forked from mirror/azerothcore-wotlk
Kargatum
81 lines
2.1 KiB
C++
81 lines
2.1 KiB
C++
/*
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* This file is part of the AzerothCore Project. See AUTHORS file for Copyright information
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Affero General Public License as published by the
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* Free Software Foundation; either version 3 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef CACHE_H
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#define CACHE_H
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#include "Define.h"
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#include "Model.h"
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#include "PolicyLock.h"
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#include "WorldModelRoot.h"
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#include <map>
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#include <mutex>
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#include <string>
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template<class K, class T>
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class GenericCache
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{
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public:
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GenericCache() {}
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static const uint32 FlushLimit = 300; // We can't get too close to filling up all the memory, and we have to be wary of the maximum number of open streams.
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void Insert(K key, T* val)
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{
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std::lock_guard<std::mutex> guard(mutex);
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if (_items.size() > FlushLimit)
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Clear();
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_items[key] = val;
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}
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T* Get(K key)
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{
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GUARD_RETURN(mutex, nullptr);
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typename std::map<K, T*>::iterator itr = _items.find(key);
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if (itr != _items.end())
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return itr->second;
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return nullptr;
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}
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void Clear()
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{
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for (typename std::map<K, T*>::iterator itr = _items.begin(); itr != _items.end(); ++itr)
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delete itr->second;
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_items.clear();
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}
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private:
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std::map<K, T*> _items;
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std::mutex mutex;
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};
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class CacheClass
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{
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public:
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CacheClass() {}
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GenericCache<std::string, Model> ModelCache;
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GenericCache<std::string, WorldModelRoot> WorldModelCache;
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void Clear()
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{
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ModelCache.Clear();
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WorldModelCache.Clear();
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}
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};
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extern CacheClass* Cache;
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#endif
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