mirror of
https://github.com/esp8266/Arduino.git
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85 lines
2.4 KiB
C++
85 lines
2.4 KiB
C++
#ifndef __CALLBACKLIST_H__
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#define __CALLBACKLIST_H__
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/*
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CallBackList, An implementation for handling callback execution
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Copyright (c) 2019 Herman Reintke. All rights reserved.
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This file is part of the esp8266 core for Arduino environment.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <Arduino.h>
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#include <memory>
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#include <list>
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#include <utility>
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namespace experimental
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{
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namespace CBListImplentation
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{
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template<class cbFunctionT>
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class CallBackList
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{
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public:
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CallBackList (){};
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struct CallBackInfo
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{
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CallBackInfo(cbFunctionT f) : cbFunction(f, true){};
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CallBackInfo(cbFunctionT f, bool ar) : cbFunction(f), _allowRemove(ar) {};
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cbFunctionT cbFunction;
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bool _allowRemove = true;
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bool allowRemove()
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{
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return _allowRemove;
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}
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};
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using CallBackHandler = std::shared_ptr<CallBackInfo> ;
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std::list<CallBackHandler> callBackEventList;
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CallBackHandler add(cbFunctionT af, bool ad = true) {
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CallBackHandler handler = std::make_shared<CallBackInfo>(CallBackInfo(af,ad));
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callBackEventList.emplace_back(handler);
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return handler;
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}
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void remove(CallBackHandler& dh) {
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callBackEventList.remove(dh);
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}
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template<typename... Args>
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int execute(Args... params) {
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for(auto it = std::begin(callBackEventList); it != std::end(callBackEventList); ) {
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CallBackHandler &handler = *it;
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if (handler->allowRemove() && handler.unique()) {
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it = callBackEventList.erase(it);
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}
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else {
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handler->cbFunction(params...);
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++it;
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}
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}
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return callBackEventList.size();
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}
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};
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} //CBListImplementation
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}//experimental
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#endif // __CALLBACKLIST_H__
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