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
|
/*
* 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;
using System.Collections.Generic;
using System.Threading;
using libsecondlife;
using OpenSim.Framework;
using OpenSim.Region.Environment.Interfaces;
using OpenSim.Region.ScriptEngine.Interfaces;
using OpenSim.Region.ScriptEngine.Shared;
using OpenSim.Region.ScriptEngine.Shared.Api.Plugins;
using Timer=OpenSim.Region.ScriptEngine.Shared.Api.Plugins.Timer;
namespace OpenSim.Region.ScriptEngine.Shared.Api
{
/// <summary>
/// Handles LSL commands that takes long time and returns an event, for example timers, HTTP requests, etc.
/// </summary>
public class AsyncCommandManager
{
private static Thread cmdHandlerThread;
private static int cmdHandlerThreadCycleSleepms;
private static List<AsyncCommandManager> m_Managers = new List<AsyncCommandManager>();
public IScriptEngine m_ScriptEngine;
private Dataserver m_Dataserver;
private Timer m_Timer;
private HttpRequest m_HttpRequest;
private Listener m_Listener;
private SensorRepeat m_SensorRepeat;
private XmlRequest m_XmlRequest;
public Dataserver DataserverPlugin
{
get { return m_Dataserver; }
}
public Timer TimerPlugin
{
get { return m_Timer; }
}
public HttpRequest HttpRequestPlugin
{
get { return m_HttpRequest; }
}
public Listener ListenerPlugin
{
get { return m_Listener; }
}
public SensorRepeat SensorRepeatPlugin
{
get { return m_SensorRepeat; }
}
public XmlRequest XmlRequestPlugin
{
get { return m_XmlRequest; }
}
public AsyncCommandManager[] Managers
{
get { return m_Managers.ToArray(); }
}
public AsyncCommandManager(IScriptEngine _ScriptEngine)
{
m_ScriptEngine = _ScriptEngine;
if(!m_Managers.Contains(this))
m_Managers.Add(this);
ReadConfig();
// Create instances of all plugins
m_Dataserver = new Dataserver(this);
m_Timer = new Timer(this);
m_HttpRequest = new HttpRequest(this);
m_Listener = new Listener(this);
m_SensorRepeat = new SensorRepeat(this);
m_XmlRequest = new XmlRequest(this);
StartThread();
}
private static void StartThread()
{
if (cmdHandlerThread == null)
{
// Start the thread that will be doing the work
cmdHandlerThread = new Thread(CmdHandlerThreadLoop);
cmdHandlerThread.Name = "AsyncLSLCmdHandlerThread";
cmdHandlerThread.Priority = ThreadPriority.BelowNormal;
cmdHandlerThread.IsBackground = true;
cmdHandlerThread.Start();
ThreadTracker.Add(cmdHandlerThread);
}
}
public void ReadConfig()
{
cmdHandlerThreadCycleSleepms = m_ScriptEngine.Config.GetInt("AsyncLLCommandLoopms", 100);
}
~AsyncCommandManager()
{
// Shut down thread
try
{
if (cmdHandlerThread != null)
{
if (cmdHandlerThread.IsAlive == true)
{
cmdHandlerThread.Abort();
//cmdHandlerThread.Join();
}
}
}
catch
{
}
}
private static void CmdHandlerThreadLoop()
{
while (true)
{
try
{
while (true)
{
Thread.Sleep(cmdHandlerThreadCycleSleepms);
foreach (AsyncCommandManager m in m_Managers)
{
m.DoOneCmdHandlerPass();
}
}
}
catch
{
}
}
}
public void DoOneCmdHandlerPass()
{
// Check timers
m_Timer.CheckTimerEvents();
// Check HttpRequests
m_HttpRequest.CheckHttpRequests();
// Check XMLRPCRequests
m_XmlRequest.CheckXMLRPCRequests();
// Check Listeners
m_Listener.CheckListeners();
// Check Sensors
m_SensorRepeat.CheckSenseRepeaterEvents();
// Check dataserver
m_Dataserver.ExpireRequests();
}
/// <summary>
/// Remove a specific script (and all its pending commands)
/// </summary>
/// <param name="localID"></param>
/// <param name="itemID"></param>
public void RemoveScript(uint localID, LLUUID itemID)
{
// Remove a specific script
// Remove dataserver events
m_Dataserver.RemoveEvents(localID, itemID);
// Remove from: Timers
m_Timer.UnSetTimerEvents(localID, itemID);
// Remove from: HttpRequest
IHttpRequests iHttpReq =
m_ScriptEngine.World.RequestModuleInterface<IHttpRequests>();
iHttpReq.StopHttpRequest(localID, itemID);
IWorldComm comms = m_ScriptEngine.World.RequestModuleInterface<IWorldComm>();
comms.DeleteListener(itemID);
IXMLRPC xmlrpc = m_ScriptEngine.World.RequestModuleInterface<IXMLRPC>();
xmlrpc.DeleteChannels(itemID);
xmlrpc.CancelSRDRequests(itemID);
// Remove Sensors
m_SensorRepeat.UnSetSenseRepeaterEvents(localID, itemID);
}
public Object[] GetSerializationData(LLUUID itemID)
{
List<Object> data = new List<Object>();
Object[] listeners=m_Listener.GetSerializationData(itemID);
if (listeners.Length > 0)
{
data.Add("listener");
data.Add(listeners.Length);
data.AddRange(listeners);
}
Object[] timers=m_Timer.GetSerializationData(itemID);
if (timers.Length > 0)
{
data.Add("timer");
data.Add(timers.Length);
data.AddRange(timers);
}
Object[] sensors=m_SensorRepeat.GetSerializationData(itemID);
if (sensors.Length > 0)
{
data.Add("sensor");
data.Add(sensors.Length);
data.AddRange(sensors);
}
return data.ToArray();
}
public void CreateFromData(uint localID, LLUUID itemID, LLUUID hostID,
Object[] data)
{
int idx = 0;
int len;
while (idx < data.Length)
{
string type = data[idx].ToString();
len = (int)data[idx+1];
idx+=2;
if (len > 0)
{
Object[] item = new Object[len];
Array.Copy(data, idx, item, 0, len);
idx+=len;
switch (type)
{
case "listener":
m_Listener.CreateFromData(localID, itemID, hostID,
item);
break;
case "timer":
m_Timer.CreateFromData(localID, itemID, hostID, item);
break;
case "sensor":
m_SensorRepeat.CreateFromData(localID, itemID, hostID,
item);
break;
}
}
}
}
#region Check llRemoteData channels
#endregion
#region Check llListeners
#endregion
/// <summary>
/// If set to true then threads and stuff should try to make a graceful exit
/// </summary>
public bool PleaseShutdown
{
get { return _PleaseShutdown; }
set { _PleaseShutdown = value; }
}
private bool _PleaseShutdown = false;
}
}
|