Creating R3.14.12.3

Passing epicsExitCallAtExits into atexit() was generating
a warning about passing in a __stdcall routine pointer.

configure/CONFIG

@@ -1,17 +1,13 @@
 #*************************************************************************
-# Copyright (c) 2002 The University of Chicago, as Operator of Argonne
+# Copyright (c) 2013 UChicago Argonne LLC, as Operator of Argonne
 #     National Laboratory.
 # Copyright (c) 2002 The Regents of the University of California, as
 #     Operator of Los Alamos National Laboratory.
-# EPICS BASE Versions 3.13.7
-# and higher are distributed subject to a Software License Agreement found
-# in file LICENSE that is included with this distribution. 
+# EPICS BASE is distributed subject to a Software License Agreement found
+# in the file LICENSE that is included with this distribution.
 #*************************************************************************
 #
 #  $Revision-Id$
-#
-#  The developer may edit this file.
-# assume T_A is the host arch if not specified
 
 #
 #  Common build definitions
@@ -89,8 +85,6 @@ endif
 -include $(CONFIG)/os/CONFIG_SITE.Common.$(T_A)
 -include $(CONFIG)/os/CONFIG_SITE.$(EPICS_HOST_ARCH).$(T_A)
 
-endif
-
 # Include <top>/cfg/CONFIG* definitions from tops defined in RELEASE* files
 #
 ifneq ($(CONFIG),$(TOP)/configure)
@@ -103,12 +97,12 @@ endif
 
 # Include $(INSTALL_CFG)/CONFIG* definitions
 #
-ifndef T_A
 TOP_CFG_CONFIGS = $(wildcard $(INSTALL_CFG)/CONFIG*)
 ifneq ($(TOP_CFG_CONFIGS),)
 include $(TOP_CFG_CONFIGS)
 endif
-endif
+
+endif # ifdef T_A
 
 #  User specific definitions
 #
@@ -119,22 +113,3 @@ ifdef T_A
 -include $(HOME)/configure/CONFIG_USER.$(EPICS_HOST_ARCH).$(T_A)
 endif
 
-#  All options
-#   may be overridden here.
-#
-# EXAMPLES
-# --------
-#  Build client objects statically ?  must be either YES or NO
-#STATIC_BUILD=NO
-#  Host build optimization,   must be either YES or NO
-#HOST_OPT=YES
-#  Cross build optimization,  must be either YES or NO
-#CROSS_OPT=YES
-#  Generate Verbose Compiler Warnings for host build,  must be either YES or NO
-#HOST_WARN=YES
-#  Generate Verbose Compiler Warnings for cross compile builds,  must be either YES or NO
-#CROSS_WARN=YES
-#etc.
-
-#CROSS_COMPILER_TARGET_ARCHS=vxWorks-68040
-

configure/CONFIG_BASE

@@ -63,7 +63,8 @@ DBEXPAND                   = $(call PATH_FILTER, $(TOOLS)/dbExpand$(HOSTEXE))
 DBTORECORDTYPEH            = $(call PATH_FILTER, $(TOOLS)/dbToRecordtypeH$(HOSTEXE))
 DBTOMENUH                  = $(call PATH_FILTER, $(TOOLS)/dbToMenuH$(HOSTEXE))
 REGISTERRECORDDEVICEDRIVER = $(PERL) $(TOOLS)/registerRecordDeviceDriver.pl
-CONVERTRELEASE=$(PERL) $(TOOLS)/convertRelease.pl
+CONVERTRELEASE             = $(PERL) $(TOOLS)/convertRelease.pl
+FULLPATHNAME               = $(PERL) $(TOOLS)/fullPathName.pl
 
 #-------------------------------------------------------
 # tools for installing libraries and products

configure/CONFIG_BASE_VERSION

@@ -30,11 +30,11 @@ EPICS_MODIFICATION = 12
 
 # EPICS_PATCH_LEVEL must be a number  (win32 resource file requirement)
 # Not included if zero
-EPICS_PATCH_LEVEL = 3
+EPICS_PATCH_LEVEL = 4
 
 # This will end in -DEV between official releases
 #EPICS_DEV_SNAPSHOT=-DEV
-EPICS_DEV_SNAPSHOT=-pre1
+#EPICS_DEV_SNAPSHOT=-pre1
 #EPICS_DEV_SNAPSHOT=-pre1-DEV
 #EPICS_DEV_SNAPSHOT=-pre2
 #EPICS_DEV_SNAPSHOT=-pre2-DEV
@@ -42,7 +42,7 @@ EPICS_DEV_SNAPSHOT=-pre1
 #EPICS_DEV_SNAPSHOT=-rc1-DEV
 #EPICS_DEV_SNAPSHOT=-rc2
 #EPICS_DEV_SNAPSHOT=-rc2-DEV
-#EPICS_DEV_SNAPSHOT=
+EPICS_DEV_SNAPSHOT=
 
 # No changes should be needed below here
 

configure/CONFIG_COMMON

@@ -76,9 +76,12 @@ INSTALL_DB                  = $(INSTALL_LOCATION)/db
 INSTALL_CONFIG              = $(INSTALL_LOCATION)/configure
 INSTALL_JAVA                = $(INSTALL_LOCATION)/javalib
 
-#Directory for OS independant build created files
+# Directory for OS independant build created files
 COMMON_DIR = ../O.Common
 
+# IOC's absolute path to $(TOP), may be overridden inside the application
+IOCS_APPL_TOP               = $(shell $(FULLPATHNAME) $(INSTALL_LOCATION))
+
 #-------------------------------------------------------
 # Make echo output - suppress echoing if make's '-s' flag is set
 NOP = :
@@ -371,6 +374,7 @@ INSTALL_LIB_INSTALLS = $(addprefix $(INSTALL_LIB)/,$(notdir $(LIB_INSTALLS)))
 # Installed file permissions
 BIN_PERMISSIONS = 555
 LIB_PERMISSIONS = 444
+SHRLIB_PERMISSIONS = 555
 INSTALL_PERMISSIONS = 444
 
 #---------------------------------------------------------------

configure/CONFIG_FILE_TYPE

@@ -1,10 +1,10 @@
 #*************************************************************************
-# Copyright (c) 2006 UChicago Argonne LLC, as Operator of Argonne
+# Copyright (c) 2013 UChicago Argonne LLC, as Operator of Argonne
 #     National Laboratory.
 # Copyright (c) 2002 The Regents of the University of California, as
 #     Operator of Los Alamos National Laboratory.
 # EPICS BASE is distributed subject to a Software License Agreement found
-# in the file LICENSE that is included with this distribution. 
+# in the file LICENSE that is included with this distribution.
 #*************************************************************************
 # $Revision-Id$
 #
@@ -12,7 +12,7 @@
 #
 
 # --------------------------------------------------------------
-# Module developers can now define a new type of file, e.g. ABC, 
+# Module developers can now define a new type of file, e.g. ABC,
 # so that files of type ABC will be installed into a directory
 # defined by INSTALL_ABC. This is done by creating a new CONFIG<name>
 # file, e.g. CONFIG_ABC, with the following lines:
@@ -24,8 +24,14 @@
 # $(INSTALL_LOCATION). The file type ABC should be target
 # architecture independent (alh files, medm files, edm files).
 #
-# Optional rules necessary for files of type ABC should be put in
-# a RULES_ABC file.
+# Files of type ABC are then installed into the INSTALL_ABC
+# directory by adding a line like the following to a Makefile.
+#
+#       ABC += <filename1> <filename2> <filename3>
+#
+# Rules necessary to create files of type ABC should be put in
+# a RULES_ABC file. Variables used by those rules should appear
+# in a CONFIG_ABC file.
 #
 # The module developer installs new CONFIG* or RULES* files
 # into the directory $(INSTALL_LOCATION)/cfg by including the 
@@ -33,16 +39,11 @@
 #
 #       CFG += CONFIG_ABC RULES_ABC
 # 
-# Files of type ABC are installed into INSTALL_ABC directory
-# by adding a line like the following to a Makefile.
-#
-#       ABC += <filename1> <filename2> <filename3>
-#
-# Files in $(INSTALL_LOCATION)/cfg directory are now included by
-# the base config files so the definitions and rules are available
-# for use by later src directory Makefiles in the same module or
-# by other modules with a RELEASE line pointing to the TOP of 
-# the module with RULES_ABC.
+# CONFIG and RULES files in the $(INSTALL_LOCATION)/cfg directory
+# are included by the Base config files so their definitions and
+# rules are available for use by later src directory Makefiles in
+# the same module, or by other modules with a RELEASE line that
+# points to the TOP of the module providing these files.
 
 FILE_TYPE += ADL
 INSTALL_ADL = $(INSTALL_LOCATION)/adl
@@ -59,6 +60,6 @@ INSTALL_EDL = $(INSTALL_LOCATION)/edl
 FILE_TYPE += PERL_MODULES
 INSTALL_PERL_MODULES = $(INSTALL_LOCATION_LIB)/perl
 
-INSTALLS_CFG= $(CFG:%= $(INSTALL_CFG)/%)
+INSTALLS_CFG = $(CFG:%= $(INSTALL_CFG)/%)
 DIRECTORY_TARGETS += $(foreach type, $(FILE_TYPE),$(INSTALL_$(type)))
 

configure/CONFIG_SITE

@@ -19,6 +19,7 @@
 #	aix-ppc                (IBM compiler used for host builds)
 #	aix-ppc-gnu            (GNU compiler used for host builds)
 #	cygwin-x86             (cygwin compiler used for host builds)
+#	cygwin-x86_64          (cygwin compiler used for host builds)
 #	darwin-ppc             (PowerPC based Apple running OSX)
 #	darwin-ppcx86          (Universal binaries for both CPUs)
 #	darwin-x86             (Intel based Apple running OSX)
@@ -41,6 +42,7 @@
 #	win32-x86-cygwin       (WIN32 API with cygwin GNU compiler used for host builds)
 #	win32-x86-mingw        (MinGW compiler used for host builds)
 #	windows-x64            (MS Visual C++ compiler used for host builds)
+#	windows-x64-mingw      (MinGW compiler used for host builds)
 
 #  Debugging builds 
 #	linux-x86-debug        (GNU compiler with -g option for host builds)
@@ -72,6 +74,7 @@
 #       linux-cris              (Axis GNU crosscompiler on linux-x86 host)
 #       linux-cris_v10          (Axis GNU crosscompiler on linux-x86 host)
 #       linux-cris_v32          (Axis GNU crosscompiler on linux-x86 host)
+#       linux-microblaze
 #       linux-xscale_be
 #       vxWorks-486
 #       vxWorks-68040
@@ -119,9 +122,9 @@ CROSS_COMPILER_HOST_ARCHS=
 #     NOTE: os/CONFIG.$(EPICS_HOST_ARCH).$(EPICS_HOST_ARCH) files and
 #     os/CONFIG_SITE.$(EPICS_HOST_ARCH).$(EPICS_HOST_ARCH) files may override
 #
-#     NOTE WIN32: YES results in a DLL.  Valid settings are
-#                   SHARED_LIBRARIES=YES and STATIC_BUILD=NO
-#                   SHARED_LIBRARIES=NO  and STATIC_BUILD=YES
+#     NOTE Windows: YES results in a DLL.  Valid settings are
+#        SHARED_LIBRARIES=YES  and  STATIC_BUILD=NO
+#        SHARED_LIBRARIES=NO   and  STATIC_BUILD=YES
 #
 SHARED_LIBRARIES=YES
 

configure/RULES.Db

@@ -228,7 +228,7 @@ $(COMMON_DIR)/%Record.h: $(COMMON_DIR)/%Record.dbd
 $(COMMON_DIR)/%Record.h: %Record.dbd
 	@$(RM) $(notdir $@)$(DEP)
 	@$(DBDDEPENDS_CMD)
-	echo "$< : ../Makefile" >> $(notdir $@)$(DEP)
+	echo "$@ : ../Makefile" >> $(notdir $@)$(DEP)
 	@$(RM) $(notdir $@)
 	$(DBTORECORDTYPEH) $(DBDFLAGS) $< $(notdir $@)
 	@$(MV) $(notdir $@) $@
@@ -244,7 +244,7 @@ $(COMMON_DIR)/menu%.h: $(COMMON_DIR)/menu%.dbd
 $(COMMON_DIR)/menu%.h: menu%.dbd
 	@$(RM) $(notdir $@)$(DEP)
 	@$(DBDDEPENDS_CMD)
-	echo "$< : ../Makefile" >> $(notdir $@)$(DEP)
+	echo "$@ : ../Makefile" >> $(notdir $@)$(DEP)
 	@$(RM) $(notdir $@)
 	$(DBTOMENUH) $(DBDFLAGS) $< $(notdir $@)
 	@$(MV) $(notdir $@) $@
@@ -269,7 +269,7 @@ $(COMMON_DIR)/%.dbd: $(COMMON_DIR)/%Include.dbd
 $(COMMON_DIR)/%.dbd: %Include.dbd 
 	@$(RM) $(notdir $@)$(DEP)
 	@$(DBDDEPENDS_CMD)
-	echo "$< : ../Makefile" >> $(notdir $@)$(DEP)
+	echo "$@ : ../Makefile" >> $(notdir $@)$(DEP)
 	$(ECHO) "Expanding dbd"
 	@$(RM) $(notdir $@)
 	$(DBEXPAND) $(DBDFLAGS) -o $(notdir $@) $<
@@ -368,17 +368,14 @@ $(foreach file, $(DB_INSTALLS), $(eval $(call DB_INSTALLS_template, $(file))))
 
 ##################################################### register record,device,driver support
 
-IOC_INST_TOP := $(firstword $(IOCS_APPL_TOP) \
-        $(shell $(PERL) $(TOOLS)/fullPathName.pl $(INSTALL_LOCATION) ) )
-
 %_registerRecordDeviceDriver.cpp: $(COMMON_DIR)/%.dbd 
 	@$(RM) $@ $*.tmp
-	$(REGISTERRECORDDEVICEDRIVER) $< $(basename $@) $(IOC_INST_TOP) > $*.tmp
+	$(REGISTERRECORDDEVICEDRIVER) $< $(basename $@) $(IOCS_APPL_TOP) > $*.tmp
 	$(MV) $*.tmp $@
 
 %_registerRecordDeviceDriver.cpp: %.dbd 
 	@$(RM) $@ $*.tmp
-	$(REGISTERRECORDDEVICEDRIVER) $< $(basename $@) $(IOC_INST_TOP) > $*.tmp
+	$(REGISTERRECORDDEVICEDRIVER) $< $(basename $@) $(IOCS_APPL_TOP) > $*.tmp
 	$(MV) $*.tmp $@
 
 .PRECIOUS: %_registerRecordDeviceDriver.cpp

configure/RULES.ioc

@@ -1,13 +1,13 @@
 #*************************************************************************
-# Copyright (c) 2002 The University of Chicago, as Operator of Argonne
+# Copyright (c) 2013 UChicago Argonne LLC, as Operator of Argonne
 #     National Laboratory.
 # Copyright (c) 2002 The Regents of the University of California, as
 #     Operator of Los Alamos National Laboratory.
-# EPICS BASE Versions 3.13.7
-# and higher are distributed subject to a Software License Agreement found
-# in file LICENSE that is included with this distribution. 
+# EPICS BASE is distributed subject to a Software License Agreement found
+# in file LICENSE that is included with this distribution.
 #*************************************************************************
 #RULES.ioc
+
 include $(CONFIG)/RULES_DIRS
 
 build$(DIVIDER)$(ARCH) build: buildInstall
@@ -15,23 +15,18 @@ install$(DIVIDER)$(ARCH) install: buildInstall
 $(ARCH): buildInstall
 
 ifeq ($(filter $(ARCH),$(BUILD_ARCHS)),$(ARCH))
-buildInstall$(DIVIDER)$(ARCH) buildInstall: $(TARGETS)
+    buildInstall$(DIVIDER)$(ARCH) buildInstall: $(TARGETS)
 
-clean$(DIVIDER)$(ARCH) clean:
+    clean$(DIVIDER)$(ARCH) clean:
 	$(RM) cdCommands envPaths dllPath.bat
-
-else 
-buildInstall$(DIVIDER)$(ARCH) buildInstall:
-clean$(DIVIDER)$(ARCH) clean:
+else
+    buildInstall$(DIVIDER)$(ARCH) buildInstall:
+    clean$(DIVIDER)$(ARCH) clean:
 endif
 
 cdCommands envPaths dllPath.bat: $(wildcard $(TOP)/configure/RELEASE*) \
-	$(TOP)/configure/CONFIG $(INSTALL_BIN)
-ifeq ($(IOCS_APPL_TOP),)
-	$(PERL) $(TOOLS)/convertRelease.pl -a $(ARCH) $@
-else
-	$(PERL) $(TOOLS)/convertRelease.pl -a $(ARCH) -t $(IOCS_APPL_TOP) $@
-endif
+    $(wildcard $(TOP)/configure/CONFIG_SITE*) $(INSTALL_BIN)
+	$(CONVERTRELEASE) -a $(ARCH) -t $(IOCS_APPL_TOP) $@
 
 realclean:
 	$(RM) cdCommands envPaths dllPath.bat

configure/RULES_BUILD

@@ -383,7 +383,7 @@ $(INSTALL_LIB)/%.lib: %.lib
 
 $(INSTALL_SHRLIBS): $(INSTALL_SHRLIB)/%: %
 	$(ECHO) "Installing shared library $@"
-	@$(INSTALL_LIBRARY) -d -m $(LIB_PERMISSIONS) $< $(INSTALL_SHRLIB)
+	@$(INSTALL_LIBRARY) -d -m $(SHRLIB_PERMISSIONS) $< $(INSTALL_SHRLIB)
 ifneq ($(SHRLIB_SUFFIX),$(SHRLIB_SUFFIX_BASE))
 ifneq (,$(strip $(SHRLIB_VERSION)))
 	@$(RM) $(subst $(SHRLIB_SUFFIX),$(SHRLIB_SUFFIX_BASE),$@)

configure/RULES_FILE_TYPE

@@ -1,10 +1,10 @@
 #*************************************************************************
-# Copyright (c) 2006 UChicago Argonne LLC, as Operator of Argonne
+# Copyright (c) 2013 UChicago Argonne LLC, as Operator of Argonne
 #     National Laboratory.
 # Copyright (c) 2002 The Regents of the University of California, as
 #     Operator of Los Alamos National Laboratory.
 # EPICS BASE is distributed subject to a Software License Agreement found
-# in the file LICENSE that is included with this distribution. 
+# in the file LICENSE that is included with this distribution.
 #*************************************************************************
 # $Revision-Id$
 #
@@ -36,13 +36,11 @@ endif
 endif
 
 #---------------------------------------------
-# Include existing and new $(INSTALL_CFG)/* definitions
+# Include our own $(INSTALL_CFG)/RULES* definitions
 #
-TOP_CFG_FILES = $(sort $(wildcard $(INSTALL_CFG)/RULES*) \
-                       $(wildcard $(INSTALL_CFG)/CONFIG*) \
-                       $(addprefix $(INSTALL_CFG)/,$(CFG)))
-ifneq ($(TOP_CFG_FILES),)
-  include $(TOP_CFG_FILES)
+TOP_CFG_RULES = $(wildcard $(INSTALL_CFG)/RULES*)
+ifneq ($(TOP_CFG_RULES),)
+  include $(TOP_CFG_RULES)
 endif
 
 #---------------------------------------------------------------

configure/RULES_TOP

@@ -64,11 +64,11 @@ help:
 	@echo "     rebuild        - Same as clean install"
 	@echo "     archclean      - Removes O.<arch> dirs but not O.Common dir"
 	@echo "\"Partial\" build targets supported by Makefiles:"
-	@echo "     inc.<arch>     - Installs <arch> only header files."
-	@echo "     build.<arch>   - Builds and installs <arch> only."
-	@echo "     install.<arch> - Builds and installs <arch> only."
-	@echo "     clean.<arch>   - Cleans <arch> binaries in O.<arch> dirs only."
-	@echo "     uninstall.<arch> - Remove bin & lib directories for <arch> only."
+	@echo "     inc$(DIVIDER)<arch>     - Installs <arch> only header files."
+	@echo "     build$(DIVIDER)<arch>   - Builds and installs <arch> only."
+	@echo "     install$(DIVIDER)<arch> - Builds and installs <arch> only."
+	@echo "     clean$(DIVIDER)<arch>   - Cleans <arch> binaries in O.<arch> dirs only."
+	@echo "     uninstall$(DIVIDER)<arch> - Remove bin & lib directories for <arch> only."
 	@echo "Targets supported by top level Makefile:"
 	@echo "     archuninstall  - Remove bin & lib directories created by this hostarch."
 	@echo "     uninstall      - Remove install directories created by this hostarch."

configure/os/CONFIG.Common.UnixCommon

@@ -50,7 +50,7 @@ SHRLIB_LDLIBS = $(addprefix -l, $($*_LDLIBS) $(LIB_LIBS) $(USR_LIBS))\
  $(LDLIBS)
 
 SHRLIB_DEPLIB_DIRS = $(foreach word,$(sort $(dir $($*_DEPLIBS) $(SHRLIB_DEPLIBS))), \
-   $(shell $(PERL) $(TOOLS)/fullPathName.pl $(word)))
+   $(shell $(FULLPATHNAME) $(word)))
 
 SHRLIBDIR_LDFLAGS += $(SHRLIB_DEPLIB_DIRS:%=-L%)
 
@@ -73,7 +73,7 @@ PROD_LDLIBS += $($(firstword $(LDLIBS_STATIC_$(STATIC_BUILD)) \
                $(LDLIBS_SHARED_$(SHARED_LIBRARIES))))
 
 PROD_DEPLIB_DIRS = $(foreach word,$(sort $(dir $($*_DEPLIBS) $(PROD_DEPLIBS))), \
-  $(shell $(PERL) $(TOOLS)/fullPathName.pl $(word)))
+  $(shell $(FULLPATHNAME) $(word)))
 
 PRODDIR_LDFLAGS += $(PROD_DEPLIB_DIRS:%=-L%)
 

configure/os/CONFIG.Common.cygwin-x86

@@ -14,7 +14,7 @@ OS_CLASS = cygwin32
 ARCH_CLASS = x86
 
 #  Definitions used when COMMANDLINE_LIBRARY is READLINE
-LDLIBS_READLINE = -lreadline -lcurses
+LDLIBS_READLINE = -lreadline
 
 POSIX_CPPFLAGS = -D_POSIX_THREADS -D_POSIX_TIMERS
 #POSIX_CPPFLAGS += -D_POSIX_SOURCE

configure/os/CONFIG.Common.cygwin-x86_64

@@ -0,0 +1,14 @@
+# CONFIG.Common.cygwin-x86_64
+#
+# $Revision-Id$
+# This file is maintained by the build community.
+#
+# Definitions for cygwin-x86_64 target builds
+# Sites may override these definitions in CONFIG_SITE.Common.cygwin-x86_64
+#-------------------------------------------------------
+
+include $(CONFIG)/os/CONFIG.Common.cygwin-x86
+
+ARCH_DEP_CFLAGS = -m64
+ARCH_DEP_LDFLAGS = -m64
+

configure/os/CONFIG.Common.iosCommon

@@ -73,7 +73,7 @@ OP_SYS_LDFLAGS += -dynamic -Z -L$(SDK_DIR)/usr/lib -L$(SDK_DIR)/usr/lib/system
 # Shared libraries
 SHRLIB_VERSION = $(EPICS_VERSION).$(EPICS_REVISION).$(EPICS_MODIFICATION)
 SHRLIB_LDFLAGS = -dynamiclib -flat_namespace -undefined suppress \
-       -install_name $(shell $(PERL) $(TOOLS)/fullPathName.pl $(INSTALL_LIB))/$@ \
+       -install_name $(shell $(FULLPATHNAME) $(INSTALL_LIB))/$@ \
        -compatibility_version $(EPICS_VERSION).$(EPICS_REVISION) \
        -current_version $(SHRLIB_VERSION)
 SHRLIB_SUFFIX_BASE = .dylib

configure/os/CONFIG.Common.vxWorksCommon

@@ -93,6 +93,7 @@ VX_GNU_VERSION_6.5 = 3.4.4
 VX_GNU_VERSION_6.6 = 4.1.2
 VX_GNU_VERSION_6.7 = 4.1.2
 VX_GNU_VERSION_6.8 = 4.1.2
+VX_GNU_VERSION_6.9 = 4.3.3
 VX_GNU_VERSION = $(VX_GNU_VERSION_$(VXWORKS_VERSION))
 
