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authorAnsariel <ansariel.hiller@phoenixviewer.com>2024-05-22 19:04:52 +0200
committerAnsariel <ansariel.hiller@phoenixviewer.com>2024-05-22 19:04:52 +0200
commit1b67dd855c41f5a0cda7ec2a68d98071986ca703 (patch)
treeab243607f74f78200787bba5b9b88f07ef1b966f /indra/newview/lltexturefetch.cpp
parent6d6eabca44d08d5b97bfe3e941d2b9687c2246ea (diff)
parente1623bb276f83a43ce7a197e388720c05bdefe61 (diff)
Merge remote-tracking branch 'origin/main' into DRTVWR-600-maint-A
# Conflicts: # autobuild.xml # indra/cmake/CMakeLists.txt # indra/cmake/GoogleMock.cmake # indra/llaudio/llaudioengine_fmodstudio.cpp # indra/llaudio/llaudioengine_fmodstudio.h # indra/llaudio/lllistener_fmodstudio.cpp # indra/llaudio/lllistener_fmodstudio.h # indra/llaudio/llstreamingaudio_fmodstudio.cpp # indra/llaudio/llstreamingaudio_fmodstudio.h # indra/llcharacter/llmultigesture.cpp # indra/llcharacter/llmultigesture.h # indra/llimage/llimage.cpp # indra/llimage/llimagepng.cpp # indra/llimage/llimageworker.cpp # indra/llimage/tests/llimageworker_test.cpp # indra/llmessage/tests/llmockhttpclient.h # indra/llprimitive/llgltfmaterial.h # indra/llrender/llfontfreetype.cpp # indra/llui/llcombobox.cpp # indra/llui/llfolderview.cpp # indra/llui/llfolderviewmodel.h # indra/llui/lllineeditor.cpp # indra/llui/lllineeditor.h # indra/llui/lltextbase.cpp # indra/llui/lltextbase.h # indra/llui/lltexteditor.cpp # indra/llui/lltextvalidate.cpp # indra/llui/lltextvalidate.h # indra/llui/lluictrl.h # indra/llui/llview.cpp # indra/llwindow/llwindowmacosx.cpp # indra/newview/app_settings/settings.xml # indra/newview/llappearancemgr.cpp # indra/newview/llappearancemgr.h # indra/newview/llavatarpropertiesprocessor.cpp # indra/newview/llavatarpropertiesprocessor.h # indra/newview/llbreadcrumbview.cpp # indra/newview/llbreadcrumbview.h # indra/newview/llbreastmotion.cpp # indra/newview/llbreastmotion.h # indra/newview/llconversationmodel.h # indra/newview/lldensityctrl.cpp # indra/newview/lldensityctrl.h # indra/newview/llface.inl # indra/newview/llfloatereditsky.cpp # indra/newview/llfloatereditwater.cpp # indra/newview/llfloateremojipicker.h # indra/newview/llfloaterimsessiontab.cpp # indra/newview/llfloaterprofiletexture.cpp # indra/newview/llfloaterprofiletexture.h # indra/newview/llgesturemgr.cpp # indra/newview/llgesturemgr.h # indra/newview/llimpanel.cpp # indra/newview/llimpanel.h # indra/newview/llinventorybridge.cpp # indra/newview/llinventorybridge.h # indra/newview/llinventoryclipboard.cpp # indra/newview/llinventoryclipboard.h # indra/newview/llinventoryfunctions.cpp # indra/newview/llinventoryfunctions.h # indra/newview/llinventorygallery.cpp # indra/newview/lllistbrowser.cpp # indra/newview/lllistbrowser.h # indra/newview/llpanelobjectinventory.cpp # indra/newview/llpanelprofile.cpp # indra/newview/llpanelprofile.h # indra/newview/llpreviewgesture.cpp # indra/newview/llsavedsettingsglue.cpp # indra/newview/llsavedsettingsglue.h # indra/newview/lltooldraganddrop.cpp # indra/newview/llurllineeditorctrl.cpp # indra/newview/llvectorperfoptions.cpp # indra/newview/llvectorperfoptions.h # indra/newview/llviewerparceloverlay.cpp # indra/newview/llviewertexlayer.cpp # indra/newview/llviewertexturelist.cpp # indra/newview/macmain.h # indra/test/test.cpp
Diffstat (limited to 'indra/newview/lltexturefetch.cpp')
-rw-r--r--indra/newview/lltexturefetch.cpp7476
1 files changed, 3738 insertions, 3738 deletions
diff --git a/indra/newview/lltexturefetch.cpp b/indra/newview/lltexturefetch.cpp
index 5fd3fb6e29..ea04d08980 100644
--- a/indra/newview/lltexturefetch.cpp
+++ b/indra/newview/lltexturefetch.cpp
@@ -1,3738 +1,3738 @@
-/**
- * @file lltexturefetch.cpp
- * @brief Object which fetches textures from the cache and/or network
- *
- * $LicenseInfo:firstyear=2000&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2012-2014, Linden Research, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
- * $/LicenseInfo$
- */
-
-#include "llviewerprecompiledheaders.h"
-
-#include <iostream>
-#include <map>
-#include <algorithm>
-
-#include "lltexturefetch.h"
-
-#include "lldir.h"
-#include "llhttpconstants.h"
-#include "llimage.h"
-#include "llimagej2c.h"
-#include "llimageworker.h"
-#include "llworkerthread.h"
-#include "message.h"
-
-#include "llagent.h"
-#include "lltexturecache.h"
-#include "llviewercontrol.h"
-#include "llviewertexturelist.h"
-#include "llviewertexture.h"
-#include "llviewerregion.h"
-#include "llviewerstats.h"
-#include "llviewerstatsrecorder.h"
-#include "llviewerassetstats.h"
-#include "llworld.h"
-#include "llsdparam.h"
-#include "llsdutil.h"
-#include "llstartup.h"
-
-#include "httprequest.h"
-#include "httphandler.h"
-#include "httpresponse.h"
-#include "bufferarray.h"
-#include "bufferstream.h"
-#include "llcorehttputil.h"
-#include "llhttpretrypolicy.h"
-
-LLTrace::CountStatHandle<F64> LLTextureFetch::sCacheHit("texture_cache_hit");
-LLTrace::CountStatHandle<F64> LLTextureFetch::sCacheAttempt("texture_cache_attempt");
-LLTrace::EventStatHandle<LLUnit<F32, LLUnits::Percent> > LLTextureFetch::sCacheHitRate("texture_cache_hits");
-
-LLTrace::SampleStatHandle<F32Seconds> LLTextureFetch::sCacheReadLatency("texture_cache_read_latency");
-LLTrace::SampleStatHandle<F32Seconds> LLTextureFetch::sTexDecodeLatency("texture_decode_latency");
-LLTrace::SampleStatHandle<F32Seconds> LLTextureFetch::sCacheWriteLatency("texture_write_latency");
-LLTrace::SampleStatHandle<F32Seconds> LLTextureFetch::sTexFetchLatency("texture_fetch_latency");
-
-LLTextureFetchTester* LLTextureFetch::sTesterp = NULL ;
-const std::string sTesterName("TextureFetchTester");
-
-//////////////////////////////////////////////////////////////////////////////
-//
-// Introduction
-//
-// This is an attempt to document what's going on in here after-the-fact.
-// It's a sincere attempt to be accurate but there will be mistakes.
-//
-//
-// Purpose
-//
-// What is this module trying to do? It accepts requests to load textures
-// at a given priority and discard level and notifies the caller when done
-// (successfully or not). Additional constraints are:
-//
-// * Support a local texture cache. Don't hit network when possible
-// to avoid it.
-// * Use UDP or HTTP as directed or as fallback. HTTP is tried when
-// not disabled and a URL is available. UDP when a URL isn't
-// available or HTTP attempts fail.
-// * Asynchronous (using threads). Main thread is not to be blocked or
-// burdened.
-// * High concurrency. Many requests need to be in-flight and at various
-// stages of completion.
-// * Tolerate frequent re-prioritizations of requests. Priority is
-// a reflection of a camera's viewpoint and as that viewpoint changes,
-// objects and textures become more and less relevant and that is
-// expressed at this level by priority changes and request cancelations.
-//
-// The caller interfaces that fall out of the above and shape the
-// implementation are:
-// * createRequest - Load j2c image via UDP or HTTP at given discard level and priority
-// * deleteRequest - Request removal of prior request
-// * getRequestFinished - Test if request is finished returning data to caller
-// * updateRequestPriority - Change priority of existing request
-// * getFetchState - Retrieve progress on existing request
-//
-// Everything else in here is mostly plumbing, metrics and debug.
-//
-//
-// The Work Queue
-//
-// The two central classes are LLTextureFetch and LLTextureFetchWorker.
-// LLTextureFetch combines threading with a priority queue of work
-// requests. The priority queue is sorted by a U32 priority derived
-// from the F32 priority in the APIs. The *only* work request that
-// receives service time by this thread is the highest priority
-// request. All others wait until it is complete or a dynamic priority
-// change has re-ordered work.
-//
-// LLTextureFetchWorker implements the work request and is 1:1 with
-// texture fetch requests. Embedded in each is a state machine that
-// walks it through the cache, HTTP, UDP, image decode and retry
-// steps of texture acquisition.
-//
-//
-// Threads
-//
-// Several threads are actively invoking code in this module. They
-// include:
-//
-// 1. Tmain Main thread of execution
-// 2. Ttf LLTextureFetch's worker thread provided by LLQueuedThread
-// 3. Tcurl LLCurl's worker thread (should disappear over time)
-// 4. Ttc LLTextureCache's worker thread
-// 5. Tid Image decoder's worker thread
-// 6. Thl HTTP library's worker thread
-//
-//
-// Mutexes/Condition Variables
-//
-// 1. Mt Mutex defined for LLThread's condition variable (base class of
-// LLTextureFetch)
-// 2. Ct Condition variable for LLThread and used by lock/unlockData().
-// 3. Mwtd Special LLWorkerThread mutex used for request deletion
-// operations (base class of LLTextureFetch)
-// 4. Mfq LLTextureFetch's mutex covering request and command queue
-// data.
-// 5. Mfnq LLTextureFetch's mutex covering udp and http request
-// queue data.
-// 6. Mwc Mutex covering LLWorkerClass's members (base class of
-// LLTextureFetchWorker). One per request.
-// 7. Mw LLTextureFetchWorker's mutex. One per request.
-//
-//
-// Lock Ordering Rules
-//
-// Not an exhaustive list but shows the order of lock acquisition
-// needed to prevent deadlocks. 'A < B' means acquire 'A' before
-// acquiring 'B'.
-//
-// 1. Mw < Mfnq
-// (there are many more...)
-//
-//
-// Method and Member Definitions
-//
-// With the above, we'll try to document what threads can call what
-// methods (using T* for any), what locks must be held on entry and
-// are taken out during execution and what data is covered by which
-// lock (if any). This latter category will be especially prone to
-// error so be skeptical.
-//
-// A line like: "// Locks: M<xxx>" indicates a method that must
-// be invoked by a caller holding the 'M<xxx>' lock. Similarly,
-// "// Threads: T<xxx>" means that a caller should be running in
-// the indicated thread.
-//
-// For data members, a trailing comment like "// M<xxx>" means that
-// the data member is covered by the specified lock. Absence of a
-// comment can mean the member is unlocked or that I didn't bother
-// to do the archaeology. In the case of LLTextureFetchWorker,
-// most data members added by the leaf class are actually covered
-// by the Mw lock. You may also see "// T<xxx>" which means that
-// the member's usage is restricted to one thread (except for
-// perhaps construction and destruction) and so explicit locking
-// isn't used.
-//
-// In code, a trailing comment like "// [-+]M<xxx>" indicates a
-// lock acquision or release point.
-//
-//
-// Worker Lifecycle
-//
-// The threading and responder model makes it very likely that
-// other components are holding on to a pointer to a worker request.
-// So, uncoordinated deletions of requests is a guarantee of memory
-// corruption in a short time. So destroying a request involves
-// invocations's of LLQueuedThread/LLWorkerThread's abort/stop
-// logic that removes workers and puts them ona delete queue for
-// 2-phase destruction. That second phase is deferrable by calls
-// to deleteOK() which only allow final destruction (via dtor)
-// once deleteOK has determined that the request is in a safe
-// state.
-//
-//
-// Worker State Machine
-//
-// "doWork" will be executed for a given worker on its respective
-// LLQueuedThread. If doWork returns true, the worker is treated
-// as completed. If doWork returns false, the worker will be
-// put on the back of the work queue at the start of the next iteration
-// of the mainloop. If a worker is waiting on a resource, it should
-// return false as soon as possible and not block to avoid starving
-// other workers of cpu cycles.
-//
-
-
-
-//////////////////////////////////////////////////////////////////////////////
-
-// Tuning/Parameterization Constants
-
-static const S32 HTTP_PIPE_REQUESTS_HIGH_WATER = 100; // Maximum requests to have active in HTTP (pipelined)
-static const S32 HTTP_PIPE_REQUESTS_LOW_WATER = 50; // Active level at which to refill
-static const S32 HTTP_NONPIPE_REQUESTS_HIGH_WATER = 40;
-static const S32 HTTP_NONPIPE_REQUESTS_LOW_WATER = 20;
-
-// BUG-3323/SH-4375
-// *NOTE: This is a heuristic value. Texture fetches have a habit of using a
-// value of 32MB to indicate 'get the rest of the image'. Certain ISPs and
-// network equipment get confused when they see this in a Range: header. So,
-// if the request end is beyond this value, we issue an open-ended Range:
-// request (e.g. 'Range: <start>-') which seems to fix the problem.
-static const S32 HTTP_REQUESTS_RANGE_END_MAX = 20000000;
-
-// stop after 720 seconds, might be overkill, but cap request can keep going forever.
-static const S32 MAX_CAP_MISSING_RETRIES = 720;
-static const S32 CAP_MISSING_EXPIRATION_DELAY = 1; // seconds
-
-//////////////////////////////////////////////////////////////////////////////
-namespace
-{
- // The NoOpDeletor is used when passing certain objects (the LLTextureFetchWorker)
- // in a smart pointer below for passage into
- // the LLCore::Http libararies. When the smart pointer is destroyed, no
- // action will be taken since we do not in these cases want the object to
- // be destroyed at the end of the call.
- //
- // *NOTE$: Yes! It is "Deletor"
- // http://english.stackexchange.com/questions/4733/what-s-the-rule-for-adding-er-vs-or-when-nouning-a-verb
- // "delete" derives from Latin "deletus"
- void NoOpDeletor(LLCore::HttpHandler *)
- { /*NoOp*/ }
-}
-
-static const char* e_state_name[] =
-{
- "INVALID",
- "INIT",
- "LOAD_FROM_TEXTURE_CACHE",
- "CACHE_POST",
- "LOAD_FROM_NETWORK",
- "WAIT_HTTP_RESOURCE",
- "WAIT_HTTP_RESOURCE2",
- "SEND_HTTP_REQ",
- "WAIT_HTTP_REQ",
- "DECODE_IMAGE",
- "DECODE_IMAGE_UPDATE",
- "WRITE_TO_CACHE",
- "WAIT_ON_WRITE",
- "DONE"
-};
-
-// Log scope
-static const char * const LOG_TXT = "Texture";
-
-class LLTextureFetchWorker : public LLWorkerClass, public LLCore::HttpHandler
-
-{
- friend class LLTextureFetch;
-
-private:
- class CacheReadResponder : public LLTextureCache::ReadResponder
- {
- public:
-
- // Threads: Ttf
- CacheReadResponder(LLTextureFetch* fetcher, const LLUUID& id, LLImageFormatted* image)
- : mFetcher(fetcher), mID(id)
- {
- setImage(image);
- }
-
- // Threads: Ttc
- virtual void completed(bool success)
- {
- LL_PROFILE_ZONE_SCOPED;
- LLTextureFetchWorker* worker = mFetcher->getWorker(mID);
- if (worker)
- {
- worker->callbackCacheRead(success, mFormattedImage, mImageSize, mImageLocal);
- }
- }
- private:
- LLTextureFetch* mFetcher;
- LLUUID mID;
- };
-
- class CacheWriteResponder : public LLTextureCache::WriteResponder
- {
- public:
-
- // Threads: Ttf
- CacheWriteResponder(LLTextureFetch* fetcher, const LLUUID& id)
- : mFetcher(fetcher), mID(id)
- {
- }
-
- // Threads: Ttc
- virtual void completed(bool success)
- {
- LL_PROFILE_ZONE_SCOPED;
- LLTextureFetchWorker* worker = mFetcher->getWorker(mID);
- if (worker)
- {
- worker->callbackCacheWrite(success);
- }
- }
- private:
- LLTextureFetch* mFetcher;
- LLUUID mID;
- };
-
- class DecodeResponder : public LLImageDecodeThread::Responder
- {
- public:
-
- // Threads: Ttf
- DecodeResponder(LLTextureFetch* fetcher, const LLUUID& id, LLTextureFetchWorker* worker)
- : mFetcher(fetcher), mID(id)
- {
- }
-
- // Threads: Tid
- virtual void completed(bool success, LLImageRaw* raw, LLImageRaw* aux, U32 request_id)
- {
- LL_PROFILE_ZONE_SCOPED;
- LLTextureFetchWorker* worker = mFetcher->getWorker(mID);
- if (worker)
- {
- worker->callbackDecoded(success, raw, aux, request_id);
- }
- }
- private:
- LLTextureFetch* mFetcher;
- LLUUID mID;
- };
-
- struct Compare
- {
- // lhs < rhs
- bool operator()(const LLTextureFetchWorker* lhs, const LLTextureFetchWorker* rhs) const
- {
- // greater priority is "less"
- return lhs->mImagePriority > rhs->mImagePriority;
- }
- };
-
-public:
-
- // Threads: Ttf
- /*virtual*/ bool doWork(S32 param); // Called from LLWorkerThread::processRequest()
-
- // Threads: Ttf
- /*virtual*/ void finishWork(S32 param, bool completed); // called from finishRequest() (WORK THREAD)
-
- // Threads: Tmain
- /*virtual*/ bool deleteOK(); // called from update()
-
- ~LLTextureFetchWorker();
-
- // Threads: Ttf
- // Locks: Mw
- S32 callbackHttpGet(LLCore::HttpResponse * response,
- bool partial, bool success);
-
- // Threads: Ttc
- void callbackCacheRead(bool success, LLImageFormatted* image,
- S32 imagesize, bool islocal);
-
- // Threads: Ttc
- void callbackCacheWrite(bool success);
-
- // Threads: Tid
- void callbackDecoded(bool success, LLImageRaw* raw, LLImageRaw* aux, S32 decode_id);
-
- // Threads: T*
- void setGetStatus(LLCore::HttpStatus status, const std::string& reason)
- {
- LLMutexLock lock(&mWorkMutex);
-
- mGetStatus = status;
- mGetReason = reason;
- }
-
- void setCanUseHTTP(bool can_use_http) { mCanUseHTTP = can_use_http; }
- bool getCanUseHTTP() const { return mCanUseHTTP; }
-
- void setUrl(const std::string& url) { mUrl = url; }
-
- LLTextureFetch & getFetcher() { return *mFetcher; }
-
- // Inherited from LLCore::HttpHandler
- // Threads: Ttf
- virtual void onCompleted(LLCore::HttpHandle handle, LLCore::HttpResponse * response);
-
- enum e_state // mState
- {
- // *NOTE: Do not change the order/value of state variables, some code
- // depends upon specific ordering/adjacency.
-
- // NOTE: Affects LLTextureBar::draw in lltextureview.cpp (debug hack)
- INVALID = 0,
- INIT,
- LOAD_FROM_TEXTURE_CACHE,
- CACHE_POST,
- LOAD_FROM_NETWORK,
- WAIT_HTTP_RESOURCE, // Waiting for HTTP resources
- WAIT_HTTP_RESOURCE2, // Waiting for HTTP resources
- SEND_HTTP_REQ, // Commit to sending as HTTP
- WAIT_HTTP_REQ, // Request sent, wait for completion
- DECODE_IMAGE,
- DECODE_IMAGE_UPDATE,
- WRITE_TO_CACHE,
- WAIT_ON_WRITE,
- DONE
- };
-
-protected:
- LLTextureFetchWorker(LLTextureFetch* fetcher, FTType f_type,
- const std::string& url, const LLUUID& id, const LLHost& host,
- F32 priority, S32 discard, S32 size);
-
-private:
-
- // Threads: Tmain
- /*virtual*/ void startWork(S32 param); // called from addWork() (MAIN THREAD)
-
- // Threads: Tmain
- /*virtual*/ void endWork(S32 param, bool aborted); // called from doWork() (MAIN THREAD)
-
- // Locks: Mw
- void resetFormattedData();
-
- // get the relative priority of this worker (should map to max virtual size)
- F32 getImagePriority() const;
-
- // Locks: Mw
- void setImagePriority(F32 priority);
-
- // Locks: Mw (ctor invokes without lock)
- void setDesiredDiscard(S32 discard, S32 size);
-
- // Threads: T*
- // Locks: Mw
- bool insertPacket(S32 index, U8* data, S32 size);
-
- // Locks: Mw
- void clearPackets();
-
-
- // Locks: Mw
- void removeFromCache();
-
- // Threads: Ttf
- bool writeToCacheComplete();
-
- // Threads: Ttf
- void recordTextureStart(bool is_http);
-
- // Threads: Ttf
- void recordTextureDone(bool is_http, F64 byte_count);
-
- void lockWorkMutex() { mWorkMutex.lock(); }
- void unlockWorkMutex() { mWorkMutex.unlock(); }
-
- // Threads: Ttf
- // Locks: Mw
- bool acquireHttpSemaphore()
- {
- llassert(! mHttpHasResource);
- if (mFetcher->mHttpSemaphore >= mFetcher->mHttpHighWater)
- {
- return false;
- }
- mHttpHasResource = true;
- mFetcher->mHttpSemaphore++;
- return true;
- }
-
- // Threads: Ttf
- // Locks: Mw
- void releaseHttpSemaphore()
- {
- llassert(mHttpHasResource);
- mHttpHasResource = false;
- mFetcher->mHttpSemaphore--;
- llassert_always(mFetcher->mHttpSemaphore >= 0);
- }
-
-private:
- enum e_request_state // mSentRequest
- {
- UNSENT = 0,
- QUEUED = 1,
- SENT_SIM = 2
- };
- enum e_write_to_cache_state //mWriteToCacheState
- {
- NOT_WRITE = 0,
- CAN_WRITE = 1,
- SHOULD_WRITE = 2
- };
-
- e_state mState;
- void setState(e_state new_state);
- LLViewerRegion* getRegion();
-
- e_write_to_cache_state mWriteToCacheState;
- LLTextureFetch* mFetcher;
- LLPointer<LLImageFormatted> mFormattedImage;
- LLPointer<LLImageRaw> mRawImage,
- mAuxImage;
- FTType mFTType;
- LLUUID mID;
- LLHost mHost;
- std::string mUrl;
- U8 mType;
- F32 mImagePriority; // should map to max virtual size
- F32 mRequestedPriority;
- S32 mDesiredDiscard;
- S32 mSimRequestedDiscard;
- S32 mRequestedDiscard;
- S32 mLoadedDiscard;
- S32 mDecodedDiscard;
- LLFrameTimer mRequestedDeltaTimer;
- LLFrameTimer mFetchDeltaTimer;
- LLTimer mCacheReadTimer;
- LLTimer mDecodeTimer;
- LLTimer mCacheWriteTimer;
- LLTimer mFetchTimer;
- LLTimer mStateTimer;
- F32 mCacheReadTime; // time for cache read only
- F32 mDecodeTime; // time for decode only
- F32 mCacheWriteTime;
- F32 mFetchTime; // total time from req to finished fetch
- std::map<S32, F32> mStateTimersMap;
- F32 mSkippedStatesTime;
- LLTextureCache::handle_t mCacheReadHandle,
- mCacheWriteHandle;
- S32 mRequestedSize,
- mRequestedOffset,
- mDesiredSize,
- mFileSize,
- mCachedSize;
- e_request_state mSentRequest;
- handle_t mDecodeHandle;
- bool mLoaded;
- bool mDecoded;
- bool mWritten;
- bool mNeedsAux;
- bool mHaveAllData;
- bool mInLocalCache;
- bool mInCache;
- bool mCanUseHTTP;
- S32 mRetryAttempt;
- S32 mActiveCount;
- LLCore::HttpStatus mGetStatus;
- std::string mGetReason;
- LLAdaptiveRetryPolicy mFetchRetryPolicy;
- bool mCanUseCapability;
- LLTimer mRegionRetryTimer;
- S32 mRegionRetryAttempt;
- LLUUID mLastRegionId;
-
-
- // Work Data
- LLMutex mWorkMutex;
- struct PacketData
- {
- PacketData(U8* data, S32 size)
- : mData(data), mSize(size)
- {}
- ~PacketData() { clearData(); }
- void clearData() { delete[] mData; mData = NULL; }
-
- U8* mData;
- U32 mSize;
- };
- std::vector<PacketData*> mPackets;
- S32 mFirstPacket;
- S32 mLastPacket;
- U16 mTotalPackets;
- U8 mImageCodec;
-
- LLViewerAssetStats::duration_t mMetricsStartTime;
-
- LLCore::HttpHandle mHttpHandle; // Handle of any active request
- LLCore::BufferArray * mHttpBufferArray; // Refcounted pointer to response data
- S32 mHttpPolicyClass;
- bool mHttpActive; // Active request to http library
- U32 mHttpReplySize, // Actual received data size
- mHttpReplyOffset; // Actual received data offset
- bool mHttpHasResource; // Counts against Fetcher's mHttpSemaphore
-
- // State history
- U32 mCacheReadCount,
- mCacheWriteCount,
- mResourceWaitCount; // Requests entering WAIT_HTTP_RESOURCE2
-};
-
-//////////////////////////////////////////////////////////////////////////////
-
-// Cross-thread messaging for asset metrics.
-
-/**
- * @brief Base class for cross-thread requests made of the fetcher
- *
- * I believe the intent of the LLQueuedThread class was to
- * have these operations derived from LLQueuedThread::QueuedRequest
- * but the texture fetcher has elected to manage the queue
- * in its own manner. So these are free-standing objects which are
- * managed in simple FIFO order on the mCommands queue of the
- * LLTextureFetch object.
- *
- * What each represents is a simple command sent from an
- * outside thread into the TextureFetch thread to be processed
- * in order and in a timely fashion (though not an absolute
- * higher priority than other operations of the thread).
- * Each operation derives a new class from the base customizing
- * members, constructors and the doWork() method to effect
- * the command.
- *
- * The flow is one-directional. There are two global instances
- * of the LLViewerAssetStats collector, one for the main program's
- * thread pointed to by gViewerAssetStatsMain and one for the
- * TextureFetch thread pointed to by gViewerAssetStatsThread1.
- * Common operations has each thread recording metrics events
- * into the respective collector unconcerned with locking and
- * the state of any other thread. But when the agent moves into
- * a different region or the metrics timer expires and a report
- * needs to be sent back to the grid, messaging across threads
- * is required to distribute data and perform global actions.
- * In pseudo-UML, it looks like:
- *
- * @verbatim
- * Main Thread1
- * . .
- * . .
- * +-----+ .
- * | AM | .
- * +--+--+ .
- * +-------+ | .
- * | Main | +--+--+ .
- * | | | SRE |---. .
- * | Stats | +-----+ \ .
- * | | | \ (uuid) +-----+
- * | Coll. | +--+--+ `-------->| SR |
- * +-------+ | MSC | +--+--+
- * | ^ +-----+ |
- * | | (uuid) / . +-----+ (uuid)
- * | `--------' . | MSC |---------.
- * | . +-----+ |
- * | +-----+ . v
- * | | TE | . +-------+
- * | +--+--+ . | Thd1 |
- * | | . | |
- * | +-----+ . | Stats |
- * `--------->| RSC | . | |
- * +--+--+ . | Coll. |
- * | . +-------+
- * +--+--+ . |
- * | SME |---. . |
- * +-----+ \ . |
- * . \ (clone) +-----+ |
- * . `-------->| SM | |
- * . +--+--+ |
- * . | |
- * . +-----+ |
- * . | RSC |<--------'
- * . +-----+
- * . |
- * . +-----+
- * . | CP |--> HTTP POST
- * . +-----+
- * . .
- * . .
- *
- * Key:
- *
- * SRE - Set Region Enqueued. Enqueue a 'Set Region' command in
- * the other thread providing the new UUID of the region.
- * TFReqSetRegion carries the data.
- * SR - Set Region. New region UUID is sent to the thread-local
- * collector.
- * SME - Send Metrics Enqueued. Enqueue a 'Send Metrics' command
- * including an ownership transfer of a cloned LLViewerAssetStats.
- * TFReqSendMetrics carries the data.
- * SM - Send Metrics. Global metrics reporting operation. Takes
- * the cloned stats from the command, merges it with the
- * thread's local stats, converts to LLSD and sends it on
- * to the grid.
- * AM - Agent Moved. Agent has completed some sort of move to a
- * new region.
- * TE - Timer Expired. Metrics timer has expired (on the order
- * of 10 minutes).
- * CP - CURL Post
- * MSC - Modify Stats Collector. State change in the thread-local
- * collector. Typically a region change which affects the
- * global pointers used to find the 'current stats'.
- * RSC - Read Stats Collector. Extract collector data cloning it
- * (i.e. deep copy) when necessary.
- * @endverbatim
- *
- */
-class LLTextureFetch::TFRequest // : public LLQueuedThread::QueuedRequest
-{
-public:
- // Default ctors and assignment operator are correct.
-
- virtual ~TFRequest()
- {}
-
- // Patterned after QueuedRequest's method but expected behavior
- // is different. Always expected to complete on the first call
- // and work dispatcher will assume the same and delete the
- // request after invocation.
- virtual bool doWork(LLTextureFetch * fetcher) = 0;
-};
-
-namespace
-{
-
-/**
- * @brief Implements a 'Set Region' cross-thread command.
- *
- * When an agent moves to a new region, subsequent metrics need
- * to be binned into a new or existing stats collection in 1:1
- * relationship with the region. We communicate this region
- * change across the threads involved in the communication with
- * this message.
- *
- * Corresponds to LLTextureFetch::commandSetRegion()
- */
-class TFReqSetRegion : public LLTextureFetch::TFRequest
-{
-public:
- TFReqSetRegion(U64 region_handle)
- : LLTextureFetch::TFRequest(),
- mRegionHandle(region_handle)
- {}
- TFReqSetRegion & operator=(const TFReqSetRegion &); // Not defined
-
- virtual ~TFReqSetRegion()
- {}
-
- virtual bool doWork(LLTextureFetch * fetcher);
-
-public:
- const U64 mRegionHandle;
-};
-
-
-/**
- * @brief Implements a 'Send Metrics' cross-thread command.
- *
- * This is the big operation. The main thread gathers metrics
- * for a period of minutes into LLViewerAssetStats and other
- * objects then makes a snapshot of the data by cloning the
- * collector. This command transfers the clone, along with a few
- * additional arguments (UUIDs), handing ownership to the
- * TextureFetch thread. It then merges its own data into the
- * cloned copy, converts to LLSD and kicks off an HTTP POST of
- * the resulting data to the currently active metrics collector.
- *
- * Corresponds to LLTextureFetch::commandSendMetrics()
- */
-class TFReqSendMetrics : public LLTextureFetch::TFRequest
-{
-public:
- /**
- * Construct the 'Send Metrics' command to have the TextureFetch
- * thread add and log metrics data.
- *
- * @param caps_url URL of a "ViewerMetrics" Caps target
- * to receive the data. Does not have to
- * be associated with a particular region.
- *
- * @param session_id UUID of the agent's session.
- *
- * @param agent_id UUID of the agent. (Being pure here...)
- *
- * @param main_stats Pointer to a clone of the main thread's
- * LLViewerAssetStats data. Thread1 takes
- * ownership of the copy and disposes of it
- * when done.
- */
- TFReqSendMetrics(const std::string & caps_url,
- const LLUUID & session_id,
- const LLUUID & agent_id,
- LLSD& stats_sd);
- TFReqSendMetrics & operator=(const TFReqSendMetrics &); // Not defined
-
- virtual ~TFReqSendMetrics();
-
- virtual bool doWork(LLTextureFetch * fetcher);
-
-public:
- const std::string mCapsURL;
- const LLUUID mSessionID;
- const LLUUID mAgentID;
- LLSD mStatsSD;
-
-private:
- LLCore::HttpHandler::ptr_t mHandler;
-};
-
-/*
- * Examines the merged viewer metrics report and if found to be too long,
- * will attempt to truncate it in some reasonable fashion.
- *
- * @param max_regions Limit of regions allowed in report.
- *
- * @param metrics Full, merged viewer metrics report.
- *
- * @returns If data was truncated, returns true.
