aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/OpenSim/Region/ScriptEngine/DotNetEngine/ScriptEngine.cs
blob: c1902ba9b34ab16bbfa6857af0837f5a8986f0d2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
/*
 * Copyright (c) Contributors, http://opensimulator.org/
 * See CONTRIBUTORS.TXT for a full list of copyright holders.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the OpenSim Project nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

using System;
using System.Collections.Generic;
using System.Reflection;
using log4net;
using Nini.Config;
using OpenSim.Framework;
using OpenSim.Region.CoreModules.Framework.EventQueue;
using OpenSim.Region.Framework.Interfaces;
using OpenSim.Region.Framework.Scenes;
using OpenSim.Region.ScriptEngine.Interfaces;
using OpenMetaverse;
using OpenMetaverse.StructuredData;
using OpenSim.Region.ScriptEngine.Shared;
using OpenSim.Region.ScriptEngine.Shared.ScriptBase;

namespace OpenSim.Region.ScriptEngine.DotNetEngine
{
    [Serializable]
    public class ScriptEngine : IRegionModule, IScriptEngine, IScriptModule
    {
        private static readonly ILog m_log =
                LogManager.GetLogger(
                MethodBase.GetCurrentMethod().DeclaringType);

        public static List<ScriptEngine> ScriptEngines =
                new List<ScriptEngine>();

        private Scene m_Scene;
        public Scene World
        {
            get { return m_Scene; }
        }

        // Handles and queues incoming events from OpenSim
        public EventManager m_EventManager;

        // Executes events, handles script threads
        public EventQueueManager m_EventQueueManager;

        // Load, unload and execute scripts
        public ScriptManager m_ScriptManager;

        // Handles loading/unloading of scripts into AppDomains
        public AppDomainManager m_AppDomainManager;

        // Thread that does different kinds of maintenance,
        // for example refreshing config and killing scripts
        // that has been running too long
        public static MaintenanceThread m_MaintenanceThread;

        public IConfigSource ConfigSource;
        public IConfig ScriptConfigSource;
        private bool m_enabled = false;

        public IConfig Config
        {
            get { return ScriptConfigSource; }
        }

        // How many seconds between re-reading config-file.
        // 0 = never. ScriptEngine will try to adjust to new config changes.
        public int RefreshConfigFileSeconds {
            get { return (int)(RefreshConfigFilens / 10000000); }
            set { RefreshConfigFilens = value * 10000000; }
        }

        public long RefreshConfigFilens;

        public string ScriptEngineName
        {
            get { return "ScriptEngine.DotNetEngine"; }
        }
        
        public ScriptEngine()
        {
            // For logging, just need any instance, doesn't matter
            Common.mySE = this;

            lock (ScriptEngines)
            {
                // Keep a list of ScriptEngines for shared threads
                // to process all instances
                ScriptEngines.Add(this);
            }
        }

        public void Initialise(Scene Sceneworld, IConfigSource config)
        {
            m_log.Info("[" + ScriptEngineName + "]: ScriptEngine initializing");

            ConfigSource = config;
            m_Scene = Sceneworld;

            // Make sure we have config
            if (ConfigSource.Configs[ScriptEngineName] == null)
                ConfigSource.AddConfig(ScriptEngineName);

            ScriptConfigSource = ConfigSource.Configs[ScriptEngineName];

            m_enabled = ScriptConfigSource.GetBoolean("Enabled", true);
            if (!m_enabled)
                return;

            // Create all objects we'll be using
            m_EventQueueManager = new EventQueueManager(this);
            m_EventManager = new EventManager(this, true);

            // We need to start it
            m_ScriptManager = new ScriptManager(this);
            m_ScriptManager.Setup();
            m_AppDomainManager = new AppDomainManager(this);
            if (m_MaintenanceThread == null)
                m_MaintenanceThread = new MaintenanceThread();

            m_log.Info("[" + ScriptEngineName + "]: Reading configuration "+
                    "from config section \"" + ScriptEngineName + "\"");

            ReadConfig();

            m_Scene.StackModuleInterface<IScriptModule>(this);
        }

        public void PostInitialise()
        {
            if (!m_enabled)
                return;

            m_EventManager.HookUpEvents();

            m_Scene.EventManager.OnScriptReset += OnScriptReset;
            m_Scene.EventManager.OnGetScriptRunning += OnGetScriptRunning;
            m_Scene.EventManager.OnStartScript += OnStartScript;
            m_Scene.EventManager.OnStopScript += OnStopScript;

            m_ScriptManager.Start();
        }

        public void Shutdown()
        {
            // We are shutting down
            lock (ScriptEngines)
            {
                ScriptEngines.Remove(this);
            }
        }

        public void ReadConfig()
        {
            RefreshConfigFileSeconds = ScriptConfigSource.GetInt("RefreshConfig", 30);

            if (m_EventQueueManager != null) m_EventQueueManager.ReadConfig();
            if (m_EventManager != null) m_EventManager.ReadConfig();
            if (m_ScriptManager != null) m_ScriptManager.ReadConfig();
            if (m_AppDomainManager != null) m_AppDomainManager.ReadConfig();
            if (m_MaintenanceThread != null) m_MaintenanceThread.ReadConfig();
        }