 VX_GNU_MAJOR_VERSION = $(basename $(basename $(VX_GNU_VERSION)))
@@ -134,6 +135,7 @@ NM_DIR_6.5 = $(WORKBENCH_BIN)
 NM_DIR_6.6 = $(WORKBENCH_BIN)
 NM_DIR_6.7 = $(GNU_BIN)
 NM_DIR_6.8 = $(UTILITIES_BIN)
+NM_DIR_6.9 = $(UTILITIES_BIN)
 NM_DIR = $(firstword $(NM_DIR_$(VXWORKS_VERSION)) $(GNU_BIN))
 
 NM = $(NM_DIR)/$(CMPLR_PREFIX)nm$(CMPLR_SUFFIX)$(HOSTEXE)

configure/os/CONFIG.Common.windows-x64-mingw

@@ -0,0 +1,15 @@
+# CONFIG.Common.windows-x64-mingw
+#
+# $Revision-Id$
+# This file is maintained by the build community.
+#
+# Definitions for windows-x64-mingw target builds
+# Sites may override these definitions in CONFIG_SITE.Common.windows-x64-mingw
+#-------------------------------------------------------
+
+include $(CONFIG)/os/CONFIG.Common.win32-x86-mingw
+
+ARCH_CLASS = x64
+
+ARCH_DEP_CFLAGS = -m64
+ARCH_DEP_LDFLAGS = -m64

configure/os/CONFIG.cygwin-x86_64.Common

@@ -0,0 +1,10 @@
+# CONFIG.cygwin-x86_64.Common
+#
+# $Revision-Id$
+# This file is maintained by the build community.
+#
+# Definitions for cygwin-x86_64 host archs
+# Sites may override these definitions in CONFIG_SITE.cygwin-x86_64.Common
+#-------------------------------------------------------
+
+include $(CONFIG)/os/CONFIG.cygwin-x86.Common

configure/os/CONFIG.cygwin-x86_64.cygwin-x86_64

@@ -0,0 +1,11 @@
+#  CONFIG.cygwin-x86_64.cygwin-x86_64
+#
+# $Revision-Id$
+#
+# Definitions for cygwin-x86_64 host - cygwin-x86_64 target builds
+# Sites may override these definitions in CONFIG_SITE.cygwin-x86_64.cygwin-x86_64
+#-------------------------------------------------------
+
+# Include common gnu compiler definitions
+include $(CONFIG)/os/CONFIG.cygwin-x86.cygwin-x86
+

configure/os/CONFIG.darwinCommon.darwinCommon

@@ -59,15 +59,17 @@ COMMANDLINE_LIBRARY=READLINE
 
 GNU_DIR = /usr
 
-CC = $(GNU_BIN)/cc
-CCC = $(GNU_BIN)/c++
+# Apple soft-links these compilers to clang/clang++
+CC = cc
+CCC = c++
+GNU = NO
 
 #
 # Darwin shared libraries
 #
 SHRLIB_VERSION = $(EPICS_VERSION).$(EPICS_REVISION).$(EPICS_MODIFICATION)
 SHRLIB_LDFLAGS = -dynamiclib -flat_namespace -undefined suppress \
-       -install_name $(shell $(PERL) $(TOOLS)/fullPathName.pl $(INSTALL_LIB))/$@ \
+       -install_name $(shell $(FULLPATHNAME) $(INSTALL_LIB))/$@ \
        -compatibility_version $(EPICS_VERSION).$(EPICS_REVISION) \
        -current_version $(SHRLIB_VERSION)
 SHRLIB_SUFFIX_BASE = .dylib

configure/os/CONFIG.win32-x86-mingw.win32-x86-mingw

@@ -9,14 +9,15 @@
 # Include common gnu compiler definitions
 include $(CONFIG)/CONFIG.gnuCommon
 
-# gcc, g++, ar, ld, and ranlib must be in user's path
-CC = gcc
-CCC = g++
-AR = ar -rc
-LD = ld -r
-RANLIB = ranlib
-RES=.coff
-RCCMD = windres $(INCLUDES) $< $@
+CMPLR_PREFIX =
+
+CC  = $(CMPLR_PREFIX)gcc
+CCC = $(CMPLR_PREFIX)g++
+AR  = $(CMPLR_PREFIX)ar -rc
+LD  = $(CMPLR_PREFIX)ld -r
+RANLIB = $(CMPLR_PREFIX)ranlib
+RES = .coff
+RCCMD = $(CMPLR_PREFIX)windres $(INCLUDES) $< $@
 
 # No -fPIC avoids "-fPIC ignored for target (all code is position independent)"
 SHRLIB_CFLAGS =
@@ -26,4 +27,4 @@ LOADABLE_SHRLIB_LDFLAGS = -shared -Wl,--out-implib,$(LIB_PREFIX)$*$(LIB_SUFFIX)
 # Override linking with gcc library from CONFIG.gnuCommon
 GNU_LDLIBS_YES =
 
-OP_SYS_LDLIBS = -lws2_32 
+OP_SYS_LDLIBS = -lws2_32

configure/os/CONFIG.windows-x64-mingw.Common

@@ -0,0 +1,11 @@
+# CONFIG.windows-x64-mingw.Common
+#
+# $Revision-Id$
+# This file is maintained by the build community.
+#
+# Definitions for windows-x64-mingw host archs
+# Sites may override these definitions in CONFIG_SITE.windows-x64-mingw.Common
+#-------------------------------------------------------
+
+include $(CONFIG)/os/CONFIG.win32-x86-mingw.Common
+

configure/os/CONFIG.windows-x64-mingw.windows-x64-mingw

@@ -0,0 +1,11 @@
+# CONFIG.windows-x64-mingw.windows-x64-mingw
+#
+# $Revision-Id$
+# This file is maintained by the build community.
+#
+# Definitions for windows-x64-mingw target archs
+# Sites may override these definitions in CONFIG_SITE.windows-x64-mingw.windows-x64-mingw
+#-------------------------------------------------------
+
+# Include common gnu compiler definitions
+include $(CONFIG)/os/CONFIG.win32-x86-mingw.win32-x86-mingw

configure/os/CONFIG_SITE.Common.RTEMS

@@ -5,21 +5,22 @@
 
 # Where to find RTEMS
 #
-RTEMS_VERSION=4.9.2
-RTEMS_BASE=/usr/local/rtems/rtems-$(RTEMS_VERSION)
+RTEMS_VERSION = 4.10.2
+RTEMS_BASE = /usr/local/rtems/rtems-$(RTEMS_VERSION)
 
 # Cross-compile toolchain in $(RTEMS_TOOLS)/bin
 #
-RTEMS_TOOLS=$(RTEMS_BASE)
+RTEMS_TOOLS = $(RTEMS_BASE)
 
 
 # If you're using neither BOOTP/DHCP nor FLASH to pick up your IOC
-# network configuration you must uncomment and specify your Internet 
+# network configuration you must uncomment and specify your Internet
 # Domain Name here
 #
 #OP_SYS_CFLAGS += -DRTEMS_NETWORK_CONFIG_DNS_DOMAINNAME=<domainname>
 
-#
-# Specify your desired command-line-input library
+# Select the command-line-input library to use
 #
 COMMANDLINE_LIBRARY = EPICS
+#COMMANDLINE_LIBRARY = LIBTECLA
+#COMMANDLINE_LIBRARY = READLINE

configure/os/CONFIG_SITE.Common.cygwin-x86

@@ -7,4 +7,7 @@
 
 # If readline is installed uncomment the following line
 # to add command-line editing and history support
-COMMANDLINE_LIBRARY = READLINE
+#COMMANDLINE_LIBRARY = READLINE
+
+# Uncomment the following line if readline has problems
+#LDLIBS_READLINE= -lreadline -lcurses

configure/os/CONFIG_SITE.Common.cygwin-x86_64

@@ -0,0 +1,14 @@
+# CONFIG_SITE.Common.cygwin-x86_64
+#
+# $Revision-Id$
+#
+# Site Specific definitions for cygwin-x86_64 target
+# Only the local epics system manager should modify this file
+
+# If readline is installed uncomment the following line
+# to add command-line editing and history support
+#COMMANDLINE_LIBRARY = READLINE
+
+# Uncomment the following line if readline has problems
+#LDLIBS_READLINE = -lreadline -lcurses
+

configure/os/CONFIG_SITE.Common.darwin-x86

@@ -14,19 +14,19 @@ ARCH_CLASS = x86_64
 #ARCH_CLASS = i386 x86_64
 
 #
-# Comment out the following 3 lines to build with Apple's GCC instead of CLANG.
+# Uncomment the following 3 lines to build with Apple's GCC instead of CLANG.
 #
-CC  = clang
-CCC = clang++
-GNU = NO
+#CC  = gcc
+#CCC = g++
+#GNU = YES
 
 
-# To use MacPorts GCC, comment out ALL the settings above this line,
-# then uncomment (and modify if necessary) the following instead:
+# To use MacPorts GCC uncomment (and modify if necessary) the following:
 
 #GNU_DIR = /opt/local
 #CC = $(GNU_BIN)/gcc -m64
 #CCC = $(GNU_BIN)/g++ -m64
+#GNU = YES
 
 # If you see this or similar errors while building in the src/cap5 directory
 #   gcc: error: unrecognized option '-no-cpp-precomp'

configure/os/CONFIG_SITE.Common.ios-arm

@@ -16,11 +16,16 @@
 #
 #   Xcode 4.5 dropped support for the ARMv6.
 #
-#   ARMv7s devices: iPhone 5
+#   ARMv8 (arm64) devices: iPhone 5S
+#   ARMv7s devices: iPhone 5 and 5C, iPad Gen 4
+#   ARMv7 devices: iPhone 3GS, 4 and 4S, iPod Touch Gen 3 to 5
+#                  iPad Gen 1 to 3, iPad Mini, Apple TV Gen 2 and 3
 #   ARMv6 devices: iPhone 1 and 3G, iPod Touch Gen 1 and 2
-#   All other devices are ARMv7
 
-ARCH_CLASS = armv7 armv7s
+#ARCH_CLASS = arm64
+#ARCH_CLASS = armv7s arm64
+ARCH_CLASS = armv7 armv7s arm64
+#ARCH_CLASS = armv7 armv7s
 #ARCH_CLASS = armv7
 #ARCH_CLASS = armv6 armv7
 #ARCH_CLASS = armv6

configure/os/CONFIG_SITE.Common.iosCommon

@@ -13,11 +13,13 @@
 #IOS_VERSION = 4.3
 #IOS_VERSION = 5.0
 #IOS_VERSION = 5.1
-IOS_VERSION = 6.0
+#IOS_VERSION = 6.0
+#IOS_VERSION = 6.1
+IOS_VERSION = 7.0
 
 
 # Which compiler to use:
-#   CLANG is preferred for recent versions of Xcode
+#   CLANG is required for Xcode 5.0 and later
 #   LLVM_GNU uses the llvm-gcc and llvm-g++ compilers
 #   GNU is needed for older versions of Xcode
 

configure/os/CONFIG_SITE.Common.linux-x86

@@ -38,3 +38,4 @@ COMMANDLINE_LIBRARY = READLINE
 # This does cost disk space, but not memory as debug symbols are not
 # loaded into RAM when the binary is loaded.
 OPT_CFLAGS_YES += -g
+OPT_CXXFLAGS_YES += -g

configure/os/CONFIG_SITE.Common.linux-x86_64

@@ -38,3 +38,4 @@ COMMANDLINE_LIBRARY = READLINE
 # This does cost disk space, but not memory as debug symbols are not
 # loaded into RAM when the binary is loaded.
 OPT_CFLAGS_YES += -g
+OPT_CXXFLAGS_YES += -g

configure/os/CONFIG_SITE.Common.vxWorksCommon

@@ -20,6 +20,7 @@ VXWORKS_VERSION = 5.5
 #VXWORKS_VERSION = 6.6
 #VXWORKS_VERSION = 6.7
 #VXWORKS_VERSION = 6.8
+#VXWORKS_VERSION = 6.9
 
 
 # Sites may override the following path for a particular host
@@ -40,6 +41,7 @@ WIND_BASE = /usr/local/vw/tornado22-$(ARCH_CLASS)
 #WORKBENCH_VERSION = 2.6
 #WORKBENCH_VERSION = 3.0
 #WORKBENCH_VERSION = 3.2
+#WORKBENCH_VERSION = 3.3
 
 
 # Utilities Version number, required from vxWorks 6.8 and later

configure/os/CONFIG_SITE.windows-x64-mingw.windows-x64-mingw

@@ -0,0 +1,9 @@
+# CONFIG_SITE.windows-x64-mingw.windows-x64-mingw
+#
+# $Revision-Id$
+#
+# Site Specific definitions for windows-x64-mingw target
+# Only the local epics system manager should modify this file
+
+# Prefix for mingw compiler from cygwin
+#CMPLR_PREFIX = x86_64-w64-mingw32-

documentation/RELEASE_NOTES.html

@@ -3,15 +3,224 @@
 <html>
 <head>
   <meta http-equiv="content-type" content="text/html; charset=iso-8859-1">
-  <title>EPICS Base R3.14.12.3-pre1 Release Notes</title>
+  <title>EPICS Base R3.14.12.4 Release Notes</title>
 </head>
 
 <body lang="en">
-<h1 align="center">EPICS Base Release 3.14.12.3-pre1</h1>
+<h1 align="center">EPICS Base Release 3.14.12.4</h1>
+
+<h2 align="center">Changes between 3.14.12.3 and 3.14.12.4</h2>
+
+<!-- Insert new items immediately below here ... -->
+
+<h3>New test for environment variables</h3>
+
+<p>A new test program epicsEnvTest has been added to the libCom tests which
+checks environment variable APIs. It was written to confirm that threads see
+environment variable values that have been set in their parent thread. VxWorks
+6.x boot images must be configured with ENV_VAR_USE_HOOKS set to FALSE for the
+correct behaviour to occur (a test failure on VxWorks explains this).</p>
+
+<h3>Inclusion of &lt;top&gt;/cfg/* files refined</h3>
+
+<p>The way the build system includes files installed in the &lt;top&gt;/cfg/*
+directory has been cleaned up. Files whose names begin with CONFIG will now get
+included by the CONFIG step, and files whose names begin with RULES will get
+included in the RULES step. These files are only ever included when GNUMake is
+working in an application build (O.) directory and T_A is defined, so they
+cannot be used to create generic build targets at other levels.</p>
+
+<p>Files whose names don't start with either CONFIG or RULES are no longer
+included automatically, but such files can still be installed into
+&lt;top&gt;/cfg by naming them in the CFG variable.</p>
+
+<h3>Fixed iocsh stream redirection for several commands</h3>
+
+<p>A number of iocsh commands did not respond correctly to redirection of their
+output using the iocsh '>file' or '2>error-file' syntax, and redirecting an
+empty command could create files with garbage names. There may still be a few
+commands that do not properly redirect their output, please notify the core
+developers if you discover any. Thanks to Eric Norum for the iocsh changes.</p>
+
+<p>For externally developed commands, the simplest way to support redirection in
+your C/C++ code is to <tt>#include "epicsStdioRedirect.h"</tt> instead of
+<tt>stdio.h</tt>.</p>
+
+<h3>Fixed crash on loading record instance of unknown type</h3>
+
+<p>Fixed segfault when dbLoadRecords tried to load a record of a type that was
+not defined in its DBD files.</p>
+
+<h3>Hex literal support in epicStrtod()</h3>
+
+<p>Some OS implementations of the standard C library routine strtod() do not
+recognize hexadecimal integers, in particular the libraries provided on Windows
+and VxWorks. The internal implementation of epicsStrtod() that these targets use
+now recognizes the 0x prefix and will convert hex numbers correctly. Thanks to
+Dirk Zimoch for suggesting this change.</p>
+
+<h3>Added support for 64-bit Cygwin and MinGW targets</h3>
+
+<p>Both windows-x64-mingw and cygwin-x86_64 build targets are now provided.</p>
+
+<h3>Windows build issues</h3>
+
+<p>Thanks to Peter Heesterman for suggesting a number of small changes that
+clean up build issues on Windows, mostly related to symbol import and export
+to/from DLLs.</p>
+
+<h3>CAS: GDD Reference Count Underflow</h3>
+
+<p>Thanks to Bruce Hill a source of an underflow in a GDD reference count in the
+CAS code has been fixed.</p>
+
+<h3>Support for Apple Xcode 5.0</h3>
+
+<p>This adds the ability to build for iOS 7.0 and the ARMv8 64-bit CPU on the
+newest iPhone 5S device. Unfortunately the Xcode upgrade breaks the build of the
+ios-x86 simulator target, although the ios-arm target successfully builds code
+which runs fine on the real hardware.</p>
+
+<h3>Reading TSEL field</h3>
+
+<p>The TSEL link field has two complementary uses; it is read to fetch a
+time-stamp event number for the TSE field, or if pointed to the .TIME field of
+another record the record's timestamp is copied directly from the target record.
+However with the latter usage if the TSEL link is itself read back instead of
+pointing to the .TIME field the link appears to have changed to point to the VAL
+field. This is due to an internal detail, and makes it impossible to save the
+TSEL field's value using autosave. This has been fixed, and now the TSEL field
+should always read back the same PV that it was pointed to.</p>
+
+<h3>dbLoadTemplate variable limits adjustable</h3>
+
+<p>The <tt>dbLoadTemplate</tt> command used to allocate a fixed amount of memory
+for the template macro values that it used to 5000 bytes, and also limited the
+number of variables that could defined to 100. These limits can now be changed
+at runtime using the variable <tt>dbTemplateMaxVars</tt> which sets the maximum
+number of macro variables that can be used; the amount of memory allocated for
+value storage is 50 times this number. This variable is registered as an iocsh
+variable in the base.dbd file, and can be adjusted as necessary before each
+individual call to <tt>dbLoadTemplate</tt>.</p>
+
+<p>The code now checks for and prevents any attempt to define more than the set
+number of variables, but it does not check for overruns of the storage buffer.
+This means that template files which define many long macro value strings could
+still cause a buffer overflow and crash the IOC at startup, but increasing the
+variable is all that is needed to allow that template file to be loaded.</p>
+
+<h3>Improvements to dbpf</h3>
+
+<p>It is now possible to use the <tt>dbpf</tt> command to put a long string
+value into a UCHAR array field, previously only CHAR arrays were supported by
+this command even though through Channel Access could put a long string to
+either type. The error message printed by <tt>dbpf</tt> when a value conversion
+fails has also been significantly improved.</p>
+
+<h3>Support for VxWorks 6.9</h3>
+
+<p>Various changes have been made that were needed to allow Base to build and
+run properly on VxWorks 6.9.</p>
+
+<h3>Improvements to aToIPAddr()</h3>
+
+<p>The libCom routine aToIPAddr() and the vxWorks implementation of the
+associated hostToIPAddr() function have been modified to be able to look up
+hostnames that begin with one or more digits. The epicsSockResolveTest program
+was added to check this functionality.</p>
+
+<h4>Added osdFindSymbol for Windows</h4>
+
+<p>Dirk Zimoch implemented the epicsLoadLibrary(), epicsLoadError() and
+epicsFindSymbol() routines for Windows OS targets.</p>
+
+<h4>More dbStatic commands accept "" or "*" to mean 'all'</h4>
+
+<p>The IOC commands dbDumpRecordType, dbDumpMenu and dbDumpRecord will now
+accept either an empty string or any string beginning with an asterisk '*' to
+mean all record types or menus.  Previously the 'all' option for these commands
+required passing in a NULL value, which could be done from the vxWorks shell but
+was not possible from iocsh.</p>
+
+<h4>VxWorks sysAtReboot Registration</h4>
+
+<p>The increasing intelligence of the GNU compiler and linker broke the method
+that was being used by the VxWorks code to register a reboot hook that can close
+down TCP connections nicely before the network stack gets disabled. This has
+been fixed and no longer uses a C++ static contructor to execute that code.</p>
+
+<h4>IOCS_APPL_TOP and INSTALL_LOCATION</h4>
+
+<p>An IOC application that sets INSTALL_LOCATION in its configure/CONFIG_SITE
+file no longer has to set IOCS_APPL_TOP there as well, unless the IOC uses a
+different path than the build host to reach the application's top directory in
+its filesystem. The IOCS_APPL_TOP variable now defaults to the value of
+INSTALL_LOCATION, so setting the latter automatically sets the former. This
+change fixes <a href="https://bugs.launchpad.net/bugs/1165257">Launchpad bug
+1165257</a>.</p>
+
+<h4>devLibVME.h</h4>
+
+<p>Moved the declaration of bcopyLongs() from this header into RTEMS/osdVME.h.
+Its original location broke the build for vxWorks 6.9 (the int nlongs argument
+becomes size_t in 6.9, thus conflicting with this declaration). The only local
+implementation of this routine is found in RTEMS/devLibVMEOSD.c, but it is not
+used anywhere in Base.</p>
+
+<h4>Allow empty database files</h4>
+
+<p>The IOC used to report an error if dbLoadRecords or dbLoadDatabase was asked
+to load an empty file or one containing just whitespace and/or comments. Such
+files are now permitted, simplifying the task of automated database generation
+programs which might discover they have nothing to output.</p>
+
+<h4>High-Resolution Time Provider on MacOS</h4>
+
+<p>MacOS does not provide the clock_gettime() API with CLOCK_REALTIME that other
+Posix systems implement, so we previously used gettimeofday() to fetch the
+current date & time from the OS. That older routine only provides the time with
+a resolution of 1 microsecond though, whereas clock_gettime() gives results with
+a nanosecond resolution.  This release uses a new MachTime time provider on
+MacOS which uses the Mach Kernel's CALENDAR_CLOCK service to fetch the time, and
+provides nanosecond resolution.</p>
+
+<h4>Time drift in periodic scans</h4>
+
+<p>The implementation of the periodic scan code has been modified to remove
+long-term drift associated with OS thread sheduling. The new code keeps scan
+times much more closely tied to the system clock tick, only allowing the scan
+period to drift if the record processing time takes longer to execute than the
+interval between scans. If this happens the scan thread is made to wait for an
+additional half-period but at most 1 second before the records are scanned
+again, to allow lower priority threads some time to process on a preemptive
+priority scheduled OS. After 10 repeated over-runs a warning will be logged,
+with an increasing delay between messages up to hourly.</p>
+
+<p>This fixes <a href="https://bugs.launchpad.net/bugs/597054">launchpad bug
+597054</a>.</p>
 
 <h2 align="center">Changes between 3.14.12.2 and 3.14.12.3</h2>
 
-<!-- Insert new items immediately below here ... -->
+<h4>Hex literals in CALC expressions</h4>
+
+<p>In previous releases, CALC expressions could contain hexadecimal literal
+integers on a target if the OS implementation of strtod() allows them (the
+vxWorks implementation does not). Now hex literal integers can be used in CALC
+expressions on all architectures. Hexadecimal floating point literals may have
+worked on some architectures in the past, but will no longer be accepted.</p>
+
+<h4>CAS: Added propertyEventMask support</h4>
+
+<p>Server tools should now be able to detect subscriptions to and send updates
+for DBE_PROPERTY events, using a casEventMask value returned by the new
+caServer::propertyEventMask() method.</p>
+
+<h4>caRepeater now built by default</h4>
+
+<p>Previously caRepeater was only built for host architectures, so builds for
+cross-compiled but workstation-type targets like linux-arm did not build it.
+Explicit exceptions prevent it being built on architectures like vxWorks, RTEMS
+and iOS which do not support normal executable programs.</p>
 
 <h4>Array Subroutine (aSub) record type fixes</h4>
 
@@ -69,6 +278,9 @@ has trailing whitespace characters.</p>
 fixed in this release:</p>
 
