opensim-development – Blame information for rev 1
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1 | eva | 1 | /* |
2 | * Copyright (c) Contributors, http://opensimulator.org/ |
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3 | * See CONTRIBUTORS.TXT for a full list of copyright holders. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions are met: |
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7 | * * Redistributions of source code must retain the above copyright |
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8 | * notice, this list of conditions and the following disclaimer. |
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9 | * * Redistributions in binary form must reproduce the above copyright |
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10 | * notice, this list of conditions and the following disclaimer in the |
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11 | * documentation and/or other materials provided with the distribution. |
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12 | * * Neither the name of the OpenSimulator Project nor the |
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13 | * names of its contributors may be used to endorse or promote products |
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14 | * derived from this software without specific prior written permission. |
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15 | * |
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16 | * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY |
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17 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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18 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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19 | * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY |
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20 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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21 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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22 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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23 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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25 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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26 | */ |
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27 | |||
28 | using System; |
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29 | using System.Collections; |
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30 | using System.Collections.Generic; |
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31 | using System.Globalization; |
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32 | using System.IO; |
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33 | using System.Reflection; |
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34 | using System.Runtime.Remoting; |
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35 | using System.Runtime.Remoting.Lifetime; |
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36 | using System.Security.Policy; |
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37 | using System.Text; |
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38 | using System.Threading; |
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39 | using System.Xml; |
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40 | using OpenMetaverse; |
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41 | using log4net; |
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42 | using Nini.Config; |
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43 | using Amib.Threading; |
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44 | using OpenSim.Framework; |
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45 | using OpenSim.Region.CoreModules; |
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46 | using OpenSim.Region.Framework.Scenes; |
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47 | using OpenSim.Region.Framework.Interfaces; |
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48 | using OpenSim.Region.ScriptEngine.Shared; |
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49 | using OpenSim.Region.ScriptEngine.Shared.Api; |
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50 | using OpenSim.Region.ScriptEngine.Shared.Api.Runtime; |
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51 | using OpenSim.Region.ScriptEngine.Shared.ScriptBase; |
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52 | using OpenSim.Region.ScriptEngine.Shared.CodeTools; |
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53 | using OpenSim.Region.ScriptEngine.Interfaces; |
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54 | |||
55 | namespace OpenSim.Region.ScriptEngine.Shared.Instance |
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56 | { |
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57 | public class ScriptInstance : MarshalByRefObject, IScriptInstance |
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58 | { |
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59 | private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); |
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60 | |||
61 | /// <summary> |
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62 | /// The current work item if an event for this script is running or waiting to run, |
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63 | /// </summary> |
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64 | /// <remarks> |
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65 | /// Null if there is no running or waiting to run event. Must be changed only under an EventQueue lock. |
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66 | /// </remarks> |
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67 | private IScriptWorkItem m_CurrentWorkItem; |
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68 | |||
69 | private IScript m_Script; |
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70 | private DetectParams[] m_DetectParams; |
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71 | private bool m_TimerQueued; |
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72 | private DateTime m_EventStart; |
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73 | private bool m_InEvent; |
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74 | private string m_Assembly; |
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75 | private string m_CurrentEvent = String.Empty; |
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76 | private bool m_InSelfDelete; |
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77 | private int m_MaxScriptQueue; |
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78 | private bool m_SaveState = true; |
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79 | private int m_ControlEventsInQueue; |
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80 | private int m_LastControlLevel; |
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81 | private bool m_CollisionInQueue; |
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82 | |||
83 | // The following is for setting a minimum delay between events |
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84 | private double m_minEventDelay; |
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85 | |||
86 | private long m_eventDelayTicks; |
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87 | private long m_nextEventTimeTicks; |
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88 | private bool m_startOnInit = true; |
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89 | private UUID m_AttachedAvatar; |
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90 | private StateSource m_stateSource; |
