msgs.c revision 331722 
1/*
2 * Copyright (c) 1983, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#include <sys/cdefs.h>
31
32__FBSDID("$FreeBSD: stable/11/usr.bin/talk/msgs.c 331722 2018-03-29 02:50:57Z eadler $");
33
34#ifndef lint
35static const char sccsid[] = "@(#)msgs.c	8.1 (Berkeley) 6/6/93";
36#endif
37
38/*
39 * A package to display what is happening every MSG_INTERVAL seconds
40 * if we are slow connecting.
41 */
42
43#include <signal.h>
44
45#include "talk.h"
46
47#define MSG_INTERVAL 4
48
49const char	*current_state;
50int	current_line = 0;
51
52/* ARGSUSED */
53void
54disp_msg(int signo __unused)
55{
56	message(current_state);
57}
58
59void
60start_msgs(void)
61{
62	struct itimerval itimer;
63
64	message(current_state);
65	signal(SIGALRM, disp_msg);
66	itimer.it_value.tv_sec = itimer.it_interval.tv_sec = MSG_INTERVAL;
67	itimer.it_value.tv_usec = itimer.it_interval.tv_usec = 0;
68	setitimer(ITIMER_REAL, &itimer, (struct itimerval *)0);
69}
70
71void
72end_msgs(void)
73{
74	struct itimerval itimer;
75
76	timerclear(&itimer.it_value);
77	timerclear(&itimer.it_interval);
78	setitimer(ITIMER_REAL, &itimer, (struct itimerval *)0);
79	signal(SIGALRM, SIG_DFL);
80}
81