commsfwutils/commsbufs/version1/mbufmgr/INC/MBufPoolManager.h
changeset 0 dfb7c4ff071f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/commsfwutils/commsbufs/version1/mbufmgr/INC/MBufPoolManager.h	Thu Dec 17 09:22:25 2009 +0200
@@ -0,0 +1,98 @@
+/**
+* Copyright (c) 2007-2009 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:
+* CMBufPoolManager decleration
+* 
+*
+*/
+
+
+
+/**
+ @file
+ @internalTechnology
+*/
+
+#ifndef MBUF_POOL_MANAGER_H
+#define MBUF_POOL_MANAGER_H
+
+#include <e32def.h>				// for std types
+#include "MBufSizeAllocator.h"	// for MMBufSizeAllocator
+#include "MBufManager.h"		// for CMBufManager
+
+class CMBufPoolManager : public CActive, public MMBufSizeAllocator
+	{
+
+public:
+	static CMBufPoolManager* NewL(TInt aMaxAllocSize, CMBufManager& aMBufManager);
+	virtual ~CMBufPoolManager();
+
+	CMBufMemoryAllocator& Memory();
+	
+	void WaitForNewPoolRequest();
+	TInt BackgroundAllocateNewPool(RMBufPoolChain& aPoolChain, TInt aNumMBufs);
+
+	void AddL(TInt aMBufSize, TInt aInitialAllocation, TInt aMinGrowth, TInt aGrowthThreshold);
+	TInt Commit();
+
+	RMBuf* Alloc(TInt aSize, TInt aMinMBufSize, TInt aMaxMBufSize, TBool aIsAllocPool);	
+	TInt AllocPool(RMBufPoolChain& aPoolChain, TInt aSize, TBool aIsSynchronous);
+	void Free(RMBuf* aMBuf, TBool aIsPreAlloc);
+	TUint LargestMBufSize() {return iLargestMBufSize;}
+	TInt NextMBufSize(TInt aSize);
+	TInt BytesAvailable();
+	TInt BytesAvailable(TInt aSize);
+	TInt BytesAllocated();
+	
+	TInt __DbgCheckBuffer(RMBuf* aBuf);
+	TUint __DbgGetBufSpace();
+	TUint __DbgGetBufSpace(TUint aMBufSize);
+	TUint __DbgGetBufTotal();
+	TUint __DbgGetBufTotal(TUint aMBufSize);
+	RMBuf* __DbgMBufChain();
+	RMBuf* __DbgMBufChain(TUint aMBufSize);
+	void __DbgSetPoolLimit(TInt aCount);
+	void __DbgSetPoolLimit(TInt aCount, TUint aMBufSize);
+	
+private:
+	CMBufPoolManager(TInt aMaxAllocSize, CMBufManager& aMBufManager);
+	void ConstructL(TInt aMaxAllocSize);
+
+	virtual void DoCancel();
+	virtual void RunL();
+	
+	void LinearSearchAlloc(RMBufQ& aList, TInt aSize, TInt aMinMBufSize, TInt aMaxMBufSize, TBool aIsAllocPool);
+
+	virtual void CreatePool(CMBufPool* &aNewpool, RMBufPoolChain& aMBufPoolChain);
+
+    RArray<RMBufPoolChain> iPoolChains;
+
+	RWorkerLock iPoolChainLock;
+	RThread iMBufMgrOwnerThread;
+	TBool iSignalled;
+	TInt iNextMBufSize;				// Next requested growth request
+
+	TInt iLargestMBufSize;
+
+	TInt iMaxAllocSize;
+	TInt iAllocSize;
+
+	TBool iCommitted;
+
+	CMBufManager& iMBufManager;		// for callback after freeing
+	CMBufMemoryAllocator* iMemoryAllocator;
+	
+	};
+
+#endif  // MBUF_POOL_MANAGER_H