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author | Adam Frisby | 2008-04-30 21:16:36 +0000 |
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committer | Adam Frisby | 2008-04-30 21:16:36 +0000 |
commit | f5c312bc3c2567449c7268a54a08a54119f58d53 (patch) | |
tree | 424668a4bbec6873ebc5b8256f3671db102f5e9c /OpenSim/Region/Environment/Modules/Agent/AssetDownload | |
parent | * Adds the AuthbuyerID field to sqlite and makes use of it. (diff) | |
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* Refactored Environment/Modules directory - modules now reside in their own directory with any associated module-specific classes.
* Each module directory is currently inside one of the following category folders: Agent (Anything relating to do with Client<->Server communications.), Avatar (Anything to do with the avatar or presence inworld), Framework (Classes modules can use), Grid (Grid traffic, new OGS2 grid comms), Scripting (Scripting functions, etc), World (The enrivonment/scene, IE Sun/Tree modules.)
* This should be moved into a seperate project file.
Diffstat (limited to 'OpenSim/Region/Environment/Modules/Agent/AssetDownload')
-rw-r--r-- | OpenSim/Region/Environment/Modules/Agent/AssetDownload/AssetDownloadModule.cs | 333 |
1 files changed, 333 insertions, 0 deletions
diff --git a/OpenSim/Region/Environment/Modules/Agent/AssetDownload/AssetDownloadModule.cs b/OpenSim/Region/Environment/Modules/Agent/AssetDownload/AssetDownloadModule.cs new file mode 100644 index 0000000..47c1479 --- /dev/null +++ b/OpenSim/Region/Environment/Modules/Agent/AssetDownload/AssetDownloadModule.cs | |||
@@ -0,0 +1,333 @@ | |||
1 | /* | ||
2 | * Copyright (c) Contributors, http://opensimulator.org/ | ||
3 | * See CONTRIBUTORS.TXT for a full list of copyright holders. | ||
4 | * | ||
5 | * Redistribution and use in source and binary forms, with or without | ||
6 | * modification, are permitted provided that the following conditions are met: | ||
7 | * * Redistributions of source code must retain the above copyright | ||
8 | * notice, this list of conditions and the following disclaimer. | ||
9 | * * Redistributions in binary form must reproduce the above copyright | ||
10 | * notice, this list of conditions and the following disclaimer in the | ||
11 | * documentation and/or other materials provided with the distribution. | ||
12 | * * Neither the name of the OpenSim Project nor the | ||
13 | * names of its contributors may be used to endorse or promote products | ||
14 | * derived from this software without specific prior written permission. | ||
15 | * | ||
16 | * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY | ||
17 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | ||
18 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
19 | * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY | ||
20 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | ||
21 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
22 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | ||
23 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
25 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
26 | */ | ||
27 | |||
28 | using System.Collections.Generic; | ||
29 | using libsecondlife; | ||
30 | using libsecondlife.Packets; | ||
31 | using Nini.Config; | ||
32 | using OpenSim.Framework; | ||
33 | using OpenSim.Region.Environment.Interfaces; | ||
34 | using OpenSim.Region.Environment.Scenes; | ||
35 | |||
36 | namespace OpenSim.Region.Environment.Modules.Agent.AssetDownload | ||
37 | { | ||
38 | public class AssetDownloadModule : IRegionModule | ||
39 | { | ||
40 | private Scene m_scene; | ||
41 | private Dictionary<LLUUID, Scene> RegisteredScenes = new Dictionary<LLUUID, Scene>(); | ||
