llappviewer.cpp

/**
 * @file llappviewer.cpp
 * @brief The LLAppViewer class definitions
 *
 * $LicenseInfo:firstyear=2007&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2012, 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 "llappviewer.h"

// Viewer includes
#include "llversioninfo.h"
#include "llfeaturemanager.h"
#include "lluictrlfactory.h"
#include "lltexteditor.h"
#include "llenvironment.h"
#include "llerrorcontrol.h"
#include "lleventtimer.h"
#include "llviewertexturelist.h"
#include "llgroupmgr.h"
#include "llagent.h"
#include "llagentcamera.h"
#include "llagentlanguage.h"
#include "llagentui.h"
#include "llagentwearables.h"
#include "lldirpicker.h"
#include "llfloaterimcontainer.h"
#include "llimprocessing.h"
#include "llwindow.h"
#include "llviewerstats.h"
#include "llviewerstatsrecorder.h"
#include "llmarketplacefunctions.h"
#include "llmarketplacenotifications.h"
#include "llmd5.h"
#include "llmeshrepository.h"
#include "llpumpio.h"
#include "llmimetypes.h"
#include "llslurl.h"
#include "llstartup.h"
#include "llfocusmgr.h"
#include "llviewerjoystick.h"
#include "llallocator.h"
#include "llcalc.h"
#include "llconversationlog.h"
#if LL_WINDOWS
#include "lldxhardware.h"
#endif
#include "lltexturestats.h"
#include "lltrace.h"
#include "lltracethreadrecorder.h"
#include "llviewerwindow.h"
#include "llviewerdisplay.h"
#include "llviewermedia.h"
#include "llviewerparcelaskplay.h"
#include "llviewerparcelmedia.h"
#include "llviewershadermgr.h"
#include "llviewermediafocus.h"
#include "llviewermessage.h"
#include "llviewerobjectlist.h"
#include "llworldmap.h"
#include "llmutelist.h"
#include "llviewerhelp.h"
#include "lluicolortable.h"
#include "llurldispatcher.h"
#include "llurlhistory.h"
#include "llrender.h"
#include "llteleporthistory.h"
#include "lltoast.h"
#include "llsdutil_math.h"
#include "lllocationhistory.h"
#include "llfasttimerview.h"
#include "llvector4a.h"
#include "llviewermenufile.h"
#include "llvoicechannel.h"
#include "llvoavatarself.h"
#include "llurlmatch.h"
#include "lltextutil.h"
#include "lllogininstance.h"
#include "llprogressview.h"
#include "llvocache.h"
#include "llvopartgroup.h"
// [SL:KB] - Patch: Appearance-Misc | Checked: 2013-02-12 (Catznip-3.4)
#include "llappearancemgr.h"
// [/SL:KB]
// [RLVa:KB] - Checked: 2010-05-03 (RLVa-1.2.0g)
#include "rlvactions.h"
#include "rlvhandler.h"
// [/RLVa:KB]

#include "llweb.h"
// [SL:KB] - Patch: Build-AssetRecovery | Checked: 2011-11-24 (Catznip-3.2)
#include "llfloaterassetrecovery.h"
// [/SL:KB]
#include "llfloatertexturefetchdebugger.h"
#include "llspellcheck.h"
#include "llscenemonitor.h"
#include "llavatarrenderinfoaccountant.h"
#include "lllocalbitmaps.h"

// Linden library includes
#include "llavatarnamecache.h"
#include "lldiriterator.h"
#include "llexperiencecache.h"
#include "llimagej2c.h"
#include "llmemory.h"
#include "llprimitive.h"
#include "llurlaction.h"
#include "llurlentry.h"
#include "llvfile.h"
#include "llvfsthread.h"
#include "llvolumemgr.h"
#include "llxfermanager.h"
#include "llphysicsextensions.h"

#include "llnotificationmanager.h"
#include "llnotifications.h"
#include "llnotificationsutil.h"

#include "llleap.h"
#include "stringize.h"
#include "llcoros.h"
#include "llexception.h"
#if !LL_LINUX
#include "cef/dullahan_version.h"
#endif // LL_LINUX
#include "vlc/libvlc_version.h"

// Third party library includes
#include <boost/bind.hpp>
#include <boost/algorithm/string.hpp>
#include <boost/regex.hpp>
#include <boost/throw_exception.hpp>

#if LL_WINDOWS
#	include <share.h> // For _SH_DENYWR in processMarkerFiles
#else
#   include <sys/file.h> // For processMarkerFiles
#endif

