first commit

Minecraft.World/RegionFileCache.h

@@ -0,0 +1,35 @@
+#pragma once
+#include "RegionFile.h"
+#include "Reference.h"
+#include "File.h"
+
+class RegionFileCache
+{
+	friend class ConsoleSaveFileOriginal;
+private:
+	static const int MAX_CACHE_SIZE = 256;
+
+	unordered_map<File, RegionFile *, FileKeyHash, FileKeyEq> cache;
+
+	static RegionFileCache s_defaultCache;
+
+public:
+	// Made public and non-static so we can have a cache for input and output files
+	RegionFileCache() {}
+
+    RegionFile *_getRegionFile(ConsoleSaveFile *saveFile, const wstring &prefix, int chunkX, int chunkZ);		// 4J - TODO was synchronized
+    void _clear();															// 4J - TODO was synchronized
+    int _getSizeDelta(ConsoleSaveFile *saveFile, const wstring &prefix, int chunkX, int chunkZ);
+    DataInputStream *_getChunkDataInputStream(ConsoleSaveFile *saveFile, const wstring &prefix, int chunkX, int chunkZ);
+    DataOutputStream *_getChunkDataOutputStream(ConsoleSaveFile *saveFile, const wstring &prefix, int chunkX, int chunkZ);
+
+	// Keep static version for general game usage
+	static RegionFile *getRegionFile(ConsoleSaveFile *saveFile, const wstring &prefix, int chunkX, int chunkZ)						{ return s_defaultCache._getRegionFile(saveFile, prefix, chunkX, chunkZ); }
+    static void clear()																												{ s_defaultCache._clear(); }
+    static int getSizeDelta(ConsoleSaveFile *saveFile, const wstring &prefix, int chunkX, int chunkZ)								{ return s_defaultCache._getSizeDelta(saveFile, prefix, chunkX, chunkZ); }
+    static DataInputStream *getChunkDataInputStream(ConsoleSaveFile *saveFile, const wstring &prefix, int chunkX, int chunkZ)		{ return s_defaultCache._getChunkDataInputStream(saveFile, prefix, chunkX, chunkZ); }
+    static DataOutputStream *getChunkDataOutputStream(ConsoleSaveFile *saveFile, const wstring &prefix, int chunkX, int chunkZ)		{ return s_defaultCache._getChunkDataOutputStream(saveFile, prefix, chunkX, chunkZ); }
+
+private:
+	bool useSplitSaves(ESavePlatform platform);
+};