xref: /illumos-gate/usr/src/cmd/cmd-inet/usr.bin/talk/msgs.c (revision d48be21240dfd051b689384ce2b23479d757f2d8)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 1994 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
28 /*	  All Rights Reserved  	*/
29 
30 /*
31  * University Copyright- Copyright (c) 1982, 1986, 1988
32  * The Regents of the University of California
33  * All Rights Reserved
34  *
35  * University Acknowledgment- Portions of this document are derived from
36  * software developed by the University of California, Berkeley, and its
37  * contributors.
38  */
39 
40 /*
41  * a package to display what is happening every MSG_INTERVAL seconds
42  * if we are slow connecting.
43  */
44 
45 #include <signal.h>
46 #include <stdio.h>
47 #include <sys/time.h>
48 #include "talk.h"
49 
50 #ifdef SYSV
51 #define	signal(s, f)	sigset(s, f)
52 #endif /* SYSV */
53 
54 #define	MSG_INTERVAL 4
55 #define	LONG_TIME 100000
56 
57 char *current_state;
58 int current_line = 0;
59 
60 static struct itimerval itimer;
61 static struct timeval wait = { MSG_INTERVAL, 0};
62 
63 
64 static void
65 disp_msg()
66 {
67 	message(current_state);
68 }
69 
70 void
71 start_msgs()
72 {
73 	message(current_state);
74 	signal(SIGALRM, (void (*)())disp_msg);
75 	itimer.it_value = itimer.it_interval = wait;
76 	setitimer(ITIMER_REAL, &itimer, (struct itimerval *)0);
77 }
78 
79 void
80 end_msgs()
81 {
82 	signal(SIGALRM, SIG_IGN);
83 	timerclear(&itimer.it_value);
84 	timerclear(&itimer.it_interval);
85 	setitimer(ITIMER_REAL, &itimer, (struct itimerval *)0);
86 }
87