#include "llapr.h"
#include <boost/lexical_cast.hpp>

#include "llviewerkeyboard.h"
#include "lllfsthread.h"
#include "llworkerthread.h"
#include "lltexturecache.h"
#include "lltexturefetch.h"
#include "llimageworker.h"
#include "llevents.h"

// The files below handle dependencies from cleanup.
#include "llkeyframemotion.h"
#include "llworldmap.h"
#include "llhudmanager.h"
#include "lltoolmgr.h"
#include "llassetstorage.h"
#include "llpolymesh.h"
#include "llproxy.h"
#include "llaudioengine.h"
#include "llstreamingaudio.h"
#include "llviewermenu.h"
#include "llselectmgr.h"
#include "lltrans.h"
#include "lltransutil.h"
#include "lltracker.h"
#include "llviewerparcelmgr.h"
#include "llworldmapview.h"
#include "llpostprocess.h"

#include "lldebugview.h"
#include "llconsole.h"
#include "llcontainerview.h"
#include "lltooltip.h"

#include "llsdutil.h"
#include "llsdserialize.h"

#include "llworld.h"
#include "llhudeffecttrail.h"
#include "llvectorperfoptions.h"
#include "llslurl.h"
#include "llwatchdog.h"

// Included so that constants/settings might be initialized
// in save_settings_to_globals()
#include "llbutton.h"
#include "llstatusbar.h"
#include "llsurface.h"
#include "llvosky.h"
#include "llvotree.h"
#include "llvoavatar.h"
#include "llfolderview.h"
#include "llagentpilot.h"
#include "llvovolume.h"
#include "llflexibleobject.h"
#include "llvosurfacepatch.h"
#include "llviewerfloaterreg.h"
#include "llcommandlineparser.h"
#include "llfloatermemleak.h"
#include "llfloaterreg.h"
#include "llfloateroutfitsnapshot.h"
#include "llfloatersnapshot.h"
#include "llsidepanelinventory.h"
#include "llatmosphere.h"

// includes for idle() idleShutdown()
#include "llviewercontrol.h"
#include "lleventnotifier.h"
#include "llcallbacklist.h"
#include "lldeferredsounds.h"
#include "pipeline.h"
#include "llgesturemgr.h"
#include "llsky.h"
#include "llvlmanager.h"
#include "llviewercamera.h"
#include "lldrawpoolbump.h"
#include "llvieweraudio.h"
#include "llimview.h"
#include "llviewerthrottle.h"
#include "llparcel.h"
#include "llavatariconctrl.h"
#include "llgroupiconctrl.h"
#include "llviewerassetstats.h"

// Include for security api initialization
#include "llsecapi.h"
#include "llmachineid.h"
#include "llmainlooprepeater.h"
#include "llcleanup.h"

#include "llcoproceduremanager.h"
#include "llviewereventrecorder.h"

// *FIX: These extern globals should be cleaned up.
// The globals either represent state/config/resource-storage of either
// this app, or another 'component' of the viewer. App globals should be
// moved into the app class, where as the other globals should be
// moved out of here.
// If a global symbol reference seems valid, it will be included
// via header files above.

//----------------------------------------------------------------------------
// llviewernetwork.h
#include "llviewernetwork.h"
// define a self-registering event API object
#include "llappviewerlistener.h"

#if (LL_LINUX || LL_SOLARIS) && LL_GTK
#include "glib.h"
#endif // (LL_LINUX || LL_SOLARIS) && LL_GTK

#if LL_MSVC
// disable boost::lexical_cast warning
#pragma warning (disable:4702)
#endif

static LLAppViewerListener sAppViewerListener(LLAppViewer::instance);

////// Windows-specific includes to the bottom - nasty defines in these pollute the preprocessor
//
//----------------------------------------------------------------------------
// viewer.cpp - these are only used in viewer, should be easily moved.

#if LL_DARWIN
extern void init_apple_menu(const char* product);
#endif // LL_DARWIN

extern BOOL gRandomizeFramerate;
extern BOOL gPeriodicSlowFrame;
extern BOOL gDebugGL;

////////////////////////////////////////////////////////////
// All from the last globals push...

