate::appendFields(
     StringArray const & fieldNames,
     FieldConstPtrArray const & fields) const
 {
-    StringArray oldNames = structure->getFieldNames();
-    FieldConstPtrArray oldFields = structure->getFields();
+    StringArray const & oldNames = structure->getFieldNames();
+    FieldConstPtrArray const & oldFields = structure->getFields();
     size_t oldLen = oldNames.size();
     size_t extra = fieldNames.size();
     StringArray newNames(oldLen+extra);
@@ -1230,3 +1261,12 @@ FieldCreatePtr getFieldCreate() {
 }
 
 }}
+
+namespace std{
+    std::ostream& operator<<(std::ostream& o, const epics::pvData::Field *ptr)
+    {
+        if(ptr) return o << *ptr;
+        return o << "nullptr";
+    }
+}
+

src/factory/PVDataCreateFactory.cpp

@@ -21,7 +21,6 @@
 #include <pv/lock.h>
 #include <pv/pvIntrospect.h>
 #include <pv/pvData.h>
-#include <pv/convert.h>
 #include <pv/factory.h>
 #include <pv/serializeHelper.h>
 
@@ -527,7 +526,7 @@ PVFieldPtr PVDataCreate::createPVField(PVFieldPtr const & fieldToClone)
              PVStructurePtr pvStructure
                    = static_pointer_cast<PVStructure>(fieldToClone);
              StringArray const & fieldNames = pvStructure->getStructure()->getFieldNames();
-             PVFieldPtrArray pvFieldPtrArray = pvStructure->getPVFields();
+             PVFieldPtrArray const & pvFieldPtrArray = pvStructure->getPVFields();
              return createPVStructure(fieldNames,pvFieldPtrArray);
          }
      case structureArray:
@@ -537,7 +536,7 @@ PVFieldPtr PVDataCreate::createPVField(PVFieldPtr const & fieldToClone)
              StructureArrayConstPtr structureArray = from->getStructureArray();
              PVStructureArrayPtr to = createPVStructureArray(
                  structureArray);
-             getConvert()->copyStructureArray(from, to);
+             to->copyUnchecked(*from);
              return to;
          }
      case union_:
@@ -552,7 +551,7 @@ PVFieldPtr PVDataCreate::createPVField(PVFieldPtr const & fieldToClone)
                  = static_pointer_cast<PVUnionArray>(fieldToClone);
              UnionArrayConstPtr unionArray = from->getUnionArray();
              PVUnionArrayPtr to = createPVUnionArray(unionArray);
-             getConvert()->copyUnionArray(from, to);
+             to->copyUnchecked(*from);
              return to;
          }
      }
@@ -602,7 +601,7 @@ PVScalarPtr PVDataCreate::createPVScalar(PVScalarPtr const & scalarToClone)
 {
      ScalarType scalarType = scalarToClone->getScalar()->getScalarType();
      PVScalarPtr pvScalar = createPVScalar(scalarType);
-     getConvert()->copyScalar(scalarToClone, pvScalar);
+     pvScalar->copyUnchecked(*scalarToClone);
      return pvScalar;
 }
 
@@ -712,7 +711,7 @@ PVStructurePtr PVDataCreate::createPVStructure(PVStructurePtr const & structToCl
     }
     StructureConstPtr structure = structToClone->getStructure();
     PVStructurePtr pvStructure(new PVStructure(structure));
-    getConvert()->copyStructure(structToClone,pvStructure);
+    pvStructure->copyUnchecked(*structToClone);
     return pvStructure;
 }
 
@@ -741,3 +740,12 @@ PVDataCreatePtr getPVDataCreate() {
 }
 
 }}
+
+namespace std{
+    std::ostream& operator<<(std::ostream& o, const epics::pvData::PVField *ptr)
+    {
+        if(ptr) return o << *ptr;
+        return o << "nullptr";
+    }
+}
+

src/factory/PVField.cpp

@@ -16,7 +16,6 @@
 #include <pv/lock.h>
 #include <pv/pvData.h>
 #include <pv/factory.h>
-#include <pv/convert.h>
 
 using std::tr1::const_pointer_cast;
 using std::size_t;
@@ -121,7 +120,7 @@ void PVField::computeOffset(const PVField   *  pvField) {
     }
     size_t offset = 0;
     size_t nextOffset = 1;
-    PVFieldPtrArray  pvFields = pvTop->getPVFields();
+    const PVFieldPtrArray & pvFields = pvTop->getPVFields();
     for(size_t i=0; i < pvTop->getStructure()->getNumberFields(); i++) {
         offset = nextOffset;
         PVField *pvField = pvFields[i].get();
@@ -153,7 +152,7 @@ void PVField::computeOffset(const PVField   *  pvField,size_t offset) {
     size_t beginOffset = offset;
     size_t nextOffset = offset + 1;
     const PVStructure *pvStructure = static_cast<const PVStructure *>(pvField);
-    const PVFieldPtrArray  pvFields = pvStructure->getPVFields();
+    const PVFieldPtrArray & pvFields = pvStructure->getPVFields();
     for(size_t i=0; i < pvStructure->getStructure()->getNumberFields(); i++) {
         offset = nextOffset;
         PVField *pvSubField = pvFields[i].get();
@@ -180,4 +179,117 @@ void PVField::computeOffset(const PVField   *  pvField,size_t offset) {
     xxx->nextFieldOffset = nextOffset;
 }
 
+void PVField::copy(const PVField& from)
+{
+    if(isImmutable())
+        throw std::invalid_argument("destination is immutable");
+
+    if (getField()->getType() != from.getField()->getType())
+        throw std::invalid_argument("field types do not match");
+
+    switch(getField()->getType())
+    {
+    case scalar:
+        {
+             const PVScalar* fromS = static_cast<const PVScalar*>(&from);
+             PVScalar* toS = static_cast<PVScalar*>(this);
+             toS->copy(*fromS);
+             break;
+        }
+    case scalarArray:
+        {
+             const PVScalarArray* fromS = static_cast<const PVScalarArray*>(&from);
+             PVScalarArray* toS = static_cast<PVScalarArray*>(this);
+             toS->copy(*fromS);
+             break;
+        }
+    case structure:
+        {
+             const PVStructure* fromS = static_cast<const PVStructure*>(&from);
+             PVStructure* toS = static_cast<PVStructure*>(this);
+             toS->copy(*fromS);
+             break;
+        }
+    case structureArray:
+        {
+             const PVStructureArray* fromS = static_cast<const PVStructureArray*>(&from);
+             PVStructureArray* toS = static_cast<PVStructureArray*>(this);
+             toS->copy(*fromS);
+             break;
+        }
+    case union_:
+        {
+             const PVUnion* fromS = static_cast<const PVUnion*>(&from);
+             PVUnion* toS = static_cast<PVUnion*>(this);
+             toS->copy(*fromS);
+             break;
+        }
+    case unionArray:
+        {
+             const PVUnionArray* fromS = static_cast<const PVUnionArray*>(&from);
+             PVUnionArray* toS = static_cast<PVUnionArray*>(this);
+             toS->copy(*fromS);
+             break;
+        }
+    default:
+        {
+            throw std::logic_error("PVField::copy unknown type");
+        }
+    }
+}
+
+void PVField::copyUnchecked(const PVField& from)
+{
+    switch(getField()->getType())
+    {
+    case scalar:
+        {
+             const PVScalar* fromS = static_cast<const PVScalar*>(&from);
+             PVScalar* toS = static_cast<PVScalar*>(this);
+             toS->copyUnchecked(*fromS);
+             break;
+        }
+    case scalarArray:
+        {
+             const PVScalarArray* fromS = static_cast<const PVScalarArray*>(&from);
+             PVScalarArray* toS = static_cast<PVScalarArray*>(this);
+             toS->copyUnchecked(*fromS);
+             break;
+        }
+    case structure:
+        {
+             const PVStructure* fromS = static_cast<const PVStructure*>(&from);
+             PVStructure* toS = static_cast<PVStructure*>(this);
+             toS->copyUnchecked(*fromS);
+             break;
+        }
+    case structureArray:
+        {
+             const PVStructureArray* fromS = static_cast<const PVStructureArray*>(&from);
+             PVStructureArray* toS = static_cast<PVStructureArray*>(this);
+             toS->copyUnchecked(*fromS);
+             break;
+        }
+    case union_:
+        {
+             const PVUnion* fromS = static_cast<const PVUnion*>(&from);
+             PVUnion* toS = static_cast<PVUnion*>(this);
+             toS->copyUnchecked(*fromS);
+             break;
+        }
+    case unionArray:
+        {
+             const PVUnionArray* fromS = static_cast<const PVUnionArray*>(&from);
+             PVUnionArray* toS = static_cast<PVUnionArray*>(this);
+             toS->copyUnchecked(*fromS);
+             break;
+        }
+    default:
+        {
+            throw std::logic_error("PVField::copy unknown type");
+        }
+    }
+}
+
+
 }}

src/factory/PVStructure.cpp

@@ -16,7 +16,6 @@
 #define epicsExportSharedSymbols
 #include <pv/pvData.h>
 #include <pv/pvIntrospect.h>
-#include <pv/convert.h>
 #include <pv/factory.h>
 #include <pv/bitSet.h>
 
@@ -45,18 +44,14 @@ 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();
+    FieldConstPtrArray const & fields = structurePtr->getFields();
+    StringArray const & fieldNames = structurePtr->getFieldNames();
 //    PVFieldPtrArray * xxx = const_cast<PVFieldPtrArray *>(&pvFields);
     pvFields.reserve(numberFields);
     PVDataCreatePtr pvDataCreate = getPVDataCreate();
@@ -76,7 +71,7 @@ PVStructure::PVStructure(StructureConstPtr const & structurePtr,
   extendsStructureName("")
 {
     size_t numberFields = structurePtr->getNumberFields();
-    StringArray fieldNames = structurePtr->getFieldNames();
+    StringArray const & fieldNames = structurePtr->getFieldNames();
     pvFields.reserve(numberFields);
     for(size_t i=0; i<numberFields; i++) {
         pvFields.push_back(pvs[i]);
@@ -112,7 +107,11 @@ const PVFieldPtrArray & PVStructure::getPVFields() const
 
 PVFieldPtr  PVStructure::getSubField(string const &fieldName) const
 {
-    return findSubField(fieldName,this);
+    PVField * field = getSubFieldImpl(fieldName.c_str(), false);
+    if (field)
+       return field->shared_from_this();
+    else
+       return PVFieldPtr();
 }
 
 
@@ -135,107 +134,111 @@ PVFieldPtr  PVStructure::getSubField(size_t fieldOffset) const
     throw std::logic_error("PVStructure.getSubField: Logic error");
 }
 
-
-PVBooleanPtr PVStructure::getBooleanField(string const &fieldName)
+PVFieldPtr PVStructure::getSubFieldT(std::size_t fieldOffset) const
 {
-    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;
+    PVFieldPtr pvField = getSubField(fieldOffset);
+    if (pvField.get())
+        return pvField;
+    else
+    {
+        std::stringstream ss;
+        ss << "Failed to get field with offset "
+           << fieldOffset << "(Invalid offset)" ;
+        throw std::runtime_error(ss.str());
     }
-    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)
+PVField* PVStructure::getSubFieldImpl(const char *name, bool throws) const
 {
-    return getSubField<PVStructureArray>(fieldName);
-}
+    const PVStructure *parent = this;
+    if(!name)
+    {
+        if (throws)
+            throw std::invalid_argument("Failed to get field: (Field name is NULL string)");
+        else
+            return NULL;
+    }
+    const char *fullName = name;
+    while(true) {
+        const char *sep=name;
+        while(*sep!='\0' && *sep!='.' && *sep!=' ') sep++;
+        if(*sep==' ')
+        {
+            if (throws)
+            {
+                std::stringstream ss;
+                ss << "Failed to get field: " << fullName
+                   << " (No spaces allowed in field name)";
+                throw std::runtime_error(ss.str());
+            }
+            else
+                return NULL;
+        }
+        size_t N = sep-name;
+        if(N==0)
+        {
+            if (throws)
+            {
+                std::stringstream ss;
+                ss << "Failed to get field: " << fullName
+                   << " (Zero-length field name encountered)";
+                throw std::runtime_error(ss.str());
+            }
+            else
+                return NULL;
+        }
 
-PVUnionArrayPtr PVStructure::getUnionArrayField(
-    string const &fieldName)
-{
-    return getSubField<PVUnionArray>(fieldName);
+        const PVFieldPtrArray& pvFields = parent->getPVFields();
+
+        PVField *child = NULL;
+
+        for(size_t i=0, n=pvFields.size(); i!=n; i++) {
+            const PVFieldPtr& fld = pvFields[i];
+            const std::string& fname = fld->getFieldName();
+
+            if(fname.size()==N && memcmp(name, fname.c_str(), N)==0) {
+                child = fld.get();
+                break;
+            }
+        }
+
+        if(!child)
+        {
+            if (throws)
+            {
+                std::stringstream ss;
+                ss << "Failed to get field: " << fullName << " ("
+                   << std::string(fullName, sep) << " not found)";
+                throw std::runtime_error(ss.str());   
+            }
+            else
+                return NULL;
+        }
+
+        if(*sep) {
+            // this is not the requested leaf
+            parent = dynamic_cast<PVStructure*>(child);
+            if(!parent)
+            {
+                if (throws)
+                {
+                    std::stringstream ss;
+                    ss << "Failed to get field: " << fullName
+                       << " (" << std::string(fullName, sep)
+                       <<  " is not a structure)"; 
+                    throw std::runtime_error(ss.str());
+                }
+                else
+                    return NULL;
+            }
+            child = NULL;
+            name = sep+1; // skip past '.'
+            // loop around to new parent
+
+        } else {
+            return child;
+        }
+    }
 }
 
 
@@ -328,37 +331,6 @@ void PVStructure::deserialize(ByteBuffer *pbuffer,
     }
 }
 
-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();
@@ -382,4 +354,79 @@ std::ostream& PVStructure::dumpValue(std::ostream& o) const
  	return o;
 }
 
+
+void PVStructure::copy(const PVStructure& from)
+{
+    if(isImmutable())
+        throw std::invalid_argument("destination is immutable");
+
+    if(*getStructure() != *from.getStructure())
+        throw std::invalid_argument("structure definitions do not match");
+
+    copyUnchecked(from);
+}
+
+void PVStructure::copyUnchecked(const PVStructure& from)
+{
+    if (this == &from)
+        return;
+
+    PVFieldPtrArray const & fromPVFields = from.getPVFields();
+    PVFieldPtrArray const & toPVFields = getPVFields();
+
+    size_t fieldsSize = fromPVFields.size();
+    for(size_t i = 0; i<fieldsSize; i++) {
+        toPVFields[i]->copyUnchecked(*fromPVFields[i]);
+    }
+}
+
+void PVStructure::copyUnchecked(const PVStructure& from, const BitSet& maskBitSet, bool inverse)
+{
+    if (this == &from)
+        return;
+
+    size_t numberFields = from.getNumberFields();
+    size_t offset = from.getFieldOffset();
+    int32 next = inverse ?
+                maskBitSet.nextClearBit(static_cast<uint32>(offset)) :
+                maskBitSet.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) {
+        copyUnchecked(from);
+        return;
+    }
+
+    PVFieldPtrArray const & fromPVFields = from.getPVFields();
+    PVFieldPtrArray const & toPVFields = getPVFields();
+
+    size_t fieldsSize = fromPVFields.size();
+    for(size_t i = 0; i<fieldsSize; i++) {
+        PVFieldPtr pvField = fromPVFields[i];
+        offset = pvField->getFieldOffset();
+        int32 inumberFields = static_cast<int32>(pvField->getNumberFields());
+        next = inverse ?
+                    maskBitSet.nextClearBit(static_cast<uint32>(offset)) :
+                    maskBitSet.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) {
+            toPVFields[i]->copyUnchecked(*pvField);
+        } else {
+            PVStructure::shared_pointer fromPVStructure = std::tr1::static_pointer_cast<PVStructure>(pvField);
+            PVStructure::shared_pointer toPVStructure = std::tr1::static_pointer_cast<PVStructure>(toPVFields[i]);
+            toPVStructure->copyUnchecked(*fromPVStructure, maskBitSet, inverse);
+       }
+    }
+}
+
+
 }}

src/factory/PVStructureArray.cpp

@@ -14,7 +14,6 @@
 
 #define epicsExportSharedSymbols
 #include <pv/pvData.h>
-#include <pv/convert.h>
 #include <pv/factory.h>
 #include <pv/serializeHelper.h>
 
@@ -179,7 +178,7 @@ void PVStructureArray::deserialize(ByteBuffer *pbuffer,
             data[i].reset();
         }
         else {
-            if(data[i].get()==NULL) {
+            if(data[i].get()==NULL || !data[i].unique()) {
                 data[i] = pvDataCreate->createPVStructure(structure);
             }
             data[i]->deserialize(pbuffer, pcontrol);
@@ -242,4 +241,23 @@ std::ostream& PVStructureArray::dumpValue(std::ostream& o, std::size_t index) co
     return o;
 }
 
+void PVStructureArray::copy(const PVStructureArray& from)
+{
+    if(isImmutable())
+        throw std::invalid_argument("destination is immutable");
+
+    if(*getStructureArray() != *from.getStructureArray())
+        throw std::invalid_argument("structureArray definitions do not match");
+
+    copyUnchecked(from);
+}
+
+void PVStructureArray::copyUnchecked(const PVStructureArray& from)
+{
+    if (this == &from)
+        return;
+
+    replace(from.view());
+}
+
 }}

src/factory/PVUnion.cpp

@@ -16,7 +16,6 @@
 #define epicsExportSharedSymbols
 #include <pv/pvData.h>
 #include <pv/pvIntrospect.h>
-#include <pv/convert.h>
 #include <pv/factory.h>
 #include <pv/serializeHelper.h>
 
@@ -29,6 +28,8 @@ namespace epics { namespace pvData {
 #define PVUNION_UNDEFINED_INDEX -1
 int32 PVUnion::UNDEFINED_INDEX = PVUNION_UNDEFINED_INDEX;
 
+PVDataCreatePtr PVUnion::pvDataCreate(getPVDataCreate());
+
 PVUnion::PVUnion(UnionConstPtr const & unionPtr)
 : PVField(unionPtr),
   unionPtr(unionPtr),
@@ -87,7 +88,7 @@ PVFieldPtr PVUnion::select(int32 index)
 
     FieldConstPtr field = unionPtr->getField(index);
     selector = index;
-    value = getPVDataCreate()->createPVField(field);
+    value = pvDataCreate->createPVField(field);
 
     return value;
 }
@@ -144,10 +145,10 @@ void PVUnion::serialize(ByteBuffer *pbuffer, SerializableControl *pflusher) cons
     if (variant)
     {
         // write introspection data
-        if (value.get() == 0)
+        if (value.get() == 0) {
+            pflusher->ensureBuffer(1);
             pbuffer->put((int8)-1);
-        else
-        {
+        }else {
             pflusher->cachedSerialize(value->getField(), pbuffer);
             value->serialize(pbuffer, pflusher);
         }
@@ -171,7 +172,7 @@ void PVUnion::deserialize(ByteBuffer *pbuffer, DeserializableControl *pcontrol)
         {
             // try to reuse existing field instance
             if (!value.get() || *value->getField() != *field)
-                value = getPVDataCreate()->createPVField(field);
+                value = pvDataCreate->createPVField(field);
             value->deserialize(pbuffer, pcontrol);
         }
         else
@@ -188,7 +189,7 @@ void PVUnion::deserialize(ByteBuffer *pbuffer, DeserializableControl *pcontrol)
                 FieldConstPtr field = unionPtr->getField(selector);
                 // try to reuse existing field instance
                 if (!value.get() || *value->getField() != *field)
-                    value = getPVDataCreate()->createPVField(field);
+                    value = pvDataCreate->createPVField(field);
             }
             value->deserialize(pbuffer, pcontrol);
         }
@@ -217,4 +218,57 @@ std::ostream& PVUnion::dumpValue(std::ostream& o) const
  	return o;
 }
 
+void PVUnion::copy(const PVUnion& from)
+{
+    if(isImmutable())
+        throw std::invalid_argument("destination is immutable");
+
+    if(*getUnion() != *from.getUnion())
+        throw std::invalid_argument("union definitions do not match");
+
+    copyUnchecked(from);
+}
+
+void PVUnion::copyUnchecked(const PVUnion& from)
+{
+
+    PVFieldPtr fromValue = from.get();
+    if (from.getUnion()->isVariant())
+    {
+        if (fromValue.get() == 0)
+        {
+            set(PVField::shared_pointer());
+        }
+        else
+        {
+            PVFieldPtr toValue = get();
+            if (toValue.get() == 0 || *toValue->getField() != *fromValue->getField())
+            {
+                toValue = pvDataCreate->createPVField(fromValue->getField());
+                toValue->copyUnchecked(*fromValue);
+                set(toValue);
+            }
+            else
+            {
+                toValue->copyUnchecked(*fromValue);
+                postPut();
+            }
+        }
+    }
+    else
+    {
+        if (fromValue.get() == 0)
+        {
+            select(PVUnion::UNDEFINED_INDEX);
+        }
+        else
+        {
+            select(from.getSelectedIndex())->copyUnchecked(*fromValue);
+        }
+        postPut();
+    }
+
+}
+
+
 }}

src/factory/PVUnionArray.cpp

@@ -14,7 +14,6 @@
 
 #define epicsExportSharedSymbols
 #include <pv/pvData.h>
-#include <pv/convert.h>
 #include <pv/factory.h>
 #include <pv/serializeHelper.h>
 
@@ -178,7 +177,7 @@ void PVUnionArray::deserialize(ByteBuffer *pbuffer,
             data[i].reset();
         }
         else {
-            if(data[i].get()==NULL) {
+            if(data[i].get()==NULL || !data[i].unique()) {
                 data[i] = pvDataCreate->createPVUnion(punion);
             }
             data[i]->deserialize(pbuffer, pcontrol);
@@ -241,4 +240,24 @@ std::ostream& PVUnionArray::dumpValue(std::ostream& o, std::size_t index) const
     return o;
 }
 
+void PVUnionArray::copy(const PVUnionArray& from)
+{
+    if(isImmutable())
+        throw std::invalid_argument("destination is immutable");
+
+    if(*getUnionArray() != *from.getUnionArray())
+        throw std::invalid_argument("unionArray definitions do not match");
+
+    copyUnchecked(from);
+}
+
+void PVUnionArray::copyUnchecked(const PVUnionArray& from)
+{
+    if (this == &from)
+        return;
+
+    replace(from.view());
+}
+
+
 }}

src/factory/StandardField.cpp

@@ -89,9 +89,9 @@ StructureConstPtr StandardField::createProperties(string id,FieldConstPtr field,
         }
         if(type==structure) {
             StructureConstPtr structurePtr = static_pointer_cast<const Structure>(field);
-            StringArray names = structurePtr->getFieldNames();
+            StringArray const & names = structurePtr->getFieldNames();
             if(names.size()==2) {
-                FieldConstPtrArray fields = structurePtr->getFields();
+                FieldConstPtrArray const & fields = structurePtr->getFields();
                 FieldConstPtr first = fields[0];
                 FieldConstPtr second = fields[1];
                 string nameFirst = names[0];
@@ -554,7 +554,7 @@ StructureConstPtr StandardField::enumerated()
     fields[0] = fieldCreate->createScalar(pvInt);
     fields[1] = fieldCreate->createScalarArray(pvString);
     return fieldCreate->createStructure("enum_t",names,fields);
-    // NOTE: if this method is used to get NTEnum wihtout properties the ID will be wrong!
+    // NOTE: if this method is used to get NTEnum without properties the ID will be wrong!
 }
 
 StructureConstPtr StandardField::enumerated(string  const &properties)

src/factory/StandardPVField.cpp

@@ -14,7 +14,6 @@
 #include <pv/lock.h>
 #include <pv/pvIntrospect.h>
 #include <pv/pvData.h>
-#include <pv/convert.h>
 #include <pv/standardField.h>
 #include <pv/standardPVField.h>
 
@@ -67,11 +66,9 @@ PVStructurePtr StandardPVField::enumerated(StringArray const &choices)
 {
     StructureConstPtr field = standardField->enumerated();
     PVStructurePtr pvStructure = pvDataCreate->createPVStructure(field);
-    PVScalarArrayPtr pvScalarArray = pvStructure->getScalarArrayField(
-        "choices",pvString);
     PVStringArray::svector cdata(choices.size());
     std::copy(choices.begin(), choices.end(), cdata.begin());
-    static_cast<PVStringArray&>(*pvScalarArray).replace(freeze(cdata));
+    pvStructure->getSubField<PVStringArray>("choices")->replace(freeze(cdata));
     return pvStructure;
 }
 
