RAII 封装的 thread

class ThreadRAII { public: // whether join or detach should be called, // when a this object is destroyed. enum class DtorAction { join, detach }; ThreadRAII(std::thread&& t, DtorAction a) : action_(a), t_(std::move(t)) {} ThreadRAII (ThreadRAII&&) = default; ThreadRAII& operator=(ThreadRAII&&) = default; ~ThreadRAII() { if (t_.joinable()) { if (action_ == DtorAction::join) { t_.join(); } else { t_.detach(); } } } std::thread& get() { return t_; } private: DtorAction action_; std::thread t_; };