消息队列测试代码

#include "Queue.h"#include <iostream>void produce(Queue<int>& q) {  for (int i = 0; i< 10000; ++i) {    std::cout << "Pushing " << i << "\n";    q.push(i);  }}void consume(Queue<int>& q, unsigned int id) {  for (int i = 0; i< 2500; ++i) {    auto item = q.pop();    std::cout << "Consumer " << id << " popped " << item << "\n";  }}#include <thread>int main(){  Queue<int> q;  using namespace std::placeholders;  // producer thread  std::thread prod1(std::bind(produce, std::ref(q)));  // consumer threads  std::thread consumer1(std::bind(&consume, std::ref(q), 1));  std::thread consumer2(std::bind(&consume, std::ref(q), 2));  std::thread consumer3(std::bind(&consume, std::ref(q), 3));  std::thread consumer4(std::bind(&consume, std::ref(q), 4));  prod1.join();  consumer1.join();  consumer2.join();  consumer3.join();  consumer4.join();}