Initial commit

Minecraft.Client/PSVita/PSVitaExtras/CustomSet.h

@@ -0,0 +1,42 @@
+#ifndef CustomSet_H
+#define CustomSet_H
+// AP - This replaces the std::unordered_set used in Level.h
+// The problem with the original system is that it calls malloc for every insert it does. Not only is that expensive in itself but it also
+// clashes with any other mallocs on other threads (specifically the large amount of mallocing being done in MobSpawner for the std::unordered_map)
+// causing huge stalls.
+// This isn't really a univeral replacement for std::unordered_set and is quite specific to Level.h
+
+#include "../../../Minecraft.World/ChunkPos.h"
+
+typedef struct SCustomSetNode
+{
+	unsigned int Hash;
+	ChunkPos key;
+	struct SCustomSetNode *Next;
+} SCustomSetNode;
+
+class CustomSet
+{
+private:
+	SCustomSetNode **m_NodePool;
+	int m_NodePoolSize;
+	int m_NodePoolIndex;
+
+	int m_HashSize;
+	SCustomSetNode **m_HashTable;
+
+public:
+	CustomSet();
+	~CustomSet();
+
+	void clear();
+	SCustomSetNode* find(const ChunkPos &Key);
+	int end();
+	ChunkPos get(int index);
+	void insert(const ChunkPos &Key);
+
+private:
+	void resize();
+};
+
+#endif // CustomSet_H