生产者和消费者使用互斥和pthreading

So I am having a little trouble with the producer and consumer problem with 2 threads and mutexes. What I am trying to do is have the producer fill an array with 10 1's. Then the consumer consumes each 1 and makes it a 0. This filling and emptying just repeats 10 times. Here is what I have so far but it gets stuck on the first cycle: So I am having a little trouble with the produc