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Reuse the same AgentUpdateArgs object for each AgentUpdate UDP packet (of which there are 10 a second) rather than constructing a new one every time. 

We can do this because AgentUpdate packets are handled synchronously.
0.7.4-extended
Justin Clark-Casey (justincc) 2012-10-17 23:54:05 +01:00
parent 73c2db9e8f
commit 8726748e22
1 changed files with 68 additions and 41 deletions
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109
OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
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@ -91,8 +91,23 @@ namespace OpenSim.Region.ClientStack.LindenUDP
public event ObjectDeselect OnObjectDetach;
public event ObjectDrop OnObjectDrop;
public event Action<IClientAPI, bool> OnCompleteMovementToRegion;
/// <summary>
/// Called when an AgentUpdate message is received and before OnAgentUpdate.
/// </summary>
/// <remarks>
/// Listeners must not retain a reference to AgentUpdateArgs since this object is reused for subsequent AgentUpdates.
/// </remarks>
public event UpdateAgent OnPreAgentUpdate;
/// <summary>
/// Called when an AgentUpdate message is received and after OnPreAgentUpdate.
/// </summary>
/// <remarks>
/// Listeners must not retain a reference to AgentUpdateArgs since this object is reused for subsequent AgentUpdates.
/// </remarks>
public event UpdateAgent OnAgentUpdate;
public event AgentRequestSit OnAgentRequestSit;
public event AgentSit OnAgentSit;
public event AvatarPickerRequest OnAvatarPickerRequest;
@ -346,7 +361,17 @@ namespace OpenSim.Region.ClientStack.LindenUDP
private int m_moneyBalance;
private int m_animationSequenceNumber = 1;
private bool m_SendLogoutPacketWhenClosing = true;
private AgentUpdateArgs lastarg;
/// <summary>
/// We retain a single AgentUpdateArgs so that we can constantly reuse it rather than construct a new one for
/// every single incoming AgentUpdate. Every client sends 10 AgentUpdate UDP messages per second, even if it
/// is doing absolutely nothing.
/// </summary>
/// <remarks>
/// This does mean that agent updates must be processed synchronously, at least for each client, and called methods
/// cannot retain a reference to it outside of that method.
/// </remarks>
private AgentUpdateArgs m_lastAgentUpdateArgs;
protected Dictionary<PacketType, PacketProcessor> m_packetHandlers = new Dictionary<PacketType, PacketProcessor>();
protected Dictionary<string, GenericMessage> m_genericPacketHandlers = new Dictionary<string, GenericMessage>(); //PauPaw:Local Generic Message handlers
@ -5197,7 +5222,11 @@ namespace OpenSim.Region.ClientStack.LindenUDP
protected virtual void RegisterLocalPacketHandlers()
{
AddLocalPacketHandler(PacketType.LogoutRequest, HandleLogout);
// If AgentUpdate is ever handled asynchronously, then we will also need to construct a new AgentUpdateArgs
// for each AgentUpdate packet.
AddLocalPacketHandler(PacketType.AgentUpdate, HandleAgentUpdate, false);
AddLocalPacketHandler(PacketType.ViewerEffect, HandleViewerEffect, false);
AddLocalPacketHandler(PacketType.AgentCachedTexture, HandleAgentTextureCached, false);
AddLocalPacketHandler(PacketType.MultipleObjectUpdate, HandleMultipleObjUpdate, false);
@ -5428,73 +5457,71 @@ namespace OpenSim.Region.ClientStack.LindenUDP
{
if (OnAgentUpdate != null)
{
bool update = false;
AgentUpdatePacket agenUpdate = (AgentUpdatePacket)packet;
AgentUpdatePacket agentUpdate = (AgentUpdatePacket)packet;
#region Packet Session and User Check
if (agenUpdate.AgentData.SessionID != SessionId || agenUpdate.AgentData.AgentID != AgentId)
if (agentUpdate.AgentData.SessionID != SessionId || agentUpdate.AgentData.AgentID != AgentId)
{
PacketPool.Instance.ReturnPacket(packet);
return false;
}
#endregion
AgentUpdatePacket.AgentDataBlock x = agenUpdate.AgentData;
bool update = false;
AgentUpdatePacket.AgentDataBlock x = agentUpdate.AgentData;
// We can only check when we have something to check
// against.