- */
-bool truncate_viewer_metrics(int max_regions, LLSD & metrics);
-
-} // end of anonymous namespace
-
-
-//////////////////////////////////////////////////////////////////////////////
-
-const char* sStateDescs[] = {
- "INVALID",
- "INIT",
- "LOAD_FROM_TEXTURE_CACHE",
- "CACHE_POST",
- "LOAD_FROM_NETWORK",
- "WAIT_HTTP_RESOURCE",
- "WAIT_HTTP_RESOURCE2",
- "SEND_HTTP_REQ",
- "WAIT_HTTP_REQ",
- "DECODE_IMAGE",
- "DECODE_IMAGE_UPDATE",
- "WRITE_TO_CACHE",
- "WAIT_ON_WRITE",
- "DONE"
-};
-
-const std::set<S32> LOGGED_STATES = { LLTextureFetchWorker::LOAD_FROM_TEXTURE_CACHE, LLTextureFetchWorker::LOAD_FROM_NETWORK,
- LLTextureFetchWorker::WAIT_HTTP_REQ, LLTextureFetchWorker::DECODE_IMAGE_UPDATE, LLTextureFetchWorker::WAIT_ON_WRITE };
-
-// static
-volatile bool LLTextureFetch::svMetricsDataBreak(true); // Start with a data break
-
-// called from MAIN THREAD
-
-LLTextureFetchWorker::LLTextureFetchWorker(LLTextureFetch* fetcher,
- FTType f_type, // Fetched image type
- const std::string& url, // Optional URL
- const LLUUID& id, // Image UUID
- const LLHost& host, // Simulator host
- F32 priority, // Priority
- S32 discard, // Desired discard
- S32 size) // Desired size
- : LLWorkerClass(fetcher, "TextureFetch"),
- LLCore::HttpHandler(),
- mState(INIT),
- mWriteToCacheState(NOT_WRITE),
- mFetcher(fetcher),
- mFTType(f_type),
- mID(id),
- mHost(host),
- mUrl(url),
- mImagePriority(priority),
- mRequestedPriority(0.f),
- mDesiredDiscard(-1),
- mSimRequestedDiscard(-1),
- mRequestedDiscard(-1),
- mLoadedDiscard(-1),
- mDecodedDiscard(-1),
- mCacheReadTime(0.f),
- mCacheWriteTime(0.f),
- mDecodeTime(0.f),
- mFetchTime(0.f),
- mCacheReadHandle(LLTextureCache::nullHandle()),
- mCacheWriteHandle(LLTextureCache::nullHandle()),
- mRequestedSize(0),
- mRequestedOffset(0),
- mDesiredSize(TEXTURE_CACHE_ENTRY_SIZE),
- mFileSize(0),
- mSkippedStatesTime(0),
- mCachedSize(0),
- mLoaded(false),
- mSentRequest(UNSENT),
- mDecodeHandle(0),
- mDecoded(false),
- mWritten(false),
- mNeedsAux(false),
- mHaveAllData(false),
- mInLocalCache(false),
- mInCache(false),
- mCanUseHTTP(true),
- mRetryAttempt(0),
- mActiveCount(0),
- mWorkMutex(),
- mFirstPacket(0),
- mLastPacket(-1),
- mTotalPackets(0),
- mImageCodec(IMG_CODEC_INVALID),
- mMetricsStartTime(0),
- mHttpHandle(LLCORE_HTTP_HANDLE_INVALID),
- mHttpBufferArray(NULL),
- mHttpPolicyClass(mFetcher->mHttpPolicyClass),
- mHttpActive(false),
- mHttpReplySize(0U),
- mHttpReplyOffset(0U),
- mHttpHasResource(false),
- mCacheReadCount(0U),
- mCacheWriteCount(0U),
- mResourceWaitCount(0U),
- mFetchRetryPolicy(10.f,3600.f,2.f,10),
- mCanUseCapability(true),
- mRegionRetryAttempt(0)
-{
- mType = host.isOk() ? LLImageBase::TYPE_AVATAR_BAKE : LLImageBase::TYPE_NORMAL;
-// LL_INFOS(LOG_TXT) << "Create: " << mID << " mHost:" << host << " Discard=" << discard << LL_ENDL;
- if (!mFetcher->mDebugPause)
- {
- addWork(0);
- }
- setDesiredDiscard(discard, size);
-}
-
-LLTextureFetchWorker::~LLTextureFetchWorker()
-{
-// LL_INFOS(LOG_TXT) << "Destroy: " << mID
-// << " Decoded=" << mDecodedDiscard
-// << " Requested=" << mRequestedDiscard
-// << " Desired=" << mDesiredDiscard << LL_ENDL;
- llassert_always(!haveWork());
-
- lockWorkMutex(); // +Mw (should be useless)
- if (mHttpHasResource)
- {
- // Last-chance catchall to recover the resource. Using an
- // atomic datatype solely because this can be running in
- // another thread.
- releaseHttpSemaphore();
- }
- if (mHttpActive)
- {
- // Issue a cancel on a live request...
- mFetcher->getHttpRequest().requestCancel(mHttpHandle, LLCore::HttpHandler::ptr_t());
- }
- if (mCacheReadHandle != LLTextureCache::nullHandle() && mFetcher->mTextureCache)
- {
- mFetcher->mTextureCache->readComplete(mCacheReadHandle, true);
- }
- if (mCacheWriteHandle != LLTextureCache::nullHandle() && mFetcher->mTextureCache)
- {
- mFetcher->mTextureCache->writeComplete(mCacheWriteHandle, true);
- }
- mFormattedImage = NULL;
- clearPackets();
- if (mHttpBufferArray)
- {
- mHttpBufferArray->release();
- mHttpBufferArray = NULL;
- }
- unlockWorkMutex(); // -Mw
- mFetcher->removeFromHTTPQueue(mID, (S32Bytes)0);
- mFetcher->removeHttpWaiter(mID);
- mFetcher->updateStateStats(mCacheReadCount, mCacheWriteCount, mResourceWaitCount);
-}
-
-// Locks: Mw
-void LLTextureFetchWorker::clearPackets()
-{
- for_each(mPackets.begin(), mPackets.end(), DeletePointer());
- mPackets.clear();
- mTotalPackets = 0;
- mLastPacket = -1;
- mFirstPacket = 0;
-}
-
-// Locks: Mw (ctor invokes without lock)
-void LLTextureFetchWorker::setDesiredDiscard(S32 discard, S32 size)
-{
- bool prioritize = false;
- if (mDesiredDiscard != discard)
- {
- if (!haveWork())
- {
- if (!mFetcher->mDebugPause)
- {
- addWork(0);
- }
- }
- else if (mDesiredDiscard < discard)
- {
- prioritize = true;
- }
- mDesiredDiscard = discard;
- mDesiredSize = size;
- }
- else if (size > mDesiredSize)
- {
- mDesiredSize = size;
- prioritize = true;
- }
- mDesiredSize = llmax(mDesiredSize, TEXTURE_CACHE_ENTRY_SIZE);
- if ((prioritize && mState == INIT) || mState == DONE)
- {
- setState(INIT);
- }
-}
-
-// Locks: Mw
-void LLTextureFetchWorker::setImagePriority(F32 priority)
-{
- mImagePriority = priority; //should map to max virtual size, abort if zero
-}
-
-// Locks: Mw
-void LLTextureFetchWorker::resetFormattedData()
-{
- if (mHttpBufferArray)
- {
- mHttpBufferArray->release();
- mHttpBufferArray = NULL;
- }
- if (mFormattedImage.notNull())
- {
- mFormattedImage->deleteData();
- }
- mHttpReplySize = 0;
- mHttpReplyOffset = 0;
- mHaveAllData = false;
-}
-
-F32 LLTextureFetchWorker::getImagePriority() const
-{
- return mImagePriority;
-}
-
-// Threads: Tmain
-void LLTextureFetchWorker::startWork(S32 param)
-{
- llassert(mFormattedImage.isNull());
-}
-
-// Threads: Ttf
-bool LLTextureFetchWorker::doWork(S32 param)
-{
- LL_PROFILE_ZONE_SCOPED_CATEGORY_THREAD;
- if (gNonInteractive)
- {
- return true;
- }
- static const LLCore::HttpStatus http_not_found(HTTP_NOT_FOUND); // 404
- static const LLCore::HttpStatus http_service_unavail(HTTP_SERVICE_UNAVAILABLE); // 503
- static const LLCore::HttpStatus http_not_sat(HTTP_REQUESTED_RANGE_NOT_SATISFIABLE); // 416;
-
- LLMutexLock lock(&mWorkMutex); // +Mw
-
- if ((mFetcher->isQuitting() || getFlags(LLWorkerClass::WCF_DELETE_REQUESTED)))
- {
- if (mState < DECODE_IMAGE)
- {
- LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - state < decode");
- return true; // abort
- }
- }
-
- if (mImagePriority < F_ALMOST_ZERO)
- {
- if (mState == INIT || mState == LOAD_FROM_NETWORK)
- {
- LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - priority < 0");
- LL_DEBUGS(LOG_TXT) << mID << " abort: mImagePriority < F_ALMOST_ZERO" << LL_ENDL;
- return true; // abort
- }
- }
- if (mState > CACHE_POST && !mCanUseCapability && mCanUseHTTP)
- {
- if (mRegionRetryAttempt > MAX_CAP_MISSING_RETRIES)
- {
- mCanUseHTTP = false;
- }
- else if (!mRegionRetryTimer.hasExpired())
- {
- return false;
- }
- // else retry
- }
- if(mState > CACHE_POST && !mCanUseHTTP)
- {
- LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - state > cache_post");
- //nowhere to get data, abort.
- LL_WARNS(LOG_TXT) << mID << " abort, nowhere to get data" << LL_ENDL;
- return true ;
- }
-
- if (mFetcher->mDebugPause)
- {
- return false; // debug: don't do any work
- }
- if (mID == mFetcher->mDebugID)
- {
- mFetcher->mDebugCount++; // for setting breakpoints
- }
-
- if (mState != DONE)
- {
- mFetchDeltaTimer.reset();
- }
-
- if (mState == INIT)
- {
- LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - INIT");
- mStateTimer.reset();
- mFetchTimer.reset();
- for(auto i : LOGGED_STATES)
- {
- mStateTimersMap[i] = 0;
- }
- mSkippedStatesTime = 0;
- mRawImage = NULL ;
- mRequestedDiscard = -1;
- mLoadedDiscard = -1;
- mDecodedDiscard = -1;
- mRequestedSize = 0;
- mRequestedOffset = 0;
- mFileSize = 0;
- mCachedSize = 0;
- mLoaded = false;
- mSentRequest = UNSENT;
- mDecoded = false;
- mWritten = false;
- if (mHttpBufferArray)
- {
- mHttpBufferArray->release();
- mHttpBufferArray = NULL;
- }
- mHttpReplySize = 0;
- mHttpReplyOffset = 0;
- mHaveAllData = false;
- clearPackets(); // TODO: Shouldn't be necessary
- mCacheReadHandle = LLTextureCache::nullHandle();
- mCacheWriteHandle = LLTextureCache::nullHandle();
- setState(LOAD_FROM_TEXTURE_CACHE);
- mInCache = false;
- mDesiredSize = llmax(mDesiredSize, TEXTURE_CACHE_ENTRY_SIZE); // min desired size is TEXTURE_CACHE_ENTRY_SIZE
- LL_DEBUGS(LOG_TXT) << mID << ": Priority: " << llformat("%8.0f",mImagePriority)
- << " Desired Discard: " << mDesiredDiscard << " Desired Size: " << mDesiredSize << LL_ENDL;
-
- // fall through
- }
-
- if (mState == LOAD_FROM_TEXTURE_CACHE)
- {
- LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - LOAD_FROM_TEXTURE_CACHE");
- if (mCacheReadHandle == LLTextureCache::nullHandle())
- {
- S32 offset = mFormattedImage.notNull() ? mFormattedImage->getDataSize() : 0;
- S32 size = mDesiredSize - offset;
- if (size <= 0)
- {
- setState(CACHE_POST);
- return doWork(param);
- // return false;
- }
- mFileSize = 0;
- mLoaded = false;
-
- add(LLTextureFetch::sCacheAttempt, 1.0);
-
- if (mUrl.compare(0, 7, "file://") == 0)
- {
- // read file from local disk
- ++mCacheReadCount;
- std::string filename = mUrl.substr(7, std::string::npos);
- CacheReadResponder* responder = new CacheReadResponder(mFetcher, mID, mFormattedImage);
- mCacheReadTimer.reset();
- mCacheReadHandle = mFetcher->mTextureCache->readFromCache(filename, mID, offset, size, responder);
-
- }
- else if ((mUrl.empty() || mFTType==FTT_SERVER_BAKE) && mFetcher->canLoadFromCache())
- {
- ++mCacheReadCount;
- CacheReadResponder* responder = new CacheReadResponder(mFetcher, mID, mFormattedImage);
- mCacheReadTimer.reset();
- mCacheReadHandle = mFetcher->mTextureCache->readFromCache(mID,
- offset, size, responder);;
- }
- else if(!mUrl.empty() && mCanUseHTTP)
- {
- setState(WAIT_HTTP_RESOURCE);
- }
- else
- {
- setState(LOAD_FROM_NETWORK);
- }
- }
-
- if (mLoaded)
- {
- // Make sure request is complete. *TODO: make this auto-complete
- if (mFetcher->mTextureCache->readComplete(mCacheReadHandle, false))
- {
- mCacheReadHandle = LLTextureCache::nullHandle();
- setState(CACHE_POST);
- add(LLTextureFetch::sCacheHit, 1.0);
- mCacheReadTime = mCacheReadTimer.getElapsedTimeF32();
- // fall through
- }
- else
- {
- //
- //This should never happen
- //
- LL_DEBUGS(LOG_TXT) << mID << " this should never happen" << LL_ENDL;
- return false;
- }
- }
- else
- {
- return false;
- }
- }
-
- if (mState == CACHE_POST)
- {
- LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - CACHE_POST");
- mCachedSize = mFormattedImage.notNull() ? mFormattedImage->getDataSize() : 0;
- // Successfully loaded
- if ((mCachedSize >= mDesiredSize) || mHaveAllData)
- {
- // we have enough data, decode it
- llassert_always(mFormattedImage->getDataSize() > 0);
- mLoadedDiscard = mDesiredDiscard;
- if (mLoadedDiscard < 0)
- {
- LL_WARNS(LOG_TXT) << mID << " mLoadedDiscard is " << mLoadedDiscard
- << ", should be >=0" << LL_ENDL;
- }
- setState(DECODE_IMAGE);
- mInCache = true;
- mWriteToCacheState = NOT_WRITE ;
- LL_DEBUGS(LOG_TXT) << mID << ": Cached. Bytes: " << mFormattedImage->getDataSize()
- << " Size: " << llformat("%dx%d",mFormattedImage->getWidth(),mFormattedImage->getHeight())
- << " Desired Discard: " << mDesiredDiscard << " Desired Size: " << mDesiredSize << LL_ENDL;
- record(LLTextureFetch::sCacheHitRate, LLUnits::Ratio::fromValue(1));
- }
- else
- {
- if (mUrl.compare(0, 7, "file://") == 0)
- {
- // failed to load local file, we're done.
- LL_WARNS(LOG_TXT) << mID << ": abort, failed to load local file " << mUrl << LL_ENDL;
- return true;
- }
- // need more data
- else
- {
- LL_DEBUGS(LOG_TXT) << mID << ": Not in Cache" << LL_ENDL;
- setState(LOAD_FROM_NETWORK);
- }
- record(LLTextureFetch::sCacheHitRate, LLUnits::Ratio::fromValue(0));
- // fall through
- }
- }
-
- if (mState == LOAD_FROM_NETWORK)
- {
- LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - LOAD_FROM_NETWORK");
- // Check for retries to previous server failures.
- F32 wait_seconds;
- if (mFetchRetryPolicy.shouldRetry(wait_seconds))
- {
- if (wait_seconds <= 0.0)
- {
- LL_INFOS(LOG_TXT) << mID << " retrying now" << LL_ENDL;
- }
- else
- {
- //LL_INFOS(LOG_TXT) << mID << " waiting to retry for " << wait_seconds << " seconds" << LL_ENDL;
- return false;
- }
- }
-
- static LLCachedControl<bool> use_http(gSavedSettings, "ImagePipelineUseHTTP", true);
-
-// if (mHost.isInvalid()) get_url = false;
- if ( use_http && mCanUseHTTP && mUrl.empty())//get http url.
- {
- LLViewerRegion* region = getRegion();
- if (region)
- {
- std::string http_url = region->getViewerAssetUrl();
- if (!http_url.empty())
- {
- if (mFTType != FTT_DEFAULT)
- {
- LL_WARNS(LOG_TXT) << "Trying to fetch a texture of non-default type by UUID. This probably won't work!" << LL_ENDL;
- }
- setUrl(http_url + "/?texture_id=" + mID.asString().c_str());
- LL_DEBUGS(LOG_TXT) << "Texture URL: " << mUrl << LL_ENDL;
- mWriteToCacheState = CAN_WRITE ; //because this texture has a fixed texture id.
- mCanUseCapability = true;
- mRegionRetryAttempt = 0;
- mLastRegionId = region->getRegionID();
- }
- else
- {
- mCanUseCapability = false;
- mRegionRetryAttempt++;
- mRegionRetryTimer.setTimerExpirySec(CAP_MISSING_EXPIRATION_DELAY);
- // ex: waiting for caps
- LL_INFOS_ONCE(LOG_TXT) << "Texture not available via HTTP: empty URL." << LL_ENDL;
- }
- }
- else
- {
- mCanUseCapability = false;
- mRegionRetryAttempt++;
- mRegionRetryTimer.setTimerExpirySec(CAP_MISSING_EXPIRATION_DELAY);
- // This will happen if not logged in or if a region deoes not have HTTP Texture enabled
- //LL_WARNS(LOG_TXT) << "Region not found for host: " << mHost << LL_ENDL;
- LL_INFOS_ONCE(LOG_TXT) << "Texture not available via HTTP: no region " << mUrl << LL_ENDL;
- }
- }
- else if (mFTType == FTT_SERVER_BAKE)
- {
- mWriteToCacheState = CAN_WRITE;
- }
-
- if (mCanUseCapability && mCanUseHTTP && !mUrl.empty())
- {
- setState(WAIT_HTTP_RESOURCE);
- if(mWriteToCacheState != NOT_WRITE)
- {
- mWriteToCacheState = CAN_WRITE ;
- }
- // don't return, fall through to next state
- }
- else
- {
- return false;
- }
- }
-
- if (mState == WAIT_HTTP_RESOURCE)
- {
- LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - WAIT_HTTP_RESOURCE");
- // NOTE:
- // control the number of the http requests issued for:
- // 1, not openning too many file descriptors at the same time;
- // 2, control the traffic of http so udp gets bandwidth.
- //
- // If it looks like we're busy, keep this request here.
- // Otherwise, advance into the HTTP states.
-
- if (!mHttpHasResource && // sometimes we get into this state when we already have an http resource, go ahead and send the request in that case
- (mFetcher->getHttpWaitersCount() || ! acquireHttpSemaphore()))
- {
- setState(WAIT_HTTP_RESOURCE2);
- mFetcher->addHttpWaiter(this->mID);
- ++mResourceWaitCount;
- return false;
- }
-
- setState(SEND_HTTP_REQ);
- // *NOTE: You must invoke releaseHttpSemaphore() if you transition
- // to a state other than SEND_HTTP_REQ or WAIT_HTTP_REQ or abort
- // the request.
- }
-
- if (mState == WAIT_HTTP_RESOURCE2)
- {
- LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - WAIT_HTTP_RESOURCE2");
- // Just idle it if we make it to the head...
- return false;
- }
-
- if (mState == SEND_HTTP_REQ)
- {
- LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - SEND_HTTP_REQ");
- // Also used in llmeshrepository
- static LLCachedControl<bool> disable_range_req(gSavedSettings, "HttpRangeRequestsDisable", false);
-
- if (! mCanUseHTTP)
- {
- releaseHttpSemaphore();
- LL_WARNS(LOG_TXT) << mID << " abort: SEND_HTTP_REQ but !mCanUseHTTP" << LL_ENDL;
- return true; // abort
- }
-
- S32 cur_size = 0;
- if (mFormattedImage.notNull())
- {
- cur_size = mFormattedImage->getDataSize(); // amount of data we already have
- if (mFormattedImage->getDiscardLevel() == 0)
- {
- if (cur_size > 0)
- {
- // We already have all the data, just decode it
- mLoadedDiscard = mFormattedImage->getDiscardLevel();
- if (mLoadedDiscard < 0)
- {
- LL_WARNS(LOG_TXT) << mID << " mLoadedDiscard is " << mLoadedDiscard
- << ", should be >=0" << LL_ENDL;
- }
- setState(DECODE_IMAGE);
- releaseHttpSemaphore();
- //return false;
- return doWork(param);
- }
- else
- {
- releaseHttpSemaphore();
- LL_WARNS(LOG_TXT) << mID << " SEND_HTTP_REQ abort: cur_size " << cur_size << " <=0" << LL_ENDL;
- return true; // abort.
- }
- }
- }
- mRequestedSize = mDesiredSize;
- mRequestedDiscard = mDesiredDiscard;
- mRequestedSize -= cur_size;
- mRequestedOffset = cur_size;
- if (mRequestedOffset)
- {
- // Texture fetching often issues 'speculative' loads that
- // start beyond the end of the actual asset. Some cache/web
- // systems, e.g. Varnish, will respond to this not with a
- // 416 but with a 200 and the entire asset in the response
- // body. By ensuring that we always have a partially
- // satisfiable Range request, we avoid that hit to the network.
- // We just have to deal with the overlapping data which is made
- // somewhat harder by the fact that grid services don't necessarily
- // return the Content-Range header on 206 responses. *Sigh*
- mRequestedOffset -= 1;
- mRequestedSize += 1;
- }
- mHttpHandle = LLCORE_HTTP_HANDLE_INVALID;
-
- if (mUrl.empty())
- {
- // *FIXME: This should not be reachable except it has become
- // so after some recent 'work'. Need to track this down
- // and illuminate the unenlightened.
- LL_WARNS(LOG_TXT) << "HTTP GET request failed for " << mID
- << " on empty URL." << LL_ENDL;
- resetFormattedData();
- releaseHttpSemaphore();
- return true; // failed
- }
-
- mRequestedDeltaTimer.reset();
- mLoaded = false;
- mGetStatus = LLCore::HttpStatus();
- mGetReason.clear();
- LL_DEBUGS(LOG_TXT) << "HTTP GET: " << mID << " Offset: " << mRequestedOffset
- << " Bytes: " << mRequestedSize
- << " Bandwidth(kbps): " << mFetcher->getTextureBandwidth() << "/" << mFetcher->mMaxBandwidth
- << LL_ENDL;
-
- // Will call callbackHttpGet when curl request completes
- // Only server bake images use the returned headers currently, for getting retry-after field.
- LLCore::HttpOptions::ptr_t options = (mFTType == FTT_SERVER_BAKE) ? mFetcher->mHttpOptionsWithHeaders: mFetcher->mHttpOptions;
- if (disable_range_req)
- {
- // 'Range:' requests may be disabled in which case all HTTP
- // texture fetches result in full fetches. This can be used
- // by people with questionable ISPs or networking gear that
- // doesn't handle these well.
- mHttpHandle = mFetcher->mHttpRequest->requestGet(mHttpPolicyClass,
- mUrl,
- options,
- mFetcher->mHttpHeaders,
- LLCore::HttpHandler::ptr_t(this, &NoOpDeletor));
- }
- else
- {
- mHttpHandle = mFetcher->mHttpRequest->requestGetByteRange(mHttpPolicyClass,
- mUrl,
- mRequestedOffset,
- (mRequestedOffset + mRequestedSize) > HTTP_REQUESTS_RANGE_END_MAX
- ? 0
- : mRequestedSize,
- options,
- mFetcher->mHttpHeaders,
- LLCore::HttpHandler::ptr_t(this, &NoOpDeletor));
- }
- if (LLCORE_HTTP_HANDLE_INVALID == mHttpHandle)
- {
- LLCore::HttpStatus status(mFetcher->mHttpRequest->getStatus());
- LL_WARNS(LOG_TXT) << "HTTP GET request failed for " << mID
- << ", Status: " << status.toTerseString()
- << " Reason: '" << status.toString() << "'"
- << LL_ENDL;
- resetFormattedData();
- releaseHttpSemaphore();
- return true; // failed
- }
-
- mHttpActive = true;
- mFetcher->addToHTTPQueue(mID);
- recordTextureStart(true);
- setState(WAIT_HTTP_REQ);
-
- // fall through
- }
-
- if (mState == WAIT_HTTP_REQ)
- {
- LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - WAIT_HTTP_REQ");
- // *NOTE: As stated above, all transitions out of this state should
- // call releaseHttpSemaphore().
- if (mLoaded)
- {
- S32 cur_size = mFormattedImage.notNull() ? mFormattedImage->getDataSize() : 0;
- if (mRequestedSize < 0)
- {
- if (http_not_found == mGetStatus)
- {
- if (mFTType != FTT_MAP_TILE)
- {
- LL_WARNS(LOG_TXT) << "Texture missing from server (404): " << mUrl << LL_ENDL;
- }
-
- if(mWriteToCacheState == NOT_WRITE) //map tiles or server bakes
- {
- setState(DONE);
- releaseHttpSemaphore();
- if (mFTType != FTT_MAP_TILE)
- {
- LL_WARNS(LOG_TXT) << mID << " abort: WAIT_HTTP_REQ not found" << LL_ENDL;
- }
- return true;
- }
-
- if (mCanUseHTTP && !mUrl.empty() && cur_size <= 0)
- {
- LLViewerRegion* region = getRegion();
- if (!region || mLastRegionId != region->getRegionID())
- {
- // cap failure? try on new region.
- mUrl.clear();
- ++mRetryAttempt;
- mLastRegionId.setNull();
- setState(INIT);
- return false;
- }
- }
- }
- else if (http_service_unavail == mGetStatus)
- {
- LL_INFOS_ONCE(LOG_TXT) << "Texture server busy (503): " << mUrl << LL_ENDL;
- if (mCanUseHTTP && !mUrl.empty() && cur_size <= 0)
- {
- LLViewerRegion* region = getRegion();
- if (!region || mLastRegionId != region->getRegionID())
- {
- // try on new region.
- mUrl.clear();
- ++mRetryAttempt;
- mLastRegionId.setNull();
- setState(INIT);
- return false;
- }
- }
- }
- else if (http_not_sat == mGetStatus)
- {
- // Allowed, we'll accept whatever data we have as complete.
- mHaveAllData = true;
- }
- else
- {
- LL_INFOS(LOG_TXT) << "HTTP GET failed for: " << mUrl
- << " Status: " << mGetStatus.toTerseString()
- << " Reason: '" << mGetReason << "'"
- << LL_ENDL;
- }
-
- if (mFTType != FTT_SERVER_BAKE && mFTType != FTT_MAP_TILE)
- {
- mUrl.clear();
- }
- if (cur_size > 0)
- {
- // Use available data
- mLoadedDiscard = mFormattedImage->getDiscardLevel();
- if (mLoadedDiscard < 0)
- {
- LL_WARNS(LOG_TXT) << mID << " mLoadedDiscard is " << mLoadedDiscard
- << ", should be >=0" << LL_ENDL;
- }
- setState(DECODE_IMAGE);
- releaseHttpSemaphore();
- //return false;
- return doWork(param);
- }
-
- // Fail harder
- resetFormattedData();
- setState(DONE);
- releaseHttpSemaphore();
- LL_WARNS(LOG_TXT) << mID << " abort: fail harder" << LL_ENDL;
- return true; // failed
- }
-
- // Clear the url since we're done with the fetch
- // Note: mUrl is used to check is fetching is required so failure to clear it will force an http fetch
- // next time the texture is requested, even if the data have already been fetched.
- if(mWriteToCacheState != NOT_WRITE && mFTType != FTT_SERVER_BAKE)
- {
- // Why do we want to keep url if NOT_WRITE - is this a proxy for map tiles?
- mUrl.clear();
- }
-
- if (! mHttpBufferArray || ! mHttpBufferArray->size())
- {
- // no data received.
- if (mHttpBufferArray)
- {
- mHttpBufferArray->release();
- mHttpBufferArray = NULL;
- }
-
- // abort.
- setState(DONE);
- LL_WARNS(LOG_TXT) << mID << " abort: no data received" << LL_ENDL;
- releaseHttpSemaphore();
- return true;
- }
-
- S32 append_size(mHttpBufferArray->size());
- S32 total_size(cur_size + append_size);
- S32 src_offset(0);
- llassert_always(append_size == mRequestedSize);
- if (mHttpReplyOffset && mHttpReplyOffset != cur_size)
- {
- // In case of a partial response, our offset may
- // not be trivially contiguous with the data we have.
- // Get back into alignment.
- if ( (mHttpReplyOffset > cur_size) || (cur_size > mHttpReplyOffset + append_size))
- {
- LL_WARNS(LOG_TXT) << "Partial HTTP response produces break in image data for texture "
- << mID << ". Aborting load." << LL_ENDL;
- setState(DONE);
- releaseHttpSemaphore();
- return true;
- }
- src_offset = cur_size - mHttpReplyOffset;
- append_size -= src_offset;
- total_size -= src_offset;
- mRequestedSize -= src_offset; // Make requested values reflect useful part
- mRequestedOffset += src_offset;
- }
-
- U8 * buffer = (U8 *)ll_aligned_malloc_16(total_size);
- if (!buffer)
- {
- // abort. If we have no space for packet, we have not enough space to decode image
- setState(DONE);
- LL_WARNS(LOG_TXT) << mID << " abort: out of memory" << LL_ENDL;
- releaseHttpSemaphore();
- return true;
- }
-
- if (mFormattedImage.isNull())
- {
- // For now, create formatted image based on extension
- std::string extension = gDirUtilp->getExtension(mUrl);
- mFormattedImage = LLImageFormatted::createFromType(LLImageBase::getCodecFromExtension(extension));
- if (mFormattedImage.isNull())
- {
- mFormattedImage = new LLImageJ2C; // default
- }
- }
-
- LLImageDataLock lock(mFormattedImage);
-
- if (mHaveAllData) //the image file is fully loaded.
- {
- mFileSize = total_size;
- }
- else //the file size is unknown.
- {
- mFileSize = total_size + 1 ; //flag the file is not fully loaded.
- }
-
- if (cur_size > 0)
- {
- // Copy previously collected data into buffer
- memcpy(buffer, mFormattedImage->getData(), cur_size);
- }
- mHttpBufferArray->read(src_offset, (char *) buffer + cur_size, append_size);
-
- // NOTE: setData releases current data and owns new data (buffer)
- mFormattedImage->setData(buffer, total_size);
-
- // Done with buffer array
- mHttpBufferArray->release();
- mHttpBufferArray = NULL;
- mHttpReplySize = 0;
- mHttpReplyOffset = 0;
-
- mLoadedDiscard = mRequestedDiscard;
- if (mLoadedDiscard < 0)
- {
- LL_WARNS(LOG_TXT) << mID << " mLoadedDiscard is " << mLoadedDiscard
- << ", should be >=0" << LL_ENDL;
- }
- setState(DECODE_IMAGE);
- if (mWriteToCacheState != NOT_WRITE)
- {
- mWriteToCacheState = SHOULD_WRITE ;
- }
- releaseHttpSemaphore();
- //return false;
- return doWork(param);
- }
- else
- {
- // *HISTORY: There was a texture timeout test here originally that
- // would cancel a request that was over 120 seconds old. That's
- // probably not a good idea. Particularly rich regions can take
- // an enormous amount of time to load textures. We'll revisit the
- // various possible timeout components (total request time, connection
- // time, I/O time, with and without retries, etc.) in the future.
-
- return false;
- }
- }
-
- if (mState == DECODE_IMAGE)
- {
- LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - DECODE_IMAGE");
- static LLCachedControl<bool> textures_decode_disabled(gSavedSettings, "TextureDecodeDisabled", false);
-
- if (textures_decode_disabled)
- {
- // for debug use, don't decode
- setState(DONE);
- return true;
- }
-
- if (mDesiredDiscard < 0)
- {
- // We aborted, don't decode
- setState(DONE);
- LL_DEBUGS(LOG_TXT) << mID << " DECODE_IMAGE abort: desired discard " << mDesiredDiscard << "<0" << LL_ENDL;
- return true;
- }
-
- if (mFormattedImage->getDataSize() <= 0)
- {
- LL_WARNS(LOG_TXT) << "Decode entered with invalid mFormattedImage. ID = " << mID << LL_ENDL;
-
- //abort, don't decode
- setState(DONE);
- LL_DEBUGS(LOG_TXT) << mID << " DECODE_IMAGE abort: (mFormattedImage->getDataSize() <= 0)" << LL_ENDL;
- return true;
- }
- if (mLoadedDiscard < 0)
- {
- LL_WARNS(LOG_TXT) << "Decode entered with invalid mLoadedDiscard. ID = " << mID << LL_ENDL;
-
- //abort, don't decode
- setState(DONE);
- LL_DEBUGS(LOG_TXT) << mID << " DECODE_IMAGE abort: mLoadedDiscard < 0" << LL_ENDL;
- return true;
- }
- mDecodeTimer.reset();
- mRawImage = NULL;
- mAuxImage = NULL;
- llassert_always(mFormattedImage.notNull());
- S32 discard = mHaveAllData ? 0 : mLoadedDiscard;
- mDecoded = false;
- setState(DECODE_IMAGE_UPDATE);
- LL_DEBUGS(LOG_TXT) << mID << ": Decoding. Bytes: " << mFormattedImage->getDataSize() << " Discard: " << discard
- << " All Data: " << mHaveAllData << LL_ENDL;
-
- // In case worked manages to request decode, be shut down,
- // then init and request decode again with first decode
- // still in progress, assign a sufficiently unique id
- mDecodeHandle = LLAppViewer::getImageDecodeThread()->decodeImage(mFormattedImage,
- discard,
- mNeedsAux,
- new DecodeResponder(mFetcher, mID, this));
- if (mDecodeHandle == 0)
- {
- // Abort, failed to put into queue.
