7.1.3

Erroneous mixing of byte and element indexing
introduced by a51b308cc8

.ci/travis-build.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+set -e -x
+
+make -j2
+
+if [ "$TEST" != "NO" ]
+then
+  make -j2 tapfiles
+  make -j2 -s test-results
+fi

.ci/travis-prepare.sh

@@ -0,0 +1,83 @@
+#!/bin/sh
+set -e -x
+
+cat << EOF > configure/RELEASE.local
+EPICS_BASE=$HOME/.source/epics-base
+EOF
+
+install -d "$HOME/.source"
+cd "$HOME/.source"
+
+git clone --quiet --depth 5 --branch "$BRBASE" https://github.com/${REPOBASE:-epics-base}/epics-base.git epics-base
+(cd epics-base && git log -n1 )
+
+EPICS_HOST_ARCH=`sh epics-base/startup/EpicsHostArch`
+
+# requires wine and g++-mingw-w64-i686
+if [ "$WINE" = "32" ]
+then
+  echo "Cross mingw32"
+  sed -i -e '/CMPLR_PREFIX/d' epics-base/configure/os/CONFIG_SITE.linux-x86.win32-x86-mingw
+  cat << EOF >> epics-base/configure/os/CONFIG_SITE.linux-x86.win32-x86-mingw
+CMPLR_PREFIX=i686-w64-mingw32-
+EOF
+  cat << EOF >> epics-base/configure/CONFIG_SITE
+CROSS_COMPILER_TARGET_ARCHS+=win32-x86-mingw
+EOF
+fi
+
+if [ "$STATIC" = "YES" ]
+then
+  echo "Build static libraries/executables"
+  cat << EOF >> epics-base/configure/CONFIG_SITE
+SHARED_LIBRARIES=NO
+STATIC_BUILD=YES
+EOF
+fi
+
+case "$CMPLR" in
+clang)
+  echo "Host compiler is clang"
+  cat << EOF >> epics-base/configure/os/CONFIG_SITE.Common.$EPICS_HOST_ARCH
+GNU         = NO
+CMPLR_CLASS = clang
+CC          = clang
+CCC         = clang++
+EOF
+
+  # hack
+  sed -i -e 's/CMPLR_CLASS = gcc/CMPLR_CLASS = clang/' epics-base/configure/CONFIG.gnuCommon
+
+  clang --version
+  ;;
+*)
+  echo "Host compiler is default"
+  gcc --version
+  ;;
+esac
+
+cat <<EOF >> epics-base/configure/CONFIG_SITE
+USR_CPPFLAGS += $USR_CPPFLAGS
+USR_CFLAGS += $USR_CFLAGS
+USR_CXXFLAGS += $USR_CXXFLAGS
+EOF
+
+# set RTEMS to eg. "4.9" or "4.10"
+# requires qemu, bison, flex, texinfo, install-info
+if [ -n "$RTEMS" ]
+then
+  echo "Cross RTEMS${RTEMS} for pc386"
+  curl -L "https://github.com/mdavidsaver/rsb/releases/download/20171203-${RTEMS}/i386-rtems${RTEMS}-trusty-20171203-${RTEMS}.tar.bz2" \
+  | tar -C / -xmj
+
+  sed -i -e '/^RTEMS_VERSION/d' -e '/^RTEMS_BASE/d' epics-base/configure/os/CONFIG_SITE.Common.RTEMS
+  cat << EOF >> epics-base/configure/os/CONFIG_SITE.Common.RTEMS
+RTEMS_VERSION=$RTEMS
+RTEMS_BASE=$HOME/.rtems
+EOF
+  cat << EOF >> epics-base/configure/CONFIG_SITE
+CROSS_COMPILER_TARGET_ARCHS += RTEMS-pc386-qemu
+EOF
+fi
+
+make -j2 -C epics-base $EXTRA

.gitignore

@@ -0,0 +1,17 @@
+/cfg/
+/bin/
+/lib/
+/db/
+/dbd/
+/html/
+/include/
+/templates/
+/configure/*.local
+/configure/RELEASE.*
+/configure/CONFIG_SITE.*
+O.*/
+/QtC-*
+envPaths
+*.orig
+*.log
+.*.swp

.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

@@ -1,19 +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
-b0d39d12d743b82038066955db6bb957b1f2f767 4.0.1

.travis.yml

@@ -0,0 +1,30 @@
+sudo: false
+dist: trusty
+language: c++
+compiler:
+  - gcc
+addons:
+  apt:
+    packages:
+    - libreadline6-dev
+    - libncurses5-dev
+    - perl
+    - clang
+    - g++-mingw-w64-i686
+    - qemu-system-x86
+install:
+ - ./.ci/travis-prepare.sh
+script:
+ - ./.ci/travis-build.sh
+env:
+ - BRBASE=7.0 CMPLR=gcc
+ - BRBASE=7.0 CMPLR=clang
+ - BRBASE=7.0 USR_CXXFLAGS=-std=c++11
+ - BRBASE=7.0 CMPLR=clang USR_CXXFLAGS=-std=c++11
+ - BRBASE=7.0 WINE=32 TEST=NO STATIC=YES
+ - BRBASE=7.0 WINE=32 TEST=NO STATIC=NO
+ - BRBASE=7.0 RTEMS=4.10 TEST=NO
+ - BRBASE=7.0 RTEMS=4.9 TEST=NO
+ - BRBASE=3.16
+ - BRBASE=3.15
+ - BRBASE=3.14

COPYRIGHT

@@ -1,12 +0,0 @@
-/****************************************************
-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.
-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
-*************************************************** */

LICENSE

@@ -1,12 +1,17 @@
+Copyright and License Terms
+---------------------------
 
-Copyright (c) 2008 Martin R. Kraimer
-Copyright (c) 2006 The University of Chicago, as Operator of Argonne
+Copyright (c) 2006-2016 Martin R. Kraimer
+Copyright (c) 2006-2016 UChicago Argonne LLC, 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) 2007-2016 Control System Laboratory,
     (COSYLAB) Ljubljana Slovenia
-
+Copyright (c) 2010-2016 Brookhaven Science Associates, as Operator
+    of Brookhaven National Laboratory
+Copyright (c) 2011-2016 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
@@ -31,48 +36,30 @@ OTHER DEALINGS IN THE SOFTWARE.
 
 ________________________________________________________________________
 
-This software is in part copyrighted by the University of Chicago (UofC)
+Additional Disclaimers
+----------------------
 
-In no event shall UofC 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
-UofC has been advised of the possibility of such damage.
+This software is copyright in part by these institutions:
 
-UofC 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 UofC has no obligation to provide maintenance, support,
-updates, enhancements, or modifications.
+  * Brookhaven Science Associates, as Operator of Brookhaven
+    National Laboratory, New York, USA
+  * Control System Laboratory, Ljubljana, Slovenia
+  * Deutsches Elektronen-Synchroton, Member of the Helmholtz
+    Association, Hamburg, Germany
+  * Diamond Light Source Limited, Didcot, United Kingdom
+  * Helmholtz-Zentrum Berlin fuer Materialien und Energie m.b.H.,
+    Berlin, Germany.
+  * UChicage Argonne LLC, as Operator of Argonne National Laboratory,
+    Illinois, USA
 
-________________________________________________________________________
+In no event shall these institutions 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 advised of the possibility of such damage.
 
-This software is in part copyrighted by the BERLINER SPEICHERRING
-GESELLSCHAFT FUER SYNCHROTRONSTRAHLUNG M.B.H. (BESSY), BERLIN, GERMANY.
+These institutions 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 these institutions have no obligation to provide
+maintenance, support, updates, enhancements, or modifications.
 
-In no event shall BESSY 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
-BESSY has been advised of the possibility of such damage.
-
-BESSY 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 BESSY has no obligation to provide maintenance, support,
-updates, enhancements, or modifications.
-
-________________________________________________________________________
-
-This software is in part copyrighted by the Deutsches Elektronen-Synchroton,
-    Member of the Helmholtz Association, (DESY), HAMBURG, GERMANY.
-
-In no event shall DESY 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
-DESY has been advised of the possibility of such damage.
-
-DESY 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 DESY has no obligation to provide maintenance, support,
-updates, enhancements, or modifications.
-________________________________________________________________________

Makefile

@@ -11,4 +11,7 @@ src_DEPEND_DIRS = configure
 DIRS += testApp
 testApp_DEPEND_DIRS = src
 
+DIRS += examples
+examples_DEPEND_DIRS = src
+
 include $(TOP)/configure/RULES_TOP

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 +1,16 @@
+# pvaDataCPP
+
+The EPICS **pvData** API provides a set of classes and utilities that form the core of the EPICS PVA implementation.
+
+The pvDataCPP module is a part of the EPICS software toolkit that implements pvData structures as C++ class objects.
+
+## Links
+
+- General information about EPICS can be found at the
+  [EPICS Controls website](https://epics-controls.org).
+- API documentation for this module can be found on its
+  [Github Pages website](https://epics-base.github.io/pvDataCPP/).
+
+## Building
+
+This module is included as a submodule of a full EPICS 7 release and will be compiled during builds of that software.

configure/CONFIG_PVDATA_VERSION

@@ -0,0 +1,4 @@
+EPICS_PVD_MAJOR_VERSION = 7
+EPICS_PVD_MINOR_VERSION = 1
+EPICS_PVD_MAINTENANCE_VERSION = 3
+EPICS_PVD_DEVELOPMENT_FLAG = 0

configure/CONFIG_SITE

@@ -20,8 +20,13 @@ CHECK_RELEASE = YES
 #   INSTALL_LOCATION here.
 #INSTALL_LOCATION=</path/name/to/install/top>
 
+USR_CPPFLAGS += -DPVD_INTERNAL
+
+-include $(TOP)/../CONFIG_SITE.local
 -include $(TOP)/configure/CONFIG_SITE.local
--include $(TOP)/../CONFIG.local
+
+# MSVC - skip defining min()/max() macros
+USR_CPPFLAGS_WIN32 += -DNOMINMAX
 
 ifdef WITH_COVERAGE
 USR_CPPFLAGS += --coverage

configure/Makefile

@@ -2,6 +2,8 @@ TOP=..
 
 include $(TOP)/configure/CONFIG
 
+CFG += CONFIG_PVDATA_VERSION
+
 TARGETS = $(CONFIG_TARGETS)
 CONFIGS += $(subst ../,,$(wildcard $(CONFIG_INSTALLS)))
 

configure/RELEASE

@@ -1,25 +1,38 @@
-# pvDataCPP RELEASE - Location of external support modules
+# RELEASE - Location of external support modules
 #
-# IF YOU CHANGE this file or any file it includes you must
-# subsequently do a "gnumake rebuild" in the application's
-# top level directory.
+# IF YOU CHANGE ANY PATHS in this file or make API changes to
+# any modules it refers to, you should do a "make rebuild" in
+# this application's top level directory.
 #
-# The build process does not check dependencies against files
-# that are outside this application, thus you should also do a
-# "gnumake rebuild" in the top level directory after EPICS_BASE
-# or any other external module pointed to below is rebuilt.
+# The EPICS build process does not check dependencies against
+# any files from outside the application, so it is safest to
+# rebuild it completely if any modules it depends on change.
 #
 # Host- or target-specific settings can be given in files named
 #  RELEASE.$(EPICS_HOST_ARCH).Common
 #  RELEASE.Common.$(T_A)
 #  RELEASE.$(EPICS_HOST_ARCH).$(T_A)
-
-# EPICS V4 Developers: Do not edit the locations in this file!
 #
-# Create a file RELEASE.local pointing to your PVCOMMON
-# and EPICS_BASE build directories, e.g.
-#   PVCOMMON = /home/install/epicsV4/pvCommonCPP
-#   EPICS_BASE = /home/install/epics/base
+# This file is parsed by both GNUmake and an EPICS Perl script,
+# so it may ONLY contain definititions of paths to other support
+# modules, variable definitions that are used in module paths,
+# and include statements that pull in other RELEASE files.
+# Variables may be used before their values have been set.
+# Build variables that are NOT used in paths should be set in
+# the CONFIG_SITE file.
 
--include $(TOP)/configure/RELEASE.local
+# Variables and paths to dependent modules:
+#MODULES = /path/to/modules
+#MYMODULE = $(MODULES)/my-module
+
+# If building the EPICS modules individually, set these:
+#EPICS_BASE = /path/to/base
+
+# Set RULES here if you want to use build rules from elsewhere:
+#RULES = $(MODULES)/build-rules
+
+# These allow developers to override the RELEASE variable settings
+# without having to modify the configure/RELEASE file itself.
 -include $(TOP)/../RELEASE.local
+-include $(TOP)/../RELEASE.$(EPICS_HOST_ARCH).local
+-include $(TOP)/configure/RELEASE.local

documentation/.gitignore

@@ -0,0 +1,3 @@
+*.tag
+*.db
+html/

documentation/Makefile

@@ -0,0 +1,16 @@
+all: gen
+
+clean:
+	rm -rf doxygen_sqlite3.db html
+
+gen: libstdc++.tag
+	doxygen
+
+commit: gen
+	touch html/.nojekyll
+	./commit-gh.sh documentation/html/ html/.nojekyll html/*.* html/search/*.*
+
+libstdc++.tag:
+	wget -O $@ https://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/libstdc++.tag
+
+.PHONY: all clean gen commit

documentation/RELEASE_NOTES.html

@@ -1,58 +0,0 @@
-<h1>Release 4.0 IN DEVELOPMENT</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>
-<li>timeStamp and valueAlarm name changes</li>
-<li>toString replaced by stream I/O </li>
-<li>union is new type.</li>
-<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.
-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>
-<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>
-<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);
-  cout &lt;&lt; buffer &lt;&lt; endl;
-  buffer.clear();
-  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>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>
-<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>
-<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

@@ -1,89 +0,0 @@
-Release 4.0 IN DEVELOPMENT
-===========
-
-The main changes since release 3.0.2 are:
-
-* array semantics now enforce Copy On Write.
-* String no longer defined.
-* timeStamp and valueAlarm name changes
-* toString replaced by stream I/O 
-* union is new type.
-* copy is new.
-* monitorPlugin is new.
-
-New Semantics for Arrays
---------
-
-PVScalarArray, PVStructureArray, and PVUnionArray all enforce COW (Copy On Write) Semantics.
-In order to limit memory usage the storage for raw data is managed via a new shared_vector facility.
-This allows multiple instances of array data to use the shared raw data.
-COW is implemented via shared_vectors of const data, i. e. data that can not be modified.
-
-
-String no longer defined
----------
-
-This is replaced by std::string.
-
-
-timeStamp and valueAlarm name changes
---------------
-
-In timeStamp nanoSeconds is changed to nanoseconds.
-
-In valueAlarm hystersis is changed to hysteresis
-
-
-toString replaced by stream I/O
----------
-
-pvData.h and pvIntrospect no longer defines toString
-Instead they have stream support.
-pvIntrospect uses method dump and pvData uses dumpValue.
-For example:
-
-      PVDoublePtr pvValue;
-      String buffer;
-      pvValue->toString(&buffer);
-      cout << buffer << endl;
-      buffer.clear();
-      pvValue->getField()->toString(&buffer);
-      cout << buffer << evdl;
-
-is replaced by
-
-      PVDoublePtr pvValue;
-      cout << *pvValue << endl
-      cout << *pvValue->getField() << endl;
-
-
-union is a new basic type.
-------------
-
-There are two new basic types: union_t and unionArray.
-
-A union is like a structure that has a single subfield.
-There are two flavors:
-
-* <b>varient union</b> The field can have any type.
-* <b>union</b> The field can any of specified set of types.
-
-The field type can be dynamically changed.
-
-copy 
-----
-
-This consists of createRequest and pvCopy.
-createRequest was moved from pvAccess to here.
-pvCopy is moved from pvDatabaseCPP and now depends
-only on pvData, i. e. it no longer has any knowledge of PVRecord.
-
-monitorPlugin
--------------
-
-This is for is for use by code that implements pvAccess monitors.
-This is prototype and is subject to debate.
-
-Release 3.0.2
-==========
-This was the starting point for RELEASE_NOTES

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

@@ -1,38 +1,14 @@
 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
 ---------
 
 normativeTypes.html describes valueAlarm only for a value field that has type
 double.
 The implementation also supports all the numeric scalar types.
-
-monitorPlugin
--------------
-
-A debate is on-going about what semantics should be.
-

documentation/commit-gh.sh

@@ -0,0 +1,45 @@
+#!/bin/sh
+set -e -x
+# Usage: commit-gh <sub-directory-prefix> <files...>
+#
+# Creates a commit containing only the files in the sub-directory provided as an argument
+#
+# Does not disturb the working copy or index
+
+prefix="$1"
+shift
+
+# Commit to this branch
+BRANCH=refs/heads/gh-pages
+
+# Use the main branch description as the gh-pages commit message
+MSG=`git describe --tags --always`
+
+# Scratch space
+TDIR=`mktemp -d -p $PWD`
+
+# Automatic cleanup of scratch space
+trap 'rm -rf $TDIR' INT TERM QUIT EXIT
+
+export GIT_INDEX_FILE="$TDIR/index"
+
+# Add listed files to a new (empty) index
+git update-index --add "$@"
+
+# Write the index into the repo, get tree hash
+TREE=`git write-tree --prefix="$prefix"`
+
+echo "TREE $TREE"
+git cat-file -p $TREE
+
+# Create a commit with our new tree
+# Reference current branch head as parent (if any)
+CMT=`git commit-tree -m "$MSG" $TREE`
+
+echo "COMMIT $CMT"
+git cat-file -p $CMT
+
+# Update the branch with the new commit tree hash
+git update-ref $BRANCH $CMT
+
+echo "Done"

documentation/copyandmonitor.html

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

documentation/mainpage.dox

@@ -0,0 +1,58 @@
+#ifndef MAINPAGE_H
+#define MAINPAGE_H
+/**
+@mainpage pvDataCPP documentation
+
+- This module is included in [EPICS Base releases](https://epics-controls.org/resources-and-support/base/) beginning with 7.0.1
+- It may also be [Downloaded](https://github.com/epics-base/pvDataCPP/releases) and built separately.
+- @htmlonly <a href="modules.html">API components</a> @endhtmlonly
+- @ref release_notes
+
+The epics::pvData namespace.
+See pv/pvData.h header.
+
+@code
+#include <pv/pvData.h>
+#include <pv/createRequest.h>
+@endcode
+
+- Type description epics::pvData::Field and sub-classes
+- Value container epics::pvData::PVField and sub-classes
+- POD array handling epics::pvData::shared_vector
+- pvRequest parsing epics::pvData::createRequest()
+
+Define a structure type and create a container with default values.
+
+@code
+namespace pvd = epics::pvData;
+pvd::StructureConstPtr stype(pvd::FieldBuilder::begin()
+                        ->add("fld1", pvd::pvInt)
+                        ->addNestedStructure("sub")
+                            ->add("fld2", pvd::pvString)
+                        ->endNested()
+                        ->createStructure());
+
+pvd::PVStructuretPtr value(stype->build());
+
+value->getSubFieldT<pvd::PVInt>("fld1")->put(4); // store integer 4.  would throw if not pvInt
+value->getSubFieldT<pvd::PVScalar>("sub.fld2")->putFrom(4.2); // convert and store string "4.2"
+@endcode
+
+is equivalent to the following pseudo-code.
+
+@code
+struct stype {
+    pvd::int32 fld1;
+    struct {
+        std::string fld2;
+    } sub;
+};
+stype value;
+value.fld1 = 4;
+value.fld2 = pvd::castUnsafe<std::string>(4.2);
+@endcode
+
+*/
+
+#endif /* MAINPAGE_H */
+

documentation/pvDataCPPCookbook.txt

@@ -1,179 +0,0 @@
-pvDataCPP cookbook
-------------------
-
-
-Creating introspection data interfaces
-
-// create a scalar
-getFieldCreate()->createScalar(pvDouble);
-
-// create a scalar array
-getFieldCreate()->createScalarArray(pvDouble);
-
-// create a structure
-getFieldCreate()->createFieldBuilder()->
-    setId("enum_t")->
-    add("index", pvDouble)->
-    addArray("choices", pvString)->
-    createStructure();
-
-// create a structure (cntd.)
-StructureConstPtr enum_t = 
-    getFieldCreate()->createFieldBuilder()->
-        setId("enum_t")->
-        add("index", pvInt)->
-        addArray("choices", pvString)->
-        createStructure();
-
-// create a structure (cntd.)
-StructureConstPtr ntEnum = 
-    getFieldCreate()->createFieldBuilder()->
-        setId("epics:nt/NTEnum:1.0")->
-        add("value", enum_t)->
-        addNestedStructure("timeStamp")->
-            setId("time_t")->
-            add("secondsPastEpoch", pvLong)->
-            add("nanoseconds", pvInt)->
-            add("userTag", pvInt)->
-            endNested()->
-        createStructure();
-
-// create an union == same as structure
-
----
-
-Creating data containers
-
-// create a scalar
-PVDouble::shared_pointer doubleValue = getPVDataCreate()->createPVScalar<PVDouble>();
-
-// create a scalar array
-PVDoubleArray::shared_pointer doubleArrayValue = getPVDataCreate()->createPVScalarArray<PVDouble>();
-
-// create a structure 
-PVStructure::shared_pointer struct = getPVDataCreate()->createPVStructure(ntEnum);
-
-// create an union
-PVUnion::shared_pointer pvUnion = getPVDataCreate()->createPVUnion(unionIF);
-
-// create a structure array
-PVStructureArray::shared_pointer structArray = getPVDataCreate()->createPVStructureArray(ntEnum);
-
-
-// scalar usage
-PVInt::shared_pointer index = struct->getSubField<PVInt>("value.index");
-int32 ix = index->get();
-index->put(3);
-std::cout << *index << std::endl;
-
-
-// using <<=, >>= operators to get/set
-*doubleValue <<= 12.3;
-
-double val;
-*doubleValue >>= val;
-
-
-
-// array usage
-PVStringArray::shared_pointer choices = struct->getSubField<PVStringArray>("value.choices");
-
-// use view() to access read-only data
-PVStringArray::const_svector data(choices->view());
-for (std::size_t i = 0; i < data.size(); i++)
-    std::cout << data[i] << std::endl;
-    
-// use replace() to put new data
-PVStringArray::svector newdata;
-newdata.push_back("zero");
-newdata.push_back("one");
-newdata.push_back("two");
-choices->replace(freeze(newdata));
-
-// (add more use-cases) here
-
-// print entire array
-std::cout << *choices << std::endl;
-
-// print elmenet at index == 1
-std::cout << format::array_at(1) << *choices << std::endl;
-
-----
-
-Union handling
-
-
-Union::const_shared_pointer punion =
-    getFieldCreate()->createFieldBuilder()->
-        add("doubleValue", pvDouble)->
-        add("intValue", pvInt)->
-        createUnion();
-                            
-PVUnion::shared_pointer u = getPVDataCreate()->createPVUnion(punion);
-
-// select and put
-// this create a new instance of PVDouble (everytime select() is called)
-PVDouble::shared_pointer doubleValue = u->select<PVDouble>("doubleValue");
-doubeValue->put(12);
-// select using index (and direct put)
-u->select<PVDouble>(0)->put(12);
-// select using existing PVField (PVUnion stores by-reference)
-u->set("doubleValue", doubleValue);
-
-// get selected field name or index
-std::string selectedFN = u->getSelectedFieldName();
-int32 selectedIndex = u->getSelectedIndex();
-
-// get currently selected (knowing it's PVDouble)
-PVDouble value = u->get<PVDouble>();
-
-
-
-Variant Union handling
-
-
-PVUnion::shared_pointer any = getPVDataCreate()->createPVVariantUnion();
-
-PVDouble::shared_pointer doubleValue = getPVDataCreate()->createPVScalar<PVDouble>();
-doubleValue->put(12.8);
-any->set(doubleValue);
-
-PVDouble::shared_pointer doubleValue2 = any->get<PVDouble>();
-
-// variant union work by-reference (pointers match also)
-// doubleValue.get() == doubleValue2.get()
-
-
-
-------
-
-Convert
-
-
-// convert to int
-int32 i = doubleValue->getAs<int32>();
-
-// from int
-doubleValue->putFrom<int32>(i);
-
-// from string
-doubleValue->putFrom<std::string>("12.3");
-
-// from scalar field
-doubleValue->assign(pvScalar);
-
-
-
-// convert to int array
-PVIntArray::const_svector intData;
-doubleArrayValue->getAs<int32>(intData);
-
-// from string array
-PVStringArray::svector labels;
-labels.push_back("zero");
-labels.push_back("one");
-labels.push_back("two");
-doubleArrayValue->putFrom<std::string>(labels);
-
-// from scalar array 
-doubleArrayValue->assign(pvScalarArray);

documentation/release_notes.dox

@@ -0,0 +1,428 @@
+/**
+
+@page release_notes Release Notes
+
+Release 7.1.3 (Apr 2019)
+========================
+
+- Fix for array serialization error to/from big endian.
+  https://github.com/epics-base/pvDataCPP/issues/65
+
+Release 7.1.2 (Mar 2019)
+========================
+
+- 7.1.1 tag pushed prematurely.
+
+Release 7.1.1 (Mar 2019)
+========================
+
+- Fixes
+ - Init order issue with StandardField::getStandardField()
+ - Build fix for Visual Studio 2013+
+
+Release 7.1.0 (Nov 2018)
+========================
+
+- Deprecations
+ - BoundedString, BoundedScalarArray, and FixedScalarArray will be removed unless they are fixed.
+   See https://github.com/epics-base/pvDataCPP/issues/52 for discussion.
+ - pv/localStaticLock.h
+ - pv/pvCopy.h (see epics::pvData::PVRequestMapper)
+- Removals
+ - Remove previously deprecated executor.h, queue.h and timerFunction.h
+ - Remove *HashFunction functors to "hash" Field sub-classes which were never fully implemented.
+- Fixes
+ - Make thread safe getFieldCreate() and getPVDataCreate()
+ - Workaround for MSVC pickyness that iterators be non-NULL, even when not de-referenced.
+ - Fix alignment fault during (de)serialization on RTEMS/vxWorks.
+ - Fix epics::pvData::shared_vector::swap() for void specialization.
+ - Changes in several epics::pvData::Field sub-classes to return const ref. instead of a copy.
+- Additions
+ - epics::pvData::shared_vector add c++11 move and construct for initializer list.
+ - Add epics::pvData::AnyScalar::clear()
+ - Add ctor epics::pvData::AnyScalar(ScalarType, const void*) to allow construction from an untyped buffer.
+ - Add epics::pvData::Timer::close()
+ - Allow epics::pvData::castUnsafe() from const char* without first allocating a std::string.
+ - De-duplication of epics::pvData::Field instances is performed using a global hash table.
+   Identical definitions will share a single instance.  Allows O(0) comparision.
+ - Add epics::pvData::PVRequestMapper to facilitate (partial) copying between PVStructure instances
+   modified by a pvRequest.
+ - Add shorthand notations epics::pvData::FieldBuilder::begin() and epics::pvData::Field::build()
+
+Release 7.0.0 (Dec 2017)
+========================
+
+- Removals
+ - Remove requester.h, monitor.h, and destroyable.h..  Migrated to the pvAccessCPP module.
+ - Previously deprecated monitorPlugin.h is removed.
+ - Remove pv/messageQueue.h and epics::pvData::MessageQueue
+- Deprecate the following utility classes, to be removed in 8.0.
+ - epics::pvData::Queue
+ - epics::pvData::Executor
+ - epics::pvData::TimeFunction
+- Additions
+ - Add pv/pvdVersion.h which is included by pv/pvIntrospect.h
+ - Add epics::pvData::createRequest() function.  Alternative to epics::pvData::CreateRequest class which throws on error.
+ - epics::pvData::FieldBuilder allow Structure defintion to be changed/appended
+ - Add epics::pvData::ValueBuilder like FieldBuilder also sets initial values.
+  - Can also be constructed using an existing PVStructure to allow "editing".
+ - Add debugPtr.h wrapper with reference tracking to assist in troubleshooting shared_ptr related ref. loops.
+ - Add @ref pvjson utilities
+ - Add reftrack @ref pvd_reftrack
+ - Add header typemap.h to facilitate boilerplate switch() over ScalarType
+ - Add epics::auto_ptr typedef in help writing code supporting both c++98 and c++11 w/o copious deprecation warnings.
+
+
+Release 6.0.1
+=============
+
+The changes since release 6.0.0 are:
+
+* Fix "Problem building pvDataCPP for win32-x86-mingw" (issue #42)
+* In src/misc/bitSet.cpp #include "algorithm" required for MSVS 2015
+* In testApp/misc/testTypeCast.cpp print (u)int8 values as integers
+* Minor documentation updates
+
+
+Release 6.0.0 (Aug. 2016)
+=======================
+
+The main changes since release 5.0.4 are:
+
+* Linux shared library version added
+* Headers have been moved into pv directories
+* Bitset functions declared const where possible
+* Bitset::swap added
+* Requester::message has default implementation
+* Serialization/deserialization helpers added
+* Non-template getSubField char* overload added
+* MonitorPlugin deprecated
+* Field name validation performed
+* Now builds for Cygwin and MinGW targets
+* Fix for debug build issue.
+* New license file replaces LICENSE and COPYRIGHT
+
+Shared library version added
+----------------------------
+
+Linux shared library version numbers have been added by setting SHRLIB_VERSION
+(to 6.0 in this case). So shared object will be libpvData.so.6.0 instead of
+libpvData.so.
+
+Headers have been moved into pv directories
+-------------------------------------------
+
+E.g. src/property/alarm.h -> src/property/pv/alarm.h
+
+This facilitates using some IDEs such as Qt Creator.
+
+Requester::message has default implementation
+---------------------------------------------
+
+Requester::message is no longer pure virtual. Default implementation sends
+string to std::cerr.
+
+Serialization/deserialization helpers added
+-------------------------------------------
+
+A helper function, serializeToVector, has been added which serializes a
+Serializable object into a standard vector of UInt8s.
+
+Similarly a function deserializeFromVector deserializes a standard vector into
+a Deserializable object.
+
+A function deserializeFromBuffer deserializes a ByteBuffer into a
+Deserializable object.
+
+Field name validation performed
+-------------------------------
+
+On creating a Structure or Union the field names are now validated.
+
+Valid characters for a field name are upper or lowercase letters, numbers and
+underscores and intial numbers are invalid, i.e. names must be of the form
+[A-Za-z_][A-Za-z0-9_]*.
+
+Now builds for Cygwin and MinGW targets
+---------------------------------------
+
+Includes cross-compiling MinGW on Linux.
+
+
+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 (Sep. 2015)
+=========================
+
+The main changes since release 4.0 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 `getSubField()` 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:
+
+- array semantics now enforce Copy On Write.
+- String no longer defined.
+- timeStamp and valueAlarm name changes
+- toString replaced by stream I/O 
+- union is new type.
+- copy is new.
+- monitorPlugin is new.
+
+New Semantics for Arrays
+--------
+
+PVScalarArray, PVStructureArray, and PVUnionArray all enforce COW (Copy On Write) Semantics.
+In order to limit memory usage the storage for raw data is managed via a new shared_vector facility.
+This allows multiple instances of array data to use the shared raw data.
+COW is implemented via shared_vectors of const data, i. e. data that can not be modified.
+
+
+String no longer defined
+---------
+
+This is replaced by std::string.
+
+
+timeStamp and valueAlarm name changes
+--------------
+
+In timeStamp nanoSeconds is changed to nanoseconds.
+
+In valueAlarm hysteresis is changed to hysteresis
+
+
+toString replaced by stream I/O
+---------
+
+pvData.h and pvIntrospect no longer defines toString
+Instead they have stream support.
+pvIntrospect uses method dump and pvData uses dumpValue.
+For example:
+
+      PVDoublePtr pvValue;
+      String buffer;
+      pvValue->toString(&buffer);
+      cout << buffer << endl;
+      buffer.clear();
+      pvValue->getField()->toString(&buffer);
+      cout << buffer << evdl;
+
+is replaced by
+
+      PVDoublePtr pvValue;
+      cout << *pvValue << endl
+      cout << *pvValue->getField() << endl;
+
+
+union is a new basic type.
+------------
+
+There are two new basic types: union_t and unionArray.
+
+A union is like a structure that has a single subfield.
+There are two flavors:
+
+- *variant union* The field can have any type.
+- *union* The field can any of specified set of types.
+
+The field type can be dynamically changed.
+
+copy 
+----
+
+This consists of createRequest and pvCopy.
+createRequest was moved from pvAccess to here.
+pvCopy is moved from pvDatabaseCPP and now depends
+only on pvData, i.e. it no longer has any knowledge of PVRecord.
+
+monitorPlugin
+-------------
+
+This is for is for use by code that implements pvAccess monitors.
+This is prototype and is subject to debate.
+
+Release 3.0.2
+==========
+This was the starting point for RELEASE_NOTES
+
+*/

examples/Makefile

@@ -0,0 +1,14 @@
+# Makefile for the examples
+# make sure they compile
+
+TOP = ..
+include $(TOP)/configure/CONFIG
+
+PROD_LIBS += pvData Com
+
+TESTPROD_HOST += unittest
+unittest_SRCS += unittest.cpp
+
+include $(TOP)/configure/RULES
+
+

examples/unittest.cpp

@@ -0,0 +1,30 @@
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
+ */
+/* c++ unittest skeleton */
+
+#include <stdexcept>
+
+#include <testMain.h>
+
+#include <pv/pvUnitTest.h>
+#include <pv/epicsException.h>
+
+namespace {
+void testCase1() {
+    testEqual(1+1, 2);
+}
+} // namespace
+
+MAIN(testUnitTest)
+{
+    testPlan(1);
+    try {
+        testCase1();
+    }catch(std::exception& e){
+        PRINT_EXCEPTION(e); // print stack trace if thrown with THROW_EXCEPTION()
+        testAbort("Unhandled exception: %s", e.what());
+    }
+    return testDone();
+}

jenkins/cloudbees_build

@@ -4,10 +4,33 @@
 # 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) 2014-2016 ITER Organization.
 # All rights reserved. Use is subject to license terms.
 
