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+/** 
+ * @file llappviewer.h
+ * @brief The LLAppViewer class declaration
+ *
+ * $LicenseInfo:firstyear=2007&license=viewergpl$
+ * 
+ * Copyright (c) 2007, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlife.com/developers/opensource/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at http://secondlife.com/developers/opensource/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_LLAPPVIEWER_H
+#define LL_LLAPPVIEWER_H
+
+class LLTextureCache;
+class LLWorkerThread;
+class LLTextureFetch;
+
+class LLAppViewer : public LLApp
+{
+public:
+	LLAppViewer();
+	virtual ~LLAppViewer();
+
+	// *NOTE:Mani - Don't use this!
+	// Having 
+	static LLAppViewer* instance() {return sInstance; } 
+
+	//
+	// Main application logic
+	//
+	virtual bool init();			// Override to do application initialization
+	virtual bool cleanup();			// Override to do application cleanup
+	virtual bool mainLoop(); // Override for the application main loop.  Needs to at least gracefully notice the QUITTING state and exit.
+
+	// Application control
+	void forceQuit(); // Puts the viewer into 'shutting down without error' mode.
+	void requestQuit(); // Request a quit. A kinder, gentler quit.
+	void userQuit(); // The users asks to quit. Confirm, then requestQuit()
+    void earlyExit(const LLString& msg); // Display an error dialog and forcibly quit.
+    void forceExit(S32 arg); // exit() immediately (after some cleanup).
+    void abortQuit();  // Called to abort a quit request.
+
+    bool quitRequested() { return mQuitRequested; }
+    bool logoutRequestSent() { return mLogoutRequestSent; }
+
+	// *FIX: This is meant to stay only until the command line issues are hashed out with repect to LLApp::parseCommandLine
+	// This version stores the argc and argv for later usage, make sure the params passed in last as long as this class.
+	bool tempStoreCommandOptions(int argc, char** argv);
+
+	// write string to "debug_info.log", used for crash reporting.
+	void writeDebug(const char *str); 
+	void writeDebug(const std::string& str) { writeDebug(str.c_str()); };
+	void closeDebug();
+
+	const LLOSInfo& getOSInfo() const { return mSysOSInfo; }
+
+	// Report true if under the control of a debugger. A null-op default.
+	virtual bool beingDebugged() { return false; } 
+
+	S32 getCrashBehavior() const { return mCrashBehavior; } 
+	void setCrashBehavior(S32 cb);
+	virtual void handleCrashReporting() = 0; // What to do with crash report?
+	static void handleViewerCrash(); // Hey! The viewer crashed. Do this.
+
+	// Thread accessors
+	static LLTextureCache* getTextureCache() { return sTextureCache; }
+	static LLWorkerThread* getImageDecodeThread() { return sImageDecodeThread; }
+	static LLTextureFetch* getTextureFetch() { return sTextureFetch; }
+
+	const std::string& getSerialNumber() { return mSerialNumber; }
+	
+	// *FIX:Mani purgeCache was made public for parse_args().
+	// If that beast is gone, make it private.
+	void purgeCache(); // Clear the local cache. 
+	bool getPurgeCache() const { return mPurgeCache; }
+	
+	const LLString& getSecondLifeTitle() const; // The Second Life title.
+	const LLString& getWindowTitle() const; // The window display name.
+
+    // Helpers for URIs
+    void addLoginURI(const std::string& uri);
+    void setHelperURI(const std::string& uri);
+    const std::vector<std::string>& getLoginURIs() const;
+    const std::string& getHelperURI() const;
+    void resetURIs() const;
+
+    void forceDisconnect(const LLString& msg); // Force disconnection, with a message to the user.
+    void badNetworkHandler(); // Cause a crash state due to bad network packet.
+
+	bool hasSavedFinalSnapshot() { return mSavedFinalSnapshot; }
+	void saveFinalSnapshot(); 
+
+    void loadNameCache();
+    void saveNameCache();
+
+    // LLAppViewer testing helpers.
+    // *NOTE: These will potentially crash the viewer. Only for debugging.
+    virtual void forceErrorLLError();
+    virtual void forceErrorBreakpoint();
+    virtual void forceErrorBadMemoryAccess();
+    virtual void forceErrorInifiniteLoop();
+    virtual void forceErrorSoftwareException();
+
+protected:
+	virtual bool initWindow(); // Initialize the viewer's window.
+	virtual bool initLogging(); // Initialize log files, logging system, return false on failure.
+	virtual bool initHardwareTest() { return true; } // A false result indicates the app should quit.
+	
+	virtual std::string generateSerialNumber() = 0; // Platforms specific classes generate this.
+
+
+private:
+
+	bool initEarlyConfiguration(); // Initialize setting needed by crash reporting.
+	bool initThreads(); // Initialize viewer threads, return false on failure.
+	bool initConfiguration(); // Initialize settings from the command line/config file.
+
+	bool initCache(); // Initialize local client cache.
+
+	bool doConfigFromCommandLine(); // calls parse args.
+
+	void cleanupSavedSettings(); // Sets some config data to current or default values during cleanup.
+	void removeCacheFiles(const char *filemask); // Deletes cached files the match the given wildcard.
+
+	void writeSystemInfo(); // Write system info to "debug_info.log"
+
+	bool anotherInstanceRunning(); 
+	void initMarkerFile(); 
+	void removeMarkerFile();
+    
+    void idle(); 
+    void idleShutdown();
+    void idleNetwork();
+
+    void sendLogoutRequest();
+    void disconnectViewer();
+
+	// *FIX: the app viewer class should be some sort of singleton, no?
