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From: Christopher Yeoh <yeohc@au1.ibm.com> 

This patch fixes the problem where if an object containing a script is
deleted at the same time as an object containing the same script is
rezzed, it can result in the assembly file being deleted after the
second object script initialisation has found it but not started using
it yet, resulting in the script not starting up.
0.6.3-post-fixes
Sean Dague 2009-02-05 16:12:51 +00:00
parent 2a998d6cd7
commit efcf00ee60
1 changed files with 46 additions and 17 deletions
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29
OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
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@ -100,6 +100,9 @@ namespace OpenSim.Region.ScriptEngine.XEngine
private Dictionary<UUID, string> m_Assemblies =
new Dictionary<UUID, string>();
private Dictionary<string, int> m_AddingAssemblies =
new Dictionary<string, int>();
// This will list AppDomains by script asset
private Dictionary<UUID, AppDomain> m_AppDomains =
@ -508,9 +511,17 @@ namespace OpenSim.Region.ScriptEngine.XEngine
Thread.CurrentThread.CurrentCulture = USCulture;
try
{
lock (m_AddingAssemblies)
{
assembly = m_Compiler.PerformScriptCompile(script,
assetID.ToString());
if (!m_AddingAssemblies.ContainsKey(assembly)) {
m_AddingAssemblies[assembly] = 1;
} else {
m_AddingAssemblies[assembly]++;
}
}
}
catch (Exception e)
{
@ -592,6 +603,10 @@ namespace OpenSim.Region.ScriptEngine.XEngine
m_log.ErrorFormat("[XEngine] Exception creating app domain:\n {0}", e.ToString());
m_ScriptErrorMessage += "Exception creating app domain:\n";
m_ScriptFailCount++;
lock (m_AddingAssemblies)
{
m_AddingAssemblies[assembly]--;
}
return false;
}
}
@ -626,6 +641,11 @@ namespace OpenSim.Region.ScriptEngine.XEngine
if (!m_Assemblies.ContainsKey(assetID))
m_Assemblies[assetID] = assembly;
lock (m_AddingAssemblies)
{
m_AddingAssemblies[assembly]--;
}
if (instance!=null)
instance.Init();
}
@ -710,8 +730,15 @@ namespace OpenSim.Region.ScriptEngine.XEngine
assetIDList.Remove(i.AssetID);
}
lock (m_AddingAssemblies)
{
foreach (UUID assetID in assetIDList)
{
// Do not remove assembly files if another instance of the script
// is currently initialising
if (!m_AddingAssemblies.ContainsKey(m_Assemblies[assetID])
|| m_AddingAssemblies[m_Assemblies[assetID]] == 0)
{
// m_log.DebugFormat("[XEngine] Removing unreferenced assembly {0}", m_Assemblies[assetID]);
try
{
@ -730,6 +757,8 @@ namespace OpenSim.Region.ScriptEngine.XEngine
m_Assemblies.Remove(assetID);
}
}
}
}
private void UnloadAppDomain(UUID id)
{