From e2e37cced861b98de8c1a7c9c0d3a50d2d90e433 Mon Sep 17 00:00:00 2001
From: Ansariel <ansariel.hiller@phoenixviewer.com>
Date: Wed, 22 May 2024 21:25:21 +0200
Subject: Fix line endlings

---
 indra/newview/lltexturefetch.h | 862 ++++++++++++++++++++---------------------
 1 file changed, 431 insertions(+), 431 deletions(-)

(limited to 'indra/newview/lltexturefetch.h')

diff --git a/indra/newview/lltexturefetch.h b/indra/newview/lltexturefetch.h
index 9d653173b5..aebd2f8f95 100644
--- a/indra/newview/lltexturefetch.h
+++ b/indra/newview/lltexturefetch.h
@@ -1,431 +1,431 @@
-/**
- * @file lltexturefetch.h
- * @brief Object for managing texture fetches.
- *
- * $LicenseInfo:firstyear=2000&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2012-2013, 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
- * $/LicenseInfo$
- */
-
-#ifndef LL_LLTEXTUREFETCH_H
-#define LL_LLTEXTUREFETCH_H
-
-#include <vector>
-#include <map>
-
-#include "lldir.h"
-#include "llimage.h"
-#include "lluuid.h"
-#include "llworkerthread.h"
-#include "lltextureinfo.h"
-#include "llimageworker.h"
-#include "httprequest.h"
-#include "httpoptions.h"
-#include "httpheaders.h"
-#include "httphandler.h"
-#include "lltrace.h"
-#include "llviewertexture.h"
-
-class LLViewerTexture;
-class LLTextureFetchWorker;
-class LLImageDecodeThread;
-class LLHost;
-class LLViewerAssetStats;
-class LLTextureCache;
-class LLTextureFetchTester;
-
-// Interface class
-
-class LLTextureFetch : public LLWorkerThread
-{
-    friend class LLTextureFetchWorker;
-
-public:
-    static std::string getStateString(S32 state);
-
-    LLTextureFetch(LLTextureCache* cache, bool threaded, bool qa_mode);
-    ~LLTextureFetch();
-
-    class TFRequest;
-
-    // Threads:  Tmain
-    /*virtual*/ size_t update(F32 max_time_ms);
-
-    // called in the main thread after the TextureCacheThread shuts down.
-    // Threads:  Tmain
-    void shutDownTextureCacheThread();
-
-    //called in the main thread after the ImageDecodeThread shuts down.
-    // Threads:  Tmain
-    void shutDownImageDecodeThread();
-
-    // Threads:  T* (but Tmain mostly)
-    S32 createRequest(FTType f_type, const std::string& url, const LLUUID& id, const LLHost& host, F32 priority,
-                       S32 w, S32 h, S32 c, S32 discard, bool needs_aux, bool can_use_http);
-
-    // Requests that a fetch operation be deleted from the queue.
-    // If @cancel is true, also stops any I/O operations pending.
-    // Actual delete will be scheduled and performed later.
-    //
-    // Note:  This *looks* like an override/variant of the
-    // base class's deleteRequest() but is functionally quite
-    // different.
-    //
-    // Threads:  T*
-    void deleteRequest(const LLUUID& id, bool cancel);
-
-    void deleteAllRequests();
-
-    // Threads:  T*
-    // keep in mind that if fetcher isn't done, it still might need original raw image
-    bool getRequestFinished(const LLUUID& id, S32& discard_level,
-                            LLPointer<LLImageRaw>& raw, LLPointer<LLImageRaw>& aux,
-                            LLCore::HttpStatus& last_http_get_status);
-
-    // Threads:  T*
-    bool updateRequestPriority(const LLUUID& id, F32 priority);
-
-    // Threads:  T* (but not safe)
-    void setTextureBandwidth(F32 bandwidth) { mTextureBandwidth = bandwidth; }
-
-    // Threads:  T* (but not safe)
-    F32 getTextureBandwidth() { return mTextureBandwidth; }
-
-    // Threads:  T*
-    bool isFromLocalCache(const LLUUID& id);
-
-    // get the current fetch state, if any, from the given UUID
-    S32 getFetchState(const LLUUID& id);
-
-    // @return  Fetch state of given image and associates statistics
-    //          See also getStateString
-    // Threads:  T*
-    S32 getFetchState(const LLUUID& id, F32& decode_progress_p, F32& requested_priority_p,
-                      U32& fetch_priority_p, F32& fetch_dtime_p, F32& request_dtime_p, bool& can_use_http);
-
-    // Debug utility - generally not safe
-    void dump();
-
-    // Threads:  T*
-    S32 getNumRequests();
-
-    // Threads:  T*
-    S32 getNumHTTPRequests();
-
-    // Threads:  T*
-    U32 getTotalNumHTTPRequests();
-
-    // Threads:  T*
-    size_t getPending();
-
-    // Threads:  T*
-    void lockQueue() { mQueueMutex.lock(); }
-
-    // Threads:  T*
-    void unlockQueue() { mQueueMutex.unlock(); }
-
-    // Threads:  T*
-    LLTextureFetchWorker* getWorker(const LLUUID& id);
-
-    // Threads:  T*
-    // Locks:  Mfq
-    LLTextureFetchWorker* getWorkerAfterLock(const LLUUID& id);
-
-    // Commands available to other threads to control metrics gathering operations.