- // Happens if viewer is shutting down
- setState(DONE);
- LL_DEBUGS(LOG_TXT) << mID << " DECODE_IMAGE abort: failed to post for decoding" << LL_ENDL;
- return true;
- }
- // fall though
- }
-
- if (mState == DECODE_IMAGE_UPDATE)
- {
- LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - DECODE_IMAGE_UPDATE");
- if (mDecoded)
- {
- mDecodeTime = mDecodeTimer.getElapsedTimeF32();
-
- if (mDecodedDiscard < 0)
- {
- if (mCachedSize > 0 && !mInLocalCache && mRetryAttempt == 0)
- {
- // Cache file should be deleted, try again
- LL_DEBUGS(LOG_TXT) << mID << ": Decode of cached file failed (removed), retrying" << LL_ENDL;
- llassert_always(mDecodeHandle == 0);
- mFormattedImage = NULL;
- ++mRetryAttempt;
- setState(INIT);
- //return false;
- return doWork(param);
- }
- else
- {
- LL_DEBUGS(LOG_TXT) << "Failed to Decode image " << mID << " after " << mRetryAttempt << " retries" << LL_ENDL;
- setState(DONE); // failed
- }
- }
- else
- {
- llassert_always(mRawImage.notNull());
- LL_DEBUGS(LOG_TXT) << mID << ": Decoded. Discard: " << mDecodedDiscard
- << " Raw Image: " << llformat("%dx%d",mRawImage->getWidth(),mRawImage->getHeight()) << LL_ENDL;
- setState(WRITE_TO_CACHE);
- }
- // fall through
- }
- else
- {
- return false;
- }
- }
-
- if (mState == WRITE_TO_CACHE)
- {
- LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - WRITE_TO_CACHE");
- if (mWriteToCacheState != SHOULD_WRITE || mFormattedImage.isNull())
- {
- // If we're in a local cache or we didn't actually receive any new data,
- // or we failed to load anything, skip
- setState(DONE);
- //return false;
- return doWork(param);
- }
-
- LLImageDataSharedLock lock(mFormattedImage);
-
- S32 datasize = mFormattedImage->getDataSize();
- if(mFileSize < datasize)//This could happen when http fetching and sim fetching mixed.
- {
- if(mHaveAllData)
- {
- mFileSize = datasize ;
- }
- else
- {
- mFileSize = datasize + 1 ; //flag not fully loaded.
- }
- }
- llassert_always(datasize);
- mWritten = false;
- setState(WAIT_ON_WRITE);
- ++mCacheWriteCount;
- CacheWriteResponder* responder = new CacheWriteResponder(mFetcher, mID);
- // This call might be under work mutex, but mRawImage is not nessesary safe here.
- // If something retrieves it via getRequestFinished() and modifies, image won't
- // be protected by work mutex and won't be safe to use here nor in cache worker.
- // So make sure users of getRequestFinished() does not attempt to modify image while
- // fetcher is working
- mCacheWriteTimer.reset();
- mCacheWriteHandle = mFetcher->mTextureCache->writeToCache(mID,
- mFormattedImage->getData(), datasize,
- mFileSize, mRawImage, mDecodedDiscard, responder);
- // fall through
- }
-
- if (mState == WAIT_ON_WRITE)
- {
- LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - WAIT_ON_WRITE");
- if (writeToCacheComplete())
- {
- mCacheWriteTime = mCacheWriteTimer.getElapsedTimeF32();
- setState(DONE);
- // fall through
- }
- else
- {
- if (mDesiredDiscard < mDecodedDiscard)
- {
- // We're waiting for this write to complete before we can receive more data
- // (we can't touch mFormattedImage until the write completes)
- // Prioritize the write
- mFetcher->mTextureCache->prioritizeWrite(mCacheWriteHandle);
- }
- return false;
- }
- }
-
- if (mState == DONE)
- {
- LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - DONE");
- if (mDecodedDiscard >= 0 && mDesiredDiscard < mDecodedDiscard)
- {
- // More data was requested, return to INIT
- setState(INIT);
- LL_DEBUGS(LOG_TXT) << mID << " more data requested, returning to INIT: "
- << " mDecodedDiscard " << mDecodedDiscard << ">= 0 && mDesiredDiscard " << mDesiredDiscard
- << "<" << " mDecodedDiscard " << mDecodedDiscard << LL_ENDL;
- // return false;
- return doWork(param);
- }
- else
- {
- mFetchTime = mFetchTimer.getElapsedTimeF32();
- return true;
- }
- }
-
- return false;
-} // -Mw
-
-// Threads: Ttf
-// virtual
-void LLTextureFetchWorker::onCompleted(LLCore::HttpHandle handle, LLCore::HttpResponse * response)
-{
- LL_PROFILE_ZONE_SCOPED;
- static LLCachedControl<bool> log_to_viewer_log(gSavedSettings, "LogTextureDownloadsToViewerLog", false);
- static LLCachedControl<bool> log_to_sim(gSavedSettings, "LogTextureDownloadsToSimulator", false);
- static LLCachedControl<bool> log_texture_traffic(gSavedSettings, "LogTextureNetworkTraffic", false) ;
-
- LLMutexLock lock(&mWorkMutex); // +Mw
-
- mHttpActive = false;
-
- if (log_to_viewer_log || log_to_sim)
- {
- mFetcher->mTextureInfo.setRequestStartTime(mID, mMetricsStartTime.value());
- mFetcher->mTextureInfo.setRequestType(mID, LLTextureInfoDetails::REQUEST_TYPE_HTTP);
- mFetcher->mTextureInfo.setRequestSize(mID, mRequestedSize);
- mFetcher->mTextureInfo.setRequestOffset(mID, mRequestedOffset);
- mFetcher->mTextureInfo.setRequestCompleteTimeAndLog(mID, LLTimer::getTotalTime());
- }
-
- static LLCachedControl<F32> fake_failure_rate(gSavedSettings, "TextureFetchFakeFailureRate", 0.0f);
- F32 rand_val = ll_frand();
- F32 rate = fake_failure_rate;
- if (mFTType == FTT_SERVER_BAKE && (fake_failure_rate > 0.0) && (rand_val < fake_failure_rate))
- {
- LL_WARNS(LOG_TXT) << mID << " for debugging, setting fake failure status for texture " << mID
- << " (rand was " << rand_val << "/" << rate << ")" << LL_ENDL;
- response->setStatus(LLCore::HttpStatus(503));
- }
- bool success = true;
- bool partial = false;
- LLCore::HttpStatus status(response->getStatus());
- if (!status && (mFTType == FTT_SERVER_BAKE))
- {
- LL_INFOS(LOG_TXT) << mID << " state " << e_state_name[mState] << LL_ENDL;
- mFetchRetryPolicy.onFailure(response);
- F32 retry_after;
- if (mFetchRetryPolicy.shouldRetry(retry_after))
- {
- LL_INFOS(LOG_TXT) << mID << " will retry after " << retry_after << " seconds, resetting state to LOAD_FROM_NETWORK" << LL_ENDL;
- mFetcher->removeFromHTTPQueue(mID, S32Bytes(0));
- std::string reason(status.toString());
- setGetStatus(status, reason);
- releaseHttpSemaphore();
- setState(LOAD_FROM_NETWORK);
- return;
- }
- else
- {
- LL_INFOS(LOG_TXT) << mID << " will not retry" << LL_ENDL;
- }
- }
- else
- {
- mFetchRetryPolicy.onSuccess();
- }
-
- std::string reason(status.toString());
- setGetStatus(status, reason);
- LL_DEBUGS(LOG_TXT) << "HTTP COMPLETE: " << mID
- << " status: " << status.toTerseString()
- << " '" << reason << "'"
- << LL_ENDL;
-
- if (! status)
- {
- success = false;
- if (mFTType != FTT_MAP_TILE) // missing map tiles are normal, don't complain about them.
- {
- LL_WARNS(LOG_TXT) << "CURL GET FAILED, status: " << status.toTerseString()
- << " reason: " << reason << LL_ENDL;
- }
- }
- else
- {
- // A warning about partial (HTTP 206) data. Some grid services
- // do *not* return a 'Content-Range' header in the response to
- // Range requests with a 206 status. We're forced to assume
- // we get what we asked for in these cases until we can fix
- // the services.
- static const LLCore::HttpStatus par_status(HTTP_PARTIAL_CONTENT);
-
- partial = (par_status == status);
- }
-
- S32BytesImplicit data_size = callbackHttpGet(response, partial, success);
-
- if (log_texture_traffic && data_size > 0)
- {
- // one worker per multiple textures
- std::vector<LLViewerTexture*> textures;
- LLViewerTextureManager::findTextures(mID, textures);
- std::vector<LLViewerTexture*>::iterator iter = textures.begin();
- while (iter != textures.end())
- {
- LLViewerTexture* tex = *iter++;
- if (tex)
- {
- gTotalTextureBytesPerBoostLevel[tex->getBoostLevel()] += data_size;
- }
- }
- }
-
- mFetcher->removeFromHTTPQueue(mID, data_size);
-
- recordTextureDone(true, data_size);
-} // -Mw
-
-
-// Threads: Tmain
-void LLTextureFetchWorker::endWork(S32 param, bool aborted)
-{
- LL_PROFILE_ZONE_SCOPED;
- if (mDecodeHandle != 0)
- {
- // LL::ThreadPool has no operation to cancel a particular work item
- mDecodeHandle = 0;
- }
- mFormattedImage = NULL;
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-// Threads: Ttf
-
-// virtual
-void LLTextureFetchWorker::finishWork(S32 param, bool completed)
-{
- LL_PROFILE_ZONE_SCOPED;
- // The following are required in case the work was aborted
- if (mCacheReadHandle != LLTextureCache::nullHandle())
- {
- mFetcher->mTextureCache->readComplete(mCacheReadHandle, true);
- mCacheReadHandle = LLTextureCache::nullHandle();
- }
- if (mCacheWriteHandle != LLTextureCache::nullHandle())
- {
- mFetcher->mTextureCache->writeComplete(mCacheWriteHandle, true);
- mCacheWriteHandle = LLTextureCache::nullHandle();
- }
-}
-
-// LLQueuedThread's update() method is asking if it's okay to
-// delete this worker. You'll notice we're not locking in here
-// which is a slight concern. Caller is expected to have made
-// this request 'quiet' by whatever means...
-//
-// Threads: Tmain
-
-// virtual
-bool LLTextureFetchWorker::deleteOK()
-{
- bool delete_ok = true;
-
- if (mHttpActive)
- {
- // HTTP library has a pointer to this worker
- // and will dereference it to do notification.
- delete_ok = false;
- }
-
- if (WAIT_HTTP_RESOURCE2 == mState)
- {
- if (mFetcher->isHttpWaiter(mID))
- {
- // Don't delete the worker out from under the releaseHttpWaiters()
- // method. Keep the pointers valid, clean up after that method
- // has recognized the cancelation and removed the UUID from the
- // waiter list.
- delete_ok = false;
- }
- }
-
- // Allow any pending reads or writes to complete
- if (mCacheReadHandle != LLTextureCache::nullHandle())
- {
- if (mFetcher->mTextureCache->readComplete(mCacheReadHandle, true))
- {
- mCacheReadHandle = LLTextureCache::nullHandle();
- }
- else
- {
- delete_ok = false;
- }
- }
- if (mCacheWriteHandle != LLTextureCache::nullHandle())
- {
- if (mFetcher->mTextureCache->writeComplete(mCacheWriteHandle))
- {
- mCacheWriteHandle = LLTextureCache::nullHandle();
- }
- else
- {
- delete_ok = false;
- }
- }
-
- if ((haveWork() &&
- // not ok to delete from these states
- ((mState >= WRITE_TO_CACHE && mState <= WAIT_ON_WRITE))))
- {
- delete_ok = false;
- }
-
- return delete_ok;
-}
-
-// Threads: Ttf
-void LLTextureFetchWorker::removeFromCache()
-{
- if (!mInLocalCache)
- {
- mFetcher->mTextureCache->removeFromCache(mID);
- }
-}
-
-
-//////////////////////////////////////////////////////////////////////////////
-
-// Threads: Ttf
-// Locks: Mw
-S32 LLTextureFetchWorker::callbackHttpGet(LLCore::HttpResponse * response,
- bool partial, bool success)
-{
- S32 data_size = 0 ;
-
- if (mState != WAIT_HTTP_REQ)
- {
- LL_WARNS(LOG_TXT) << "callbackHttpGet for unrequested fetch worker: " << mID
- << " req=" << mSentRequest << " state= " << mState << LL_ENDL;
- return data_size;
- }
- if (mLoaded)
- {
- LL_WARNS(LOG_TXT) << "Duplicate callback for " << mID.asString() << LL_ENDL;
- return data_size ; // ignore duplicate callback
- }
- if (success)
- {
- // get length of stream:
- LLCore::BufferArray * body(response->getBody());
- data_size = body ? body->size() : 0;
-
- LL_DEBUGS(LOG_TXT) << "HTTP RECEIVED: " << mID.asString() << " Bytes: " << data_size << LL_ENDL;
- if (data_size > 0)
- {
- // *TODO: set the formatted image data here directly to avoid the copy
-
- // Hold on to body for later copy
- llassert_always(NULL == mHttpBufferArray);
- body->addRef();
- mHttpBufferArray = body;
-
- if (partial)
- {
- unsigned int offset(0), length(0), full_length(0);
- response->getRange(&offset, &length, &full_length);
- if (! offset && ! length)
- {
- // This is the case where we receive a 206 status but
- // there wasn't a useful Content-Range header in the response.
- // This could be because it was badly formatted but is more
- // likely due to capabilities services which scrub headers
- // from responses. Assume we got what we asked for...
- mHttpReplySize = data_size;
- mHttpReplyOffset = mRequestedOffset;
- }
- else
- {
- mHttpReplySize = length;
- mHttpReplyOffset = offset;
- }
- }
-
- if (! partial)
- {
- // Response indicates this is the entire asset regardless
- // of our asking for a byte range. Mark it so and drop
- // any partial data we might have so that the current
- // response body becomes the entire dataset.
- if (data_size <= mRequestedOffset)
- {
- LL_WARNS(LOG_TXT) << "Fetched entire texture " << mID
- << " when it was expected to be marked complete. mImageSize: "
- << mFileSize << " datasize: " << mFormattedImage->getDataSize()
- << LL_ENDL;
- }
- mHaveAllData = true;
- llassert_always(mDecodeHandle == 0);
- mFormattedImage = NULL; // discard any previous data we had
- }
- else if (data_size < mRequestedSize)
- {
- mHaveAllData = true;
- }
- else if (data_size > mRequestedSize)
- {
- // *TODO: This shouldn't be happening any more (REALLY don't expect this anymore)
- LL_WARNS(LOG_TXT) << "data_size = " << data_size << " > requested: " << mRequestedSize << LL_ENDL;
- mHaveAllData = true;
- llassert_always(mDecodeHandle == 0);
- mFormattedImage = NULL; // discard any previous data we had
- }
- }
- else
- {
- // We requested data but received none (and no error),
- // so presumably we have all of it
- mHaveAllData = true;
- }
- mRequestedSize = data_size;
-
- if (mHaveAllData)
- {
- LLViewerStatsRecorder::instance().textureFetch();
- }
-
- // *TODO: set the formatted image data here directly to avoid the copy
- }
- else
- {
- mRequestedSize = -1; // error
- }
-
- mLoaded = true;
-
- return data_size ;
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-// Threads: Ttc
-void LLTextureFetchWorker::callbackCacheRead(bool success, LLImageFormatted* image,
- S32 imagesize, bool islocal)
-{
- LL_PROFILE_ZONE_SCOPED_CATEGORY_TEXTURE;
- LLMutexLock lock(&mWorkMutex); // +Mw
- if (mState != LOAD_FROM_TEXTURE_CACHE)
- {
-// LL_WARNS(LOG_TXT) << "Read callback for " << mID << " with state = " << mState << LL_ENDL;
- return;
- }
- if (success)
- {
- llassert_always(imagesize >= 0);
- mFileSize = imagesize;
- mFormattedImage = image;
- mImageCodec = image->getCodec();
- mInLocalCache = islocal;
- if (mFileSize != 0 && mFormattedImage->getDataSize() >= mFileSize)
- {
- mHaveAllData = true;
- }
- }
- mLoaded = true;
-} // -Mw
-
-// Threads: Ttc
-void LLTextureFetchWorker::callbackCacheWrite(bool success)
-{
- LLMutexLock lock(&mWorkMutex); // +Mw
- if (mState != WAIT_ON_WRITE)
- {
-// LL_WARNS(LOG_TXT) << "Write callback for " << mID << " with state = " << mState << LL_ENDL;
- return;
- }
- mWritten = true;
-} // -Mw
-
-//////////////////////////////////////////////////////////////////////////////
-
-// Threads: Tid
-void LLTextureFetchWorker::callbackDecoded(bool success, LLImageRaw* raw, LLImageRaw* aux, S32 decode_id)
-{
- LLMutexLock lock(&mWorkMutex); // +Mw
- if (mDecodeHandle == 0)
- {
- return; // aborted, ignore
- }
- if (mDecodeHandle != decode_id)
- {
- // Queue doesn't support canceling old requests.
- // This shouldn't normally happen, but in case it's possible that a worked
- // will request decode, be aborted, reinited then start a new decode
- LL_DEBUGS(LOG_TXT) << mID << " received obsolete decode's callback" << LL_ENDL;
- return; // ignore
- }
- if (mState != DECODE_IMAGE_UPDATE)
- {
- LL_DEBUGS(LOG_TXT) << "Decode callback for " << mID << " with state = " << mState << LL_ENDL;
- mDecodeHandle = 0;
- return;
- }
- llassert_always(mFormattedImage.notNull());
-
- mDecodeHandle = 0;
- if (success)
- {
- llassert_always(raw);
- mRawImage = raw;
- mAuxImage = aux;
- mDecodedDiscard = mFormattedImage->getDiscardLevel();
- LL_DEBUGS(LOG_TXT) << mID << ": Decode Finished. Discard: " << mDecodedDiscard
- << " Raw Image: " << llformat("%dx%d",mRawImage->getWidth(),mRawImage->getHeight()) << LL_ENDL;
- }
- else
- {
- LL_WARNS(LOG_TXT) << "DECODE FAILED: " << mID << " Discard: " << (S32)mFormattedImage->getDiscardLevel() << LL_ENDL;
- removeFromCache();
- mDecodedDiscard = -1; // Redundant, here for clarity and paranoia
- }
- mDecoded = true;
-// LL_INFOS(LOG_TXT) << mID << " : DECODE COMPLETE " << LL_ENDL;
-} // -Mw
-
-//////////////////////////////////////////////////////////////////////////////
-
-// Threads: Ttf
-bool LLTextureFetchWorker::writeToCacheComplete()
-{
- // Complete write to cache
- if (mCacheWriteHandle != LLTextureCache::nullHandle())
- {
- if (!mWritten)
- {
- return false;
- }
- if (mFetcher->mTextureCache->writeComplete(mCacheWriteHandle))
- {
- mCacheWriteHandle = LLTextureCache::nullHandle();
- }
- else
- {
- return false;
- }
- }
- return true;
-}
-
-
-// Threads: Ttf
-void LLTextureFetchWorker::recordTextureStart(bool is_http)
-{
- if (! mMetricsStartTime.value())
- {
- mMetricsStartTime = LLViewerAssetStatsFF::get_timestamp();
- }
- LLViewerAssetStatsFF::record_enqueue(LLViewerAssetType::AT_TEXTURE,
- is_http,
- LLImageBase::TYPE_AVATAR_BAKE == mType);
-}
-
-
-// Threads: Ttf
-void LLTextureFetchWorker::recordTextureDone(bool is_http, F64 byte_count)
-{
- if (mMetricsStartTime.value())
- {
- LLViewerAssetStatsFF::record_response(LLViewerAssetType::AT_TEXTURE,
- is_http,
- LLImageBase::TYPE_AVATAR_BAKE == mType,
- LLViewerAssetStatsFF::get_timestamp() - mMetricsStartTime,
- byte_count);
- mMetricsStartTime = (U32Seconds)0;
- }
- LLViewerAssetStatsFF::record_dequeue(LLViewerAssetType::AT_TEXTURE,
- is_http,
- LLImageBase::TYPE_AVATAR_BAKE == mType);
-}
-
-
-//////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////
-// public
-
-std::string LLTextureFetch::getStateString(S32 state)
-{
- if (state < 0 || state > sizeof(e_state_name) / sizeof(char*))
- {
- return llformat("%d", state);
- }
-
- return e_state_name[state];
-}
-
-LLTextureFetch::LLTextureFetch(LLTextureCache* cache, bool threaded, bool qa_mode)
- : LLWorkerThread("TextureFetch", threaded, true),
- mDebugCount(0),
- mDebugPause(false),
- mPacketCount(0),
- mBadPacketCount(0),
- mQueueMutex(),
- mNetworkQueueMutex(),
- mTextureCache(cache),
- mTextureBandwidth(0),
- mHTTPTextureBits(0),
- mTotalHTTPRequests(0),
- mQAMode(qa_mode),
- mHttpRequest(NULL),
- mHttpOptions(),
- mHttpOptionsWithHeaders(),
- mHttpHeaders(),
- mHttpPolicyClass(LLCore::HttpRequest::DEFAULT_POLICY_ID),
- mHttpMetricsHeaders(),
- mHttpMetricsPolicyClass(LLCore::HttpRequest::DEFAULT_POLICY_ID),
- mTotalCacheReadCount(0U),
- mTotalCacheWriteCount(0U),
- mTotalResourceWaitCount(0U),
- mFetchSource(LLTextureFetch::FROM_ALL),
- mOriginFetchSource(LLTextureFetch::FROM_ALL),
- mTextureInfoMainThread(false)
-{
- mMaxBandwidth = gSavedSettings.getF32("ThrottleBandwidthKBPS");
- mTextureInfo.setLogging(true);
-
- LLAppCoreHttp & app_core_http(LLAppViewer::instance()->getAppCoreHttp());
- mHttpRequest = new LLCore::HttpRequest;
- mHttpOptions = LLCore::HttpOptions::ptr_t(new LLCore::HttpOptions);
- mHttpOptionsWithHeaders = LLCore::HttpOptions::ptr_t(new LLCore::HttpOptions);
- mHttpOptionsWithHeaders->setWantHeaders(true);
- mHttpHeaders = LLCore::HttpHeaders::ptr_t(new LLCore::HttpHeaders);
- mHttpHeaders->append(HTTP_OUT_HEADER_ACCEPT, HTTP_CONTENT_IMAGE_X_J2C);
- mHttpPolicyClass = app_core_http.getPolicy(LLAppCoreHttp::AP_TEXTURE);
- mHttpMetricsHeaders = LLCore::HttpHeaders::ptr_t(new LLCore::HttpHeaders);
- mHttpMetricsHeaders->append(HTTP_OUT_HEADER_CONTENT_TYPE, HTTP_CONTENT_LLSD_XML);
- mHttpMetricsPolicyClass = app_core_http.getPolicy(LLAppCoreHttp::AP_REPORTING);
- mHttpHighWater = HTTP_NONPIPE_REQUESTS_HIGH_WATER;
- mHttpLowWater = HTTP_NONPIPE_REQUESTS_LOW_WATER;
- mHttpSemaphore = 0;
-
- // If that test log has ben requested but not yet created, create it
- if (LLMetricPerformanceTesterBasic::isMetricLogRequested(sTesterName) && !LLMetricPerformanceTesterBasic::getTester(sTesterName))
- {
- sTesterp = new LLTextureFetchTester() ;
- if (!sTesterp->isValid())
- {
- delete sTesterp;
- sTesterp = NULL;
- }
- }
-}
-
-LLTextureFetch::~LLTextureFetch()
-{
- clearDeleteList();
-
- while (! mCommands.empty())
- {
- TFRequest * req(mCommands.front());
- mCommands.erase(mCommands.begin());
- delete req;
- }
-
- mHttpWaitResource.clear();
-
- delete mHttpRequest;
- mHttpRequest = NULL;
-
- // ~LLQueuedThread() called here
-}
-
-S32 LLTextureFetch::createRequest(FTType f_type, const std::string& url, const LLUUID& id, const LLHost& host, F32 priority,
- S32 w, S32 h, S32 c, S32 desired_discard, bool needs_aux, bool can_use_http)
-{
- LL_PROFILE_ZONE_SCOPED;
- if (mDebugPause)
- {
- return -1;
- }
-
- if (f_type == FTT_SERVER_BAKE)
- {
- LL_DEBUGS("Avatar") << " requesting " << id << " " << w << "x" << h << " discard " << desired_discard << " type " << f_type << LL_ENDL;
- }
- LLTextureFetchWorker* worker = getWorker(id) ;
- if (worker)
- {
- if (worker->mHost != host)
- {
- LL_WARNS(LOG_TXT) << "LLTextureFetch::createRequest " << id << " called with multiple hosts: "
- << host << " != " << worker->mHost << LL_ENDL;
- removeRequest(worker, true);
- worker = NULL;
- return -1;
- }
- }
-
- S32 desired_size;
- std::string exten = gDirUtilp->getExtension(url);
- //if (f_type == FTT_SERVER_BAKE)
- if ((f_type == FTT_SERVER_BAKE) && !url.empty() && !exten.empty() && (LLImageBase::getCodecFromExtension(exten) != IMG_CODEC_J2C))
- {
- // SH-4030: This case should be redundant with the following one, just
- // breaking it out here to clarify that it's intended behavior.
- llassert(!url.empty() && (!exten.empty() && LLImageBase::getCodecFromExtension(exten) != IMG_CODEC_J2C));
-
- // Do full requests for baked textures to reduce interim blurring.
- LL_DEBUGS(LOG_TXT) << "full request for " << id << " texture is FTT_SERVER_BAKE" << LL_ENDL;
- desired_size = MAX_IMAGE_DATA_SIZE;
- desired_discard = 0;
- }
- else if (!url.empty() && (!exten.empty() && LLImageBase::getCodecFromExtension(exten) != IMG_CODEC_J2C))
- {
- LL_DEBUGS(LOG_TXT) << "full request for " << id << " exten is not J2C: " << exten << LL_ENDL;
- // Only do partial requests for J2C at the moment
- desired_size = MAX_IMAGE_DATA_SIZE;
- desired_discard = 0;
- }
- else if (desired_discard == 0)
- {
- // if we want the entire image, and we know its size, then get it all
- // (calcDataSizeJ2C() below makes assumptions about how the image
- // was compressed - this code ensures that when we request the entire image,
- // we really do get it.)
- desired_size = MAX_IMAGE_DATA_SIZE;
- }
- else if (w*h*c > 0)
- {
- // If the requester knows the dimensions of the image,
- // this will calculate how much data we need without having to parse the header
-
- desired_size = LLImageJ2C::calcDataSizeJ2C(w, h, c, desired_discard);
- }
- else
- {
- // If the requester knows nothing about the file, we fetch the smallest
- // amount of data at the lowest resolution (highest discard level) possible.
- desired_size = TEXTURE_CACHE_ENTRY_SIZE;
- desired_discard = MAX_DISCARD_LEVEL;
- }
-
-
- if (worker)
- {
- if (worker->wasAborted())
- {
- return -1; // need to wait for previous aborted request to complete
- }
- worker->lockWorkMutex(); // +Mw
- if (worker->mState == LLTextureFetchWorker::DONE && worker->mDesiredSize == llmax(desired_size, TEXTURE_CACHE_ENTRY_SIZE) && worker->mDesiredDiscard == desired_discard) {
- worker->unlockWorkMutex(); // -Mw
-
- return -1; // similar request has failed or is in a transitional state
- }
- worker->mActiveCount++;
- worker->mNeedsAux = needs_aux;
- worker->setImagePriority(priority);
- worker->setDesiredDiscard(desired_discard, desired_size);
- worker->setCanUseHTTP(can_use_http);
-
- //MAINT-4184 url is always empty. Do not set with it.
-
- if (!worker->haveWork())
- {
- worker->setState(LLTextureFetchWorker::INIT);
- worker->unlockWorkMutex(); // -Mw
-
- worker->addWork(0);
- }
- else
- {
- worker->unlockWorkMutex(); // -Mw
- }
- }
- else
- {
- worker = new LLTextureFetchWorker(this, f_type, url, id, host, priority, desired_discard, desired_size);
- lockQueue(); // +Mfq
- mRequestMap[id] = worker;
- unlockQueue(); // -Mfq
-
- worker->lockWorkMutex(); // +Mw
- worker->mActiveCount++;
- worker->mNeedsAux = needs_aux;
- worker->setCanUseHTTP(can_use_http) ;
- worker->unlockWorkMutex(); // -Mw
- }
-
- LL_DEBUGS(LOG_TXT) << "REQUESTED: " << id << " f_type " << fttype_to_string(f_type)
- << " Discard: " << desired_discard << " size " << desired_size << LL_ENDL;
- return desired_discard;
-}
-// Threads: T*
-//
-// protected
-void LLTextureFetch::addToHTTPQueue(const LLUUID& id)
-{
- LL_PROFILE_ZONE_SCOPED;
- LLMutexLock lock(&mNetworkQueueMutex); // +Mfnq
- mHTTPTextureQueue.insert(id);
- mTotalHTTPRequests++;
-} // -Mfnq
-
-// Threads: T*
-void LLTextureFetch::removeFromHTTPQueue(const LLUUID& id, S32Bytes received_size)
-{
- LL_PROFILE_ZONE_SCOPED;
- LLMutexLock lock(&mNetworkQueueMutex); // +Mfnq
- mHTTPTextureQueue.erase(id);
- mHTTPTextureBits += received_size; // Approximate - does not include header bits
-} // -Mfnq
-
-// NB: If you change deleteRequest() you should probably make
-// parallel changes in removeRequest(). They're functionally
-// identical with only argument variations.
-//
-// Threads: T*
-void LLTextureFetch::deleteRequest(const LLUUID& id, bool cancel)
-{
- LL_PROFILE_ZONE_SCOPED;
- lockQueue(); // +Mfq
- LLTextureFetchWorker* worker = getWorkerAfterLock(id);
- if (worker)
- {
- size_t erased_1 = mRequestMap.erase(worker->mID);
- unlockQueue(); // -Mfq
-
- llassert_always(erased_1 > 0) ;
- llassert_always(!(worker->getFlags(LLWorkerClass::WCF_DELETE_REQUESTED))) ;
-
- worker->scheduleDelete();
- }
- else
- {
- unlockQueue(); // -Mfq
- }
-}
-
-// NB: If you change removeRequest() you should probably make
-// parallel changes in deleteRequest(). They're functionally
-// identical with only argument variations.
-//
-// Threads: T*
-void LLTextureFetch::removeRequest(LLTextureFetchWorker* worker, bool cancel)
-{
- LL_PROFILE_ZONE_SCOPED;
- if(!worker)
- {
- return;
- }
-
- lockQueue(); // +Mfq
- size_t erased_1 = mRequestMap.erase(worker->mID);
- unlockQueue(); // -Mfq
-
- llassert_always(erased_1 > 0) ;
- llassert_always(!(worker->getFlags(LLWorkerClass::WCF_DELETE_REQUESTED))) ;
-
- worker->scheduleDelete();
-}
-
-void LLTextureFetch::deleteAllRequests()
-{
- while(1)
- {
- lockQueue();
- if(mRequestMap.empty())
- {
- unlockQueue() ;
- break;
- }
-
- LLTextureFetchWorker* worker = mRequestMap.begin()->second;
- unlockQueue() ;
-
- removeRequest(worker, true);
- }
-}
-
-// Threads: T*
-S32 LLTextureFetch::getNumRequests()
-{
- lockQueue(); // +Mfq
- S32 size = (S32)mRequestMap.size();
- unlockQueue(); // -Mfq
-
- return size;
-}
-
-// Threads: T*
-S32 LLTextureFetch::getNumHTTPRequests()
-{
- mNetworkQueueMutex.lock(); // +Mfq
- S32 size = (S32)mHTTPTextureQueue.size();
- mNetworkQueueMutex.unlock(); // -Mfq
-
- return size;
-}
-
-// Threads: T*
-U32 LLTextureFetch::getTotalNumHTTPRequests()
-{
- mNetworkQueueMutex.lock(); // +Mfq
- U32 size = mTotalHTTPRequests;
- mNetworkQueueMutex.unlock(); // -Mfq
-
- return size;
-}
-
-// call lockQueue() first!
