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

1 files changed, 309 insertions, 0 deletions

diff --git a/OpenSim/Region/ScriptEngine/YEngine/XMRInstCapture.cs b/OpenSim/Region/ScriptEngine/YEngine/XMRInstCapture.cs
new file mode 100644
index 0000000..e90d83b
--- /dev/null
+++ b/OpenSim/Region/ScriptEngine/YEngine/XMRInstCapture.cs
@@ -0,0 +1,309 @@
+/*
+ * 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 OpenSimulator 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.IO;
+using System.Xml;
+using OpenSim.Region.ScriptEngine.Shared;
+using OpenSim.Region.ScriptEngine.Shared.Api;
+using log4net;
+
+using LSL_Float = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLFloat;
+using LSL_Integer = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLInteger;
+using LSL_Key = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLString;
+using LSL_List = OpenSim.Region.ScriptEngine.Shared.LSL_Types.list;
+using LSL_Rotation = OpenSim.Region.ScriptEngine.Shared.LSL_Types.Quaternion;
+using LSL_String = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLString;
+using LSL_Vector = OpenSim.Region.ScriptEngine.Shared.LSL_Types.Vector3;
+
+namespace OpenSim.Region.ScriptEngine.Yengine
+{
+    public partial class XMRInstance
+    {
+        /********************************************************************************\
+         *  The only method of interest to outside this module is GetExecutionState()   *
+         *  which captures the current state of the script into an XML document.        *
+         *                                                                              *
+         *  The rest of this module contains support routines for GetExecutionState().  *
+        \********************************************************************************/
+
+        /**
+         * @brief Create an XML element that gives the current state of the script.
+         *   <ScriptState Engine="YEngine" SourceHash=m_ObjCode.sourceHash Asset=m_Item.AssetID>
+         *     <Snapshot>globalsandstackdump</Snapshot>
+         *     <Running>m_Running</Running>
+         *     <DetectArray ...
+         *     <EventQueue ...
+         *     <Permissions ...
+         *     <Plugins />
+         *   </ScriptState>
+         * Updates the .state file while we're at it.
+         */
+        public XmlElement GetExecutionState(XmlDocument doc)
+        {
+            // When we're detaching an attachment, we need to wait here.
+
+            // Change this to a 5 second timeout. If things do mess up,
+            // we don't want to be stuck forever.
+            //
+            m_DetachReady.WaitOne(5000, false);
+
+            XmlElement scriptStateN = doc.CreateElement("", "ScriptState", "");
+            scriptStateN.SetAttribute("Engine", m_Engine.ScriptEngineName);
+            scriptStateN.SetAttribute("Asset", m_Item.AssetID.ToString());
+            scriptStateN.SetAttribute("SourceHash", m_ObjCode.sourceHash);
+
+            // Make sure we aren't executing part of the script so it stays 
+            // stable.  Setting suspendOnCheckRun tells CheckRun() to suspend
+            // and return out so RunOne() will release the lock asap.
+            suspendOnCheckRunHold = true;
+            lock(m_RunLock)
+            {
+                m_RunOnePhase = "GetExecutionState enter";
+                CheckRunLockInvariants(true);
+
+                // Get copy of script globals and stack in relocateable form.
+                MemoryStream snapshotStream = new MemoryStream();
+                MigrateOutEventHandler(snapshotStream);
+                Byte[] snapshotBytes = snapshotStream.ToArray();
+                snapshotStream.Close();
+                string snapshotString = Convert.ToBase64String(snapshotBytes);
+                XmlElement snapshotN = doc.CreateElement("", "Snapshot", "");
+                snapshotN.AppendChild(doc.CreateTextNode(snapshotString));
+                scriptStateN.AppendChild(snapshotN);
+                m_RunOnePhase = "GetExecutionState B";
+                CheckRunLockInvariants(true);
+
+                // "Running" says whether or not we are accepting new events.
+                XmlElement runningN = doc.CreateElement("", "Running", "");
+                runningN.AppendChild(doc.CreateTextNode(m_Running.ToString()));
+                scriptStateN.AppendChild(runningN);
+                m_RunOnePhase = "GetExecutionState C";
+                CheckRunLockInvariants(true);
+
+                // "DoGblInit" says whether or not default:state_entry() will init global vars.
