From 4f17362aeb80e5339c58a5d3b0fbaeb88d9e701c Mon Sep 17 00:00:00 2001
From: "madmaxoft@gmail.com"
 <madmaxoft@gmail.com@0a769ca7-a7f5-676a-18bf-c427514a06d6>
Date: Mon, 13 Feb 2012 21:47:03 +0000
Subject: Rewritten most of the code for multithreading; still not 100%, but
 getting there. If this commit proves to be too problematic, we can always
 undo it.

git-svn-id: http://mc-server.googlecode.com/svn/trunk@251 0a769ca7-a7f5-676a-18bf-c427514a06d6
---
 source/WorldStorage.h | 94 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 source/WorldStorage.h

(limited to 'source/WorldStorage.h')

diff --git a/source/WorldStorage.h b/source/WorldStorage.h
new file mode 100644
index 000000000..52573caf0
--- /dev/null
+++ b/source/WorldStorage.h
@@ -0,0 +1,94 @@
+
+// WorldStorage.h
+
+// Interfaces to the cWorldStorage class representing the chunk loading / saving thread
+// This class decides which storage schema to use for saving; it queries all available schemas for loading
+// Also declares the base class for all storage schemas, cWSSchema
+
+
+
+
+
+#pragma once
+#ifndef WORLDSTORAGE_H_INCLUDED
+#define WORLDSTORAGE_H_INCLUDED
+
+#include "cChunk.h"
+#include "cIsThread.h"
+
+
+
+
+
+/// Interface that all the world storage schemas need to implement
+class cWSSchema ABSTRACT
+{
+public:
+	cWSSchema(cWorld * a_World) : m_World(a_World) {}
+	virtual ~cWSSchema() {}  // Force the descendants' destructors to be virtual
+	
+	virtual bool LoadChunk(const cChunkPtr & a_Chunk) = 0;
+	virtual bool SaveChunk(const cChunkPtr & a_Chunk) = 0;
+	virtual const AString GetName(void) const = 0;
+	
+protected:
+
+	cWorld * m_World;
+} ;
+
+typedef std::list<cWSSchema *> cWSSchemaList;
+
+
+
+
+
+class cWorldStorage :
+	public cIsThread
+{
+	typedef cIsThread super;
+	
+public:
+
+	cWorldStorage(void);
+	~cWorldStorage();
+	
+	void QueueLoadChunk(cChunkPtr & a_Chunk);  // Queues the chunk for loading; if not loaded, the chunk will be generated
+	void QueueSaveChunk(cChunkPtr & a_Chunk);
+	
+	void UnqueueLoad(const cChunkPtr & a_Chunk);
+	void UnqueueSave(const cChunkPtr & a_Chunk);
+	
+	bool Start(cWorld * a_World, const AString & a_StorageSchemaName);  // Hide the cIsThread's Start() method, we need to provide args
+	void WaitForFinish(void);
+	
+protected:
+
+	cWorld * m_World;
+	AString  m_StorageSchemaName;
+	
+	cCriticalSection m_CSLoadQueue;
+	cChunkPtrList    m_LoadQueue;
+	
+	cCriticalSection m_CSSaveQueue;
+	cChunkPtrList    m_SaveQueue;
+	
+	cEvent m_Event;  // Set when there's any addition to the queues
+	
+	cWSSchemaList m_Schemas;
+	cWSSchema * m_SaveSchema;
+	
+	void InitSchemas(void);
+	
+	virtual void Execute(void) override;
+	bool LoadChunk(const cChunkPtr & a_Chunk);
+} ;
+
+
+
+
+
+#endif  // WORLDSTORAGE_H_INCLUDED
+
+
+
+
-- 
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