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+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * 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. *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+#include <string>
+
+#include "H5Include.h"
+#include "H5Exception.h"
+#include "H5IdComponent.h"
+#include "H5PropList.h"
+#include "H5Location.h"
+#include "H5Object.h"
+#include "H5DcreatProp.h"
+#include "H5DxferProp.h"
+#include "H5FaccProp.h"
+#include "H5FcreatProp.h"
+#include "H5CommonFG.h"
+#include "H5DataType.h"
+#include "H5DataSpace.h"
+#include "H5AbstractDs.h"
+#include "H5File.h"
+#include "H5DataSet.h"
+#include "H5Attribute.h"
+
+#ifndef H5_NO_NAMESPACE
+namespace H5 {
+#endif
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+// userAttrOpWrpr simply interfaces between the user's function and the
+// C library function H5Aiterate2; used to resolve the different prototype
+// problem. May be moved to Iterator later.
+extern "C" herr_t userAttrOpWrpr(hid_t loc_id, const char *attr_name,
+ const H5A_info_t *ainfo, void *op_data)
+{
+ H5std_string s_attr_name = H5std_string( attr_name );
+#ifdef NO_STATIC_CAST
+ UserData4Aiterate* myData = (UserData4Aiterate *) op_data;
+#else
+ UserData4Aiterate* myData = static_cast <UserData4Aiterate *> (op_data);
+#endif
+ myData->op( *myData->location, s_attr_name, myData->opData );
+ return 0;
+}
+
+//--------------------------------------------------------------------------
+// Function: H5Location default constructor (protected)
+// Programmer Binh-Minh Ribler - 2000
+//--------------------------------------------------------------------------
+H5Location::H5Location() : IdComponent(0) {}
+
+//--------------------------------------------------------------------------
+// Function: H5Location overloaded constructor (protected)
+// Purpose Creates an H5Location object using the id of an existing HDF5
+// object.
+// Parameters object_id - IN: Id of an existing HDF5 object
+// Programmer Binh-Minh Ribler - 2000
+//--------------------------------------------------------------------------
+H5Location::H5Location(const hid_t object_id) : IdComponent(object_id) {}
+
+#endif // DOXYGEN_SHOULD_SKIP_THIS
+
+//--------------------------------------------------------------------------
+// Function: H5Location copy constructor
+///\brief Copy constructor: makes a copy of the original H5Location
+/// instance.
+///\param original - IN: H5Location instance to copy
+// Programmer Binh-Minh Ribler - 2000
+//--------------------------------------------------------------------------
+H5Location::H5Location( const H5Location& original ) : IdComponent( original ) {}
+
+//--------------------------------------------------------------------------
+// Function: H5Location::createAttribute
+///\brief Creates an attribute for a group, dataset, or named datatype.
+///\param name - IN: Name of the attribute
+///\param data_type - IN: Datatype for the attribute
+///\param data_space - IN: Dataspace for the attribute - only simple
+/// dataspaces are allowed at this time
+///\param create_plist - IN: Creation property list - default to
+/// PropList::DEFAULT
+///\return Attribute instance
+///\exception H5::AttributeIException
+///\par Description
+/// The attribute name specified in \a name must be unique.
+/// Attempting to create an attribute with the same name as an
+/// existing attribute will raise an exception, leaving the
+/// pre-existing attribute intact. To overwrite an existing
+/// attribute with a new attribute of the same name, first
+/// delete the existing one with \c H5Location::removeAttr, then
+/// recreate it with this function.
+// Programmer Binh-Minh Ribler - 2000
+//--------------------------------------------------------------------------
+Attribute H5Location::createAttribute( const char* name, const DataType& data_type, const DataSpace& data_space, const PropList& create_plist ) const
+{
+ hid_t type_id = data_type.getId();
+ hid_t space_id = data_space.getId();
+ hid_t plist_id = create_plist.getId();
+ hid_t attr_id = H5Acreate2(getId(), name, type_id, space_id, plist_id, H5P_DEFAULT );
+
+ // If the attribute id is valid, create and return the Attribute object
+ if( attr_id > 0 )
+ {
+ Attribute attr( attr_id );
+ return( attr );
+ }
+ else
+ throw AttributeIException(inMemFunc("createAttribute"), "H5Acreate2 failed");
+}
+
+//--------------------------------------------------------------------------
+// Function: H5Location::createAttribute
+///\brief This is an overloaded member function, provided for convenience.
+/// It differs from the above function in that it takes
+/// a reference to an \c H5std_string for \a name.