+installTool () {
+    local module=$1
+    local version=$2
+
+    wget -nv https://openepics.ci.cloudbees.com/job/${module}-${version}_Build/lastSuccessfulBuild/artifact/${module,,}-${version}.CB-dist.tar.gz
+    tar -xzf ${module,,}-${version}.CB-dist.tar.gz
+}
+
+installE4 () {
+    local module=$1
+    local branch=$2
+
+    wget -nv https://openepics.ci.cloudbees.com/job/e4-cpp-${module}-${branch}-build/BASE=${BASE}/lastSuccessfulBuild/artifact/${module}.CB-dist.tar.gz
+    tar -xzf ${module}.CB-dist.tar.gz
+}
+
+###########################################
+# Defaults for EPICS Base
+
+DEFAULT_BASE=3.15.4
+BASE=${BASE:-${DEFAULT_BASE}}
+
 ###########################################
 # Fetch and unpack dependencies
 
@@ -17,10 +40,8 @@ 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
+installTool Boost 1.61.0
+installTool Base ${BASE}
 
 ###########################################
 # Build
@@ -37,20 +58,13 @@ EPICS_BASE=${EPICS_BASE}
 EOF
 
 make distclean all
-doxygen
 
 ###########################################
 # Test
 
-# EPICS Test Harness tests
 make runtests
 
 ###########################################
-# Create distribution
+# Create cache
 
-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
+tar czf pvData.CB-dist.tar.gz lib include cfg LICENSE

jenkins/cloudbees_doc

@@ -0,0 +1,66 @@
+# 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) 2014-2016 ITER Organization.
+# All rights reserved. Use is subject to license terms.
+
+installTool () {
+    local module=$1
+    local version=$2
+
+    wget -nv https://openepics.ci.cloudbees.com/job/${module}-${version}_Build/lastSuccessfulBuild/artifact/${module,,}-${version}.CB-dist.tar.gz
+    tar -xzf ${module,,}-${version}.CB-dist.tar.gz
+}
+
+installE4 () {
+    local module=$1
+    local branch=$2
+
+    wget -nv https://openepics.ci.cloudbees.com/job/e4-cpp-${module}-${branch}-build/BASE=${BASE}/lastSuccessfulBuild/artifact/${module}.CB-dist.tar.gz
+    tar -xzf ${module}.CB-dist.tar.gz
+}
+
+###########################################
+# Defaults for EPICS Base and parameters
+
+BASE=3.15.4
+PUBLISH=${PUBLISH:-NO}
+BRANCH=${BRANCH:-master}
+
+###########################################
+# Fetch and unpack dependencies
+
+export STUFF=/tmp/stuff
+
+rm -fr ${STUFF}
+mkdir -p ${STUFF}
+cd ${STUFF}
+
+installTool Doxygen 1.8.11
+
+###########################################
+# Generate
+
+cd ${WORKSPACE}
+
+installE4 pvData ${BRANCH}
+
+export PATH=${STUFF}/bin:${PATH}
+
+doxygen
+
+###########################################
+# Publish
+
+if [ "${PUBLISH}" != "NO" ]; 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/Makefile

@@ -3,9 +3,6 @@
 TOP = ..
 include $(TOP)/configure/CONFIG
 
-INSTALL_INCLUDE = $(INSTALL_LOCATION)/include/pv
-USR_INCLUDES += -I$(INSTALL_LOCATION)/include
-
 PVDATA_SRC = $(TOP)/src
 
 include $(PVDATA_SRC)/misc/Makefile
@@ -14,11 +11,26 @@ include $(PVDATA_SRC)/factory/Makefile
 include $(PVDATA_SRC)/property/Makefile
 include $(PVDATA_SRC)/copy/Makefile
 include $(PVDATA_SRC)/pvMisc/Makefile
-include $(PVDATA_SRC)/monitor/Makefile
+include $(PVDATA_SRC)/json/Makefile
 
 LIBRARY = pvData
 
 pvData_LIBS += Com
 
+EXPANDVARS += EPICS_PVD_MAJOR_VERSION
+EXPANDVARS += EPICS_PVD_MINOR_VERSION
+EXPANDVARS += EPICS_PVD_MAINTENANCE_VERSION
+EXPANDVARS += EPICS_PVD_DEVELOPMENT_FLAG
+
+EXPANDFLAGS += $(foreach var,$(EXPANDVARS),-D$(var)="$(strip $($(var)))")
+
+# shared library ABI version.
+SHRLIB_VERSION = $(EPICS_PVD_MAJOR_VERSION).$(EPICS_PVD_MINOR_VERSION).$(EPICS_PVD_MAINTENANCE_VERSION)
+
 include $(TOP)/configure/RULES
 
+# Can't use EXPAND as generated headers must appear
+# in O.Common, but EXPAND emits rules for O.$(T_A)
+../O.Common/pv/pvdVersionNum.h: ../pv/pvdVersionNum.h@
+	$(MKDIR) $(COMMON_DIR)/pv
+	$(EXPAND_TOOL) $(EXPANDFLAGS) $($@_EXPANDFLAGS) $< $@

src/copy/Makefile

@@ -2,8 +2,9 @@
 
 SRC_DIRS += $(PVDATA_SRC)/copy
 
-INC += createRequest.h
-INC += pvCopy.h
+INC += pv/createRequest.h
+INC += pv/pvCopy.h
 
 LIBSRCS += createRequest.cpp
+LIBSRCS += requestmapper.cpp
 LIBSRCS += pvCopy.cpp

src/copy/createRequest.cpp

@@ -1,12 +1,13 @@
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * pvAccessCPP is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
  */
 
 #include <string>
 #include <sstream>
 
+#include <epicsMutex.h>
+
 #define epicsExportSharedSymbols
 
 #include <pv/pvData.h>
@@ -21,13 +22,13 @@ using std::endl;
 using std::string;
 using std::vector;
 
-namespace epics { namespace pvData {
+namespace {
+using namespace epics::pvData;
 
 static PVDataCreatePtr pvDataCreate = getPVDataCreate();
 static FieldCreatePtr fieldCreate = getFieldCreate();
 
-class CreateRequestImpl : public CreateRequest {
-private:
+struct CreateRequestImpl {
 
     struct Node 
     {
@@ -53,12 +54,7 @@ private:
     string fullFieldName;
 
 
-public:
-    CreateRequestImpl()
-    {
-        fullFieldName = "";
-    }
-private:
+    CreateRequestImpl() {}
          
 
     void removeBlanks(string& str)
@@ -74,8 +70,7 @@ private:
         size_t openBrace = request.find('{', index+1);
         size_t closeBrace = request.find('}', index+1);
         if(openBrace == string::npos && closeBrace == string::npos){
-             message = request + " mismatched {}";
-             throw std::logic_error("message");
+             throw std::runtime_error(request + " mismatched {}");
         }
         if (openBrace != string::npos && openBrace!=0) {
             if(openBrace<closeBrace) return findMatchingBrace(request,openBrace,numOpen+1);
@@ -90,14 +85,12 @@ private:
         for(size_t i=index+1; i< request.size(); ++i) {
             if(request[i] == ']') {
                 if(i==index+1) {
-                     message = request + " mismatched []";
-                     throw std::logic_error("message");
+                     throw std::runtime_error(request + " mismatched []");
                 }
                 return i;
             }
         }
-        message = request + " missing ]";
-        throw std::logic_error("message");
+        throw std::runtime_error(request + " missing ]");
     }
 
     size_t findEndField(string& request) {
@@ -152,7 +145,7 @@ private:
         string const & request)
     {
         if(request.length()<=1) {
-            throw std::logic_error("logic error empty options");
+            throw std::runtime_error("logic error empty options");
         }
         vector<Node> top;
         vector<string> items = split(request);
@@ -162,8 +155,7 @@ private:
             string item = items[j];
             size_t equals = item.find('=');
             if(equals==string::npos || equals==0) {
-                message = item + " illegal option " + request;
-                throw std::logic_error("message");
+                throw std::runtime_error(item + " illegal option " + request);
             }
             top.push_back(Node(item.substr(0,equals)));
             string name = fullFieldName + "._options." + item.substr(0,equals);
@@ -212,7 +204,7 @@ private:
         if(end==0) end = request.size();
         string name = request.substr(0,end);
         if(name.size()<1) {
-            throw std::logic_error("null field name " + request);
+            throw std::runtime_error("null field name " + request);
         }
         string saveFullName = fullFieldName;
         fullFieldName += "." + name;
@@ -235,7 +227,7 @@ private:
         if(chr=='.') {
             request = request.substr(end+1);
             if(request.size()==string::npos || request.size()<1) {
-                throw std::logic_error("null field name " + request);
+                throw std::runtime_error("null field name " + request);
             }
             Node subNode(name);
             if(optionNode.name.size()>0) subNode.nodes.push_back(optionNode);
@@ -256,11 +248,11 @@ private:
         if(chr=='{') {
             size_t endBrace = findEndField(request);
             if((end+1)>=(endBrace-1)) {
-                throw std::logic_error("illegal syntax " + request);
+                throw std::runtime_error("illegal syntax " + request);
             }
             string subRequest = request.substr(end+1,endBrace-1 -end -1);
             if(subRequest.size()<1) {
-                throw std::logic_error("empty {} " + request);
+                throw std::runtime_error("empty {} " + request);
             }
             Node subNode(name);
             if(optionNode.name.size()>0) subNode.nodes.push_back(optionNode);
@@ -276,7 +268,7 @@ private:
             createSubNode(node,request);
             return;
         }
-        throw std::logic_error("logic error");
+        throw std::runtime_error("logic error");
     }
 
     FieldConstPtr createSubStructure(vector<Node> & nodes)
@@ -317,17 +309,16 @@ private:
         return structure;
     }
 
-public:
 
-    virtual PVStructurePtr createRequest(
+    PVStructurePtr createRequest(
         string const & crequest)
     {
-        try {
+        {
             string request = crequest;
             if (!request.empty()) removeBlanks(request);
             if (request.empty())
             {
-                return pvDataCreate->createPVStructure(fieldCreate->createStructure());
+                return fieldCreate->createStructure()->build();
             }
             size_t offsetRecord = request.find("record[");
             size_t offsetField = request.find("field(");
@@ -356,20 +347,17 @@ public:
             if(numParan!=0) {
                 ostringstream oss;
                 oss << "mismatched () " << numParan;
-                message = oss.str();
-                return PVStructurePtr();
+                throw std::runtime_error(oss.str());
             }
             if(numBrace!=0) {
                 ostringstream oss;
                 oss << "mismatched {} " << numBrace;
-                message = oss.str();
-                return PVStructurePtr();
+                throw std::runtime_error(oss.str());
             }
             if(numBracket!=0) {
                 ostringstream oss;
                 oss << "mismatched [] " << numBracket;
-                message = oss.str();
-                return PVStructurePtr();
+                throw std::runtime_error(oss.str());
             }
             vector<Node> top;
             try {
@@ -378,9 +366,8 @@ public:
                     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();
+                        throw std::runtime_error(request.substr(offsetRecord) +
+                            "record[ does not have matching ]");
                     }
                     if(closeBracket-openBracket > 3) {
                         Node node("record");
@@ -396,9 +383,8 @@ public:
                     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();
+                        throw std::runtime_error(request.substr(offsetField)
+                                + " field( does not have matching )");
                     }
                     if(closeParan>openParan+1) {
                         createSubNode(node,request.substr(openParan+1,closeParan-openParan-1));
@@ -411,9 +397,8 @@ public:
                     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();
+                        throw std::runtime_error(request.substr(offsetField)
+                                + " getField( does not have matching )");
                     }
                     if(closeParan>openParan+1) {
                         createSubNode(node,request.substr(openParan+1,closeParan-openParan-1));
@@ -426,9 +411,8 @@ public:
                     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();
+                        throw std::runtime_error(request.substr(offsetField)
+                                + " putField( does not have matching )");
                     }
                     if(closeParan>openParan+1) {
                         createSubNode(node,request.substr(openParan+1,closeParan-openParan-1));
@@ -436,9 +420,7 @@ public:
                     top.push_back(node);
                 }
             } catch (std::exception &e) {
-                string xxx = e.what();
-                message = "while creating Structure exception " + xxx;
-                return PVStructurePtr();
+                throw std::runtime_error(std::string("while creating Structure exception ")+e.what());
             }
             size_t num = top.size();
             StringArray names(num);
@@ -454,30 +436,51 @@ public:
                 }
             }
             StructureConstPtr structure = fieldCreate->createStructure(names, fields);
-            PVStructurePtr pvStructure = pvDataCreate->createPVStructure(structure);
+            if(!structure) throw std::invalid_argument("bad request " + crequest);
+            PVStructurePtr pvStructure = structure->build();
             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) {
-             message = e.what();
-             return PVStructurePtr();
         }
     }
 
 
 };
 
+} // namespace
+
+namespace epics {namespace pvData {
+
 CreateRequest::shared_pointer CreateRequest::create()
 {
-    CreateRequest::shared_pointer createRequest(new CreateRequestImpl());
+    CreateRequest::shared_pointer createRequest(new CreateRequest());
     return createRequest;
 }
 
-}}
+PVStructure::shared_pointer CreateRequest::createRequest(std::string const & request)
+{
+    message.clear();
+    try {
+        return ::createRequest(request);
+    } catch(std::exception& e) {
+        message = e.what();
+        return PVStructure::shared_pointer();
+    }
+}
+
+PVStructure::shared_pointer createRequest(std::string const & request)
+{
+    CreateRequestImpl I;
+    return I.createRequest(request);
+}
+
+
+}} // namespace
 

src/copy/createRequest.h

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

src/copy/pv/createRequest.h

@@ -0,0 +1,233 @@
+/*createRequest.h*/
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
+ */
+
+#ifndef CREATEREQUEST_H
+#define CREATEREQUEST_H
+#include <string>
+#include <sstream>
+#include <vector>
+
+#include <pv/pvData.h>
+#include <pv/lock.h>
+#include <pv/bitSet.h>
+
+#include <shareLib.h>
+
+namespace epics { namespace pvData {
+
+class BitSet;
+
+/**
+ * @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:
+    POINTER_DEFINITIONS(CreateRequest);
+    /**
+     * Create s new instance of CreateRequest
+     * @returns A shared pointer to the new instance.
+     */
+    static CreateRequest::shared_pointer create();
+    ~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.
+    * @return The request PVStructure if a valid request was given.
+    * If a NULL PVStructure is returned then getMessage will return
+    * the reason.
+    */
+    PVStructure::shared_pointer createRequest(std::string const & request);
+    /**
+     * Get the error message of createRequest returns NULL
+     * return the error message
+     */
+    std::string getMessage() {return message;}
+protected:
+    CreateRequest() {}
+    std::string message;
+};
+
+/** Parse and build pvRequest structure.
+ *
+ @params request the Request string to be parsed.  eg. "field(value)"
+ @returns The resulting strucuture.  Never NULL
+ @throws std::exception for various parsing errors
+ */
+epicsShareExtern
+PVStructure::shared_pointer createRequest(std::string const & request);
+
+/** Helper for implementations of epics::pvAccess::ChannelProvider in interpreting the
+ *  'field' substructure of a pvRequest.
+ *  Copies between an internal (base) Structure, and a client/user visible (requested) Structure.
+ *
+ * @note PVRequestMapper is not re-entrant.  It is copyable and swap()able.
+ */
+class epicsShareClass PVRequestMapper {
+public:
+    enum mode_t {
+        /** Masking mode.
+         *
+         * Requested Structure is identical to Base.
+         * The 'field' substructure of the provided pvRequest is used to construct a BitSet
+         * where the bits corresponding to the "selected" fields are set.  This mask can be
+         * access via. requestedMask().  The copy* and mask* methods operate only
+         * on "selected" fields.
+         */
+        Mask,
+        /** Slice mode
+         *
+         * The Requested Structure is a strict sub-set of the Base Structure containing
+         * those fields "selected" by the 'field' substructure of the provided pvRequest.
+         */
+        Slice,
+    };
+
+    PVRequestMapper();
+    //! @see compute()
+    PVRequestMapper(const PVStructure& base,
+                    const PVStructure& pvRequest,
+                    mode_t mode = Mask);
+
+    //! return to state of default ctor
+    void reset();
+
+    //! @returns the Structure of the PVStructure previously passed to compute().  NULL if never computed()'d
+    inline const StructureConstPtr& base() const { return typeBase; }
+    //! @returns the Structure which is the selected sub-set of the base Structure.  NULL if never computed()'d
+    inline const StructureConstPtr& requested() const { return typeRequested; }
+
+    /** A mask of all fields in the base structure which are also in the requested structure,
+     *  and any parent/structure "compress" bits.  eg. bit 0 is always set.
+     *
+     @code
+     PVRequestMapper mapper(...);
+     ...
+     BitSet changed = ...; // a base changed mask
+     bool wouldcopy = changed.logical_and(mapper.requestedMask());
+     // wouldcopy==false means that copyBaseToRequested(..., changed, ...) would be a no-op
+     @endcode
+     *
+     * eg. allows early detection of empty monitor updates.
+     */
+    inline const BitSet& requestedMask() const { return maskRequested; }
+
+    //! @returns A new instance of the requested() Structure
+    PVStructurePtr buildRequested() const;
+    //! @returns A new instance of the base() Structure
+    PVStructurePtr buildBase() const;
+
+    /** (re)compute the selected subset of provided base structure.
+     * @param base A full base structure.
+     *             Must be "top level" (field offset zero).
+     * @param pvRequest The user/client provided request modifier
+     * @param mode Control how the mapping is constructed.  @see mode_t for a description of mapping modes.
+     *
+     * @post Updates warnings()
+     * @throws std::runtime_error For errors involving invalid pvRequest
+     * @throws std::logic_error if the provided base is not a "top level" PVStructure.
+     */
+    void compute(const PVStructure& base,
+                 const PVStructure& pvRequest,
+                 mode_t mode = Mask);
+
+    //! After compute(), check if !warnings().empty()
+    inline const std::string& warnings() const { return messages; }
+
+    /** Copy field values from Base structure into Requested structure
+     *
+     * @param base An instance of the base Structure.  Field values are copied from it.
+     *                Need not be the same instance passed to compute().
+     * @param baseMask A bit mask selecting those base fields to copy.
+     * @param request An instance of the requested() Structure.  Field values are copied to it.
+     * @param requestMask A bit mask indicating which requested fields were copied.
+     *                    BitSet::clear() is not called.
+     */
+    void copyBaseToRequested(
+            const PVStructure& base,
+            const BitSet& baseMask,
+            PVStructure& request,
+            BitSet& requestMask
+    ) const;
+
+    /** Copy field values into Base structure from Requested structure
+     *
+     * @param base An instance of the base Structure.  Field values are copied into it.
+     *             Need not be the same instance passed to compute().
+     * @param baseMask A bit mask indicating which base fields were copied.
+     *                 BitSet::clear() is not called.
+     * @param request An instance of the requested() Structure.  Field values are copied from it.
+     * @param requestMask A bit mask selecting those requested fields to copy.
+     */
+    void copyBaseFromRequested(
+            PVStructure& base,
+            BitSet& baseMask,
+            const PVStructure& request,
+            const BitSet& requestMask
+    ) const;
+
+    //! Translate Base bit mask into requested bit mask.
+    //! BitSet::clear() is not called.
+    inline void maskBaseToRequested(
+            const BitSet& baseMask,
+            BitSet& requestMask
+            ) const
+    { _mapMask(baseMask, requestMask, false); }
+
+    //! Translate requested bit mask into base bit mask.
+    //! BitSet::clear() is not called.
+    inline void maskBaseFromRequested(
+            BitSet& baseMask,
+            const BitSet& requestMask
+            ) const
+    { _mapMask(requestMask, baseMask, true); }
+
+    //! Exchange contents of two mappers.  O(0) and never throws.
+    void swap(PVRequestMapper& other);
+
+private:
+    bool _compute(const PVStructure& base, const PVStructure& pvReq,
+                  FieldBuilderPtr& builder, bool keepids, unsigned depth);
+
+    void _map(const PVStructure& src,
+              const BitSet& maskSrc,
+              PVStructure& dest,
+              BitSet& maskDest,
+              bool dir_r2b) const;
+    void _mapMask(const BitSet& maskSrc,
+                  BitSet& maskDest,
+                  bool dir_r2b) const;
+
+    StructureConstPtr typeBase, typeRequested;
+    BitSet maskRequested;
+    // Map between field offsets of base and requested Structures.
+    // Include all fields, both leaf and sub-structure.
+    struct Mapping {
+        size_t to; // offset in destination Structure
+        BitSet tomask,   // if !leaf these are the other bits in the destination mask to changed
+               frommask; // if !leaf these are the other bits in the source mask to be copied
+        bool valid; // only true in (sparse) base -> requested mapping
+        bool leaf; // not a (sub)Structure?
+        Mapping() :valid(false) {}
+        Mapping(size_t to, bool leaf) :to(to), valid(true), leaf(leaf) {}
+    };
+    typedef std::vector<Mapping> mapping_t;
+    mapping_t base2req, req2base;
+
+    std::string messages;
+
+    mutable BitSet scratch; // avoid temporary allocs.  (we aren't re-entrant!)
+};
+
+}}
+
+#endif /* CREATEREQUEST_H */
+

src/copy/pv/pvCopy.h

@@ -1,8 +1,7 @@
 /* pvCopy.h */
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
  */
 /**
  * @author Marty Kraimer
@@ -14,6 +13,7 @@
 #include <stdexcept>
 #include <memory>
 
+#include <compilerDependencies.h>
 #include <shareLib.h>
 
 #include <pv/pvData.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
@@ -53,18 +54,20 @@ 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.
  */
-class epicsShareClass PVCopy : 
+class epicsShareClass EPICS_DEPRECATED PVCopy :
     public std::tr1::enable_shared_from_this<PVCopy>
 {
 public:
     POINTER_DEFINITIONS(PVCopy);
     /**
      * Create a new pvCopy
-     * @param pvMaster The top level sructure for which a copy of
-     * an arbritary subset of the fields in master will be created and managed.
+     * @param 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.
      */
@@ -73,10 +76,10 @@ public:
         PVStructurePtr const &pvRequest,
         std::string const & structureName);
     virtual ~PVCopy(){}
-    virtual void destroy();
+    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/copy/pvCopy.cpp

@@ -1,8 +1,7 @@
 /* pvCopy.cpp */
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
  */
 /**
  * @author Marty Kraimer
@@ -13,12 +12,16 @@
 #include <memory>
 #include <sstream>
 
+#include <epicsThread.h>
+#include <compilerDependencies.h>
+#undef EPICS_DEPRECATED
+#define EPICS_DEPRECATED
+
 #define epicsExportSharedSymbols
 
 #include <pv/thread.h>
 
 #include <pv/pvCopy.h>
-#include <pv/convert.h>
 
 using std::tr1::static_pointer_cast;
 using std::tr1::dynamic_pointer_cast;
@@ -29,12 +32,17 @@ using std::endl;
 
 namespace epics { namespace pvData { 
 
-static PVCopyPtr NULLPVCopy;
-static FieldConstPtr NULLField;
-static StructureConstPtr NULLStructure;
-static PVStructurePtr NULLPVStructure;
-static CopyNodePtr NULLCopyNode;
-static CopyMasterNodePtr NULLCopyMasterNode;
+/**
+ * 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, ' ');
+}
 
 struct CopyNode {
     CopyNode()
@@ -67,13 +75,13 @@ PVCopyPtr PVCopy::create(
     PVStructurePtr pvStructure(pvRequest);
     if(structureName.size()>0) {
         if(pvRequest->getStructure()->getNumberFields()>0) {
-            pvStructure = pvRequest->getStructureField(structureName);
-            if(!pvStructure) return NULLPVCopy;
+            pvStructure = pvRequest->getSubField<PVStructure>(structureName);
+            if(!pvStructure) return PVCopyPtr();
         }
-    } else if(pvStructure->getSubField("field")) {
-        pvStructure = pvRequest->getStructureField("field");
+    } else if(pvStructure->getSubField<PVStructure>("field")) {
+        pvStructure = pvRequest->getSubField<PVStructure>("field");
     }
-    PVCopyPtr pvCopy = PVCopyPtr(new PVCopy(pvMaster));
+    PVCopyPtr pvCopy(new PVCopy(pvMaster));
     bool result = pvCopy->init(pvStructure);
     if(!result) pvCopy.reset();
     return pvCopy;
@@ -135,7 +143,7 @@ PVStructurePtr PVCopy::getOptions(std::size_t fieldOffset)
     while(true) {
         if(!node->isStructure) {
             if(node->structureOffset==fieldOffset) return node->options;
-            return NULLPVStructure;
+            return PVStructurePtr();
         }
         CopyStructureNodePtr structNode = static_pointer_cast<CopyStructureNode>(node);
         CopyNodePtrArrayPtr nodes = structNode->nodes;
@@ -146,7 +154,7 @@ PVStructurePtr PVCopy::getOptions(std::size_t fieldOffset)
             if(fieldOffset>=soff && fieldOffset<soff+node->nfields) {
                 if(fieldOffset==soff) return node->options;
                 if(!node->isStructure) {
-                    return NULLPVStructure;
+                    return PVStructurePtr();
                 }
                 okToContinue = true;
                 break;
@@ -243,10 +251,9 @@ 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 +299,7 @@ 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 +307,14 @@ 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 +327,7 @@ 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();
@@ -338,8 +345,8 @@ bool PVCopy::init(epics::pvData::PVStructurePtr const &pvRequest)
     if(len==string::npos) entireMaster = true;
     if(len==0) entireMaster = true;
     PVStructurePtr pvOptions;
-    if(len==1 && pvRequest->getSubField("_options")) {
-        pvOptions = pvRequest->getStructureField("_options");
+    if(len==1) {
+        pvOptions = pvRequest->getSubField<PVStructure>("_options");
     }
     if(entireMaster) {
         structure = pvMasterStructure->getStructure();
@@ -381,7 +388,7 @@ StructureConstPtr PVCopy::createStructure(
     PVFieldPtrArray const &pvFromRequestFields = pvFromRequest->getPVFields();
     StringArray const &fromRequestFieldNames = pvFromRequest->getStructure()->getFieldNames();
     size_t length = pvFromRequestFields.size();
-    if(length==0) return NULLStructure;
+    if(length==0) return StructureConstPtr();
     FieldConstPtrArray fields; fields.reserve(length);
     StringArray fieldNames; fields.reserve(length);
     for(size_t i=0; i<length; ++i) {
@@ -411,7 +418,7 @@ StructureConstPtr PVCopy::createStructure(
         fields.push_back(field);
     }
     size_t numsubfields = fields.size();
-    if(numsubfields==0) return NULLStructure;
+    if(numsubfields==0) return StructureConstPtr();
     return getFieldCreate()->createStructure(fieldNames, fields);
 }
 
@@ -431,11 +438,8 @@ CopyNodePtr PVCopy::createStructureNodes(
         PVFieldPtr copyPVField = copyPVFields[i];
         string fieldName = copyPVField->getFieldName();
         
-        PVStructurePtr requestPVStructure = static_pointer_cast<PVStructure>(
-              pvFromRequest->getSubField(fieldName));
-        PVStructurePtr pvSubFieldOptions;
-        PVFieldPtr pvField = requestPVStructure->getSubField("_options");
-        if(pvField) pvSubFieldOptions = static_pointer_cast<PVStructure>(pvField);
+        PVStructurePtr requestPVStructure = pvFromRequest->getSubField<PVStructure>(fieldName);
+        PVStructurePtr pvSubFieldOptions = requestPVStructure->getSubField<PVStructure>("_options");
         PVFieldPtr pvMasterField;
         PVFieldPtrArray const & pvMasterFields = pvMasterStructure->getPVFields();
         for(size_t j=0; i<pvMasterFields.size(); j++ ) {
@@ -499,17 +503,16 @@ 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;
     }
@@ -542,7 +545,7 @@ void PVCopy::updateStructureNodeFromBitSet(
     CopyNodePtrArrayPtr  nodes = structureNode->nodes;
     for(size_t i=0; i<nodes->size(); i++) {
         CopyNodePtr node = (*nodes)[i];
-        PVFieldPtr pvField = pvCopy->getSubField(node->structureOffset);
+        PVFieldPtr pvField = pvCopy->getSubFieldT(node->structureOffset);
         if(node->isStructure) {
             PVStructurePtr xxx = static_pointer_cast<PVStructure>(pvField);
             CopyStructureNodePtr subStructureNode =
@@ -574,7 +577,6 @@ 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 +597,9 @@ void PVCopy::updateSubFieldFromBitSet(
         }
     } else {
         if(toCopy) {
-            convert->copy(pvMasterField, pvCopy);
+            pvCopy->copyUnchecked(*pvMasterField);
         } else {
-            convert->copy(pvCopy, pvMasterField);
+            pvMasterField->copyUnchecked(*pvCopy);
         }
     }
 }
@@ -624,7 +626,7 @@ CopyMasterNodePtr PVCopy::getCopyOffset(
             if(masterNode) return masterNode;
         }
     }
-    return NULLCopyMasterNode;
+    return CopyMasterNodePtr();
 }
 
 CopyMasterNodePtr PVCopy::getMasterNode(
@@ -644,7 +646,7 @@ CopyMasterNodePtr PVCopy::getMasterNode(
             static_pointer_cast<CopyStructureNode>(node);
         return  getMasterNode(subNode,structureOffset);
     }
-    return NULLCopyMasterNode;
+    return CopyMasterNodePtr();
 }
 
