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-rw-r--r--c++/src/H5Attribute.cpp183
-rw-r--r--c++/src/H5Attribute.h3
-rw-r--r--c++/src/Makefile.am4
-rw-r--r--c++/src/Makefile.in40
4 files changed, 183 insertions, 47 deletions
diff --git a/c++/src/H5Attribute.cpp b/c++/src/H5Attribute.cpp
index c90076c..a844b77 100644
--- a/c++/src/H5Attribute.cpp
+++ b/c++/src/H5Attribute.cpp
@@ -34,6 +34,7 @@
#include "H5DataSpace.h"
#include "H5File.h"
#include "H5Attribute.h"
+#include "H5private.h" // for HDfree
#ifndef H5_NO_NAMESPACE
namespace H5 {
@@ -95,23 +96,40 @@ void Attribute::write( const DataType& mem_type, const void *buf ) const
//--------------------------------------------------------------------------
// Function: Attribute::write
///\brief This is an overloaded member function, provided for convenience.
-/// It writes a \a std::string to this attribute.
+/// It writes a \a H5std_string to this attribute.
///\param mem_type - IN: Attribute datatype (in memory)
///\param strg - IN: Data to be written
///\exception H5::AttributeIException
// Programmer Binh-Minh Ribler - Apr, 2003
//--------------------------------------------------------------------------
-void Attribute::write( const DataType& mem_type, const H5std_string& strg ) const
+void Attribute::write(const DataType& mem_type, const H5std_string& strg) const
{
- // Convert string to C-string
- const char* strg_C;
- strg_C = strg.c_str(); // strg_C refers to the contents of strg as a C-str
+ // Check if this attribute has variable-len string or fixed-len string and
+ // proceed appropriately.
+ htri_t is_variable_len = H5Tis_variable_str(mem_type.getId());
+ if (is_variable_len < 0)
+ {
+ throw AttributeIException("Attribute::write", "H5Tis_variable_str failed");
+ }
+ // Convert string to C-string
+ const char* strg_C;
+ strg_C = strg.c_str(); // strg_C refers to the contents of strg as a C-str
+ herr_t ret_value = 0;
- herr_t ret_value = H5Awrite( id, mem_type.getId(), &strg_C );
- if( ret_value < 0 )
- {
- throw AttributeIException("Attribute::write", "H5Awrite failed");
- }
+ // Pass string in differently depends on variable or fixed length
+ if (!is_variable_len)
+ {
+ ret_value = H5Awrite(id, mem_type.getId(), strg_C);
+ }
+ else
+ {
+ // passing third argument by address
+ ret_value = H5Awrite(id, mem_type.getId(), &strg_C);
+ }
+ if (ret_value < 0)
+ {
+ throw AttributeIException("Attribute::write", "H5Awrite failed");
+ }
}
//--------------------------------------------------------------------------
@@ -127,14 +145,58 @@ void Attribute::read( const DataType& mem_type, void *buf ) const
herr_t ret_value = H5Aread( id, mem_type.getId(), buf );
if( ret_value < 0 )
{
- throw AttributeIException("Attribute::read", "H5Aread failed");
+ throw AttributeIException("Attribute::read", "H5Aread failed");
}
}
//--------------------------------------------------------------------------
+// Function: Attribute::getInMemDataSize
+///\brief Gets the size in memory of the attribute's data.
+///\exception H5::AttributeIException
+// Programmer Binh-Minh Ribler - 2000
+//--------------------------------------------------------------------------
+size_t Attribute::getInMemDataSize() const
+{
+ // Get the data type of this attribute
+ hid_t mem_type_id = H5Aget_type(id);
+ if (mem_type_id <= 0)
+ {
+ throw AttributeIException("Attribute::getDataSize", "H5Aget_type failed");
+ }
+
+ // Get the data type's size
+ hid_t native_type = H5Tget_native_type(mem_type_id, H5T_DIR_DEFAULT);
+ if (native_type < 0)
+ {
+ throw AttributeIException("Attribute::read", "H5Tget_native_type failed");
+ }
+ size_t type_size = H5Tget_size(native_type);
+ if (type_size == 0)
+ {
+ throw AttributeIException("Attribute::read", "H5Tget_size failed");
+ }
+
+ // Get number of elements of the attribute
+ hid_t space_id = H5Aget_space(id);
+ if (space_id < 0)
+ {
+ throw AttributeIException("Attribute::read", "H5Aget_space failed");
+ }
+ hssize_t num_elements = H5Sget_simple_extent_npoints(space_id);
+ if (num_elements < 0)
+ {
+ throw AttributeIException("Attribute::read", "H5Sget_simple_extent_npoints failed");
+ }
+
+ // Calculate and return the size of the data
+ size_t data_size = type_size * num_elements;
+ return(data_size);
+}
+
+//--------------------------------------------------------------------------
// Function: Attribute::read
///\brief This is an overloaded member function, provided for convenience.
