mirror of
https://github.com/opensim/opensim.git
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rename XMREngine as Yengine (still not all done), big mess source formating changes, move state files to proper folder, fix a source file locking on errors, more changes for cross platform including from Mike,... yes yes i know a messy commit
This commit is contained in:
UbitUmarov
724
OpenSim/Region/ScriptEngine/YEngine/XMRInstCtor.cs
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724
OpenSim/Region/ScriptEngine/YEngine/XMRInstCtor.cs
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@@ -0,0 +1,724 @@
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/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSimulator Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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using System;
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using System.Threading;
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using System.Reflection;
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using System.Collections;
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using System.Collections.Generic;
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using System.Runtime.Remoting.Lifetime;
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using System.Security.Policy;
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using System.IO;
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using System.Xml;
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using System.Text;
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using OpenMetaverse;
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using OpenSim.Framework;
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using OpenSim.Region.ScriptEngine.Interfaces;
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using OpenSim.Region.ScriptEngine.Shared;
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using OpenSim.Region.ScriptEngine.Shared.Api;
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using OpenSim.Region.ScriptEngine.Shared.ScriptBase;
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using OpenSim.Region.ScriptEngine.Yengine;
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using OpenSim.Region.Framework.Scenes;
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using log4net;
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using LSL_Float = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLFloat;
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using LSL_Integer = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLInteger;
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using LSL_Key = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLString;
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using LSL_List = OpenSim.Region.ScriptEngine.Shared.LSL_Types.list;
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using LSL_Rotation = OpenSim.Region.ScriptEngine.Shared.LSL_Types.Quaternion;
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using LSL_String = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLString;
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using LSL_Vector = OpenSim.Region.ScriptEngine.Shared.LSL_Types.Vector3;
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namespace OpenSim.Region.ScriptEngine.Yengine
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{
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public partial class XMRInstance
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{
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/****************************************************************************\
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* The only method of interest to outside this module is the Initializer. *
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* *
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* The rest of this module contains support routines for the Initializer. *
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\****************************************************************************/
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/**
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* @brief Initializer, loads script in memory and all ready for running.
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* @param engine = YEngine instance this is part of
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* @param scriptBasePath = directory name where files are
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* @param stackSize = number of bytes to allocate for stacks
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* @param errors = return compiler errors in this array
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* @param forceRecomp = force recompile
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* Throws exception if any error, so it was successful if it returns.
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*/
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public void Initialize(Yengine engine, string scriptBasePath,
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int stackSize, int heapSize, ArrayList errors)
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{
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if(stackSize < 16384)
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stackSize = 16384;
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if(heapSize < 16384)
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heapSize = 16384;
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// Save all call parameters in instance vars for easy access.
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m_Engine = engine;
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m_ScriptBasePath = scriptBasePath;
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m_StackSize = stackSize;
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m_StackLeft = stackSize;
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m_HeapSize = heapSize;
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m_CompilerErrors = errors;
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m_StateFileName = GetStateFileName(scriptBasePath, m_ItemID);
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// Not in any XMRInstQueue.
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m_NextInst = this;
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m_PrevInst = this;
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// Set up list of API calls it has available.
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// This also gets the API modules ready to accept setup data, such as
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// active listeners being restored.
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IScriptApi scriptApi;
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ApiManager am = new ApiManager();
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foreach(string api in am.GetApis())
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{
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// Instantiate the API for this script instance.
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if(api != "LSL")
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scriptApi = am.CreateApi(api);
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else
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scriptApi = m_XMRLSLApi = new XMRLSL_Api();
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// Connect it up to the instance.
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InitScriptApi(engine, api, scriptApi);
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}
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m_XMRLSLApi.InitXMRLSLApi(this);
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// Get object loaded, compiling script and reading .state file as
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// necessary to restore the state.
