Function MSC_alloc_permanent

src/gpre/msc.cpp:121–145

//

UCHAR* MSC_alloc_permanent(int size)
{
	size = FB_ALIGN(size, FB_ALIGNMENT);

	if (!permanent_space || size > permanent_space->spc_remaining)
	{
		const int n = MAX(size, 4096);
		gpre_space* next = (gpre_space*) gds__alloc((SLONG) (n + sizeof(gpre_space)));
		if (!next)
			CPR_error("virtual memory exhausted");
#ifdef DEBUG_GDS_ALLOC
		// For V4.0 we don't care about gpre specific memory leaks
		gds_alloc_flag_unfreed(next);
#endif
		next->spc_next = permanent_space;
		next->spc_remaining = n;
		permanent_space = next;
	}

	permanent_space->spc_remaining -= size;
	UCHAR* blk = (UCHAR*) permanent_space + sizeof(gpre_space) + permanent_space->spc_remaining;
	memset(blk, 0, size);

	return blk;
}


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