 <ul>
+<li>1090009
+  <a href="https://bugs.launchpad.net/bugs/1090009">
+    osdSufficentSpaceInPoolQuery fails on vxWorks 2 GB system</a></li>
 <li>999167
   <a href="https://launchpad.net/bugs/999167">
     Missing epicsShareFunc for casStatsFetch</a></li>
@@ -82,7 +294,19 @@ fixed in this release:</p>
     error</a></li>
 <li>903448
   <a href="https://launchpad.net/bugs/903448">
-    RHEL5 nss ldap update cause stack size related failure</a></li>
+    RHEL5 nss ldap update cause stack size related failure</a>
+  <p>
+    This bug fix changed the stack sizes for both Posix and Windows targets as
+    follows:</p>
+  <table>
+    <tr><th>epicsThreadStackSizeClass</th><th>New Stack Size</th></tr>
+    <tr><td>epicsThreadStackSmall</td>
+      <td>0x10000 &times; sizeof (void *)</td></tr>
+    <tr><td>epicsThreadStackMedium</td>
+      <td>0x20000 &times; sizeof (void *)</td></tr>
+    <tr><td>epicsThreadStackBig</td>
+      <td>0x40000 &times; sizeof (void *)</td></tr>
+  </table></li>
 
 </ul>
 

src/ca/CASG.cpp

@@ -25,8 +25,6 @@
 #include "cac.h"
 #include "sgAutoPtr.h"
 
-casgRecycle::~casgRecycle () {}
-
 CASG::CASG ( epicsGuard < epicsMutex > & guard, ca_client_context & cacIn ) :
     client ( cacIn ), magic ( CASG_MAGIC )
 {
@@ -38,12 +36,13 @@ CASG::~CASG ()
 }
 
 void CASG::destructor ( 
+    CallbackGuard & cbGuard,
     epicsGuard < epicsMutex > & guard )
 {
     guard.assertIdenticalMutex ( this->client.mutexRef() );
 
     if ( this->verify ( guard ) ) {
-        this->reset ( guard );
+        this->reset ( cbGuard, guard );
         this->client.uninstallCASG ( guard, *this );
         this->magic = 0;
     }
@@ -127,36 +126,37 @@ int CASG::block (
         delay = cur_time - beg_time;
     }
 
-    this->reset ( guard );
-
     return status;
 }
 
 void CASG::reset ( 
+    CallbackGuard & cbGuard,
     epicsGuard < epicsMutex > & guard )
 {
     guard.assertIdenticalMutex ( this->client.mutexRef() );
-    this->destroyCompletedIO ( guard );
-    this->destroyPendingIO ( guard );
+    this->destroyCompletedIO ( cbGuard, guard );
+    this->destroyPendingIO ( cbGuard, guard );
 }
 
 // lock must be applied
 void CASG::destroyCompletedIO ( 
+    CallbackGuard & cbGuard,
     epicsGuard < epicsMutex > & guard )
 {
     guard.assertIdenticalMutex ( this->client.mutexRef() );
     syncGroupNotify * pNotify;
     while ( ( pNotify = this->ioCompletedList.get () ) ) {
-        pNotify->destroy ( guard, * this );
+        pNotify->destroy ( cbGuard, guard );
     }
 }
 
 void CASG::destroyPendingIO ( 
+    CallbackGuard & cbGuard,
     epicsGuard < epicsMutex > & guard )
 {
     guard.assertIdenticalMutex ( this->client.mutexRef() );
     while ( syncGroupNotify * pNotify = this->ioPendingList.first () ) {
-        pNotify->cancel ( guard );
+        pNotify->cancel ( cbGuard, guard );
         // cancel must release the guard while 
         // canceling put callbacks so we
         // must double check list membership
@@ -166,7 +166,7 @@ void CASG::destroyPendingIO (
         else {
             this->ioCompletedList.remove ( *pNotify );
         }
-        pNotify->destroy ( guard, *this );
+        pNotify->destroy ( cbGuard, guard );
     }
 }
 
@@ -201,10 +201,11 @@ void CASG::show (
 }
 
 bool CASG::ioComplete (
+    CallbackGuard & cbGuard,
     epicsGuard < epicsMutex > & guard )
 {
     guard.assertIdenticalMutex ( this->client.mutexRef() );
-    this->destroyCompletedIO ( guard );
+    this->destroyCompletedIO ( cbGuard, guard );
     return this->ioPendingList.count () == 0u;
 }
 
@@ -212,9 +213,9 @@ void CASG::put ( epicsGuard < epicsMutex > & guard, chid pChan,
     unsigned type, arrayElementCount count, const void * pValue )
 {
     guard.assertIdenticalMutex ( this->client.mutexRef() );
-    sgAutoPtr < syncGroupWriteNotify > pNotify ( guard, *this, this->ioPendingList );
+    sgAutoPtr < syncGroupWriteNotify > pNotify ( guard, *this );
     pNotify = syncGroupWriteNotify::factory ( 
-        this->freeListWriteOP, *this, pChan );
+        this->freeListWriteOP, *this, & CASG :: recycleWriteNotifyIO, pChan );
     pNotify->begin ( guard, type, count, pValue );
     pNotify.release ();
 }
@@ -223,9 +224,9 @@ void CASG::get ( epicsGuard < epicsMutex > & guard, chid pChan,
                 unsigned type, arrayElementCount count, void *pValue )
 {
     guard.assertIdenticalMutex ( this->client.mutexRef() );
-    sgAutoPtr < syncGroupReadNotify > pNotify ( guard, *this, this->ioPendingList );
+    sgAutoPtr < syncGroupReadNotify > pNotify ( guard, *this );
     pNotify = syncGroupReadNotify::factory ( 
-        this->freeListReadOP, *this, pChan, pValue );
+        this->freeListReadOP, *this, & CASG :: recycleReadNotifyIO, pChan, pValue );
     pNotify->begin ( guard, type, count );
     pNotify.release ();
 }
@@ -241,20 +242,20 @@ void CASG::completionNotify (
     }
 }
 
-void CASG::recycleSyncGroupWriteNotify ( 
-    epicsGuard < epicsMutex > & guard, syncGroupWriteNotify & io )
-{
-    guard.assertIdenticalMutex ( this->client.mutexRef() );
-    this->freeListWriteOP.release ( & io );
-}
-
-void CASG::recycleSyncGroupReadNotify ( 
-    epicsGuard < epicsMutex > & guard, syncGroupReadNotify & io )
+void CASG :: recycleReadNotifyIO ( epicsGuard < epicsMutex > & guard, 
+                            syncGroupReadNotify & io )
 {
     guard.assertIdenticalMutex ( this->client.mutexRef() );
     this->freeListReadOP.release ( & io );
 }
 
+void CASG :: recycleWriteNotifyIO ( epicsGuard < epicsMutex > & guard, 
+                            syncGroupWriteNotify & io )
+{
+    guard.assertIdenticalMutex ( this->client.mutexRef() );
+    this->freeListWriteOP.release ( & io );
+}
+
 int CASG :: printFormated ( const char *pformat, ... )
 {
     va_list theArgs;
@@ -295,13 +296,6 @@ void CASG::exception (
     }
 }
 
-void * CASG::operator new ( size_t ) // X aCC 361
-{
-    // The HPUX compiler seems to require this even though no code
-    // calls it directly
-    throw std::logic_error ( "why is the compiler calling private operator new" );
-}
-
 void CASG::operator delete ( void * )
 {
     // Visual C++ .net appears to require operator delete if

src/ca/CAref.html

@@ -165,7 +165,8 @@ $Date$</span></small></p>
   <li><a href="#ca_pend_io">block for certain requests to complete</a></li>
   <li><a href="#ca_test_io">test to see if certain requests have
   completed</a></li>
-  <li><a href="#ca_pend_event">process CA client library background activities</a></li>
+  <li><a href="#ca_pend_event">process CA client library background
+    activities</a></li>
   <li><a href="#ca_flush_io">flush outstanding requests to the server</a></li>
   <li><a href="#ca_add_exception_event">replace the default exception
     handler</a></li>
@@ -454,26 +455,20 @@ Environment</a> below.</p>
 
 <h3><a name="firewall">Firewalls</a></h3>
 
-<p>If you want channel access clients on a machine to be able to see
-beacons and replies to broadcast PV search requests you need to permit
-inbound UDP packets with source port EPICS_CA_SERVER_PORT (default is 5064)
-or destination port EPICS_CA_REPEATER_PORT (default is 5065). On systems
-using iptables this can be accomplished by rules like</p>
-
-<pre>
-     -A INPUT -s 192.168.0.0/22 -p udp --sport 5064 -j ACCEPT
-     -A INPUT -s 192.168.0.0/22 -p udp --dport 5065 -j ACCEPT
-</pre>
+<p>If you want channel access clients on a machine to be able to see beacons
+and replies to broadcast PV search requests, you need to permit inbound UDP
+packets with source port EPICS_CA_SERVER_PORT (default is 5064) or destination
+port EPICS_CA_REPEATER_PORT (default is 5065). On systems using iptables this
+can be accomplished by rules like</p>
+<pre>     -A INPUT -s 192.168.0.0/22 -p udp --sport 5064 -j ACCEPT
+     -A INPUT -s 192.168.0.0/22 -p udp --dport 5065 -j ACCEPT</pre>
 
 <p>If you want channel access servers (e.g. "soft IOCs") on a machine to be
-able to see clients you need to permit inbound TCP or UDP packets with source
-port EPICS_CA_SERVER_PORT (default is 5064).  On systems using iptables this
-can be accomplished by rules like</p>
-
-<pre>
-     -A INPUT -s 192.168.0.0/22 -p udp --dport 5064 -j ACCEPT
-     -A INPUT -s 192.168.0.0/22 -p tcp --dport 5064 -j ACCEPT
-</pre>
+able to be seen by clients, you need to permit inbound TCP or UDP packets with
+destination port EPICS_CA_SERVER_PORT (default is 5064). On systems using
+iptables this can be accomplished by rules like</p>
+<pre>     -A INPUT -s 192.168.0.0/22 -p udp --dport 5064 -j ACCEPT
+     -A INPUT -s 192.168.0.0/22 -p tcp --dport 5064 -j ACCEPT</pre>
 
 <p>In all cases the "-s 192.168.0.0/22" specifies the range of addresses from
 which you wish to accept packets.</p>
@@ -498,9 +493,8 @@ broadcast address of that subnet is added to the list. For each point to point
 interface found, the destination address of that link is added to the list.
 This automatic server address list initialization can be disabled if the EPICS
 environment variable EPICS_CA_AUTO_ADDR_LIST exists and its value is either
-of "no" or "NO". The typical default is to enable network interface
-introspection driven initialization with EPICS_CA_AUTO_ADDR_LIST set to "YES"
-or "yes".</p>
+"no" or "NO". The typical default is to enable network interface introspection
+driven initialization with EPICS_CA_AUTO_ADDR_LIST set to "YES" or "yes".</p>
 
 <p>Following network interface introspection, any IP addresses specified in the
 EPICS environment variable EPICS_CA_ADDR_LIST are added to the list of
@@ -511,8 +505,8 @@ CA servers unless a CA proxy (gateway) is installed. The addresses in
 EPICS_CA_ADDR_LIST may be dotted IP addresses or host names if the local OS has
 support for host name to IP address translation. When multiple names are added
 to EPICS_CA_ADDR_LIST they must be separated by white space. There is no
-requirement that the addresses specified in the EPICS_CA_ADDR_LIST be
-broadcast addresses, but this will often be the most convenient choice.</p>
+requirement that the addresses specified in the EPICS_CA_ADDR_LIST be broadcast
+addresses, but this will often be the most convenient choice.</p>
 
 <p>For any IP addresses specified in the EPICS environment variable
 EPICS_CA_NAME_SERVERS, TCP connections are opened and used for CA client name
@@ -560,7 +554,7 @@ default to EPICS_CA_SERVER_PORT.</p>
 <p>Frequently vxWorks systems boot by default with routes limiting access only
 to the local subnet. If a EPICS system is operating in a WAN environment it may
 be necessary to configure routes into the vxWorks system which enable a vxWorks
-based CA server to respond to requests originating outside it's subnet. These
+based CA server to respond to requests originating outside its subnet. These
 routing restrictions can also apply to vxWorks base CA clients communicating
 with off subnet servers. An EPICS system manager can implement an rudimentary,
 but robust, form of access control for a particular host by not providing
@@ -865,8 +859,8 @@ the contents of EPICS_CA_ADDR_LIST is used to augment the list. Otherwise, the
 list is not augmented.</p>
 
 <p>The EPICS_CAS_BEACON_PORT parameter specifies the destination port for
-server beacons. The only exception to this occurs when  ports are specified
-in EPICS_CAS_BEACON_ADDR_LIST or possibly in EPICS_CA_ADDR_LIST. If
+server beacons. The only exception to this occurs when ports are specified in
+EPICS_CAS_BEACON_ADDR_LIST or possibly in EPICS_CA_ADDR_LIST. If
 EPICS_CAS_BEACON_PORT is not specified then beacons are sent to the port
 specified in EPICS_CA_REPEATER_PORT.</p>
 
@@ -874,7 +868,7 @@ specified in EPICS_CA_REPEATER_PORT.</p>
 
 <p>The parameter EPICS_CAS_INTF_ADDR_LIST allows a ca server to bind itself to,
 and therefore accept messages only over, a limited set of the local host's
-network interfaces (each specified by it's IP address). On UNIX systems type
+network interfaces (each specified by its IP address). On UNIX systems type
 "netstat -i" (type "ipconfig" on windows) to see a list of the local host's
 network interfaces. Specifically, UDP search messages addressed to both the IP
 addresses in EPICS_CAS_INTF_ADDR_LIST and also to the broadcast addresses of
@@ -1885,7 +1879,7 @@ order to connect to this new beacon-out-of-range server. The typical situation
 where a client would not see the server's beacon might be when the client isnt
 on the same IP subnet as the server, and the client's EPICS_CA_ADDR_LIST was
 modified to include a destination address for the server, but the server's
-beacon address list was not modified so that it's beacons are received by the
+beacon address list was not modified so that its beacons are received by the
 client.</p>
 
 <h4><a name="Server1">A Server's IP Address Was Changed</a></h4>
@@ -1938,8 +1932,8 @@ Termination Appear to be Ignored</a></h3>
 <p>Short lived CA client applications that issue a CA put request and then
 immediately exit the process (return from <code>main</code> or call
 <code>exit</code>) may find that there request isn't executed. To guarantee
-that the request is sent call <code>ca_flush</code> followed by
-<code>ca_context_destroy</code> prior to terminating the process.</p>
+that the request is sent call <code>ca_flush_io()</code> followed by
+<code>ca_context_destroy()</code> prior to terminating the process.</p>
 
 <h3><a name="Problems">ENOBUFS Messages</a></h3>
 
@@ -2017,8 +2011,8 @@ OS and even between different versions of the same OS.</p>
 <p>If the subscription update producer in the server produces subscription
 updates faster than the subscription update consumer in the client consumes
 them, then events have to be discarded if the buffering in the server
-isn't allowed to grow to an infinite size. This is a law of nature
-- based on queuing theory of course.</p>
+isn't allowed to grow to an infinite size. This is a law of nature &ndash;
+based on queuing theory of course.</p>
 
 <p>What is done depends on the version of the CA server. All server versions
 place quotas on the maximum number of subscription updates allowed on the
@@ -2040,10 +2034,10 @@ server to resume with subscription updates. This prevents slow clients from
 getting time warped, but also guarantees that intervening events are discarded
 until the slow client catches up.</p>
 
-<p>There is currently no message on the IOC's console when a
-particular client is slow on the uptake. A message of this type used to exist
-many years ago, but it was a source of confusion (and what we will call
-message noise) so it was removed. </p>
+<p>There is currently no message on the IOC's console when a particular client
+is slow on the uptake. A message of this type used to exist many years ago, but
+it was a source of confusion (and what we will call message noise) so it was
+removed.</p>
 
 <p>There is unfortunately no field in the protocol allowing the server to
 indicate that an intervening subscription update was discarded. We should
@@ -2320,7 +2314,7 @@ int main ( int argc, char ** argv )
 
 <p>Certain CA client initiated requests asynchronously execute an application
 supplied call back in the client process when a response arrives. The functions
-ca_put_callback, ca_get_callback, and ca_add_event all request notification of
+ca_put_callback, ca_get_callback, and ca_create_subscription all request notification of
 asynchronous completion via this mechanism. The <code>event_handler_args
 </code>structure is passed <em>by value</em> to the application supplied
 callback. In this structure the <code>dbr</code> field is a void pointer to any
@@ -2355,8 +2349,8 @@ void myCallback ( struct event_handler_args args )
 <h3><a name="Channel1">Channel Access Exceptions</a></h3>
 
 <p>When the server detects a failure, and there is no client call back function
-attached to the request, an exception handler is executed in the client.
-The default exception handler prints a message on the console and exits if the
+attached to the request, an exception handler is executed in the client. The
+default exception handler prints a message on the console and exits if the
 exception condition is severe. Certain internal exceptions within the CA client
 library, and failures detected by the SEVCHK macro may also cause the exception
 handler to be invoked. To modify this behavior see <a
@@ -2423,12 +2417,12 @@ same process).</p>
 all OS (in past releases the library was thread safe only on vxWorks). When the
 client library is initialized the programmer may specify if preemptive callback
 is to be enabled. Preemptive callback is disabled by default. If preemptive
-callback is enabled, then the user's callback functions might be called by
-CA's auxiliary threads when the main initiating channel access thread is not
-inside of a function in the channel access client library. Otherwise, the
-user's callback functions will be called only when the main initiating channel
-access thread is executing inside of the CA client library. When the CA client
-library invokes a user's callback function, it will always wait for the current
+callback is enabled, then the user's callback functions might be called by CA's
+auxiliary threads when the main initiating channel access thread is not inside
+of a function in the channel access client library. Otherwise, the user's
+callback functions will be called only when the main initiating channel access
+thread is executing inside of the CA client library. When the CA client library
+invokes a user's callback function, it will always wait for the current
 callback to complete prior to executing another callback function. Programmers
 enabling preemptive callback should be familiar with using mutex locks to
 create a reliable multi-threaded program.</p>
@@ -2457,10 +2451,10 @@ address space (process) to be independent of each other. For example, the
 database CA links and the sequencer are designed to not use the same CA client
 library threads, network circuits, and data structures. Each thread that calls
 <a href="#ca_context_create">ca_context_create()</a> for the first time either
-directly or implicitly when calling any CA library function for the first
-time, creates a CA client library context. A CA client library context contains
-all of the threads, network circuits, and data structures required to connect
-and communicate with the channels that a CA client application has created. The
+directly or implicitly when calling any CA library function for the first time,
+creates a CA client library context. A CA client library context contains all
+of the threads, network circuits, and data structures required to connect and
+communicate with the channels that a CA client application has created. The
 priority of auxiliary threads spawned by the CA client library are at fixed
 offsets from the priority of the thread that called <a
 href="#ca_context_create">ca_context_create()</a>. An application specific
@@ -2530,9 +2524,9 @@ questionable practice for the following reasons.</p>
 <ul>
   <li>The vxWorks shell thread runs at the very highest priority in the system
     and therefore socket calls are made at a priority that is above the
-    priority of tNetTask - a practice that has caused the WRS IP kernel
-    to get sick in the past. That symptom was observed some time ago, but we
-    don't know if WRS has fixed the problem.</li>
+    priority of tNetTask. This has caused problems with the WRS IP kernel in
+    the past. That symptom was observed some time ago, but we don't know if
+    WRS has fixed the problem.</li>
 </ul>
 <ul>
   <li>The vxWorks shell thread runs at the very highest priority in the system
@@ -2648,7 +2642,7 @@ get called in the correct order.</p>
 resources used by the client library such as sockets and allocated memory are
 automatically released by the system when the process exits and
 ca_context_destroy() hasn't been called, but on light weight systems such as
-vxWorks or RTEMS no cleanup occurs unless the application call
+vxWorks or RTEMS no cleanup occurs unless the application calls
 ca_context_destroy().</p>
 
 <h4>Returns</h4>
@@ -2661,16 +2655,10 @@ ca_context_destroy().</p>
 
 <h3><code><a name="ca_create_channel">ca_create_channel()</a></code></h3>
 <pre>#include &lt;cadef.h&gt;
-typedef void ( *pCallBack ) (
-         struct connection_handler_args );
-int ca_create_channel
-(
-        const char     *PROCESS_VARIABLE_NAME, 
-        caCh           *USERFUNC, 
-        void           *PUSER,
-        capri          priority,
-        chid           *PCHID
-);</pre>
+typedef void ( caCh ) (struct connection_handler_args);
+int ca_create_channel (const char *PVNAME,
+        caCh *USERFUNC, void *PUSER,
+        capri PRIORITY, chid *PCHID );</pre>
 
 <h4>Description</h4>
 
@@ -2685,7 +2673,7 @@ on a channel.</p>
 
 <p>The circuit may be initially connected or disconnected depending on the
 state of the network and the location of the channel. A channel will only enter
-a connected state after server's address is determined, and only if channel
+a connected state after the server's address is determined, and only if channel
 access successfully establishes a virtual circuit through the network to the
 server. Channel access routines that send a request to a server will return
 ECA_DISCONNCHID if the channel is currently disconnected.</p>
@@ -2695,7 +2683,7 @@ a connected state.</p>
 <ul>
   <li>The first and simplest method requires that you call ca_pend_io(), and
     wait for successful completion, prior to using a channel that was created
-    specifying a nil connection call back function pointer.</li>
+    specifying a nill connection call back function pointer.</li>
   <li>The second method requires that you register a connection handler by
     supplying a valid connection callback function pointer. This connection
     handler is called whenever the connection state of the channel changes. If
@@ -2719,7 +2707,7 @@ time.</p>
 
 <h4>Arguments</h4>
 <dl>
-  <dt><code>PROCESS_VARIABLE_NAME</code></dt>
+  <dt><code>PVNAME</code></dt>
     <dd>A nil terminated process variable name string. EPICS process control
       function block database variable names are of the form "&lt;record
       name&gt;.&lt;field name&gt;". If the field name and the period separator
@@ -2731,10 +2719,10 @@ time.</p>
   <dt><code>USERFUNC</code></dt>
     <dd>Optional address of the user's call back function to be run when the
       connection state changes. Casual users of channel access may decide to
-      set this field to nil or 0 if they do not need to have a call back
+      set this field to nill or 0 if they do not need to have a call back
       function run in response to each connection state change event.
       <p>The following structure is passed <em>by value </em>to the user's
-      connection connection callback function. The <code>op</code> field will
+      connection callback function. The <code>op</code> field will
       be set by the CA client library to <code>CA_OP_CONN_UP</code> when the
       channel connects, and to <code>CA_OP_CONN_DOWN</code> when the channel
       disconnects. See <code><a href="#ca_puser">ca_puser</a></code> if the
@@ -2751,7 +2739,7 @@ time.</p>
     <dd>The value of this void pointer argument is retained in
       storage associated with the specified channel. See the MACROS manual page
       for reading and writing this field. Casual users of channel access may
-      wish to set this field to nil or 0.</dd>
+      wish to set this field to nill or 0.</dd>
 </dl>
 <dl>
   <dt><code>PRIORITY</code></dt>
@@ -2818,29 +2806,27 @@ subscriptions (monitors) registered with the channel.</p>
 <pre>#include &lt;cadef.h&gt;
 int ca_put ( chtype TYPE, 
         chid CHID, void *PVALUE ); 
-int ca_array_put ( chtype TYPE, 
-        unsigned long COUNT, 
+int ca_array_put ( chtype TYPE, unsigned long COUNT, 
         chid CHID, const void *PVALUE);
-typedef void ( *pCallBack ) (struct event_handler_args );
+typedef void ( caEventCallBackFunc ) (struct event_handler_args);
 int ca_put_callback ( chtype TYPE, 
         chid CHID, const void *PVALUE, 
-        pCallBack PFUNC, void *USERARG ); 
-int ca_array_put_callback ( chtype TYPE, 
-        unsigned long COUNT, 
+        caEventCallBackFunc PFUNC, void *USERARG ); 
+int ca_array_put_callback ( chtype TYPE, unsigned long COUNT, 
         chid CHID, const void *PVALUE, 
-        pCallBack PFUNC, void *USERARG );</pre>
+        caEventCallBackFunc PFUNC, void *USERARG );</pre>
 
