32 Concurrency support library [thread]

32.3 Stop tokens [thread.stoptoken]

32.3.10 Class template inplace_stop_callback [stopcallback.inplace]

32.3.10.1 General [stopcallback.inplace.general]

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namespace std { template<class CallbackFn> class inplace_stop_callback { public: using callback_type = CallbackFn; // [stopcallback.inplace.cons], constructors and destructor template<class Initializer> explicit inplace_stop_callback(inplace_stop_token st, Initializer&& init) noexcept(is_nothrow_constructible_v<CallbackFn, Initializer>); ~inplace_stop_callback(); inplace_stop_callback(inplace_stop_callback&&) = delete; inplace_stop_callback(const inplace_stop_callback&) = delete; inplace_stop_callback& operator=(inplace_stop_callback&&) = delete; inplace_stop_callback& operator=(const inplace_stop_callback&) = delete; private: CallbackFn callback-fn; // exposition only }; template<class CallbackFn> inplace_stop_callback(inplace_stop_token, CallbackFn) -> inplace_stop_callback<CallbackFn>; }
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Mandates: CallbackFn satisfies both invocable and destructible.
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Remarks: For a type Initializer, if stoppable-callback-for<CallbackFn, inplace_stop_token, Initializer> is satisfied, then stoppable-callback-for<CallbackFn, inplace_stop_token, Initializer> is modeled.
For an inplace_stop_callback<CallbackFn> object, the exposition-only callback-fn member is its associated callback function ([stoptoken.concepts]).