@@ -80,11 +77,9 @@ PVStructurePtr StandardPVField::enumerated(
 {
     StructureConstPtr field = standardField->enumerated(properties);
     PVStructurePtr pvStructure =  pvDataCreate->createPVStructure(field);
-    PVScalarArrayPtr pvScalarArray = pvStructure->getScalarArrayField(
-        "value.choices",pvString);
     PVStringArray::svector cdata(choices.size());
     std::copy(choices.begin(), choices.end(), cdata.begin());
-    static_cast<PVStringArray&>(*pvScalarArray).replace(freeze(cdata));
+    pvStructure->getSubField<PVStringArray>("value.choices")->replace(freeze(cdata));
     return pvStructure;
 }
 

src/factory/printer.cpp

@@ -8,20 +8,10 @@
 #include <deque>
 
 #define epicsExportSharedSymbols
-#include <pv/printer.h>
+#include <pv/pvIntrospect.h>
 
 using std::string;
 
-namespace {
-
-void indentN(std::ostream& strm, size_t N)
-{
-    while(N--)
-        strm.put(' ');
-}
-
-}
-
 namespace epics { namespace pvData {
 
 namespace format
@@ -52,246 +42,4 @@ namespace format
 	}
 };
 
-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/misc/Makefile

@@ -22,7 +22,6 @@ 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

src/misc/bitSet.cpp

@@ -279,7 +279,8 @@ namespace epics { namespace pvData {
         uint32 inUse = (set1.wordsInUse < set2.wordsInUse) ? set1.wordsInUse : set2.wordsInUse;
 
         ensureCapacity(inUse);
-        wordsInUse = inUse;
+        if(inUse>wordsInUse)
+            wordsInUse = inUse;
 
         // Perform logical AND on words in common
         for (uint32 i = 0; i < inUse; i++)
@@ -322,12 +323,14 @@ namespace epics { namespace pvData {
     
         SerializeHelper::writeSize(len, buffer, flusher);
         flusher->ensureBuffer(len);
-    
-        for (uint32 i = 0; i < n - 1; i++)
+   
+        n = len / 8; 
+        for (uint32 i = 0; i < n; i++)
             buffer->putLong(words[i]);
-    
-        for (uint64 x = words[n - 1]; x != 0; x >>= 8)
-            buffer->putByte((int8) (x & 0xff));
+   
+        if (n < wordsInUse) 
+            for (uint64 x = words[wordsInUse - 1]; x != 0; x >>= 8)
+                buffer->putByte((int8) (x & 0xff));
     }
     
     void BitSet::deserialize(ByteBuffer* buffer, DeserializableControl* control) {
@@ -356,7 +359,7 @@ namespace epics { namespace pvData {
             words[j] = 0;
     
         for (uint32 remaining = (bytes - longs * 8), j = 0; j < remaining; j++)
-            words[i] |= (buffer->getByte() & 0xffL) << (8 * j);
+            words[i] |= (buffer->getByte() & 0xffLL) << (8 * j);
     
     }
     

src/misc/bitSet.h

@@ -24,16 +24,18 @@ namespace epics { namespace pvData {
     typedef std::tr1::shared_ptr<BitSet> BitSetPtr;
 
     /**
+     * @brief A vector of bits.
+     *
      * This class implements a vector of bits that grows as needed. Each
-     * component of the bit set has a {@code bool} value. The
-     * bits of a {@code BitSet} are indexed by nonnegative integers.
-     * Individual indexed bits can be examined, set, or cleared. One
-     * {@code BitSet} may be used to modify the contents of another
-     * {@code BitSet} through logical AND, logical inclusive OR, and
-     * logical exclusive OR operations.
+     * component of the bit set has a @c bool value. The bits of a
+     * @c BitSet are indexed by nonnegative integers. Individual
+     * indexed bits can be examined, set, or cleared. One @c BitSet may
+     * be used to modify the contents of another @c BitSet through
+     * logical AND, logical inclusive OR, and logical exclusive OR
+     * operations.
      *
      * <p>By default, all bits in the set initially have the value
-     * {@code false}.
+     * @c false.
      *
      * <p>Every bit set has a current size, which is the number of bits
      * of space currently in use by the bit set. Note that the size is
@@ -41,8 +43,8 @@ namespace epics { namespace pvData {
      * implementation. The length of a bit set relates to logical length
      * of a bit set and is defined independently of implementation.
      *
-     * <p>A {@code BitSet} is not safe for multithreaded use without
-     * external synchronization.
+     * <p>A @c BitSet is not safe for multithreaded use without external
+     * synchronization.
      *
      * Based on Java implementation.
      */
@@ -51,14 +53,14 @@ namespace epics { namespace pvData {
         POINTER_DEFINITIONS(BitSet);
         static BitSetPtr create(uint32 nbits);
         /**
-         * Creates a new bit set. All bits are initially {@code false}.
+         * Creates a new bit set. All bits are initially @c false.
          */
         BitSet();
 
         /**
          * Creates a bit set whose initial size is large enough to explicitly
-         * represent bits with indices in the range {@code 0} through
-         * {@code nbits-1}. All bits are initially {@code false}.
+         * represent bits with indices in the range @c 0 through
+         * @c nbits-1. All bits are initially @c false.
          *
          * @param  nbits the initial size of the bit set
          */
@@ -78,14 +80,14 @@ namespace epics { namespace pvData {
         void flip(uint32 bitIndex);
 
         /**
-         * Sets the bit at the specified index to {@code true}.
+         * Sets the bit at the specified index to @c true.
          *
          * @param  bitIndex a bit index
          */
         void set(uint32 bitIndex);
 
         /**
-         * Sets the bit specified by the index to {@code false}.
+         * Sets the bit specified by the index to @c false.
          *
          * @param  bitIndex the index of the bit to be cleared
          */
@@ -101,9 +103,8 @@ namespace epics { namespace pvData {
 
         /**
          * Returns the value of the bit with the specified index. The value
-         * is {@code true} if the bit with the index {@code bitIndex}
-         * is currently set in this {@code BitSet}; otherwise, the result
-         * is {@code false}.
+         * is @c true if the bit with the index @c bitIndex is currently
+         * set in this @c BitSet; otherwise, the result is @c false.
          *
          * @param  bitIndex   the bit index
          * @return the value of the bit with the specified index
@@ -111,16 +112,16 @@ namespace epics { namespace pvData {
         bool get(uint32 bitIndex) const;
 
         /**
-         * Sets all of the bits in this BitSet to {@code false}.
+         * Sets all of the bits in this BitSet to @c false.
          */
         void clear();
 
         /**
-         * Returns the index of the first bit that is set to {@code true}
-         * that occurs on or after the specified starting index. If no such
-         * bit exists then {@code -1} is returned.
+         * Returns the index of the first bit that is set to @c true that
+         * occurs on or after the specified starting index. If no such bit
+         * exists then @c -1 is returned.
          *
-         * <p>To iterate over the {@code true} bits in a {@code BitSet},
+         * <p>To iterate over the @c true bits in a @c BitSet,
          * use the following loop:
          *
          *  <pre> {@code
@@ -129,13 +130,13 @@ namespace epics { namespace pvData {
          * }}</pre>
          *
          * @param  fromIndex the index to start checking from (inclusive)
-         * @return the index of the next set bit, or {@code -1} if there
+         * @return the index of the next set bit, or @c -1 if there
          *         is no such bit
          */
         int32 nextSetBit(uint32 fromIndex) const;
 
         /**
-         * Returns the index of the first bit that is set to {@code false}
+         * Returns the index of the first bit that is set to @c false
          * that occurs on or after the specified starting index.
          *
          * @param  fromIndex the index to start checking from (inclusive)
@@ -144,23 +145,23 @@ namespace epics { namespace pvData {
         int32 nextClearBit(uint32 fromIndex) const;
 
         /**
-         * Returns true if this {@code BitSet} contains no bits that are set
-         * to {@code true}.
+         * Returns true if this @c BitSet contains no bits that are set
+         * to @c true.
          *
-         * @return indicating whether this {@code BitSet} is empty
+         * @return indicating whether this @c BitSet is empty
          */
         bool isEmpty() const;
 
         /**
-         * Returns the number of bits set to {@code true} in this {@code BitSet}.
+         * Returns the number of bits set to @c true in this @c BitSet.
          *
-         * @return the number of bits set to {@code true} in this {@code BitSet}
+         * @return the number of bits set to @c true in this @c BitSet
          */
         uint32 cardinality() const;
 
         /**
          * Returns the number of bits of space actually in use by this
-         * {@code BitSet} to represent bit values.
+         * @c BitSet to represent bit values.
          * The maximum element in the set is the size - 1st element.
          *
          * @return the number of bits currently in this bit set
@@ -170,9 +171,9 @@ namespace epics { namespace pvData {
         /**
          * Performs a logical <b>AND</b> of this target bit set with the
          * argument bit set. This bit set is modified so that each bit in it
-         * has the value {@code true} if and only if it both initially
-         * had the value {@code true} and the corresponding bit in the
-         * bit set argument also had the value {@code true}.
+         * has the value @c true if and only if it both initially
+         * had the value @c true and the corresponding bit in the
+         * bit set argument also had the value @c true.
          *
          * @param set a bit set
          */
@@ -181,9 +182,9 @@ namespace epics { namespace pvData {
         /**
          * Performs a logical <b>OR</b> of this bit set with the bit set
          * argument. This bit set is modified so that a bit in it has the
-         * value {@code true} if and only if it either already had the
-         * value {@code true} or the corresponding bit in the bit set
-         * argument has the value {@code true}.
+         * value @c true if and only if it either already had the
+         * value @c true or the corresponding bit in the bit set
+         * argument has the value @c true.
          *
          * @param set a bit set
          */
@@ -192,13 +193,13 @@ namespace epics { namespace pvData {
         /**
          * Performs a logical <b>XOR</b> of this bit set with the bit set
          * argument. This bit set is modified so that a bit in it has the
-         * value {@code true} if and only if one of the following
+         * value @c true if and only if one of the following
          * statements holds:
          * <ul>
-         * <li>The bit initially has the value {@code true}, and the
-         *     corresponding bit in the argument has the value {@code false}.
-         * <li>The bit initially has the value {@code false}, and the
-         *     corresponding bit in the argument has the value {@code true}.
+         * <li>The bit initially has the value @c true, and the
+         *     corresponding bit in the argument has the value @c false.
+         * <li>The bit initially has the value @c false, and the
+         *     corresponding bit in the argument has the value @c true.
          * </ul>
          *
          * @param  set a bit set
@@ -206,7 +207,7 @@ namespace epics { namespace pvData {
         BitSet& operator^=(const BitSet& set);
 
         /**
-          * Assigment operator.
+          * Assignment operator.
           */
         BitSet& operator=(const BitSet &set);
 

src/misc/byteBuffer.h

@@ -144,6 +144,24 @@ inline int64 swap(int64 val)
     return swap64(val);
 }
 
+template<>
+inline uint16 swap(uint16 val)
+{
+    return swap16(val);
+}
+
+template<>
+inline uint32 swap(uint32 val)
+{
+    return swap32(val);
+}
+
+template<>
+inline uint64 swap(uint64 val)
+{
+    return swap64(val);
+}
+
 template<>
 inline float swap(float val)
 {
@@ -188,8 +206,9 @@ inline double swap(double val)
 #endif
 
 /**
- * This class implements {@code Bytebuffer} that is like the {@code java.nio.ByteBuffer}.
- * <p>A {@code BitSet} is not safe for multithreaded use without
+ * @brief This class implements a Bytebuffer that is like the java.nio.ByteBuffer.
+ * 
+ * <p>A @c BitSet is not safe for multithreaded use without
  * external synchronization.
  *
  * Based on Java implementation.
@@ -354,7 +373,7 @@ public:
     template<typename T>
     inline void put(std::size_t index, T value);
     /**
-     * Get the new object from  the byte buffer. The item MUST have type {@code T}.
+     * Get the new object from  the byte buffer. The item MUST have type @c T.
      * The position is adjusted based on the type.
      *
      * @return The object.
@@ -368,7 +387,7 @@ public:
 #endif
     /**
      * Get the new object from  the byte buffer at the specified index.
-     * The item MUST have type {@code T}.
+     * The item MUST have type @c T.
      * The position is adjusted based on the type.
      *
      * @param index The location in the byte buffer.
@@ -380,9 +399,9 @@ public:
      * Put a sub-array of bytes into the byte buffer.
      * The position is increased by the count.
      *
-     * @param  src    The source array.
-     * @param  offset The starting position within src.
-     * @param  count  The number of bytes to put into the byte buffer,
+     * @param  src        The source array.
+     * @param  src_offset The starting position within src.
+     * @param  count      The number of bytes to put into the byte buffer,
      */
     inline void put(const char* src, std::size_t src_offset, std::size_t count) {
         //if(count>getRemaining()) THROW_BASE_EXCEPTION("buffer overflow");
@@ -393,9 +412,9 @@ public:
      * Get a sub-array of bytes from the byte buffer.
      * The position is increased by the count.
      *
-     * @param  dest    The destination array.
-     * @param  offset The starting position within src.
-     * @param  count  The number of bytes to put into the byte buffer,
+     * @param  dest        The destination array.
+     * @param  dest_offset The starting position within src.
+     * @param  count       The number of bytes to put into the byte buffer.
      */
     inline void get(char* dest, std::size_t dest_offset, std::size_t count) {
         //if(count>getRemaining()) THROW_BASE_EXCEPTION("buffer overflow");
@@ -403,7 +422,7 @@ public:
         _position += count;
     }
     /**
-     * Put an array of type {@code T} into the byte buffer.
+     * Put an array of type @c T into the byte buffer.
      * The position is adjusted.
      *
      * @param  values The input array.
@@ -412,7 +431,7 @@ public:
     template<typename T>
     inline void putArray(const T* values, std::size_t count);
     /**
-     * Get an array of type {@code T} from the byte buffer.
+     * Get an array of type @c T from the byte buffer.
      * The position is adjusted.
      *
      * @param  values The destination array.
@@ -618,7 +637,7 @@ public:
     /**
      * Get a boolean value from the byte buffer at the specified index.
      *
-     * @param  double The offset in the byte buffer.
+     * @param  index The offset in the byte buffer.
      * @return The value.
      */
     inline double getDouble (std::size_t  index) { return get<double>(index); }
@@ -695,7 +714,7 @@ private:
         }
         else
         {
-            // NOTE: this check and branching does not always payoff
+            // NOTE: this check and branching does not always pay off
             if (ADAPTIVE_ACCESS && is_aligned(_position, sizeof(T)))
             {
                 *((T*)_position) = value;
@@ -738,12 +757,12 @@ private:
 
         if (UNALIGNED_ACCESS)
         {
-            // NOTE: some CPU handle unaligned access preety good (e.g. x86)
+            // NOTE: some CPU handle unaligned access pretty good (e.g. x86)
             *((T*)(_buffer + index)) = value;
         }
         else
         {
-            // NOTE: this check and branching does not always payoff
+            // NOTE: this check and branching does not always pay off
             if (ADAPTIVE_ACCESS && is_aligned(_position, sizeof(T)))
             {
                 *((T*)(_buffer + index)) = value;
@@ -786,13 +805,13 @@ private:
 
         if (UNALIGNED_ACCESS)
         {
-            // NOTE: some CPU handle unaligned access preety good (e.g. x86)
+            // NOTE: some CPU handle unaligned access pretty good (e.g. x86)
             value = *((T*)_position);
             _position += sizeof(T);
         }
         else
         {
-            // NOTE: this check and branching does not always payoff
+            // NOTE: this check and branching does not always pay off
             if (ADAPTIVE_ACCESS && is_aligned(_position, sizeof(T)))
             {
                 value = *((T*)_position);
@@ -838,12 +857,12 @@ private:
 
         if (UNALIGNED_ACCESS)
         {
-            // NOTE: some CPU handle unaligned access preety good (e.g. x86)
+            // NOTE: some CPU handle unaligned access pretty good (e.g. x86)
             value = *((T*)(_buffer + index));
         }
         else
         {
-            // NOTE: this check and branching does not always payoff
+            // NOTE: this check and branching does not always pay off
             if (ADAPTIVE_ACCESS && is_aligned(_position, sizeof(T)))
             {
                 value = *((T*)(_buffer + index));
@@ -890,7 +909,7 @@ private:
         memcpy(_position, values, n);
         _position += n;
 
-        // ... so that we can be fast changing endianess
+        // ... so that we can be fast changing endianness
         if (ENDIANESS_SUPPORT && reverse<T>())
         {
             for (std::size_t i = 0; i < count; i++)
@@ -918,7 +937,7 @@ private:
         memcpy(values, _position, n);
         _position += n;
 
-        // ... so that we can be fast changing endianess
+        // ... so that we can be fast changing endianness
         if (ENDIANESS_SUPPORT && reverse<T>())
         {
             for (std::size_t i = 0; i < count; i++)

src/misc/destroyable.h

@@ -18,7 +18,8 @@ namespace epics { namespace pvData {
 
 
         /**
-         * Instance declaring destroy method.
+         * @brief Instance declaring destroy method.
+         * 
          * @author mse
          */
         class epicsShareClass Destroyable {

src/misc/epicsException.h

@@ -202,13 +202,26 @@ do { \
 #define THROW_EXCEPTION2(E,A) do{throw (E)(A);}while(0)
 
 #endif // THROW_EXCEPTION_COMPAT
-
+/**
+ * @brief Base for pvData exceptions.
+ *
+ */
 class epicsShareClass BaseException : public std::logic_error {
 public:
+    /**
+     * Constructor.
+     */
     explicit BaseException(const std::string msg) : std::logic_error(msg) {}
 
+    /**
+     * Destructor.
+     */
     virtual ~BaseException() throw(){};
 
+    /**
+     * 
+     * Reason for excepton.
+     */
     virtual const char* what() const throw();
 
 private:

src/misc/event.cpp

@@ -38,8 +38,7 @@ Event::~Event() {
 
 
 Event::Event(bool full)
-: id(epicsEventCreate(full?epicsEventFull : epicsEventEmpty)),
-  alreadyOn("already on list")
+: id(epicsEventCreate(full?epicsEventFull : epicsEventEmpty))
 {
 }
 

src/misc/event.h

@@ -35,18 +35,44 @@ namespace epics { namespace pvData {
 class Event;
 typedef std::tr1::shared_ptr<Event> EventPtr;
 
+/**
+ * @brief C++ wrapper for epicsEvent from EPICS base.
+ *
+ */
 class epicsShareClass Event {
 public:
     POINTER_DEFINITIONS(Event);
+    /**
+     * Constructor
+     */
     explicit Event(bool = false);
+    /**
+     * Destructor.
+     */
     ~Event();
+    /**
+     * Signal the event i.e. ensures that the next or current call to wait completes. 
+     */
     void signal();
+    /**
+     * wait 
+     * @return (false,true) if (some error, event signaled).
+     * The next wait or tryWait will clear signal.
+     */
     bool wait (); /* blocks until full */
+    /**
+     * wait for up to timeOut seconds.
+     * @param timeOut max number of seconds to wait
+     * @return (false, true) if (timeout or error, event signaled).
+     */
     bool wait ( double timeOut ); /* false if empty at time out */
+    /**
+     * See if a signal has been called.
+     * @return (false, true) if (timeout or error, event signaled).
+     */
     bool tryWait (); /* false if empty */
 private:
     epicsEventId id;
-    std::string alreadyOn;
 };
 
 }}

src/misc/executor.h

@@ -27,22 +27,56 @@ class Executor;
 typedef std::tr1::shared_ptr<Command> CommandPtr;
 typedef std::tr1::shared_ptr<Executor> ExecutorPtr;
 
+/**
+ * @brief A command to be called by Executor
+ *
+ */
 class epicsShareClass Command {
 public:
     POINTER_DEFINITIONS(Command);
+    /**
+     * 
+     * Destructor
+     */
     virtual ~Command(){}
+    /**
+     * 
+     * The command that is executed.
+     */
     virtual void command() = 0;
 private:
     CommandPtr next;
     friend class Executor;
 };
 
+/**
+ * @brief A class that executes commands.
+ *
+ */
 class epicsShareClass Executor : public Runnable{
 public:
     POINTER_DEFINITIONS(Executor);
+    /**
+     * Constructor
+     *
+     * @param threadName name for the executor thread.
+     * @param priority The thread priority.
+     */
     Executor(std::string const & threadName,ThreadPriority priority);
+    /**
+     * Destructor
+     */
     ~Executor();
-    void execute(CommandPtr const &node);
+    /**
+     * 
+     * Request to execute a command.
+     * @param command A shared pointer to the command instance.
+     */
+    void execute(CommandPtr const &command);
+    /**
+     * 
+     * The thread run method.
+     */
     virtual void run();
 private:
     CommandPtr head;

src/misc/lock.h

@@ -38,12 +38,30 @@ namespace epics { namespace pvData {
 
 typedef epicsMutex Mutex;
 
+/**
+ * @brief A lock for multithreading
+ *
+ * This is based on item 14 of 
+ *  * Effective C++, Third Edition, Scott Meyers
+ */
 class epicsShareClass Lock : private NoDefaultMethods {
 public:
+    /**
+     * Constructor
+     * @param m The mutex for the facility being locked.
+     */
     explicit Lock(Mutex &m)
     : mutexPtr(m), locked(true)
     { mutexPtr.lock();}
+    /**
+     * Destructor
+     * Note that destructor does an automatic unlock.
+     */
     ~Lock(){unlock();}
+    /**
+     * Take the lock
+     * Recursive locks are supported but each lock must be matched with an unlock.
+     */
     void lock()
     {
         if(!locked) 
@@ -52,6 +70,9 @@ public:
             locked = true;
         }
     }
+    /** 
+     * release the lock.
+     */
     void unlock()
     {
         if(locked)
@@ -60,6 +81,10 @@ public:
             locked=false;
         }
     }
+    /** 
+     * If lock is not held take the lock.
+     * @return (false,true) if caller (does not have, has) the lock.
+     */
     bool tryLock()
     {
          if(locked) return true;
@@ -69,6 +94,10 @@ public:
          }
          return false;
     }
+    /** 
+     * See if caller has the lock,
+     * @return (false,true) if caller (does not have, has) the lock.
+     */
     bool ownsLock() const{return locked;}
 private:
     Mutex &mutexPtr;

src/misc/messageQueue.h

@@ -28,10 +28,26 @@ typedef std::tr1::shared_ptr<MessageNode> MessageNodePtr;
 typedef std::vector<MessageNodePtr> MessageNodePtrArray;
 typedef std::tr1::shared_ptr<MessageQueue> MessageQueuePtr;
 
+/**
+ * @brief A node that can be put on a MessageQueue.
+ *
+ */
 class epicsShareClass MessageNode {
 public:
+    /**
+     * Constructor
+     */
     MessageNode();
+    /**
+     * 
+     * Get the message value.
+     * @return The message value.
+     */
     std::string getMessage() const;
+    /** 
+     * Get the message type.
+     * @return The message type which is defined in Requester.
+     */
     MessageType getMessageType() const;
 private:
     std::string message;
@@ -39,19 +55,65 @@ private:
     friend class MessageQueue;
 };
 
+/**
+ * @brief A bounded queue for messages.
+ *
+ *
+ */
 class epicsShareClass MessageQueue : public Queue<MessageNode> {
 public:
     POINTER_DEFINITIONS(MessageQueue);
+    /**
+     * Factory method to create a MessageQueue.
+     * @param size The number of MessageNodes in the queue.
+     * @return shared_ptr to MessageQueue.
+     */
     static MessageQueuePtr create(int size);
+    /**
+     * Constructor
+     * @param nodeArray an array of shared_ptr to MessageNodes,
+     */
     MessageQueue(MessageNodePtrArray &nodeArray);
+    /**
+     * Destructor
+     */
     virtual ~MessageQueue();
+    /**
+     * get the next MessageNode of the queue.
+     * @return A shared_ptr to the MessageNode.
+     * This will be a null pointer if queue is empty.
+     * If get is successful then release for this MessageNode
+     * must be called before another get can be issued.
+     */
     MessageNodePtr &get();
-    // must call release before next get
+    /**
+     * Release the MessageNode that was returned by the previous call to get.
+     */
     void release();
-    // return (false,true) if message (was not, was) put into queue
+    /**
+     * 
+     * put a message into the message queue
+     * @param message The message string.
+     * @param messageType The message type as defined in Requester,
+     * @param replaceLast If true and queue is full then replace.
+     * @return (false,true) if a message (was not, was) put in queiue.
+     */
     bool put(std::string message,MessageType messageType,bool replaceLast);
+    /**
+     * Is queue empty?
+     * @return (false,true) if (is not, is) empty.
+     */
     bool isEmpty() ;
+    /**
+     * Is queue full?
+     * @return (false,true) if (is not, is) full.
+     */
     bool isFull() ;
+    /**
+     * 
+     * Clear number of times queue was overrun and return the number
+     * of times the queue was overrun.
+     */
     int getClearOverrun();
 private:
     MessageNodePtr nullNode;

src/misc/noDefaultMethods.h

@@ -17,17 +17,26 @@ namespace epics { namespace pvData {
  * Effective C++, Third Edition, Scott Meyers
  */
 
