1 files changed, 238 insertions, 238 deletions

diff --git a/OpenSim/Region/ScriptEngine/Common/ScriptEngineBase/AppDomainManager.cs b/OpenSim/Region/ScriptEngine/Common/ScriptEngineBase/AppDomainManager.cs
index df00d4e..68ad88d 100644
--- a/OpenSim/Region/ScriptEngine/Common/ScriptEngineBase/AppDomainManager.cs
+++ b/OpenSim/Region/ScriptEngine/Common/ScriptEngineBase/AppDomainManager.cs
@@ -1,239 +1,239 @@
-/*

-* Copyright (c) Contributors, http://opensimulator.org/

-* See CONTRIBUTORS.TXT for a full list of copyright holders.

-*

-* Redistribution and use in source and binary forms, with or without

-* modification, are permitted provided that the following conditions are met:

-*     * Redistributions of source code must retain the above copyright

-*       notice, this list of conditions and the following disclaimer.

-*     * Redistributions in binary form must reproduce the above copyright

-*       notice, this list of conditions and the following disclaimer in the

-*       documentation and/or other materials provided with the distribution.

-*     * Neither the name of the OpenSim Project nor the

-*       names of its contributors may be used to endorse or promote products

-*       derived from this software without specific prior written permission.

-*

-* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS AS IS AND ANY

-* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

-* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

-* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY

-* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

-* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

-* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

-* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

-* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

-* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

-* 

-*/

-

-

-using System;

-using System.Collections;

-using System.Collections.Generic;

-using System.Reflection;

-using OpenSim.Region.ScriptEngine.Common;

-

-namespace OpenSim.Region.ScriptEngine.Common.ScriptEngineBase

-{

-    public class AppDomainManager

-    {

-

-        //

-        // This class does AppDomain handling and loading/unloading of scripts in it.

-        // It is instanced in "ScriptEngine" and controlled from "ScriptManager"

-        //

-        // 1. Create a new AppDomain if old one is full (or doesn't exist)

-        // 2. Load scripts into AppDomain

-        // 3. Unload scripts from AppDomain (stopping them and marking them as inactive)

-        // 4. Unload AppDomain completely when all scripts in it has stopped

-        //

-

-

-        private int maxScriptsPerAppDomain = 1;

-

-        /// <summary>

-        /// Internal list of all AppDomains

-        /// </summary>

-        private List<AppDomainStructure> appDomains = new List<AppDomainStructure>();

-

-        /// <summary>

-        /// Structure to keep track of data around AppDomain

-        /// </summary>

-        private class AppDomainStructure

-        {

-            /// <summary>

-            /// The AppDomain itself

-            /// </summary>

-            public AppDomain CurrentAppDomain;

-

-            /// <summary>

-            /// Number of scripts loaded into AppDomain

-            /// </summary>

-            public int ScriptsLoaded;

-

-            /// <summary>

-            /// Number of dead scripts

-            /// </summary>

-            public int ScriptsWaitingUnload;

-        }

-

-        /// <summary>

-        /// Current AppDomain

-        /// </summary>

-        private AppDomainStructure currentAD;

-

-        private object getLock = new object(); // Mutex

-        private object freeLock = new object(); // Mutex

-

-        //private ScriptEngine m_scriptEngine;

-        //public AppDomainManager(ScriptEngine scriptEngine)

-        public AppDomainManager()

-        {

-            //m_scriptEngine = scriptEngine;

-        }

-

-        /// <summary>

-        /// Find a free AppDomain, creating one if necessary

-        /// </summary>

-        /// <returns>Free AppDomain</returns>

-        private AppDomainStructure GetFreeAppDomain()

-        {

-            Console.WriteLine("Finding free AppDomain");

-            lock (getLock)

-            {

-                // Current full?