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91 | private bool m_postOnRez; |
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92 | private bool m_startedFromSavedState; |
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93 | private UUID m_CurrentStateHash; |
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94 | private UUID m_RegionID; |
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95 | |||
96 | public int DebugLevel { get; set; } |
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97 | |||
98 | public Dictionary<KeyValuePair<int, int>, KeyValuePair<int, int>> LineMap { get; set; } |
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99 | |||
100 | private Dictionary<string,IScriptApi> m_Apis = new Dictionary<string,IScriptApi>(); |
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101 | |||
102 | public Object[] PluginData = new Object[0]; |
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103 | |||
104 | /// <summary> |
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105 | /// Used by llMinEventDelay to suppress events happening any faster than this speed. |
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106 | /// This currently restricts all events in one go. Not sure if each event type has |
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107 | /// its own check so take the simple route first. |
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108 | /// </summary> |
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109 | public double MinEventDelay |
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110 | { |
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111 | get { return m_minEventDelay; } |
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112 | set |
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113 | { |
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114 | if (value > 0.001) |
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115 | m_minEventDelay = value; |
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116 | else |
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117 | m_minEventDelay = 0.0; |
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118 | |||
119 | m_eventDelayTicks = (long)(m_minEventDelay * 10000000L); |
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120 | m_nextEventTimeTicks = DateTime.Now.Ticks; |
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121 | } |
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122 | } |
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123 | |||
124 | public bool Running { get; set; } |
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125 | |||
126 | public bool Suspended |
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127 | { |
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128 | get { return m_Suspended; } |
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129 | |||
130 | set |
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131 | { |
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132 | // Need to do this inside a lock in order to avoid races with EventProcessor() |
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133 | lock (m_Script) |
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134 | { |
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135 | bool wasSuspended = m_Suspended; |
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136 | m_Suspended = value; |
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137 | |||
138 | if (wasSuspended && !m_Suspended) |
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139 | { |
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140 | lock (EventQueue) |
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141 | { |
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142 | // Need to place ourselves back in a work item if there are events to process |
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143 | if (EventQueue.Count > 0 && Running && !ShuttingDown) |
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144 | m_CurrentWorkItem = Engine.QueueEventHandler(this); |
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145 | } |
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146 | } |
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147 | } |
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148 | } |
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149 | } |
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150 | private bool m_Suspended; |
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151 | |||
152 | public bool ShuttingDown { get; set; } |
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153 | |||
154 | public string State { get; set; } |
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155 | |||
156 | public IScriptEngine Engine { get; private set; } |
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157 | |||
158 | public UUID AppDomain { get; set; } |
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159 | |||
160 | public SceneObjectPart Part { get; private set; } |
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161 | |||
162 | public string PrimName { get; private set; } |
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163 | |||
164 | public string ScriptName { get; private set; } |
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165 | |||
166 | public UUID ItemID { get; private set; } |
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167 | |||
168 | public UUID ObjectID { get { return Part.UUID; } } |
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169 | |||
170 | public uint LocalID { get { return Part.LocalId; } } |
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171 | |||
172 | public UUID RootObjectID { get { return Part.ParentGroup.UUID; } } |
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173 | |||
174 | public uint RootLocalID { get { return Part.ParentGroup.LocalId; } } |
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175 | |||
176 | public UUID AssetID { get; private set; } |
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177 | |||
178 | public Queue EventQueue { get; private set; } |
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179 | |||
180 | public long EventsQueued |
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181 | { |
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182 | get |
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183 | { |
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184 | lock (EventQueue) |
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185 | return EventQueue.Count; |
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186 | } |
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187 | } |
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188 | |||
189 | public long EventsProcessed { get; private set; } |
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190 | |||
191 | public int StartParam { get; set; } |
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192 | |||
193 | public TaskInventoryItem ScriptTask { get; private set; } |
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194 | |||
195 | public DateTime TimeStarted { get; private set; } |
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196 | |||
197 | public long MeasurementPeriodTickStart { get; private set; } |
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198 | |||
199 | public long MeasurementPeriodExecutionTime { get; private set; } |
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200 | |||
201 | public static readonly long MaxMeasurementPeriod = 30 * TimeSpan.TicksPerMinute; |
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202 | |||
203 | private bool m_coopTermination; |
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204 | |||
205 | private EventWaitHandle m_coopSleepHandle; |
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206 | |||
207 | public void ClearQueue() |
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208 | { |