 <h4>Description</h4>
 
 <p>Write a scalar or array value to a process variable.</p>
 
-<p>When ca_array_put  or ca_put are invoked the client will receive no response
+<p>When ca_put or ca_array_put are invoked the client will receive no response
 unless the request can not be fulfilled in the server. If unsuccessful an
 exception handler is run on the client side.</p>
 
-<p>When ca_array_put_callback are invoked the user supplied asynchronous call
-back is called only after the initiated write operation, and all actions
-resulting from the initiating write operation, complete.</p>
+<p>When ca_put_callback or ca_array_put_callback are invoked the user supplied
+asynchronous call back is called only after the initiated write operation, and
+all actions resulting from the initiating write operation, complete.</p>
 
 <p>If unsuccessful the call back function is invoked indicating failure status.
 </p>
@@ -2861,7 +2847,7 @@ This allows several requests to be efficiently combined into one message.</p>
 <h4>Description (IOC Database Specific)</h4>
 
 <p>A CA put request causes the record to process if the record's SCAN field is
-set to passive, and the field being written has it's process passive attribute
+set to passive, and the field being written has its process passive attribute
 set to true. If such a record is already processing when a put request is
 initiated the specified field is written immediately, and the record is
 scheduled to process again as soon as it finishes processing. Earlier instances
@@ -2869,20 +2855,19 @@ of multiple put requests initiated while the record is being processing may be
 discarded, but the last put request initiated is always written and
 processed.</p>
 
-<p>A CA put <span style="font-style: italic;">callback</span> request causes
-the record to process if the record's SCAN field is set to passive, and the
-field being written has it's process passive attribute set to true. For such a
-record, the user's put callback function is not called until after the record,
-and any records that the record links to, finish processing. If such a record
-is already processing when a put <span
-style="font-style: italic;">callback</span> request is initiated the put <span
-style="font-style: italic;">callback</span> request is postponed until the
-record, and any records it links to, finish processing.</p>
+<p>A CA put <em>callback</em> request causes the record to process if the
+record's SCAN field is set to passive, and the field being written has its
+process passive attribute set to true. For such a record, the user's put
+callback function is not called until after the record, and any records that
+the record links to, finish processing. If such a record is already processing
+when a put <em>callback</em> request is initiated the put <em>callback</em>
+request is postponed until the record, and any records it links to, finish
+processing.</p>
 
 <p>If the record's SCAN field is not set to passive, or the field being written
-has it's process passive attribute set to false then the CA put or CA put
-callback request cause the specified field to be immediately written, but they
-do not cause the record to be processed.</p>
+has its process passive attribute set to false then the CA put or CA put
+<em>callback</em> request cause the specified field to be immediately written,
+but they do not cause the record to be processed.</p>
 
 <h4>Arguments</h4>
 <dl>
@@ -2948,18 +2933,19 @@ int ca_get ( chtype TYPE,
         chid CHID, void *PVALUE );
 int ca_array_get ( chtype TYPE, unsigned long COUNT,
         chid CHID, void *PVALUE );
-typedef void ( *pCallBack ) (struct event_handler_args );
+typedef void ( caEventCallBackFunc ) (struct event_handler_args);
 int ca_get_callback ( chtype TYPE,
-        chid CHID, pCallBack USERFUNC, void *USERARG);
+        chid CHID,
+        caEventCallBackFunc USERFUNC, void *USERARG);
 int ca_array_get_callback ( chtype TYPE, unsigned long COUNT,
         chid CHID,
-        pCallBack USERFUNC, void *USERARG );</pre>
+        caEventCallBackFunc USERFUNC, void *USERARG);</pre>
 
 <h4>Description</h4>
 
 <p>Read a scalar or array value from a process variable.</p>
 
-<p>When ca_get or ca_array_get are invoked the returned channel value cant be
+<p>When ca_get or ca_array_get are invoked the returned channel value can't be
 assumed to be stable in the application supplied buffer until after ECA_NORMAL
 is returned from ca_pend_io. If a connection is lost outstanding ca get
 requests are not automatically reissued following reconnect.</p>
@@ -3051,11 +3037,10 @@ when a CA get request is initiated.</p>
 
 <h3><code><a name="ca_add_event">ca_create_subscription()</a></code></h3>
 <pre>#include &lt;cadef.h&gt;
-typedef void ( *pCallBack ) (
-        struct event_handler_args );
-int ca_create_subscription ( chtype TYPE, 
-        unsigned long COUNT, chid CHID, 
-        unsigned long MASK, pCallBack USERFUNC, void *USERARG, 
+typedef void ( caEventCallBackFunc ) (struct event_handler_args);
+int ca_create_subscription ( chtype TYPE, unsigned long COUNT,
+        chid CHID, unsigned long MASK,
+        caEventCallBackFunc USERFUNC, void *USERARG, 
         evid *PEVID );</pre>
 
 <h4>Description</h4>
@@ -3064,10 +3049,10 @@ int ca_create_subscription ( chtype TYPE,
 invoked whenever the process variable undergoes significant state changes. A
 significant change can be a change in the process variable's value, alarm
 status, or alarm severity. In the process control function block database the
-deadband field determines the magnitude of a significant change for for the
+deadband field determines the magnitude of a significant change for the
 process variable's value. Each call to this function consumes resources in the
 client library and potentially a CA server until one of ca_clear_channel or
-ca_clear_event is called.</p>
+ca_clear_subscription is called.</p>
 
 <p>Subscriptions may be installed or canceled against both connected and
 disconnected channels. The specified USERFUNC is called once immediately after
@@ -3075,7 +3060,7 @@ the subscription is installed with the process variable's current state if the
 process variable is connected. Otherwise, the specified USERFUNC is called
 immediately after establishing a connection (or reconnection) with the process
 variable. The specified USERFUNC is called immediately with the process
-variable's current state from within ca_add_event() if the client and the
+variable's current state from within ca_create_subscription() if the client and the
 process variable share the same address space.</p>
 
 <p>If a subscription is installed on a channel in a disconnected state then the
@@ -3132,8 +3117,8 @@ indicating the current state of the channel.</p>
 <dl>
   <dt><code>PEVID</code></dt>
     <dd>This is a pointer to user supplied event id which is overwritten if
-      successful. This event id can later be used to clear a specific
-      event. This option may may be omitted by passing a nil pointer.</dd>
+      successful. This event id can later be used to clear a specific event.
+      This option may be omitted by passing a nill pointer.</dd>
 </dl>
 <dl>
   <dt><code>MASK</code></dt>
@@ -3181,7 +3166,7 @@ int ca_clear_subscription ( evid EVID );</pre>
 
 <p>Cancel a subscription.</p>
 
-<p>All ca_clear_event() requests such as the above are accumulated (buffered)
+<p>All cancel-subscription requests such as the above are accumulated (buffered)
 and not forwarded to the server until one of ca_flush_io, ca_pend_io,
 ca_pend_event, or ca_sg_pend are called. This allows several requests to be
 efficiently sent together in one message.</p>
@@ -3189,7 +3174,7 @@ efficiently sent together in one message.</p>
 <h4>Arguments</h4>
 <dl>
   <dt>EVID</dt>
-    <dd>event id returned by ca_add_event()</dd>
+    <dd>event id returned by ca_create_subscription()</dd>
 </dl>
 
 <h4>Returns</h4>
@@ -3240,9 +3225,9 @@ activities</em>.</p>
 network delays such as Ethernet collision exponential back off until
 retransmission delays which can be quite long on overloaded networks.</p>
 
-<p>Unlike <code><a href="#ca_pend_event">ca_pend_event</a></code>, this routine will
-not process CA's background activities if none of the selected IO requests are
-pending.</p>
+<p>Unlike <code><a href="#ca_pend_event">ca_pend_event</a></code>, this routine
+will not process CA's background activities if none of the selected IO requests
+are pending.</p>
 
 <h4>Arguments</h4>
 <dl>
@@ -3305,7 +3290,7 @@ activity is processed for TIMEOUT seconds.</p>
 background activity is processed.</p>
 
 <p>The ca_pend_event function will <em>not</em> return before the specified
-time-out expires and all unfinished channel access labor has been processed,
+timeout expires and all unfinished channel access labor has been processed,
 and unlike <code><a href="#ca_pend_io">ca_pend_io</a></code> returning from the
 function does <em>not </em>indicate anything about the status of pending IO
 requests.</p>
@@ -3417,7 +3402,7 @@ field should not be used.</p>
 <dl>
   <dt><code>USERFUNC</code></dt>
     <dd>Address of user callback function to be executed when an exceptions
-      occur. Passing a nil value causes the default exception handler to be
+      occur. Passing a nill value causes the default exception handler to be
       reinstalled. The following structure is passed by value to the user's
       callback function. Currently, the <code>op</code> field can be one of
       <code>CA_OP_GET, CA_OP_PUT, CA_OP_CREATE_CHANNEL, CA_OP_ADD_EVENT,
@@ -3540,7 +3525,7 @@ get the lowest latency response to the arrival of CA messages.</p>
 <h3><code><a name="ca_replace_printf_handler">ca_replace_printf_handler
 ()</a></code></h3>
 <pre>#include &lt;cadef.h&gt;
-typedef int caPrintfFunc ( const char *pFromat, va_list args );
+typedef int caPrintfFunc ( const char *pFormat, va_list args );
 int ca_replace_printf_handler ( caPrintfFunc *PFUNC );</pre>
 
 <h4>Description</h4>
@@ -3552,7 +3537,7 @@ default handler uses fprintf to send messages to 'stderr'.</p>
 <dl>
   <dt><code>PFUNC</code></dt>
     <dd>The address of a user supplied call back handler to be invoked when CA
-      prints diagnostic messages. Installing a nil pointer will cause the
+      prints diagnostic messages. Installing a nill pointer will cause the
       default call back handler to be reinstalled.</dd>
 </dl>
 
@@ -3571,8 +3556,9 @@ SEVCHK ( status, "failed to install my printf handler" );</pre>
 
 <h3><code><a name="ca_replace">ca_replace_access_rights_event()</a></code></h3>
 <pre>#include &lt;cadef.h&gt;
-typedef void ( *pCallBack )( struct access_rights_handler_args );
-int ca_replace_access_rights_event ( chid CHAN, pCallBack PFUNC );</pre>
+typedef void ( caEventCallBackFunc )(struct access_rights_handler_args);
+int ca_replace_access_rights_event ( chid CHAN,
+        caEventCallBackFunc PFUNC );</pre>
 
 <h4>Description</h4>
 
@@ -3598,7 +3584,7 @@ specified channel.</p>
 </dl>
 <dl>
   <dt><code>PFUNC</code></dt>
-    <dd>Address of user supplied call back function. A nil pointer uninstalls
+    <dd>Address of user supplied call back function. A nill pointer uninstalls
       the current handler. The following arguments are passed <em>by value</em>
       to the supplied callback handler. 
       <pre>typedef struct ca_access_rights {
@@ -3941,12 +3927,12 @@ prints diagnostics to standard out.</p>
 
 <h4>Examples</h4>
 <pre>void ca_test_event (); 
-status = ca_add_event ( type, chid, ca_test_event, NULL, NULL ); 
+status = ca_create_subscription ( type, chid, ca_test_event, NULL, NULL ); 
 SEVCHK ( status, .... );</pre>
 
 <h4>See Also</h4>
 
-<p><a href="#ca_add_event">ca_add_event</a>()</p>
+<p><a href="#ca_add_event">ca_create_subscription</a>()</p>
 
 <h3><code><a name="ca_sg_create">ca_sg_create()</a></code></h3>
 <pre>#include &lt;cadef.h&gt;
@@ -4029,7 +4015,7 @@ SEVCHK ( status, Sync group delete failed );</pre>
 
 <h3><code><a name="ca_sg_block">ca_sg_block()</a></code></h3>
 <pre>#include &lt;cadef.h&gt;
-int ca_sg_block ( CA_SYNC_GID GID, double timeout );</pre>
+int ca_sg_block ( CA_SYNC_GID GID, double TIMEOUT );</pre>
 
 <h4>Description</h4>
 
@@ -4050,13 +4036,16 @@ access background activity while it is waiting.</p>
 
 <h4>Arguments</h4>
 <dl>
-  <dt>GID</dt>
+  <dt><code>GID</code></dt>
     <dd>Identifier of the synchronous group.</dd>
+  <dt><code>TIMEOUT</code></dt>
+    <dd>The duration to block in this routine in seconds. A timeout of zero
+      seconds blocks forever.</dd>
 </dl>
 
 <h4>Examples</h4>
 <pre>CA_SYNC_GID gid;
-status = ca_sg_block(gid);
+status = ca_sg_block(gid, 0.0);
 SEVCHK(status, Sync group block failed);</pre>
 
 <h4>Returns</h4>
@@ -4267,8 +4256,8 @@ reissued.</p>
 
 <h3><code><a name="ca_client_status">ca_client_status()</a></code></h3>
 <pre>int ca_client_status ( unsigned level );
-int ca_context_status ( struct ca_client_context *, 
-       unsigned level );</pre>
+int ca_context_status ( struct ca_client_context *CONTEXT, 
+       unsigned LEVEL );</pre>
 
 <h4>Description</h4>
 
@@ -4279,7 +4268,7 @@ ca_client_status() prints information about the calling threads CA context.</p>
 <h4>Arguments</h4>
 <dl>
   <dt><code>CONTEXT</code></dt>
-    <dd>A pointer to the CA context to join with.</dd>
+    <dd>A pointer to the CA context to examine.</dd>
   <dt><code>LEVEL</code></dt>
     <dd>The interest level. Increasing level produces increasing detail.</dd>
 </dl>
@@ -4289,7 +4278,7 @@ ca_client_status() prints information about the calling threads CA context.</p>
 
 <h4>Description</h4>
 
-<p>Returns a pointer to the current thread's CA context. If none then nil is
+<p>Returns a pointer to the current thread's CA context. If none then nill is
 returned.</p>
 
 <h4>See Also</h4>
@@ -4322,12 +4311,11 @@ preemptively from more than one thread.</p>
 
 <h4>Returns</h4>
 
-<p>ECA_ISATTACHED - already attached to a CA context</p>
+<p>ECA_NORMAL - Normal successful completion</p>
 
-<p>ECA_NOTTHREADED - the specified context is non-preemptive and therefore does
-not allow other threads to join</p>
+<p>ECA_NOTTHREADED - Context is not preemptive so cannot be joined</p>
 
-<p>ECA_ISATTACHED - the current thread is already attached to a CA context</p>
+<p>ECA_ISATTACHED - Thread already attached to a CA context</p>
 
 <h4>See Also</h4>
 

src/ca/Makefile

@@ -91,14 +91,19 @@ PROD_LIBS = ca Com
 # needed when its an object library build
 PROD_SYS_LIBS_WIN32 = ws2_32 advapi32 user32
 
-PROD_HOST += caRepeater catime acctst caConnTest casw caEventRate
-OBJS_IOC += catime acctst caConnTest casw caEventRate acctstRegister
+PROD_DEFAULT += caRepeater catime acctst caConnTest casw caEventRate
+PROD_vxWorks = -nil-
+PROD_RTEMS = -nil-
+PROD_iOS = -nil-
+
+OBJS_vxWorks = catime acctst caConnTest casw caEventRate acctstRegister
+
 caRepeater_SRCS = caRepeater.cpp
-catime_SRCS = catimeMain.c catime.c 
-acctst_SRCS = acctstMain.c acctst.c 
+catime_SRCS = catimeMain.c catime.c
+acctst_SRCS = acctstMain.c acctst.c
 caEventRate_SRCS = caEventRateMain.cpp caEventRate.cpp
 casw_SRCS = casw.cpp
-caConnTest_SRCS = caConnTestMain.cpp caConnTest.cpp 
+caConnTest_SRCS = caConnTestMain.cpp caConnTest.cpp
 
 casw_SYS_LIBS_solaris = socket
 

src/ca/access.cpp

@@ -376,15 +376,35 @@ int epicsShareAPI ca_create_channel (
 int epicsShareAPI ca_clear_channel ( chid pChan )
 {
     ca_client_context & cac = pChan->getClientCtx ();
-    epicsGuard < epicsMutex > guard ( cac.mutex );
-    try {
-        pChan->eliminateExcessiveSendBacklog ( guard );
+    {
+        epicsGuard < epicsMutex > guard ( cac.mutex );
+        try {
+            pChan->eliminateExcessiveSendBacklog ( guard );
+        }
+        catch ( cacChannel::notConnected & ) {
+            // intentionally ignored
+        }
     }
-    catch ( cacChannel::notConnected & ) {
-        // intentionally ignored
-    }
-    pChan->destructor ( guard );
+    if ( cac.pCallbackGuard.get() &&
+            cac.createdByThread == epicsThreadGetIdSelf () ) {
+        epicsGuard < epicsMutex > guard ( cac.mutex );
+        pChan->destructor ( *cac.pCallbackGuard.get(), guard );
     cac.oldChannelNotifyFreeList.release ( pChan );
+    }
+    else {
+        //
+        // we will definately stall out here if all of the
+        // following are true
+        //
+        // o user creates non-preemtive mode client library context
+        // o user doesnt periodically call a ca function
+        // o user calls this function from an auxiillary thread
+        //
+        CallbackGuard cbGuard ( cac.cbMutex );
+        epicsGuard < epicsMutex > guard ( cac.mutex );
+        pChan->destructor ( *cac.pCallbackGuard.get(), guard );
+        cac.oldChannelNotifyFreeList.release ( pChan );
+    }
     return ECA_NORMAL;
 }
 
@@ -433,7 +453,7 @@ chid epicsShareAPI ca_evid_to_chid ( evid pMon )
 }
 
 // extern "C"
-int epicsShareAPI ca_pend ( ca_real timeout, int early ) // X aCC 361
+int epicsShareAPI ca_pend ( ca_real timeout, int early )
 {
     if ( early ) {
         return ca_pend_io ( timeout );
@@ -516,7 +536,7 @@ int epicsShareAPI ca_flush_io ()
 /*
  *  CA_TEST_IO ()
  */
-int epicsShareAPI ca_test_io () // X aCC 361
+int epicsShareAPI ca_test_io ()
 {
     ca_client_context *pcac;
     int caStatus = fetchClientContext ( &pcac );
@@ -551,7 +571,7 @@ void epicsShareAPI ca_signal ( long ca_status, const char *message )
  * (if they call this routine again).
  */
 // extern "C"
-const char * epicsShareAPI ca_message ( long ca_status ) // X aCC 361
+const char * epicsShareAPI ca_message ( long ca_status )
 {
     unsigned msgNo = CA_EXTRACT_MSG_NO ( ca_status );
 

src/ca/acctst.c

@@ -13,6 +13,7 @@
  * Authors:
  * Jeff Hill
  * Murali Shankar - initial versions of verifyMultithreadSubscr
+ * Michael Abbott - initial versions of multiSubscrDestroyNoLateCallbackTest
  * 
  */
 
@@ -1328,6 +1329,159 @@ void test_sync_groups ( chid chan, unsigned interestLevel  )
     showProgressEnd ( interestLevel );
 }
 
+#define multiSubscrDestroyNoLateCallbackEventCount 500
+
+struct MultiSubscrDestroyNoLateCallbackEventData {
+    evid m_id;
+    size_t m_nCallback;
+    int m_callbackIsOk;
+    struct MultiSubscrDestroyNoLateCallbackTestData * m_pTestData;
+};
+
+struct MultiSubscrDestroyNoLateCallbackTestData {
+    const char * m_pChanName;
+    chid m_chan;
+    epicsMutexId m_mutex;
+    epicsEventId m_testDoneEvent;
+    unsigned m_interestLevel;
+    struct MultiSubscrDestroyNoLateCallbackEventData
+        m_eventData [multiSubscrDestroyNoLateCallbackEventCount];
+};
+
+static void noLateCallbackDetect ( struct event_handler_args args )
+{
+    int callbackIsOk;
+    struct MultiSubscrDestroyNoLateCallbackEventData * const pEventData = args.usr;
+    epicsMutexLockStatus lockStatus = epicsMutexLock ( pEventData->m_pTestData->m_mutex );
+    callbackIsOk = pEventData->m_callbackIsOk;
+    pEventData->m_nCallback++;
+    epicsMutexUnlock ( pEventData->m_pTestData->m_mutex );
+    verify ( lockStatus == epicsMutexLockOK );
+    verify ( callbackIsOk );
+}
+
+static void multiSubscrDestroyNoLateCallbackThread ( void * pParm ) 
+{
+    struct MultiSubscrDestroyNoLateCallbackTestData * const pTestData = 
+              ( struct MultiSubscrDestroyNoLateCallbackTestData * ) pParm;
+    unsigned i, j;
+    int status;
+
+    status = ca_context_create ( ca_enable_preemptive_callback );
+    verify ( status == ECA_NORMAL );
+
+    status = ca_create_channel ( pTestData->m_pChanName, 0, 0,
+                           CA_PRIORITY_DEFAULT, &pTestData->m_chan );
+    status = ca_pend_io ( timeoutToPendIO );
+    SEVCHK ( status, "multiSubscrDestroyLateNoCallbackTest: channel connect failed" );
+    verify ( status == ECA_NORMAL );
+
+    /*
+     * create a set of subscriptions
+     */
+    for ( i=0; i < 10000; i++ ) {
+        unsigned int priorityOfTestThread;
+        for ( j=0; j < multiSubscrDestroyNoLateCallbackEventCount; j++ ) {
+            epicsMutexLockStatus lockStatus = epicsMutexLock ( pTestData->m_mutex );
+            verify ( lockStatus == epicsMutexLockOK );
+            pTestData->m_eventData[j].m_nCallback = 0;
+            pTestData->m_eventData[j].m_callbackIsOk = TRUE;
+            pTestData->m_eventData[j].m_pTestData = pTestData;
+            epicsMutexUnlock ( pTestData->m_mutex );
+            SEVCHK ( ca_add_event ( DBR_GR_FLOAT, pTestData->m_chan, noLateCallbackDetect,
+                        &pTestData->m_eventData[j], &pTestData->m_eventData[j].m_id ) , NULL );
+        }
+        SEVCHK ( ca_flush_io(), NULL ); 
+
+        /*
+         * raise the priority of the current thread hoping to improve our 
+         * likelyhood of detecting a bug
+         */
+        priorityOfTestThread = epicsThreadGetPrioritySelf ();
+        epicsThreadSetPriority ( epicsThreadGetIdSelf(), epicsThreadPriorityHigh );
+
+
+        /*
+         * wait for the first subscription update to arrive
+         */
+        {
+            epicsMutexLockStatus lockStatus = epicsMutexLock ( pTestData->m_mutex );
+            verify ( lockStatus == epicsMutexLockOK );
+            while ( pTestData->m_eventData[0].m_nCallback == 0 ) {
+                epicsMutexUnlock ( pTestData->m_mutex );
+                epicsThreadSleep ( 50e-6 );
+                lockStatus = epicsMutexLock ( pTestData->m_mutex );
+                verify ( lockStatus == epicsMutexLockOK );
+            }
+            epicsMutexUnlock ( pTestData->m_mutex );
+        }
+        /*
+         * try to destroy all of the subscriptions at precisely the same time that
+         * their first callbacks are running
+         */
+        for ( j=0; j < multiSubscrDestroyNoLateCallbackEventCount; j++ ) {
+            epicsMutexLockStatus lockStatus;
+            SEVCHK ( ca_clear_event ( pTestData->m_eventData[j].m_id ) , NULL );
+            lockStatus = epicsMutexLock ( pTestData->m_mutex );
+            verify ( lockStatus == epicsMutexLockOK );
+            pTestData->m_eventData[j].m_callbackIsOk = FALSE;
+            epicsMutexUnlock ( pTestData->m_mutex );
+        }
+        /*
+         * return to the original priority
+         */
+        epicsThreadSetPriority ( epicsThreadGetIdSelf(), priorityOfTestThread );
+
+        if ( i % 1000 == 0 ) {
+            showProgress ( pTestData->m_interestLevel );
+        }
+    }
+
+    SEVCHK ( ca_clear_channel ( pTestData->m_chan ), NULL );
+
+    ca_context_destroy ();
+
+    epicsEventSignal ( pTestData->m_testDoneEvent );
+}
+
+/*
+ * verify that, in a preemtive callback mode client, a subscription callback never 
+ * comes after the subscription is destroyed
+ */
+static void multiSubscrDestroyNoLateCallbackTest ( const char *pName, unsigned interestLevel )
+{
+    struct MultiSubscrDestroyNoLateCallbackTestData * pTestData;
+
+    showProgressBegin ( "multiSubscrDestroyNoLateCallbackTest", interestLevel );
+
+    pTestData = calloc ( 1u, sizeof ( struct MultiSubscrDestroyNoLateCallbackTestData ) );
+    verify ( pTestData );
+    pTestData->m_mutex = epicsMutexMustCreate (); 
+    pTestData->m_testDoneEvent = epicsEventMustCreate ( epicsEventEmpty );
+    pTestData->m_pChanName = pName;
+    pTestData->m_interestLevel = interestLevel;
+    epicsThreadMustCreate (
+                      "multiSubscrDestroyNoLateCallbackTest",
+                      epicsThreadPriorityLow, 
+                      epicsThreadGetStackSize ( epicsThreadStackMedium ),
+                      multiSubscrDestroyNoLateCallbackThread,
+                      pTestData );
+
+    /*
+     * wait for test to complete
+     */
+    epicsEventMustWait ( pTestData->m_testDoneEvent );
+
+    /*
+     * cleanup
+     */
+    epicsMutexDestroy ( pTestData->m_mutex );
+    epicsEventDestroy ( pTestData->m_testDoneEvent );
+    free ( pTestData );
+
+    showProgressEnd ( interestLevel );
+}
+
 /*
  * multiSubscriptionDeleteTest
  *
@@ -3263,6 +3417,11 @@ int acctst ( const char * pName, unsigned interestLevel, unsigned channelCount,
         epicsEnvSet ( "EPICS_CA_MAX_ARRAY_BYTES", tmpString ); 
     }
 
