From 2344150b6e9dd056769f8ce565ec35243bef2538 Mon Sep 17 00:00:00 2001 From: Justin Clark-Casey (justincc) Date: Wed, 2 Feb 2011 19:39:33 +0000 Subject: Stop double counting dequeued packets for packets sent number This is already being incremented in LLUDPServer.SendPacketFinal for every packet --- OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'OpenSim/Region/ClientStack') diff --git a/OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs b/OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs index d4c3307..21bd99e 100644 --- a/OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs +++ b/OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs @@ -441,13 +441,16 @@ namespace OpenSim.Region.ClientStack.LindenUDP /// an outgoing packet from each, obeying the throttling bucket limits /// /// + /// /// Packet queues are inspected in ascending numerical order starting from 0. Therefore, queues with a lower /// ThrottleOutPacketType number will see their packet get sent first (e.g. if both Land and Wind queues have /// packets, then the packet at the front of the Land queue will be sent before the packet at the front of the /// wind queue). /// - /// This function is only called from a synchronous loop in the - /// UDPServer so we don't need to bother making this thread safe + /// This function is only called from a synchronous loop in the + /// UDPServer so we don't need to bother making this thread safe + /// + /// /// True if any packets were sent, otherwise false public bool DequeueOutgoing() { @@ -476,7 +479,6 @@ namespace OpenSim.Region.ClientStack.LindenUDP m_udpServer.SendPacketFinal(nextPacket); m_nextPackets[i] = null; packetSent = true; - this.PacketsSent++; } } else @@ -493,7 +495,6 @@ namespace OpenSim.Region.ClientStack.LindenUDP // Send the packet m_udpServer.SendPacketFinal(packet); packetSent = true; - this.PacketsSent++; } else { -- cgit v1.1 From 2413e9eb3fe63307660202f913eee1c877340372 Mon Sep 17 00:00:00 2001 From: Justin Clark-Casey (justincc) Date: Wed, 2 Feb 2011 20:00:50 +0000 Subject: Record number of resent packets in LindenUDP stack and display in stats report --- OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs | 7 +++++-- OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs | 5 ++++- 2 files changed, 9 insertions(+), 3 deletions(-) (limited to 'OpenSim/Region/ClientStack') diff --git a/OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs b/OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs index 21bd99e..65a8fe3 100644 --- a/OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs +++ b/OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs @@ -122,6 +122,8 @@ namespace OpenSim.Region.ClientStack.LindenUDP public int PacketsReceived; /// Number of packets sent to this client public int PacketsSent; + /// Number of packets resent to this client + public int PacketsResent; /// Total byte count of unacked packets sent to this client public int UnackedBytes; @@ -256,9 +258,10 @@ namespace OpenSim.Region.ClientStack.LindenUDP public string GetStats() { return string.Format( - "{0,7} {1,7} {2,9} {3,8} {4,7} {5,7} {6,7} {7,7} {8,9} {9,7} {10,7}", + "{0,7} {1,7} {2,7} {3,9} {4,7} {5,7} {6,7} {7,7} {8,7} {9,8} {10,7} {11,7}", + PacketsReceived, PacketsSent, - PacketsReceived, + PacketsResent, UnackedBytes, m_packetOutboxes[(int)ThrottleOutPacketType.Resend].Count, m_packetOutboxes[(int)ThrottleOutPacketType.Land].Count, diff --git a/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs b/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs index df8ddbb..5ff9aee 100644 --- a/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs +++ b/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs @@ -506,7 +506,6 @@ namespace OpenSim.Region.ClientStack.LindenUDP // Bump up the resend count on this packet Interlocked.Increment(ref outgoingPacket.ResendCount); - //Interlocked.Increment(ref Stats.ResentPackets); // Requeue or resend the packet if (!outgoingPacket.Client.EnqueueOutgoing(outgoingPacket, false)) @@ -582,6 +581,10 @@ namespace OpenSim.Region.ClientStack.LindenUDP udpClient.NeedAcks.Add(outgoingPacket); } } + else + { + Interlocked.Increment(ref udpClient.PacketsResent); + } #endregion Sequence Number Assignment -- cgit v1.1 From ebeef02fef1a04b5b4cfe13dad588bcce7f9ba21 Mon Sep 17 00:00:00 2001 From: Diva Canto Date: Mon, 7 Feb 2011 07:45:03 -0800 Subject: Hunting down mantis #5365 Revert "refactor: remove redundant null checks" This reverts commit 6e58996b4d9db202cd7795a37bd687362effef48. --- .../LindenUDP/UnackedPacketCollection.cs | 45 ++++++++++++++-------- 1 file changed, 30 insertions(+), 15 deletions(-) (limited to 'OpenSim/Region/ClientStack') diff --git a/OpenSim/Region/ClientStack/LindenUDP/UnackedPacketCollection.cs b/OpenSim/Region/ClientStack/LindenUDP/UnackedPacketCollection.cs index 9d40688..d762bef 100644 --- a/OpenSim/Region/ClientStack/LindenUDP/UnackedPacketCollection.cs +++ b/OpenSim/Region/ClientStack/LindenUDP/UnackedPacketCollection.cs @@ -141,31 +141,46 @@ namespace OpenSim.Region.ClientStack.LindenUDP private void ProcessQueues() { // Process all the pending adds + OutgoingPacket pendingAdd; - while (m_pendingAdds.TryDequeue(out pendingAdd)) - m_packets[pendingAdd.SequenceNumber] = pendingAdd; + if (m_pendingAdds != null) + { + while (m_pendingAdds.TryDequeue(out pendingAdd)) + { + if (pendingAdd != null && m_packets != null) + { + m_packets[pendingAdd.SequenceNumber] = pendingAdd; + } + } + } // Process all the pending removes, including updating statistics and round-trip times PendingAck pendingRemove; OutgoingPacket ackedPacket; - while (m_pendingRemoves.TryDequeue(out pendingRemove)) + if (m_pendingRemoves != null) { - if (m_packets.TryGetValue(pendingRemove.SequenceNumber, out ackedPacket)) + while (m_pendingRemoves.TryDequeue(out pendingRemove)) { - m_packets.Remove(pendingRemove.SequenceNumber); - - // Update stats - Interlocked.Add(ref ackedPacket.Client.UnackedBytes, -ackedPacket.Buffer.DataLength); - - if (!pendingRemove.FromResend) + if (m_pendingRemoves != null && m_packets != null) { - // Calculate the round-trip time for this packet and its ACK - int rtt = pendingRemove.RemoveTime - ackedPacket.TickCount; - if (rtt > 0) - ackedPacket.Client.UpdateRoundTrip(rtt); + if (m_packets.TryGetValue(pendingRemove.SequenceNumber, out ackedPacket)) + { + m_packets.Remove(pendingRemove.SequenceNumber); + + // Update stats + Interlocked.Add(ref ackedPacket.Client.UnackedBytes, -ackedPacket.Buffer.DataLength); + + if (!pendingRemove.FromResend) + { + // Calculate the round-trip time for this packet and its ACK + int rtt = pendingRemove.RemoveTime - ackedPacket.TickCount; + if (rtt > 0) + ackedPacket.Client.UpdateRoundTrip(rtt); + } + } } } } } } -} \ No newline at end of file +} -- cgit v1.1 From ac7bc78555c1dd51724790032f0711b24bc8c67d Mon Sep 17 00:00:00 2001 From: Diva Canto Date: Tue, 8 Feb 2011 12:06:14 -0800 Subject: Added emergency monitoring of UDP Outgoing packets thread. Just type "emergency-monitoring on/off" --- .../Region/ClientStack/LindenUDP/LLUDPServer.cs | 100 +++++++++++++++++++++ 1 file changed, 100 insertions(+) (limited to 'OpenSim/Region/ClientStack') diff --git a/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs b/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs index 5ff9aee..72257d2 100644 --- a/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs +++ b/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs @@ -27,6 +27,7 @@ using System; using System.Collections.Generic; +using System.Diagnostics; using System.IO; using System.Net; using System.Net.Sockets; @@ -1053,6 +1054,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP #endregion Update Timers + if (m_scene.EmergencyMonitoring) + clientPacketHandler = MonitoredClientOutgoingPacketHandler; + // Handle outgoing packets, resends, acknowledgements, and pings for each // client. m_packetSent will be set to true if a packet is sent m_scene.ForEachClient(clientPacketHandler); @@ -1068,6 +1072,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP { m_log.Error("[LLUDPSERVER]: OutgoingPacketHandler loop threw an exception: " + ex.Message, ex); } + } Watchdog.RemoveThread(); @@ -1105,6 +1110,101 @@ namespace OpenSim.Region.ClientStack.LindenUDP } } + #region Emergency Monitoring + private Stopwatch watch1 = new Stopwatch(); + private Stopwatch watch2 = new Stopwatch(); + + private float avgProcessingTicks = 0; + private float avgResendUnackedTicks = 0; + private float avgSendAcksTicks = 0; + private float avgSendPingTicks = 0; + private float avgDequeueTicks = 0; + private long nticks = 0; + private long nticksUnack = 0; + private long nticksAck = 0; + private long nticksPing = 0; + + private void MonitoredClientOutgoingPacketHandler(IClientAPI client) + { + nticks++; + watch1.Start(); + try + { + if (client is LLClientView) + { + LLUDPClient udpClient = ((LLClientView)client).UDPClient; + + if (udpClient.IsConnected) + { + if (m_resendUnacked) + { + nticksUnack++; + watch2.Start(); + + ResendUnacked(udpClient); + + watch2.Stop(); + avgResendUnackedTicks = (nticksUnack - 1)/(float)nticksUnack * avgResendUnackedTicks + (watch2.ElapsedTicks / (float)nticksUnack); + watch2.Reset(); + } + + if (m_sendAcks) + { + nticksAck++; + watch2.Start(); + + SendAcks(udpClient); + + watch2.Stop(); + avgSendAcksTicks = (nticksAck - 1) / (float)nticksAck * avgSendAcksTicks + (watch2.ElapsedTicks / (float)nticksAck); + watch2.Reset(); + } + + if (m_sendPing) + { + nticksPing++; + watch2.Start(); + + SendPing(udpClient); + + watch2.Stop(); + avgSendPingTicks = (nticksPing - 1) / (float)nticksPing * avgSendPingTicks + (watch2.ElapsedTicks / (float)nticksPing); + watch2.Reset(); + } + + watch2.Start(); + // Dequeue any outgoing packets that are within the throttle limits + if (udpClient.DequeueOutgoing()) + m_packetSent = true; + watch2.Stop(); + avgDequeueTicks = (nticks - 1) / (float)nticks * avgDequeueTicks + (watch2.ElapsedTicks / (float)nticks); + watch2.Reset(); + + } + else + m_log.WarnFormat("[LLUDPSERVER]: Client is not connected"); + } + } + catch (Exception ex) + { + m_log.Error("[LLUDPSERVER]: OutgoingPacketHandler iteration for " + client.Name + + " threw an exception: " + ex.Message, ex); + } + watch1.Stop(); + avgProcessingTicks = (nticks - 1) / (float)nticks * avgProcessingTicks + (watch1.ElapsedTicks / (float)nticks); + watch1.Reset(); + + // reuse this -- it's every 100ms + if (m_scene.EmergencyMonitoring && nticks % 100 == 0) + { + m_log.InfoFormat("[LLUDPSERVER]: avg processing ticks: {0} avg unacked: {1} avg acks: {2} avg ping: {3} avg dequeue: {4} (pack sent? {5})", + avgProcessingTicks, avgResendUnackedTicks, avgSendAcksTicks, avgSendPingTicks, avgDequeueTicks, m_packetSent); + } + + } + + #endregion + private void