hfscommon/Misc/FileExtentMapping.c

950 	int64_t				bytesThisExtent;
1092 	bytesThisExtent = (int64_t)(nextBlock - fcb->ff_blocks) * (int64_t)volumeBlockSize;
1093 	if (bytesThisExtent != 0) {
1095 		FTOC(fcb)->c_blocks += (bytesThisExtent / volumeBlockSize);
1097 		bytesToAdd -= bytesThisExtent;
1275 			bytesThisExtent = (int64_t)((int64_t)actualNumBlocks * (int64_t)volumeBlockSize);
1276 			if (bytesThisExtent > bytesToAdd) {
1280 				bytesToAdd -= bytesThisExtent;
1281 				maximumBytes -= bytesThisExtent;
1283 			fcb->ff_blocks += (bytesThisExtent / volumeBlockSize);
1284 			FTOC(fcb)->c_blocks += (bytesThisExtent / volumeBlockSize);