STL的queue多线程下是不安全的，当然网上有很多无锁队列，如boost::lockfree::queue就是很好的东西。这里实现一个互斥锁的线程安全队列，基于STL的QUEUE。
/************************************************************************************************ File Name : thread_safe_queue.hpp Version : Initial Draft Author : yang yang Created : 2017.06.08 Last Modified: 2017.06.08 Description : A thread safe queue,use the queue of STL,and Boost. ************************************************************************************************/ #ifndef THREAD_SAFE_QUEUE_HPP #define THREAD_SAFE_QUEUE_HPP #include <queue> #include <boost/thread.hpp> #include <boost/lambda/lambda.hpp> template <typename T> class ThreadSafeQueue { private: std::queue<T> queue; boost::mutex mutex; public: ThreadSafeQueue(){}; ThreadSafeQueue(const ThreadSafeQueue &other) { boost::mutex::scoped_lock lock(other.mutex); queue = other.queue; } ~ThreadSafeQueue(){}; void Push(T &new_value) { boost::mutex::scoped_lock lock(mutex); queue.push(new_value); condition.notify_one(); } void Pop(T &value) { boost::mutex::scoped_lock lock(mutex); value = queue.front(); queue.pop(); } bool TryPop(T &value) { boost::mutex::scoped_lock lock(mutex); if( queue.empty()) { return false; } else { value = queue.front(); queue.pop(); return true; } } bool Empty() { boost::mutex::scoped_lock lock(mutex); return queue.empty(); } }; #endif