mirror of
https://github.com/TrinityCore/TrinityCore.git
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d41f87e62a
Fix a race condition in MMapManager happening whenever a map was unloaded. GridUnload enabled was required to trigger the race condition.
(cherry picked from commit aa042e94c2)
Conflicts:
src/server/collision/Management/MMapManager.cpp
src/server/collision/Management/MMapManager.h
129 lines
4.1 KiB
C++
129 lines
4.1 KiB
C++
/*
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* Copyright (C) 2008-2015 TrinityCore <http://www.trinitycore.org/>
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* Copyright (C) 2005-2010 MaNGOS <http://getmangos.com/>
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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 General Public License as published by the
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* Free Software Foundation; either version 2 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 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 _MMAP_MANAGER_H
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#define _MMAP_MANAGER_H
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#include "Define.h"
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#include "DetourAlloc.h"
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#include "DetourNavMesh.h"
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#include "DetourNavMeshQuery.h"
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#include "World.h"
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#include <string>
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#include <unordered_map>
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#include <set>
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// move map related classes
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namespace MMAP
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{
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typedef std::unordered_map<uint32, dtTileRef> MMapTileSet;
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typedef std::unordered_map<uint32, dtNavMeshQuery*> NavMeshQuerySet;
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typedef std::set<uint32> TerrainSet;
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struct NavMeshHolder
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{
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// Pre-built navMesh
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dtNavMesh* navMesh;
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// List of terrain swap map ids used to build the navMesh
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TerrainSet terrainIds;
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MMapTileSet loadedTileRefs;
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};
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struct PhasedTile
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{
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unsigned char* data;
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MmapTileHeader fileHeader;
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int32 dataSize;
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};
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typedef std::unordered_map<uint32, PhasedTile*> PhaseTileContainer;
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typedef std::unordered_map<uint32, PhaseTileContainer> PhaseTileMap;
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typedef std::unordered_map<uint32, TerrainSet> TerrainSetMap;
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class MMapData
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{
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public:
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MMapData(dtNavMesh* mesh, uint32 mapId);
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~MMapData();
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dtNavMesh* GetNavMesh(TerrainSet swaps);
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// we have to use single dtNavMeshQuery for every instance, since those are not thread safe
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NavMeshQuerySet navMeshQueries; // instanceId to query
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dtNavMesh* navMesh;
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MMapTileSet loadedTileRefs;
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TerrainSetMap loadedPhasedTiles;
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private:
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uint32 _mapId;
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PhaseTileContainer _baseTiles;
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std::set<uint32> _activeSwaps;
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void RemoveSwap(PhasedTile* ptile, uint32 swap, uint32 packedXY);
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void AddSwap(PhasedTile* tile, uint32 swap, uint32 packedXY);
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};
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typedef std::unordered_map<uint32, MMapData*> MMapDataSet;
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// singleton class
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// holds all all access to mmap loading unloading and meshes
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class MMapManager
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{
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public:
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MMapManager() : loadedTiles(0), thread_safe_environment(true) {}
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~MMapManager();
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void InitializeThreadUnsafe(const std::vector<uint32>& mapIds);
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bool loadMap(const std::string& basePath, uint32 mapId, int32 x, int32 y);
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bool unloadMap(uint32 mapId, int32 x, int32 y);
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bool unloadMap(uint32 mapId);
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bool unloadMapInstance(uint32 mapId, uint32 instanceId);
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// the returned [dtNavMeshQuery const*] is NOT threadsafe
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dtNavMeshQuery const* GetNavMeshQuery(uint32 mapId, uint32 instanceId, TerrainSet swaps);
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dtNavMesh const* GetNavMesh(uint32 mapId, TerrainSet swaps);
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uint32 getLoadedTilesCount() const { return loadedTiles; }
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uint32 getLoadedMapsCount() const { return loadedMMaps.size(); }
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void LoadPhaseTiles(uint32 mapId, int32 x, int32 y);
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void UnloadPhaseTile(uint32 mapId, int32 x, int32 y);
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PhaseTileContainer GetPhaseTileContainer(uint32 mapId) { return _phaseTiles[mapId]; }
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private:
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bool loadMapData(uint32 mapId);
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uint32 packTileID(int32 x, int32 y);
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MMapDataSet::const_iterator GetMMapData(uint32 mapId) const;
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MMapDataSet loadedMMaps;
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uint32 loadedTiles;
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bool thread_safe_environment;
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PhasedTile* LoadTile(uint32 mapId, int32 x, int32 y);
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PhaseTileMap _phaseTiles;
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};
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}
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#endif |