ProcessInPacket(object state) { IncomingPacket incomingPacket = (IncomingPacket)state; -- cgit v1.1 From 82846afe4b2a141421bff136dec9eef553522aa7 Mon Sep 17 00:00:00 2001 From: Diva Canto Date: Tue, 8 Feb 2011 12:37:37 -0800 Subject: Minor improvement to previous commit. --- OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'OpenSim/Region/ClientStack') diff --git a/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs b/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs index 72257d2..703ef6a 100644 --- a/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs +++ b/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs @@ -1056,6 +1056,8 @@ namespace OpenSim.Region.ClientStack.LindenUDP if (m_scene.EmergencyMonitoring) clientPacketHandler = MonitoredClientOutgoingPacketHandler; + else + clientPacketHandler = ClientOutgoingPacketHandler; // Handle outgoing packets, resends, acknowledgements, and pings for each // client. m_packetSent will be set to true if a packet is sent @@ -1197,8 +1199,8 @@ namespace OpenSim.Region.ClientStack.LindenUDP // reuse this -- it's every 100ms if (m_scene.EmergencyMonitoring && nticks % 100 == 0) { - m_log.InfoFormat("[LLUDPSERVER]: avg processing ticks: {0} avg unacked: {1} avg acks: {2} avg ping: {3} avg dequeue: {4} (pack sent? {5})", - avgProcessingTicks, avgResendUnackedTicks, avgSendAcksTicks, avgSendPingTicks, avgDequeueTicks, m_packetSent); + m_log.InfoFormat("[LLUDPSERVER]: avg processing ticks: {0} avg unacked: {1} avg acks: {2} avg ping: {3} avg dequeue: {4} (TickCountRes: {5})", + avgProcessingTicks, avgResendUnackedTicks, avgSendAcksTicks, avgSendPingTicks, avgDequeueTicks, TickCountResolution); } } -- cgit v1.1 From f431bd20ec18222a69fe1371b6145cf7415fdf9f Mon Sep 17 00:00:00 2001 From: Diva Canto Date: Tue, 8 Feb 2011 14:49:50 -0800 Subject: Minor addition to the previous commit --- OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) (limited to 'OpenSim/Region/ClientStack') diff --git a/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs b/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs index 703ef6a..bfbe959 100644 --- a/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs +++ b/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs @@ -1125,6 +1125,8 @@ namespace OpenSim.Region.ClientStack.LindenUDP private long nticksUnack = 0; private long nticksAck = 0; private long nticksPing = 0; + private int npacksSent = 0; + private int npackNotSent = 0; private void MonitoredClientOutgoingPacketHandler(IClientAPI client) { @@ -1177,7 +1179,13 @@ namespace OpenSim.Region.ClientStack.LindenUDP watch2.Start(); // Dequeue any outgoing packets that are within the throttle limits if (udpClient.DequeueOutgoing()) + { m_packetSent = true; + npacksSent++; + } + else + npackNotSent++; + watch2.Stop(); avgDequeueTicks = (nticks - 1) / (float)nticks * avgDequeueTicks + (watch2.ElapsedTicks / (float)nticks); watch2.Reset(); @@ -1196,11 +1204,12 @@ namespace OpenSim.Region.ClientStack.LindenUDP avgProcessingTicks = (nticks - 1) / (float)nticks * avgProcessingTicks + (watch1.ElapsedTicks / (float)nticks); watch1.Reset(); - // reuse this -- it's every 100ms + // reuse this -- it's every ~100ms if (m_scene.EmergencyMonitoring && nticks % 100 == 0) { - m_log.InfoFormat("[LLUDPSERVER]: avg processing ticks: {0} avg unacked: {1} avg acks: {2} avg ping: {3} avg dequeue: {4} (TickCountRes: {5})", - avgProcessingTicks, avgResendUnackedTicks, avgSendAcksTicks, avgSendPingTicks, avgDequeueTicks, TickCountResolution); + m_log.InfoFormat("[LLUDPSERVER]: avg processing ticks: {0} avg unacked: {1} avg acks: {2} avg ping: {3} avg dequeue: {4} (TickCountRes: {5} sent: {6} notsent: {7})", + avgProcessingTicks, avgResendUnackedTicks, avgSendAcksTicks, avgSendPingTicks, avgDequeueTicks, TickCountResolution, npacksSent, npackNotSent); + npackNotSent = npacksSent = 0; } } -- cgit v1.1 From 117462cba18fd0f9610d854760b92362b3beea7c Mon Sep 17 00:00:00 2001 From: Diva Canto Date: Tue, 8 Feb 2011 17:53:01 -0800 Subject: Avoid potential race conditions on UseCircuitCode. I artificially made the race condition happen, and got very similar results to those described in mantis #5365 -- no prims/avie sent back. --- .../Region/ClientStack/LindenUDP/LLUDPServer.cs | 51 ++++++++++++---------- 1 file changed, 28 insertions(+), 23 deletions(-) (limited to 'OpenSim/Region/ClientStack') diff --git a/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs b/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs index bfbe959..04fec95 100644 --- a/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs +++ b/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs @@ -640,10 +640,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP { object[] array = new object[] { buffer, packet }; - if (m_asyncPacketHandling) - Util.FireAndForget(HandleUseCircuitCode, array); - else - HandleUseCircuitCode(array); + Util.FireAndForget(HandleUseCircuitCode, array); return; } @@ -857,11 +854,12 @@ namespace OpenSim.Region.ClientStack.LindenUDP IPEndPoint remoteEndPoint = (IPEndPoint)buffer.RemoteEndPoint; + // Acknowledge the UseCircuitCode packet immediately, even before processing further + // This is so that the client doesn't send another one + SendAckImmediate(remoteEndPoint, packet.Header.Sequence); + // Begin the process of adding the client to the simulator