        #region IRegionModule

        public void Close()
        {
        }

        public string Name
        {
            get { return "Common." + ScriptEngineName; }
        }

        public bool IsSharedModule
        {
            get { return false; }
        }

        public bool PostObjectEvent(uint localID, EventParams p)
        {
            return m_EventQueueManager.AddToObjectQueue(localID, p.EventName,
                    p.DetectParams, p.Params);
        }

        public bool PostScriptEvent(UUID itemID, EventParams p)
        {
            uint localID = m_ScriptManager.GetLocalID(itemID);
            return m_EventQueueManager.AddToScriptQueue(localID, itemID,
                    p.EventName, p.DetectParams, p.Params);
        }

        public DetectParams GetDetectParams(UUID itemID, int number)
        {
            uint localID = m_ScriptManager.GetLocalID(itemID);
            if (localID == 0)
                return null;

            InstanceData id = m_ScriptManager.GetScript(localID, itemID);

            if (id == null)
                return null;

            DetectParams[] det = m_ScriptManager.GetDetectParams(id);

            if (number < 0 || number >= det.Length)
                return null;

            return det[number];
        }

        public int GetStartParameter(UUID itemID)
        {
            return m_ScriptManager.GetStartParameter(itemID);
        }

        public void SetMinEventDelay(UUID itemID, double delay)
        {
            // TODO in DotNet, done in XEngine
            throw new NotImplementedException();
        }

        #endregion

        public void SetState(UUID itemID, string state)
        {
            uint localID = m_ScriptManager.GetLocalID(itemID);
            if (localID == 0)
                return;

            InstanceData id = m_ScriptManager.GetScript(localID, itemID);

            if (id == null)
                return;

            string currentState = id.State;

            if (currentState != state)
            {
                try
                {
                    m_EventManager.state_exit(localID);

                }
                catch (AppDomainUnloadedException)
                {
                    Console.WriteLine("[SCRIPT]: state change called when "+
                            "script was unloaded.  Nothing to worry about, "+
                            "but noting the occurance");
                }

                id.State = state;

                try
                {
                    int eventFlags = m_ScriptManager.GetStateEventFlags(localID,
                            itemID);

                    SceneObjectPart part = m_Scene.GetSceneObjectPart(localID);
                    if (part != null)
                        part.SetScriptEvents(itemID, eventFlags);

                    m_EventManager.state_entry(localID);
                }
                catch (AppDomainUnloadedException)
                {
                    Console.WriteLine("[SCRIPT]: state change called when "+
                    "script was unloaded.  Nothing to worry about, but "+
                    "noting the occurance");
                }
            }
        }

        public bool GetScriptState(UUID itemID)
        {
            uint localID = m_ScriptManager.GetLocalID(itemID);
            if (localID == 0)
                return false;

            InstanceData id = m_ScriptManager.GetScript(localID, itemID);
            if (id == null)
                return false;

            return id.Running;
        }

        public void SetScriptState(UUID itemID, bool state)
        {
            uint localID = m_ScriptManager.GetLocalID(itemID);
            if (localID == 0)
                return;

            InstanceData id = m_ScriptManager.GetScript(localID, itemID);
            if (id == null)
                return;

            if (!id.Disabled)
                id.Running = state;
        }

        public void ApiResetScript(UUID itemID)
        {
            uint localID = m_ScriptManager.GetLocalID(itemID);
            if (localID == 0)
                return;

            m_ScriptManager.ResetScript(localID, itemID);
        }

        public void ResetScript(UUID itemID)
        {
            uint localID = m_ScriptManager.GetLocalID(itemID);
            if (localID == 0)
                return;

            m_ScriptManager.ResetScript(localID, itemID);
        }

        public void OnScriptReset(uint localID, UUID itemID)
        {
            ResetScript(itemID);
        }

        public void OnStartScript(uint localID, UUID itemID)
        {
            InstanceData id = m_ScriptManager.GetScript(localID, itemID);
            if (id == null)
                return;        

            if (!id.Disabled)
                id.Running = true;
        }

        public void OnStopScript(uint localID, UUID itemID)
        {
            InstanceData id = m_ScriptManager.GetScript(localID, itemID);
            if (id == null)
                return;        
            
            id.Running = false;
        }

        public void OnGetScriptRunning(IClientAPI controllingClient,
                UUID objectID, UUID itemID)
        {
            uint localID = m_ScriptManager.GetLocalID(itemID);
            if (localID == 0)
                return;

            InstanceData id = m_ScriptManager.GetScript(localID, itemID);
            if (id == null)
                return;        

            IEventQueue eq = World.RequestModuleInterface<IEventQueue>();
            if (eq == null)
            {
                controllingClient.SendScriptRunningReply(objectID, itemID,
                        id.Running);
            }
            else
            {
                eq.Enqueue(EventQueueHelper.ScriptRunningReplyEvent(objectID, itemID, id.Running, true),
                           controllingClient.AgentId);
            }
        }

        public IScriptApi GetApi(UUID itemID, string name)
        {
            return m_ScriptManager.GetApi(itemID, name);
        }

        public IScriptWorkItem QueueEventHandler(Object o)
        {
            return null;
        }

        public string GetAssemblyName(UUID itemID)
        {
            return "";
        }

        public string GetXMLState(UUID itemID)
        {
            return "";
        }
    }
}