-/// It reads a \a std::string from this attribute.
+/// It reads a \a H5std_string from this attribute.
///\param mem_type - IN: Attribute datatype (in memory)
///\param strg - IN: Buffer for read string
///\exception H5::AttributeIException
@@ -145,31 +207,72 @@ void Attribute::read( const DataType& mem_type, void *buf ) const
// space for the buffer. Obtained the attribute size and
// allocated memory properly. - BMR
//--------------------------------------------------------------------------
-void Attribute::read( const DataType& mem_type, H5std_string& strg ) const
+void Attribute::read(const DataType& mem_type, H5std_string& strg) const
{
- // Get the attribute size and allocate temporary C-string for C API
- hsize_t attr_size = H5Aget_storage_size(id);
- if (attr_size <= 0)
- {
- throw AttributeIException("Attribute::read", "Unable to get attribute size before reading");
- }
- char* strg_C = new char [(size_t)attr_size+1];
- if (strg_C == NULL)
- {
- throw AttributeIException("Attribute::read", "Unable to allocate buffer to read the attribute");
- }
- // Call C API to get the attribute data, a string of chars
- herr_t ret_value = H5Aread(id, mem_type.getId(), &strg_C);
- if( ret_value < 0 )
- {
- throw AttributeIException("Attribute::read", "H5Aread failed");
- }
+ // Check if this attribute has variable-len string or fixed-len string and
+ // proceed appropriately.
+ htri_t is_variable_len = H5Tis_variable_str(mem_type.getId());
+ if (is_variable_len < 0)
+ {
+ throw AttributeIException("Attribute::write", "H5Tis_variable_str failed");
+ }
+
+ // Prepare and call C API to read attribute.
+ char *strg_C;
+ herr_t ret_value = 0;
+ size_t attr_size;
+ if (!is_variable_len) // only allocate for fixed-len string
+ {
+ // Get the size of the attribute's data
+ attr_size = getInMemDataSize();
+
+ if (attr_size > 0)
+ {
+ strg_C = new char [(size_t)attr_size+1];
+ if (strg_C == NULL)
+ {
+ throw AttributeIException("Attribute::read",
+ "Unable to allocate buffer to read the attribute");
+ }
+ ret_value = H5Aread(id, mem_type.getId(), strg_C);
+ }
+ else
+ HDstrcpy(strg_C, "");
+ }
+ else
+ {
+ // no allocation for variable-len string; C library will
+ ret_value = H5Aread(id, mem_type.getId(), &strg_C);
+ }
+ if( ret_value < 0 )
+ {
+ if (!is_variable_len) // only de-allocate for fixed-len string
+ delete []strg_C;
+ throw AttributeIException("Attribute::read", "H5Aread failed");
+ }
- // Get 'string' from the C char* and release resource
- strg_C[attr_size] = '\0';
- strg = strg_C;
- delete []strg_C;
+ if( ret_value < 0 )
+ {
+ if (!is_variable_len) // only de-allocate for fixed-len string
+ delete []strg_C;
+ throw AttributeIException("Attribute::read", "H5Aread failed");
+ }
+
+ // Get string from the C char* and release resource allocated locally
+ if (!is_variable_len)
+ {
+ if (strg_C != "")
+ strg_C[attr_size] = '\0';
+ strg = strg_C;
+ delete []strg_C;
+ }
+ // Get string from the C char* and release resource allocated by C API
+ else
+ {
+ strg = strg_C;
+ HDfree(strg_C);
+ }
}
//--------------------------------------------------------------------------
@@ -342,21 +445,21 @@ hid_t Attribute::getId() const
///\brief Sets the identifier of this object to a new value.
