// Returns true if it found the script loaded and decremented the refcount.
private bool PerformUnloadRequest(LoadUnloadRequest unloadReq)
{
bool rc = false;
// Find based on the item ID
VM.Interpreter loadedScript = _exeScheduler.FindScript(unloadReq.ItemId);
if (loadedScript != null)
{
LoadedScript reffedScript;
//tell the scheduler the script needs to be pulled
_exeScheduler.DoUnload(unloadReq.ItemId, unloadReq);
//tell the async command manager that it needs to remove this script
AsyncCommandManager.RemoveScript(_engineInterface, unloadReq.LocalId, unloadReq.ItemId);
//tell the state manager to remove this script
_stateManager.ScriptUnloaded(unloadReq.ItemId);
//decref and unload if refcount is 0 based on the Asset ID
if (_loadedScripts.TryGetValue(loadedScript.Script.AssetId, out reffedScript))
{
if (--reffedScript.RefCount == 0)
{
_loadedScripts.Remove(loadedScript.Script.AssetId);
_unloadedScriptCache.Add(loadedScript.Script.AssetId, loadedScript.Script);
}
rc = true;
}
}
// Callback here because if the Item ID was not found, the callback would be meaningless
if (unloadReq.PostUnloadCallback != null)
{
// Now call the completion callback (e.g. now that it is safe for the script to be removed in the delete case).
unloadReq.PostUnloadCallback(unloadReq.Prim, unloadReq.ItemId, unloadReq.CallbackParams.AllowedDrop, unloadReq.CallbackParams.FireEvents, unloadReq.CallbackParams.ReplaceArgs);
}
return(rc);
}