F32 gSimLastTime; // Used in LLAppViewer::init and send_stats()
F32 gSimFrames;

BOOL gShowObjectUpdates = FALSE;
BOOL gUseQuickTime = TRUE;

eLastExecEvent gLastExecEvent = LAST_EXEC_NORMAL;
S32 gLastExecDuration = -1; // (<0 indicates unknown)

#if LL_WINDOWS
#   define LL_PLATFORM_KEY "win"
#elif LL_DARWIN
#   define LL_PLATFORM_KEY "mac"
#elif LL_LINUX
#   define LL_PLATFORM_KEY "lnx"
#else
#   error "Unknown Platform"
#endif
const char* gPlatform = LL_PLATFORM_KEY;

LLSD gDebugInfo;

U32	gFrameCount = 0;
U32 gForegroundFrameCount = 0; // number of frames that app window was in foreground
LLPumpIO* gServicePump = NULL;

U64MicrosecondsImplicit gFrameTime = 0;
F32SecondsImplicit gFrameTimeSeconds = 0.f;
F32SecondsImplicit gFrameIntervalSeconds = 0.f;
F32 gFPSClamped = 10.f;						// Pretend we start at target rate.
F32 gFrameDTClamped = 0.f;					// Time between adjacent checks to network for packets
U64MicrosecondsImplicit	gStartTime = 0; // gStartTime is "private", used only to calculate gFrameTimeSeconds

LLTimer gRenderStartTime;
LLFrameTimer gForegroundTime;
LLFrameTimer gLoggedInTime;
LLTimer gLogoutTimer;
static const F32 LOGOUT_REQUEST_TIME = 6.f;  // this will be cut short by the LogoutReply msg.
F32 gLogoutMaxTime = LOGOUT_REQUEST_TIME;


S32 gPendingMetricsUploads = 0;


BOOL				gDisconnected = FALSE;

// used to restore texture state after a mode switch
LLFrameTimer	gRestoreGLTimer;
BOOL			gRestoreGL = FALSE;
bool			gUseWireframe = FALSE;

//use for remember deferred mode in wireframe switch
bool			gInitialDeferredModeForWireframe = FALSE;

// VFS globals - see llappviewer.h
LLVFS* gStaticVFS = NULL;

LLMemoryInfo gSysMemory;
U64Bytes gMemoryAllocated(0); // updated in display_stats() in llviewerdisplay.cpp

std::string gLastVersionChannel;

LLVector3			gWindVec(3.0, 3.0, 0.0);
LLVector3			gRelativeWindVec(0.0, 0.0, 0.0);

U32		gPacketsIn = 0;

BOOL				gPrintMessagesThisFrame = FALSE;

BOOL gRandomizeFramerate = FALSE;
BOOL gPeriodicSlowFrame = FALSE;

BOOL gCrashOnStartup = FALSE;
BOOL gLLErrorActivated = FALSE;
BOOL gLogoutInProgress = FALSE;

BOOL gSimulateMemLeak = FALSE;

////////////////////////////////////////////////////////////
// Internal globals... that should be removed.
static std::string gArgs;
const int MAX_MARKER_LENGTH = 1024;
const std::string MARKER_FILE_NAME("Alchemy.exec_marker");
const std::string START_MARKER_FILE_NAME("Alchemy.start_marker");
const std::string ERROR_MARKER_FILE_NAME("Alchemy.error_marker");
const std::string LLERROR_MARKER_FILE_NAME("Alchemy.llerror_marker");
const std::string LOGOUT_MARKER_FILE_NAME("Alchemy.logout_marker");
//static BOOL gDoDisconnect = FALSE;
// [RLVa:KB] - Checked: RLVa-2.3
BOOL gDoDisconnect = FALSE;
// [/RLVa:KB]
static std::string gLaunchFileOnQuit;

// Used on Win32 for other apps to identify our window (eg, win_setup)
const char* const VIEWER_WINDOW_CLASSNAME = "Alchemy";

//-- LLDeferredTaskList ------------------------------------------------------

/**
 * A list of deferred tasks.
 *
 * We sometimes need to defer execution of some code until the viewer gets idle,
 * e.g. removing an inventory item from within notifyObservers() may not work out.
 *
 * Tasks added to this list will be executed in the next LLAppViewer::idle() iteration.
 * All tasks are executed only once.
 */
class LLDeferredTaskList final : public LLSingleton<LLDeferredTaskList>
{
	LLSINGLETON_EMPTY_CTOR(LLDeferredTaskList);
	LOG_CLASS(LLDeferredTaskList);

	friend class LLAppViewer;
	typedef boost::signals2::signal<void()> signal_t;

	void addTask(const signal_t::slot_type& cb)
	{
		mSignal.connect(cb);
	}

	void run()
	{
		if (!mSignal.empty())
		{
			mSignal();
			mSignal.disconnect_all_slots();
		}
	}

	signal_t mSignal;
};

