trySyncFileRange(fd, offset, numBytes, SYNC_FILE_RANGE_WRITE); if (offset > 0) { trySyncFileRange(fd, lastOffset, lastBytes, SYNC_FILE_RANGE_WAIT_BEFORE | SYNC_FILE_RANGE_WRITE | SYNC_FILE_RANGE_WAIT_AFTER);
trySyncFileRange(fd, offset, numBytes, SYNC_FILE_RANGE_WRITE); if (offset > 0) { trySyncFileRange(fd, lastOffset, lastBytes, SYNC_FILE_RANGE_WAIT_BEFORE | SYNC_FILE_RANGE_WRITE | SYNC_FILE_RANGE_WAIT_AFTER);