--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/commsfwutils/commsbufs/version1/mbufmgr/src/MB_BUF.CPP	Thu Dec 17 09:22:25 2009 +0200
@@ -0,0 +1,180 @@
+// 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:
+// Buffer Manager for Protocols(Buffer)
+// 
+//
+
+/**
+ @file
+ @internalComponent
+*/
+
+#include <es_mbman.h>
+
+#include "MBufPoolChain.h"
+#include "MBufPoolManager.h"
+
+//
+// MBUF
+//
+
+
+TAny *RMBuf::operator new(TUint /*aSize*/, RMBuf* aPtr)
+/**
+Provide MBuf with a new in-place operator
+*/
+	{
+	__ASSERT_DEBUG(aPtr, CMBufManager::Panic(EMBuf_BadNewInPlace));
+	return aPtr;
+	}
+
+
+void RMBuf::operator delete(TAny* /*aPtr*/)
+/**
+In place delete
+*/
+	{
+	}
+
+
+void RMBuf::operator delete(TAny* /*aPtr*/, RMBuf*)
+/**
+extra delete operator for exception unwinding in Code Warrior
+*/
+	{
+	}
+
+
+RMBuf::RMBuf(TUint8* aBuffer, RMBufPoolChain* aPoolChain, TInt aSize)
+	: iBuffer(aBuffer), iSize(aSize), iPoolChain(aPoolChain)
+/**
+MBuf constructor initialiser
+@param aBuffer A buffer
+@param aPoolChain The poolchain that contains the MBuf
+@param aSize Size
+*/
+	{
+	Init(EMBufFree);
+	}
+
+
+EXPORT_C void RMBuf::Init(TMBufType aType)
+/**
+Initialises MBuf's members
+@param aType A MBuf type
+*/
+	{
+	iType = aType;
+	iLength = iSize;
+	iOffset = 0;
+	iNext = NULL;
+	iRefCount = 0;
+	iNextPkt.Init();
+	}
+
+
+// allocates memory for a RMBuf object, return a pointer to the RMBuf object memory
+// - the size of the mbuf to be allocatd will depend on the available pool chains, eg. 128, 1514, 9000, etc
+EXPORT_C RMBuf* RMBuf::AllocL()
+ 	{
+	return CMBufManager::Context()->AllocL(KMBufSmallSize);		// default size is specified within CMufManager implementation, guaranteed to be only 1 mbuf
+	}
+EXPORT_C RMBuf* RMBuf::AllocL(TUint aSize)
+ 	{
+	RMBuf* mBuf = CMBufManager::Context()->Alloc(aSize, aSize);	// min. size constraint to ensure only 1 mbuf is allocated
+	if (!mBuf)
+		{
+		User::Leave(KErrNoMBufs);
+		}
+	return mBuf;
+	}
+EXPORT_C RMBuf* RMBuf::Alloc()
+ 	{
+	return CMBufManager::Context()->Alloc(KMBufSmallSize);		// default size is specified within CMufManager implementation, guaranteed to be only 1 mbuf
+	}
+EXPORT_C RMBuf* RMBuf::Alloc(TUint aSize)
+ 	{
+	return CMBufManager::Context()->Alloc(aSize, aSize);	// min. size constraint to ensure only 1 mbuf is allocated
+	}
+
+// overloading for TLS
+EXPORT_C RMBuf* RMBuf::AllocL(RMBufAllocator& aRMBufAllocator)
+ 	{
+	return aRMBufAllocator.MBufManager().AllocL(KMBufSmallSize);		// default size is specified within CMufManager implementation, guaranteed to be only 1 mbuf
+	}
+EXPORT_C RMBuf* RMBuf::AllocL(TUint aSize, RMBufAllocator& aRMBufAllocator)
+ 	{
+	RMBuf *mBuf = aRMBufAllocator.MBufManager().Alloc(aSize, aSize);	// min. size constraint to ensure only 1 mbuf is allocated
+	if (!mBuf)
+		{
+		User::Leave(KErrNoMBufs);
+		}
+	return mBuf;
+	}
+EXPORT_C RMBuf* RMBuf::Alloc(RMBufAllocator& aRMBufAllocator)
+	{
+	return aRMBufAllocator.MBufManager().Alloc(KMBufSmallSize);		// default size is specified within CMufManager implementation, guaranteed to be only 1 mbuf
+	}
+EXPORT_C RMBuf* RMBuf::Alloc(TUint aSize, RMBufAllocator& aRMBufAllocator)
+	{
+	return aRMBufAllocator.MBufManager().Alloc(aSize, aSize);	// min. size constraint to ensure only 1 mbuf is allocated
+	}
+
+EXPORT_C void RMBuf::Free()
+/**
+Frees the allocated memory for the RMBuf object
+*/
+	{
+
+	// There is currently no support for reference counting, this check is to
+	// ensure that someone hasn't mistakenly tried to use the iRefCount member.
+	// The iRefCount member was introduced to allow reference counting to be
+	// implemented at a later without another BC break having to be raised.
+	__ASSERT_DEBUG(iRefCount==0, CMBufManager::Panic(EMBuf_InvalidRefCount));
+	__ASSERT_DEBUG(iPoolChain != NULL, CMBufManager::Panic(EMBuf_NoPoolChain));
+	((RMBufPoolChain*)iPoolChain)->MBufPoolManager().Free(this, EFalse);
+	}
+
+
+EXPORT_C RMBuf* RMBuf::Last()
+/**
+Last MBuf in a chain.
+Not really supposed to be in RMBuf,
+but putting it here allows the code to
+be shared by RMBufChain and RMBufQ
+@return A pointer to the last MBuf in the chain
+*/
+{
+	RMBuf* p = NULL;
+	TMBufIter m(this);
+
+	while (m.More())
+		{
+		p = m;
+		m++;
+		}
+	return p;
+	}
+
+EXPORT_C void RMBuf::__DbgPut(TUint8 aVal, TInt aOffset)
+{
+	__ASSERT_ALWAYS(aOffset<(iOffset+iLength), CMBufManager::Panic(EMBuf_BadOffset));
+	*(Ptr()+aOffset) = aVal;
+}
+
+EXPORT_C TUint8 RMBuf::__DbgGet(TInt aOffset) const
+{
+	__ASSERT_ALWAYS(aOffset<(iOffset+iLength), CMBufManager::Panic(EMBuf_BadOffset));
+	return *(Ptr()+aOffset);
+}