+    /*
+     * this test creates, and then destroys, a private CA context
+     */
+    multiSubscrDestroyNoLateCallbackTest ( pName, interestLevel );
+
     status = ca_context_create ( select );
     SEVCHK ( status, NULL );
 

src/ca/bhe.cpp

@@ -332,13 +332,6 @@ void bhe::unregisterIIU (
     }
 }
 
-void * bhe::operator new ( size_t ) // X aCC 361
-{
-    // The HPUX compiler seems to require this even though no code
-    // calls it directly
-    throw std::logic_error ( "why is the compiler calling private operator new" );
-}
-
 void bhe::operator delete ( void * )
 {
     // Visual C++ .net appears to require operator delete if

src/ca/bhe.h

@@ -87,7 +87,6 @@ private:
                      const epicsTime & currentTime );
 	bhe ( const bhe & );
 	bhe & operator = ( const bhe & );
-    void * operator new ( size_t size );
     epicsShareFunc void operator delete ( void * );
 };
 

src/ca/ca_client_context.cpp

@@ -106,7 +106,7 @@ ca_client_context::ca_client_context ( bool enablePreemptiveCallback ) :
 
     {
         osiSockIoctl_t yes = true;
-        int status = socket_ioctl ( this->sock, // X aCC 392
+        int status = socket_ioctl ( this->sock,
                                     FIONBIO, & yes);
         if ( status < 0 ) {
             char sockErrBuf[64];
@@ -126,7 +126,7 @@ ca_client_context::ca_client_context ( bool enablePreemptiveCallback ) :
         memset ( (char *)&addr, 0 , sizeof ( addr ) );
         addr.ia.sin_family = AF_INET;
         addr.ia.sin_addr.s_addr = htonl ( INADDR_ANY ); 
-        addr.ia.sin_port = htons ( PORT_ANY ); // X aCC 818
+        addr.ia.sin_port = htons ( PORT_ANY );
         int status = bind (this->sock, &addr.sa, sizeof (addr) );
         if ( status < 0 ) {
             char sockErrBuf[64];
@@ -159,9 +159,9 @@ ca_client_context::ca_client_context ( bool enablePreemptiveCallback ) :
         this->localPort = htons ( tmpAddr.ia.sin_port );
     }
 
-    epics_auto_ptr < epicsGuard < epicsMutex > > pCBGuard;
+    epics_auto_ptr < CallbackGuard > pCBGuard;
     if ( ! enablePreemptiveCallback ) {
-        pCBGuard.reset ( new epicsGuard < epicsMutex > ( this->cbMutex ) );
+        pCBGuard.reset ( new CallbackGuard ( this->cbMutex ) );
     }
 
     // multiple steps ensure exception safety
@@ -277,7 +277,7 @@ int ca_client_context :: printFormated (
 }
 
 int ca_client_context :: varArgsPrintFormated ( 
-    const char *pformat, va_list args ) const // X aCC 361
+    const char *pformat, va_list args ) const
 {
     caPrintfFunc * pFunc;
     {
@@ -751,6 +751,8 @@ epicsShareFunc int epicsShareAPI ca_clear_subscription ( evid pMon )
 {
     oldChannelNotify & chan = pMon->channel ();
     ca_client_context & cac = chan.getClientCtx ();
+    // !!!! the order in which we take the mutex here prevents deadlocks
+    {
     epicsGuard < epicsMutex > guard ( cac.mutex );
     try {
         // if this stalls out on a live circuit then an exception 
@@ -761,7 +763,25 @@ epicsShareFunc int epicsShareAPI ca_clear_subscription ( evid pMon )
     catch ( cacChannel::notConnected & ) {
         // intentionally ignored
     }
-    pMon->cancel ( guard );
+    }
+    if ( cac.pCallbackGuard.get() &&
+        cac.createdByThread == epicsThreadGetIdSelf () ) {
+      epicsGuard < epicsMutex > guard ( cac.mutex );
+      pMon->cancel ( *cac.pCallbackGuard.get(), guard );
+    }
+    else {
+      //
+      // we will definately stall out here if all of the
+      // following are true
+      //
+      // o user creates non-preemtive mode client library context
+      // o user doesnt periodically call a ca function
+      // o user calls this function from an auxiillary thread
+      //
+      CallbackGuard cbGuard ( cac.cbMutex );
+      epicsGuard < epicsMutex > guard ( cac.mutex );
+      pMon->cancel ( cbGuard, guard );
+    }
     return ECA_NORMAL;
 }
 

src/ca/cac.cpp

@@ -568,7 +568,7 @@ bool cac::findOrCreateVirtCircuit (
 }
 
 void cac::transferChanToVirtCircuit ( 
-    unsigned cid, unsigned sid, // X aCC 431
+    unsigned cid, unsigned sid,
     ca_uint16_t typeCode, arrayElementCount count, 
     unsigned minorVersionNumber, const osiSockAddr & addr,
     const epicsTime & currentTime )
@@ -711,6 +711,7 @@ netReadNotifyIO & cac::readNotifyRequest (
 }
 
 bool cac::destroyIO (
+    CallbackGuard & callbackGuard,
     epicsGuard < epicsMutex > & guard, 
     const cacChannel::ioid & idIn, nciu & chan )
 {
@@ -787,7 +788,7 @@ void cac::recycleSubscription (
 netSubscription & cac::subscriptionRequest ( 
     epicsGuard < epicsMutex > & guard, 
     nciu & chan, privateInterfaceForIO & privChan,
-    unsigned type, // X aCC 361
+    unsigned type,
     arrayElementCount nElem, unsigned mask, 
     cacStateNotify & notifyIn,
     bool chanIsInstalled )
@@ -1021,7 +1022,7 @@ bool cac::readExcep ( callbackManager &, tcpiiu &,
 }
 
 bool cac::writeExcep ( 
-    callbackManager & mgr, // X aCC 431
+    callbackManager & mgr,
     tcpiiu &, const caHdrLargeArray & hdr, 
     const char * pCtx, unsigned status )
 {
@@ -1093,7 +1094,7 @@ bool cac::exceptionRespAction ( callbackManager & cbMutexIn, tcpiiu & iiu,
 }
 
 bool cac::accessRightsRespAction (
-    callbackManager & mgr, tcpiiu &, // X aCC 431
+    callbackManager & mgr, tcpiiu &,
     const epicsTime &, const caHdrLargeArray & hdr, void * /* pMsgBody */ )
 {
     epicsGuard < epicsMutex > guard ( this->mutex );
@@ -1110,7 +1111,7 @@ bool cac::accessRightsRespAction (
 }
 
 bool cac::createChannelRespAction (
-    callbackManager & mgr, tcpiiu & iiu, // X aCC 431
+    callbackManager & mgr, tcpiiu & iiu,
     const epicsTime &, const caHdrLargeArray & hdr, void * /* pMsgBody */ )
 {
     epicsGuard < epicsMutex > guard ( this->mutex );
@@ -1157,7 +1158,7 @@ bool cac::verifyAndDisconnectChan (
 }
 
 void cac::disconnectChannel (
-        epicsGuard < epicsMutex > & cbGuard, // X aCC 431
+        epicsGuard < epicsMutex > & cbGuard,
         epicsGuard < epicsMutex > & guard, nciu & chan )
 {
     guard.assertIdenticalMutex ( this->mutex );

src/ca/cac.h

@@ -55,7 +55,7 @@ class netSubscription;
 // used to control access to cac's recycle routines which
 // should only be indirectly invoked by CAC when its lock
 // is applied
-class cacRecycle {              // X aCC 655
+class cacRecycle {
 public:
     virtual void recycleReadNotifyIO ( 
         epicsGuard < epicsMutex > &, netReadNotifyIO &io ) = 0;
@@ -155,7 +155,8 @@ public:
         unsigned type, arrayElementCount nElem, unsigned mask, 
         cacStateNotify &, bool channelIsInstalled );
     bool destroyIO (
-        epicsGuard < epicsMutex > & guard, 
+        CallbackGuard & callbackGuard,
+        epicsGuard < epicsMutex > & mutualExclusionGuard,
         const cacChannel::ioid & idIn, 
         nciu & chan );
     void disconnectAllIO ( 
@@ -167,11 +168,6 @@ public:
         epicsGuard < epicsMutex > & guard,
         const cacChannel::ioid &id, unsigned level ) const;
 
-    // sync group routines
-    CASG * lookupCASG ( epicsGuard < epicsMutex > &, unsigned id );
-    void installCASG ( epicsGuard < epicsMutex > &, CASG & );
-    void uninstallCASG ( epicsGuard < epicsMutex > &, CASG & );
-
     // exception generation
     void exception ( 
         epicsGuard < epicsMutex > & cbGuard, 

src/ca/cacIO.h

@@ -69,7 +69,7 @@ typedef unsigned long arrayElementCount;
 
 // 1) this should not be passing caerr.h status to the exception callback
 // 2) needless-to-say the data should be passed here using the new data access API
-class epicsShareClass cacWriteNotify { // X aCC 655
+class epicsShareClass cacWriteNotify {
 public:
     virtual ~cacWriteNotify () = 0;
     virtual void completion ( epicsGuard < epicsMutex > & ) = 0;
@@ -82,7 +82,7 @@ public:
 
 // 1) this should not be passing caerr.h status to the exception callback
 // 2) needless-to-say the data should be passed here using the new data access API
-class epicsShareClass cacReadNotify { // X aCC 655
+class epicsShareClass cacReadNotify {
 public:
     virtual ~cacReadNotify () = 0;
     virtual void completion ( 
@@ -97,7 +97,7 @@ public:
 
 // 1) this should not be passing caerr.h status to the exception callback
 // 2) needless-to-say the data should be passed here using the new data access API
-class epicsShareClass cacStateNotify { // X aCC 655
+class epicsShareClass cacStateNotify {
 public:
     virtual ~cacStateNotify () = 0;
     virtual void current ( 
@@ -131,7 +131,7 @@ private:
     bool f_operatorConfirmationRequest:1;
 };
 
-class epicsShareClass cacChannelNotify { // X aCC 655
+class epicsShareClass cacChannelNotify {
 public:
     virtual ~cacChannelNotify () = 0;
     virtual void connectNotify ( epicsGuard < epicsMutex > & ) = 0;
@@ -152,6 +152,16 @@ public:
         unsigned type, arrayElementCount count ) = 0;
 };
 
+class CallbackGuard :
+    public epicsGuard < epicsMutex > {
+public:
+    CallbackGuard ( epicsMutex & mutex ) :
+        epicsGuard < epicsMutex > ( mutex ) {}
+private:
+    CallbackGuard ( const CallbackGuard & );
+    CallbackGuard & operator = ( const CallbackGuard & );
+};
+
 //
 // Notes
 // 1) This interface assumes that when a channel is deleted then all
@@ -174,6 +184,7 @@ public:
 
     cacChannel ( cacChannelNotify & );
     virtual void destroy (
+        CallbackGuard & callbackGuard,
         epicsGuard < epicsMutex > & mutualExclusionGuard ) = 0;
     cacChannelNotify & notify () const; // required ?????
     virtual unsigned getName (
@@ -207,7 +218,15 @@ public:
         epicsGuard < epicsMutex > &, unsigned type, 
         arrayElementCount count, unsigned mask, cacStateNotify &, 
         ioid * = 0 ) = 0;
+    // The primary mutex must be released when calling the user's
+    // callback, and therefore a finite interval exists when we are
+    // moving forward with the intent to call the users callback
+    // but the users IO could be deleted during this interval.
+    // To prevent the user's callback from being called after
+    // destroying his IO we must past a guard for the callback
+    // mutex here.
     virtual void ioCancel ( 
+        CallbackGuard & callbackGuard,
         epicsGuard < epicsMutex > & mutualExclusionGuard,
         const ioid & ) = 0;
     virtual void ioShow ( 
@@ -258,7 +277,7 @@ private:
 	cacChannel & operator = ( const cacChannel & );
 };
 
-class epicsShareClass cacContext { // X aCC 655
+class epicsShareClass cacContext {
 public:
     virtual ~cacContext ();
     virtual cacChannel & createChannel ( 
@@ -277,7 +296,7 @@ public:
         epicsGuard < epicsMutex > &, unsigned level ) const = 0;
 };
 
-class epicsShareClass cacContextNotify { // X aCC 655
+class epicsShareClass cacContextNotify {
 public:
     virtual ~cacContextNotify () = 0;
     virtual cacContext & createNetworkContext ( 
@@ -297,7 +316,7 @@ public:
 // **** Lock Hierarchy ****
 // callbackControl must be taken before mutualExclusion if both are held at
 // the same time
-class epicsShareClass cacService { // X aCC 655
+class epicsShareClass cacService {
 public:
     virtual ~cacService () = 0;
     virtual cacContext & contextCreate ( 

src/ca/casw.cpp

@@ -131,7 +131,7 @@ int main ( int argc, char ** argv )
     }
 
     osiSockIoctl_t yes = true;
-    status = socket_ioctl ( sock, FIONBIO, &yes ); // X aCC 392
+    status = socket_ioctl ( sock, FIONBIO, &yes );
     if ( status < 0 ) {
         char sockErrBuf[64];
         epicsSocketConvertErrnoToString ( 
@@ -166,7 +166,7 @@ int main ( int argc, char ** argv )
     }
 
     osiSockIoctl_t no = false;
-    status = socket_ioctl ( sock, FIONBIO, &no ); // X aCC 392
+    status = socket_ioctl ( sock, FIONBIO, &no );
     if ( status < 0 ) {
         char sockErrBuf[64];
         epicsSocketConvertErrnoToString ( 

src/ca/comBuf.h

@@ -44,7 +44,7 @@ public:
     virtual void release ( void * ) = 0; 
 };
 
-class wireSendAdapter { // X aCC 655
+class wireSendAdapter {
 public:
     virtual unsigned sendBytes ( const void * pBuf, 
         unsigned nBytesInBuf, 
@@ -65,7 +65,7 @@ struct statusWireIO {
     swioCircuitState circuitState;
 };
 
-class wireRecvAdapter { // X aCC 655
+class wireRecvAdapter {
 public:
     virtual void recvBytes ( void * pBuf, 
         unsigned nBytesInBuf, statusWireIO & ) = 0;
@@ -114,7 +114,6 @@ private:
     unsigned nextWriteIndex;
     unsigned nextReadIndex;
     epicsUInt8 buf [ comBufSize ];
-    void * operator new ( size_t size );
     void operator delete ( void * );
     template < class T >
     bool push ( const T * ); // disabled

src/ca/comQueRecv.cpp

@@ -155,7 +155,7 @@ epicsUInt32 comQueRecv::multiBufferPopUInt32 ()
         unsigned byte3 = this->popUInt8();
         unsigned byte4 = this->popUInt8();
         tmp = static_cast <epicsUInt32>
-            ( ( byte1 << 24u ) | ( byte2 << 16u ) | //X aCC 392
+            ( ( byte1 << 24u ) | ( byte2 << 16u ) |
               ( byte3 << 8u ) | byte4 );
     }
     else {

src/ca/comQueSend.cpp

@@ -368,7 +368,7 @@ void comQueSend::insertRequestWithPayLoad (
         // the above checks verify that the total size
         // is lest that 0xffffffff
         size = static_cast < ca_uint32_t > 
-            ( dbr_size_n ( dataType, nElem ) ); // X aCC 392
+            ( dbr_size_n ( dataType, nElem ) );
         payloadSize = CA_MESSAGE_ALIGN ( size );
         this->insertRequestHeader ( request, payloadSize, 
             static_cast <ca_uint16_t> ( dataType ), 

src/ca/disconnectGovernorTimer.cpp

@@ -65,7 +65,7 @@ void disconnectGovernorTimer::shutdown (
 }
 
 epicsTimerNotify::expireStatus disconnectGovernorTimer::expire ( 
-    const epicsTime & /* currentTime */ ) // X aCC 361
+    const epicsTime & /* currentTime */ )
 {
     epicsGuard < epicsMutex > guard ( this->mutex );
     while ( nciu * pChan = chanList.get () ) {

src/ca/disconnectGovernorTimer.h

@@ -43,7 +43,7 @@
 #include "caProto.h"
 #include "netiiu.h"
 
-class disconnectGovernorNotify { // X aCC 655
+class disconnectGovernorNotify {
 public:
     virtual ~disconnectGovernorNotify () = 0;
     virtual void govExpireNotify ( 

src/ca/getCallback.cpp

@@ -90,13 +90,6 @@ void getCallback::exception (
     }
 }
 
-void * getCallback::operator new ( size_t ) // X aCC 361
-{
-    // The HPUX compiler seems to require this even though no code
-    // calls it directly
-    throw std::logic_error ( "why is the compiler calling private operator new" );
-}
-
 void getCallback::operator delete ( void * )
 {
     // Visual C++ .net appears to require operator delete if

src/ca/getCopy.cpp

@@ -105,13 +105,6 @@ void getCopy::show ( unsigned level ) const
     }
 }
 
-void * getCopy::operator new ( size_t ) // X aCC 361
-{
-    // The HPUX compiler seems to require this even though no code
-    // calls it directly
-    throw std::logic_error ( "why is the compiler calling private operator new" );
-}
-
 void getCopy::operator delete ( void * )
 {
     // Visual C++ .net appears to require operator delete if

src/ca/iocinf.cpp

@@ -22,12 +22,12 @@
 
 #include <ctype.h>
 #include <string.h>
-#include <stdio.h>
 #include <stdlib.h>
 #include <stddef.h>
 
 #include "envDefs.h"
 #include "epicsAssert.h"
+#include "epicsStdioRedirect.h"
 #include "errlog.h"
 #include "osiWireFormat.h"
 
@@ -133,7 +133,7 @@ extern "C" void epicsShareAPI removeDuplicateAddresses
 
         if ( pNode->addr.sa.sa_family == AF_INET ) {
 
-            pTmpNode = (osiSockAddrNode *) ellFirst (pDestList);    // X aCC 749
+            pTmpNode = (osiSockAddrNode *) ellFirst (pDestList);
             while ( pTmpNode ) {
                 if (pTmpNode->addr.sa.sa_family == AF_INET) {
                     if ( pNode->addr.ia.sin_addr.s_addr == pTmpNode->addr.ia.sin_addr.s_addr && 
@@ -149,7 +149,7 @@ extern "C" void epicsShareAPI removeDuplicateAddresses
                         break;
                     }
                 }
-                pTmpNode = (osiSockAddrNode *) ellNext (&pTmpNode->node); // X aCC 749
+                pTmpNode = (osiSockAddrNode *) ellNext (&pTmpNode->node);
             }
             if (pNode) {
                 ellAdd (pDestList, &pNode->node);
@@ -168,12 +168,12 @@ static void  forcePort ( ELLLIST *pList, unsigned short port )
 {
     osiSockAddrNode *pNode;
 
-    pNode  = ( osiSockAddrNode * ) ellFirst ( pList );          // X aCC 749
+    pNode  = ( osiSockAddrNode * ) ellFirst ( pList );
     while ( pNode ) {
         if ( pNode->addr.sa.sa_family == AF_INET ) {
             pNode->addr.ia.sin_port = htons ( port );
         }
-        pNode = ( osiSockAddrNode * ) ellNext ( &pNode->node ); // X aCC 749
+        pNode = ( osiSockAddrNode * ) ellNext ( &pNode->node );
     }
 }
 
@@ -192,9 +192,9 @@ extern "C" void epicsShareAPI configureChannelAccessAddressList
     /*
      * dont load the list twice
      */
-    assert ( ellCount (pList) == 0 ); // X aCC 392
+    assert ( ellCount (pList) == 0 );
 
-    ellInit ( &tmpList );             // X aCC 392
+    ellInit ( &tmpList );
 
     /*
      * Check to see if the user has disabled
@@ -217,12 +217,12 @@ extern "C" void epicsShareAPI configureChannelAccessAddressList
     if (yes) {
 		ELLLIST bcastList;
         osiSockAddr addr;
-		ellInit ( &bcastList ); // X aCC 392
+		ellInit ( &bcastList );
         addr.ia.sin_family = AF_UNSPEC;
         osiSockDiscoverBroadcastAddresses ( &bcastList, sock, &addr );
         forcePort ( &bcastList, port );
 		removeDuplicateAddresses ( &tmpList, &bcastList, 1 );
-        if ( ellCount ( &tmpList ) == 0 ) { // X aCC 392
+        if ( ellCount ( &tmpList ) == 0 ) {
             osiSockAddrNode *pNewNode;
             pNewNode = (osiSockAddrNode *) calloc ( 1, sizeof (*pNewNode) );
             if ( pNewNode ) {
@@ -254,11 +254,11 @@ extern "C" void epicsShareAPI printChannelAccessAddressList ( const ELLLIST *pLi
     osiSockAddrNode *pNode;
 
     ::printf ( "Channel Access Address List\n" );
-    pNode = (osiSockAddrNode *) ellFirst ( pList );           // X aCC 749
+    pNode = (osiSockAddrNode *) ellFirst ( pList );
     while (pNode) {
         char buf[64];
         ipAddrToA ( &pNode->addr.ia, buf, sizeof ( buf ) );
         ::printf ( "%s\n", buf );
-        pNode = (osiSockAddrNode *) ellNext ( &pNode->node ); // X aCC 749
+        pNode = (osiSockAddrNode *) ellNext ( &pNode->node );
     }
 }

src/ca/msgForMultiplyDefinedPV.cpp

@@ -73,13 +73,6 @@ void msgForMultiplyDefinedPV::operator delete ( void *pCadaver,
 }
 #endif
 