-
-    // Threads:  T*
-    void commandSetRegion(U64 region_handle);
-
-    // Threads:  T*
-    void commandSendMetrics(const std::string & caps_url,
-                            const LLUUID & session_id,
-                            const LLUUID & agent_id,
-                            LLSD& stats_sd);
-
-    // Threads:  T*
-    void commandDataBreak();
-
-    // Threads:  T*
-    LLCore::HttpRequest & getHttpRequest()  { return *mHttpRequest; }
-
-    // Threads:  T*
-    LLCore::HttpRequest::policy_t getPolicyClass() const { return mHttpPolicyClass; }
-
-    // Return a pointer to the shared metrics headers definition.
-    // Does not increment the reference count, caller is required
-    // to do that to hold a reference for any length of time.
-    //
-    // Threads:  T*
-    LLCore::HttpHeaders::ptr_t getMetricsHeaders() const    { return mHttpMetricsHeaders; }
-
-    // Threads:  T*
-    LLCore::HttpRequest::policy_t getMetricsPolicyClass() const { return mHttpMetricsPolicyClass; }
-
-    bool isQAMode() const               { return mQAMode; }
-
-    // ----------------------------------
-    // HTTP resource waiting methods
-
-    // Threads:  T*
-    void addHttpWaiter(const LLUUID & tid);
-
-    // Threads:  T*
-    void removeHttpWaiter(const LLUUID & tid);
-
-    // Threads:  T*
-    bool isHttpWaiter(const LLUUID & tid);
-
-    // If there are slots, release one or more LLTextureFetchWorker
-    // requests from resource wait state (WAIT_HTTP_RESOURCE) to
-    // active (SEND_HTTP_REQ).
-    //
-    // Because this will modify state of many workers, you may not
-    // hold any Mw lock while calling.  This makes it a little
-    // inconvenient to use but that's the rule.
-    //
-    // Threads:  T*
-    // Locks:  -Mw (must not hold any worker when called)
-    void releaseHttpWaiters();
-
-    // Threads:  T*
-    void cancelHttpWaiters();
-
-    // Threads:  T*
-    int getHttpWaitersCount();
-    // ----------------------------------
-    // Stats management
-
-    // Add given counts to the global totals for the states/requests
-    // Threads:  T*
-    void updateStateStats(U32 cache_read, U32 cache_write, U32 res_wait);
-
-    // Return the global counts
-    // Threads:  T*
-    void getStateStats(U32 * cache_read, U32 * cache_write, U32 * res_wait);
-
-    // ----------------------------------
-
-protected:
-    // Threads:  T*
-    void addToHTTPQueue(const LLUUID& id);
-
-    // XXX possible delete
-    // Threads:  T*
-    void removeFromHTTPQueue(const LLUUID& id, S32Bytes received_size);
-
-    // Identical to @deleteRequest but with different arguments
-    // (caller already has the worker pointer).
-    //
-    // Threads:  T*
-    void removeRequest(LLTextureFetchWorker* worker, bool cancel);
-
-    // Overrides from the LLThread tree
-    // Locks:  Ct
-    bool runCondition();
-
-private:
-    // Threads:  Ttf
-    /*virtual*/ void startThread(void);
-
-    // Threads:  Ttf
-    /*virtual*/ void endThread(void);
-
-    // Threads:  Ttf
-    /*virtual*/ void threadedUpdate(void);
-
-    // Threads:  Ttf
-    void commonUpdate();
-
-    // Metrics command helpers
-    /**
-     * Enqueues a command request at the end of the command queue
-     * and wakes up the thread as needed.