-// Threads: T*
-// Locks: Mfq
-LLTextureFetchWorker* LLTextureFetch::getWorkerAfterLock(const LLUUID& id)
-{
- LL_PROFILE_ZONE_SCOPED;
- LLTextureFetchWorker* res = NULL;
- map_t::iterator iter = mRequestMap.find(id);
- if (iter != mRequestMap.end())
- {
- res = iter->second;
- }
- return res;
-}
-
-// Threads: T*
-LLTextureFetchWorker* LLTextureFetch::getWorker(const LLUUID& id)
-{
- LLMutexLock lock(&mQueueMutex); // +Mfq
-
- return getWorkerAfterLock(id);
-} // -Mfq
-
-
-// Threads: T*
-bool LLTextureFetch::getRequestFinished(const LLUUID& id, S32& discard_level,
- LLPointer<LLImageRaw>& raw, LLPointer<LLImageRaw>& aux,
- LLCore::HttpStatus& last_http_get_status)
-{
- LL_PROFILE_ZONE_SCOPED;
- bool res = false;
- LLTextureFetchWorker* worker = getWorker(id);
- if (worker)
- {
- if (worker->wasAborted())
- {
- res = true;
- }
- else if (!worker->haveWork())
- {
- // Should only happen if we set mDebugPause...
- if (!mDebugPause)
- {
-// LL_WARNS(LOG_TXT) << "Adding work for inactive worker: " << id << LL_ENDL;
- worker->addWork(0);
- }
- }
- else if (worker->checkWork())
- {
- F32 decode_time;
- F32 fetch_time;
- F32 cache_read_time;
- F32 cache_write_time;
- S32 file_size;
- std::map<S32, F32> logged_state_timers;
- F32 skipped_states_time;
- worker->lockWorkMutex(); // +Mw
- last_http_get_status = worker->mGetStatus;
- discard_level = worker->mDecodedDiscard;
- raw = worker->mRawImage;
- aux = worker->mAuxImage;
-
- decode_time = worker->mDecodeTime;
- fetch_time = worker->mFetchTime;
- cache_read_time = worker->mCacheReadTime;
- cache_write_time = worker->mCacheWriteTime;
- file_size = worker->mFileSize;
- worker->mCacheReadTimer.reset();
- worker->mDecodeTimer.reset();
- worker->mCacheWriteTimer.reset();
- worker->mFetchTimer.reset();
- logged_state_timers = worker->mStateTimersMap;
- skipped_states_time = worker->mSkippedStatesTime;
- worker->mStateTimer.reset();
- res = true;
- LL_DEBUGS(LOG_TXT) << id << ": Request Finished. State: " << worker->mState << " Discard: " << discard_level << LL_ENDL;
- worker->unlockWorkMutex(); // -Mw
-
- sample(sTexDecodeLatency, decode_time);
- sample(sTexFetchLatency, fetch_time);
- sample(sCacheReadLatency, cache_read_time);
- sample(sCacheWriteLatency, cache_write_time);
-
- static LLCachedControl<F32> min_time_to_log(gSavedSettings, "TextureFetchMinTimeToLog", 2.f);
- if (fetch_time > min_time_to_log)
- {
- //LL_INFOS() << "fetch_time: " << fetch_time << " cache_read_time: " << cache_read_time << " decode_time: " << decode_time << " cache_write_time: " << cache_write_time << LL_ENDL;
-
- LLTextureFetchTester* tester = (LLTextureFetchTester*)LLMetricPerformanceTesterBasic::getTester(sTesterName);
- if (tester)
- {
- tester->updateStats(logged_state_timers, fetch_time, skipped_states_time, file_size) ;
- }
- }
- }
- else
- {
- worker->lockWorkMutex(); // +Mw
- if ((worker->mDecodedDiscard >= 0) &&
- (worker->mDecodedDiscard < discard_level || discard_level < 0) &&
- (worker->mState >= LLTextureFetchWorker::WAIT_ON_WRITE))
- {
- // Not finished, but data is ready
- discard_level = worker->mDecodedDiscard;
- raw = worker->mRawImage;
- aux = worker->mAuxImage;
- }
- worker->unlockWorkMutex(); // -Mw
- }
- }
- else
- {
- res = true;
- }
- return res;
-}
-
-// Threads: T*
-bool LLTextureFetch::updateRequestPriority(const LLUUID& id, F32 priority)
-{
- LL_PROFILE_ZONE_SCOPED;
- mRequestQueue.tryPost([=]()
- {
- LLTextureFetchWorker* worker = getWorker(id);
- if (worker)
- {
- worker->lockWorkMutex(); // +Mw
- worker->setImagePriority(priority);
- worker->unlockWorkMutex(); // -Mw
- }
- });
-
- return true;
-}
-
-// Replicates and expands upon the base class's
-// getPending() implementation. getPending() and
-// runCondition() replicate one another's logic to
-// an extent and are sometimes used for the same
-// function (deciding whether or not to sleep/pause
-// a thread). So the implementations need to stay
-// in step, at least until this can be refactored and
-// the redundancy eliminated.
-//
-// Threads: T*
-
-//virtual
-size_t LLTextureFetch::getPending()
-{
- LL_PROFILE_ZONE_SCOPED;
- size_t res;
- lockData(); // +Ct
- {
- LLMutexLock lock(&mQueueMutex); // +Mfq
-
- res = mRequestQueue.size();
- res += mCommands.size();
- } // -Mfq
- unlockData(); // -Ct
- return res;
-}
-
-// Locks: Ct
-// virtual
-bool LLTextureFetch::runCondition()
-{
- // Caller is holding the lock on LLThread's condition variable.
-
- // LLQueuedThread, unlike its base class LLThread, makes this a
- // private method which is unfortunate. I want to use it directly
- // but I'm going to have to re-implement the logic here (or change
- // declarations, which I don't want to do right now).
- //
- // Changes here may need to be reflected in getPending().
-
- bool have_no_commands(false);
- {
- LLMutexLock lock(&mQueueMutex); // +Mfq
-
- have_no_commands = mCommands.empty();
- } // -Mfq
-
- return ! (have_no_commands
- && (mRequestQueue.size() == 0 && mIdleThread)); // From base class
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-// Threads: Ttf
-void LLTextureFetch::commonUpdate()
-{
- LL_PROFILE_ZONE_SCOPED;
- // Update low/high water levels based on pipelining. We pick
- // up setting eventually, so the semaphore/request level can
- // fall outside the [0..HIGH_WATER] range. Expect that.
- if (LLAppViewer::instance()->getAppCoreHttp().isPipelined(LLAppCoreHttp::AP_TEXTURE))
- {
- mHttpHighWater = HTTP_PIPE_REQUESTS_HIGH_WATER;
- mHttpLowWater = HTTP_PIPE_REQUESTS_LOW_WATER;
- }
- else
- {
- mHttpHighWater = HTTP_NONPIPE_REQUESTS_HIGH_WATER;
- mHttpLowWater = HTTP_NONPIPE_REQUESTS_LOW_WATER;
- }
-
- // Release waiters
- releaseHttpWaiters();
-
- // Run a cross-thread command, if any.
- cmdDoWork();
-
- // Deliver all completion notifications
- LLCore::HttpStatus status = mHttpRequest->update(0);
- if (! status)
- {
- LL_INFOS_ONCE(LOG_TXT) << "Problem during HTTP servicing. Reason: "
- << status.toString()
- << LL_ENDL;
- }
-}
-
-
-// Threads: Tmain
-
-//virtual
-size_t LLTextureFetch::update(F32 max_time_ms)
-{
- LL_PROFILE_ZONE_SCOPED;
- static LLCachedControl<F32> band_width(gSavedSettings,"ThrottleBandwidthKBPS", 3000.0);
-
- {
- mNetworkQueueMutex.lock(); // +Mfnq
- mMaxBandwidth = band_width();
-
- add(LLStatViewer::TEXTURE_NETWORK_DATA_RECEIVED, mHTTPTextureBits);
- mHTTPTextureBits = (U32Bits)0;
-
- mNetworkQueueMutex.unlock(); // -Mfnq
- }
-
- size_t res = LLWorkerThread::update(max_time_ms);
-
- if (!mThreaded)
- {
- commonUpdate();
- }
-
- return res;
-}
-
-// called in the MAIN thread after the TextureCacheThread shuts down.
-//
-// Threads: Tmain
-void LLTextureFetch::shutDownTextureCacheThread()
-{
- if(mTextureCache)
- {
- llassert_always(mTextureCache->isQuitting() || mTextureCache->isStopped()) ;
- mTextureCache = NULL ;
- }
-}
-
-// Threads: Ttf
-void LLTextureFetch::startThread()
-{
- mTextureInfo.startRecording();
-}
-
-// Threads: Ttf
-void LLTextureFetch::endThread()
-{
- LL_INFOS(LOG_TXT) << "CacheReads: " << mTotalCacheReadCount
- << ", CacheWrites: " << mTotalCacheWriteCount
- << ", ResWaits: " << mTotalResourceWaitCount
- << ", TotalHTTPReq: " << getTotalNumHTTPRequests()
- << LL_ENDL;
-
- mTextureInfo.stopRecording();
-}
-
-// Threads: Ttf
-void LLTextureFetch::threadedUpdate()
-{
- LL_PROFILE_ZONE_SCOPED;
- llassert_always(mHttpRequest);
-
-#if 0
- // Limit update frequency
- const F32 PROCESS_TIME = 0.05f;
- static LLFrameTimer process_timer;
- if (process_timer.getElapsedTimeF32() < PROCESS_TIME)
- {
- return;
- }
- process_timer.reset();
-#endif
-
- commonUpdate();
-
-#if 0
- const F32 INFO_TIME = 1.0f;
- static LLFrameTimer info_timer;
- if (info_timer.getElapsedTimeF32() >= INFO_TIME)
- {
- S32 q = mCurlGetRequest->getQueued();
- if (q > 0)
- {
- LL_INFOS(LOG_TXT) << "Queued gets: " << q << LL_ENDL;
- info_timer.reset();
- }
- }
-#endif
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-// Threads: T*
-// Locks: Mw
-bool LLTextureFetchWorker::insertPacket(S32 index, U8* data, S32 size)
-{
- LL_PROFILE_ZONE_SCOPED;
- mRequestedDeltaTimer.reset();
- if (index >= mTotalPackets)
- {
-// LL_WARNS(LOG_TXT) << "Received Image Packet " << index << " > max: " << mTotalPackets << " for image: " << mID << LL_ENDL;
- return false;
- }
- if (index > 0 && index < mTotalPackets-1 && size != MAX_IMG_PACKET_SIZE)
- {
-// LL_WARNS(LOG_TXT) << "Received bad sized packet: " << index << ", " << size << " != " << MAX_IMG_PACKET_SIZE << " for image: " << mID << LL_ENDL;
- return false;
- }
-
- if (index >= (S32)mPackets.size())
- {
- mPackets.resize(index+1, (PacketData*)NULL); // initializes v to NULL pointers
- }
- else if (mPackets[index] != NULL)
- {
-// LL_WARNS(LOG_TXT) << "Received duplicate packet: " << index << " for image: " << mID << LL_ENDL;
- return false;
- }
-
- mPackets[index] = new PacketData(data, size);
- while (mLastPacket+1 < (S32)mPackets.size() && mPackets[mLastPacket+1] != NULL)
- {
- ++mLastPacket;
- }
- return true;
-}
-
-void LLTextureFetchWorker::setState(e_state new_state)
-{
- LL_PROFILE_ZONE_SCOPED_CATEGORY_TEXTURE;
- if (mFTType == FTT_SERVER_BAKE)
- {
- // NOTE: turning on these log statements is a reliable way to get
- // blurry images fairly frequently. Presumably this is an
- // indication of some subtle timing or locking issue.
-
-// LL_INFOS(LOG_TXT) << "id: " << mID << " FTType: " << mFTType << " disc: " << mDesiredDiscard << " sz: " << mDesiredSize << " state: " << e_state_name[mState] << " => " << e_state_name[new_state] << LL_ENDL;
- }
-
- F32 d_time = mStateTimer.getElapsedTimeF32();
- if (d_time >= 0.0001F)
- {
- if (LOGGED_STATES.count(mState))
- {
- mStateTimersMap[mState] = d_time;
- }
- else
- {
- mSkippedStatesTime += d_time;
- }
- }
-
- mStateTimer.reset();
- mState = new_state;
-}
-
-LLViewerRegion* LLTextureFetchWorker::getRegion()
-{
- LLViewerRegion* region = NULL;
- if (mHost.isInvalid())
- {
- region = gAgent.getRegion();
- }
- else if (LLWorld::instanceExists())
- {
- region = LLWorld::getInstance()->getRegion(mHost);
- }
- return region;
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-// Threads: T*
-bool LLTextureFetch::isFromLocalCache(const LLUUID& id)
-{
- bool from_cache = false ;
-
- LLTextureFetchWorker* worker = getWorker(id);
- if (worker)
- {
- worker->lockWorkMutex(); // +Mw
- from_cache = worker->mInLocalCache;
- worker->unlockWorkMutex(); // -Mw
- }
-
- return from_cache ;
-}
-
-S32 LLTextureFetch::getFetchState(const LLUUID& id)
-{
- S32 state = LLTextureFetchWorker::INVALID;
- LLTextureFetchWorker* worker = getWorker(id);
- if (worker && worker->haveWork())
- {
- state = worker->mState;
- }
-
- return state;
-}
-
-// Threads: T*
-S32 LLTextureFetch::getFetchState(const LLUUID& id, F32& data_progress_p, F32& requested_priority_p,
- U32& fetch_priority_p, F32& fetch_dtime_p, F32& request_dtime_p, bool& can_use_http)
-{
- LL_PROFILE_ZONE_SCOPED;
- S32 state = LLTextureFetchWorker::INVALID;
- F32 data_progress = 0.0f;
- F32 requested_priority = 0.0f;
- F32 fetch_dtime = 999999.f;
- F32 request_dtime = 999999.f;
- U32 fetch_priority = 0;
-
- LLTextureFetchWorker* worker = getWorker(id);
- if (worker && worker->haveWork())
- {
- worker->lockWorkMutex(); // +Mw
- state = worker->mState;
- fetch_dtime = worker->mFetchDeltaTimer.getElapsedTimeF32();
- request_dtime = worker->mRequestedDeltaTimer.getElapsedTimeF32();
- if (worker->mFileSize > 0)
- {
- if (worker->mFormattedImage.notNull())
- {
- data_progress = (F32)worker->mFormattedImage->getDataSize() / (F32)worker->mFileSize;
- }
- }
- if (state >= LLTextureFetchWorker::LOAD_FROM_NETWORK && state <= LLTextureFetchWorker::WAIT_HTTP_REQ)
- {
- requested_priority = worker->mRequestedPriority;
- }
- else
- {
- requested_priority = worker->mImagePriority;
- }
- fetch_priority = worker->getImagePriority();
- can_use_http = worker->getCanUseHTTP() ;
- worker->unlockWorkMutex(); // -Mw
- }
- data_progress_p = data_progress;
- requested_priority_p = requested_priority;
- fetch_priority_p = fetch_priority;
- fetch_dtime_p = fetch_dtime;
- request_dtime_p = request_dtime;
- return state;
-}
-
-void LLTextureFetch::dump()
-{
- LL_INFOS(LOG_TXT) << "LLTextureFetch ACTIVE_HTTP:" << LL_ENDL;
- for (queue_t::const_iterator iter(mHTTPTextureQueue.begin());
- mHTTPTextureQueue.end() != iter;
- ++iter)
- {
- LL_INFOS(LOG_TXT) << " ID: " << (*iter) << LL_ENDL;
- }
-
- LL_INFOS(LOG_TXT) << "LLTextureFetch WAIT_HTTP_RESOURCE:" << LL_ENDL;
- for (wait_http_res_queue_t::const_iterator iter(mHttpWaitResource.begin());
- mHttpWaitResource.end() != iter;
- ++iter)
- {
- LL_INFOS(LOG_TXT) << " ID: " << (*iter) << LL_ENDL;
- }
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-// HTTP Resource Waiting Methods
-
-// Threads: Ttf
-void LLTextureFetch::addHttpWaiter(const LLUUID & tid)
-{
- mNetworkQueueMutex.lock(); // +Mfnq
- mHttpWaitResource.insert(tid);
- mNetworkQueueMutex.unlock(); // -Mfnq
-}
-
-// Threads: Ttf
-void LLTextureFetch::removeHttpWaiter(const LLUUID & tid)
-{
- mNetworkQueueMutex.lock(); // +Mfnq
- wait_http_res_queue_t::iterator iter(mHttpWaitResource.find(tid));
- if (mHttpWaitResource.end() != iter)
- {
- mHttpWaitResource.erase(iter);
- }
- mNetworkQueueMutex.unlock(); // -Mfnq
-}
-
-// Threads: T*
-bool LLTextureFetch::isHttpWaiter(const LLUUID & tid)
-{
- mNetworkQueueMutex.lock(); // +Mfnq
- wait_http_res_queue_t::iterator iter(mHttpWaitResource.find(tid));
- const bool ret(mHttpWaitResource.end() != iter);
- mNetworkQueueMutex.unlock(); // -Mfnq
- return ret;
-}
-
-// Release as many requests as permitted from the WAIT_HTTP_RESOURCE2
-// state to the SEND_HTTP_REQ state based on their current priority.
-//
-// This data structures and code associated with this looks a bit
-// indirect and naive but it's done in the name of safety. An
-// ordered container may become invalid from time to time due to
-// priority changes caused by actions in other threads. State itself
-// could also suffer the same fate with canceled operations. Even
-// done this way, I'm not fully trusting we're truly safe. This
-// module is due for a major refactoring and we'll deal with it then.
-//
-// Threads: Ttf
-// Locks: -Mw (must not hold any worker when called)
-void LLTextureFetch::releaseHttpWaiters()
-{
- LL_PROFILE_ZONE_SCOPED;
- // Use mHttpSemaphore rather than mHTTPTextureQueue.size()
- // to avoid a lock.
- if (mHttpSemaphore >= mHttpLowWater)
- return;
- S32 needed(mHttpHighWater - mHttpSemaphore);
- if (needed <= 0)
- {
- // Would only happen if High/LowWater were changed behind
- // our back. In that case, defer fill until usage falls within
- // limits.
- return;
- }
-
- // Quickly make a copy of all the LLUIDs. Get off the
- // mutex as early as possible.
- typedef std::vector<LLUUID> uuid_vec_t;
- uuid_vec_t tids;
-
- {
- LLMutexLock lock(&mNetworkQueueMutex); // +Mfnq
-
- if (mHttpWaitResource.empty())
- return;
- tids.reserve(mHttpWaitResource.size());
- tids.assign(mHttpWaitResource.begin(), mHttpWaitResource.end());
- } // -Mfnq
-
- // Now lookup the UUUIDs to find valid requests and sort
- // them in priority order, highest to lowest. We're going
- // to modify priority later as a side-effect of releasing
- // these objects. That, in turn, would violate the partial
- // ordering assumption of std::set, std::map, etc. so we
- // don't use those containers. We use a vector and an explicit
- // sort to keep the containers valid later.
- typedef std::vector<LLTextureFetchWorker *> worker_list_t;
- worker_list_t tids2;
-
- tids2.reserve(tids.size());
- for (uuid_vec_t::iterator iter(tids.begin());
- tids.end() != iter;
- ++iter)
- {
- LLTextureFetchWorker * worker(getWorker(* iter));
- if (worker)
- {
- tids2.push_back(worker);
- }
- else
- {
- // If worker isn't found, this should be due to a request
- // for deletion. We signal our recognition that this
- // uuid shouldn't be used for resource waiting anymore by
- // erasing it from the resource waiter list. That allows
- // deleteOK to do final deletion on the worker.
- removeHttpWaiter(* iter);
- }
- }
- tids.clear();
-
- // Sort into priority order, if necessary and only as much as needed
- if (tids2.size() > needed)
- {
- LLTextureFetchWorker::Compare compare;
- std::partial_sort(tids2.begin(), tids2.begin() + needed, tids2.end(), compare);
- }
-
- // Release workers up to the high water mark. Since we aren't
- // holding any locks at this point, we can be in competition
- // with other callers. Do defensive things like getting
- // refreshed counts of requests and checking if someone else
- // has moved any worker state around....
- for (worker_list_t::iterator iter2(tids2.begin()); tids2.end() != iter2; ++iter2)
- {
- LLTextureFetchWorker * worker(* iter2);
-
- worker->lockWorkMutex(); // +Mw
- if (LLTextureFetchWorker::WAIT_HTTP_RESOURCE2 != worker->mState)
- {
- // Not in expected state, remove it, try the next one
- worker->unlockWorkMutex(); // -Mw
- LL_WARNS(LOG_TXT) << "Resource-waited texture " << worker->mID
- << " in unexpected state: " << worker->mState
- << ". Removing from wait list."
- << LL_ENDL;
- removeHttpWaiter(worker->mID);
- continue;
- }
-
- if (! worker->acquireHttpSemaphore())
- {
- // Out of active slots, quit
- worker->unlockWorkMutex(); // -Mw
- break;
- }
-
- worker->setState(LLTextureFetchWorker::SEND_HTTP_REQ);
- worker->unlockWorkMutex(); // -Mw
-
- removeHttpWaiter(worker->mID);
- }
-}
-
-// Threads: T*
-void LLTextureFetch::cancelHttpWaiters()
-{
- mNetworkQueueMutex.lock(); // +Mfnq
- mHttpWaitResource.clear();
- mNetworkQueueMutex.unlock(); // -Mfnq
-}
-
-// Threads: T*
-int LLTextureFetch::getHttpWaitersCount()
-{
- mNetworkQueueMutex.lock(); // +Mfnq
- int ret(mHttpWaitResource.size());
- mNetworkQueueMutex.unlock(); // -Mfnq
- return ret;
-}
-
-
-// Threads: T*
-void LLTextureFetch::updateStateStats(U32 cache_read, U32 cache_write, U32 res_wait)
-{
- LLMutexLock lock(&mQueueMutex); // +Mfq
-
- mTotalCacheReadCount += cache_read;
- mTotalCacheWriteCount += cache_write;
- mTotalResourceWaitCount += res_wait;
-} // -Mfq
-
-
-// Threads: T*
-void LLTextureFetch::getStateStats(U32 * cache_read, U32 * cache_write, U32 * res_wait)
-{
- U32 ret1(0U), ret2(0U), ret3(0U);
-
- {
- LLMutexLock lock(&mQueueMutex); // +Mfq
- ret1 = mTotalCacheReadCount;
- ret2 = mTotalCacheWriteCount;
- ret3 = mTotalResourceWaitCount;
- } // -Mfq
-
- *cache_read = ret1;
- *cache_write = ret2;
- *res_wait = ret3;
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-// cross-thread command methods
-
-// Threads: T*
-void LLTextureFetch::commandSetRegion(U64 region_handle)
-{
- TFReqSetRegion * req = new TFReqSetRegion(region_handle);
-
- cmdEnqueue(req);
-}
-
-// Threads: T*
-void LLTextureFetch::commandSendMetrics(const std::string & caps_url,
- const LLUUID & session_id,
- const LLUUID & agent_id,
- LLSD& stats_sd)
-{
- TFReqSendMetrics * req = new TFReqSendMetrics(caps_url, session_id, agent_id, stats_sd);
-
- cmdEnqueue(req);
-}
-
-// Threads: T*
-void LLTextureFetch::commandDataBreak()
-{
- // The pedantically correct way to implement this is to create a command
- // request object in the above fashion and enqueue it. However, this is
- // simple data of an advisorial not operational nature and this case
- // of shared-write access is tolerable.
-
- LLTextureFetch::svMetricsDataBreak = true;
-}
-
-// Threads: T*
-void LLTextureFetch::cmdEnqueue(TFRequest * req)
-{
- LL_PROFILE_ZONE_SCOPED;
- lockQueue(); // +Mfq
- mCommands.push_back(req);
- unlockQueue(); // -Mfq
-
- unpause();
-}
-
-// Threads: T*
-LLTextureFetch::TFRequest * LLTextureFetch::cmdDequeue()
-{
- LL_PROFILE_ZONE_SCOPED;
- TFRequest * ret = 0;
-
- lockQueue(); // +Mfq
- if (! mCommands.empty())
- {
- ret = mCommands.front();
- mCommands.erase(mCommands.begin());
- }
- unlockQueue(); // -Mfq
-
- return ret;
-}
-
-// Threads: Ttf
-void LLTextureFetch::cmdDoWork()
-{
- LL_PROFILE_ZONE_SCOPED;
- if (mDebugPause)
- {
- return; // debug: don't do any work
- }
-
- TFRequest * req = cmdDequeue();
- if (req)
- {
- // One request per pass should really be enough for this.
- req->doWork(this);
- delete req;
- }
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-// Private (anonymous) class methods implementing the command scheme.
-
-namespace
-{
-
-
-// Example of a simple notification handler for metrics
-// delivery notification. Earlier versions of the code used
-// a Responder that tried harder to detect delivery breaks
-// but it really isn't that important. If someone wants to
-// revisit that effort, here is a place to start.
-class AssetReportHandler : public LLCore::HttpHandler
-{
-public:
-
- // Threads: Ttf
- virtual void onCompleted(LLCore::HttpHandle handle, LLCore::HttpResponse * response)
- {
- LLCore::HttpStatus status(response->getStatus());
-
- if (status)
- {
- LL_DEBUGS(LOG_TXT) << "Successfully delivered asset metrics to grid."
- << LL_ENDL;
- }
- else
- {
- LL_WARNS(LOG_TXT) << "Error delivering asset metrics to grid. Status: "
- << status.toTerseString()
- << ", Reason: " << status.toString() << LL_ENDL;
- }
- }
-}; // end class AssetReportHandler
-
-/**
- * Implements the 'Set Region' command.
- *
- * Thread: Thread1 (TextureFetch)
- */
-bool
-TFReqSetRegion::doWork(LLTextureFetch *)
-{
- LLViewerAssetStatsFF::set_region(mRegionHandle);
-
- return true;
-}
-
-TFReqSendMetrics::TFReqSendMetrics(const std::string & caps_url,
- const LLUUID & session_id,
- const LLUUID & agent_id,
- LLSD& stats_sd):
- LLTextureFetch::TFRequest(),
- mCapsURL(caps_url),
- mSessionID(session_id),
- mAgentID(agent_id),
- mStatsSD(stats_sd),
- mHandler(new AssetReportHandler)
-{}
-
-
-TFReqSendMetrics::~TFReqSendMetrics()
-{
-}
-
-
-/**
- * Implements the 'Send Metrics' command. Takes over
- * ownership of the passed LLViewerAssetStats pointer.
- *
- * Thread: Thread1 (TextureFetch)
- */
-bool
-TFReqSendMetrics::doWork(LLTextureFetch * fetcher)
-{
- LL_PROFILE_ZONE_SCOPED;
-
- //if (! gViewerAssetStatsThread1)
- // return true;
-
- static volatile bool reporting_started(false);
- static volatile S32 report_sequence(0);
-
- // In mStatsSD, we have a copy we own of the LLSD representation
- // of the asset stats. Add some additional fields and ship it off.
-
- static const S32 metrics_data_version = 2;
-
- bool initial_report = !reporting_started;
- mStatsSD["session_id"] = mSessionID;
- mStatsSD["agent_id"] = mAgentID;
- mStatsSD["message"] = "ViewerAssetMetrics";
- mStatsSD["sequence"] = report_sequence;
- mStatsSD["initial"] = initial_report;
- mStatsSD["version"] = metrics_data_version;
- mStatsSD["break"] = static_cast<bool>(LLTextureFetch::svMetricsDataBreak);
-
- // Update sequence number
- if (S32_MAX == ++report_sequence)
- {
- report_sequence = 0;
- }
- reporting_started = true;
-
- // Limit the size of the stats report if necessary.
-
- mStatsSD["truncated"] = truncate_viewer_metrics(10, mStatsSD);
-
- if (gSavedSettings.getBOOL("QAModeMetrics"))
- {
- dump_sequential_xml("metric_asset_stats",mStatsSD);
- }
-
- if (! mCapsURL.empty())
- {
- // Don't care about handle, this is a fire-and-forget operation.
- LLCoreHttpUtil::requestPostWithLLSD(&fetcher->getHttpRequest(),
- fetcher->getMetricsPolicyClass(),
- mCapsURL,
- mStatsSD,
- LLCore::HttpOptions::ptr_t(),
- fetcher->getMetricsHeaders(),
- mHandler);
- LLTextureFetch::svMetricsDataBreak = false;
- }
- else
- {
- LLTextureFetch::svMetricsDataBreak = true;
- }
-
- // In QA mode, Metrics submode, log the result for ease of testing
- if (fetcher->isQAMode())
- {
- LL_INFOS(LOG_TXT) << "ViewerAssetMetrics as submitted\n" << ll_pretty_print_sd(mStatsSD) << LL_ENDL;
- }
-
- return true;
-}
-
-
-bool
-truncate_viewer_metrics(int max_regions, LLSD & metrics)
-{
- static const LLSD::String reg_tag("regions");
- static const LLSD::String duration_tag("duration");
-
- LLSD & reg_map(metrics[reg_tag]);
- if (reg_map.size() <= max_regions)
- {
- return false;
- }
-
- // Build map of region hashes ordered by duration
- typedef std::multimap<LLSD::Real, int> reg_ordered_list_t;
- reg_ordered_list_t regions_by_duration;
-
- int ind(0);
- LLSD::array_const_iterator it_end(reg_map.endArray());
- for (LLSD::array_const_iterator it(reg_map.beginArray()); it_end != it; ++it, ++ind)
- {
- LLSD::Real duration = (*it)[duration_tag].asReal();
- regions_by_duration.insert(reg_ordered_list_t::value_type(duration, ind));
- }
-
- // Build a replacement regions array with the longest-persistence regions
- LLSD new_region(LLSD::emptyArray());
- reg_ordered_list_t::const_reverse_iterator it2_end(regions_by_duration.rend());
- reg_ordered_list_t::const_reverse_iterator it2(regions_by_duration.rbegin());
- for (int i(0); i < max_regions && it2_end != it2; ++i, ++it2)
- {
- new_region.append(reg_map[it2->second]);
- }
- reg_map = new_region;
-
- return true;
-}
-
-} // end of anonymous namespace
-
-LLTextureFetchTester::LLTextureFetchTester() : LLMetricPerformanceTesterBasic(sTesterName)
-{
- mTextureFetchTime = 0;
- mSkippedStatesTime = 0;
- mFileSize = 0;
-}
-
-LLTextureFetchTester::~LLTextureFetchTester()
-{
- outputTestResults();
- LLTextureFetch::sTesterp = NULL;
-}
-
-//virtual
-void LLTextureFetchTester::outputTestRecord(LLSD *sd)
-{
- std::string currentLabel = getCurrentLabelName();
-
- (*sd)[currentLabel]["Texture Fetch Time"] = (LLSD::Real)mTextureFetchTime;
- (*sd)[currentLabel]["File Size"] = (LLSD::Integer)mFileSize;
- (*sd)[currentLabel]["Skipped States Time"] = (LLSD::String)llformat("%.6f", mSkippedStatesTime);
-
- for(auto i : LOGGED_STATES)
- {
- (*sd)[currentLabel][sStateDescs[i]] = mStateTimersMap[i];
- }
-}
-
-void LLTextureFetchTester::updateStats(const std::map<S32, F32> state_timers, const F32 fetch_time, const F32 skipped_states_time, const S32 file_size)
-{
- mTextureFetchTime = fetch_time;
- mStateTimersMap = state_timers;
- mFileSize = file_size;
- mSkippedStatesTime = skipped_states_time;
- outputTestResults();
-}
-
+/**
+ * @file lltexturefetch.cpp
+ * @brief Object which fetches textures from the cache and/or network
+ *
+ * $LicenseInfo:firstyear=2000&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2012-2014, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
+ * $/LicenseInfo$
+ */
+
+#include "llviewerprecompiledheaders.h"
+
+#include <iostream>
+#include <map>
+#include <algorithm>
+
+#include "lltexturefetch.h"
+
+#include "lldir.h"
+#include "llhttpconstants.h"
+#include "llimage.h"
+#include "llimagej2c.h"
+#include "llimageworker.h"
+#include "llworkerthread.h"
+#include "message.h"
+
+#include "llagent.h"
+#include "lltexturecache.h"
+#include "llviewercontrol.h"
+#include "llviewertexturelist.h"
+#include "llviewertexture.h"
+#include "llviewerregion.h"
+#include "llviewerstats.h"
+#include "llviewerstatsrecorder.h"
+#include "llviewerassetstats.h"
+#include "llworld.h"
+#include "llsdparam.h"
+#include "llsdutil.h"
+#include "llstartup.h"
+
+#include "httprequest.h"
+#include "httphandler.h"
+#include "httpresponse.h"
+#include "bufferarray.h"
+#include "bufferstream.h"
+#include "llcorehttputil.h"
+#include "llhttpretrypolicy.h"
+
+LLTrace::CountStatHandle<F64> LLTextureFetch::sCacheHit("texture_cache_hit");
+LLTrace::CountStatHandle<F64> LLTextureFetch::sCacheAttempt("texture_cache_attempt");
+LLTrace::EventStatHandle<LLUnit<F32, LLUnits::Percent> > LLTextureFetch::sCacheHitRate("texture_cache_hits");
+
+LLTrace::SampleStatHandle<F32Seconds> LLTextureFetch::sCacheReadLatency("texture_cache_read_latency");
+LLTrace::SampleStatHandle<F32Seconds> LLTextureFetch::sTexDecodeLatency("texture_decode_latency");
+LLTrace::SampleStatHandle<F32Seconds> LLTextureFetch::sCacheWriteLatency("texture_write_latency");
+LLTrace::SampleStatHandle<F32Seconds> LLTextureFetch::sTexFetchLatency("texture_fetch_latency");
+
+LLTextureFetchTester* LLTextureFetch::sTesterp = NULL ;
+const std::string sTesterName("TextureFetchTester");
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// Introduction
+//
+// This is an attempt to document what's going on in here after-the-fact.