//----------------------------------------------------------------------------

// List of entries from strings.xml to always replace
static std::set<std::string> default_trans_args;
void init_default_trans_args()
{
	default_trans_args.insert("SECOND_LIFE"); // World
	default_trans_args.insert("APP_NAME");
	default_trans_args.insert("CAPITALIZED_APP_NAME");
	default_trans_args.insert("SECOND_LIFE_GRID");
	default_trans_args.insert("SUPPORT_SITE");
	// This URL shows up in a surprising number of places in various skin
	// files. We really only want to have to maintain a single copy of it.
	default_trans_args.insert("create_account_url");
}

//----------------------------------------------------------------------------
// File scope definitons
const char *VFS_DATA_FILE_BASE = "data.db2.x.";
const char *VFS_INDEX_FILE_BASE = "index.db2.x.";


struct SettingsFile : public LLInitParam::Block<SettingsFile>
{
	Mandatory<std::string>	name;
	Optional<std::string>	file_name;
	Optional<bool>			required,
							persistent;
	Optional<std::string>	file_name_setting;

	SettingsFile()
	:	name("name"),
		file_name("file_name"),
		required("required", false),
		persistent("persistent", true),
		file_name_setting("file_name_setting")
	{}
};

struct SettingsGroup : public LLInitParam::Block<SettingsGroup>
{
	Mandatory<std::string>	name;
	Mandatory<S32>			path_index;
	Multiple<SettingsFile>	files;

	SettingsGroup()
	:	name("name"),
		path_index("path_index"),
		files("file")
	{}
};

struct SettingsFiles : public LLInitParam::Block<SettingsFiles>
{
	Multiple<SettingsGroup>	groups;

	SettingsFiles()
	: groups("group")
	{}
};

static std::string gWindowTitle;

//----------------------------------------------------------------------------
// Metrics logging control constants
//----------------------------------------------------------------------------
static const F32 METRICS_INTERVAL_DEFAULT = 600.0;
static const F32 METRICS_INTERVAL_QA = 30.0;
static F32 app_metrics_interval = METRICS_INTERVAL_DEFAULT;
static bool app_metrics_qa_mode = false;

void idle_afk_check()
{
	// check idle timers
	F32 current_idle = gAwayTriggerTimer.getElapsedTimeF32();
	static const LLCachedControl<S32> afk_timeout_cc(gSavedSettings, "AFKTimeout");
// [RLVa:KB] - Checked: 2010-05-03 (RLVa-1.2.0g) | Modified: RLVa-1.2.0g
	// Enforce an idle time of 30 minutes if @allowidle=n restricted
	F32 afk_timeout = (!gRlvHandler.hasBehaviour(RLV_BHVR_ALLOWIDLE)) ? afk_timeout_cc : 60 * 30;
// [/RLVa:KB]
//	F32 afk_timeout  = gSavedSettings.getS32("AFKTimeout");
	if (afk_timeout && (current_idle > afk_timeout) && ! gAgent.getAFK())
	{
		LL_INFOS("IdleAway") << "Idle more than " << afk_timeout << " seconds: automatically changing to Away status" << LL_ENDL;
		gAgent.setAFK();
	}
}

// A callback set in LLAppViewer::init()
static void ui_audio_callback(const LLUUID& uuid)
{
	if (gAudiop)
	{
		SoundData soundData(uuid, gAgent.getID(), 1.0f, LLAudioEngine::AUDIO_TYPE_UI);
		gAudiop->triggerSound(soundData);
	}
}

// A callback set in LLAppViewer::init()
static void deferred_ui_audio_callback(const LLUUID& uuid)
{
	if (gAudiop)
	{
		SoundData soundData(uuid, gAgent.getID(), 1.0f, LLAudioEngine::AUDIO_TYPE_UI);
		LLDeferredSounds::instance().deferSound(soundData);
	}
}

bool	create_text_segment_icon_from_url_match(LLUrlMatch* match,LLTextBase* base)
{
	if(!match || !base || base->getPlainText())
		return false;

	LLUUID match_id = match->getID();

	LLIconCtrl* icon;

	if( match->getMenuName() == "menu_url_group.xml" // See LLUrlEntryGroup constructor
		|| gAgent.isInGroup(match_id, TRUE)) //This check seems unfiting, urls are either /agent or /group
	{
		LLGroupIconCtrl::Params icon_params;
		icon_params.group_id = match_id;
		icon_params.rect = LLRect(0, 16, 16, 0);
		icon_params.visible = true;
		icon = LLUICtrlFactory::instance().create<LLGroupIconCtrl>(icon_params);
	}
	else
	{
		LLAvatarIconCtrl::Params icon_params;
		icon_params.avatar_id = match_id;
		icon_params.rect = LLRect(0, 16, 16, 0);
		icon_params.visible = true;
		icon = LLUICtrlFactory::instance().create<LLAvatarIconCtrl>(icon_params);
	}

