Method CreateBlock

source/SimpleHeap.cpp:144–165

SimpleHeap *SimpleHeap::CreateBlock()
// Added for v1.0.40.04 to try to solve the fact that some functions such as GetRawInputDeviceList()
// will sometimes fail if passed memory from SimpleHeap. Although this change didn't actually solve
// the issue (it turned out to be a 32-bit alignment issue), using malloc() appears to save memory
// (compared to using "new" on a class that contains a large buffer such as "char mBlock[BLOCK_SIZE]").
// In a 200 KB script, it saves 8 KB of VM Size as shown by Task Manager.
{
	SimpleHeap *block;
	if (   !(block = new SimpleHeap)   )
		return NULL;
	// The new block's mFreeMarker starts off pointing to the first byte in the new block:
	if (   !(block->mBlock = block->mFreeMarker = (char *)malloc(BLOCK_SIZE))   )
	{
		delete block;
		return NULL;
	}
	// Since above didn't return, block was successfully created:
	block->mSpaceAvailable = BLOCK_SIZE;
	sLast = block;  // Constructing a new block always results in it becoming the current block.
	++sBlockCount;
	return block;
}