for SH-3074: clear ghost and stale texture fetching requests in time

indra/newview/lltexturefetch.cpp

@@ -845,6 +845,8 @@ void LLTextureFetchWorker::startWork(S32 param)
 // Called from LLWorkerThread::processRequest()
 bool LLTextureFetchWorker::doWork(S32 param)
 {
+	static const F32 FETCHING_TIMEOUT = 120.f;//seconds
+
 	LLMutexLock lock(&mWorkMutex);
 
 	if ((mFetcher->isQuitting() || getFlags(LLWorkerClass::WCF_DELETE_REQUESTED)))
@@ -1187,6 +1189,8 @@ bool LLTextureFetchWorker::doWork(S32 param)
 			bool res = false;
 			if (!mUrl.empty())
 			{
+				mRequestedTimer.reset();
+
 				mLoaded = FALSE;
 				mGetStatus = 0;
 				mGetReason.clear();
@@ -1345,6 +1349,13 @@ bool LLTextureFetchWorker::doWork(S32 param)
 		}
 		else
 		{
+			if(FETCHING_TIMEOUT < mRequestedTimer.getElapsedTimeF32())
+			{
+				//timeout, abort.
+				mState = DONE;
+				return true;
+			}
+
 			setPriority(LLWorkerThread::PRIORITY_LOW | mWorkPriority);
 			return false;
 		}

indra/newview/llviewertexture.cpp

@@ -2129,6 +2129,17 @@ bool LLViewerFetchedTexture::updateFetch()
 	return mIsFetching ? true : false;
 }
 
+void LLViewerFetchedTexture::forceToDeleteRequest()
+{
+	if (mHasFetcher)
+	{
+		LLAppViewer::getTextureFetch()->deleteRequest(getID(), true);
+		mHasFetcher = FALSE;
+		mIsFetching = FALSE ;
+		resetTextureStats();
+	}
+}
+
 void LLViewerFetchedTexture::setIsMissingAsset()
 {
 	if (mUrl.empty())

indra/newview/llviewertexture.h

@@ -490,6 +490,7 @@ public:
 	BOOL        hasFetcher() const { return mHasFetcher;}
 	void        setCanUseHTTP(bool can_use_http) {mCanUseHTTP = can_use_http;}
 
+	void        forceToDeleteRequest();
 protected:
 	/*virtual*/ void switchToCachedImage();
 	S32 getCurrentDiscardLevelForFetching() ;

indra/newview/llviewertexturelist.cpp

@@ -58,6 +58,7 @@
 #include "pipeline.h"
 #include "llappviewer.h"
 #include "llxuiparser.h"
+#include "llagent.h"
 
 ////////////////////////////////////////////////////////////////////////////
 
@@ -597,6 +598,12 @@ static LLFastTimer::DeclareTimer FTM_IMAGE_STATS("Stats");
 
 void LLViewerTextureList::updateImages(F32 max_time)
 {
+	if(gAgent.getTeleportState() != LLAgent::TELEPORT_NONE)
+	{
+		clearFetchingRequests();
+		return;
+	}
+
 	LLAppViewer::getTextureFetch()->setTextureBandwidth(LLViewerStats::getInstance()->mTextureKBitStat.getMeanPerSec());
 
 	LLViewerStats::getInstance()->mNumImagesStat.addValue(sNumImages);
@@ -659,6 +666,24 @@ void LLViewerTextureList::updateImages(F32 max_time)
 	}
 }
 
+void LLViewerTextureList::clearFetchingRequests()
+{
+	if (LLAppViewer::getTextureFetch()->getNumRequests() == 0)
+	{
+		return;
+	}
+
+	for (image_priority_list_t::iterator iter = mImageList.begin();
+		 iter != mImageList.end(); ++iter)
+	{
+		LLViewerFetchedTexture* image = *iter;
+		if(image->hasFetcher())
+		{
+			image->forceToDeleteRequest() ;
+		}
+	}
+}
+
 void LLViewerTextureList::updateImagesDecodePriorities()
 {
 	// Update the decode priority for N images each frame

indra/newview/llviewertexturelist.h

@@ -164,6 +164,8 @@ private:
 	// Implemented in header in case someone changes default params above. JC
 	LLViewerFetchedTexture* getImageFromHost(const LLUUID& image_id, LLHost host)
 	{ return getImage(image_id, TRUE, LLViewerTexture::BOOST_NONE, LLViewerTexture::LOD_TEXTURE, 0, 0, host); }
+	
+	void clearFetchingRequests();
 
 public:
 	typedef std::set<LLPointer<LLViewerFetchedTexture> > image_list_t;