C++ (Cpp) VALGRIND_MEMPOOL_CHANGE Examples

Example #1

File: mcxt.c Project: ysd001/pgpool2

/*
 * repalloc
 *		Adjust the size of a previously allocated chunk.
 */
void *
repalloc(void *pointer, Size size)
{
	MemoryContext context;
	void	   *ret;

	if (!AllocSizeIsValid(size))
		elog(ERROR, "invalid memory alloc request size %zu", size);

	/* pgpool hack by Muhammad Usama <*****@*****.**> */
	if(pointer == NULL)
		return palloc(size);

	context = GetMemoryChunkContext(pointer);

	AssertNotInCriticalSection(context);

	/* isReset must be false already */
	Assert(!context->isReset);

	ret = (*context->methods->realloc) (context, pointer, size);
	if (ret == NULL)
	{
		MemoryContextStats(TopMemoryContext);
		ereport(ERROR,
				(errcode(ERRCODE_OUT_OF_MEMORY),
				 errmsg("out of memory"),
				 errdetail("Failed on request of size %zu.", size)));
	}

	VALGRIND_MEMPOOL_CHANGE(context, pointer, ret, size);

	return ret;
}

Example #2

File: mcxt.c Project: 42penguins/postgres

/*
 * repalloc_huge
 *		Adjust the size of a previously allocated chunk, permitting a large
 *		value.  The previous allocation need not have been "huge".
 */
void *
repalloc_huge(void *pointer, Size size)
{
	MemoryContext context;
	void	   *ret;

	if (!AllocHugeSizeIsValid(size))
		elog(ERROR, "invalid memory alloc request size %lu",
			 (unsigned long) size);

	/*
	 * Try to detect bogus pointers handed to us, poorly though we can.
	 * Presumably, a pointer that isn't MAXALIGNED isn't pointing at an
	 * allocated chunk.
	 */
	Assert(pointer != NULL);
	Assert(pointer == (void *) MAXALIGN(pointer));

	/*
	 * OK, it's probably safe to look at the chunk header.
	 */
	context = ((StandardChunkHeader *)
			   ((char *) pointer - STANDARDCHUNKHEADERSIZE))->context;

	AssertArg(MemoryContextIsValid(context));

	/* isReset must be false already */
	Assert(!context->isReset);

	ret = (*context->methods->realloc) (context, pointer, size);
	VALGRIND_MEMPOOL_CHANGE(context, pointer, ret, size);

	return ret;
}

Example #3

File: src_backend_utils_mmgr_mcxt.c Project: Michael-Tieying-Zhang/peloton

/*
 * repalloc
 *		Adjust the size of a previously allocated chunk.
 */
void *
repalloc(void *pointer, Size size)
{
	MemoryContext context;
	void	   *ret;

	if (!AllocSizeIsValid(size))
		elog(ERROR, "invalid memory alloc request size %zu", size);

	/*
	 * Try to detect bogus pointers handed to us, poorly though we can.
	 * Presumably, a pointer that isn't MAXALIGNED isn't pointing at an
	 * allocated chunk.
	 */
	Assert(pointer != NULL);
	Assert(pointer == (void *) MAXALIGN(pointer));

	/*
	 * OK, it's probably safe to look at the chunk header.
	 */
	context = ((StandardChunkHeader *)
			   ((char *) pointer - STANDARDCHUNKHEADERSIZE))->context;

	AssertArg(MemoryContextIsValid(context));
	AssertNotInCriticalSection(context);

	/* isReset must be false already */
	Assert(!context->isReset);

	ret = (*context->methods->realloc) (context, pointer, size);
	if (ret == NULL)
	{
		MemoryContextStats(TopMemoryContext);
		ereport(ERROR,
				(errcode(ERRCODE_OUT_OF_MEMORY),
				 errmsg("out of memory"),
				 errdetail("Failed on request of size %zu.", size)));
	}

	VALGRIND_MEMPOOL_CHANGE(context, pointer, ret, size);

	return ret;
}