+// It's a sincere attempt to be accurate but there will be mistakes.
+//
+//
+// Purpose
+//
+// What is this module trying to do? It accepts requests to load textures
+// at a given priority and discard level and notifies the caller when done
+// (successfully or not). Additional constraints are:
+//
+// * Support a local texture cache. Don't hit network when possible
+// to avoid it.
+// * Use UDP or HTTP as directed or as fallback. HTTP is tried when
+// not disabled and a URL is available. UDP when a URL isn't
+// available or HTTP attempts fail.
+// * Asynchronous (using threads). Main thread is not to be blocked or
+// burdened.
+// * High concurrency. Many requests need to be in-flight and at various
+// stages of completion.
+// * Tolerate frequent re-prioritizations of requests. Priority is
+// a reflection of a camera's viewpoint and as that viewpoint changes,
+// objects and textures become more and less relevant and that is
+// expressed at this level by priority changes and request cancelations.
+//
+// The caller interfaces that fall out of the above and shape the
+// implementation are:
+// * createRequest - Load j2c image via UDP or HTTP at given discard level and priority
+// * deleteRequest - Request removal of prior request
+// * getRequestFinished - Test if request is finished returning data to caller
+// * updateRequestPriority - Change priority of existing request
+// * getFetchState - Retrieve progress on existing request
+//
+// Everything else in here is mostly plumbing, metrics and debug.
+//
+//
+// The Work Queue
+//
+// The two central classes are LLTextureFetch and LLTextureFetchWorker.
+// LLTextureFetch combines threading with a priority queue of work
+// requests. The priority queue is sorted by a U32 priority derived
+// from the F32 priority in the APIs. The *only* work request that
+// receives service time by this thread is the highest priority
+// request. All others wait until it is complete or a dynamic priority
+// change has re-ordered work.
+//
+// LLTextureFetchWorker implements the work request and is 1:1 with
+// texture fetch requests. Embedded in each is a state machine that
+// walks it through the cache, HTTP, UDP, image decode and retry
+// steps of texture acquisition.
+//
+//
+// Threads
+//
+// Several threads are actively invoking code in this module. They
+// include:
+//
+// 1. Tmain Main thread of execution
+// 2. Ttf LLTextureFetch's worker thread provided by LLQueuedThread
+// 3. Tcurl LLCurl's worker thread (should disappear over time)
+// 4. Ttc LLTextureCache's worker thread
+// 5. Tid Image decoder's worker thread
+// 6. Thl HTTP library's worker thread
+//
+//
+// Mutexes/Condition Variables
+//
+// 1. Mt Mutex defined for LLThread's condition variable (base class of
+// LLTextureFetch)
+// 2. Ct Condition variable for LLThread and used by lock/unlockData().
+// 3. Mwtd Special LLWorkerThread mutex used for request deletion
+// operations (base class of LLTextureFetch)
+// 4. Mfq LLTextureFetch's mutex covering request and command queue
+// data.
+// 5. Mfnq LLTextureFetch's mutex covering udp and http request
+// queue data.
+// 6. Mwc Mutex covering LLWorkerClass's members (base class of
+// LLTextureFetchWorker). One per request.
+// 7. Mw LLTextureFetchWorker's mutex. One per request.
+//
+//
+// Lock Ordering Rules
+//
+// Not an exhaustive list but shows the order of lock acquisition
+// needed to prevent deadlocks. 'A < B' means acquire 'A' before
+// acquiring 'B'.
+//
+// 1. Mw < Mfnq
+// (there are many more...)
+//
+//
+// Method and Member Definitions
+//
+// With the above, we'll try to document what threads can call what
+// methods (using T* for any), what locks must be held on entry and
+// are taken out during execution and what data is covered by which
+// lock (if any). This latter category will be especially prone to
+// error so be skeptical.
+//
+// A line like: "// Locks: M<xxx>" indicates a method that must
+// be invoked by a caller holding the 'M<xxx>' lock. Similarly,
+// "// Threads: T<xxx>" means that a caller should be running in
+// the indicated thread.
+//
+// For data members, a trailing comment like "// M<xxx>" means that
+// the data member is covered by the specified lock. Absence of a
+// comment can mean the member is unlocked or that I didn't bother
+// to do the archaeology. In the case of LLTextureFetchWorker,
+// most data members added by the leaf class are actually covered
+// by the Mw lock. You may also see "// T<xxx>" which means that
+// the member's usage is restricted to one thread (except for
+// perhaps construction and destruction) and so explicit locking
+// isn't used.
+//
+// In code, a trailing comment like "// [-+]M<xxx>" indicates a
+// lock acquision or release point.
+//
+//
+// Worker Lifecycle
+//
+// The threading and responder model makes it very likely that
+// other components are holding on to a pointer to a worker request.
+// So, uncoordinated deletions of requests is a guarantee of memory
+// corruption in a short time. So destroying a request involves
+// invocations's of LLQueuedThread/LLWorkerThread's abort/stop
+// logic that removes workers and puts them ona delete queue for
+// 2-phase destruction. That second phase is deferrable by calls
+// to deleteOK() which only allow final destruction (via dtor)
+// once deleteOK has determined that the request is in a safe
+// state.
+//
+//
+// Worker State Machine
+//
+// "doWork" will be executed for a given worker on its respective
+// LLQueuedThread. If doWork returns true, the worker is treated
+// as completed. If doWork returns false, the worker will be
+// put on the back of the work queue at the start of the next iteration
+// of the mainloop. If a worker is waiting on a resource, it should
+// return false as soon as possible and not block to avoid starving
+// other workers of cpu cycles.
+//
+
+
+
+//////////////////////////////////////////////////////////////////////////////
+
+// Tuning/Parameterization Constants
+
+static const S32 HTTP_PIPE_REQUESTS_HIGH_WATER = 100; // Maximum requests to have active in HTTP (pipelined)
+static const S32 HTTP_PIPE_REQUESTS_LOW_WATER = 50; // Active level at which to refill
+static const S32 HTTP_NONPIPE_REQUESTS_HIGH_WATER = 40;
+static const S32 HTTP_NONPIPE_REQUESTS_LOW_WATER = 20;
+
+// BUG-3323/SH-4375
+// *NOTE: This is a heuristic value. Texture fetches have a habit of using a
+// value of 32MB to indicate 'get the rest of the image'. Certain ISPs and
+// network equipment get confused when they see this in a Range: header. So,
+// if the request end is beyond this value, we issue an open-ended Range:
+// request (e.g. 'Range: <start>-') which seems to fix the problem.
+static const S32 HTTP_REQUESTS_RANGE_END_MAX = 20000000;
+
+// stop after 720 seconds, might be overkill, but cap request can keep going forever.
+static const S32 MAX_CAP_MISSING_RETRIES = 720;
+static const S32 CAP_MISSING_EXPIRATION_DELAY = 1; // seconds
+
+//////////////////////////////////////////////////////////////////////////////
+namespace
+{
+ // The NoOpDeletor is used when passing certain objects (the LLTextureFetchWorker)
+ // in a smart pointer below for passage into
+ // the LLCore::Http libararies. When the smart pointer is destroyed, no
+ // action will be taken since we do not in these cases want the object to
+ // be destroyed at the end of the call.
+ //
+ // *NOTE$: Yes! It is "Deletor"
+ // http://english.stackexchange.com/questions/4733/what-s-the-rule-for-adding-er-vs-or-when-nouning-a-verb
+ // "delete" derives from Latin "deletus"
+ void NoOpDeletor(LLCore::HttpHandler *)
+ { /*NoOp*/ }
+}
+
+static const char* e_state_name[] =
+{
+ "INVALID",
+ "INIT",
+ "LOAD_FROM_TEXTURE_CACHE",
+ "CACHE_POST",
+ "LOAD_FROM_NETWORK",
+ "WAIT_HTTP_RESOURCE",
+ "WAIT_HTTP_RESOURCE2",
+ "SEND_HTTP_REQ",
+ "WAIT_HTTP_REQ",
+ "DECODE_IMAGE",
+ "DECODE_IMAGE_UPDATE",
+ "WRITE_TO_CACHE",
+ "WAIT_ON_WRITE",
+ "DONE"
+};
+
+// Log scope
+static const char * const LOG_TXT = "Texture";
+
+class LLTextureFetchWorker : public LLWorkerClass, public LLCore::HttpHandler
+
+{
+ friend class LLTextureFetch;
+
+private:
+ class CacheReadResponder : public LLTextureCache::ReadResponder
+ {
+ public:
+
+ // Threads: Ttf
+ CacheReadResponder(LLTextureFetch* fetcher, const LLUUID& id, LLImageFormatted* image)
+ : mFetcher(fetcher), mID(id)
+ {
+ setImage(image);
+ }
+
+ // Threads: Ttc
+ virtual void completed(bool success)
+ {
+ LL_PROFILE_ZONE_SCOPED;
+ LLTextureFetchWorker* worker = mFetcher->getWorker(mID);
+ if (worker)
+ {
+ worker->callbackCacheRead(success, mFormattedImage, mImageSize, mImageLocal);
+ }
+ }
+ private:
+ LLTextureFetch* mFetcher;
+ LLUUID mID;
+ };
+
+ class CacheWriteResponder : public LLTextureCache::WriteResponder
+ {
+ public:
+
+ // Threads: Ttf
+ CacheWriteResponder(LLTextureFetch* fetcher, const LLUUID& id)
+ : mFetcher(fetcher), mID(id)
+ {
+ }
+
+ // Threads: Ttc
+ virtual void completed(bool success)
+ {
+ LL_PROFILE_ZONE_SCOPED;
+ LLTextureFetchWorker* worker = mFetcher->getWorker(mID);
+ if (worker)
+ {
+ worker->callbackCacheWrite(success);
+ }
+ }
+ private:
+ LLTextureFetch* mFetcher;
+ LLUUID mID;
+ };
+
+ class DecodeResponder : public LLImageDecodeThread::Responder
+ {
+ public:
+
+ // Threads: Ttf
+ DecodeResponder(LLTextureFetch* fetcher, const LLUUID& id, LLTextureFetchWorker* worker)
+ : mFetcher(fetcher), mID(id)
+ {
+ }
+
+ // Threads: Tid
+ virtual void completed(bool success, const std::string& error_message, LLImageRaw* raw, LLImageRaw* aux, U32 request_id)
+ {
+ LL_PROFILE_ZONE_SCOPED;
+ LLTextureFetchWorker* worker = mFetcher->getWorker(mID);
+ if (worker)
+ {
+ worker->callbackDecoded(success, error_message, raw, aux, request_id);
+ }
+ }
+ private:
+ LLTextureFetch* mFetcher;
+ LLUUID mID;
+ };
+
+ struct Compare
+ {
+ // lhs < rhs
+ bool operator()(const LLTextureFetchWorker* lhs, const LLTextureFetchWorker* rhs) const
+ {
+ // greater priority is "less"
+ return lhs->mImagePriority > rhs->mImagePriority;
+ }
+ };
+
+public:
+
+ // Threads: Ttf
+ /*virtual*/ bool doWork(S32 param); // Called from LLWorkerThread::processRequest()
+
+ // Threads: Ttf
+ /*virtual*/ void finishWork(S32 param, bool completed); // called from finishRequest() (WORK THREAD)
+
+ // Threads: Tmain
+ /*virtual*/ bool deleteOK(); // called from update()
+
+ ~LLTextureFetchWorker();
+
+ // Threads: Ttf
+ // Locks: Mw
+ S32 callbackHttpGet(LLCore::HttpResponse * response,
+ bool partial, bool success);
+
+ // Threads: Ttc
+ void callbackCacheRead(bool success, LLImageFormatted* image,
+ S32 imagesize, bool islocal);
+
+ // Threads: Ttc
+ void callbackCacheWrite(bool success);
+
+ // Threads: Tid
+ void callbackDecoded(bool success, const std::string& error_message, LLImageRaw* raw, LLImageRaw* aux, S32 decode_id);
+
+ // Threads: T*
+ void setGetStatus(LLCore::HttpStatus status, const std::string& reason)
+ {
+ LLMutexLock lock(&mWorkMutex);
+
+ mGetStatus = status;
+ mGetReason = reason;
+ }
+
+ void setCanUseHTTP(bool can_use_http) { mCanUseHTTP = can_use_http; }
+ bool getCanUseHTTP() const { return mCanUseHTTP; }
+
+ void setUrl(const std::string& url) { mUrl = url; }
+
+ LLTextureFetch & getFetcher() { return *mFetcher; }
+
+ // Inherited from LLCore::HttpHandler
+ // Threads: Ttf
+ virtual void onCompleted(LLCore::HttpHandle handle, LLCore::HttpResponse * response);
+
+ enum e_state // mState
+ {
+ // *NOTE: Do not change the order/value of state variables, some code
+ // depends upon specific ordering/adjacency.
+
+ // NOTE: Affects LLTextureBar::draw in lltextureview.cpp (debug hack)
+ INVALID = 0,
+ INIT,
+ LOAD_FROM_TEXTURE_CACHE,
+ CACHE_POST,
+ LOAD_FROM_NETWORK,
+ WAIT_HTTP_RESOURCE, // Waiting for HTTP resources
+ WAIT_HTTP_RESOURCE2, // Waiting for HTTP resources
+ SEND_HTTP_REQ, // Commit to sending as HTTP
+ WAIT_HTTP_REQ, // Request sent, wait for completion
+ DECODE_IMAGE,
+ DECODE_IMAGE_UPDATE,
+ WRITE_TO_CACHE,
+ WAIT_ON_WRITE,
+ DONE
+ };
+
+protected:
+ LLTextureFetchWorker(LLTextureFetch* fetcher, FTType f_type,
+ const std::string& url, const LLUUID& id, const LLHost& host,
+ F32 priority, S32 discard, S32 size);
+
+private:
+
+ // Threads: Tmain
+ /*virtual*/ void startWork(S32 param); // called from addWork() (MAIN THREAD)
+
+ // Threads: Tmain
+ /*virtual*/ void endWork(S32 param, bool aborted); // called from doWork() (MAIN THREAD)
+
+ // Locks: Mw
+ void resetFormattedData();
+
+ // get the relative priority of this worker (should map to max virtual size)
+ F32 getImagePriority() const;
+
+ // Locks: Mw
+ void setImagePriority(F32 priority);
+
+ // Locks: Mw (ctor invokes without lock)
+ void setDesiredDiscard(S32 discard, S32 size);
+
+ // Threads: T*
+ // Locks: Mw
+ bool insertPacket(S32 index, U8* data, S32 size);
+
+ // Locks: Mw
+ void clearPackets();
+
+
+ // Locks: Mw
+ void removeFromCache();
+
+ // Threads: Ttf
+ bool writeToCacheComplete();
+
+ // Threads: Ttf
+ void recordTextureStart(bool is_http);
+
+ // Threads: Ttf
+ void recordTextureDone(bool is_http, F64 byte_count);
+
+ void lockWorkMutex() { mWorkMutex.lock(); }
+ void unlockWorkMutex() { mWorkMutex.unlock(); }
+
+ // Threads: Ttf
+ // Locks: Mw
+ bool acquireHttpSemaphore()
+ {
+ llassert(! mHttpHasResource);
+ if (mFetcher->mHttpSemaphore >= mFetcher->mHttpHighWater)
+ {
+ return false;
+ }
+ mHttpHasResource = true;
+ mFetcher->mHttpSemaphore++;
+ return true;
+ }
+
+ // Threads: Ttf
+ // Locks: Mw
+ void releaseHttpSemaphore()
+ {
+ llassert(mHttpHasResource);
+ mHttpHasResource = false;
+ mFetcher->mHttpSemaphore--;
+ llassert_always(mFetcher->mHttpSemaphore >= 0);
+ }
+
+private:
+ enum e_request_state // mSentRequest
+ {
+ UNSENT = 0,
+ QUEUED = 1,
+ SENT_SIM = 2
+ };
+ enum e_write_to_cache_state //mWriteToCacheState
+ {
+ NOT_WRITE = 0,
+ CAN_WRITE = 1,
+ SHOULD_WRITE = 2
+ };
+
+ e_state mState;
+ void setState(e_state new_state);
+ LLViewerRegion* getRegion();
+
+ e_write_to_cache_state mWriteToCacheState;
+ LLTextureFetch* mFetcher;
+ LLPointer<LLImageFormatted> mFormattedImage;
+ LLPointer<LLImageRaw> mRawImage,
+ mAuxImage;
+ FTType mFTType;
+ LLUUID mID;
+ LLHost mHost;
+ std::string mUrl;
+ U8 mType;
+ F32 mImagePriority; // should map to max virtual size
+ F32 mRequestedPriority;
+ S32 mDesiredDiscard;
+ S32 mSimRequestedDiscard;
+ S32 mRequestedDiscard;
+ S32 mLoadedDiscard;
+ S32 mDecodedDiscard;
+ LLFrameTimer mRequestedDeltaTimer;
+ LLFrameTimer mFetchDeltaTimer;
+ LLTimer mCacheReadTimer;
+ LLTimer mDecodeTimer;
+ LLTimer mCacheWriteTimer;
+ LLTimer mFetchTimer;
+ LLTimer mStateTimer;
+ F32 mCacheReadTime; // time for cache read only
+ F32 mDecodeTime; // time for decode only
+ F32 mCacheWriteTime;
+ F32 mFetchTime; // total time from req to finished fetch
+ std::map<S32, F32> mStateTimersMap;
+ F32 mSkippedStatesTime;
+ LLTextureCache::handle_t mCacheReadHandle,
+ mCacheWriteHandle;
+ S32 mRequestedSize,
+ mRequestedOffset,
+ mDesiredSize,
+ mFileSize,
+ mCachedSize;
+ e_request_state mSentRequest;
+ handle_t mDecodeHandle;
+ bool mLoaded;
+ bool mDecoded;
+ bool mWritten;
+ bool mNeedsAux;
+ bool mHaveAllData;
+ bool mInLocalCache;
+ bool mInCache;
+ bool mCanUseHTTP;
+ S32 mRetryAttempt;
+ S32 mActiveCount;
+ LLCore::HttpStatus mGetStatus;
+ std::string mGetReason;
+ LLAdaptiveRetryPolicy mFetchRetryPolicy;
+ bool mCanUseCapability;
+ LLTimer mRegionRetryTimer;
+ S32 mRegionRetryAttempt;
+ LLUUID mLastRegionId;
+
+
+ // Work Data
+ LLMutex mWorkMutex;
+ struct PacketData
+ {
+ PacketData(U8* data, S32 size)
+ : mData(data), mSize(size)
+ {}
+ ~PacketData() { clearData(); }
+ void clearData() { delete[] mData; mData = NULL; }
+
+ U8* mData;
+ U32 mSize;
+ };
+ std::vector<PacketData*> mPackets;
+ S32 mFirstPacket;
+ S32 mLastPacket;
+ U16 mTotalPackets;
+ U8 mImageCodec;
+
+ LLViewerAssetStats::duration_t mMetricsStartTime;
+
+ LLCore::HttpHandle mHttpHandle; // Handle of any active request
+ LLCore::BufferArray * mHttpBufferArray; // Refcounted pointer to response data
+ S32 mHttpPolicyClass;
+ bool mHttpActive; // Active request to http library
+ U32 mHttpReplySize, // Actual received data size
+ mHttpReplyOffset; // Actual received data offset
+ bool mHttpHasResource; // Counts against Fetcher's mHttpSemaphore
+
+ // State history
+ U32 mCacheReadCount,
+ mCacheWriteCount,
+ mResourceWaitCount; // Requests entering WAIT_HTTP_RESOURCE2
+};
+
+//////////////////////////////////////////////////////////////////////////////
+
+// Cross-thread messaging for asset metrics.
+
+/**
+ * @brief Base class for cross-thread requests made of the fetcher
+ *
+ * I believe the intent of the LLQueuedThread class was to
+ * have these operations derived from LLQueuedThread::QueuedRequest
+ * but the texture fetcher has elected to manage the queue
+ * in its own manner. So these are free-standing objects which are
+ * managed in simple FIFO order on the mCommands queue of the
+ * LLTextureFetch object.
+ *
+ * What each represents is a simple command sent from an
+ * outside thread into the TextureFetch thread to be processed
+ * in order and in a timely fashion (though not an absolute
+ * higher priority than other operations of the thread).
+ * Each operation derives a new class from the base customizing
+ * members, constructors and the doWork() method to effect
+ * the command.
+ *
+ * The flow is one-directional. There are two global instances
+ * of the LLViewerAssetStats collector, one for the main program's
+ * thread pointed to by gViewerAssetStatsMain and one for the
+ * TextureFetch thread pointed to by gViewerAssetStatsThread1.
+ * Common operations has each thread recording metrics events
+ * into the respective collector unconcerned with locking and
+ * the state of any other thread. But when the agent moves into
+ * a different region or the metrics timer expires and a report
+ * needs to be sent back to the grid, messaging across threads
+ * is required to distribute data and perform global actions.
+ * In pseudo-UML, it looks like:
+ *
+ * @verbatim
+ * Main Thread1
+ * . .
+ * . .
+ * +-----+ .
+ * | AM | .
+ * +--+--+ .
+ * +-------+ | .
+ * | Main | +--+--+ .
+ * | | | SRE |---. .
+ * | Stats | +-----+ \ .
+ * | | | \ (uuid) +-----+
+ * | Coll. | +--+--+ `-------->| SR |
+ * +-------+ | MSC | +--+--+
+ * | ^ +-----+ |
+ * | | (uuid) / . +-----+ (uuid)
+ * | `--------' . | MSC |---------.
+ * | . +-----+ |
+ * | +-----+ . v
+ * | | TE | . +-------+
+ * | +--+--+ . | Thd1 |
+ * | | . | |
+ * | +-----+ . | Stats |
+ * `--------->| RSC | . | |
+ * +--+--+ . | Coll. |
+ * | . +-------+
+ * +--+--+ . |
+ * | SME |---. . |
+ * +-----+ \ . |
+ * . \ (clone) +-----+ |
+ * . `-------->| SM | |
+ * . +--+--+ |
+ * . | |
+ * . +-----+ |
+ * . | RSC |<--------'
+ * . +-----+
+ * . |
+ * . +-----+
+ * . | CP |--> HTTP POST
+ * . +-----+
+ * . .
+ * . .
+ *
+ * Key:
+ *
+ * SRE - Set Region Enqueued. Enqueue a 'Set Region' command in
+ * the other thread providing the new UUID of the region.
+ * TFReqSetRegion carries the data.
+ * SR - Set Region. New region UUID is sent to the thread-local
+ * collector.
+ * SME - Send Metrics Enqueued. Enqueue a 'Send Metrics' command
+ * including an ownership transfer of a cloned LLViewerAssetStats.
+ * TFReqSendMetrics carries the data.
+ * SM - Send Metrics. Global metrics reporting operation. Takes
+ * the cloned stats from the command, merges it with the
+ * thread's local stats, converts to LLSD and sends it on
+ * to the grid.
+ * AM - Agent Moved. Agent has completed some sort of move to a
+ * new region.
+ * TE - Timer Expired. Metrics timer has expired (on the order
+ * of 10 minutes).
+ * CP - CURL Post
+ * MSC - Modify Stats Collector. State change in the thread-local
+ * collector. Typically a region change which affects the
+ * global pointers used to find the 'current stats'.
+ * RSC - Read Stats Collector. Extract collector data cloning it
+ * (i.e. deep copy) when necessary.
+ * @endverbatim
+ *
+ */
+class LLTextureFetch::TFRequest // : public LLQueuedThread::QueuedRequest
+{
+public:
+ // Default ctors and assignment operator are correct.
+
+ virtual ~TFRequest()
+ {}
+
+ // Patterned after QueuedRequest's method but expected behavior
+ // is different. Always expected to complete on the first call
+ // and work dispatcher will assume the same and delete the
+ // request after invocation.
+ virtual bool doWork(LLTextureFetch * fetcher) = 0;
+};
+
+namespace
+{
+
+/**
+ * @brief Implements a 'Set Region' cross-thread command.
+ *
+ * When an agent moves to a new region, subsequent metrics need
+ * to be binned into a new or existing stats collection in 1:1
+ * relationship with the region. We communicate this region
+ * change across the threads involved in the communication with
+ * this message.
+ *
+ * Corresponds to LLTextureFetch::commandSetRegion()
+ */
+class TFReqSetRegion : public LLTextureFetch::TFRequest
+{
+public:
+ TFReqSetRegion(U64 region_handle)
+ : LLTextureFetch::TFRequest(),
+ mRegionHandle(region_handle)
+ {}
+ TFReqSetRegion & operator=(const TFReqSetRegion &); // Not defined
+
+ virtual ~TFReqSetRegion()
+ {}
+
+ virtual bool doWork(LLTextureFetch * fetcher);
+
+public:
+ const U64 mRegionHandle;
+};
+
+
+/**
+ * @brief Implements a 'Send Metrics' cross-thread command.
+ *
+ * This is the big operation. The main thread gathers metrics
+ * for a period of minutes into LLViewerAssetStats and other
+ * objects then makes a snapshot of the data by cloning the
+ * collector. This command transfers the clone, along with a few
+ * additional arguments (UUIDs), handing ownership to the
+ * TextureFetch thread. It then merges its own data into the
+ * cloned copy, converts to LLSD and kicks off an HTTP POST of
+ * the resulting data to the currently active metrics collector.
+ *
+ * Corresponds to LLTextureFetch::commandSendMetrics()
+ */
+class TFReqSendMetrics : public LLTextureFetch::TFRequest
+{
+public:
+ /**
+ * Construct the 'Send Metrics' command to have the TextureFetch
+ * thread add and log metrics data.
+ *
+ * @param caps_url URL of a "ViewerMetrics" Caps target
+ * to receive the data. Does not have to
+ * be associated with a particular region.
+ *
+ * @param session_id UUID of the agent's session.
+ *
+ * @param agent_id UUID of the agent. (Being pure here...)
+ *
+ * @param main_stats Pointer to a clone of the main thread's
+ * LLViewerAssetStats data. Thread1 takes
+ * ownership of the copy and disposes of it
+ * when done.
+ */
+ TFReqSendMetrics(const std::string & caps_url,
+ const LLUUID & session_id,
+ const LLUUID & agent_id,
+ LLSD& stats_sd);
+ TFReqSendMetrics & operator=(const TFReqSendMetrics &); // Not defined
+
+ virtual ~TFReqSendMetrics();
+
+ virtual bool doWork(LLTextureFetch * fetcher);
+
+public:
+ const std::string mCapsURL;
+ const LLUUID mSessionID;
+ const LLUUID mAgentID;
+ LLSD mStatsSD;
+
+private:
+ LLCore::HttpHandler::ptr_t mHandler;
+};
+
+/*
+ * Examines the merged viewer metrics report and if found to be too long,
+ * will attempt to truncate it in some reasonable fashion.
+ *
+ * @param max_regions Limit of regions allowed in report.
+ *
+ * @param metrics Full, merged viewer metrics report.
+ *
+ * @returns If data was truncated, returns true.
+ */
+bool truncate_viewer_metrics(int max_regions, LLSD & metrics);
+
+} // end of anonymous namespace
+
+
+//////////////////////////////////////////////////////////////////////////////
+
+const char* sStateDescs[] = {
+ "INVALID",
+ "INIT",
+ "LOAD_FROM_TEXTURE_CACHE",
+ "CACHE_POST",
+ "LOAD_FROM_NETWORK",
+ "WAIT_HTTP_RESOURCE",
+ "WAIT_HTTP_RESOURCE2",
+ "SEND_HTTP_REQ",
+ "WAIT_HTTP_REQ",
+ "DECODE_IMAGE",
+ "DECODE_IMAGE_UPDATE",
+ "WRITE_TO_CACHE",
+ "WAIT_ON_WRITE",
+ "DONE"
+};
+
+const std::set<S32> LOGGED_STATES = { LLTextureFetchWorker::LOAD_FROM_TEXTURE_CACHE, LLTextureFetchWorker::LOAD_FROM_NETWORK,
+ LLTextureFetchWorker::WAIT_HTTP_REQ, LLTextureFetchWorker::DECODE_IMAGE_UPDATE, LLTextureFetchWorker::WAIT_ON_WRITE };
+
+// static
+volatile bool LLTextureFetch::svMetricsDataBreak(true); // Start with a data break
+
+// called from MAIN THREAD
+
+LLTextureFetchWorker::LLTextureFetchWorker(LLTextureFetch* fetcher,
+ FTType f_type, // Fetched image type
+ const std::string& url, // Optional URL
+ const LLUUID& id, // Image UUID
+ const LLHost& host, // Simulator host
+ F32 priority, // Priority
+ S32 discard, // Desired discard
+ S32 size) // Desired size
+ : LLWorkerClass(fetcher, "TextureFetch"),
+ LLCore::HttpHandler(),
+ mState(INIT),
+ mWriteToCacheState(NOT_WRITE),
+ mFetcher(fetcher),
+ mFTType(f_type),
+ mID(id),
+ mHost(host),
+ mUrl(url),
+ mImagePriority(priority),
+ mRequestedPriority(0.f),
+ mDesiredDiscard(-1),
+ mSimRequestedDiscard(-1),
+ mRequestedDiscard(-1),
+ mLoadedDiscard(-1),
+ mDecodedDiscard(-1),
+ mCacheReadTime(0.f),
+ mCacheWriteTime(0.f),
+ mDecodeTime(0.f),
+ mFetchTime(0.f),
+ mCacheReadHandle(LLTextureCache::nullHandle()),
+ mCacheWriteHandle(LLTextureCache::nullHandle()),
+ mRequestedSize(0),
+ mRequestedOffset(0),
+ mDesiredSize(TEXTURE_CACHE_ENTRY_SIZE),
+ mFileSize(0),
+ mSkippedStatesTime(0),
+ mCachedSize(0),
+ mLoaded(false),
+ mSentRequest(UNSENT),
+ mDecodeHandle(0),
+ mDecoded(false),
+ mWritten(false),
+ mNeedsAux(false),
+ mHaveAllData(false),
+ mInLocalCache(false),
+ mInCache(false),
+ mCanUseHTTP(true),
+ mRetryAttempt(0),
+ mActiveCount(0),
+ mWorkMutex(),
+ mFirstPacket(0),
+ mLastPacket(-1),
+ mTotalPackets(0),
+ mImageCodec(IMG_CODEC_INVALID),
+ mMetricsStartTime(0),
+ mHttpHandle(LLCORE_HTTP_HANDLE_INVALID),
+ mHttpBufferArray(NULL),
+ mHttpPolicyClass(mFetcher->mHttpPolicyClass),
+ mHttpActive(false),
+ mHttpReplySize(0U),
+ mHttpReplyOffset(0U),
+ mHttpHasResource(false),
+ mCacheReadCount(0U),
+ mCacheWriteCount(0U),
+ mResourceWaitCount(0U),
+ mFetchRetryPolicy(10.f,3600.f,2.f,10),
+ mCanUseCapability(true),
+ mRegionRetryAttempt(0)
+{
+ mType = host.isOk() ? LLImageBase::TYPE_AVATAR_BAKE : LLImageBase::TYPE_NORMAL;
+// LL_INFOS(LOG_TXT) << "Create: " << mID << " mHost:" << host << " Discard=" << discard << LL_ENDL;
+ if (!mFetcher->mDebugPause)
+ {
+ addWork(0);
+ }
+ setDesiredDiscard(discard, size);
+}
+
+LLTextureFetchWorker::~LLTextureFetchWorker()
+{
+// LL_INFOS(LOG_TXT) << "Destroy: " << mID
+// << " Decoded=" << mDecodedDiscard
+// << " Requested=" << mRequestedDiscard
+// << " Desired=" << mDesiredDiscard << LL_ENDL;
+ llassert_always(!haveWork());
+
+ lockWorkMutex(); // +Mw (should be useless)
+ if (mHttpHasResource)
+ {
+ // Last-chance catchall to recover the resource. Using an
+ // atomic datatype solely because this can be running in
+ // another thread.