-                if (currentAD != null && currentAD.ScriptsLoaded >= maxScriptsPerAppDomain)

-                {

-                    // Add it to AppDomains list and empty current

-                    appDomains.Add(currentAD);

-                    currentAD = null;

-                }

-                // No current

-                if (currentAD == null)

-                {

-                    // Create a new current AppDomain

-                    currentAD = new AppDomainStructure();

-                    currentAD.CurrentAppDomain = PrepareNewAppDomain();

-                }

-

-                Console.WriteLine("Scripts loaded in this Appdomain: " + currentAD.ScriptsLoaded);

-                return currentAD;

-            } // lock

-        }

-

-        private int AppDomainNameCount;

-

-        /// <summary>

-        /// Create and prepare a new AppDomain for scripts

-        /// </summary>

-        /// <returns>The new AppDomain</returns>

-        private AppDomain PrepareNewAppDomain()

-        {

-            // Create and prepare a new AppDomain

-            AppDomainNameCount++;

-            // TODO: Currently security match current appdomain

-

-            // Construct and initialize settings for a second AppDomain.

-            AppDomainSetup ads = new AppDomainSetup();

-            ads.ApplicationBase = AppDomain.CurrentDomain.BaseDirectory;

-            ads.DisallowBindingRedirects = false;

-            ads.DisallowCodeDownload = true;

-            ads.LoaderOptimization = LoaderOptimization.MultiDomain; // Sounds good ;)

-            ads.ShadowCopyFiles = "true"; // Enabled shadowing

-            ads.ConfigurationFile = AppDomain.CurrentDomain.SetupInformation.ConfigurationFile;

-

-            AppDomain AD = AppDomain.CreateDomain("ScriptAppDomain_" + AppDomainNameCount, null, ads);

-            Console.WriteLine("Loading: " +

-                              AssemblyName.GetAssemblyName("OpenSim.Region.ScriptEngine.Common.dll").ToString());

-            AD.Load(AssemblyName.GetAssemblyName("OpenSim.Region.ScriptEngine.Common.dll"));

-

-            // Return the new AppDomain

-            return AD;

-        }

-

-        /// <summary>

-        /// Unload appdomains that are full and have only dead scripts

-        /// </summary>

-        private void UnloadAppDomains()

-        {

-            lock (freeLock)

-            {

-                // Go through all

-                foreach (AppDomainStructure ads in new ArrayList(appDomains))

-                {

-                    // Don't process current AppDomain

-                    if (ads.CurrentAppDomain != currentAD.CurrentAppDomain)

-                    {

-                        // Not current AppDomain

-                        // Is number of unloaded bigger or equal to number of loaded?

-                        if (ads.ScriptsLoaded <= ads.ScriptsWaitingUnload)

-                        {

-                            Console.WriteLine("Found empty AppDomain, unloading");

-                            // Remove from internal list

-                            appDomains.Remove(ads);

-#if DEBUG

-                            long m = GC.GetTotalMemory(true);

-#endif

-                            // Unload

-                            AppDomain.Unload(ads.CurrentAppDomain);

-#if DEBUG

-                            Console.WriteLine("AppDomain unload freed " + (m - GC.GetTotalMemory(true)) +

-                                              " bytes of memory");

-#endif

-                        }

-                    }

-                } // foreach

-            } // lock

-        }

-

-

-        public IScript LoadScript(string FileName)

-        {

-            // Find next available AppDomain to put it in

-            AppDomainStructure FreeAppDomain = GetFreeAppDomain();

-

-            Console.WriteLine("Loading into AppDomain: " + FileName);

-            IScript mbrt =

-                (IScript)

-                FreeAppDomain.CurrentAppDomain.CreateInstanceFromAndUnwrap(FileName, "SecondLife.Script");

-            //Console.WriteLine("ScriptEngine AppDomainManager: is proxy={0}", RemotingServices.IsTransparentProxy(mbrt));

-            FreeAppDomain.ScriptsLoaded++;

-

-            return mbrt;

-        }

-

-

-        /// <summary>

-        /// Increase "dead script" counter for an AppDomain

-        /// </summary>

-        /// <param name="ad"></param>

-        //[Obsolete("Needs fixing, needs a real purpose in life!!!")]

