linux 环境下编写的生产者--消费者问题-linux environment, prepared by the producer- consumer problem

linx多线程编程，实现一个多线程生产者消费者模型，用信号量处理线程间的同步和互斥问题。-Linx multithreaded programming, the realization of a multi thread producer consumer model, process synchronization and mutual exclusion problem among threads using signal volume