commsfwutils/commsbufs/mbufmgrimpl/src/MBufMemoryManager.cpp
changeset 0 dfb7c4ff071f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/commsfwutils/commsbufs/mbufmgrimpl/src/MBufMemoryManager.cpp	Thu Dec 17 09:22:25 2009 +0200
@@ -0,0 +1,112 @@
+// 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:
+// Heap Memory Allocation for CMBufPoolManager 
+//
+//
+/**
+ * @file
+ *
+ * Heap Memory Allocation for CMBufPoolManager 
+ * 
+ * @internalComponent
+ */
+
+#include "mbufmanager.h"
+#include "MBufMemoryManager.h"
+#include "MBufPool.h"
+#include "MBuf_Log.h" // for __FLOG_*
+
+#ifdef __FLOG_ACTIVE
+_LIT8(KComponent, "MemoryManager");
+#endif
+
+CMBufMemoryManager* CMBufMemoryManager::NewL(TInt aMaxHeapSize)
+//
+// Construction - first phase
+//
+	{
+	CMBufMemoryManager* memAllocator = new(ELeave) CMBufMemoryManager;
+	CleanupStack::PushL(memAllocator);
+	memAllocator->ConstructL(aMaxHeapSize);
+	CleanupStack::Pop();
+	
+	return memAllocator;
+	}
+
+CMBufMemoryManager::CMBufMemoryManager()
+	: CBase()
+//
+// Constructor
+//
+	{
+	__FLOG_OPEN(KSubsysMBufMgr, KComponent);
+	__FLOG_1(_L8("CMBufManager %x:\tCMBufMemoryManager()"),this);
+
+	}
+
+void CMBufMemoryManager::ConstructL(TInt aMaxHeapSize)
+//
+// Construction - second phase
+//
+	{
+	iHeap = UserHeap::ChunkHeap(NULL, 0, aMaxHeapSize);
+	if (iHeap==NULL)
+		{
+		__FLOG_2(_L8("CMBufManager::CMBufMemoryManager %x:\tCreateL(0, aMaxHeapSize %d) leaving with KErrNoMemory"), this, aMaxHeapSize);
+		User::Leave(KErrNoMemory);
+		}
+	}
+
+CMBufMemoryManager::~CMBufMemoryManager()
+//
+// Destructor
+//
+	{
+	iHeap->Close();
+
+	__FLOG_CLOSE;
+	}
+
+TAny* CMBufMemoryManager::Alloc(TInt aSize)
+//
+// Allocates memory from the heap
+//
+	{
+	TAny* pMemory;
+	pMemory = iHeap->Alloc(aSize);
+
+	return pMemory;
+	}
+
+void CMBufMemoryManager::Free(TAny* aPtr)
+//
+// Returns memory to the heap
+//
+	{
+	CMBufPool* pool = (CMBufPool* ) aPtr;
+	
+	iHeap->Free(pool);
+	}
+
+TInt CMBufMemoryManager::AllocBytes()
+//
+// Number of bytes allocated from the heap
+//
+	{
+	TInt allocated;
+	iHeap->AllocSize(allocated);
+	
+	return allocated;
+	}
+