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209 | m_TimerQueued = false; |
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210 | EventQueue.Clear(); |
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211 | } |
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212 | |||
213 | public ScriptInstance( |
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214 | IScriptEngine engine, SceneObjectPart part, TaskInventoryItem item, |
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215 | int startParam, bool postOnRez, |
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216 | int maxScriptQueue) |
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217 | { |
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218 | State = "default"; |
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219 | EventQueue = new Queue(32); |
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220 | |||
221 | Engine = engine; |
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222 | Part = part; |
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223 | ScriptTask = item; |
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224 | |||
225 | // This is currently only here to allow regression tests to get away without specifying any inventory |
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226 | // item when they are testing script logic that doesn't require an item. |
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227 | if (ScriptTask != null) |
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228 | { |
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229 | ScriptName = ScriptTask.Name; |
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230 | ItemID = ScriptTask.ItemID; |
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231 | AssetID = ScriptTask.AssetID; |
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232 | } |
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233 | |||
234 | PrimName = part.ParentGroup.Name; |
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235 | StartParam = startParam; |
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236 | m_MaxScriptQueue = maxScriptQueue; |
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237 | m_postOnRez = postOnRez; |
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238 | m_AttachedAvatar = Part.ParentGroup.AttachedAvatar; |
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239 | m_RegionID = Part.ParentGroup.Scene.RegionInfo.RegionID; |
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240 | |||
241 | if (Engine.Config.GetString("ScriptStopStrategy", "abort") == "co-op") |
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242 | { |
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243 | m_coopTermination = true; |
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244 | m_coopSleepHandle = new XEngineEventWaitHandle(false, EventResetMode.AutoReset); |
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245 | } |
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246 | } |
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247 | |||
248 | /// <summary> |
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249 | /// Load the script from an assembly into an AppDomain. |
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250 | /// </summary> |
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251 | /// <param name='dom'></param> |
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252 | /// <param name='assembly'></param> |
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253 | /// <param name='stateSource'></param> |
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254 | /// <returns>false if load failed, true if suceeded</returns> |
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255 | public bool Load(AppDomain dom, string assembly, StateSource stateSource) |
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256 | { |
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257 | m_Assembly = assembly; |
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258 | m_stateSource = stateSource; |
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259 | |||
260 | ApiManager am = new ApiManager(); |
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261 | |||
262 | foreach (string api in am.GetApis()) |
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263 | { |
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264 | m_Apis[api] = am.CreateApi(api); |
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265 | m_Apis[api].Initialize(Engine, Part, ScriptTask, m_coopSleepHandle); |
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266 | } |
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267 | |||
268 | try |
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269 | { |
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270 | object[] constructorParams; |
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271 | |||
272 | Assembly scriptAssembly = dom.Load(Path.GetFileNameWithoutExtension(assembly)); |
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273 | Type scriptType = scriptAssembly.GetType("SecondLife.XEngineScript"); |
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274 | |||
275 | if (scriptType != null) |
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276 | { |
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277 | constructorParams = new object[] { m_coopSleepHandle }; |
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278 | } |
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279 | else if (!m_coopTermination) |
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280 | { |
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281 | scriptType = scriptAssembly.GetType("SecondLife.Script"); |
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282 | constructorParams = null; |
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283 | } |
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284 | else |
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285 | { |
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286 | m_log.ErrorFormat( |
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287 | "[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" |
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288 | + ", either by setting DeleteScriptsOnStartup = true in [XEngine] for one run" |
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289 | + " or by deleting these files manually.", |
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290 | ScriptTask.Name, ScriptTask.ItemID, Part.Name, Part.UUID, Part.ParentGroup.Name, Engine.World.Name, assembly); |
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291 | |||
292 | return false; |
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293 | } |
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294 | |||
295 | // m_log.DebugFormat( |
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296 | // "[SCRIPT INSTANCE]: Looking to load {0} from assembly {1} in {2}", |
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297 | // scriptType.FullName, Path.GetFileNameWithoutExtension(assembly), Engine.World.Name); |
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298 | |||
299 | if (dom != System.AppDomain.CurrentDomain) |
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300 | m_Script |
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301 | = (IScript)dom.CreateInstanceAndUnwrap( |
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302 | Path.GetFileNameWithoutExtension(assembly), |
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303 | scriptType.FullName, |
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304 | false, |
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305 | BindingFlags.Default, |
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306 | null, |
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307 | constructorParams, |
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308 | null, |
