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If the uuid of a SceneObjectGroup (RootPart) is changed before adding to the scene, remove the old uuid reference from m_parts as well as adding the new one. 

The separate remove and set operations is SOG.set_UUID() are both locked under m_parts.SyncRoot since they are logically atomic (though this isn't such an issue if the SOG isn't part of a scene)
Added unit test for this behaviour.
Also changed the second m_parts.AddOrReplace() to m_parts.Add().  As the old reference is now removed we never end up replacing an identical uuid.  And if we replace a uuid that's already there (from a child part) then this is an error.
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Justin Clark-Casey (justincc) 2010-09-20 18:35:19 +01:00
parent b49cb3355f
commit a85779e477
2 changed files with 41 additions and 2 deletions
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8
OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
View File

@ -330,8 +330,12 @@ namespace OpenSim.Region.Framework.Scenes
get { return m_rootPart.UUID; }
set
{
m_rootPart.UUID = value;
m_parts.AddOrReplace(value, m_rootPart);
lock (m_parts.SyncRoot)
{
m_parts.Remove(m_rootPart.UUID);
m_rootPart.UUID = value;
m_parts.Add(value, m_rootPart);
}
}
}

35
OpenSim/Region/Framework/Scenes/Tests/SceneObjectBasicTests.cs
View File

@ -189,5 +189,40 @@ namespace OpenSim.Region.Framework.Scenes.Tests
// SceneObjectPart retrievedPart = scene.GetSceneObjectPart(part.LocalId);
// Assert.That(retrievedPart, Is.Null);
//}
/// <summary>
/// Changing a scene object uuid changes the root part uuid. This is a valid operation if the object is not
/// in a scene and is useful if one wants to supply a UUID directly rather than use the one generated by
/// OpenSim.
/// </summary>
[Test]
public void TestChangeSceneObjectUuid()
{
string rootPartName = "rootpart";
UUID rootPartUuid = new UUID("00000000-0000-0000-0000-000000000001");
string childPartName = "childPart";
UUID childPartUuid = new UUID("00000000-0000-0000-0001-000000000000");
SceneObjectPart rootPart
= new SceneObjectPart(UUID.Zero, PrimitiveBaseShape.Default, Vector3.Zero, Quaternion.Identity, Vector3.Zero)
{ Name = rootPartName, UUID = rootPartUuid };
SceneObjectPart linkPart
= new SceneObjectPart(UUID.Zero, PrimitiveBaseShape.Default, Vector3.Zero, Quaternion.Identity, Vector3.Zero)
{ Name = childPartName, UUID = childPartUuid };
SceneObjectGroup sog = new SceneObjectGroup(rootPart);
sog.AddPart(linkPart);
Assert.That(sog.UUID, Is.EqualTo(rootPartUuid));
Assert.That(sog.RootPart.UUID, Is.EqualTo(rootPartUuid));
Assert.That(sog.Parts.Length, Is.EqualTo(2));
UUID newRootPartUuid = new UUID("00000000-0000-0000-0000-000000000002");
sog.UUID = newRootPartUuid;
Assert.That(sog.UUID, Is.EqualTo(newRootPartUuid));
Assert.That(sog.RootPart.UUID, Is.EqualTo(newRootPartUuid));
Assert.That(sog.Parts.Length, Is.EqualTo(2));
}
}
}