// getstack.cpp+
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// +
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// Copyright (c) 2007 - 2010 Accenture. 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 "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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// Accenture - Initial contribution+
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//+
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+
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#include "getstack.h"+
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#include <fshell/memoryaccess.h>+
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+
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+
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CCommandBase* CCmdGetStack::NewLC()+
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	{+
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	CCmdGetStack* self = new(ELeave) CCmdGetStack();+
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	CleanupStack::PushL(self);+
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	self->BaseConstructL();+
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	return self;+
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	}+
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+
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CCmdGetStack::~CCmdGetStack()+
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	{+
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	}+
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+
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CCmdGetStack::CCmdGetStack()+
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	{+
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	}+
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+
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const TDesC& CCmdGetStack::Name() const+
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	{+
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	_LIT(KName, "getstack");+
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	return KName;+
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	}+
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+
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void CCmdGetStack::DoRunL()+
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	{+
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	RMemoryAccess memoryAccess;+
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	TInt err = RMemoryAccess::LoadDriver();+
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	if ((err == KErrNone) || (err == KErrAlreadyExists))+
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		{+
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		User::LeaveIfError(memoryAccess.Open());+
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		CleanupClosePushL(memoryAccess);+
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		}+
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	else+
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		{+
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		User::LeaveIfError(err);+
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		}+
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	RThread thread;+
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	User::LeaveIfError(thread.Open(iThreadId));+
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	CleanupClosePushL(thread);+
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+
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	RFile file;+
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	User::LeaveIfError(file.Create(FsL(), iFileName, EFileWrite | EFileStream));+
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	CleanupClosePushL(file);+
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+
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	TThreadStackInfo stackInfo;+
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	User::LeaveIfError(thread.StackInfo(stackInfo));+
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	const TInt stackSize = stackInfo.iBase - stackInfo.iLimit;+
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+
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	const TInt KBufSize = 4096; // The largest amount RMemoryAccess allows us to copy in one go.+
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	HBufC8* stackBuf = HBufC8::NewLC(KBufSize);+
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	TPtr8 stackBufPtr(stackBuf->Des());+
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+
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	TThreadMemoryAccessParamsBuf accessParamsBuf;+
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	TThreadMemoryAccessParams& accessParams = accessParamsBuf();+
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	accessParams.iId = (TInt)thread.Id().Id();+
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+
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	TInt numBytesRead = 0;+
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	while (numBytesRead < stackSize)+
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		{+
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		accessParams.iAddr = (TUint8*)stackInfo.iLimit + numBytesRead;+
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		accessParams.iSize = Min(KBufSize, stackSize - numBytesRead);+
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		stackBufPtr.Zero();+
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		User::LeaveIfError(memoryAccess.GetThreadMem(accessParamsBuf, stackBufPtr));+
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		User::LeaveIfError(file.Write(*stackBuf));+
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		numBytesRead += stackBuf->Length();+
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		}+
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+
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	CleanupStack::PopAndDestroy(4, &memoryAccess);+
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	}+
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+
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void CCmdGetStack::ArgumentsL(RCommandArgumentList& aArguments)+
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	{+
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	_LIT(KArgFileName, "file_name");+
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	aArguments.AppendFileNameL(iFileName, KArgFileName);+
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+
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	_LIT(KArgThreadId, "thread_id");+
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	aArguments.AppendUintL(iThreadId, KArgThreadId);+
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	}+
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+
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+
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#ifdef EXE_BUILD+
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EXE_BOILER_PLATE(CCmdGetStack)+
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#endif+
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+
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