root/third_party/libevent/test/test-time.c

DEFINITIONS

1. rand_int
2. time_cb
3. main

/*
 * Compile with:
 * cc -I/usr/local/include -o time-test time-test.c -L/usr/local/lib -levent
 */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#ifdef WIN32
#include <winsock2.h>
#endif

#include <sys/types.h>
#include <sys/stat.h>
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <errno.h>

#include <event.h>

int called = 0;

#define NEVENT  20000

struct event *ev[NEVENT];

static int
rand_int(int n)
{
#ifdef WIN32
        return (int)(rand() * n);
#else
        return (int)(random() % n);
#endif
}

static void
time_cb(int fd, short event, void *arg)
{
        struct timeval tv;
        int i, j;

        called++;

        if (called < 10*NEVENT) {
                for (i = 0; i < 10; i++) {
                        j = rand_int(NEVENT);
                        tv.tv_sec = 0;
                        tv.tv_usec = rand_int(50000);
                        if (tv.tv_usec % 2)
                                evtimer_add(ev[j], &tv);
                        else
                                evtimer_del(ev[j]);
                }
        }
}

int
main (int argc, char **argv)
{
        struct timeval tv;
        int i;

        /* Initalize the event library */
        event_init();

        for (i = 0; i < NEVENT; i++) {
                ev[i] = malloc(sizeof(struct event));

                /* Initalize one event */
                evtimer_set(ev[i], time_cb, ev[i]);
                tv.tv_sec = 0;
                tv.tv_usec = rand_int(50000);
                evtimer_add(ev[i], &tv);
        }

        event_dispatch();

        return (called < NEVENT);
}