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Fix bug where crossing to a neighbouring region and back again would trigger an exception, and a second recross would stop the user moving until relog

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Also fixes an issue where sitting avatar counts became inaccurate after any cross.
Part of the problem was due to cloning code using MemberwiseClone() but not resetting certain collection structures.
Adds regression test for this case.
In relation to http://opensimulator.org/mantis/view.php?id=7050
This commit is contained in:
Justin Clark-Casey (justincc)
2014-04-03 00:19:53 +01:00
parent 2051535ce1
commit e6d0dcd4e8
4 changed files with 138 additions and 8 deletions
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31
OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
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@@ -552,12 +552,29 @@ namespace OpenSim.Region.Framework.Scenes
av.IsInTransit = true;
CrossAgentToNewRegionDelegate d = entityTransfer.CrossAgentToNewRegionAsync;
d.BeginInvoke(av, val, destination, av.Flying, version, CrossAgentToNewRegionCompleted, d);
// A temporary measure to allow regression tests to work.
// Quite possibly, all BeginInvoke() calls should be replaced by Util.FireAndForget
// or similar since BeginInvoke() always uses the system threadpool to launch
// threads rather than any replace threadpool that we might be using.
if (Util.FireAndForgetMethod == FireAndForgetMethod.RegressionTest)
{
entityTransfer.CrossAgentToNewRegionAsync(av, val, destination, av.Flying, version);
CrossAgentToNewRegionCompleted(av);
}
else
{
CrossAgentToNewRegionDelegate d = entityTransfer.CrossAgentToNewRegionAsync;
d.BeginInvoke(
av, val, destination, av.Flying, version,
ar => CrossAgentToNewRegionCompleted(d.EndInvoke(ar)), null);
}
}
else
{
m_log.DebugFormat("[SCENE OBJECT]: Crossing avatar alreasy in transit {0} to {1}", av.Name, val);
}
}
avsToCross.Clear();
return;
}
@@ -630,11 +647,8 @@ namespace OpenSim.Region.Framework.Scenes
set { RootPart.Velocity = value; }
}
private void CrossAgentToNewRegionCompleted(IAsyncResult iar)
private void CrossAgentToNewRegionCompleted(ScenePresence agent)
{
CrossAgentToNewRegionDelegate icon = (CrossAgentToNewRegionDelegate)iar.AsyncState;
ScenePresence agent = icon.EndInvoke(iar);
//// If the cross was successful, this agent is a child agent
if (agent.IsChildAgent)
{
@@ -1698,10 +1712,15 @@ namespace OpenSim.Region.Framework.Scenes
/// <returns></returns>
public SceneObjectGroup Copy(bool userExposed)
{
// FIXME: This is dangerous since it's easy to forget to reset some references when necessary and end up
// with bugs that only occur in some circumstances (e.g. crossing between regions on the same simulator
// but not between regions on different simulators). Really, all copying should be done explicitly.
SceneObjectGroup dupe = (SceneObjectGroup)MemberwiseClone();
dupe.Backup = false;
dupe.m_parts = new MapAndArray<OpenMetaverse.UUID, SceneObjectPart>();
dupe.m_sittingAvatars = new List<UUID>();
dupe.m_linkedAvatars = new List<ScenePresence>();
dupe.CopyRootPart(m_rootPart, OwnerID, GroupID, userExposed);
dupe.m_rootPart.LinkNum = m_rootPart.LinkNum;