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suspendOnCheckRunHold = true;
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InstantiateScript();
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m_SourceCode = null;
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if(m_ObjCode == null)
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throw new ArgumentNullException("m_ObjCode");
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if(m_ObjCode.scriptEventHandlerTable == null)
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throw new ArgumentNullException("m_ObjCode.scriptEventHandlerTable");
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suspendOnCheckRunHold = false;
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suspendOnCheckRunTemp = false;
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// Declare which events the script's current state can handle.
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int eventMask = GetStateEventFlags(stateCode);
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m_Part.SetScriptEvents(m_ItemID, eventMask);
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}
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private void InitScriptApi(Yengine engine, string api, IScriptApi scriptApi)
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{
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// Set up m_ApiManager_<APINAME> = instance pointer.
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engine.m_XMRInstanceApiCtxFieldInfos[api].SetValue(this, scriptApi);
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// Initialize the API instance.
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scriptApi.Initialize(m_Engine, m_Part, m_Item);
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this.InitApi(api, scriptApi);
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}
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/*
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* Get script object code loaded in memory and all ready to run,
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* ready to resume it from where the .state file says it was last
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*/
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private void InstantiateScript()
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{
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bool compiledIt = false;
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ScriptObjCode objCode;
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// If source code string is empty, use the asset ID as the object file name.
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// Allow lines of // comments at the beginning (for such as engine selection).
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int i, j, len;
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if(m_SourceCode == null)
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m_SourceCode = String.Empty;
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for(len = m_SourceCode.Length; len > 0; --len)
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{
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if(m_SourceCode[len - 1] > ' ')
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break;
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}
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for(i = 0; i < len; i++)
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{
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char c = m_SourceCode[i];
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if(c <= ' ')
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continue;
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if(c != '/')
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break;
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if((i + 1 >= len) || (m_SourceCode[i + 1] != '/'))
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break;
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i = m_SourceCode.IndexOf('\n', i);
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if(i < 0)
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i = len - 1;
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}
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if((i >= len) || !m_Engine.m_UseSourceHashCode)
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{
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// Source consists of nothing but // comments and whitespace,
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// or we are being forced to use the asset-id as the key, to
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// open an already existing object code file.
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m_ScriptObjCodeKey = m_Item.AssetID.ToString();
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if(i >= len)
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m_SourceCode = "";
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}
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else
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{
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// Make up dictionary key for the object code.
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// Use the same object code for identical source code
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// regardless of asset ID, so we don't care if they
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// copy scripts or not.
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byte[] scbytes = System.Text.Encoding.UTF8.GetBytes(m_SourceCode);
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StringBuilder sb = new StringBuilder((256 + 5) / 6);
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ByteArrayToSixbitStr(sb, System.Security.Cryptography.SHA256.Create().ComputeHash(scbytes));
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m_ScriptObjCodeKey = sb.ToString();
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// But source code can be just a sixbit string itself
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// that identifies an already existing object code file.
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if(len - i == m_ScriptObjCodeKey.Length)
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{
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for(j = len; --j >= i;)
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{
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if(sixbit.IndexOf(m_SourceCode[j]) < 0)
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break;
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}
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if(j < i)
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{
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m_ScriptObjCodeKey = m_SourceCode.Substring(i, len - i);
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m_SourceCode = "";
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}
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}
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}
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// There may already be an ScriptObjCode struct in memory that
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// we can use. If not, try to compile it.
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lock(m_CompileLock)
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{
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if(!m_CompiledScriptObjCode.TryGetValue(m_ScriptObjCodeKey, out objCode) || m_ForceRecomp)
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{
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objCode = TryToCompile();
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compiledIt = true;
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}
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// Loaded successfully, increment reference count.
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// If we just compiled it though, reset count to 0 first as
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// this is the one-and-only existance of this objCode struct,
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// and we want any old ones for this source code to be garbage
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// collected.
