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libevent

    1: /*
    2:  * Compile with:
    3:  * cc -I/usr/local/include -o time-test time-test.c -L/usr/local/lib -levent
    4:  */
    5: 
    6: #include <sys/types.h>
    7: 
    8: #ifdef HAVE_CONFIG_H
    9: #include "config.h"
   10: #endif
   11: 
   12: #include <sys/stat.h>
   13: #ifndef WIN32
   14: #include <sys/queue.h>
   15: #include <unistd.h>
   16: #endif
   17: #include <time.h>
   18: #ifdef HAVE_SYS_TIME_H
   19: #include <sys/time.h>
   20: #endif
   21: #include <fcntl.h>
   22: #include <stdlib.h>
   23: #include <stdio.h>
   24: #include <string.h>
   25: #include <errno.h>
   26: 
   27: #include <event.h>
   28: #include <evutil.h>
   29: 
   30: int lasttime;
   31: 
   32: static void
   33: timeout_cb(int fd, short event, void *arg)
   34: {
   35: 	struct timeval tv;
   36: 	struct event *timeout = arg;
   37: 	int newtime = time(NULL);
   38: 
   39: 	printf("%s: called at %d: %d\n", __func__, newtime,
   40: 	    newtime - lasttime);
   41: 	lasttime = newtime;
   42: 
   43: 	evutil_timerclear(&tv);
   44: 	tv.tv_sec = 2;
   45: 	event_add(timeout, &tv);
   46: }
   47: 
   48: int
   49: main (int argc, char **argv)
   50: {
   51: 	struct event timeout;
   52: 	struct timeval tv;
   53:  
   54: 	/* Initalize the event library */
   55: 	event_init();
   56: 
   57: 	/* Initalize one event */
   58: 	evtimer_set(&timeout, timeout_cb, &timeout);
   59: 
   60: 	evutil_timerclear(&tv);
   61: 	tv.tv_sec = 2;
   62: 	event_add(&timeout, &tv);
   63: 
   64: 	lasttime = time(NULL);
   65: 	
   66: 	event_dispatch();
   67: 
   68: 	return (0);
   69: }
   70: