TrinityCore
AsyncCallbackProcessor.h
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1/*
2 * This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License as published by the
6 * Free Software Foundation; either version 2 of the License, or (at your
7 * option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along
15 * with this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18#ifndef AsyncCallbackProcessor_h__
19#define AsyncCallbackProcessor_h__
20
21#include <algorithm>
22#include <vector>
23
24//template <class T>
25//concept AsyncCallback = requires(T t) { { t.InvokeIfReady() } -> std::convertible_to<bool> };
26
27template<typename T> // requires AsyncCallback<T>
29{
30public:
33
34 T& AddCallback(T&& query)
35 {
36 _callbacks.emplace_back(std::move(query));
37 return _callbacks.back();
38 }
39
41 {
42 if (_callbacks.empty())
43 return;
44
45 std::vector<T> updateCallbacks{ std::move(_callbacks) };
46
47 updateCallbacks.erase(std::remove_if(updateCallbacks.begin(), updateCallbacks.end(), [](T& callback)
48 {
49 return callback.InvokeIfReady();
50 }), updateCallbacks.end());
51
52 _callbacks.insert(_callbacks.end(), std::make_move_iterator(updateCallbacks.begin()), std::make_move_iterator(updateCallbacks.end()));
53 }
54
55private:
58
59 std::vector<T> _callbacks;
60};
61
62#endif // AsyncCallbackProcessor_h__
~AsyncCallbackProcessor()=default
AsyncCallbackProcessor & operator=(AsyncCallbackProcessor const &)=delete
AsyncCallbackProcessor()=default
AsyncCallbackProcessor(AsyncCallbackProcessor const &)=delete