-     *
-     * Takes ownership of the TFRequest object.
-     *
-     * Method locks the command queue.
-     *
-     * Threads:  T*
-     */
-    void cmdEnqueue(TFRequest *);
-
-    /**
-     * Returns the first TFRequest object in the command queue or
-     * NULL if none is present.
-     *
-     * Caller acquires ownership of the object and must dispose of it.
-     *
-     * Method locks the command queue.
-     *
-     * Threads:  T*
-     */
-    TFRequest * cmdDequeue();
-
-    /**
-     * Processes the first command in the queue disposing of the
-     * request on completion.  Successive calls are needed to perform
-     * additional commands.
-     *
-     * Method locks the command queue.
-     *
-     * Threads:  Ttf
-     */
-    void cmdDoWork();
-
-public:
-    LLUUID mDebugID;
-    S32 mDebugCount;
-    bool mDebugPause;
-    S32 mPacketCount;
-    S32 mBadPacketCount;
-
-    static LLTrace::CountStatHandle<F64>        sCacheHit;
-    static LLTrace::CountStatHandle<F64>        sCacheAttempt;
-    static LLTrace::SampleStatHandle<F32Seconds> sCacheReadLatency;
-    static LLTrace::SampleStatHandle<F32Seconds> sTexDecodeLatency;
-    static LLTrace::SampleStatHandle<F32Seconds> sCacheWriteLatency;
-    static LLTrace::SampleStatHandle<F32Seconds> sTexFetchLatency;
-    static LLTrace::EventStatHandle<LLUnit<F32, LLUnits::Percent> > sCacheHitRate;
-
-private:
-    LLMutex mQueueMutex;        //to protect mRequestMap and mCommands only
-    LLMutex mNetworkQueueMutex; //to protect mHTTPTextureQueue
-
-    LLTextureCache* mTextureCache;
-
-    // Map of all requests by UUID
-    typedef std::map<LLUUID,LLTextureFetchWorker*> map_t;
-    map_t mRequestMap;                                                  // Mfq
-
-    // Set of requests that require network data
-    typedef std::set<LLUUID> queue_t;
-    queue_t mHTTPTextureQueue;                                          // Mfnq
-    typedef std::map<LLHost,std::set<LLUUID> > cancel_queue_t;
-    F32 mTextureBandwidth;                                              // <none>
-    F32 mMaxBandwidth;                                                  // Mfnq
-    LLTextureInfo mTextureInfo;
-    LLTextureInfo mTextureInfoMainThread;
-
-    // XXX possible delete
-    U32Bits mHTTPTextureBits;                                               // Mfnq
-
-    // XXX possible delete
-    //debug use
-    U32 mTotalHTTPRequests;
-
-    // Out-of-band cross-thread command queue.  This command queue
-    // is logically tied to LLQueuedThread's list of
-    // QueuedRequest instances and so must be covered by the
-    // same locks.
-    typedef std::vector<TFRequest *> command_queue_t;
-    command_queue_t mCommands;                                          // Mfq
-
-    // If true, modifies some behaviors that help with QA tasks.
-    const bool mQAMode;
-
-    // Interfaces and objects into the core http library used
-    // to make our HTTP requests.  These replace the various
-    // LLCurl interfaces used in the past.
-    LLCore::HttpRequest *               mHttpRequest;                   // Ttf
-    LLCore::HttpOptions::ptr_t          mHttpOptions;                   // Ttf
-    LLCore::HttpOptions::ptr_t          mHttpOptionsWithHeaders;        // Ttf
-    LLCore::HttpHeaders::ptr_t          mHttpHeaders;                   // Ttf
-    LLCore::HttpRequest::policy_t       mHttpPolicyClass;               // T*
-    LLCore::HttpHeaders::ptr_t          mHttpMetricsHeaders;            // Ttf
-    LLCore::HttpRequest::policy_t       mHttpMetricsPolicyClass;        // T*
-    S32                                 mHttpHighWater;                 // Ttf
-    S32                                 mHttpLowWater;                  // Ttf
-
-    // We use a resource semaphore to keep HTTP requests in
-    // WAIT_HTTP_RESOURCE2 if there aren't sufficient slots in the
-    // transport.  This keeps them near where they can be cheaply
-    // reprioritized rather than dumping them all across a thread
-    // where it's more expensive to get at them.  Requests in either
-    // SEND_HTTP_REQ or WAIT_HTTP_REQ charge against the semaphore
-    // and tracking state transitions is critical to liveness.
