// getstack.cpp

// 

// Copyright (c) 2007 - 2010 Accenture. All rights reserved.

// This component and the accompanying materials are made available

// under the terms of the "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:

// Accenture - Initial contribution

//

#include "getstack.h"

#include <fshell/memoryaccess.h>

CCommandBase* CCmdGetStack::NewLC()

	{

	CCmdGetStack* self = new(ELeave) CCmdGetStack();

	CleanupStack::PushL(self);

	self->BaseConstructL();

	return self;

	}

CCmdGetStack::~CCmdGetStack()

	{

	}

CCmdGetStack::CCmdGetStack()

	{

	}

const TDesC& CCmdGetStack::Name() const

	{

	_LIT(KName, "getstack");

	return KName;

	}

void CCmdGetStack::DoRunL()

	{

	RMemoryAccess memoryAccess;

	TInt err = RMemoryAccess::LoadDriver();

	if ((err == KErrNone) || (err == KErrAlreadyExists))

		{

		User::LeaveIfError(memoryAccess.Open());

		CleanupClosePushL(memoryAccess);

		}

	else

		{

		User::LeaveIfError(err);

		}

	RThread thread;

	User::LeaveIfError(thread.Open(iThreadId));

	CleanupClosePushL(thread);

	RFile file;

	User::LeaveIfError(file.Create(FsL(), iFileName, EFileWrite | EFileStream));

	CleanupClosePushL(file);

	TThreadStackInfo stackInfo;

	User::LeaveIfError(thread.StackInfo(stackInfo));

	const TInt stackSize = stackInfo.iBase - stackInfo.iLimit;

	const TInt KBufSize = 4096; // The largest amount RMemoryAccess allows us to copy in one go.

	HBufC8* stackBuf = HBufC8::NewLC(KBufSize);

	TPtr8 stackBufPtr(stackBuf->Des());

	TThreadMemoryAccessParamsBuf accessParamsBuf;

	TThreadMemoryAccessParams& accessParams = accessParamsBuf();

	accessParams.iId = (TInt)thread.Id().Id();

	TInt numBytesRead = 0;

	while (numBytesRead < stackSize)

		{

		accessParams.iAddr = (TUint8*)stackInfo.iLimit + numBytesRead;

		accessParams.iSize = Min(KBufSize, stackSize - numBytesRead);

		stackBufPtr.Zero();

		User::LeaveIfError(memoryAccess.GetThreadMem(accessParamsBuf, stackBufPtr));

		User::LeaveIfError(file.Write(*stackBuf));

		numBytesRead += stackBuf->Length();

		}

	CleanupStack::PopAndDestroy(4, &memoryAccess);

	}

void CCmdGetStack::ArgumentsL(RCommandArgumentList& aArguments)

	{

	_LIT(KArgFileName, "file_name");

	aArguments.AppendFileNameL(iFileName, KArgFileName);

	_LIT(KArgThreadId, "thread_id");

	aArguments.AppendUintL(iThreadId, KArgThreadId);

	}

#ifdef EXE_BUILD

EXE_BOILER_PLATE(CCmdGetStack)

#endif