.TH "al_unlock_mutex(3alleg5) Allegro reference manual" "" "" "" "" .SH NAME .PP al_unlock_mutex \- Allegro 5 API .SH SYNOPSIS .IP .nf \f[C] #include\ void\ al_unlock_mutex(ALLEGRO_MUTEX\ *mutex) \f[] .fi .SH DESCRIPTION .PP Release the lock on \f[C]mutex\f[] if the calling thread holds the lock on it. .PP If the calling thread doesn\[aq]t hold the lock, or if the mutex is not locked, undefined behaviour results. .SH SEE ALSO .PP al_lock_mutex(3alleg5).