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

// All rights reserved.

// This component and the accompanying materials are made available

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

// which accompanies this distribution, and is available

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

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

//

#include "U32STD.H"

#include "U32FRAME.H"

const TInt KShiftCardinality8=1;

const TInt KShiftCardinality16=2;

const TInt KShiftCardinality32=3;

//

const TInt KDefaultIoBufSize=0xc00;

const TInt KFilterIoBufSize=0x100;

//

NONSHARABLE_CLASS(TNullInput) : public MStreamInput

	{

public:

	TInt PushL(const TAny* aPtr,TInt aMaxLength);

	TStreamTransfer ReadFromL(MStreamBuf& aSource,TStreamTransfer aTransfer);

	};

//

NONSHARABLE_CLASS(TSourceOutput) : public MStreamOutput

	{

public:

	inline TSourceOutput(MStreamBuf* aSource);

//

	TInt PullL(TAny* aPtr,TInt aMaxLength);

	TStreamTransfer WriteToL(MStreamBuf& aSink,TStreamTransfer aTransfer);

private:

	MStreamBuf* iSrc;

	};

//

NONSHARABLE_CLASS(TFilterInput) : public MStreamInput

	{

public:

	inline TFilterInput(TStreamFilter& aFilter,TAny* aPtr,TInt aMaxLength);

	inline TBool Done() const;

	inline TBool Eof() const;

	inline TInt Left() const;

//

	TInt PushL(const TAny* aPtr,TInt aMaxLength);

	TStreamTransfer ReadFromL(MStreamBuf& aSource,TStreamTransfer aTransfer);

private:

	TStreamFilter* iFltr;

	TUint8* iPtr;

	TInt iLeft;

	};

NONSHARABLE_CLASS(TFilterOutput) : public MStreamOutput

	{

public:

	inline TFilterOutput(TStreamFilter& aFilter,const TAny* aPtr,TInt aLength);

	inline TBool Done() const;

//

	TInt PullL(TAny* aPtr,TInt aMaxLength);

	TStreamTransfer WriteToL(MStreamBuf& aSink,TStreamTransfer aTransfer);

private:

	TStreamFilter* iFltr;

	const TUint8* iFrom;

	const TUint8* iEnd;

	};

//

NONSHARABLE_CLASS(TDelimitedInput8) : public MStreamInput

	{

public:

	TDelimitedInput8(TUint8* aPtr,TInt aLength,TChar aDelim);

	inline TUint8* Ptr() const;

	inline TInt Done() const;

//

	TInt PushL(const TAny* aPtr,TInt aMaxLength);

	TStreamTransfer ReadFromL(MStreamBuf& aSource,TStreamTransfer aTransfer);

private:

	TUint8* iPtr;

	TInt iLeft;

	TChar iDelim;

	};

NONSHARABLE_CLASS(TDelimitedInput16) : public MStreamInput

	{

public:

	TDelimitedInput16(TUint16* aPtr,TInt aLength,TChar aDelim);

	inline TUint16* Ptr() const;

	inline TInt Done() const;

//

	TInt PushL(const TAny* aPtr,TInt aMaxLength);

	TStreamTransfer ReadFromL(MStreamBuf& aSource,TStreamTransfer aTransfer);

private:

	TUint16* iPtr;

	TInt iLeft;

	TChar iDelim;

	};

//

enum TStreamPanic

	{

	EStreamNotOpen,

	EStreamReadLengthNegative,

	EStreamReadBeyondEnd,

	EStreamReadNoTransfer,

	EStreamReadInBreach,

	EStreamWriteLengthNegative,

	EStreamWriteBeyondEnd,

	EStreamWriteNoTransfer,

	EStreamWriteInBreach,

	EStreamDoesNotUnderstand,

	EStreamCannotRead,

	EStreamCannotWrite,

	EStreamCannotSeek,

	EStreamTransferNegative,

	EStreamPosInvalid,

	EStreamMarkInvalid,

	EStreamLocationInvalid,

	EStreamAreaInvalid,

	EStreamModeInvalid,

	EStreamUnderflowInBreach,

	EStreamOverflowInBreach,

	EStreamFilterInBreach,

	EStreamPushLengthNegative,

	EStreamPushNoTransfer,

	EStreamPushInBreach,

	EStreamPullLengthNegative,

	EStreamPullNoTransfer,

	EStreamPullInBreach,

	EStreamCardinalityOutOfRange,

	EStreamOffsetNegative,

	EStreamExtentNegative,

	EStreamTypeInvalid,

	EStreamCommitted

	};

GLREF_C void Panic(TStreamPanic aPanic);

#include "US_STD.INL"