42 | /// | ||
43 | /// Assets requests (for each user) which are waiting for asset server data. This includes texture requests | ||
44 | /// </summary> | ||
45 | private Dictionary<LLUUID, Dictionary<LLUUID,AssetRequest>> RequestedAssets; | ||
46 | |||
47 | /// <summary> | ||
48 | /// Asset requests with data which are ready to be sent back to requesters. This includes textures. | ||
49 | /// </summary> | ||
50 | private List<AssetRequest> AssetRequests; | ||
51 | |||
52 | public AssetDownloadModule() | ||
53 | { | ||
54 | RequestedAssets = new Dictionary<LLUUID, Dictionary<LLUUID, AssetRequest>>(); | ||
55 | AssetRequests = new List<AssetRequest>(); | ||
56 | } | ||
57 | |||
58 | public void Initialise(Scene scene, IConfigSource config) | ||
59 | { | ||
60 | if (!RegisteredScenes.ContainsKey(scene.RegionInfo.RegionID)) | ||
61 | { | ||
62 | RegisteredScenes.Add(scene.RegionInfo.RegionID, scene); | ||
63 | // scene.EventManager.OnNewClient += NewClient; | ||
64 | } | ||
65 | |||
66 | if (m_scene == null) | ||
67 | { | ||
68 | m_scene = scene; | ||
69 | // m_thread = new Thread(new ThreadStart(RunAssetQueue)); | ||
70 | // m_thread.Name = "AssetDownloadQueueThread"; | ||
71 | // m_thread.IsBackground = true; | ||
72 | // m_thread.Start(); | ||
73 | // OpenSim.Framework.ThreadTracker.Add(m_thread); | ||
74 | } | ||
75 | } | ||
76 | |||
77 | public void PostInitialise() | ||
78 | { | ||
79 | } | ||
80 | |||
81 | public void Close() | ||
82 | { | ||
83 | } | ||
84 | |||
85 | public string Name | ||
86 | { | ||
87 | get { return "AssetDownloadModule"; } | ||
88 | } | ||
89 | |||
90 | public bool IsSharedModule | ||
91 | { | ||
92 | get { return true; } | ||
93 | } | ||
94 | |||
95 | public void NewClient(IClientAPI client) | ||
96 | { | ||
97 | // client.OnRequestAsset += AddAssetRequest; | ||
98 | } | ||
99 | |||
100 | /// <summary> | ||
101 | /// Make an asset request the result of which will be packeted up and sent directly back to the client. | ||
102 | /// </summary> | ||
103 | /// <param name="userInfo"></param> | ||
104 | /// <param name="transferRequest"></param> | ||
105 | public void AddAssetRequest(IClientAPI userInfo, TransferRequestPacket transferRequest) | ||
106 | { | ||
107 | LLUUID requestID = null; | ||
108 | byte source = 2; | ||
109 | if (transferRequest.TransferInfo.SourceType == 2) | ||
110 | { | ||
111 | //direct asset request | ||
112 | requestID = new LLUUID(transferRequest.TransferInfo.Params, 0); | ||
113 | } | ||
114 | else if (transferRequest.TransferInfo.SourceType == 3) | ||
115 | { | ||
116 | //inventory asset request | ||
117 | requestID = new LLUUID(transferRequest.TransferInfo.Params, 80); | ||
118 | source = 3; | ||
119 | //Console.WriteLine("asset request " + requestID); | ||
120 | } | ||
121 | |||
122 | //not found asset | ||
123 | // so request from asset server | ||
124 | Dictionary<LLUUID, AssetRequest> userRequests = null; | ||
125 | if (RequestedAssets.TryGetValue(userInfo.AgentId, out userRequests)) | ||
126 | { | ||
127 | if (!userRequests.ContainsKey(requestID)) | ||
128 | { | ||
129 | AssetRequest request = new AssetRequest(); | ||
130 | request.RequestUser = userInfo; | ||
131 | request.RequestAssetID = requestID; | ||
132 | request.TransferRequestID = transferRequest.TransferInfo.TransferID; | ||
133 | request.AssetRequestSource = source; | ||
134 | request.Params = transferRequest.TransferInfo.Params; | ||
135 | userRequests[requestID] = request; | ||
136 | m_scene.AssetCache.GetAsset(requestID, AssetCallback, false); | ||
137 | } | ||
138 | } | ||
139 | else | ||
140 | { | ||
141 | userRequests = new Dictionary<LLUUID, AssetRequest>(); | ||