-    //
-    // Originally implemented as a traditional semaphore (heading towards
-    // zero), it now is an outstanding request count that is allowed to
-    // exceed the high water level (but not go below zero).
-    LLAtomicS32                         mHttpSemaphore;                 // Ttf
-
-    typedef std::set<LLUUID> wait_http_res_queue_t;
-    wait_http_res_queue_t               mHttpWaitResource;              // Mfnq
-
-    // Cumulative stats on the states/requests issued by
-    // textures running through here.
-    U32 mTotalCacheReadCount;                                           // Mfq
-    U32 mTotalCacheWriteCount;                                          // Mfq
-    U32 mTotalResourceWaitCount;                                        // Mfq
-
-public:
-    // A probabilistically-correct indicator that the current
-    // attempt to log metrics follows a break in the metrics stream
-    // reporting due to either startup or a problem POSTing data.
-    static volatile bool svMetricsDataBreak;
-
-public:
-    //debug use
-    enum e_tex_source
-    {
-        FROM_ALL = 0,
-        FROM_HTTP_ONLY,
-        INVALID_SOURCE
-    };
-
-    static LLTextureFetchTester* sTesterp;
-
-private:
-    e_tex_source mFetchSource;
-    e_tex_source mOriginFetchSource;
-
-    // Retry logic
-    //LLAdaptiveRetryPolicy mFetchRetryPolicy;
-
-public:
-    void setLoadSource(e_tex_source source) {mFetchSource = source;}
-    void resetLoadSource() {mFetchSource = mOriginFetchSource;}
-    bool canLoadFromCache() { return mFetchSource != FROM_HTTP_ONLY;}
-};
-
-//debug use
-class LLViewerFetchedTexture;
-
-class LLTextureFetchTester : public LLMetricPerformanceTesterBasic
-{
-public:
-    LLTextureFetchTester();
-    ~LLTextureFetchTester();
-
-    void updateStats(const std::map<S32, F32> states_timers, const F32 fetch_time, const F32 other_states_time, const S32 file_size);
-
-protected:
-    /*virtual*/ void outputTestRecord(LLSD* sd);
-
-private:
-
-    F32 mTextureFetchTime;
-    F32 mSkippedStatesTime;
-    S32 mFileSize;
-
-    std::map<S32, F32> mStateTimersMap;
-};
-#endif // LL_LLTEXTUREFETCH_H
-
+/**
+ * @file lltexturefetch.h
+ * @brief Object for managing texture fetches.
+ *
+ * $LicenseInfo:firstyear=2000&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2012-2013, 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
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_LLTEXTUREFETCH_H
+#define LL_LLTEXTUREFETCH_H
+
+#include <vector>
+#include <map>
+
+#include "lldir.h"
+#include "llimage.h"
+#include "lluuid.h"
+#include "llworkerthread.h"
+#include "lltextureinfo.h"
+#include "llimageworker.h"
+#include "httprequest.h"
+#include "httpoptions.h"
+#include "httpheaders.h"
+#include "httphandler.h"
+#include "lltrace.h"
+#include "llviewertexture.h"
+
+class LLViewerTexture;
+class LLTextureFetchWorker;
+class LLImageDecodeThread;
+class LLHost;
+class LLViewerAssetStats;
+class LLTextureCache;
+class LLTextureFetchTester;
+
+// Interface class
+
+class LLTextureFetch : public LLWorkerThread
+{
+    friend class LLTextureFetchWorker;
+
+public:
+    static std::string getStateString(S32 state);
+
+    LLTextureFetch(LLTextureCache* cache, bool threaded, bool qa_mode);
+    ~LLTextureFetch();
+
+    class TFRequest;
+
+    // Threads:  Tmain
+    /*virtual*/ size_t update(F32 max_time_ms);
+
+    // called in the main thread after the TextureCacheThread shuts down.
+    // Threads:  Tmain
+    void shutDownTextureCacheThread();
+
+    //called in the main thread after the ImageDecodeThread shuts down.
