OpenSim-Test/OpenSim/Region/ScriptEngine/LSOEngine/ScriptManager.cs

/*
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 * modification, are permitted provided that the following conditions are met:
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 *       derived from this software without specific prior written permission.
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 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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using System;
using libsecondlife;
using OpenSim.Framework;
using OpenSim.Region.Environment.Scenes;
using OpenSim.Region.ScriptEngine.Common;
using OpenSim.Region.ScriptEngine.Common.ScriptEngineBase;

namespace OpenSim.Region.ScriptEngine.LSOEngine
{
    public class ScriptManager : Common.ScriptEngineBase.ScriptManager
    {
        public ScriptManager(Common.ScriptEngineBase.ScriptEngine scriptEngine)
            : base(scriptEngine)
        {
            base.m_scriptEngine = scriptEngine;

        }

        // KEEP TRACK OF SCRIPTS <int id, whatever script>
        //internal Dictionary<uint, Dictionary<LLUUID, LSL_BaseClass>> Scripts = new Dictionary<uint, Dictionary<LLUUID, LSL_BaseClass>>();
        // LOAD SCRIPT
        // UNLOAD SCRIPT
        // PROVIDE SCRIPT WITH ITS INTERFACE TO OpenSim

        public override void _StartScript(uint localID, LLUUID itemID, string Script)
        {
            //IScriptHost root = host.GetRoot();
            Console.WriteLine("ScriptManager StartScript: localID: " + localID + ", itemID: " + itemID);

            // We will initialize and start the script.
            // It will be up to the script itself to hook up the correct events.
            string ScriptSource = String.Empty;

            SceneObjectPart m_host = World.GetSceneObjectPart(localID);

            try
            {
                // Compile (We assume LSL)
                //ScriptSource = LSLCompiler.CompileFromLSLText(Script);

//#if DEBUG
                //long before;
                //before = GC.GetTotalMemory(true); // This force a garbage collect that freezes some windows plateforms
//#endif

                IScript CompiledScript;
                CompiledScript = m_scriptEngine.m_AppDomainManager.LoadScript(ScriptSource);

//#if DEBUG
                //Console.WriteLine("Script " + itemID + " occupies {0} bytes", GC.GetTotalMemory(true) - before);
//#endif

                CompiledScript.Source = ScriptSource;
                // Add it to our script memstruct
                SetScript(localID, itemID, CompiledScript);

                // We need to give (untrusted) assembly a private instance of BuiltIns
                //  this private copy will contain Read-Only FullitemID so that it can bring that on to the server whenever needed.


                BuilIn_Commands LSLB = new BuilIn_Commands(m_scriptEngine, m_host, localID, itemID);

                // Start the script - giving it BuiltIns
                CompiledScript.Start(LSLB);

                // Fire the first start-event
                int eventFlags = m_scriptEngine.m_ScriptManager.GetStateEventFlags(localID, itemID);
                m_host.SetScriptEvents(itemID, eventFlags); 
                m_scriptEngine.m_EventQueueManager.AddToScriptQueue(localID, itemID, "state_entry", EventQueueManager.llDetectNull, new object[] { });
            }
            catch (Exception e) // LEGIT - User Script Compilation
            {
                //m_scriptEngine.Log.Error("[ScriptEngine]: Error compiling script: " + e.ToString());
                try
                {
                    // DISPLAY ERROR INWORLD
                    string text = "Error compiling script:\r\n" + e.Message.ToString();
                    if (text.Length > 1500)
                        text = text.Substring(0, 1500);
                    World.SimChat(Helpers.StringToField(text), ChatTypeEnum.Say, 0, m_host.AbsolutePosition,
                                  m_host.Name, m_host.UUID);
                }
                catch (Exception e2) // LEGIT - User Scripting
                {
                    m_scriptEngine.Log.Error("[ScriptEngine]: Error displaying error in-world: " + e2.ToString());
                    m_scriptEngine.Log.Error("[ScriptEngine]: " +
                                                "Errormessage: Error compiling script:\r\n" + e.Message.ToString());
                }
            }
        }

        public override void _StopScript(uint localID, LLUUID itemID)
        {
            // Stop script
            Console.WriteLine("Stop script localID: " + localID + " LLUID: " + itemID.ToString());

            // Stop long command on script
            m_scriptEngine.m_ASYNCLSLCommandManager.RemoveScript(localID, itemID);

            IScript LSLBC = GetScript(localID, itemID);
            if (LSLBC == null)
                return;

            // TEMP: First serialize it
            //GetSerializedScript(localID, itemID);

            try
            {
                // Get AppDomain
                AppDomain ad = LSLBC.Exec.GetAppDomain();
                // Tell script not to accept new requests
                GetScript(localID, itemID).Exec.StopScript();
                // Remove from internal structure
                RemoveScript(localID, itemID);
                // Tell AppDomain that we have stopped script
                m_scriptEngine.m_AppDomainManager.StopScript(ad);
            }
            catch (Exception e) // LEGIT - Problems caused by User Scripting
            {
                Console.WriteLine("Exception stopping script localID: " + localID + " LLUID: " + itemID.ToString() +
                                  ": " + e.ToString());
            }
        }

        public override void Initialize()
        {
        }
    }
}