C++11实现生产者和消费者

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#include <iostream>#include <thread>#include <mutex>#include <deque>#include <vector>#include <condition_variable>#include <unistd.h>class CThreadMsg{private:std::deque<int> m_data;std::mutex m_mtx; // 全局互斥锁.std::condition_variable m_cv; // 全局条件变量.int       m_nGen;public:void send_all(){m_cv.notify_all();}void send(){std::unique_lock <std::mutex> lck(m_mtx);m_nGen = ++m_nGen % 1000;printf("product %d\n", m_nGen);m_data.push_back(m_nGen);lck.unlock();m_cv.notify_one();}void ConsumerRecv(){while (true){sleep(5);std::unique_lock <std::mutex> lck(m_mtx);while (m_data.empty()){m_cv.wait(lck);}int nData = m_data.front();m_data.pop_front();printf("consume %d\n", nData);lck.unlock();}}public:CThreadMsg(){m_data.clear();m_nGen = 0;}virtual ~CThreadMsg(){send_all();}void Start(){std::thread t(&CThreadMsg::ConsumerRecv, this);t.detach();}};int main(){CThreadMsg test;test.Start();int i = 10;while(1){i--;if(i> 0)    test.send();sleep(1);}return 0;}

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