From d7b92604963c7ecbddf76db37eabb84ed36fcfde Mon Sep 17 00:00:00 2001
From: Justin Clark-Casey (justincc)
Date: Fri, 11 Jul 2014 00:03:02 +0100
Subject: If [XEngine] ScriptStopStrategy is changed between abort and co-op,
 for the existing session use the previous strategy for that script rather
 than not starting the script at all.

We have to do this since we can't unload existing DLLs if they're all in the same AppDomain.
But we can still update the underlying DLL which will be used in the next simulator session.
---
 .../ScriptEngine/Shared/Instance/ScriptInstance.cs | 57 ++++++++--------------
 1 file changed, 21 insertions(+), 36 deletions(-)

(limited to 'OpenSim/Region/ScriptEngine/Shared/Instance')

diff --git a/OpenSim/Region/ScriptEngine/Shared/Instance/ScriptInstance.cs b/OpenSim/Region/ScriptEngine/Shared/Instance/ScriptInstance.cs
index c5d0752..979c84a 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Instance/ScriptInstance.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Instance/ScriptInstance.cs
@@ -237,12 +237,6 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
             m_postOnRez = postOnRez;
             m_AttachedAvatar = Part.ParentGroup.AttachedAvatar;
             m_RegionID = Part.ParentGroup.Scene.RegionInfo.RegionID;
-
-            if (Engine.Config.GetString("ScriptStopStrategy", "abort") == "co-op")
-            {
-                m_coopTermination = true;
-                m_coopSleepHandle = new XEngineEventWaitHandle(false, EventResetMode.AutoReset);
-            }
         }
 
         /// <summary>
@@ -252,54 +246,38 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
         /// <param name='assembly'></param>
         /// <param name='stateSource'></param>
         /// <returns>false if load failed, true if suceeded</returns>
-        public bool Load(AppDomain dom, string assembly, StateSource stateSource)
+        public bool Load(AppDomain dom, Assembly scriptAssembly, StateSource stateSource)
         {
-            m_Assembly = assembly;
+            //m_Assembly = scriptAssembly.CodeBase;
+            m_Assembly = scriptAssembly.Location;
             m_stateSource = stateSource;
-
-            ApiManager am = new ApiManager();
-
-            foreach (string api in am.GetApis())
-            {
-                m_Apis[api] = am.CreateApi(api);
-                m_Apis[api].Initialize(Engine, Part, ScriptTask, m_coopSleepHandle);
-            }
     
             try
             {
                 object[] constructorParams;
-
-                Assembly scriptAssembly = dom.Load(Path.GetFileNameWithoutExtension(assembly));
                 Type scriptType = scriptAssembly.GetType("SecondLife.XEngineScript");
 
                 if (scriptType != null)
                 {
+                    m_coopTermination = true;
+                    m_coopSleepHandle = new XEngineEventWaitHandle(false, EventResetMode.AutoReset);
                     constructorParams = new object[] { m_coopSleepHandle };
                 }
-                else if (!m_coopTermination)
+                else
                 {
+                    m_coopTermination = false;
                     scriptType = scriptAssembly.GetType("SecondLife.Script");
                     constructorParams = null;
                 }
-                else
-                {
-                    m_log.ErrorFormat(
-                        "[SCRIPT INSTANCE]: Not starting script {0} (id {1}) in part {2} (id {3}) in object {4} in {5}.  You must remove all existing {6}* script DLL files before using enabling co-op termination"
-                        + ", either by setting DeleteScriptsOnStartup = true in [XEngine] for one run"
-                        + " or by deleting these files manually.",
-                        ScriptTask.Name, ScriptTask.ItemID, Part.Name, Part.UUID, Part.ParentGroup.Name, Engine.World.Name, assembly);
-
-                    return false;
-                }
 
 //                m_log.DebugFormat(
 //                    "[SCRIPT INSTANCE]: Looking to load {0} from assembly {1} in {2}", 
-//                    scriptType.FullName, Path.GetFileNameWithoutExtension(assembly), Engine.World.Name);
+//                    scriptType.FullName, m_Assembly, Engine.World.Name);
 
                 if (dom != System.AppDomain.CurrentDomain)
                     m_Script 
                         = (IScript)dom.CreateInstanceAndUnwrap(
-                            Path.GetFileNameWithoutExtension(assembly),
+                            Path.GetFileNameWithoutExtension(m_Assembly),
                             scriptType.FullName,
                             false,
                             BindingFlags.Default,
@@ -327,11 +305,19 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
             {
                 m_log.ErrorFormat(
                     "[SCRIPT INSTANCE]: Not starting script {0} (id {1}) in part {2} (id {3}) in object {4} in {5}.  Error loading assembly {6}.  Exception {7}{8}",
-                    ScriptTask.Name, ScriptTask.ItemID, Part.Name, Part.UUID, Part.ParentGroup.Name, Engine.World.Name, assembly, e.Message, e.StackTrace);
+                    ScriptTask.Name, ScriptTask.ItemID, Part.Name, Part.UUID, Part.ParentGroup.Name, Engine.World.Name, m_Assembly, e.Message, e.StackTrace);
 
                 return false;
             }
 
+            ApiManager am = new ApiManager();
+
+            foreach (string api in am.GetApis())
+            {
+                m_Apis[api] = am.CreateApi(api);
+                m_Apis[api].Initialize(Engine, Part, ScriptTask, m_coopSleepHandle);
+            }
+
             try
             {
                 foreach (KeyValuePair<string,IScriptApi> kv in m_Apis)
@@ -341,8 +327,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
 
 //                // m_log.Debug("[Script] Script instance created");
 
-                Part.SetScriptEvents(ItemID,
-                                     (int)m_Script.GetStateEventFlags(State));
+                Part.SetScriptEvents(ItemID, (int)m_Script.GetStateEventFlags(State));
             }
             catch (Exception e)
             {
@@ -355,8 +340,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
 
             m_SaveState = true;
 
-            string savedState = Path.Combine(Path.GetDirectoryName(assembly),
-                    ItemID.ToString() + ".state");
+            string savedState = Path.Combine(Path.GetDirectoryName(m_Assembly), ItemID.ToString() + ".state");
+
             if (File.Exists(savedState))
             {
                 string xml = String.Empty;
-- 
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