c++11多线程应用之简易智能计数器

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一 代码组织

二 代码详解

1. smartcounter.cpp

/*************************************************************************
    > File Name: thread.cpp
    > Author: wangzhicheng
    > Mail: 2363702560@qq.com 
    > Created Time: Wed 25 Feb 2015 09:38:30 PM WST
 ************************************************************************/

#include <iostream>
#include <vector>
#include <thread>
#include <mutex>
#include <functional>
using namespace std;
class SmartCounter {
	private:
		int cnt;
		mutex mymutex;
	public:
		SmartCounter() {
			cnt = 0;
		}
		void inc() {
			std::lock_guard<std::mutex>guard(mymutex);
			while(cnt < 1e6) cnt++;
		}
		void show() const {
			cout << cnt << endl;
		}
};
int main() {
	SmartCounter counter;
	vector<thread>threads;
	int i;
	for(i = 0;i < 16;i++) {
		threads.push_back(thread(bind(&SmartCounter::inc, &counter)));
	}
	for(i = 0;i < 16;i++) {
		threads[i].join();
	}
	counter.show();

	return 0;
}

CC=g++
all:
	$(CC) -std=c++0x -g -o smartcounter smartcounter.cpp -pthread

c++11多线程应用之简易智能计数器

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原文地址：http://blog.csdn.net/wangzhicheng1983/article/details/43941269