-
-    class epicsShareClass NoDefaultMethods {
-    protected:
-    // allow by derived objects
+/**
+ * @brief Base class for not allowing default methods.
+ *
+ * Note that copy constructor a copy methods are declared private.
+ */
+class epicsShareClass NoDefaultMethods {
+protected:
+    /**
+     * Constructor
+     */
     NoDefaultMethods(){};
+    /**
+     * Destructor
+     */
     ~NoDefaultMethods(){}
     private:
-    // do not implment
+    // do not implement
     NoDefaultMethods(const NoDefaultMethods&);
     NoDefaultMethods & operator=(const NoDefaultMethods &);
-    };
+};
 
 }}
 #endif  /* NO_DEFAULT_METHODS_H */

src/misc/queue.h

@@ -18,6 +18,12 @@
 
 namespace epics { namespace pvData { 
 
+/**
+ * @brief Template class for a bounded queue.
+ *
+ * An instance can make a queueElement be any class desired
+ * but must create a std::vector of shared_ptr to queueElements.
+ */
 template <typename T>
 class Queue
 {
@@ -25,15 +31,58 @@ public:
     POINTER_DEFINITIONS(Queue);
     typedef std::tr1::shared_ptr<T> queueElementPtr;
     typedef std::vector<queueElementPtr> queueElementPtrArray;
-    Queue(queueElementPtrArray &);
+    /**
+     * Constructor
+     * @param elementArray The vector of shared_ptr to queue elements.
+     */
+    Queue(queueElementPtrArray & elementArray);
+    /**
+     * Destructor
+     */
     virtual ~Queue();
+    /**
+     * Clear the queue.
+     */
     void clear();
+    /** 
+     * get the capacity of the queue, i. e. number of queue elements,
+     * @return The capacity.
+     */
     int capacity();
+    /**
+     * Get the number of free elements in the queue.
+     * @return The number.
+     */
     int getNumberFree();
+    /**
+     * Get the number of used elements in the queue.
+     * This is the number that have been setUsed but not released.
+     * @return The number.
+     */
     int getNumberUsed();
+    /**
+     * Get the next free element.
+     * @return a shared_ptr to the queue element.
+     * This is null if queue was full.
+     */
     queueElementPtr & getFree();
+    /**
+     * Set the element returned by getFree as used.
+     * Until this is called getUsed will not return it.
+     * @param element The element. It must be the element returned
+     * by the most recent call to getUsed.
+     */
     void setUsed(queueElementPtr const &element);
+    /**
+     * Get the oldest used element;
+     * @return a shared_ptr to the queue element.
+     * This is null if no used element is available.`
+     */
     queueElementPtr & getUsed();
+    /**
+     * Release the element obtained by the most recent call to getUsed.
+     * @param element The element.
+     */
     void releaseUsed(queueElementPtr const &element);
 private:
     queueElementPtr nullElement;

src/misc/requester.h

@@ -28,11 +28,43 @@ enum MessageType {
 
 epicsShareExtern std::string getMessageTypeName(MessageType messageType);
 
+/**
+ *  @brief Callback class for passing messages to a requester.
+ *
+ *  This is used by many other classes and also extended by other classes.
+ *  The request is passed a message and a messageType.
+ *  A message is just a string and a messageType is:
+@code
+enum MessageType {
+   infoMessage,warningMessage,errorMessage,fatalErrorMessage
+};
+@endcode
+ *
+ */
+
 class epicsShareClass Requester {
 public:
     POINTER_DEFINITIONS(Requester);
+    /**
+     * Destructor
+     */
     virtual ~Requester(){}
+    /**
+     * The requester must have a name.
+     * @return The requester's name.
+     */
     virtual std::string getRequesterName() = 0;
+    /**
+     * 
+     * A message for the requester.
+     * @param message The message.
+     * @param messageType The type of message:
+     @code
+     enum MessageType {
+        infoMessage,warningMessage,errorMessage,fatalErrorMessage
+     };
+     @endcode
+     */
     virtual void message(std::string const & message,MessageType messageType) = 0;
 };
 

src/misc/serialize.h

@@ -25,52 +25,184 @@ namespace epics { namespace pvData {
     class BitSet;
     class Field;
 
+    /**
+     * @brief Callback class for serialization.
+     *
+     * This must be provided by code that calls serialize.
+     */
     class epicsShareClass SerializableControl {
     public:
+        /**
+         * Destructor.
+         */
         virtual ~SerializableControl(){}
+        /**
+         * Done with this buffer. Flush it.
+         */
         virtual void flushSerializeBuffer() =0;
+        /**
+         * Make sure buffer has at least size bytes remaining.
+         * If not flush existing buffer and provide a new one.
+         * @param size The number of bytes.
+         */
         virtual void ensureBuffer(std::size_t size) =0;
+        /**
+         * Add pad bytes to buffer.
+         * @param alignment alignment required.
+         */
         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;
+        /**
+         * method for serializing array data.
+         * This should only be used for arrays of primitive types.
+         * i. e. boolean,byte,...,double.
+         * It can not be called for string, structure, or union arrays.
+         * @param existingBuffer the existing buffer from the caller.
+         * @param toSerialize location of data to be put into buffer.
+         * @param elementCount number of elements.
+         * @param elementSize element size.
+         */
+        virtual bool directSerialize(
+            ByteBuffer *existingBuffer,
+            const char* toSerialize,
+            std::size_t elementCount,
+            std::size_t elementSize) = 0;
+        /**
+         * serialize via cache
+         * @param field instance to be serialized
+         * @param buffer buffer to be serialized to
+         */
+        virtual void cachedSerialize(
+            std::tr1::shared_ptr<const Field> const & field,
+            ByteBuffer* buffer) = 0;
     };
 
+    /**
+     * @brief Callback class for deserialization.
+     *
+     * This must be provided by code that calls deserialize.
+     */
     class epicsShareClass DeserializableControl {
     public:
+        /**
+         * Destructor.
+         */
         virtual ~DeserializableControl(){}
+        /**
+         * Helper method.
+         * Ensures specified size of bytes, provides it if necessary.
+         * @param size The number of bytes.
+         */
         virtual void ensureData(std::size_t size) =0;
+        /**
+         * Align buffer.
+         * Note that this takes care only current buffer alignment.
+         * If streaming protocol is used,
+         * care must be taken that entire stream is aligned.
+         * @param alignment size in bytes, must be power of two.
+         */
         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;
+        /**
+         * method for deserializing array data.
+         * This should only be used for arrays of primitive types.
+         * i. e. boolean,byte,...,double.
+         * It can not be called for string, structure, or union arrays.
+         * @param existingBuffer the existing buffer from the caller.
+         * @param deserializeTo location of data.
+         * @param elementCount number of elements.
+         * @param elementSize element size.
+         */
+        virtual bool directDeserialize(
+            ByteBuffer *existingBuffer,
+            char* deserializeTo,
+            std::size_t elementCount,
+            std::size_t elementSize) = 0;
+        /**
+         * deserialize via cache
+         * @param buffer buffer to be deserialized from
+         */
+        virtual std::tr1::shared_ptr<const Field> cachedDeserialize(
+            ByteBuffer* buffer) = 0;
     };
 
+    /**
+     * @brief Base class for serialization.
+     *
+     */
     class epicsShareClass Serializable {
     public:
+        /**
+         * Destructor.
+         */
         virtual ~Serializable(){}
+        /**
+         * Serialize field into given buffer.
+         * @param buffer serialization buffer.
+         * @param flusher flush interface.
+         */
         virtual void serialize(ByteBuffer *buffer,
             SerializableControl *flusher) const = 0;
+	/**
+         * Deserialize buffer.
+         * @param buffer serialization buffer.
+         * @param flusher deserialization control.
+         */
         virtual void deserialize(ByteBuffer *buffer,
             DeserializableControl *flusher) = 0;
     };
 
+
+    /**
+     * @brief Class for serializing bitSets.
+     *
+     */
     class epicsShareClass BitSetSerializable {
     public:
+        /**
+         * Destructor.
+         */
         virtual ~BitSetSerializable(){}
+        /**
+         * Serialize field into given buffer.
+         * @param buffer serialization buffer.
+         * @param flusher flush interface.
+         * @param bitSet The bitSet to serialize.
+         */
         virtual void serialize(ByteBuffer *buffer,
             SerializableControl *flusher,BitSet *bitSet) const = 0;
+	/**
+         * Deserialize buffer.
+         * @param buffer serialization buffer.
+         * @param flusher deserialization control.
+         * @param bitSet The bitSet to deserialize.
+         */
         virtual void deserialize(ByteBuffer *buffer,
             DeserializableControl *flusher,BitSet *bitSet) = 0;
     };
 
 
+    /**
+     * @brief Class for serializing arrays.
+     *
+     */
     class epicsShareClass SerializableArray : public virtual Serializable {
     public:
+        /**
+         * Destructor.
+         */
         virtual ~SerializableArray(){}
         using Serializable::serialize;
-        virtual void serialize(ByteBuffer *buffer,
-            SerializableControl *flusher, std::size_t offset, std::size_t count) const = 0;
+        /**
+         * Serialize field into given buffer.
+         * @param buffer serialization buffer.
+         * @param flusher flush interface.
+         * @param offset offset in elements.
+         * @param count number of elements
+         */
+        virtual void serialize(
+            ByteBuffer *buffer,
+            SerializableControl *flusher,
+            std::size_t offset,
+            std::size_t count) const = 0;
     };
 
 }}

src/misc/serializeHelper.cpp

@@ -7,7 +7,7 @@
  * serializeHelper.cpp
  *
  *  Created on: Oct 22, 2010
- *      Author: Miha vitorovic
+ *      Author: Miha Vitorovic
  */
 
 #include <algorithm>

src/misc/serializeHelper.h

@@ -23,23 +23,33 @@
 namespace epics {
     namespace pvData {
 
+        /**
+         * @brief Serialization helper.
+         *
+         */
         class epicsShareClass SerializeHelper : public NoDefaultMethods {
         public:
 
             /**
-             * Serialize array size.
+             * Serialize the specified array size into the specified
+             * buffer, flushing when necessary.
+             * The specified SerializableControl manages any flushing
+             * required.
              *
              * @param[in] s size to encode
              * @param[in] buffer serialization buffer
-             * @param[in] flusher flusher
+             * @param[in] flusher SerializableControl to manage the flushing
              */
             static void writeSize(std::size_t s, ByteBuffer* buffer,
                     SerializableControl* flusher);
 
             /**
              * Deserialize array size.
+             * The specified DeserializableControl ensures
+             * sufficient bytes are available.
              *
              * @param[in] buffer deserialization buffer.
+             * @param[in] control the DeserializableControl.
              * @returns array size.
              */
             static std::size_t readSize(ByteBuffer* buffer,
@@ -59,7 +69,7 @@ namespace epics {
              * std::string serialization helper method.
              *
              * @param[in] value std::string to serialize
-             * @param[in] offset start of the substring in {@code value}
+             * @param[in] offset start of the substring in value
              * @param[in] count the number of characters to write
              * @param[in] buffer serialization buffer
              * @param[in] flusher flusher

src/misc/sharedVector.h

@@ -230,7 +230,7 @@ namespace detail {
     };
 }
 
-/** @brief A holder for a contigious piece of memory.
+/** @brief A holder for a contiguous piece of memory.
  *
  * Data is shared, but offset and length are not.
  * This allows one vector to have access to only a
@@ -427,7 +427,7 @@ public:
      *  owner of the data array.
      *
      * If a copy is needed, memory is allocated with new[].  If this is
-     * not desireable then do something like the following.
+     * not desirable then do something like the following.
      @code
        shared_vector<E> original(...);
 
@@ -527,9 +527,12 @@ public:
 
 };
 
-//! Specialization for storing untyped pointers
-//! Does not allow access or iteration of contents
-//! other than as void* or const void*
+/**
+ * @brief Specialization for storing untyped pointers.
+ *
+ * Does not allow access or iteration of contents
+ * other than as void* or const void*
+ */
 template<typename E>
 class shared_vector<E, typename meta::is_void<E>::type >
     : public detail::shared_vector_base<E>
@@ -861,7 +864,7 @@ std::ostream& operator<<(std::ostream& strm, const epics::pvData::shared_vector<
  * The copy constructor and assignment operator allow implicit
  * casting from type 'shared_vector<T>' to 'shared_vector<const T>'.
  *
- * To faciliate safe modification the methods unique() and
+ * To facilitate safe modification the methods unique() and
  * make_unique() are provided.
  *
  * The slice() method selects a sub-set of the shared_vector.

src/misc/status.h

@@ -21,7 +21,9 @@
 namespace epics { namespace pvData { 
 
         /**
-         * Status.
+         * @brief Status.
+         *
+         * This is a class for returning status to clients.
          * @author mse
          */
         class epicsShareClass Status : public epics::pvData::Serializable {

src/misc/thread.h

@@ -47,9 +47,28 @@ typedef std::tr1::shared_ptr<epicsThread> EpicsThreadPtr;
 
 typedef epicsThreadRunable Runnable;
 
+/**
+ * @brief C++ wrapper for epicsThread from EPICS base.
+ *
+ */
 class epicsShareClass Thread : public epicsThread, private NoDefaultMethods {
 public:
 
+    /**
+     * 
+     * Constructor
+     * @param name thread name.
+     * @param priority priority is one of:
+     @code
+     enum ThreadPriority {
+        lowestPriority, lowerPriority, lowPriority,
+        middlePriority,
+        highPriority, higherPriority, highestPriority
+     };
+     @endcode
+     * @param runnable this is a c function
+     * @param stkcls stack size as specified by epicsThreadStackSizeClass
+     */
     Thread(std::string name,
            ThreadPriority priority,
            Runnable *runnable,
@@ -62,6 +81,21 @@ public:
         this->start();
     }
 
+    /**
+     * 
+     * Constructor
+     * @param runnable this is a c function
+     * @name thread name.
+     * @param stkcls stack size as specified by epicsThreadStackSizeClass
+     * @param priority priority is one of:
+     @code
+     enum ThreadPriority {
+        lowestPriority, lowerPriority, lowPriority,
+        middlePriority,
+        highPriority, higherPriority, highestPriority
+     };
+     @endcode
+     */
     Thread(Runnable &runnable,
            std::string name,
            unsigned int stksize,
@@ -74,6 +108,9 @@ public:
         this->start();
     }
 
+    /**
+     * Destructor
+     */
     ~Thread()
     {
         this->exitWait();

src/misc/timeFunction.h

@@ -21,19 +21,46 @@ class TimeFunction;
 typedef std::tr1::shared_ptr<TimeFunctionRequester> TimeFunctionRequesterPtr;
 typedef std::tr1::shared_ptr<TimeFunction> TimeFunctionPtr;
 
+/** 
+ * @brief Class that must be implemented by timeFunction requester.
+ *
+ */
 class epicsShareClass TimeFunctionRequester {
 public:
     POINTER_DEFINITIONS(TimeFunctionRequester);
+    /** 
+     * Destructor
+     */
     virtual ~TimeFunctionRequester(){}
+    /**
+     *  function to be timed.
+     *  It will get called multiple times.
+     */
     virtual void function() = 0;
 };
 
 
+/** 
+ * @brief Class for measuring time it takes to execute a function.
+ *
+ */
 class epicsShareClass TimeFunction {
 public:
     POINTER_DEFINITIONS(TimeFunction);
+    /**
+     * Constructor
+     * @param requester The class that has a function method.
+     */
     TimeFunction(TimeFunctionRequesterPtr const & requester);
+    /**
+     * Destructor
+     */
     ~TimeFunction();
+    /**
+     * Time the function.
+     * @return the time in seconds to execute the function.
+     * Note that the function may be called many times.
+     */
     double timeCall();
 private:
     TimeFunctionRequesterPtr requester;

src/misc/timer.cpp

@@ -14,9 +14,9 @@
 
 #include <stdexcept>
 #include <string>
+#include <iostream>
 
 #define epicsExportSharedSymbols
-#include <pv/convert.h>
 #include <pv/timer.h>
 
 using std::string;

src/misc/timer.h

@@ -32,12 +32,28 @@ class Timer;
 typedef std::tr1::shared_ptr<TimerCallback> TimerCallbackPtr;
 typedef std::tr1::shared_ptr<Timer> TimerPtr;
 
+/**
+ * @brief Class that must be implemented by code that makes Timer requests.
+ *
+ */
 class epicsShareClass TimerCallback {
 public:
     POINTER_DEFINITIONS(TimerCallback);
+    /**
+     * Constructor
+     */
     TimerCallback();
+    /**
+     * Destructor
+     */
     virtual ~TimerCallback(){}
+    /**
+     * The method that is called when a timer expires.
+     */
     virtual void callback() = 0;
+    /**
+     * The timer has stopped.
+     */
     virtual void timerStopped() = 0;
 private:
     TimerCallbackPtr next;
@@ -47,22 +63,60 @@ private:
     friend class Timer;
 };
 
+/**
+ * @brief Support for delayed or periodic callback execution.
+ *
+ */
 class epicsShareClass Timer : public Runnable {
 public:
     POINTER_DEFINITIONS(Timer);
+    /**
+     * Constructor
+     * @param threadName name for the timer thread.
+     * @param priority thread priority
+     */
     Timer(std::string threadName, ThreadPriority priority);
+    /**
+     * Destructor
+     */
     virtual ~Timer();
+    /**
+     * The thread run method. This is called automatically.
+     */
     virtual void run();
+    /**
+     * schedule a callback after a delay.
+     * @param timerCallback the timerCallback instance.
+     * @param delay number of seconds before calling callback.
+     */
     void scheduleAfterDelay(
         TimerCallbackPtr const &timerCallback,
         double delay);
+    /**
+     * schedule a periodic callback.`
+     * @param timerCallback the timerCallback instance.
+     * @param delay number of seconds before first callback.
+     * @param period time in seconds between each callback.
+     */
     void schedulePeriodic(
         TimerCallbackPtr const &timerCallback,
         double delay,
         double period);
+    /**
+     * cancel a callback.
+     * @param timerCallback the timerCallback to cancel.
+     */
     void cancel(TimerCallbackPtr const &timerCallback);
+    /**
+     * Is the callback scheduled to be called?
+     * @param timerCallback the timerCallback.
+     * @return (false,true) if (not, is) scheduled.
+     */
     bool isScheduled(TimerCallbackPtr const &timerCallback);
-
+    /**
+     * show the elements in the timer queue.
+     * @param o The output stream for the output
+     */
     void dump(std::ostream& o);
 
 private:

src/misc/typeCast.h

@@ -59,7 +59,7 @@ namespace detail {
         typedef T return_t;
         static FORCE_INLINE return_t op(const T& i) { return i; }
     };
-    // trick std::ostream into treating char's as numbers
+    // trick std::ostream into treating chars as numbers
     // by promoting char to int
     template<>
     struct print_convolute<int8> {
@@ -142,7 +142,7 @@ namespace detail {
  * - float -> double
  *
  * Conversions where out of range inputs always produce
- * a defined result, but may not be reversable.
+ * a defined result, but may not be reversible.
  *
  * - double -> float.  When abs(value) is outside the range
  *    [FLT_MIN, FLT_MAX] the value is clipped to FLT_MIN or FLT_MAX

src/monitor/monitor.h

@@ -30,6 +30,8 @@ typedef std::tr1::shared_ptr<Monitor> MonitorPtr;
 
 
 /**
+ * @brief An element for a monitorQueue.
+ *
  * Class instance representing monitor element.
  * @author mrk
  */
@@ -48,7 +50,9 @@ class epicsShareClass MonitorElement {
 };
 
 /**
- * Interface for Monitor.
+ * @brief Monitor changes to fields of a pvStructure.
+ *
+ * This is used by pvAccess to implement monitors.
  * @author mrk
  */
 class epicsShareClass Monitor : public Destroyable{
@@ -73,6 +77,7 @@ class epicsShareClass Monitor : public Destroyable{
     virtual MonitorElementPtr poll() = 0;
     /**
      * Release a MonitorElement that was returned by poll.
+     * A poll() must be called after the release() to check the presence of any modified data.
      * @param monitorElement
      */
     virtual void release(MonitorElementPtr const & monitorElement) = 0;
@@ -80,6 +85,8 @@ class epicsShareClass Monitor : public Destroyable{
 
 
 /**
+ * @brief Callback implemented by monitor clients.
+ *
  * Requester for ChannelMonitor.
  * @author mrk
  */

src/monitor/monitorPlugin.h

@@ -20,32 +20,25 @@
 
 namespace epics { namespace pvData { 
 
-/**
- * typedef for a pointer to a MonitorPlugin
- */
 class MonitorPlugin;
 typedef std::tr1::shared_ptr<MonitorPlugin> MonitorPluginPtr;
 
 
-/**
- * typedef for a pointer to a MonitorPluginCreator
- */
 class MonitorPluginCreator;
 typedef std::tr1::shared_ptr<MonitorPluginCreator> MonitorPluginCreatorPtr;
 
 
-/**
- * typedef for a pointer to a MonitorPluginManager
- */
 class MonitorPluginManager;
 typedef std::tr1::shared_ptr<MonitorPluginManager> MonitorPluginManagerPtr;
         
 
-/** A plugin for raising monitors;
+/**
+ * @brief A plugin for raising monitors;
+ *
  * This is for use by pvAccess servers that support monitors.
  * Since the interface has only a dependence on pvData it
  * can be used for other purposes.
- * A monitor is assumed to be associated with a field of a top level
+ * A monitor is assumed to be associated with a field of a top-level
  * structure.
  */
 class epicsShareClass MonitorPlugin
@@ -60,8 +53,8 @@ public:
     /**
      * Should a monitor be raised?
      * @param pvField The field being monitored.
-     * @param pvTop The top level sructure in which the field resides.
-     * @param monitorElement The client data and bitSets.
+     * @param pvTop The top-level structure in which the field resides.
+     * @param monitorElement The client data and bitsets.
      * @returns true or false.
      * True is returned if the change to this field should cause a monitor.
      * False is returned in a change only to this field should not cause a
@@ -73,9 +66,6 @@ public:
         MonitorElementPtr const &monitorElement) = 0;
     /**
      * A monitor will be sent to the client.
-     * @param pvField The copy of the field being monitored.
-     * The plugin can modify the data.
-     * @param pvTop The top level sructure in which the field resides.
      * @param monitorElement The data for the client.
      * The plugin is allowed to change the data values.
      */
@@ -100,7 +90,9 @@ public:
     virtual void endGroupPut() {};
 };
 
-/** A class that creates a plugin.
+/**
+ * @brief  A class that creates a plugin.
+ *
  * Normlly a plugin is created for a single client.
  */
 class epicsShareClass MonitorPluginCreator
@@ -110,7 +102,7 @@ public:
     /**
      * Create a monitor plugin.
      * @param field The introspection interface for the field monitored.
-     * @param top The introspsction interface for the client structure.
+     * @param top The introspection interface for the client structure.
      * @param pvFieldOptions The options the client requested.
      * The structure has a set of PVString subfields.
      * The options are a set of name,value pairs.
@@ -130,6 +122,8 @@ public:
     
 
 /**
+ * @brief Manager for plugins.
+ *
  * This manages a set of monitor plugins.
  * @author mrk
  */

src/property/alarm.h

@@ -18,37 +18,129 @@
 
 namespace epics { namespace pvData { 
 
+/** @brief enum definition of AlarmSeverity
+ * 
+ * AlarmSeverity is:
+ @code
+enum AlarmSeverity {
+ noAlarm,minorAlarm,majorAlarm,invalidAlarm,undefinedAlarm
+};
+ @endcode
+ * 
+ */
 enum AlarmSeverity {
  noAlarm,minorAlarm,majorAlarm,invalidAlarm,undefinedAlarm
 };
 
+/** @brief enum definition of AlarmStatus
+ * 
+ * AlarmStatus is:
+ @code
+enum AlarmStatus {
+    noStatus,deviceStatus,driverStatus,recordStatus,
+    dbStatus,confStatus,undefinedStatus,clientStatus
+};
+ @endcode
+ * 
+ */
 enum AlarmStatus {
     noStatus,deviceStatus,driverStatus,recordStatus,
     dbStatus,confStatus,undefinedStatus,clientStatus
 };
 
 
+/** @brief methods for AlarmSeverity
+ *
+ */
 class epicsShareClass AlarmSeverityFunc {
 public:
+    /**
+     * Get the severity.
+     * @param value Get the alarm severity corresponding to the integer value.
+     * @return The severity.
+     * @throw if severity value is out of range.
+     */
     static AlarmSeverity getSeverity(int value);
+    /**
+     * Get the array of severity names.
+     * @return The array of severity names.
+     */
     static StringArrayPtr getSeverityNames();
 };
 
+/** @brief methods for AlarmStatus
+ *
+ */
 class epicsShareClass AlarmStatusFunc {
 public:
+    /**
+     * Get the status.
+     * @param value Get the alarm status corresponding to the integer value.
+     * @return The status.
+     * @throw if status value is out of range.
+     */
     static AlarmStatus getStatus(int value);
+    /**
+     * Get the array of status names.
+     * @return The array of status names.
+     */
     static StringArrayPtr getStatusNames();
 };
 