+                XmlElement doGblInitN = doc.CreateElement("", "DoGblInit", "");
+                doGblInitN.AppendChild(doc.CreateTextNode(doGblInit.ToString()));
+                scriptStateN.AppendChild(doGblInitN);
+                m_RunOnePhase = "GetExecutionState D";
+                CheckRunLockInvariants(true);
+
+                // More misc data.
+                XmlNode permissionsN = doc.CreateElement("", "Permissions", "");
+                scriptStateN.AppendChild(permissionsN);
+
+                XmlAttribute granterA = doc.CreateAttribute("", "granter", "");
+                granterA.Value = m_Item.PermsGranter.ToString();
+                permissionsN.Attributes.Append(granterA);
+
+                XmlAttribute maskA = doc.CreateAttribute("", "mask", "");
+                maskA.Value = m_Item.PermsMask.ToString();
+                permissionsN.Attributes.Append(maskA);
+                m_RunOnePhase = "GetExecutionState E";
+                CheckRunLockInvariants(true);
+
+                // "DetectParams" are returned by llDetected...() script functions
+                // for the currently active event, if any.
+                if(m_DetectParams != null)
+                {
+                    XmlElement detParArrayN = doc.CreateElement("", "DetectArray", "");
+                    AppendXMLDetectArray(doc, detParArrayN, m_DetectParams);
+                    scriptStateN.AppendChild(detParArrayN);
+                }
+                m_RunOnePhase = "GetExecutionState F";
+                CheckRunLockInvariants(true);
+
+                // Save any events we have in the queue.
+                // <EventQueue>
+                //   <Event Name="...">
+                //     <param>...</param> ...
+                //     <DetectParams>...</DetectParams> ...
+                //   </Event>
+                //   ...
+                // </EventQueue>
+                XmlElement queuedEventsN = doc.CreateElement("", "EventQueue", "");
+                lock(m_QueueLock)
+                {
+                    foreach(EventParams evt in m_EventQueue)
+                    {
+                        XmlElement singleEventN = doc.CreateElement("", "Event", "");
+                        singleEventN.SetAttribute("Name", evt.EventName);
+                        AppendXMLObjectArray(doc, singleEventN, evt.Params, "param");
+                        AppendXMLDetectArray(doc, singleEventN, evt.DetectParams);
+                        queuedEventsN.AppendChild(singleEventN);
+                    }
+                }
+                scriptStateN.AppendChild(queuedEventsN);
+                m_RunOnePhase = "GetExecutionState G";
+                CheckRunLockInvariants(true);
+
+                // "Plugins" indicate enabled timers and listens, etc.
+                Object[] pluginData =
+                        AsyncCommandManager.GetSerializationData(m_Engine, m_ItemID);
+
+                XmlNode plugins = doc.CreateElement("", "Plugins", "");
+                AppendXMLObjectArray(doc, plugins, pluginData, "plugin");
+                scriptStateN.AppendChild(plugins);
+                m_RunOnePhase = "GetExecutionState H";
+                CheckRunLockInvariants(true);
+
+                // Let script run again.
+                suspendOnCheckRunHold = false;
+
+                m_RunOnePhase = "GetExecutionState leave";
+                CheckRunLockInvariants(true);
+            }
+
+            // scriptStateN represents the contents of the .state file so
+            // write the .state file while we are here.
+            FileStream fs = File.Create(m_StateFileName);
+            StreamWriter sw = new StreamWriter(fs);
+            sw.Write(scriptStateN.OuterXml);
+            sw.Close();
+            fs.Close();
+
+            return scriptStateN;
+        }
+
+        /**
+         * @brief Write script state to output stream.
+         * Input:
+         *  stream = stream to write event handler state information to
+         */
+        private void MigrateOutEventHandler(Stream stream)
+        {
+            // Write script state out, frames and all, to the stream.
+            // Does not change script state.
+            stream.WriteByte(migrationVersion);
+            stream.WriteByte((byte)16);
+            this.MigrateOut(new BinaryWriter(stream));
+        }
+
+        /**
+         * @brief Convert an DetectParams[] to corresponding XML.