	LLInlineViewSegment::Params params;
	params.force_newline = false;
	params.view = icon;
	params.left_pad = 4;
	params.right_pad = 4;
	params.top_pad = -2;
	params.bottom_pad = 2;

	base->appendWidget(params," ",false);

	return true;
}

// Use these strictly for things that are constructed at startup,
// or for things that are performance critical.  JC
static void settings_to_globals()
{
	LLBUTTON_H_PAD		= gSavedSettings.getS32("ButtonHPad");
	BTN_HEIGHT_SMALL	= gSavedSettings.getS32("ButtonHeightSmall");
	BTN_HEIGHT			= gSavedSettings.getS32("ButtonHeight");

	MENU_BAR_HEIGHT		= gSavedSettings.getS32("MenuBarHeight");
	MENU_BAR_WIDTH		= gSavedSettings.getS32("MenuBarWidth");

	LLSurface::setTextureSize(gSavedSettings.getU32("RegionTextureSize"));

	LLRender::sGLCoreProfile = gSavedSettings.getBOOL("RenderGLCoreProfile");
	LLRender::sNsightDebugSupport = gSavedSettings.getBOOL("RenderNsightDebugSupport");
	LLVertexBuffer::sUseVAO = gSavedSettings.getBOOL("RenderUseVAO");
	LLImageGL::sGlobalUseAnisotropic	= gSavedSettings.getBOOL("RenderAnisotropic");
	LLImageGL::sCompressTextures		= gSavedSettings.getBOOL("RenderCompressTextures");
	LLVOVolume::sLODFactor				= llclamp(gSavedSettings.getF32("RenderVolumeLODFactor"), 0.01f, MAX_LOD_FACTOR);
	LLVOVolume::sDistanceFactor			= 1.f-LLVOVolume::sLODFactor * 0.1f;
	LLVolumeImplFlexible::sUpdateFactor = gSavedSettings.getF32("RenderFlexTimeFactor");
	LLVOTree::sTreeFactor				= gSavedSettings.getF32("RenderTreeLODFactor");
	LLVOAvatar::sLODFactor				= llclamp(gSavedSettings.getF32("RenderAvatarLODFactor"), 0.f, MAX_AVATAR_LOD_FACTOR);
	LLVOAvatar::sPhysicsLODFactor		= llclamp(gSavedSettings.getF32("RenderAvatarPhysicsLODFactor"), 0.f, MAX_AVATAR_LOD_FACTOR);
	LLVOAvatar::updateImpostorRendering(gSavedSettings.getU32("RenderAvatarMaxNonImpostors"));
	LLVOAvatar::sVisibleInFirstPerson	= gSavedSettings.getBOOL("FirstPersonAvatarVisible");
	// clamp auto-open time to some minimum usable value
	LLFolderView::sAutoOpenTime			= llmax(0.25f, gSavedSettings.getF32("FolderAutoOpenDelay"));
	LLSelectMgr::sRectSelectInclusive	= gSavedSettings.getBOOL("RectangleSelectInclusive");
	LLSelectMgr::sRenderHiddenSelections = gSavedSettings.getBOOL("RenderHiddenSelections");
	LLSelectMgr::sRenderLightRadius = gSavedSettings.getBOOL("RenderLightRadius");

	gAgentPilot.setNumRuns(gSavedSettings.getS32("StatsNumRuns"));
	gAgentPilot.setQuitAfterRuns(gSavedSettings.getBOOL("StatsQuitAfterRuns"));
	gAgent.setHideGroupTitle(gSavedSettings.getBOOL("RenderHideGroupTitle"));

	gDebugWindowProc = gSavedSettings.getBOOL("DebugWindowProc");
	gShowObjectUpdates = gSavedSettings.getBOOL("ShowObjectUpdates");
	LLWorldMapView::sMapScale = gSavedSettings.getF32("MapScale");
}

