C++ 线程类thread

c++ 线程类 thread

#include <thread>;
#include <chrono>
using namespace std;

void fun(int a){
    printf("thread %d " ,a);
    this_thread::sleep_for(chrono::second(1));
}

int main(){
    thread t(fun,1);
    t.join();
}

注：join 是线程等待，等待子线程结束后在继续执行；
线程等待要用sleep_for

线程抽象类

#include <thread>；
using namespace std；
class Thread{
public:
   std::thread::id get_id();
   void start();
   void join();
  virtual void query()；
   bool is_start;
private:
  thread th;
};
void Thread::start(){
   if(is_start == false) {
      thread t(std::bind(&Thread::query,this));
      th = std::move(t);
       is_start = true;
    }
}
void Thread::join(){
     th.join();
}

thread::id Thread::join(){
    return   th.get_id();
}