-        public void StopScript(AppDomain ad)

-        {

-            lock (freeLock)

-            {

-                Console.WriteLine("Stopping script in AppDomain");

-                // Check if it is current AppDomain

-                if (currentAD.CurrentAppDomain == ad)

-                {

-                    // Yes - increase

-                    currentAD.ScriptsWaitingUnload++;

-                    return;

-                }

-

-                // Lopp through all AppDomains

-                foreach (AppDomainStructure ads in new ArrayList(appDomains))

-                {

-                    if (ads.CurrentAppDomain == ad)

-                    {

-                        // Found it

-                        ads.ScriptsWaitingUnload++;

-                        break;

-                    }

-                } // foreach

-            } // lock

-

-            UnloadAppDomains(); // Outsite lock, has its own GetLock

-        }

-    }

+/*
+* Copyright (c) Contributors, http://opensimulator.org/
+* See CONTRIBUTORS.TXT for a full list of copyright holders.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above copyright
+*       notice, this list of conditions and the following disclaimer in the
+*       documentation and/or other materials provided with the distribution.
+*     * Neither the name of the OpenSim Project nor the
+*       names of its contributors may be used to endorse or promote products
+*       derived from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS AS IS AND ANY
+* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+* 
+*/
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Reflection;
+using OpenSim.Region.ScriptEngine.Common;
+
+namespace OpenSim.Region.ScriptEngine.Common.ScriptEngineBase
+{
+    public class AppDomainManager
+    {
+
+        //
+        // This class does AppDomain handling and loading/unloading of scripts in it.
+        // It is instanced in "ScriptEngine" and controlled from "ScriptManager"
+        //
+        // 1. Create a new AppDomain if old one is full (or doesn't exist)
+        // 2. Load scripts into AppDomain
+        // 3. Unload scripts from AppDomain (stopping them and marking them as inactive)
+        // 4. Unload AppDomain completely when all scripts in it has stopped
+        //
+
+
+        private int maxScriptsPerAppDomain = 1;
+
+        /// <summary>
+        /// Internal list of all AppDomains
+        /// </summary>
+        private List<AppDomainStructure> appDomains = new List<AppDomainStructure>();
+
+        /// <summary>
+        /// Structure to keep track of data around AppDomain
+        /// </summary>
+        private class AppDomainStructure
+        {
+            /// <summary>
+            /// The AppDomain itself
+            /// </summary>
+            public AppDomain CurrentAppDomain;
+
+            /// <summary>
+            /// Number of scripts loaded into AppDomain
+            /// </summary>
+            public int ScriptsLoaded;
+
+            /// <summary>
+            /// Number of dead scripts
+            /// </summary>
+            public int ScriptsWaitingUnload;
+        }
+
+        /// <summary>
+        /// Current AppDomain
+        /// </summary>
+        private AppDomainStructure currentAD;
+
+        private object getLock = new object(); // Mutex
+        private object freeLock = new object(); // Mutex
+
+        //private ScriptEngine m_scriptEngine;
+        //public AppDomainManager(ScriptEngine scriptEngine)
+        public AppDomainManager()
+        {
+            //m_scriptEngine = scriptEngine;
+        }
+
+        /// <summary>
+        /// Find a free AppDomain, creating one if necessary
+        /// </summary>
+        /// <returns>Free AppDomain</returns>
+        private AppDomainStructure GetFreeAppDomain()
+        {
+            Console.WriteLine("Finding free AppDomain");
+            lock (getLock)
+            {
+                // Current full?
+                if (currentAD != null && currentAD.ScriptsLoaded >= maxScriptsPerAppDomain)
+                {
+                    // Add it to AppDomains list and empty current
+                    appDomains.Add(currentAD);
+                    currentAD = null;
+                }
+                // No current
+                if (currentAD == null)
+                {
+                    // Create a new current AppDomain
+                    currentAD = new AppDomainStructure();
+                    currentAD.CurrentAppDomain = PrepareNewAppDomain();
+                }
+
+                Console.WriteLine("Scripts loaded in this Appdomain: " + currentAD.ScriptsLoaded);
+                return currentAD;
