std::jthread:: detach

将执行线程与 jthread 对象分离，允许线程独立继续执行。所有已分配的资源在线程退出时将被释放。

调用 detach 后， * this 不再拥有任何线程。

参数

(无)

返回值

(无)

后置条件

joinable 为 false 。

异常

std::system_error 如果 joinable ( ) == false 或发生错误。

示例

#include <chrono>
#include <iostream>
#include <thread>
void independentThread() 
{
    std::cout << "Starting concurrent thread.\n";
    std::this_thread::sleep_for(std::chrono::seconds(2));
    std::cout << "Exiting concurrent thread.\n";
}
void threadCaller() 
{
    std::cout << "Starting thread caller.\n";
    std::jthread t(independentThread);
    t.detach();
    std::this_thread::sleep_for(std::chrono::seconds(1));
    std::cout << "Exiting thread caller.\n";
}
int main() 
{
    threadCaller();
    std::this_thread::sleep_for(std::chrono::seconds(5));
}

Starting thread caller.
Starting concurrent thread.
Exiting thread caller.
Exiting concurrent thread.

参考文献

参阅