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if(compiledIt)
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{
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m_CompiledScriptObjCode[m_ScriptObjCodeKey] = objCode;
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objCode.refCount = 0;
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}
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objCode.refCount++;
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// Now set up to decrement ref count on dispose.
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m_ObjCode = objCode;
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}
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try
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{
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// Fill in script instance from object code
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// Script instance is put in a "never-ever-has-run-before" state.
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LoadObjCode();
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// Fill in script intial state
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// - either as loaded from a .state file
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// - or initial default state_entry() event
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LoadInitialState();
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}
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catch
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{
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// If any error loading, decrement object code reference count.
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DecObjCodeRefCount();
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throw;
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}
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}
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private const string sixbit = "0123456789_abcdefghijklmnopqrstuvwxyz@ABCDEFGHIJKLMNOPQRSTUVWXYZ";
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private static void ByteArrayToSixbitStr(StringBuilder sb, byte[] bytes)
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{
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int bit = 0;
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int val = 0;
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foreach(byte b in bytes)
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{
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val |= (int)((uint)b << bit);
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bit += 8;
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while(bit >= 6)
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{
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sb.Append(sixbit[val & 63]);
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val >>= 6;
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bit -= 6;
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}
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}
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if(bit > 0)
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sb.Append(sixbit[val & 63]);
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}
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// Try to create object code from source code
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// If error, just throw exception
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private ScriptObjCode TryToCompile()
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{
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m_CompilerErrors.Clear();
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// If object file exists, create ScriptObjCode directly from that.
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// Otherwise, compile the source to create object file then create
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// ScriptObjCode from that.
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string assetID = m_Item.AssetID.ToString();
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m_CameFrom = "asset://" + assetID;
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ScriptObjCode objCode = Compile();
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if(m_CompilerErrors.Count != 0)
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throw new Exception("compilation errors");
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if(objCode == null)
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throw new Exception("compilation failed");
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return objCode;
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}
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/*
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* Retrieve source from asset server.
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*/
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private string FetchSource(string cameFrom)
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{
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m_log.Debug("[YEngine]: fetching source " + cameFrom);
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if(!cameFrom.StartsWith("asset://"))
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throw new Exception("unable to retrieve source from " + cameFrom);
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string assetID = cameFrom.Substring(8);
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AssetBase asset = m_Engine.World.AssetService.Get(assetID);
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if(asset == null)
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throw new Exception("source not found " + cameFrom);
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string source = Encoding.UTF8.GetString(asset.Data);
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if(EmptySource(source))
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throw new Exception("fetched source empty " + cameFrom);
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return source;
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}
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/*
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* Fill in script object initial contents.
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* Set the initial state to "default".
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*/
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private void LoadObjCode()
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{
|
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// Script must leave this much stack remaining on calls to CheckRun().
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this.stackLimit = m_StackSize / 2;
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// This is how many total heap bytes script is allowed to use.
|
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this.heapLimit = m_HeapSize;
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// Allocate global variable arrays.
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this.glblVars.AllocVarArrays(m_ObjCode.glblSizes);
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// Script can handle these event codes.