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309 | null, |
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310 | null); |
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311 | else |
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312 | m_Script |
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313 | = (IScript)scriptAssembly.CreateInstance( |
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314 | scriptType.FullName, |
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315 | false, |
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316 | BindingFlags.Default, |
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317 | null, |
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318 | constructorParams, |
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319 | null, |
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320 | null); |
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321 | |||
322 | //ILease lease = (ILease)RemotingServices.GetLifetimeService(m_Script as ScriptBaseClass); |
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323 | //RemotingServices.GetLifetimeService(m_Script as ScriptBaseClass); |
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324 | // lease.Register(this); |
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325 | } |
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326 | catch (Exception e) |
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327 | { |
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328 | m_log.ErrorFormat( |
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329 | "[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}", |
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330 | ScriptTask.Name, ScriptTask.ItemID, Part.Name, Part.UUID, Part.ParentGroup.Name, Engine.World.Name, assembly, e.Message, e.StackTrace); |
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331 | |||
332 | return false; |
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333 | } |
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334 | |||
335 | try |
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336 | { |
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337 | foreach (KeyValuePair<string,IScriptApi> kv in m_Apis) |
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338 | { |
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339 | m_Script.InitApi(kv.Key, kv.Value); |
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340 | } |
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341 | |||
342 | // // m_log.Debug("[Script] Script instance created"); |
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343 | |||
344 | Part.SetScriptEvents(ItemID, |
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345 | (int)m_Script.GetStateEventFlags(State)); |
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346 | } |
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347 | catch (Exception e) |
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348 | { |
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349 | m_log.ErrorFormat( |
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350 | "[SCRIPT INSTANCE]: Not starting script {0} (id {1}) in part {2} (id {3}) in object {4} in {5}. Error initializing script instance. Exception {6}{7}", |
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351 | ScriptTask.Name, ScriptTask.ItemID, Part.Name, Part.UUID, Part.ParentGroup.Name, Engine.World.Name, e.Message, e.StackTrace); |
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352 | |||
353 | return false; |
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354 | } |
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355 | |||
356 | m_SaveState = true; |
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357 | |||
358 | string savedState = Path.Combine(Path.GetDirectoryName(assembly), |
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359 | ItemID.ToString() + ".state"); |
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360 | if (File.Exists(savedState)) |
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361 | { |
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362 | string xml = String.Empty; |
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363 | |||
364 | try |
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365 | { |
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366 | FileInfo fi = new FileInfo(savedState); |
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367 | int size = (int)fi.Length; |
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368 | if (size < 512000) |
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369 | { |
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370 | using (FileStream fs = File.Open(savedState, |
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371 | FileMode.Open, FileAccess.Read, FileShare.None)) |
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372 | { |
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373 | Byte[] data = new Byte[size]; |
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374 | fs.Read(data, 0, size); |
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375 | |||
376 | xml = Encoding.UTF8.GetString(data); |
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377 | |||
378 | ScriptSerializer.Deserialize(xml, this); |
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379 | |||
380 | AsyncCommandManager.CreateFromData(Engine, |
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381 | LocalID, ItemID, ObjectID, |
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382 | PluginData); |
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383 | |||
384 | // m_log.DebugFormat("[Script] Successfully retrieved state for script {0}.{1}", PrimName, m_ScriptName); |
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385 | |||
386 | Part.SetScriptEvents(ItemID, |
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387 | (int)m_Script.GetStateEventFlags(State)); |
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388 | |||
389 | if (!Running) |
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390 | m_startOnInit = false; |
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391 | |||
392 | Running = false; |
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393 | |||
394 | // we get new rez events on sim restart, too |
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395 | // but if there is state, then we fire the change |
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396 | // event |
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397 | |||
398 | // We loaded state, don't force a re-save |
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399 | m_SaveState = false; |
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400 | m_startedFromSavedState = true; |
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401 | } |
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402 | } |
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403 | else |
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404 | { |
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405 | m_log.WarnFormat( |
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406 | "[SCRIPT INSTANCE]: Not starting script {0} (id {1}) in part {2} (id {3}) in object {4} in {5}. Unable to load script state file {6}. Memory limit exceeded.", |
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407 | ScriptTask.Name, ScriptTask.ItemID, Part.Name, Part.UUID, Part.ParentGroup.Name, Engine.World.Name, savedState); |
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408 | } |
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409 | } |
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410 | catch (Exception e) |
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411 | { |
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412 | m_log.ErrorFormat( |
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413 | "[SCRIPT INSTANCE]: Not starting script {0} (id {1}) in part {2} (id {3}) in object {4} in {5}. Unable to load script state file {6}. XML is {7}. Exception {8}{9}", |