-void * msgForMultiplyDefinedPV::operator new ( size_t ) // X aCC 361
-{
-    // The HPUX compiler seems to require this even though no code
-    // calls it directly
-    throw std::logic_error ( "why is the compiler calling private operator new" );
-}
-
 void msgForMultiplyDefinedPV::operator delete ( void * )
 {
     // Visual C++ .net appears to require operator delete if

src/ca/msgForMultiplyDefinedPV.h

@@ -39,7 +39,7 @@
 #   define epicsExportSharedSymbols
 #endif
 
-class callbackForMultiplyDefinedPV { // X aCC 655
+class callbackForMultiplyDefinedPV {
 public:
     virtual ~callbackForMultiplyDefinedPV () = 0;
     virtual void pvMultiplyDefinedNotify ( 
@@ -64,7 +64,6 @@ private:
     void transactionComplete ( const char * pHostName );
 	msgForMultiplyDefinedPV ( const msgForMultiplyDefinedPV & );
 	msgForMultiplyDefinedPV & operator = ( const msgForMultiplyDefinedPV & );
-    void * operator new ( size_t size );
     void operator delete ( void * );
 };
 

src/ca/nciu.cpp

@@ -76,29 +76,24 @@ nciu::~nciu ()
 // channels are created by the user, and only destroyed by the user
 // using this routine
 void nciu::destroy (
-    epicsGuard < epicsMutex > & guard )
+    CallbackGuard & callbackGuard,
+    epicsGuard < epicsMutex > & mutualExcusionGuard )
 {    
     while ( baseNMIU * pNetIO = this->eventq.first () ) {
-        bool success = this->cacCtx.destroyIO ( guard, pNetIO->getId (), *this );
+        bool success = this->cacCtx.destroyIO ( callbackGuard, mutualExcusionGuard,
+                                                    pNetIO->getId (), *this );
         assert ( success );
     }
     
     // if the claim reply has not returned yet then we will issue
     // the clear channel request to the server when the claim reply
     // arrives and there is no matching nciu in the client
-    if ( this->channelNode::isInstalledInServer ( guard ) ) {
-        this->getPIIU(guard)->clearChannelRequest ( 
-            guard, this->sid, this->id );
+    if ( this->channelNode::isInstalledInServer ( mutualExcusionGuard ) ) {
+        this->getPIIU(mutualExcusionGuard)->clearChannelRequest (
+                        mutualExcusionGuard, this->sid, this->id );
     }
-    this->piiu->uninstallChan ( guard, *this );
-    this->cacCtx.destroyChannel ( guard, *this );
-}
-
-void * nciu::operator new ( size_t ) // X aCC 361
-{
-    // The HPUX compiler seems to require this even though no code
-    // calls it directly
-    throw std::logic_error ( "why is the compiler calling private operator new" );
+    this->piiu->uninstallChan ( mutualExcusionGuard, *this );
+    this->cacCtx.destroyChannel ( mutualExcusionGuard, *this );
 }
 
 void nciu::operator delete ( void * )
@@ -387,9 +382,12 @@ void nciu::subscribe (
 }
 
 void nciu::ioCancel ( 
-    epicsGuard < epicsMutex > & guard, const ioid & idIn )
+    CallbackGuard & callbackGuard,
+    epicsGuard < epicsMutex > & mutualExclusionGuard,
+    const ioid & idIn )
 {
-    this->cacCtx.destroyIO ( guard, idIn, *this );
+    this->cacCtx.destroyIO ( callbackGuard,
+          mutualExclusionGuard, idIn, *this );
 }
 
 void nciu::ioShow ( 

src/ca/nciu.h

@@ -121,7 +121,7 @@ private:
     friend class disconnectGovernorTimer;
 };
 
-class privateInterfaceForIO { // X aCC 655
+class privateInterfaceForIO {
 public:
     virtual void ioCompletionNotify ( 
         epicsGuard < epicsMutex > &, class baseNMIU & ) = 0;
@@ -220,6 +220,7 @@ private:
     ca_uint16_t typeCode;
     ca_uint8_t priority; 
     virtual void destroy (
+        CallbackGuard & callbackGuard,
         epicsGuard < epicsMutex > & mutualExclusionGuard );
     void initiateConnect (
         epicsGuard < epicsMutex > & );
@@ -243,7 +244,15 @@ private:
         epicsGuard < epicsMutex > & guard, 
         unsigned type, arrayElementCount nElem, 
         unsigned mask, cacStateNotify &notify, ioid * );
+    // The primary mutex must be released when calling the user's
+    // callback, and therefore a finite interval exists when we are
+    // moving forward with the intent to call the users callback
+    // but the users IO could be deleted during this interval.
+    // To prevent the user's callback from being called after
+    // destroying his IO we must past a guard for the callback
+    // mutex here.
     virtual void ioCancel ( 
+        CallbackGuard & callbackGuard,
         epicsGuard < epicsMutex > & mutualExclusionGuard,
         const ioid & );
     void ioShow ( 
@@ -270,7 +279,6 @@ private:
         epicsGuard < epicsMutex > & guard ) const throw ();
 	nciu ( const nciu & );
 	nciu & operator = ( const nciu & );
-    void * operator new ( size_t );
     void operator delete ( void * );
 };
 

src/ca/netIO.h

@@ -42,7 +42,7 @@
 
 class privateInterfaceForIO;
 
-class baseNMIU : public tsDLNode < baseNMIU >, // X aCC 655
+class baseNMIU : public tsDLNode < baseNMIU >,
         public chronIntIdRes < baseNMIU > {
 public:
     virtual void destroy ( 
@@ -106,7 +106,6 @@ private:
     const unsigned mask;
     bool subscribed;
     class netSubscription * isSubscription ();
-    void * operator new ( size_t );
     void operator delete ( void * );
     void * operator new ( size_t, 
         tsFreeList < class netSubscription, 1024, epicsMutexNOOP > & );
@@ -147,7 +146,6 @@ protected:
 private:
     cacReadNotify & notify;
     class privateInterfaceForIO & privateChanForIO;
-    void * operator new ( size_t );
     void operator delete ( void * );
     void * operator new ( size_t, 
         tsFreeList < class netReadNotifyIO, 1024, epicsMutexNOOP > & );
@@ -190,7 +188,6 @@ protected:
 private:
     cacWriteNotify & notify;
     privateInterfaceForIO & privateChanForIO;
-    void * operator new ( size_t );
     void operator delete ( void * );
     void * operator new ( size_t, 
         tsFreeList < class netWriteNotifyIO, 1024, epicsMutexNOOP > & );
@@ -237,12 +234,12 @@ inline netSubscription * netSubscription::factory (
     class privateInterfaceForIO & chan, unsigned type, arrayElementCount count, 
     unsigned mask, cacStateNotify &notify )
 {
-    return new ( freeList ) netSubscription ( chan, type, // X aCC 930
+    return new ( freeList ) netSubscription ( chan, type,
                                 count, mask, notify );
 }
 
 inline arrayElementCount netSubscription::getCount (
-    epicsGuard < epicsMutex > & guard, bool allow_zero ) const // X aCC 361
+    epicsGuard < epicsMutex > & guard, bool allow_zero ) const
 {
     //guard.assertIdenticalMutex ( this->mutex );
     arrayElementCount nativeCount = this->privateChanForIO.nativeElementCount ( guard );
@@ -268,7 +265,7 @@ inline netReadNotifyIO * netReadNotifyIO::factory (
     tsFreeList < class netReadNotifyIO, 1024, epicsMutexNOOP > & freeList, 
     privateInterfaceForIO & ioComplNotifIntf, cacReadNotify & notify )
 {
-    return new ( freeList ) netReadNotifyIO ( ioComplNotifIntf, notify ); // X aCC 930
+    return new ( freeList ) netReadNotifyIO ( ioComplNotifIntf, notify );
 }
 
 inline void * netReadNotifyIO::operator new ( size_t size, 
@@ -289,7 +286,7 @@ inline netWriteNotifyIO * netWriteNotifyIO::factory (
     tsFreeList < class netWriteNotifyIO, 1024, epicsMutexNOOP > & freeList, 
     privateInterfaceForIO & ioComplNotifyIntf, cacWriteNotify & notify )
 {
-    return new ( freeList ) netWriteNotifyIO ( ioComplNotifyIntf, notify ); // X aCC 930
+    return new ( freeList ) netWriteNotifyIO ( ioComplNotifyIntf, notify );
 }
 
 inline void * netWriteNotifyIO::operator new ( size_t size, 

src/ca/netReadNotifyIO.cpp

@@ -119,13 +119,6 @@ void netReadNotifyIO::forceSubscriptionUpdate (
 {
 }
 
-void * netReadNotifyIO::operator new ( size_t ) // X aCC 361
-{
-    // The HPUX compiler seems to require this even though no code
-    // calls it directly
-    throw std::logic_error ( "why is the compiler calling private operator new" );
-}
-
 void netReadNotifyIO::operator delete ( void * )
 {
     // Visual C++ .net appears to require operator delete if

src/ca/netSubscription.cpp

@@ -170,13 +170,6 @@ void netSubscription::forceSubscriptionUpdate (
         guard, chan, *this );
 }
 
-void * netSubscription::operator new ( size_t ) // X aCC 361
-{
-    // The HPUX compiler seems to require this even though no code
-    // calls it directly
-    throw std::logic_error ( "why is the compiler calling private operator new" );
-}
-
 void netSubscription::operator delete ( void * )
 {
     // Visual C++ .net appears to require operator delete if

src/ca/netWriteNotifyIO.cpp

@@ -117,14 +117,6 @@ void netWriteNotifyIO::forceSubscriptionUpdate (
 {
 }
 
-void * netWriteNotifyIO::operator new ( size_t ) // X aCC 361
-{
-    // The HPUX compiler seems to require this even though no code
-    // calls it directly
-    throw std::logic_error ( 
-        "why is the compiler calling private operator new" );
-}
-
 void netWriteNotifyIO::operator delete ( void * )
 {
     // Visual C++ .net appears to require operator delete if

src/ca/netiiu.h

@@ -35,7 +35,7 @@ union osiSockAddr;
 class cac;
 class nciu;
 
-class netiiu { // X aCC 655
+class netiiu {
 public:
     virtual ~netiiu () = 0;
     virtual unsigned getHostName ( 

src/ca/oldAccess.h

@@ -53,7 +53,8 @@ public:
         const char * pName, caCh * pConnCallBackIn, 
         void * pPrivateIn, capri priority );
     void destructor ( 
-        epicsGuard < epicsMutex > & guard );
+        CallbackGuard & cbGuard,
+        epicsGuard < epicsMutex > & mutexGuard );
 
     // legacy C API
     friend unsigned epicsShareAPI ca_get_host_name ( 
@@ -122,6 +123,7 @@ public:
         unsigned type, arrayElementCount count, const void *pValue, 
         cacWriteNotify &, cacChannel::ioid *pId = 0 );
     void ioCancel ( 
+        CallbackGuard & callbackGuard,
         epicsGuard < epicsMutex > & mutualExclusionGuard, 
         const cacChannel::ioid & );
     void ioShow ( 
@@ -162,7 +164,6 @@ private:
         unsigned type, arrayElementCount count );
 	oldChannelNotify ( const oldChannelNotify & );
 	oldChannelNotify & operator = ( const oldChannelNotify & );
-    void * operator new ( size_t size );
     void operator delete ( void * );
 };
 
@@ -195,7 +196,6 @@ private:
         const char *pContext, unsigned type, arrayElementCount count );
 	getCopy ( const getCopy & );
 	getCopy & operator = ( const getCopy & );
-    void * operator new ( size_t size );
     void operator delete ( void * );
 };
 
@@ -221,7 +221,6 @@ private:
         const char * pContext, unsigned type, arrayElementCount count );
 	getCallback ( const getCallback & );
 	getCallback & operator = ( const getCallback & );
-    void * operator new ( size_t size );
     void operator delete ( void * );
 };
 
@@ -245,7 +244,6 @@ private:
         unsigned type, arrayElementCount count );
 	putCallback ( const putCallback & );
 	putCallback & operator = ( const putCallback & );
-    void * operator new ( size_t size );
     void operator delete ( void * );
 };
 
@@ -259,8 +257,16 @@ public:
         evid * );
     ~oldSubscription ();
     oldChannelNotify & channel () const;
+    // The primary mutex must be released when calling the user's
+    // callback, and therefore a finite interval exists when we are
+    // moving forward with the intent to call the users callback
+    // but the users IO could be deleted during this interval.
+    // To prevent the user's callback from being called after
+    // destroying his IO we must past a guard for the callback
+    // mutex here.
     void cancel ( 
-        epicsGuard < epicsMutex > & guard );
+        CallbackGuard & callbackGuard,
+        epicsGuard < epicsMutex > & mutualExclusionGuard );
     void * operator new ( size_t size, 
         tsFreeList < struct oldSubscription, 1024, epicsMutexNOOP > & );
     epicsPlacementDeleteOperator (( void *, 
@@ -278,7 +284,6 @@ private:
         const char *pContext, unsigned type, arrayElementCount count );
 	oldSubscription ( const oldSubscription & );
 	oldSubscription & operator = ( const oldSubscription & );
-    void * operator new ( size_t size );
     void operator delete ( void * );
 };
 
@@ -341,6 +346,8 @@ public:
     void destroySubscription ( epicsGuard < epicsMutex > &, oldSubscription & );
     epicsMutex & mutexRef () const;
 
+    template < class T >
+    void whenThereIsAnExceptionDestroySyncGroupIO ( epicsGuard < epicsMutex > &, T & );
 
     // legacy C API    
     friend int epicsShareAPI ca_create_channel (
@@ -368,6 +375,17 @@ public:
     friend int epicsShareAPI ca_sg_block ( const CA_SYNC_GID gid, ca_real timeout );
     friend int epicsShareAPI ca_sg_reset ( const CA_SYNC_GID gid );
     friend int epicsShareAPI ca_sg_test ( const CA_SYNC_GID gid );
+    friend int epicsShareAPI ca_sg_array_get ( const CA_SYNC_GID gid,
+                              chtype type, arrayElementCount count,
+                              chid pChan, void *pValue );
+    friend int epicsShareAPI ca_sg_array_put ( const CA_SYNC_GID gid,
+                              chtype type, arrayElementCount count,
+                              chid pChan, const void *pValue );
+    friend int ca_sync_group_destroy ( CallbackGuard & cbGuard,
+                                 epicsGuard < epicsMutex > & guard,
+                                ca_client_context & cac, const CA_SYNC_GID gid );
+    friend void sync_group_reset ( ca_client_context & client, 
+                                                  CASG & sg );
 
     // exceptions
     class noSocket {};
@@ -384,7 +402,7 @@ private:
     epicsEvent ioDone;
     epicsEvent callbackThreadActivityComplete;
     epicsThreadId createdByThread;
-    epics_auto_ptr < epicsGuard < epicsMutex > > pCallbackGuard;
+    epics_auto_ptr < CallbackGuard > pCallbackGuard;
     epics_auto_ptr < cacContext > pServiceContext;
     caExceptionHandler * ca_exception_func;
     void * ca_exception_arg;
@@ -444,10 +462,11 @@ inline void oldChannelNotify::initiateConnect (
 }
 
 inline void oldChannelNotify::ioCancel (    
-    epicsGuard < epicsMutex > & guard, 
+    CallbackGuard & callbackGuard,
+    epicsGuard < epicsMutex > & mutualExclusionGuard,
     const cacChannel::ioid & id )
 {
-    this->io.ioCancel ( guard, id );
+    this->io.ioCancel ( callbackGuard, mutualExclusionGuard, id );
 }
 
 inline void oldChannelNotify::ioShow ( 
@@ -492,9 +511,10 @@ inline void oldSubscription::operator delete ( void *pCadaver,
 #endif
 
 inline void oldSubscription::cancel ( 
-    epicsGuard < epicsMutex > & guard ) 
+    CallbackGuard & callbackGuard,
+    epicsGuard < epicsMutex > & mutualExclusionGuard )
 {
-    this->chan.ioCancel ( guard, this->id );
+    this->chan.ioCancel ( callbackGuard, mutualExclusionGuard, this->id );
 }
 
 inline oldChannelNotify & oldSubscription::channel () const
@@ -560,5 +580,32 @@ inline unsigned ca_client_context::sequenceNumberOfOutstandingIO (
     // perhaps on SMP systems THERE should be lock/unlock around this
     return this->ioSeqNo;
 }
+
+template < class T >
+void ca_client_context :: whenThereIsAnExceptionDestroySyncGroupIO ( 
+                            epicsGuard < epicsMutex > & guard, T & io )
+{
+    if ( this->pCallbackGuard.get() &&
+        this->createdByThread == epicsThreadGetIdSelf () ) {
+        io.destroy ( *this->pCallbackGuard.get(), guard );
+    }
+    else {
+        // dont reverse the lock hierarchy
+        epicsGuardRelease < epicsMutex > guardRelease ();
+        {
+            //
+            // we will definately stall out here if all of the
+            // following are true
+            //
+            // o user creates non-preemtive mode client library context
+            // o user doesnt periodically call a ca function
+            // o user calls this function from an auxiillary thread
+            //
+            CallbackGuard cbGuard ( this->cbMutex );
+            epicsGuard < epicsMutex > guard ( this->mutex );
+            io.destroy ( cbGuard, guard );
+        }
+    }
+}
         
 #endif // ifndef oldAccessh

src/ca/oldChannelNotify.cpp

@@ -65,14 +65,15 @@ oldChannelNotify::~oldChannelNotify ()
 }
 
 void  oldChannelNotify::destructor (
-    epicsGuard < epicsMutex > & guard )
+    CallbackGuard & cbGuard,
+    epicsGuard < epicsMutex > & mutexGuard )
 {
-    guard.assertIdenticalMutex ( this->cacCtx.mutexRef () );
-    this->io.destroy ( guard );
+    mutexGuard.assertIdenticalMutex ( this->cacCtx.mutexRef () );
+    this->io.destroy ( cbGuard, mutexGuard );
     // no need to worry about a connect preempting here because
     // the io (the nciu) has been destroyed above
     if ( this->pConnCallBack == 0 && ! this->currentlyConnected ) {
-        this->cacCtx.decrementOutstandingIO ( guard, this->ioSeqNo );
+        this->cacCtx.decrementOutstandingIO ( mutexGuard, this->ioSeqNo );
     }
     this->~oldChannelNotify ();
 }
@@ -159,13 +160,6 @@ void oldChannelNotify::writeException (
         __FILE__, __LINE__, *this, type, count, CA_OP_PUT );
 }
 
-void * oldChannelNotify::operator new ( size_t ) // X aCC 361
-{
-    // The HPUX compiler seems to require this even though no code
-    // calls it directly
-    throw std::logic_error ( "why is the compiler calling private operator new" );
-}
-
 void oldChannelNotify::operator delete ( void * )
 {
     // Visual C++ .net appears to require operator delete if
@@ -638,7 +632,7 @@ arrayElementCount epicsShareAPI ca_element_count ( chid pChan )
 /*
  * ca_state ()
  */
-enum channel_state epicsShareAPI ca_state ( chid pChan ) // X aCC 361
+enum channel_state epicsShareAPI ca_state ( chid pChan )
 {
     epicsGuard < epicsMutex > guard ( pChan->cacCtx.mutexRef () );
     if ( pChan->io.connected ( guard ) ) {

src/ca/putCallback.cpp

@@ -90,13 +90,6 @@ void putCallback::exception (
     }
 }
 
-void * putCallback::operator new ( size_t ) // X aCC 361
-{
-    // The HPUX compiler seems to require this even though no code
-    // calls it directly
-    throw std::logic_error ( "why is the compiler calling private operator new" );
-}
-
 void putCallback::operator delete ( void * )
 {
     // Visual C++ .net appears to require operator delete if

src/ca/repeater.cpp

@@ -178,7 +178,7 @@ bool repeaterClient::connect ()
     return true;
 }
 
-bool repeaterClient::sendConfirm () // X aCC 361
+bool repeaterClient::sendConfirm ()
 {
     int status;
 
@@ -204,7 +204,7 @@ bool repeaterClient::sendConfirm () // X aCC 361
     }
 }
 
-bool repeaterClient::sendMessage ( const void *pBuf, unsigned bufSize ) // X aCC 361
+bool repeaterClient::sendMessage ( const void *pBuf, unsigned bufSize )
 {
     int status;
 
@@ -245,13 +245,6 @@ repeaterClient::~repeaterClient ()
 #endif
 }
 
-void * repeaterClient::operator new ( size_t ) // X aCC 361
-{
-    // The HPUX compiler seems to require this even though no code
-    // calls it directly
-    throw std::logic_error ( "why is the compiler calling private operator new" );
-}
-
 void repeaterClient::operator delete ( void * )
 { 
     // Visual C++ .net appears to require operator delete if
@@ -304,7 +297,7 @@ inline bool repeaterClient::identicalPort ( const osiSockAddr &fromIn )
     return false;
 }
 
-bool repeaterClient::verify ()  // X aCC 361
+bool repeaterClient::verify ()
 {
     SOCKET tmpSock;
     bool success = makeSocket ( this->port (), false, & tmpSock );

src/ca/repeaterClient.h

@@ -64,7 +64,6 @@ private:
     osiSockAddr from;
     SOCKET sock;
     unsigned short port () const;
-    void * operator new ( size_t size );
     void operator delete ( void * );
 };
 

src/ca/repeaterSubscribeTimer.cpp

@@ -64,7 +64,7 @@ void repeaterSubscribeTimer::shutdown (
 }
 
 epicsTimerNotify::expireStatus repeaterSubscribeTimer::
-    expire ( const epicsTime & /* currentTime */ )  // X aCC 361
+    expire ( const epicsTime & /* currentTime */ )
 {
     static const unsigned nTriesToMsg = 50;
     if ( this->attempts > nTriesToMsg && ! this->once ) {

src/ca/repeaterSubscribeTimer.h

@@ -43,7 +43,7 @@
 class epicsMutex;
 class cacContextNotify;
 
-class repeaterTimerNotify { // X aCC 655
+class repeaterTimerNotify {
 public:
     virtual ~repeaterTimerNotify () = 0;
     virtual void repeaterRegistrationMessage ( 

src/ca/searchTimer.cpp

@@ -124,7 +124,7 @@ void searchTimer::moveChannels (
 // searchTimer::expire ()
 //
 epicsTimerNotify::expireStatus searchTimer::expire ( 
-    const epicsTime & currentTime ) // X aCC 361
+    const epicsTime & currentTime )
 {
     epicsGuard < epicsMutex > guard ( this->mutex );
 

src/ca/searchTimer.h

@@ -43,7 +43,7 @@
 #include "caProto.h"
 #include "netiiu.h"
 
-class searchTimerNotify { // X aCC 655
+class searchTimerNotify {
 public:
     virtual ~searchTimerNotify () = 0;
     virtual void boostChannel ( 

src/ca/sgAutoPtr.h

@@ -29,8 +29,7 @@
 template < class T >
 class sgAutoPtr {
 public:
-    sgAutoPtr ( epicsGuard < epicsMutex > &, 
-        struct CASG &, tsDLList < syncGroupNotify > & );
+    sgAutoPtr ( epicsGuard < epicsMutex > &, struct CASG & );
     ~sgAutoPtr ();
     sgAutoPtr < T > & operator = ( T * );
     T * operator -> ();
@@ -38,7 +37,6 @@ public:
     T * get ();
     T * release ();
 private:
-    tsDLList < syncGroupNotify > & list;
     T * pNotify;
     struct CASG & sg;
     epicsGuard < epicsMutex > & guard;
@@ -47,9 +45,8 @@ private:
 
 template < class T >
 inline sgAutoPtr < T > :: sgAutoPtr ( 
-    epicsGuard < epicsMutex > & guardIn, 
-    struct CASG & sgIn, tsDLList < syncGroupNotify > & listIn  ) : 
-    list ( listIn ), pNotify ( 0 ), sg ( sgIn ), guard ( guardIn )
+    epicsGuard < epicsMutex > & guardIn, struct CASG & sgIn ) : 
+    pNotify ( 0 ), sg ( sgIn ), guard ( guardIn )
 {
 }
 