|
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m_HaveEventHandlers = new bool[m_ObjCode.scriptEventHandlerTable.GetLength(1)];
|
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for(int i = m_ObjCode.scriptEventHandlerTable.GetLength(0); --i >= 0;)
|
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{
|
||||
for(int j = m_ObjCode.scriptEventHandlerTable.GetLength(1); --j >= 0;)
|
||||
{
|
||||
if(m_ObjCode.scriptEventHandlerTable[i, j] != null)
|
||||
{
|
||||
m_HaveEventHandlers[j] = true;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
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* LoadInitialState()
|
||||
* if no state XML file exists for the asset,
|
||||
* post initial default state events
|
||||
* else
|
||||
* try to restore from .state file
|
||||
* If any error, throw exception
|
||||
*/
|
||||
private void LoadInitialState()
|
||||
{
|
||||
// If no .state file exists, start from default state
|
||||
// Otherwise, read initial state from the .state file
|
||||
|
||||
if(!File.Exists(m_StateFileName))
|
||||
{
|
||||
m_Running = true; // event processing is enabled
|
||||
eventCode = ScriptEventCode.None; // not processing any event
|
||||
|
||||
// default state_entry() must initialize global variables
|
||||
doGblInit = true;
|
||||
stateCode = 0;
|
||||
|
||||
PostEvent(new EventParams("state_entry",
|
||||
zeroObjectArray,
|
||||
zeroDetectParams));
|
||||
}
|
||||
else
|
||||
{
|
||||
FileStream fs = File.Open(m_StateFileName,
|
||||
FileMode.Open,
|
||||
FileAccess.Read);
|
||||
StreamReader ss = new StreamReader(fs);
|
||||
string xml = ss.ReadToEnd();
|
||||
ss.Close();
|
||||
fs.Close();
|
||||
|
||||
XmlDocument doc = new XmlDocument();
|
||||
doc.LoadXml(xml);
|
||||
LoadScriptState(doc);
|
||||
}
|
||||
|
||||
/*
|
||||
* Post event(s) saying what caused the script to start.
|
||||
*/
|
||||
if(m_PostOnRez)
|
||||
{
|
||||
PostEvent(new EventParams("on_rez",
|
||||
new Object[] { m_StartParam },
|
||||
zeroDetectParams));
|
||||
}
|
||||
|
||||
switch(m_StateSource)
|
||||
{
|
||||
case StateSource.AttachedRez:
|
||||
// PostEvent(new EventParams("attach",
|
||||
// new object[] { m_Part.ParentGroup.AttachedAvatar.ToString() },
|
||||
// zeroDetectParams));
|
||||
break;
|
||||
|
||||
case StateSource.PrimCrossing:
|
||||
PostEvent(new EventParams("changed",
|
||||
sbcCR,
|
||||
zeroDetectParams));
|
||||
break;
|
||||
|
||||
|
||||
case StateSource.Teleporting:
|
||||
PostEvent(new EventParams("changed",
|
||||
sbcCR,
|
||||
zeroDetectParams));
|
||||
PostEvent(new EventParams("changed",
|
||||
sbcCT,
|
||||
zeroDetectParams));
|
||||
break;
|
||||
|
||||
case StateSource.RegionStart:
|
||||
PostEvent(new EventParams("changed",
|
||||
sbcCRS,
|
||||
zeroDetectParams));
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
private static Object[] sbcCRS = new Object[] { ScriptBaseClass.CHANGED_REGION_START };
|
||||
private static Object[] sbcCR = new Object[] { ScriptBaseClass.CHANGED_REGION };
|
||||
private static Object[] sbcCT = new Object[] { ScriptBaseClass.CHANGED_TELEPORT };
|
||||
|
||||
/**
|
||||
* @brief Save compilation error messages for later retrieval
|
||||
* via GetScriptErrors().
