std::this_thread::get_id

 

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this_thread 命名空间
get_id (C++11) yield (C++11)	sleep_for (C++11) sleep_until (C++11)
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定义于头文件 <thread>
std::thread::id get_id() noexcept;		(C++11 起)

返回当前线程的 id 。

参数

（无）

返回值

当前线程的 id

示例

运行此代码

#include <iostream>
#include <thread>
#include <chrono>
#include <mutex>
 
std::mutex g_display_mutex;
 
void foo()
{
    std::thread::id this_id = std::this_thread::get_id();
 
    g_display_mutex.lock();
    std::cout << "thread " << this_id << " sleeping...\n";
    g_display_mutex.unlock();
 
    std::this_thread::sleep_for(std::chrono::seconds(1));
}
 
int main()
{
    std::thread t1(foo);
    std::thread t2(foo);
 
    t1.join();
    t2.join();
}

可能的输出：

thread 0x2384b312 sleeping...
thread 0x228a10fc sleeping...

参阅

get_id

返回线程的 id (std::{{{1}}} 的公开成员函数)