Annotation of 43BSD/ucb/talk/msgs.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1983 Regents of the University of California.
        !             3:  * All rights reserved.  The Berkeley software License Agreement
        !             4:  * specifies the terms and conditions for redistribution.
        !             5:  */
        !             6: 
        !             7: #ifndef lint
        !             8: static char sccsid[] = "@(#)msgs.c     5.1 (Berkeley) 6/6/85";
        !             9: #endif not lint
        !            10: 
        !            11: /* 
        !            12:  * A package to display what is happening every MSG_INTERVAL seconds
        !            13:  * if we are slow connecting.
        !            14:  */
        !            15: 
        !            16: #include <signal.h>
        !            17: #include <stdio.h>
        !            18: #include <sys/time.h>
        !            19: #include "talk.h"
        !            20: 
        !            21: #define MSG_INTERVAL 4
        !            22: #define LONG_TIME 100000
        !            23: 
        !            24: char   *current_state;
        !            25: int    current_line = 0;
        !            26: 
        !            27: static struct itimerval itimer;
        !            28: static struct timeval wait = { MSG_INTERVAL , 0};
        !            29: static struct timeval undo = { LONG_TIME, 0};
        !            30:        
        !            31: disp_msg()
        !            32: {
        !            33: 
        !            34:        message(current_state);
        !            35: }
        !            36: 
        !            37: start_msgs()
        !            38: {
        !            39: 
        !            40:        message(current_state);
        !            41:        signal(SIGALRM, disp_msg);
        !            42:        itimer.it_value = itimer.it_interval = wait;
        !            43:        setitimer(ITIMER_REAL, &itimer, (struct timerval *)0);
        !            44: }
        !            45: 
        !            46: end_msgs()
        !            47: {
        !            48: 
        !            49:        signal(SIGALRM, SIG_IGN);
        !            50:        timerclear(&itimer.it_value);
        !            51:        timerclear(&itimer.it_interval);
        !            52:        setitimer(ITIMER_REAL, &itimer, (struct timerval *)0);
        !            53: }

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