/**
 * @file thread_3.cpp
 * @brief ݲ
*/

#include <iostream> 
#include <thread>

using namespace std;

class Widget
{
public:
	mutable int v = 0;

	Widget() : v(0) { cout << "Widget(), thread id = " << this_thread::get_id() << endl; }
	Widget(int i) : v(i) { cout << "Widget(int i), thread id = " << this_thread::get_id() << endl; }
	Widget(const Widget& w) : v(w.v) { cout << "Widget(const Widget& w), thread id = " << this_thread::get_id() << endl; }
	Widget(Widget&& w) noexcept {
		v = w.v;
		cout << "Widget(Widget&& w), thread id = " << this_thread::get_id() << endl;
	}

	void func(const string& s) { cout << "void func(string& s),  thread id = " << std::this_thread::get_id() << endl; }	
};

void fun(const Widget& w) {

	this_thread::sleep_for(chrono::milliseconds(1000));

	cout << "thread id = " << this_thread::get_id() << " begin." << endl;
	cout << "w.v = " << ++w.v << endl; 
	cout << "thread id = " << this_thread::get_id() << " endl." << endl;
}

void implicit(const Widget& w)
{
	cout << "implicit, thread id =" << std::this_thread::get_id() << endl;
}

int main()
{
	cout << "main thread id = " << this_thread::get_id() << " begin." << endl;
	Widget w;

	cout << "----------------------- thread 1 ----------------------- " << endl;
	thread t1(fun, w);
	t1.join();
	cout << "after thread w.v = " << w.v << endl;

	cout << "----------------------- thread 2 ----------------------- " << endl;
	thread t2(fun, ref(w)); 
	t2.join();
	cout << "after thread w.v = " << w.v << endl;

	cout << "----------------------- thread 3 ----------------------- " << endl;
	const char* name = "asdf";
	thread t3(&Widget::func, &w, name);
	t3.detach(); 

	cout << "----------------------- thread 4 ----------------------- " << endl;
	thread t4(&Widget::func, &w, string(name));
	t4.join();
	
	cout << "----------------------- thread 5 ----------------------- " << endl;
	thread t5(implicit, 1);
	t5.join();

	cout << endl << "main thread id = " << this_thread::get_id() << " end." << endl;
	
	return 0;
}