c++11 多线程编程——如何实现线程安全队列

线程安全队列的接口文件如下: #include template class threadsafe_queue { public: threadsafe_queue(); threadsafe_queue(const threadsafe_queue&); threadsafe_queue& operator=(const threadsafe_queue&) = delete; void push(T new_value); bool try_pop(T& value); std::shared_ptr try_po