+    // Threads:  Tmain
+    void shutDownImageDecodeThread();
+
+    // Threads:  T* (but Tmain mostly)
+    S32 createRequest(FTType f_type, const std::string& url, const LLUUID& id, const LLHost& host, F32 priority,
+                       S32 w, S32 h, S32 c, S32 discard, bool needs_aux, bool can_use_http);
+
+    // Requests that a fetch operation be deleted from the queue.
+    // If @cancel is true, also stops any I/O operations pending.
+    // Actual delete will be scheduled and performed later.
+    //
+    // Note:  This *looks* like an override/variant of the
+    // base class's deleteRequest() but is functionally quite
+    // different.
+    //
+    // Threads:  T*
+    void deleteRequest(const LLUUID& id, bool cancel);
+
+    void deleteAllRequests();
+
+    // Threads:  T*
+    // keep in mind that if fetcher isn't done, it still might need original raw image
+    bool getRequestFinished(const LLUUID& id, S32& discard_level,
+                            LLPointer<LLImageRaw>& raw, LLPointer<LLImageRaw>& aux,
+                            LLCore::HttpStatus& last_http_get_status);
+
+    // Threads:  T*
+    bool updateRequestPriority(const LLUUID& id, F32 priority);
+
+    // Threads:  T* (but not safe)
+    void setTextureBandwidth(F32 bandwidth) { mTextureBandwidth = bandwidth; }
+
+    // Threads:  T* (but not safe)
+    F32 getTextureBandwidth() { return mTextureBandwidth; }
+
+    // Threads:  T*
+    bool isFromLocalCache(const LLUUID& id);
+
+    // get the current fetch state, if any, from the given UUID
+    S32 getFetchState(const LLUUID& id);
+
+    // @return  Fetch state of given image and associates statistics
+    //          See also getStateString
+    // Threads:  T*
+    S32 getFetchState(const LLUUID& id, F32& decode_progress_p, F32& requested_priority_p,
+                      U32& fetch_priority_p, F32& fetch_dtime_p, F32& request_dtime_p, bool& can_use_http);
+
+    // Debug utility - generally not safe
+    void dump();
+
+    // Threads:  T*
+    S32 getNumRequests();
+
+    // Threads:  T*
+    S32 getNumHTTPRequests();
+
+    // Threads:  T*
+    U32 getTotalNumHTTPRequests();
+
+    // Threads:  T*
+    size_t getPending();
+
+    // Threads:  T*
+    void lockQueue() { mQueueMutex.lock(); }
+
+    // Threads:  T*
+    void unlockQueue() { mQueueMutex.unlock(); }
+
+    // Threads:  T*
+    LLTextureFetchWorker* getWorker(const LLUUID& id);
+
+    // Threads:  T*
+    // Locks:  Mfq
+    LLTextureFetchWorker* getWorkerAfterLock(const LLUUID& id);
+
+    // Commands available to other threads to control metrics gathering operations.
+
+    // Threads:  T*
+    void commandSetRegion(U64 region_handle);
+
+    // Threads:  T*
+    void commandSendMetrics(const std::string & caps_url,
+                            const LLUUID & session_id,
+                            const LLUUID & agent_id,
+                            LLSD& stats_sd);
+
+    // Threads:  T*
+    void commandDataBreak();
+
+    // Threads:  T*
+    LLCore::HttpRequest & getHttpRequest()  { return *mHttpRequest; }
+
+    // Threads:  T*
+    LLCore::HttpRequest::policy_t getPolicyClass() const { return mHttpPolicyClass; }
+
+    // Return a pointer to the shared metrics headers definition.
+    // Does not increment the reference count, caller is required
+    // to do that to hold a reference for any length of time.
+    //
+    // Threads:  T*
+    LLCore::HttpHeaders::ptr_t getMetricsHeaders() const    { return mHttpMetricsHeaders; }
+
+    // Threads:  T*
+    LLCore::HttpRequest::policy_t getMetricsPolicyClass() const { return mHttpMetricsPolicyClass; }
+
+    bool isQAMode() const               { return mQAMode; }
+
+    // ----------------------------------
+    // HTTP resource waiting methods
+
+    // Threads:  T*
+    void addHttpWaiter(const LLUUID & tid);
+
+    // Threads:  T*
+    void removeHttpWaiter(const LLUUID & tid);
+
+    // Threads:  T*
+    bool isHttpWaiter(const LLUUID & tid);
+
+    // If there are slots, release one or more LLTextureFetchWorker
+    // requests from resource wait state (WAIT_HTTP_RESOURCE) to
+    // active (SEND_HTTP_REQ).
