线程安全队列

template <typename T>
class  {
public:
         void Insert(T value);
         void Popup(T &value);
         bool Empety();
 
private:
       mutable std::mutex mut_;
       std::queue<T> que_;
       std::condition_variable cond_;
};

// thread_safe_queue.cpp
template <typename T>
void ThreadSafeQueue::Insert(T value) {
        std::lock_guard<std::mutex> lk(mut_);
        que_.push_back(value);
        cond_.notify_one();
}
 
 
template <typename T>
void ThreadSafeQueue::Popup(T &value) {
    std::unique_lock<std::mutex> lk(mut_);
 cond_.wait(lk, [this]{return !que_.empety();});
    value = que_.front();
    que_.pop();
}
 
 
template <typename T>
bool ThreadSafeQueue::Empty() const {
        std::lock_guard<std::mutex> lk(mut_);
        return que_.empty();
}