+            } // lock
+        }
+
+        private int AppDomainNameCount;
+
+        /// <summary>
+        /// Create and prepare a new AppDomain for scripts
+        /// </summary>
+        /// <returns>The new AppDomain</returns>
+        private AppDomain PrepareNewAppDomain()
+        {
+            // Create and prepare a new AppDomain
+            AppDomainNameCount++;
+            // TODO: Currently security match current appdomain
+
+            // Construct and initialize settings for a second AppDomain.
+            AppDomainSetup ads = new AppDomainSetup();
+            ads.ApplicationBase = AppDomain.CurrentDomain.BaseDirectory;
+            ads.DisallowBindingRedirects = false;
+            ads.DisallowCodeDownload = true;
+            ads.LoaderOptimization = LoaderOptimization.MultiDomain; // Sounds good ;)
+            ads.ShadowCopyFiles = "true"; // Enabled shadowing
+            ads.ConfigurationFile = AppDomain.CurrentDomain.SetupInformation.ConfigurationFile;
+
+            AppDomain AD = AppDomain.CreateDomain("ScriptAppDomain_" + AppDomainNameCount, null, ads);
+            Console.WriteLine("Loading: " +
+                              AssemblyName.GetAssemblyName("OpenSim.Region.ScriptEngine.Common.dll").ToString());
+            AD.Load(AssemblyName.GetAssemblyName("OpenSim.Region.ScriptEngine.Common.dll"));
+
+            // Return the new AppDomain
+            return AD;
+        }
+
+        /// <summary>
+        /// Unload appdomains that are full and have only dead scripts
+        /// </summary>
+        private void UnloadAppDomains()
+        {
+            lock (freeLock)
+            {
+                // Go through all
+                foreach (AppDomainStructure ads in new ArrayList(appDomains))
+                {
+                    // Don't process current AppDomain
+                    if (ads.CurrentAppDomain != currentAD.CurrentAppDomain)
+                    {
+                        // Not current AppDomain
+                        // Is number of unloaded bigger or equal to number of loaded?
+                        if (ads.ScriptsLoaded <= ads.ScriptsWaitingUnload)
+                        {
+                            Console.WriteLine("Found empty AppDomain, unloading");
+                            // Remove from internal list
+                            appDomains.Remove(ads);
+#if DEBUG
+                            long m = GC.GetTotalMemory(true);
+#endif
+                            // Unload
+                            AppDomain.Unload(ads.CurrentAppDomain);
+#if DEBUG
+                            Console.WriteLine("AppDomain unload freed " + (m - GC.GetTotalMemory(true)) +
+                                              " bytes of memory");
+#endif
+                        }
+                    }
+                } // foreach
+            } // lock
+        }
+
+
+        public IScript LoadScript(string FileName)
+        {
+            // Find next available AppDomain to put it in
+            AppDomainStructure FreeAppDomain = GetFreeAppDomain();
+
+            Console.WriteLine("Loading into AppDomain: " + FileName);
+            IScript mbrt =
+                (IScript)
+                FreeAppDomain.CurrentAppDomain.CreateInstanceFromAndUnwrap(FileName, "SecondLife.Script");
+            //Console.WriteLine("ScriptEngine AppDomainManager: is proxy={0}", RemotingServices.IsTransparentProxy(mbrt));
+            FreeAppDomain.ScriptsLoaded++;
+
+            return mbrt;
+        }
+
+
+        /// <summary>
+        /// Increase "dead script" counter for an AppDomain
+        /// </summary>
+        /// <param name="ad"></param>
+        //[Obsolete("Needs fixing, needs a real purpose in life!!!")]
+        public void StopScript(AppDomain ad)
+        {
+            lock (freeLock)
+            {
+                Console.WriteLine("Stopping script in AppDomain");
+                // Check if it is current AppDomain
+                if (currentAD.CurrentAppDomain == ad)
+                {
+                    // Yes - increase
+                    currentAD.ScriptsWaitingUnload++;
+                    return;
+                }
+
+                // Lopp through all AppDomains
+                foreach (AppDomainStructure ads in new ArrayList(appDomains))
+                {
+                    if (ads.CurrentAppDomain == ad)
+                    {
+                        // Found it
+                        ads.ScriptsWaitingUnload++;
+                        break;
+                    }
+                } // foreach
+            } // lock
+
+            UnloadAppDomains(); // Outsite lock, has its own GetLock
+        }
+    }
 }
\ No newline at end of file