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authorCharles Krinke2008-05-27 13:40:00 +0000
committerCharles Krinke2008-05-27 13:40:00 +0000
commit2cea74181ac01574c36dae97d8140f003d69e68c (patch)
tree714bb575921bf4a7c4f04198613ef277cd535066 /OpenSim/Framework/Communications/Cache
parentfixes a CTB when IRCBridgeModule is not configured. (diff)
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Thank you very much, Xantor for a patch that:
If a request is made for an asset which is not in the cache yet, but has already been requested by something else, queue up the callbacks on that requester instead of swamping the asset server with multiple requests for the same asset.
Diffstat (limited to 'OpenSim/Framework/Communications/Cache')
-rw-r--r--OpenSim/Framework/Communications/Cache/AssetCache.cs35
1 files changed, 34 insertions, 1 deletions
diff --git a/OpenSim/Framework/Communications/Cache/AssetCache.cs b/OpenSim/Framework/Communications/Cache/AssetCache.cs
index 3ae18f1..feac65a 100644
--- a/OpenSim/Framework/Communications/Cache/AssetCache.cs
+++ b/OpenSim/Framework/Communications/Cache/AssetCache.cs
@@ -248,6 +248,12 @@ namespace OpenSim.Framework.Communications.Cache
248 { 248 {
249 //m_log.DebugFormat("[ASSET CACHE]: Requesting {0} {1}", isTexture ? "texture" : "asset", assetId); 249 //m_log.DebugFormat("[ASSET CACHE]: Requesting {0} {1}", isTexture ? "texture" : "asset", assetId);
250 250
251
252 // Xantor 20080526:
253 // if a request is made for an asset which is not in the cache yet, but has already been requested by
254 // something else, queue up the callbacks on that requestor instead of swamping the assetserver
255 // with multiple requests for the same asset.
256
251 AssetBase asset; 257 AssetBase asset;
252 258
253 if (TryGetCachedAsset(assetId, out asset)) 259 if (TryGetCachedAsset(assetId, out asset))
@@ -257,9 +263,33 @@ namespace OpenSim.Framework.Communications.Cache
257 else 263 else
258 { 264 {
259#if DEBUG 265#if DEBUG
260 //m_log.DebugFormat("[ASSET CACHE]: Adding request for {0} {1}", isTexture ? "texture" : "asset", assetId); 266 // m_log.DebugFormat("[ASSET CACHE]: Adding request for {0} {1}", isTexture ? "texture" : "asset", assetId);
261#endif 267#endif
268
269
270 NewAssetRequest req = new NewAssetRequest(assetId, callback);
271 AssetRequestsList requestList;
272
273 lock (RequestLists)
274 {
275 if (RequestLists.TryGetValue(assetId, out requestList)) // do we already have a request pending?
276 {
277 // m_log.DebugFormat("[ASSET CACHE]: Intercepted Duplicate request for {0} {1}", isTexture ? "texture" : "asset", assetId);
278 // add to callbacks for this assetId
279 RequestLists[assetId].Requests.Add(req);
280 }
281 else
282 {
283 // m_log.DebugFormat("[ASSET CACHE]: Adding request for {0} {1}", isTexture ? "texture" : "asset", assetId);
284 requestList = new AssetRequestsList(assetId);
285 RequestLists.Add(assetId, requestList);
286 requestList.Requests.Add(req);
287 m_assetServer.RequestAsset(assetId, isTexture);
288 }
289 }
290
262 291
292 /* Old code doesn't handle duplicate requests right
263 NewAssetRequest req = new NewAssetRequest(assetId, callback); 293 NewAssetRequest req = new NewAssetRequest(assetId, callback);
264 294
265 // Make sure we always have a request list to which to add the asset 295 // Make sure we always have a request list to which to add the asset
@@ -278,6 +308,7 @@ namespace OpenSim.Framework.Communications.Cache
278 requestList.Requests.Add(req); 308 requestList.Requests.Add(req);
279 309
280 m_assetServer.RequestAsset(assetId, isTexture); 310 m_assetServer.RequestAsset(assetId, isTexture);
311 */
281 } 312 }
282 } 313 }
283 314
@@ -447,6 +478,8 @@ namespace OpenSim.Framework.Communications.Cache
447 478
448 foreach (NewAssetRequest req in theseRequests) 479 foreach (NewAssetRequest req in theseRequests)
449 { 480 {
481 // Xantor 20080526 are we really calling all the callbacks if multiple queued for 1 request? -- Yes, checked
482 // m_log.DebugFormat("[ASSET CACHE]: Callback for asset {0}", asset.FullID);
450 req.Callback(asset.FullID, asset); 483 req.Callback(asset.FullID, asset);
451 } 484 }
452 } 485 }