+/** @brief Methods for manipulating alarm.
+ * 
+ * An alarm structure has the following fields:
+ @code
+structure
+    int severity
+    int status
+    string message
+ @endcode
+ * This is a class that holds values corresponding to the fields in
+ * an alarm structure.
+ * It is meant to be used together with pvAlarm
+ * which allows values to be copied between an alarm structure
+ * and this class.
+ * This class should not be extended.
+ */
 class epicsShareClass Alarm {
 public:
+    /**
+     * Constructor
+     */
     Alarm() : severity(0),status(0), message(std::string("")) {}
     //default constructors and destructor are OK
+    /**
+     * get the current message.
+     * @return  The message.
+     */
     std::string getMessage() const {return message;}
+    /**
+     * set the current message.
+     * @param  value The new message value.
+     */
     void setMessage(std::string const &value) {message = value;}
+    /**
+     * get the current severity.
+     * @return The severity.
+     */
     AlarmSeverity getSeverity() const;
+    /**
+     * set the current severity.
+     * @param value The new severity.
+     * @throw if severity value is out of range.
+     */
     void setSeverity(AlarmSeverity value) {severity = value;}
+    /**
+     * get the current status.
+     * @return The status.
+     */
     AlarmStatus getStatus() const;
+    /**
+     * set the current status.
+     * @param value The new status.
+     * @throw if status value is out of range.
+     */
     void setStatus(AlarmStatus value) { status = value;}
 private:
     int32 severity;

src/property/control.h

@@ -14,15 +14,58 @@
 
 namespace epics { namespace pvData { 
 
+/** @brief Methods for a control structure.
+ * 
+ * An control structure has the following fields:
+ @code
+structure
+    double limitLow
+    double limitHigh
+    double minStep
+ @endcode
+ * This is a class that holds values corresponding to the fields in
+ * a control structure.
+ * It is meant to be used together with pvControl
+ * which allows values to be copied between an control structure
+ * and this class.
+ * This class should not be extended.
+ */
 class epicsShareClass Control {
 public:
+    /**
+     * Constructor
+     */
     Control() : low(0.0), high(0.0), minStep(0.0) {}
     //default constructors and destructor are OK
+    /**
+     * get limitLow
+     * @return the current value.
+     */
     double getLow() const {return low;}
+    /**
+     * get limitHigh
+     * @return the current value.
+     */
     double getHigh() const {return high;}
+    /**
+     *  get minStep
+     * @return the current value.
+     */
     double getMinStep() const {return minStep;}
+    /**
+     *  set limitLow
+     *  @param value The new value.
+     */
     void setLow(double value) {low = value;}
+    /**
+     * set limitHigh
+     *  @param value The new value.
+     */
     void setHigh(double value) {high = value;}
+    /**
+     * set minStep
+     *  @param value The new value.
+     */
     void setMinStep(double value) {minStep = value;}
 private:
     double low;

src/property/display.h

@@ -19,21 +19,83 @@
 
 namespace epics { namespace pvData { 
 
+/** @brief Methods for a display structure.
+ * 
+ * An display structure has the following fields:
+ @code
+structure
+    double limitLow
+    double limitHigh
+    string description
+    string format
+    string units
+ @endcode
+ * This is a class that holds values corresponding to the fields in
+ * a display structure.
+ * It is meant to be used together with pvDisplay
+ * which allows values to be copied between an display structure
+ * and this class.
+ * This class should not be extended.
+ */
 class epicsShareClass Display {
 public:
+    /**
+     * Constructor
+     */
     Display()
     : description(std::string("")),format(std::string("")),units(std::string("")),
         low(0.0),high(0.0) {}
     //default constructors and destructor are OK
+    /**
+     * Get the current value of limitLow.
+     * @return The current value.
+     */
     double getLow() const {return low;}
+    /**
+     * Get the current value of limitHigh.
+     * @return The current value.
+     */
     double getHigh() const{ return high;}
+    /**
+     * Set limitLow to a new value.
+     * @param value The value.
+     */
     void setLow(double value){low = value;}
+    /**
+     * Set limitHigh to a new value.
+     * @param value The value.
+     */
     void setHigh(double value){high = value;}
+    /**
+     * Get the current value of description.
+     * @return The current value.
+     */
     std::string getDescription() const {return description;}
+    /**
+     * Set description to a new value.
+     * @param value The value.
+     */
     void setDescription(std::string const & value) {description = value;}
+    /**
+     * Get the current value of format.
+     * @return The current value.
+     */
     std::string getFormat() const {return format;}
+    /**
+     * Set format to a new value.
+     * @param value The value.
+     * The rules for a valid syntax has not been specified.
+     */
     void setFormat(std::string const & value) {format = value;}
+    /**
+     * Get the current value of units.
+     * @return The current value.
+     */
     std::string getUnits() const {return units;}
+    /**
+     * Set units to a new value.
+     * @param value The value.
+     */
     void setUnits(std::string const & value) {units = value;}
 private:
     std::string description;

src/property/pvAlarm.cpp

@@ -28,14 +28,14 @@ bool PVAlarm::attach(PVFieldPtr const & pvField)
 {
     if(pvField->getField()->getType()!=structure) return false;
     PVStructurePtr pvStructure = static_pointer_cast<PVStructure>(pvField);
-    pvSeverity = pvStructure->getIntField("severity");
+    pvSeverity = pvStructure->getSubField<PVInt>("severity");
     if(pvSeverity.get()==NULL) return false;
-    pvStatus = pvStructure->getIntField("status");
+    pvStatus = pvStructure->getSubField<PVInt>("status");
     if(pvStatus.get()==NULL) {
         pvSeverity.reset();
         return false;
     }
-    pvMessage = pvStructure->getStringField("message");
+    pvMessage = pvStructure->getSubField<PVString>("message");
     if(pvMessage.get()==NULL) {
         pvSeverity.reset();
         pvStatus.reset();

src/property/pvAlarm.h

@@ -20,18 +20,65 @@
 
 namespace epics { namespace pvData {
 
+/** @brief Methods for accessing an alarm structure.
+ * 
+ * An alarm structure has the following fields:
+ @code
+structure
+    int severity
+    int status
+    string message
+ @endcode
+ * This class can be attached to an alarm structure field of any
+ * PVData object.
+ * The methods provide access to the fields in the attached structure,
+ * via an instance of class Alarm.
+ * This class should not be extended.
+ */
 class epicsShareClass PVAlarm {
 public:
+    /**
+     * 
+     * Constructor
+     */
     PVAlarm() {}
     //default constructors and destructor are OK
-    //returns (false,true) if pvField(isNot, is valid enumerated structure
+    //returns (false,true) if pvField(is not, is) a valid alarm structure
     //An automatic detach is issued if already attached.
+    /*
+     * Attach to a field of a PVData object.
+     * @param pvField The pvField.
+     * @return (false,true) if the pvField (is not, is) an alarm structure.
+     */
+    /*
+     * Attach to a field of a PVData object.
+     * @param pvField The pvField.
+     * @return (false,true) if the pvField (is not, is) an alarm structure.
+     */
     bool attach(PVFieldPtr const & pvField);
+    /**
+     * Detach for pvField.
+     */
     void detach();
+    /**
+     * Is the PVAlarm attached to a pvField?
+     * @return (false,true) (is not,is) attached to a pvField.
+     */
     bool isAttached();
     // each of the following throws logic_error is not attached to PVField
     // set returns false if field is immutable
+    /**
+     * copy the alarm structure  values to Alarm
+     * @param alarm An instance of class Alarm
+     * @throw If not attached to a pvField.
+     */
     void get(Alarm & alarm) const;
+    /**
+     * copy the values from Alarm to the alarm structure.
+     * @param alarm An instance of class Alarm
+     * @return (false,true) if pvField (immutable, mutable)
+     * @throw If not attached to a pvField.
+     */
     bool set(Alarm const & alarm);
 private:
     PVIntPtr pvSeverity;

src/property/pvControl.cpp

@@ -28,14 +28,14 @@ bool PVControl::attach(PVFieldPtr const & pvField)
 {
     if(pvField->getField()->getType()!=structure) return false;
     PVStructurePtr pvStructure = static_pointer_cast<PVStructure>(pvField);
-    pvLow = pvStructure->getDoubleField("limitLow");
+    pvLow = pvStructure->getSubField<PVDouble>("limitLow");
     if(pvLow.get()==NULL) return false;
-    pvHigh = pvStructure->getDoubleField("limitHigh");
+    pvHigh = pvStructure->getSubField<PVDouble>("limitHigh");
     if(pvHigh.get()==NULL) {
         pvLow.reset();
         return false;
     }
-    pvMinStep = pvStructure->getDoubleField("minStep");
+    pvMinStep = pvStructure->getSubField<PVDouble>("minStep");
     if(pvMinStep.get()==NULL) {
         pvLow.reset();
         pvHigh.reset();

src/property/pvControl.h

@@ -17,18 +17,60 @@
 
 namespace epics { namespace pvData { 
 
+/** @brief Methods for accessing an control structure.
+ * 
+ * An control structure has the following fields:
+ @code
+structure
+    double limitLow
+    double limitHigh
+    double minStep
+ @endcode
+ * This class can be attached to an control structure field of any
+ * PVData object.
+ * The methods provide access to the fields in the attached structure,
+ * via an instance of class Control.
+ * This class should not be extended.
+ */
 class epicsShareClass PVControl {
 public:
+    /**
+     * 
+     * Constructor
+     */
     PVControl(){}
     //default constructors and destructor are OK
-    //returns (false,true) if pvField(isNot, is valid enumerated structure
+    //returns (false,true) if pvField(is not, is) a valid control structure
     //An automatic detach is issued if already attached.
+    /*
+     * Attach to a field of a PVData object.
+     * @param pvField The pvField.
+     * @return (false,true) if the pvField (is not, is) an control structure.
+     */
     bool attach(PVFieldPtr const & pvField);
+    /**
+     * Detach for pvField.
+     */
     void detach();
+    /**
+     * Is the PVControl attached to a pvField?
+     * @return (false,true) (is not,is) attached to a pvField.
+     */
     bool isAttached();
-    // each of the following throws logic_error is not attached to PVField
+    // each of the following throws logic_error if not attached to PVField
     // set returns false if field is immutable
-    void get(Control &) const;
+    /**
+     * copy the control structure  values to Control
+     * @param control An instance of class Control
+     * @throw If not attached to a pvField.
+     */
+    void get(Control & control) const;
+    /**
+     * copy the values from Control to the control structure.
+     * @param control An instance of class Control
+     * @return (false,true) if pvField (immutable, mutable)
+     * @throw If not attached to a pvField.
+     */
     bool set(Control const & control);
 private:
     PVDoublePtr pvLow;

src/property/pvDisplay.cpp

@@ -28,24 +28,24 @@ bool PVDisplay::attach(PVFieldPtr const & pvField)
 {
     if(pvField->getField()->getType()!=structure) return false;
     PVStructurePtr pvStructure = static_pointer_cast<PVStructure>(pvField);
-    pvDescription = pvStructure->getStringField("description");
+    pvDescription = pvStructure->getSubField<PVString>("description");
     if(pvDescription.get()==NULL) return false;
-    pvFormat = pvStructure->getStringField("format");
+    pvFormat = pvStructure->getSubField<PVString>("format");
     if(pvFormat.get()==NULL) {
         detach();
         return false;
     }
-    pvUnits = pvStructure->getStringField("units");
+    pvUnits = pvStructure->getSubField<PVString>("units");
     if(pvUnits.get()==NULL) {
         detach();
         return false;
     }
-    pvLow = pvStructure->getDoubleField(string("limitLow"));
+    pvLow = pvStructure->getSubField<PVDouble>(string("limitLow"));
     if(pvLow.get()==NULL) {
         detach();
         return false;
     }
-    pvHigh = pvStructure->getDoubleField(string("limitHigh"));
+    pvHigh = pvStructure->getSubField<PVDouble>(string("limitHigh"));
     if(pvHigh.get()==NULL) {
         detach();
         return false;

src/property/pvDisplay.h

@@ -20,17 +20,61 @@
 
 namespace epics { namespace pvData { 
 
+/** @brief Methods for accessing an display structure.
+ * 
+ * A display structure has the following fields:
+ @code
+structure
+    double limitLow
+    double limitHigh
+    string description
+    string format
+    string units
+ @endcode
+ * This class can be attached to a display structure field of any
+ * PVData object.
+ * The methods provide access to the fields in the attached structure,
+ * via an instance of class Display.
+ * This class should not be extended.
+ */
 class epicsShareClass PVDisplay {
 public:
+    /**
+     * 
+     * Constructor
+     */
     PVDisplay() {}
     //default constructors and destructor are OK
     //An automatic detach is issued if already attached.
+    /*
+     * Attach to a field of a PVData object.
+     * @param pvField The pvField.
+     * @return (false,true) if the pvField (is not, is) an display structure.
+     */
     bool attach(PVFieldPtr const & pvField);
+    /**
+     * Detach for pvField.
+     */
     void detach();
+    /**
+     * Is the PVDisplay attached to a pvField?
+     * @return (false,true) (is not,is) attached to a pvField.
+     */
     bool isAttached();
-    // each of the following throws logic_error is not attached to PVField
+    // each of the following throws logic_error if not attached to PVField
     // a set returns false if field is immutable
-    void get(Display &) const;
+    /**
+     * copy the display structure  values to Display
+     * @param display An instance of class Display
+     * @throw If not attached to a pvField.
+     */
+    void get(Display & display) const;
+    /**
+     * copy the values from Display to the display structure.
+     * @param display An instance of class Display
+     * @return (false,true) if pvField (immutable, mutable)
+     * @throw If not attached to a pvField.
+     */
     bool set(Display const & display);
 private:
     static std::string noDisplayFound;

src/property/pvEnumerated.cpp

@@ -28,15 +28,14 @@ bool PVEnumerated::attach(PVFieldPtr const & pvField)
 {
     if(pvField->getField()->getType()!=structure) return false;
     PVStructurePtr pvStructure = static_pointer_cast<PVStructure>(pvField);
-    pvIndex = pvStructure->getIntField("index");
+    pvIndex = pvStructure->getSubField<PVInt>("index");
     if(pvIndex.get()==NULL) return false;
-    PVScalarArrayPtr pvScalarArray = pvStructure->getScalarArrayField(
-        "choices",pvString);
-    if(pvScalarArray.get()==NULL) {
+    PVStringArrayPtr pvStringArray = pvStructure->getSubField<PVStringArray>("choices");
+    if(pvStringArray.get()==NULL) {
         pvIndex.reset();
         return false;
     }
-    pvChoices = static_pointer_cast<PVStringArray>(pvScalarArray);
+    pvChoices = pvStringArray;
     return true;
 }
 
@@ -74,8 +73,12 @@ string PVEnumerated::getChoice()
     if(pvIndex.get()==NULL ) {
          throw std::logic_error(notAttached);
     }
-    int index = pvIndex->get();
+    size_t index = pvIndex->get();
     const PVStringArray::const_svector& data(pvChoices->view());
+    if(/*index<0 ||*/ index>=data.size()) {
+        string nullString;
+        return nullString;
+    }
     return data[index];
 }
 

src/property/pvEnumerated.h

@@ -19,24 +19,89 @@
 
 namespace epics { namespace pvData { 
 
+/** @brief Methods for accessing an enumerated structure.
+ * 
+ * An enumerated structure has the following fields:
+ @code
+structure
+    int index
+    string[] choices
+ @endcode
+ * This class can be attached to an enumerated structure field of any
+ * PVData object.
+ * The methods provide access to the fields in the attached structure.
+ * This class should not be extended.
+ */
 class epicsShareClass PVEnumerated {
 public:
+    /*
+     * Constructor.
+     */
     PVEnumerated() {}
     //default constructors and destructor are OK
     //This class should not be extended
-    //returns (false,true) if pvField(isNot, is valid enumerated structure
+    //returns (false,true) if pvField(is not, is) a valid enumerated structure
     //An automatic detach is issued if already attached.
+    /*
+     * Attach to a field of a PVData object.
+     * @param pvField The pvField.
+     * @return (false,true) if the pvField (is not, is) an enumerated structure.
+     */
     bool attach(PVFieldPtr const & pvField);
+    /**
+     * Detach for pvField.
+     */
     void detach();
+    /**
+     * Is the PVEnumerated attached to a pvField?
+     * @return (false,true) (is not,is) attached to a pvField.
+     */
     bool isAttached();
     // each of the following throws logic_error is not attached to PVField
     // a set returns false if field is immutable
+    /**
+     * Set the index.
+     * @param index The new index.
+     * @throw if not attached.
+     * The index will be changed even if it is out of range of size of choices.
+     */
     bool setIndex(int32 index);
+    /**
+     * Get the index.
+     * @return The current index.
+     * @throw if not attached.
+     */
     int32 getIndex();
+    /**
+     * Get the choice corresponding to current index.
+     * @return The choice. If index is out of range a null string is returned.
+     * @throw if not attached.
+     */
     std::string getChoice();
+    /**
+     * Can choices be changed?
+     * @return (false,true) if choices (can not, can) be changed.
+     * @throw if not attached.
+     */
     bool choicesMutable();
+    /**
+     * Get the choices.
+     * @return The current index.
+     * @throw if not attached.
+     */
     inline PVStringArray::const_svector getChoices(){return pvChoices->view();}
+    /**
+     * Get the size of the choices array.
+     * @return The size.
+     * @throw if not attached.
+     */
     int32 getNumberChoices();
+    /**
+     * Get the choices.
+     * @param choices The new value for choices.`
+     * @return (false,true) if choices (was not was) replaced.
+     * @throw if not attached.
+     */
     bool setChoices(const StringArray & choices);
 private:
     static std::string notFound;

src/property/pvTimeStamp.cpp

@@ -30,11 +30,11 @@ bool PVTimeStamp::attach(PVFieldPtr const & pvField)
     PVStructurePtr xxx = static_pointer_cast<PVStructure>(pvField);
     PVStructure* pvStructure = xxx.get();
     while(true) {
-        PVLongPtr pvLong = pvStructure->getLongField("secondsPastEpoch");
+        PVLongPtr pvLong = pvStructure->getSubField<PVLong>("secondsPastEpoch");
         if(pvLong.get()!=NULL) {
             pvSecs = pvLong;
-            pvNano = pvStructure->getIntField("nanoseconds");
-            pvUserTag = pvStructure->getIntField("userTag");
+            pvNano = pvStructure->getSubField<PVInt>("nanoseconds");
+            pvUserTag = pvStructure->getSubField<PVInt>("userTag");
         }
         if(pvSecs.get()!=NULL
         && pvNano.get()!=NULL

src/property/pvTimeStamp.h

@@ -21,19 +21,61 @@
 
 namespace epics { namespace pvData { 
 
+/** @brief Methods for accessing a timeStamp structure.
+ * 
+ * A timeStamp structure has the following fields:
+ @code
+structure
+    long secondsPastEpoch
+    int nanoseconds
+    int userTag
+ @endcode
+ * This class can be attached to a timeStamp structure field of any
+ * PVData object.
+ * The methods provide access to the fields in the attached structure,
+ * via an instance of class TimeStamp.
+ * This class should not be extended.
+ */
 class epicsShareClass PVTimeStamp {
 public:
+    /**
+     * 
+     * Constructor
+     */
     PVTimeStamp(){}
     //default constructors and destructor are OK
     //This class should not be extended
     
-    //returns (false,true) if pvField(isNot, is valid timeStamp structure
+    //returns (false,true) if pvField(is not, is) a valid timeStamp structure
+    /*
+     * Attach to a field of a PVData object.
+     * @param pvField The pvField.
+     * @return (false,true) if the pvField (is not, is) an timeStamp structure.
+     */
     bool attach(PVFieldPtr const & pvField);
+    /**
+     * Detach for pvField.
+     */
     void detach();
+    /**
+     * Is the PVTimeStamp attached to a pvField?
+     * @return (false,true) (is not,is) attached to a pvField.
+     */
     bool isAttached();
-    // following throw logic_error is not attached to PVField
-    // a set returns false if field is immutable
-    void get(TimeStamp &) const;
+    // following throw logic_error if not attached to PVField
+    // set returns false if field is immutable
+    /**
+     * copy the timeStamp structure  values to TimeStamp
+     * @param timeStamp An instance of class TimeStamp
+     * @throw If not attached to a pvField.
+     */
+    void get(TimeStamp & timeStamp) const;
+    /**
+     * copy the values from TimeStamp to the timeStamp structure.
+     * @param timeStamp An instance of class TimeStamp
+     * @return (false,true) if pvField (immutable, mutable)
+     * @throw If not attached to a pvField.
+     */
     bool set(TimeStamp const & timeStamp);
 private:
     static std::string noTimeStamp;

src/property/timeStamp.h

@@ -35,43 +35,158 @@ epicsShareExtern int32 microSecPerSec;
 epicsShareExtern int32 nanoSecPerSec;
 epicsShareExtern int64 posixEpochAtEpicsEpoch;
 
+/** @brief Methods for manipulating timeStamp.
+ * 
+ * A timeStamp structure has the following fields:
+ @code
+structure
+    long secondsPastEpoch
+    int nanoseconds
+    int userTag
+ @endcode
+ * This is a class that holds values corresponding to the fields in
+ * a timeStamp structure.
+ * It is meant to be used together with pvTimeStamp
+ * which allows values to be copied between an timeStamp structure
+ * and this class.
+ * This class should not be extended.
+ */
 class epicsShareClass TimeStamp {
 public:
+    /**
+     * Default constructor
+     */
     TimeStamp() 
     :secondsPastEpoch(0), nanoseconds(0), userTag(0) {}
+    /**
+     * Constructor
+     * @param secondsPastEpoch seconds since 1970 UTC
+     * @param nanoseconds nanoseconds since secondsPastEpoch
+     * @param userTag application specific
+     */
     TimeStamp(int64 secondsPastEpoch,int32 nanoseconds = 0,int32 userTag = 0);
     //default constructors and destructor are OK
     //This class should not be extended
+    /**
+     * adjust secondsPastEpoch and nanoseconds so that
+     * 0 <= nanoseconds < nanoSecPerSec
+     */
     void normalize();
-    void fromTime_t(const time_t &);
-    void toTime_t(time_t &) const;
+    /**
+     * Set timeStamp from standard C time
+     * @param time time as returned by std::time
+     */
+    void fromTime_t(const time_t & time);
+    /**
+     * Set time from timeStamp
+     * @param time time as defined by std::time
+     */
+    void toTime_t(time_t &time) const;
+    /**
+     * Get secondsPastEpoch.
+     * @return The secondsPastEpoch.
+     */
     int64 getSecondsPastEpoch() const {return secondsPastEpoch;}
+    /**
+     * Get secondsPastEpoch for EPICS V3.
+     * This is seconds since 1990 UTC.
+     * @return The epics V3 secondsPastEpoch.
+     */
     int64 getEpicsSecondsPastEpoch() const {
         return secondsPastEpoch - posixEpochAtEpicsEpoch;
     }
+    /**
+     * Get nanoseconds.
+     * @return nanoseconds within timeStamp.
+     */
     int32 getNanoseconds() const  {return nanoseconds;}
+    /**
+     * Get userTag.
+     * @return userTag.
+     */
     int32 getUserTag() const {return userTag;}
+    /**
+     * Set userTag.
+     * @param userTag application specific.
+     */
     void setUserTag(int userTag) {this->userTag = userTag;}
+    /**
+     * Set time fields in timeStamp.
+     * Result will be normalized.
+     * @param secondsPastEpoch seconds part of timeStamp.
+     * @param nanoseconds nanoseconds part of timeStamp.
+     */
     void put(int64 secondsPastEpoch,int32 nanoseconds = 0) {
         this->secondsPastEpoch = secondsPastEpoch;
         this->nanoseconds = nanoseconds;
         normalize();
     }
+    /**
+     * Set time fields in timeStamp.
+     * @param milliseconds The number of milliseconds since the epoch.
+     */
     void put(int64 milliseconds);
+    /**
+     * Set the timeStamp to the current time.
+     */
     void getCurrent();
+    /**
+     * Convert the timeStamp to a double value that is seconds past epoch.
+     * @return seconds past 1970 UTC
+     */
     double toSeconds() const ;
+    /**
+     * Standard C++ operator.
+     */
     bool operator==(TimeStamp const &) const;
+    /**
+     * Standard C++ operator.
+     */
     bool operator!=(TimeStamp const &) const;
+    /**
+     * Standard C++ operator.
+     */
     bool operator<=(TimeStamp const &) const;
+    /**
+     * Standard C++ operator.
+     */
     bool operator< (TimeStamp const &) const;
+    /**
+     * Standard C++ operator.
+     */
     bool operator>=(TimeStamp const &) const;
+    /**
+     * Standard C++ operator.
+     */
     bool operator> (TimeStamp const &) const;
+    /**
+     * Return a-b as a  double value with units of seconds.
+     * @param a first timeStamp
+     * @param b second timeStamp
+     * @return time difference in seconds.
+     */
     static double diff(TimeStamp const & a,TimeStamp const & b);
+    /**
+     * Standard C++ operator.
+     */
     TimeStamp & operator+=(int64 seconds);
+    /**
+     * Standard C++ operator.
+     */
     TimeStamp & operator-=(int64 seconds);
+    /**
+     * Standard C++ operator.
+     */
     TimeStamp & operator+=(double seconds);
+    /**
+     * Standard C++ operator.
+     */
     TimeStamp & operator-=(double seconds);
-    int64 getMilliseconds(); // milliseconds since epoch
+    /**
+     * Get number of milliseconds past epoch.
+     * @return milliseconds past epoch.
+     */
+    int64 getMilliseconds();
 private:
     static int64 diffInt(TimeStamp const &left,TimeStamp const  &right );
     int64 secondsPastEpoch;

src/pv/convert.h

@@ -22,40 +22,12 @@
 
 namespace epics { namespace pvData { 
 
-bool epicsShareExtern operator==(const PVField&, const PVField&);
-
-static inline bool operator!=(const PVField& a, const PVField& b)
-{return !(a==b);}
-
-
-bool epicsShareExtern operator==(const Field&, const Field&);
-bool epicsShareExtern operator==(const Scalar&, const Scalar&);
-bool epicsShareExtern operator==(const ScalarArray&, const ScalarArray&);
-bool epicsShareExtern operator==(const Structure&, const Structure&);
-bool epicsShareExtern operator==(const StructureArray&, const StructureArray&);
-bool epicsShareExtern operator==(const Union&, const Union&);
-bool epicsShareExtern operator==(const UnionArray&, const UnionArray&);
-bool epicsShareExtern operator==(const BoundedString&, const BoundedString&);
-
-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);}
-static inline bool operator!=(const Union& a, const Union& b)
-{return !(a==b);}
-static inline bool operator!=(const UnionArray& a, const UnionArray& b)
-{return !(a==b);}
-static inline bool operator!=(const BoundedString& a, const BoundedString& b)
-{return !(a==b);}
-
+class Convert;
+typedef std::tr1::shared_ptr<Convert> ConvertPtr;
 