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414 | ScriptTask.Name, ScriptTask.ItemID, Part.Name, Part.UUID, Part.ParentGroup.Name, Engine.World.Name, savedState, xml, e.Message, e.StackTrace); |
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415 | } |
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416 | } |
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417 | // else |
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418 | // { |
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419 | // ScenePresence presence = Engine.World.GetScenePresence(part.OwnerID); |
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420 | |||
421 | // if (presence != null && (!postOnRez)) |
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422 | // presence.ControllingClient.SendAgentAlertMessage("Compile successful", false); |
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423 | |||
424 | // } |
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425 | |||
426 | return true; |
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427 | } |
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428 | |||
429 | public void Init() |
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430 | { |
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431 | if (ShuttingDown) |
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432 | return; |
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433 | |||
434 | if (m_startedFromSavedState) |
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435 | { |
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436 | if (m_startOnInit) |
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437 | Start(); |
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438 | if (m_postOnRez) |
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439 | { |
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440 | PostEvent(new EventParams("on_rez", |
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441 | new Object[] {new LSL_Types.LSLInteger(StartParam)}, new DetectParams[0])); |
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442 | } |
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443 | |||
444 | if (m_stateSource == StateSource.AttachedRez) |
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445 | { |
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446 | PostEvent(new EventParams("attach", |
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447 | new object[] { new LSL_Types.LSLString(m_AttachedAvatar.ToString()) }, new DetectParams[0])); |
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448 | } |
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449 | else if (m_stateSource == StateSource.RegionStart) |
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450 | { |
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451 | //m_log.Debug("[Script] Posted changed(CHANGED_REGION_RESTART) to script"); |
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452 | PostEvent(new EventParams("changed", |
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453 | new Object[] { new LSL_Types.LSLInteger((int)Changed.REGION_RESTART) }, new DetectParams[0])); |
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454 | } |
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455 | else if (m_stateSource == StateSource.PrimCrossing || m_stateSource == StateSource.Teleporting) |
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456 | { |
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457 | // CHANGED_REGION |
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458 | PostEvent(new EventParams("changed", |
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459 | new Object[] { new LSL_Types.LSLInteger((int)Changed.REGION) }, new DetectParams[0])); |
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460 | |||
461 | // CHANGED_TELEPORT |
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462 | if (m_stateSource == StateSource.Teleporting) |
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463 | PostEvent(new EventParams("changed", |
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464 | new Object[] { new LSL_Types.LSLInteger((int)Changed.TELEPORT) }, new DetectParams[0])); |
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465 | } |
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466 | } |
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467 | else |
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468 | { |
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469 | if (m_startOnInit) |
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470 | Start(); |
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471 | PostEvent(new EventParams("state_entry", |
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472 | new Object[0], new DetectParams[0])); |
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473 | if (m_postOnRez) |
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474 | { |
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475 | PostEvent(new EventParams("on_rez", |
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476 | new Object[] {new LSL_Types.LSLInteger(StartParam)}, new DetectParams[0])); |
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477 | } |
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478 | |||
479 | if (m_stateSource == StateSource.AttachedRez) |
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480 | { |
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481 | PostEvent(new EventParams("attach", |
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482 | new object[] { new LSL_Types.LSLString(m_AttachedAvatar.ToString()) }, new DetectParams[0])); |
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483 | } |
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484 | } |
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485 | } |
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486 | |||
487 | private void ReleaseControls() |
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488 | { |
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489 | int permsMask; |
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490 | UUID permsGranter; |
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491 | lock (Part.TaskInventory) |
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492 | { |
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493 | if (!Part.TaskInventory.ContainsKey(ItemID)) |
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494 | return; |
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495 | |||
496 | permsGranter = Part.TaskInventory[ItemID].PermsGranter; |
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497 | permsMask = Part.TaskInventory[ItemID].PermsMask; |
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498 | } |
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499 | |||
500 | if ((permsMask & ScriptBaseClass.PERMISSION_TAKE_CONTROLS) != 0) |
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501 | { |
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502 | ScenePresence presence = Engine.World.GetScenePresence(permsGranter); |
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503 | if (presence != null) |
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504 | presence.UnRegisterControlEventsToScript(LocalID, ItemID); |
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505 | } |
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506 | } |
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507 | |||
508 | public void DestroyScriptInstance() |
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509 | { |
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510 | ReleaseControls(); |
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511 | AsyncCommandManager.RemoveScript(Engine, LocalID, ItemID); |
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512 | } |