+ releaseHttpSemaphore();
+ }
+ if (mHttpActive)
+ {
+ // Issue a cancel on a live request...
+ mFetcher->getHttpRequest().requestCancel(mHttpHandle, LLCore::HttpHandler::ptr_t());
+ }
+ if (mCacheReadHandle != LLTextureCache::nullHandle() && mFetcher->mTextureCache)
+ {
+ mFetcher->mTextureCache->readComplete(mCacheReadHandle, true);
+ }
+ if (mCacheWriteHandle != LLTextureCache::nullHandle() && mFetcher->mTextureCache)
+ {
+ mFetcher->mTextureCache->writeComplete(mCacheWriteHandle, true);
+ }
+ mFormattedImage = NULL;
+ clearPackets();
+ if (mHttpBufferArray)
+ {
+ mHttpBufferArray->release();
+ mHttpBufferArray = NULL;
+ }
+ unlockWorkMutex(); // -Mw
+ mFetcher->removeFromHTTPQueue(mID, (S32Bytes)0);
+ mFetcher->removeHttpWaiter(mID);
+ mFetcher->updateStateStats(mCacheReadCount, mCacheWriteCount, mResourceWaitCount);
+}
+
+// Locks: Mw
+void LLTextureFetchWorker::clearPackets()
+{
+ for_each(mPackets.begin(), mPackets.end(), DeletePointer());
+ mPackets.clear();
+ mTotalPackets = 0;
+ mLastPacket = -1;
+ mFirstPacket = 0;
+}
+
+// Locks: Mw (ctor invokes without lock)
+void LLTextureFetchWorker::setDesiredDiscard(S32 discard, S32 size)
+{
+ bool prioritize = false;
+ if (mDesiredDiscard != discard)
+ {
+ if (!haveWork())
+ {
+ if (!mFetcher->mDebugPause)
+ {
+ addWork(0);
+ }
+ }
+ else if (mDesiredDiscard < discard)
+ {
+ prioritize = true;
+ }
+ mDesiredDiscard = discard;
+ mDesiredSize = size;
+ }
+ else if (size > mDesiredSize)
+ {
+ mDesiredSize = size;
+ prioritize = true;
+ }
+ mDesiredSize = llmax(mDesiredSize, TEXTURE_CACHE_ENTRY_SIZE);
+ if ((prioritize && mState == INIT) || mState == DONE)
+ {
+ setState(INIT);
+ }
+}
+
+// Locks: Mw
+void LLTextureFetchWorker::setImagePriority(F32 priority)
+{
+ mImagePriority = priority; //should map to max virtual size, abort if zero
+}
+
+// Locks: Mw
+void LLTextureFetchWorker::resetFormattedData()
+{
+ if (mHttpBufferArray)
+ {
+ mHttpBufferArray->release();
+ mHttpBufferArray = NULL;
+ }
+ if (mFormattedImage.notNull())
+ {
+ mFormattedImage->deleteData();
+ }
+ mHttpReplySize = 0;
+ mHttpReplyOffset = 0;
+ mHaveAllData = false;
+}
+
+F32 LLTextureFetchWorker::getImagePriority() const
+{
+ return mImagePriority;
+}
+
+// Threads: Tmain
+void LLTextureFetchWorker::startWork(S32 param)
+{
+ llassert(mFormattedImage.isNull());
+}
+
+// Threads: Ttf
+bool LLTextureFetchWorker::doWork(S32 param)
+{
+ LL_PROFILE_ZONE_SCOPED_CATEGORY_THREAD;
+ if (gNonInteractive)
+ {
+ return true;
+ }
+ static const LLCore::HttpStatus http_not_found(HTTP_NOT_FOUND); // 404
+ static const LLCore::HttpStatus http_service_unavail(HTTP_SERVICE_UNAVAILABLE); // 503
+ static const LLCore::HttpStatus http_not_sat(HTTP_REQUESTED_RANGE_NOT_SATISFIABLE); // 416;
+
+ LLMutexLock lock(&mWorkMutex); // +Mw
+
+ if ((mFetcher->isQuitting() || getFlags(LLWorkerClass::WCF_DELETE_REQUESTED)))
+ {
+ if (mState < DECODE_IMAGE)
+ {
+ LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - state < decode");
+ return true; // abort
+ }
+ }
+
+ if (mImagePriority < F_ALMOST_ZERO)
+ {
+ if (mState == INIT || mState == LOAD_FROM_NETWORK)
+ {
+ LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - priority < 0");
+ LL_DEBUGS(LOG_TXT) << mID << " abort: mImagePriority < F_ALMOST_ZERO" << LL_ENDL;
+ return true; // abort
+ }
+ }
+ if (mState > CACHE_POST && !mCanUseCapability && mCanUseHTTP)
+ {
+ if (mRegionRetryAttempt > MAX_CAP_MISSING_RETRIES)
+ {
+ mCanUseHTTP = false;
+ }
+ else if (!mRegionRetryTimer.hasExpired())
+ {
+ return false;
+ }
+ // else retry
+ }
+ if(mState > CACHE_POST && !mCanUseHTTP)
+ {
+ LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - state > cache_post");
+ //nowhere to get data, abort.
+ LL_WARNS(LOG_TXT) << mID << " abort, nowhere to get data" << LL_ENDL;
+ return true ;
+ }
+
+ if (mFetcher->mDebugPause)
+ {
+ return false; // debug: don't do any work
+ }
+ if (mID == mFetcher->mDebugID)
+ {
+ mFetcher->mDebugCount++; // for setting breakpoints
+ }
+
+ if (mState != DONE)
+ {
+ mFetchDeltaTimer.reset();
+ }
+
+ if (mState == INIT)
+ {
+ LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - INIT");
+ mStateTimer.reset();
+ mFetchTimer.reset();
+ for(auto i : LOGGED_STATES)
+ {
+ mStateTimersMap[i] = 0;
+ }
+ mSkippedStatesTime = 0;
+ mRawImage = NULL ;
+ mRequestedDiscard = -1;
+ mLoadedDiscard = -1;
+ mDecodedDiscard = -1;
+ mRequestedSize = 0;
+ mRequestedOffset = 0;
+ mFileSize = 0;
+ mCachedSize = 0;
+ mLoaded = false;
+ mSentRequest = UNSENT;
+ mDecoded = false;
+ mWritten = false;
+ if (mHttpBufferArray)
+ {
+ mHttpBufferArray->release();
+ mHttpBufferArray = NULL;
+ }
+ mHttpReplySize = 0;
+ mHttpReplyOffset = 0;
+ mHaveAllData = false;
+ clearPackets(); // TODO: Shouldn't be necessary
+ mCacheReadHandle = LLTextureCache::nullHandle();
+ mCacheWriteHandle = LLTextureCache::nullHandle();
+ setState(LOAD_FROM_TEXTURE_CACHE);
+ mInCache = false;
+ mDesiredSize = llmax(mDesiredSize, TEXTURE_CACHE_ENTRY_SIZE); // min desired size is TEXTURE_CACHE_ENTRY_SIZE
+ LL_DEBUGS(LOG_TXT) << mID << ": Priority: " << llformat("%8.0f",mImagePriority)
+ << " Desired Discard: " << mDesiredDiscard << " Desired Size: " << mDesiredSize << LL_ENDL;
+
+ // fall through
+ }
+
+ if (mState == LOAD_FROM_TEXTURE_CACHE)
+ {
+ LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - LOAD_FROM_TEXTURE_CACHE");
+ if (mCacheReadHandle == LLTextureCache::nullHandle())
+ {
+ S32 offset = mFormattedImage.notNull() ? mFormattedImage->getDataSize() : 0;
+ S32 size = mDesiredSize - offset;
+ if (size <= 0)
+ {
+ setState(CACHE_POST);
+ return doWork(param);
+ // return false;
+ }
+ mFileSize = 0;
+ mLoaded = false;
+
+ add(LLTextureFetch::sCacheAttempt, 1.0);
+
+ if (mUrl.compare(0, 7, "file://") == 0)
+ {
+ // read file from local disk
+ ++mCacheReadCount;
+ std::string filename = mUrl.substr(7, std::string::npos);
+ CacheReadResponder* responder = new CacheReadResponder(mFetcher, mID, mFormattedImage);
+ mCacheReadTimer.reset();
+ mCacheReadHandle = mFetcher->mTextureCache->readFromCache(filename, mID, offset, size, responder);
+
+ }
+ else if ((mUrl.empty() || mFTType==FTT_SERVER_BAKE) && mFetcher->canLoadFromCache())
+ {
+ ++mCacheReadCount;
+ CacheReadResponder* responder = new CacheReadResponder(mFetcher, mID, mFormattedImage);
+ mCacheReadTimer.reset();
+ mCacheReadHandle = mFetcher->mTextureCache->readFromCache(mID,
+ offset, size, responder);;
+ }
+ else if(!mUrl.empty() && mCanUseHTTP)
+ {
+ setState(WAIT_HTTP_RESOURCE);
+ }
+ else
+ {
+ setState(LOAD_FROM_NETWORK);
+ }
+ }
+
+ if (mLoaded)
+ {
+ // Make sure request is complete. *TODO: make this auto-complete
+ if (mFetcher->mTextureCache->readComplete(mCacheReadHandle, false))
+ {
+ mCacheReadHandle = LLTextureCache::nullHandle();
+ setState(CACHE_POST);
+ add(LLTextureFetch::sCacheHit, 1.0);
+ mCacheReadTime = mCacheReadTimer.getElapsedTimeF32();
+ // fall through
+ }
+ else
+ {
+ //
+ //This should never happen
+ //
+ LL_DEBUGS(LOG_TXT) << mID << " this should never happen" << LL_ENDL;
+ return false;
+ }
+ }
+ else
+ {
+ return false;
+ }
+ }
+
+ if (mState == CACHE_POST)
+ {
+ LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - CACHE_POST");
+ mCachedSize = mFormattedImage.notNull() ? mFormattedImage->getDataSize() : 0;
+ // Successfully loaded
+ if ((mCachedSize >= mDesiredSize) || mHaveAllData)
+ {
+ // we have enough data, decode it
+ llassert_always(mFormattedImage->getDataSize() > 0);
+ mLoadedDiscard = mDesiredDiscard;
+ if (mLoadedDiscard < 0)
+ {
+ LL_WARNS(LOG_TXT) << mID << " mLoadedDiscard is " << mLoadedDiscard
+ << ", should be >=0" << LL_ENDL;
+ }
+ setState(DECODE_IMAGE);
+ mInCache = true;
+ mWriteToCacheState = NOT_WRITE ;
+ LL_DEBUGS(LOG_TXT) << mID << ": Cached. Bytes: " << mFormattedImage->getDataSize()
+ << " Size: " << llformat("%dx%d",mFormattedImage->getWidth(),mFormattedImage->getHeight())
+ << " Desired Discard: " << mDesiredDiscard << " Desired Size: " << mDesiredSize << LL_ENDL;
+ record(LLTextureFetch::sCacheHitRate, LLUnits::Ratio::fromValue(1));
+ }
+ else
+ {
+ if (mUrl.compare(0, 7, "file://") == 0)
+ {
+ // failed to load local file, we're done.
+ LL_WARNS(LOG_TXT) << mID << ": abort, failed to load local file " << mUrl << LL_ENDL;
+ return true;
+ }
+ // need more data
+ else
+ {
+ LL_DEBUGS(LOG_TXT) << mID << ": Not in Cache" << LL_ENDL;
+ setState(LOAD_FROM_NETWORK);
+ }
+ record(LLTextureFetch::sCacheHitRate, LLUnits::Ratio::fromValue(0));
+ // fall through
+ }
+ }
+
+ if (mState == LOAD_FROM_NETWORK)
+ {
+ LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - LOAD_FROM_NETWORK");
+ // Check for retries to previous server failures.
+ F32 wait_seconds;
+ if (mFetchRetryPolicy.shouldRetry(wait_seconds))
+ {
+ if (wait_seconds <= 0.0)
+ {
+ LL_INFOS(LOG_TXT) << mID << " retrying now" << LL_ENDL;
+ }
+ else
+ {
+ //LL_INFOS(LOG_TXT) << mID << " waiting to retry for " << wait_seconds << " seconds" << LL_ENDL;
+ return false;
+ }
+ }
+
+ static LLCachedControl<bool> use_http(gSavedSettings, "ImagePipelineUseHTTP", true);
+
+// if (mHost.isInvalid()) get_url = false;
+ if ( use_http && mCanUseHTTP && mUrl.empty())//get http url.
+ {
+ LLViewerRegion* region = getRegion();
+ if (region)
+ {
+ std::string http_url = region->getViewerAssetUrl();
+ if (!http_url.empty())
+ {
+ if (mFTType != FTT_DEFAULT)
+ {
+ LL_WARNS(LOG_TXT) << "Trying to fetch a texture of non-default type by UUID. This probably won't work!" << LL_ENDL;
+ }
+ setUrl(http_url + "/?texture_id=" + mID.asString().c_str());
+ LL_DEBUGS(LOG_TXT) << "Texture URL: " << mUrl << LL_ENDL;
+ mWriteToCacheState = CAN_WRITE ; //because this texture has a fixed texture id.
+ mCanUseCapability = true;
+ mRegionRetryAttempt = 0;
+ mLastRegionId = region->getRegionID();
+ }
+ else
+ {
+ mCanUseCapability = false;
+ mRegionRetryAttempt++;
+ mRegionRetryTimer.setTimerExpirySec(CAP_MISSING_EXPIRATION_DELAY);
+ // ex: waiting for caps
+ LL_INFOS_ONCE(LOG_TXT) << "Texture not available via HTTP: empty URL." << LL_ENDL;
+ }
+ }
+ else
+ {
+ mCanUseCapability = false;
+ mRegionRetryAttempt++;
+ mRegionRetryTimer.setTimerExpirySec(CAP_MISSING_EXPIRATION_DELAY);
+ // This will happen if not logged in or if a region deoes not have HTTP Texture enabled
+ //LL_WARNS(LOG_TXT) << "Region not found for host: " << mHost << LL_ENDL;
+ LL_INFOS_ONCE(LOG_TXT) << "Texture not available via HTTP: no region " << mUrl << LL_ENDL;
+ }
+ }
+ else if (mFTType == FTT_SERVER_BAKE)
+ {
+ mWriteToCacheState = CAN_WRITE;
+ }
+
+ if (mCanUseCapability && mCanUseHTTP && !mUrl.empty())
+ {
+ setState(WAIT_HTTP_RESOURCE);
+ if(mWriteToCacheState != NOT_WRITE)
+ {
+ mWriteToCacheState = CAN_WRITE ;
+ }
+ // don't return, fall through to next state
+ }
+ else
+ {
+ return false;
+ }
+ }
+
+ if (mState == WAIT_HTTP_RESOURCE)
+ {
+ LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - WAIT_HTTP_RESOURCE");
+ // NOTE:
+ // control the number of the http requests issued for:
+ // 1, not openning too many file descriptors at the same time;
+ // 2, control the traffic of http so udp gets bandwidth.
+ //
+ // If it looks like we're busy, keep this request here.
+ // Otherwise, advance into the HTTP states.
+
+ if (!mHttpHasResource && // sometimes we get into this state when we already have an http resource, go ahead and send the request in that case
+ (mFetcher->getHttpWaitersCount() || ! acquireHttpSemaphore()))
+ {
+ setState(WAIT_HTTP_RESOURCE2);
+ mFetcher->addHttpWaiter(this->mID);
+ ++mResourceWaitCount;
+ return false;
+ }
+
+ setState(SEND_HTTP_REQ);
+ // *NOTE: You must invoke releaseHttpSemaphore() if you transition
+ // to a state other than SEND_HTTP_REQ or WAIT_HTTP_REQ or abort
+ // the request.
+ }
+
+ if (mState == WAIT_HTTP_RESOURCE2)
+ {
+ LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - WAIT_HTTP_RESOURCE2");
+ // Just idle it if we make it to the head...
+ return false;
+ }
+
+ if (mState == SEND_HTTP_REQ)
+ {
+ LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - SEND_HTTP_REQ");
+ // Also used in llmeshrepository
+ static LLCachedControl<bool> disable_range_req(gSavedSettings, "HttpRangeRequestsDisable", false);
+
+ if (! mCanUseHTTP)
+ {
+ releaseHttpSemaphore();
+ LL_WARNS(LOG_TXT) << mID << " abort: SEND_HTTP_REQ but !mCanUseHTTP" << LL_ENDL;
+ return true; // abort
+ }
+
+ S32 cur_size = 0;
+ if (mFormattedImage.notNull())
+ {
+ cur_size = mFormattedImage->getDataSize(); // amount of data we already have
+ if (mFormattedImage->getDiscardLevel() == 0)
+ {
+ if (cur_size > 0)
+ {
+ // We already have all the data, just decode it
+ mLoadedDiscard = mFormattedImage->getDiscardLevel();
+ if (mLoadedDiscard < 0)
+ {
+ LL_WARNS(LOG_TXT) << mID << " mLoadedDiscard is " << mLoadedDiscard
+ << ", should be >=0" << LL_ENDL;
+ }
+ setState(DECODE_IMAGE);
+ releaseHttpSemaphore();
+ //return false;
+ return doWork(param);
+ }
+ else
+ {
+ releaseHttpSemaphore();
+ LL_WARNS(LOG_TXT) << mID << " SEND_HTTP_REQ abort: cur_size " << cur_size << " <=0" << LL_ENDL;
+ return true; // abort.
+ }
+ }
+ }
+ mRequestedSize = mDesiredSize;
+ mRequestedDiscard = mDesiredDiscard;
+ mRequestedSize -= cur_size;
+ mRequestedOffset = cur_size;
+ if (mRequestedOffset)
+ {
+ // Texture fetching often issues 'speculative' loads that
+ // start beyond the end of the actual asset. Some cache/web
+ // systems, e.g. Varnish, will respond to this not with a
+ // 416 but with a 200 and the entire asset in the response
+ // body. By ensuring that we always have a partially
+ // satisfiable Range request, we avoid that hit to the network.
+ // We just have to deal with the overlapping data which is made
+ // somewhat harder by the fact that grid services don't necessarily
+ // return the Content-Range header on 206 responses. *Sigh*
+ mRequestedOffset -= 1;
+ mRequestedSize += 1;
+ }
+ mHttpHandle = LLCORE_HTTP_HANDLE_INVALID;
+
+ if (mUrl.empty())
+ {
+ // *FIXME: This should not be reachable except it has become
+ // so after some recent 'work'. Need to track this down
+ // and illuminate the unenlightened.
+ LL_WARNS(LOG_TXT) << "HTTP GET request failed for " << mID
+ << " on empty URL." << LL_ENDL;
+ resetFormattedData();
+ releaseHttpSemaphore();
+ return true; // failed
+ }
+
+ mRequestedDeltaTimer.reset();
+ mLoaded = false;
+ mGetStatus = LLCore::HttpStatus();
+ mGetReason.clear();
+ LL_DEBUGS(LOG_TXT) << "HTTP GET: " << mID << " Offset: " << mRequestedOffset
+ << " Bytes: " << mRequestedSize
+ << " Bandwidth(kbps): " << mFetcher->getTextureBandwidth() << "/" << mFetcher->mMaxBandwidth
+ << LL_ENDL;
+
+ // Will call callbackHttpGet when curl request completes
+ // Only server bake images use the returned headers currently, for getting retry-after field.
+ LLCore::HttpOptions::ptr_t options = (mFTType == FTT_SERVER_BAKE) ? mFetcher->mHttpOptionsWithHeaders: mFetcher->mHttpOptions;
+ if (disable_range_req)
+ {
+ // 'Range:' requests may be disabled in which case all HTTP
+ // texture fetches result in full fetches. This can be used
+ // by people with questionable ISPs or networking gear that
+ // doesn't handle these well.
+ mHttpHandle = mFetcher->mHttpRequest->requestGet(mHttpPolicyClass,
+ mUrl,
+ options,
+ mFetcher->mHttpHeaders,
+ LLCore::HttpHandler::ptr_t(this, &NoOpDeletor));
+ }
+ else
+ {
+ mHttpHandle = mFetcher->mHttpRequest->requestGetByteRange(mHttpPolicyClass,
+ mUrl,
+ mRequestedOffset,
+ (mRequestedOffset + mRequestedSize) > HTTP_REQUESTS_RANGE_END_MAX
+ ? 0
+ : mRequestedSize,
+ options,
+ mFetcher->mHttpHeaders,
+ LLCore::HttpHandler::ptr_t(this, &NoOpDeletor));
+ }
+ if (LLCORE_HTTP_HANDLE_INVALID == mHttpHandle)
+ {
+ LLCore::HttpStatus status(mFetcher->mHttpRequest->getStatus());
+ LL_WARNS(LOG_TXT) << "HTTP GET request failed for " << mID
+ << ", Status: " << status.toTerseString()
+ << " Reason: '" << status.toString() << "'"
+ << LL_ENDL;
+ resetFormattedData();
+ releaseHttpSemaphore();
+ return true; // failed
+ }
+
+ mHttpActive = true;
+ mFetcher->addToHTTPQueue(mID);
+ recordTextureStart(true);
+ setState(WAIT_HTTP_REQ);
+
+ // fall through
+ }
+
+ if (mState == WAIT_HTTP_REQ)
+ {
+ LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - WAIT_HTTP_REQ");
+ // *NOTE: As stated above, all transitions out of this state should
+ // call releaseHttpSemaphore().
+ if (mLoaded)
+ {
+ S32 cur_size = mFormattedImage.notNull() ? mFormattedImage->getDataSize() : 0;
+ if (mRequestedSize < 0)
+ {
+ if (http_not_found == mGetStatus)
+ {
+ if (mFTType != FTT_MAP_TILE)
+ {
+ LL_WARNS(LOG_TXT) << "Texture missing from server (404): " << mUrl << LL_ENDL;
+ }
+
+ if(mWriteToCacheState == NOT_WRITE) //map tiles or server bakes
+ {
+ setState(DONE);
+ releaseHttpSemaphore();
+ if (mFTType != FTT_MAP_TILE)
+ {
+ LL_WARNS(LOG_TXT) << mID << " abort: WAIT_HTTP_REQ not found" << LL_ENDL;
+ }
+ return true;
+ }
+
+ if (mCanUseHTTP && !mUrl.empty() && cur_size <= 0)
+ {
+ LLViewerRegion* region = getRegion();
+ if (!region || mLastRegionId != region->getRegionID())
+ {
+ // cap failure? try on new region.
+ mUrl.clear();
+ ++mRetryAttempt;
+ mLastRegionId.setNull();
+ setState(INIT);
+ return false;
+ }
+ }
+ }
+ else if (http_service_unavail == mGetStatus)
+ {
+ LL_INFOS_ONCE(LOG_TXT) << "Texture server busy (503): " << mUrl << LL_ENDL;
+ if (mCanUseHTTP && !mUrl.empty() && cur_size <= 0)
+ {
+ LLViewerRegion* region = getRegion();
+ if (!region || mLastRegionId != region->getRegionID())
+ {
+ // try on new region.
+ mUrl.clear();
+ ++mRetryAttempt;
+ mLastRegionId.setNull();
+ setState(INIT);
+ return false;
+ }
+ }
+ }
+ else if (http_not_sat == mGetStatus)
+ {
+ // Allowed, we'll accept whatever data we have as complete.
+ mHaveAllData = true;
+ }
+ else
+ {
+ LL_INFOS(LOG_TXT) << "HTTP GET failed for: " << mUrl
+ << " Status: " << mGetStatus.toTerseString()
+ << " Reason: '" << mGetReason << "'"
+ << LL_ENDL;
+ }
+
+ if (mFTType != FTT_SERVER_BAKE && mFTType != FTT_MAP_TILE)
+ {
+ mUrl.clear();
+ }
+ if (cur_size > 0)
+ {
+ // Use available data
+ mLoadedDiscard = mFormattedImage->getDiscardLevel();
+ if (mLoadedDiscard < 0)
+ {
+ LL_WARNS(LOG_TXT) << mID << " mLoadedDiscard is " << mLoadedDiscard
+ << ", should be >=0" << LL_ENDL;
+ }
+ setState(DECODE_IMAGE);
+ releaseHttpSemaphore();
+ //return false;
+ return doWork(param);
+ }
+
+ // Fail harder
+ resetFormattedData();
+ setState(DONE);
+ releaseHttpSemaphore();
+ LL_WARNS(LOG_TXT) << mID << " abort: fail harder" << LL_ENDL;
+ return true; // failed
+ }
+
+ // Clear the url since we're done with the fetch
+ // Note: mUrl is used to check is fetching is required so failure to clear it will force an http fetch
+ // next time the texture is requested, even if the data have already been fetched.
+ if(mWriteToCacheState != NOT_WRITE && mFTType != FTT_SERVER_BAKE)
+ {
+ // Why do we want to keep url if NOT_WRITE - is this a proxy for map tiles?
+ mUrl.clear();
+ }
+
+ if (! mHttpBufferArray || ! mHttpBufferArray->size())
+ {
+ // no data received.
+ if (mHttpBufferArray)
+ {
+ mHttpBufferArray->release();
+ mHttpBufferArray = NULL;
+ }
+
+ // abort.
+ setState(DONE);
+ LL_WARNS(LOG_TXT) << mID << " abort: no data received" << LL_ENDL;
+ releaseHttpSemaphore();
+ return true;
+ }
+
+ S32 append_size(mHttpBufferArray->size());
+ S32 total_size(cur_size + append_size);
+ S32 src_offset(0);
+ llassert_always(append_size == mRequestedSize);
+ if (mHttpReplyOffset && mHttpReplyOffset != cur_size)
+ {
+ // In case of a partial response, our offset may
+ // not be trivially contiguous with the data we have.
+ // Get back into alignment.
+ if ( (mHttpReplyOffset > cur_size) || (cur_size > mHttpReplyOffset + append_size))
+ {
+ LL_WARNS(LOG_TXT) << "Partial HTTP response produces break in image data for texture "
+ << mID << ". Aborting load." << LL_ENDL;
+ setState(DONE);
+ releaseHttpSemaphore();
+ return true;
+ }
+ src_offset = cur_size - mHttpReplyOffset;
+ append_size -= src_offset;
+ total_size -= src_offset;
+ mRequestedSize -= src_offset; // Make requested values reflect useful part
+ mRequestedOffset += src_offset;
+ }
+
+ U8 * buffer = (U8 *)ll_aligned_malloc_16(total_size);
+ if (!buffer)
+ {
+ // abort. If we have no space for packet, we have not enough space to decode image
+ setState(DONE);
+ LL_WARNS(LOG_TXT) << mID << " abort: out of memory" << LL_ENDL;
+ releaseHttpSemaphore();
+ return true;
+ }
+
+ if (mFormattedImage.isNull())
+ {
+ // For now, create formatted image based on extension
+ std::string extension = gDirUtilp->getExtension(mUrl);
+ mFormattedImage = LLImageFormatted::createFromType(LLImageBase::getCodecFromExtension(extension));
+ if (mFormattedImage.isNull())
+ {
+ mFormattedImage = new LLImageJ2C; // default
+ }
+ }
+
+ LLImageDataLock lock(mFormattedImage);
+
+ if (mHaveAllData) //the image file is fully loaded.
+ {
+ mFileSize = total_size;
+ }
+ else //the file size is unknown.
+ {
+ mFileSize = total_size + 1 ; //flag the file is not fully loaded.
+ }
+
+ if (cur_size > 0)
+ {
+ // Copy previously collected data into buffer
+ memcpy(buffer, mFormattedImage->getData(), cur_size);
+ }
+ mHttpBufferArray->read(src_offset, (char *) buffer + cur_size, append_size);
+
+ // NOTE: setData releases current data and owns new data (buffer)
+ mFormattedImage->setData(buffer, total_size);
+
+ // Done with buffer array
+ mHttpBufferArray->release();
+ mHttpBufferArray = NULL;
+ mHttpReplySize = 0;
+ mHttpReplyOffset = 0;
+
+ mLoadedDiscard = mRequestedDiscard;
+ if (mLoadedDiscard < 0)
+ {
+ LL_WARNS(LOG_TXT) << mID << " mLoadedDiscard is " << mLoadedDiscard
+ << ", should be >=0" << LL_ENDL;
+ }
+ setState(DECODE_IMAGE);
+ if (mWriteToCacheState != NOT_WRITE)
+ {
+ mWriteToCacheState = SHOULD_WRITE ;
+ }
+ releaseHttpSemaphore();
+ //return false;
+ return doWork(param);
+ }
+ else
+ {
+ // *HISTORY: There was a texture timeout test here originally that
+ // would cancel a request that was over 120 seconds old. That's
+ // probably not a good idea. Particularly rich regions can take
+ // an enormous amount of time to load textures. We'll revisit the
+ // various possible timeout components (total request time, connection
+ // time, I/O time, with and without retries, etc.) in the future.
+
+ return false;
+ }
+ }
+
+ if (mState == DECODE_IMAGE)
+ {
+ LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - DECODE_IMAGE");
+ static LLCachedControl<bool> textures_decode_disabled(gSavedSettings, "TextureDecodeDisabled", false);
+
+ if (textures_decode_disabled)
+ {
+ // for debug use, don't decode
+ setState(DONE);
+ return true;
+ }
+
+ if (mDesiredDiscard < 0)
+ {
+ // We aborted, don't decode
+ setState(DONE);
+ LL_DEBUGS(LOG_TXT) << mID << " DECODE_IMAGE abort: desired discard " << mDesiredDiscard << "<0" << LL_ENDL;
+ return true;
+ }
+
+ if (mFormattedImage->getDataSize() <= 0)
+ {
+ LL_WARNS(LOG_TXT) << "Decode entered with invalid mFormattedImage. ID = " << mID << LL_ENDL;
+
+ //abort, don't decode
+ setState(DONE);
+ LL_DEBUGS(LOG_TXT) << mID << " DECODE_IMAGE abort: (mFormattedImage->getDataSize() <= 0)" << LL_ENDL;
+ return true;
+ }
+ if (mLoadedDiscard < 0)
+ {
+ LL_WARNS(LOG_TXT) << "Decode entered with invalid mLoadedDiscard. ID = " << mID << LL_ENDL;
+
+ //abort, don't decode
+ setState(DONE);
+ LL_DEBUGS(LOG_TXT) << mID << " DECODE_IMAGE abort: mLoadedDiscard < 0" << LL_ENDL;
+ return true;
+ }
+ mDecodeTimer.reset();
+ mRawImage = NULL;
+ mAuxImage = NULL;
+ llassert_always(mFormattedImage.notNull());
+ S32 discard = mHaveAllData ? 0 : mLoadedDiscard;
+ mDecoded = false;
+ setState(DECODE_IMAGE_UPDATE);
+ LL_DEBUGS(LOG_TXT) << mID << ": Decoding. Bytes: " << mFormattedImage->getDataSize() << " Discard: " << discard
+ << " All Data: " << mHaveAllData << LL_ENDL;
+
+ // In case worked manages to request decode, be shut down,
+ // then init and request decode again with first decode
+ // still in progress, assign a sufficiently unique id
+ mDecodeHandle = LLAppViewer::getImageDecodeThread()->decodeImage(mFormattedImage,
+ discard,
+ mNeedsAux,
+ new DecodeResponder(mFetcher, mID, this));
+ if (mDecodeHandle == 0)
+ {
+ // Abort, failed to put into queue.
+ // Happens if viewer is shutting down
+ setState(DONE);
+ LL_DEBUGS(LOG_TXT) << mID << " DECODE_IMAGE abort: failed to post for decoding" << LL_ENDL;
+ return true;
+ }
+ // fall though
+ }
+
+ if (mState == DECODE_IMAGE_UPDATE)
+ {
+ LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - DECODE_IMAGE_UPDATE");
+ if (mDecoded)
+ {
+ mDecodeTime = mDecodeTimer.getElapsedTimeF32();
+
+ if (mDecodedDiscard < 0)
+ {
+ if (mCachedSize > 0 && !mInLocalCache && mRetryAttempt == 0)
+ {
+ // Cache file should be deleted, try again
+ LL_DEBUGS(LOG_TXT) << mID << ": Decode of cached file failed (removed), retrying" << LL_ENDL;
+ llassert_always(mDecodeHandle == 0);
+ mFormattedImage = NULL;
+ ++mRetryAttempt;
+ setState(INIT);
+ //return false;
+ return doWork(param);
+ }
+ else
+ {
+ LL_DEBUGS(LOG_TXT) << "Failed to Decode image " << mID << " after " << mRetryAttempt << " retries" << LL_ENDL;
+ setState(DONE); // failed
+ }
+ }
+ else
+ {
+ llassert_always(mRawImage.notNull());
+ LL_DEBUGS(LOG_TXT) << mID << ": Decoded. Discard: " << mDecodedDiscard
+ << " Raw Image: " << llformat("%dx%d",mRawImage->getWidth(),mRawImage->getHeight()) << LL_ENDL;
+ setState(WRITE_TO_CACHE);
+ }
+ // fall through
+ }
+ else
+ {
+ return false;
+ }
+ }
+
+ if (mState == WRITE_TO_CACHE)
+ {
+ LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - WRITE_TO_CACHE");
+ if (mWriteToCacheState != SHOULD_WRITE || mFormattedImage.isNull())
+ {
+ // If we're in a local cache or we didn't actually receive any new data,
+ // or we failed to load anything, skip
+ setState(DONE);
+ //return false;
+ return doWork(param);
+ }
+
+ LLImageDataSharedLock lock(mFormattedImage);
+
+ S32 datasize = mFormattedImage->getDataSize();
+ if(mFileSize < datasize)//This could happen when http fetching and sim fetching mixed.
