c++ std::thread + lambda 實現計時器

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 1 bool wait_for_wake = false; 2 std::mutex process_mutex; 3 std::condition_variable_any process_cond; 4 std::unique_lock<std::mutex> lock(process_mutex); 5 auto Timer = [&process_mutex, &process_cond](const int &wait_time) { 6   std::this_thread::sleep_for(std::chrono::milliseconds(wait_time)); 7   process_cond.notify_one(); 8 }; 9 10 // use11 auto wait_time = 50; 12 std::thread(Timer, wait_time).detach();13 wait_for_wake = true;14 15 while (wait_for_wake) {16   process_cond.wait(lock);17   wait_for_wake = false;18 }

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c++ std::thread + lambda 實現計時器