 }}

src/copy/requestmapper.cpp

@@ -0,0 +1,328 @@
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
+ */
+
+#include <sstream>
+
+#include <epicsAssert.h>
+#include <epicsTypes.h>
+#include <epicsVersion.h>
+#include <epicsConvert.h>
+#include <epicsAssert.h>
+#include <epicsMutex.h>
+#include <epicsGuard.h>
+
+#define epicsExportSharedSymbols
+#include <pv/createRequest.h>
+#include <pv/epicsException.h>
+#include <pv/bitSet.h>
+
+// Our arbitrary limit on pvRequest structure depth to bound stack usage during recursion
+static const unsigned maxDepth = 5;
+
+namespace epics{namespace pvData {
+
+PVRequestMapper::PVRequestMapper() {}
+
+PVRequestMapper::PVRequestMapper(const PVStructure &base,
+                                 const PVStructure &pvRequest,
+                                 mode_t mode)
+{
+    compute(base, pvRequest, mode);
+}
+
+PVStructurePtr PVRequestMapper::buildRequested() const
+{
+    if(!typeRequested)
+        THROW_EXCEPTION2(std::logic_error, "No mapping compute()d");
+    return typeRequested->build();
+}
+
+PVStructurePtr PVRequestMapper::buildBase() const
+{
+    if(!typeBase)
+        THROW_EXCEPTION2(std::logic_error, "No mapping compute()d");
+    return typeBase->build();
+}
+
+void PVRequestMapper::compute(const PVStructure &base,
+                              const PVStructure &pvRequest,
+                              mode_t mode)
+{
+    if(base.getFieldOffset()!=0)
+        THROW_EXCEPTION2(std::logic_error, "Mapper must be used with top level PVStructure");
+
+    bool ok = true;
+
+    // we want to be transactional, which requires a second copy of everything.
+    PVRequestMapper temp;
+
+    // whether to preserve IDs of partial structures.
+    bool keepids = false;
+    PVScalar::const_shared_pointer pbp(pvRequest.getSubField<PVScalar>("record._options.keepIDs"));
+    try {
+        if(pbp) keepids = pbp->getAs<boolean>();
+    }catch(std::runtime_error& e){
+        std::ostringstream msg;
+        msg<<"Can't parse keepIDs : '"<<e.what()<<"' ";
+        temp.messages+=msg.str();
+    }
+
+    PVStructure::const_shared_pointer fields(pvRequest.getSubField<PVStructure>("field"));
+    if(!fields || fields->getPVFields().empty()) {
+        // not selection, or empty selection, treated as select all
+        temp.typeBase = temp.typeRequested = base.getStructure();
+
+        for(size_t i=1, N=base.getNextFieldOffset(); i<N; i++)
+            temp.maskRequested.set(i);
+
+    } else {
+        FieldBuilderPtr builder(getFieldCreate()->createFieldBuilder());
+
+        if(keepids)
+            builder = builder->setId(base.getStructure()->getID());
+
+        ok &= temp._compute(base, *fields, builder, keepids, 0); // fills in builder
+
+        temp.typeBase = base.getStructure();
+        temp.typeRequested = builder->createStructure();
+        // possible that typeBase==typeRequested if all fields explicitly selected
+    }
+
+    if(mode==Mask) {
+        // short circuit use of masked Structure, but keep maskRequested
+        temp.typeRequested = temp.typeBase;
+    }
+
+    {
+        PVStructurePtr proto(temp.typeRequested->build());
+
+        // base -> request may be sparce mapping
+        temp.base2req.resize(base.getNextFieldOffset());
+        // request -> base is dense mapping
+        temp.req2base.resize(proto->getNextFieldOffset());
+
+        // special handling for whole structure mapping.  in part because getSubField(0) isn't allowed
+        temp.base2req[0] = Mapping(0, false);
+        temp.req2base[0] = Mapping(0, false);
+
+        // Iterate prototype of requested to map with base field offsets.
+        // which is handled as a special case below.
+        // We also don't try to prevent redundant copies if both leaf and compress bits are set.
+        for(size_t r=1, N=proto->getNextFieldOffset(); r<N; r++) {
+            PVField::const_shared_pointer fld_req(proto->getSubFieldT(r)),
+                    fld_base(base.getSubFieldT(fld_req->getFullName()));
+            const size_t b = fld_base->getFieldOffset();
+
+            if(!temp.requestedMask().get(b))
+                continue;
+
+            bool leaf = fld_base->getField()->getType()!=structure;
+
+            // initialize mapping when our bit is set
+            temp.base2req[b] = Mapping(r, leaf);
+            temp.req2base[r] = Mapping(b, leaf);
+
+            // add ourself to all "compress" bit mappings of enclosing structures
+            for(const PVStructure *parent = fld_req->getParent(); parent; parent = parent->getParent()) {
+                temp.req2base[parent->getFieldOffset()].tomask  .set(b);
+                temp.req2base[parent->getFieldOffset()].frommask.set(r);
+            }
+
+            for(const PVStructure *parent = fld_base->getParent(); parent; parent = parent->getParent()) {
+                temp.base2req[parent->getFieldOffset()].tomask  .set(r);
+                temp.base2req[parent->getFieldOffset()].frommask.set(b);
+            }
+        }
+    }
+
+    temp.maskRequested.set(0);
+
+    if(temp.maskRequested.nextSetBit(1)==-1) {
+        ok = false;
+        temp.messages+="Empty field selection";
+    }
+
+    if(!ok)
+        throw std::runtime_error(temp.messages);
+
+    swap(temp);
+}
+
+bool PVRequestMapper::_compute(const PVStructure& base, const PVStructure& pvReq,
+                               FieldBuilderPtr& builder, bool keepids, unsigned depth)
+{
+    bool ok = true;
+    const StringArray& reqNames = pvReq.getStructure()->getFieldNames();
+
+    for(size_t i=0, N=reqNames.size(); i<N; i++) {
+        // iterate through requested fields
+
+        PVField::const_shared_pointer subtype(base.getSubField(reqNames[i]));
+        const FieldConstPtr& subReq = pvReq.getStructure()->getFields()[i];
+
+        if(subReq->getType()!=structure) {
+            // pvRequest .field was not properly composed
+            std::ostringstream msg;
+            // not a great warning message as it doesn't distinguish 'a.value' from 'b.value',
+            // but getFullName() whould prefix with 'field.', which would probably cause
+            // more frequent confusion...
+            msg<<"request invalid '"<<pvReq.getStructure()->getFieldNames()[i]<<"' ";
+            messages+=msg.str();
+            ok = false;
+
+        } else if(!subtype) {
+            // requested field does not actually exist in base
+            std::ostringstream msg;
+            msg<<"No field '"<<pvReq.getStructure()->getFieldNames()[i]<<"' ";
+            messages+=msg.str();
+
+        } else if(depth>=maxDepth // exceeds max recursion depth
+                  || subtype->getField()->getType()!=structure // requested field is a leaf
+                  || static_cast<const Structure&>(*subReq).getFieldNames().empty() // requests all sub-fields
+                  )
+        {
+            // just add the whole thing
+            builder = builder->add(reqNames[i], subtype->getField());
+            for(size_t j=subtype->getFieldOffset(), N=subtype->getNextFieldOffset(); j<N; j++)
+                maskRequested.set(j);
+
+            if(subtype->getField()->getType()!=structure
+                    && !static_cast<const Structure&>(*subReq).getFieldNames().empty())
+            {
+                // attempt to select below a leaf field
+                std::ostringstream msg;
+                msg<<"Leaf field '"<<pvReq.getFullName()<<"' ";
+                messages+=msg.str();
+            } else if(depth>=maxDepth) {
+                std::ostringstream msg;
+                msg<<"selection truncated at '"<<pvReq.getFullName()<<"' ";
+                messages+=msg.str();
+            }
+
+        } else {
+            // recurse into sub-structure
+            const PVStructure& substruct = static_cast<const PVStructure&>(*subtype);
+
+            builder = builder->addNestedStructure(reqNames[i]);
+            maskRequested.set(substruct.getFieldOffset());
+
+            if(keepids)
+                builder = builder->setId(substruct.getStructure()->getID());
+
+            _compute(substruct,
+                     static_cast<const PVStructure&>(*pvReq.getPVFields()[i]),
+                     builder, keepids, depth+1u);
+
+            builder = builder->endNested();
+        }
+    }
+    return ok;
+}
+
+void PVRequestMapper::copyBaseToRequested(
+        const PVStructure& base,
+        const BitSet& baseMask,
+        PVStructure& request,
+        BitSet& requestMask
+) const {
+    assert(base.getStructure()==typeBase);
+    assert(request.getStructure()==typeRequested);
+    _map(base, baseMask, request, requestMask, false);
+}
+
+void PVRequestMapper::copyBaseFromRequested(
+        PVStructure& base,
+        BitSet& baseMask,
+        const PVStructure& request,
+        const BitSet& requestMask
+) const {
+    assert(base.getStructure()==typeBase);
+    assert(request.getStructure()==typeRequested);
+    _map(request, requestMask, base, baseMask, true);
+}
+
+void PVRequestMapper::_map(const PVStructure& src, const BitSet& maskSrc,
+                           PVStructure& dest, BitSet& maskDest,
+                           bool dir_r2b) const
+{
+    {
+        scratch = maskSrc;
+        const mapping_t& map = dir_r2b ? req2base : base2req;
+
+        assert(map.size()==src.getNumberFields());
+
+        for(int32 i=scratch.nextSetBit(0), N=map.size(); i>=0 && i<N; i=scratch.nextSetBit(i+1)) {
+            const Mapping& M = map[i];
+            if(!M.valid) {
+                assert(!dir_r2b); // only base -> requested mapping can have holes
+
+            } else if(M.leaf) {
+                // just copy
+                dest.getSubFieldT(M.to)->copy(*src.getSubFieldT(i));
+                maskDest.set(M.to);
+
+            } else {
+                // set bits of all sub-fields (in requested structure)
+                // these indicies are always >i
+                scratch |= M.frommask;
+
+                // we will also set the individual bits, but if a compress bit is set in the input,
+                // then set the corresponding bit in the output.
+                maskDest.set(M.to);
+            }
+        }
+    }
+}
+
+void PVRequestMapper::_mapMask(const BitSet& maskSrc,
+                               BitSet& maskDest,
+                               bool dir_r2b) const
+{
+    if(maskSrc.isEmpty()) {
+        // no-op
+
+    } else {
+        const mapping_t& map = dir_r2b ? req2base : base2req;
+
+        for(int32 i=maskSrc.nextSetBit(0), N=map.size(); i>=0 && i<N; i=maskSrc.nextSetBit(i+1)) {
+            const Mapping& M = map[i];
+            if(!M.valid) {
+                assert(!dir_r2b); // only base -> requested mapping can have holes
+
+            } else {
+                maskDest.set(M.to);
+
+                if(!M.leaf) {
+                    maskDest |= M.tomask;
+                }
+            }
+        }
+    }
+
+}
+
+void PVRequestMapper::swap(PVRequestMapper& other)
+{
+    typeBase.swap(other.typeBase);
+    typeRequested.swap(other.typeRequested);
+    maskRequested.swap(other.maskRequested);
+    base2req.swap(other.base2req);
+    req2base.swap(other.req2base);
+    messages.swap(other.messages);
+    scratch.swap(other.scratch); // paranoia
+}
+
+void PVRequestMapper::reset()
+{
+    typeBase.reset();
+    typeRequested.reset();
+    maskRequested.clear();
+    base2req.clear();
+    req2base.clear();
+    messages.clear();
+    scratch.clear(); // paranoia
+}
+
+}} //namespace epics::pvData

src/factory/Compare.cpp

@@ -1,7 +1,6 @@
-/**
- * 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.
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
  */
 /**
  * @author mes
@@ -12,19 +11,19 @@
 #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
  * 2) same type (field and scalar/element), same name, same subfields (if any)
  */
-bool operator==(const Field& a, const Field& b)
+bool compare(const Field& a, const Field& b)
 {
     if(&a==&b)
         return true;
@@ -34,53 +33,53 @@ bool operator==(const Field& a, const Field& b)
     case scalar: {
         const Scalar &A=static_cast<const Scalar&>(a);
         const Scalar &B=static_cast<const Scalar&>(b);
-        return A==B;
+        return compare(A, B);
     }
     case scalarArray: {
             const ScalarArray &A=static_cast<const ScalarArray&>(a);
             const ScalarArray &B=static_cast<const ScalarArray&>(b);
-            return A==B;
+            return compare(A, B);
         }
     case structure: {
             const Structure &A=static_cast<const Structure&>(a);
             const Structure &B=static_cast<const Structure&>(b);
-            return A==B;
+            return compare(A, B);
         }
     case structureArray: {
             const StructureArray &A=static_cast<const StructureArray&>(a);
             const StructureArray &B=static_cast<const StructureArray&>(b);
-            return A==B;
+            return compare(A, B);
         }
     case union_: {
             const Union &A=static_cast<const Union&>(a);
             const Union &B=static_cast<const Union&>(b);
-            return A==B;
+            return compare(A, B);
         }
     case unionArray: {
             const UnionArray &A=static_cast<const UnionArray&>(a);
             const UnionArray &B=static_cast<const UnionArray&>(b);
-            return A==B;
+            return compare(A, B);
         }
     default:
-        throw std::logic_error("Invalid Field type in comparision");
+        throw std::logic_error("Invalid Field type in comparison");
     }
 }
 
-bool operator==(const Scalar& a, const Scalar& b)
+bool compare(const Scalar& a, const Scalar& b)
 {
     if(&a==&b)
         return true;
     return a.getScalarType()==b.getScalarType();
 }
 
-bool operator==(const ScalarArray& a, const ScalarArray& b)
+bool compare(const ScalarArray& a, const ScalarArray& b)
 {
     if(&a==&b)
         return true;
     return a.getElementType()==b.getElementType();
 }
 
-bool operator==(const Structure& a, const Structure& b)
+bool compare(const Structure& a, const Structure& b)
 {
     if(&a==&b)
         return true;
@@ -91,23 +90,23 @@ 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() );
 }
 
-bool operator==(const StructureArray& a, const StructureArray& b)
+bool compare(const StructureArray& a, const StructureArray& b)
 {
     return *(a.getStructure().get())==*(b.getStructure().get());
 }
 
-bool operator==(const Union& a, const Union& b)
+bool compare(const Union& a, const Union& b)
 {
     if(&a==&b)
         return true;
@@ -118,23 +117,23 @@ 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() );
 }
 
-bool operator==(const UnionArray& a, const UnionArray& b)
+bool compare(const UnionArray& a, const UnionArray& b)
 {
     return *(a.getUnion().get())==*(b.getUnion().get());
 }
 
-bool operator==(const BoundedString& a, const BoundedString& b)
+bool compare(const BoundedString& a, const BoundedString& b)
 {
     if(&a==&b)
         return true;
@@ -272,7 +271,7 @@ bool compareField(const PVUnion* left, const PVUnion* right)
         
     if (ls->isVariant())
     {
-        PVFieldPtr lval = left->get();
+        const PVField::const_shared_pointer& lval = left->get();
         if (lval.get() == 0)
             return right->get().get() == 0;
         else

src/factory/Convert.cpp

@@ -1,8 +1,7 @@
 /* Convert.cpp */
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
  */
 /**
  *  @author mrk
@@ -13,6 +12,8 @@
 #include <stdexcept>
 #include <typeinfo>
 
+#include <epicsMutex.h>
+
 #define epicsExportSharedSymbols
 #include <pv/lock.h>
 #include <pv/pvIntrospect.h>
@@ -52,9 +53,6 @@ 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 +150,6 @@ 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/Makefile

@@ -2,7 +2,7 @@
 
 SRC_DIRS += $(PVDATA_SRC)/factory
 
-INC += factory.h
+INC += pv/factory.h
 LIBSRCS += TypeFunc.cpp
 LIBSRCS += FieldCreateFactory.cpp
 LIBSRCS += PVField.cpp

src/factory/PVArray.cpp

@@ -1,8 +1,7 @@
 /*PVArray.cpp*/
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
  */
 /**
  *  @author mrk

src/factory/PVDataCreateFactory.cpp

@@ -1,29 +1,27 @@
 /*PVDataCreateFactory.cpp*/
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
  */
 /**
  *  @author mrk
  */
 
-#ifdef _WIN32
-#define NOMINMAX
-#endif
-
 #include <cstddef>
 #include <cstdlib>
 #include <string>
 #include <cstdio>
 
+#include <epicsMutex.h>
+#include <epicsThread.h>
+
 #define epicsExportSharedSymbols
 #include <pv/lock.h>
 #include <pv/pvIntrospect.h>
 #include <pv/pvData.h>
-#include <pv/convert.h>
 #include <pv/factory.h>
 #include <pv/serializeHelper.h>
+#include <pv/reftrack.h>
 
 using std::tr1::static_pointer_cast;
 using std::size_t;
@@ -59,135 +57,111 @@ template<> const ScalarType PVFloatArray::typeCode = pvFloat;
 template<> const ScalarType PVDoubleArray::typeCode = pvDouble;
 template<> const ScalarType PVStringArray::typeCode = pvString;
 
-/** Default storage for scalar values
- */
-template<typename T>
-class BasePVScalar : public PVScalarValue<T> {
-public:
-    typedef T  value_type;
-    typedef T* pointer;
-    typedef const T* const_pointer;
-
-    BasePVScalar(ScalarConstPtr const & scalar);
-    virtual ~BasePVScalar();
-    virtual T get() const ;
-    virtual void put(T val);
-    virtual void serialize(ByteBuffer *pbuffer,
-        SerializableControl *pflusher) const;
-    virtual void deserialize(ByteBuffer *pbuffer,
-        DeserializableControl *pflusher);
-private:
-    T value;
-};
 
 template<typename T>
-BasePVScalar<T>::BasePVScalar(ScalarConstPtr const & scalar)
-    : PVScalarValue<T>(scalar),value(0)
-{}
-//Note: '0' is a suitable default for all POD types (not string)
+PVScalarValue<T>::~PVScalarValue() {}
 
 template<typename T>
-BasePVScalar<T>::~BasePVScalar() {}
-
-template<typename T>
-T BasePVScalar<T>::get() const  { return value;}
-
-template<typename T>
-void BasePVScalar<T>::put(T val)
+std::ostream& PVScalarValue<T>::dumpValue(std::ostream& o) const
 {
-    value = val;
-    PVField::postPut();
+    return o << get();
 }
 
 template<typename T>
-void BasePVScalar<T>::serialize(ByteBuffer *pbuffer,
+void PVScalarValue<T>::operator>>=(T& value) const
+{
+    value = get();
+}
+
+template<typename T>
+void PVScalarValue<T>::operator<<=(typename storage_t::arg_type value)
+{
+    put(value);
+}
+
+template<typename T>
+void PVScalarValue<T>::assign(const PVScalar& scalar)
+{
+    if(isImmutable())
+        throw std::invalid_argument("destination is immutable");
+    copyUnchecked(scalar);
+}
+
+template<typename T>
+void PVScalarValue<T>::copy(const PVScalar& from)
+{
+    assign(from);
+}
+
+template<typename T>
+void PVScalarValue<T>::copyUnchecked(const PVScalar& from)
+{
+    if(this==&from)
+        return;
+    T result;
+    from.getAs((void*)&result, typeCode);
+    put(result);
+}
+
+template<typename T>
+void PVScalarValue<T>::serialize(ByteBuffer *pbuffer,
     SerializableControl *pflusher) const {
     pflusher->ensureBuffer(sizeof(T));
-    pbuffer->put(value);
+    pbuffer->put(storage.value);
+}
+
+template<>
+void PVScalarValue<std::string>::serialize(ByteBuffer *pbuffer,
+    SerializableControl *pflusher) const {
+    SerializeHelper::serializeString(storage.value, pbuffer, pflusher);
 }
 
 template<typename T>
-void BasePVScalar<T>::deserialize(ByteBuffer *pbuffer,
+void PVScalarValue<T>::deserialize(ByteBuffer *pbuffer,
     DeserializableControl *pflusher)
 {
     pflusher->ensureData(sizeof(T));
-    value = pbuffer->GET(T);
+    storage.value = pbuffer->GET(T);
 }
 
-typedef BasePVScalar<boolean> BasePVBoolean;
-typedef BasePVScalar<int8> BasePVByte;
-typedef BasePVScalar<int16> BasePVShort;
-typedef BasePVScalar<int32> BasePVInt;
-typedef BasePVScalar<int64> BasePVLong;
-typedef BasePVScalar<uint8> BasePVUByte;
-typedef BasePVScalar<uint16> BasePVUShort;
-typedef BasePVScalar<uint32> BasePVUInt;
-typedef BasePVScalar<uint64> BasePVULong;
-typedef BasePVScalar<float> BasePVFloat;
-typedef BasePVScalar<double> BasePVDouble;
+template<>
+void PVScalarValue<std::string>::deserialize(ByteBuffer *pbuffer,
+    DeserializableControl *pflusher)
+{
+    storage.value = SerializeHelper::deserializeString(pbuffer, pflusher);
+    // TODO: check for violations of maxLength?
+}
 
-// BasePVString is special case, since it implements SerializableArray
-class BasePVString : public PVString {
-public:
-    typedef string value_type;
-    typedef string* pointer;
-    typedef const string* const_pointer;
-
-    BasePVString(ScalarConstPtr const & scalar);
-    virtual ~BasePVString();
-    virtual string get() const ;
-    virtual void put(string val);
-    virtual void serialize(ByteBuffer *pbuffer,
-        SerializableControl *pflusher) const;
-    virtual void deserialize(ByteBuffer *pbuffer,
-        DeserializableControl *pflusher);
-    virtual void serialize(ByteBuffer *pbuffer,
-        SerializableControl *pflusher, size_t offset, size_t count) const;
-private:
-    string value;
-    std::size_t maxLength;
-};
-
-BasePVString::BasePVString(ScalarConstPtr const & scalar)
-    : PVString(scalar),value()
+PVString::PVString(ScalarConstPtr const & scalar)
+    : PVScalarValue<std::string>(scalar)
 {
     BoundedStringConstPtr boundedString = std::tr1::dynamic_pointer_cast<const BoundedString>(scalar);
     if (boundedString.get())
-        maxLength = boundedString->getMaximumLength();
+        storage.maxLength = boundedString->getMaximumLength();
     else
-        maxLength = 0;
+        storage.maxLength = 0;
 }
 
-BasePVString::~BasePVString() {}
-
-string BasePVString::get() const  { return value;}
-
-void BasePVString::put(string val)
+std::ostream& PVString::dumpValue(std::ostream& o) const
 {
-    if (maxLength > 0 && val.length() > maxLength)
-        throw std::overflow_error("string too long");
-
-    value = val;
-    postPut();
+    // we escape, but do not quote, for scalar string
+    o<<escape(get());
+    return o;
 }
 
-void BasePVString::serialize(ByteBuffer *pbuffer,
+/* mixing overrides (virtual functions) and overloads (different argument lists) is fun...
+ * we override all overloads to avoid the "hides overloaded virtual function" warning from clang.
+ * In this case we don't need/want to, so just delegate to the base class.
+ */
+void PVString::serialize(ByteBuffer *pbuffer,
     SerializableControl *pflusher) const
-{
-    SerializeHelper::serializeString(value, pbuffer, pflusher);
-}
+{PVScalarValue<std::string>::serialize(pbuffer, pflusher);}
 
-void BasePVString::deserialize(ByteBuffer *pbuffer,
-    DeserializableControl *pflusher)
-{
-    value = SerializeHelper::deserializeString(pbuffer, pflusher);
-}
-
-void BasePVString::serialize(ByteBuffer *pbuffer,
+void PVString::serialize(ByteBuffer *pbuffer,
     SerializableControl *pflusher, size_t offset, size_t count) const
 {
 	// check bounds
-	const size_t length = /*(value == null) ? 0 :*/ value.length();
+    const size_t length = storage.value.length();
 	/*if (offset < 0) offset = 0;
 	else*/ if (offset > length) offset = length;
 	//if (count < 0) count = length;
@@ -197,10 +171,10 @@ void BasePVString::serialize(ByteBuffer *pbuffer,
 		count = maxCount;
 	
 	// write
-	SerializeHelper::serializeSubstring(value, offset, count, pbuffer, pflusher);
+    SerializeHelper::serializeSubstring(storage.value, offset, count, pbuffer, pflusher);
 }
 
-void PVArray::checkLength(size_t len)
+void PVArray::checkLength(size_t len) const
 {
     Array::ArraySizeType type = getArray()->getArraySizeType();
     if (type != Array::variable)
@@ -213,61 +187,79 @@ void PVArray::checkLength(size_t len)
     }
 }
 
-/** Default storage for arrays
- */
 template<typename T>
-class DefaultPVArray : public PVValueArray<T> {
-public:
-    typedef T* pointer;
-    typedef const T* const_pointer;
-    typedef std::vector<T> vector;
-    typedef const std::vector<T> const_vector;
-    typedef std::tr1::shared_ptr<vector> shared_vector;
-
-    typedef ::epics::pvData::shared_vector<T> svector;
-    typedef ::epics::pvData::shared_vector<const T> const_svector;
-
-    DefaultPVArray(ScalarArrayConstPtr const & scalarArray);
-    virtual ~DefaultPVArray();
-
-    virtual size_t getLength() const {return value.size();}
-    virtual size_t getCapacity() const {return value.capacity();}
-
-    virtual void setCapacity(size_t capacity);
-    virtual void setLength(size_t length);
-
-    virtual const_svector view() const {return value;}
-    virtual void swap(const_svector &other);
-    virtual void replace(const const_svector& next);
-
-    // from Serializable
-    virtual void serialize(ByteBuffer *pbuffer,SerializableControl *pflusher) const;
-    virtual void deserialize(ByteBuffer *pbuffer,DeserializableControl *pflusher);
-    virtual void serialize(ByteBuffer *pbuffer,
-         SerializableControl *pflusher, size_t offset, size_t count) const;
-private:
-    const_svector value;
-};
-
-template<typename T>
-DefaultPVArray<T>::DefaultPVArray(ScalarArrayConstPtr const & scalarArray)
-: PVValueArray<T>(scalarArray),
-    value()
+PVValueArray<T>::PVValueArray(ScalarArrayConstPtr const & scalarArray)
+    :base_t(scalarArray)
+    ,value()
   
+{}
+
+PVValueArray<PVStructurePtr>::PVValueArray(StructureArrayConstPtr const & structureArray)
+    :base_t(structureArray)
+    ,structureArray(structureArray)
+
+{}
+
+PVValueArray<PVUnionPtr>::PVValueArray(UnionArrayConstPtr const & unionArray)
+    :base_t(unionArray)
+    ,unionArray(unionArray)
+{}
+
+template<typename T>
+PVValueArray<T>::~PVValueArray() {}
+
+template<typename T>
+ArrayConstPtr PVValueArray<T>::getArray() const
 {
-    ArrayConstPtr array = this->getArray();
-    if (array->getArraySizeType() == Array::fixed)
-    {
-        // this->setLength(array->getMaximumCapacity());
-        this->setCapacityMutable(false);
-    }
+    return std::tr1::static_pointer_cast<const Array>(this->getField());
 }
 
 template<typename T>
-DefaultPVArray<T>::~DefaultPVArray()
-{ }
+std::ostream& PVValueArray<T>::dumpValue(std::ostream& o) const
+{
+    const_svector v(this->view());
+    typename const_svector::const_iterator it(v.begin()),
+                                  end(v.end());
+    o << '[';
+    if(it!=end) {
+        o << print_cast(*it++);
+        for(; it!=end; ++it)
+            o << ',' << print_cast(*it);
+
+    }
+    return o << ']';
+}
+
+template<>
+std::ostream& PVValueArray<std::string>::dumpValue(std::ostream& o, size_t index) const
+{
+    return o << '"' << escape(this->view().at(index)) << '"';
+}
+
+template<>
+std::ostream& PVValueArray<std::string>::dumpValue(std::ostream& o) const
+{
+    const_svector v(this->view());
+    const_svector::const_iterator it(v.begin()),
+                                  end(v.end());
+    o << '[';
+    if(it!=end) {
+        o << '"' << escape(*it++) << '"';
+        for(; it!=end; ++it)
+            o << ", \"" << escape(*it) << '"';
+
+    }
+    return o << ']';
+}
+
 template<typename T>
-void DefaultPVArray<T>::setCapacity(size_t capacity)
+std::ostream& PVValueArray<T>::dumpValue(std::ostream& o, size_t index) const
+{
+    return o << print_cast(this->view().at(index));
+}
+
+template<typename T>
+void PVValueArray<T>::setCapacity(size_t capacity)
 {
     if(this->isCapacityMutable()) {
         this->checkLength(capacity);
@@ -278,7 +270,7 @@ void DefaultPVArray<T>::setCapacity(size_t capacity)
 }
 
 template<typename T>
-void DefaultPVArray<T>::setLength(size_t length)
+void PVValueArray<T>::setLength(size_t length)
 {
     if(this->isImmutable())
         THROW_EXCEPTION2(std::logic_error, "immutable");
@@ -295,7 +287,7 @@ void DefaultPVArray<T>::setLength(size_t length)
 }
 
 template<typename T>
-void DefaultPVArray<T>::replace(const const_svector& next)
+void PVValueArray<T>::replace(const const_svector& next)
 {
     this->checkLength(next.size());
 
@@ -304,7 +296,7 @@ void DefaultPVArray<T>::replace(const const_svector& next)
 }
 
 template<typename T>
-void DefaultPVArray<T>::swap(const_svector &other)
+void PVValueArray<T>::swap(const_svector &other)
 {
     if (this->isImmutable())
         THROW_EXCEPTION2(std::logic_error, "immutable");
@@ -316,13 +308,13 @@ void DefaultPVArray<T>::swap(const_svector &other)
 
 
 template<typename T>
-void DefaultPVArray<T>::serialize(ByteBuffer *pbuffer,
+void PVValueArray<T>::serialize(ByteBuffer *pbuffer,
             SerializableControl *pflusher) const {
     serialize(pbuffer, pflusher, 0, this->getLength());
 }
 
 template<typename T>
-void DefaultPVArray<T>::deserialize(ByteBuffer *pbuffer,
+void PVValueArray<T>::deserialize(ByteBuffer *pbuffer,
         DeserializableControl *pcontrol) {
 
     size_t size = this->getArray()->getArraySizeType() == Array::fixed ?
@@ -371,7 +363,7 @@ void DefaultPVArray<T>::deserialize(ByteBuffer *pbuffer,
 }
 
 template<typename T>
-void DefaultPVArray<T>::serialize(ByteBuffer *pbuffer,
+void PVValueArray<T>::serialize(ByteBuffer *pbuffer,
         SerializableControl *pflusher, size_t offset, size_t count) const
 {
     //TODO: avoid incrementing the ref counter...
@@ -415,7 +407,7 @@ void DefaultPVArray<T>::serialize(ByteBuffer *pbuffer,
 // specializations for string
 
 template<>
-void DefaultPVArray<string>::deserialize(ByteBuffer *pbuffer,
+void PVValueArray<string>::deserialize(ByteBuffer *pbuffer,
         DeserializableControl *pcontrol) {
 
     size_t size = this->getArray()->getArraySizeType() == Array::fixed ?
@@ -442,7 +434,7 @@ void DefaultPVArray<string>::deserialize(ByteBuffer *pbuffer,
 }
 
 template<>
-void DefaultPVArray<string>::serialize(ByteBuffer *pbuffer,
+void PVValueArray<string>::serialize(ByteBuffer *pbuffer,
         SerializableControl *pflusher, size_t offset, size_t count) const {
 
     const_svector temp(value);
@@ -458,18 +450,17 @@ void DefaultPVArray<string>::serialize(ByteBuffer *pbuffer,
     }
 }
 
-typedef DefaultPVArray<boolean> DefaultPVBooleanArray;
-typedef DefaultPVArray<int8> BasePVByteArray;
-typedef DefaultPVArray<int16> BasePVShortArray;
-typedef DefaultPVArray<int32> BasePVIntArray;
-typedef DefaultPVArray<int64> BasePVLongArray;
-typedef DefaultPVArray<uint8> BasePVUByteArray;
-typedef DefaultPVArray<uint16> BasePVUShortArray;
-typedef DefaultPVArray<uint32> BasePVUIntArray;
-typedef DefaultPVArray<uint64> BasePVULongArray;
-typedef DefaultPVArray<float> BasePVFloatArray;
-typedef DefaultPVArray<double> BasePVDoubleArray;
-typedef DefaultPVArray<string> BasePVStringArray;
+template<typename T>
+void PVValueArray<T>::_getAsVoid(epics::pvData::shared_vector<const void>& out) const
+{
+    out = static_shared_vector_cast<const void>(this->view());
+}
+
+template<typename T>
+void PVValueArray<T>::_putFromVoid(const epics::pvData::shared_vector<const void>& in)
+{
+    this->replace(shared_vector_convert<const T>(in));
+}
 
 // Factory
 
@@ -527,7 +518,7 @@ 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 +528,7 @@ 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 +543,7 @@ 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;
          }
      }
@@ -564,29 +555,29 @@ PVScalarPtr PVDataCreate::createPVScalar(ScalarConstPtr const & scalar)
      ScalarType scalarType = scalar->getScalarType();
      switch(scalarType) {
      case pvBoolean:
-         return PVScalarPtr(new BasePVBoolean(scalar));
+         return PVScalarPtr(new PVBoolean(scalar));
      case pvByte:
-         return PVScalarPtr(new BasePVByte(scalar));
+         return PVScalarPtr(new PVByte(scalar));
      case pvShort:
-         return PVScalarPtr(new BasePVShort(scalar));
+         return PVScalarPtr(new PVShort(scalar));
      case pvInt:
-         return PVScalarPtr(new BasePVInt(scalar));
+         return PVScalarPtr(new PVInt(scalar));
      case pvLong:
-         return PVScalarPtr(new BasePVLong(scalar));
+         return PVScalarPtr(new PVLong(scalar));
      case pvUByte:
-         return PVScalarPtr(new BasePVUByte(scalar));
+         return PVScalarPtr(new PVUByte(scalar));
      case pvUShort:
-         return PVScalarPtr(new BasePVUShort(scalar));
+         return PVScalarPtr(new PVUShort(scalar));
      case pvUInt:
-         return PVScalarPtr(new BasePVUInt(scalar));
+         return PVScalarPtr(new PVUInt(scalar));
      case pvULong:
-         return PVScalarPtr(new BasePVULong(scalar));
+         return PVScalarPtr(new PVULong(scalar));
      case pvFloat:
-         return PVScalarPtr(new BasePVFloat(scalar));
+         return PVScalarPtr(new PVFloat(scalar));
      case pvDouble:
-         return PVScalarPtr(new BasePVDouble(scalar));
+         return PVScalarPtr(new PVDouble(scalar));
      case pvString:
-         return PVScalarPtr(new BasePVString(scalar));
+         return PVScalarPtr(new PVString(scalar));
      }
      throw std::logic_error("PVDataCreate::createPVScalar should never get here");
 }
@@ -602,7 +593,7 @@ PVScalarPtr PVDataCreate::createPVScalar(PVScalarPtr const & scalarToClone)
 {
      ScalarType scalarType = scalarToClone->getScalar()->getScalarType();
      PVScalarPtr pvScalar = createPVScalar(scalarType);
-     getConvert()->copyScalar(scalarToClone, pvScalar);
+     pvScalar->copyUnchecked(*scalarToClone);
      return pvScalar;
 }
 
@@ -611,29 +602,29 @@ PVScalarArrayPtr PVDataCreate::createPVScalarArray(
 {
      switch(scalarArray->getElementType()) {
      case pvBoolean:
-           return PVScalarArrayPtr(new DefaultPVBooleanArray(scalarArray));
+           return PVScalarArrayPtr(new PVBooleanArray(scalarArray));
      case pvByte:
-           return PVScalarArrayPtr(new BasePVByteArray(scalarArray));
+           return PVScalarArrayPtr(new PVByteArray(scalarArray));
      case pvShort:
-           return PVScalarArrayPtr(new BasePVShortArray(scalarArray));
+           return PVScalarArrayPtr(new PVShortArray(scalarArray));
      case pvInt:
-           return PVScalarArrayPtr(new BasePVIntArray(scalarArray));
+           return PVScalarArrayPtr(new PVIntArray(scalarArray));
      case pvLong:
-           return PVScalarArrayPtr(new BasePVLongArray(scalarArray));
+           return PVScalarArrayPtr(new PVLongArray(scalarArray));
      case pvUByte:
-           return PVScalarArrayPtr(new BasePVUByteArray(scalarArray));
+           return PVScalarArrayPtr(new PVUByteArray(scalarArray));
      case pvUShort:
-           return PVScalarArrayPtr(new BasePVUShortArray(scalarArray));
+           return PVScalarArrayPtr(new PVUShortArray(scalarArray));
      case pvUInt:
-           return PVScalarArrayPtr(new BasePVUIntArray(scalarArray));
+           return PVScalarArrayPtr(new PVUIntArray(scalarArray));
      case pvULong:
-           return PVScalarArrayPtr(new BasePVULongArray(scalarArray));
+           return PVScalarArrayPtr(new PVULongArray(scalarArray));
      case pvFloat:
-           return PVScalarArrayPtr(new BasePVFloatArray(scalarArray));
+           return PVScalarArrayPtr(new PVFloatArray(scalarArray));
      case pvDouble:
-           return PVScalarArrayPtr(new BasePVDoubleArray(scalarArray));
+           return PVScalarArrayPtr(new PVDoubleArray(scalarArray));
      case pvString:
-           return PVScalarArrayPtr(new BasePVStringArray(scalarArray));
+           return PVScalarArrayPtr(new PVStringArray(scalarArray));
      }
      throw std::logic_error("PVDataCreate::createPVScalarArray should never get here");
      
@@ -712,7 +703,7 @@ PVStructurePtr PVDataCreate::createPVStructure(PVStructurePtr const & structToCl
     }
     StructureConstPtr structure = structToClone->getStructure();
     PVStructurePtr pvStructure(new PVStructure(structure));
-    getConvert()->copyStructure(structToClone,pvStructure);
+    pvStructure->copyUnchecked(*structToClone);
     return pvStructure;
 }
 
@@ -724,20 +715,57 @@ PVUnionPtr PVDataCreate::createPVUnion(PVUnionPtr const & unionToClone)
     return punion;
 }
 
-// TODO not thread-safe (local static initializers)
-// TODO replace with non-locking singleton pattern
-PVDataCreatePtr PVDataCreate::getPVDataCreate()
+namespace detail {
+struct pvfield_factory {
+    PVDataCreatePtr pvDataCreate;
+    pvfield_factory() :pvDataCreate(new PVDataCreate()) {
+        registerRefCounter("PVField", &PVField::num_instances);
+    }
+};
+}
+
+static detail::pvfield_factory* pvfield_factory_s;
+static epicsThreadOnceId pvfield_factory_once = EPICS_THREAD_ONCE_INIT;
+
+static void pvfield_factory_init(void*)
 {
-    static PVDataCreatePtr pvDataCreate;
-    static Mutex mutex;
-    Lock xx(mutex);
-
-    if(pvDataCreate.get()==0) pvDataCreate = PVDataCreatePtr(new PVDataCreate());
-    return pvDataCreate;
+    try {
+        pvfield_factory_s = new detail::pvfield_factory;
+    }catch(std::exception& e){
+        std::cerr<<"Error initializing getFieldCreate() : "<<e.what()<<"\n";
+    }
 }
 
-PVDataCreatePtr getPVDataCreate() {
-     return PVDataCreate::getPVDataCreate();
+const PVDataCreatePtr& PVDataCreate::getPVDataCreate()
+{
+    epicsThreadOnce(&pvfield_factory_once, &pvfield_factory_init, 0);
+    if(!pvfield_factory_s->pvDataCreate)
+        throw std::logic_error("getPVDataCreate() not initialized");
+    return pvfield_factory_s->pvDataCreate;
+}
+
+// explicitly instanciate to ensure that windows
+// builds emit exported symbols for inline'd methods
+template class PVScalarValue<boolean>;
+template class PVScalarValue<int8>;
+template class PVScalarValue<uint8>;
+template class PVScalarValue<int16>;
+template class PVScalarValue<uint16>;
+template class PVScalarValue<int32>;
+template class PVScalarValue<uint32>;
+template class PVScalarValue<int64>;
+template class PVScalarValue<uint64>;
+template class PVScalarValue<float>;
+template class PVScalarValue<double>;
+template class PVScalarValue<std::string>;
+
+}} // namespace epics::pvData
+
+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

