//--------------------------------------------------------------------------
// Function: IdComponent::getCounter
///\brief Returns the reference counter for a given id.
///\return Reference count
// Programmer Binh-Minh Ribler - May 2005
//--------------------------------------------------------------------------
int IdComponent::getCounter(const hid_t obj_id) const
{
int counter = 0;
if (p_valid_id(obj_id))
{
counter = H5Iget_ref(obj_id);
if (counter < 0)
throw IdComponentException(inMemFunc("incRefCount"), "getting object ref count failed - negative");
}
return (counter);
}
//--------------------------------------------------------------------------
// Function: IdComponent::decRefCount
///\brief Decrement reference counter for a given id.
// Programmer Binh-Minh Ribler - May 2005
// Modification:
// Added the check for ref counter to give a little more info
// on why H5Idec_ref fails in some cases - BMR 5/19/2005
//--------------------------------------------------------------------------
void IdComponent::decRefCount(const hid_t obj_id) const
{
if (p_valid_id(obj_id))
if (H5Idec_ref(obj_id) < 0)
if (H5Iget_ref(obj_id) <= 0)
throw IdComponentException(inMemFunc("decRefCount"),
"object ref count is 0 or negative");
else
throw IdComponentException(inMemFunc("decRefCount"),
"decrementing object ref count failed");
}
//--------------------------------------------------------------------------
// 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
// plist - IN: Property list - default to PropList::DEFAULT
// from_func - IN: Name of the calling function
// 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, const PropList& plist, const char* from_func)
{
hid_t plist_id;
if (p_valid_id(plist.getId()))
plist_id = plist.getId();
else
plist_id = H5P_DEFAULT;
hid_t temp_id = H5Rdereference2(loc_id, plist_id, ref_type, ref);
if (temp_id < 0)
{
throw ReferenceException(inMemFunc(from_func), "H5Rdereference failed");
}
return(temp_id);
}
//--------------------------------------------------------------------------
// Function: IdComponent::incRefCount
///\brief Increment reference counter for a given id.
// Programmer Binh-Minh Ribler - May 2005
//--------------------------------------------------------------------------
void IdComponent::incRefCount(const hid_t obj_id) const
{
if (p_valid_id(obj_id))
if (H5Iinc_ref(obj_id) < 0)
throw IdComponentException(inMemFunc("incRefCount"), "incrementing object ref count failed");
}
