Method Stop

async_simple/coro/test/ResumeByScheduleTest.cpp:65–74

    }

    void Stop() {
        std::unique_lock<std::mutex> guard(this->mut_);
        if (stop_ == true) {
            return;
        }
        stop_ = true;
        cv_.notify_one();
        guard.unlock();
        backend_.join();
    }

private:
    std::thread backend_;