@@ -1,8 +1,7 @@
 /*PVField.cpp*/
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
  */
 /**
  *  @author mrk
@@ -12,11 +11,13 @@
 #include <string>
 #include <cstdio>
 
+#include <epicsMutex.h>
+
 #define epicsExportSharedSymbols
 #include <pv/lock.h>
 #include <pv/pvData.h>
 #include <pv/factory.h>
-#include <pv/convert.h>
+#include <pv/reftrack.h>
 
 using std::tr1::const_pointer_cast;
 using std::size_t;
@@ -24,16 +25,20 @@ using std::string;
 
 namespace epics { namespace pvData {
 
+size_t PVField::num_instances;
+
 PVField::PVField(FieldConstPtr field)
-: notImplemented("not implemented"),
-  parent(NULL),field(field),
+: parent(NULL),field(field),
   fieldOffset(0), nextFieldOffset(0),
   immutable(false)
 {
+    REFTRACE_INCREMENT(num_instances);
 }
 
 PVField::~PVField()
-{ }
+{
+    REFTRACE_DECREMENT(num_instances);
+}
 
 
 size_t PVField::getFieldOffset() const
@@ -55,22 +60,16 @@ size_t PVField::getNumberFields() const
 }
 
 
-bool PVField::isImmutable() const {return immutable;}
-
 void PVField::setImmutable() {immutable = true;}
 
-const FieldConstPtr & PVField::getField() const {return field;}
-
-PVStructure *PVField::getParent() const {return parent;}
-
 void PVField::postPut() 
 {
-   if(postHandler.get()!=NULL) postHandler->postPut();
+   if(postHandler) postHandler->postPut();
 }
 
 void PVField::setPostHandler(PostHandlerPtr const &handler)
 {
-    if(postHandler.get()!=NULL) {
+    if(postHandler) {
         if(postHandler.get()==handler.get()) return;
         throw std::logic_error(
             "PVField::setPostHandler a postHandler is already registered");
@@ -98,7 +97,7 @@ std::ostream& operator<<(std::ostream& o, const PVField& f)
 string PVField::getFullName() const
 {
     string ret(fieldName);
-    for(PVField *fld=getParent(); fld; fld=fld->getParent())
+    for(const PVField *fld=getParent(); fld; fld=fld->getParent())
     {
         if(fld->getFieldName().size()==0) break;
         ret = fld->getFieldName() + '.' + ret;
@@ -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 +179,71 @@ 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() != from.getField())
+        throw std::invalid_argument("field types do not match");
+
+    copyUnchecked(from);
+}
+
+void PVField::copyUnchecked(const PVField& from)
+{
+    assert(getField()==from.getField());
+
+    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/PVScalar.cpp

@@ -1,8 +1,7 @@
 /*PVScalar.cpp*/
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
  */
 /**
  *  @author mrk
@@ -29,22 +28,4 @@ namespace epics { namespace pvData {
     {
        return static_pointer_cast<const Scalar>(PVField::getField());
     }
-
-    template<>
-    std::ostream& PVScalarValue<int8>::dumpValue(std::ostream& o) const
-    {
-        return o << static_cast<int>(get());
-    }
-
-    template<>
-    std::ostream& PVScalarValue<uint8>::dumpValue(std::ostream& o) const
-    {
-    	return o << static_cast<unsigned int>(get());
-    }
-
-    template<>
-    std::ostream& PVScalarValue<boolean>::dumpValue(std::ostream& o) const
-    {
-        return o << std::boolalpha << static_cast<bool>(get());
-    }
 }}

src/factory/PVScalarArray.cpp

@@ -1,8 +1,7 @@
 /*PVScalarArray.cpp*/
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
  */
 /**
  *  @author mrk

src/factory/PVStructure.cpp

@@ -1,8 +1,7 @@
 /*PVStructure.cpp*/
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
  */
 /**
  *  @author mrk
@@ -16,7 +15,6 @@
 #define epicsExportSharedSymbols
 #include <pv/pvData.h>
 #include <pv/pvIntrospect.h>
-#include <pv/convert.h>
 #include <pv/factory.h>
 #include <pv/bitSet.h>
 
@@ -26,38 +24,14 @@ using std::string;
 
 namespace epics { namespace pvData {
 
-PVFieldPtr PVStructure::nullPVField;
-PVBooleanPtr PVStructure::nullPVBoolean;
-PVBytePtr PVStructure::nullPVByte;
-PVShortPtr PVStructure::nullPVShort;
-PVIntPtr PVStructure::nullPVInt;
-PVLongPtr PVStructure::nullPVLong;
-PVUBytePtr PVStructure::nullPVUByte;
-PVUShortPtr PVStructure::nullPVUShort;
-PVUIntPtr PVStructure::nullPVUInt;
-PVULongPtr PVStructure::nullPVULong;
-PVFloatPtr PVStructure::nullPVFloat;
-PVDoublePtr PVStructure::nullPVDouble;
-PVStringPtr PVStructure::nullPVString;
-PVStructurePtr PVStructure::nullPVStructure;
-PVStructureArrayPtr PVStructure::nullPVStructureArray;
-PVUnionPtr PVStructure::nullPVUnion;
-PVUnionArrayPtr PVStructure::nullPVUnionArray;
-PVScalarArrayPtr PVStructure::nullPVScalarArray;
-
-static PVFieldPtr findSubField(
-    string const &fieldName,
-    const PVStructure *pvStructure);
-
 PVStructure::PVStructure(StructureConstPtr const & structurePtr)
 : PVField(structurePtr),
   structurePtr(structurePtr),
   extendsStructureName("")
 {
     size_t numberFields = structurePtr->getNumberFields();
-    FieldConstPtrArray fields = structurePtr->getFields();
-    StringArray fieldNames = structurePtr->getFieldNames();
-//    PVFieldPtrArray * xxx = const_cast<PVFieldPtrArray *>(&pvFields);
+    FieldConstPtrArray const & fields = structurePtr->getFields();
+    StringArray const & fieldNames = structurePtr->getFieldNames();
     pvFields.reserve(numberFields);
     PVDataCreatePtr pvDataCreate = getPVDataCreate();
     for(size_t i=0; i<numberFields; i++) {
@@ -76,7 +50,7 @@ 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]);
@@ -86,9 +60,7 @@ PVStructure::PVStructure(StructureConstPtr const & structurePtr,
     }
 }
 
-PVStructure::~PVStructure()
-{
-}
+PVStructure::~PVStructure() {}
 
 void PVStructure::setImmutable()
 {
@@ -100,145 +72,149 @@ void PVStructure::setImmutable()
     PVField::setImmutable();
 }
 
-StructureConstPtr PVStructure::getStructure() const
+PVFieldPtr  PVStructure::getSubFieldImpl(size_t fieldOffset, bool throws) const
 {
-    return structurePtr;
-}
+    const PVStructure *current = this;
 
-const PVFieldPtrArray & PVStructure::getPVFields() const
-{
-    return pvFields;
-}
-
-PVFieldPtr  PVStructure::getSubField(string const &fieldName) const
-{
-    return findSubField(fieldName,this);
-}
-
-
-PVFieldPtr  PVStructure::getSubField(size_t fieldOffset) const
-{
-    if(fieldOffset<=getFieldOffset()) {
-        return nullPVField;
-    }
-    if(fieldOffset>getNextFieldOffset()) return nullPVField;
-    size_t numFields = pvFields.size();
-    for(size_t i=0; i<numFields; i++) {
-        PVFieldPtr pvField  = pvFields[i];
-        if(pvField->getFieldOffset()==fieldOffset) return pvFields[i];
-        if(pvField->getNextFieldOffset()<=fieldOffset) continue;
-        if(pvField->getField()->getType()==structure) {
-            PVStructure *pvStructure = static_cast<PVStructure *>(pvField.get());
-            return pvStructure->getSubField(fieldOffset);
+recurse:
+    // we don't permit self lookup
+    if(fieldOffset<=current->getFieldOffset() || fieldOffset>=current->getNextFieldOffset()) {
+        if(throws) {
+            std::stringstream ss;
+            ss << "Failed to get field with offset "
+               << fieldOffset << " (Invalid offset)" ;
+            throw std::runtime_error(ss.str());
+        } else {
+            return PVFieldPtr();
         }
     }
+
+    for(size_t i=0, numFields = current->pvFields.size(); i<numFields; i++) {
+        const PVFieldPtr& pvField  = current->pvFields[i];
+
+        if(pvField->getFieldOffset()==fieldOffset) {
+            return pvField;
+
+        } else if(pvField->getNextFieldOffset()<=fieldOffset) {
+            continue;
+
+        } else if(pvField->getField()->getType()==structure) {
+            current = static_cast<PVStructure *>(pvField.get());
+            goto recurse;
+        }
+    }
+    // the first test against current->getNextFieldOffset() would avoid this
     throw std::logic_error("PVStructure.getSubField: Logic error");
 }
 
-
-PVBooleanPtr PVStructure::getBooleanField(string const &fieldName)
+PVFieldPtr PVStructure::getSubFieldImpl(const char *name, bool throws) 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;
+    const PVStructure *parent = this;
+    if(!name)
+    {
+        if (throws)
+            throw std::invalid_argument("Failed to get field: (Field name is NULL string)");
+        else
+            return PVFieldPtr();
     }
-    FieldConstPtr field = pvField->getField();
-    Type type = field->getType();
-    if(type!=scalarArray) {
-        return nullPVScalarArray;
+    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 PVFieldPtr();
+        }
+        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 PVFieldPtr();
+        }
+
+        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 PVFieldPtr();
+        }
+
+        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 PVFieldPtr();
+            }
+            child = NULL;
+            name = sep+1; // skip past '.'
+            // loop around to new parent
+
+        } else {
+            return child->shared_from_this();
+        }
     }
-    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)
+void PVStructure::throwBadFieldType(const char *name)
 {
-    return getSubField<PVStructureArray>(fieldName);
+    std::ostringstream ss;
+    ss << "Failed to get field: " << name << " (Field has wrong type)";
+    throw std::runtime_error(ss.str());
 }
 
-PVUnionArrayPtr PVStructure::getUnionArrayField(
-    string const &fieldName)
+void PVStructure::throwBadFieldType(std::size_t fieldOffset)
 {
-    return getSubField<PVUnionArray>(fieldName);
+    std::stringstream ss;
+    ss << "Failed to get field with offset "
+       << fieldOffset << " (Field has wrong type)";
+    throw std::runtime_error(ss.str());
 }
 
-
 void PVStructure::serialize(ByteBuffer *pbuffer,
         SerializableControl *pflusher) const {
     size_t fieldsSize = pvFields.size();
@@ -256,9 +232,8 @@ void PVStructure::deserialize(ByteBuffer *pbuffer,
 
 void PVStructure::serialize(ByteBuffer *pbuffer,
         SerializableControl *pflusher, BitSet *pbitSet) const {
-	PVStructure* nonConstThis = const_cast<PVStructure*>(this);
-    size_t numberFields = nonConstThis->getNumberFields();
-    size_t offset = nonConstThis->getFieldOffset();
+    size_t numberFields = this->getNumberFields();
+    size_t offset = this->getFieldOffset();
     int32 next = pbitSet->nextSetBit(static_cast<uint32>(offset));
 
     // no more changes or no changes in this structure
@@ -272,7 +247,7 @@ void PVStructure::serialize(ByteBuffer *pbuffer,
 
     size_t fieldsSize = pvFields.size();
     for(size_t i = 0; i<fieldsSize; i++) {
-        PVFieldPtr pvField = pvFields[i];
+        PVField* pvField = pvFields[i].get();
         offset = pvField->getFieldOffset();
         int32 inumberFields = static_cast<int32>(pvField->getNumberFields());
         next = pbitSet->nextSetBit(static_cast<uint32>(offset));
@@ -286,8 +261,7 @@ void PVStructure::serialize(ByteBuffer *pbuffer,
         if(inumberFields==1) {
             pvField->serialize(pbuffer, pflusher);
         } else {
-            PVStructurePtr pvStructure = std::tr1::static_pointer_cast<PVStructure>(pvField);
-            pvStructure->serialize(pbuffer, pflusher, pbitSet);
+            static_cast<PVStructure*>(pvField)->serialize(pbuffer, pflusher, pbitSet);
        }
     }
 }
@@ -328,37 +302,6 @@ 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 +325,79 @@ 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

@@ -1,8 +1,7 @@
 /*PVStructureArray.cpp*/
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
  */
 /**
  *  @author mrk
@@ -14,7 +13,6 @@
 
 #define epicsExportSharedSymbols
 #include <pv/pvData.h>
-#include <pv/convert.h>
 #include <pv/factory.h>
 #include <pv/serializeHelper.h>
 
@@ -78,14 +76,14 @@ void PVStructureArray::compress() {
     size_t newLength = 0;
 
     for(size_t i=0; i<length; i++) {
-        if(vec[i].get()!=NULL) {
+        if(vec[i]) {
             newLength++;
             continue;
         }
         // find first non 0
         size_t notNull = 0;
         for(size_t j=i+1;j<length;j++) {
-            if(vec[j].get()!=NULL) {
+            if(vec[j]) {
                 notNull = j;
                 break;
             }
@@ -179,7 +177,7 @@ 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 +240,23 @@ 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

@@ -1,8 +1,7 @@
 /*PVUnion.cpp*/
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
  */
 /**
  *  @author mse
@@ -16,7 +15,6 @@
 #define epicsExportSharedSymbols
 #include <pv/pvData.h>
 #include <pv/pvIntrospect.h>
-#include <pv/convert.h>
 #include <pv/factory.h>
 #include <pv/serializeHelper.h>
 
@@ -27,7 +25,9 @@ using std::string;
 namespace epics { namespace pvData {
 	
 #define PVUNION_UNDEFINED_INDEX -1
-int32 PVUnion::UNDEFINED_INDEX = PVUNION_UNDEFINED_INDEX;
+const int32 PVUnion::UNDEFINED_INDEX = PVUNION_UNDEFINED_INDEX;
+
+PVDataCreatePtr PVUnion::pvDataCreate(getPVDataCreate());
 
 PVUnion::PVUnion(UnionConstPtr const & unionPtr)
 : PVField(unionPtr),
@@ -40,24 +40,7 @@ PVUnion::PVUnion(UnionConstPtr const & unionPtr)
 
 #undef PVUNION_UNDEFINED_INDEX
 
-PVUnion::~PVUnion()
-{
-}
-
-UnionConstPtr PVUnion::getUnion() const
-{
-    return unionPtr;
-}
-
-PVFieldPtr PVUnion::get() const
-{
-    return value;
-}
-
-int32 PVUnion::getSelectedIndex() const
-{
-    return selector;
-}
+PVUnion::~PVUnion() {}
 
 string PVUnion::getSelectedFieldName() const
 {
@@ -70,8 +53,11 @@ string PVUnion::getSelectedFieldName() const
 
 PVFieldPtr PVUnion::select(int32 index)
 {
+    if (variant && index != UNDEFINED_INDEX)
+        throw std::invalid_argument("index out of bounds");
+
     // no change
-    if (selector == index)
+    if (selector == index && !variant)
         return value;
 
     if (index == UNDEFINED_INDEX)
@@ -80,14 +66,12 @@ PVFieldPtr PVUnion::select(int32 index)
         value.reset();
         return value;
     }
-    else if (variant)
-        throw std::invalid_argument("index out of bounds");
-    else if (index < 0 || index > static_cast<int32>(unionPtr->getFields().size()))
+    else if (index < 0 || size_t(index) >= unionPtr->getFields().size())
         throw std::invalid_argument("index out of bounds");
 
     FieldConstPtr field = unionPtr->getField(index);
     selector = index;
-    value = getPVDataCreate()->createPVField(field);
+    value = pvDataCreate->createPVField(field);
 
     return value;
 }
@@ -99,11 +83,6 @@ PVFieldPtr PVUnion::select(string const & fieldName)
         throw std::invalid_argument("no such fieldName");
 	return select(index);
 }
-	
-void PVUnion::set(PVFieldPtr const & value)
-{
-    set(selector, value);
-}
 
 void PVUnion::set(int32 index, PVFieldPtr const & value)
 {
@@ -114,14 +93,14 @@ void PVUnion::set(int32 index, PVFieldPtr const & value)
         if (index == UNDEFINED_INDEX)
         {
             // for undefined index we accept only null values
-            if (value.get())
+            if (value)
 				throw std::invalid_argument("non-null value for index == UNDEFINED_INDEX");
         }
-        else if (index < 0 || index > static_cast<int32>(unionPtr->getFields().size()))
+        else if (index < 0 || size_t(index) >= unionPtr->getFields().size())
             throw std::invalid_argument("index out of bounds");
-
-        // value type must match
-        if (value->getField() != unionPtr->getField(index))
+        else if (!value)
+            throw std::invalid_argument("Can't set defined index w/ NULL");
+        else if (value->getField() != unionPtr->getField(index))
 			throw std::invalid_argument("selected field and its introspection data do not match");
     }
 
@@ -136,7 +115,7 @@ void PVUnion::set(string const & fieldName, PVFieldPtr const & value)
     if (index == -1)
         throw std::invalid_argument("no such fieldName");
 
-	set(index, value);
+    set(index, value);
 }
 
 void PVUnion::serialize(ByteBuffer *pbuffer, SerializableControl *pflusher) const
@@ -144,10 +123,10 @@ 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 +150,7 @@ 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 +167,7 @@ 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);
         }
@@ -202,7 +181,7 @@ std::ostream& PVUnion::dumpValue(std::ostream& o) const
     o << format::indent() << getUnion()->getID() << ' ' << getFieldName() << std::endl;
     {
     	format::indent_scope s(o);
-		PVFieldPtr fieldField = get();
+        const PVField::const_shared_pointer& fieldField = get();
 		if (fieldField.get() == NULL)
 		  o << format::indent() << "(none)" << std::endl;
 		else
@@ -217,4 +196,57 @@ 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)
+{
+
+    const PVField::const_shared_pointer& 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

@@ -1,8 +1,7 @@
 /*PVUnionArray.cpp*/
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
  */
 /**
  *  @author mrk
@@ -14,7 +13,6 @@
 
 #define epicsExportSharedSymbols
 #include <pv/pvData.h>
-#include <pv/convert.h>
 #include <pv/factory.h>
 #include <pv/serializeHelper.h>
 
@@ -78,14 +76,14 @@ void PVUnionArray::compress() {
     size_t newLength = 0;
 
     for(size_t i=0; i<length; i++) {
-        if(vec[i].get()!=NULL) {
+        if(vec[i]) {
             newLength++;
             continue;
         }
         // find first non 0
         size_t notNull = 0;
         for(size_t j=i+1;j<length;j++) {
-            if(vec[j].get()!=NULL) {
+            if(vec[j]) {
                 notNull = j;
                 break;
             }
@@ -178,7 +176,7 @@ 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 +239,24 @@ 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

@@ -1,8 +1,7 @@
 /* StandardField.cpp */
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
  */
 /**
  *  @author mrk
@@ -11,6 +10,9 @@
 #include <cstdio>
 #include <stdexcept>
 
+#include <epicsMutex.h>
+#include <epicsThread.h>
+
 #define epicsExportSharedSymbols
 #include <pv/lock.h>
 #include <pv/pvIntrospect.h>
@@ -21,32 +23,85 @@ using std::string;
 
 namespace epics { namespace pvData { 
 
+static
+StructureConstPtr buildValueAlarm(ScalarType vtype)
+{
+    return FieldBuilder::begin()
+            ->setId("valueAlarm_t")
+            ->add("active", pvBoolean)
+            ->add("lowAlarmLimit", vtype)
+            ->add("lowWarningLimit", vtype)
+            ->add("highWarningLimit", vtype)
+            ->add("highAlarmLimit", vtype)
+            ->add("lowAlarmSeverity", pvInt)
+            ->add("lowWarningSeverity", pvInt)
+            ->add("highWarningSeverity", pvInt)
+            ->add("highAlarmSeverity", pvInt)
+            ->add("hysteresis", pvByte)
+            ->createStructure();
+}
 
 StandardField::StandardField()
-:  fieldCreate(getFieldCreate()),
-   notImplemented("not implemented"),
-   valueFieldName("value")
-{}
+    :fieldCreate(getFieldCreate())
+    ,notImplemented("not implemented")
+    ,valueFieldName("value")
 
-void StandardField::init()
-{
-    createAlarm();
-    createTimeStamp();
-    createDisplay();
-    createControl();
-    createBooleanAlarm();
-    createByteAlarm();
-    createShortAlarm();
-    createIntAlarm();
-    createLongAlarm();
-    createUByteAlarm();
-    createUShortAlarm();
-    createUIntAlarm();
-    createULongAlarm();
-    createFloatAlarm();
-    createDoubleAlarm();
-    createEnumeratedAlarm();
-}
+    ,alarmField(FieldBuilder::begin()
+                ->setId("alarm_t")
+                ->add("severity", pvInt)
+                ->add("status", pvInt)
+                ->add("message", pvString)
+                ->createStructure())
+
+    ,timeStampField(FieldBuilder::begin()
+                    ->setId("time_t")
+                    ->add("secondsPastEpoch", pvLong)
+                    ->add("nanoseconds", pvInt)
+                    ->add("userTag", pvInt)
+                    ->createStructure())
+
+    ,displayField(FieldBuilder::begin()
+                  ->setId("display_t")
+                  ->add("limitLow", pvDouble)
+                  ->add("limitHigh", pvDouble)
+                  ->add("description", pvString)
+                  ->add("format", pvString)
+                  ->add("units", pvString)
+                  ->createStructure())
+
+    ,controlField(FieldBuilder::begin()
+                  ->setId("control_t")
+                  ->add("limitLow", pvDouble)
+                  ->add("limitHigh", pvDouble)
+                  ->add("minStep", pvDouble)
+                  ->createStructure())
+
+    ,booleanAlarmField(FieldBuilder::begin()
+                       ->setId("valueAlarm_t")
+                       ->add("active", pvBoolean)
+                       ->add("falseSeverity", pvInt)
+                       ->add("trueSeverity", pvInt)
+                       ->add("changeStateSeverity", pvInt)
+                       ->createStructure())
+
+    ,byteAlarmField(buildValueAlarm(pvByte))
+    ,shortAlarmField(buildValueAlarm(pvShort))
+    ,intAlarmField(buildValueAlarm(pvInt))
+    ,longAlarmField(buildValueAlarm(pvLong))
+    ,ubyteAlarmField(buildValueAlarm(pvUByte))
+    ,ushortAlarmField(buildValueAlarm(pvUShort))
+    ,uintAlarmField(buildValueAlarm(pvUInt))
+    ,ulongAlarmField(buildValueAlarm(pvULong))
+    ,floatAlarmField(buildValueAlarm(pvFloat))
+    ,doubleAlarmField(buildValueAlarm(pvDouble))
+
+    ,enumeratedAlarmField(FieldBuilder::begin()
+                          ->setId("valueAlarm_t")
+                          ->add("active", pvBoolean)
+                          ->add("stateSeverity", pvInt)
+                          ->add("changeStateSeverity", pvInt)
+                          ->createStructure())
+{}
 
 StandardField::~StandardField(){}
 
@@ -89,9 +144,9 @@ 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];
@@ -144,361 +199,6 @@ StructureConstPtr StandardField::createProperties(string id,FieldConstPtr field,
     return fieldCreate->createStructure(id,names,fields);
 }
 
-void StandardField::createAlarm() {
-    size_t num = 3;
-    FieldConstPtrArray fields(num);
-    StringArray names(num);
-    names[0] = "severity";
-    names[1] = "status";
-    names[2] = "message";
-    fields[0] = fieldCreate->createScalar(pvInt);
-    fields[1] = fieldCreate->createScalar(pvInt);
-    fields[2] = fieldCreate->createScalar(pvString);
-    alarmField = fieldCreate->createStructure("alarm_t",names,fields);
-}
-
-void StandardField::createTimeStamp() {
-    size_t num = 3;
-    FieldConstPtrArray fields(num);
-    StringArray names(num);
-    names[0] = "secondsPastEpoch";
-    names[1] = "nanoseconds";
-    names[2] = "userTag";
-    fields[0] = fieldCreate->createScalar(pvLong);
-    fields[1] = fieldCreate->createScalar(pvInt);
-    fields[2] = fieldCreate->createScalar(pvInt);
-    timeStampField = fieldCreate->createStructure("time_t",names,fields);
-}
-
-void StandardField::createDisplay() {
-    size_t num = 5;
-    FieldConstPtrArray fields(num);
-    StringArray names(num);
-    names[0] = "limitLow";
-    names[1] = "limitHigh";
-    names[2] = "description";
-    names[3] = "format";
-    names[4] = "units";
-    fields[0] = fieldCreate->createScalar(pvDouble);
-    fields[1] = fieldCreate->createScalar(pvDouble);
-    fields[2] = fieldCreate->createScalar(pvString);
-    fields[3] = fieldCreate->createScalar(pvString);
-    fields[4] = fieldCreate->createScalar(pvString);
-    displayField = fieldCreate->createStructure("display_t",names,fields);
-}
-
-void StandardField::createControl() {
-    size_t num = 3;
-    FieldConstPtrArray fields(num);
-    StringArray names(num);
-    names[0] = "limitLow";
-    names[1] = "limitHigh";
-    names[2] = "minStep";
-    fields[0] = fieldCreate->createScalar(pvDouble);
-    fields[1] = fieldCreate->createScalar(pvDouble);
-    fields[2] = fieldCreate->createScalar(pvDouble);
-    controlField = fieldCreate->createStructure("control_t",names,fields);
-}
-
-void StandardField::createBooleanAlarm() {
-    size_t numFields = 4;
-    FieldConstPtrArray fields(numFields);
-    StringArray names(numFields);
-    names[0] = "active";
-    names[1] = "falseSeverity";
-    names[2] = "trueSeverity";
-    names[3] = "changeStateSeverity";
-    fields[0] = fieldCreate->createScalar(pvBoolean);
-    fields[1] = fieldCreate->createScalar(pvInt);
-    fields[2] = fieldCreate->createScalar(pvInt);
-    fields[3] = fieldCreate->createScalar(pvInt);
-    booleanAlarmField = fieldCreate->createStructure("valueAlarm_t",names,fields);
-}
-
-void StandardField::createByteAlarm() {
-    size_t numFields = 10;
-    FieldConstPtrArray fields(numFields);
-    StringArray names(numFields);
-    names[0] = "active";
-    names[1] = "lowAlarmLimit";
-    names[2] = "lowWarningLimit";
-    names[3] = "highWarningLimit";
-    names[4] = "highAlarmLimit";
-    names[5] = "lowAlarmSeverity";
-    names[6] = "lowWarningSeverity";
-    names[7] = "highWarningSeverity";
-    names[8] = "highAlarmSeverity";
-    names[9] =  "hysteresis";
-    fields[0] = fieldCreate->createScalar(pvBoolean);
-    fields[1] = fieldCreate->createScalar(pvByte);
-    fields[2] = fieldCreate->createScalar(pvByte);
-    fields[3] = fieldCreate->createScalar(pvByte);
-    fields[4] = fieldCreate->createScalar(pvByte);
-    fields[5] = fieldCreate->createScalar(pvInt);
-    fields[6] = fieldCreate->createScalar(pvInt);
-    fields[7] = fieldCreate->createScalar(pvInt);
-    fields[8] = fieldCreate->createScalar(pvInt);
-    fields[9] = fieldCreate->createScalar(pvByte);
-    byteAlarmField = fieldCreate->createStructure("valueAlarm_t",names,fields);
-}
-
-void StandardField::createShortAlarm() {
-    size_t numFields = 10;
-    FieldConstPtrArray fields(numFields);
-    StringArray names(numFields);
-    names[0] = "active";
-    names[1] = "lowAlarmLimit";
-    names[2] = "lowWarningLimit";
-    names[3] = "highWarningLimit";
-    names[4] = "highAlarmLimit";
-    names[5] = "lowAlarmSeverity";
-    names[6] = "lowWarningSeverity";
-    names[7] = "highWarningSeverity";
-    names[8] = "highAlarmSeverity";
-    names[9] =  "hysteresis";
-    fields[0] = fieldCreate->createScalar(pvBoolean);
-    fields[1] = fieldCreate->createScalar(pvShort);
-    fields[2] = fieldCreate->createScalar(pvShort);
-    fields[3] = fieldCreate->createScalar(pvShort);
-    fields[4] = fieldCreate->createScalar(pvShort);
-    fields[5] = fieldCreate->createScalar(pvInt);
-    fields[6] = fieldCreate->createScalar(pvInt);
-    fields[7] = fieldCreate->createScalar(pvInt);
-    fields[8] = fieldCreate->createScalar(pvInt);
-    fields[9] = fieldCreate->createScalar(pvShort);
-    shortAlarmField = fieldCreate->createStructure("valueAlarm_t",names,fields);
-}
-
-void StandardField::createIntAlarm() {
-    size_t numFields = 10;
-    FieldConstPtrArray fields(numFields);
-    StringArray names(numFields);
-    names[0] = "active";
-    names[1] = "lowAlarmLimit";
-    names[2] = "lowWarningLimit";
-    names[3] = "highWarningLimit";
-    names[4] = "highAlarmLimit";
-    names[5] = "lowAlarmSeverity";
-    names[6] = "lowWarningSeverity";
-    names[7] = "highWarningSeverity";
-    names[8] = "highAlarmSeverity";
-    names[9] =  "hysteresis";
-    fields[0] = fieldCreate->createScalar(pvBoolean);
-    fields[1] = fieldCreate->createScalar(pvInt);
-    fields[2] = fieldCreate->createScalar(pvInt);
-    fields[3] = fieldCreate->createScalar(pvInt);
-    fields[4] = fieldCreate->createScalar(pvInt);
-    fields[5] = fieldCreate->createScalar(pvInt);
-    fields[6] = fieldCreate->createScalar(pvInt);
-    fields[7] = fieldCreate->createScalar(pvInt);
-    fields[8] = fieldCreate->createScalar(pvInt);
-    fields[9] = fieldCreate->createScalar(pvInt);
-    intAlarmField = fieldCreate->createStructure("valueAlarm_t",names,fields);
-}
-
-void StandardField::createLongAlarm() {
-    size_t numFields = 10;
-    FieldConstPtrArray fields(numFields);
-    StringArray names(numFields);
-    names[0] = "active";
-    names[1] = "lowAlarmLimit";
-    names[2] = "lowWarningLimit";
-    names[3] = "highWarningLimit";
-    names[4] = "highAlarmLimit";
-    names[5] = "lowAlarmSeverity";
-    names[6] = "lowWarningSeverity";
-    names[7] = "highWarningSeverity";
-    names[8] = "highAlarmSeverity";
-    names[9] =  "hysteresis";
-    fields[0] = fieldCreate->createScalar(pvBoolean);
-    fields[1] = fieldCreate->createScalar(pvLong);
-    fields[2] = fieldCreate->createScalar(pvLong);
-    fields[3] = fieldCreate->createScalar(pvLong);
-    fields[4] = fieldCreate->createScalar(pvLong);
-    fields[5] = fieldCreate->createScalar(pvInt);
-    fields[6] = fieldCreate->createScalar(pvInt);
-    fields[7] = fieldCreate->createScalar(pvInt);
-    fields[8] = fieldCreate->createScalar(pvInt);
-    fields[9] = fieldCreate->createScalar(pvLong);
-    longAlarmField = fieldCreate->createStructure("valueAlarm_t",names,fields);
-}
-
-void StandardField::createUByteAlarm() {
-    size_t numFields = 10;
-    FieldConstPtrArray fields(numFields);
-    StringArray names(numFields);
-    names[0] = "active";
-    names[1] = "lowAlarmLimit";
-    names[2] = "lowWarningLimit";
-    names[3] = "highWarningLimit";
-    names[4] = "highAlarmLimit";
-    names[5] = "lowAlarmSeverity";
-    names[6] = "lowWarningSeverity";
-    names[7] = "highWarningSeverity";
-    names[8] = "highAlarmSeverity";
-    names[9] =  "hysteresis";
-    fields[0] = fieldCreate->createScalar(pvBoolean);
-    fields[1] = fieldCreate->createScalar(pvUByte);
-    fields[2] = fieldCreate->createScalar(pvUByte);
-    fields[3] = fieldCreate->createScalar(pvUByte);
-    fields[4] = fieldCreate->createScalar(pvUByte);
-    fields[5] = fieldCreate->createScalar(pvInt);
-    fields[6] = fieldCreate->createScalar(pvInt);
-    fields[7] = fieldCreate->createScalar(pvInt);
-    fields[8] = fieldCreate->createScalar(pvInt);
-    fields[9] = fieldCreate->createScalar(pvUByte);
-    ubyteAlarmField = fieldCreate->createStructure("valueAlarm_t",names,fields);
-}
-
-void StandardField::createUShortAlarm() {
-    size_t numFields = 10;
-    FieldConstPtrArray fields(numFields);
-    StringArray names(numFields);
-    names[0] = "active";
-    names[1] = "lowAlarmLimit";
-    names[2] = "lowWarningLimit";
-    names[3] = "highWarningLimit";
-    names[4] = "highAlarmLimit";
-    names[5] = "lowAlarmSeverity";
-    names[6] = "lowWarningSeverity";
-    names[7] = "highWarningSeverity";
-    names[8] = "highAlarmSeverity";
-    names[9] =  "hysteresis";
-    fields[0] = fieldCreate->createScalar(pvBoolean);
-    fields[1] = fieldCreate->createScalar(pvUShort);
-    fields[2] = fieldCreate->createScalar(pvUShort);
-    fields[3] = fieldCreate->createScalar(pvUShort);
-    fields[4] = fieldCreate->createScalar(pvUShort);
-    fields[5] = fieldCreate->createScalar(pvInt);
-    fields[6] = fieldCreate->createScalar(pvInt);
-    fields[7] = fieldCreate->createScalar(pvInt);
-    fields[8] = fieldCreate->createScalar(pvInt);
-    fields[9] = fieldCreate->createScalar(pvUShort);
-    ushortAlarmField = fieldCreate->createStructure("valueAlarm_t",names,fields);
-}
-
-void StandardField::createUIntAlarm() {
-    size_t numFields = 10;
-    FieldConstPtrArray fields(numFields);
-    StringArray names(numFields);
-    names[0] = "active";
-    names[1] = "lowAlarmLimit";
-    names[2] = "lowWarningLimit";
-    names[3] = "highWarningLimit";
-    names[4] = "highAlarmLimit";
-    names[5] = "lowAlarmSeverity";
-    names[6] = "lowWarningSeverity";
-    names[7] = "highWarningSeverity";
-    names[8] = "highAlarmSeverity";
-    names[9] =  "hysteresis";
-    fields[0] = fieldCreate->createScalar(pvBoolean);
-    fields[1] = fieldCreate->createScalar(pvUInt);
-    fields[2] = fieldCreate->createScalar(pvUInt);
-    fields[3] = fieldCreate->createScalar(pvUInt);
-    fields[4] = fieldCreate->createScalar(pvUInt);
-    fields[5] = fieldCreate->createScalar(pvInt);
-    fields[6] = fieldCreate->createScalar(pvInt);
-    fields[7] = fieldCreate->createScalar(pvInt);
-    fields[8] = fieldCreate->createScalar(pvInt);
-    fields[9] = fieldCreate->createScalar(pvUInt);
-    uintAlarmField = fieldCreate->createStructure("valueAlarm_t",names,fields);
-}
-
-void StandardField::createULongAlarm() {
-    size_t numFields = 10;
-    FieldConstPtrArray fields(numFields);
-    StringArray names(numFields);
-    names[0] = "active";
-    names[1] = "lowAlarmLimit";
-    names[2] = "lowWarningLimit";
-    names[3] = "highWarningLimit";
-    names[4] = "highAlarmLimit";
-    names[5] = "lowAlarmSeverity";
-    names[6] = "lowWarningSeverity";
-    names[7] = "highWarningSeverity";
-    names[8] = "highAlarmSeverity";
-    names[9] =  "hysteresis";
-    fields[0] = fieldCreate->createScalar(pvBoolean);
-    fields[1] = fieldCreate->createScalar(pvULong);
-    fields[2] = fieldCreate->createScalar(pvULong);
-    fields[3] = fieldCreate->createScalar(pvULong);
-    fields[4] = fieldCreate->createScalar(pvULong);
-    fields[5] = fieldCreate->createScalar(pvInt);
-    fields[6] = fieldCreate->createScalar(pvInt);
-    fields[7] = fieldCreate->createScalar(pvInt);
-    fields[8] = fieldCreate->createScalar(pvInt);
-    fields[9] = fieldCreate->createScalar(pvULong);
-    ulongAlarmField = fieldCreate->createStructure("valueAlarm_t",names,fields);
-}
-
-void StandardField::createFloatAlarm() {
-    size_t numFields = 10;
-    FieldConstPtrArray fields(numFields);
-    StringArray names(numFields);
-    names[0] = "active";
-    names[1] = "lowAlarmLimit";
-    names[2] = "lowWarningLimit";
-    names[3] = "highWarningLimit";
-    names[4] = "highAlarmLimit";
-    names[5] = "lowAlarmSeverity";
-    names[6] = "lowWarningSeverity";
-    names[7] = "highWarningSeverity";
-    names[8] = "highAlarmSeverity";
-    names[9] =  "hysteresis";
-    fields[0] = fieldCreate->createScalar(pvBoolean);
-    fields[1] = fieldCreate->createScalar(pvFloat);
-    fields[2] = fieldCreate->createScalar(pvFloat);
-    fields[3] = fieldCreate->createScalar(pvFloat);
-    fields[4] = fieldCreate->createScalar(pvFloat);
-    fields[5] = fieldCreate->createScalar(pvInt);
-    fields[6] = fieldCreate->createScalar(pvInt);
-    fields[7] = fieldCreate->createScalar(pvInt);
-    fields[8] = fieldCreate->createScalar(pvInt);
-    fields[9] = fieldCreate->createScalar(pvFloat);
-    floatAlarmField = fieldCreate->createStructure("valueAlarm_t",names,fields);
-}
-
-void StandardField::createDoubleAlarm() {
-    size_t numFields = 10;
-    FieldConstPtrArray fields(numFields);
-    StringArray names(numFields);
-    names[0] = "active";
-    names[1] = "lowAlarmLimit";
-    names[2] = "lowWarningLimit";
-    names[3] = "highWarningLimit";
-    names[4] = "highAlarmLimit";
-    names[5] = "lowAlarmSeverity";
-    names[6] = "lowWarningSeverity";
-    names[7] = "highWarningSeverity";
-    names[8] = "highAlarmSeverity";
-    names[9] =  "hysteresis";
-    fields[0] = fieldCreate->createScalar(pvBoolean);
-    fields[1] = fieldCreate->createScalar(pvDouble);
-    fields[2] = fieldCreate->createScalar(pvDouble);
-    fields[3] = fieldCreate->createScalar(pvDouble);
-    fields[4] = fieldCreate->createScalar(pvDouble);
-    fields[5] = fieldCreate->createScalar(pvInt);
-    fields[6] = fieldCreate->createScalar(pvInt);
-    fields[7] = fieldCreate->createScalar(pvInt);
-    fields[8] = fieldCreate->createScalar(pvInt);
-    fields[9] = fieldCreate->createScalar(pvDouble);
-    doubleAlarmField = fieldCreate->createStructure("valueAlarm_t",names,fields);
-}
-
-void StandardField::createEnumeratedAlarm() {
-    size_t numFields = 3;
-    FieldConstPtrArray fields(numFields);
-    StringArray names(numFields);
-    names[0] = "active";
-    names[1] = "stateSeverity";
-    names[2] = "changeStateSeverity";
-    fields[0] = fieldCreate->createScalar(pvBoolean);
-    fields[1] = fieldCreate->createScalarArray(pvInt);
-    fields[2] = fieldCreate->createScalar(pvInt);
-    enumeratedAlarmField = fieldCreate->createStructure("valueAlarm_t",names,fields);
-}
-
-
 StructureConstPtr StandardField::scalar(
     ScalarType type,string  const &properties)
 {
@@ -554,7 +254,7 @@ 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)
@@ -563,104 +263,21 @@ StructureConstPtr StandardField::enumerated(string  const &properties)
     return createProperties("epics:nt/NTEnum:1.0",field,properties);
 }
 
