usr/src/usr.bin/talk/msgs.c

/*
 * Copyright (c) 1983 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

#ifndef lint
static char sccsid[] = "@(#)msgs.c      5.1 (Berkeley) %G%";
#endif not lint

/*
 * A package to display what is happening every MSG_INTERVAL seconds
 * if we are slow connecting.
 */

#include <signal.h>
#include <stdio.h>
#include <sys/time.h>
#include "talk.h"

#define MSG_INTERVAL 4
#define LONG_TIME 100000

char    *current_state;
int     current_line = 0;

static  struct itimerval itimer;
static  struct timeval wait = { MSG_INTERVAL , 0};
static  struct timeval undo = { LONG_TIME, 0};

disp_msg()
{

        message(current_state);
}

start_msgs()
{

        message(current_state);
        signal(SIGALRM, disp_msg);
        itimer.it_value = itimer.it_interval = wait;
        setitimer(ITIMER_REAL, &itimer, (struct timerval *)0);
}

end_msgs()
{

        signal(SIGALRM, SIG_IGN);
        timerclear(&itimer.it_value);
        timerclear(&itimer.it_interval);
        setitimer(ITIMER_REAL, &itimer, (struct timerval *)0);
}