AddNewClient((UseCircuitCodePacket)packet, remoteEndPoint); - - // Acknowledge the UseCircuitCode packet - SendAckImmediate(remoteEndPoint, packet.Header.Sequence); // m_log.DebugFormat( // "[LLUDPSERVER]: Handling UseCircuitCode request from {0} took {1}ms", @@ -927,25 +925,32 @@ namespace OpenSim.Region.ClientStack.LindenUDP protected virtual void AddClient(uint circuitCode, UUID agentID, UUID sessionID, IPEndPoint remoteEndPoint, AuthenticateResponse sessionInfo) { - // Create the LLUDPClient - LLUDPClient udpClient = new LLUDPClient(this, ThrottleRates, m_throttle, circuitCode, agentID, remoteEndPoint, m_defaultRTO, m_maxRTO); - IClientAPI existingClient; - - if (!m_scene.TryGetClient(agentID, out existingClient)) + // In priciple there shouldn't be more than one thread here, ever. + // But in case that happens, we need to synchronize this piece of code + // because it's too important + lock (this) { - // Create the LLClientView - LLClientView client = new LLClientView(remoteEndPoint, m_scene, this, udpClient, sessionInfo, agentID, sessionID, circuitCode); - client.OnLogout += LogoutHandler; + IClientAPI existingClient; - client.DisableFacelights = m_disableFacelights; + if (!m_scene.TryGetClient(agentID, out existingClient)) + { + // Create the LLUDPClient + LLUDPClient udpClient = new LLUDPClient(this, ThrottleRates, m_throttle, circuitCode, agentID, remoteEndPoint, m_defaultRTO, m_maxRTO); + // Create the LLClientView + LLClientView client = new LLClientView(remoteEndPoint, m_scene, this, udpClient, sessionInfo, agentID, sessionID, circuitCode); + client.OnLogout += LogoutHandler; - // Start the IClientAPI - client.Start(); - } - else - { - m_log.WarnFormat("[LLUDPSERVER]: Ignoring a repeated UseCircuitCode from {0} at {1} for circuit {2}", - udpClient.AgentID, remoteEndPoint, circuitCode); + client.DisableFacelights = m_disableFacelights; + + // Start the IClientAPI + client.Start(); + + } + else + { + m_log.WarnFormat("[LLUDPSERVER]: Ignoring a repeated UseCircuitCode from {0} at {1} for circuit {2}", + existingClient.AgentId, remoteEndPoint, circuitCode); + } } } -- cgit v1.1 From 585473aade100c3ffeef27e0c8e6b6c8c09d0109 Mon Sep 17 00:00:00 2001 From: Diva Canto Date: Tue, 8 Feb 2011 20:12:33 -0800 Subject: Brute-force debug -- mantis #5365 --- OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs | 18 +++++++++++++++--- OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs | 5 +++++ 2 files changed, 20 insertions(+), 3 deletions(-) (limited to 'OpenSim/Region/ClientStack') diff --git a/OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs b/OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs index 65a8fe3..2d58b94 100644 --- a/OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs +++ b/OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs @@ -463,12 +463,13 @@ namespace OpenSim.Region.ClientStack.LindenUDP bool packetSent = false; ThrottleOutPacketTypeFlags emptyCategories = 0; - //string queueDebugOutput = String.Empty; // Serious debug business + string queueDebugOutput = String.Empty; // Serious debug business for (int i = 0; i < THROTTLE_CATEGORY_COUNT; i++) { bucket = m_throttleCategories[i]; - //queueDebugOutput += m_packetOutboxes[i].Count + " "; // Serious debug business + if (i == 4) + queueDebugOutput += m_packetOutboxes[i].Count + " "; // Serious debug business if (m_nextPackets[i] != null) { @@ -476,13 +477,17 @@ namespace OpenSim.Region.ClientStack.LindenUDP // leaving a dequeued packet still waiting to be sent out. Try to // send it again OutgoingPacket nextPacket = m_nextPackets[i]; + if (i == 4) queueDebugOutput += "m_nextPackets[i] != null, " + nextPacket.Buffer.DataLength; if (bucket.RemoveTokens(nextPacket.Buffer.DataLength)) { + if (i == 4) queueDebugOutput += " removed tokens "; // Send the packet m_udpServer.SendPacketFinal(nextPacket); m_nextPackets[i] = null; packetSent = true; } + else + if (i == 4) queueDebugOutput += " did not remove tokens "; } else { @@ -491,6 +496,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP queue = m_packetOutboxes[i]; if (queue.Dequeue(out packet)) { + if (i == 4) queueDebugOutput += "m_nextPackets[i] == null, dq ok " + packet.Buffer.DataLength; // A packet was pulled off the queue. See if we have // enough tokens in the bucket to send it out if (bucket.RemoveTokens(packet.Buffer.DataLength)) @@ -498,11 +504,13 @@ namespace OpenSim.Region.ClientStack.LindenUDP // Send the packet m_udpServer.SendPacketFinal(packet); packetSent = true; + if (i == 4) queueDebugOutput += " removed tokens "; } else { // Save the dequeued packet for the next iteration m_nextPackets[i] = packet; + if (i == 4) queueDebugOutput += " did not remove tokens "; } // If the queue is empty after this dequeue, fire the queue @@ -513,17 +521,21 @@ namespace OpenSim.Region.ClientStack.LindenUDP } else { + if (i == 4) queueDebugOutput += "m_nextPackets[i] == null, dq nok "; // No packets in this queue. Fire the queue empty callback // if it has not been called recently emptyCategories |= CategoryToFlag(i); } } + } if (emptyCategories != 0) BeginFireQueueEmpty(emptyCategories); - //m_log.Info("[LLUDPCLIENT]: Queues: " + queueDebugOutput); // Serious debug business + if (m_udpServer.EmergencyMonitoring) + m_log.Info("[LLUDPCLIENT]: Queues: " + queueDebugOutput); // Serious debug business + return packetSent; } diff --git a/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs