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-rw-r--r--OpenSim/Region/CoreModules/Asset/FlotsamAssetCache.cs85
1 files changed, 49 insertions, 36 deletions
diff --git a/OpenSim/Region/CoreModules/Asset/FlotsamAssetCache.cs b/OpenSim/Region/CoreModules/Asset/FlotsamAssetCache.cs
index 389fb7b..127ca1d 100644
--- a/OpenSim/Region/CoreModules/Asset/FlotsamAssetCache.cs
+++ b/OpenSim/Region/CoreModules/Asset/FlotsamAssetCache.cs
@@ -257,53 +257,66 @@ namespace Flotsam.RegionModules.AssetCache
257 257
258 private void UpdateFileCache(string key, AssetBase asset) 258 private void UpdateFileCache(string key, AssetBase asset)
259 { 259 {
260 string filename = GetFileName(asset.ID); 260 // TODO: Spawn this off to some seperate thread to do the actual writing
261 261 if (asset != null)
262 try
263 { 262 {
264 // If the file is already cached, don't cache it, just touch it so access time is updated 263 string filename = GetFileName(key);
265 if (File.Exists(filename)) 264
266 { 265 try
267 File.SetLastAccessTime(filename, DateTime.Now);
268 }
269 else
270 { 266 {
271 // Once we start writing, make sure we flag that we're writing 267 // If the file is already cached, don't cache it, just touch it so access time is updated
272 // that object to the cache so that we don't try to write the 268 if (File.Exists(filename))
273 // same file multiple times.
274 lock (m_CurrentlyWriting)
275 { 269 {
276#if WAIT_ON_INPROGRESS_REQUESTS 270 // We don't really want to know about sharing
277 if (m_CurrentlyWriting.ContainsKey(filename)) 271 // violations here. If the file is locked, then
272 // the other thread has updated the time for us.
273 try
278 { 274 {
279 return; 275 File.SetLastAccessTime(filename, DateTime.Now);
280 } 276 }
281 else 277 catch
282 {
283 m_CurrentlyWriting.Add(filename, new ManualResetEvent(false));
284 }
285
286#else
287 if (m_CurrentlyWriting.Contains(filename))
288 { 278 {
289 return;
290 } 279 }
291 else 280 } else {
281
282 // Once we start writing, make sure we flag that we're writing
283 // that object to the cache so that we don't try to write the
284 // same file multiple times.
285 lock (m_CurrentlyWriting)
292 { 286 {
293 m_CurrentlyWriting.Add(filename); 287#if WAIT_ON_INPROGRESS_REQUESTS
294 } 288 if (m_CurrentlyWriting.ContainsKey(filename))
289 {
290 return;
291 }
292 else
293 {
294 m_CurrentlyWriting.Add(filename, new ManualResetEvent(false));
295 }
296
297#else
298 if (m_CurrentlyWriting.Contains(filename))
299 {
300 return;
301 }
302 else
303 {
304 m_CurrentlyWriting.Add(filename);
305 }
295#endif 306#endif
296 }
297 307
298 Util.FireAndForget( 308 }
299 delegate { WriteFileCache(filename, asset); }); 309
310 Util.FireAndForget(
311 delegate { WriteFileCache(filename, asset); });
312 }
313 }
314 catch (Exception e)
315 {
316 m_log.ErrorFormat(
317 "[FLOTSAM ASSET CACHE]: Failed to update cache for asset {0}. Exception {1} {2}",
318 asset.ID, e.Message, e.StackTrace);
300 } 319 }
301 }
302 catch (Exception e)
303 {
304 m_log.ErrorFormat(
305 "[FLOTSAM ASSET CACHE]: Failed to update cache for asset {0}. Exception {1} {2}",
306 asset.ID, e.Message, e.StackTrace);
307 } 320 }
308 } 321 }
309 322