Function MemoryContextContainsGenericAllocation

src/backend/utils/mmgr/mcxt.c:975–985

* MemoryContextContainsGenericAllocation * * Detects whether a generic (may or may not be allocated by palloc) chunk of * memory belongs to a given context or not. Note, the "generic" means it will * be ready to handle chunks not allocated using palloc, not at the start of an * allocated region, and not necessarily aligned. * * Currently only supports AllocSet, will error out if called on

 *        performance implications before proceeding is recommended.
 */
bool
MemoryContextContainsGenericAllocation(MemoryContext context, void *pointer)
{
	if (context->type != T_AllocSetContext)
		MemoryContextError(ERRCODE_INTERNAL_ERROR,
			context, CDB_MCXT_WHERE(context),
			"MemoryContextContainsGenericAllocation is not available for type %u",
			context->type);

	return AllocSetContains(context, pointer);
}

/*--------------------
 * MemoryContextCreate