Re: writeData: does not send out data for 5-10 minutes

[Andreas Höschler]

Hello Chris,

> > You mean the data (n bytes) is actually sent by machineA and also
> > received by machineB but NSFileHandleReadCompletionNotification is not
> > posted until at least N (N > n) bytes have been received?
> > If anyhow possible I would like to use the NSFileHandle notification
> > mechanism versus polling for available data.
> > Can the timeout be reduced?
>
> I'm not familiar with using NSFileHandle for a TCP oder UDP socket 
> (though
> essentially a socket is a file, I prefer to differ between those two).
>
> > From a socket's point of view, you can use setsockopt() to reduce or
> increase the timeout for sending/receiving.
>
> Maybe, just maybe, you could use NSFileHandle-synchronizeFile to flush 
> the
> buffer. But as I said, I do not use NSFileHandle on sockets.
> Richard might tell you, though.

I have checked the GNUstep sources and as far as I understand them 
NSFileHandle-synchronizeFile has no effect on sockets:

- (void) synchronizeFile
{
  if (isStandardFile)
    {
#if defined(__MINGW__)
      (void)_commit(descriptor);
#else
      (void)sync();
#endif
    }
}

Anyway, thanks!

Regards,

 Andreas