+ {
+ if(mHaveAllData)
+ {
+ mFileSize = datasize ;
+ }
+ else
+ {
+ mFileSize = datasize + 1 ; //flag not fully loaded.
+ }
+ }
+ llassert_always(datasize);
+ mWritten = false;
+ setState(WAIT_ON_WRITE);
+ ++mCacheWriteCount;
+ CacheWriteResponder* responder = new CacheWriteResponder(mFetcher, mID);
+ // This call might be under work mutex, but mRawImage is not nessesary safe here.
+ // If something retrieves it via getRequestFinished() and modifies, image won't
+ // be protected by work mutex and won't be safe to use here nor in cache worker.
+ // So make sure users of getRequestFinished() does not attempt to modify image while
+ // fetcher is working
+ mCacheWriteTimer.reset();
+ mCacheWriteHandle = mFetcher->mTextureCache->writeToCache(mID,
+ mFormattedImage->getData(), datasize,
+ mFileSize, mRawImage, mDecodedDiscard, responder);
+ // fall through
+ }
+
+ if (mState == WAIT_ON_WRITE)
+ {
+ LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - WAIT_ON_WRITE");
+ if (writeToCacheComplete())
+ {
+ mCacheWriteTime = mCacheWriteTimer.getElapsedTimeF32();
+ setState(DONE);
+ // fall through
+ }
+ else
+ {
+ if (mDesiredDiscard < mDecodedDiscard)
+ {
+ // We're waiting for this write to complete before we can receive more data
+ // (we can't touch mFormattedImage until the write completes)
+ // Prioritize the write
+ mFetcher->mTextureCache->prioritizeWrite(mCacheWriteHandle);
+ }
+ return false;
+ }
+ }
+
+ if (mState == DONE)
+ {
+ LL_PROFILE_ZONE_NAMED_CATEGORY_THREAD("tfwdw - DONE");
+ if (mDecodedDiscard >= 0 && mDesiredDiscard < mDecodedDiscard)
+ {
+ // More data was requested, return to INIT
+ setState(INIT);
+ LL_DEBUGS(LOG_TXT) << mID << " more data requested, returning to INIT: "
+ << " mDecodedDiscard " << mDecodedDiscard << ">= 0 && mDesiredDiscard " << mDesiredDiscard
+ << "<" << " mDecodedDiscard " << mDecodedDiscard << LL_ENDL;
+ // return false;
+ return doWork(param);
+ }
+ else
+ {
+ mFetchTime = mFetchTimer.getElapsedTimeF32();
+ return true;
+ }
+ }
+
+ return false;
+} // -Mw
+
+// Threads: Ttf
+// virtual
+void LLTextureFetchWorker::onCompleted(LLCore::HttpHandle handle, LLCore::HttpResponse * response)
+{
+ LL_PROFILE_ZONE_SCOPED;
+ static LLCachedControl<bool> log_to_viewer_log(gSavedSettings, "LogTextureDownloadsToViewerLog", false);
+ static LLCachedControl<bool> log_to_sim(gSavedSettings, "LogTextureDownloadsToSimulator", false);
+ static LLCachedControl<bool> log_texture_traffic(gSavedSettings, "LogTextureNetworkTraffic", false) ;
+
+ LLMutexLock lock(&mWorkMutex); // +Mw
+
+ mHttpActive = false;
+
+ if (log_to_viewer_log || log_to_sim)
+ {
+ mFetcher->mTextureInfo.setRequestStartTime(mID, mMetricsStartTime.value());
+ mFetcher->mTextureInfo.setRequestType(mID, LLTextureInfoDetails::REQUEST_TYPE_HTTP);
+ mFetcher->mTextureInfo.setRequestSize(mID, mRequestedSize);
+ mFetcher->mTextureInfo.setRequestOffset(mID, mRequestedOffset);
+ mFetcher->mTextureInfo.setRequestCompleteTimeAndLog(mID, LLTimer::getTotalTime());
+ }
+
+ static LLCachedControl<F32> fake_failure_rate(gSavedSettings, "TextureFetchFakeFailureRate", 0.0f);
+ F32 rand_val = ll_frand();
+ F32 rate = fake_failure_rate;
+ if (mFTType == FTT_SERVER_BAKE && (fake_failure_rate > 0.0) && (rand_val < fake_failure_rate))
+ {
+ LL_WARNS(LOG_TXT) << mID << " for debugging, setting fake failure status for texture " << mID
+ << " (rand was " << rand_val << "/" << rate << ")" << LL_ENDL;
+ response->setStatus(LLCore::HttpStatus(503));
+ }
+ bool success = true;
+ bool partial = false;
+ LLCore::HttpStatus status(response->getStatus());
+ if (!status && (mFTType == FTT_SERVER_BAKE))
+ {
+ LL_INFOS(LOG_TXT) << mID << " state " << e_state_name[mState] << LL_ENDL;
+ mFetchRetryPolicy.onFailure(response);
+ F32 retry_after;
+ if (mFetchRetryPolicy.shouldRetry(retry_after))
+ {
+ LL_INFOS(LOG_TXT) << mID << " will retry after " << retry_after << " seconds, resetting state to LOAD_FROM_NETWORK" << LL_ENDL;
+ mFetcher->removeFromHTTPQueue(mID, S32Bytes(0));
+ std::string reason(status.toString());
+ setGetStatus(status, reason);
+ releaseHttpSemaphore();
+ setState(LOAD_FROM_NETWORK);
+ return;
+ }
+ else
+ {
+ LL_INFOS(LOG_TXT) << mID << " will not retry" << LL_ENDL;
+ }
+ }
+ else
+ {
+ mFetchRetryPolicy.onSuccess();
+ }
+
+ std::string reason(status.toString());
+ setGetStatus(status, reason);
+ LL_DEBUGS(LOG_TXT) << "HTTP COMPLETE: " << mID
+ << " status: " << status.toTerseString()
+ << " '" << reason << "'"
+ << LL_ENDL;
+
+ if (! status)
+ {
+ success = false;
+ if (mFTType != FTT_MAP_TILE) // missing map tiles are normal, don't complain about them.
+ {
+ LL_WARNS(LOG_TXT) << "CURL GET FAILED, status: " << status.toTerseString()
+ << " reason: " << reason << LL_ENDL;
+ }
+ }
+ else
+ {
+ // A warning about partial (HTTP 206) data. Some grid services
+ // do *not* return a 'Content-Range' header in the response to
+ // Range requests with a 206 status. We're forced to assume
+ // we get what we asked for in these cases until we can fix
+ // the services.
+ static const LLCore::HttpStatus par_status(HTTP_PARTIAL_CONTENT);
+
+ partial = (par_status == status);
+ }
+
+ S32BytesImplicit data_size = callbackHttpGet(response, partial, success);
+
+ if (log_texture_traffic && data_size > 0)
+ {
+ // one worker per multiple textures
+ std::vector<LLViewerTexture*> textures;
+ LLViewerTextureManager::findTextures(mID, textures);
+ std::vector<LLViewerTexture*>::iterator iter = textures.begin();
+ while (iter != textures.end())
+ {
+ LLViewerTexture* tex = *iter++;
+ if (tex)
+ {
+ gTotalTextureBytesPerBoostLevel[tex->getBoostLevel()] += data_size;
+ }
+ }
+ }
+
+ mFetcher->removeFromHTTPQueue(mID, data_size);
+
+ recordTextureDone(true, data_size);
+} // -Mw
+
+
+// Threads: Tmain
+void LLTextureFetchWorker::endWork(S32 param, bool aborted)
+{
+ LL_PROFILE_ZONE_SCOPED;
+ if (mDecodeHandle != 0)
+ {
+ // LL::ThreadPool has no operation to cancel a particular work item
+ mDecodeHandle = 0;
+ }
+ mFormattedImage = NULL;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+// Threads: Ttf
+
+// virtual
+void LLTextureFetchWorker::finishWork(S32 param, bool completed)
+{
+ LL_PROFILE_ZONE_SCOPED;
+ // The following are required in case the work was aborted
+ if (mCacheReadHandle != LLTextureCache::nullHandle())
+ {
+ mFetcher->mTextureCache->readComplete(mCacheReadHandle, true);
+ mCacheReadHandle = LLTextureCache::nullHandle();
+ }
+ if (mCacheWriteHandle != LLTextureCache::nullHandle())
+ {
+ mFetcher->mTextureCache->writeComplete(mCacheWriteHandle, true);
+ mCacheWriteHandle = LLTextureCache::nullHandle();
+ }
+}
+
+// LLQueuedThread's update() method is asking if it's okay to
+// delete this worker. You'll notice we're not locking in here
+// which is a slight concern. Caller is expected to have made
+// this request 'quiet' by whatever means...
+//
+// Threads: Tmain
+
+// virtual
+bool LLTextureFetchWorker::deleteOK()
+{
+ bool delete_ok = true;
+
+ if (mHttpActive)
+ {
+ // HTTP library has a pointer to this worker
+ // and will dereference it to do notification.
+ delete_ok = false;
+ }
+
+ if (WAIT_HTTP_RESOURCE2 == mState)
+ {
+ if (mFetcher->isHttpWaiter(mID))
+ {
+ // Don't delete the worker out from under the releaseHttpWaiters()
+ // method. Keep the pointers valid, clean up after that method
+ // has recognized the cancelation and removed the UUID from the
+ // waiter list.
+ delete_ok = false;
+ }
+ }
+
+ // Allow any pending reads or writes to complete
+ if (mCacheReadHandle != LLTextureCache::nullHandle())
+ {
+ if (mFetcher->mTextureCache->readComplete(mCacheReadHandle, true))
+ {
+ mCacheReadHandle = LLTextureCache::nullHandle();
+ }
+ else
+ {
+ delete_ok = false;
+ }
+ }
+ if (mCacheWriteHandle != LLTextureCache::nullHandle())
+ {
+ if (mFetcher->mTextureCache->writeComplete(mCacheWriteHandle))
+ {
+ mCacheWriteHandle = LLTextureCache::nullHandle();
+ }
+ else
+ {
+ delete_ok = false;
+ }
+ }
+
+ if ((haveWork() &&
+ // not ok to delete from these states
+ ((mState >= WRITE_TO_CACHE && mState <= WAIT_ON_WRITE))))
+ {
+ delete_ok = false;
+ }
+
+ return delete_ok;
+}
+
+// Threads: Ttf
+void LLTextureFetchWorker::removeFromCache()
+{
+ if (!mInLocalCache)
+ {
+ mFetcher->mTextureCache->removeFromCache(mID);
+ }
+}
+
+
+//////////////////////////////////////////////////////////////////////////////
+
+// Threads: Ttf
+// Locks: Mw
+S32 LLTextureFetchWorker::callbackHttpGet(LLCore::HttpResponse * response,
+ bool partial, bool success)
+{
+ S32 data_size = 0 ;
+
+ if (mState != WAIT_HTTP_REQ)
+ {
+ LL_WARNS(LOG_TXT) << "callbackHttpGet for unrequested fetch worker: " << mID
+ << " req=" << mSentRequest << " state= " << mState << LL_ENDL;
+ return data_size;
+ }
+ if (mLoaded)
+ {
+ LL_WARNS(LOG_TXT) << "Duplicate callback for " << mID.asString() << LL_ENDL;
+ return data_size ; // ignore duplicate callback
+ }
+ if (success)
+ {
+ // get length of stream:
+ LLCore::BufferArray * body(response->getBody());
+ data_size = body ? body->size() : 0;
+
+ LL_DEBUGS(LOG_TXT) << "HTTP RECEIVED: " << mID.asString() << " Bytes: " << data_size << LL_ENDL;
+ if (data_size > 0)
+ {
+ // *TODO: set the formatted image data here directly to avoid the copy
+
+ // Hold on to body for later copy
+ llassert_always(NULL == mHttpBufferArray);
+ body->addRef();
+ mHttpBufferArray = body;
+
+ if (partial)
+ {
+ unsigned int offset(0), length(0), full_length(0);
+ response->getRange(&offset, &length, &full_length);
+ if (! offset && ! length)
+ {
+ // This is the case where we receive a 206 status but
+ // there wasn't a useful Content-Range header in the response.
+ // This could be because it was badly formatted but is more
+ // likely due to capabilities services which scrub headers
+ // from responses. Assume we got what we asked for...
+ mHttpReplySize = data_size;
+ mHttpReplyOffset = mRequestedOffset;
+ }
+ else
+ {
+ mHttpReplySize = length;
+ mHttpReplyOffset = offset;
+ }
+ }
+
+ if (! partial)
+ {
+ // Response indicates this is the entire asset regardless
+ // of our asking for a byte range. Mark it so and drop
+ // any partial data we might have so that the current
+ // response body becomes the entire dataset.
+ if (data_size <= mRequestedOffset)
+ {
+ LL_WARNS(LOG_TXT) << "Fetched entire texture " << mID
+ << " when it was expected to be marked complete. mImageSize: "
+ << mFileSize << " datasize: " << mFormattedImage->getDataSize()
+ << LL_ENDL;
+ }
+ mHaveAllData = true;
+ llassert_always(mDecodeHandle == 0);
+ mFormattedImage = NULL; // discard any previous data we had
+ }
+ else if (data_size < mRequestedSize)
+ {
+ mHaveAllData = true;
+ }
+ else if (data_size > mRequestedSize)
+ {
+ // *TODO: This shouldn't be happening any more (REALLY don't expect this anymore)
+ LL_WARNS(LOG_TXT) << "data_size = " << data_size << " > requested: " << mRequestedSize << LL_ENDL;
+ mHaveAllData = true;
+ llassert_always(mDecodeHandle == 0);
+ mFormattedImage = NULL; // discard any previous data we had
+ }
+ }
+ else
+ {
+ // We requested data but received none (and no error),
+ // so presumably we have all of it
+ mHaveAllData = true;
+ }
+ mRequestedSize = data_size;
+
+ if (mHaveAllData)
+ {
+ LLViewerStatsRecorder::instance().textureFetch();
+ }
+
+ // *TODO: set the formatted image data here directly to avoid the copy
+ }
+ else
+ {
+ mRequestedSize = -1; // error
+ }
+
+ mLoaded = true;
+
+ return data_size ;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+// Threads: Ttc
+void LLTextureFetchWorker::callbackCacheRead(bool success, LLImageFormatted* image,
+ S32 imagesize, bool islocal)
+{
+ LL_PROFILE_ZONE_SCOPED_CATEGORY_TEXTURE;
+ LLMutexLock lock(&mWorkMutex); // +Mw
+ if (mState != LOAD_FROM_TEXTURE_CACHE)
+ {
+// LL_WARNS(LOG_TXT) << "Read callback for " << mID << " with state = " << mState << LL_ENDL;
+ return;
+ }
+ if (success)
+ {
+ llassert_always(imagesize >= 0);
+ mFileSize = imagesize;
+ mFormattedImage = image;
+ mImageCodec = image->getCodec();
+ mInLocalCache = islocal;
+ if (mFileSize != 0 && mFormattedImage->getDataSize() >= mFileSize)
+ {
+ mHaveAllData = true;
+ }
+ }
+ mLoaded = true;
+} // -Mw
+
+// Threads: Ttc
+void LLTextureFetchWorker::callbackCacheWrite(bool success)
+{
+ LLMutexLock lock(&mWorkMutex); // +Mw
+ if (mState != WAIT_ON_WRITE)
+ {
+// LL_WARNS(LOG_TXT) << "Write callback for " << mID << " with state = " << mState << LL_ENDL;
+ return;
+ }
+ mWritten = true;
+} // -Mw
+
+//////////////////////////////////////////////////////////////////////////////
+
+// Threads: Tid
+void LLTextureFetchWorker::callbackDecoded(bool success, const std::string &error_message, LLImageRaw* raw, LLImageRaw* aux, S32 decode_id)
+{
+ LLMutexLock lock(&mWorkMutex); // +Mw
+ if (mDecodeHandle == 0)
+ {
+ return; // aborted, ignore
+ }
+ if (mDecodeHandle != decode_id)
+ {
+ // Queue doesn't support canceling old requests.
+ // This shouldn't normally happen, but in case it's possible that a worked
+ // will request decode, be aborted, reinited then start a new decode
+ LL_DEBUGS(LOG_TXT) << mID << " received obsolete decode's callback" << LL_ENDL;
+ return; // ignore
+ }
+ if (mState != DECODE_IMAGE_UPDATE)
+ {
+ LL_DEBUGS(LOG_TXT) << "Decode callback for " << mID << " with state = " << mState << LL_ENDL;
+ mDecodeHandle = 0;
+ return;
+ }
+ llassert_always(mFormattedImage.notNull());
+
+ mDecodeHandle = 0;
+ if (success)
+ {
+ llassert_always(raw);
+ mRawImage = raw;
+ mAuxImage = aux;
+ mDecodedDiscard = mFormattedImage->getDiscardLevel();
+ LL_DEBUGS(LOG_TXT) << mID << ": Decode Finished. Discard: " << mDecodedDiscard
+ << " Raw Image: " << llformat("%dx%d",mRawImage->getWidth(),mRawImage->getHeight()) << LL_ENDL;
+ }
+ else
+ {
+ LL_WARNS(LOG_TXT) << "DECODE FAILED: " << mID << " Discard: " << (S32)mFormattedImage->getDiscardLevel() << ", reason: " << error_message << LL_ENDL;
+ removeFromCache();
+ mDecodedDiscard = -1; // Redundant, here for clarity and paranoia
+ }
+ mDecoded = true;
+// LL_INFOS(LOG_TXT) << mID << " : DECODE COMPLETE " << LL_ENDL;
+} // -Mw
+
+//////////////////////////////////////////////////////////////////////////////
+
+// Threads: Ttf
+bool LLTextureFetchWorker::writeToCacheComplete()
+{
+ // Complete write to cache
+ if (mCacheWriteHandle != LLTextureCache::nullHandle())
+ {
+ if (!mWritten)
+ {
+ return false;
+ }
+ if (mFetcher->mTextureCache->writeComplete(mCacheWriteHandle))
+ {
+ mCacheWriteHandle = LLTextureCache::nullHandle();
+ }
+ else
+ {
+ return false;
+ }
+ }
+ return true;
+}
+
+
+// Threads: Ttf
+void LLTextureFetchWorker::recordTextureStart(bool is_http)
+{
+ if (! mMetricsStartTime.value())
+ {
+ mMetricsStartTime = LLViewerAssetStatsFF::get_timestamp();
+ }
+ LLViewerAssetStatsFF::record_enqueue(LLViewerAssetType::AT_TEXTURE,
+ is_http,
+ LLImageBase::TYPE_AVATAR_BAKE == mType);
+}
+
+
+// Threads: Ttf
+void LLTextureFetchWorker::recordTextureDone(bool is_http, F64 byte_count)
+{
+ if (mMetricsStartTime.value())
+ {
+ LLViewerAssetStatsFF::record_response(LLViewerAssetType::AT_TEXTURE,
+ is_http,
+ LLImageBase::TYPE_AVATAR_BAKE == mType,
+ LLViewerAssetStatsFF::get_timestamp() - mMetricsStartTime,
+ byte_count);
+ mMetricsStartTime = (U32Seconds)0;
+ }
+ LLViewerAssetStatsFF::record_dequeue(LLViewerAssetType::AT_TEXTURE,
+ is_http,
+ LLImageBase::TYPE_AVATAR_BAKE == mType);
+}
+
+
+//////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////
+// public
+
+std::string LLTextureFetch::getStateString(S32 state)
+{
+ if (state < 0 || state > sizeof(e_state_name) / sizeof(char*))
+ {
+ return llformat("%d", state);
+ }
+
+ return e_state_name[state];
+}
+
+LLTextureFetch::LLTextureFetch(LLTextureCache* cache, bool threaded, bool qa_mode)
+ : LLWorkerThread("TextureFetch", threaded, true),
+ mDebugCount(0),
+ mDebugPause(false),
+ mPacketCount(0),
+ mBadPacketCount(0),
+ mQueueMutex(),
+ mNetworkQueueMutex(),
+ mTextureCache(cache),
+ mTextureBandwidth(0),
+ mHTTPTextureBits(0),
+ mTotalHTTPRequests(0),
+ mQAMode(qa_mode),
+ mHttpRequest(NULL),
+ mHttpOptions(),
+ mHttpOptionsWithHeaders(),
+ mHttpHeaders(),
+ mHttpPolicyClass(LLCore::HttpRequest::DEFAULT_POLICY_ID),
+ mHttpMetricsHeaders(),
+ mHttpMetricsPolicyClass(LLCore::HttpRequest::DEFAULT_POLICY_ID),
+ mTotalCacheReadCount(0U),
+ mTotalCacheWriteCount(0U),
+ mTotalResourceWaitCount(0U),
+ mFetchSource(LLTextureFetch::FROM_ALL),
+ mOriginFetchSource(LLTextureFetch::FROM_ALL),
+ mTextureInfoMainThread(false)
+{
+ mMaxBandwidth = gSavedSettings.getF32("ThrottleBandwidthKBPS");
+ mTextureInfo.setLogging(true);
+
+ LLAppCoreHttp & app_core_http(LLAppViewer::instance()->getAppCoreHttp());
+ mHttpRequest = new LLCore::HttpRequest;
+ mHttpOptions = LLCore::HttpOptions::ptr_t(new LLCore::HttpOptions);
+ mHttpOptionsWithHeaders = LLCore::HttpOptions::ptr_t(new LLCore::HttpOptions);
+ mHttpOptionsWithHeaders->setWantHeaders(true);
+ mHttpHeaders = LLCore::HttpHeaders::ptr_t(new LLCore::HttpHeaders);
+ mHttpHeaders->append(HTTP_OUT_HEADER_ACCEPT, HTTP_CONTENT_IMAGE_X_J2C);
+ mHttpPolicyClass = app_core_http.getPolicy(LLAppCoreHttp::AP_TEXTURE);
+ mHttpMetricsHeaders = LLCore::HttpHeaders::ptr_t(new LLCore::HttpHeaders);
+ mHttpMetricsHeaders->append(HTTP_OUT_HEADER_CONTENT_TYPE, HTTP_CONTENT_LLSD_XML);
+ mHttpMetricsPolicyClass = app_core_http.getPolicy(LLAppCoreHttp::AP_REPORTING);
+ mHttpHighWater = HTTP_NONPIPE_REQUESTS_HIGH_WATER;
+ mHttpLowWater = HTTP_NONPIPE_REQUESTS_LOW_WATER;
+ mHttpSemaphore = 0;
+
+ // If that test log has ben requested but not yet created, create it
+ if (LLMetricPerformanceTesterBasic::isMetricLogRequested(sTesterName) && !LLMetricPerformanceTesterBasic::getTester(sTesterName))
+ {
+ sTesterp = new LLTextureFetchTester() ;
+ if (!sTesterp->isValid())
+ {
+ delete sTesterp;
+ sTesterp = NULL;
+ }
+ }
+}
+
+LLTextureFetch::~LLTextureFetch()
+{
+ clearDeleteList();
+
+ while (! mCommands.empty())
+ {
+ TFRequest * req(mCommands.front());
+ mCommands.erase(mCommands.begin());
+ delete req;
+ }
+
+ mHttpWaitResource.clear();
+
+ delete mHttpRequest;
+ mHttpRequest = NULL;
+
+ // ~LLQueuedThread() called here
+}
+
+S32 LLTextureFetch::createRequest(FTType f_type, const std::string& url, const LLUUID& id, const LLHost& host, F32 priority,
+ S32 w, S32 h, S32 c, S32 desired_discard, bool needs_aux, bool can_use_http)
+{
+ LL_PROFILE_ZONE_SCOPED;
+ if (mDebugPause)
+ {
+ return -1;
+ }
+
+ if (f_type == FTT_SERVER_BAKE)
+ {
+ LL_DEBUGS("Avatar") << " requesting " << id << " " << w << "x" << h << " discard " << desired_discard << " type " << f_type << LL_ENDL;
+ }
+ LLTextureFetchWorker* worker = getWorker(id) ;
+ if (worker)
+ {
+ if (worker->mHost != host)
+ {
+ LL_WARNS(LOG_TXT) << "LLTextureFetch::createRequest " << id << " called with multiple hosts: "
+ << host << " != " << worker->mHost << LL_ENDL;
+ removeRequest(worker, true);
+ worker = NULL;
+ return -1;
+ }
+ }
+
+ S32 desired_size;
+ std::string exten = gDirUtilp->getExtension(url);
+ //if (f_type == FTT_SERVER_BAKE)
+ if ((f_type == FTT_SERVER_BAKE) && !url.empty() && !exten.empty() && (LLImageBase::getCodecFromExtension(exten) != IMG_CODEC_J2C))
+ {
+ // SH-4030: This case should be redundant with the following one, just
+ // breaking it out here to clarify that it's intended behavior.
+ llassert(!url.empty() && (!exten.empty() && LLImageBase::getCodecFromExtension(exten) != IMG_CODEC_J2C));
+
+ // Do full requests for baked textures to reduce interim blurring.
+ LL_DEBUGS(LOG_TXT) << "full request for " << id << " texture is FTT_SERVER_BAKE" << LL_ENDL;
+ desired_size = MAX_IMAGE_DATA_SIZE;
+ desired_discard = 0;
+ }
+ else if (!url.empty() && (!exten.empty() && LLImageBase::getCodecFromExtension(exten) != IMG_CODEC_J2C))
+ {
+ LL_DEBUGS(LOG_TXT) << "full request for " << id << " exten is not J2C: " << exten << LL_ENDL;
+ // Only do partial requests for J2C at the moment
+ desired_size = MAX_IMAGE_DATA_SIZE;
+ desired_discard = 0;
+ }
+ else if (desired_discard == 0)
+ {
+ // if we want the entire image, and we know its size, then get it all
+ // (calcDataSizeJ2C() below makes assumptions about how the image
+ // was compressed - this code ensures that when we request the entire image,
+ // we really do get it.)
+ desired_size = MAX_IMAGE_DATA_SIZE;
+ }
+ else if (w*h*c > 0)
+ {
+ // If the requester knows the dimensions of the image,
+ // this will calculate how much data we need without having to parse the header
+
+ desired_size = LLImageJ2C::calcDataSizeJ2C(w, h, c, desired_discard);
+ }
+ else
+ {
+ // If the requester knows nothing about the file, we fetch the smallest
+ // amount of data at the lowest resolution (highest discard level) possible.
+ desired_size = TEXTURE_CACHE_ENTRY_SIZE;
+ desired_discard = MAX_DISCARD_LEVEL;
+ }
+
+
+ if (worker)
+ {
+ if (worker->wasAborted())
+ {
+ return -1; // need to wait for previous aborted request to complete
+ }
+ worker->lockWorkMutex(); // +Mw
+ if (worker->mState == LLTextureFetchWorker::DONE && worker->mDesiredSize == llmax(desired_size, TEXTURE_CACHE_ENTRY_SIZE) && worker->mDesiredDiscard == desired_discard) {
+ worker->unlockWorkMutex(); // -Mw
+
+ return -1; // similar request has failed or is in a transitional state
+ }
+ worker->mActiveCount++;
+ worker->mNeedsAux = needs_aux;
+ worker->setImagePriority(priority);
+ worker->setDesiredDiscard(desired_discard, desired_size);
+ worker->setCanUseHTTP(can_use_http);
+
+ //MAINT-4184 url is always empty. Do not set with it.
+
+ if (!worker->haveWork())
+ {
+ worker->setState(LLTextureFetchWorker::INIT);
+ worker->unlockWorkMutex(); // -Mw
+
+ worker->addWork(0);
+ }
+ else
+ {
+ worker->unlockWorkMutex(); // -Mw
+ }
+ }
+ else
+ {
+ worker = new LLTextureFetchWorker(this, f_type, url, id, host, priority, desired_discard, desired_size);
+ lockQueue(); // +Mfq
+ mRequestMap[id] = worker;
+ unlockQueue(); // -Mfq
+
+ worker->lockWorkMutex(); // +Mw
+ worker->mActiveCount++;
+ worker->mNeedsAux = needs_aux;
+ worker->setCanUseHTTP(can_use_http) ;
+ worker->unlockWorkMutex(); // -Mw
+ }
+
+ LL_DEBUGS(LOG_TXT) << "REQUESTED: " << id << " f_type " << fttype_to_string(f_type)
+ << " Discard: " << desired_discard << " size " << desired_size << LL_ENDL;
+ return desired_discard;
+}
+// Threads: T*
+//
+// protected
+void LLTextureFetch::addToHTTPQueue(const LLUUID& id)
+{
+ LL_PROFILE_ZONE_SCOPED;
+ LLMutexLock lock(&mNetworkQueueMutex); // +Mfnq
+ mHTTPTextureQueue.insert(id);
+ mTotalHTTPRequests++;
+} // -Mfnq
+
+// Threads: T*
+void LLTextureFetch::removeFromHTTPQueue(const LLUUID& id, S32Bytes received_size)
+{
+ LL_PROFILE_ZONE_SCOPED;
+ LLMutexLock lock(&mNetworkQueueMutex); // +Mfnq
+ mHTTPTextureQueue.erase(id);
+ mHTTPTextureBits += received_size; // Approximate - does not include header bits
+} // -Mfnq
+
+// NB: If you change deleteRequest() you should probably make
+// parallel changes in removeRequest(). They're functionally
+// identical with only argument variations.
+//
+// Threads: T*
+void LLTextureFetch::deleteRequest(const LLUUID& id, bool cancel)
+{
+ LL_PROFILE_ZONE_SCOPED;
+ lockQueue(); // +Mfq
+ LLTextureFetchWorker* worker = getWorkerAfterLock(id);
+ if (worker)
+ {
+ size_t erased_1 = mRequestMap.erase(worker->mID);
+ unlockQueue(); // -Mfq
+
+ llassert_always(erased_1 > 0) ;
+ llassert_always(!(worker->getFlags(LLWorkerClass::WCF_DELETE_REQUESTED))) ;
+
+ worker->scheduleDelete();
+ }
+ else
+ {
+ unlockQueue(); // -Mfq
+ }
+}
+
+// NB: If you change removeRequest() you should probably make
+// parallel changes in deleteRequest(). They're functionally
+// identical with only argument variations.
+//
+// Threads: T*
+void LLTextureFetch::removeRequest(LLTextureFetchWorker* worker, bool cancel)
+{
+ LL_PROFILE_ZONE_SCOPED;
+ if(!worker)
+ {
+ return;
+ }
+
+ lockQueue(); // +Mfq
+ size_t erased_1 = mRequestMap.erase(worker->mID);
+ unlockQueue(); // -Mfq
+
+ llassert_always(erased_1 > 0) ;
+ llassert_always(!(worker->getFlags(LLWorkerClass::WCF_DELETE_REQUESTED))) ;
+
+ worker->scheduleDelete();
+}
+
+void LLTextureFetch::deleteAllRequests()
+{
+ while(1)
+ {
+ lockQueue();
+ if(mRequestMap.empty())
+ {
+ unlockQueue() ;
+ break;
+ }
+
+ LLTextureFetchWorker* worker = mRequestMap.begin()->second;
+ unlockQueue() ;
+
+ removeRequest(worker, true);
+ }
+}
+
+// Threads: T*
+S32 LLTextureFetch::getNumRequests()
+{
+ lockQueue(); // +Mfq
+ S32 size = (S32)mRequestMap.size();
+ unlockQueue(); // -Mfq
+
+ return size;
+}
+
+// Threads: T*
+S32 LLTextureFetch::getNumHTTPRequests()
+{
+ mNetworkQueueMutex.lock(); // +Mfq
+ S32 size = (S32)mHTTPTextureQueue.size();
+ mNetworkQueueMutex.unlock(); // -Mfq
+
+ return size;
+}
+
+// Threads: T*
+U32 LLTextureFetch::getTotalNumHTTPRequests()
+{
+ mNetworkQueueMutex.lock(); // +Mfq
+ U32 size = mTotalHTTPRequests;
+ mNetworkQueueMutex.unlock(); // -Mfq
+
+ return size;
+}
+
+// call lockQueue() first!
