// kill.cpp+
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// +
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// Copyright (c) 2005 - 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 "kill.h"+
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#include <fshell/common.mmh>+
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+
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CCommandBase* CCmdKill::NewLC()+
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	{+
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	CCmdKill* self = new(ELeave) CCmdKill();+
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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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CCmdKill::~CCmdKill()+
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	{+
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	delete iPanicCategory;+
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	delete iMatch;+
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	}+
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+
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CCmdKill::CCmdKill()+
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	{+
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	}+
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+
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const TDesC& CCmdKill::Name() const+
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	{+
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	_LIT(KName, "kill");+
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	return KName;+
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	}+
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+
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void CCmdKill::DoRunL()+
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	{+
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	if (iTerminate && iPanicCategory)+
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		{+
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		PrintError(KErrArgument, _L("Options --terminate and --panic are mutually exclusive"));+
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		User::Leave(KErrArgument);+
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		}+
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+
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	if (iMatch)+
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		{+
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		FindIdAndKillL(*iMatch);+
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		}+
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	else if (iArguments.IsPresent(&iId))+
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		{+
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		KillIdL(iId);+
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		}+
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	else+
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		{+
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		LeaveIfErr(KErrArgument, _L("You must specify either an id or a match string"));+
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		}+
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	}+
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+
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template <class T>+
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void CCmdKill::DoKillByHandleL(TUint aId)+
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	{+
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	T handle;+
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	LeaveIfErr(handle.Open(aId, EOwnerThread), _L("Unable to open handle id %u"), aId);+
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	TName name(handle.Name());+
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	+
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	if (handle.ExitType() != EExitPending)+
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		{+
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		Printf(_L("%S (id=%u) has already exited"), &name, aId);+
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		handle.Close();+
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		return;+
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		}+
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+
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	if (iTerminate)+
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		{+
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		handle.Terminate(iReason);+
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		Printf(_L("Terminated %S (id=%u) with %d\r\n"), &name, aId, iReason);+
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		}+
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	else if (iPanicCategory)+
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		{+
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		handle.Panic(*iPanicCategory, iReason);+
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		Printf(_L("Panicked %S (id=%u) with %S %d\r\n"), &name, aId, iPanicCategory, iReason);+
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		}+
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	else+
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		{+
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		handle.Kill(iReason);+
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		Printf(_L("Killed %S (id=%u) with %d\r\n"), &name, aId, iReason);+
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		}+
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+
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	handle.Close();+
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	}+
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+
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void CCmdKill::FindIdAndKillL(const TDesC& aPattern)+
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	{+
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	if (iThread) DoFindIdAndKillL<RThread, TFindThread>(aPattern);+
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	else DoFindIdAndKillL<RProcess, TFindProcess>(aPattern);+
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	}+
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+
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template <class RProcessOrThread, class TFindProcessOrThread>+
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void CCmdKill::DoFindIdAndKillL(const TDesC& aPattern)+
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	{+
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	TFullName fullName;+
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	TInt numFound = 0;+
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	TFindProcessOrThread finder(aPattern);+
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	while (finder.Next(fullName) == KErrNone)+
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		{+
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		RProcessOrThread handle;+
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		TInt err = handle.Open(finder, EOwnerThread);+
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		if ((err == KErrNone) && (handle.ExitType() == EExitPending))+
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			{+
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			++numFound;+
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			TUint id = handle.Id().Id();+
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			handle.Close();+
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			if (iAll || numFound == 1)+
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				{+
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				KillIdL(id);+
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				}+
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			}+
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		else if (err)+
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			{+
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			PrintWarning(_L("Couldn't open %S (err=%d)"), &fullName);+
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			}+
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		}+
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	if (!iAll)+
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		{+
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		if (numFound == 0)+
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			{+
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			LeaveIfErr(KErrNotFound, _L("No matches for pattern \"%S\", or all matches are zombies"), &aPattern);+
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			}+
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		else if (numFound > 1)+
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			{+
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			PrintWarning(_L("%d further matches for pattern \"%S\" found, be more specific or use --all option"), numFound-1, &aPattern);+
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			}+
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		}+
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	}+
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+
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void CCmdKill::DoKillThreadL(TUint aId)+
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	{+
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#ifdef FSHELL_MEMORY_ACCESS_SUPPORT+
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	LoadMemoryAccessL();+
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+
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	RThread thread;+
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	LeaveIfErr(iMemAccess.RThreadForceOpen(thread, aId), _L("Unable to open thread"));+
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	TName name(thread.FullName());+
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	if (thread.ExitType() != EExitPending)+
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		{+
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		Printf(_L("%S (id=%u) has already exited"), &name, aId);+
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		thread.Close();+
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		return;+
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		}+
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+
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	CleanupClosePushL(thread);+
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	TExitType type = EExitKill;+
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	if (iTerminate)+
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		{+
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		type = EExitTerminate;+
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		}+
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	else if (iPanicCategory)+
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		{+
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		type = EExitPanic;+
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		}+
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	TInt err = iMemAccess.ObjectDie(EThread, aId, NULL, type, iReason, iPanicCategory ? *iPanicCategory : KNullDesC());+
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	LeaveIfErr(err, _L("Couldn't kill thread id %u"), aId);+
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+
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	if (iTerminate)+
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		{+
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		Printf(_L("Terminated %S (id=%u) with %d\r\n"), &name, aId, iReason);+
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		}+
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	else if (iPanicCategory)+
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		{+
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		Printf(_L("Panicked %S (id=%u) with %S %d\r\n"), &name, aId, iPanicCategory, iReason);+
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		}+
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	else+
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		{+
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		Printf(_L("Killed %S (id=%u) with %d\r\n"), &name, aId, iReason);+
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		}+
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	CleanupStack::PopAndDestroy(&thread);+
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+
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#else+
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	DoKillByHandleL<RThread>(aId);+
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#endif+
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	}+
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+
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void CCmdKill::OptionsL(RCommandOptionList& aOptions)+
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	{+
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	_LIT(KOptReason, "reason");+
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	_LIT(KOptThread, "thread");+
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	_LIT(KOptTerminate, "terminate");+
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	_LIT(KOptPanic, "panic");+
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	_LIT(KOptMatch, "match");+
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	_LIT(KOptAll, "all");+
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	aOptions.AppendIntL(iReason, KOptReason);+
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	aOptions.AppendBoolL(iTerminate, KOptTerminate);+
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	aOptions.AppendStringL(iPanicCategory, KOptPanic);+
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	aOptions.AppendBoolL(iThread, KOptThread);+
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	aOptions.AppendStringL(iMatch, KOptMatch);+
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	aOptions.AppendBoolL(iAll, KOptAll);+
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	}+
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+
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void CCmdKill::ArgumentsL(RCommandArgumentList& aArguments)+
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	{+
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	_LIT(KArgId, "id");+
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	aArguments.AppendUintL(iId, KArgId);+
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	}+
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+
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#ifdef EXE_BUILD+
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EXE_BOILER_PLATE(CCmdKill)+
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#endif+
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+
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void CCmdKill::KillIdL(TUint aId)+
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	{+
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	if (iThread)+
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		{+
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		DoKillThreadL(aId);+
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		}+
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	else+
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		{+
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		DoKillByHandleL<RProcess>(aId);+
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		}+
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	}+
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