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513 | |||
514 | public void RemoveState() |
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515 | { |
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516 | string savedState = Path.Combine(Path.GetDirectoryName(m_Assembly), |
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517 | ItemID.ToString() + ".state"); |
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518 | |||
519 | try |
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520 | { |
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521 | File.Delete(savedState); |
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522 | } |
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523 | catch (Exception e) |
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524 | { |
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525 | m_log.Warn( |
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526 | string.Format( |
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527 | "[SCRIPT INSTANCE]: Could not delete script state {0} for script {1} (id {2}) in part {3} (id {4}) in object {5} in {6}. Exception ", |
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528 | savedState, ScriptTask.Name, ScriptTask.ItemID, Part.Name, Part.UUID, Part.ParentGroup.Name, Engine.World.Name), |
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529 | e); |
||
530 | } |
||
531 | } |
||
532 | |||
533 | public void VarDump(Dictionary<string, object> vars) |
||
534 | { |
||
535 | // m_log.Info("Variable dump for script "+ ItemID.ToString()); |
||
536 | // foreach (KeyValuePair<string, object> v in vars) |
||
537 | // { |
||
538 | // m_log.Info("Variable: "+v.Key+" = "+v.Value.ToString()); |
||
539 | // } |
||
540 | } |
||
541 | |||
542 | public void Start() |
||
543 | { |
||
544 | lock (EventQueue) |
||
545 | { |
||
546 | if (Running) |
||
547 | return; |
||
548 | |||
549 | Running = true; |
||
550 | |||
551 | TimeStarted = DateTime.Now; |
||
552 | MeasurementPeriodTickStart = Util.EnvironmentTickCount(); |
||
553 | MeasurementPeriodExecutionTime = 0; |
||
554 | |||
555 | if (EventQueue.Count > 0) |
||
556 | { |
||
557 | if (m_CurrentWorkItem == null) |
||
558 | m_CurrentWorkItem = Engine.QueueEventHandler(this); |
||
559 | // else |
||
560 | // m_log.Error("[Script] Tried to start a script that was already queued"); |
||
561 | } |
||
562 | } |
||
563 | } |
||
564 | |||
565 | public bool Stop(int timeout) |
||
566 | { |
||
567 | if (DebugLevel >= 1) |
||
568 | m_log.DebugFormat( |
||
569 | "[SCRIPT INSTANCE]: Stopping script {0} {1} in {2} {3} with timeout {4} {5} {6}", |
||
570 | ScriptName, ItemID, PrimName, ObjectID, timeout, m_InSelfDelete, DateTime.Now.Ticks); |
||
571 | |||
572 | IScriptWorkItem workItem; |
||
573 | |||
574 | lock (EventQueue) |
||
575 | { |
||
576 | if (!Running) |
||
577 | return true; |
||
578 | |||
579 | // If we're not running or waiting to run an event then we can safely stop. |
||
580 | if (m_CurrentWorkItem == null) |
||
581 | { |
||
582 | Running = false; |
||
583 | return true; |
||
584 | } |
||
585 | |||
586 | // If we are waiting to run an event then we can try to cancel it. |
||
587 | if (m_CurrentWorkItem.Cancel()) |
||
588 | { |
||
589 | m_CurrentWorkItem = null; |
||
590 | Running = false; |
||
591 | return true; |
||
592 | } |
||
593 | |||
594 | workItem = m_CurrentWorkItem; |
||
595 | Running = false; |
||
596 | } |
||
597 | |||
598 | // Wait for the current event to complete. |
||
599 | if (!m_InSelfDelete) |
||
600 | { |
||
601 | if (!m_coopTermination) |
||
602 | { |
||
603 | // If we're not co-operative terminating then try and wait for the event to complete before stopping |
||
604 | if (workItem.Wait(timeout)) |
||
605 | return true; |
||
606 | } |
||
607 | else |
||
608 | { |
||
609 | if (DebugLevel >= 1) |
||
610 | m_log.DebugFormat( |
||
611 | "[SCRIPT INSTANCE]: Co-operatively stopping script {0} {1} in {2} {3}", |
||
612 | ScriptName, ItemID, PrimName, ObjectID); |
||
613 | |||
614 | // This will terminate the event on next handle check by the script. |
||
615 | m_coopSleepHandle.Set(); |
||
616 | |||
617 | // For now, we will wait forever since the event should always cleanly terminate once LSL loop |
||
618 | // checking is implemented. May want to allow a shorter timeout option later. |
||
619 | if (workItem.Wait(Timeout.Infinite)) |
||
620 | { |
||
621 | if (DebugLevel >= 1) |
||
622 | m_log.DebugFormat( |
||
623 | "[SCRIPT INSTANCE]: Co-operatively stopped script {0} {1} in {2} {3}", |
||
624 | ScriptName, ItemID, PrimName, ObjectID); |
||
625 | |||
626 | return true; |
||
627 | } |
||
628 | } |
||
629 | } |
||
630 | |||
631 | lock (EventQueue) |
||
632 | { |
||
633 | workItem = m_CurrentWorkItem; |
||
634 | } |
||
635 | |||
636 | if (workItem == null) |
||
637 | return true; |
||
638 | |||
639 | // If the event still hasn't stopped and we the stop isn't the result of script or object removal, then |
||
640 | // forcibly abort the work item (this aborts the underlying thread). |
||
641 | // Co-operative termination should never reach this point. |
||
642 | if (!m_InSelfDelete) |
||
643 | { |
||
644 | m_log.DebugFormat( |
||
645 | "[SCRIPT INSTANCE]: Aborting unstopped script {0} {1} in prim {2}, localID {3}, timeout was {4} ms", |
||
646 | ScriptName, ItemID, PrimName, LocalID, timeout); |
||
647 | |||
648 | workItem.Abort(); |
||
649 | } |
||
650 | |||
651 | lock (EventQueue) |
||
652 | { |
||
653 | m_CurrentWorkItem = null; |
||
654 | } |
||
655 | |||
656 | return true; |
||
657 | } |
||
658 | |||
659 | public void SetState(string state) |
||
660 | { |
||
661 | if (state == State) |
||
662 | return; |
||
663 | |||
664 | PostEvent(new EventParams("state_exit", new Object[0], |
||
665 | new DetectParams[0])); |
||
666 | PostEvent(new EventParams("state", new Object[] { state }, |
||
667 | new DetectParams[0])); |
||
668 | PostEvent(new EventParams("state_entry", new Object[0], |
||
669 | new DetectParams[0])); |
||
670 | |||
671 | throw new EventAbortException(); |
||
672 | } |
||
673 | |||
674 | /// <summary> |
||
675 | /// Post an event to this script instance. |
||
676 | /// </summary> |
||
677 | /// <remarks> |
||
678 | /// The request to run the event is sent |
||
679 | /// </remarks> |
||
680 | /// <param name="data"></param> |
||
681 | public void PostEvent(EventParams data) |
||
682 | { |
||
683 | // m_log.DebugFormat("[Script] Posted event {2} in state {3} to {0}.{1}", |
||
684 | // PrimName, ScriptName, data.EventName, State); |
||
685 | |||
686 | if (!Running) |
||
687 | return; |
||
688 | |||
689 | // If min event delay is set then ignore any events untill the time has expired |
||
690 | // This currently only allows 1 event of any type in the given time period. |
||
691 | // This may need extending to allow for a time for each individual event type. |
||
692 | if (m_eventDelayTicks != 0) |
||
693 | { |
||
694 | if (DateTime.Now.Ticks < m_nextEventTimeTicks) |
||
695 | return; |
||
696 | m_nextEventTimeTicks = DateTime.Now.Ticks + m_eventDelayTicks; |
||
697 | } |
||
698 | |||
699 | lock (EventQueue) |
||
700 | { |
||
701 | if (EventQueue.Count >= m_MaxScriptQueue) |
||
702 | return; |
||
703 | |||
704 | if (data.EventName == "timer") |
||
705 | { |
||
706 | if (m_TimerQueued) |
||
707 | return; |
||
708 | m_TimerQueued = true; |
||
709 | } |
||
710 | |||
711 | if (data.EventName == "control") |
||
712 | { |
||
713 | int held = ((LSL_Types.LSLInteger)data.Params[1]).value; |
||
714 | // int changed = ((LSL_Types.LSLInteger)data.Params[2]).value; |
||
715 | |||
716 | // If the last message was a 0 (nothing held) |
||
717 | // and this one is also nothing held, drop it |
||
718 | // |
||
719 | if (m_LastControlLevel == held && held == 0) |
||
720 | return; |
||
721 | |||
722 | // If there is one or more queued, then queue |
||
723 | // only changed ones, else queue unconditionally |
||
724 | // |
||
725 | if (m_ControlEventsInQueue > 0) |
||
726 | { |
||
727 | if (m_LastControlLevel == held) |
||
728 | return; |
