Thread-safe chunk generation, storage and generator are queried for progress while initializing server

Note that this commit breaks foliage generation - there are no trees in the chunks generated!

git-svn-id: http://mc-server.googlecode.com/svn/trunk@292 0a769ca7-a7f5-676a-18bf-c427514a06d6

source/cChunkGenerator.h

@@ -43,6 +43,10 @@ public:
 	void Stop(void);
 
 	void GenerateChunk(int a_ChunkX, int a_ChunkY, int a_ChunkZ);  // Queues the chunk for generation; removes duplicate requests
+	
+	void WaitForQueueEmpty(void);
+	
+	int GetQueueLength(void);
 
 private:
 
@@ -52,6 +56,7 @@ private:
 	cCriticalSection m_CS;
 	cChunkCoordsList m_Queue;
 	cEvent           m_Event;  // Set when an item is added to the queue or the thread should terminate
+	cEvent           m_evtRemoved;  // Set when an item is removed from the queue
 
 	// cIsThread override:
 	virtual void Execute(void) override;