-StructureConstPtr StandardField::alarm()
+static StandardFieldPtr *stdFieldGbl;
+
+static epicsThreadOnceId stdFieldGblOnce = EPICS_THREAD_ONCE_INIT;
+
+void StandardField::once(void*)
 {
-    return alarmField;
+    stdFieldGbl = new StandardFieldPtr;
+    stdFieldGbl->reset(new StandardField);
 }
 
-StructureConstPtr StandardField::timeStamp()
+const StandardFieldPtr &StandardField::getStandardField()
 {
-    return timeStampField;
-}
+    epicsThreadOnce(&stdFieldGblOnce, &StandardField::once, 0);
 
-StructureConstPtr StandardField::display()
-{
-    return displayField;
-}
-
-StructureConstPtr StandardField::control()
-{
-    return controlField;
-}
-
-StructureConstPtr StandardField::booleanAlarm()
-{
-    return booleanAlarmField;
-}
-
-StructureConstPtr StandardField::byteAlarm()
-{
-    return byteAlarmField;
-}
-
-StructureConstPtr StandardField::ubyteAlarm()
-{
-    return ubyteAlarmField;
-}
-
-StructureConstPtr StandardField::shortAlarm()
-{
-    return shortAlarmField;
-}
-
-StructureConstPtr StandardField::ushortAlarm()
-{
-    return ushortAlarmField;
-}
-
-StructureConstPtr StandardField::intAlarm()
-{
-    return intAlarmField;
-}
-
-StructureConstPtr StandardField::uintAlarm()
-{
-    return uintAlarmField;
-}
-
-StructureConstPtr StandardField::longAlarm()
-{
-    return longAlarmField;
-}
-
-StructureConstPtr StandardField::ulongAlarm()
-{
-    return ulongAlarmField;
-}
-
-StructureConstPtr StandardField::floatAlarm()
-{
-    return floatAlarmField;
-}
-
-StructureConstPtr StandardField::doubleAlarm()
-{
-    return doubleAlarmField;
-}
-
-StructureConstPtr StandardField::enumeratedAlarm()
-{
-    return enumeratedAlarmField;
-}
-
-StandardFieldPtr StandardField::getStandardField()
-{
-    static StandardFieldPtr standardFieldCreate;
-    static Mutex mutex;
-    Lock xx(mutex);
-
-    if(standardFieldCreate.get()==0)
-    {
-        standardFieldCreate = StandardFieldPtr(new StandardField());
-        standardFieldCreate->init();
-    }
-    return standardFieldCreate;
-}
-
-
-
-StandardFieldPtr getStandardField() {
-    return StandardField::getStandardField();
+    return *stdFieldGbl;
 }
 
 }}

src/factory/StandardPVField.cpp

@@ -1,8 +1,7 @@
 /* StandardPVField.cpp */
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
  */
 /**
  *  @author mrk
@@ -10,11 +9,12 @@
 #include <string>
 #include <stdexcept>
 
+#include <epicsMutex.h>
+
 #define epicsExportSharedSymbols
 #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 +67,9 @@ 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->getSubFieldT<PVStringArray>("choices")->replace(freeze(cdata));
     return pvStructure;
 }
 
@@ -80,11 +78,9 @@ 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->getSubFieldT<PVStringArray>("value.choices")->replace(freeze(cdata));
     return pvStructure;
 }
 

src/factory/TypeFunc.cpp

@@ -1,8 +1,7 @@
 /*TypeFunc.cpp*/
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
  */
 /**
  *  @author mrk

src/factory/factory.h

@@ -1,18 +0,0 @@
-/*factory.h*/
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
- */
-/**
- *  @author mrk
- */
-#ifndef FACTORY_H
-#define FACTORY_H
-
-namespace epics { namespace pvData {
-
-    enum DebugLevel{noDebug,lowDebug,highDebug};
-
-}}
-#endif /*FACTORY_H */

src/factory/printer.cpp

@@ -1,297 +1,523 @@
 /* printer.cpp */
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
  */
- 
+
+#include <stdio.h>
+#include <ctype.h>
+#if defined(__linux__) || defined(__APPLE__)
+#include <unistd.h>
+#define HAVE_ISATTY
+#endif
+
 #include <deque>
 
+#include <epicsTime.h>
+#include <epicsString.h>
+
 #define epicsExportSharedSymbols
-#include <pv/printer.h>
-
-using std::string;
-
-namespace {
-
-void indentN(std::ostream& strm, size_t N)
-{
-    while(N--)
-        strm.put(' ');
-}
-
-}
+#include <pv/bitSet.h>
+#include <pv/pvData.h>
+#if EPICS_VERSION_INT>=VERSION_INT(3,15,0,1)
+#  include <pv/json.h>
+#endif
 
 namespace epics { namespace pvData {
 
 namespace format
 {
-    static int indent_index = std::ios_base::xalloc();
+static int indent_index = std::ios_base::xalloc();
 
-    long& indent_value(std::ios_base& ios)
-    {
-      return ios.iword(indent_index);
+long& indent_value(std::ios_base& ios)
+{
+    return ios.iword(indent_index);
+}
+
+std::ostream& operator<<(std::ostream& os, indent_level const& indent)
+{
+    indent_value(os) = indent.level;
+    return os;
+}
+
+std::ostream& operator<<(std::ostream& os, indent const&)
+{
+    long il = indent_value(os);
+    for(long i=0, spaces = il * 4; i<spaces; i++)
+        os.put(' ');
+    return os;
+}
+
+array_at_internal operator<<(std::ostream& str, array_at const& manip)
+{
+    return array_at_internal(manip.index, str);
+}
+}
+
+}} //epics::pvData
+namespace {
+using namespace epics::pvData;
+
+bool useEscapes(std::ostream& strm) {
+    FILE *fp = 0;
+    // TODO: a better way to do this...
+    if(&std::cout==&strm)
+        fp = stdout;
+    if(&std::cerr==&strm)
+        fp = stderr;
+    if(!fp) return false;
+#ifdef HAVE_ISATTY
+    // check $TERM as well?
+    return isatty(fileno(fp))==1;
+#else
+    // TODO: in theory windows 10 can be made to understand escapes as well
+    return false;
+#endif
+}
+
+
+void printAlarmTx(std::ostream& strm, const PVStructure& sub)
+{
+    PVScalar::const_shared_pointer pvSeverity(sub.getSubField<PVInt>("severity"));
+    PVScalar::const_shared_pointer pvStatus(sub.getSubField<PVInt>("status"));
+    PVString::const_shared_pointer pvMessage(sub.getSubField<PVString>("message"));
+
+    switch(pvSeverity ? pvSeverity->getAs<int32>() : 0) {
+    case 0: return; // nothing more to do here...
+    case 1: strm<<"MINOR "; break;
+    case 2: strm<<"MAJOR "; break;
+    case 3: strm<<"INVALID "; break;
+    case 4: strm<<"UNDEFINED "; break;
+    default: strm<<pvSeverity->getAs<int32>()<<' ';
     }
 
-    std::ostream& operator<<(std::ostream& os, indent_level const& indent)
-	{
-		indent_value(os) = indent.level;
-		return os;
-	}
+    switch(pvStatus ? pvStatus->getAs<int32>() : 0) {
+    case 0: break;
+    case 1: strm<<"DEVICE "; break;
+    case 2: strm<<"DRIVER "; break;
+    case 3: strm<<"RECORD "; break;
+    case 4: strm<<"DB "; break;
+    case 5: strm<<"CONF "; break;
+    case 6: strm<<"UNDEFINED "; break;
+    case 7: strm<<"CLIENT "; break;
+    default: strm<<pvStatus->getAs<int32>()<<' ';
+    }
 
-	std::ostream& operator<<(std::ostream& os, indent const&)
-	{
-		long il = indent_value(os);
-		std::size_t spaces = static_cast<std::size_t>(il) * 4;
-		return os << string(spaces, ' ');
-	}
-
-	array_at_internal operator<<(std::ostream& str, array_at const& manip)
-	{
-		return array_at_internal(manip.index, str);
-	}
-};
-
-PrinterBase::PrinterBase()
-    :strm(NULL)
-{}
-
-PrinterBase::~PrinterBase() {}
-
-void PrinterBase::setStream(std::ostream& s)
-{
-    strm = &s;
+    if(pvMessage && !pvMessage->get().empty())
+        strm<<pvMessage->get()<<' ';
 }
 
-void PrinterBase::clearStream()
+
+void printAlarmT(std::ostream& strm, const PVStructure& top)
 {
-    strm = NULL;
+    PVStructure::const_shared_pointer sub(top.getSubField<PVStructure>("alarm"));
+    if(sub)
+        printAlarmTx(strm, *sub);
 }
 
-void PrinterBase::print(const PVField& pv)
+void printTimeTx(std::ostream& strm, const PVStructure& tsubop)
 {
-    if(!strm)
-        throw std::runtime_error("No stream set for PV Printer");
-    impl_print(pv);
+    char timeText[32];
+    epicsTimeStamp epicsTS;
+
+    PVScalar::const_shared_pointer secf(tsubop.getSubField<PVScalar>("secondsPastEpoch")),
+                                   nsecf(tsubop.getSubField<PVScalar>("nanoseconds")),
+                                   tagf(tsubop.getSubField<PVScalar>("userTag"));
+
+    epicsTS.secPastEpoch = secf ? secf->getAs<int64>() : 0;
+    epicsTS.nsec = nsecf ? nsecf->getAs<int32>() : 0;
+
+    if(epicsTS.secPastEpoch > POSIX_TIME_AT_EPICS_EPOCH)
+        epicsTS.secPastEpoch -= POSIX_TIME_AT_EPICS_EPOCH;
+    else
+        epicsTS.secPastEpoch = 0;
+
+    epicsTimeToStrftime(timeText, sizeof(timeText), "%Y-%m-%d %H:%M:%S.%03f", &epicsTS);
+    strm <<std::setw(24) <<std::left <<timeText <<' ';
+    if (tagf) {
+        int64 tagv = tagf->getAs<int64>();
+        if(tagv)
+            strm << tagv << ' ';
+    }
 }
 
-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)
+void printTimeT(std::ostream& strm, const PVStructure& top)
 {
-    static const PVField* marker = (const PVField*)&marker;
+    PVStructure::const_shared_pointer sub(top.getSubField<PVStructure>("timeStamp"));
+    if(sub)
+        printTimeTx(strm, *sub);
+}
 
-    /* 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;
+bool printEnumT(std::ostream& strm, const PVStructure& top, bool fromtop)
+{
+    PVStructure::const_shared_pointer value;
+    if(fromtop) {
+        value = top.getSubField<PVStructure>("value");
+    } else {
+        value = std::tr1::static_pointer_cast<const PVStructure>(top.shared_from_this());
+    }
+    PVScalar::const_shared_pointer idx(value->getSubField<PVScalar>("index"));
+    PVStringArray::const_shared_pointer choices(value->getSubField<PVStringArray>("choices"));
+    if(!idx || !choices) return false;
 
-    todo.push_back(&pv);
+    if(fromtop) {
+        strm<<format::indent();
+        printTimeT(strm, top);
+        printAlarmT(strm, top);
+    }
 
-    while(!todo.empty()) {
-        const PVField *next = todo.front();
-        todo.pop_front();
+    PVStringArray::const_svector ch(choices->view());
+    uint32 I = idx->getAs<uint32>();
+    strm<<'('<<I<<')';
+    if(I>=ch.size()) {
+        strm<<" <undefined>";
+    } else {
+        strm<<' '<<escape(ch[I]);
+    }
+    return true;
+}
 
-        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;
+void csvEscape(std::string& S)
+{
+    // concise, not particularly efficient...
+    std::string temp(escape(S).style(escape::CSV).str());
+    if(S.find_first_of(" ,\\")!=S.npos) {// only quote if necessary (stupid Excel)
+        std::string temp2;
+        temp2.reserve(temp.size()+2);
+        temp2.push_back('\"');
+        temp2 += temp;
+        temp2.push_back('\"');
+        temp2.swap(temp);
+    }
+    S = temp;
+}
 
-            case structureArray:
-                endStructureArray(*static_cast<const PVStructureArray *>(inprog.back()));
-                break;
+bool printTable(std::ostream& strm, const PVStructure& top)
+{
+    PVStructure::const_shared_pointer cf(top.getSubField<PVStructure>("value"));
+    if(!cf) return false;
 
-            case union_:
-                endUnion(*static_cast<const PVUnion *>(inprog.back()));
-                break;
+    {
+        const FieldConstPtrArray& fields = cf->getStructure()->getFields();
+        if(fields.empty()) return false;
+        for(size_t i=0, N=fields.size(); i<N; i++) {
+            if(fields[i]->getType()!=scalarArray)
+                return false; // cowardly refusing to handle anything else...
+        }
+    }
 
-            case unionArray:
-                endUnionArray(*static_cast<const PVUnionArray *>(inprog.back()));
-                break;
+    // maybe output a line with meta-data
+    {
+        bool havets = !!top.getSubField("timeStamp");
+        bool haveal = !!top.getSubField("alarm");
+        if(havets || haveal)
+            strm<<format::indent();
+        if(havets) {
+            printTimeT(strm, top);
+            strm<<' ';
+        }
+        if(haveal) {
+            printAlarmT(strm, top);
+            strm<<' ';
+        }
+        strm<<'\n';
+    }
 
-            default:
-                assert(false); // oops!
-                return;
-            }
-            inprog.pop_back();
+    PVStringArray::svector labels;
+    {
+        PVStringArray::const_shared_pointer lf(top.getSubField<PVStringArray>("labels"));
+        if(lf) {
+            PVStringArray::const_svector L(lf->view());
+            labels = thaw(L);
+        }
+    }
 
+    const PVFieldPtrArray& columns = cf->getPVFields();
+    std::vector<shared_vector<std::string> > coldat(columns.size());
+
+    std::vector<size_t> widths(columns.size());
+    labels.reserve(columns.size());
+
+    size_t nrows = size_t(-1);
+
+    for(size_t i=0, N=columns.size(); i<N; i++) {
+        if(i>=labels.size()) {
+            labels.push_back(cf->getStructure()->getFieldName(i));
         } else {
-            // real field
+            csvEscape(labels[i]);
+        }
+        widths[i] = labels[i].size();
 
-            if(!next) {
-                // NULL entry in a structure array
-                encodeNull();
-                continue;
-            }
+        {
+            shared_vector<const std::string> ro;
+            static_cast<const PVScalarArray*>(columns[i].get())->getAs(ro);
+            coldat[i] = thaw(ro);
+        }
 
-            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();
+        // truncate if some columns are longer than others
+        nrows = std::min(nrows, coldat[i].size());
 
-                    inprog.push_back(next);
+        for(size_t j=0, M=coldat[i].size(); j<M; j++) {
+            csvEscape(coldat[i][j]);
+            widths[i] = std::max(widths[i], coldat[i][j].size());
+        }
+    }
 
-                    beginStructure(fld);
-                    for(size_t i=0, nfld=fld.getStructure()->getNumberFields(); i<nfld; i++)
-                        todo.push_back(vals[i].get());
+    // output header line
+    strm<<format::indent();
+    for(size_t c=0, N=coldat.size(); c<N; c++) {
+        strm<<std::setw(widths[c])<<std::right<<labels[c];
+        if(c+1!=N) {
+            strm<<' ';
+        }
+    }
+    strm<<'\n';
 
-                    todo.push_back(marker);
-                    break;
-                }
-            case structureArray: {
-                    const PVStructureArray &fld = *static_cast<const PVStructureArray*>(next);
-                    PVStructureArray::const_svector vals(fld.view());
+    for(size_t r=0; r<nrows; r++) {
+        strm<<format::indent();
+        for(size_t c=0, N=coldat.size(); c<N; c++) {
+            strm<<std::setw(widths[c])<<std::right<<coldat[c][r];
+            if(c+1!=N)
+                strm<<' ';
+        }
+        strm<<'\n';
+    }
 
-                    inprog.push_back(next);
+    return true;
+}
 
-                    beginStructureArray(fld);
-                    for(PVStructureArray::const_svector::const_iterator it=vals.begin();
-                        it!=vals.end(); ++it)
-                    {
-                        todo.push_back(it->get());
-                    }
+void expandBS(const PVStructure& top, BitSet& mask, bool parents) {
+    if(mask.get(0)) { // special handling because getSubField(0) not allowed
+        // wildcard
+        for(size_t idx=1, N=top.getNumberFields(); idx<N; idx++) {
+            mask.set(idx);
+        }
 
-                    todo.push_back(marker);
-                    break;
-                }
-            case union_: {
-                    const PVUnion &fld = *static_cast<const PVUnion*>(next);
+    } else {
+        for(int32 idx = mask.nextSetBit(0), N=top.getNumberFields(); idx>=0 && idx<N; idx=mask.nextSetBit(idx+1)) {
+            PVField::const_shared_pointer fld = top.getSubFieldT(idx);
 
-                    inprog.push_back(next);
+            // look forward and mark all children
+            for(size_t i=idx+1, N=fld->getNextFieldOffset(); i<N; i++)
+                mask.set(i);
 
-                    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;
+            if(parents) {
+                // look back and mark all parents
+                // we've already stepped past all parents so siblings will not be automatically marked
+                for(const PVStructure *parent = fld->getParent(); parent; parent = parent->getParent()) {
+                    mask.set(parent->getFieldOffset());
                 }
             }
         }
     }
 }
 
-
-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++;
 }
+namespace epics { namespace pvData {
 
-void PrinterPlain::endStructure(const PVStructure&) {ilvl--;}
-
-void PrinterPlain::beginStructureArray(const PVStructureArray& pv)
+void printRaw(std::ostream& strm, const PVStructure::Formatter& format, const PVStructure& cur)
 {
-    indentN(S(), ilvl);
-    S() << pv.getStructureArray()->getID() << " "
-        << pv.getFieldName() << "[] ";
-    ilvl++;
-}
+    typedef std::deque<std::pair<const PVField*, size_t> > todo_t;
+    todo_t todo;
+    BitSet show, highlight;
 
-void PrinterPlain::endStructureArray(const PVStructureArray&) {ilvl--;}
+    const long orig_indent = format::indent_value(strm);
 
-void PrinterPlain::beginUnion(const PVUnion& pv)
-{
-    indentN(S(), ilvl);
-    S() << pv.getUnion()->getID() << " " << pv.getFieldName() << std::endl;
-    ilvl++;
-}
+    {
+        if(format.xshow)
+            show = *format.xshow;
+        else
+            show.set(0);
 
-void PrinterPlain::endUnion(const PVUnion&) {ilvl--;}
+        if(format.xhighlight)
+            highlight = *format.xhighlight;
 
-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(',');
+        expandBS(format.xtop, show, true);
+        expandBS(format.xtop, highlight, false);
+        highlight &= show; // can't highlight hidden fields (paranoia)
     }
-    S() << "]" << std::endl;
+
+    if(!show.get(0)) return; // nothing to do here...
+
+    todo.push_front(std::make_pair(&format.xtop, orig_indent));
+
+    while(!todo.empty()) {
+        todo_t::value_type cur(todo.front());
+        todo.pop_front();
+
+        format::indent_value(strm) = cur.second;
+
+        bool hl = highlight.get(cur.first->getFieldOffset()) && format.xmode==PVStructure::Formatter::ANSI;
+        if(hl)
+            strm<<"\x1b[1m"; // Bold
+
+        switch(cur.first->getField()->getType()) {
+        case structure: {
+            const PVStructure* str = static_cast<const PVStructure*>(cur.first);
+
+            const PVFieldPtrArray& flds = str->getPVFields();
+
+            for(PVFieldPtrArray::const_reverse_iterator it(flds.rbegin()), end(flds.rend()); it!=end; ++it) {
+                const PVField *fld = (*it).get();
+                if(!show.get(fld->getFieldOffset())) continue;
+
+                todo.push_front(std::make_pair(fld, cur.second+1));
+            }
+
+            std::string id(cur.first->getField()->getID());
+
+            strm<<format::indent()<<id<<' '<<cur.first->getFieldName();
+            if(id=="alarm_t") {
+                strm.put(' ');
+                printAlarmTx(strm, *str);
+            } else if(id=="time_t") {
+                strm.put(' ');
+                printTimeTx(strm, *str);
+            } else if(id=="enum_t") {
+                strm.put(' ');
+                printEnumT(strm, *str, false);
+            }
+            strm.put('\n');
+        }
+            break;
+        case scalar:
+        case scalarArray:
+            strm<<format::indent()<<cur.first->getField()->getID()<<' '<<cur.first->getFieldName()
+                <<' '<<*cur.first
+                <<'\n';
+            break;
+        case structureArray:
+        case union_:
+        case unionArray:
+            strm<<*cur.first;
+            break;
+        }
+
+        if(hl)
+            strm<<"\x1b[0m"; // reset
+    }
+
+    format::indent_value(strm) = orig_indent;
 }
 
-void PrinterPlain::encodeNull()
+std::ostream& operator<<(std::ostream& strm, const PVStructure::Formatter& format)
 {
-    indentN(S(), ilvl);
-    S() << "NULL" << std::endl;
+    if(format.xfmt==PVStructure::Formatter::JSON) {
+#if EPICS_VERSION_INT>=VERSION_INT(3,15,0,1)
+        JSONPrintOptions opts;
+        opts.multiLine = false;
+        printJSON(strm, format.xtop, format.xshow ? *format.xshow : BitSet().set(0), opts);
+        strm<<'\n';
+        return strm;
+#else
+        // fall through to Raw
+#endif
+
+    } else if(format.xfmt==PVStructure::Formatter::NT) {
+        std::string id(format.xtop.getStructure()->getID()),
+                    idprefix(id.substr(0, id.find_first_of('.')));
+
+        // NTTable
+        if(idprefix=="epics:nt/NTTable:1") {
+            if(printTable(strm, format.xtop))
+                return strm;
+        } else {
+            //NTScalar, NTScalarArray, NTEnum, or anything with '.value'
+
+            PVField::const_shared_pointer value(format.xtop.getSubField("value"));
+            if(value) {
+                switch(value->getField()->getType()) {
+                case scalar:
+                    strm<<format::indent();
+                    printTimeT(strm, format.xtop);
+                    strm<<std::setprecision(6)<<*static_cast<const PVScalar*>(value.get())<<' ';
+                    printAlarmT(strm, format.xtop);
+                    strm<<'\n';
+                    return strm;
+
+                case scalarArray:
+                    strm<<format::indent();
+                    printTimeT(strm, format.xtop);
+                    printAlarmT(strm, format.xtop);
+                    strm<<std::setprecision(6)<<*static_cast<const PVScalarArray*>(value.get())<<'\n';
+                    return strm;
+
+                case structure:
+                    if(printEnumT(strm, format.xtop, true)) {
+                        strm<<'\n';
+                        return strm;
+                    }
+                    break;
+                default:
+                    break;
+                }
+            }
+        }
+    }
+    // fall through unhandled as Raw
+
+    PVStructure::Formatter format2(format);
+
+    if(format2.xmode==PVStructure::Formatter::Auto)
+        format2.xmode = useEscapes(strm) ? PVStructure::Formatter::ANSI : PVStructure::Formatter::Plain;
+
+    printRaw(strm, format2, format.xtop);
+
+    return strm;
 }
 
-}}
+static char hexdigit(char c) {
+    c &= 0xf;
+    if(c<9)
+        return '0'+c;
+    else
+        return 'A'+c-10;
+}
+
+escape::~escape() {}
+
+std::string escape::str() const
+{
+    std::ostringstream strm;
+    strm<<(*this);
+    return strm.str();
+}
+
+epicsShareFunc
+std::ostream& operator<<(std::ostream& strm, const escape& Q)
+{
+    for(size_t pos = 0, len = Q.orig.size(); pos < len; pos++) {
+        const char C = Q.orig[pos];
+        char quote = '\\', next;
+        // compare me with epicsStrnEscapedFromRaw()
+        switch(C) {
+        case '\a': next = 'a'; break;
+        case '\b': next = 'b'; break;
+        case '\f': next = 'f'; break;
+        case '\n': next = 'n'; break;
+        case '\r': next = 'r'; break;
+        case '\t': next = 't'; break;
+        case '\v': next = 'v'; break;
+        case '\\': next = '\\'; break;
+        case '\'': next = '\''; break;
+        case '\"': next = '\"'; if(Q.S==escape::CSV) quote = '"'; break;
+        default:
+            if(!isprint(C)) {
+                // print three charator escape
+                strm<<"\\x"<<hexdigit(C>>4)<<hexdigit(C);
+            } else {
+                // literal
+                strm.put(C);
+            }
+            continue;
+        }
+        // print two charactor escape
+        strm.put(quote);
+        strm.put(next);
+    }
+
+    return strm;
+}
+
+}} //epics::pvData

src/factory/pv/factory.h

@@ -0,0 +1,17 @@
+/*factory.h*/
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
+ */
+/**
+ *  @author mrk
+ */
+#ifndef FACTORY_H
+#define FACTORY_H
+
+namespace epics { namespace pvData {
+
+    enum DebugLevel{noDebug,lowDebug,highDebug};
+
+}}
+#endif /*FACTORY_H */

src/factory/pvSubArrayCopy.cpp

@@ -1,7 +1,6 @@
-/**
- * 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.
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
  */
 /**
  * @author Marty Kraimer

src/json/Makefile

@@ -0,0 +1,10 @@
+# This is a Makefile fragment, see ../Makefile
+
+SRC_DIRS += $(PVDATA_SRC)/json
+
+INC += pv/json.h
+
+LIBSRCS += parsehelper.cpp
+LIBSRCS += parseany.cpp
+LIBSRCS += parseinto.cpp
+LIBSRCS += print.cpp

