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

al_create_mutex - Allegro 5 API

#include <allegro5/allegro.h>
ALLEGRO_MUTEX *al_create_mutex(void)
    

Create the mutex object (a mutual exclusion device). The mutex may or may not support “recursive” locking.

Returns the mutex on success or NULL on error.

al_create_mutex_recursive(3alleg5).

Allegro reference manual