Function pthread_mutex_init

compat/os2threads.h:104–110

}

static av_always_inline int pthread_mutex_init(pthread_mutex_t *mutex,
                                               const pthread_mutexattr_t *attr)
{
    _fmutex_create(mutex, 0);

    return 0;
}

static av_always_inline int pthread_mutex_destroy(pthread_mutex_t *mutex)
{