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* Instead of creating a new IPEndPoint on every udp packet receive, reuse the existing one

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* This requires copying details into a new endpoint when it needs to be stored in client/circuit code hashes
This commit is contained in:
Justin Clarke Casey
2008-10-17 17:57:18 +00:00
parent e4b8912296
commit 7891f821e2
2 changed files with 41 additions and 23 deletions
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60
OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs
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@@ -60,10 +60,10 @@ namespace OpenSim.Region.ClientStack.LindenUDP
/// <value>
/// The endpoint of a sender of a particular packet. The port is changed by the various socket receive methods
/// </value>
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
/// <param name="result"></param>
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);
}