||
729 | } |
||
730 | |||
731 | m_LastControlLevel = held; |
||
732 | m_ControlEventsInQueue++; |
||
733 | } |
||
734 | |||
735 | if (data.EventName == "collision") |
||
736 | { |
||
737 | if (m_CollisionInQueue) |
||
738 | return; |
||
739 | if (data.DetectParams == null) |
||
740 | return; |
||
741 | |||
742 | m_CollisionInQueue = true; |
||
743 | } |
||
744 | |||
745 | EventQueue.Enqueue(data); |
||
746 | |||
747 | if (m_CurrentWorkItem == null) |
||
748 | { |
||
749 | m_CurrentWorkItem = Engine.QueueEventHandler(this); |
||
750 | } |
||
751 | } |
||
752 | } |
||
753 | |||
754 | /// <summary> |
||
755 | /// Process the next event queued for this script |
||
756 | /// </summary> |
||
757 | /// <returns></returns> |
||
758 | public object EventProcessor() |
||
759 | { |
||
760 | // We check here as the thread stopping this instance from running may itself hold the m_Script lock. |
||
761 | if (!Running) |
||
762 | return 0; |
||
763 | |||
764 | lock (m_Script) |
||
765 | { |
||
766 | // m_log.DebugFormat("[XEngine]: EventProcessor() invoked for {0}.{1}", PrimName, ScriptName); |
||
767 | |||
768 | if (Suspended) |
||
769 | return 0; |
||
770 | |||
771 | EventParams data = null; |
||
772 | |||
773 | lock (EventQueue) |
||
774 | { |
||
775 | data = (EventParams)EventQueue.Dequeue(); |
||
776 | if (data == null) // Shouldn't happen |
||
777 | { |
||
778 | if (EventQueue.Count > 0 && Running && !ShuttingDown) |
||
779 | { |
||
780 | m_CurrentWorkItem = Engine.QueueEventHandler(this); |
||
781 | } |
||
782 | else |
||
783 | { |
||
784 | m_CurrentWorkItem = null; |
||
785 | } |
||
786 | return 0; |
||
787 | } |
||
788 | |||
789 | if (data.EventName == "timer") |
||
790 | m_TimerQueued = false; |
||
791 | if (data.EventName == "control") |
||
792 | { |
||
793 | if (m_ControlEventsInQueue > 0) |
||
794 | m_ControlEventsInQueue--; |
||
795 | } |
||
796 | if (data.EventName == "collision") |
||
797 | m_CollisionInQueue = false; |
||
798 | } |
||
799 | |||
800 | if (DebugLevel >= 2) |
||
801 | m_log.DebugFormat( |
||
802 | "[SCRIPT INSTANCE]: Processing event {0} for {1}/{2}({3})/{4}({5}) @ {6}/{7}", |
||
803 | data.EventName, |
||
804 | ScriptName, |
||
805 | Part.Name, |
||
806 | Part.LocalId, |
||
807 | Part.ParentGroup.Name, |
||
808 | Part.ParentGroup.UUID, |
||
809 | Part.AbsolutePosition, |
||
810 | Part.ParentGroup.Scene.Name); |
||
811 | |||
812 | m_DetectParams = data.DetectParams; |
||
813 | |||
814 | if (data.EventName == "state") // Hardcoded state change |
||
815 | { |
||
816 | State = data.Params[0].ToString(); |
||
817 | |||
818 | if (DebugLevel >= 1) |
||
819 | m_log.DebugFormat( |
||
820 | "[SCRIPT INSTANCE]: Changing state to {0} for {1}/{2}({3})/{4}({5}) @ {6}/{7}", |
||
821 | State, |
||
822 | ScriptName, |
||
823 | Part.Name, |
||
824 | Part.LocalId, |
||
825 | Part.ParentGroup.Name, |
||
826 | Part.ParentGroup.UUID, |
||
827 | Part.AbsolutePosition, |
||
828 | Part.ParentGroup.Scene.Name); |
||
829 | |||
830 | AsyncCommandManager.RemoveScript(Engine, |
||
831 | LocalID, ItemID); |
||
832 | |||
833 | Part.SetScriptEvents(ItemID, (int)m_Script.GetStateEventFlags(State)); |
||
834 | } |
||
835 | else |
||
836 | { |
||
837 | if (Engine.World.PipeEventsForScript(LocalID) || |
||
838 | data.EventName == "control") // Don't freeze avies! |
||
839 | { |
||
840 | // m_log.DebugFormat("[Script] Delivered event {2} in state {3} to {0}.{1}", |
||
841 | // PrimName, ScriptName, data.EventName, State); |
||
842 | |||
843 | try |
||
844 | { |
||
845 | m_CurrentEvent = data.EventName; |
||
846 | m_EventStart = DateTime.Now; |
||
847 | m_InEvent = true; |
||
848 | |||
849 | int start = Util.EnvironmentTickCount(); |
||
850 | |||
851 | // Reset the measurement period when we reach the end of the current one. |
||
852 | if (start - MeasurementPeriodTickStart > MaxMeasurementPeriod) |
||
853 | MeasurementPeriodTickStart = start; |
||
854 | |||
855 | m_Script.ExecuteEvent(State, data.EventName, data.Params); |
||
856 | |||
857 | MeasurementPeriodExecutionTime += Util.EnvironmentTickCount() - start; |
||
858 | |||
859 | m_InEvent = false; |
||
860 | m_CurrentEvent = String.Empty; |
||
861 | |||
862 | if (m_SaveState) |
||
863 | { |
||
864 | // This will be the very first event we deliver |
||
865 | // (state_entry) in default state |
||
866 | // |
||
867 | SaveState(m_Assembly); |
||
868 | |||
869 | m_SaveState = false; |
||
870 | } |
||
871 | } |
||
872 | catch (Exception e) |
||
873 | { |
||
874 | // m_log.DebugFormat( |
||
875 | // "[SCRIPT] Exception in script {0} {1}: {2}{3}", |
||
876 | // ScriptName, ItemID, e.Message, e.StackTrace); |
||
877 | |||
878 | m_InEvent = false; |
||
879 | m_CurrentEvent = String.Empty; |
||
880 | |||
881 | if ((!(e is TargetInvocationException) |
||
882 | || (!(e.InnerException is SelfDeleteException) |
||
883 | && !(e.InnerException is ScriptDeleteException) |
||
884 | && !(e.InnerException is ScriptCoopStopException))) |
||
885 | && !(e is ThreadAbortException)) |
||
886 | { |
||
887 | try |
||
888 | { |
||
889 | // DISPLAY ERROR INWORLD |
||
890 | string text = FormatException(e); |
||
891 | |||
892 | if (text.Length > 1000) |
||
893 | text = text.Substring(0, 1000); |
||
894 | Engine.World.SimChat(Utils.StringToBytes(text), |
||
895 | ChatTypeEnum.DebugChannel, 2147483647, |
||
896 | Part.AbsolutePosition, |
||
897 | Part.Name, Part.UUID, false); |
||
898 | |||
899 | |||
900 | m_log.DebugFormat( |
||
901 | "[SCRIPT INSTANCE]: Runtime error in script {0}, part {1} {2} at {3} in {4}, displayed error {5}, actual exception {6}", |
||
902 | ScriptName, |
||
903 | PrimName, |
||
904 | Part.UUID, |
||
905 | Part.AbsolutePosition, |
||
906 | Part.ParentGroup.Scene.Name, |
||
907 | text.Replace("\n", "\\n"), |
||
908 | e.InnerException); |
||
909 | } |
||
910 | catch (Exception) |
||
911 | { |
||
912 | } |
||
913 | // catch (Exception e2) // LEGIT: User Scripting |
||
914 | // { |
||
915 | // m_log.Error("[SCRIPT]: "+ |
||
916 | // "Error displaying error in-world: " + |
||
917 | // e2.ToString()); |
||
918 | // m_log.Error("[SCRIPT]: " + |
||
919 | // "Errormessage: Error compiling script:\r\n" + |
||
920 | // e.ToString()); |
||
921 | // } |
||
922 | } |
||
923 | else if ((e is TargetInvocationException) && (e.InnerException is SelfDeleteException)) |
||
924 | { |
||
925 | m_InSelfDelete = true; |
||
926 | Engine.World.DeleteSceneObject(Part.ParentGroup, false); |
||
927 | } |
||
928 | else if ((e is TargetInvocationException) && (e.InnerException is ScriptDeleteException)) |
||
929 | { |
||
930 | m_InSelfDelete = true; |
||
931 | Part.Inventory.RemoveInventoryItem(ItemID); |
||
932 | } |
||
933 | else if ((e is TargetInvocationException) && (e.InnerException is ScriptCoopStopException)) |
||
934 | { |
||
935 | if (DebugLevel >= 1) |
||
936 | m_log.DebugFormat( |
||
937 | "[SCRIPT INSTANCE]: Script {0}.{1} in event {2}, state {3} stopped co-operatively.", |
||
938 | PrimName, ScriptName, data.EventName, State); |
||
939 | } |
||
940 | } |
||
941 | } |
||
942 | } |
||
943 | |||
944 | // If there are more events and we are currently running and not shutting down, then ask the |
||
945 | // script engine to run the next event. |
||
946 | lock (EventQueue) |
||
947 | { |
||
948 | EventsProcessed++; |
||
949 | |||
950 | if (EventQueue.Count > 0 && Running && !ShuttingDown) |
||
951 | { |
||
952 | m_CurrentWorkItem = Engine.QueueEventHandler(this); |
||
953 | } |
||
954 | else |
||
955 | { |
||
956 | m_CurrentWorkItem = null; |
||
957 | } |
||
958 | } |
||
959 | |||
960 | m_DetectParams = null; |
||
961 | |||
962 | return 0; |
||
963 | } |
||
964 | } |
||
965 | |||
966 | public int EventTime() |
||
967 | { |
||
968 | if (!m_InEvent) |
||
969 | return 0; |
||
970 | |||
971 | return (DateTime.Now - m_EventStart).Seconds; |
||
972 | } |
||
973 | |||
974 | public void ResetScript(int timeout) |
||
975 | { |
||
976 | if (m_Script == null) |
||
977 | return; |
||
978 | |||
979 | bool running = Running; |
||
980 | |||
981 | RemoveState(); |
||
982 | ReleaseControls(); |
||