+    //
+    // Because this will modify state of many workers, you may not
+    // hold any Mw lock while calling.  This makes it a little
+    // inconvenient to use but that's the rule.
+    //
+    // Threads:  T*
+    // Locks:  -Mw (must not hold any worker when called)
+    void releaseHttpWaiters();
+
+    // Threads:  T*
+    void cancelHttpWaiters();
+
+    // Threads:  T*
+    int getHttpWaitersCount();
+    // ----------------------------------
+    // Stats management
+
+    // Add given counts to the global totals for the states/requests
+    // Threads:  T*
+    void updateStateStats(U32 cache_read, U32 cache_write, U32 res_wait);
+
+    // Return the global counts
+    // Threads:  T*
+    void getStateStats(U32 * cache_read, U32 * cache_write, U32 * res_wait);
+
+    // ----------------------------------
+
+protected:
+    // Threads:  T*
+    void addToHTTPQueue(const LLUUID& id);
+
+    // XXX possible delete
+    // Threads:  T*
+    void removeFromHTTPQueue(const LLUUID& id, S32Bytes received_size);
+
+    // Identical to @deleteRequest but with different arguments
+    // (caller already has the worker pointer).
+    //
+    // Threads:  T*
+    void removeRequest(LLTextureFetchWorker* worker, bool cancel);
+
+    // Overrides from the LLThread tree
+    // Locks:  Ct
+    bool runCondition();
+
+private:
+    // Threads:  Ttf
+    /*virtual*/ void startThread(void);
+
+    // Threads:  Ttf
+    /*virtual*/ void endThread(void);
+
+    // Threads:  Ttf
+    /*virtual*/ void threadedUpdate(void);
+
+    // Threads:  Ttf
+    void commonUpdate();
+
+    // Metrics command helpers
+    /**
+     * Enqueues a command request at the end of the command queue
+     * and wakes up the thread as needed.
+     *
+     * Takes ownership of the TFRequest object.
+     *
+     * Method locks the command queue.
+     *
+     * Threads:  T*
+     */
+    void cmdEnqueue(TFRequest *);
+
+    /**
+     * Returns the first TFRequest object in the command queue or
+     * NULL if none is present.
+     *
+     * Caller acquires ownership of the object and must dispose of it.
+     *
+     * Method locks the command queue.
+     *
+     * Threads:  T*
+     */
+    TFRequest * cmdDequeue();
+
+    /**
+     * Processes the first command in the queue disposing of the
+     * request on completion.  Successive calls are needed to perform
+     * additional commands.
+     *
+     * Method locks the command queue.
+     *
+     * Threads:  Ttf
+     */
+    void cmdDoWork();
+
+public:
+    LLUUID mDebugID;
+    S32 mDebugCount;
+    bool mDebugPause;
+    S32 mPacketCount;
+    S32 mBadPacketCount;
+
+    static LLTrace::CountStatHandle<F64>        sCacheHit;
+    static LLTrace::CountStatHandle<F64>        sCacheAttempt;
+    static LLTrace::SampleStatHandle<F32Seconds> sCacheReadLatency;
+    static LLTrace::SampleStatHandle<F32Seconds> sTexDecodeLatency;
+    static LLTrace::SampleStatHandle<F32Seconds> sCacheWriteLatency;
+    static LLTrace::SampleStatHandle<F32Seconds> sTexFetchLatency;
+    static LLTrace::EventStatHandle<LLUnit<F32, LLUnits::Percent> > sCacheHitRate;
+
+private:
+    LLMutex mQueueMutex;        //to protect mRequestMap and mCommands only
+    LLMutex mNetworkQueueMutex; //to protect mHTTPTextureQueue
+
+    LLTextureCache* mTextureCache;
+
+    // Map of all requests by UUID
+    typedef std::map<LLUUID,LLTextureFetchWorker*> map_t;
+    map_t mRequestMap;                                                  // Mfq
+
+    // Set of requests that require network data
+    typedef std::set<LLUUID> queue_t;
+    queue_t mHTTPTextureQueue;                                          // Mfnq
+    typedef std::map<LLHost,std::set<LLUUID> > cancel_queue_t;
+    F32 mTextureBandwidth;                                              // <none>
+    F32 mMaxBandwidth;                                                  // Mfnq
+    LLTextureInfo mTextureInfo;
+    LLTextureInfo mTextureInfoMainThread;
+
+    // XXX possible delete
+    U32Bits mHTTPTextureBits;                                               // Mfnq
+
+    // XXX possible delete
+    //debug use
+    U32 mTotalHTTPRequests;
+
+    // Out-of-band cross-thread command queue.  This command queue
+    // is logically tied to LLQueuedThread's list of
+    // QueuedRequest instances and so must be covered by the
+    // same locks.
