From 4d65ffffc0b6f35ac84e310fd4bc9739ea7e0c0a Mon Sep 17 00:00:00 2001
From: "madmaxoft@gmail.com"
 <madmaxoft@gmail.com@0a769ca7-a7f5-676a-18bf-c427514a06d6>
Date: Mon, 5 Mar 2012 16:41:57 +0000
Subject: ChunkSender: Chunks are now compressed and sent to clients from a
 separate threads, proper passive waiting between threads. Not much tested,
 just appears to work :)

git-svn-id: http://mc-server.googlecode.com/svn/trunk@365 0a769ca7-a7f5-676a-18bf-c427514a06d6
---
 source/ChunkSender.cpp | 133 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 133 insertions(+)
 create mode 100644 source/ChunkSender.cpp

(limited to 'source/ChunkSender.cpp')

diff --git a/source/ChunkSender.cpp b/source/ChunkSender.cpp
new file mode 100644
index 000000000..527db4543
--- /dev/null
+++ b/source/ChunkSender.cpp
@@ -0,0 +1,133 @@
+
+// ChunkSender.cpp
+
+// Interfaces to the cChunkSender class representing the thread that waits for chunks becoming ready (loaded / generated) and sends them to clients
+
+
+
+
+
+#include "Globals.h"
+#include "ChunkSender.h"
+#include "cWorld.h"
+#include "packets/cPacket_MapChunk.h"
+#include "packets/cPacket_PreChunk.h"
+#include "cBlockEntity.h"
+
+
+
+
+
+cChunkSender::cChunkSender(void) :
+	super("ChunkSender"),
+	m_World(NULL)
+{
+}
+
+
+
+
+
+cChunkSender::~cChunkSender()
+{
+	mShouldTerminate = true;
+	m_Event.Set();
+}
+
+
+
+
+
+bool cChunkSender::Start(cWorld * a_World)
+{
+	m_World = a_World;
+	return super::Start();
+}
+
+
+
+
+
+void cChunkSender::ChunkReady(int a_ChunkX, int a_ChunkY, int a_ChunkZ)
+{
+	// This is probably never gonna be called twice for the same chunk, and if it is, we don't mind, so we don't check
+	{
+		cCSLock Lock(m_CS);
+		m_ChunksReady.push_back(cChunkCoords(a_ChunkX, a_ChunkY, a_ChunkZ));
+	}
+	m_Event.Set();
+}
+
+
+
+
+
+void cChunkSender::Execute(void)
+{
+	while (!mShouldTerminate)
+	{
+		cCSLock Lock(m_CS);
+		while (m_ChunksReady.empty())
+		{
+			cCSUnlock Unlock(Lock);
+			m_Event.Wait();
+			if (mShouldTerminate)
+			{
+				return;
+			}
+		}  // while (empty)
+		
+		// Take one from the queue:
+		cChunkCoords Coords(m_ChunksReady.front());
+		m_ChunksReady.pop_front();
+		Lock.Unlock();
+		
+		ASSERT(m_World != NULL);
+		
+		// Send it to anyone waiting:
+		m_World->GetChunkData(Coords.m_ChunkX, Coords.m_ChunkY, Coords.m_ChunkZ, this);
+		cPacket_PreChunk PreChunk(Coords.m_ChunkX, Coords.m_ChunkZ, true);
+		cPacket_MapChunk MapChunk(Coords.m_ChunkX, Coords.m_ChunkY, Coords.m_ChunkZ, m_BlockData);
+		m_World->BroadcastToChunk(Coords.m_ChunkX, Coords.m_ChunkY, Coords.m_ChunkZ, PreChunk);
+		m_World->BroadcastToChunk(Coords.m_ChunkX, Coords.m_ChunkY, Coords.m_ChunkZ, MapChunk);
+		
+		// Send entity creation packets:
+		for (PacketList::iterator itr = m_Packets.begin(); itr != m_Packets.end(); ++itr)
+		{
+			m_World->BroadcastToChunk(Coords.m_ChunkX, Coords.m_ChunkY, Coords.m_ChunkZ, **itr);
+			delete *itr;
+		}  // for itr - m_Packets
+		m_Packets.clear();
+		
+	}  // while (!mShouldTerminate)
+}
+
+
+
+
+
+void cChunkSender::BlockData(const char * a_Data)
+{
+	memcpy(m_BlockData, a_Data, cChunk::c_BlockDataSize);
+}
+
+
+
+
+
+void cChunkSender::BlockEntity(cBlockEntity * a_Entity)
+{
+	m_Packets.push_back(a_Entity->GetPacket());
+}
+
+
+
+
+void cChunkSender::Entity(cEntity * a_Entity)
+{
+	// Nothing needed yet, perhaps in the future when we save entities into chunks we'd like to send them upon load, too ;)
+}
+
+
+
+
-- 
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