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 * @(#)msgs.c 8.1 (Berkeley) 6/6/93 30 * $FreeBSD: src/usr.bin/talk/msgs.c,v 1.5 1999/08/28 01:06:14 peter Exp $ 31 */ 32 33 /* 34 * A package to display what is happening every MSG_INTERVAL seconds 35 * if we are slow connecting. 36 */ 37 38 #include <signal.h> 39 #include "talk.h" 40 41 #define MSG_INTERVAL 4 42 43 const char *current_state; 44 int current_line = 0; 45 46 /* ARGSUSED */ 47 void 48 disp_msg(int signo __unused) 49 { 50 message(current_state); 51 } 52 53 void 54 start_msgs(void) 55 { 56 struct itimerval itimer; 57 58 message(current_state); 59 signal(SIGALRM, disp_msg); 60 itimer.it_value.tv_sec = itimer.it_interval.tv_sec = MSG_INTERVAL; 61 itimer.it_value.tv_usec = itimer.it_interval.tv_usec = 0; 62 setitimer(ITIMER_REAL, &itimer, NULL); 63 } 64 65 void 66 end_msgs(void) 67 { 68 struct itimerval itimer; 69 70 timerclear(&itimer.it_value); 71 timerclear(&itimer.it_interval); 72 setitimer(ITIMER_REAL, &itimer, NULL); 73 signal(SIGALRM, SIG_DFL); 74 } 75