983 | |||
984 | Stop(timeout); |
||
985 | Part.Inventory.GetInventoryItem(ItemID).PermsMask = 0; |
||
986 | Part.Inventory.GetInventoryItem(ItemID).PermsGranter = UUID.Zero; |
||
987 | AsyncCommandManager.RemoveScript(Engine, LocalID, ItemID); |
||
988 | EventQueue.Clear(); |
||
989 | m_Script.ResetVars(); |
||
990 | State = "default"; |
||
991 | |||
992 | Part.SetScriptEvents(ItemID, |
||
993 | (int)m_Script.GetStateEventFlags(State)); |
||
994 | if (running) |
||
995 | Start(); |
||
996 | m_SaveState = true; |
||
997 | PostEvent(new EventParams("state_entry", |
||
998 | new Object[0], new DetectParams[0])); |
||
999 | } |
||
1000 | |||
1001 | public void ApiResetScript() |
||
1002 | { |
||
1003 | // bool running = Running; |
||
1004 | |||
1005 | RemoveState(); |
||
1006 | ReleaseControls(); |
||
1007 | |||
1008 | m_Script.ResetVars(); |
||
1009 | Part.Inventory.GetInventoryItem(ItemID).PermsMask = 0; |
||
1010 | Part.Inventory.GetInventoryItem(ItemID).PermsGranter = UUID.Zero; |
||
1011 | AsyncCommandManager.RemoveScript(Engine, LocalID, ItemID); |
||
1012 | |||
1013 | EventQueue.Clear(); |
||
1014 | m_Script.ResetVars(); |
||
1015 | State = "default"; |
||
1016 | |||
1017 | Part.SetScriptEvents(ItemID, |
||
1018 | (int)m_Script.GetStateEventFlags(State)); |
||
1019 | |||
1020 | if (m_CurrentEvent != "state_entry") |
||
1021 | { |
||
1022 | m_SaveState = true; |
||
1023 | PostEvent(new EventParams("state_entry", |
||
1024 | new Object[0], new DetectParams[0])); |
||
1025 | throw new EventAbortException(); |
||
1026 | } |
||
1027 | } |
||
1028 | |||
1029 | public Dictionary<string, object> GetVars() |
||
1030 | { |
||
1031 | if (m_Script != null) |
||
1032 | return m_Script.GetVars(); |
||
1033 | else |
||
1034 | return new Dictionary<string, object>(); |
||
1035 | } |
||
1036 | |||
1037 | public void SetVars(Dictionary<string, object> vars) |
||
1038 | { |
||
1039 | m_Script.SetVars(vars); |
||
1040 | } |
||
1041 | |||
1042 | public DetectParams GetDetectParams(int idx) |
||
1043 | { |
||
1044 | if (m_DetectParams == null) |
||
1045 | return null; |
||
1046 | if (idx < 0 || idx >= m_DetectParams.Length) |
||
1047 | return null; |
||
1048 | |||
1049 | return m_DetectParams[idx]; |
||
1050 | } |
||
1051 | |||
1052 | public UUID GetDetectID(int idx) |
||
1053 | { |
||
1054 | if (m_DetectParams == null) |
||
1055 | return UUID.Zero; |
||
1056 | if (idx < 0 || idx >= m_DetectParams.Length) |
||
1057 | return UUID.Zero; |
||
1058 | |||
1059 | return m_DetectParams[idx].Key; |
||
1060 | } |
||
1061 | |||
1062 | public void SaveState(string assembly) |
||
1063 | { |
||
1064 | // If we're currently in an event, just tell it to save upon return |
||
1065 | // |
||
1066 | if (m_InEvent) |
||
1067 | { |
||
1068 | m_SaveState = true; |
||
1069 | return; |
||
1070 | } |
||
1071 | |||
1072 | PluginData = AsyncCommandManager.GetSerializationData(Engine, ItemID); |
||
1073 | |||
1074 | string xml = ScriptSerializer.Serialize(this); |
||
1075 | |||
1076 | // Compare hash of the state we just just created with the state last written to disk |
||
1077 | // If the state is different, update the disk file. |
||
1078 | UUID hash = UUID.Parse(Utils.MD5String(xml)); |
||
1079 | |||
1080 | if (hash != m_CurrentStateHash) |
||
1081 | { |
||
1082 | try |
||
1083 | { |
||
1084 | FileStream fs = File.Create(Path.Combine(Path.GetDirectoryName(assembly), ItemID.ToString() + ".state")); |
||
1085 | Byte[] buf = Util.UTF8NoBomEncoding.GetBytes(xml); |
||
1086 | fs.Write(buf, 0, buf.Length); |
||
1087 | fs.Close(); |
||
1088 | } |
||
1089 | catch(Exception) |
||
1090 | { |
||
1091 | // m_log.Error("Unable to save xml\n"+e.ToString()); |
||
1092 | } |
||
1093 | //if (!File.Exists(Path.Combine(Path.GetDirectoryName(assembly), ItemID.ToString() + ".state"))) |
||
1094 | //{ |
||
1095 | // throw new Exception("Completed persistence save, but no file was created"); |
||
1096 | //} |
||
1097 | m_CurrentStateHash = hash; |
||
1098 | } |
||
1099 | } |
||
1100 | |||
1101 | public IScriptApi GetApi(string name) |
||
1102 | { |
||
1103 | if (m_Apis.ContainsKey(name)) |
||
1104 | { |
||
1105 | // m_log.DebugFormat("[SCRIPT INSTANCE]: Found api {0} in {1}@{2}", name, ScriptName, PrimName); |
||
1106 | |||
1107 | return m_Apis[name]; |
||
1108 | } |
||
1109 | |||
1110 | // m_log.DebugFormat("[SCRIPT INSTANCE]: Did not find api {0} in {1}@{2}", name, ScriptName, PrimName); |
||
1111 | |||
1112 | return null; |
||
1113 | } |
||
1114 | |||
1115 | public override string ToString() |
||
1116 | { |
||
1117 | return String.Format("{0} {1} on {2}", ScriptName, ItemID, PrimName); |
||
1118 | } |
||
1119 | |||
1120 | string FormatException(Exception e) |
||
1121 | { |
||
1122 | if (e.InnerException == null) // Not a normal runtime error |
||
1123 | return e.ToString(); |
||
1124 | |||
1125 | string message = "Runtime error:\n" + e.InnerException.StackTrace; |
||
1126 | string[] lines = message.Split(new char[] {'\n'}); |
||
1127 | |||
1128 | foreach (string line in lines) |
||
1129 | { |
||
1130 | if (line.Contains("SecondLife.Script")) |
||
1131 | { |
||
1132 | int idx = line.IndexOf(':'); |
||
1133 | if (idx != -1) |
||
1134 | { |
||
1135 | string val = line.Substring(idx+1); |
||
1136 | int lineNum = 0; |
||
1137 | if (int.TryParse(val, out lineNum)) |
||
1138 | { |
||
1139 | KeyValuePair<int, int> pos = |
||
1140 | Compiler.FindErrorPosition( |
||
1141 | lineNum, 0, LineMap); |
||
1142 | |||
1143 | int scriptLine = pos.Key; |
||
1144 | int col = pos.Value; |
||
1145 | if (scriptLine == 0) |
||
1146 | scriptLine++; |
||
1147 | if (col == 0) |
||
1148 | col++; |
||
1149 | message = string.Format("Runtime error:\n" + |
||
1150 | "({0}): {1}", scriptLine - 1, |
||
1151 | e.InnerException.Message); |
||
1152 | |||
1153 | return message; |
||
1154 | } |
||
1155 | } |
||
1156 | } |
||
1157 | } |
||
1158 | |||
1159 | // m_log.ErrorFormat("Scripting exception:"); |
||
1160 | // m_log.ErrorFormat(e.ToString()); |
||
1161 | |||
1162 | return e.ToString(); |
||
1163 | } |
||
1164 | |||
1165 | public string GetAssemblyName() |
||
1166 | { |
||
1167 | return m_Assembly; |
||
1168 | } |
||
1169 | |||
1170 | public string GetXMLState() |
||
1171 | { |
||
1172 | bool run = Running; |
||
1173 | Stop(100); |
||
1174 | Running = run; |
||
1175 | |||
1176 | // We should not be doing this, but since we are about to |
||
1177 | // dispose this, it really doesn't make a difference |
||
1178 | // This is meant to work around a Windows only race |
||
1179 | // |
||
1180 | m_InEvent = false; |
||
1181 | |||
1182 | // Force an update of the in-memory plugin data |
||
1183 | // |
||
1184 | PluginData = AsyncCommandManager.GetSerializationData(Engine, ItemID); |
||
1185 | |||
1186 | return ScriptSerializer.Serialize(this); |
||
1187 | } |
||
1188 | |||
1189 | public UUID RegionID |
||
1190 | { |
||
1191 | get { return m_RegionID; } |
||
1192 | } |
||
1193 | |||
1194 | public void Suspend() |
||
1195 | { |
||
1196 | Suspended = true; |
||
1197 | } |
||
1198 | |||
1199 | public void Resume() |
||
1200 | { |
||
1201 | Suspended = false; |
||
1202 | } |
||
1203 | } |
||
1204 | |||
1205 | /// <summary> |
||
1206 | /// Xengine event wait handle. |
||
1207 | /// </summary> |
||
1208 | /// <remarks> |
||
1209 | /// This class exists becase XEngineScriptBase gets a reference to this wait handle. We need to make sure that |
||
1210 | /// when scripts are running in different AppDomains the lease does not expire. |
||
1211 | /// FIXME: Like LSL_Api, etc., this effectively leaks memory since the GC will never collect it. To avoid this, |
||
1212 | /// proper remoting sponsorship needs to be implemented across the board. |
||
1213 | /// </remarks> |
||
1214 | public class XEngineEventWaitHandle : EventWaitHandle |
||
1215 | { |
||
1216 | public XEngineEventWaitHandle(bool initialState, EventResetMode mode) : base(initialState, mode) {} |
||
1217 | |||
1218 | public override Object InitializeLifetimeService() |
||
1219 | { |
||
1220 | return null; |
||
1221 | } |
||
1222 | } |
||
1223 | } |