al_destroy_thread - Man Page

#include <allegro5/allegro.h>

void al_destroy_thread(ALLEGRO_THREAD *thread)

Free the resources used by a thread. Implicitly performs al_join_thread(3) on the thread if it hasn’t been done already.

Does nothing if thread is NULL.

al_join_thread(3).

al_join_thread(3), al_run_detached_thread(3).