src/json/parseany.cpp

@@ -0,0 +1,284 @@
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
+ */
+
+#include <sstream>
+
+#define epicsExportSharedSymbols
+#include <pv/pvdVersion.h>
+#include <pv/pvData.h>
+#include <pv/valueBuilder.h>
+
+#if EPICS_VERSION_INT>=VERSION_INT(3,15,0,1)
+
+#include "pv/json.h"
+
+namespace pvd = epics::pvData;
+using pvd::yajl::integer_arg;
+using pvd::yajl::size_arg;
+
+namespace {
+
+struct context {
+
+    unsigned depth;
+
+    enum state_t {
+        Undefined,
+        Key,
+        Array,
+    } state;
+
+    pvd::shared_vector<void> arr;
+
+    pvd::ValueBuilder root,
+                     *cur;
+
+    std::string msg,
+                key;
+
+    context() :depth(0u), state(Undefined), cur(&root) {}
+};
+
+#define TRY context *self = (context*)ctx; try
+
+#define CATCH() catch(std::exception& e) { self->msg = e.what(); return 0; }
+
+int jtree_null(void * ctx)
+{
+    TRY {
+        self->msg = "NULL value not permitted";
+        return 0;
+    }CATCH()
+}
+
+int jtree_boolean(void * ctx, int boolVal)
+{
+    TRY {
+        if(self->depth==0) throw std::runtime_error("Bare value not supported");
+        switch(self->state) {
+        case context::Key:
+            self->cur = &self->cur->add<pvd::pvBoolean>(self->key, boolVal);
+            self->key.clear();
+            self->state = context::Undefined;
+            break;
+        case context::Array:
+        {
+            if(self->arr.size()>0 && self->arr.original_type()!=pvd::pvBoolean)
+                throw std::runtime_error("Mixed type array not supported");
+            pvd::shared_vector<pvd::boolean> arr(pvd::static_shared_vector_cast<pvd::boolean>(self->arr));
+            arr.push_back(boolVal);
+            self->arr = pvd::static_shared_vector_cast<void>(arr);
+            break;
+        }
+        default:
+            throw std::logic_error("boolean in bad state");
+        }
+        return 1;
+    }CATCH()
+}
+
+int jtree_integer(void * ctx, integer_arg integerVal)
+{
+    TRY {
+        if(self->depth==0) throw std::runtime_error("Bare value not supported");
+        switch(self->state) {
+        case context::Key:
+            self->cur = &self->cur->add<pvd::pvLong>(self->key, integerVal);
+            self->key.clear();
+            self->state = context::Undefined;
+            break;
+        case context::Array:
+        {
+            if(self->arr.size()>0 && self->arr.original_type()!=pvd::pvLong)
+                throw std::runtime_error("Mixed type array not supported");
+            pvd::shared_vector<pvd::int64> arr(pvd::static_shared_vector_cast<pvd::int64>(self->arr));
+            arr.push_back(integerVal);
+            self->arr = pvd::static_shared_vector_cast<void>(arr);
+            break;
+        }
+        default:
+            throw std::logic_error("int64 in bad state");
+        }
+        return 1;
+    }CATCH()
+}
+
+int jtree_double(void * ctx, double doubleVal)
+{
+    TRY {
+        if(self->depth==0) throw std::runtime_error("Bare value not supported");
+        switch(self->state) {
+        case context::Key:
+            self->cur = &self->cur->add<pvd::pvDouble>(self->key, doubleVal);
+            self->key.clear();
+            self->state = context::Undefined;
+            break;
+        case context::Array:
+        {
+            if(self->arr.size()>0 && self->arr.original_type()!=pvd::pvDouble)
+                throw std::runtime_error("Mixed type array not supported");
+            pvd::shared_vector<double> arr(pvd::static_shared_vector_cast<double>(self->arr));
+            arr.push_back(doubleVal);
+            self->arr = pvd::static_shared_vector_cast<void>(arr);
+            break;
+        }
+        default:
+            throw std::logic_error("double in bad state");
+        }
+        return 1;
+    }CATCH()
+}
+
+int jtree_string(void * ctx, const unsigned char * stringVal,
+                    size_arg stringLen)
+{
+    TRY {
+        if(self->depth==0) throw std::runtime_error("Bare value not supported");
+        std::string sval((const char*)stringVal, stringLen);
+        switch(self->state) {
+        case context::Key:
+            self->cur = &self->cur->add<pvd::pvString>(self->key, sval);
+            self->key.clear();
+            self->state = context::Undefined;
+            break;
+        case context::Array:
+        {
+            if(self->arr.size()>0 && self->arr.original_type()!=pvd::pvString)
+                throw std::runtime_error("Mixed type array not supported");
+            pvd::shared_vector<std::string> arr(pvd::static_shared_vector_cast<std::string>(self->arr));
+            arr.push_back(sval);
+            self->arr = pvd::static_shared_vector_cast<void>(arr);
+            break;
+        }
+        default:
+            throw std::logic_error("double in bad state");
+        }
+        return 1;
+    }CATCH()
+}
+
+int jtree_start_map(void * ctx)
+{
+    TRY {
+        if(self->depth>0) {
+            if(self->key.empty())
+                throw std::logic_error("anonymous dict not top level?");
+            self->cur = &self->cur->addNested(self->key);
+            self->key.clear();
+        }
+        self->depth++;
+        return 1;
+    }CATCH()
+}
+
+int jtree_map_key(void * ctx, const unsigned char * key,
+                     size_arg stringLen)
+{
+    TRY {
+        if(!self->key.empty())
+            throw std::logic_error("double key?");
+        if(stringLen==0)
+            throw std::runtime_error("empty key not allowed");
+        self->key = std::string((const char*)key, stringLen);
+        self->state = context::Key;
+        return 1;
+    }CATCH()
+}
+
+int jtree_end_map(void * ctx)
+{
+    TRY {
+        if(self->depth>1)
+            self->cur = &self->cur->endNested();
+        else if(self->depth==0)
+            throw std::logic_error("Unbalenced dict");
+        self->depth--;
+        return 1;
+    }CATCH()
+}
+
+int jtree_start_array(void * ctx)
+{
+    TRY {
+        if(self->depth==0) throw std::runtime_error("Bare array not supported");
+        if(self->state!=context::Key)
+            throw std::logic_error("bare array not supported");
+        self->state = context::Array;
+        return 1;
+    }CATCH()
+}
+int jtree_end_array(void * ctx)
+{
+    TRY {
+        if(self->state!=context::Array)
+            throw std::logic_error("Bad array parse");
+        self->cur = &self->cur->add(self->key, pvd::freeze(self->arr));
+        self->key.clear();
+        self->state = context::Undefined;
+        return 1;
+    }CATCH()
+}
+
+
+yajl_callbacks jtree_cbs = {
+    &jtree_null,
+    &jtree_boolean,
+    &jtree_integer,
+    &jtree_double,
+    NULL, // number
+    &jtree_string,
+    &jtree_start_map,
+    &jtree_map_key,
+    &jtree_end_map,
+    &jtree_start_array,
+    &jtree_end_array,
+};
+
+struct handler {
+    yajl_handle handle;
+    handler(yajl_handle handle) :handle(handle)
+    {
+        if(!handle)
+            throw std::runtime_error("Failed to allocate yajl handle");
+    }
+    ~handler() {
+        yajl_free(handle);
+    }
+    operator yajl_handle() { return handle; }
+};
+
+} // namespace
+
+namespace epics{namespace pvData{
+
+epics::pvData::PVStructure::shared_pointer
+parseJSON(std::istream& strm)
+{
+#ifndef EPICS_YAJL_VERSION
+    yajl_parser_config conf;
+    memset(&conf, 0, sizeof(conf));
+    conf.allowComments = 1;
+    conf.checkUTF8 = 1;
+#endif
+
+    context ctxt;
+
+#ifndef EPICS_YAJL_VERSION
+    handler handle(yajl_alloc(&jtree_cbs, &conf, NULL, &ctxt));
+#else
+    handler handle(yajl_alloc(&jtree_cbs, NULL, &ctxt));
+
+    yajl_config(handle, yajl_allow_comments, 1);
+#endif
+
+    if(!yajl_parse_helper(strm, handle))
+        throw std::runtime_error(ctxt.msg);
+
+    return ctxt.cur->buildPVStructure();
+}
+
+}} // namespace epics::pvData
+
+#endif // EPICS_VERSION_INT

src/json/parsehelper.cpp

@@ -0,0 +1,122 @@
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
+ */
+
+#include <stdexcept>
+#include <sstream>
+
+#define epicsExportSharedSymbols
+#include <pv/pvdVersion.h>
+
+#if EPICS_VERSION_INT>=VERSION_INT(3,15,0,1)
+
+#include "pv/json.h"
+
+namespace {
+
+void check_trailing(const std::string& line)
+{
+    size_t idx = line.find_first_not_of(" \t\n\r");
+    if(idx==line.npos) return;
+    // TODO: detect the end of potentially multi-line comments...
+    // for now trailing comments not allowed
+    throw std::runtime_error("Trailing junk");
+}
+
+} // namespace
+
+namespace epics{namespace pvData{
+
+bool yajl_parse_helper(std::istream& src,
+                       yajl_handle handle)
+{
+    unsigned linenum=0;
+#ifndef EPICS_YAJL_VERSION
+    bool done = false;
+#endif
+
+    std::string line;
+    while(std::getline(src, line)) {
+        linenum++;
+
+#ifndef EPICS_YAJL_VERSION
+        if(done) {
+            check_trailing(line);
+            continue;
+        }
+#endif
+
+        yajl_status sts = yajl_parse(handle, (const unsigned char*)line.c_str(), line.size());
+
+        switch(sts) {
+        case yajl_status_ok: {
+            size_t consumed = yajl_get_bytes_consumed(handle);
+
+            if(consumed<line.size()) {
+                check_trailing(line.substr(consumed));
+            }
+
+#ifndef EPICS_YAJL_VERSION
+            done = true;
+#endif
+            break;
+        }
+        case yajl_status_client_canceled:
+            return false;
+#ifndef EPICS_YAJL_VERSION
+        case yajl_status_insufficient_data:
+            // continue with next line
+            break;
+#endif
+        case yajl_status_error:
+        {
+            std::ostringstream msg;
+            unsigned char *raw = yajl_get_error(handle, 1, (const unsigned char*)line.c_str(), line.size());
+            if(!raw) {
+                msg<<"Unknown error on line "<<linenum;
+            } else {
+                try {
+                    msg<<"Error on line "<<linenum<<" : "<<(const char*)raw;
+                }catch(...){
+                    yajl_free_error(handle, raw);
+                    throw;
+                }
+                yajl_free_error(handle, raw);
+            }
+            throw std::runtime_error(msg.str());
+        }
+        }
+    }
+
+    if(!src.eof() || src.bad()) {
+        std::ostringstream msg;
+        msg<<"I/O error after line "<<linenum;
+        throw std::runtime_error(msg.str());
+
+#ifndef EPICS_YAJL_VERSION
+    } else if(!done) {
+        switch(yajl_parse_complete(handle)) {
+#else
+    } else {
+        switch(yajl_complete_parse(handle)) {
+#endif
+        case yajl_status_ok:
+            break;
+        case yajl_status_client_canceled:
+            return false;
+#ifndef EPICS_YAJL_VERSION
+        case yajl_status_insufficient_data:
+            throw std::runtime_error("unexpected end of input");
+#endif
+        case yajl_status_error:
+            throw std::runtime_error("Error while completing parsing");
+        }
+    }
+
+    return true;
+}
+
+}} // namespace epics::pvData
+
+#endif // EPICS_VERSION_INT

src/json/parseinto.cpp

@@ -0,0 +1,352 @@
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
+ */
+
+#include <vector>
+#include <sstream>
+
+#define epicsExportSharedSymbols
+#include <pv/pvdVersion.h>
+#include <pv/pvData.h>
+#include <pv/valueBuilder.h>
+#include <pv/bitSet.h>
+
+#if EPICS_VERSION_INT>=VERSION_INT(3,15,0,1)
+
+#include "pv/json.h"
+
+namespace pvd = epics::pvData;
+using pvd::yajl::integer_arg;
+using pvd::yajl::size_arg;
+
+namespace {
+struct context {
+
+    std::string msg;
+
+    struct frame {
+        pvd::PVFieldPtr fld;
+        pvd::BitSet *assigned;
+        frame(const pvd::PVFieldPtr& fld, pvd::BitSet *assigned)
+            :fld(fld), assigned(assigned)
+        {}
+    };
+
+    typedef std::vector<frame> stack_t;
+    stack_t stack;
+
+    context(const pvd::PVFieldPtr& root, pvd::BitSet *assigned)
+    {
+        stack.push_back(frame(root, assigned));
+    }
+};
+
+#define TRY context *self = (context*)ctx; assert(!self->stack.empty()); try
+
+#define CATCH() catch(std::exception& e) { if(self->msg.empty()) self->msg = e.what(); return 0; }
+
+int jtree_null(void * ctx)
+{
+    TRY {
+        self->msg = "NULL value not permitted";
+        return 0;
+    }CATCH()
+}
+
+template<typename PVScalarT, typename PVArrayT>
+void valueAssign(context *self, typename PVScalarT::value_type val)
+{
+    assert(!self->stack.empty());
+    context::frame& back = self->stack.back();
+    pvd::Type type(back.fld->getField()->getType());
+    if(type==pvd::scalar) {
+        pvd::PVScalar* fld(static_cast<pvd::PVScalar*>(back.fld.get()));
+
+        fld->putFrom(val);
+        if(back.assigned)
+            back.assigned->set(fld->getFieldOffset());
+        self->stack.pop_back();
+        // structure at the top of the stack
+
+    } else if(type==pvd::scalarArray) {
+        pvd::PVScalarArray *fld(static_cast<pvd::PVScalarArray*>(back.fld.get()));
+
+        pvd::shared_vector<const void> carr;
+        fld->getAs(carr);
+
+        switch(carr.original_type())
+        {
+#define CASE_STRING
+#define CASE_REAL_INT64
+#define CASE(BASETYPE, PVATYPE, DBFTYPE, PVACODE) case epics::pvData::pv##PVACODE: { \
+            pvd::shared_vector<const PVATYPE> arr(pvd::static_shared_vector_cast<const PVATYPE>(carr)); \
+            pvd::shared_vector<PVATYPE> tarr(pvd::thaw(arr)); \
+            tarr.push_back(pvd::castUnsafe<PVATYPE>(val)); \
+            carr = pvd::static_shared_vector_cast<const void>(pvd::freeze(tarr)); \
+            } break;
+#include <pv/typemap.h>
+#undef CASE
+#undef CASE_REAL_INT64
+#undef CASE_STRING
+        }
+
+        fld->putFrom(carr);
+
+        // leave array field at top of stack
+
+    } else if(type==pvd::union_) {
+        pvd::PVUnion* fld(static_cast<pvd::PVUnion*>(back.fld.get()));
+        pvd::UnionConstPtr utype(fld->getUnion());
+
+        if(utype->isVariant()) {
+            typename PVScalarT::shared_pointer elem(pvd::getPVDataCreate()->createPVScalar<PVScalarT>());
+
+            elem->put(val);
+
+            fld->set(elem);
+
+        } else {
+            // attempt automagic assignment
+
+            const pvd::StringArray& names = utype->getFieldNames();
+            const pvd::FieldConstPtrArray types = utype->getFields();
+            assert(names.size()==types.size());
+
+            bool assigned = false;
+            for(size_t i=0, N=names.size(); i<N; i++) {
+                if(types[i]->getType()!=pvd::scalar) continue;
+
+                pvd::PVScalarPtr ufld(fld->select<pvd::PVScalar>(i));
+                try{
+                    ufld->putFrom(val);
+                    assigned = true;
+                }catch(std::runtime_error&){
+                    if(i==N-1)
+                        throw;
+                    continue;
+                }
+
+                break;
+            }
+            if(!assigned)
+                throw std::runtime_error("Unable to select union member");
+        }
+        if(back.assigned)
+            back.assigned->set(fld->getFieldOffset());
+        self->stack.pop_back();
+        // structure back at the top of the stack
+
+    } else {
+        throw std::invalid_argument("Can't assign value");
+    }
+}
+
+int jtree_boolean(void * ctx, int boolVal)
+{
+    TRY {
+        valueAssign<pvd::PVBoolean, pvd::PVBooleanArray>(self, !!boolVal);
+        return 1;
+    }CATCH()
+}
+
+int jtree_integer(void * ctx, integer_arg integerVal)
+{
+    TRY {
+        valueAssign<pvd::PVLong, pvd::PVLongArray>(self, integerVal);
+        return 1;
+    }CATCH()
+}
+
+int jtree_double(void * ctx, double doubleVal)
+{
+    TRY {
+        valueAssign<pvd::PVDouble, pvd::PVDoubleArray>(self, doubleVal);
+        return 1;
+    }CATCH()
+}
+
+int jtree_string(void * ctx, const unsigned char * stringVal,
+                    size_arg stringLen)
+{
+    TRY {
+        std::string val((const char*)stringVal, stringLen);
+        valueAssign<pvd::PVString, pvd::PVStringArray>(self, val);
+        return 1;
+    }CATCH()
+}
+
+int jtree_start_map(void * ctx)
+{
+    TRY {
+        assert(!self->stack.empty());
+
+        context::frame& back = self->stack.back();
+        pvd::Type type = back.fld->getField()->getType();
+        if(type==pvd::structure) {
+            // will fill in
+        } else if(type==pvd::structureArray) {
+            // starting new element in structure array
+            pvd::PVStructureArray* sarr(static_cast<pvd::PVStructureArray*>(back.fld.get()));
+
+            pvd::PVStructurePtr elem(pvd::getPVDataCreate()->createPVStructure(sarr->getStructureArray()->getStructure()));
+
+            self->stack.push_back(context::frame(elem, 0));
+        } else {
+            throw std::runtime_error("Can't map (sub)structure");
+        }
+
+        assert(self->stack.back().fld->getField()->getType()==pvd::structure);
+        return 1;
+    }CATCH()
+}
+
+int jtree_map_key(void * ctx, const unsigned char * key,
+                     size_arg stringLen)
+{
+    TRY {
+        assert(!self->stack.empty());
+        std::string name((const char*)key, stringLen);
+
+        // start_map() ensures we have a structure at the top of the stack
+        pvd::PVStructure *fld = static_cast<pvd::PVStructure*>(self->stack.back().fld.get());
+
+        try {
+            self->stack.push_back(context::frame(fld->getSubFieldT(name), self->stack.back().assigned));
+        }catch(std::runtime_error& e){
+            std::ostringstream strm;
+            strm<<"At "<<fld->getFullName()<<" : "<<e.what()<<"\n";
+            throw std::runtime_error(strm.str());
+        }
+
+        return 1;
+    }CATCH()
+}
+
+int jtree_end_map(void * ctx)
+{
+    TRY {
+        assert(!self->stack.empty());
+        assert(self->stack.back().fld->getField()->getType()==pvd::structure);
+
+        context::frame elem(self->stack.back());
+        self->stack.pop_back();
+
+        if(!self->stack.empty() && self->stack.back().fld->getField()->getType()==pvd::structureArray) {
+            // append element to struct array
+            pvd::PVStructureArray *sarr = static_cast<pvd::PVStructureArray*>(self->stack.back().fld.get());
+
+            pvd::PVStructureArray::const_svector cval;
+            sarr->swap(cval);
+
+            pvd::PVStructureArray::svector val(pvd::thaw(cval));
+
+            val.push_back(std::tr1::static_pointer_cast<pvd::PVStructure>(elem.fld));
+
+            sarr->replace(pvd::freeze(val));
+        }
+
+        return 1;
+    }CATCH()
+}
+
+int jtree_start_array(void * ctx)
+{
+    TRY {
+        assert(!self->stack.empty());
+        pvd::PVFieldPtr& back(self->stack.back().fld);
+        pvd::Type type = back->getField()->getType();
+        if(type!=pvd::structureArray && type!=pvd::scalarArray)
+            throw std::runtime_error("Can't assign array");
+
+        return 1;
+    }CATCH()
+}
+int jtree_end_array(void * ctx)
+{
+    TRY {
+        assert(!self->stack.empty());
+
+        if(self->stack.back().assigned)
+            self->stack.back().assigned->set(self->stack.back().fld->getFieldOffset());
+        self->stack.pop_back();
+        return 1;
+    }CATCH()
+}
+
+
+yajl_callbacks jtree_cbs = {
+    &jtree_null,
+    &jtree_boolean,
+    &jtree_integer,
+    &jtree_double,
+    NULL, // number
+    &jtree_string,
+    &jtree_start_map,
+    &jtree_map_key,
+    &jtree_end_map,
+    &jtree_start_array,
+    &jtree_end_array,
+};
+
+struct handler {
+    yajl_handle handle;
+    handler(yajl_handle handle) :handle(handle)
+    {
+        if(!handle)
+            throw std::runtime_error("Failed to allocate yajl handle");
+    }
+    ~handler() {
+        yajl_free(handle);
+    }
+    operator yajl_handle() { return handle; }
+};
+
+struct noop {
+    void operator()(pvd::PVField*) {}
+};
+
+} // namespace
+
+namespace epics{namespace pvData{
+
+epicsShareFunc
+void parseJSON(std::istream& strm,
+               PVField& dest,
+               BitSet *assigned)
+{
+#ifndef EPICS_YAJL_VERSION
+    yajl_parser_config conf;
+    memset(&conf, 0, sizeof(conf));
+    conf.allowComments = 1;
+    conf.checkUTF8 = 1;
+#endif
+
+    // we won't create refs to 'dest' which presist beyond this call.
+    // however, it is convienent to treat 'dest' in the same manner as
+    // any union/structureArray memebers it may contain.
+    PVFieldPtr fakedest(&dest, noop());
+
+    context ctxt(fakedest, assigned);
+
+#ifndef EPICS_YAJL_VERSION
+    handler handle(yajl_alloc(&jtree_cbs, &conf, NULL, &ctxt));
+#else
+    handler handle(yajl_alloc(&jtree_cbs, NULL, &ctxt));
+
+    yajl_config(handle, yajl_allow_comments, 1);
+#endif
+
+
+    if(!yajl_parse_helper(strm, handle))
+        throw std::runtime_error(ctxt.msg);
+
+    if(!ctxt.stack.empty())
+        throw std::logic_error("field stack not empty");
+    assert(fakedest.use_count()==1);
+}
+
+}} // namespace epics::pvData
+
+#endif // EPICS_VERSION_INT
+

src/json/print.cpp

@@ -0,0 +1,236 @@
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
+ */
+
+#include <vector>
+#include <sstream>
+
+#define epicsExportSharedSymbols
+#include <pv/pvdVersion.h>
+#include <pv/pvData.h>
+#include <pv/valueBuilder.h>
+#include <pv/bitSet.h>
+
+#if EPICS_VERSION_INT>=VERSION_INT(3,15,0,1)
+
+#include "pv/json.h"
+
+namespace pvd = epics::pvData;
+
+namespace {
+
+struct args {
+    std::ostream& strm;
+    const pvd::JSONPrintOptions& opts;
+
+    unsigned indent;
+
+    args(std::ostream& strm,
+         const pvd::JSONPrintOptions& opts)
+        :strm(strm)
+        ,opts(opts)
+        ,indent(opts.indent)
+    {}
+
+    void doIntent() {
+        if(!opts.multiLine) return;
+        strm.put('\n');
+        unsigned i=indent;
+        while(i--) strm.put(' ');
+    }
+};
+
+void show_field(args& A, const pvd::PVField* fld, const pvd::BitSet *mask);
+
+void show_struct(args& A, const pvd::PVStructure* fld, const pvd::BitSet *mask)
+{
+    const pvd::StructureConstPtr& type = fld->getStructure();
+    const pvd::PVFieldPtrArray& children = fld->getPVFields();
+
+    const pvd::StringArray& names = type->getFieldNames();
+
+    A.strm.put('{');
+    A.indent++;
+
+    bool first = true;
+    for(size_t i=0, N=names.size(); i<N; i++)
+    {
+        if(mask && !mask->get(children[i]->getFieldOffset())) continue;
+
+        if(first)
+            first = false;
+        else
+            A.strm.put(',');
+        A.doIntent();
+        A.strm<<'\"'<<names[i]<<"\": ";
+        show_field(A, children[i].get(), mask);
+    }
+
+    A.indent--;
+    A.doIntent();
+    A.strm.put('}');
+}
+
+void show_field(args& A, const pvd::PVField* fld, const pvd::BitSet *mask)
+{
+    switch(fld->getField()->getType())
+    {
+    case pvd::scalar:
+    {
+        const pvd::PVScalar *scalar=static_cast<const pvd::PVScalar*>(fld);
+        if(scalar->getScalar()->getScalarType()==pvd::pvString) {
+            A.strm<<'\"'<<scalar->getAs<std::string>()<<'\"';
+        } else {
+            A.strm<<scalar->getAs<std::string>();
+        }
+    }
+        return;
+    case pvd::scalarArray:
+    {
+        const pvd::PVScalarArray *scalar=static_cast<const pvd::PVScalarArray*>(fld);
+        const bool isstring = scalar->getScalarArray()->getElementType()==pvd::pvString;
+
+        pvd::shared_vector<const void> arr;
+        scalar->getAs<void>(arr);
+
+        pvd::shared_vector<const std::string> sarr(pvd::shared_vector_convert<const std::string>(arr));
+
+        A.strm.put('[');
+        for(size_t i=0, N=sarr.size(); i<N; i++) {
+            if(i!=0)
+                A.strm.put(',');
+            if(isstring)
+                A.strm.put('\"');
+            A.strm<<sarr[i];
+            if(isstring)
+                A.strm.put('\"');
+        }
+        A.strm.put(']');
+    }
+        return;
+    case pvd::structure:
+        show_struct(A, static_cast<const pvd::PVStructure*>(fld), mask);
+        return;
+    case pvd::structureArray:
+    {
+        pvd::PVStructureArray::const_svector arr(static_cast<const pvd::PVStructureArray*>(fld)->view());
+        A.strm.put('[');
+        A.indent++;
+
+        for(size_t i=0, N=arr.size(); i<N; i++) {
+            if(i!=0)
+                A.strm.put(',');
+            A.doIntent();
+            if(arr[i])
+                show_struct(A, arr[i].get(), 0);
+            else
+                A.strm<<"NULL";
+        }
+
+        A.indent--;
+        A.doIntent();
+        A.strm.put(']');
+    }
+        return;
+    case pvd::union_:
+    {
+        const pvd::PVUnion *U=static_cast<const pvd::PVUnion*>(fld);
+        const pvd::PVField::const_shared_pointer& C(U->get());
+
+        if(!C) {
+            A.strm<<"null";
+        } else {
+            show_field(A, C.get(), 0);
+        }
+    }
+        return;
+    case pvd::unionArray: {
+        const pvd::PVUnionArray *U=static_cast<const pvd::PVUnionArray*>(fld);
+        pvd::PVUnionArray::const_svector arr(U->view());
+        A.strm.put('[');
+        A.indent++;
+
+        for(size_t i=0, N=arr.size(); i<N; i++) {
+            if(i!=0)
+                A.strm.put(',');
+            A.doIntent();
+            if(arr[i])
+                show_field(A, arr[i].get(), 0);
+            else
+                A.strm<<"NULL";
+        }
+
+        A.indent--;
+        A.doIntent();
+        A.strm.put(']');
+
+    }
+        return;
+    }
+    // should not be reached
+    if(A.opts.ignoreUnprintable)
+        A.strm<<"// unprintable field type";
+    else
+        throw std::runtime_error("Encountered unprintable field type");
+}
+
+void expandBS(const pvd::PVStructure& top, pvd::BitSet& mask, bool parents) {
+    if(mask.get(0)) { // special handling because getSubField(0) not allowed
+        // wildcard
+        for(size_t idx=1, N=top.getNumberFields(); idx<N; idx++) {
+            mask.set(idx);
+        }
+
+    } else {
+        for(pvd::int32 idx = mask.nextSetBit(0), N=top.getNumberFields(); idx>=0 && idx<N; idx=mask.nextSetBit(idx+1)) {
+            pvd::PVField::const_shared_pointer fld = top.getSubFieldT(idx);
+
+            // look forward and mark all children
+            for(size_t i=idx+1, N=fld->getNextFieldOffset(); i<N; i++)
+                mask.set(i);
+
+            if(parents) {
+                // look back and mark all parents
+                // we've already stepped past all parents so siblings will not be automatically marked
+                for(const pvd::PVStructure *parent = fld->getParent(); parent; parent = parent->getParent()) {
+                    mask.set(parent->getFieldOffset());
+                }
+            }
+        }
+    }
+}
+
+} // namespace
+
+namespace epics{namespace pvData{
+
+JSONPrintOptions::JSONPrintOptions()
+    :multiLine(true)
+    ,ignoreUnprintable(true)
+    ,indent(0)
+{}
+
+void printJSON(std::ostream& strm,
+               const PVStructure& val,
+               const BitSet& mask,
+               const JSONPrintOptions& opts)
+{
+    args A(strm, opts);
+    pvd::BitSet emask(mask);
+    expandBS(val, emask, true);
+    if(!emask.get(0)) return;
+    show_struct(A, &val, &emask);
+}
+
+void printJSON(std::ostream& strm,
+               const PVField& val,
+               const JSONPrintOptions& opts)
+{
+    args A(strm, opts);
+    show_field(A, &val, 0);
+}
+
+}} // namespace epics::pvData
+
+#endif // EPICS_VERSION_INT

src/json/pv/json.h

@@ -0,0 +1,154 @@
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
+ */
+#ifndef PV_JSON_H
+#define PV_JSON_H
+
+#include <istream>
+#include <ostream>
+#include <string>
+#include <map>
+
+#include <pv/pvdVersion.h>
+#include <pv/pvData.h>
+
+#if EPICS_VERSION_INT>=VERSION_INT(3,15,0,1)
+
+#ifdef epicsExportSharedSymbols
+#   define pvjson_epicsExportSharedSymbols
+#   undef epicsExportSharedSymbols
+#endif
+
+#include <yajl_parse.h>
+
+#ifdef pvjson_epicsExportSharedSymbols
+#   define epicsExportSharedSymbols
+#   include "shareLib.h"
+#endif
+
+#include <shareLib.h>
+
+namespace epics{namespace pvData{
+
+class BitSet;
+
+/** @defgroup pvjson JSON print/parse
+ *
+ * Printing PVField as JSON and parsing JSON into PVField.
+ *
+ * @{
+ */
+
+//! Options used during printing
+struct epicsShareClass JSONPrintOptions
+{
+    bool multiLine;        //!< include new lines
+    bool ignoreUnprintable;//!< ignore union/union array when encountered
+    unsigned indent;       //!< Initial indentation (# of spaces)
+    JSONPrintOptions();
+};
+
+/** Print PVStructure as JSON
+ *
+ * 'mask' selects those fields which will be printed.
+ * @version Overload added after 7.0.0
+ */
+epicsShareFunc
+void printJSON(std::ostream& strm,
+               const PVStructure& val,
+               const BitSet& mask,
+               const JSONPrintOptions& opts = JSONPrintOptions());
+
+/** Print PVField as JSON
+ * @version Overload added after 7.0.0
+ */
+epicsShareFunc
+void printJSON(std::ostream& strm,
+               const PVField& val,
+               const JSONPrintOptions& opts = JSONPrintOptions());
+
+// To be deprecated in favor of previous form
+FORCE_INLINE
+void printJSON(std::ostream& strm,
+               const PVField::const_shared_pointer& val,
+               const JSONPrintOptions& opts = JSONPrintOptions())
+{
+    printJSON(strm, *val, opts);
+}
+
+/** Parse JSON text into a PVStructure
+ *
+ * Restrictions:
+ *
+ * - Top level must be {}  dict/object
+ * - field values must be number, string, array, or dict/object
+ * - array values must be number or string
+ */
+epicsShareFunc
+PVStructure::shared_pointer parseJSON(std::istream& strm);
+
+/** Parse JSON and store into the provided PVStructure.
+ *
+ * Restrictions:
+ *
+ * - array of union not supported
+ * - Only scalar value assigned to union
+ *
+ * @param strm Read JSON text from stream
+ * @param dest Store in fields of this structure
+ * @param assigned Which fields of _dest_ were assigned. (Optional)
+ * @throws std::runtime_error on failure.  dest and assigned may be modified.
+ * @version Overload added after 7.0.0
+ */
+epicsShareFunc
+void parseJSON(std::istream& strm,
+               PVField& dest,
+               BitSet *assigned=0);
+
+// To be deprecated in favor of previous form
+FORCE_INLINE
+void parseJSON(std::istream& strm,
+               const PVField::shared_pointer& dest,
+               BitSet *assigned=0)
+{
+    parseJSON(strm, *dest, assigned);
+}
+
+
+/** Wrapper around yajl_parse()
+ *
+ * Parse entire input stream.
+ * Errors if extranious non-whitespace found after the point were parsing completes.
+ *
+ * @param src The stream from which input charactors are read
+ * @param handle A parser handle previously allocated with yajl_alloc().  Not free'd on success or failure.
+ *
+ * @returns true if parsing completes successfully.  false if parsing cancelled by callback.  throws other errors
+ *
+ * @note The form of this call depends on EPICS_YAJL_VERSION
+ */
+epicsShareFunc
+bool yajl_parse_helper(std::istream& src,
+                       yajl_handle handle);
+
+namespace yajl {
+// undef implies API version 0
+#ifndef EPICS_YAJL_VERSION
+typedef long integer_arg;
+typedef unsigned size_arg;
+#else
+typedef long long integer_arg;
+typedef size_t size_arg;
+#endif
+} // namespace epics::pvData::yajl
+
+/** @} */
+
+}} // namespace epics::pvData
+
+#else
+#  error JSON parser requires EPICS Base >= 3.15.0.1
+#endif // EPICS_VERSION_INT
+
+#endif // PV_JSON_H

src/misc/Makefile

@@ -2,43 +2,40 @@
 
 SRC_DIRS += $(PVDATA_SRC)/misc
 
-INC += noDefaultMethods.h
-INC += lock.h
-INC += requester.h
-INC += serialize.h
-INC += bitSet.h
-INC += byteBuffer.h
-INC += epicsException.h
-INC += serializeHelper.h
-INC += event.h
-INC += thread.h
-INC += executor.h
-INC += timeFunction.h
-INC += timer.h
-INC += queue.h
-INC += messageQueue.h
-INC += destroyable.h
-INC += status.h
-INC += sharedPtr.h
-INC += localStaticLock.h
-INC += typeCast.h
-INC += printer.h
-INC += sharedVector.h
-INC += templateMeta.h
-INC += current_function.h
+INC += pv/noDefaultMethods.h
+INC += pv/lock.h
+INC += pv/serialize.h
+INC += pv/bitSet.h
+INC += pv/byteBuffer.h
+INC += pv/epicsException.h
+INC += pv/serializeHelper.h
+INC += pv/event.h
+INC += pv/thread.h
+INC += pv/timer.h
+INC += pv/status.h
+INC += pv/sharedPtr.h
+INC += pv/debugPtr.h
+INC += pv/localStaticLock.h
+INC += pv/typeCast.h
+INC += pv/sharedVector.h
+INC += pv/templateMeta.h
+INC += pv/current_function.h
+INC += pv/pvUnitTest.h
+INC += pv/reftrack.h
+INC += pv/anyscalar.h
 