///
///\exception H5::IdComponentException when the attempt to close the HDF5
-/// object fails
+/// object fails
// Description:
-// The underlaying reference counting in the C library ensures
-// that the current valid id of this object is properly closed.
-// Then the object's id is reset to the new id.
+// The underlaying reference counting in the C library ensures
+// that the current valid id of this object is properly closed.
+// Then the object's id is reset to the new id.
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
void Attribute::p_setId(const hid_t new_id)
{
// handling references to this old id
try {
- close();
+ close();
}
catch (Exception close_error) {
- throw AttributeIException("Attribute::p_setId", close_error.getDetailMsg());
+ throw AttributeIException("Attribute::p_setId", close_error.getDetailMsg());
}
// reset object's id to the given id
id = new_id;
diff --git a/c++/src/H5Attribute.h b/c++/src/H5Attribute.h
index 9cf91ba..00a08a5 100644
--- a/c++/src/H5Attribute.h
+++ b/c++/src/H5Attribute.h
@@ -40,6 +40,9 @@ class H5_DLLCPP Attribute : public AbstractDs, public IdComponent {
// Returns the amount of storage size required for this attribute.
hsize_t getStorageSize() const;
+ // Returns the in memory size of this attribute's data.
+ size_t getInMemDataSize() const;
+
// Reads data from this attribute.
void read( const DataType& mem_type, void *buf ) const;
void read( const DataType& mem_type, H5std_string& strg ) const;
diff --git a/c++/src/Makefile.am b/c++/src/Makefile.am
index 3b1ed0d..c18b990 100644
--- a/c++/src/Makefile.am
+++ b/c++/src/Makefile.am
@@ -19,6 +19,7 @@
#
include $(top_srcdir)/config/commence.am
+include $(top_srcdir)/config/lt_vers.am
# Include src directory
INCLUDES=-I$(top_srcdir)/src
@@ -26,6 +27,9 @@ INCLUDES=-I$(top_srcdir)/src
# This is our main target
lib_LTLIBRARIES=libhdf5_cpp.la
+# Add libtool numbers to the HDF5 C++ library (from config/lt_vers.am)
+libhdf5_cpp_la_LDFLAGS= -version-info $(LT_VERS_INTERFACE):$(LT_VERS_REVISION):$(LT_VERS_AGE)
+
# Shared C++ libraries aren't universally supported.
if CXX_SHARED_CONDITIONAL
else
diff --git a/c++/src/Makefile.in b/c++/src/Makefile.in
index 9d50223..abe8590 100644
--- a/c++/src/Makefile.in
+++ b/c++/src/Makefile.in
@@ -1,4 +1,4 @@
-# Makefile.in generated by automake 1.10.1 from Makefile.am.
+# Makefile.in generated by automake 1.10.2 from Makefile.am.
# @configure_input@
# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
@@ -54,7 +54,8 @@ host_triplet = @host@
DIST_COMMON = $(include_HEADERS) $(srcdir)/Makefile.am \
$(srcdir)/Makefile.in $(srcdir)/h5c++.in \
$(top_srcdir)/config/commence.am \
- $(top_srcdir)/config/conclude.am
+ $(top_srcdir)/config/conclude.am \
+ $(top_srcdir)/config/lt_vers.am
TESTS =
subdir = c++/src
ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
@@ -83,6 +84,9 @@ am_libhdf5_cpp_la_OBJECTS = H5Exception.lo H5IdComponent.lo \
H5StrType.lo H5ArrayType.lo H5VarLenType.lo H5CompType.lo \
H5DataSet.lo H5CommonFG.lo H5Group.lo H5File.lo
libhdf5_cpp_la_OBJECTS = $(am_libhdf5_cpp_la_OBJECTS)
+libhdf5_cpp_la_LINK = $(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) \
+ $(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
+ $(CXXFLAGS) $(libhdf5_cpp_la_LDFLAGS) $(LDFLAGS) -o $@
binSCRIPT_INSTALL = $(INSTALL_SCRIPT)
SCRIPTS = $(bin_SCRIPTS)
DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)/src
@@ -353,12 +357,21 @@ TRACE = perl $(top_srcdir)/bin/trace
# *.clog are from the MPE option.
CHECK_CLEANFILES = *.chkexe *.chklog *.clog
+# Add libtool shared library version numbers to the HDF5 library
+# See libtool versioning documentation online.
