8、C++ 原生线程与原语详解

C++ 原生线程与原语详解

1. 线程交换

在 C++ 中，线程的状态可以进行交换，示例代码如下：

std::cout << "thread 1 id: " << t1.get_id() << "\n";
std::cout << "thread 2 id: " << t2.get_id() << "\n";
std::swap(t1, t2);
std::cout << "Swapping threads..." << "\n";
std::cout << "thread 1 id: " << t1.get_id() << "\n";
std::cout << "thread 2 id: " << t2.get_id() << "\n";
t1.swap(t2);
std::cout << "Swapping threads..." << "\n";
std::cout << "thread 1 id: " << t1.get_id() << "\n";
std::cout << "thread 2 id: " << t2.get_id() << "\n";
t1.join();
t2.join();

可能的输出如下：

thread 1 id: 2
thread 2 id: 3
Swapping threads.