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Chunks are now stored with unique_ptr rather than shared_ptr.

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This commit is contained in:
David Williams
2015-03-08 23:30:12 +01:00
parent c98ad8c948
commit 72abcd8e9c
2 changed files with 38 additions and 25 deletions
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10
include/PolyVox/PagedVolume.h
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@@ -281,7 +281,7 @@ namespace PolyVox
PagedVolume& operator=(const PagedVolume& rhs);
private:
std::shared_ptr<Chunk> getChunk(int32_t uChunkX, int32_t uChunkY, int32_t uChunkZ) const;
Chunk* getChunk(int32_t uChunkX, int32_t uChunkY, int32_t uChunkZ) const;
void purgeNullPtrsFromAllChunks(void) const;
@@ -299,14 +299,16 @@ namespace PolyVox
//
// TODO: Do we really need maps here? It means we are storing the chunk positions in the map, but they are also stored in the
// chunks themselves (so they can be passed to the pager from the chunks destructor). Can we use a set here? What is a better approach?
typedef std::unordered_map<Vector3DInt32, std::weak_ptr< Chunk > > WeakPtrChunkMap;
/*typedef std::unordered_map<Vector3DInt32, std::weak_ptr< Chunk > > WeakPtrChunkMap;
mutable WeakPtrChunkMap m_pAllChunks;
typedef std::unordered_map<Vector3DInt32, std::shared_ptr< Chunk > > SharedPtrChunkMap;
mutable SharedPtrChunkMap m_pRecentlyUsedChunks;
mutable SharedPtrChunkMap m_pRecentlyUsedChunks;*/
mutable std::unordered_map<Vector3DInt32, std::unique_ptr< Chunk > > m_mapChunks;
mutable uint32_t m_uTimestamper = 0;
mutable Vector3DInt32 m_v3dLastAccessedChunkPos = Vector3DInt32(0, 0, 0); //There are no invalid positions, but initially the m_pLastAccessedChunk pointer will be null
mutable std::shared_ptr<Chunk> m_pLastAccessedChunk = nullptr;
mutable Chunk* m_pLastAccessedChunk = nullptr;
uint32_t m_uChunkCountLimit = 0;
// The size of the volume