 /**
+ * @brief Conversion and Copy facility for pvData.
+ *
  * 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
@@ -74,85 +46,45 @@ static inline bool operator!=(const BoundedString& a, const BoundedString& b)
  * 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 epicsShareClass Convert {
 public:
     static ConvertPtr getConvert();
-    /**
-     * Get the full fieldName for the pvField.
-     * @param builder The builder that will have the result.
-     * @param pvField The pvField.
-     */
-    void getFullName(std::string *buf,PVFieldPtr const & pvField)
-    {
-        *buf = pvField->getFullName();
-    }
 
     /**
-     * Do fields have the same definition.
-     *
-     * @param  First field
-     * @param  Second field
-     * @return (false, true) if the fields (are not, are) the same.
+     * 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.
+     * @deprecated use "to->copy[Unchecked](*from)" instead
      */
-    inline bool equals(PVFieldPtr const &a,PVFieldPtr const &b)
-    {
-        return *a==*b;
-    }
-
-    /**
-     * Do fields have the same definition.
-     *
-     * @param  First field
-     * @param  Second field
-     * @return (false, true) if the fields (are not, are) the same.
-     */
-    inline bool equals(PVField &a,PVField &b)
-    {
-        return a==b;
+    void copy(PVFieldPtr const & from, PVFieldPtr const & to) {
+        to->copy(*from);
     }
 
     /**
      * 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
-     */
-    inline void getString(std::string *buf,PVFieldPtr const & pvField,int indentLevel)
-    {getString(buf, pvField.get(), 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.
+     * @param buf string that will hold pvField converted to a string,
+     * @param pvField The PVField to convert to a string.
      */
     inline void getString(std::string * buf,PVFieldPtr const & pvField)
     {getString(buf, pvField.get(), 0);}
     /**
      * 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 buf string that will hold pvField converted to a string,
+     * @param pvField The PVField to convert to a string.
      * @param indentLevel indentation level
      */
     void getString(std::string * 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.
-     */
-    inline void getString(std::string * buf,PVField const * pvField)
-    {getString(buf, pvField, 0);}
      /**
-      * Convert from an array of std::string to a PVScalar
+      * Convert from an array of std::string to a PVStructure
       * @param pv The PV.
       * @param from The array of std::string value to convert and put into a PV.
       * @param fromStartIndex The first element if the array of strings.
+      * @return The total number of fields that have been changed.
       * @throws std::logic_error if the array of std::string does not have a valid values.
       */
     std::size_t fromString(
@@ -212,129 +144,7 @@ public:
         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);
-    /**
-     * 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);
-    /**
-     * Are from and to valid arguments for copyUnion.
-     * They are only compatible if they have the same Union description.
-     * @param from from union.
-     * @param to union.
-     * @return (false,true) If the arguments (are not, are) compatible.
-     */
-    bool isCopyUnionCompatible(
-        UnionConstPtr const & from, UnionConstPtr const & to);
-    /**
-     * Copy from a union pv to another union pv.
-     * NOTE: Only compatible nodes are copied.
-     * @param from The source.
-     * @param to The destination.
-     * @throws std::invalid_argument if the arguments are not compatible.
-     */
-    void copyUnion(PVUnionPtr const & from, PVUnionPtr const & to);
-    /**
-     * Are from and to valid for copyUnionArray.
-     * @param from The from UnionArray.
-     * @param to The to UnionArray.
-     * @return (false,true) If the arguments (are not, are) compatible.
-     */
-    bool isCopyUnionArrayCompatible(
-        UnionArrayConstPtr const & from, UnionArrayConstPtr const & to);
-     /**
-      * Copy from a union array to another union array.
-      * @param from The source array.
-      * @param to The destination array.
-      */
-    void copyUnionArray(
-        PVUnionArrayPtr const & from, PVUnionArrayPtr const & to);
-    /**
-     * Convert a PV to a <byte>.
+     * Convert a PV to a byte.
      * @param pv a PV
      * @return converted value
      */
@@ -478,13 +288,6 @@ public:
      */
     inline void fromDouble(PVScalarPtr const & pv, double from) { pv->putFrom<double>(from); }
 
-    /**
-     * Convenience method for implementing dump.
-     * It generates a newline and inserts blanks at the beginning of the newline.
-     * @param builder The std::string * being constructed.
-     * @param indentLevel Indent level, Each level is four spaces.
-     */
-    void newLine(std::string * buf, int indentLevel);
 };
 
 static inline ConvertPtr getConvert() { return Convert::getConvert(); }

src/pv/printer.h

@@ -1,73 +0,0 @@
-#ifndef PRINTER_H
-#define PRINTER_H
-
-#include <ostream>
-#include <shareLib.h>
-
-#include "pvData.h"
-
-namespace epics { namespace pvData {
-
-class PrinterBase
-{
-public:
-    virtual void setStream(std::ostream&);
-    virtual void clearStream();
-
-    virtual void print(const PVField&);
-
-protected:
-    PrinterBase();
-    virtual ~PrinterBase()=0;
-
-    virtual void beginStructure(const PVStructure&);
-    virtual void endStructure(const PVStructure&);
-
-    virtual void beginStructureArray(const PVStructureArray&);
-    virtual void endStructureArray(const PVStructureArray&);
-
-    virtual void beginUnion(const PVUnion&);
-    virtual void endUnion(const PVUnion&);
-
-    virtual void beginUnionArray(const PVUnionArray&);
-    virtual void endUnionArray(const PVUnionArray&);
-
-    virtual void encodeScalar(const PVScalar&);
-    virtual void encodeArray(const PVScalarArray&);
-    virtual void encodeNull();
-
-    inline std::ostream& S() { return *strm; }
-
-    void impl_print(const PVField&);
-private:
-    std::ostream *strm;
-};
-
-class PrinterPlain : public PrinterBase
-{
-    size_t ilvl;
-protected:
-    virtual void beginStructure(const PVStructure&);
-    virtual void endStructure(const PVStructure&);
-
-    virtual void beginStructureArray(const PVStructureArray&);
-    virtual void endStructureArray(const PVStructureArray&);
-
-    virtual void beginUnion(const PVUnion&);
-    virtual void endUnion(const PVUnion&);
-
-    virtual void beginUnionArray(const PVUnionArray&);
-    virtual void endUnionArray(const PVUnionArray&);
-
-    virtual void encodeScalar(const PVScalar&);
-    virtual void encodeArray(const PVScalarArray&);
-    virtual void encodeNull();
-
-public:
-    PrinterPlain();
-    virtual ~PrinterPlain();
-};
-
-}}
-
-#endif // PRINTER_H

src/pv/pvData.h

@@ -33,6 +33,14 @@
 typedef class std::ios std::ios_base;
 #endif
 
+#if defined(__GNUC__) && !(defined(__vxworks) && !defined(_WRS_VXWORKS_MAJOR))
+#define USAGE_DEPRECATED __attribute__((deprecated))
+#define USAGE_ERROR(MSG) __attribute__((error(MSG)))
+#else
+#define USAGE_DEPRECATED
+#define USAGE_ERROR(MSG) { throw std::runtime_error(MSG); }
+#endif
+
 namespace epics { namespace pvData { 
 
 class PostHandler;
@@ -122,7 +130,8 @@ class PVDataCreate;
 typedef std::tr1::shared_ptr<PVDataCreate> PVDataCreatePtr;
 
 /**
- * This class is implemented by code that calls setPostHander
+ * @brief This class is implemented by code that calls setPostHander
+ *
  */
 class epicsShareClass PostHandler 
 {
@@ -133,13 +142,14 @@ public:
      */
     virtual ~PostHandler(){}
     /**
-     * This is called evertime postPut is called for this field.
+     * This is called every time postPut is called for this field.
      */
     virtual void postPut() = 0;
 };
 
 /**
- * PVField is the base class for each PVData field.
+ * @brief PVField is the base class for each PVData field.
+ *
  * Each PVData field has an interface that extends PVField.
  */
 class epicsShareClass PVField
@@ -158,19 +168,19 @@ public:
     virtual ~PVField();
     /**
      * Get the fieldName for this field.
-     * @return The name or empty string if top level field.
+     * @return The name or empty string if top-level field.
      */
     inline const std::string& getFieldName() const {return fieldName;}
     /**
      * Fully expand the name of this field using the
-     * names of its parent fields with a dot '.' seperating
+     * names of its parent fields with a dot '.' separating
      * each name.
      */
     std::string getFullName() const;
     /**
-     * Get offset of the PVField field within top level structure.
+     * Get offset of the PVField field within top-level structure.
      * Every field within the PVStructure has a unique offset.
-     * The top level structure has an offset of 0.
+     * The top-level structure has an offset of 0.
      * The first field within the structure has offset equal to 1.
      * The other offsets are determined by recursively traversing each structure of the tree.
      * @return The offset.
@@ -194,8 +204,8 @@ public:
      */
     bool isImmutable() const;
     /**
-     * Set the field to be immutable, i. e. it can no longer be modified.
-     * This is permanent, i.e. once done the field can onot be made mutable.
+     * Set the field to be immutable, i.e. it can no longer be modified.
+     * This is permanent, i.e. once done the field cannot be made mutable.
      */
     virtual void setImmutable();
     /**
@@ -231,12 +241,15 @@ public:
      */
     virtual std::ostream& dumpValue(std::ostream& o) const = 0;
 
+    void copy(const PVField& from);
+    void copyUnchecked(const PVField& from);
+
 protected:
     PVField::shared_pointer getPtrSelf()
     {
         return shared_from_this();
     }
-    PVField(FieldConstPtr field);
+    explicit PVField(FieldConstPtr field);
     void setParentAndName(PVStructure *parent, std::string const & fieldName);
 private:
     static void computeOffset(const PVField *pvField);
@@ -256,7 +269,8 @@ private:
 epicsShareExtern std::ostream& operator<<(std::ostream& o, const PVField& f);
 
 /**
- * PVScalar is the base class for each scalar field.
+ * @brief PVScalar is the base class for each scalar field.
+ *
  */
 class epicsShareClass PVScalar : public PVField {
     // friend our child class(s) so that it
@@ -317,12 +331,16 @@ public:
 
     virtual void assign(const PVScalar&) = 0;
 
+    virtual void copy(const PVScalar& from) = 0;
+    virtual void copyUnchecked(const PVScalar& from) = 0;
+
 protected:
-    PVScalar(ScalarConstPtr const & scalar);
+    explicit PVScalar(ScalarConstPtr const & scalar);
 };
 
 /**
- * Class that holds the data for each posssible scalar type.
+ * @brief Class that holds the data for each possible scalar type.
+ *
  */
 template<typename T>
 class epicsShareClass PVScalarValue : public PVScalar {
@@ -345,7 +363,7 @@ public:
     virtual T get() const = 0;
     /**
      * Put a new value into the PVScalar.
-     * @param The value.
+     * @param value The value.
      */
     virtual void put(T value) = 0;
 
@@ -381,8 +399,27 @@ public:
         put(castUnsafe<T,T1>(val));
     }
 
+    virtual void assign(const PVScalar& scalar)
+    {
+        if(isImmutable())
+            throw std::invalid_argument("destination is immutable");
+        copyUnchecked(scalar);
+    }
+    virtual void copy(const PVScalar& from)
+    {
+        assign(from);
+    }
+    virtual void copyUnchecked(const PVScalar& from)
+    {
+        if(this==&from)
+            return;
+        T result;
+        from.getAs((void*)&result, typeCode);
+        put(result);
+    }
+
 protected:
-    PVScalarValue(ScalarConstPtr const & scalar)
+    explicit PVScalarValue(ScalarConstPtr const & scalar)
     : PVScalar(scalar) {}
     virtual void getAs(void * result, ScalarType rtype) const
     {
@@ -395,16 +432,6 @@ protected:
         castUnsafeV(1, typeCode, (void*)&result, stype, src);
         put(result);
     }
-    virtual void assign(const PVScalar& scalar)
-    {
-        if(this==&scalar)
-            return;
-        if(isImmutable())
-            throw std::invalid_argument("Destination is immutable");
-        T result;
-        scalar.getAs((void*)&result, typeCode);
-        put(result);
-    }
 
 private:
     friend class PVDataCreate;
@@ -437,7 +464,8 @@ typedef std::tr1::shared_ptr<PVFloat> PVFloatPtr;
 typedef std::tr1::shared_ptr<PVDouble> PVDoublePtr;
 
 /**
- * PVString is special case, since it implements SerializableArray
+ * @brief PVString is special case, since it implements SerializableArray
+ *
  */
 class epicsShareClass PVString : public PVScalarValue<std::string>, SerializableArray {
 public:
@@ -446,14 +474,18 @@ public:
      */
     virtual ~PVString() {}
 protected:
-    PVString(ScalarConstPtr const & scalar)
+    explicit PVString(ScalarConstPtr const & scalar)
     : PVScalarValue<std::string>(scalar) {}
 };
 typedef std::tr1::shared_ptr<PVString> PVStringPtr;
 
 
 /**
- * PVArray is the base class for all array types, i.e. the scalarArray types and structureArray.
+ * @brief PVArray is the base class for all array types.
+ *
+ * The array types are unionArray, strucrtureArray and scalarArray.
+ * There is a scalarArray type for each scalarType.
+ *
  */
 class epicsShareClass PVArray : public PVField, public SerializableArray {
 public:
@@ -472,8 +504,8 @@ public:
      */
     virtual ArrayConstPtr getArray() const = 0;
     /**
-     * Set the field to be immutable, i. e. it can no longer be modified.
-     * This is permanent, i.e. once done the field can onot be made mutable.
+     * Set the field to be immutable, i.e. it can no longer be modified.
+     * This is permanent, i.e. once done the field cannot be made mutable.
      */
     virtual void setImmutable();
     /**
@@ -483,7 +515,7 @@ public:
     virtual std::size_t getLength() const = 0;
     /**
      * Set the array length.
-     * @param The length.
+     * @param length The length.
      */
     virtual void setLength(std::size_t length) = 0;
     /**
@@ -503,7 +535,7 @@ public:
     void setCapacityMutable(bool isMutable);
     /**
      * Set the array capacity.
-     * @param The capacity.
+     * @param capacity The capacity.
      */
     virtual void setCapacity(std::size_t capacity) = 0;
 
@@ -511,7 +543,7 @@ public:
     virtual std::ostream& dumpValue(std::ostream& o, std::size_t index) const = 0;
 
 protected:
-    PVArray(FieldConstPtr const & field);
+    explicit PVArray(FieldConstPtr const & field);
     void checkLength(size_t length);
 private:
     bool capacityMutable;
@@ -520,9 +552,9 @@ private:
 
 epicsShareExtern std::ostream& operator<<(format::array_at_internal const& manip, const PVArray& array);
 
-
 /**
- * Base class for a scalarArray.
+ * @brief Base class for a scalarArray.
+ *
  */
 class epicsShareClass PVScalarArray : public PVArray {
 public:
@@ -570,7 +602,7 @@ public:
      * A copy and element-wise conversion is performed unless
      * the element type of the PVScalarArray matches the
      * type of the provided data.
-     * If the types do match then a new refernce to the provided
+     * If the types do match then a new reference to the provided
      * data is kept.
      *
      * Calls postPut()
@@ -588,22 +620,38 @@ public:
      * A copy and element-wise conversion is performed unless
      * the element type of the PVScalarArray matches the
      * type of the provided data.
-     * If the types do match then a new refernce to the provided
+     * If the types do match then a new reference to the provided
      * data is kept.
      */
-    void assign(PVScalarArray& pv) {
+    void assign(const PVScalarArray& pv) {
+        if (isImmutable())
+            throw std::invalid_argument("destination is immutable");
+        copyUnchecked(pv);
+    }
+
+    void copy(const PVScalarArray& from) {
+        assign(from);
+    }
+
+    void copyUnchecked(const PVScalarArray& from) {
+        if (this==&from)
+            return;
         shared_vector<const void> temp;
-        pv._getAsVoid(temp);
+        from._getAsVoid(temp);
         _putFromVoid(temp);
     }
 
 protected:
-    PVScalarArray(ScalarArrayConstPtr const & scalarArray);
+    explicit PVScalarArray(ScalarArrayConstPtr const & scalarArray);
 private:
     friend class PVDataCreate;
 };
 
 
+/**
+ * @brief Data interface for a structure,
+ *
+ */
 class epicsShareClass PVStructure : public PVField, public BitSetSerializable
 {
 public:
@@ -615,8 +663,8 @@ public:
     typedef PVStructure & reference;
     typedef const PVStructure & const_reference;
     /**
-     * Set the field to be immutable, i. e. it can no longer be modified.
-     * This is permanent, i.e. once done the field can onot be made mutable.
+     * Set the field to be immutable, i.e. it can no longer be modified.
+     * This is permanent, i.e. once done the field cannot be made mutable.
      */
     virtual void setImmutable();
     /**
@@ -636,23 +684,42 @@ public:
      */
     PVFieldPtr getSubField(std::string const &fieldName) const;
 
+    /**
+     * Get a subfield with the specified name.
+     * @param fieldName a '.' separated list of child field names (no whitespace allowed)
+     * @returns A pointer to the sub-field or null if field does not exist or has a different type
+     * @code
+     *   PVIntPtr ptr = pvStruct->getSubField<PVInt>("substruct.leaffield");
+     * @endcode
+     */
     template<typename PVT>
-    std::tr1::shared_ptr<PVT> getSubField(std::string const &fieldName) const
+    FORCE_INLINE std::tr1::shared_ptr<PVT> getSubField(std::string const &fieldName) const
     {
-        PVFieldPtr pvField = getSubField(fieldName);
-        if (pvField.get())
-            return std::tr1::dynamic_pointer_cast<PVT>(pvField);
+        return this->getSubField<PVT>(fieldName.c_str());
+    }
+
+    template<typename PVT>
+    std::tr1::shared_ptr<PVT> getSubField(const char *name) const
+    {
+        PVField *raw = getSubFieldImpl(name, false);
+        if (raw)
+            return std::tr1::dynamic_pointer_cast<PVT>(raw->shared_from_this());
         else
             return std::tr1::shared_ptr<PVT>();
     }
-    
+
     /**
      * Get the subfield with the specified offset.
      * @param fieldOffset The offset.
      * @return Pointer to the field or null if field does not exist.
      */
     PVFieldPtr getSubField(std::size_t fieldOffset) const;
-    
+
+    /**
+     * Get the subfield with the specified offset.
+     * @param fieldOffset The offset.
+     * @return Pointer to the field or null if field does not exist.
+     */
     template<typename PVT>
     std::tr1::shared_ptr<PVT> getSubField(std::size_t fieldOffset) const
     {
@@ -664,127 +731,51 @@ public:
     }
 
     /**
-     * Get a boolean field with the specified name.
-     * No longer needed. Use templete version of getSubField
-     * @param fieldName The name of the field to get.
-     * @return Pointer to the field of null if a field with that name and type does not exist.
+     * Get a subfield with the specified name.
+     * @param fieldName a '.' separated list of child field names (no whitespace allowed)
+     * @returns A reference to the sub-field (never NULL)
+     * @throws std::runtime_error if the requested sub-field doesn't exist, or has a different type
      */
-    PVBooleanPtr getBooleanField(std::string const &fieldName) ;
+    FORCE_INLINE PVFieldPtr getSubFieldT(std::string const &fieldName) const
+    {
+        return getSubFieldImpl(fieldName.c_str())->shared_from_this();
+    }
+
     /**
-     * Get a byte field with the specified name.
-     * No longer needed. Use templete version of getSubField
-     * @param fieldName The name of the field to get.
-     * @return Pointer to the field of null if a field with that name and type does not exist.
+     * Get a subfield with the specified name.
+     * @param fieldName a '.' separated list of child field names (no whitespace allowed)
+     * @returns A reference to the sub-field (never NULL)
+     * @throws std::runtime_error if the requested sub-field doesn't exist, or has a different type
+     * @code
+     *   PVIntPtr ptr = pvStruct->getSubFieldT<PVInt>("substruct.leaffield");
+     * @endcode
      */
-    PVBytePtr getByteField(std::string const &fieldName) ;
+    template<typename PVT>
+    FORCE_INLINE std::tr1::shared_ptr<PVT> getSubFieldT(std::string const &fieldName) const
+    {
+        return this->getSubFieldT<PVT>(fieldName.c_str());
+    }
+
+    template<typename PVT>
+    std::tr1::shared_ptr<PVT> getSubFieldT(const char *name) const;
+
     /**
-     * Get a short field with the specified name.
-     * No longer needed. Use templete version of getSubField
-     * @param fieldName The name of the field to get.
-     * @return Pointer to the field of null if a field with that name and type does not exist.
+     * Get the subfield with the specified offset.
+     * @param fieldOffset The offset.
+     * @returns A reference to the sub-field (never NULL)
+     * @throws std::runtime_error if the requested sub-field doesn't exist
      */
-    PVShortPtr getShortField(std::string const &fieldName) ;
+    PVFieldPtr getSubFieldT(std::size_t fieldOffset) const;
+
     /**
-     * Get a int field with the specified name.
-     * No longer needed. Use templete version of getSubField
-     * @param fieldName The name of the field to get.
-     * @return Pointer to the field of null if a field with that name and type does not exist.
+     * Get the subfield with the specified offset.
+     * @param fieldOffset The offset.
+     * @returns A reference to the sub-field (never NULL)
+     * @throws std::runtime_error if the requested sub-field doesn't exist, or has a different type 
      */
-    PVIntPtr getIntField(std::string const &fieldName) ;
-    /**
-     * Get a long field with the specified name.
-     * No longer needed. Use templete version of getSubField
-     * @param fieldName The name of the field to get.
-     * @return Pointer to the field of null if a field with that name and type does not exist.
-     */
-    PVLongPtr getLongField(std::string const &fieldName) ;
-    /**
-     * Get an unsigned byte field with the specified name.
-     * No longer needed. Use templete version of getSubField
-     * @param fieldName The name of the field to get.
-     * @return Pointer to the field of null if a field with that name and type does not exist.
-     */
-    PVUBytePtr getUByteField(std::string const &fieldName) ;
-    /**
-     * Get an unsigned short field with the specified name.
-     * No longer needed. Use templete version of getSubField
-     * @param fieldName The name of the field to get.
-     * @return Pointer to the field of null if a field with that name and type does not exist.
-     */
-    PVUShortPtr getUShortField(std::string const &fieldName) ;
-    /**
-     * Get an unsigned int field with the specified name.
-     * No longer needed. Use templete version of getSubField
-     * @param fieldName The name of the field to get.
-     * @return Pointer to the field of null if a field with that name and type does not exist.
-     */
-    PVUIntPtr getUIntField(std::string const &fieldName) ;
-    /**
-     * Get an unsigned long field with the specified name.
-     * No longer needed. Use templete version of getSubField
-     * @param fieldName The name of the field to get.
-     * @return Pointer to the field of null if a field with that name and type does not exist.
-     */
-    PVULongPtr getULongField(std::string const &fieldName) ;
-    /**
-     * Get a float field with the specified name.
-     * No longer needed. Use templete version of getSubField
-     * @param fieldName The name of the field to get.
-     * @return Pointer to the field of null if a field with that name and type does not exist.
-     */
-    PVFloatPtr getFloatField(std::string const &fieldName) ;
-    /**
-     * Get a double field with the specified name.
-     * No longer needed. Use templete version of getSubField
-     * @param fieldName The name of the field to get.
-     * @return Pointer to the field of null if a field with that name and type does not exist.
-     */
-    PVDoublePtr getDoubleField(std::string const &fieldName) ;
-    /**
-     * Get a string field with the specified name.
-     * No longer needed. Use templete version of getSubField
-     * @param fieldName The name of the field to get.
-     * @return Pointer to the field of null if a field with that name and type does not exist.
-     */
-    PVStringPtr getStringField(std::string const &fieldName) ;
-    
-    /**
-     * Get a structure field with the specified name.
-     * No longer needed. Use templete version of getSubField
-     * @param fieldName The name of the field to get.
-     * @return Pointer to the field of null if a field with that name and type does not exist.
-     */
-    PVStructurePtr getStructureField(std::string const &fieldName) ;
-    /**
-     * Get a union field with the specified name.
-     * No longer needed. Use templete version of getSubField
-     * @param fieldName The name of the field to get.
-     * @return Pointer to the field of null if a field with that name and type does not exist.
-     */
-    PVUnionPtr getUnionField(std::string const &fieldName) ;
-    /**
-     * Get a scalarArray field with the specified name.
-     * No longer needed. Use templete version of getSubField
-     * @param fieldName The name of the field to get.
-     * @param elementType The element type.
-     * @return Pointer to the field of null if a field with that name and type does not exist.
-     */
-    PVScalarArrayPtr getScalarArrayField(
-        std::string const &fieldName,ScalarType elementType) ;
-    /**
-     * Get a structureArray field with the specified name.
-     * No longer needed. Use templete version of getSubField
-     * @param fieldName The name of the field to get.
-     * @return Pointer to the field of null if a field with that name and type does not exist.
-     */
-    PVStructureArrayPtr getStructureArrayField(std::string const &fieldName) ;
-    /**
-     * Get a unionArray field with the specified name.
-     * No longer needed. Use templete version of getSubField
-     * @param fieldName The name of the field to get.
-     * @return Pointer to the field of null if a field with that name and type does not exist.
-     */
-    PVUnionArrayPtr getUnionArrayField(std::string const &fieldName) ;
+    template<typename PVT>
+    std::tr1::shared_ptr<PVT> getSubFieldT(std::size_t fieldOffset) const;
+
     /**
      * Serialize.
      * @param pbuffer The byte buffer.
@@ -819,7 +810,7 @@ public:
      * Constructor
      * @param structure The introspection interface.
      */
-    PVStructure(StructureConstPtr const & structure);
+    explicit PVStructure(StructureConstPtr const & structure);
     /**
      * Constructor
      * @param structure The introspection interface.
@@ -829,7 +820,14 @@ public:
 
     virtual std::ostream& dumpValue(std::ostream& o) const;
 
