ncdengine/inc/catalogsutils.inl
author Pat Downey <patd@symbian.org>
Tue, 18 May 2010 13:42:18 +0100
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Merge docml changeset, iby creation mods and sqlite_secure (bug 2548).
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/*
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* Copyright (c) 2006-2008 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:   Contains definition of catalogsutils functions 
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*
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*/
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#include "catalogsdebug.h"
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// ---------------------------------------------------------------------------
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// IntToDes16
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// 64-bit specialization is in catalogsutils.cpp
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// ---------------------------------------------------------------------------
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//   
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template<typename T>
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void IntToDes16( const T& aInt, TDes& aDes )
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    {
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    DLTRACEIN(("aDes.MaxLength() = %d", aDes.MaxLength() ));
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    DASSERT( aDes.MaxLength() >= sizeof(T)/2 );    
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    *(( T* )aDes.Ptr()) = aInt;        
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    }
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// ---------------------------------------------------------------------------
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// Des16ToInt
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// 64-bit specialization is in catalogsutils.cpp
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// ---------------------------------------------------------------------------
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//   
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template<typename T>    
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void Des16ToInt( const TDesC& aDes, T& aInt )
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    {
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    DLTRACEIN(( _L("Des: %S"), &aDes ));
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    aInt = *(( T* )aDes.Ptr());
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    DLTRACEOUT(( "Result: %d", aInt ));
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    }
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// Template class CleanupResetAndDestroy
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template <typename T>
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inline void CleanupResetAndDestroy<T>::PushL(T& aRef)
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/**
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Creates a TCleanupItem for the specified object.
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The cleanup operation is the private static function Close() of this class.
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@param aRef The object for which a TCleanupItem is to be constructed.
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*/
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	{CleanupStack::PushL(TCleanupItem(&ResetAndDestroy,&aRef));}
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template <typename T>
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void CleanupResetAndDestroy<T>::ResetAndDestroy(TAny *aPtr)
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/**
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The cleanup operation to be performed.
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@param aPtr A pointer to the object for which clean up is to be performed. 
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            The implementation calls Close() on this object.
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*/
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	{(STATIC_CAST(T*,aPtr))->ResetAndDestroy();}
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// See header file e32base.h for in-source comment.
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template <typename T>
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inline void CleanupResetAndDestroyPushL(T& aRef)
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	{CleanupResetAndDestroy<T>::PushL(aRef);}
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// Template class CleanupInternalRelease
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template <typename T>
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inline void CleanupInternalRelease<T>::PushL(T& aRef)
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/**
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Creates a TCleanupItem for the specified object.
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The cleanup operation is the private static function Close() of this class.
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@param aRef The object for which a TCleanupItem is to be constructed.
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*/
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	{CleanupStack::PushL(TCleanupItem(&InternalRelease,&aRef));}
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template <typename T>
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void CleanupInternalRelease<T>::InternalRelease(TAny *aPtr)
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/**
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The cleanup operation to be performed.
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@param aPtr A pointer to the object for which clean up is to be performed. 
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            The implementation calls Close() on this object.
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*/
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	{(STATIC_CAST(T*,aPtr))->InternalRelease();}
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template <typename T>
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inline void CleanupInternalReleasePushL(T& aRef)
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	{CleanupInternalRelease<T>::PushL(aRef);}
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template <typename T>
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void ResetAndCloseArray( RPointerArray<T>& aArray )
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    {
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    TInt count( aArray.Count() );    
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    while ( count-- )
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        {
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        aArray[count]->Close();                    
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        }
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    aArray.Reset();
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    }
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   123
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   124
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template <typename T>
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void ResetAndCloseArray( RArray<T>& aArray )
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    {
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    TInt count( aArray.Count() );    
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    while ( count-- )
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        {
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        aArray[count].Close();                    
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        }
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    aArray.Reset();
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    }
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   136
    
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   137
template <typename Casted, typename T>
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   138
void ResetAndDestroyWithCast( RPointerArray<T>& aArray )
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    {
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   140
    TInt count = aArray.Count();
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   141
    for ( TInt i = 0; i < count; i++ )
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        {
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        Casted* info =
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            static_cast<Casted*>( aArray[i] );
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        delete info;
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        info = NULL;
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        }
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   148
    aArray.Reset();        
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    }
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   151
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   152
template <typename T>
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   153
void DeleteFromArray( RPointerArray<T>& aArray, TInt aIndex )
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   154
    {
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    delete aArray[ aIndex ];
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   156
    aArray.Remove( aIndex );
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   157
    }
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   158
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   159
template <typename Casted, typename T>
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   160
void DeleteFromArray( RPointerArray<T>& aArray, TInt aIndex )
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   161
    {
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   162
    delete static_cast<Casted*>( aArray[ aIndex ] );
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   163
    aArray.Remove( aIndex );    
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   164
    }
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   165
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   166
    
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   167
template <typename EnumType>
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   168
void InternalizeEnumL( EnumType& aTarget, RReadStream& aReadStream )
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   169
    {
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   170
    aTarget = static_cast<EnumType>( aReadStream.ReadInt32L() );
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   171
    }
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   172
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   173
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   174
template <typename EnumType>
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   175
void ExternalizeEnumL( const EnumType& aSource, RWriteStream& aWriteStream )
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   176
    {
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   177
    aWriteStream.WriteInt32L( aSource );
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   178
    }
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   179
    
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   180
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   181
template <typename T>
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   182
TBool IsOneOf( 
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   183
    const T& aData, 
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   184
    const T& aComp1, 
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   185
    const T& aComp2 )
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   186
    {
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   187
    return aData == aComp1 || 
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   188
           aData == aComp2;
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   189
    }
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   190
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   191
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   192
template <typename T>
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   193
TBool IsOneOf( 
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   194
    const T& aData, 
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   195
    const T& aComp1, 
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   196
    const T& aComp2, 
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   197
    const T& aComp3 )
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   198
    {
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   199
    return IsOneOf( aData, aComp1, aComp2 ) || 
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           aData == aComp3;
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   201
    }
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diff changeset
   202
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   203
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   204
template <typename T>
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   205
TBool IsOneOf( 
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   206
    const T& aData, 
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   207
    const T& aComp1, 
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   208
    const T& aComp2, 
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parents:
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   209
    const T& aComp3, 
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   210
    const T& aComp4 )
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parents:
diff changeset
   211
    {
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parents:
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   212
    return aData == aComp1 || 
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parents:
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   213
           aData == aComp2 ||
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parents:
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   214
           aData == aComp3 ||
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parents:
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   215
           aData == aComp4;
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parents:
diff changeset
   216
    }
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parents:
diff changeset
   217
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   218
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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   219
template <typename T>
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   220
void ReleasePtr( T*& aObject )
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   221
    {
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   222
    if ( aObject ) 
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parents:
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   223
        {
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   224
        aObject->Release();
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   225
        aObject = NULL;
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parents:
diff changeset
   226
        }
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parents:
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   227
    }
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parents:
diff changeset
   228
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parents:
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   229
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   230
template <typename T>
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parents:
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   231
void ClosePtr( T*& aObject )
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    {
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    if ( aObject ) 
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        {
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        aObject->Close();
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        aObject = NULL;
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        }
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    }
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template <typename T>
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void DeletePtr( T*& aObject )
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    {
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    delete aObject;
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    aObject = NULL;
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    }
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