 LIBSRCS += byteBuffer.cpp
 LIBSRCS += bitSet.cpp
 LIBSRCS += epicsException.cpp
-LIBSRCS += requester.cpp
 LIBSRCS += serializeHelper.cpp
 LIBSRCS += event.cpp
-LIBSRCS += executor.cpp
-LIBSRCS += timeFunction.cpp
 LIBSRCS += timer.cpp
 LIBSRCS += status.cpp
-LIBSRCS += messageQueue.cpp
 LIBSRCS += localStaticLock.cpp
 LIBSRCS += typeCast.cpp
+LIBSRCS += thread.cpp
 LIBSRCS += parseToPOD.cpp
-
+LIBSRCS += pvUnitTest.cpp
+LIBSRCS += debugPtr.cpp
+LIBSRCS += reftrack.cpp
+LIBSRCS += anyscalar.cpp

src/misc/anyscalar.cpp

@@ -0,0 +1,161 @@
+
+#include <epicsAssert.h>
+
+#define epicsExportSharedSymbols
+#include <shareLib.h>
+
+#include "pv/anyscalar.h"
+
+namespace epics {namespace pvData {
+
+AnyScalar::AnyScalar(ScalarType type, const void *buf)
+{
+    if(type==pvString) {
+        new (_wrap.blob) std::string(*static_cast<const std::string*>(buf));
+
+    } else {
+        memcpy(_wrap.blob, buf, ScalarTypeFunc::elementSize(type));
+    }
+
+    _stype = type;
+}
+
+AnyScalar::AnyScalar(const AnyScalar& o)
+    :_stype(o._stype)
+{
+    if(o._stype==pvString) {
+        new (_wrap.blob) std::string(o._as<std::string>());
+    } else if(o._stype!=(ScalarType)-1) {
+        memcpy(_wrap.blob, o._wrap.blob, sizeof(_largest_blob));
+    }
+}
+
+#if __cplusplus>=201103L
+AnyScalar::AnyScalar(AnyScalar&& o)
+    :_stype(o._stype)
+{
+    typedef std::string string;
+    if(o._stype==pvString) {
+        new (_wrap.blob) std::string();
+        _as<std::string>() = std::move(o._as<std::string>());
+        o._as<string>().~string();
+    } else if(o._stype!=(ScalarType)-1) {
+        memcpy(_wrap.blob, o._wrap.blob, sizeof(_largest_blob));
+    }
+    o._stype = (ScalarType)-1;
+}
+#endif
+
+void AnyScalar::clear() {
+    if(_stype==pvString) {
+        typedef std::string string;
+        _as<string>().~string();
+    }
+    // other types need no cleanup
+    _stype = (ScalarType)-1;
+}
+
+void AnyScalar::swap(AnyScalar& o) {
+    typedef std::string string;
+    switch((int)_stype) {
+    case -1:
+        switch((int)o._stype) {
+        case -1:
+            // nil <-> nil
+            break;
+        case pvString:
+            // nil <-> string
+            new (_wrap.blob) std::string();
+            _as<std::string>().swap(o._as<std::string>());
+            o._as<std::string>().~string();
+            break;
+        default:
+            // nil <-> non-string
+            memcpy(_wrap.blob, o._wrap.blob, sizeof(_largest_blob));
+            break;
+        }
+        break;
+    case pvString:
+        switch((int)o._stype) {
+        case -1:
+            // string <-> nil
+            new (o._wrap.blob) std::string();
+            _as<std::string>().swap(o._as<std::string>());
+            _as<std::string>().~string();
+            break;
+        case pvString:
+            // string <-> string
+            _as<std::string>().swap(o._as<std::string>());
+            break;
+        default: {
+            // string <-> non-string
+            std::string temp;
+            temp.swap(_as<std::string>());
+
+            _as<std::string>().~string();
+
+            memcpy(_wrap.blob, o._wrap.blob, sizeof(_largest_blob));
+
+            new (o._wrap.blob) std::string();
+            temp.swap(o._as<std::string>());
+        }
+            break;
+        }
+        break;
+    default:
+        switch((int)o._stype) {
+        case -1:
+            // non-string <-> nil
+            memcpy(o._wrap.blob, _wrap.blob, sizeof(_largest_blob));
+            break;
+        case pvString: {
+            // non-string <-> string
+            std::string temp;
+            temp.swap(o._as<std::string>());
+
+            o._as<std::string>().~string();
+
+            memcpy(o._wrap.blob, _wrap.blob, sizeof(_largest_blob));
+
+            new (_wrap.blob) std::string();
+            temp.swap(_as<std::string>());
+        }
+            break;
+        default:
+            // non-string <-> non-string
+            _largest_blob temp;
+            memcpy(&temp, _wrap.blob, sizeof(_largest_blob));
+            memcpy(_wrap.blob, o._wrap.blob, sizeof(_largest_blob));
+            memcpy(o._wrap.blob, &temp, sizeof(_largest_blob));
+            // std::swap(o._wrap.blob, _wrap.blob); // gcc <=4.3 doesn't like this
+            break;
+        }
+        break;
+    }
+    std::swap(_stype, o._stype);
+}
+const void* AnyScalar::bufferUnsafe() const {
+    if(_stype==pvString) {
+        return as<std::string>().c_str();
+    } else {
+        return _wrap.blob;
+    }
+}
+
+std::ostream& operator<<(std::ostream& strm, const AnyScalar& v)
+{
+    switch(v.type()) {
+#define CASE(BASETYPE, PVATYPE, DBFTYPE, PVACODE) case pv ## PVACODE: strm<<v._as<PVATYPE>(); break;
+#define CASE_REAL_INT64
+#define CASE_STRING
+#include "pv/typemap.h"
+#undef CASE
+#undef CASE_REAL_INT64
+#undef CASE_STRING
+    default:
+        strm<<"(nil)"; break;
+    }
+    return strm;
+}
+
+}} // namespace epics::pvData

src/misc/bitSet.cpp

@@ -1,8 +1,7 @@
 /* bitSet.cpp */
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
  */
 /**
  *  @author mes
@@ -10,12 +9,38 @@
 #include <string.h>
 #include <stdio.h>
 #include <iostream>
+#include <stdexcept>
+#include <algorithm>
+
+#include <epicsMutex.h>
 
 #define epicsExportSharedSymbols
 #include <pv/lock.h>
 #include <pv/serializeHelper.h>
 #include <pv/bitSet.h>
 
+/*
+ * BitSets are packed into arrays of "words."  Currently a word is
+ * a long, which consists of 64 bits, requiring 6 address bits.
+ * The choice of word size is determined purely by performance concerns.
+ */
+#define ADDRESS_BITS_PER_WORD 6u
+#define BITS_PER_WORD  (1u << ADDRESS_BITS_PER_WORD)
+#define BYTES_PER_WORD sizeof(uint64)
+#define BIT_INDEX_MASK (BITS_PER_WORD - 1u)
+
+/** Used to shift left or right for a partial word mask */
+#define WORD_MASK ~((uint64)0)
+
+// index of work containing this bit
+#define WORD_INDEX(bitn) ((bitn)>>ADDRESS_BITS_PER_WORD)
+// bit offset within word
+#define WORD_OFFSET(bitn) ((bitn)&BIT_INDEX_MASK)
+
+// the words vector should be size()d as small as posible,
+// so the last word should always have a bit set when the set is not empty
+#define CHECK_POST() assert(words.empty() || words.back()!=0)
+
 namespace epics { namespace pvData {
  
     BitSet::shared_pointer BitSet::create(uint32 nbits)
@@ -23,90 +48,76 @@ namespace epics { namespace pvData {
         return BitSet::shared_pointer(new BitSet(nbits));
     }
     
-    BitSet::BitSet() : words(0), wordsLength(0), wordsInUse(0) {
-        initWords(BITS_PER_WORD);
+    BitSet::BitSet() {}
 
+    BitSet::BitSet(uint32 nbits)
+    {
+        words.reserve((nbits == 0) ? 1 : WORD_INDEX(nbits-1) + 1);
     }
 
-    BitSet::BitSet(uint32 nbits) : words(0), wordsLength(0), wordsInUse(0) {
-        initWords(nbits);
+#if __cplusplus>=201103L
+    BitSet::BitSet(std::initializer_list<uint32> I)
+    {
+        // optimistically guess that highest bit is last (not required)
+        words.reserve((I.size() == 0) ? 1 : WORD_INDEX(*(I.end()-1)) + 1);
 
+        for(uint32 idx : I)
+        {
+            set(idx);
+        }
     }
+#endif
 
-    BitSet::~BitSet() {
-        delete[] words;
-    }
-
-    void BitSet::initWords(uint32 nbits) {
-        uint32 length = (nbits <= 0) ? 1 : wordIndex(nbits-1) + 1;
-        if (words) delete[] words;
-        words = new uint64[length];
-        memset(words, 0, sizeof(uint64)*length);
-        wordsLength = length;
-    }
+    BitSet::~BitSet() {}
 
     void BitSet::recalculateWordsInUse() {
-        // wordsInUse is unsigned
-        if (wordsInUse == 0)
-            return;
-
-        // Traverse the bitset until a used word is found
-        int32 i;
-        for (i = (int32)wordsInUse-1; i >= 0; i--)
-            if (words[i] != 0)
+        // step back from the end to find the first non-zero element
+        size_t nsize = words.size();
+        for(; nsize; nsize--) {
+            if(words[nsize-1])
                 break;
-
-        wordsInUse = i+1; // The new logical size
+        }
+        words.resize(nsize);
+        CHECK_POST();
     }
 
     void BitSet::ensureCapacity(uint32 wordsRequired) {
-        if (wordsLength < wordsRequired) {
-
-            // create and copy
-            uint64* newwords = new uint64[wordsRequired];
-            memset(newwords, 0, sizeof(uint64)*wordsRequired);
-            memcpy(newwords, words, sizeof(uint64)*wordsLength);
-            if (words) delete[] words;
-            words = newwords;
-            wordsLength = wordsRequired;
-        }
+        words.resize(std::max(words.size(), (size_t)wordsRequired), 0);
     }
 
     void BitSet::expandTo(uint32 wordIndex) {
-        uint32 wordsRequired = wordIndex+1;
-        if (wordsInUse < wordsRequired) {
-            ensureCapacity(wordsRequired);
-            wordsInUse = wordsRequired;
+        ensureCapacity(wordIndex+1);
+    }
+
+    BitSet& BitSet::flip(uint32 bitIndex) {
+
+        uint32 wordIdx = WORD_INDEX(bitIndex);
+        expandTo(wordIdx);
+
+        words[wordIdx] ^= (((uint64)1) << WORD_OFFSET(bitIndex));
+
+        recalculateWordsInUse();
+        return *this;
+    }
+
+    BitSet& BitSet::set(uint32 bitIndex) {
+
+        uint32 wordIdx = WORD_INDEX(bitIndex);
+        expandTo(wordIdx);
+
+        words[wordIdx] |= (((uint64)1) << WORD_OFFSET(bitIndex));
+        return *this;
+    }
+
+    BitSet& BitSet::clear(uint32 bitIndex) {
+
+        uint32 wordIdx = WORD_INDEX(bitIndex);
+        if (wordIdx < words.size()) {
+            words[wordIdx] &= ~(((uint64)1) << WORD_OFFSET(bitIndex));
+
+            recalculateWordsInUse();
         }
-    }
-
-    void BitSet::flip(uint32 bitIndex) {
-
-        uint32 wordIdx = wordIndex(bitIndex);
-        expandTo(wordIdx);
-
-        words[wordIdx] ^= (((uint64)1) << (bitIndex % BITS_PER_WORD));
-
-        recalculateWordsInUse();
-    }
-
-    void BitSet::set(uint32 bitIndex) {
-
-        uint32 wordIdx = wordIndex(bitIndex);
-        expandTo(wordIdx);
-
-        words[wordIdx] |= (((uint64)1) << (bitIndex % BITS_PER_WORD));
-    }
-
-    void BitSet::clear(uint32 bitIndex) {
-
-        uint32 wordIdx = wordIndex(bitIndex);
-        if (wordIdx >= wordsInUse)
-            return;
-
-        words[wordIdx] &= ~(((uint64)1) << (bitIndex % BITS_PER_WORD));
-
-        recalculateWordsInUse();
+        return *this;
     }
 
     void BitSet::set(uint32 bitIndex, bool value) {
@@ -117,14 +128,13 @@ namespace epics { namespace pvData {
     }
 
     bool BitSet::get(uint32 bitIndex) const {
-        uint32 wordIdx = wordIndex(bitIndex);
-        return ((wordIdx < wordsInUse)
-            && ((words[wordIdx] & (((uint64)1) << (bitIndex % BITS_PER_WORD))) != 0));
+        uint32 wordIdx = WORD_INDEX(bitIndex);
+        return ((wordIdx < words.size())
+            && ((words[wordIdx] & (((uint64)1) << WORD_OFFSET(bitIndex))) != 0));
     }
 
     void BitSet::clear() {
-        while (wordsInUse > 0)
-            words[--wordsInUse] = 0;
+        words.clear();
     }
 
     uint32 BitSet::numberOfTrailingZeros(uint64 i) {
@@ -153,8 +163,8 @@ namespace epics { namespace pvData {
 
     int32 BitSet::nextSetBit(uint32 fromIndex) const {
 
-        uint32 u = wordIndex(fromIndex);
-        if (u >= wordsInUse)
+        uint32 u = WORD_INDEX(fromIndex);
+        if (u >= words.size())
             return -1;
 
         uint64 word = words[u] & (WORD_MASK << (fromIndex % BITS_PER_WORD));
@@ -162,7 +172,7 @@ namespace epics { namespace pvData {
         while (true) {
             if (word != 0)
                 return (u * BITS_PER_WORD) + numberOfTrailingZeros(word);
-            if (++u == wordsInUse)
+            if (++u == words.size())
                 return -1;
             word = words[u];
         }
@@ -171,8 +181,8 @@ namespace epics { namespace pvData {
     int32 BitSet::nextClearBit(uint32 fromIndex) const {
         // Neither spec nor implementation handle bitsets of maximal length.
 
-        uint32 u = wordIndex(fromIndex);
-        if (u >= wordsInUse)
+        uint32 u = WORD_INDEX(fromIndex);
+        if (u >= words.size())
             return fromIndex;
 
         uint64 word = ~words[u] & (WORD_MASK << (fromIndex % BITS_PER_WORD));
@@ -180,79 +190,77 @@ namespace epics { namespace pvData {
         while (true) {
             if (word != 0)
                 return (u * BITS_PER_WORD) + numberOfTrailingZeros(word);
-            if (++u == wordsInUse)
-                return wordsInUse * BITS_PER_WORD;
+            if (++u == words.size())
+                return words.size() * BITS_PER_WORD;
             word = ~words[u];
         }
     }
 
     bool BitSet::isEmpty() const {
-        return (wordsInUse == 0);
+        return words.empty();
     }
 
     uint32 BitSet::cardinality() const {
         uint32 sum = 0;
-        for (uint32 i = 0; i < wordsInUse; i++)
+        for (uint32 i = 0; i < words.size(); i++)
             sum += bitCount(words[i]);
         return sum;
     }
 
     uint32 BitSet::size() const {
-        return wordsLength * BITS_PER_WORD;
+        return words.size() * BITS_PER_WORD;
+    }
+
+    bool BitSet::logical_and(const BitSet& set) const
+    {
+        size_t nwords = std::min(words.size(), set.words.size());
+        for(size_t i=0; i<nwords; i++) {
+            if(words[i] & set.words[i])
+                return true;
+        }
+        return false;
+    }
+    bool BitSet::logical_or(const BitSet& set) const
+    {
+        return !words.empty() || !set.words.empty();
     }
 
     BitSet& BitSet::operator&=(const BitSet& set) {
         // Check for self-assignment!
         if (this == &set) return *this;
 
-        while (wordsInUse > set.wordsInUse)
-            words[--wordsInUse] = 0;
+        // the result length will be <= the shorter of the two inputs
+        words.resize(std::min(words.size(), set.words.size()), 0);
 
-        // Perform logical AND on words in common
-        for (uint32 i = 0; i < wordsInUse; i++)
+        for(size_t i=0, e=words.size(); i<e; i++)
             words[i] &= set.words[i];
 
         recalculateWordsInUse();
-
         return *this;
     }
 
     BitSet& BitSet::operator|=(const BitSet& set) {
         // Check for self-assignment!
         if (this == &set) return *this;
-        uint32 wordsInCommon = wordsInUse;
-        if(wordsInUse>set.wordsInUse) wordsInCommon = set.wordsInUse;
-        if (wordsInUse < set.wordsInUse) {
-            ensureCapacity(set.wordsInUse);
-            wordsInUse = set.wordsInUse;
-        }
-        // Perform logical OR on words in common
-        for (uint32 i =0; i < wordsInCommon; i++) {
+
+        // result length will be the same as the longer of the two inputs
+        words.resize(std::max(words.size(), set.words.size()), 0);
+
+        // since we expand w/ zeros, then iterate using the size of the other vector
+        for(size_t i=0, e=set.words.size(); i<e; i++)
             words[i] |= set.words[i];
-         }
-        // Copy any remaining words
-        for(uint32 i=wordsInCommon; i<set.wordsInUse; ++i) {
-            words[i] = set.words[i];
-        }
-        // recalculateWordsInUse() is not needed
+
+        CHECK_POST();
         return *this;
     }
 
     BitSet& BitSet::operator^=(const BitSet& set) {
-        uint32 wordsInCommon = wordsInUse;
-        if(wordsInUse>set.wordsInUse) wordsInCommon = set.wordsInUse;
-        if (wordsInUse < set.wordsInUse) {
-            ensureCapacity(set.wordsInUse);
-            wordsInUse = set.wordsInUse;
-        }
-        // Perform logical OR on words in common
-        for (uint32 i =0; i < wordsInCommon; i++) {
+        // result length will <= the longer of the two inputs
+        words.resize(std::max(words.size(), set.words.size()), 0);
+
+        for(size_t i=0, e=set.words.size(); i<e; i++)
             words[i] ^= set.words[i];
-         }
-        // Copy any remaining words
-        for(uint32 i=wordsInCommon; i<set.wordsInUse; ++i) {
-            words[i] = set.words[i];
-        }
+
         recalculateWordsInUse();
         return *this;
     }
@@ -260,32 +268,27 @@ namespace epics { namespace pvData {
 
     BitSet& BitSet::operator=(const BitSet &set) {
         // Check for self-assignment!
-        if (this == &set) return *this;
-
-        // we ensure that words array size is adequate (and not wordsInUse to ensure capacity to the future)
-        if (wordsLength < set.wordsLength)
-        {
-            if (words) delete[] words;
-            words = new uint64[set.wordsLength];
-            wordsLength = set.wordsLength;
+        if (this != &set) {
+            words = set.words;
         }
-        memcpy(words, set.words, sizeof(uint64)*set.wordsInUse);
-        wordsInUse = set.wordsInUse;
-
         return *this;
     }
 
-    void BitSet::or_and(const BitSet& set1, const BitSet& set2) {
-        uint32 inUse = (set1.wordsInUse < set2.wordsInUse) ? set1.wordsInUse : set2.wordsInUse;
+    void BitSet::swap(BitSet& set)
+    {
+        words.swap(set.words);
+    }
 
-        ensureCapacity(inUse);
-        wordsInUse = inUse;
+    void BitSet::or_and(const BitSet& set1, const BitSet& set2) {
+
+        const size_t andlen = std::min(set1.words.size(), set2.words.size());
+        words.resize(std::max(words.size(), andlen), 0);
 
         // Perform logical AND on words in common
-        for (uint32 i = 0; i < inUse; i++)
+        for (uint32 i = 0; i < andlen; i++)
             words[i] |= (set1.words[i] & set2.words[i]);
 
-        // recalculateWordsInUse()...
+        recalculateWordsInUse();
     }
 
     bool BitSet::operator==(const BitSet &set) const
@@ -293,11 +296,11 @@ namespace epics { namespace pvData {
         if (this == &set)
             return true;
 
-        if (wordsInUse != set.wordsInUse)
+        if (words.size() != set.words.size())
             return false;
 
         // Check words in use by both BitSets
-        for (uint32 i = 0; i < wordsInUse; i++)
+        for (uint32 i = 0; i < words.size(); i++)
             if (words[i] != set.words[i])
                 return false;
 
@@ -310,56 +313,55 @@ namespace epics { namespace pvData {
     }
 
     void BitSet::serialize(ByteBuffer* buffer, SerializableControl* flusher) const {
-    
-        uint32 n = wordsInUse;
+
+        uint32 n = words.size();
         if (n == 0) {
             SerializeHelper::writeSize(0, buffer, flusher);
             return;
         }
-        uint32 len = 8 * (n-1);
+        uint32 len = BYTES_PER_WORD * (n-1); // length excluding bits in the last word
+        // count non-zero bytes in the last word
         for (uint64 x = words[n - 1]; x != 0; x >>= 8)
             len++;
-    
+
         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 < words.size())
+            for (uint64 x = words[words.size() - 1]; x != 0; x >>= 8)
+                buffer->putByte((int8) (x & 0xff));
     }
-    
+
     void BitSet::deserialize(ByteBuffer* buffer, DeserializableControl* control) {
-    
+
         uint32 bytes = static_cast<uint32>(SerializeHelper::readSize(buffer, control));	// in bytes
-    
-        wordsInUse = (bytes + 7) / 8;
-        if (wordsInUse > wordsLength)
-        {
-            if (words) delete[] words;
-            words = new uint64[wordsInUse];
-            wordsLength = wordsInUse;
-        }
-        
+
+        size_t wordsInUse = (bytes + 7) / BYTES_PER_WORD;
+        words.resize(wordsInUse);
+
         if (wordsInUse == 0)
             return;
-    
+
         control->ensureData(bytes);
-    
+
         uint32 i = 0;
         uint32 longs = bytes / 8;
         while (i < longs)
             words[i++] = buffer->getLong();
-    
+
         for (uint32 j = i; j < wordsInUse; j++)
             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);
+
+        recalculateWordsInUse(); // Sender shouldn't add extra zero bytes, but don't fail it it does
     }
-    
+
     epicsShareExtern std::ostream& operator<<(std::ostream& o, const BitSet& b)
     {
         o << '{';

src/misc/byteBuffer.cpp

@@ -1,8 +1,10 @@
-/**
- * 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.
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
  */
 /**
  *  @author mse
  */
+
+#define epicsExportSharedSymbols
+#include <pv/byteBuffer.h>

src/misc/byteBuffer.h

@@ -1,934 +0,0 @@
-/* byteBuffer.h */
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
- */
-/**
- *  @author mse
- */
-#ifndef BYTEBUFFER_H
-#define BYTEBUFFER_H
-
-#include <string>
-#include <string.h>
-
-#ifdef epicsExportSharedSymbols
-#define byteBufferepicsExportSharedSymbols
-#undef epicsExportSharedSymbols
-#endif
-
-#include <epicsEndian.h>
-
-#ifdef byteBufferepicsExportSharedSymbols
-#define epicsExportSharedSymbols
-#undef byteBufferepicsExportSharedSymbols
-#endif
-
-#include <pv/pvType.h>
-#include <pv/epicsException.h>
-
-#include <shareLib.h>
-
-namespace epics { 
-    namespace pvData {
-        
-/*
-TODO can be used:
-
-MS Visual C++:
-
-You include intrin.h and call the following functions:
-
-For 16 bit numbers:
-unsigned short _byteswap_ushort(unsigned short value);
-
-For 32 bit numbers:
-unsigned long _byteswap_ulong(unsigned long value);
-
-For 64 bit numbers:
-unsigned __int64 _byteswap_uint64(unsigned __int64 value);
-*/
-
-/*
-For floats and doubles it's more difficult as with plain integers as these may or not may be in the host machines byte-order.
-You can get little-endian floats on big-endian machines and vice versa.
-*/
-
-
-
-#define GCC_VERSION_SINCE(major, minor, patchlevel) \
-  (defined(__GNUC__) && !defined(__INTEL_COMPILER) && \
-   ((__GNUC__ > (major)) ||  \
-    (__GNUC__ == (major) && __GNUC_MINOR__ > (minor)) || \
-    (__GNUC__ == (major) && __GNUC_MINOR__ == (minor) && __GNUC_PATCHLEVEL__ >= (patchlevel))))
-    
- 
-#if GCC_VERSION_SINCE(4,3,0)
-
-#define swap32(x) __builtin_bswap32(x)
-#define swap64(x) __builtin_bswap64(x)
-
-#define __byte_swap16(x) \
-        (((x) >> 8) | \
-         ((x) << 8))
-
-static inline uint16_t
-swap16(uint16_t _x)
-{
-    return (__byte_swap16(_x));
-}
-
-#else
-
-
-#define __byte_swap16(x) \
-        (((x) >> 8) | \
-         ((x) << 8))
-
-#define __byte_swap32(x) \
-        ((((x) & 0xff000000) >> 24) | \
-         (((x) & 0x00ff0000) >>  8) | \
-         (((x) & 0x0000ff00) <<  8) | \
-         (((x) & 0x000000ff) << 24))
-
-#define __byte_swap64(x) \
-        (((x) >> 56) | \
-        (((x) >> 40) & 0xff00) | \
-        (((x) >> 24) & 0xff0000) | \
-        (((x) >> 8)  & 0xff000000) | \
-        (((x) << 8)  & ((uint64_t)0xff << 32)) | \
-        (((x) << 24) & ((uint64_t)0xff << 40)) | \
-        (((x) << 40) & ((uint64_t)0xff << 48)) | \
-        (((x) << 56)))
-   
-static inline uint16_t
-swap16(uint16_t _x)
-{
-    return (__byte_swap16(_x));
-}
-
-static inline uint32_t
-swap32(uint32_t _x)
-{
-    return (__byte_swap32(_x));
-}
-
-static inline uint64_t
-swap64(uint64_t _x)
-{
-    return (__byte_swap64(_x));
-}
-
-#endif
-
-
-template<typename T>
-inline T swap(T val) { return val; }  // not valid
-
-template<>
-inline int16 swap(int16 val)
-{
-    return swap16(val);
-}
-
-template<>
-inline int32 swap(int32 val)
-{
-    return swap32(val);
-}
-
-template<>
-inline int64 swap(int64 val)
-{
-    return swap64(val);
-}
-
-template<>
-inline float swap(float val)
-{
-    union {
-        int32 i;
-        float f;
-    } conv;
-    conv.f = val;
-    conv.i = swap32(conv.i);
-    return conv.f;
-}
-
-template<>
-inline double swap(double val)
-{
-    union {
-        int64 i;
-        double d;
-    } conv;
-    conv.d = val;
-    conv.i = swap64(conv.i);
-    return conv.d;
-}
-
-#define is_aligned(POINTER, BYTE_COUNT) \
-    (((std::ptrdiff_t)(const void *)(POINTER)) % (BYTE_COUNT) == 0)
-
-/*template <bool ENDIANESS_SUPPORT = false,
-          bool UNALIGNED_ACCESS = false,
-          bool ADAPTIVE_ACCESS = true,
-          bool USE_INLINE_MEMCPY = true>*/
-
-#define ENDIANESS_SUPPORT true
-#define UNALIGNED_ACCESS true
-#define ADAPTIVE_ACCESS true
-#define USE_INLINE_MEMCPY true
-
-#if defined (__GNUC__) && (__GNUC__ < 3)
-#define GET(T) get((T*)0)
-#else
-#define GET(T) get<T>()
-#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
- * external synchronization.
- *
- * Based on Java implementation.
- */
-class ByteBuffer 
-{
-public:
-    /**
-     * Constructor.
-     *
-     * @param  size      The number of bytes.
-     * @param  byteOrder The byte order.
-     * Must be one of EPICS_BYTE_ORDER,EPICS_ENDIAN_LITTLE,EPICS_ENDIAN_BIG.
-     */
-    ByteBuffer(std::size_t size, int byteOrder = EPICS_BYTE_ORDER) :
-        _buffer(0), _size(size),
-        _reverseEndianess(byteOrder != EPICS_BYTE_ORDER),
-        _reverseFloatEndianess(byteOrder != EPICS_FLOAT_WORD_ORDER),
-        _wrapped(false)
-    {
-        _buffer = (char*)malloc(size);
-        clear();
-    }
-
-    /**
-     * Constructor for wrapping existing buffers.
-     * Given buffer will not be released by the ByteBuffer instance.
-     * @param  buffer    Existing buffer.
-     * @param  size      The number of bytes.
-     * @param  byteOrder The byte order.
-     * Must be one of EPICS_BYTE_ORDER,EPICS_ENDIAN_LITTLE,EPICS_ENDIAN_BIG.
-     */
-    ByteBuffer(char* buffer, std::size_t size, int byteOrder = EPICS_BYTE_ORDER) :
-        _buffer(buffer), _size(size),
-        _reverseEndianess(byteOrder != EPICS_BYTE_ORDER),
-        _reverseFloatEndianess(byteOrder != EPICS_FLOAT_WORD_ORDER),
-        _wrapped(true)
-    {
-        clear();
-    }
-    /**
-     * Destructor
-     */
-    ~ByteBuffer()
-    {
-        if (_buffer && !_wrapped) free(_buffer);
-    }
-    /**
-     * Set the byte order.
-     *
-     * @param  byteOrder The byte order.
-     * Must be one of EPICS_BYTE_ORDER,EPICS_ENDIAN_LITTLE,EPICS_ENDIAN_BIG,
-     */
-    inline void setEndianess(int byteOrder)
-    {
-        _reverseEndianess = (byteOrder != EPICS_BYTE_ORDER);
-        _reverseFloatEndianess = (byteOrder != EPICS_FLOAT_WORD_ORDER);
-    }
-    /**
-     * Get the raw buffer data.
-     * @return the raw buffer data.
-     */
-    inline const char* getBuffer()
-    {
-        return _buffer;
-    }
-    /**
-     * Makes a buffer ready for a new sequence of channel-read or relative put operations:
-     * It sets the limit to the capacity and the position to zero.
-     */
-    inline void clear()
-    {
-        _position = _buffer;
-        _limit = _buffer + _size;
-    }
-    /**
-     * Makes a buffer ready for a new sequence of channel-write or relative get operations:
-     * It sets the limit to the current position and then sets the position to zero. 
-     */
-    inline void flip() {
-        _limit = _position;
-        _position = _buffer;
-    }
-    /**
-     * Makes a buffer ready for re-reading the data that it already contains:
-     * It leaves the limit unchanged and sets the position to zero.
-     */
-    inline void rewind() {
-        _position = _buffer;
-    }
-    /**
-     * Returns the current position.
-     * @return The current position in the raw data.
-     */
-    inline std::size_t getPosition()
-    {
-        return (std::size_t)(((std::ptrdiff_t)(const void *)_position) - ((std::ptrdiff_t)(const void *)_buffer));
-    }
-    /**
-     * Sets the buffer position.
-     * If the mark is defined and larger than the new position then it is discarded.
-     *
-     * @param  pos The offset into the raw buffer.
-     * The new position value; must be no larger than the current limit
-     */
-    inline void setPosition(std::size_t pos)
-    {
-        _position = _buffer + pos;
-    }
-    /**
-     * Returns this buffer's limit. 
-     *
-     * @return The offset into the raw buffer.
-     */
-    inline std::size_t getLimit()
-    {
-        return (std::size_t)(((std::ptrdiff_t)(const void *)_limit) - ((std::ptrdiff_t)(const void *)_buffer));
-    }
-    /**
-     * Sets this buffer's limit.
-     * If the position is larger than the new limit then it is set to the new limit.s
-     * If the mark is defined and larger than the new limit then it is discarded. 
-     *
-     * @param  limit The new position value;
-     * must be no larger than the current limit 
-     */
-    inline void setLimit(std::size_t limit)
-    {
-        _limit = _buffer + limit;
-    }
-    /**
-     * Returns the number of elements between the current position and the limit.
-     *
-     * @return The number of elements remaining in this buffer.
-     */
-    inline std::size_t getRemaining()
-    {
-        return (std::size_t)(((std::ptrdiff_t)(const void *)_limit) - ((std::ptrdiff_t)(const void *)_position));
-    }
-    /**
-     * Returns The size, i.e. capacity of the raw data buffer in bytes.
-     *
-     * @return The size of the raw data buffer.
-     */
-    inline std::size_t getSize()
-    {
-        return _size;
-    }
-    /**
-     * Put the value into the raw buffer as a byte stream in the current byte order.
-     *
-     * @param  value The value to be put into the byte buffer.
-     */
-    template<typename T>
-    inline void put(T value);
-    /**
-     * Put the value into the raw buffer at the specified index  as a byte stream in the current byte order.
-     *
-     * @param  index Offset in the byte buffer.
-     * @param  value The value to be put into the byte buffer.
-     */
-    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}.
-     * The position is adjusted based on the type.
-     *
-     * @return The object.
-     */
-#if defined (__GNUC__) && (__GNUC__ < 3)
-    template<typename T>
-    inline T get(const T*);
-#else
-    template<typename T>
-    inline T get();
-#endif
-    /**
-     * Get the new object from  the byte buffer at the specified index.
-     * The item MUST have type {@code T}.
-     * The position is adjusted based on the type.
-     *
-     * @param index The location in the byte buffer.
-     * @return The object.
-     */
-    template<typename T>
-    inline T get(std::size_t index);
-    /**
-     * 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,
-     */
-    inline void put(const char* src, std::size_t src_offset, std::size_t count) {
-        //if(count>getRemaining()) THROW_BASE_EXCEPTION("buffer overflow");
-        memcpy(_position, src + src_offset, count);
-        _position += count;
-    }
-    /**
-     * 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,
-     */
-    inline void get(char* dest, std::size_t dest_offset, std::size_t count) {
-        //if(count>getRemaining()) THROW_BASE_EXCEPTION("buffer overflow");
-        memcpy(dest + dest_offset, _position, count);
-        _position += count;
-    }
-    /**
-     * Put an array of type {@code T} into the byte buffer.
-     * The position is adjusted.
-     *
-     * @param  values The input array.
-     * @param  count  The number of elements.
-     */
-    template<typename T>
-    inline void putArray(const T* values, std::size_t count);
-    /**
-     * Get an array of type {@code T} from the byte buffer.
-     * The position is adjusted.
-     *
-     * @param  values The destination array.
-     * @param  count  The number of elements.
-     */
-    template<typename T>
-    inline void getArray(T* values, std::size_t count);
-    /**
-     * Is the byte order the EPICS_BYTE_ORDER
-     * @return (false,true) if (is, is not) the EPICS_BYTE_ORDER
-     */
-    template<typename T>
-    inline bool reverse()
-    {
-        return _reverseEndianess;
-    }
-    /**
-     * Adjust position so that it is aligned to the specified size.
-     * Size MUST be a power of 2.
-     * @param  size The alignment requirement.
-     */
-    inline void align(std::size_t size)
-    {
-        const std::size_t k = size - 1;
-        _position = (char*)((((std::ptrdiff_t)(const void *)_position) + k) & ~(k));
-    }
-    /**
-     * Put a boolean value into the byte buffer.
-     *
-     * @param  value The value.
-     */
-    inline void putBoolean(  bool value) { put<  int8>(value ? 1 : 0); }
-    /**
-     * Put a byte value into the byte buffer.
-     *
-     * @param  value The value.
-     */
-    inline void putByte   (  int8 value) { put<  int8>(value); }
-    /**
-     * Put a short value into the byte buffer.
-     *
-     * @param  value The value.
-     */
-    inline void putShort  ( int16 value) { put< int16>(value); }
-    /**
-     * Put an int value into the byte buffer.
-     *
-     * @param  value The value.
-     */
-    inline void putInt    ( int32 value) { put< int32>(value); }
-    /**
-     * Put a long value into the byte buffer.
-     *
-     * @param  value The value.
-     */
-    inline void putLong   ( int64 value) { put< int64>(value); }
-    /**
-     * Put a float value into the byte buffer.
-     *
-     * @param  value The value.
-     */
-    inline void putFloat  ( float value) { put< float>(value); }
-    /**
-     * Put a double value into the byte buffer.
-     *
-     * @param  value The value.
-     */
-    inline void putDouble (double value) { put<double>(value); }
-
-    /**
-     * Put a boolean value into the byte buffer at the specified index.
-     *
-     * @param  index The offset in the byte buffer,
-     * @param  value The value.
-     */
-    inline void putBoolean(std::size_t  index,  bool value) { put<  int8>(index, value); }
-    /**
-     * Put a byte value into the byte buffer at the specified index.
-     *
-     * @param  index The offset in the byte buffer,
-     * @param  value The value.
-     */
-    inline void putByte   (std::size_t  index,  int8 value) { put<  int8>(index, value); }
-    /**
-     * Put a short value into the byte buffer at the specified index.
-     *
-     * @param  index The offset in the byte buffer,
-     * @param  value The value.
-     */
-    inline void putShort  (std::size_t  index, int16 value) { put< int16>(index, value); }
-    /**
-     * Put an int value into the byte buffer at the specified index.
-     *
-     * @param  index The offset in the byte buffer,
-     * @param  value The value.
-     */
-    inline void putInt    (std::size_t  index, int32 value) { put< int32>(index, value); }
-    /**
-     * Put a long value into the byte buffer at the specified index.
-     *
-     * @param  index The offset in the byte buffer,
-     * @param  value The value.
-     */
-    inline void putLong   (std::size_t  index, int64 value) { put< int64>(index, value); }
-    /**
-     * Put a float value into the byte buffer at the specified index.
-     *
-     * @param  index The offset in the byte buffer,
-     * @param  value The value.
-     */
-    inline void putFloat  (std::size_t  index, float value) { put< float>(index, value); }
-    /**
-     * Put a double value into the byte buffer at the specified index.
-     *
-     * @param  index The offset in the byte buffer,
-     * @param  value The value.
-     */
-    inline void putDouble (std::size_t  index, double value) { put<double>(index, value); }
-    /**
-     * Get a boolean value from the byte buffer.
-     *
-     * @return The value.
-     */
-    inline   bool getBoolean() { return GET(  int8) != 0; }
-    /**
-     * Get a byte value from the byte buffer.
-     *
-     * @return The value.
-     */
-    inline   int8 getByte   () { return GET(  int8); }
-    /**
-     * Get a short value from the byte buffer.
-     *
-     * @return The value.
-     */
-    inline  int16 getShort  () { return GET( int16); }
-    /**
-     * Get a int value from the byte buffer.
-     *
-     * @return The value.
-     */
-    inline  int32 getInt    () { return GET( int32); }
-    /**
-     * Get a long value from the byte buffer.
-     *
-     * @return The value.
-     */
-    inline  int64 getLong   () { return GET( int64); }
-    /**
-     * Get a float value from the byte buffer.
-     *
-     * @return The value.
-     */
-    inline  float getFloat  () { return GET( float); }
-    /**
-     * Get a double value from the byte buffer.
-     *
-     * @return The value.
-     */
-    inline double getDouble () { return GET(double); }
-    /**
-     * Get a boolean value from the byte buffer at the specified index.
-     *
-     * @param  index The offset in the byte buffer.
-     * @return The value.
-     */
-    inline   bool getBoolean(std::size_t  index) { return get<  int8>(index) != 0; }
-    /**
-     * Get a byte value from the byte buffer at the specified index.
-     *
-     * @param  index The offset in the byte buffer.
-     * @return The value.
-     */
-    inline   int8 getByte   (std::size_t  index) { return get<  int8>(index); }
-    /**
-     * Get a short value from the byte buffer at the specified index.
-     *
-     * @param  index The offset in the byte buffer.
-     * @return The value.
-     */
-    inline  int16 getShort  (std::size_t  index) { return get< int16>(index); }
-    /**
-     * Get an int value from the byte buffer at the specified index.
-     *
-     * @param  index The offset in the byte buffer.
-     * @return The value.
-     */
-    inline  int32 getInt    (std::size_t  index) { return get< int32>(index); }
-    /**
-     * Get a long value from the byte buffer at the specified index.
-     *
-     * @param  index The offset in the byte buffer.
-     * @return The value.
-     */
-    inline  int64 getLong   (std::size_t  index) { return get< int64>(index); }
-    /**
-     * Get a float value from the byte buffer at the specified index.
-     *
-     * @param  index The offset in the byte buffer.
-     * @return The value.
-     */
-    inline  float getFloat  (std::size_t  index) { return get< float>(index); }
-    /**
-     * Get a boolean value from the byte buffer at the specified index.
-     *
-     * @param  double The offset in the byte buffer.
-     * @return The value.
-     */
-    inline double getDouble (std::size_t  index) { return get<double>(index); }
-
-    // TODO remove
-    inline const char* getArray()
-    {
-        return _buffer;
-    }
-
-    
-private:
-    char* _buffer;
-    char* _position;
-    char* _limit;
-    std::size_t  _size;
-    bool _reverseEndianess; 
-    bool _reverseFloatEndianess;
-    bool _wrapped;
-};
-
-    template<>
-    inline bool ByteBuffer::reverse<bool>()
-    {
-        return false;
-    }
-
-    template<>
-    inline bool ByteBuffer::reverse<int8>()
-    {
-        return false;
-    }
-
-    template<>
-    inline bool ByteBuffer::reverse<uint8>()
-    {
-        return false;
-    }
-
-    template<>
-    inline bool ByteBuffer::reverse<float>()
-    {
-        return _reverseFloatEndianess;
-    }
-
-    template<>
-    inline bool ByteBuffer::reverse<double>()
-    {
-        return _reverseFloatEndianess;
-    }
-
-    // the following methods must come after the specialized reverse<>() methods to make pre-gcc3 happy
-
-    template<typename T>
-    inline void ByteBuffer::put(T value)
-    {
-        // this avoids int8 specialization, compiler will take care if optimization, -O2 or more
-        if (sizeof(T) == 1)
-        {
-            *(_position++) = (int8)value;
-            return;
-        }
-
-        if (ENDIANESS_SUPPORT && reverse<T>())
-        {
-            value = swap<T>(value);
-        }
-
-        if (UNALIGNED_ACCESS)
-        {
-            // NOTE: some CPU handle unaligned access pretty good (e.g. x86)
-            *((T*)_position) = value;
-            _position += sizeof(T);
-        }
-        else
-        {
-            // NOTE: this check and branching does not always payoff
-            if (ADAPTIVE_ACCESS && is_aligned(_position, sizeof(T)))
-            {
-                *((T*)_position) = value;
-                _position += sizeof(T);
-            }
-            else
-            {
-                if (USE_INLINE_MEMCPY)
-                {
-                    // NOTE: it turns out that this compiler can optimize this with inline code, e.g. gcc
-                    memcpy(_position, &value, sizeof(T));
-                    _position += sizeof(T);
-                }
-                else
-                {
-                    // NOTE: compiler should optimize this and unroll the loop
-                    for (size_t i = 0; i < sizeof(T); i++)
-                        _position[i] = ((char*)&value)[i];
-                    _position += sizeof(T);
-                }
-            }
-        }
-
-    }
-
-    template<typename T>
-    inline void ByteBuffer::put(std::size_t index, T value)
-    {
-        // this avoids int8 specialization, compiler will take care if optimization, -O2 or more
-        if (sizeof(T) == 1)
-        {
-            *(_buffer + index) = (int8)value;
-            return;
-        }
-
-        if (ENDIANESS_SUPPORT && reverse<T>())
-        {
-            value = swap<T>(value);
-        }
-
-        if (UNALIGNED_ACCESS)
-        {
-            // NOTE: some CPU handle unaligned access preety good (e.g. x86)
-            *((T*)(_buffer + index)) = value;
-        }
-        else
-        {
-            // NOTE: this check and branching does not always payoff
-            if (ADAPTIVE_ACCESS && is_aligned(_position, sizeof(T)))
-            {
-                *((T*)(_buffer + index)) = value;
-            }
-            else
-            {
-                if (USE_INLINE_MEMCPY)
-                {
-                    // NOTE: it turns out that this compiler can optimize this with inline code, e.g. gcc
-                    memcpy(_buffer + index, &value, sizeof(T));
-                }
-                else
-                {
-                    // NOTE: compiler should optimize this and unroll the loop
-                    char *p = _buffer + index;
-                    for (size_t i = 0; i < sizeof(T); i++)
-                        p[i] = ((char*)&value)[i];
-                }
-            }
-        }
-
-    }
-
-#if defined (__GNUC__) && (__GNUC__ < 3)
-    template<typename T>
-    inline T ByteBuffer::get(const T*)
-#else
-    template<typename T>
-    inline T ByteBuffer::get()
-#endif
-    {
-        // this avoids int8 specialization, compiler will take care if optimization, -O2 or more
-        if (sizeof(T) == 1)
-        {
-            return (int8)(*(_position++));
-        }
-
-
-        T value;
-
-        if (UNALIGNED_ACCESS)
-        {
-            // NOTE: some CPU handle unaligned access preety good (e.g. x86)
-            value = *((T*)_position);
-            _position += sizeof(T);
-        }
-        else
-        {
-            // NOTE: this check and branching does not always payoff
-            if (ADAPTIVE_ACCESS && is_aligned(_position, sizeof(T)))
-            {
-                value = *((T*)_position);
-                _position += sizeof(T);
-            }
-            else
-            {
-                if (USE_INLINE_MEMCPY)
-                {
-                    // NOTE: it turns out that this compiler can optimize this with inline code, e.g. gcc
-                    memcpy(&value, _position, sizeof(T));
-                    _position += sizeof(T);
-                }
-                else
-                {
-                    // NOTE: compiler should optimize this and unroll the loop
-                    for (size_t i = 0; i < sizeof(T); i++)
-                        ((char*)&value)[i] = _position[i];
-                    _position += sizeof(T);
-                }
-            }
-        }
-
-        if (ENDIANESS_SUPPORT && reverse<T>())
-        {
-            value = swap<T>(value);
-        }
-
-        return value;
-    }
-
-    template<typename T>
-    inline T ByteBuffer::get(std::size_t index)
-    {
-        // this avoids int8 specialization, compiler will take care if optimization, -O2 or more
-        if (sizeof(T) == 1)
-        {
-            return (int8)(*(_buffer + index));
-        }
-
-
-        T value;
-
-        if (UNALIGNED_ACCESS)
-        {
-            // NOTE: some CPU handle unaligned access preety good (e.g. x86)
-            value = *((T*)(_buffer + index));
-        }
-        else
-        {
-            // NOTE: this check and branching does not always payoff
-            if (ADAPTIVE_ACCESS && is_aligned(_position, sizeof(T)))
-            {
-                value = *((T*)(_buffer + index));
-            }
-            else
-            {
-                if (USE_INLINE_MEMCPY)
-                {
-                    // NOTE: it turns out that this compiler can optimize this with inline code, e.g. gcc
-                    memcpy(&value, _buffer + index, sizeof(T));
-                }
-                else
-                {
-                    // NOTE: compiler should optimize this and unroll the loop
-                    char* p = _buffer + index;
-                    for (size_t i = 0; i < sizeof(T); i++)
-                        ((char*)&value)[i] = p[i];
-                }
-            }
-        }
-
-        if (ENDIANESS_SUPPORT && reverse<T>())
-        {
-            value = swap<T>(value);
-        }
-
-        return value;
-    }
-
-    template<typename T>
-    inline void ByteBuffer::putArray(const T* values, std::size_t count)
-    {
-        // this avoids int8 specialization, compiler will take care if optimization, -O2 or more
-        if (sizeof(T) == 1)
-        {
-            put((const char*)values, 0, count);
-            return;
-        }
-
-        T* start = (T*)_position;
-
-        size_t n = sizeof(T)*count;
-        // we require aligned arrays...
-        memcpy(_position, values, n);
-        _position += n;
-
-        // ... so that we can be fast changing endianess
-        if (ENDIANESS_SUPPORT && reverse<T>())
-        {
-            for (std::size_t i = 0; i < count; i++)
-            {
-                *start = swap<T>(*start);
-                start++;
-            }
-        }
-    }
-
-    template<typename T>
-    inline void ByteBuffer::getArray(T* values, std::size_t count)
-    {
-        // this avoids int8 specialization, compiler will take care if optimization, -O2 or more
-        if (sizeof(T) == 1)
-        {
-            get((char*)values, 0, count);
-            return;
-        }
-
-        T* start = (T*)values;
-
-        size_t n = sizeof(T)*count;
-        // we require aligned arrays...
-        memcpy(values, _position, n);
-        _position += n;
-
-        // ... so that we can be fast changing endianess
-        if (ENDIANESS_SUPPORT && reverse<T>())
-        {
-            for (std::size_t i = 0; i < count; i++)
-            {
-                *start = swap<T>(*start);
-                start++;
-            }
-        }
-    }
-
-    }
-}
-#endif  /* BYTEBUFFER_H */

