DOKK / manpages / debian 10 / allegro5-doc / al_set_thread_should_stop.3alleg5.en
al_set_thread_should_stop(3alleg5) al_set_thread_should_stop(3alleg5)

al_set_thread_should_stop - Allegro 5 API

#include <allegro5/allegro.h>
void al_set_thread_should_stop(ALLEGRO_THREAD *thread)
    

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

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

Allegro reference manual