From 516ab5d8c616230e049e2ebf5974cef97dbda7c9 Mon Sep 17 00:00:00 2001
From: "Justin Clark-Casey (justincc)" <jjustincc@googlemail.com>
Date: Wed, 25 Sep 2013 00:02:17 +0100
Subject: [PATCH] Instead of swallowing any socket begin/end receive
 exceptions, log them for debugging purposes.

This may reveal why on some teleports with current code, the UseCircuitCode message gets through but CompleteMovement disappears into the ether.
---
 .../ClientStack/Linden/UDP/OpenSimUDPBase.cs  | 39 +++++++++++++++----
 1 file changed, 32 insertions(+), 7 deletions(-)

diff --git a/OpenSim/Region/ClientStack/Linden/UDP/OpenSimUDPBase.cs b/OpenSim/Region/ClientStack/Linden/UDP/OpenSimUDPBase.cs
index d0ed7e81e7..88494be337 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/OpenSimUDPBase.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/OpenSimUDPBase.cs
@@ -295,7 +295,16 @@ namespace OpenMetaverse
                         m_log.Warn("[UDPBASE]: Salvaged the UDP listener on port " + m_udpPort);
                     }
                 }
-                catch (ObjectDisposedException) { }
+                catch (ObjectDisposedException e) 
+                { 
+                    m_log.Error(
+                        string.Format("[UDPBASE]: Error processing UDP begin receive {0}.  Exception  ", UdpReceives), e);
+                }
+                catch (Exception e)
+                {
+                    m_log.Error(
+                        string.Format("[UDPBASE]: Error processing UDP begin receive {0}.  Exception  ", UdpReceives), e);
+                }
             }
         }
 
@@ -312,12 +321,12 @@ namespace OpenMetaverse
                 if (m_asyncPacketHandling)
                     AsyncBeginReceive();
 
-                // get the buffer that was created in AsyncBeginReceive
-                // this is the received data
-                UDPPacketBuffer buffer = (UDPPacketBuffer)iar.AsyncState;
-
                 try
                 {
+                    // get the buffer that was created in AsyncBeginReceive
+                    // this is the received data
+                    UDPPacketBuffer buffer = (UDPPacketBuffer)iar.AsyncState;
+
                     int startTick = Util.EnvironmentTickCount();
 
                     // get the length of data actually read from the socket, store it with the
@@ -345,8 +354,24 @@ namespace OpenMetaverse
                         m_currentReceiveTimeSamples++;
                     }
                 }
-                catch (SocketException) { }
-                catch (ObjectDisposedException) { }
+                catch (SocketException se) 
+                { 
+                    m_log.Error(
+                        string.Format(
+                            "[UDPBASE]: Error processing UDP end receive {0}, socket error code {1}.  Exception  ", 
+                            UdpReceives, se.ErrorCode), 
+                        se);
+                }
+                catch (ObjectDisposedException e) 
+                { 
+                    m_log.Error(
+                        string.Format("[UDPBASE]: Error processing UDP end receive {0}.  Exception  ", UdpReceives), e);
+                }
+                catch (Exception e)
+                {
+                    m_log.Error(
+                        string.Format("[UDPBASE]: Error processing UDP end receive {0}.  Exception  ", UdpReceives), e);
+                }
                 finally
                 {
 //                    if (UsePools)