al_set_thread_should_stop - Allegro 5 API

       Set the flag to indicate thread should stop.  Returns immediately.

       al_set_thread_should_stop - Allegro 5 API

al_join_thread(3alleg5), al_get_thread_should_stop(3alleg5).

Allegro reference manual                                                      al_set_thread_should_stop(3alleg5)

              #include <allegro5/allegro.h>

              void al_set_thread_should_stop(ALLEGRO_THREAD *thread)