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-rw-r--r--c++/src/H5PredType.h17
1 files changed, 13 insertions, 4 deletions
diff --git a/c++/src/H5PredType.h b/c++/src/H5PredType.h
index 69abfcb..9cb1c65 100644
--- a/c++/src/H5PredType.h
+++ b/c++/src/H5PredType.h
@@ -26,9 +26,17 @@
namespace H5 {
#endif
+/* This constant is defined for a workaround to eliminate memory leaks due to
+ the library being re-initiated when PredType destructors are invoked. A
+ PredType instant with H5CPP_EXITED as the value of its "id" is constructed
+ before the other PredType objects are created. At exit, when this special
+ PredType object is to be destructed, no HDF5 library function will be called
+ and the library will be terminated. -BMR, Mar 30, 2012 */
+#define H5CPP_EXITED -3 // -3 is less likely to be used elsewhere
+
class H5_DLLCPP PredType : public AtomType {
public:
- // Returns this class name
+ ///\brief Returns this class name
virtual H5std_string fromClass () const { return("PredType"); }
// Makes a copy of the predefined type and stores the new
@@ -229,9 +237,10 @@ class H5_DLLCPP PredType : public AtomType {
#endif // DOXYGEN_SHOULD_SKIP_THIS
private:
- // added this to work around the atexit/global destructor problem
- // temporarily - it'll prevent the use of atexit to clean up
- static const PredType NotAtexit; // not working yet
+ // Added this to work around the atexit/global destructor problem.
+ // It'll help to terminate the library after other PredType instances
+ // are closed. -BMR, Mar 30, 2012
+ static const PredType AtExit;
protected:
#ifndef DOXYGEN_SHOULD_SKIP_THIS