Very Computer

Hello!

I need some hints on setting a AF_INET/SOCK_STREAM socket to
non-buffering mode.

After creating and connecting the socket (which seems to succeed,
because no error is reported), I try to send data.

netstat then reports that the data is in the S-Que.

Because I need immediate delivery of every data-set, the buffer should
be flushed every time I do a write.

How can I manage this?

The code I've written looks like this:

...
getting host
getting service

  if ((unit = socket(AF_INET, SOCK_STREAM, 0)) < 0)
    {
      return (E_SOCKET_FAIL);
    }

  if (connect(unit, (struct sockaddr*) &s, sizeof(s)) < 0)
    {
      close(unit);
      return E_CONNECT_FAILED;
    }

-------- the data of the following write is buffered (up to 1024 bytes)
  if (write(unit, HELLO_MSG, sizeof(HELLO_MSG)) <0)
    {
        close(unit);    
    }

Please give me some hints, I  think there should be a ioctl() or
setsockopt() call which will do the job.

Thanks in advance,

                Thomas

--
-----------------------------------------------------
                    THOMAS GEHLER

                   TH-Darmstadt
        FB Flugmechanik &   Reglungstechnik
              Stick Gruppe (Thurecht)
                phone: (+49)6151-16-2290
                fax: (+49)6151-16-5434
              D-64287 Darmstadt Germany
-----------------------------------------------------

Quote:>Hello!

>I need some hints on setting a AF_INET/SOCK_STREAM socket to
>non-buffering mode.

>Please give me some hints, I  think there should be a ioctl() or
>setsockopt() call which will do the job.

>Thanks in advance,

>               Thomas

Regards,
R.

 >> I need some hints on setting a AF_INET/SOCK_STREAM socket to
 >> non-buffering mode.

 Roger> Try:
 Roger>      int     siz = 0;
 Roger>      ...
 Roger>      setsockopt(sock, SOL_SOCKET, SO_SNDBUF, &siz, sizeof(int));

I don't think so. This is a pretty useless thing to do.

--

"Ceterum censeo Microsoftam delendam esse" - Alain Knaff in nanam