|
||||
*/
|
||||
private void ErrorHandler(Token token, string message)
|
||||
{
|
||||
if(token != null)
|
||||
{
|
||||
string srcloc = token.SrcLoc;
|
||||
if(srcloc.StartsWith(m_CameFrom))
|
||||
srcloc = srcloc.Substring(m_CameFrom.Length);
|
||||
|
||||
m_CompilerErrors.Add(srcloc + " Error: " + message);
|
||||
}
|
||||
else if(message != null)
|
||||
m_CompilerErrors.Add("(0,0) Error: " + message);
|
||||
else
|
||||
m_CompilerErrors.Add("(0,0) Error compiling, see exception in log");
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Load script state from the given XML doc into the script memory
|
||||
* <ScriptState Engine="YEngine" Asset=...>
|
||||
* <Running>...</Running>
|
||||
* <DoGblInit>...</DoGblInit>
|
||||
* <Permissions granted=... mask=... />
|
||||
* RestoreDetectParams()
|
||||
* <Plugins>
|
||||
* ExtractXMLObjectArray("plugin")
|
||||
* </Plugins>
|
||||
* <Snapshot>
|
||||
* MigrateInEventHandler()
|
||||
* </Snapshot>
|
||||
* </ScriptState>
|
||||
*/
|
||||
private void LoadScriptState(XmlDocument doc)
|
||||
{
|
||||
DetectParams[] detParams;
|
||||
LinkedList<EventParams> eventQueue;
|
||||
|
||||
// Everything we know is enclosed in <ScriptState>...</ScriptState>
|
||||
XmlElement scriptStateN = (XmlElement)doc.SelectSingleNode("ScriptState");
|
||||
if(scriptStateN == null)
|
||||
throw new Exception("no <ScriptState> tag");
|
||||
|
||||
string sen = scriptStateN.GetAttribute("Engine");
|
||||
if((sen == null) || (sen != m_Engine.ScriptEngineName))
|
||||
throw new Exception("<ScriptState> missing Engine=\"YEngine\" attribute");
|
||||
|
||||
// AssetID is unique for the script source text so make sure the
|
||||
// state file was written for that source file
|
||||
string assetID = scriptStateN.GetAttribute("Asset");
|
||||
if(assetID != m_Item.AssetID.ToString())
|
||||
throw new Exception("<ScriptState> assetID mismatch");
|
||||
|
||||
// Also match the sourceHash in case script was
|
||||
// loaded via 'xmroption fetchsource' and has changed
|
||||
string sourceHash = scriptStateN.GetAttribute("SourceHash");
|
||||
if((sourceHash == null) || (sourceHash != m_ObjCode.sourceHash))
|
||||
throw new Exception("<ScriptState> SourceHash mismatch");
|
||||
|
||||
// Get various attributes
|
||||
XmlElement runningN = (XmlElement)scriptStateN.SelectSingleNode("Running");
|
||||
m_Running = bool.Parse(runningN.InnerText);
|
||||
|
||||
XmlElement doGblInitN = (XmlElement)scriptStateN.SelectSingleNode("DoGblInit");
|
||||
doGblInit = bool.Parse(doGblInitN.InnerText);
|
||||
|
||||
XmlElement permissionsN = (XmlElement)scriptStateN.SelectSingleNode("Permissions");
|
||||
m_Item.PermsGranter = new UUID(permissionsN.GetAttribute("granter"));
|
||||
m_Item.PermsMask = Convert.ToInt32(permissionsN.GetAttribute("mask"));
|
||||
m_Part.Inventory.UpdateInventoryItem(m_Item, false, false);
|
||||
|
||||
// get values used by stuff like llDetectedGrab, etc.
|
||||
detParams = RestoreDetectParams(scriptStateN.SelectSingleNode("DetectArray"));
|
||||
|
||||
// Restore queued events
|
||||
eventQueue = RestoreEventQueue(scriptStateN.SelectSingleNode("EventQueue"));
|
||||
|
||||
// Restore timers and listeners
|
||||
XmlElement pluginN = (XmlElement)scriptStateN.SelectSingleNode("Plugins");
|
||||
Object[] pluginData = ExtractXMLObjectArray(pluginN, "plugin");
|
||||
|
||||
// Script's global variables and stack contents
|
||||
XmlElement snapshotN =
|
||||
(XmlElement)scriptStateN.SelectSingleNode("Snapshot");
|
||||
|
||||
Byte[] data = Convert.FromBase64String(snapshotN.InnerText);
|
||||
MemoryStream ms = new MemoryStream();
|
||||
ms.Write(data, 0, data.Length);
|
||||
ms.Seek(0, SeekOrigin.Begin);
|
||||
MigrateInEventHandler(ms);
|
||||
ms.Close();
|
||||
|
||||
// Restore event queues, preserving any events that queued
|
||||
// whilst we were restoring the state
|
||||
lock(m_QueueLock)
|
||||
{
|
||||
m_DetectParams = detParams;
|
||||
foreach(EventParams evt in m_EventQueue)
|
||||
eventQueue.AddLast(evt);
|
||||
|
||||
m_EventQueue = eventQueue;
|
||||
for(int i = m_EventCounts.Length; --i >= 0;)
|
||||
m_EventCounts[i] = 0;
|
||||
foreach(EventParams evt in m_EventQueue)
|
||||
{
|
||||
ScriptEventCode eventCode = (ScriptEventCode)Enum.Parse(typeof(ScriptEventCode),
|
||||
evt.EventName);
|
||||
m_EventCounts[(int)eventCode]++;
|
||||
}
|
||||
}
|
||||
|
||||
// Requeue timer and listeners (possibly queuing new events)
|
||||
AsyncCommandManager.CreateFromData(m_Engine,
|
||||
m_LocalID, m_ItemID, m_Part.UUID,
|
||||
pluginData);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Read llDetectedGrab, etc, values from XML
|
||||
* <EventQueue>
|
||||
* <DetectParams>...</DetectParams>
|
||||
* .
