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Diffstat (limited to 'src/common/Utilities/AsyncCallbackProcessor.h')
-rw-r--r-- | src/common/Utilities/AsyncCallbackProcessor.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/src/common/Utilities/AsyncCallbackProcessor.h b/src/common/Utilities/AsyncCallbackProcessor.h new file mode 100644 index 00000000000..76781f49425 --- /dev/null +++ b/src/common/Utilities/AsyncCallbackProcessor.h @@ -0,0 +1,63 @@ +/* + * This file is part of the TrinityCore Project. See AUTHORS file for Copyright information + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along + * with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef AsyncCallbackProcessor_h__ +#define AsyncCallbackProcessor_h__ + +#include "Define.h" +#include <algorithm> +#include <vector> + +//template <class T> +//concept AsyncCallback = requires(T t) { { t.InvokeIfReady() } -> std::convertible_to<bool> }; + +template<typename T> // requires AsyncCallback<T> +class AsyncCallbackProcessor +{ +public: + AsyncCallbackProcessor() = default; + ~AsyncCallbackProcessor() = default; + + T& AddCallback(T&& query) + { + _callbacks.emplace_back(std::move(query)); + return _callbacks.back(); + } + + void ProcessReadyCallbacks() + { + if (_callbacks.empty()) + return; + + std::vector<T> updateCallbacks{ std::move(_callbacks) }; + + updateCallbacks.erase(std::remove_if(updateCallbacks.begin(), updateCallbacks.end(), [](T& callback) + { + return callback.InvokeIfReady(); + }), updateCallbacks.end()); + + _callbacks.insert(_callbacks.end(), std::make_move_iterator(updateCallbacks.begin()), std::make_move_iterator(updateCallbacks.end())); + } + +private: + AsyncCallbackProcessor(AsyncCallbackProcessor const&) = delete; + AsyncCallbackProcessor& operator=(AsyncCallbackProcessor const&) = delete; + + std::vector<T> _callbacks; +}; + +#endif // AsyncCallbackProcessor_h__ |