--- /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 <comms-infras/mbufallocator.h>
+
+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 <comms-infras/mbuf.h>
+#undef __MBuf_Ignore_Inlines__
+#include <comms-infras/mbufchain.inl>
+#endif // __MBufchain_Ignore_Inlines__
+