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Add some locking on m_undo in SceneObjectPart

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This commit is contained in:
Melanie Thielker
2008-08-17 19:17:44 +00:00
parent 5d6a42a22e
commit fe1d78bb78
1 changed files with 25 additions and 15 deletions
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40
OpenSim/Region/Environment/Scenes/SceneObjectPart.cs
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@@ -1177,7 +1177,10 @@ namespace OpenSim.Region.Environment.Scenes
public void ClearUndoState()
{
m_undo.Clear();
lock(m_undo)
{
m_undo.Clear();
}
StoreUndoState();
}
@@ -2446,22 +2449,26 @@ namespace OpenSim.Region.Environment.Scenes
{
if (m_parentGroup != null)
{
if (m_undo.Count > 0)
lock(m_undo)
{
UndoState last = m_undo.Peek();
if (last != null)
if (m_undo.Count > 0)
{
if (last.Compare(this))
return;
UndoState last = m_undo.Peek();
if (last != null)
{
if (last.Compare(this))
return;
}
}
}
if (m_parentGroup.GetSceneMaxUndo() > 0)
{
UndoState nUndo = new UndoState(this);
if (m_parentGroup.GetSceneMaxUndo() > 0)
{
UndoState nUndo = new UndoState(this);
m_undo.Push(nUndo);
m_undo.Push(nUndo);
}
}
}
@@ -2951,11 +2958,14 @@ namespace OpenSim.Region.Environment.Scenes
public void Undo()
{
if (m_undo.Count > 0)
lock(m_undo)
{
UndoState goback = m_undo.Pop();
if (goback != null)
goback.PlaybackState(this);
if (m_undo.Count > 0)
{
UndoState goback = m_undo.Pop();
if (goback != null)
goback.PlaybackState(this);
}
}
}