#include <chrono>
#include <condition_variable>
#include <iostream>
#include <mutex>
#include <string_view>
#include <thread>
 
using namespace std::chrono_literals;
 
int main() {
    std::cout << std::boolalpha;
    auto print = [](std::string_view name, const std::stop_token &token) {
        std::cout << name << ": stop_possible = " << token.stop_possible();
        std::cout << ", stop_requested = " << token.stop_requested() << '\n';
    };
 
    // A worker thread that will listen to stop requests
    auto stop_worker = std::jthread([](std::stop_token stoken) {
        for (int i = 10; i; --i) {
            std::this_thread::sleep_for(300ms);
            if (stoken.stop_requested()) {
                std::cout << "  Sleepy worker is requested to stop\n";
                return;
            }
            std::cout << "  Sleepy worker goes back to sleep\n";
        }
    });
 
    // A worker thread that will only stop when completed
    auto inf_worker = std::jthread([]() {
        for (int i = 5; i; --i) {
            std::this_thread::sleep_for(300ms);
            std::cout << "  Run as long as we want\n";
        }
    });
 
    std::stop_token def_token;
    std::stop_token stop_token = stop_worker.get_stop_token();
    std::stop_token inf_token = inf_worker.get_stop_token();
    print("def_token ", def_token);
    print("stop_token", stop_token);
    print("inf_token ", inf_token);
 
    std::cout << "\nRequest and join stop_worker:\n";
    stop_worker.request_stop();
    stop_worker.join();
 
    std::cout << "\nRequest and join inf_worker:\n";
    inf_worker.request_stop();
    inf_worker.join();
    std::cout << '\n';
 
    print("def_token ", def_token);
    print("stop_token", stop_token);
    print("inf_token ", inf_token);
}