+         *        DetectParams[] holds the values retrievable by llDetected...() for
+         *        a given event.
+         */
+        private static void AppendXMLDetectArray(XmlDocument doc, XmlElement parent, DetectParams[] detect)
+        {
+            foreach(DetectParams d in detect)
+            {
+                XmlElement detectParamsN = GetXMLDetect(doc, d);
+                parent.AppendChild(detectParamsN);
+            }
+        }
+
+        private static XmlElement GetXMLDetect(XmlDocument doc, DetectParams d)
+        {
+            XmlElement detectParamsN = doc.CreateElement("", "DetectParams", "");
+
+            XmlAttribute d_key = doc.CreateAttribute("", "key", "");
+            d_key.Value = d.Key.ToString();
+            detectParamsN.Attributes.Append(d_key);
+
+            XmlAttribute pos = doc.CreateAttribute("", "pos", "");
+            pos.Value = d.OffsetPos.ToString();
+            detectParamsN.Attributes.Append(pos);
+
+            XmlAttribute d_linkNum = doc.CreateAttribute("", "linkNum", "");
+            d_linkNum.Value = d.LinkNum.ToString();
+            detectParamsN.Attributes.Append(d_linkNum);
+
+            XmlAttribute d_group = doc.CreateAttribute("", "group", "");
+            d_group.Value = d.Group.ToString();
+            detectParamsN.Attributes.Append(d_group);
+
+            XmlAttribute d_name = doc.CreateAttribute("", "name", "");
+            d_name.Value = d.Name.ToString();
+            detectParamsN.Attributes.Append(d_name);
+
+            XmlAttribute d_owner = doc.CreateAttribute("", "owner", "");
+            d_owner.Value = d.Owner.ToString();
+            detectParamsN.Attributes.Append(d_owner);
+
+            XmlAttribute d_position = doc.CreateAttribute("", "position", "");
+            d_position.Value = d.Position.ToString();
+            detectParamsN.Attributes.Append(d_position);
+
+            XmlAttribute d_rotation = doc.CreateAttribute("", "rotation", "");
+            d_rotation.Value = d.Rotation.ToString();
+            detectParamsN.Attributes.Append(d_rotation);
+
+            XmlAttribute d_type = doc.CreateAttribute("", "type", "");
+            d_type.Value = d.Type.ToString();
+            detectParamsN.Attributes.Append(d_type);
+
+            XmlAttribute d_velocity = doc.CreateAttribute("", "velocity", "");
+            d_velocity.Value = d.Velocity.ToString();
+            detectParamsN.Attributes.Append(d_velocity);
+
+            return detectParamsN;
+        }
+
+        /**
+         * @brief Append elements of an array of objects to an XML parent.
+         * @param doc = document the parent is part of
+         * @param parent = parent to append the items to
+         * @param array = array of objects
+         * @param tag = <tag ..>...</tag> for each element
+         */
+        private static void AppendXMLObjectArray(XmlDocument doc, XmlNode parent, object[] array, string tag)
+        {
+            foreach(object o in array)
+            {
+                XmlElement element = GetXMLObject(doc, o, tag);
+                parent.AppendChild(element);
+            }
+        }
+
+        /**
+         * @brief Get and XML representation of an object.
+         * @param doc = document the tag will be put in
+         * @param o = object to be represented
+         * @param tag = <tag ...>...</tag>
+         */
+        private static XmlElement GetXMLObject(XmlDocument doc, object o, string tag)
+        {
+            XmlAttribute typ = doc.CreateAttribute("", "type", "");
+            XmlElement n = doc.CreateElement("", tag, "");
+
+            if(o is LSL_List)
+            {
+                typ.Value = "list";
+                n.Attributes.Append(typ);
+                AppendXMLObjectArray(doc, n, ((LSL_List)o).Data, "item");
+            }
+            else
+            {
+                typ.Value = o.GetType().ToString();
+                n.Attributes.Append(typ);
+                n.AppendChild(doc.CreateTextNode(o.ToString()));
+            }
+            return n;
+        }
+    }
+}