if (lastarg != null)
if (m_lastAgentUpdateArgs != null)
{
// These should be ordered from most-likely to
// least likely to change. I've made an initial
// guess at that.
update =
(
(x.BodyRotation != lastarg.BodyRotation) ||
(x.CameraAtAxis != lastarg.CameraAtAxis) ||
(x.CameraCenter != lastarg.CameraCenter) ||
(x.CameraLeftAxis != lastarg.CameraLeftAxis) ||
(x.CameraUpAxis != lastarg.CameraUpAxis) ||
(x.ControlFlags != lastarg.ControlFlags) ||
(x.Far != lastarg.Far) ||
(x.Flags != lastarg.Flags) ||
(x.State != lastarg.State) ||
(x.HeadRotation != lastarg.HeadRotation) ||
(x.SessionID != lastarg.SessionID) ||
(x.AgentID != lastarg.AgentID)
(x.BodyRotation != m_lastAgentUpdateArgs.BodyRotation) ||
(x.CameraAtAxis != m_lastAgentUpdateArgs.CameraAtAxis) ||
(x.CameraCenter != m_lastAgentUpdateArgs.CameraCenter) ||
(x.CameraLeftAxis != m_lastAgentUpdateArgs.CameraLeftAxis) ||
(x.CameraUpAxis != m_lastAgentUpdateArgs.CameraUpAxis) ||
(x.ControlFlags != m_lastAgentUpdateArgs.ControlFlags) ||
(x.Far != m_lastAgentUpdateArgs.Far) ||
(x.Flags != m_lastAgentUpdateArgs.Flags) ||
(x.State != m_lastAgentUpdateArgs.State) ||
(x.HeadRotation != m_lastAgentUpdateArgs.HeadRotation) ||
(x.SessionID != m_lastAgentUpdateArgs.SessionID) ||
(x.AgentID != m_lastAgentUpdateArgs.AgentID)
);
}
else
{
m_lastAgentUpdateArgs = new AgentUpdateArgs();
update = true;
}
// These should be ordered from most-likely to
// least likely to change. I've made an initial
// guess at that.
if (update)
{
// m_log.DebugFormat("[LLCLIENTVIEW]: Triggered AgentUpdate for {0}", sener.Name);
AgentUpdateArgs arg = new AgentUpdateArgs();
arg.AgentID = x.AgentID;
arg.BodyRotation = x.BodyRotation;
arg.CameraAtAxis = x.CameraAtAxis;
arg.CameraCenter = x.CameraCenter;
arg.CameraLeftAxis = x.CameraLeftAxis;
arg.CameraUpAxis = x.CameraUpAxis;
arg.ControlFlags = x.ControlFlags;
arg.Far = x.Far;
arg.Flags = x.Flags;
arg.HeadRotation = x.HeadRotation;
arg.SessionID = x.SessionID;
arg.State = x.State;
m_lastAgentUpdateArgs.AgentID = x.AgentID;
m_lastAgentUpdateArgs.BodyRotation = x.BodyRotation;
m_lastAgentUpdateArgs.CameraAtAxis = x.CameraAtAxis;
m_lastAgentUpdateArgs.CameraCenter = x.CameraCenter;
m_lastAgentUpdateArgs.CameraLeftAxis = x.CameraLeftAxis;
m_lastAgentUpdateArgs.CameraUpAxis = x.CameraUpAxis;
m_lastAgentUpdateArgs.ControlFlags = x.ControlFlags;
m_lastAgentUpdateArgs.Far = x.Far;
m_lastAgentUpdateArgs.Flags = x.Flags;
m_lastAgentUpdateArgs.HeadRotation = x.HeadRotation;
m_lastAgentUpdateArgs.SessionID = x.SessionID;
m_lastAgentUpdateArgs.State = x.State;
UpdateAgent handlerAgentUpdate = OnAgentUpdate;
UpdateAgent handlerPreAgentUpdate = OnPreAgentUpdate;
lastarg = arg; // save this set of arguments for nexttime
if (handlerPreAgentUpdate != null)
OnPreAgentUpdate(this, arg);
OnPreAgentUpdate(this, m_lastAgentUpdateArgs);
if (handlerAgentUpdate != null)
OnAgentUpdate(this, arg);
OnAgentUpdate(this, m_lastAgentUpdateArgs);
handlerAgentUpdate = null;
handlerPreAgentUpdate = null;