//--------------------------------------------------------------------------
// 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");
}
/*
* Class: hdf_hdf5lib_H5
* Method: H5Idec_1ref
* Signature: (J)I
*/
JNIEXPORT jint JNICALL
Java_hdf_hdf5lib_H5_H5Idec_1ref
(JNIEnv *env, jclass clss, jlong obj_id)
{
int retVal = -1;
retVal = H5Idec_ref((hid_t)obj_id);
if (retVal < 0)
h5libraryError(env);
return (jint)retVal;
} /* end Java_hdf_hdf5lib_H5_H5Idec_1ref */
/* Free callback */
static herr_t test_rct_free(void *_obj) {
test_rct_obj_t *obj = (test_rct_obj_t *)_obj;
long rem_idx, i;
herr_t ret; /* return value */
/* Mark this object as freed */
obj->nfrees++;
obj->obj_list->nobjs_rem--;
/* Check freeing and nobjs_rem */
if(!obj->freeing && (obj->obj_list->nobjs_rem > 0)) {
/* Remove a random object from the list */
rem_idx = HDrandom() % obj->obj_list->nobjs_rem;
/* Scan the list, finding the rem_idx'th object that has not been
* freed */
for(i = 0; i < obj->obj_list->nobjs; i++)
if(obj->obj_list->list[i].nfrees == 0) {
if(rem_idx == 0)
break;
else
rem_idx--;
} /* end if */
if(i == obj->obj_list->nobjs) {
ERROR("invalid obj_list");
goto out;
} /* end if */
else {
/* Remove the object. Mark as "freeing" so its own callback does
* not free another object. */
obj->obj_list->list[i].freeing = TRUE;
ret = H5Idec_ref(obj->obj_list->list[i].id);
CHECK(ret, FAIL, "H5Idec_ref");
if(ret == FAIL)
goto out;
obj->obj_list->list[i].freeing = FALSE;
} /* end else */
} /* end if */
/* Verify nobjs_rem is non-negative */
if(obj->obj_list->nobjs_rem < 0) {
ERROR("invalid nobjs_rem");
goto out;
} /* end if */
return 0;
out:
return -1;
} /* end test_rct_free() */
/****if* H5If/h5idec_ref_c
* NAME
* h5idec_ref_c
* PURPOSE
* Call H5Idec_ref to decrement object's reference count
* INPUTS
* obj_id - object identifier
* OUTPUTS
* ref_count - Reference count of ID
* RETURNS
* current reference count on success, -1 on failure
* AUTHOR
* Quincey Koziol
* Tuesday, December 9, 2003
* SOURCE
*/
int_f
h5idec_ref_c(hid_t_f *obj_id, int_f *ref_count)
/******/
{
int ret_value;
/*
* Call H5Idec_ref function
*/
if ((ret_value = H5Idec_ref(*obj_id)) < 0)
HGOTO_DONE(FAIL);
/* Set output & return values */
*ref_count=ret_value;
ret_value=0;
done:
return ret_value;
}