static void settings_modify()
{
	LLRenderTarget::sUseFBO				= gSavedSettings.getBOOL("RenderDeferred");
	LLPipeline::sRenderTransparentWater	= gSavedSettings.getBOOL("RenderTransparentWater");
	LLPipeline::sRenderBump				= gSavedSettings.getBOOL("RenderObjectBump");
	LLPipeline::sRenderDeferred		= LLPipeline::sRenderTransparentWater && LLPipeline::sRenderBump && gSavedSettings.getBOOL("RenderDeferred");
	LLVOSurfacePatch::sLODFactor		= gSavedSettings.getF32("RenderTerrainLODFactor");
	LLVOSurfacePatch::sLODFactor *= LLVOSurfacePatch::sLODFactor; //square lod factor to get exponential range of [1,4]
	gDebugGL = gSavedSettings.getBOOL("RenderDebugGL") || gDebugSession;
	gDebugPipeline = gSavedSettings.getBOOL("RenderDebugPipeline");
}

class LLFastTimerLogThread : public LLThread
{
public:
	std::string mFile;

	LLFastTimerLogThread(std::string& test_name) : LLThread("fast timer log")
 	{
		std::string file_name = test_name + std::string(".slp");
		mFile = gDirUtilp->getExpandedFilename(LL_PATH_LOGS, file_name);
	}

	void run()
	{
		llofstream os(mFile.c_str());

		while (!LLAppViewer::instance()->isQuitting())
		{
			LLTrace::BlockTimer::writeLog(os);
			os.flush();
			ms_sleep(32);
		}

		os.close();
	}
};

//virtual
bool LLAppViewer::initSLURLHandler()
{
	// does nothing unless subclassed
	return false;
}

//virtual
bool LLAppViewer::sendURLToOtherInstance(const std::string& url)
{
	// does nothing unless subclassed
	return false;
}

//----------------------------------------------------------------------------
// LLAppViewer definition

// Static members.
// The single viewer app.
LLAppViewer* LLAppViewer::sInstance = NULL;
LLTextureCache* LLAppViewer::sTextureCache = NULL;
LLImageDecodeThread* LLAppViewer::sImageDecodeThread = NULL;
LLTextureFetch* LLAppViewer::sTextureFetch = NULL;

std::string getRuntime()
{
	return llformat("%.4f", (F32)LLTimer::getElapsedSeconds().value());
}

LLAppViewer::LLAppViewer()
:	mMarkerFile(),
	mLogoutMarkerFile(),
	mReportedCrash(false),
	mNumSessions(0),
	mPurgeCache(false),
	mPurgeCacheOnExit(false),
	mPurgeUserDataOnExit(false),
	mSecondInstance(false),
	mSavedFinalSnapshot(false),
	mSavePerAccountSettings(false),		// don't save settings on logout unless login succeeded.
	mQuitRequested(false),
	mLogoutRequestSent(false),
	mLastAgentControlFlags(0),
	mLastAgentForceUpdate(0),
	mMainloopTimeout(NULL),
	mAgentRegionLastAlive(false),
	mRandomizeFramerate(LLCachedControl<bool>(gSavedSettings,"Randomize Framerate", FALSE)),
	mPeriodicSlowFrame(LLCachedControl<bool>(gSavedSettings,"Periodic Slow Frame", FALSE)),
	mFastTimerLogThread(NULL),
	mSettingsLocationList(NULL),
	mIsFirstRun(false)
{
	if(NULL != sInstance)
	{
		LL_ERRS() << "Oh no! An instance of LLAppViewer already exists! LLAppViewer is sort of like a singleton." << LL_ENDL;
	}

	// Need to do this initialization before we do anything else, since anything
	// that touches files should really go through the lldir API
	gDirUtilp->initAppDirs("AlchemyNext");
	//
	// IMPORTANT! Do NOT put anything that will write
	// into the log files during normal startup until AFTER
	// we run the "program crashed last time" error handler below.
	//
	sInstance = this;

	gLoggedInTime.stop();

	initLoggingAndGetLastDuration();

	processMarkerFiles();
	//
	// OK to write stuff to logs now, we've now crash reported if necessary
	//

	LLLoginInstance::instance().setPlatformInfo(gPlatform, LLOSInfo::instance().getOSVersionString(), LLOSInfo::instance().getOSStringSimple());

	// Under some circumstances we want to read the static_debug_info.log file
	// from the previous viewer run between this constructor call and the
	// init() call, which will overwrite the static_debug_info.log file for
	// THIS run. So setDebugFileNames() early.
#if LL_BUGSPLAT
	// MAINT-8917: don't create a dump directory just for the
	// static_debug_info.log file
	std::string logdir = gDirUtilp->getExpandedFilename(LL_PATH_LOGS, "");
#else // ! LL_BUGSPLAT
	// write Google Breakpad minidump files to a per-run dump directory to avoid multiple viewer issues.
	std::string logdir = gDirUtilp->getExpandedFilename(LL_PATH_DUMP, "");
#endif // ! LL_BUGSPLAT
	setDebugFileNames(logdir);
}