src/misc/debugPtr.cpp

@@ -0,0 +1,165 @@
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
+ */
+
+#if __cplusplus>=201103L
+
+#include <epicsMutex.h>
+#include <epicsGuard.h>
+
+#define epicsExportSharedSymbols
+#include <pv/debugPtr.h>
+
+namespace {
+typedef epicsGuard<epicsMutex> Guard;
+}
+
+namespace epics {
+namespace debug {
+
+// joins together a group of ptr_base instances
+// which all have the same dtor
+struct tracker {
+    epicsMutex mutex;
+    ptr_base::ref_set_t refs;
+};
+
+void shared_ptr_base::track_new()
+{
+    if(track) {
+        Guard G(track->mutex);
+        track->refs.insert(this);
+    }
+    snap_stack();
+}
+
+// create new tracker if ptr!=nullptr, otherwise clear
+void shared_ptr_base::track_new(void* ptr)
+{
+    track_clear();
+    if(ptr){
+        track.reset(new tracker);
+        Guard G(track->mutex);
+        track->refs.insert(this);
+    }
+    snap_stack();
+}
+
+void shared_ptr_base::track_assign(const shared_ptr_base &o)
+{
+    if(track!=o.track) {
+        track_clear();
+        track = o.track;
+        if(track) {
+            Guard G(track->mutex);
+            track->refs.insert(this);
+        }
+        snap_stack();
+    }
+}
+
+void shared_ptr_base::track_clear()
+{
+    if(track) {
+        Guard G(track->mutex);
+        track->refs.erase(this);
+    }
+    track.reset();
+#ifndef EXCEPT_USE_NONE
+    m_depth = 0;
+#endif
+}
+
+void shared_ptr_base::swap(shared_ptr_base &o)
+{
+    // we cheat a bit here to avoid lock order, and to lock only twice
+    if(track) {
+        Guard G(track->mutex);
+        track->refs.insert(&o);
+        track->refs.erase(this);
+    }
+    track.swap(o.track);
+    if(track) {
+        Guard G(track->mutex);
+        track->refs.insert(this);
+        track->refs.erase(&o);
+    }
+    //TODO: keep original somehow???
+    snap_stack();
+    o.snap_stack();
+}
+
+void shared_ptr_base::snap_stack()
+{
+    if(!track) {
+#ifndef EXCEPT_USE_NONE
+        m_depth = 0;
+#endif
+        return;
+    }
+#if defined(EXCEPT_USE_BACKTRACE)
+    {
+        m_depth=backtrace(m_stack,EXCEPT_DEPTH);
+    }
+#else
+    {}
+#endif
+
+}
+
+void shared_ptr_base::show_stack(std::ostream& strm) const
+{
+    strm<<"ptr "<<this;
+#ifndef EXCEPT_USE_NONE
+    if(m_depth<=0) return;
+#endif
+#if 0 && defined(EXCEPT_USE_BACKTRACE)
+    {
+
+        char **symbols=backtrace_symbols(m_stack, m_depth);
+
+        strm<<": ";
+        for(int i=0; i<m_depth; i++) {
+            strm<<symbols[i]<<", ";
+        }
+
+        std::free(symbols);
+    }
+#elif !defined(EXCEPT_USE_NONE)
+    {
+        strm<<": ";
+        for(int i=0; i<m_depth; i++) {
+            strm<<std::hex<<m_stack[i]<<" ";
+        }
+    }
+#endif
+
+}
+
+void ptr_base::show_refs(std::ostream& strm, bool self, bool weak) const
+{
+    if(!track) {
+        strm<<"# No refs\n";
+    } else {
+        Guard G(track->mutex);
+        for(auto ref : track->refs) {
+            if(!self && ref==this) continue;
+            strm<<'#';
+            ref->show_stack(strm);
+            strm<<'\n';
+        }
+    }
+}
+
+void ptr_base::spy_refs(ref_set_t &refs) const
+{
+    if(track) {
+        Guard G(track->mutex);
+        refs.insert(track->refs.begin(), track->refs.end());
+    }
+}
+
+}} // namespace epics::debug
+
+#endif // __cplusplus>=201103L

src/misc/destroyable.h

@@ -1,40 +0,0 @@
-/* destroyable.h */
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
- */
-/**
- *  @author mse
- */
-#ifndef DESTROYABLE_H
-#define DESTROYABLE_H
-
-#include <pv/sharedPtr.h>
-
-#include <shareLib.h>
-
-namespace epics { namespace pvData { 
-
-
-        /**
-         * Instance declaring destroy method.
-         * @author mse
-         */
-        class epicsShareClass Destroyable {
-            public:
-            POINTER_DEFINITIONS(Destroyable);
-            /**
-             * Destroy this instance.
-             */
-            virtual void destroy() = 0;
-            
-            protected:
-            /**
-             * Do not allow delete on this instance and derived classes, destroy() must be used instead.
-             */ 
-            virtual ~Destroyable() {};
-        };
-
-}}
-#endif  /* DESTROYABLE_H */

src/misc/epicsException.cpp

@@ -1,7 +1,6 @@
-/**
- * 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.
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
  */
 /**
  *  @author mes
@@ -10,6 +9,7 @@
 #include <sstream>
 #include <cstdio>
 #include <cstring>
+#include <cstdlib>
 #include <string>
 
 #define epicsExportSharedSymbols
@@ -50,7 +50,7 @@ ExceptionMixin::show() const
             out<<symbols[i]<<"\n";
         }
 
-        free(symbols);
+        std::free(symbols);
     }
 
 #endif

src/misc/event.cpp

@@ -1,8 +1,7 @@
 /* event.cpp */
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
  */
 /**
  *  @author mrk
@@ -38,8 +37,7 @@ Event::~Event() {
 
 
 Event::Event(bool full)
-: id(epicsEventCreate(full?epicsEventFull : epicsEventEmpty)),
-  alreadyOn("already on list")
+: id(epicsEventCreate(full?epicsEventFull : epicsEventEmpty))
 {
 }
 

src/misc/event.h

@@ -1,53 +0,0 @@
-/* event.h */
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
- */
-/**
- *  @author mrk
- */
-#ifndef EVENT_H
-#define EVENT_H
-
-#include <memory>
-#include <vector>
-
-#ifdef epicsExportSharedSymbols
-#define eventepicsExportSharedSymbols
-#undef epicsExportSharedSymbols
-#endif
-
-#include <epicsEvent.h>
-
-#ifdef eventepicsExportSharedSymbols
-#define epicsExportSharedSymbols
-#undef eventepicsExportSharedSymbols
-#endif
-
-#include <pv/pvType.h>
-#include <pv/sharedPtr.h>
-
-#include <shareLib.h>
-
-namespace epics { namespace pvData { 
-
-class Event;
-typedef std::tr1::shared_ptr<Event> EventPtr;
-
-class epicsShareClass Event {
-public:
-    POINTER_DEFINITIONS(Event);
-    explicit Event(bool = false);
-    ~Event();
-    void signal();
-    bool wait (); /* blocks until full */
-    bool wait ( double timeOut ); /* false if empty at time out */
-    bool tryWait (); /* false if empty */
-private:
-    epicsEventId id;
-    std::string alreadyOn;
-};
-
-}}
-#endif  /* EVENT_H */

src/misc/executor.cpp

@@ -1,95 +0,0 @@
-/* executor.cpp */
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
- */
-/**
- *  @author mrk
- */
-#include <cstddef>
-#include <cstdlib>
-#include <cstddef>
-#include <string>
-#include <cstdio>
-
-#define epicsExportSharedSymbols
-#include <pv/executor.h>
-
-using std::string;
-
-namespace epics { namespace pvData {
-
-// special instance to stop the executor thread
-class ExecutorShutdown : public Command {
-    virtual void command();
-};
-
-void ExecutorShutdown::command()
-{
-}
-
-static
-std::tr1::shared_ptr<Command> shutdown(new ExecutorShutdown());
-
-
-Executor::Executor(string const & threadName,ThreadPriority priority)
-:  thread(threadName,priority,this)
-{
-} 
-
-Executor::~Executor()
-{
-    execute(shutdown);
-    stopped.wait();
-    // The thread signals 'stopped' while still holding
-    // the lock.  By taking it we wait for the run() function
-    // to actually return
-    Lock xx(mutex);
-    head.reset();
-    tail.reset();
-}
-
-void Executor::run()
-{
-    Lock xx(mutex);
-    while(true) {
-        while(!head.get()) {
-            xx.unlock();
-            moreWork.wait();
-            xx.lock();
-        }
-        CommandPtr command = head;
-        head = command->next;
-        if(!command.get()) continue;
-        if(command.get()==shutdown.get()) break;
-        xx.unlock();
-        try {
-            command->command();
-        }catch(std::exception& e){
-            //TODO: feed into logging mechanism
-            fprintf(stderr, "Executor: Unhandled exception: %s",e.what());
-        }catch(...){
-            fprintf(stderr, "Executor: Unhandled exception");
-        }
-
-        xx.lock();
-    }
-    stopped.signal();
-}
-
-void Executor::execute(CommandPtr const & command)
-{
-    Lock xx(mutex);
-    command->next.reset();
-    if(!head.get()) {
-        head = command;
-        moreWork.signal();
-        return;
-    }
-    CommandPtr tail = head;
-    while(tail->next) tail = tail->next;
-    tail->next = command;   
-}
-
-}}

src/misc/executor.h

@@ -1,57 +0,0 @@
-/* executor.h */
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
- */
-/**
- *  @author mrk
- */
-#ifndef EXECUTOR_H
-#define EXECUTOR_H
-
-#include <memory>
-
-#include <pv/pvType.h>
-#include <pv/lock.h>
-#include <pv/event.h>
-#include <pv/thread.h>
-#include <pv/sharedPtr.h>
-
-#include <shareLib.h>
-
-namespace epics { namespace pvData { 
-
-class Command;
-class Executor;
-typedef std::tr1::shared_ptr<Command> CommandPtr;
-typedef std::tr1::shared_ptr<Executor> ExecutorPtr;
-
-class epicsShareClass Command {
-public:
-    POINTER_DEFINITIONS(Command);
-    virtual ~Command(){}
-    virtual void command() = 0;
-private:
-    CommandPtr next;
-    friend class Executor;
-};
-
-class epicsShareClass Executor : public Runnable{
-public:
-    POINTER_DEFINITIONS(Executor);
-    Executor(std::string const & threadName,ThreadPriority priority);
-    ~Executor();
-    void execute(CommandPtr const &node);
-    virtual void run();
-private:
-    CommandPtr head;
-    CommandPtr tail;
-    epics::pvData::Mutex mutex;
-    epics::pvData::Event moreWork;
-    epics::pvData::Event stopped;
-    epics::pvData::Thread thread;
-};
-
-}}
-#endif  /* EXECUTOR_H */

src/misc/localStaticLock.cpp

@@ -1,8 +1,7 @@
 /* localStaticLock.cpp */
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
  */
 /**
  *  @author mse

src/misc/messageQueue.cpp

@@ -1,116 +0,0 @@
-/* messageQueue.cpp */
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
- */
-/**
- *  @author mrk
- */
-#include <string>
-
-#define epicsExportSharedSymbols
-#include <pv/messageQueue.h>
-
-using std::string;
-
-namespace epics { namespace pvData { 
-
-MessageNode::MessageNode()
-: messageType(infoMessage)
-{}
-
-string MessageNode::getMessage() const
-{
-    return message;
-}
-
-MessageType MessageNode::getMessageType() const
-{
-    return messageType;
-}
-
-MessageQueuePtr MessageQueue::create(int size)
-{
-    MessageNodePtrArray nodeArray;
-    nodeArray.reserve(size);
-    for(int i=0; i<size; i++) {
-        nodeArray.push_back(
-            MessageNodePtr(new MessageNode()));
-    }
-    return std::tr1::shared_ptr<MessageQueue>(new MessageQueue(nodeArray));
-}
-
-MessageQueue::MessageQueue(MessageNodePtrArray &data)
-: Queue<MessageNode>(data),
-  overrun(0)
-{ }
-
-MessageQueue::~MessageQueue()
-{
-}
-
-MessageNodePtr &MessageQueue::get() {
-    if(getNumberUsed()==0) return nullNode;
-    lastGet = getUsed();
-    return lastGet;
-}
-
-void MessageQueue::release() {
-    if(lastGet.get()==NULL) return;
-    releaseUsed(lastGet);
-    lastGet.reset();
-}
-bool MessageQueue::put(string message,MessageType messageType,bool replaceLast)
-{
-    MessageNodePtr node = getFree();
-    if(node.get()!= NULL) {
-        node->message = message;
-        node->messageType = messageType;
-        lastPut = node;
-        setUsed(node);
-        return true;
-    }
-    overrun++;
-    if(replaceLast) {
-        node = lastPut;
-        node->message = message;
-        node->messageType = messageType;
-        return true;
-    }
-    return false;
-}
-
-bool MessageQueue::isEmpty()
-{
-    int free = getNumberFree();
-    if(free==capacity()) return true;
-    return false;
-}
-
-bool MessageQueue::isFull()
-{
-    if(getNumberFree()==0) return true;
-    return false;
-}
-
-int MessageQueue::getClearOverrun()
-{
-    int num = overrun;
-    overrun = 0;
-    return num;
-}
-
-MessageQueuePtr createMessageQueue(int size)
-{
-    MessageNodePtrArray nodeArray;
-    nodeArray.reserve(size);
-    for(int i=0; i<size; i++) {
-        nodeArray.push_back(
-            MessageNodePtr(new MessageNode()));
-    }
-    return std::tr1::shared_ptr<MessageQueue>(new MessageQueue(nodeArray));
-}
-
-
-}}

src/misc/messageQueue.h

@@ -1,67 +0,0 @@
-/* messageQueue.h */
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
- */
-/**
- *  @author mrk
- */
-#ifndef MESSAGEQUEUE_H
-#define MESSAGEQUEUE_H
-#include <memory>
-#include <vector>
-#include <cstddef>
-#include <stdexcept>
-
-#include <pv/pvType.h>
-#include <pv/requester.h>
-#include <pv/queue.h>
-
-#include <shareLib.h>
-
-namespace epics { namespace pvData { 
-
-class MessageNode;
-class MessageQueue;
-typedef std::tr1::shared_ptr<MessageNode> MessageNodePtr;
-typedef std::vector<MessageNodePtr> MessageNodePtrArray;
-typedef std::tr1::shared_ptr<MessageQueue> MessageQueuePtr;
-
-class epicsShareClass MessageNode {
-public:
-    MessageNode();
-    std::string getMessage() const;
-    MessageType getMessageType() const;
-private:
-    std::string message;
-    MessageType messageType;
-    friend class MessageQueue;
-};
-
-class epicsShareClass MessageQueue : public Queue<MessageNode> {
-public:
-    POINTER_DEFINITIONS(MessageQueue);
-    static MessageQueuePtr create(int size);
-    MessageQueue(MessageNodePtrArray &nodeArray);
-    virtual ~MessageQueue();
-    MessageNodePtr &get();
-    // must call release before next get
-    void release();
-    // return (false,true) if message (was not, was) put into queue
-    bool put(std::string message,MessageType messageType,bool replaceLast);
-    bool isEmpty() ;
-    bool isFull() ;
-    int getClearOverrun();
-private:
-    MessageNodePtr nullNode;
-    MessageNodePtr lastGet;
-    MessageNodePtr lastPut;
-    uint32 overrun;
-};
-
-}}
-#endif  /* MESSAGEQUEUE_H */
-
-
-

src/misc/noDefaultMethods.h

@@ -1,33 +0,0 @@
-/* noDefaultMethods.h */
-/**
- * Copyright - See the COPYRIGHT that is included with this distribution.
- * EPICS pvData is distributed subject to a Software License Agreement found
- * in file LICENSE that is included with this distribution.
- */
-/**
- *  @author mrk
- */
-#ifndef NO_DEFAULT_METHODS_H
-#define NO_DEFAULT_METHODS_H
-
-#include <shareLib.h>
-
-namespace epics { namespace pvData { 
-/* This is based on Item 6 of 
- * Effective C++, Third Edition, Scott Meyers
- */
-
-
-    class epicsShareClass NoDefaultMethods {
-    protected:
-    // allow by derived objects
-    NoDefaultMethods(){};
-    ~NoDefaultMethods(){}
-    private:
-    // do not implment
-    NoDefaultMethods(const NoDefaultMethods&);
-    NoDefaultMethods & operator=(const NoDefaultMethods &);
-    };
-
-}}
-#endif  /* NO_DEFAULT_METHODS_H */

src/misc/parseToPOD.cpp

@@ -1,3 +1,7 @@
+/*
+ * Copyright information and license terms for this software can be
+ * found in the file LICENSE that is included with the distribution
+ */
 #include <ctype.h>
 #include <stdio.h>
 #include <errno.h>
@@ -12,7 +16,7 @@
 #include <epicsConvert.h>
 
 #define epicsExportSharedSymbols
-#include "typeCast.h"
+#include "pv/typeCast.h"
 
 using std::string;
 
@@ -27,7 +31,7 @@ using std::string;
 #endif
 
 #if EPICS_VERSION_INT < VERSION_INT(3,15,0,1)
-/* integer conversion primitives added to epicsStdlib.c in 3.15.0.1 */
+/* These integer conversion primitives added to epicsStdlib.c in 3.15.0.1 */
 
 #define S_stdlib_noConversion 1 /* No digits to convert */
 #define S_stdlib_extraneous   2 /* Extraneous characters */
@@ -249,18 +253,19 @@ epicsParseFloat(const char *str, float *to, char **units)
 }
 #endif
 
-// MS Visual Studio 2013 defines strtoll, etc.
-#if defined(_WIN32)
-#  if (_MSC_VER >= 1800)
-#    define WIN_NEEDS_OLL_FUNC 0
-#  else
-#    define WIN_NEEDS_OLL_FUNC 1
-#  endif
+// Sometimes we have to provide our own copy of strtoll()
+#if defined(_MSC_VER) && _MSC_VER < 1800
+// On Windows with MSVC, Base-3.15 provides strtoll()
+#    define NEED_OLL_FUNCS (EPICS_VERSION_INT < VERSION_INT(3,15,0,1))
+#elif defined(vxWorks)
+// On VxWorks, Base-3.15 provides strtoll()
+#    define NEED_OLL_FUNCS (EPICS_VERSION_INT < VERSION_INT(3,15,0,1))
 #else
-#  define WIN_NEEDS_OLL_FUNC 0
+// Other architectures all provide strtoll()
+#    define NEED_OLL_FUNCS 0
 #endif
 
-#if defined(NEED_LONGLONG) && (defined(__vxworks) || WIN_NEEDS_OLL_FUNC)
+#if defined(NEED_LONGLONG) && NEED_OLL_FUNCS
 static
 long long strtoll(const char *ptr, char ** endp, int base)
 {
@@ -308,8 +313,10 @@ noconvert:
     return 0;
 }
 
-#if defined(__vxworks)
-/* vxworks version of std::istringstream >>uint64_t is buggy, we use out own implementation */
+#if defined(vxWorks)
+/* The VxWorks version of std::istringstream >> uint64_t is buggy,
+ * provide our own implementation
+ */
 static
 unsigned long long strtoull(const char *nptr, char **endptr, int base)
 {
@@ -500,20 +507,20 @@ void handleParseError(int err)
 
 namespace epics { namespace pvData { namespace detail {
 
-void parseToPOD(const string & in, boolean *out)
+void parseToPOD(const char* in, boolean *out)
 {
-    if(epicsStrCaseCmp(in.c_str(),"true")==0)
+    if(epicsStrCaseCmp(in,"true")==0)
         *out = 1;
-    else if(epicsStrCaseCmp(in.c_str(),"false")==0)
+    else if(epicsStrCaseCmp(in,"false")==0)
         *out = 0;
     else
         throw std::runtime_error("parseToPOD: string no match true/false");
 }
 
 #define INTFN(T, S) \
-void parseToPOD(const string& in, T *out) { \
+void parseToPOD(const char* in, T *out) { \
     epics ## S temp; \
-    int err = epicsParse ## S (in.c_str(), &temp, 0, NULL); \
+    int err = epicsParse ## S (in, &temp, 0, NULL); \
     if(err)   handleParseError(err); \
     else      *out = temp; \
 }
@@ -525,38 +532,39 @@ INTFN(uint16_t, UInt16);
 INTFN(int32_t, Int32);
 INTFN(uint32_t, UInt32);
 
-void parseToPOD(const string& in, int64_t *out) {
+void parseToPOD(const char* in, int64_t *out) {
 #ifdef NEED_LONGLONG
-    int err = epicsParseLongLong(in.c_str(), out, 0, NULL);
+    int err = epicsParseLongLong(in, out, 0, NULL);
 #else
-    int err = epicsParseLong(in.c_str(), out, 0, NULL);
+    int err = epicsParseLong(in, out, 0, NULL);
 #endif
     if(err)   handleParseError(err);
 }
 
-void parseToPOD(const string& in, uint64_t *out) {
+void parseToPOD(const char* in, uint64_t *out) {
 #ifdef NEED_LONGLONG
-    int err = epicsParseULongLong(in.c_str(), out, 0, NULL);
+    int err = epicsParseULongLong(in, out, 0, NULL);
 #else
-    int err = epicsParseULong(in.c_str(), out, 0, NULL);
+    int err = epicsParseULong(in, out, 0, NULL);
 #endif
     if(err)   handleParseError(err);
 }
 
-void parseToPOD(const string& in, float *out) {
-    int err = epicsParseFloat(in.c_str(), out, NULL);
+void parseToPOD(const char* in, float *out) {
+    int err = epicsParseFloat(in, out, NULL);
     if(err)   handleParseError(err);
 }
 
-void parseToPOD(const string& in, double *out) {
-    int err = epicsParseDouble(in.c_str(), out, NULL);
+void parseToPOD(const char* in, double *out) {
+    int err = epicsParseDouble(in, out, NULL);
     if(err)   handleParseError(err);
-#if defined(__vxworks)
-    /* vxWorks strtod returns [-]epicsINF when it should return ERANGE error
-     * if [-]epicsINF is returned and first char is a digit then translate this into ERANGE error
+#if defined(vxWorks)
+    /* vxWorks strtod returns [-]epicsINF when it should return ERANGE error.
+     * If [-]epicsINF is returned and the first char is a digit we translate
+     * this into an ERANGE error
      */
     else if (*out == epicsINF || *out == -epicsINF) {
-        const char* s = in.c_str();
+        const char* s = in;
         int c;
 
         /* skip spaces and the sign */