mpxmusicplayer/commonui/src/mpxtlshelper.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 17 Dec 2009 08:45:05 +0200
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/*
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* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  Implementation of TLS Helper
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*
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*/
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// INCLUDE FILES
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#include "mpxtlshelper.h"
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// ======== MEMBER FUNCTIONS ========
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// ---------------------------------------------------------------------------
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// Initialize TLS for storing application information.
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// ---------------------------------------------------------------------------
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//
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EXPORT_C void MPXTlsHelper::InitializeL()
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    {
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    TMPXTlsStruct* tls = reinterpret_cast<TMPXTlsStruct*>( Dll::Tls() );
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    if ( !tls )
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        {
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        TMPXTlsStruct* tls = new ( ELeave ) TMPXTlsStruct;
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        tls->iHostUid = KNullUid;
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        tls->iNeedSave = EFalse;
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        tls->iAllowMove = EFalse;
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        tls->iLaunchMode = EMPXLaunchModeStopped;
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        tls->useCount = 1;
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        Dll::SetTls( reinterpret_cast<TAny*>( tls ) );
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        }
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    else
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        {
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        tls->useCount++;
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        }
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    }
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// ---------------------------------------------------------------------------
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// Uninitialize TLS data storage. Must be called
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// before exiting application to unload resources.
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// ---------------------------------------------------------------------------
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//
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EXPORT_C void MPXTlsHelper::Uninitialize()
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    {
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    TMPXTlsStruct* tls =  reinterpret_cast<TMPXTlsStruct*>( Dll::Tls() );
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    if ( tls && !( --tls->useCount ) )
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        {
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        delete tls;
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        tls = NULL;
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        Dll::SetTls( NULL );
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        }
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    }
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// ---------------------------------------------------------------------------
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// Store host application UID to TLS.
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// ---------------------------------------------------------------------------
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//
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EXPORT_C void MPXTlsHelper::SetHostUidL(
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    const TUid& aUid )
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    {
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    TMPXTlsStruct* tls =  reinterpret_cast<TMPXTlsStruct*>( Dll::Tls() );
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    if ( tls )
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        {
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        tls->iHostUid = aUid;
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        }
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    else
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        {
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        User::Leave( KErrNotReady );
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        }
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    }
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// ---------------------------------------------------------------------------
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// Store file path of saved clip.
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// ---------------------------------------------------------------------------
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//
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EXPORT_C void MPXTlsHelper::SetFilePath(
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    const TDesC& aFilePath )
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    {
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    TMPXTlsStruct* tls =  reinterpret_cast<TMPXTlsStruct*>( Dll::Tls() );
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    if ( tls )
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        {
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        tls->iFilePath = (TFileName) aFilePath;
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        }
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    }
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// ---------------------------------------------------------------------------
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// Store file path of saved clip.
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// ---------------------------------------------------------------------------
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//
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EXPORT_C TFileName MPXTlsHelper::FilePath()
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    {
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    TMPXTlsStruct* tls =  reinterpret_cast<TMPXTlsStruct*>( Dll::Tls() );
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    if ( tls )
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        {
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        return (TFileName)tls->iFilePath;
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        }
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    return TFileName(NULL);
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    }
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// ---------------------------------------------------------------------------
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// Fetch host application UID from TLS.
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// ---------------------------------------------------------------------------
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//
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EXPORT_C TUid MPXTlsHelper::HostUid()
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    {
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    TUid hostUid( KNullUid );
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    TMPXTlsStruct* tls =  reinterpret_cast<TMPXTlsStruct*>( Dll::Tls() );
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    if ( tls )
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   123
        {
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        hostUid = tls->iHostUid;
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   125
        }
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   126
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    return hostUid;
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    }
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// ---------------------------------------------------------------------------
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// Set 'need save' flag.
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// ---------------------------------------------------------------------------
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//
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EXPORT_C void MPXTlsHelper::SetNeedSave( TBool aNeedSave )
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    {
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    TMPXTlsStruct* tls =  reinterpret_cast<TMPXTlsStruct*>( Dll::Tls() );
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    if ( tls )
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   138
        {
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        tls->iNeedSave = aNeedSave;
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   140
        }
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   141
    }
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// ---------------------------------------------------------------------------
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// Get 'need save' flag.
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// ---------------------------------------------------------------------------
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//
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EXPORT_C TBool MPXTlsHelper::NeedSave()
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    {
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    TBool needSave( EFalse );
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    TMPXTlsStruct* tls =  reinterpret_cast<TMPXTlsStruct*>( Dll::Tls() );
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    if ( tls )
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   153
        {
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        needSave = tls->iNeedSave;
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   155
        }
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    return needSave;
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   158
    }
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// ---------------------------------------------------------------------------
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// Sets Allow Move flag.
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// ---------------------------------------------------------------------------
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//
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EXPORT_C void MPXTlsHelper::SetAllowMove( TBool aAllowMove )
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   165
    {
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   166
    TMPXTlsStruct* tls =  reinterpret_cast<TMPXTlsStruct*>( Dll::Tls() );
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   167
    if ( tls )
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   168
        {
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        tls->iAllowMove = aAllowMove;
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   170
        }
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   171
    }
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   172
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// ---------------------------------------------------------------------------
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// Gets Allow Move flag.
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// ---------------------------------------------------------------------------
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//
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EXPORT_C TBool MPXTlsHelper::AllowMove()
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    {
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    TBool allowMove( EFalse );
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    TMPXTlsStruct* tls =  reinterpret_cast<TMPXTlsStruct*>( Dll::Tls() );
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   182
    if ( tls )
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parents:
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   183
        {
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        allowMove = tls->iAllowMove;
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   185
        }
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   186
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    return allowMove;
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   188
    }
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   189
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// ---------------------------------------------------------------------------
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// Set launch mode.
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// ---------------------------------------------------------------------------
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   193
//
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   194
EXPORT_C void MPXTlsHelper::SetLaunchModeL( TMPXLaunchMode aMode )
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   195
    {
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   196
    TMPXTlsStruct* tls =  reinterpret_cast<TMPXTlsStruct*>( Dll::Tls() );
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   197
    if ( tls )
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parents:
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   198
        {
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   199
        tls->iLaunchMode = aMode;
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   200
        }
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   201
    else
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   202
        {
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   203
        User::Leave( KErrNotReady );
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parents:
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   204
        }
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parents:
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   205
    }
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parents:
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   206
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   207
// ---------------------------------------------------------------------------
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   208
// Get launch mode.
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   209
// ---------------------------------------------------------------------------
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   210
//
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   211
EXPORT_C TMPXLaunchMode MPXTlsHelper::LaunchMode()
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   212
    {
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    TMPXLaunchMode mode( EMPXLaunchModeUnknown );
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parents:
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   214
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    TMPXTlsStruct* tls =  reinterpret_cast<TMPXTlsStruct*>( Dll::Tls() );
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parents:
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   216
    if ( tls )
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parents:
diff changeset
   217
        {
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   218
        mode = tls->iLaunchMode;
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parents:
diff changeset
   219
        }
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parents:
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   220
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    return mode;
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parents:
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   222
    }
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parents:
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   223
ff3acec5bc43 Revision: 200949
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parents:
diff changeset
   224
//  End of File