+// Threads: T*
+// Locks: Mfq
+LLTextureFetchWorker* LLTextureFetch::getWorkerAfterLock(const LLUUID& id)
+{
+ LL_PROFILE_ZONE_SCOPED;
+ LLTextureFetchWorker* res = NULL;
+ map_t::iterator iter = mRequestMap.find(id);
+ if (iter != mRequestMap.end())
+ {
+ res = iter->second;
+ }
+ return res;
+}
+
+// Threads: T*
+LLTextureFetchWorker* LLTextureFetch::getWorker(const LLUUID& id)
+{
+ LLMutexLock lock(&mQueueMutex); // +Mfq
+
+ return getWorkerAfterLock(id);
+} // -Mfq
+
+
+// Threads: T*
+bool LLTextureFetch::getRequestFinished(const LLUUID& id, S32& discard_level,
+ LLPointer<LLImageRaw>& raw, LLPointer<LLImageRaw>& aux,
+ LLCore::HttpStatus& last_http_get_status)
+{
+ LL_PROFILE_ZONE_SCOPED;
+ bool res = false;
+ LLTextureFetchWorker* worker = getWorker(id);
+ if (worker)
+ {
+ if (worker->wasAborted())
+ {
+ res = true;
+ }
+ else if (!worker->haveWork())
+ {
+ // Should only happen if we set mDebugPause...
+ if (!mDebugPause)
+ {
+// LL_WARNS(LOG_TXT) << "Adding work for inactive worker: " << id << LL_ENDL;
+ worker->addWork(0);
+ }
+ }
+ else if (worker->checkWork())
+ {
+ F32 decode_time;
+ F32 fetch_time;
+ F32 cache_read_time;
+ F32 cache_write_time;
+ S32 file_size;
+ std::map<S32, F32> logged_state_timers;
+ F32 skipped_states_time;
+ worker->lockWorkMutex(); // +Mw
+ last_http_get_status = worker->mGetStatus;
+ discard_level = worker->mDecodedDiscard;
+ raw = worker->mRawImage;
+ aux = worker->mAuxImage;
+
+ decode_time = worker->mDecodeTime;
+ fetch_time = worker->mFetchTime;
+ cache_read_time = worker->mCacheReadTime;
+ cache_write_time = worker->mCacheWriteTime;
+ file_size = worker->mFileSize;
+ worker->mCacheReadTimer.reset();
+ worker->mDecodeTimer.reset();
+ worker->mCacheWriteTimer.reset();
+ worker->mFetchTimer.reset();
+ logged_state_timers = worker->mStateTimersMap;
+ skipped_states_time = worker->mSkippedStatesTime;
+ worker->mStateTimer.reset();
+ res = true;
+ LL_DEBUGS(LOG_TXT) << id << ": Request Finished. State: " << worker->mState << " Discard: " << discard_level << LL_ENDL;
+ worker->unlockWorkMutex(); // -Mw
+
+ sample(sTexDecodeLatency, decode_time);
+ sample(sTexFetchLatency, fetch_time);
+ sample(sCacheReadLatency, cache_read_time);
+ sample(sCacheWriteLatency, cache_write_time);
+
+ static LLCachedControl<F32> min_time_to_log(gSavedSettings, "TextureFetchMinTimeToLog", 2.f);
+ if (fetch_time > min_time_to_log)
+ {
+ //LL_INFOS() << "fetch_time: " << fetch_time << " cache_read_time: " << cache_read_time << " decode_time: " << decode_time << " cache_write_time: " << cache_write_time << LL_ENDL;
+
+ LLTextureFetchTester* tester = (LLTextureFetchTester*)LLMetricPerformanceTesterBasic::getTester(sTesterName);
+ if (tester)
+ {
+ tester->updateStats(logged_state_timers, fetch_time, skipped_states_time, file_size) ;
+ }
+ }
+ }
+ else
+ {
+ worker->lockWorkMutex(); // +Mw
+ if ((worker->mDecodedDiscard >= 0) &&
+ (worker->mDecodedDiscard < discard_level || discard_level < 0) &&
+ (worker->mState >= LLTextureFetchWorker::WAIT_ON_WRITE))
+ {
+ // Not finished, but data is ready
+ discard_level = worker->mDecodedDiscard;
+ raw = worker->mRawImage;
+ aux = worker->mAuxImage;
+ }
+ worker->unlockWorkMutex(); // -Mw
+ }
+ }
+ else
+ {
+ res = true;
+ }
+ return res;
+}
+
+// Threads: T*
+bool LLTextureFetch::updateRequestPriority(const LLUUID& id, F32 priority)
+{
+ LL_PROFILE_ZONE_SCOPED;
+ mRequestQueue.tryPost([=]()
+ {
+ LLTextureFetchWorker* worker = getWorker(id);
+ if (worker)
+ {
+ worker->lockWorkMutex(); // +Mw
+ worker->setImagePriority(priority);
+ worker->unlockWorkMutex(); // -Mw
+ }
+ });
+
+ return true;
+}
+
+// Replicates and expands upon the base class's
+// getPending() implementation. getPending() and
+// runCondition() replicate one another's logic to
+// an extent and are sometimes used for the same
+// function (deciding whether or not to sleep/pause
+// a thread). So the implementations need to stay
+// in step, at least until this can be refactored and
+// the redundancy eliminated.
+//
+// Threads: T*
+
+//virtual
+size_t LLTextureFetch::getPending()
+{
+ LL_PROFILE_ZONE_SCOPED;
+ size_t res;
+ lockData(); // +Ct
+ {
+ LLMutexLock lock(&mQueueMutex); // +Mfq
+
+ res = mRequestQueue.size();
+ res += mCommands.size();
+ } // -Mfq
+ unlockData(); // -Ct
+ return res;
+}
+
+// Locks: Ct
+// virtual
+bool LLTextureFetch::runCondition()
+{
+ // Caller is holding the lock on LLThread's condition variable.
+
+ // LLQueuedThread, unlike its base class LLThread, makes this a
+ // private method which is unfortunate. I want to use it directly
+ // but I'm going to have to re-implement the logic here (or change
+ // declarations, which I don't want to do right now).
+ //
+ // Changes here may need to be reflected in getPending().
+
+ bool have_no_commands(false);
+ {
+ LLMutexLock lock(&mQueueMutex); // +Mfq
+
+ have_no_commands = mCommands.empty();
+ } // -Mfq
+
+ return ! (have_no_commands
+ && (mRequestQueue.size() == 0 && mIdleThread)); // From base class
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+// Threads: Ttf
+void LLTextureFetch::commonUpdate()
+{
+ LL_PROFILE_ZONE_SCOPED;
+ // Update low/high water levels based on pipelining. We pick
+ // up setting eventually, so the semaphore/request level can
+ // fall outside the [0..HIGH_WATER] range. Expect that.
+ if (LLAppViewer::instance()->getAppCoreHttp().isPipelined(LLAppCoreHttp::AP_TEXTURE))
+ {
+ mHttpHighWater = HTTP_PIPE_REQUESTS_HIGH_WATER;
+ mHttpLowWater = HTTP_PIPE_REQUESTS_LOW_WATER;
+ }
+ else
+ {
+ mHttpHighWater = HTTP_NONPIPE_REQUESTS_HIGH_WATER;
+ mHttpLowWater = HTTP_NONPIPE_REQUESTS_LOW_WATER;
+ }
+
+ // Release waiters
+ releaseHttpWaiters();
+
+ // Run a cross-thread command, if any.
+ cmdDoWork();
+
+ // Deliver all completion notifications
+ LLCore::HttpStatus status = mHttpRequest->update(0);
+ if (! status)
+ {
+ LL_INFOS_ONCE(LOG_TXT) << "Problem during HTTP servicing. Reason: "
+ << status.toString()
+ << LL_ENDL;
+ }
+}
+
+
+// Threads: Tmain
+
+//virtual
+size_t LLTextureFetch::update(F32 max_time_ms)
+{
+ LL_PROFILE_ZONE_SCOPED;
+ static LLCachedControl<F32> band_width(gSavedSettings,"ThrottleBandwidthKBPS", 3000.0);
+
+ {
+ mNetworkQueueMutex.lock(); // +Mfnq
+ mMaxBandwidth = band_width();
+
+ add(LLStatViewer::TEXTURE_NETWORK_DATA_RECEIVED, mHTTPTextureBits);
+ mHTTPTextureBits = (U32Bits)0;
+
+ mNetworkQueueMutex.unlock(); // -Mfnq
+ }
+
+ size_t res = LLWorkerThread::update(max_time_ms);
+
+ if (!mThreaded)
+ {
+ commonUpdate();
+ }
+
+ return res;
+}
+
+// called in the MAIN thread after the TextureCacheThread shuts down.
+//
+// Threads: Tmain
+void LLTextureFetch::shutDownTextureCacheThread()
+{
+ if(mTextureCache)
+ {
+ llassert_always(mTextureCache->isQuitting() || mTextureCache->isStopped()) ;
+ mTextureCache = NULL ;
+ }
+}
+
+// Threads: Ttf
+void LLTextureFetch::startThread()
+{
+ mTextureInfo.startRecording();
+}
+
+// Threads: Ttf
+void LLTextureFetch::endThread()
+{
+ LL_INFOS(LOG_TXT) << "CacheReads: " << mTotalCacheReadCount
+ << ", CacheWrites: " << mTotalCacheWriteCount
+ << ", ResWaits: " << mTotalResourceWaitCount
+ << ", TotalHTTPReq: " << getTotalNumHTTPRequests()
+ << LL_ENDL;
+
+ mTextureInfo.stopRecording();
+}
+
+// Threads: Ttf
+void LLTextureFetch::threadedUpdate()
+{
+ LL_PROFILE_ZONE_SCOPED;
+ llassert_always(mHttpRequest);
+
+#if 0
+ // Limit update frequency
+ const F32 PROCESS_TIME = 0.05f;
+ static LLFrameTimer process_timer;
+ if (process_timer.getElapsedTimeF32() < PROCESS_TIME)
+ {
+ return;
+ }
+ process_timer.reset();
+#endif
+
+ commonUpdate();
+
+#if 0
+ const F32 INFO_TIME = 1.0f;
+ static LLFrameTimer info_timer;
+ if (info_timer.getElapsedTimeF32() >= INFO_TIME)
+ {
+ S32 q = mCurlGetRequest->getQueued();
+ if (q > 0)
+ {
+ LL_INFOS(LOG_TXT) << "Queued gets: " << q << LL_ENDL;
+ info_timer.reset();
+ }
+ }
+#endif
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+// Threads: T*
+// Locks: Mw
+bool LLTextureFetchWorker::insertPacket(S32 index, U8* data, S32 size)
+{
+ LL_PROFILE_ZONE_SCOPED;
+ mRequestedDeltaTimer.reset();
+ if (index >= mTotalPackets)
+ {
+// LL_WARNS(LOG_TXT) << "Received Image Packet " << index << " > max: " << mTotalPackets << " for image: " << mID << LL_ENDL;
+ return false;
+ }
+ if (index > 0 && index < mTotalPackets-1 && size != MAX_IMG_PACKET_SIZE)
+ {
+// LL_WARNS(LOG_TXT) << "Received bad sized packet: " << index << ", " << size << " != " << MAX_IMG_PACKET_SIZE << " for image: " << mID << LL_ENDL;
+ return false;
+ }
+
+ if (index >= (S32)mPackets.size())
+ {
+ mPackets.resize(index+1, (PacketData*)NULL); // initializes v to NULL pointers
+ }
+ else if (mPackets[index] != NULL)
+ {
+// LL_WARNS(LOG_TXT) << "Received duplicate packet: " << index << " for image: " << mID << LL_ENDL;
+ return false;
+ }
+
+ mPackets[index] = new PacketData(data, size);
+ while (mLastPacket+1 < (S32)mPackets.size() && mPackets[mLastPacket+1] != NULL)
+ {
+ ++mLastPacket;
+ }
+ return true;
+}
+
+void LLTextureFetchWorker::setState(e_state new_state)
+{
+ LL_PROFILE_ZONE_SCOPED_CATEGORY_TEXTURE;
+ if (mFTType == FTT_SERVER_BAKE)
+ {
+ // NOTE: turning on these log statements is a reliable way to get
+ // blurry images fairly frequently. Presumably this is an
+ // indication of some subtle timing or locking issue.
+
+// LL_INFOS(LOG_TXT) << "id: " << mID << " FTType: " << mFTType << " disc: " << mDesiredDiscard << " sz: " << mDesiredSize << " state: " << e_state_name[mState] << " => " << e_state_name[new_state] << LL_ENDL;
+ }
+
+ F32 d_time = mStateTimer.getElapsedTimeF32();
+ if (d_time >= 0.0001F)
+ {
+ if (LOGGED_STATES.count(mState))
+ {
+ mStateTimersMap[mState] = d_time;
+ }
+ else
+ {
+ mSkippedStatesTime += d_time;
+ }
+ }
+
+ mStateTimer.reset();
+ mState = new_state;
+}
+
+LLViewerRegion* LLTextureFetchWorker::getRegion()
+{
+ LLViewerRegion* region = NULL;
+ if (mHost.isInvalid())
+ {
+ region = gAgent.getRegion();
+ }
+ else if (LLWorld::instanceExists())
+ {
+ region = LLWorld::getInstance()->getRegion(mHost);
+ }
+ return region;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+// Threads: T*
+bool LLTextureFetch::isFromLocalCache(const LLUUID& id)
+{
+ bool from_cache = false ;
+
+ LLTextureFetchWorker* worker = getWorker(id);
+ if (worker)
+ {
+ worker->lockWorkMutex(); // +Mw
+ from_cache = worker->mInLocalCache;
+ worker->unlockWorkMutex(); // -Mw
+ }
+
+ return from_cache ;
+}
+
+S32 LLTextureFetch::getFetchState(const LLUUID& id)
+{
+ S32 state = LLTextureFetchWorker::INVALID;
+ LLTextureFetchWorker* worker = getWorker(id);
+ if (worker && worker->haveWork())
+ {
+ state = worker->mState;
+ }
+
+ return state;
+}
+
+// Threads: T*
+S32 LLTextureFetch::getFetchState(const LLUUID& id, F32& data_progress_p, F32& requested_priority_p,
+ U32& fetch_priority_p, F32& fetch_dtime_p, F32& request_dtime_p, bool& can_use_http)
+{
+ LL_PROFILE_ZONE_SCOPED;
+ S32 state = LLTextureFetchWorker::INVALID;
+ F32 data_progress = 0.0f;
+ F32 requested_priority = 0.0f;
+ F32 fetch_dtime = 999999.f;
+ F32 request_dtime = 999999.f;
+ U32 fetch_priority = 0;
+
+ LLTextureFetchWorker* worker = getWorker(id);
+ if (worker && worker->haveWork())
+ {
+ worker->lockWorkMutex(); // +Mw
+ state = worker->mState;
+ fetch_dtime = worker->mFetchDeltaTimer.getElapsedTimeF32();
+ request_dtime = worker->mRequestedDeltaTimer.getElapsedTimeF32();
+ if (worker->mFileSize > 0)
+ {
+ if (worker->mFormattedImage.notNull())
+ {
+ data_progress = (F32)worker->mFormattedImage->getDataSize() / (F32)worker->mFileSize;
+ }
+ }
+ if (state >= LLTextureFetchWorker::LOAD_FROM_NETWORK && state <= LLTextureFetchWorker::WAIT_HTTP_REQ)
+ {
+ requested_priority = worker->mRequestedPriority;
+ }
+ else
+ {
+ requested_priority = worker->mImagePriority;
+ }
+ fetch_priority = worker->getImagePriority();
+ can_use_http = worker->getCanUseHTTP() ;
+ worker->unlockWorkMutex(); // -Mw
+ }
+ data_progress_p = data_progress;
+ requested_priority_p = requested_priority;
+ fetch_priority_p = fetch_priority;
+ fetch_dtime_p = fetch_dtime;
+ request_dtime_p = request_dtime;
+ return state;
+}
+
+void LLTextureFetch::dump()
+{
+ LL_INFOS(LOG_TXT) << "LLTextureFetch ACTIVE_HTTP:" << LL_ENDL;
+ for (queue_t::const_iterator iter(mHTTPTextureQueue.begin());
+ mHTTPTextureQueue.end() != iter;
+ ++iter)
+ {
+ LL_INFOS(LOG_TXT) << " ID: " << (*iter) << LL_ENDL;
+ }
+
+ LL_INFOS(LOG_TXT) << "LLTextureFetch WAIT_HTTP_RESOURCE:" << LL_ENDL;
+ for (wait_http_res_queue_t::const_iterator iter(mHttpWaitResource.begin());
+ mHttpWaitResource.end() != iter;
+ ++iter)
+ {
+ LL_INFOS(LOG_TXT) << " ID: " << (*iter) << LL_ENDL;
+ }
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+// HTTP Resource Waiting Methods
+
+// Threads: Ttf
+void LLTextureFetch::addHttpWaiter(const LLUUID & tid)
+{
+ mNetworkQueueMutex.lock(); // +Mfnq
+ mHttpWaitResource.insert(tid);
+ mNetworkQueueMutex.unlock(); // -Mfnq
+}
+
+// Threads: Ttf
+void LLTextureFetch::removeHttpWaiter(const LLUUID & tid)
+{
+ mNetworkQueueMutex.lock(); // +Mfnq
+ wait_http_res_queue_t::iterator iter(mHttpWaitResource.find(tid));
+ if (mHttpWaitResource.end() != iter)
+ {
+ mHttpWaitResource.erase(iter);
+ }
+ mNetworkQueueMutex.unlock(); // -Mfnq
+}
+
+// Threads: T*
+bool LLTextureFetch::isHttpWaiter(const LLUUID & tid)
+{
+ mNetworkQueueMutex.lock(); // +Mfnq
+ wait_http_res_queue_t::iterator iter(mHttpWaitResource.find(tid));
+ const bool ret(mHttpWaitResource.end() != iter);
+ mNetworkQueueMutex.unlock(); // -Mfnq
+ return ret;
+}
+
+// Release as many requests as permitted from the WAIT_HTTP_RESOURCE2
+// state to the SEND_HTTP_REQ state based on their current priority.
+//
+// This data structures and code associated with this looks a bit
+// indirect and naive but it's done in the name of safety. An
+// ordered container may become invalid from time to time due to
+// priority changes caused by actions in other threads. State itself
+// could also suffer the same fate with canceled operations. Even
+// done this way, I'm not fully trusting we're truly safe. This
+// module is due for a major refactoring and we'll deal with it then.
+//
+// Threads: Ttf
+// Locks: -Mw (must not hold any worker when called)
+void LLTextureFetch::releaseHttpWaiters()
+{
+ LL_PROFILE_ZONE_SCOPED;
+ // Use mHttpSemaphore rather than mHTTPTextureQueue.size()
+ // to avoid a lock.
+ if (mHttpSemaphore >= mHttpLowWater)
+ return;
+ S32 needed(mHttpHighWater - mHttpSemaphore);
+ if (needed <= 0)
+ {
+ // Would only happen if High/LowWater were changed behind
+ // our back. In that case, defer fill until usage falls within
+ // limits.
+ return;
+ }
+
+ // Quickly make a copy of all the LLUIDs. Get off the
+ // mutex as early as possible.
+ typedef std::vector<LLUUID> uuid_vec_t;
+ uuid_vec_t tids;
+
+ {
+ LLMutexLock lock(&mNetworkQueueMutex); // +Mfnq
+
+ if (mHttpWaitResource.empty())
+ return;
+ tids.reserve(mHttpWaitResource.size());
+ tids.assign(mHttpWaitResource.begin(), mHttpWaitResource.end());
+ } // -Mfnq
+
+ // Now lookup the UUUIDs to find valid requests and sort
+ // them in priority order, highest to lowest. We're going
+ // to modify priority later as a side-effect of releasing
+ // these objects. That, in turn, would violate the partial
+ // ordering assumption of std::set, std::map, etc. so we
+ // don't use those containers. We use a vector and an explicit
+ // sort to keep the containers valid later.
+ typedef std::vector<LLTextureFetchWorker *> worker_list_t;
+ worker_list_t tids2;
+
+ tids2.reserve(tids.size());
+ for (uuid_vec_t::iterator iter(tids.begin());
+ tids.end() != iter;
+ ++iter)
+ {
+ LLTextureFetchWorker * worker(getWorker(* iter));
+ if (worker)
+ {
+ tids2.push_back(worker);
+ }
+ else
+ {
+ // If worker isn't found, this should be due to a request
+ // for deletion. We signal our recognition that this
+ // uuid shouldn't be used for resource waiting anymore by
+ // erasing it from the resource waiter list. That allows
+ // deleteOK to do final deletion on the worker.
+ removeHttpWaiter(* iter);
+ }
+ }
+ tids.clear();
+
+ // Sort into priority order, if necessary and only as much as needed
+ if (tids2.size() > needed)
+ {
+ LLTextureFetchWorker::Compare compare;
+ std::partial_sort(tids2.begin(), tids2.begin() + needed, tids2.end(), compare);
+ }
+
+ // Release workers up to the high water mark. Since we aren't
+ // holding any locks at this point, we can be in competition
+ // with other callers. Do defensive things like getting
+ // refreshed counts of requests and checking if someone else
+ // has moved any worker state around....
+ for (worker_list_t::iterator iter2(tids2.begin()); tids2.end() != iter2; ++iter2)
+ {
+ LLTextureFetchWorker * worker(* iter2);
+
+ worker->lockWorkMutex(); // +Mw
+ if (LLTextureFetchWorker::WAIT_HTTP_RESOURCE2 != worker->mState)
+ {
+ // Not in expected state, remove it, try the next one
+ worker->unlockWorkMutex(); // -Mw
+ LL_WARNS(LOG_TXT) << "Resource-waited texture " << worker->mID
+ << " in unexpected state: " << worker->mState
+ << ". Removing from wait list."
+ << LL_ENDL;
+ removeHttpWaiter(worker->mID);
+ continue;
+ }
+
+ if (! worker->acquireHttpSemaphore())
+ {
+ // Out of active slots, quit
+ worker->unlockWorkMutex(); // -Mw
+ break;
+ }
+
+ worker->setState(LLTextureFetchWorker::SEND_HTTP_REQ);
+ worker->unlockWorkMutex(); // -Mw
+
+ removeHttpWaiter(worker->mID);
+ }
+}
+
+// Threads: T*
+void LLTextureFetch::cancelHttpWaiters()
+{
+ mNetworkQueueMutex.lock(); // +Mfnq
+ mHttpWaitResource.clear();
+ mNetworkQueueMutex.unlock(); // -Mfnq
+}
+
+// Threads: T*
+int LLTextureFetch::getHttpWaitersCount()
+{
+ mNetworkQueueMutex.lock(); // +Mfnq
+ int ret(mHttpWaitResource.size());
+ mNetworkQueueMutex.unlock(); // -Mfnq
+ return ret;
+}
+
+
+// Threads: T*
+void LLTextureFetch::updateStateStats(U32 cache_read, U32 cache_write, U32 res_wait)
+{
+ LLMutexLock lock(&mQueueMutex); // +Mfq
+
+ mTotalCacheReadCount += cache_read;
+ mTotalCacheWriteCount += cache_write;
+ mTotalResourceWaitCount += res_wait;
+} // -Mfq
+
+
+// Threads: T*
+void LLTextureFetch::getStateStats(U32 * cache_read, U32 * cache_write, U32 * res_wait)
+{
+ U32 ret1(0U), ret2(0U), ret3(0U);
+
+ {
+ LLMutexLock lock(&mQueueMutex); // +Mfq
+ ret1 = mTotalCacheReadCount;
+ ret2 = mTotalCacheWriteCount;
+ ret3 = mTotalResourceWaitCount;
+ } // -Mfq
+
+ *cache_read = ret1;
+ *cache_write = ret2;
+ *res_wait = ret3;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+// cross-thread command methods
+
+// Threads: T*
+void LLTextureFetch::commandSetRegion(U64 region_handle)
+{
+ TFReqSetRegion * req = new TFReqSetRegion(region_handle);
+
+ cmdEnqueue(req);
+}
+
+// Threads: T*
+void LLTextureFetch::commandSendMetrics(const std::string & caps_url,
+ const LLUUID & session_id,
+ const LLUUID & agent_id,
+ LLSD& stats_sd)
+{
+ TFReqSendMetrics * req = new TFReqSendMetrics(caps_url, session_id, agent_id, stats_sd);
+
+ cmdEnqueue(req);
+}
+
+// Threads: T*
+void LLTextureFetch::commandDataBreak()
+{
+ // The pedantically correct way to implement this is to create a command
+ // request object in the above fashion and enqueue it. However, this is
+ // simple data of an advisorial not operational nature and this case
+ // of shared-write access is tolerable.
+
+ LLTextureFetch::svMetricsDataBreak = true;
+}
+
+// Threads: T*
+void LLTextureFetch::cmdEnqueue(TFRequest * req)
+{
+ LL_PROFILE_ZONE_SCOPED;
+ lockQueue(); // +Mfq
+ mCommands.push_back(req);
+ unlockQueue(); // -Mfq
+
+ unpause();
+}
+
+// Threads: T*
+LLTextureFetch::TFRequest * LLTextureFetch::cmdDequeue()
+{
+ LL_PROFILE_ZONE_SCOPED;
+ TFRequest * ret = 0;
+
+ lockQueue(); // +Mfq
+ if (! mCommands.empty())
+ {
+ ret = mCommands.front();
+ mCommands.erase(mCommands.begin());
+ }
+ unlockQueue(); // -Mfq
+
+ return ret;
+}
+
+// Threads: Ttf
+void LLTextureFetch::cmdDoWork()
+{
+ LL_PROFILE_ZONE_SCOPED;
+ if (mDebugPause)
+ {
+ return; // debug: don't do any work
+ }
+
+ TFRequest * req = cmdDequeue();
+ if (req)
+ {
+ // One request per pass should really be enough for this.
+ req->doWork(this);
+ delete req;
+ }
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+// Private (anonymous) class methods implementing the command scheme.
+
+namespace
+{
+
+
+// Example of a simple notification handler for metrics
+// delivery notification. Earlier versions of the code used
+// a Responder that tried harder to detect delivery breaks
+// but it really isn't that important. If someone wants to
+// revisit that effort, here is a place to start.
+class AssetReportHandler : public LLCore::HttpHandler
+{
+public:
+
+ // Threads: Ttf
+ virtual void onCompleted(LLCore::HttpHandle handle, LLCore::HttpResponse * response)
+ {
+ LLCore::HttpStatus status(response->getStatus());
+
+ if (status)
+ {
+ LL_DEBUGS(LOG_TXT) << "Successfully delivered asset metrics to grid."
+ << LL_ENDL;
+ }
+ else
+ {
+ LL_WARNS(LOG_TXT) << "Error delivering asset metrics to grid. Status: "
+ << status.toTerseString()
+ << ", Reason: " << status.toString() << LL_ENDL;
+ }
+ }
+}; // end class AssetReportHandler
+
+/**
+ * Implements the 'Set Region' command.
+ *
+ * Thread: Thread1 (TextureFetch)
+ */
+bool
+TFReqSetRegion::doWork(LLTextureFetch *)
+{
+ LLViewerAssetStatsFF::set_region(mRegionHandle);
+
+ return true;
+}
+
+TFReqSendMetrics::TFReqSendMetrics(const std::string & caps_url,
+ const LLUUID & session_id,
+ const LLUUID & agent_id,
+ LLSD& stats_sd):
+ LLTextureFetch::TFRequest(),
+ mCapsURL(caps_url),
+ mSessionID(session_id),
+ mAgentID(agent_id),
+ mStatsSD(stats_sd),
+ mHandler(new AssetReportHandler)
+{}
+
+
+TFReqSendMetrics::~TFReqSendMetrics()
+{
+}
+
+
+/**
+ * Implements the 'Send Metrics' command. Takes over
+ * ownership of the passed LLViewerAssetStats pointer.
+ *
+ * Thread: Thread1 (TextureFetch)
+ */
+bool
+TFReqSendMetrics::doWork(LLTextureFetch * fetcher)
+{
+ LL_PROFILE_ZONE_SCOPED;
+
+ //if (! gViewerAssetStatsThread1)
+ // return true;
+
+ static volatile bool reporting_started(false);
+ static volatile S32 report_sequence(0);
+
+ // In mStatsSD, we have a copy we own of the LLSD representation
+ // of the asset stats. Add some additional fields and ship it off.
+
+ static const S32 metrics_data_version = 2;
+
+ bool initial_report = !reporting_started;
+ mStatsSD["session_id"] = mSessionID;
+ mStatsSD["agent_id"] = mAgentID;
+ mStatsSD["message"] = "ViewerAssetMetrics";
+ mStatsSD["sequence"] = report_sequence;
+ mStatsSD["initial"] = initial_report;
+ mStatsSD["version"] = metrics_data_version;
+ mStatsSD["break"] = static_cast<bool>(LLTextureFetch::svMetricsDataBreak);
+
+ // Update sequence number
+ if (S32_MAX == ++report_sequence)
+ {
+ report_sequence = 0;
+ }
+ reporting_started = true;
+
+ // Limit the size of the stats report if necessary.
+
+ mStatsSD["truncated"] = truncate_viewer_metrics(10, mStatsSD);
+
+ if (gSavedSettings.getBOOL("QAModeMetrics"))
+ {
+ dump_sequential_xml("metric_asset_stats",mStatsSD);
+ }
+
+ if (! mCapsURL.empty())
+ {
+ // Don't care about handle, this is a fire-and-forget operation.
+ LLCoreHttpUtil::requestPostWithLLSD(&fetcher->getHttpRequest(),
+ fetcher->getMetricsPolicyClass(),
+ mCapsURL,
+ mStatsSD,
+ LLCore::HttpOptions::ptr_t(),
+ fetcher->getMetricsHeaders(),
+ mHandler);
+ LLTextureFetch::svMetricsDataBreak = false;
+ }
+ else
+ {
+ LLTextureFetch::svMetricsDataBreak = true;
+ }
+
+ // In QA mode, Metrics submode, log the result for ease of testing
+ if (fetcher->isQAMode())
+ {
+ LL_INFOS(LOG_TXT) << "ViewerAssetMetrics as submitted\n" << ll_pretty_print_sd(mStatsSD) << LL_ENDL;
+ }
+
+ return true;
+}
+
+
+bool
+truncate_viewer_metrics(int max_regions, LLSD & metrics)
+{
+ static const LLSD::String reg_tag("regions");
+ static const LLSD::String duration_tag("duration");
+
+ LLSD & reg_map(metrics[reg_tag]);
+ if (reg_map.size() <= max_regions)
+ {
+ return false;
+ }
+
+ // Build map of region hashes ordered by duration
+ typedef std::multimap<LLSD::Real, int> reg_ordered_list_t;
+ reg_ordered_list_t regions_by_duration;
+
+ int ind(0);
+ LLSD::array_const_iterator it_end(reg_map.endArray());
+ for (LLSD::array_const_iterator it(reg_map.beginArray()); it_end != it; ++it, ++ind)
+ {
+ LLSD::Real duration = (*it)[duration_tag].asReal();
+ regions_by_duration.insert(reg_ordered_list_t::value_type(duration, ind));
+ }
+
+ // Build a replacement regions array with the longest-persistence regions
+ LLSD new_region(LLSD::emptyArray());
+ reg_ordered_list_t::const_reverse_iterator it2_end(regions_by_duration.rend());
+ reg_ordered_list_t::const_reverse_iterator it2(regions_by_duration.rbegin());
+ for (int i(0); i < max_regions && it2_end != it2; ++i, ++it2)
+ {
+ new_region.append(reg_map[it2->second]);
+ }
+ reg_map = new_region;
+
+ return true;
+}
+
+} // end of anonymous namespace
+
+LLTextureFetchTester::LLTextureFetchTester() : LLMetricPerformanceTesterBasic(sTesterName)
+{
+ mTextureFetchTime = 0;
+ mSkippedStatesTime = 0;
+ mFileSize = 0;
+}
+
+LLTextureFetchTester::~LLTextureFetchTester()
+{
+ outputTestResults();
+ LLTextureFetch::sTesterp = NULL;
+}
+
+//virtual
+void LLTextureFetchTester::outputTestRecord(LLSD *sd)
+{
+ std::string currentLabel = getCurrentLabelName();
+
+ (*sd)[currentLabel]["Texture Fetch Time"] = (LLSD::Real)mTextureFetchTime;
+ (*sd)[currentLabel]["File Size"] = (LLSD::Integer)mFileSize;
+ (*sd)[currentLabel]["Skipped States Time"] = (LLSD::String)llformat("%.6f", mSkippedStatesTime);
+
+ for(auto i : LOGGED_STATES)
+ {
+ (*sd)[currentLabel][sStateDescs[i]] = mStateTimersMap[i];
+ }
+}
+
+void LLTextureFetchTester::updateStats(const std::map<S32, F32> state_timers, const F32 fetch_time, const F32 skipped_states_time, const S32 file_size)
+{
+ mTextureFetchTime = fetch_time;
+ mStateTimersMap = state_timers;
+ mFileSize = file_size;
+ mSkippedStatesTime = skipped_states_time;
+ outputTestResults();
+}
+
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-15 03:27:51 +0000