+// Programmer Binh-Minh Ribler - 2000
+//--------------------------------------------------------------------------
+Attribute H5Location::createAttribute( const H5std_string& name, const DataType& data_type, const DataSpace& data_space, const PropList& create_plist ) const
+{
+ return( createAttribute( name.c_str(), data_type, data_space, create_plist ));
+}
+
+//--------------------------------------------------------------------------
+// Function: H5Location::openAttribute
+///\brief Opens an attribute given its name.
+///\param name - IN: Name of the attribute
+///\return Attribute instance
+///\exception H5::AttributeIException
+// Programmer Binh-Minh Ribler - 2000
+//--------------------------------------------------------------------------
+Attribute H5Location::openAttribute( const char* name ) const
+{
+ hid_t attr_id = H5Aopen(getId(), name, H5P_DEFAULT);
+ if( attr_id > 0 )
+ {
+ Attribute attr( attr_id );
+ return( attr );
+ }
+ else
+ {
+ throw AttributeIException(inMemFunc("openAttribute"), "H5Aopen failed");
+ }
+}
+
+//--------------------------------------------------------------------------
+// Function: H5Location::openAttribute
+///\brief This is an overloaded member function, provided for convenience.
+/// It differs from the above function in that it takes
+/// a reference to an \c H5std_string for \a name.
+// Programmer Binh-Minh Ribler - 2000
+//--------------------------------------------------------------------------
+Attribute H5Location::openAttribute( const H5std_string& name ) const
+{
+ return( openAttribute( name.c_str()) );
+}
+
+//--------------------------------------------------------------------------
+// Function: H5Location::openAttribute
+///\brief Opens an attribute given its index.
+///\param idx - IN: Index of the attribute, a 0-based, non-negative integer
+///\return Attribute instance
+///\exception H5::AttributeIException
+// Programmer Binh-Minh Ribler - 2000
+//--------------------------------------------------------------------------
+Attribute H5Location::openAttribute( const unsigned int idx ) const
+{
+ hid_t attr_id = H5Aopen_by_idx(getId(), ".", H5_INDEX_CRT_ORDER,
+ H5_ITER_INC, (hsize_t)idx, H5P_DEFAULT, H5P_DEFAULT);
+ if( attr_id > 0 )
+ {
+ Attribute attr( attr_id );
+ return( attr );
+ }
+ else
+ {
+ throw AttributeIException(inMemFunc("openAttribute"), "H5Aopen_by_idx failed");
+ }
+}
+
+//--------------------------------------------------------------------------
+// Function: H5Location::iterateAttrs
+///\brief Iterates a user's function over all the attributes of an H5
+/// object, which may be a group, dataset or named datatype.
+///\param user_op - IN: User's function to operate on each attribute
+///\param _idx - IN/OUT: Starting (IN) and ending (OUT) attribute indices
+///\param op_data - IN: User's data to pass to user's operator function
+///\return Returned value of the last operator if it was non-zero, or
+/// zero if all attributes were processed
+///\exception H5::AttributeIException
+///\par Description
+/// The signature of user_op is
+/// void (*)(H5::H5Location&, H5std_string, void*).
+/// For information, please refer to the C layer Reference Manual
+/// at:
+/// http://www.hdfgroup.org/HDF5/doc/RM/RM_H5A.html#Annot-Iterate
+// Programmer Binh-Minh Ribler - 2000
+//--------------------------------------------------------------------------
+int H5Location::iterateAttrs( attr_operator_t user_op, unsigned *_idx, void *op_data )
+{
+ // store the user's function and data
+ UserData4Aiterate* userData = new UserData4Aiterate;
+ userData->opData = op_data;
+ userData->op = user_op;
+ userData->location = this;
+
+ // call the C library routine H5Aiterate2 to iterate the attributes
+ hsize_t idx = _idx ? (hsize_t)*_idx : 0;
+ int ret_value = H5Aiterate2(getId(), H5_INDEX_NAME, H5_ITER_INC, &idx,
+ userAttrOpWrpr, (void *) userData);
+
+ // release memory
+ delete userData;
+
+ if( ret_value >= 0 ) {
+ /* Pass back update index value to calling code */
+ if (_idx)
+ *_idx = (unsigned)idx;
+
+ return( ret_value );
+ }
+ else // raise exception when H5Aiterate returns a negative value
+ throw AttributeIException(inMemFunc("iterateAttrs"), "H5Aiterate2 failed");
+}
+
+//--------------------------------------------------------------------------
+// Function: H5Location::getNumAttrs
+///\brief Returns the number of attributes attached to this HDF5 object.