@@ -57,8 +54,9 @@ template < class T >
 inline sgAutoPtr < T > :: ~sgAutoPtr () 
 {
     if ( this->pNotify ) {
-        list.remove ( *this->pNotify );
-        pNotify->destroy ( this->guard, this->sg );
+        this->sg.ioPendingList.remove ( *this->pNotify );
+        this->sg.client.
+            whenThereIsAnExceptionDestroySyncGroupIO ( this->guard, *this->pNotify );
     }
 }
 
@@ -66,11 +64,12 @@ template < class T >
 inline sgAutoPtr < T > & sgAutoPtr < T > :: operator = ( T * pNotifyIn )
 {
     if ( this->pNotify ) {
-        list.remove ( *this->pNotify );
-        pNotify->destroy ( this->guard, this->sg );
+        this->sg.ioPendingList.remove ( *this->pNotify );
+        this->sg.client.
+            whenThereIsAnExceptionDestroySyncGroupIO ( this->guard, *this->pNotify );
     }
     this->pNotify = pNotifyIn;
-    list.add ( *this->pNotify );
+    this->sg.ioPendingList.add ( *this->pNotify );
     return *this;
 }
 

src/ca/syncGroup.h

@@ -46,29 +46,17 @@
 
 static const unsigned CASG_MAGIC = 0xFAB4CAFE;
 
-// used to control access to CASG's recycle routines which
-// should only be indirectly invoked by CASG when its lock
-// is applied
-class casgRecycle {             // X aCC 655
-public:
-    virtual void recycleSyncGroupWriteNotify ( 
-        epicsGuard < epicsMutex > &, class syncGroupWriteNotify & io ) = 0;
-    virtual void recycleSyncGroupReadNotify ( 
-        epicsGuard < epicsMutex > &, class syncGroupReadNotify & io ) = 0;
-protected:
-    virtual ~casgRecycle ();
-};
-
 class syncGroupNotify : public tsDLNode < syncGroupNotify > {
 public:
     syncGroupNotify ();
     virtual void destroy (  
-        epicsGuard < epicsMutex > & guard, 
-        casgRecycle & ) = 0;
+        CallbackGuard & cbGuard,
+        epicsGuard < epicsMutex > & guard ) = 0;
     virtual bool ioPending (  
         epicsGuard < epicsMutex > & guard ) = 0;
     virtual void cancel (
-        epicsGuard < epicsMutex > & guard ) = 0;
+        CallbackGuard & cbGuard,
+        epicsGuard < epicsMutex > & mutualExclusionGuard ) = 0;
     virtual void show ( 
         epicsGuard < epicsMutex > &, 
         unsigned level ) const = 0;
@@ -78,33 +66,38 @@ protected:
 	syncGroupNotify & operator = ( const syncGroupNotify & );
 };
 
+struct CASG;
+
 class syncGroupReadNotify : public syncGroupNotify, public cacReadNotify {
 public:
+    typedef void ( CASG :: * PRecycleFunc ) 
+        ( epicsGuard < epicsMutex > &, syncGroupReadNotify & );
     static syncGroupReadNotify * factory ( 
         tsFreeList < class syncGroupReadNotify, 128, epicsMutexNOOP > &, 
-        struct CASG &, chid, void *pValueIn );
+        CASG &, PRecycleFunc, chid, void *pValueIn );
     void destroy (  
-        epicsGuard < epicsMutex > & guard, 
-        casgRecycle & );
+        CallbackGuard & cbGuard,
+        epicsGuard < epicsMutex > & guard );
     bool ioPending (  
         epicsGuard < epicsMutex > & guard );
     void begin (  epicsGuard < epicsMutex > &, 
         unsigned type, arrayElementCount count );
     void cancel (
+        CallbackGuard & cbGuard,
         epicsGuard < epicsMutex > & guard );
     void show (  epicsGuard < epicsMutex > &, unsigned level ) const;
 protected:
-    syncGroupReadNotify ( struct CASG & sgIn, chid, void * pValueIn );
+    syncGroupReadNotify ( CASG & sgIn, PRecycleFunc, chid, void * pValueIn );
     virtual ~syncGroupReadNotify ();
 private:
     chid chan;
-    struct CASG & sg;
+    PRecycleFunc pRecycleFunc;
+    CASG & sg;
     void * pValue;
     const unsigned magic;
     cacChannel::ioid id;
     bool idIsValid;
     bool ioComplete;
-    void * operator new ( size_t );
     void operator delete ( void * );
     void * operator new ( size_t, 
         tsFreeList < class syncGroupReadNotify, 128, epicsMutexNOOP > & );
@@ -122,30 +115,33 @@ private:
 
 class syncGroupWriteNotify : public syncGroupNotify, public cacWriteNotify {
 public:
+    typedef void ( CASG :: * PRecycleFunc ) 
+        ( epicsGuard < epicsMutex > &, syncGroupWriteNotify & );
     static syncGroupWriteNotify * factory ( 
         tsFreeList < class syncGroupWriteNotify, 128, epicsMutexNOOP > &, 
-        struct CASG &, chid );
+        CASG &, PRecycleFunc, chid );
     void destroy (  
-        epicsGuard < epicsMutex > & guard, 
-        casgRecycle & );
+        CallbackGuard & cbGuard,
+        epicsGuard < epicsMutex > & guard );
     bool ioPending (  
         epicsGuard < epicsMutex > & guard );
     void begin (  epicsGuard < epicsMutex > &, unsigned type, 
         arrayElementCount count, const void * pValueIn );
     void cancel (
+        CallbackGuard & cbGuard,
         epicsGuard < epicsMutex > & guard );
     void show (  epicsGuard < epicsMutex > &, unsigned level ) const;
 protected:
-    syncGroupWriteNotify  ( struct CASG &, chid );
+    syncGroupWriteNotify  ( struct CASG &, PRecycleFunc, chid );
     virtual ~syncGroupWriteNotify (); // allocate only from pool
 private:
     chid chan;
-    struct CASG & sg;
+    PRecycleFunc pRecycleFunc;
+    CASG & sg;
     const unsigned magic;
     cacChannel::ioid id;
     bool idIsValid;
     bool ioComplete;
-    void * operator new ( size_t );
     void operator delete ( void * );
     void * operator new ( size_t, 
         tsFreeList < class syncGroupWriteNotify, 128, epicsMutexNOOP > & );
@@ -163,17 +159,19 @@ struct ca_client_context;
 
 template < class T > class sgAutoPtr;
 
-struct CASG : public chronIntIdRes < CASG >, private casgRecycle {
+struct CASG : public chronIntIdRes < CASG > {
 public:
     CASG ( epicsGuard < epicsMutex > &, ca_client_context & cacIn );
     void destructor ( 
+        CallbackGuard &,
         epicsGuard < epicsMutex > & guard );
     bool ioComplete ( 
+        CallbackGuard &,
         epicsGuard < epicsMutex > & guard );
     bool verify ( epicsGuard < epicsMutex > & ) const;
     int block ( epicsGuard < epicsMutex > * pcbGuard, 
         epicsGuard < epicsMutex > & guard, double timeout );
-    void reset ( epicsGuard < epicsMutex > & guard );
+    void reset ( CallbackGuard &, epicsGuard < epicsMutex > & );
     void show ( epicsGuard < epicsMutex > &, unsigned level ) const;
     void show ( unsigned level ) const;
     void get ( epicsGuard < epicsMutex > &, chid pChan, 
@@ -194,6 +192,7 @@ public:
         tsFreeList < struct CASG, 128, epicsMutexNOOP  > & );
     epicsPlacementDeleteOperator (( void *, 
         tsFreeList < struct CASG, 128, epicsMutexNOOP > & ))
+
 private:
     tsDLList < syncGroupNotify > ioPendingList;
     tsDLList < syncGroupNotify > ioCompletedList;
@@ -202,20 +201,21 @@ private:
     unsigned magic;
     tsFreeList < class syncGroupReadNotify, 128, epicsMutexNOOP > freeListReadOP;
     tsFreeList < class syncGroupWriteNotify, 128, epicsMutexNOOP > freeListWriteOP;
-    void recycleSyncGroupWriteNotify (  
-        epicsGuard < epicsMutex > &, syncGroupWriteNotify & io );
-    void recycleSyncGroupReadNotify (  
-        epicsGuard < epicsMutex > &, syncGroupReadNotify & io );
 
     void destroyPendingIO ( 
+        CallbackGuard & cbGuard,
         epicsGuard < epicsMutex > & guard );
     void destroyCompletedIO ( 
+        CallbackGuard & cbGuard,
         epicsGuard < epicsMutex > & guard );
+    void recycleReadNotifyIO ( epicsGuard < epicsMutex > &, 
+                                syncGroupReadNotify & );
+    void recycleWriteNotifyIO ( epicsGuard < epicsMutex > &, 
+                                syncGroupWriteNotify & );
 
 	CASG ( const CASG & );
 	CASG & operator = ( const CASG & );
 
-    void * operator new ( size_t size );
     void operator delete ( void * );
 
     ~CASG ();

src/ca/syncGroupReadNotify.cpp

@@ -27,8 +27,10 @@
 #include "oldAccess.h"
 
 syncGroupReadNotify::syncGroupReadNotify ( 
-    CASG & sgIn, chid pChan, void * pValueIn ) :
-    chan ( pChan ), sg ( sgIn ), pValue ( pValueIn ), 
+    CASG & sgIn, PRecycleFunc pRecycleFuncIn,
+    chid pChan, void * pValueIn ) :
+    chan ( pChan ), pRecycleFunc ( pRecycleFuncIn ), 
+    sg ( sgIn ), pValue ( pValueIn ),
     magic ( CASG_MAGIC ), id ( 0u ), 
     idIsValid ( false ), ioComplete ( false )
 {
@@ -46,27 +48,30 @@ void syncGroupReadNotify::begin (
 }
 
 void syncGroupReadNotify::cancel ( 
-    epicsGuard < epicsMutex > & guard )
+    CallbackGuard & callbackGuard,
+    epicsGuard < epicsMutex > & mutualExcusionGuard )
 {
     if ( this->idIsValid ) {
-        this->chan->ioCancel ( guard, this->id );
+        this->chan->ioCancel ( callbackGuard, mutualExcusionGuard, this->id );
         this->idIsValid = false;
     }
 }
 
 syncGroupReadNotify * syncGroupReadNotify::factory ( 
     tsFreeList < class syncGroupReadNotify, 128, epicsMutexNOOP > & freeList, 
-    struct CASG & sg, chid chan, void * pValueIn )
+    struct CASG & sg, PRecycleFunc pRecycleFunc, chid chan, void * pValueIn )
 {
-    return new ( freeList ) // X aCC 930
-        syncGroupReadNotify ( sg, chan, pValueIn );
+    return new ( freeList )
+        syncGroupReadNotify ( sg, pRecycleFunc, chan, pValueIn );
 }
 
 void syncGroupReadNotify::destroy ( 
-    epicsGuard < epicsMutex > & guard, casgRecycle & recycle )
+    CallbackGuard &,
+    epicsGuard < epicsMutex > & guard )
 {
+    CASG & sgRef ( this->sg );
     this->~syncGroupReadNotify ();
-    recycle.recycleSyncGroupReadNotify ( guard, *this );
+    ( sgRef.*pRecycleFunc ) ( guard, *this );
 }
 
 syncGroupReadNotify::~syncGroupReadNotify ()
@@ -122,13 +127,6 @@ void syncGroupReadNotify::show (
     }
 }
 
-void * syncGroupReadNotify::operator new ( size_t ) // X aCC 361
-{
-    // The HPUX compiler seems to require this even though no code
-    // calls it directly
-    throw std::logic_error ( "why is the compiler calling private operator new" );
-}
-
 void syncGroupReadNotify::operator delete ( void * )
 {
     // Visual C++ .net appears to require operator delete if

src/ca/syncGroupWriteNotify.cpp

@@ -26,8 +26,10 @@
 #include "syncGroup.h"
 #include "oldAccess.h"
 
-syncGroupWriteNotify::syncGroupWriteNotify ( CASG & sgIn, chid pChan ) :
-    chan ( pChan ), sg ( sgIn ), magic ( CASG_MAGIC ), 
+syncGroupWriteNotify::syncGroupWriteNotify ( CASG & sgIn, 
+                      PRecycleFunc pRecycleFuncIn, chid pChan ) :
+    chan ( pChan ), pRecycleFunc ( pRecycleFuncIn ),
+    sg ( sgIn ), magic ( CASG_MAGIC ),
         id ( 0u ), idIsValid ( false ), ioComplete ( false )
 {
 }
@@ -45,26 +47,29 @@ void syncGroupWriteNotify::begin (
 }
 
 void syncGroupWriteNotify::cancel ( 
-    epicsGuard < epicsMutex > & guard )
+    CallbackGuard & callbackGuard,
+    epicsGuard < epicsMutex > & mutualExcusionGuard )
 {
     if ( this->idIsValid ) {
-        this->chan->ioCancel ( guard, this->id );
+        this->chan->ioCancel ( callbackGuard, mutualExcusionGuard, this->id );
         this->idIsValid = false;
     }
 }
 
 syncGroupWriteNotify * syncGroupWriteNotify::factory ( 
     tsFreeList < class syncGroupWriteNotify, 128, epicsMutexNOOP > &freeList, 
-    struct CASG & sg, chid chan )
+    struct CASG & sg, PRecycleFunc pRecycleFunc, chid chan )
 {
-    return new ( freeList ) syncGroupWriteNotify ( sg, chan );
+    return new ( freeList ) syncGroupWriteNotify ( sg, pRecycleFunc, chan );
 }
 
 void syncGroupWriteNotify::destroy ( 
-    epicsGuard < epicsMutex > & guard, casgRecycle & recycle )
+    CallbackGuard &,
+    epicsGuard < epicsMutex > & guard )
 {
+    CASG & sgRef ( this->sg );
     this->~syncGroupWriteNotify ();
-    recycle.recycleSyncGroupWriteNotify ( guard, *this );
+    ( sgRef.*pRecycleFunc ) ( guard, *this );
 }
 
 syncGroupWriteNotify::~syncGroupWriteNotify ()
@@ -112,13 +117,6 @@ void syncGroupWriteNotify::show (
     }
 }
 
-void * syncGroupWriteNotify::operator new ( size_t ) // X aCC 361
-{
-    // The HPUX compiler seems to require this even though no code
-    // calls it directly
-    throw std::logic_error ( "why is the compiler calling private operator new" );
-}
-
 void syncGroupWriteNotify::operator delete ( void * )
 {
     // Visual C++ .net appears to require operator delete if

src/ca/syncgrp.cpp

@@ -23,7 +23,7 @@
 /*
  * ca_sg_create()
  */
-extern "C" int epicsShareAPI ca_sg_create ( CA_SYNC_GID * pgid ) // X aCC 361
+extern "C" int epicsShareAPI ca_sg_create ( CA_SYNC_GID * pgid )
 {
     ca_client_context * pcac;
     int caStatus;
@@ -48,6 +48,22 @@ extern "C" int epicsShareAPI ca_sg_create ( CA_SYNC_GID * pgid ) // X aCC 361
     }
 }
 
+int ca_sync_group_destroy ( CallbackGuard & cbGuard, epicsGuard < epicsMutex > & guard,
+                                ca_client_context & cac, const CA_SYNC_GID gid )
+{
+    int caStatus;
+    CASG * pcasg = cac.lookupCASG ( guard, gid );
+    if ( pcasg ) {
+        pcasg->destructor ( cbGuard, guard );
+        cac.casgFreeList.release ( pcasg );
+        caStatus = ECA_NORMAL;
+    }
+    else {
+        caStatus = ECA_BADSYNCGRP;
+    }
+    return caStatus;
+}
+
 /*
  * ca_sg_delete()
  */
@@ -56,19 +72,51 @@ extern "C" int epicsShareAPI ca_sg_delete ( const CA_SYNC_GID gid )
     ca_client_context * pcac;
     int caStatus = fetchClientContext ( & pcac );
     if ( caStatus == ECA_NORMAL ) {
-        epicsGuard < epicsMutex > guard ( pcac->mutexRef() );
-        CASG * pcasg = pcac->lookupCASG ( guard, gid );
-        if ( pcasg ) {
-            pcasg->destructor ( guard );
-            pcac->casgFreeList.release ( pcasg );
+        if ( pcac->pCallbackGuard.get() &&
+            pcac->createdByThread == epicsThreadGetIdSelf () ) {
+          epicsGuard < epicsMutex > guard ( pcac->mutex );
+          caStatus = ca_sync_group_destroy ( *pcac->pCallbackGuard.get(),
+                                          guard, *pcac, gid );
         }
         else {
-            caStatus = ECA_BADSYNCGRP;
+          //
+          // we will definately stall out here if all of the
+          // following are true
+          //
+          // o user creates non-preemtive mode client library context
+          // o user doesnt periodically call a ca function
+          // o user calls this function from an auxiillary thread
+          //
+          CallbackGuard cbGuard ( pcac->cbMutex );
+          epicsGuard < epicsMutex > guard ( pcac->mutex );
+          caStatus = ca_sync_group_destroy ( cbGuard, guard, *pcac, gid );
         }
     }
     return caStatus;
 }
 
+void sync_group_reset ( ca_client_context & client, CASG & sg )
+{
+    if ( client.pCallbackGuard.get() &&
+        client.createdByThread == epicsThreadGetIdSelf () ) {
+        epicsGuard < epicsMutex > guard ( client.mutex );
+        sg.reset ( *client.pCallbackGuard.get(), guard );
+    }
+    else {  
+        //
+        // we will definately stall out here if all of the
+        // following are true
+        //
+        // o user creates non-preemtive mode client library context
+        // o user doesnt periodically call a ca function
+        // o user calls this function from an auxiillary thread
+        //
+        CallbackGuard cbGuard ( client.cbMutex );
+        epicsGuard < epicsMutex > guard ( client.mutex );
+        sg.reset ( cbGuard, guard );
+    }
+}
+
 //
 // ca_sg_block ()
 //
@@ -84,14 +132,20 @@ extern "C" int epicsShareAPI ca_sg_block (
     ca_client_context *pcac;
     int status = fetchClientContext ( &pcac );
     if ( status == ECA_NORMAL ) {
+        CASG * pcasg;
+        {
         epicsGuard < epicsMutex > guard ( pcac->mutex );
-        CASG * pcasg = pcac->lookupCASG ( guard, gid );
-        if ( ! pcasg ) {
-            status = ECA_BADSYNCGRP;
-        }
-        else {
+          pcasg = pcac->lookupCASG ( guard, gid );
+          if ( pcasg ) {
             status = pcasg->block ( 
                 pcac->pCallbackGuard.get (), guard, timeout );
+          }
+          else {
+              status = ECA_BADSYNCGRP;
+          }
+        }
+        if ( pcasg ) {
+            sync_group_reset ( *pcac, *pcasg );
         }
     }
     return status;
@@ -105,10 +159,14 @@ extern "C" int epicsShareAPI ca_sg_reset ( const CA_SYNC_GID gid )
     ca_client_context *pcac;
     int caStatus = fetchClientContext (&pcac);
     if ( caStatus == ECA_NORMAL ) {
+        CASG * pcasg;
+        {
         epicsGuard < epicsMutex > guard ( pcac->mutex );
-        CASG * pcasg = pcac->lookupCASG ( guard, gid );
+            pcasg = pcac->lookupCASG ( guard, gid );
+        }
         if ( pcasg ) {
-            pcasg->reset ( guard );
+            sync_group_reset ( *pcac, *pcasg );
+            caStatus = ECA_NORMAL;
         }
         else {
             caStatus = ECA_BADSYNCGRP;
@@ -143,7 +201,7 @@ extern "C" int epicsShareAPI ca_sg_stat ( const CA_SYNC_GID gid )
 /*
  * ca_sg_test
  */
-extern "C" int epicsShareAPI ca_sg_test ( const CA_SYNC_GID gid ) // X aCC 361
+extern "C" int epicsShareAPI ca_sg_test ( const CA_SYNC_GID gid )
 {
     ca_client_context * pcac;
     int caStatus = fetchClientContext ( &pcac );
@@ -151,7 +209,26 @@ extern "C" int epicsShareAPI ca_sg_test ( const CA_SYNC_GID gid ) // X aCC 361
         epicsGuard < epicsMutex > guard ( pcac->mutexRef() );
         CASG * pcasg = pcac->lookupCASG ( guard, gid );
         if ( pcasg ) {
-            if ( pcasg->ioComplete ( guard ) ) {
+            bool isComplete;
+            if ( pcac->pCallbackGuard.get() &&
+                pcac->createdByThread == epicsThreadGetIdSelf () ) {
+              epicsGuard < epicsMutex > guard ( pcac->mutex );
+              isComplete = pcasg->ioComplete ( *pcac->pCallbackGuard.get(), guard );
+            }
+            else {
+              //
+              // we will definately stall out here if all of the
+              // following are true
+              //
+              // o user creates non-preemtive mode client library context
+              // o user doesnt periodically call a ca function
+              // o user calls this function from an auxiillary thread
+              //
+              CallbackGuard cbGuard ( pcac->cbMutex );
+              epicsGuard < epicsMutex > guard ( pcac->mutex );
+              isComplete = pcasg->ioComplete ( cbGuard, guard );
+            }
+            if ( isComplete ) {
                 caStatus = ECA_IODONE;
             }
             else{
@@ -172,17 +249,14 @@ extern "C" int epicsShareAPI ca_sg_array_put ( const CA_SYNC_GID gid, chtype typ
     arrayElementCount count, chid pChan, const void *pValue )
 {
     ca_client_context *pcac;
-    CASG *pcasg;
-    int caStatus;
     
-    caStatus = fetchClientContext ( &pcac );
+    int caStatus = fetchClientContext ( &pcac );
     if ( caStatus != ECA_NORMAL ) {
         return caStatus;
     }
 
     epicsGuard < epicsMutex > guard ( pcac->mutexRef() );
-
-    pcasg = pcac->lookupCASG ( guard, gid );
+    CASG * const pcasg = pcac->lookupCASG ( guard, gid );
     if ( ! pcasg ) {
         return ECA_BADSYNCGRP;
     }
@@ -237,17 +311,14 @@ extern "C" int epicsShareAPI ca_sg_array_get ( const CA_SYNC_GID gid, chtype typ
     arrayElementCount count, chid pChan, void *pValue )
 {
     ca_client_context *pcac;
-    CASG *pcasg;
-    int caStatus;
 
-    caStatus = fetchClientContext ( &pcac );
+    int caStatus = fetchClientContext ( &pcac );
     if ( caStatus != ECA_NORMAL ) {
         return caStatus;
     }
 
     epicsGuard < epicsMutex > guard ( pcac->mutexRef() );
-
-    pcasg = pcac->lookupCASG ( guard, gid );
+    CASG * const pcasg = pcac->lookupCASG ( guard, gid );
     if ( ! pcasg ) {
         return ECA_BADSYNCGRP;
     }

src/ca/tcpRecvWatchdog.cpp

@@ -45,7 +45,7 @@ tcpRecvWatchdog::~tcpRecvWatchdog ()
 }
 
 epicsTimerNotify::expireStatus
-tcpRecvWatchdog::expire ( const epicsTime & /* currentTime */ ) // X aCC 361
+tcpRecvWatchdog::expire ( const epicsTime & /* currentTime */ )
 {
     epicsGuard < epicsMutex > guard ( this->mutex );
     if ( this->shuttingDown ) {

src/ca/tcpiiu.cpp

@@ -1135,7 +1135,7 @@ void tcpiiu::show ( unsigned level ) const
     }
 }
 
-bool tcpiiu::setEchoRequestPending ( epicsGuard < epicsMutex > & guard ) // X aCC 361
+bool tcpiiu::setEchoRequestPending ( epicsGuard < epicsMutex > & guard )
 {
     guard.assertIdenticalMutex ( this->mutex );
 
@@ -1275,12 +1275,9 @@ bool tcpiiu::processIncoming (
         this->msgHeaderAvailable = false;
         this->curDataBytes = 0u;
     }
-#   if defined ( __HP_aCC ) && _HP_aCC <= 033300
-        return false; // to make hpux compiler happy...
-#   endif
 }
 