142 | AssetRequest request = new AssetRequest(); | ||
143 | request.RequestUser = userInfo; | ||
144 | request.RequestAssetID = requestID; | ||
145 | request.TransferRequestID = transferRequest.TransferInfo.TransferID; | ||
146 | request.AssetRequestSource = source; | ||
147 | request.Params = transferRequest.TransferInfo.Params; | ||
148 | userRequests.Add(requestID, request); | ||
149 | RequestedAssets[userInfo.AgentId] = userRequests; | ||
150 | m_scene.AssetCache.GetAsset(requestID, AssetCallback, false); | ||
151 | } | ||
152 | } | ||
153 | |||
154 | public void AssetCallback(LLUUID assetID, AssetBase asset) | ||
155 | { | ||
156 | if (asset != null) | ||
157 | { | ||
158 | foreach (Dictionary<LLUUID, AssetRequest> userRequests in RequestedAssets.Values) | ||
159 | { | ||
160 | if (userRequests.ContainsKey(assetID)) | ||
161 | { | ||
162 | AssetRequest req = userRequests[assetID]; | ||
163 | if (req != null) | ||
164 | { | ||
165 | req.AssetInf = asset; | ||
166 | req.NumPackets = CalculateNumPackets(asset.Data); | ||
167 | |||
168 | userRequests.Remove(assetID); | ||
169 | AssetRequests.Add(req); | ||
170 | } | ||
171 | } | ||
172 | } | ||
173 | } | ||
174 | } | ||
175 | |||
176 | // TODO: unused | ||
177 | // private void RunAssetQueue() | ||
178 | // { | ||
179 | // while (true) | ||
180 | // { | ||
181 | // try | ||
182 | // { | ||
183 | // ProcessAssetQueue(); | ||
184 | // Thread.Sleep(500); | ||
185 | // } | ||
186 | // catch (Exception) | ||
187 | // { | ||
188 | // // m_log.Error("[ASSET CACHE]: " + e.ToString()); | ||
189 | // } | ||
190 | // } | ||
191 | // } | ||
192 | |||
193 | // TODO: unused | ||
194 | // /// <summary> | ||
195 | // /// Process the asset queue which sends packets directly back to the client. | ||
196 | // /// </summary> | ||
197 | // private void ProcessAssetQueue() | ||
198 | // { | ||
199 | // //should move the asset downloading to a module, like has been done with texture downloading | ||
200 | // if (AssetRequests.Count == 0) | ||
201 | // { | ||
202 | // //no requests waiting | ||
203 | // return; | ||
204 | // } | ||
205 | // // if less than 5, do all of them | ||
206 | // int num = Math.Min(5, AssetRequests.Count); | ||
207 | |||
208 | // AssetRequest req; | ||
209 | // for (int i = 0; i < num; i++) | ||
210 | // { | ||
211 | // req = (AssetRequest)AssetRequests[i]; | ||
212 | // //Console.WriteLine("sending asset " + req.RequestAssetID); | ||
213 | // TransferInfoPacket Transfer = new TransferInfoPacket(); | ||
214 | // Transfer.TransferInfo.ChannelType = 2; | ||
215 | // Transfer.TransferInfo.Status = 0; | ||
216 | // Transfer.TransferInfo.TargetType = 0; | ||
217 | // if (req.AssetRequestSource == 2) | ||
218 | // { | ||
219 | // Transfer.TransferInfo.Params = new byte[20]; | ||
220 | // Array.Copy(req.RequestAssetID.GetBytes(), 0, Transfer.TransferInfo.Params, 0, 16); | ||
221 | // int assType = (int)req.AssetInf.Type; | ||
222 | // Array.Copy(Helpers.IntToBytes(assType), 0, Transfer.TransferInfo.Params, 16, 4); | ||
223 | // } | ||
224 | // else if (req.AssetRequestSource == 3) | ||
225 | // { | ||
226 | // Transfer.TransferInfo.Params = req.Params; | ||
227 | // // Transfer.TransferInfo.Params = new byte[100]; | ||
228 | // //Array.Copy(req.RequestUser.AgentId.GetBytes(), 0, Transfer.TransferInfo.Params, 0, 16); | ||
229 | // //Array.Copy(req.RequestUser.SessionId.GetBytes(), 0, Transfer.TransferInfo.Params, 16, 16); | ||
230 | // } | ||
231 | // Transfer.TransferInfo.Size = (int)req.AssetInf.Data.Length; | ||
232 | // Transfer.TransferInfo.TransferID = req.TransferRequestID; | ||
233 | // req.RequestUser.OutPacket(Transfer, ThrottleOutPacketType.Asset); | ||
234 | |||
235 | // if (req.NumPackets == 1) | ||
236 | // { | ||