+///\return Number of attributes
+///\exception H5::AttributeIException
+// Programmer Binh-Minh Ribler - 2000
+//--------------------------------------------------------------------------
+int H5Location::getNumAttrs() const
+{
+ H5O_info_t oinfo; /* Object info */
+
+ if(H5Oget_info(getId(), &oinfo) < 0)
+ throw AttributeIException(inMemFunc("getNumAttrs"), "H5Oget_info failed");
+ else
+ return( (int)oinfo.num_attrs );
+}
+
+//--------------------------------------------------------------------------
+// Function: H5Location::removeAttr
+///\brief Removes the named attribute from this object.
+///\param name - IN: Name of the attribute to be removed
+///\exception H5::AttributeIException
+// Programmer Binh-Minh Ribler - 2000
+//--------------------------------------------------------------------------
+void H5Location::removeAttr( const char* name ) const
+{
+ herr_t ret_value = H5Adelete(getId(), name);
+ if( ret_value < 0 )
+ throw AttributeIException(inMemFunc("removeAttr"), "H5Adelete failed");
+}
+
+//--------------------------------------------------------------------------
+// Function: H5Location::removeAttr
+///\brief This is an overloaded member function, provided for convenience.
+/// It differs from the above function in that it takes
+/// a reference to an \c H5std_string for \a name.
+// Programmer Binh-Minh Ribler - 2000
+//--------------------------------------------------------------------------
+void H5Location::removeAttr( const H5std_string& name ) const
+{
+ removeAttr( name.c_str() );
+}
+
+//--------------------------------------------------------------------------
+// Function: H5Location::renameAttr
+///\brief Renames the named attribute from this object.
+///\param oldname - IN: Name of the attribute to be renamed
+///\param newname - IN: New name ame of the attribute
+///\exception H5::AttributeIException
+// Programmer Binh-Minh Ribler - Mar, 2005
+//--------------------------------------------------------------------------
+void H5Location::renameAttr(const char* oldname, const char* newname) const
+{
+ herr_t ret_value = H5Arename(getId(), oldname, newname);
+ if (ret_value < 0)
+ throw AttributeIException(inMemFunc("renameAttr"), "H5Arename failed");
+}
+
+//--------------------------------------------------------------------------
+// Function: H5Location::renameAttr
+///\brief This is an overloaded member function, provided for convenience.
+/// It differs from the above function in that it takes
+/// a reference to an \c H5std_string for the names.
+// Programmer Binh-Minh Ribler - Mar, 2005
+//--------------------------------------------------------------------------
+void H5Location::renameAttr(const H5std_string& oldname, const H5std_string& newname) const
+{
+ renameAttr (oldname.c_str(), newname.c_str());
+}
+
+//--------------------------------------------------------------------------
+// Function: H5Location::flush
+///\brief Flushes all buffers associated with a location to disk.
+///\param scope - IN: Specifies the scope of the flushing action,
+/// which can be either of these values:
+/// \li \c H5F_SCOPE_GLOBAL - Flushes the entire virtual file
+/// \li \c H5F_SCOPE_LOCAL - Flushes only the specified file
+///\exception H5::FileIException
+///\par Description
+/// This location is used to identify the file to be flushed.
+// Programmer Binh-Minh Ribler - 2012
+// Modification
+// Sep 2012 - BMR
+// Moved from H5File/H5Object
+//--------------------------------------------------------------------------
+void H5Location::flush(H5F_scope_t scope) const
+{
+ herr_t ret_value = H5Fflush(getId(), scope);
+ if( ret_value < 0 )
+ {
+ throw FileIException(inMemFunc("flush"), "H5Fflush failed");
+ }
+}
+
+//--------------------------------------------------------------------------
+// Function: H5Location::getFileName
+///\brief Gets the name of the file, in which this HDF5 object belongs.
+///\return File name
+///\exception H5::IdComponentException
+// Programmer Binh-Minh Ribler - Jul, 2004
+//--------------------------------------------------------------------------
+H5std_string H5Location::getFileName() const
+{
+ try {
+ return(p_get_file_name());
+ }
+ catch (IdComponentException E) {
+ throw FileIException(inMemFunc("getFileName"), E.getDetailMsg());
+ }
+}
+
+//--------------------------------------------------------------------------
+// Function: H5Location::p_reference (protected)
+// Purpose Creates a reference to an HDF5 object or a dataset region.
