#include<iostream>#include<thread>#include<chrono>usingnamespacestd::chrono_literals;voidfoo(){ std::this_thread::sleep_for(500ms); }intmain(){ std::cout << std::boolalpha; std::thread t; std::cout <<"before starting, joinable: "<< t.joinable() <<'\n'; t = std::thread{foo...
#include <iostream> #include <thread> #include <chrono> void foo() { std::this_thread::sleep_for(std::chrono::seconds(1)); } int main() { std::thread t; std::cout << "before starting, joinable: " << std::boolalpha << t.joinable() << '\n'; t = std::thread(foo); st...
std::thread&get() {returnm_thread; }private: std::thread m_thread; DtorAction m_action; }; ThreadRAII构造函数接收std::thread rvalue,因为std::thread不可复制,调用move之后,传进来的std::thread就变成了unjoinable的,执行任务就转移给了ThreadRAII的std::thread。 有了ThreadRAII,就可以安全地使用std...
std::thread:: Create account std::thread::joinable booljoinable()constnoexcept; (since C++11) Checks if thestd::threadobject identifies an active thread of execution. Specifically, returnstrueifget_id()!=std::thread::id(). So a default constructedthreadis not joinable....
std::cout <<"Starting thread: "<< std::endl;while(1) {} }));while(!thread_ptr->joinable()){} std::cout << thread_ptr->joinable() << std::endl; thread_ptr.release(); std::cout <<"Main is still alive!"<< std::endl;return0; ...
std::thread::joinable booljoinable()constnoexcept; (C++11 起) 检查std::thread对象是否标识活跃的执行线程。具体而言,若get_id()!=std::thread::id()则返回true。故默认构造的 thread 不可结合。 结束执行代码,但仍未结合的线程仍被当作活跃的执行线程,从而可结合。
#include <iostream> #include <thread> #include <chrono> void foo() { std::this_thread::sleep_for(std::chrono::seconds(1)); } int main() { std::thread t; std::cout << "before starting, joinable: " << std::boolalpha << t.joinable() << '\n'; t = std::thread(foo); st...