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ProducerAndConsumer

简单的生产者消费者示例

伪代码如下: void producer() { while (true)    { … produce an item in nextp; …   P(empty); P(mutex); buffer(in)=nextp; in=(in+1)mod% n; V(mutex); V(full); } }

void consumer() { while (true) { P(full); P(mutex); nextc=buffer(out); out=(out+1) % n; V(mutex); V(empty); consume the item in nextc; } }

产品放入缓冲区后通过V操作唤醒等待产品的消费者进程,产品消费后通过V操作唤醒等待空缓冲区的生产者进程。

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