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Clean up orphaned json stores. This can happen when an object is

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removed, when a script is removed, or when a script is reset. Also
added a stats command to track the number of json stores used by
a region. Will probably add some more commands later.
This commit is contained in:
Mic Bowman
2014-01-20 11:33:49 -08:00
parent 4800303abd
commit 2e78e89c36
4 changed files with 281 additions and 3 deletions
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OpenSim/Region/OptionalModules/Scripting/JsonStore/JsonStoreScriptModule.cs
+40 -1
View File
@@ -59,7 +59,9 @@ namespace OpenSim.Region.OptionalModules.Scripting.JsonStore
private IScriptModuleComms m_comms;
private IJsonStoreModule m_store;
private Dictionary<UUID,HashSet<UUID>> m_scriptStores = new Dictionary<UUID,HashSet<UUID>>();
#region Region Module interface
// -----------------------------------------------------------------
@@ -126,6 +128,8 @@ namespace OpenSim.Region.OptionalModules.Scripting.JsonStore
// -----------------------------------------------------------------
public void AddRegion(Scene scene)
{
scene.EventManager.OnScriptReset += HandleScriptReset;
scene.EventManager.OnRemoveScript += HandleScriptReset;
}
// -----------------------------------------------------------------
@@ -134,10 +138,32 @@ namespace OpenSim.Region.OptionalModules.Scripting.JsonStore
// -----------------------------------------------------------------
public void RemoveRegion(Scene scene)
{
scene.EventManager.OnScriptReset -= HandleScriptReset;
scene.EventManager.OnRemoveScript -= HandleScriptReset;
// need to remove all references to the scene in the subscription
// list to enable full garbage collection of the scene object
}
// -----------------------------------------------------------------
/// <summary>
/// </summary>
// -----------------------------------------------------------------
private void HandleScriptReset(uint localID, UUID itemID)
{
HashSet<UUID> stores;
lock (m_scriptStores)
{
if (! m_scriptStores.TryGetValue(itemID, out stores))
return;
m_scriptStores.Remove(itemID);
}
foreach (UUID id in stores)
m_store.DestroyStore(id);
}
// -----------------------------------------------------------------
/// <summary>
/// Called when all modules have been added for a region. This is
@@ -250,6 +276,13 @@ namespace OpenSim.Region.OptionalModules.Scripting.JsonStore
if (! m_store.CreateStore(value, ref uuid))
GenerateRuntimeError("Failed to create Json store");
lock (m_scriptStores)
{
if (! m_scriptStores.ContainsKey(scriptID))
m_scriptStores[scriptID] = new HashSet<UUID>();
m_scriptStores[scriptID].Add(uuid);
}
return uuid;
}
@@ -261,6 +294,12 @@ namespace OpenSim.Region.OptionalModules.Scripting.JsonStore
[ScriptInvocation]
public int JsonDestroyStore(UUID hostID, UUID scriptID, UUID storeID)
{
lock(m_scriptStores)
{
if (m_scriptStores.ContainsKey(scriptID))
m_scriptStores[scriptID].Remove(storeID);
}
return m_store.DestroyStore(storeID) ? 1 : 0;
}