Symaptic: os/security/securityanddataprivacytools/securitytools/certapp/store--/s32buf.h@260cb5ec6c19

     1 #ifndef __S32BUF_H__

     2 #define __S32BUF_H__/*

     3 * Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

     4 * All rights reserved.

     5 * This component and the accompanying materials are made available

     6 * under the terms of the License "Eclipse Public License v1.0"

     7 * which accompanies this distribution, and is available

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

9 *

    10 * Initial Contributors:

    11 * Nokia Corporation - initial contribution.

    12 *

    13 * Contributors:

    14 *

    15 * Description:

    16 *

    17 */

    20 #include <e32base.h>

    21 #include <fstream>

    23 /**

    24  * @file

    25  * @internalComponent

    26  */

    28 enum TStreamLocation

    29 	/** The seek position is calculated relative to the beginning of the

    30 	stream.*/

    31 	{EStreamBeginning,

    32 	/** The seek position is calculated relative to the end of the stream.*/

    33 	EStreamMark,

    34 	/** The seek position is calculated relative to the existing read or

    35 	write mark in the stream. */

    36 	EStreamEnd};

    38 typedef std::streampos TStreamPos;

    40 class MStreamBuf

    41 	{

    42 public:

    43 	// Symbian definition does not have a virtual destructor and relies on DoRelease virtual...

    44 	// We define one to avoid compiler warnings

    45 	virtual ~MStreamBuf() {}

    47 	enum TRead {ERead=0x01};

    48 	enum TWrite {EWrite=0x02};

    49 	typedef TInt TMark;

    51 	TInt ReadL(TAny *aPtr,TInt aMaxLength);

    52 	void WriteL(const TUint8* aPtr,TInt aLength);

    54 	void SeekL(TMark aMark,TStreamPos aPos);

    55 	TStreamPos SeekL(TMark aMark,TStreamLocation aLocation,TInt anOffset=0);

    56 	TStreamPos SeekL(TRead,TStreamLocation aLocation,TInt anOffset=0);

    57 	TStreamPos SeekL(TWrite,TStreamLocation aLocation,TInt anOffset=0);

    58 	TStreamPos SeekL(TRead,TInt anOffset);

    59 	TStreamPos SeekL(TWrite,TInt anOffset);

    61 	TStreamPos TellL(TRead) const;

    62 	TStreamPos TellL(TWrite) const;

    64 	void Close();

    65 	void Release();

    66 	void SynchL();

    68 private:

    69 	virtual TInt DoReadL(TAny *aPtr,TInt aMaxLength) = 0;

    70 	virtual void DoWriteL(const TUint8* aPtr,TInt aLength) = 0;

    71 	virtual IMPORT_C TStreamPos DoSeekL(TMark aMark,TStreamLocation aLocation,TInt anOffset);

    73 	virtual void DoRelease();

    74 	};

    75 #endif

author	sl
	Tue, 10 Jun 2014 14:32:02 +0200
changeset 1	260cb5ec6c19
permissions	-rw-r--r--