OpenSim​/Hack​/QueuePacket

オブジェクトのリスト更新でクラッシュ

• Error Log

  19:03:35 - [CLIENT]: Client thread for Fumi Hax 751c1531-03b5-48a9-8f2d-51a0527be7ca crashed.  Logging them out.
  19:03:35 - System.NullReferenceException: Object reference not set to an instance of an object
   at OpenMetaverse.Packets.ParcelObjectOwnersReplyPacket.get_Length () [0x00000] 
   at OpenSim.Region.ClientStack.LindenUDP.LLPacketHandler.QueuePacket (OpenMetaverse.Packets.Packet packet, ThrottleOutPacketType throttlePacketType, System.Object id) [0x00000] 
   at OpenSim.Region.ClientStack.LindenUDP.LLPacketHandler.OutPacket (OpenMetaverse.Packets.Packet packet, ThrottleOutPacketType throttlePacketType, System.Object id) [0x00000] 
   at OpenSim.Region.ClientStack.LindenUDP.LLPacketHandler.OutPacket (OpenMetaverse.Packets.Packet packet, ThrottleOutPacketType throttlePacketType) [0x00000] 
   at OpenSim.Region.ClientStack.LindenUDP.LLClientView.OutPacket (OpenMetaverse.Packets.Packet NewPack, ThrottleOutPacketType throttlePacketType) [0x00000] 
   at OpenSim.Region.ClientStack.LindenUDP.LLClientView.SendLandObjectOwners (OpenSim.Framework.LandData land, System.Collections.Generic.List`1 groups, System.Collections.Generic.Dictionary`2 ownersAndCount) [0x00000] 
   at OpenSim.Region.CoreModules.World.Land.LandObject.sendLandObjectOwners (IClientAPI remote_client) [0x00000] 
   at OpenSim.Region.CoreModules.World.Land.LandManagementModule.handleParcelObjectOwnersRequest (Int32 local_id, IClientAPI remote_client) [0x00000] 
   at OpenSim.Region.ClientStack.LindenUDP.LLClientView.ProcessInPacket (OpenMetaverse.Packets.Packet Pack) [0x00000] 
   at OpenSim.Region.ClientStack.LindenUDP.LLPacketHandler.ProcessInPacket (OpenSim.Region.ClientStack.LindenUDP.LLQueItem item) [0x00000] 
   at OpenSim.Region.ClientStack.LindenUDP.LLClientView.ClientLoop () [0x00000] 
   at OpenSim.Region.ClientStack.LindenUDP.LLClientView.RunUserSession () [0x00000]

• OpenSim/Region/ClientStack/LindenUDP/LLP​acketHandler.cs
• QueuePacket() の item.Length = packet.Length; で例外発生
• ParcelObjectOwnersReplyPacket には get_Length() が実装されていないと言うこと？
• 原因不明だが，とりあえず，例外を catch して回避

  private void QueuePacket(
          Packet packet, ThrottleOutPacketType throttlePacketType,
          Object id)
  {   
      LLQueItem item = new LLQueItem();
      item.Packet = packet;
      item.Incoming = false;
      item.throttleType = throttlePacketType;
      item.TickCount = Environment.TickCount;
      item.Identifier = id;
      item.Resends = 0;
      try {
          item.Length = packet.Length;
      }
      catch (Exception e) {
          item.Length = 0;
      }
      item.Sequence = packet.Header.Sequence;
  
      m_PacketQueue.Enqueue(item);
      m_PacketsSent++;
  }