xref: /original-bsd/usr.bin/talk/msgs.c (revision c3e32dec)
1 /*
2  * Copyright (c) 1983, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * %sccs.include.redist.c%
6  */
7 
8 #ifndef lint
9 static char sccsid[] = "@(#)msgs.c	8.1 (Berkeley) 06/06/93";
10 #endif /* not lint */
11 
12 /*
13  * A package to display what is happening every MSG_INTERVAL seconds
14  * if we are slow connecting.
15  */
16 
17 #include <sys/time.h>
18 #include <signal.h>
19 #include <stdio.h>
20 #include "talk.h"
21 
22 #define MSG_INTERVAL 4
23 
24 char	*current_state;
25 int	current_line = 0;
26 
27 void
28 disp_msg()
29 {
30 	message(current_state);
31 }
32 
33 start_msgs()
34 {
35 	struct itimerval itimer;
36 
37 	message(current_state);
38 	signal(SIGALRM, disp_msg);
39 	itimer.it_value.tv_sec = itimer.it_interval.tv_sec = MSG_INTERVAL;
40 	itimer.it_value.tv_usec = itimer.it_interval.tv_usec = 0;
41 	setitimer(ITIMER_REAL, &itimer, (struct itimerval *)0);
42 }
43 
44 end_msgs()
45 {
46 	struct itimerval itimer;
47 
48 	timerclear(&itimer.it_value);
49 	timerclear(&itimer.it_interval);
50 	setitimer(ITIMER_REAL, &itimer, (struct itimerval *)0);
51 	signal(SIGALRM, SIG_DFL);
52 }
53