Generating timer event

Generating timer event

APrince

Member #12,698

March 2011

Hi, I wanted to know, whether there's a way to generate timer event on my own. The thing is that I have something like:

while (ti->run){
  al_wait_for_event(queue, &ev);
  if (ti->run/* && (!*(ti->suspended))*/){
    if (ti->updater->update()) *(ti->refresh) = true;
  }
}

This code runs in separate thread. Now when I need to close the application, I just set ti->run to false and wait for the thread to exit (actually it is Win32 thread, I do not use allegro wrapper for this one, but I don't think that matters). The point is, that in the worst case I have to wait for the whole timer interval till the thread closes (because of it waiting for the event). So after setting ti->run from sepparate thread, I would also like to escape the al_wait_for_event (by generating the event on my own for example...). Now I suppose I could create my own event type (somehow - I know Allegro supports it but I haven't found out any tutorial on that...), but I really do not want to compliate things, so fireing the timer event on my own would suffice.

Thanks

SiegeLord

Member #7,827

October 2006

I doubt Allegro provides such a feature. I'd just use a user event, they are easy enough (see ex_user_events for more ideas). Just create your own source, register it and fire off a user event:

#SelectExpand
  1ALLEGRO_EVENT_SOURCE my_source;
  2al_init_user_event_source(&my_source);
  3
  4ALLEGRO_EVENT_QUEUE* queue = al_create_event_queue();
  5al_register_event_source(queue, &my_source);
  6
  7#define EVENT_QUIT ALLEGRO_GET_EVENT_TYPE('q', 'u', 'i', 't')
  8
  9ALLEGRO_EVENT my_event;
 10my_event.user.type = EVENT_QUIT;
 11al_emit_user_event(&my_source, &my_event, 0);
 12
 13ALLEGRO_EVENT event;
 14al_wait_for_event(queue, &event);
 15
 16al_destroy_user_event_source(&my_source);

"For in much wisdom is much grief: and he that increases knowledge increases sorrow."-Ecclesiastes 1:18
[SiegeLord's Abode][Codes]:[DAllegro5]:[RustAllegro]

APrince

Member #12,698

March 2011

OK, I'll try that out...
Thanks.

//edit: Works perfectly!