|
||||
* .
|
||||
* .
|
||||
* </EventQueue>
|
||||
*/
|
||||
private LinkedList<EventParams> RestoreEventQueue(XmlNode eventsN)
|
||||
{
|
||||
LinkedList<EventParams> eventQueue = new LinkedList<EventParams>();
|
||||
if(eventsN != null)
|
||||
{
|
||||
XmlNodeList eventL = eventsN.SelectNodes("Event");
|
||||
foreach(XmlNode evnt in eventL)
|
||||
{
|
||||
string name = ((XmlElement)evnt).GetAttribute("Name");
|
||||
object[] parms = ExtractXMLObjectArray(evnt, "param");
|
||||
DetectParams[] detects = RestoreDetectParams(evnt);
|
||||
|
||||
if(parms == null)
|
||||
parms = zeroObjectArray;
|
||||
if(detects == null)
|
||||
detects = zeroDetectParams;
|
||||
|
||||
EventParams evt = new EventParams(name, parms, detects);
|
||||
eventQueue.AddLast(evt);
|
||||
}
|
||||
}
|
||||
return eventQueue;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Read llDetectedGrab, etc, values from XML
|
||||
* <DetectArray>
|
||||
* <DetectParams>...</DetectParams>
|
||||
* .
|
||||
* .
|
||||
* .
|
||||
* </DetectArray>
|
||||
*/
|
||||
private DetectParams[] RestoreDetectParams(XmlNode detectedN)
|
||||
{
|
||||
if(detectedN == null)
|
||||
return null;
|
||||
|
||||
List<DetectParams> detected = new List<DetectParams>();
|
||||
XmlNodeList detectL = detectedN.SelectNodes("DetectParams");
|
||||
|
||||
DetectParams detprm = new DetectParams();
|
||||
foreach(XmlNode detxml in detectL)
|
||||
{
|
||||
try
|
||||
{
|
||||
detprm.Group = new UUID(detxml.Attributes.GetNamedItem("group").Value);
|
||||
detprm.Key = new UUID(detxml.Attributes.GetNamedItem("key").Value);
|
||||
detprm.Owner = new UUID(detxml.Attributes.GetNamedItem("owner").Value);
|
||||
|
||||
detprm.LinkNum = Int32.Parse(detxml.Attributes.GetNamedItem("linkNum").Value);
|
||||
detprm.Type = Int32.Parse(detxml.Attributes.GetNamedItem("type").Value);
|
||||
|
||||
detprm.Name = detxml.Attributes.GetNamedItem("name").Value;
|
||||
|
||||
detprm.OffsetPos = new LSL_Types.Vector3(detxml.Attributes.GetNamedItem("pos").Value);
|
||||
detprm.Position = new LSL_Types.Vector3(detxml.Attributes.GetNamedItem("position").Value);
|
||||
detprm.Velocity = new LSL_Types.Vector3(detxml.Attributes.GetNamedItem("velocity").Value);
|
||||
|
||||
detprm.Rotation = new LSL_Types.Quaternion(detxml.Attributes.GetNamedItem("rotation").Value);
|
||||
|
||||
detected.Add(detprm);
|
||||
detprm = new DetectParams();
|
||||
}
|
||||
catch(Exception e)
|
||||
{
|
||||
m_log.Warn("[YEngine]: RestoreDetectParams bad XML: " + detxml.ToString());
|
||||
m_log.Warn("[YEngine]: ... " + e.ToString());
|
||||
}
|
||||
}
|
||||
|
||||
return detected.ToArray();
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Extract elements of an array of objects from an XML parent.
