Linux C++ 面向对象多线程编程实例之“生产者-消费者”

Linux C++ 面向对象多线程编程实例之“生产者-消费者”

问题1：

生产者-消费者模型

解决方案：

两个线程，一个共享变量。

源码：

#include #include using namespace std; //The Number of Products. volatile int _nCurrProductor = 0; //Action Lock. pthread_mutex_t _dealmutex;   void* producer(void *arg) {     while(true)     {         pthread_mutex_lock(&_dealmutex);         _nCurrProductor ++;         cout<<"I Produced One."<         pthread_mutex_unlock(&_dealmutex);     } }   void* customer(void *arg) {     while(true)     {         pthread_mutex_lock(&_dealmutex);         if(_nCurrProductor > 0)         {             _nCurrProductor --;             cout<<"Haha, I Ate One."<         }         else         {             cout<<"Baby, Come On. I am hungry."<         }         pthread_mutex_unlock(&_dealmutex);     } }   int main(int argc, char** argv) {     cout<<"Let's Go!!!"<     pthread_mutex_init(&_dealmutex, NULL);       pthread_t pt1;     pthread_t pt2;     int pret2 = pthread_create(&pt2, NULL, customer, NULL);     int pret1 = pthread_create(&pt1, NULL, producer, NULL);     if(pret1 != 0 || pret2 != 0)     {         cout<<"Thread Create Failed."<         exit(1);     }       while(true)     {       }       pthread_join(pt1, NULL);     pthread_join(pt2, NULL);       cout<<"Game Over!"<     return 0; }

 

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