+    void copy(const PVStructure& from);
+
+    void copyUnchecked(const PVStructure& from);
+    void copyUnchecked(const PVStructure& from, const BitSet& maskBitSet, bool inverse = false);
+
 private:
+    PVField *getSubFieldImpl(const char *name, bool throws = true) const;
+
     static PVFieldPtr nullPVField;
     static PVBooleanPtr nullPVBoolean;
     static PVBytePtr nullPVByte;
@@ -856,8 +854,43 @@ private:
 };
 
 
+template<typename PVT>
+std::tr1::shared_ptr<PVT> PVStructure::getSubFieldT(const char *name) const
+{
+    std::tr1::shared_ptr<PVT> pvField = std::tr1::dynamic_pointer_cast<PVT>(
+        getSubFieldImpl(name)->shared_from_this());
+
+    if (pvField.get())
+        return pvField;
+    else
+    {
+        std::stringstream ss;
+        ss << "Failed to get field: " << name << " (Field has wrong type)";
+        throw std::runtime_error(ss.str());
+    }
+}
+
+template<typename PVT>
+std::tr1::shared_ptr<PVT> PVStructure::getSubFieldT(std::size_t fieldOffset) const
+{
+    std::tr1::shared_ptr<PVT> pvField = std::tr1::dynamic_pointer_cast<PVT>(
+        getSubFieldT(fieldOffset));
+    if (pvField.get())
+        return pvField;
+    else
+    {
+        std::stringstream ss;
+        ss << "Failed to get field with offset "
+           << fieldOffset << " (Field has wrong type)";
+        throw std::runtime_error(ss.str());
+    }
+}
+
 /**
- * PVUnion has a single subfield which has a type specified by a union introspection interface.
+ * @brief PVUnion has a single subfield.
+ *
+ * The type for the subfield is specified by a union introspection interface.
+ *
  */
 class epicsShareClass PVUnion : public PVField
 {
@@ -873,7 +906,7 @@ public:
 	/**
 	 * Undefined index.
 	 * Default value upon PVUnion construction. Can be set by the user.
-	 * Corresponds to {@code null} value.
+	 * Corresponds to @c null value.
 	 */
 	static int32 UNDEFINED_INDEX;
 
@@ -884,8 +917,8 @@ public:
     UnionConstPtr getUnion() const;
 
     /**
-     * Get the {@code PVField} value stored in the field.
-     * @return {@code PVField} value of field, {@code null} if {@code getSelectedIndex() == UNDEFINED_INDEX}.
+     * Get the @c PVField value stored in the field.
+     * @return @c PVField value of field, @c null if {@code getSelectedIndex() == UNDEFINED_INDEX}.
      */
     PVFieldPtr get() const;
    
@@ -897,8 +930,8 @@ public:
     /**
      * Select field (set index) and get the field at the index.
      * @param index index of the field to select.
-     * @return corresponding PVField (of undetermined value), {@code null} if {@code index == UNDEFINED_INDEX}.
-     * @throws {@code std::invalid_argument} if index is invalid (out of range).
+     * @return corresponding PVField (of undetermined value), @c null if {@code index == UNDEFINED_INDEX}.
+     * @throws std::invalid_argument if index is invalid (out of range).
      */
     PVFieldPtr select(int32 index);
 
@@ -911,7 +944,7 @@ public:
      * Select field (set index) and get the field by given name.
      * @param fieldName the name of the field to select.
      * @return corresponding PVField (of undetermined value).
-     * @throws {@code std::invalid_argument} if field does not exist.
+     * @throws std::invalid_argument if field does not exist.
      */
     PVFieldPtr select(std::string const & fieldName);
 
@@ -933,27 +966,30 @@ public:
     std::string getSelectedFieldName() const;
     
     /**
-     * Set the {@code PVField} (by reference!) as selected field.
-     * If a value is not a valid union field an {@code std::invalid_argument} exception is thrown.
+     * Set the @c PVField (by reference!) as selected field.
+     * If a value is not a valid union field an @c std::invalid_argument
+     * exception is thrown.
      * @param value the field to set.
      */
     void set(PVFieldPtr const & value);
     /**
-     * Set the {@code PVField} (by reference!) as field at given index.
-     * If a value is not a valid union field an {@code std::invalid_argument} exception is thrown.
-     * Use {@code select(int)} to put by value.
+     * Set the @c PVField (by reference!) as field at given index.
+     * If a value is not a valid union field an @c std::invalid_argument
+     * exception is thrown.
+     * Use @c select(int32) to put by value.
      * @param index index of a field to put.
      * @param value the field to set.
-     * @see #select(int)
+     * @see #select(int32)
      */
     void set(int32 index, PVFieldPtr const & value);
     /**
-     * Set the {@code PVField} (by reference!) as field by given name.
-     * If a value is not a valid union field an {@code std::invalid_argument} exception is thrown.
-     * Use {@code select(std::string)} to put by value.
+     * Set the @c PVField (by reference!) as field by given name.
+     * If a value is not a valid union field an @c std::invalid_argument
+     * exception is thrown.
+     * Use @c select(std::string const &) to put by value.
      * @param fieldName Name of the field to put.
      * @param value the field to set.
-     * @see #select(std::string)
+     * @see #select(std::string const &)
      */
     void set(std::string const & fieldName, PVFieldPtr const & value);
 
@@ -975,11 +1011,16 @@ public:
      * Constructor
      * @param punion The introspection interface.
      */
-    PVUnion(UnionConstPtr const & punion);
+    explicit PVUnion(UnionConstPtr const & punion);
 
     virtual std::ostream& dumpValue(std::ostream& o) const;
 
+    void copy(const PVUnion& from);
+    void copyUnchecked(const PVUnion& from);
+
 private:
+    static PVDataCreatePtr pvDataCreate;
+
     friend class PVDataCreate;
     UnionConstPtr unionPtr;
 
@@ -1018,11 +1059,11 @@ namespace detail {
         PVVectorStorage() : Base() {}
 
         template<typename A>
-        PVVectorStorage(A a) : Base(a) {}
+        explicit PVVectorStorage(A a) : Base(a) {}
     public:
         virtual ~PVVectorStorage(){};
 
-        // Primative array manipulations
+        // Primitive array manipulations
 
         //! Fetch a read-only view of the current array data
         virtual const_svector view() const = 0;
@@ -1064,6 +1105,13 @@ namespace detail {
     };
 } // namespace detail
 
+/**
+ * @brief template class for all extensions of PVArray.
+ *
+ * The direct extensions are pvBooleanArray, pvByteArray, ..., pvStringArray.
+ * There are specializations for PVStringArray, PVStructureArray, and PVUnionArray.
+ *
+ */
 template<typename T>
 class epicsShareClass PVValueArray : public detail::PVVectorStorage<T,PVScalarArray> {
     typedef detail::PVVectorStorage<T,PVScalarArray> base_t;
@@ -1085,6 +1133,9 @@ public:
      */
     virtual ~PVValueArray() {}
 
+    /**
+     * Get introspection interface.
+     */
     virtual ArrayConstPtr getArray() const
     {
         return std::tr1::static_pointer_cast<const Array>(this->getField());
@@ -1122,14 +1173,15 @@ protected:
         this->replace(shared_vector_convert<const T>(in));
     }
 
-    PVValueArray(ScalarArrayConstPtr const & scalar)
+    explicit PVValueArray(ScalarArrayConstPtr const & scalar)
     : base_t(scalar) {}
     friend class PVDataCreate;
 };
 
 
 /**
- * Data class for a structureArray
+ * @brief Data class for a structureArray
+ *
  */
 template<>
 class epicsShareClass PVValueArray<PVStructurePtr> : public detail::PVVectorStorage<PVStructurePtr,PVArray>
@@ -1211,8 +1263,11 @@ public:
     virtual std::ostream& dumpValue(std::ostream& o) const;
     virtual std::ostream& dumpValue(std::ostream& o, std::size_t index) const;
 
+    void copy(const PVStructureArray& from);
+    void copyUnchecked(const PVStructureArray& from);
+
 protected:
-    PVValueArray(StructureArrayConstPtr const & structureArray)
+    explicit PVValueArray(StructureArrayConstPtr const & structureArray)
         :base_t(structureArray)
         ,structureArray(structureArray)
     {}
@@ -1225,7 +1280,8 @@ private:
 
 
 /**
- * Data class for a unionArray
+ * @brief Data class for a unionArray
+ *
  */
 template<>
 class epicsShareClass PVValueArray<PVUnionPtr> : public detail::PVVectorStorage<PVUnionPtr,PVArray>
@@ -1307,8 +1363,11 @@ public:
     virtual std::ostream& dumpValue(std::ostream& o) const;
     virtual std::ostream& dumpValue(std::ostream& o, std::size_t index) const;
 
+    void copy(const PVUnionArray& from);
+    void copyUnchecked(const PVUnionArray& from);
+
 protected:
-    PVValueArray(UnionArrayConstPtr const & unionArray)
+    explicit PVValueArray(UnionArrayConstPtr const & unionArray)
         :base_t(unionArray)
         ,unionArray(unionArray)
     {}
@@ -1359,7 +1418,8 @@ typedef PVValueArray<std::string> PVStringArray;
 typedef std::tr1::shared_ptr<PVStringArray> PVStringArrayPtr;
 
 /**
- * This is a singlton class for creating data instances.
+ * @brief This is a singleton class for creating data instances.
+ *
  */
 class epicsShareClass PVDataCreate {
 public:
@@ -1390,7 +1450,7 @@ public:
     PVScalarPtr createPVScalar(ScalarConstPtr const & scalar);
     /**
      * Create an implementation of a scalar field. A Scalar introspection interface is created.
-     * @param fieldType The field type.
+     * @param scalarType The scalar type.
      * @return The PVScalar implementation.
      */
     PVScalarPtr createPVScalar(ScalarType scalarType);
@@ -1403,7 +1463,7 @@ public:
     PVScalarPtr createPVScalar(PVScalarPtr const & scalarToClone);
     /**
      * template version
-     * @param PVT must ve a valid pvType
+     * @tparam PVT must be a valid PVType
      * @return The PVScalar implementation.
      */
     template<typename PVT>
@@ -1435,7 +1495,7 @@ public:
 
     /**
      * Create implementation for PVUnion.
-     * @param union The introspection interface.
+     * @param punion The introspection interface.
      * @return The PVUnion implementation
      */
     PVUnionPtr createPVUnion(UnionConstPtr const & punion);
@@ -1453,13 +1513,12 @@ public:
 
     /**
      * Create an implementation of an array field reusing the Array introspection interface.
-     * @param array The introspection interface.
+     * @param scalarArray The introspection interface.
      * @return The PVScalarArray implementation.
      */
     PVScalarArrayPtr createPVScalarArray(ScalarArrayConstPtr const & scalarArray);
     /**
      * Create an implementation for an array field. An Array introspection interface is created.
-     * @param parent The parent interface.
      * @param elementType The element type.
      * @return The PVScalarArray implementation.
      */
@@ -1467,13 +1526,13 @@ public:
     /**
      * Create an implementation of an array field by cloning an existing PVArray.
      * The new PVArray will have the same value and auxInfo as the original.
-     * @param arrayToClone The PVScalarArray to clone.
+     * @param scalarArrayToClone The PVScalarArray to clone.
      * @return The PVScalarArray implementation.
      */
     PVScalarArrayPtr createPVScalarArray(PVScalarArrayPtr const  & scalarArrayToClone);
     /**
      * template version
-     * @param PVT must ve a valid pvType
+     * @tparam PVT must be a valid pvType
      * @return The PVScalarArray implementation.
      */
     template<typename PVAT>
@@ -1509,7 +1568,7 @@ public:
     PVUnionArrayPtr createPVUnionArray(UnionArrayConstPtr const & unionArray);
     /**
      * Create an implementation of an array with union elements.
-     * @param punion The introspection interface tht is used to create UnionArrayConstPtr.
+     * @param punion The introspection interface that is used to create UnionArrayConstPtr.
      * All elements share the same introspection interface.
      * @return The PVUnionArray implementation.
      */
@@ -1529,11 +1588,32 @@ private:
 };
 
 /**
- * Get the single class that implemnents PVDataCreate
- * @param The PVDataCreate factory.
+ * Get the single class that implements PVDataCreate
+ * @return The PVDataCreate factory.
  */
-
 epicsShareExtern PVDataCreatePtr getPVDataCreate();
 
+bool epicsShareExtern operator==(const PVField&, const PVField&);
+
+static inline bool operator!=(const PVField& a, const PVField& b)
+{return !(a==b);}
+
 }}
+
+/**
+ * stream support for pvField
+ */
+namespace std{
+    epicsShareExtern std::ostream& operator<<(std::ostream& o, const epics::pvData::PVField *ptr);
+}
+
+#undef USAGE_DEPRECATED
+#undef USAGE_ERROR
+
 #endif  /* PVDATA_H */
+
+/** @page Overview Documentation
+ *
+ * <a href = "pvDataCPP.html">pvData.html</a>
+ *
+ */

src/pv/pvIntrospect.h

@@ -163,7 +163,8 @@ enum Type {
 };
 
 /**
- * Convenience functions for Type.
+ * @brief Convenience functions for Type.
+ *
  */
 namespace TypeFunc {
     /**
@@ -182,51 +183,51 @@ epicsShareExtern std::ostream& operator<<(std::ostream& o, const Type& type);
  */
 enum ScalarType {
     /**
-     * The type is boolean, i. e. value can be {@code false} or {@code true}
+     * The type is boolean, i.e. value can be @c false or @c true
      */
     pvBoolean,
     /**
-     * The type is byte, i. e. a 8 bit signed integer.
+     * The type is byte, i.e. a 8 bit signed integer.
      */
     pvByte,
     /**
-     * The type is short, i. e. a 16 bit signed integer.
+     * The type is short, i.e. a 16 bit signed integer.
      */
     pvShort,
     /**
-     * The type is int, i. e. a 32 bit signed integer.
+     * The type is int, i.e. a 32 bit signed integer.
      */
     pvInt,
     /**
-     * The type is long, i. e. a 64 bit signed integer.
+     * The type is long, i.e. a 64 bit signed integer.
      */
     pvLong,
     /**
-     * The type is unsigned byte, i. e. a 8 bit unsigned integer.
+     * 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.
+     * 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.
+     * 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.
+     * The type is unsigned long, i.e. a 64 bit unsigned integer.
      */
     pvULong,
     /**
-     * The type is float, i. e. 32 bit IEEE floating point,
+     * The type is float, i.e. 32 bit IEEE floating point,
      */
     pvFloat,
     /**
-     * The type is float, i. e. 64 bit IEEE floating point,
+     * The type is float, i.e. 64 bit IEEE floating point,
      */
     pvDouble,
     /**
-     * The type is string, i. e. a UTF8 character string.
+     * The type is string, i.e. a UTF8 character string.
      */
     pvString
 };
@@ -234,29 +235,30 @@ enum ScalarType {
 #define MAX_SCALAR_TYPE pvString
 
 /**
- * Convenience functions for ScalarType.
+ * @brief Convenience functions for ScalarType.
+ *
  */
 namespace ScalarTypeFunc {
     /**
-     * Is the type an integer, i. e. is it one of byte,...ulong
+     * 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.
      */
     epicsShareExtern bool isInteger(ScalarType scalarType);
     /**
-     * Is the type an unsigned integer, i. e. is it one of ubyte,...ulong
+     * 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.
      */
     epicsShareExtern bool isUInteger(ScalarType scalarType);
     /**
-     * Is the type numeric, i. e. is it one of byte,...,double
+     * 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
      */
     epicsShareExtern bool isNumeric(ScalarType scalarType);
     /**
-     * Is the type primitive, i. e. not string
+     * Is the type primitive, i.e. not string
      * @param  scalarType The type.
      * @return (false,true) if the scalarType is primitive.
      */
@@ -283,7 +285,8 @@ epicsShareExtern std::ostream& operator<<(std::ostream& o, const ScalarType& sca
 
 
 /**
- * This class implements introspection object for field.
+ * @brief This class implements introspection object for field.
+ *
  */
 class epicsShareClass Field : 
     virtual public Serializable,
@@ -315,7 +318,7 @@ public:
 protected:
     /**
      * Constructor
-     * @param  fieldName The field type.
+     * @param  type The field type.
      */
    Field(Type type);
 private:
@@ -335,7 +338,8 @@ epicsShareExtern std::ostream& operator<<(std::ostream& o, const Field& field);
 
 
 /**
- * This class implements introspection object for Scalar.
+ * @brief This class implements introspection object for Scalar.
+ *
  */
 class epicsShareClass Scalar : public Field{
 public:
@@ -372,7 +376,8 @@ private:
 };
 
 /**
- * This class implements introspection object for BoundedString.
+ * @brief This class implements introspection object for BoundedString.
+ *
  */
 class epicsShareClass BoundedString : public Scalar{
 public:
@@ -398,7 +403,8 @@ private:
 };
 
 /**
- * This class implements introspection object for Array.
+ * @brief This class implements introspection object for Array.
+ *
  */
 class epicsShareClass Array : public Field{
 public:
@@ -427,20 +433,15 @@ public:
 protected:
     /**
      * Constructor
-     * @param  fieldName The field type.
+     * @param type The field type.
      */
    Array(Type type);
 
 };
 
-
-
-
-
-
-
 /**
- * This class implements introspection object for scalar array.
+ * @brief This class implements introspection object for scalar array.
+ *
  */
 class epicsShareClass ScalarArray : public Array{
 public:
@@ -484,7 +485,8 @@ private:
 
 
 /**
- * This class implements introspection object for bounded scalar array.
+ * @brief This class implements introspection object for bounded scalar array.
+ *
  */
 class epicsShareClass BoundedScalarArray : public ScalarArray{
 public:
@@ -518,7 +520,8 @@ private:
 };
 
 /**
- * This class implements introspection object for bounded scalar array.
+ * @brief This class implements introspection object for bounded scalar array.
+ *
  */
 class epicsShareClass FixedScalarArray : public ScalarArray{
 public:
@@ -551,12 +554,9 @@ private:
     friend class FieldCreate;
 };
 
-
-
-
-
 /**
- * This class implements introspection object for a structureArray
+ * @brief This class implements introspection object for a structureArray
+ *
  */
 class epicsShareClass StructureArray : public Array{
 public:
@@ -597,7 +597,8 @@ private:
 };
 
 /**
- * This class implements introspection object for a unionArray
+ * @brief This class implements introspection object for a unionArray
+ *
  */
 class epicsShareClass UnionArray : public Array{
 public:
@@ -625,7 +626,7 @@ public:
 protected:
     /**
      * Constructor.
-     * @param union The introspection interface for the elements.
+     * @param _punion The introspection interface for the elements.
      */
     UnionArray(UnionConstPtr const & _punion);
     /**
@@ -638,7 +639,8 @@ private:
 };
 
 /**
- * This class implements introspection object for a structure.
+ * @brief This class implements introspection object for a structure.
+ *
  */
 class epicsShareClass Structure : public Field {
 public:
@@ -647,7 +649,13 @@ public:
     /**
      * Default structure ID.
      */
-    static std::string DEFAULT_ID;
+    static const std::string DEFAULT_ID;
+
+    /**
+     * Get the default structure ID.
+     * @return The default structure ID.
+     */
+    static const std::string & defaultId();
 
     /**
      * Destructor.
@@ -668,13 +676,35 @@ public:
      * This will hold a null pointer if the field is not in the structure.
      */
     FieldConstPtr getField(std::string const &fieldName) const;
+
+    template<typename FT>
+    std::tr1::shared_ptr<const FT> getField(std::string const &fieldName) const
+    {
+        FieldConstPtr field = getField(fieldName);
+        if (field.get())
+            return std::tr1::dynamic_pointer_cast<const FT>(field);
+        else
+            return std::tr1::shared_ptr<const FT>();
+    }
+
     /**
      * Get the field for the specified fieldName.
-     * @param fieldName The index of the field to get;
+     * @param index 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];}
+    FieldConstPtr getField(std::size_t index) const {return fields.at(index);}
+
+    template<typename FT>
+    std::tr1::shared_ptr<const FT> getField(std::size_t index) const
+    {
+        FieldConstPtr field = getField(index);
+        if (field.get())
+            return std::tr1::dynamic_pointer_cast<const FT>(field);
+        else
+            return std::tr1::shared_ptr<const FT>();
+    }
+
     /**
      * Get the field index for the specified fieldName.
      * @return The introspection interface.
@@ -696,7 +726,7 @@ public:
      * @param fieldIndex The index of the desired field.
      * @return The fieldName.
      */
-    std::string getFieldName(std::size_t fieldIndex) const {return fieldNames[fieldIndex];}
+    std::string getFieldName(std::size_t fieldIndex) const {return fieldNames.at(fieldIndex);}
 
     virtual std::string getID() const;
 
@@ -706,7 +736,7 @@ public:
     virtual void deserialize(ByteBuffer *buffer, DeserializableControl *control);
     
 protected:
-    Structure(StringArray const & fieldNames, FieldConstPtrArray const & fields, std::string const & id = DEFAULT_ID);
+    Structure(StringArray const & fieldNames, FieldConstPtrArray const & fields, std::string const & id = defaultId());
 private:
     StringArray fieldNames;
     FieldConstPtrArray fields;
@@ -719,7 +749,8 @@ private:
 };
 
 /**
- * This class implements introspection object for a union.
+ * @brief This class implements introspection object for a union.
+ *
  */
 class epicsShareClass Union : public Field {
 public:
@@ -728,12 +759,24 @@ public:
     /**
      * Default union ID.
      */
-    static std::string DEFAULT_ID;
+    static const std::string DEFAULT_ID;
+
+    /**
+     * Get the default union ID.
+     * @return The default union ID.
+     */
+    static const std::string & defaultId();
 
     /**
      * Default variant union ID.
      */
-    static std::string ANY_ID;
+    static const std::string ANY_ID;
+
+    /**
+     * Get the default variant union ID.
+     * @return The default variant union ID.
+     */
+    static const std::string & anyId();
 
