From 7891f821e213639a0f15f2978ee68188f93a12f6 Mon Sep 17 00:00:00 2001
From: Justin Clarke Casey
Date: Fri, 17 Oct 2008 17:57:18 +0000
Subject: * Instead of creating a new IPEndPoint on every udp packet receive,
reuse the existing one * This requires copying details into a new endpoint
when it needs to be stored in client/circuit code hashes
---
OpenSim/Framework/ProxyCodec.cs | 4 +-
.../Region/ClientStack/LindenUDP/LLUDPServer.cs | 60 ++++++++++++++--------
2 files changed, 41 insertions(+), 23 deletions(-)
(limited to 'OpenSim')
diff --git a/OpenSim/Framework/ProxyCodec.cs b/OpenSim/Framework/ProxyCodec.cs
index 9121bed..e1aeeda 100644
--- a/OpenSim/Framework/ProxyCodec.cs
+++ b/OpenSim/Framework/ProxyCodec.cs
@@ -58,7 +58,7 @@ namespace OpenSim.Framework
numBytes = x;
}
- public static EndPoint DecodeProxyMessage(byte[] bytes, ref int numBytes)
+ public static IPEndPoint DecodeProxyMessage(byte[] bytes, ref int numBytes)
{
// IPv4 Only
byte[] addr = new byte[4];
@@ -71,7 +71,7 @@ namespace OpenSim.Framework
ushort port = (ushort) (bytes[--numBytes] * 256);
port += (ushort) bytes[--numBytes];
- return (EndPoint) new IPEndPoint(new IPAddress(addr), (int) port);
+ return new IPEndPoint(new IPAddress(addr), (int) port);
}
}
}
diff --git a/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs b/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs
index 20452e0..2a907cc 100644
--- a/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs
+++ b/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs
@@ -60,10 +60,10 @@ namespace OpenSim.Region.ClientStack.LindenUDP
///
/// The endpoint of a sender of a particular packet. The port is changed by the various socket receive methods
///
- protected EndPoint epSender;
-
- protected EndPoint epProxy;
+ protected EndPoint reusedEpSender = new IPEndPoint(IPAddress.Any, 0);
+ protected EndPoint reusedEpProxy;
protected int proxyPortOffset;
+
protected AsyncCallback ReceivedData;
protected LLPacketServer m_packetServer;
protected Location m_location;
@@ -175,7 +175,6 @@ namespace OpenSim.Region.ClientStack.LindenUDP
///
protected virtual void OnReceivedData(IAsyncResult result)
{
- epSender = new IPEndPoint(listenIP, 0);
Packet packet = null;
int numBytes = 1;
@@ -184,7 +183,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
try
{
- numBytes = m_socket.EndReceiveFrom(result, ref epSender);
+ numBytes = m_socket.EndReceiveFrom(result, ref reusedEpSender);
ok = true;
}
catch (SocketException e)
@@ -220,10 +219,10 @@ namespace OpenSim.Region.ClientStack.LindenUDP
for (z = numBytes ; z < RecvBuffer.Length ; z++)
RecvBuffer[z] = 0;
- epProxy = epSender;
+ reusedEpProxy = reusedEpSender;
if (proxyPortOffset != 0)
{
- epSender = ProxyCodec.DecodeProxyMessage(RecvBuffer, ref numBytes);
+ reusedEpSender = ProxyCodec.DecodeProxyMessage(RecvBuffer, ref numBytes);
}
int packetEnd = numBytes - 1;
@@ -267,7 +266,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
bool ret;
lock (clientCircuits)
{
- ret = clientCircuits.TryGetValue(epSender, out circuit);
+ ret = clientCircuits.TryGetValue(reusedEpSender, out circuit);
}
if (ret)
@@ -303,7 +302,8 @@ namespace OpenSim.Region.ClientStack.LindenUDP
{
try
{
- m_socket.BeginReceiveFrom(RecvBuffer, 0, RecvBuffer.Length, SocketFlags.None, ref epSender, ReceivedData, null);
+ m_socket.BeginReceiveFrom(
+ RecvBuffer, 0, RecvBuffer.Length, SocketFlags.None, ref reusedEpSender, ReceivedData, null);
}
catch (SocketException e)
{
@@ -316,7 +316,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
{
try
{
- CloseEndPoint(epSender);
+ CloseEndPoint(reusedEpSender);
}
catch (Exception a)
{
@@ -324,10 +324,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP
}
try
- {
-
- m_socket.BeginReceiveFrom(RecvBuffer, 0, RecvBuffer.Length, SocketFlags.None, ref epSender,
- ReceivedData, null);
+ {
+ m_socket.BeginReceiveFrom(
+ RecvBuffer, 0, RecvBuffer.Length, SocketFlags.None, ref reusedEpSender, ReceivedData, null);
// Ter: For some stupid reason ConnectionReset basically kills our async event structure..
