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// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of the License "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// some utility classes for writing data to buffer
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//
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//
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/**
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@file
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@internalTechnology
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*/
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#ifndef __CRASH_LOG_WALKER_H_INCLUDED__
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#define __CRASH_LOG_WALKER_H_INCLUDED__
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#include <e32cmn.h>
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#include <rm_debug_api.h>
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#include <scmdatatypes.h>
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namespace Debug
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{
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/**
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* This class provides functionality to walk through a crash log in a data buffer
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* ensuring it is valid and getting the information we require back
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*/
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class TCrashLogWalker
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{
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public:
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TCrashLogWalker(TDesC8& aBuffer);
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TInt ReadLogHeader(const TInt aStartPoint);
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TInt GetCrashSize() const;
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TInt GetCrashId() const;
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const TRmdArmExcInfo& GetCrashContext() const;
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const TCrashInfoHeader& GetCrashHeader() const;
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const TCrashOffsetsHeader& GetOffsetsHeader() const;
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#ifndef __KERNEL_MODE__
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MByteStreamSerializable* GetNextDataTypeL(TInt& aPos, SCMStructId& aId, TInt& aBufferSize);
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TRawData* GetRawDataTypeL(TInt& aPos, TInt& aBufferSize, TDes8& aRawBuf, TInt aStartRawPosition = 0);
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#endif
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void UpdateBuffer(TDesC8& aBuffer);
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private:
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void HelpAssignRegisterToContext(const TRegisterValue& aRegVal);
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private:
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TDesC8& iBuffer; //buffer containing data for the log we are walking - not all of it, just the bit of interest
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TCrashInfoHeader iCrashHeader; //Stores the header of the log we are walking
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TCrashOffsetsHeader iOffsets; //Stores the offsets header of the log we are walking
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TRmdArmExcInfo iContext; //Stores the register context of the log we are walking
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TByteStreamReader iReader;
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private:
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TInt VerifyHeader();
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};
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}
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#endif // __CRASH_LOG_WALKER_H_INCLUDED__
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