1 // Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #include <s32crypt.h>

    17 #include "U32STD.H"

    18 

    19 class TCachePage

    20 	{

    21 public:

    22 	inline TDblQueLink& Link();

    23 	inline void Deque();

    24 	inline TBool IsQued() const;

    25 	inline void Reque(TDblQue<TCachePage>& aQue);

    26 private:

    27 	inline const TDblQueLinkBase& Link() const;

    28 public:

    29 	TDblQueLink iLink;

    30 	TCachePagePool* iOwner;

    31 	TPageRef iRef;

    32 	TPageChange iChange;

    33 	};

    34 //

    35 class StorePagePool

    36 	{

    37 public:

    38 	static TPageRef ExtendL(RStorePagePool& aPool,const TAny* aPage,TPageReclamation aReclamation,const CPBEncryptionBase* aKey=NULL);

    39 	static void WriteL(RStorePagePool& aPool,TPageRef aRef,const TAny* aPage,TPageChange aChange,const CPBEncryptionBase* aKey=NULL);

    40 	static void ReadL(RStorePagePool& aPool,TPageRef aRef,TAny* aPage,const CPBEncryptionBase* aKey=NULL);

    41 	static void DeleteL(RStorePagePool& aPool,TPageRef aRef,const CPBEncryptionBase* aKey=NULL);

    42 private:

    43 	static void PadL(RWriteStream& aStream,TInt aLength);

    44 	static void EncryptL(RWriteStream& aStream,const TAny* aPage,const CPBEncryptionBase& aKey);

    45 	static void EncryptNewL(RWriteStream& aStream,const TAny* aPage,const CPBEncryptionBase& aKey);

    46 	static void DecryptL(RReadStream& aStream,TAny* aPage,const CPBEncryptionBase& aKey);

    47 	static void SeekL(MStreamBuf* aBuf,TInt aMark,TPageRef aRef,const CPBEncryptionBase* aKey);

    48 	};

    49 //

    50 enum TPagePanic

    51 	{

    52 	EPageNotOpen,

    53 	EPageChangeInvalid,

    54 	EPageDoubleLock,

    55 	EPageNotLocked,

    56 	EPageCacheInUse,

    57 	EPageCacheFull,

    58 	EPageReclaimAvailable,

    59 	EPageCipherTextOverrun,

    60 	ECryptKeyUninitialised,

    61 	EPageBadKeyType

    62 	};

    63 

    64 GLREF_C void Panic(TPagePanic aPanic);

    65 

    66 #include "UP_STD.INL"

    67