+    typedef std::vector<TFRequest *> command_queue_t;
+    command_queue_t mCommands;                                          // Mfq
+
+    // If true, modifies some behaviors that help with QA tasks.
+    const bool mQAMode;
+
+    // Interfaces and objects into the core http library used
+    // to make our HTTP requests.  These replace the various
+    // LLCurl interfaces used in the past.
+    LLCore::HttpRequest *               mHttpRequest;                   // Ttf
+    LLCore::HttpOptions::ptr_t          mHttpOptions;                   // Ttf
+    LLCore::HttpOptions::ptr_t          mHttpOptionsWithHeaders;        // Ttf
+    LLCore::HttpHeaders::ptr_t          mHttpHeaders;                   // Ttf
+    LLCore::HttpRequest::policy_t       mHttpPolicyClass;               // T*
+    LLCore::HttpHeaders::ptr_t          mHttpMetricsHeaders;            // Ttf
+    LLCore::HttpRequest::policy_t       mHttpMetricsPolicyClass;        // T*
+    S32                                 mHttpHighWater;                 // Ttf
+    S32                                 mHttpLowWater;                  // Ttf
+
+    // We use a resource semaphore to keep HTTP requests in
+    // WAIT_HTTP_RESOURCE2 if there aren't sufficient slots in the
+    // transport.  This keeps them near where they can be cheaply
+    // reprioritized rather than dumping them all across a thread
+    // where it's more expensive to get at them.  Requests in either
+    // SEND_HTTP_REQ or WAIT_HTTP_REQ charge against the semaphore
+    // and tracking state transitions is critical to liveness.
+    //
+    // Originally implemented as a traditional semaphore (heading towards
+    // zero), it now is an outstanding request count that is allowed to
+    // exceed the high water level (but not go below zero).
+    LLAtomicS32                         mHttpSemaphore;                 // Ttf
+
+    typedef std::set<LLUUID> wait_http_res_queue_t;
+    wait_http_res_queue_t               mHttpWaitResource;              // Mfnq
+
+    // Cumulative stats on the states/requests issued by
+    // textures running through here.
+    U32 mTotalCacheReadCount;                                           // Mfq
+    U32 mTotalCacheWriteCount;                                          // Mfq
+    U32 mTotalResourceWaitCount;                                        // Mfq
+
+public:
+    // A probabilistically-correct indicator that the current
+    // attempt to log metrics follows a break in the metrics stream
+    // reporting due to either startup or a problem POSTing data.
+    static volatile bool svMetricsDataBreak;
+
+public:
+    //debug use
+    enum e_tex_source
+    {
+        FROM_ALL = 0,
+        FROM_HTTP_ONLY,
+        INVALID_SOURCE
+    };
+
+    static LLTextureFetchTester* sTesterp;
+
+private:
+    e_tex_source mFetchSource;
+    e_tex_source mOriginFetchSource;
+
+    // Retry logic
+    //LLAdaptiveRetryPolicy mFetchRetryPolicy;
+
+public:
+    void setLoadSource(e_tex_source source) {mFetchSource = source;}
+    void resetLoadSource() {mFetchSource = mOriginFetchSource;}
+    bool canLoadFromCache() { return mFetchSource != FROM_HTTP_ONLY;}
+};
+
+//debug use
+class LLViewerFetchedTexture;
+
+class LLTextureFetchTester : public LLMetricPerformanceTesterBasic
+{
+public:
+    LLTextureFetchTester();
+    ~LLTextureFetchTester();
+
+    void updateStats(const std::map<S32, F32> states_timers, const F32 fetch_time, const F32 other_states_time, const S32 file_size);
+
+protected:
+    /*virtual*/ void outputTestRecord(LLSD* sd);
+
+private:
+
+    F32 mTextureFetchTime;
+    F32 mSkippedStatesTime;
+    S32 mFileSize;
+
+    std::map<S32, F32> mStateTimersMap;
+};
+#endif // LL_LLTEXTUREFETCH_H
+
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