     /**
      * Destructor.
@@ -754,13 +797,35 @@ public:
      * This will hold a null pointer if the field is not in the union.
      */
     FieldConstPtr getField(std::string const &fieldName) const;
+
+    template<typename FT>
+    std::tr1::shared_ptr<const FT> getField(std::string const &fieldName) const
+    {
+        FieldConstPtr field = getField(fieldName);
+        if (field.get())
+            return std::tr1::dynamic_pointer_cast<const FT>(field);
+        else
+            return std::tr1::shared_ptr<const FT>();
+    }
+
     /**
      * Get the field for the specified fieldName.
-     * @param fieldName The index of the field to get;
+     * @param index The index of the field to get;
      * @return The introspection interface.
      * This will hold a null pointer if the field is not in the union.
      */
-    FieldConstPtr getField(std::size_t index) const {return fields[index];}
+    FieldConstPtr getField(std::size_t index) const {return fields.at(index);}
+
+    template<typename FT>
+    std::tr1::shared_ptr<const FT> getField(std::size_t index) const
+    {
+        FieldConstPtr field = getField(index);
+        if (field.get())
+            return std::tr1::dynamic_pointer_cast<const FT>(field);
+        else
+            return std::tr1::shared_ptr<const FT>();
+    }
+
     /**
      * Get the field index for the specified fieldName.
      * @return The introspection interface.
@@ -782,7 +847,7 @@ public:
      * @param fieldIndex The index of the desired field.
      * @return The fieldName.
      */
-    std::string getFieldName(std::size_t fieldIndex) const {return fieldNames[fieldIndex];}
+    std::string getFieldName(std::size_t fieldIndex) const {return fieldNames.at(fieldIndex);}
     /**
      * Check if this union is variant union (aka any type).
      * @return <code>true</code> if this union is variant union, otherwise <code>false</code>.
@@ -798,7 +863,7 @@ public:
     
 protected:
    Union();
-   Union(StringArray const & fieldNames, FieldConstPtrArray const & fields, std::string const & id = DEFAULT_ID);
+   Union(StringArray const & fieldNames, FieldConstPtrArray const & fields, std::string const & id = defaultId());
 private:
    StringArray fieldNames;
    FieldConstPtrArray fields;
@@ -817,8 +882,9 @@ class FieldBuilder;
 typedef std::tr1::shared_ptr<FieldBuilder> FieldBuilderPtr;
 
 /**
- * Interface for in-line creating of introspection interfaces.
- * One instance can be used to create multiple {@code Field} instances.
+ * @brief Interface for in-line creating of introspection interfaces.
+ *
+ * One instance can be used to create multiple @c Field instances.
  * An instance of this object must not be used concurrently (an object has a state).
  * @author mse
  */
@@ -829,127 +895,127 @@ public:
 	/**
 	 * Set ID of an object to be created.
 	 * @param id id to be set.
-     * @return this instance of a {@code FieldBuilder}.
+     * @return this instance of a @c FieldBuilder.
 	 */
 	FieldBuilderPtr setId(std::string const & id);
 
     /**
-     * Add a {@code Scalar}.
+     * Add a @c Scalar.
      * @param name name of the array.
      * @param scalarType type of a scalar to add.
-     * @return this instance of a {@code FieldBuilder}.
+     * @return this instance of a @c FieldBuilder.
      */
     FieldBuilderPtr add(std::string const & name, ScalarType scalarType);
 
     /**
-     * Add a {@code BoundedString}.
+     * Add a @c BoundedString.
      * @param name name of the array.
      * @param maxLength a string maximum length.
-     * @return this instance of a {@code FieldBuilder}.
+     * @return this instance of a @c FieldBuilder.
      */
     FieldBuilderPtr addBoundedString(std::string const & name, std::size_t maxLength);
 
     /**
-     * Add a {@code Field} (e.g. {@code Structure}, {@code Union}).
+     * Add a @c Field (e.g. @c Structure, @c Union).
      * @param name name of the array.
      * @param field a field to add.
-     * @return this instance of a {@code FieldBuilder}.
+     * @return this instance of a @c FieldBuilder.
      */
     FieldBuilderPtr add(std::string const & name, FieldConstPtr const & field);
 
     /**
-     * Add variable size array of {@code Scalar} elements.
+     * Add variable size array of @c Scalar elements.
      * @param name name of the array.
      * @param scalarType type of a scalar element.
-     * @return this instance of a {@code FieldBuilder}.
+     * @return this instance of a @c FieldBuilder.
      */
     FieldBuilderPtr addArray(std::string const & name, ScalarType scalarType);
     
     /**
-     * Add fixed-size array of {@code Scalar} elements.
+     * Add fixed-size array of @c Scalar elements.
      * @param name name of the array.
      * @param scalarType type of a scalar element.
      * @param size Array fixed size.
-     * @return this instance of a {@code FieldBuilder}.
+     * @return this instance of a @c FieldBuilder.
      */
     FieldBuilderPtr addFixedArray(std::string const & name, ScalarType scalarType, std::size_t size);
 
     /**
-     * Add bounded-size array of {@code Scalar} elements.
+     * Add bounded-size array of @c Scalar elements.
      * @param name name of the array.
      * @param scalarType type of a scalar element.
      * @param bound Array maximum capacity (size).
-     * @return this instance of a {@code FieldBuilder}.
+     * @return this instance of a @c FieldBuilder.
      */
     FieldBuilderPtr addBoundedArray(std::string const & name, ScalarType scalarType, std::size_t bound);
 
     /**
-     * Add array of {@code Field} elements.
+     * Add array of @c Field elements.
      * @param name name of the array.
-     * @param field a type of an array element.
-     * @return this instance of a {@code FieldBuilder}.
+     * @param element a type of an array element.
+     * @return this instance of a @c FieldBuilder.
      */
     FieldBuilderPtr addArray(std::string const & name, FieldConstPtr const & element);
 
     /**
-     * Create a {@code Structure}.
-     * This resets this instance state and allows new {@code Field} instance to be created.
-     * @return a new instance of a {@code Structure}.
+     * Create a @c Structure.
+     * This resets this instance state and allows new @c Field instance to be created.
+     * @return a new instance of a @c Structure.
      */
     StructureConstPtr createStructure();
     
     /**
-     * Create an {@code Union}.
-     * This resets this instance state and allows new {@code Field} instance to be created.
-     * @return a new instance of an {@code Union}.
+     * Create an @c Union.
+     * This resets this instance state and allows new @c Field instance to be created.
+     * @return a new instance of an @c Union.
      */
     UnionConstPtr createUnion();
 
     /**
-     * Add new nested {@code Structure}.
-     * {@code endNested()} method must be called
-     * to complete creation of the nested {@code Structure}.
+     * Add new nested @c Structure.
+     * endNested()  method must be called
+     * to complete creation of the nested @c Structure.
      * @param name nested structure name.
-     * @return a new instance of a {@code FieldBuilder} is returned.
+     * @return a new instance of a @c FieldBuilder is returned.
      * @see #endNested()
      */
     FieldBuilderPtr addNestedStructure(std::string const & name); 
     
     /**
-     * Add new nested {@code Union}.
-     * {@code endNested()} method must be called
-     * to complete creation of the nested {@code Union}.
+     * Add new nested @c Union.
+     * endNested() method must be called
+     * to complete creation of the nested @c Union.
      * @param name nested union name.
-     * @return a new instance of a {@code FieldBuilder} is returned.
+     * @return a new instance of a @c FieldBuilder is returned.
      * @see #endNested()
      */
     FieldBuilderPtr addNestedUnion(std::string const & name);
     
     /**
-     * Add new nested {@code Structure[]}.
-     * {@code endNested()} method must be called
-     * to complete creation of the nested {@code Structure}.
+     * Add new nested @c Structure[].
+     * endNested() method must be called
+     * to complete creation of the nested @c Structure.
      * @param name nested structure name.
-     * @return a new instance of a {@code FieldBuilder} is returned.
+     * @return a new instance of a @c FieldBuilder is returned.
      * @see #endNested()
      */
     FieldBuilderPtr addNestedStructureArray(std::string const & name); 
     
     /**
-     * Add new nested {@code Union[]}.
-     * {@code endNested()} method must be called
-     * to complete creation of the nested {@code Union}.
+     * Add new nested @c Union[].
+     * endNested() method must be called
+     * to complete creation of the nested @c Union.
      * @param name nested union name.
-     * @return a new instance of a {@code FieldBuilder} is returned.
+     * @return a new instance of a @c FieldBuilder is returned.
      * @see #endNested()
      */
     FieldBuilderPtr addNestedUnionArray(std::string const & name);
 
     /**
      * Complete the creation of a nested object.
-     * @see #addNestedStructure(std::string)
-     * @see #addNestedUnion(std::string)
-     * @return a previous (parent) {@code FieldBuilder}.
+     * @see #addNestedStructure(std::string const & name)
+     * @see #addNestedUnion(std::string const & name)
+     * @return a previous (parent) @c FieldBuilder.
      */
     FieldBuilderPtr endNested();
 
@@ -981,114 +1047,113 @@ private:
 };
 
 /**
- * This is a singleton class for creating introspection interfaces.
+ * @brief This is a singleton class for creating introspection interfaces.
+ *
  */
 class epicsShareClass FieldCreate {
 public:
     static FieldCreatePtr getFieldCreate();
 	/**
-	 * Create a new instance of in-line {@code Field} builder.
-	 * @return a new instance of a {@code FieldBuilder}.
+	 * Create a new instance of in-line @c Field builder.
+	 * @return a new instance of a @c FieldBuilder.
 	 */
 	FieldBuilderPtr createFieldBuilder() const;
     /**
-     * Create a {@code ScalarField}.
+     * Create a @c 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.
+     * @return a @c Scalar interface for the newly created object.
+     * @throws IllegalArgumentException if an illegal type is specified.
      */
     ScalarConstPtr createScalar(ScalarType scalarType) const;
     /**
-     * Create a {@code BoundedString}.
+     * Create a @c BoundedString.
      * @param maxLength a string maximum length.
-     * @return a {@code BoundedString} interface for the newly created object.
-     * @throws An {@code IllegalArgumentException} if maxLength == 0.
+     * @return a @c BoundedString interface for the newly created object.
+     * @throws IllegalArgumentException if maxLength == 0.
      */
     BoundedStringConstPtr createBoundedString(std::size_t maxLength) const;
     /**
-     * Create an {@code Array} field, variable size array.
-     * @param elementType The {@code scalarType} for array elements
-     * @return An {@code Array} Interface for the newly created object.
+     * Create an @c Array field, variable size array.
+     * @param elementType The @c ScalarType for array elements
+     * @return An @c Array Interface for the newly created object.
      */
     ScalarArrayConstPtr createScalarArray(ScalarType elementType) const;
     /*
-     * Create an {@code Array} field, fixed size array.
-     * @param elementType The {@code scalarType} for array elements
+     * Create an @c Array field, fixed size array.
+     * @param elementType The @c ScalarType for array elements
      * @param size Fixed array size.
-     * @return An {@code Array} Interface for the newly created object.
+     * @return An @c Array Interface for the newly created object.
      */
     ScalarArrayConstPtr createFixedScalarArray(ScalarType elementType, std::size_t size) const;
     /**
-     * Create an {@code Array} field, bounded size array.
-     * @param elementType The {@code scalarType} for array elements
-     * @param size Array maximum capacity (bound).
-     * @return An {@code Array} Interface for the newly created object.
+     * Create an @c Array field, bounded size array.
+     * @param elementType The @c ScalarType for array elements
+     * @param bound Array maximum capacity.
+     * @return An @c Array Interface for the newly created object.
      */
      ScalarArrayConstPtr createBoundedScalarArray(ScalarType elementType, std::size_t bound) 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.
+      * Create an @c Array field that is has element type @c Structure
+      * @param structure The @c Structure for each array element.
+      * @return An @c Array Interface for the newly created object.
       */
     StructureArrayConstPtr createStructureArray(StructureConstPtr const & structure) const;
     /**
-     * Create a {@code Structure} field.
-     * @return a {@code Structure} interface for the newly created object.
+     * Create a @c Structure field.
+     * @return a @c Structure interface for the newly created object.
      */
     StructureConstPtr createStructure () 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.
+     * Create a @c Structure field.
+     * @param fieldNames the names of the fields for the structure.
+     * @param fields The array of @c Field objects for the structure.
+     * @return a @c Structure interface for the newly created object.
      */
     StructureConstPtr createStructure (
         StringArray const & fieldNames,
         FieldConstPtrArray const & fields) const;
     /**
-     * Create a {@code Structure} field with identification string.
+     * Create a @c 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.
+     * @param fieldNames the names of the fields for the structure.
+     * @param fields The array of @c Field objects for the structure.
+     * @return a @c Structure interface for the newly created object.
      */
     StructureConstPtr createStructure (
     	std::string const & id,
         StringArray const & fieldNames,
         FieldConstPtrArray const & fields) const;
      /**
-      * Create an {@code Array} field that is has element type <i>Union</i>
-      * @param fieldName The field name
-      * @param elementUnion The {@code Union} for each array element.
-      * @return An {@code Array} Interface for the newly created object.
+      * Create an @c Array field that is has element type @c Union
+      * @param punion The @c Union for each array element.
+      * @return An @c Array Interface for the newly created object.
       */
     UnionArrayConstPtr createUnionArray(UnionConstPtr const & punion) const;
     /**
-     * Create a variant {@code UnionArray} (aka any type) field.
-     * @return a {@code UnionArray} interface for the newly created object.
+     * Create a variant @c UnionArray (aka any type) field.
+     * @return a @c UnionArray interface for the newly created object.
      */
     UnionArrayConstPtr createVariantUnionArray() const;
     /**
-     * Create a variant {@code Union} (aka any type) field.
-     * @return a {@code Union} interface for the newly created object.
+     * Create a variant @c Union (aka any type) field.
+     * @return a @c Union interface for the newly created object.
      */
     UnionConstPtr createVariantUnion() const;
     /**
-     * Create a {@code Union} field.
-     * @param fieldNames The array of {@code fieldNames} for the union.
-     * @param fields The array of {@code fields} for the union.
-     * @return a {@code Union} interface for the newly created object.
+     * Create a @c Union field.
+     * @param fieldNames the names of the fields for the union.
+     * @param fields The @c Field for each fields for the union.
+     * @return a @c Union interface for the newly created object.
      */
     UnionConstPtr createUnion (
         StringArray const & fieldNames,
         FieldConstPtrArray const & fields) const;
     /**
-     * Create a {@code Union} field with identification string.
+     * Create a @c Union field with identification string.
      * @param id The identification string for the union.
-     * @param fieldNames The array of {@code fieldNames} for the union.
-     * @param fields The array of {@code fields} for the union.
-     * @return a {@code Union} interface for the newly created object.
+     * @param fieldNames the names of the fields for the union.
+     * @param fields The array of @c Field objects for the union.
+     * @return a @c Union interface for the newly created object.
      */
     UnionConstPtr createUnion (
     	std::string const & id,
@@ -1099,7 +1164,7 @@ public:
      * @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.
+     * @return a @c Structure interface for the newly created object.
      */
     StructureConstPtr appendField(
         StructureConstPtr const & structure,
@@ -1107,19 +1172,19 @@ public:
     /**
      * 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.
+     * @param fieldNames The names of the fields.
+     * @param fields The fields.
+     * @return a @c 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. 
+     * Deserialize @c Field instance from given byte buffer.
+     * @param buffer Buffer containing serialized @c Field instance. 
      * @param control Deserialization control instance.
-     * @return a deserialized {@code Field} instance.
+     * @return a deserialized @c Field instance.
      */
     FieldConstPtr deserialize(ByteBuffer* buffer, DeserializableControl* control) const;
         
@@ -1133,8 +1198,8 @@ private:
 };
 
 /**
- * Get the single class that implemnents FieldCreate,
- * @param The fieldCreate factory.
+ * Get the single class that implements FieldCreate,
+ * @return The fieldCreate factory.
  */
 epicsShareExtern FieldCreatePtr getFieldCreate();
 
@@ -1179,14 +1244,26 @@ OP(pvDouble, double)
 OP(pvString, std::string)
 #undef OP
 
+/**
+ * @brief Hash a Scalar
+ *
+ */
 struct ScalarHashFunction {
     size_t operator() (const Scalar& scalar) const { return scalar.getScalarType(); }
 };
 
+/**
+ * @brief Hash a ScalarArray
+ *
+ */
 struct ScalarArrayHashFunction {
     size_t operator() (const ScalarArray& scalarArray) const { return 0x10 | scalarArray.getElementType(); }
 };
 
+/**
+ * @brief Hash a Structure
+ *
+ */
 struct StructureHashFunction {
     size_t operator() (const Structure& /*structure*/) const { return 0; }
     // TODO hash
@@ -1194,9 +1271,47 @@ struct StructureHashFunction {
 //        return PRIME * Arrays.hashCode(fieldNames) + Arrays.hashCode(fields);
 };
 
+/**
+ * @brief Hash a StructureArray
+ *
+ */
 struct StructureArrayHashFunction {
     size_t operator() (const StructureArray& structureArray) const { StructureHashFunction shf; return (0x10 | shf(*(structureArray.getStructure()))); }
 };
 
+bool epicsShareExtern operator==(const Field&, const Field&);
+bool epicsShareExtern operator==(const Scalar&, const Scalar&);
+bool epicsShareExtern operator==(const ScalarArray&, const ScalarArray&);
+bool epicsShareExtern operator==(const Structure&, const Structure&);
+bool epicsShareExtern operator==(const StructureArray&, const StructureArray&);
+bool epicsShareExtern operator==(const Union&, const Union&);
+bool epicsShareExtern operator==(const UnionArray&, const UnionArray&);
+bool epicsShareExtern operator==(const BoundedString&, const BoundedString&);
+
+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);}
+static inline bool operator!=(const Union& a, const Union& b)
+{return !(a==b);}
+static inline bool operator!=(const UnionArray& a, const UnionArray& b)
+{return !(a==b);}
+static inline bool operator!=(const BoundedString& a, const BoundedString& b)
+{return !(a==b);}
+
 }}
+
+/**
+ * stream support for Field
+ */
+namespace std{
+    epicsShareExtern std::ostream& operator<<(std::ostream& o, const epics::pvData::Field *ptr);
+}
+
 #endif  /* PVINTROSPECT_H */

src/pv/pvSubArrayCopy.h

@@ -71,7 +71,7 @@ epicsShareExtern void copy(
     PVStructureArray & pvFrom,
     size_t fromOffset,
     size_t fromStride,
-    PVStructureArray & pvToo,
+    PVStructureArray & pvTo,
     size_t toOffset,
     size_t toStride,
     size_t count);
@@ -91,7 +91,7 @@ epicsShareExtern void copy(
     PVArray & pvFrom,
     size_t fromOffset,
     size_t fromStride,
-    PVArray & pvToo,
+    PVArray & pvTo,
     size_t toOffset,
     size_t toStride,
     size_t count);
@@ -111,7 +111,7 @@ epicsShareExtern void copy(
     PVArray::shared_pointer const & pvFrom,
     size_t fromOffset,
     size_t fromStride,
-    PVArray::shared_pointer & pvToo,
+    PVArray::shared_pointer & pvTo,
     size_t toOffset,
     size_t toStride,
     size_t count);

src/pv/pvType.h

@@ -49,11 +49,11 @@ namespace detail {
 }
 
 /**
- * This is a set of typdefs used by pvData.
+ * This is a set of typedefs used by pvData.
  */
 
 /**
- * boolean, i.e. can only have the values {@code false} or {@code true}
+ * boolean, i.e. can only have the values @c false or @c true
  */
 typedef detail::pick_type<int8_t, signed char,
                           detail::pick_type<uint8_t, char, unsigned char>::type

src/pv/standardField.h

@@ -25,7 +25,8 @@ class StandardField;
 typedef std::tr1::shared_ptr<StandardField> StandardFieldPtr;
 
 /**
- * Standard Fields is a class or creating or sharing Field objects for standard fields.
+ * @brief 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:
@@ -85,21 +86,21 @@ public:
     StructureConstPtr regUnion(
         UnionConstPtr const & punion,
         std::string const & properties);
-    /** Create a structure that has a varient union value field.
+    /** Create a structure that has a variant union value field.
      * @param properties A comma separated list of properties.
      * This is some combination of "alarm,timeStamp,display,control,valueAlarm".
      * @return The const shared pointer to the structure.
      */
     StructureConstPtr variantUnion(std::string const & properties);
     /** Create a structure that has a scalarArray value field.
-     * @param type The type.
+     * @param elementType The element type.
      * @param properties A comma separated list of properties.
      * This is some combination of "alarm,timeStamp,display,control,valueAlarm".
      * @return The const shared pointer to the structure.
      */
     StructureConstPtr scalarArray(ScalarType elementType, std::string const & properties);
     /** Create a structure that has a structureArray value field.
-     * @param type The type.
+     * @param structure The Structure introspection object for elements of the value field.
      * @param properties A comma separated list of properties.
      * This is some combination of "alarm,timeStamp,display,control,valueAlarm".
      * @return The const shared pointer to the structure.
@@ -108,7 +109,7 @@ public:
         StructureConstPtr const & structure,
         std::string const & properties);
     /** Create a structure that has a unionArray value field.
-     * @param type The type.
+     * @param punion The Union introspection object for elements of the value field.
      * @param properties A comma separated list of properties.
      * This is some combination of "alarm,timeStamp,display,control".
      * @return The const shared pointer to the structure.
@@ -117,7 +118,7 @@ public:
         UnionConstPtr const & punion,
         std::string const & properties);
     /** Create a structure that has an enumerated structure value field.
-     *  The id for the structure is "enum-t".
+     *  The id for the structure is "enum_t".
      * @return The const shared pointer to the structure.
      */
     StructureConstPtr enumerated();

src/pv/standardPVField.h

@@ -25,7 +25,8 @@ class StandardPVField;
 typedef std::tr1::shared_ptr<StandardPVField> StandardPVFieldPtr;
 
 /**
- * StandardPVField is a class or creating standard data fields.
+ * @brief 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.
@@ -53,7 +54,7 @@ public:
     PVStructurePtr scalar(ScalarType type,std::string const & properties);
     /**
      * Create a structure that has a scalar array value field.
-     * @param type The type.
+     * @param elementType The element scalar type.
      * @param properties A comma separated list of properties.
      * This is some combination of "alarm,timeStamp,display,control,valueAlarm".
      * @return The const shared pointer to the structure.
@@ -61,7 +62,7 @@ public:
     PVStructurePtr scalarArray(ScalarType elementType, std::string const & properties);
     /**
      * Create a structure that has a structure array value field.
-     * @param type The type.
+     * @param structure The Structure introspection object for elements of the value field.
      * @param properties A comma separated list of properties.
      * This is some combination of "alarm,timeStamp,display,control,valueAlarm".
      * @return The const shared pointer to the structure.
@@ -69,7 +70,7 @@ public:
     PVStructurePtr structureArray(StructureConstPtr const &structure,std::string const & properties);
     /**
      * Create a structure that has a union array value field.
-     * @param type The type.
+     * @param punion The Union introspection object for elements of the value field.
      * @param properties A comma separated list of properties.
      * This is some combination of "alarm,timeStamp,display,control,valueAlarm".
      * @return The const shared pointer to the structure.

