Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!bloom-beacon!primerd!ENI!S63!SANDEEP
From: SANDEEP@S63.Prime.COM
Newsgroups: comp.unix.questions
Subject: Re: Socket help wanted
Message-ID: <100300001@S63.Prime.COM>
Date: 24 Jul 89 16:15:00 GMT
References: <2145@dlvax2.datlog.co.uk>
Lines: 60
Nf-ID: #R:dlvax2.datlog.co.uk:-214500:S63:100300001:000:1028
Nf-From: S63.Prime.COM!SANDEEP    Jul 24 16:15:00 1989



scm@datlog.UUCP writes :
>I have an application which listens on a well-known port, accepts a
>connection and execs a child process, then awaits further connects.


I haven't tried this, but seems like it should work:


#define MAXBACK 1

int numconn;


server()
{
    int oldmask;

    numconn = 0;
    /*create and bind socket */

    signal(SIGCHLD,decnumconn);
    for(;;) {
       if (numconn < MAXCONN) {
            err = listen(s,MAXBACK);

            oldmask = signal(SIGCHLD);
            sigblock(SIGCHLD);
            numconn++;
            sigsetmask(oldmask);

            /* accept,fork, etc. */
       }
    }
}

decnumconn()
{
    numconn--;
}



client()
{
    /*create and bind socket */

    while ((connect(..,..,..) < 0) {
         if (errno != ECONNREFUSED) return(-1);  /* or whatever */
    }

    /* transfer data */
}



--------------------------------------
In_Real_Life: Sandeep Srivastava           Prime Computer, Natick, MA 01701.
Internet    : sandeep@s63.prime.com        508-879-2960x3711