[Libevent-users] Timeout Event Not Working?

[Donghua Xu]

Hi, I just wrote a simple program trying to use the timeout event in
libevent 2.0.3-alpha. The source code is at the end of the email. I'm
expecting to see a print out of "***in dummy_callback()", but this line does
not show up at all. What I am seeing is only:

***entering main()
***entering EventLoop()
***dummy_event=0x60e690
***exiting EventLoop()
***exiting main()

What am I doing wrong in the following source code? A lot of thanks in
advance...



#include <stdlib.h>
#include <stdio.h>
#include "event2/event.h"

struct event_base *global_event_base;

static void dummy_callback(evutil_socket_t fd, short what, void *arg)
{
  printf("***in dummy_callback()\n");
}

static void* EventLoop(void *arg)
{
  printf("***entering EventLoop()\n");
  global_event_base = event_base_new();
  if (!global_event_base) {
    printf("event_base_new() failed\n");
    exit (-1);
  }

  struct timeval five_seconds = {5,0};
  struct event *dummy_event =
    evtimer_new(global_event_base, dummy_callback, arg);

  printf("***dummy_event=%p\n", dummy_event);

  event_add(dummy_event, &five_seconds);

  int ret = event_base_loop(global_event_base, EVLOOP_NONBLOCK);
  if (ret!=0)
    printf("event_base_loop() failed\n");


  printf("***exiting EventLoop()\n");
  return NULL;
}

int main()
{
  printf("***entering main()\n");
  EventLoop(NULL);
  printf("***exiting main()\n");
  fflush(stdout);
  return 0;
}