src/pvMisc/bitSetUtil.h

@@ -18,8 +18,20 @@
 
 namespace epics { namespace pvData {
 
+/**
+ * @brief Compress a bitSet.
+ *
+ */
 class epicsShareClass BitSetUtil : private NoDefaultMethods {
 public:
+    /**
+     *  compress the bitSet for a pvStructure.
+     *  In all subfields of a structure have been modified then
+     *  the bit for the structure is set and all the subfield bits
+     *  are cleared.
+     *  @param bitSet this must be a valid bitSet for pvStructure.
+     *  @param pvStructure the structure.
+     */
     static bool compress(BitSetPtr const &bitSet,PVStructurePtr const &pvStructure);
 };
 

testApp/copy/testCreateRequest.cpp

@@ -30,8 +30,8 @@ static void testCreateRequestInternal() {
     string request = "";
     if(debug) { cout  << "request " << request <<endl;}
     PVStructurePtr pvRequest = createRequest->createRequest(request);
-    if(pvRequest.get()==NULL) { cout<< createRequest->getMessage() << endl;}
-    if(debug) { cout << *pvRequest << endl;}
+    if(!pvRequest) { cout<< createRequest->getMessage() << endl;}
+    if(debug) { cout << pvRequest << endl;}
     testOk1(pvRequest.get()!=NULL);
     testOk1(pvRequest->getStructure()->getNumberFields()==0);
     testPass("request %s",request.c_str());
@@ -39,8 +39,8 @@ static void testCreateRequestInternal() {
     request = "record[]field()getField()putField()";
     if(debug) { cout  << "request " << request <<endl;}
     pvRequest = createRequest->createRequest(request);
-    if(pvRequest.get()==NULL) { cout<< createRequest->getMessage() << endl;}
-    if(debug) { cout << *pvRequest << endl;}
+    if(!pvRequest) { cout<< createRequest->getMessage() << endl;}
+    if(debug) { cout << pvRequest << endl;}
     testOk1(pvRequest.get()!=NULL);
     testOk1(pvRequest->getSubField("field").get()!=NULL);
     testOk1(pvRequest->getSubField("putField").get()!=NULL);
@@ -50,8 +50,8 @@ static void testCreateRequestInternal() {
     request = "record[a=b,x=y]field(a) putField(a),getField(a)";
     if(debug) { cout  << "request " << request <<endl;}
     pvRequest = createRequest->createRequest(request);
-    if(pvRequest.get()==NULL) { cout<< createRequest->getMessage() << endl;}
-    if(debug) { cout << *pvRequest << endl;}
+    if(!pvRequest) { cout<< createRequest->getMessage() << endl;}
+    if(debug) { cout << pvRequest << endl;}
     testOk1(pvRequest.get()!=NULL);
     pvString = pvRequest->getSubField<PVString>("record._options.a");
     sval = pvString->get();
@@ -67,8 +67,8 @@ static void testCreateRequestInternal() {
     request = "field(a.b[x=y])";
     if(debug) { cout  << "request " << request <<endl;}
     pvRequest = createRequest->createRequest(request);
-    if(pvRequest.get()==NULL) { cout<< createRequest->getMessage() << endl;}
-    if(debug) { cout << *pvRequest << endl;}
+    if(!pvRequest) { cout<< createRequest->getMessage() << endl;}
+    if(debug) { cout << pvRequest << endl;}
     testOk1(pvRequest.get()!=NULL);
     pvString = pvRequest->getSubField<PVString>("field.a.b._options.x");
     sval = pvString->get();
@@ -78,8 +78,8 @@ static void testCreateRequestInternal() {
     request = "field(a.b{c.d})";
     if(debug) { cout  << "request " << request <<endl;}
     pvRequest = createRequest->createRequest(request);
-    if(pvRequest.get()==NULL) { cout<< createRequest->getMessage() << endl;}
-    if(debug) { cout << *pvRequest << endl;}
+    if(!pvRequest) { cout<< createRequest->getMessage() << endl;}
+    if(debug) { cout << pvRequest << endl;}
     testOk1(pvRequest.get()!=NULL);
     testOk1(pvRequest->getSubField("field.a.b.c.d").get()!=NULL);
     testPass("request %s",request.c_str());
@@ -87,8 +87,8 @@ static void testCreateRequestInternal() {
     request = "field(a.b[x=y]{c.d})";
     if(debug) { cout  << "request " << request <<endl;}
     pvRequest = createRequest->createRequest(request);
-    if(pvRequest.get()==NULL) { cout<< createRequest->getMessage() << endl;}
-    if(debug) { cout << *pvRequest << endl;}
+    if(!pvRequest) { cout<< createRequest->getMessage() << endl;}
+    if(debug) { cout << pvRequest << endl;}
     testOk1(pvRequest.get()!=NULL);
     pvString = pvRequest->getSubField<PVString>("field.a.b._options.x");
     sval = pvString->get();
@@ -99,8 +99,8 @@ static void testCreateRequestInternal() {
     request = "field(a.b[x=y]{c.d[x=y]})";
     if(debug) { cout  << "request " << request <<endl;}
     pvRequest = createRequest->createRequest(request);
-    if(pvRequest.get()==NULL) { cout<< createRequest->getMessage() << endl;}
-    if(debug) { cout << *pvRequest << endl;}
+    if(!pvRequest) { cout<< createRequest->getMessage() << endl;}
+    if(debug) { cout << pvRequest << endl;}
     testOk1(pvRequest.get()!=NULL);
     pvString = pvRequest->getSubField<PVString>("field.a.b._options.x");
     sval = pvString->get();
@@ -113,8 +113,8 @@ static void testCreateRequestInternal() {
     request = "record[a=b,c=d] field(a.a[a=b]{a.a[a=b]},b.a[a=b]{a,b})";
     if(debug) { cout  << "request " << request <<endl;}
     pvRequest = createRequest->createRequest(request);
-    if(pvRequest.get()==NULL) { cout<< createRequest->getMessage() << endl;}
-    if(debug) { cout << *pvRequest << endl;}
+    if(!pvRequest) { cout<< createRequest->getMessage() << endl;}
+    if(debug) { cout << pvRequest << endl;}
     testOk1(pvRequest.get()!=NULL);
     pvString = pvRequest->getSubField<PVString>("field.a.a._options.a");
     sval = pvString->get();
@@ -133,8 +133,8 @@ static void testCreateRequestInternal() {
     request = "alarm,timeStamp,power.value";
     if(debug) { cout  << "request " << request <<endl;}
     pvRequest = createRequest->createRequest(request);
-    if(pvRequest.get()==NULL) { cout<< createRequest->getMessage() << endl;}
-    if(debug) { cout << *pvRequest << endl;}
+    if(!pvRequest) { cout<< createRequest->getMessage() << endl;}
+    if(debug) { cout << pvRequest << endl;}
     testOk1(pvRequest.get()!=NULL);
     testOk1(pvRequest->getSubField("field.alarm").get()!=NULL);
     testOk1(pvRequest->getSubField("field.timeStamp").get()!=NULL);
@@ -144,8 +144,8 @@ static void testCreateRequestInternal() {
     request = "record[process=true]field(alarm,timeStamp,power.value)";
     if(debug) { cout  << "request " << request <<endl;}
     pvRequest = createRequest->createRequest(request);
-    if(pvRequest.get()==NULL) { cout<< createRequest->getMessage() << endl;}
-    if(debug) { cout << *pvRequest << endl;}
+    if(!pvRequest) { cout<< createRequest->getMessage() << endl;}
+    if(debug) { cout << pvRequest << endl;}
     testOk1(pvRequest.get()!=NULL);
     pvString = pvRequest->getSubField<PVString>("record._options.process");
     sval = pvString->get();
@@ -158,8 +158,8 @@ static void testCreateRequestInternal() {
     request = "record[process=true]field(alarm,timeStamp[algorithm=onChange,causeMonitor=false],power{value,alarm})";
     if(debug) { cout  << "request " << request <<endl;}
     pvRequest = createRequest->createRequest(request);
-    if(pvRequest.get()==NULL) { cout<< createRequest->getMessage() << endl;}
-    if(debug) { cout << *pvRequest << endl;}
+    if(!pvRequest) { cout<< createRequest->getMessage() << endl;}
+    if(debug) { cout << pvRequest << endl;}
     testOk1(pvRequest.get()!=NULL);
     pvString = pvRequest->getSubField<PVString>("record._options.process");
     sval = pvString->get();
@@ -179,8 +179,8 @@ static void testCreateRequestInternal() {
     request = "record[int=2,float=3.14159]field(alarm,timeStamp[shareData=true],power.value)";
     if(debug) { cout  << "request " << request <<endl;}
     pvRequest = createRequest->createRequest(request);
-    if(pvRequest.get()==NULL) { cout<< createRequest->getMessage() << endl;}
-    if(debug) { cout << *pvRequest << endl;}
+    if(!pvRequest) { cout<< createRequest->getMessage() << endl;}
+    if(debug) { cout << pvRequest << endl;}
     testOk1(pvRequest.get()!=NULL);
     pvString = pvRequest->getSubField<PVString>("record._options.int");
     sval = pvString->get();
@@ -201,8 +201,8 @@ static void testCreateRequestInternal() {
     	+ "current{value,alarm},voltage{value,alarm})";
     if(debug) { cout  << "request " << request <<endl;}
     pvRequest = createRequest->createRequest(request);
-    if(pvRequest.get()==NULL) { cout<< createRequest->getMessage() << endl;}
-    if(debug) { cout << *pvRequest << endl;}
+    if(!pvRequest) { cout<< createRequest->getMessage() << endl;}
+    if(debug) { cout << pvRequest << endl;}
     testOk1(pvRequest.get()!=NULL);
     testOk1(pvRequest->getSubField("putField.power.value").get()!=NULL);
     testOk1(pvRequest->getSubField("getField.alarm").get()!=NULL);
@@ -221,8 +221,8 @@ static void testCreateRequestInternal() {
         + "})";
     if(debug) { cout  << "request " << request <<endl;}
     pvRequest = createRequest->createRequest(request);
-    if(pvRequest.get()==NULL) { cout<< createRequest->getMessage() << endl;}
-    if(debug) { cout << *pvRequest << endl;}
+    if(!pvRequest) { cout<< createRequest->getMessage() << endl;}
+    if(debug) { cout << pvRequest << endl;}
     testOk1(pvRequest.get()!=NULL);
     testOk1(pvRequest->getSubField("field.alarm").get()!=NULL);
     testOk1(pvRequest->getSubField("field.timeStamp").get()!=NULL);
@@ -243,8 +243,8 @@ static void testCreateRequestInternal() {
         + ")";
     if(debug) { cout  << "request " << request <<endl;}
     pvRequest = createRequest->createRequest(request);
-    if(pvRequest.get()==NULL) { cout<< createRequest->getMessage() << endl;}
-    if(debug) { cout << *pvRequest << endl;}
+    if(!pvRequest) { cout<< createRequest->getMessage() << endl;}
+    if(debug) { cout << pvRequest << endl;}
     testOk1(pvRequest.get()!=NULL);
     testOk1(pvRequest->getSubField("putField.power.value").get()!=NULL);
     testOk1(pvRequest->getSubField("getField.alarm").get()!=NULL);
@@ -276,8 +276,8 @@ static void testCreateRequestInternal() {
     request = "a{b{c{d}}}";
     if(debug) { cout  << "request " << request <<endl;}
     pvRequest = createRequest->createRequest(request);
-    if(pvRequest.get()==NULL) { cout<< createRequest->getMessage() << endl;}
-    if(debug) { cout << *pvRequest << endl;}
+    if(!pvRequest) { cout<< createRequest->getMessage() << endl;}
+    if(debug) { cout << pvRequest << endl;}
     testOk1(pvRequest.get()!=NULL);
     testOk1(pvRequest->getSubField("field.a.b.c.d").get()!=NULL);
     testPass("request %s",request.c_str());
@@ -302,11 +302,27 @@ static void testCreateRequestInternal() {
     cout << "reason " << createRequest->getMessage() << endl;
     testOk1(pvRequest.get()==NULL);
     testPass("request %s",request.c_str());
+
+    request = "field(alarm.status,alarm.severity)";
+    if(debug) { cout  << "request " << request <<endl;}
+    cout << endl << "Error Expected for next call!!" << endl;
+    pvRequest = createRequest->createRequest(request);
+    cout << "reason " << createRequest->getMessage() << endl;
+    testOk1(pvRequest.get()==NULL);
+    testPass("request %s",request.c_str());
+
+    request = ":field(record[process=false]power.value)";
+    if(debug) { cout  << "request " << request <<endl;}
+    cout << endl << "Error Expected for next call!!" << endl;
+    pvRequest = createRequest->createRequest(request);
+    cout << "reason " << createRequest->getMessage() << endl;
+    testOk1(pvRequest.get()==NULL);
+    testPass("request %s",request.c_str());
 }
 
 MAIN(testCreateRequest)
 {
-    testPlan(117);
+    testPlan(121);
     testCreateRequestInternal();
     return testDone();
 }

testApp/copy/testPVCopy.cpp

@@ -108,7 +108,6 @@ static void testPVScalar(
 }
 
 static void testPVScalarArray(
-    ScalarType scalarType,
     string const & valueNameMaster,
     string const & valueNameCopy,
     PVStructurePtr const & pvMaster,
@@ -123,14 +122,14 @@ static void testPVScalarArray(
     shared_vector<double> values(n);
     shared_vector<const double> cvalues;
 
-    pvValueMaster = pvMaster->getScalarArrayField(valueNameMaster,scalarType);
+    pvValueMaster = pvMaster->getSubField<PVScalarArray>(valueNameMaster);
     for(size_t i=0; i<n; i++) values[i] = i;
     const shared_vector<const double> xxx(freeze(values));
     pvValueMaster->putFrom(xxx);
     StructureConstPtr structure = pvCopy->getStructure();
     if(debug) { cout << "structure from copy" << endl << *structure << endl;}
     pvStructureCopy = pvCopy->createPVStructure();
-    pvValueCopy = pvStructureCopy->getScalarArrayField(valueNameCopy,scalarType);
+    pvValueCopy = pvStructureCopy->getSubField<PVScalarArray>(valueNameCopy);
     bitSet = BitSetPtr(new BitSet(pvStructureCopy->getNumberFields()));
     pvCopy->initCopy(pvStructureCopy, bitSet);
     if(debug) { cout << "after initCopy pvValueCopy " << *pvValueCopy << endl; }
@@ -256,7 +255,7 @@ static void arrayTest()
     if(debug) { cout << "pvRequest\n" << *pvRequest << endl; }
     pvCopy = PVCopy::create(pvMaster,pvRequest,"");
     valueNameCopy = "value";
-    testPVScalarArray(pvDouble,valueNameMaster,valueNameCopy,pvMaster,pvCopy);
+    testPVScalarArray(valueNameMaster,valueNameCopy,pvMaster,pvCopy);
     request = "";
     valueNameMaster = "value";
     pvRequest = createRequest->createRequest(request);
@@ -264,7 +263,7 @@ static void arrayTest()
     if(debug) { cout << "pvRequest\n" << *pvRequest << endl; }
     pvCopy = PVCopy::create(pvMaster,pvRequest,"");
     valueNameCopy = "value";
-    testPVScalarArray(pvDouble,valueNameMaster,valueNameCopy,pvMaster,pvCopy);
+    testPVScalarArray(valueNameMaster,valueNameCopy,pvMaster,pvCopy);
     request = "alarm,timeStamp,value";
     valueNameMaster = "value";
     pvRequest = createRequest->createRequest(request);
@@ -272,7 +271,7 @@ static void arrayTest()
     if(debug) { cout << "pvRequest\n" << *pvRequest << endl; }
     pvCopy = PVCopy::create(pvMaster,pvRequest,"");
     valueNameCopy = "value";
-    testPVScalarArray(pvDouble,valueNameMaster,valueNameCopy,pvMaster,pvCopy);
+    testPVScalarArray(valueNameMaster,valueNameCopy,pvMaster,pvCopy);
 }
 
 static PVStructurePtr createPowerSupply()

testApp/misc/Makefile

@@ -7,6 +7,11 @@ testThread_SRCS += testThread.cpp
 testHarness_SRCS += testThread.cpp
 TESTS += testThread
 
+TESTPROD_HOST += testEvent
+testEvent_SRCS += testEvent.cpp
+testHarness_SRCS += testEvent.cpp
+TESTS += testEvent
+
 TESTPROD_HOST += testTimer
 testTimer_SRCS += testTimer.cpp
 testHarness_SRCS += testTimer.cpp

testApp/misc/testBitSet.cpp

@@ -146,12 +146,19 @@ static void testOperators()
     b1.or_and(b2, b3);
     str = toString(b1);
     testOk1(str == "{2, 128}");
+
+    b1.clear(); b1.set(1);
+    b2.clear();
+    b3.clear(); b3.set(1);
+    std::cout<<"# "<<toString(b3)<<" |= "<<toString(b1)<<" & "<<toString(b2)<<"\n";
+    b3.or_and(b1, b2);
+    testOk(toString(b3) == "{1}", "%s == {1}", toString(b3).c_str());
 }
 
 
 MAIN(testBitSet)
 {
-    testPlan(29);
+    testPlan(30);
     testGetSetClearFlip();
     testOperators();
     return testDone();

testApp/misc/testEvent.cpp

@@ -0,0 +1,51 @@
+/**
+ * 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 <epicsUnitTest.h>
+#include <testMain.h>
+
+#include <pv/event.h>
+
+using namespace epics::pvData;
+
+static void testBasicEvent()
+{
+    testDiag("testBasicEvent");
+
+    Event e;
+
+    // 0 signals, 2 waits
+    testOk1(!e.tryWait());
+    testOk1(!e.tryWait());
+
+    // signal, wait, signal, wait
+    e.signal();
+    testOk1(e.tryWait());
+    e.signal();
+    testOk1(e.tryWait());
+
+    // 1 signal, 2 waits
+    e.signal();
+    testOk1(e.tryWait());
+    testOk1(!e.tryWait());
+
+    // 2 signals, 2 waits
+    e.signal();
+    e.signal();
+    testOk1(e.tryWait());
+    testOk1(!e.tryWait());
+
+    // 0 signals, 1 wait
+    testOk1(!e.tryWait());
+}
+
+MAIN(testEvent)
+{
+    testPlan(9);
+    testBasicEvent();
+    return testDone();
+}
+ 

testApp/misc/testOverrunBitSet.cpp

@@ -32,17 +32,17 @@ void test()
      string buffer;
      string properties("alarm,timeStamp,display");
      PVStructurePtr pvStructure = standardPVField->scalar(pvDouble,properties);
-     PVDoublePtr pvValue = pvStructure->getDoubleField("value");
+     PVDoublePtr pvValue = pvStructure->getSubField<PVDouble>("value");
      uint32 valueOffset = (uint32) pvValue->getFieldOffset();
-     PVStructurePtr pvAlarm = pvStructure->getStructureField("alarm");
-     PVIntPtr pvSeverity = pvAlarm->getIntField("severity");
-     PVStringPtr pvMessage = pvAlarm->getStringField("message");
+     PVStructurePtr pvAlarm = pvStructure->getSubField<PVStructure>("alarm");
+     PVIntPtr pvSeverity = pvAlarm->getSubField<PVInt>("severity");
+     PVStringPtr pvMessage = pvAlarm->getSubField<PVString>("message");
      uint32 severityOffset = (uint32) pvSeverity->getFieldOffset();
      uint32 messageOffset = (uint32) pvMessage->getFieldOffset();
-     PVStructurePtr pvTimeStamp = pvStructure->getStructureField("timeStamp");
-     PVLongPtr pvSeconds = pvTimeStamp->getLongField("secondsPastEpoch");
-     PVIntPtr pvNanoseconds = pvTimeStamp->getIntField("nanoseconds");
-     PVIntPtr pvUserTag = pvTimeStamp->getIntField("userTag");
+     PVStructurePtr pvTimeStamp = pvStructure->getSubField<PVStructure>("timeStamp");
+     PVLongPtr pvSeconds = pvTimeStamp->getSubField<PVLong>("secondsPastEpoch");
+     PVIntPtr pvNanoseconds = pvTimeStamp->getSubField<PVInt>("nanoseconds");
+     PVIntPtr pvUserTag = pvTimeStamp->getSubField<PVInt>("userTag");
      uint32 timeStampOffset = (uint32) pvTimeStamp->getFieldOffset();
      uint32 secondsOffset = (uint32) pvSeconds->getFieldOffset();
      uint32 nanosecondsOffset = (uint32) pvNanoseconds->getFieldOffset();

testApp/misc/testSerialization.cpp

@@ -385,9 +385,9 @@ void testStructure() {
 
     testDiag("\tSimple structure serialization");
 	PVStructurePtr pvStructure = factory->createPVStructure(getStandardField()->timeStamp());
-    pvStructure->getLongField("secondsPastEpoch")->put(123);
-    pvStructure->getIntField("nanoseconds")->put(456);
-    pvStructure->getIntField("userTag")->put(789);
+    pvStructure->getSubField<PVLong>("secondsPastEpoch")->put(123);
+    pvStructure->getSubField<PVInt>("nanoseconds")->put(456);
+    pvStructure->getSubField<PVInt>("userTag")->put(789);
 
     serializationTest(pvStructure);
 

testApp/misc/testSharedVector.cpp

@@ -356,7 +356,7 @@ static void testPush()
 
 static void testVoid()
 {
-    testDiag("Test vecter cast to/from void");
+    testDiag("Test vector cast to/from void");
 
     epics::pvData::shared_vector<int32> typed(4);
 
@@ -497,8 +497,8 @@ static void testICE()
     
     D = B; // create second const reference
 
-    // clears D, but reference to B refrence
-    // to B remains, so a copy is made
+    // clears D, but reference to B
+    // remains, so a copy is made
     C = epics::pvData::thaw(D);
 
     testOk1(B.unique());

testApp/misc/testTimeStamp.cpp

@@ -35,7 +35,7 @@ void testTimeStampInternal()
     current.getCurrent();
     printf("current %lli %i milliSec %lli\n",
         (long long)current.getSecondsPastEpoch(),
-        current.getNanoseconds(),
+        (int)current.getNanoseconds(),
         (long long)current.getMilliseconds());
     time_t tt;
     current.toTime_t(tt);
@@ -45,13 +45,13 @@ void testTimeStampInternal()
         "%4.4d.%2.2d.%2.2d %2.2d:%2.2d:%2.2d %d isDst %s\n",
         ctm.tm_year+1900,ctm.tm_mon + 1,ctm.tm_mday,
         ctm.tm_hour,ctm.tm_min,ctm.tm_sec,
-        current.getNanoseconds(),
+        (int)current.getNanoseconds(),
         (ctm.tm_isdst==0) ? "false" : "true");
     tt = time(&tt);
     current.fromTime_t(tt);
     printf("fromTime_t\ncurrent %lli %i milliSec %lli\n",
         (long long)current.getSecondsPastEpoch(),
-        current.getNanoseconds(),
+        (int)current.getNanoseconds(),
         (long long)current.getMilliseconds());
     current.toTime_t(tt);
     memcpy(&ctm,localtime(&tt),sizeof(struct tm));
@@ -59,7 +59,7 @@ void testTimeStampInternal()
         "%4.4d.%2.2d.%2.2d %2.2d:%2.2d:%2.2d %d isDst %s\n",
         ctm.tm_year+1900,ctm.tm_mon + 1,ctm.tm_mday,
         ctm.tm_hour,ctm.tm_min,ctm.tm_sec,
-        current.getNanoseconds(),
+        (int)current.getNanoseconds(),
         (ctm.tm_isdst==0) ? "false" : "true");
     TimeStamp right;
     TimeStamp left;

testApp/property/testProperty.cpp

@@ -19,7 +19,6 @@
 #include <pv/requester.h>
 #include <pv/pvIntrospect.h>
 #include <pv/pvData.h>
-#include <pv/convert.h>
 #include <pv/standardField.h>
 #include <pv/standardPVField.h>
 #include <pv/alarm.h>
@@ -41,7 +40,6 @@ static FieldCreatePtr fieldCreate;
 static PVDataCreatePtr pvDataCreate;
 static StandardFieldPtr standardField;
 static StandardPVFieldPtr standardPVField;
-static ConvertPtr convert;
 static string alarmTimeStamp("alarm,timeStamp");
 static string allProperties("alarm,timeStamp,display,control");
 
@@ -131,9 +129,9 @@ static void testTimeStamp()
             "%4.4d.%2.2d.%2.2d %2.2d:%2.2d:%2.2d %d nanoseconds isDst %s userTag %d\n",
             ctm.tm_year+1900,ctm.tm_mon + 1,ctm.tm_mday,
             ctm.tm_hour,ctm.tm_min,ctm.tm_sec,
-            timeStamp.getNanoseconds(),
+            (int)timeStamp.getNanoseconds(),
             (ctm.tm_isdst==0) ? "false" : "true",
-            timeStamp.getUserTag());
+            (int)timeStamp.getUserTag());
     }
     timeStamp.put(0,0);
     pvTimeStamp.set(timeStamp);
@@ -217,14 +215,14 @@ static void testEnumerated()
     PVStringArray::const_svector choices = pvEnumerated.getChoices();
     int32 numChoices = pvEnumerated.getNumberChoices();
     if(debug) {
-        printf("index %d choice %s choices",index,choice.c_str());
+        printf("index %d choice %s choices",(int)index,choice.c_str());
         for(int i=0; i<numChoices; i++ ) printf(" %s",choices[i].c_str());
         printf("\n");
     }
     pvEnumerated.setIndex(2);
     index = pvEnumerated.getIndex();
     choice = pvEnumerated.getChoice();
-    if(debug) printf("index %d choice %s\n",index,choice.c_str());
+    if(debug) printf("index %d choice %s\n",(int)index,choice.c_str());
     printf("testEnumerated PASSED\n");
 }
 
@@ -236,7 +234,6 @@ MAIN(testProperty)
     pvDataCreate = getPVDataCreate();
     standardField = getStandardField();
     standardPVField = getStandardPVField();
-    convert = getConvert();
     createRecords();
     testAlarm();
     testTimeStamp();

testApp/pv/testBitSetUtil.cpp

@@ -18,7 +18,6 @@
 
 #include <pv/requester.h>
 #include <pv/bitSetUtil.h>
-#include <pv/convert.h>
 #include <pv/standardField.h>
 #include <pv/standardPVField.h>
 
@@ -32,7 +31,6 @@ static FieldCreatePtr fieldCreate;
 static PVDataCreatePtr pvDataCreate;
 static StandardFieldPtr standardField;
 static StandardPVFieldPtr standardPVField;
-static ConvertPtr convert;
 
 static void test()
 {
@@ -175,7 +173,6 @@ MAIN(testBitSetUtil)
     pvDataCreate = getPVDataCreate();
     standardField = getStandardField();
     standardPVField = getStandardPVField();
-    convert = getConvert();
     test();
     return testDone();
 }