237 | // TransferPacketPacket TransferPacket = new TransferPacketPacket(); | ||
238 | // TransferPacket.TransferData.Packet = 0; | ||
239 | // TransferPacket.TransferData.ChannelType = 2; | ||
240 | // TransferPacket.TransferData.TransferID = req.TransferRequestID; | ||
241 | // TransferPacket.TransferData.Data = req.AssetInf.Data; | ||
242 | // TransferPacket.TransferData.Status = 1; | ||
243 | // req.RequestUser.OutPacket(TransferPacket, ThrottleOutPacketType.Asset); | ||
244 | // } | ||
245 | // else | ||
246 | // { | ||
247 | // int processedLength = 0; | ||
248 | // // libsecondlife hardcodes 1500 as the maximum data chunk size | ||
249 | // int maxChunkSize = 1250; | ||
250 | // int packetNumber = 0; | ||
251 | |||
252 | // while (processedLength < req.AssetInf.Data.Length) | ||
253 | // { | ||
254 | // TransferPacketPacket TransferPacket = new TransferPacketPacket(); | ||
255 | // TransferPacket.TransferData.Packet = packetNumber; | ||
256 | // TransferPacket.TransferData.ChannelType = 2; | ||
257 | // TransferPacket.TransferData.TransferID = req.TransferRequestID; | ||
258 | |||
259 | // int chunkSize = Math.Min(req.AssetInf.Data.Length - processedLength, maxChunkSize); | ||
260 | // byte[] chunk = new byte[chunkSize]; | ||
261 | // Array.Copy(req.AssetInf.Data, processedLength, chunk, 0, chunk.Length); | ||
262 | |||
263 | // TransferPacket.TransferData.Data = chunk; | ||
264 | |||
265 | // // 0 indicates more packets to come, 1 indicates last packet | ||
266 | // if (req.AssetInf.Data.Length - processedLength > maxChunkSize) | ||
267 | // { | ||
268 | // TransferPacket.TransferData.Status = 0; | ||
269 | // } | ||
270 | // else | ||
271 | // { | ||
272 | // TransferPacket.TransferData.Status = 1; | ||
273 | // } | ||
274 | |||
275 | // req.RequestUser.OutPacket(TransferPacket, ThrottleOutPacketType.Asset); | ||
276 | |||
277 | // processedLength += chunkSize; | ||
278 | // packetNumber++; | ||
279 | // } | ||
280 | // } | ||
281 | // } | ||
282 | |||
283 | // //remove requests that have been completed | ||
284 | // for (int i = 0; i < num; i++) | ||
285 | // { | ||
286 | // AssetRequests.RemoveAt(0); | ||
287 | // } | ||
288 | // } | ||
289 | |||
290 | /// <summary> | ||
291 | /// Calculate the number of packets required to send the asset to the client. | ||
292 | /// </summary> | ||
293 | /// <param name="data"></param> | ||
294 | /// <returns></returns> | ||
295 | private int CalculateNumPackets(byte[] data) | ||
296 | { | ||
297 | const uint m_maxPacketSize = 600; | ||
298 | int numPackets = 1; | ||
299 | |||
300 | if (data.LongLength > m_maxPacketSize) | ||
301 | { | ||
302 | // over max number of bytes so split up file | ||
303 | long restData = data.LongLength - m_maxPacketSize; | ||
304 | int restPackets = (int)((restData + m_maxPacketSize - 1) / m_maxPacketSize); | ||
305 | numPackets += restPackets; | ||
306 | } | ||
307 | |||
308 | return numPackets; | ||
309 | } | ||
310 | |||
311 | public class AssetRequest | ||
312 | { | ||
313 | public IClientAPI RequestUser; | ||
314 | public LLUUID RequestAssetID; | ||
315 | public AssetBase AssetInf; | ||
316 | public AssetBase ImageInfo; | ||
317 | public LLUUID TransferRequestID; | ||
318 | public long DataPointer = 0; | ||
319 | public int NumPackets = 0; | ||
320 | public int PacketCounter = 0; | ||
321 | public bool IsTextureRequest; | ||
322 | public byte AssetRequestSource = 2; | ||
323 | public byte[] Params = null; | ||
324 | //public bool AssetInCache; | ||
325 | //public int TimeRequested; | ||
326 | public int DiscardLevel = -1; | ||
327 | |||
328 | public AssetRequest() | ||
329 | { | ||
330 | } | ||
331 | } | ||
332 | } | ||
333 | } \ No newline at end of file | ||