+// Parameters
+// name - IN: Name of the object to be referenced
+// dataspace - IN: Dataspace with selection
+// ref_type - IN: Type of reference; default to \c H5R_DATASET_REGION
+// Exception H5::IdComponentException
+// Programmer Binh-Minh Ribler - May, 2004
+//--------------------------------------------------------------------------
+void H5Location::p_reference(void* ref, const char* name, hid_t space_id, H5R_type_t ref_type) const
+{
+ herr_t ret_value = H5Rcreate(ref, getId(), name, ref_type, space_id);
+ if (ret_value < 0)
+ {
+ throw ReferenceException("", "H5Rcreate failed");
+ }
+}
+
+//--------------------------------------------------------------------------
+// Function: H5Location::reference
+///\brief Creates a reference to an HDF5 object or a dataset region.
+///\param ref - IN: Reference pointer
+///\param name - IN: Name of the object to be referenced
+///\param dataspace - IN: Dataspace with selection
+///\param ref_type - IN: Type of reference to query, valid values are:
+/// \li \c H5R_OBJECT - Reference is an object reference.
+/// \li \c H5R_DATASET_REGION - Reference is a dataset region
+/// reference. - this is the default
+///\exception H5::ReferenceException
+// Programmer Binh-Minh Ribler - May, 2004
+//--------------------------------------------------------------------------
+void H5Location::reference(void* ref, const char* name, const DataSpace& dataspace, H5R_type_t ref_type) const
+{
+ try {
+ p_reference(ref, name, dataspace.getId(), ref_type);
+ }
+ catch (ReferenceException E) {
+ throw ReferenceException("H5Location::reference", E.getDetailMsg());
+ }
+}
+
+//--------------------------------------------------------------------------
+// Function: H5Location::reference
+///\brief This is an overloaded function, provided for your convenience.
+/// It differs from the above function in that it only creates
+/// a reference to an HDF5 object, not to a dataset region.
+///\param ref - IN: Reference pointer
+///\param name - IN: Name of the object to be referenced - \c char pointer
+///\exception H5::ReferenceException
+///\par Description
+// This function passes H5R_OBJECT and -1 to the protected
+// function for it to pass to the C API H5Rcreate
+// to create a reference to the named object.
+// Programmer Binh-Minh Ribler - May, 2004
+//--------------------------------------------------------------------------
+void H5Location::reference(void* ref, const char* name) const
+{
+ try {
+ p_reference(ref, name, -1, H5R_OBJECT);
+ }
+ catch (ReferenceException E) {
+ throw ReferenceException("H5Location::reference", E.getDetailMsg());
+ }
+}
+
+//--------------------------------------------------------------------------
+// Function: H5Location::reference
+///\brief This is an overloaded function, provided for your convenience.
+/// It differs from the above function in that it takes an
+/// \c H5std_string for the object's name.
+///\param ref - IN: Reference pointer
+///\param name - IN: Name of the object to be referenced - \c H5std_string
+// Programmer Binh-Minh Ribler - May, 2004
+//--------------------------------------------------------------------------
+void H5Location::reference(void* ref, const H5std_string& name) const
+{
+ reference(ref, name.c_str());
+}
+
+//--------------------------------------------------------------------------
+// Function: H5Location::p_dereference (protected)
+// Purpose Dereference a ref into an hdf5 object.
+// Parameters
+// loc_id - IN: An hdf5 identifier specifying the location of the
+// referenced object
+// ref - IN: Reference pointer
+// ref_type - IN: Reference type
+// Exception H5::ReferenceException
+// Programmer Binh-Minh Ribler - Oct, 2006
+// Modification
+// May 2008 - BMR
+// Moved from IdComponent.
+//--------------------------------------------------------------------------
+hid_t H5Location::p_dereference(hid_t loc_id, const void* ref, H5R_type_t ref_type)
+{
+ hid_t temp_id;
+ temp_id = H5Rdereference2(loc_id, H5P_DEFAULT, ref_type, ref);
+ if (temp_id < 0)
+ {
+ throw ReferenceException("", "H5Rdereference failed");
+ }
+
+ // No failure, set id to the object
+ return(temp_id);
+}
+
+//--------------------------------------------------------------------------
+// Function: H5Location::dereference
+///\brief Dereferences a reference into an HDF5 object, given an HDF5 object.
