I want to set up a uni-directional message stream between a server
process and several unrelated client processes.

I'm keen to implement this using fifo piping. Can anyone point me in the
direction of any resources on this subject on the web (ie. example code)?

Cheers,

Richard Mundell
---
  Your eyes are weary from staring at the CRT.  You feel sleepy.  Notice how
   restful it is to watch the cursor blink.  Close your eyes.  The opinions
   stated above are yours.  You cannot imagine why you ever felt otherwise.

     Richard Mundell, SYS, University of East Anglia, Norwich, England
     r.mund...@uea.ac.uk http://www.**-**.com/ ~u9427082/Photo.html

Here it is:

/*
 * mkfifo.c
 *
 * makes a fifo (named pipe)
 */

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>

int main( int argc, char **argv )
{
  mode_t mode;

  if( argc < 2 ) {
    fprintf( stderr, "USAGE:  %s <fifoname> [<mode>]\n", argv[0] );
    exit(1);
  }

  if( argc < 3 ) {
    mode = 0777;
  } else {
    mode = atoi( argv[2] );
  }

  if( mkfifo( argv[1], mode ) == -1 ) {
    perror( "Mkfifo failed" );
    exit(1);
  }

  return 0;

This program creates a fifo in the filesystem. You can use it by
opening it for read on one end and open it for write on the other,
just as you would do for an ordinary file.

Leon.
--
Windows No Thanks!