// so therefore.. we've got to tell the server to BeginReceiveFrom again.
@@ -363,29 +362,48 @@ namespace OpenSim.Region.ClientStack.LindenUDP
//Slave regions don't accept new clients
if (m_localScene.Region_Status != RegionStatus.SlaveScene)
{
- m_log.DebugFormat("[CLIENT]: Adding new circuit for agent {0}, circuit code {1}", useCircuit.CircuitCode.ID, useCircuit.CircuitCode.Code);
+ m_log.DebugFormat(
+ "[CLIENT]: Adding new circuit for agent {0}, circuit code {1}",
+ useCircuit.CircuitCode.ID, useCircuit.CircuitCode.Code);
+
+ // Copy the current reusedEpSender and reusedEpProxy to store in the maps and hashes,
+ // since the reused ones will change on the next packet receipt.
+ IPEndPoint reusedIpEpSender = (IPEndPoint)reusedEpSender;
+ EndPoint epSender = new IPEndPoint(reusedIpEpSender.Address, reusedIpEpSender.Port);
+
+ IPEndPoint reusedIpEpPorxy = (IPEndPoint)reusedEpProxy;
+ EndPoint epProxy = new IPEndPoint(reusedIpEpPorxy.Address, reusedIpEpPorxy.Port);
lock (clientCircuits)
{
if (!clientCircuits.ContainsKey(epSender))
+ {
clientCircuits.Add(epSender, useCircuit.CircuitCode.Code);
+ }
else
- m_log.Error("[CLIENT]: clientCircuits already contains entry for user " + useCircuit.CircuitCode.Code + ". NOT adding.");
+ {
+ m_log.Error(
+ "[CLIENT]: clientCircuits already contains entry for user "
+ + useCircuit.CircuitCode.Code + ". NOT adding.");
+ }
}
// This doesn't need locking as it's synchronized data
if (!clientCircuits_reverse.ContainsKey(useCircuit.CircuitCode.Code))
clientCircuits_reverse.Add(useCircuit.CircuitCode.Code, epSender);
else
- m_log.Error("[CLIENT]: clientCurcuits_reverse already contains entry for user " + useCircuit.CircuitCode.Code + ". NOT adding.");
-
+ m_log.Error(
+ "[CLIENT]: clientCurcuits_reverse already contains entry for user "
+ + useCircuit.CircuitCode.Code + ". NOT adding.");
lock (proxyCircuits)
{
if (!proxyCircuits.ContainsKey(useCircuit.CircuitCode.Code))
proxyCircuits.Add(useCircuit.CircuitCode.Code, epProxy);
else
- m_log.Error("[CLIENT]: proxyCircuits already contains entry for user " + useCircuit.CircuitCode.Code + ". NOT adding.");
+ m_log.Error(
+ "[CLIENT]: proxyCircuits already contains entry for user "
+ + useCircuit.CircuitCode.Code + ". NOT adding.");
}
if (!PacketServer.AddNewClient(epSender, useCircuit, m_assetCache, m_circuitManager, epProxy))
@@ -416,9 +434,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP
m_log.Info("[UDPSERVER]: UDP socket bound, getting ready to listen");
- epSender = new IPEndPoint(listenIP, 0);
ReceivedData = OnReceivedData;
- m_socket.BeginReceiveFrom(RecvBuffer, 0, RecvBuffer.Length, SocketFlags.None, ref epSender, ReceivedData, null);
+ m_socket.BeginReceiveFrom(
+ RecvBuffer, 0, RecvBuffer.Length, SocketFlags.None, ref reusedEpSender, ReceivedData, null);
m_log.Info("[UDPSERVER]: Listening on port " + newPort);
}
--
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