+///\param obj - IN: Object specifying the location of the referenced object
+///\param ref - IN: Reference pointer
+///\param ref_type - IN: Reference type
+///\exception H5::ReferenceException
+// Programmer Binh-Minh Ribler - Oct, 2006
+// Modification
+// May, 2008
+// Corrected missing parameters. - BMR
+//--------------------------------------------------------------------------
+void H5Location::dereference(H5Object& obj, const void* ref, H5R_type_t ref_type)
+{
+ hid_t temp_id;
+ try {
+ temp_id = p_dereference(obj.getId(), ref, ref_type);
+ }
+ catch (ReferenceException E) {
+ throw ReferenceException("H5Location::dereference - located by object", E.getDetailMsg());
+ }
+ p_setId(temp_id);
+}
+
+//--------------------------------------------------------------------------
+// Function: H5Location::dereference
+///\brief Dereferences a reference into an HDF5 object, given an HDF5 file.
+///\param h5file - IN: HDF5 file specifying the location of the referenced object
+///\param ref - IN: Reference pointer
+///\param ref_type - IN: Reference type
+///\exception H5::ReferenceException
+// Programmer Binh-Minh Ribler - Oct, 2006
+// Modification
+// May, 2008
+// Corrected missing parameters. - BMR
+//--------------------------------------------------------------------------
+void H5Location::dereference(H5File& h5file, const void* ref, H5R_type_t ref_type)
+{
+ hid_t temp_id;
+ try {
+ temp_id = p_dereference(h5file.getId(), ref, ref_type);
+ }
+ catch (ReferenceException E) {
+ throw ReferenceException("H5Location::dereference - located by file", E.getDetailMsg());
+ }
+ p_setId(temp_id);
+}
+
+//--------------------------------------------------------------------------
+// Function: H5Location::dereference
+///\brief Dereferences a reference into an HDF5 object, given an attribute.
+///\param attr - IN: Attribute specifying the location of the referenced object
+///\param ref - IN: Reference pointer
+///\param ref_type - IN: Reference type
+///\exception H5::ReferenceException
+// Programmer Binh-Minh Ribler - Oct, 2006
+// Modification
+// May, 2008
+// Corrected missing parameters. - BMR
+//--------------------------------------------------------------------------
+void H5Location::dereference(Attribute& attr, const void* ref, H5R_type_t ref_type)
+{
+ hid_t temp_id;
+ try {
+ temp_id = p_dereference(attr.getId(), ref, ref_type);
+ }
+ catch (ReferenceException E) {
+ throw ReferenceException("H5Location::dereference - located by attribute", E.getDetailMsg());
+ }
+ p_setId(temp_id);
+}
+
+#ifndef H5_NO_DEPRECATED_SYMBOLS
+//--------------------------------------------------------------------------
+// Function: H5Location::getObjType
+///\brief Retrieves the type of object that an object reference points to.
+///\param ref_type - IN: Type of reference to query, valid values are:
+/// \li \c H5R_OBJECT \tReference is an object reference.
+/// \li \c H5R_DATASET_REGION \tReference is a dataset region reference.
+///\param ref - IN: Reference to query
+///\return An object type, which can be one of the following:
+/// \li \c H5G_UNKNOWN \tA failure occurs. (-1)
+/// \li \c H5G_GROUP \tObject is a group.
+/// \li \c H5G_DATASET \tObject is a dataset.
+/// \li \c H5G_TYPE Object \tis a named datatype
+/// \li \c H5G_LINK \tObject is a symbolic link.
+/// \li \c H5G_UDLINK \tObject is a user-defined link.
+///\exception H5::ReferenceException
+// Programmer Binh-Minh Ribler - May, 2004
+// Modification
+// Sep 2012: Moved up from H5File, Group, DataSet, and DataType
+//--------------------------------------------------------------------------
+H5G_obj_t H5Location::getObjType(void *ref, H5R_type_t ref_type) const
+{
+ try {
+ return(p_get_obj_type(ref, ref_type));
+ }
+ catch (ReferenceException E) {
+ throw ReferenceException("H5Location::getObjType", E.getDetailMsg());
+ }
+}
+
+//--------------------------------------------------------------------------
+// Function: H5Location::p_get_obj_type (protected)
+// Purpose Retrieves the type of object that an object reference points to.
+// Parameters
+// ref - IN: Reference to query
+// ref_type - IN: Type of reference to query
+// Return An object type, which can be one of the following:
+// H5G_UNKNOWN \tFailure occurs (-1)
+// H5G_GROUP \tObject is a group.
+// H5G_DATASET \tObject is a dataset.
+// H5G_TYPE Object \tis a named datatype.