b/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs index 04fec95..922e2bc 100644 --- a/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs +++ b/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs @@ -1133,6 +1133,11 @@ namespace OpenSim.Region.ClientStack.LindenUDP private int npacksSent = 0; private int npackNotSent = 0; + public bool EmergencyMonitoring + { + get { return m_scene.EmergencyMonitoring; } + } + private void MonitoredClientOutgoingPacketHandler(IClientAPI client) { nticks++; -- cgit v1.1 From ba202ea9b08b1205de343c65fd209b6cca4cb6bc Mon Sep 17 00:00:00 2001 From: Diva Canto Date: Tue, 8 Feb 2011 21:09:10 -0800 Subject: Don't build strings unless we're in emergency debugging. --- OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'OpenSim/Region/ClientStack') diff --git a/OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs b/OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs index 2d58b94..20f0410 100644 --- a/OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs +++ b/OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs @@ -468,7 +468,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP for (int i = 0; i < THROTTLE_CATEGORY_COUNT; i++) { bucket = m_throttleCategories[i]; - if (i == 4) + if (m_udpServer.EmergencyMonitoring && i == 4) queueDebugOutput += m_packetOutboxes[i].Count + " "; // Serious debug business if (m_nextPackets[i] != null) @@ -477,17 +477,17 @@ namespace OpenSim.Region.ClientStack.LindenUDP // leaving a dequeued packet still waiting to be sent out. Try to // send it again OutgoingPacket nextPacket = m_nextPackets[i]; - if (i == 4) queueDebugOutput += "m_nextPackets[i] != null, " + nextPacket.Buffer.DataLength; + if (m_udpServer.EmergencyMonitoring && i == 4) queueDebugOutput += "m_nextPackets[i] != null, " + nextPacket.Buffer.DataLength; if (bucket.RemoveTokens(nextPacket.Buffer.DataLength)) { - if (i == 4) queueDebugOutput += " removed tokens "; + if (m_udpServer.EmergencyMonitoring && i == 4) queueDebugOutput += " removed tokens "; // Send the packet m_udpServer.SendPacketFinal(nextPacket); m_nextPackets[i] = null; packetSent = true; } else - if (i == 4) queueDebugOutput += " did not remove tokens "; + if (m_udpServer.EmergencyMonitoring && i == 4) queueDebugOutput += " did not remove tokens "; } else { @@ -496,7 +496,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP queue = m_packetOutboxes[i]; if (queue.Dequeue(out packet)) { - if (i == 4) queueDebugOutput += "m_nextPackets[i] == null, dq ok " + packet.Buffer.DataLength; + if (m_udpServer.EmergencyMonitoring && i == 4) queueDebugOutput += "m_nextPackets[i] == null, dq ok " + packet.Buffer.DataLength; // A packet was pulled off the queue. See if we have // enough tokens in the bucket to send it out if (bucket.RemoveTokens(packet.Buffer.DataLength)) @@ -504,13 +504,13 @@ namespace OpenSim.Region.ClientStack.LindenUDP // Send the packet m_udpServer.SendPacketFinal(packet); packetSent = true; - if (i == 4) queueDebugOutput += " removed tokens "; + if (m_udpServer.EmergencyMonitoring && i == 4) queueDebugOutput += " removed tokens "; } else { // Save the dequeued packet for the next iteration m_nextPackets[i] = packet; - if (i == 4) queueDebugOutput += " did not remove tokens "; + if (m_udpServer.EmergencyMonitoring && i == 4) queueDebugOutput += " did not remove tokens "; } // If the queue is empty after this dequeue, fire the queue @@ -521,7 +521,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP } else { - if (i == 4) queueDebugOutput += "m_nextPackets[i] == null, dq nok "; + if (m_udpServer.EmergencyMonitoring && i == 4) queueDebugOutput += "m_nextPackets[i] == null, dq nok "; // No packets in this queue. Fire the queue empty callback // if it has not been called recently emptyCategories |= CategoryToFlag(i); -- cgit v1.1 From 473fac4dc71858139bd44c1e9ce4fd03d9d1bd91 Mon Sep 17 00:00:00 2001 From: Diva Canto Date: Wed, 9 Feb 2011 08:06:20 -0800 Subject: Detect negative dripAmounts in TokenBuckets. These negatives result from overflown integer operations. Also added Total to the scene throttles in show throttles. --- OpenSim/Region/ClientStack/LindenUDP/TokenBucket.cs | 3 +++ 1 file changed, 3 insertions(+) (limited to 'OpenSim/Region/ClientStack') diff --git a/OpenSim/Region/ClientStack/LindenUDP/TokenBucket.cs b/OpenSim/Region/ClientStack/LindenUDP/TokenBucket.cs index bdbd284..dd52683 100644 --- a/OpenSim/Region/ClientStack/LindenUDP/TokenBucket.cs +++ b/OpenSim/Region/ClientStack/LindenUDP/TokenBucket.cs @@ -207,6 +207,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP int dripAmount = deltaMS * tokensPerMS; + if (dripAmount < 0) + Console.WriteLine("MAY DAY MAY DAY! Drip amount is " + dripAmount + ". This should not happen"); + content = Math.Min(content + dripAmount, maxBurst); lastDrip = now; -- cgit v1.1 From 477a869fb2cc615430d78cbad6a5a0eedf6b9bf8 Mon Sep 17 00:00:00 2001 From: Diva Canto Date: Wed, 9 Feb 2011 08:08:57 -0800 Subject: More detection of negatives. --- OpenSim/Region/ClientStack/LindenUDP/TokenBucket.cs | 3 +++ 1 file changed, 3 insertions(+) (limited to 'OpenSim/Region/ClientStack') diff --git a/OpenSim/Region/ClientStack/LindenUDP/TokenBucket.cs b/OpenSim/Region/ClientStack/LindenUDP/TokenBucket.cs index dd52683..de8b521 100644 --- a/OpenSim/Region/ClientStack/LindenUDP/TokenBucket.cs +++ b/OpenSim/Region/ClientStack/LindenUDP/TokenBucket.cs @@ -213,6 +213,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP content = Math.Min(content + dripAmount, maxBurst); lastDrip = now; + if (content < 0) + Console.WriteLine("MAY DAY MAY DAY! Content is " + content + ". This should not happen"); + return true; } } -- cgit v1.1 From 1bba9c6300db10c78f606bf0c21be17004dde704 Mon Sep 17 00:00:00 2001 From: Diva Canto Date: Wed, 9 Feb 2011 08:35:21 -0800 Subject: Revert "Don't build strings unless we're in emergency debugging." This reverts commit ba202ea9b08b1205de343c65fd209b6cca4cb6bc. --- OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'OpenSim/Region/ClientStack') diff --git a/OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs b/OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs index 20f0410..2d58b94 100644 --- a/OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs +++ b/OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs @@ -468,7 +468,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP for (int i = 0; i < THROTTLE_CATEGORY_COUNT; i++) { bucket = m_throttleCategories[i]; - if (m_udpServer.EmergencyMonitoring && i == 4) + if (i == 4) queueDebugOutput += m_packetOutboxes[i].Count + " "; // Serious debug business if (m_nextPackets[i] != null) @@ -477,17 +477,17 @@ namespace OpenSim.Region.ClientStack.LindenUDP // leaving a dequeued packet still waiting to be sent out. Try to // send it again OutgoingPacket nextPacket = m_nextPackets[i]; - if (m_udpServer.EmergencyMonitoring && i == 4) queueDebugOutput += "m_nextPackets[i] != null, " + nextPacket.Buffer.DataLength; + if (i == 4) queueDebugOutput += "m_nextPackets[i] != null, " + nextPacket.Buffer.DataLength; if (bucket.RemoveTokens(nextPacket.Buffer.DataLength)) { - if (m_udpServer.EmergencyMonitoring && i == 4) queueDebugOutput += " removed tokens "; + if (i == 4) queueDebugOutput += " removed tokens "; // Send the packet m_udpServer.SendPacketFinal(nextPacket); m_nextPackets[i] = null; packetSent = true; } else - if (m_udpServer.EmergencyMonitoring && i == 4) queueDebugOutput += " did not remove tokens "; + if (i == 4) queueDebugOutput += " did not remove tokens "; } else { @@ -496,7 +496,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP queue = m_packetOutboxes[i]; if (queue.Dequeue(out packet)) { - if (m_udpServer.EmergencyMonitoring && i == 4) queueDebugOutput += "m_nextPackets[i] == null, dq ok " + packet.Buffer.DataLength; + if (i == 4) queueDebugOutput += "m_nextPackets[i] == null, dq ok " + packet.Buffer.DataLength; // A packet was pulled off the queue. See if we have // enough tokens in the bucket to send it out if (bucket.RemoveTokens(packet.Buffer.DataLength)) @@ -504,13 +504,13 @@ namespace OpenSim.Region.ClientStack.LindenUDP // Send the packet m_udpServer.SendPacketFinal(packet); packetSent = true; - if (m_udpServer.EmergencyMonitoring && i == 4) queueDebugOutput += " removed tokens "; + if (i == 4) queueDebugOutput += " removed tokens "; } else { // Save the dequeued packet for the next iteration m_nextPackets[i] = packet; - if (m_udpServer.EmergencyMonitoring && i == 4) queueDebugOutput += " did not remove tokens "; + if (i == 4) queueDebugOutput += " did not remove tokens "; } // If the queue is empty after this dequeue, fire the queue @@ -521,7 +521,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP } else { - if (m_udpServer.EmergencyMonitoring && i == 4) queueDebugOutput += "m_nextPackets[i] == null, dq nok "; + if (i == 4) queueDebugOutput += "m_nextPackets[i] == null, dq nok "; // No packets in this queue. Fire the queue empty callback // if it has not been called recently emptyCategories |= CategoryToFlag(i); -- cgit v1.1 From 830fee145d8e8fabc32365ee6f04732d4c85b1e3 Mon Sep 17 00:00:00 2001 From: Diva Canto Date: Wed, 9 Feb 2011 08:35:36 -0800 Subject: Revert "Brute-force debug -- mantis #5365" This reverts commit 585473aade100c3ffeef27e0c8e6b6c8c09d0109. --- OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs | 18 +++--------------- OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs | 5 ----- 2 files changed, 3 insertions(+), 20 deletions(-) (limited to 'OpenSim/Region/ClientStack') diff --git a/OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs b/OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs index 2d58b94..65a8fe3 100644 --- a/OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs +++ b/OpenSim/Region/ClientStack/LindenUDP/LLUDPClient.cs @@ -463,13 +463,12 @@ namespace OpenSim.Region.ClientStack.LindenUDP bool packetSent = false; ThrottleOutPacketTypeFlags emptyCategories = 0; - string queueDebugOutput = String.Empty; // Serious debug business + //string queueDebugOutput = String.Empty; // Serious debug business for (int i = 0; i < THROTTLE_CATEGORY_COUNT; i++) { bucket = m_throttleCategories[i]; - if (i == 4) - queueDebugOutput += m_packetOutboxes[i].Count + " "; // Serious debug business + //queueDebugOutput += m_packetOutboxes[i].Count + " "; // Serious debug business if (m_nextPackets[i] != null) { @@ -477,17 +476,13 @@ namespace OpenSim.Region.ClientStack.LindenUDP // leaving a dequeued packet still waiting to be sent out. Try to // send it again OutgoingPacket nextPacket = m_nextPackets[i]; - if (i == 4) queueDebugOutput += "m_nextPackets[i] != null, " + nextPacket.Buffer.DataLength; if (bucket.RemoveTokens(nextPacket.Buffer.DataLength)) { - if (i == 4) queueDebugOutput += " removed tokens "; // Send the