class Lock {

    private val mutex = nativeHeap.alloc<pthread_mutex_t>()

    init {
        freeze()
        pthread_mutex_init(mutex.ptr, null)
    }

    fun lock() {
        pthread_mutex_lock(mutex.ptr)
    }

    fun unlock() {
        pthread_mutex_unlock(mutex.ptr)
    }

    fun destroy() {
        pthread_mutex_destroy(mutex.ptr)
        nativeHeap.free(mutex)
    }

    fun <T> use(block: () -> T): T {
        try {
            lock()
            return block()
        } finally {
            unlock()
        }
    }

}