Check to see if a pthread mutex is locked or unlocked (After a thread has locked itself)

Question

I need to see if a mutex is locked or unlocked in an if statement so I check it like this...

if(mutex[id] != 2){
    /* do stuff */
}

but w

Answer 1

You can't compare a pthread_mutex_t with a int.

You can use

int pthread_mutex_trylock(pthread_mutex_t *mutex);

to check that.