+// H5G_LINK \tObject is a symbolic link.
+// H5G_UDLINK \tObject is a user-defined link.
+// Exception H5::ReferenceException
+// Programmer Binh-Minh Ribler - May, 2004
+//--------------------------------------------------------------------------
+H5G_obj_t H5Location::p_get_obj_type(void *ref, H5R_type_t ref_type) const
+{
+ H5G_obj_t obj_type = H5Rget_obj_type1(getId(), ref_type, ref);
+
+ if (obj_type == H5G_UNKNOWN)
+ {
+ throw ReferenceException("", "H5Rget_obj_type1 failed");
+ }
+ return(obj_type);
+}
+#endif /* H5_NO_DEPRECATED_SYMBOLS */
+
+
+//--------------------------------------------------------------------------
+// Function: H5Location::getRefObjType
+///\brief Retrieves the type of object that an object reference points to.
+///\param ref - IN: Reference to query
+///\param ref_type - IN: Type of reference to query, valid values are:
+/// \li \c H5R_OBJECT - Reference is an object reference.
+/// \li \c H5R_DATASET_REGION - Reference is a dataset region reference.
+///\return An object type, which can be one of the following:
+/// \li \c H5O_TYPE_UNKNOWN - Unknown object type (-1)
+/// \li \c H5O_TYPE_GROUP - Object is a group
+/// \li \c H5O_TYPE_DATASET - Object is a dataset
+/// \li \c H5O_TYPE_NAMED_DATATYPE - Object is a named datatype
+/// \li \c H5O_TYPE_NTYPES - Number of different object types
+///\exception H5::ReferenceException
+// Programmer Binh-Minh Ribler - May, 2004
+//--------------------------------------------------------------------------
+H5O_type_t H5Location::getRefObjType(void *ref, H5R_type_t ref_type) const
+{
+ try {
+ return(p_get_ref_obj_type(ref, ref_type));
+ }
+ catch (ReferenceException E) {
+ throw ReferenceException("H5Location::getRefObjType", E.getDetailMsg());
+ }
+}
+
+//--------------------------------------------------------------------------
+// Function: H5Location::p_get_ref_obj_type (protected)
+// Purpose Retrieves the type of object that an object reference points to.
+// Parameters
+// ref - IN: Reference to query
+// ref_type - IN: Type of reference to query
+// Return An object type, which can be one of the following:
+// H5O_TYPE_UNKNOWN - Unknown object type (-1)
+// H5O_TYPE_GROUP - Object is a group
+// H5O_TYPE_DATASET - Object is a dataset
+// H5O_TYPE_NAMED_DATATYPE - Object is a named datatype
+// H5O_TYPE_NTYPES - Number of object types
+// Exception H5::ReferenceException
+// Programmer Binh-Minh Ribler - May, 2004
+//--------------------------------------------------------------------------
+H5O_type_t H5Location::p_get_ref_obj_type(void *ref, H5R_type_t ref_type) const
+{
+ H5O_type_t obj_type = H5O_TYPE_UNKNOWN;
+ herr_t ret_value = H5Rget_obj_type2(getId(), ref_type, ref, &obj_type);
+
+ if (obj_type == H5O_TYPE_UNKNOWN || obj_type >= H5O_TYPE_NTYPES)
+ {
+ throw ReferenceException("", "H5Rget_obj_type2 failed");
+ }
+ return(obj_type);
+}
+
+
+//--------------------------------------------------------------------------
+// Function: H5Location::p_get_region (protected)
+// Purpose Retrieves a dataspace with the region pointed to selected.
+// Parameters
+// ref_type - IN: Type of reference to get region of - default
+// to H5R_DATASET_REGION
+// ref - IN: Reference to get region of
+// Return Dataspace id
+// Exception H5::ReferenceException
+// Programmer Binh-Minh Ribler - May, 2004
+//--------------------------------------------------------------------------
+hid_t H5Location::p_get_region(void *ref, H5R_type_t ref_type) const
+{
+ hid_t space_id = H5Rget_region(getId(), ref_type, ref);
+ if (space_id < 0)
+ {
+ throw ReferenceException("", "H5Rget_region failed");
+ }
+ return(space_id);
+}
+
+
+//--------------------------------------------------------------------------
+// Function: H5Location destructor
+///\brief Noop destructor.
+// Programmer Binh-Minh Ribler - 2000
+//--------------------------------------------------------------------------
+H5Location::~H5Location() {}
+
+#ifndef H5_NO_NAMESPACE
+} // end namespace
+#endif
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