LLAppViewer::~LLAppViewer()
{
	delete mSettingsLocationList;

	destroyMainloopTimeout();

	// If we got to this destructor somehow, the app didn't hang.
	removeMarkerFiles();
}

class LLUITranslationBridge : public LLTranslationBridge
{
public:
	virtual std::string getString(const std::string &xml_desc)
	{
		return LLTrans::getString(xml_desc);
	}
};

namespace {
// With Xcode 6, _exit() is too magical to use with boost::bind(), so provide
// this little helper function.
void fast_exit(int rc)
{
	_exit(rc);
}


}


bool LLAppViewer::init()
{
	setupErrorHandling(mSecondInstance);

	//
	// Start of the application
	//

	// initialize LLWearableType translation bridge.
	// Memory will be cleaned up in ::cleanupClass()
	LLWearableType::initParamSingleton(new LLUITranslationBridge());

    // initialize the LLSettingsType translation bridge.
    LLTranslationBridge::ptr_t trans = std::make_shared<LLUITranslationBridge>();
    LLSettingsType::initParamSingleton(trans);

	// initialize SSE options
	LLVector4a::initClass();

	//initialize particle index pool
	LLVOPartGroup::initClass();

	// set skin search path to default, will be overridden later
	// this allows simple skinned file lookups to work
	gDirUtilp->setSkinFolder("default", "en");

//	initLoggingAndGetLastDuration();

	//
	// OK to write stuff to logs now, we've now crash reported if necessary
	//
	init_default_trans_args();

	if (!initConfiguration())
		return false;

	ALControlCache::initControls();

	LL_INFOS("InitInfo") << "Configuration initialized." << LL_ENDL ;

	//set the max heap size.
	initMaxHeapSize() ;
	LLCoros::instance().setStackSize(gSavedSettings.getS32("CoroutineStackSize"));


	// Although initLoggingAndGetLastDuration() is the right place to mess with
	// setFatalFunction(), we can't query gSavedSettings until after
	// initConfiguration().
	S32 rc(gSavedSettings.getS32("QAModeTermCode"));
	if (rc >= 0)
	{
		// QAModeTermCode set, terminate with that rc on LL_ERRS. Use
		// fast_exit() rather than exit() because normal cleanup depends too
		// much on successful startup!
		LLError::setFatalFunction(boost::bind(fast_exit, rc));
	}

    mAlloc.setProfilingEnabled(gSavedSettings.getBOOL("MemProfiling"));

	// Initialize the non-LLCurl libcurl library.  Should be called
	// before consumers (LLTextureFetch).
	mAppCoreHttp.init();

	LL_INFOS("InitInfo") << "LLCore::Http initialized." << LL_ENDL ;

    LLMachineID::init();

	{
		if (gSavedSettings.getBOOL("QAModeMetrics"))
		{
			app_metrics_qa_mode = true;
			app_metrics_interval = METRICS_INTERVAL_QA;
		}
		LLViewerAssetStatsFF::init();
	}

	initThreads();
	LL_INFOS("InitInfo") << "Threads initialized." << LL_ENDL ;

	// Initialize settings early so that the defaults for ignorable dialogs are
	// picked up and then correctly re-saved after launching the updater (STORM-1268).
	LLUI::settings_map_t settings_map;
	settings_map["config"] = &gSavedSettings;
	settings_map["ignores"] = &gWarningSettings;
	settings_map["floater"] = &gSavedSettings; // *TODO: New settings file
	settings_map["account"] = &gSavedPerAccountSettings;

	LLUI::initParamSingleton(settings_map,
		LLUIImageList::getInstance(),
		ui_audio_callback,
		deferred_ui_audio_callback);
	LL_INFOS("InitInfo") << "UI initialized." << LL_ENDL ;

	// NOW LLUI::getLanguage() should work. gDirUtilp must know the language
	// for this session ASAP so all the file-loading commands that follow,
	// that use findSkinnedFilenames(), will include the localized files.
	gDirUtilp->setSkinFolder(gDirUtilp->getSkinFolder(), LLUI::getLanguage());

	// Setup LLTrans after LLUI::initClass has been called.
	initStrings();

	// Setup notifications after LLUI::initClass() has been called.
	LLNotifications::instance();
	LL_INFOS("InitInfo") << "Notifications initialized." << LL_ENDL ;

    writeSystemInfo();

	//////////////////////////////////////////////////////////////////////////////
	//////////////////////////////////////////////////////////////////////////////
	//////////////////////////////////////////////////////////////////////////////
	//////////////////////////////////////////////////////////////////////////////
	// *FIX: The following code isn't grouped into functions yet.