-void tcpiiu::hostNameSetRequest ( epicsGuard < epicsMutex > & guard ) // X aCC 431
+void tcpiiu::hostNameSetRequest ( epicsGuard < epicsMutex > & guard )
 {
     guard.assertIdenticalMutex ( this->mutex );
 
@@ -1310,7 +1307,7 @@ void tcpiiu::hostNameSetRequest ( epicsGuard < epicsMutex > & guard ) // X aCC 4
 /*
  * tcpiiu::userNameSetRequest ()
  */
-void tcpiiu::userNameSetRequest ( epicsGuard < epicsMutex > & guard ) // X aCC 431
+void tcpiiu::userNameSetRequest ( epicsGuard < epicsMutex > & guard )
 {
     guard.assertIdenticalMutex ( this->mutex );
 
@@ -1338,7 +1335,7 @@ void tcpiiu::userNameSetRequest ( epicsGuard < epicsMutex > & guard ) // X aCC 4
 }
 
 void tcpiiu::disableFlowControlRequest ( 
-    epicsGuard < epicsMutex > & guard ) // X aCC 431
+    epicsGuard < epicsMutex > & guard )
 {
     guard.assertIdenticalMutex ( this->mutex );
 
@@ -1354,7 +1351,7 @@ void tcpiiu::disableFlowControlRequest (
 }
 
 void tcpiiu::enableFlowControlRequest ( 
-    epicsGuard < epicsMutex > & guard ) // X aCC 431
+    epicsGuard < epicsMutex > & guard )
 {
     guard.assertIdenticalMutex ( this->mutex );
 
@@ -1369,7 +1366,7 @@ void tcpiiu::enableFlowControlRequest (
     minder.commit ();
 }
 
-void tcpiiu::versionMessage ( epicsGuard < epicsMutex > & guard, // X aCC 431
+void tcpiiu::versionMessage ( epicsGuard < epicsMutex > & guard,
                              const cacChannel::priLev & priority )
 {
     guard.assertIdenticalMutex ( this->mutex );
@@ -1389,7 +1386,7 @@ void tcpiiu::versionMessage ( epicsGuard < epicsMutex > & guard, // X aCC 431
     minder.commit ();
 }
 
-void tcpiiu::echoRequest ( epicsGuard < epicsMutex > & guard ) // X aCC 431
+void tcpiiu::echoRequest ( epicsGuard < epicsMutex > & guard )
 {
     guard.assertIdenticalMutex ( this->mutex );
     
@@ -1410,7 +1407,7 @@ void tcpiiu::echoRequest ( epicsGuard < epicsMutex > & guard ) // X aCC 431
     minder.commit ();
 }
 
-void tcpiiu::writeRequest ( epicsGuard < epicsMutex > & guard, // X aCC 431
+void tcpiiu::writeRequest ( epicsGuard < epicsMutex > & guard,
     nciu &chan, unsigned type, arrayElementCount nElem, const void *pValue )
 {
     guard.assertIdenticalMutex ( this->mutex );
@@ -1425,7 +1422,7 @@ void tcpiiu::writeRequest ( epicsGuard < epicsMutex > & guard, // X aCC 431
 }
 
 
-void tcpiiu::writeNotifyRequest ( epicsGuard < epicsMutex > & guard, // X aCC 431
+void tcpiiu::writeNotifyRequest ( epicsGuard < epicsMutex > & guard,
                                  nciu &chan, netWriteNotifyIO &io, unsigned type,  
                                 arrayElementCount nElem, const void *pValue )
 {
@@ -1444,7 +1441,7 @@ void tcpiiu::writeNotifyRequest ( epicsGuard < epicsMutex > & guard, // X aCC 43
     minder.commit ();
 }
 
-void tcpiiu::readNotifyRequest ( epicsGuard < epicsMutex > & guard, // X aCC 431
+void tcpiiu::readNotifyRequest ( epicsGuard < epicsMutex > & guard,
                                nciu & chan, netReadNotifyIO & io, 
                                unsigned dataType, arrayElementCount nElem )
 {
@@ -1477,7 +1474,7 @@ void tcpiiu::readNotifyRequest ( epicsGuard < epicsMutex > & guard, // X aCC 431
 }
 
 void tcpiiu::createChannelRequest ( 
-    nciu & chan, epicsGuard < epicsMutex > & guard ) // X aCC 431
+    nciu & chan, epicsGuard < epicsMutex > & guard )
 {
     guard.assertIdenticalMutex ( this->mutex );
 
@@ -1525,7 +1522,7 @@ void tcpiiu::createChannelRequest (
     minder.commit ();
 }
 
-void tcpiiu::clearChannelRequest ( epicsGuard < epicsMutex > & guard, // X aCC 431
+void tcpiiu::clearChannelRequest ( epicsGuard < epicsMutex > & guard,
                                   ca_uint32_t sid, ca_uint32_t cid )
 {
     guard.assertIdenticalMutex ( this->mutex );
@@ -1547,7 +1544,7 @@ void tcpiiu::clearChannelRequest ( epicsGuard < epicsMutex > & guard, // X aCC 4
 // is to try again the next time that we reconnect
 //
 void tcpiiu::subscriptionRequest ( 
-    epicsGuard < epicsMutex > & guard, // X aCC 431
+    epicsGuard < epicsMutex > & guard,
     nciu & chan, netSubscription & subscr )
 {
     guard.assertIdenticalMutex ( this->mutex );
@@ -1599,7 +1596,7 @@ void tcpiiu::subscriptionRequest (
 // is to try again the next time that we reconnect
 //
 void tcpiiu::subscriptionUpdateRequest ( 
-    epicsGuard < epicsMutex > & guard, // X aCC 431
+    epicsGuard < epicsMutex > & guard,
     nciu & chan, netSubscription & subscr )
 {
     guard.assertIdenticalMutex ( this->mutex );
@@ -1634,7 +1631,7 @@ void tcpiiu::subscriptionUpdateRequest (
     minder.commit ();
 }
 
-void tcpiiu::subscriptionCancelRequest ( epicsGuard < epicsMutex > & guard, // X aCC 431
+void tcpiiu::subscriptionCancelRequest ( epicsGuard < epicsMutex > & guard,
                              nciu & chan, netSubscription & subscr )
 {
     guard.assertIdenticalMutex ( this->mutex );
@@ -2052,7 +2049,7 @@ bool tcpiiu::bytesArePendingInOS () const
     return false;
 #else
     osiSockIoctl_t bytesPending = 0; /* shut up purifys yapping */
-    int status = socket_ioctl ( this->sock, // X aCC 392
+    int status = socket_ioctl ( this->sock,
                             FIONREAD, & bytesPending );
     if ( status >= 0 ) {
         if ( bytesPending > 0 ) {

src/ca/templateInstances.cpp

@@ -78,6 +78,10 @@ template comBuf :: popStatus comBuf :: pop ( unsigned char & returnVal );
 template void WireSet ( float const &, unsigned char * );
 template void WireSet ( int const &, unsigned char * );
 template void WireSet ( short const &, unsigned char * );
+template void ca_client_context :: whenThereIsAnExceptionDestroySyncGroupIO
+    (epicsGuard < epicsMutex > &, syncGroupWriteNotify & );
+template void ca_client_context :: whenThereIsAnExceptionDestroySyncGroupIO
+    ( epicsGuard < epicsMutex > &, syncGroupReadNotify & );
 
 
 #ifdef _MSC_VER

src/ca/test_event.cpp

@@ -14,7 +14,7 @@
  *  simple stub for testing monitors
  */
 
-#include <stdio.h>
+#include "epicsStdioRedirect.h"
 
 #define epicsExportSharedSymbols
 #include "cadef.h"
@@ -78,7 +78,7 @@ extern "C" void epicsShareAPI ca_dump_dbr (
         dbr_short_t *pvalue = (dbr_short_t *)pbuffer;
         for (i = 0; i < count; i++,pvalue++){
             if(count!=1 && (i%10 == 0)) printf("\n");
-            printf("%d ",* (short *)pvalue); // X aCC 392
+            printf("%d ",* (short *)pvalue);
         }
         break;
     }
@@ -96,7 +96,7 @@ extern "C" void epicsShareAPI ca_dump_dbr (
         dbr_float_t *pvalue = (dbr_float_t *)pbuffer;
         for (i = 0; i < count; i++,pvalue++){
             if(count!=1 && (i%10 == 0)) printf("\n");
-            printf("%6.4f ",*(float *)pvalue); // X aCC 392
+            printf("%6.4f ",*(float *)pvalue);
         }
         break;
     }

src/ca/udpiiu.cpp

@@ -201,7 +201,7 @@ udpiiu::udpiiu (
     memset ( (char *)&addr, 0 , sizeof (addr) );
     addr.ia.sin_family = AF_INET;
     addr.ia.sin_addr.s_addr = htonl ( INADDR_ANY ); 
-    addr.ia.sin_port = htons ( PORT_ANY ); // X aCC 818
+    addr.ia.sin_port = htons ( PORT_ANY );
     status = bind (this->sock, &addr.sa, sizeof (addr) );
     if ( status < 0 ) {
         char sockErrBuf[64];
@@ -471,7 +471,7 @@ void epicsShareAPI caRepeaterRegistrationMessage (
     }
 
     memset ( (char *) &msg, 0, sizeof (msg) );
-    AlignedWireRef < epicsUInt16 > ( msg.m_cmmd ) = REPEATER_REGISTER; // X aCC 818
+    AlignedWireRef < epicsUInt16 > ( msg.m_cmmd ) = REPEATER_REGISTER;
     msg.m_available = saddr.ia.sin_addr.s_addr;
 
     /*

src/ca/virtualCircuit.h

@@ -335,7 +335,6 @@ private:
 
 	tcpiiu ( const tcpiiu & );
 	tcpiiu & operator = ( const tcpiiu & );
-    void * operator new ( size_t size );
     void operator delete ( void * );
 };
 
@@ -372,7 +371,7 @@ inline bool tcpiiu::ca_v49_ok (
 }
 
 inline bool tcpiiu::alive (
-    epicsGuard < epicsMutex > & ) const // X aCC 361
+    epicsGuard < epicsMutex > & ) const
 {
     return ( this->state == iiucs_connecting || 
         this->state == iiucs_connected );

src/cap5/caget.pl

@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/env perl
 
 use strict;
 

src/cap5/cainfo.pl

@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/env perl
 
 use strict;
 

src/cap5/camonitor.pl

@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/env perl
 
 use strict;
 

src/cap5/capr.pl

@@ -1,4 +1,4 @@
-#!/usr/bin/perl -w
+#!/usr/bin/env perl
 
 #######################################################################
 #

src/cap5/caput.pl

@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/env perl
 
 use strict;
 

src/cap5/perlConfig.pl

@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/env perl
 
 # This script is used to extract information about the Perl build
 # configuration, so the EPICS build system uses the same settings.

src/cas/generic/caServer.cc

@@ -3,9 +3,8 @@
 *     National Laboratory.
 * Copyright (c) 2002 The Regents of the University of California, as
 *     Operator of Los Alamos National Laboratory.
-* EPICS BASE Versions 3.13.7
-* and higher are distributed subject to a Software License Agreement found
-* in file LICENSE that is included with this distribution. 
+* EPICS BASE is distributed subject to a Software License Agreement found
+* in file LICENSE that is included with this distribution.
 \*************************************************************************/
 /*
  *      $Revision-Id$
@@ -15,8 +14,8 @@
  *              505 665 1831
  */
 
-#include "dbMapper.h"		// ait to dbr types 
-#include "gddAppTable.h"	// EPICS application type table
+#include "dbMapper.h"       // ait to dbr types 
+#include "gddAppTable.h"    // EPICS application type table
 #include "fdManager.h"
 
 #define epicsExportSharedSymbols
@@ -37,67 +36,67 @@ caServer::caServer ()
 
 caServer::~caServer()
 {
-	if (this->pCAS) {
-		delete this->pCAS;
+    if (this->pCAS) {
+        delete this->pCAS;
         this->pCAS = NULL;
-	}
+    }
 }
 
 pvExistReturn caServer::pvExistTest ( const casCtx & ctx, 
-	const caNetAddr & /* clientAddress */, const char * pPVAliasName )
+    const caNetAddr & /* clientAddress */, const char * pPVAliasName )
 {
     return this->pvExistTest ( ctx, pPVAliasName );
 }
 
 pvExistReturn caServer::pvExistTest ( const casCtx &, const char * )
 {
-	return pverDoesNotExistHere;
+    return pverDoesNotExistHere;
 }
 
 pvCreateReturn caServer::createPV ( const casCtx &, const char * )
 {
-	return S_casApp_pvNotFound;
+    return S_casApp_pvNotFound;
 }
 
 pvAttachReturn caServer::pvAttach ( const casCtx &ctx, const char *pAliasName )
 {
-	// remain backwards compatible (call deprecated routine)
-	return this->createPV ( ctx, pAliasName );
+    // remain backwards compatible (call deprecated routine)
+    return this->createPV ( ctx, pAliasName );
 }
 
-casEventMask caServer::registerEvent (const char *pName) // X aCC 361
+casEventMask caServer::registerEvent (const char *pName)
 {
-	if (this->pCAS) {
-		return this->pCAS->registerEvent(pName);
-	}
-	else {
-		casEventMask emptyMask;
-		printf("caServer:: no server internals attached\n");
-		return emptyMask;
-	}
+    if (this->pCAS) {
+        return this->pCAS->registerEvent(pName);
+    }
+    else {
+        casEventMask emptyMask;
+        printf("caServer:: no server internals attached\n");
+        return emptyMask;
+    }
 }
 
 void caServer::show(unsigned level) const
 {
-	if (this->pCAS) {
-		this->pCAS->show(level);
-	}
-	else {
-		printf("caServer:: no server internals attached\n");
-	}
+    if (this->pCAS) {
+        this->pCAS->show(level);
+    }
+    else {
+        printf("caServer:: no server internals attached\n");
+    }
 }
 
 void caServer::setDebugLevel (unsigned level)
 {
-	if (pCAS) {
-		this->pCAS->setDebugLevel(level);
-	}
-	else {
-		printf("caServer:: no server internals attached\n");
-	}
+    if (pCAS) {
+        this->pCAS->setDebugLevel(level);
+    }
+    else {
+        printf("caServer:: no server internals attached\n");
+    }
 }
 
-unsigned caServer::getDebugLevel () const // X aCC 361
+unsigned caServer::getDebugLevel () const
 {
     if (pCAS) {
         return this->pCAS->getDebugLevel();
@@ -108,7 +107,7 @@ unsigned caServer::getDebugLevel () const // X aCC 361
     }
 }
 
-casEventMask caServer::valueEventMask () const // X aCC 361
+casEventMask caServer::valueEventMask () const
 {
     if (pCAS) {
         return this->pCAS->valueEventMask();
@@ -119,7 +118,7 @@ casEventMask caServer::valueEventMask () const // X aCC 361
     }
 }
 
-casEventMask caServer::logEventMask () const // X aCC 361
+casEventMask caServer::logEventMask () const
 {
     if (pCAS) {
         return this->pCAS->logEventMask();
@@ -130,7 +129,7 @@ casEventMask caServer::logEventMask () const // X aCC 361
     }
 }
 
-casEventMask caServer::alarmEventMask () const // X aCC 361
+casEventMask caServer::alarmEventMask () const
 {
     if ( pCAS ) {
         return this->pCAS->alarmEventMask ();
@@ -141,12 +140,23 @@ casEventMask caServer::alarmEventMask () const // X aCC 361
     }
 }
 
+casEventMask caServer::propertyEventMask () const
+{
+    if (pCAS) {
+        return this->pCAS->propertyEventMask();
+    }
+    else {
+        printf("caServer:: no server internals attached\n");
+        return casEventMask();
+    }
+}
+
 class epicsTimer & caServer::createTimer ()
 {
     return fileDescriptorManager.createTimer ();
 }
 
-unsigned caServer::subscriptionEventsProcessed () const // X aCC 361
+unsigned caServer::subscriptionEventsProcessed () const
 {
     if ( pCAS ) {
         return this->pCAS->subscriptionEventsProcessed ();
@@ -156,7 +166,7 @@ unsigned caServer::subscriptionEventsProcessed () const // X aCC 361
     }
 }
 
-unsigned caServer::subscriptionEventsPosted () const // X aCC 361
+unsigned caServer::subscriptionEventsPosted () const
 {
     if ( pCAS ) {
         return this->pCAS->subscriptionEventsPosted ();

src/cas/generic/caServerI.cc

@@ -47,22 +47,23 @@ caServerI::caServerI ( caServer & tool ) :
     nEventsPosted ( 0u ),
     ioInProgressCount ( 0u )
 {
-	assert ( & adapter != NULL );
+    assert ( & adapter != NULL );
 
     // create predefined event types
     this->valueEvent = registerEvent ( "value" );
-	this->logEvent = registerEvent ( "log" );
-	this->alarmEvent = registerEvent ( "alarm" );
+    this->logEvent = registerEvent ( "log" );
+    this->alarmEvent = registerEvent ( "alarm" );
+    this->propertyEvent = registerEvent ( "property" );
 
     this->locateInterfaces ();
 
-	if (this->intfList.count()==0u) {
-		errMessage (S_cas_noInterface, 
+    if (this->intfList.count()==0u) {
+        errMessage (S_cas_noInterface, 
             "- CA server internals init unable to continue");
         throw S_cas_noInterface;
-	}
+    }
 
-	return;
+    return;
 }
 
 caServerI::~caServerI()
@@ -70,22 +71,22 @@ caServerI::~caServerI()
     delete & this->beaconAnomalyGov;
     delete & this->beaconTmr;
 
-	// delete all clients
+    // delete all clients
     while ( casStrmClient * pClient = this->clientList.get() ) {
-		delete pClient;
-	}
+        delete pClient;
+    }
 
-	casIntfOS *pIF;
-	while ( ( pIF = this->intfList.get() ) ) {
-		delete pIF;
-	}
+    casIntfOS *pIF;
+    while ( ( pIF = this->intfList.get() ) ) {
+        delete pIF;
+    }
 }
 
 void caServerI::destroyClient ( casStrmClient & client )
 {
     {
         epicsGuard < epicsMutex > locker ( this->mutex );
-	    this->clientList.remove ( client );
+        this->clientList.remove ( client );
     }
     delete & client;
 }
@@ -143,11 +144,11 @@ caStatus caServerI::attachInterface ( const caNetAddr & addrIn,
 void caServerI::sendBeacon ( ca_uint32_t beaconNo )
 {
     epicsGuard < epicsMutex > locker ( this->mutex );
-	tsDLIter < casIntfOS > iter = this->intfList.firstIter ();
-	while ( iter.valid () ) {
-		iter->sendBeacon ( beaconNo );
-		iter++;
-	}
+    tsDLIter < casIntfOS > iter = this->intfList.firstIter ();
+    while ( iter.valid () ) {
+        iter->sendBeacon ( beaconNo );
+        iter++;
+    }
 }
 
 void caServerI::generateBeaconAnomaly ()
@@ -259,11 +260,11 @@ void caServerI::casMonitorDestroy ( casMonitor & cm )
 }
 
 //
-//	caServerI::dumpMsg()
+//  caServerI::dumpMsg()
 //
-//	Debug aid - print the header part of a message.
+//  Debug aid - print the header part of a message.
 //
-//	dp arg allowed to be null
+//  dp arg allowed to be null
 //
 //
 void caServerI::dumpMsg ( const char * pHostName, const char * pUserName,

src/cas/generic/caServerI.h

@@ -44,23 +44,24 @@ caStatus convertContainerMemberToAtomic ( class gdd & dd,
          aitUint32 appType, aitUint32 elemCount );
 
 class caServerI : 
-	public caServerIO, 
-	public ioBlockedList, 
-	public casEventRegistry {
+    public caServerIO, 
+    public ioBlockedList, 
+    public casEventRegistry {
 public:
-	caServerI ( caServer &tool );
-	~caServerI ();
-	bool roomForNewChannel() const;
-	unsigned getDebugLevel() const { return debugLevel; }
-	inline void setDebugLevel ( unsigned debugLevelIn );
-	void show ( unsigned level ) const;
+    caServerI ( caServer &tool );
+    ~caServerI ();
+    bool roomForNewChannel() const;
+    unsigned getDebugLevel() const { return debugLevel; }
+    inline void setDebugLevel ( unsigned debugLevelIn );
+    void show ( unsigned level ) const;
     void destroyMonitor ( casMonitor & );
-	caServer * getAdapter ();
-	caServer * operator -> ();
-	void connectCB ( casIntfOS & );
-	casEventMask valueEventMask () const; // DBE_VALUE registerEvent("value")
-	casEventMask logEventMask () const; 	// DBE_LOG registerEvent("log") 
-	casEventMask alarmEventMask () const; // DBE_ALARM registerEvent("alarm") 
+    caServer * getAdapter ();
+    caServer * operator -> ();
+    void connectCB ( casIntfOS & );
+    casEventMask valueEventMask () const; // DBE_VALUE registerEvent("value")
+    casEventMask logEventMask () const;     // DBE_LOG registerEvent("log") 
+    casEventMask alarmEventMask () const; // DBE_ALARM registerEvent("alarm") 
+    casEventMask propertyEventMask () const; // DBE_PROPERTY registerEvent("property") 
     unsigned subscriptionEventsProcessed () const;
     void incrEventsProcessedCounter ();
     unsigned subscriptionEventsPosted () const;
@@ -82,29 +83,30 @@ public:
 private:
     clientBufMemoryManager clientBufMemMgr;
     tsFreeList < casMonitor, 1024 > casMonitorFreeList;
-	tsDLList < casStrmClient > clientList;
+    tsDLList < casStrmClient > clientList;
     tsDLList < casIntfOS > intfList;
-	mutable epicsMutex mutex;
-	mutable epicsMutex diagnosticCountersMutex;
-	caServer & adapter;
+    mutable epicsMutex mutex;
+    mutable epicsMutex diagnosticCountersMutex;
+    caServer & adapter;
     beaconTimer & beaconTmr;
     beaconAnomalyGovernor & beaconAnomalyGov;
-	unsigned debugLevel;
+    unsigned debugLevel;
     unsigned nEventsProcessed; 
     unsigned nEventsPosted; 
     unsigned ioInProgressCount;
 
     casEventMask valueEvent; // DBE_VALUE registerEvent("value")
-	casEventMask logEvent; 	// DBE_LOG registerEvent("log") 
-	casEventMask alarmEvent; // DBE_ALARM registerEvent("alarm")
+    casEventMask logEvent;  // DBE_LOG registerEvent("log")
+    casEventMask alarmEvent; // DBE_ALARM registerEvent("alarm")
+    casEventMask propertyEvent;  // DBE_PROPERTY registerEvent("property")
 
-	caStatus attachInterface ( const caNetAddr & addr, bool autoBeaconAddr,
-			bool addConfigAddr );
+    caStatus attachInterface ( const caNetAddr & addr, bool autoBeaconAddr,
+            bool addConfigAddr );
 
     void sendBeacon ( ca_uint32_t beaconNo );
 
-	caServerI ( const caServerI & );
-	caServerI & operator = ( const caServerI & );
+    caServerI ( const caServerI & );
+    caServerI & operator = ( const caServerI & );
 
     friend class beaconAnomalyGovernor;
     friend class beaconTimer;
@@ -113,17 +115,17 @@ private:
 
 inline caServer * caServerI::getAdapter()
 {
-	return & this->adapter;
+    return & this->adapter;
 }
 
 inline caServer * caServerI::operator -> ()
 {
-	return this->getAdapter();
+    return this->getAdapter();
 }
 
 inline void caServerI::setDebugLevel(unsigned debugLevelIn)
 {
-	this->debugLevel = debugLevelIn;
+    this->debugLevel = debugLevelIn;
 }
 
 inline casEventMask caServerI::valueEventMask() const
@@ -141,6 +143,11 @@ inline casEventMask caServerI::alarmEventMask() const
     return this->alarmEvent;
 }
 
+inline casEventMask caServerI::propertyEventMask() const
+{
+    return this->propertyEvent;
+}
+
 inline bool caServerI :: ioIsPending () const
 {
     return ( ioInProgressCount > 0u );