diff -r 000000000000 -r dfb7c4ff071f commsfwutils/commsbufs/version1/mbufmgr/INC/MBufChain.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/commsfwutils/commsbufs/version1/mbufmgr/INC/MBufChain.h Thu Dec 17 09:22:25 2009 +0200 @@ -0,0 +1,122 @@ +// Copyright (c) 1997-2009 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: +// + +/** + @file +*/ + +#if !defined(__MBufChain_h__) +#define __MBufChain_h__ + +#include + +class RMBuf; + +/** +MBUF CHAIN + +@internalComponent +*/ +#define MBUF_TODATA(chain, type) \ + (chain.Align(sizeof(type)), (type *)chain.First()->Ptr()) + +/** +Constant to indicate as much as possible, or whole chain +@internalComponent +*/ +const TInt KMBufAll = KMaxTInt; + +class RMBufChain +/** +@publishedPartner +@released +*/ + { + __DECLARE_CLEANUP +public: + inline RMBufChain(); + inline RMBufChain(RMBuf* aChain); + // + inline void Init(); + inline TBool IsEmpty() const; + inline RMBufChain& Next(); + inline const RMBufChain& Next() const; + inline void Link(RMBufChain& aChain); + inline void Unlink(); + inline RMBuf* First(); + inline const RMBuf* First() const; + IMPORT_C RMBuf* Last() const; + inline RMBufChain &operator =(RMBuf* aChain); + // + IMPORT_C RMBuf* Remove(); + IMPORT_C void Assign(RMBufQ& aQueue); + IMPORT_C void Assign(RMBufChain& aChain); + IMPORT_C void Append(RMBufChain& aChain); + IMPORT_C void AppendL(TInt aLen); + IMPORT_C TInt Append(TInt aLen); + IMPORT_C TInt Append(TInt aLen, RMBufAllocator &aRMBufAllocator); + + IMPORT_C void PrependL(TInt aLen); + IMPORT_C TInt Prepend(TInt aLen); + IMPORT_C TInt Prepend(TInt aLen, RMBufAllocator& aRMBufAllocator); + + IMPORT_C void Prepend(RMBuf* aBuf); + IMPORT_C void Prepend(RMBufChain& aChain); + IMPORT_C void AllocL(TInt aLen = 0); + IMPORT_C TInt Alloc(TInt aLen = 0); + IMPORT_C TInt Alloc(TInt aLen, TInt aMinMBufSize); + IMPORT_C TInt Alloc(TInt aLen, TInt aMinMBufSize, TInt aMaxMBufSize); + IMPORT_C void AllocL(TInt aLen, RMBufAllocator& aRMBufAllocator); + IMPORT_C TInt Alloc(TInt aLen, RMBufAllocator& aRMBufAllocator); + IMPORT_C TInt Alloc(TInt aLen, TInt aMinMBufSize, RMBufAllocator& aRMBufAllocator); + IMPORT_C TInt Alloc(TInt aLen, TInt aMinMBufSize, TInt aMaxMBufSize, RMBufAllocator& aRMBufAllocator); + + IMPORT_C void ReAllocL(TInt aLen); + IMPORT_C TInt ReAlloc(TInt aLen); + IMPORT_C void CreateL(const TDesC8& aDes, TInt aHdrLen=0); + IMPORT_C TInt Create(const TDesC8& aDes, TInt aHdrLen=0); + IMPORT_C void SplitL(TInt anOffset, RMBufChain& newChain); + IMPORT_C TInt Split(TInt anOffset, RMBufChain& newChain); + IMPORT_C TInt Split(TInt anOffset, RMBufChain& newChain, RMBufAllocator& aRMBufAllocator); + + IMPORT_C TInt Align(TInt aSize); + IMPORT_C void Free(); + IMPORT_C void FillZ(TInt aLen=KMBufAll); + IMPORT_C void CopyL(RMBufChain& newChain, TInt aOffset=0, TInt aLen=KMBufAll) const; + IMPORT_C TInt Copy(RMBufChain& newChain, TInt aOffset=0, TInt aLen=KMBufAll) const; + IMPORT_C void CopyIn(const TDesC8& aDes, TInt aOffset=0); + IMPORT_C void CopyOut(TDes8 &aDes, TInt aOffset=0) const; + IMPORT_C void TrimStart(TInt nBytes); + IMPORT_C void TrimEnd(TInt anOffset); + IMPORT_C TBool Goto(TInt anOffset, RMBuf* &resBuf, TInt& resOffset, TInt& resLength, RMBuf* &resPrevBuf) const; + inline TBool Goto(TInt anOffset, RMBuf* &resBuf, TInt& resOffset, TInt& resLength) const; + IMPORT_C TInt NumBufs() const; + IMPORT_C TInt Length() const; +private: + TInt Alloc(TInt aLen, const RMBufChain& aMBufChain); + TInt Alloc(TInt aLen, const RMBufChain& aMBufChain, RMBufAllocator& aRMBufAllocator); +protected: + RMBuf* iNext; + }; + +#endif + +#if !defined(__MBufChain_Ignore_Inlines__) +#define __MBuf_Ignore_Inlines__ +#include +#undef __MBuf_Ignore_Inlines__ +#include +#endif // __MBufchain_Ignore_Inlines__ +