|
||||
* Each element is of form <tag ...>...</tag>
|
||||
* @param parent = XML parent to extract them from
|
||||
* @param tag = what the value's tag is
|
||||
* @returns object array of the values
|
||||
*/
|
||||
private static object[] ExtractXMLObjectArray(XmlNode parent, string tag)
|
||||
{
|
||||
List<Object> olist = new List<Object>();
|
||||
|
||||
XmlNodeList itemL = parent.SelectNodes(tag);
|
||||
foreach(XmlNode item in itemL)
|
||||
{
|
||||
olist.Add(ExtractXMLObjectValue(item));
|
||||
}
|
||||
|
||||
return olist.ToArray();
|
||||
}
|
||||
|
||||
private static object ExtractXMLObjectValue(XmlNode item)
|
||||
{
|
||||
string itemType = item.Attributes.GetNamedItem("type").Value;
|
||||
|
||||
if(itemType == "list")
|
||||
{
|
||||
return new LSL_List(ExtractXMLObjectArray(item, "item"));
|
||||
}
|
||||
|
||||
if(itemType == "OpenMetaverse.UUID")
|
||||
{
|
||||
UUID val = new UUID();
|
||||
UUID.TryParse(item.InnerText, out val);
|
||||
return val;
|
||||
}
|
||||
|
||||
Type itemT = Type.GetType(itemType);
|
||||
if(itemT == null)
|
||||
{
|
||||
Object[] args = new Object[] { item.InnerText };
|
||||
|
||||
string assembly = itemType + ", OpenSim.Region.ScriptEngine.Shared";
|
||||
itemT = Type.GetType(assembly);
|
||||
if(itemT == null)
|
||||
{
|
||||
return null;
|
||||
}
|
||||
return Activator.CreateInstance(itemT, args);
|
||||
}
|
||||
|
||||
return Convert.ChangeType(item.InnerText, itemT);
|
||||
}
|
||||
|
||||
/*
|
||||
* Migrate an event handler in from a stream.
|
||||
*
|
||||
* Input:
|
||||
* stream = as generated by MigrateOutEventHandler()
|
||||
*/
|
||||
private void MigrateInEventHandler(Stream stream)
|
||||
{
|
||||
int mv = stream.ReadByte();
|
||||
if(mv != migrationVersion)
|
||||
throw new Exception("incoming migration version " + mv + " but accept only " + migrationVersion);
|
||||
|
||||
stream.ReadByte(); // ignored
|
||||
|
||||
/*
|
||||
* Restore script variables and stack and other state from stream.
|
||||
* And it also marks us busy (by setting this.eventCode) so we can't be
|
||||
* started again and this event lost. If it restores this.eventCode =
|
||||
* None, the the script was idle.
|
||||
*/
|
||||
lock(m_RunLock)
|
||||
{
|
||||
BinaryReader br = new BinaryReader(stream);
|
||||
this.MigrateIn(br);
|
||||
|
||||
m_RunOnePhase = "MigrateInEventHandler finished";
|
||||
CheckRunLockInvariants(true);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user