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authorBinh-Minh Ribler <bmribler@hdfgroup.org>2000-12-07 00:04:08 (GMT)
committerBinh-Minh Ribler <bmribler@hdfgroup.org>2000-12-07 00:04:08 (GMT)
commitf148ff3caf533e9f6029798617f0a8087bcd6c05 (patch)
tree00bb6ca4d0e50aa0e591eed6a0d739c04c93c5e7 /c++/src/H5IdComponent.cpp
parent7df8cd5cfe22372f603ea058334647fe4017008e (diff)
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[svn-r3080]
Purpose: Support portability Description: I forgot that source file extension .C will not work on Windows. Solution: Changed all source file from *.C to *.cpp for portability. Platforms tested: arabica (sparc-sun-solaris 2.7)
Diffstat (limited to 'c++/src/H5IdComponent.cpp')
-rw-r--r--c++/src/H5IdComponent.cpp136
1 files changed, 136 insertions, 0 deletions
diff --git a/c++/src/H5IdComponent.cpp b/c++/src/H5IdComponent.cpp
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+++ b/c++/src/H5IdComponent.cpp
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+#include <string>
+
+#include "H5Include.h"
+#include "H5RefCounter.h"
+#include "H5Exception.h"
+#include "H5Library.h"
+#include "H5IdComponent.h"
+#include "H5Idtemplates.h"
+
+#ifndef H5_NO_NAMESPACE
+namespace H5 {
+#endif
+
+// Default constructor - private
+IdComponent::IdComponent() : id( 0 )
+{
+ // starts counting object references
+ ref_count = new RefCounter;
+}
+
+// Constructor that takes an HDF5 object id. It creates an instance
+// of IdComponent to hold the HDF5 id
+IdComponent::IdComponent( hid_t h5_id ) : id( h5_id )
+{
+ // starts counting object references
+ ref_count = new RefCounter;
+}
+
+// Copy constructor: makes a copy of the original object
+IdComponent::IdComponent( const IdComponent& original )
+{
+ id = original.id;
+ ref_count = original.ref_count; // points to the same ref counter
+ ref_count->increment(); // increment number of references to this id
+}
+
+// Increment reference counter
+void IdComponent::incRefCount() { ref_count->increment(); }
+
+// Decrement reference counter
+void IdComponent::decRefCount() { ref_count->decrement(); }
+
+// Get the reference counter to this identifier
+int IdComponent::getCounter() { return( ref_count->getCounter()); }
+
+// Decrements the reference counter then determines if there are no more
+// reference to this object
+bool IdComponent::noReference()
+{
+ if( ref_count->getCounter() > 0 )
+ ref_count->decrement();
+ return( ref_count->getCounter() == 0 ? true:false );
+}
+
+/* Assignment operator.
+ Description:
+ Reset the identifier of this object so that the HDF5 id can be properly
+ closed. Copy the new identifier to this object, then increment the
+ reference counter of the identifier to indicate that another object
+ is referencing the identifier.
+*/
+IdComponent& IdComponent::operator=( const IdComponent& rhs )
+{
+ // reset the identifier of this object - resetIdComponent will call the
+ // appropriate H5xclose to close the id
+ resetIdComponent( this );
+
+ // copy the data members from the rhs object
+ id = rhs.id;
+ ref_count = rhs.ref_count; // points to the same ref counter
+
+ // increment the reference counter
+ ref_count->increment();
+
+ return( *this );
+}
+
+/* Sets the identifier of this object to a new value
+ Description:
+ Reset the current identifier of this object so that the HDF5
+ id can be appropriately closed. If only this object references
+ its identifier, its reference counter will be deleted. A new
+ reference counter is created for the new HDF5 object id.
+*/
+void IdComponent::setId( hid_t new_id )
+{
+ // reset the identifier of this object, call appropriate H5Xclose
+ resetIdComponent( this );
+
+ id = new_id;
+
+ // starts counting object references
+ ref_count = new RefCounter;
+}
+
+// Gets the id of this object
+hid_t IdComponent::getId () const
+{
+ return( id );
+}
+
+// Reset this object by deleting its RefCounter
+void IdComponent::reset ()
+{
+ delete ref_count;
+}
+
+// Default destructor
+IdComponent::~IdComponent() {
+
+/* uncomment this block when decide to use dontAtExit or fix the atexit/
+ global destructor problem - BMR 11/14/00
+
+ if( id == NOTATEXIT )
+ {
+ // Call H5Library::close to clean up - temporary solution to avoid the
+ // trouble of atexit/global destructors
+ try {
+ if( H5Library::need_cleanup == true )
+ {
+ H5Library::close();
+ H5Library::need_cleanup = false; // reset the boolean just in case
+ }
+ }
+ // catch failure caused by the H5Library operations
+ catch( LibraryIException error )
+ {
+ error.printError();
+ }
+ }
+*/
+}
+
+#ifndef H5_NO_NAMESPACE
+}
+#endif