+LT_VERS_INTERFACE = 6
+LT_VERS_REVISION = 29
+LT_VERS_AGE = 0
+
# Include src directory
INCLUDES = -I$(top_srcdir)/src
# This is our main target
lib_LTLIBRARIES = libhdf5_cpp.la
+# Add libtool numbers to the HDF5 C++ library (from config/lt_vers.am)
+libhdf5_cpp_la_LDFLAGS = -version-info $(LT_VERS_INTERFACE):$(LT_VERS_REVISION):$(LT_VERS_AGE)
+
# Shared C++ libraries aren't universally supported.
@CXX_SHARED_CONDITIONAL_FALSE@AM_LDFLAGS = -static
bin_SCRIPTS = h5c++
@@ -408,12 +421,12 @@ all: all-am
.SUFFIXES:
.SUFFIXES: .cpp .lo .o .obj
-$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am $(top_srcdir)/config/commence.am $(top_srcdir)/config/conclude.am $(am__configure_deps)
+$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am $(top_srcdir)/config/commence.am $(top_srcdir)/config/lt_vers.am $(top_srcdir)/config/conclude.am $(am__configure_deps)
@for dep in $?; do \
case '$(am__configure_deps)' in \
*$$dep*) \
- cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh \
- && exit 0; \
+ ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+ && { if test -f $@; then exit 0; else break; fi; }; \
exit 1;; \
esac; \
done; \
@@ -467,7 +480,7 @@ clean-libLTLIBRARIES:
rm -f "$${dir}/so_locations"; \
done
libhdf5_cpp.la: $(libhdf5_cpp_la_OBJECTS) $(libhdf5_cpp_la_DEPENDENCIES)
- $(CXXLINK) -rpath $(libdir) $(libhdf5_cpp_la_OBJECTS) $(libhdf5_cpp_la_LIBADD) $(LIBS)
+ $(libhdf5_cpp_la_LINK) -rpath $(libdir) $(libhdf5_cpp_la_OBJECTS) $(libhdf5_cpp_la_LIBADD) $(LIBS)
install-binSCRIPTS: $(bin_SCRIPTS)
@$(NORMAL_INSTALL)
test -z "$(bindir)" || $(MKDIR_P) "$(DESTDIR)$(bindir)"
@@ -570,7 +583,7 @@ ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
unique=`for i in $$list; do \
if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
done | \
- $(AWK) '{ files[$$0] = 1; nonemtpy = 1; } \
+ $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
END { if (nonempty) { for (i in files) print i; }; }'`; \
mkid -fID $$unique
tags: TAGS
@@ -762,6 +775,19 @@ uninstall-am: uninstall-binSCRIPTS uninstall-includeHEADERS \
help:
@$(top_srcdir)/bin/makehelp
+# Copyright by The HDF Group.
+# Copyright by the Board of Trustees of the University of Illinois.
+# All rights reserved.
+#
+# This file is part of HDF5. The full HDF5 copyright notice, including
+# terms governing use, modification, and redistribution, is contained in
+# the files COPYING and Copyright.html. COPYING can be found at the root
+# of the source code distribution tree; Copyright.html can be found at the
+# root level of an installed copy of the electronic HDF5 document set and
+# is linked from the top-level documents page. It can also be found at
+# http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have
+# access to either file, you may request a copy from help@hdfgroup.org.
+
# Some C++ compilers/linkers (PGI?) create a directory named "ii_files" that
# holds *.ii files, which are template entity instantiations.
# This entire directory should be cleaned.
generated by cgit v0.12 at 2025-09-18 08:04:57 (GMT)