c++11 thread 封装线程类

c++ thread也挺好用的，也可以像qt thread那样，start启动，run函数为线程的实际运行代码。thread和this_thread方法不多，常用的就几个。

1.std::this_thread::get_id 获取线程id

2.yield,和sleep。yield，交出cpu占有权，一般可以放到多线程的循环里，减少cpu空转

3.一般代码构建完thread，线程跑起来detach一下，qt是默认会detach的。join实际代码一般不用，就主线程等待其他多个线程结束会用到下。

#include <thread>

class TestThread
{
public:
void start(){
thread t(std::bind(&TestThread::run,this));
t.detach();
}

void run(){
while (true){
cout << "test thread id:" << std::this_thread::get_id()<<endl;
std::this_thread::sleep_for(std::chrono::milliseconds(2000));
}
}
};

void run(){
while (true){
cout << "function thread id:" << std::this_thread::get_id() << endl;
std::this_thread::sleep_for(std::chrono::milliseconds(2000));
}
}

int main(void)
{
cout << "main thread id:" << std::this_thread::get_id() << endl;

TestThread testThread;
testThread.start();

thread funcThread(&run);
funcThread.detach();

getchar();
return 0;
}