+	// Perhaps its child class is the singleton and this should be an abstract base.
+	static LLAppViewer* sInstance; 
+
+    bool mSecondInstance; // Is this a second instance of the app?
+
+	FILE *mMarkerFile; // A file created to indicate the app is running.
+	bool mLastExecFroze; // Set on init if the marker file was found.
+
+	FILE* mDebugFile; // output stream written to via writeDebug()
+
+	LLOSInfo mSysOSInfo; 
+	S32 mCrashBehavior;
+	bool mReportedCrash;
+
+	// Thread objects.
+	static LLTextureCache* sTextureCache; 
+	static LLWorkerThread* sImageDecodeThread; 
+	static LLTextureFetch* sTextureFetch; 
+
+	S32 mNumSessions;
+
+	std::string mSerialNumber;
+	bool mPurgeCache;
+    bool mPurgeOnExit;
+
+	bool mSavedFinalSnapshot;
+
+    bool mQuitRequested;				// User wants to quit, may have modified documents open.
+    bool mLogoutRequestSent;			// Disconnect message sent to simulator, no longer safe to send messages to the sim.
+};
+
+// consts from viewer.h
+const S32 AGENT_UPDATES_PER_SECOND  = 10;
+
+// Globals with external linkage. From viewer.h
+// *NOTE:Mani - These will be removed as the Viewer App Cleanup project continues.
+//
+// "// llstartup" indicates that llstartup is the only client for this global.
+
+extern bool gVerifySSLCert; // parse_args setting used by llxmlrpctransaction.cpp
+extern BOOL gHandleKeysAsync; // gSavedSettings used by llviewerdisplay.cpp & llviewermenu.cpp
+extern BOOL gProbeHardware;
+extern LLString gDisabledMessage; // llstartup
+extern BOOL gHideLinks; // used by llpanellogin, lllfloaterbuycurrency, llstartup
+extern BOOL gInProductionGrid; 
+
+extern BOOL	gAllowIdleAFK;
+extern F32 gAFKTimeout;
+extern BOOL	gShowObjectUpdates;
+
+extern BOOL gLogMessages; // llstartup 
+extern std::string gChannelName;
+extern BOOL gUseAudio; // llstartup
+
+extern LLString gCmdLineFirstName; // llstartup
+extern LLString gCmdLineLastName;
+extern LLString gCmdLinePassword;
+
+extern BOOL gAutoLogin; // llstartup
+extern const char* DEFAULT_SETTINGS_FILE; // llstartup
+
+extern BOOL gRequestInventoryLibrary; // llstartup
+extern BOOL gGodConnect; // llstartup
+
+extern BOOL gAcceptTOS;
+extern BOOL gAcceptCriticalMessage;
+
+extern LLUUID	gViewerDigest;  // MD5 digest of the viewer's executable file.
+extern BOOL gLastExecFroze; // llstartup
+
+extern U32 gFrameCount;
+extern U32 gForegroundFrameCount;
+
+extern LLPumpIO* gServicePump;
+
+// Is the Pacific time zone (aka server time zone)
+// currently in daylight savings time?
+extern BOOL gPacificDaylightTime;
+
+extern U64      gFrameTime;					// The timestamp of the most-recently-processed frame
+extern F32		gFrameTimeSeconds;			// Loses msec precision after ~4.5 hours...
+extern F32		gFrameIntervalSeconds;		// Elapsed time between current and previous gFrameTimeSeconds
+extern F32		gFPSClamped;						// Frames per second, smoothed, weighted toward last frame
+extern F32		gFrameDTClamped;
+extern U64		gStartTime;
+
+extern LLTimer gRenderStartTime;
+extern LLFrameTimer gForegroundTime;
+
+extern F32 gLogoutMaxTime;
+extern LLTimer gLogoutTimer;
+
+extern F32 gSimLastTime; 
+extern F32 gSimFrames;
+
+extern LLUUID gInventoryLibraryOwner;
+extern LLUUID gInventoryLibraryRoot;
+
+extern BOOL		gDisconnected;
+extern BOOL		gDisableVoice;
+
+// Map scale in pixels per region
+extern F32 gMapScale;
+extern F32 gMiniMapScale;
+
+extern LLFrameTimer	gRestoreGLTimer;
+extern BOOL			gRestoreGL;
+extern BOOL		gUseWireframe;
+
+extern F32 gMouseSensitivity;
+extern BOOL gInvertMouse;
+
+// VFS globals - gVFS is for general use
+// gStaticVFS is read-only and is shipped w/ the viewer
+// it has pre-cache data like the UI .TGAs
+extern LLVFS	*gStaticVFS;
+
+extern LLMemoryInfo gSysMemory;
+
+extern bool gPreloadImages;
+extern bool gPreloadSounds;
+
+extern LLString gLastVersionChannel;
+
+extern LLVector3 gWindVec;
+extern LLVector3 gRelativeWindVec;
+extern U32	gPacketsIn;
+extern BOOL gPrintMessagesThisFrame;
+
+extern LLUUID gSunTextureID;
+extern LLUUID gMoonTextureID;
+
+extern BOOL gUseConsole; 
+
+extern BOOL gRandomizeFramerate;
+extern BOOL gPeriodicSlowFrame;
+
+extern BOOL gQAMode;
+#endif // LL_LLAPPVIEWER_H