Function DataBlock_AllocateItem

src/util/datablock/datablock.c:179–201

}

void *DataBlock_AllocateItem(DataBlock *dataBlock, uint64_t *idx) {
	// make sure we've got room for items
	if(dataBlock->itemCount >= dataBlock->itemCap) {
		// allocate an additional block
		_DataBlock_AddBlocks(dataBlock, 1);
	}
	ASSERT(dataBlock->itemCap > dataBlock->itemCount);

	// get index into which to store item,
	// prefer reusing free indicies
	uint pos = dataBlock->itemCount;
	if(array_len(dataBlock->deletedIdx) > 0) {
		pos = array_pop(dataBlock->deletedIdx);
	}
	dataBlock->itemCount++;

	if(idx) *idx = pos;

	DataBlockItemHeader *item_header = DataBlock_GetItemHeader(dataBlock, pos);
	MARK_HEADER_AS_NOT_DELETED(item_header);

	return ITEM_DATA(item_header);
}

void DataBlock_DeleteItem(DataBlock *dataBlock, uint64_t idx) {
	ASSERT(dataBlock != NULL);