	//
	// Various introspection concerning the libs we're using - particularly
	// the libs involved in getting to a full login screen.
	//
	LL_INFOS("InitInfo") << "J2C Engine is: " << LLImageJ2C::getEngineInfo() << LL_ENDL;
	LL_INFOS("InitInfo") << "libcurl version is: " << LLCore::LLHttp::getCURLVersion() << LL_ENDL;

	/////////////////////////////////////////////////
	// OS-specific login dialogs
	/////////////////////////////////////////////////

	//test_cached_control();

	// track number of times that app has run
	mNumSessions = gSavedSettings.getS32("NumSessions");
	mNumSessions++;
	gSavedSettings.setS32("NumSessions", mNumSessions);

	// LLKeyboard relies on LLUI to know what some accelerator keys are called.
	LLKeyboard::setStringTranslatorFunc( LLTrans::getKeyboardString );

	// Provide the text fields with callbacks for opening Urls
	LLUrlAction::setOpenURLCallback(boost::bind(&LLWeb::loadURL, _1, LLStringUtil::null, LLStringUtil::null));
	LLUrlAction::setOpenURLInternalCallback(boost::bind(&LLWeb::loadURLInternal, _1, LLStringUtil::null, LLStringUtil::null, false));
	LLUrlAction::setOpenURLExternalCallback(boost::bind(&LLWeb::loadURLExternal, _1, true, LLStringUtil::null));
	LLUrlAction::setExecuteSLURLCallback(&LLURLDispatcher::dispatchFromTextEditor);

	// Let code in llui access the viewer help floater
	LLUI::getInstance()->mHelpImpl = LLViewerHelp::getInstance();

	LL_INFOS("InitInfo") << "UI initialization is done." << LL_ENDL ;

	// Load translations for tooltips
	LLFloater::initClass();

	/////////////////////////////////////////////////

	LLToolMgr::getInstance(); // Initialize tool manager if not already instantiated

	LLViewerFloaterReg::registerFloaters();

	/////////////////////////////////////////////////
	//
	// Load settings files
	//
	//
	LLGroupMgr::parseRoleActions("role_actions.xml");

	LLAgent::parseTeleportMessages("teleport_strings.xml");

	// load MIME type -> media impl mappings
	std::string mime_types_name;
#if LL_DARWIN
	mime_types_name = "mime_types_mac.xml";
#elif LL_LINUX
	mime_types_name = "mime_types_linux.xml";
#else
	mime_types_name = "mime_types.xml";
#endif
	LLMIMETypes::parseMIMETypes( mime_types_name );

	// Copy settings to globals. *TODO: Remove or move to appropriage class initializers
	settings_to_globals();
	// Setup settings listeners
	settings_setup_listeners();
	// Modify settings based on system configuration and compile options
	settings_modify();

	// Find partition serial number (Windows) or hardware serial (Mac)
	mSerialNumber = generateSerialNumber();

	// do any necessary set-up for accepting incoming SLURLs from apps
	initSLURLHandler();

	if(false == initHardwareTest())
	{
		// Early out from user choice.
		return false;
	}
	LL_INFOS("InitInfo") << "Hardware test initialization done." << LL_ENDL ;

	// Prepare for out-of-memory situations, during which we will crash on
	// purpose and save a dump.
#if LL_WINDOWS && LL_RELEASE_FOR_DOWNLOAD && LL_USE_SMARTHEAP
	MemSetErrorHandler(first_mem_error_handler);
#endif // LL_WINDOWS && LL_RELEASE_FOR_DOWNLOAD && LL_USE_SMARTHEAP

	// *Note: this is where gViewerStats used to be created.

	//
	// Initialize the VFS, and gracefully handle initialization errors
	//

	if (!initCache())
	{
		LL_WARNS("InitInfo") << "Failed to init cache" << LL_ENDL;
		std::ostringstream msg;
		msg << LLTrans::getString("MBUnableToAccessFile");
		OSMessageBox(msg.str(),LLStringUtil::null,OSMB_OK);
		return 0;
	}
	LL_INFOS("InitInfo") << "Cache initialization is done." << LL_ENDL ;

	// Initialize the repeater service.
	LLMainLoopRepeater::instance().start();

	//
	// Initialize the window
	//
	gGLActive = TRUE;