private static error @lock(File f, lockType lt)
{
// Per https://golang.org/issue/19098, “Programs currently expect the Fd
// method to return a handle that uses ordinary synchronous I/O.”
// However, LockFileEx still requires an OVERLAPPED structure,
// which contains the file offset of the beginning of the lock range.
// We want to lock the entire file, so we leave the offset as zero.
ptr <object> ol = @new <syscall.Overlapped>();
var err = windows.LockFileEx(syscall.Handle(f.Fd()), uint32(lt), reserved, allBytes, allBytes, ol);
if (err != null)
{
return(error.As(addr(new os.PathError(Op: lt.String(), Path: f.Name(), Err: err, )) !) !);
}
return(error.As(null !) !);
}
private static error @lock(File f, lockType lt)
{
return(error.As(addr(new os.PathError(Op: lt.String(), Path: f.Name(), Err: ErrNotSupported, )) !) !);
}