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Annotation of 42BSD/ucb/talk/msgs.c, revision 1.1.1.1

1.1       root        1: /* $Header: /a/guest/moore/talk/RCS/msgs.c,v 1.4 83/07/06 00:17:22 moore Exp $ */
                      2: 
                      3: /* 
                      4:  * a package to display what is happening every MSG_INTERVAL seconds
                      5:  * if we are slow connecting.
                      6:  */
                      7: 
                      8: #include <signal.h>
                      9: #include <stdio.h>
                     10: #include <sys/time.h>
                     11: #include "talk.h"
                     12: 
                     13: #define MSG_INTERVAL 4
                     14: #define LONG_TIME 100000
                     15: 
                     16: char *current_state;
                     17: int current_line = 0;
                     18: 
                     19: static struct itimerval itimer;
                     20: static struct timeval wait = { MSG_INTERVAL , 0};
                     21: static struct timeval undo = { LONG_TIME, 0};
                     22:     
                     23: 
                     24: disp_msg()
                     25: {
                     26:     message(current_state);
                     27: }
                     28: 
                     29: start_msgs()
                     30: {
                     31:     message(current_state);
                     32:     signal(SIGALRM, disp_msg);
                     33:     itimer.it_value = itimer.it_interval = wait;
                     34:     setitimer(ITIMER_REAL, &itimer, (struct timerval *)0);
                     35: }
                     36: 
                     37: end_msgs()
                     38: {
                     39:     signal(SIGALRM, SIG_IGN);
                     40:     timerclear(&itimer.it_value);
                     41:     timerclear(&itimer.it_interval);
                     42:     setitimer(ITIMER_REAL, &itimer, (struct timerval *)0);
                     43: }

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