int _locking(int _fd, int mode, long nbytes)
{
long offset = _lseek(_fd, 0L, 1);
if (!LockFile(_get_osfhandle(_fd),offset,0,nbytes,0))
return -1;
int _locking(int _fd, int mode, long nbytes)
{
long offset = _lseek(_fd, 0L, 1);
if (!LockFile(_get_osfhandle(_fd),offset,0,nbytes,0))
return -1;