packet m_udpServer.SendPacketFinal(nextPacket); m_nextPackets[i] = null; packetSent = true; } - else - if (i == 4) queueDebugOutput += " did not remove tokens "; } else { @@ -496,7 +491,6 @@ namespace OpenSim.Region.ClientStack.LindenUDP queue = m_packetOutboxes[i]; if (queue.Dequeue(out packet)) { - if (i == 4) queueDebugOutput += "m_nextPackets[i] == null, dq ok " + packet.Buffer.DataLength; // A packet was pulled off the queue. See if we have // enough tokens in the bucket to send it out if (bucket.RemoveTokens(packet.Buffer.DataLength)) @@ -504,13 +498,11 @@ namespace OpenSim.Region.ClientStack.LindenUDP // Send the packet m_udpServer.SendPacketFinal(packet); packetSent = true; - if (i == 4) queueDebugOutput += " removed tokens "; } else { // Save the dequeued packet for the next iteration m_nextPackets[i] = packet; - if (i == 4) queueDebugOutput += " did not remove tokens "; } // If the queue is empty after this dequeue, fire the queue @@ -521,21 +513,17 @@ namespace OpenSim.Region.ClientStack.LindenUDP } else { - if (i == 4) queueDebugOutput += "m_nextPackets[i] == null, dq nok "; // No packets in this queue. Fire the queue empty callback // if it has not been called recently emptyCategories |= CategoryToFlag(i); } } - } if (emptyCategories != 0) BeginFireQueueEmpty(emptyCategories); - if (m_udpServer.EmergencyMonitoring) - m_log.Info("[LLUDPCLIENT]: Queues: " + queueDebugOutput); // Serious debug business - + //m_log.Info("[LLUDPCLIENT]: Queues: " + queueDebugOutput); // Serious debug business return packetSent; } diff --git a/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs b/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs index 922e2bc..04fec95 100644 --- a/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs +++ b/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs @@ -1133,11 +1133,6 @@ namespace OpenSim.Region.ClientStack.LindenUDP private int npacksSent = 0; private int npackNotSent = 0; - public bool EmergencyMonitoring - { - get { return m_scene.EmergencyMonitoring; } - } - private void MonitoredClientOutgoingPacketHandler(IClientAPI client) { nticks++; -- cgit v1.1 From 1cd951e5aedad4be809fc2674e57e34d0972b67c Mon Sep 17 00:00:00 2001 From: Diva Canto Date: Wed, 9 Feb 2011 09:39:53 -0800 Subject: Fix the negative number problem in TokenBucket. mantis #5365 --- OpenSim/Region/ClientStack/LindenUDP/TokenBucket.cs | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) (limited to 'OpenSim/Region/ClientStack') diff --git a/OpenSim/Region/ClientStack/LindenUDP/TokenBucket.cs b/OpenSim/Region/ClientStack/LindenUDP/TokenBucket.cs index de8b521..0a8331f 100644 --- a/OpenSim/Region/ClientStack/LindenUDP/TokenBucket.cs +++ b/OpenSim/Region/ClientStack/LindenUDP/TokenBucket.cs @@ -207,14 +207,13 @@ namespace OpenSim.Region.ClientStack.LindenUDP int dripAmount = deltaMS * tokensPerMS; - if (dripAmount < 0) - Console.WriteLine("MAY DAY MAY DAY! Drip amount is " + dripAmount + ". This should not happen"); - content = Math.Min(content + dripAmount, maxBurst); lastDrip = now; - if (content < 0) - Console.WriteLine("MAY DAY MAY DAY! Content is " + content + ". This should not happen"); + if (dripAmount < 0 || content < 0) + // sim has been idle for too long, integer has overflown + // previous calculation is meaningless, let's put it at correct max + content = maxBurst; return true; } -- cgit v1.1 From f33e51e2ffd475ccdbc69429b4b4d707e88cc050 Mon Sep 17 00:00:00 2001 From: Diva Canto Date: Wed, 9 Feb 2011 09:50:26 -0800 Subject: Comment instrumentation out. Not needed anymore. Left in comments, in case it is needed again. Mantis #5365 --- OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'OpenSim/Region/ClientStack') diff --git a/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs b/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs index 04fec95..207d213 100644 --- a/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs +++ b/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs @@ -1059,10 +1059,11 @@ namespace OpenSim.Region.ClientStack.LindenUDP #endregion Update Timers - if (m_scene.EmergencyMonitoring) - clientPacketHandler = MonitoredClientOutgoingPacketHandler; - else - clientPacketHandler = ClientOutgoingPacketHandler; + // Use this for emergency monitoring -- bug hunting + //if (m_scene.EmergencyMonitoring) + // clientPacketHandler = MonitoredClientOutgoingPacketHandler; + //else + // clientPacketHandler = ClientOutgoingPacketHandler; // Handle outgoing packets, resends, acknowledgements, and pings for each // client. m_packetSent will be set to true if a packet is sent @@ -1118,6 +1119,8 @@ namespace OpenSim.Region.ClientStack.LindenUDP } #region Emergency Monitoring + // Alternative packet handler fuull of instrumentation + // Handy for hunting bugs private Stopwatch watch1 = new Stopwatch(); private Stopwatch watch2 = new Stopwatch(); -- cgit v1.1 From 21715396fa0d87bd4936bd37151487346794806d Mon Sep 17 00:00:00 2001 From: Diva Canto Date: Wed, 9 Feb 2011 17:45:19 -0800 Subject: Put the Ack of UseCircuitCode back to where it used to be. Some ppl are reporting login issues. --- OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) (limited to 'OpenSim/Region/ClientStack') diff --git a/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs b/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs index 207d213..584c577 100644 --- a/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs +++ b/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs @@ -854,14 +854,13 @@ namespace OpenSim.Region.ClientStack.LindenUDP IPEndPoint remoteEndPoint = (IPEndPoint)buffer.RemoteEndPoint; - // Acknowledge the UseCircuitCode packet immediately, even before processing further - // This is so that the client doesn't send another one - SendAckImmediate(remoteEndPoint, packet.Header.Sequence); - // Begin the process of adding the client to the simulator AddNewClient((UseCircuitCodePacket)packet, remoteEndPoint); - -// m_log.DebugFormat( + + // Send ack + SendAckImmediate(remoteEndPoint, packet.Header.Sequence); + + // m_log.DebugFormat( // "[LLUDPSERVER]: Handling UseCircuitCode request from {0} took {1}ms", // buffer.RemoteEndPoint, (DateTime.Now - startTime).Milliseconds); } -- cgit v1.1 From 89bb5c0941625542ce3fe364cf91a2e2fa60cbcf Mon Sep 17 00:00:00 2001 From: Diva Canto Date: Thu, 10 Feb 2011 06:09:04 -0800 Subject: Revert "Hunting down mantis #5365" This reverts commit ebeef02fef1a04b5b4cfe13dad588bcce7f9ba21. --- .../LindenUDP/UnackedPacketCollection.cs | 45 ++++++++-------------- 1 file changed, 15 insertions(+), 30 deletions(-) (limited to 'OpenSim/Region/ClientStack') diff --git a/OpenSim/Region/ClientStack/LindenUDP/UnackedPacketCollection.cs b/OpenSim/Region/ClientStack/LindenUDP/UnackedPacketCollection.cs index d762bef..9d40688 100644 --- a/OpenSim/Region/ClientStack/LindenUDP/UnackedPacketCollection.cs +++ b/OpenSim/Region/ClientStack/LindenUDP/UnackedPacketCollection.cs @@ -141,46 +141,31 @@ namespace OpenSim.Region.ClientStack.LindenUDP private void ProcessQueues() { // Process all the pending adds - OutgoingPacket pendingAdd; - if (m_pendingAdds != null) - { - while (m_pendingAdds.TryDequeue(out pendingAdd)) - { - if (pendingAdd != null && m_packets != null) - { - m_packets[pendingAdd.SequenceNumber] = pendingAdd; - } - } - } + while (m_pendingAdds.TryDequeue(out pendingAdd)) + m_packets[pendingAdd.SequenceNumber] = pendingAdd; // Process all the pending removes, including updating statistics and round-trip times PendingAck pendingRemove; OutgoingPacket ackedPacket; - if (m_pendingRemoves != null) + while (m_pendingRemoves.TryDequeue(out pendingRemove)) { - while (m_pendingRemoves.TryDequeue(out pendingRemove)) + if (m_packets.TryGetValue(pendingRemove.SequenceNumber, out ackedPacket)) { - if (m_pendingRemoves != null && m_packets != null) + m_packets.Remove(pendingRemove.SequenceNumber); + + // Update stats + Interlocked.Add(ref ackedPacket.Client.UnackedBytes, -ackedPacket.Buffer.DataLength); + + if (!pendingRemove.FromResend) { - if (m_packets.TryGetValue(pendingRemove.SequenceNumber, out ackedPacket)) - { - m_packets.Remove(pendingRemove.SequenceNumber); - - // Update stats - Interlocked.Add(ref ackedPacket.Client.UnackedBytes, -ackedPacket.Buffer.DataLength); - - if (!pendingRemove.FromResend) - { - // Calculate the round-trip time for this packet and its ACK - int rtt = pendingRemove.RemoveTime - ackedPacket.TickCount; - if (rtt > 0) - ackedPacket.Client.UpdateRoundTrip(rtt); - } - } + // Calculate the round-trip time for this packet and its ACK + int rtt = pendingRemove.RemoveTime - ackedPacket.TickCount; + if (rtt > 0) + ackedPacket.Client.UpdateRoundTrip(rtt); } } } } } -} +} \ No newline at end of file -- cgit v1.1 From 45382e6f828395cbbcc1324d366c4f3e0eff7ad7 Mon Sep 17 00:00:00 2001 From: Diva Canto Date: Thu, 10 Feb 2011 06:26:26 -0800 Subject: Reinstated a couple of null checks related to the previous revert. --- .../LindenUDP/UnackedPacketCollection.cs | 26 +++++++++++++--------- 1 file changed, 15 insertions(+), 11 deletions(-) (limited to 'OpenSim/Region/ClientStack') diff --git a/OpenSim/Region/ClientStack/LindenUDP/UnackedPacketCollection.cs b/OpenSim/Region/ClientStack/LindenUDP/UnackedPacketCollection.cs index 9d40688..d195110 100644 --- a/OpenSim/Region/ClientStack/LindenUDP/UnackedPacketCollection.cs +++ b/OpenSim/Region/ClientStack/LindenUDP/UnackedPacketCollection.cs @@ -143,7 +143,8 @@ namespace OpenSim.Region.ClientStack.LindenUDP // Process all the pending adds OutgoingPacket pendingAdd; while (m_pendingAdds.TryDequeue(out pendingAdd)) - m_packets[pendingAdd.SequenceNumber] = pendingAdd; + if (pendingAdd != null) + m_packets[pendingAdd.SequenceNumber] = pendingAdd; // Process all the pending removes, including updating statistics and round-trip times PendingAck pendingRemove; @@ -152,17 +153,20 @@ namespace OpenSim.Region.ClientStack.LindenUDP { if (m_packets.TryGetValue(pendingRemove.SequenceNumber, out ackedPacket)) { - m_packets.Remove(pendingRemove.SequenceNumber); - - // Update stats - Interlocked.Add(ref ackedPacket.Client.UnackedBytes, -ackedPacket.Buffer.DataLength); - - if (!pendingRemove.FromResend) + if (ackedPacket != null) { - // Calculate the round-trip time for this packet and its ACK - int rtt = pendingRemove.RemoveTime - ackedPacket.TickCount; - if (rtt > 0) - ackedPacket.Client.UpdateRoundTrip(rtt); + m_packets.Remove(pendingRemove.SequenceNumber); + + // Update stats + Interlocked.Add(ref ackedPacket.Client.UnackedBytes, -ackedPacket.Buffer.DataLength); + + if (!pendingRemove.FromResend) + { + // Calculate the round-trip time for this packet and its ACK + int rtt = pendingRemove.RemoveTime - ackedPacket.TickCount; + if (rtt > 0) + ackedPacket.Client.UpdateRoundTrip(rtt); + } } } } -- cgit v1.1