33 lines
2.3 KiB
Markdown
33 lines
2.3 KiB
Markdown
[stopcallback.inplace.general]
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# 32 Concurrency support library [[thread]](./#thread)
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## 32.3 Stop tokens [[thread.stoptoken]](thread.stoptoken#stopcallback.inplace.general)
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### 32.3.10 Class template inplace_stop_callback [[stopcallback.inplace]](stopcallback.inplace#general)
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#### 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]](stopcallback.inplace.cons "32.3.10.2 Constructors and destructor"), constructors and destructortemplate<class Initializer>explicit inplace_stop_callback(inplace_stop_token st, Initializer&& init)noexcept(is_nothrow_constructible_v<CallbackFn, Initializer>); ~inplace_stop_callback();
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inplace_stop_callback(inplace_stop_callback&&) = delete;
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inplace_stop_callback(const inplace_stop_callback&) = delete;
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inplace_stop_callback& operator=(inplace_stop_callback&&) = delete;
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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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[1](#1)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/threads.tex#L1352)
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*Mandates*: CallbackFn satisfies both[invocable](concept.invocable#concept:invocable "18.7.2 Concept invocable [concept.invocable]") and [destructible](concept.destructible#concept:destructible "18.4.10 Concept destructible [concept.destructible]")[.](#1.sentence-1)
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[2](#2)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/threads.tex#L1357)
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*Remarks*: For a type Initializer, if[*stoppable-callback-for*](stoptoken.concepts#concept:stoppable-callback-for "32.3.3 Stop token concepts [stoptoken.concepts]")<CallbackFn, inplace_stop_token, Initializer> is satisfied, then[*stoppable-callback-for*](stoptoken.concepts#concept:stoppable-callback-for "32.3.3 Stop token concepts [stoptoken.concepts]")<CallbackFn, inplace_stop_token, Initializer> is modeled[.](#2.sentence-1)
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For an inplace_stop_callback<CallbackFn> object,
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the exposition-only *callback-fn* member is
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its associated callback function ([[stoptoken.concepts]](stoptoken.concepts "32.3.3 Stop token concepts"))[.](#2.sentence-2)
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