core/builtins/kill.cpp
changeset 0 7f656887cf89
child 7 184a1eb85cf2
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/builtins/kill.cpp	Wed Jun 23 15:52:26 2010 +0100
@@ -0,0 +1,219 @@
+// kill.cpp
+// 
+// Copyright (c) 2005 - 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 "kill.h"
+#include <fshell/common.mmh>
+
+CCommandBase* CCmdKill::NewLC()
+	{
+	CCmdKill* self = new(ELeave) CCmdKill();
+	CleanupStack::PushL(self);
+	self->BaseConstructL();
+	return self;
+	}
+
+CCmdKill::~CCmdKill()
+	{
+	delete iPanicCategory;
+	delete iMatch;
+	}
+
+CCmdKill::CCmdKill()
+	{
+	}
+
+const TDesC& CCmdKill::Name() const
+	{
+	_LIT(KName, "kill");
+	return KName;
+	}
+
+void CCmdKill::DoRunL()
+	{
+	if (iTerminate && iPanicCategory)
+		{
+		PrintError(KErrArgument, _L("Options --terminate and --panic are mutually exclusive"));
+		User::Leave(KErrArgument);
+		}
+
+	if (iMatch)
+		{
+		FindIdAndKillL(*iMatch);
+		}
+	else if (iArguments.IsPresent(&iId))
+		{
+		KillIdL(iId);
+		}
+	else
+		{
+		LeaveIfErr(KErrArgument, _L("You must specify either an id or a match string"));
+		}
+	}
+
+template <class T>
+void CCmdKill::DoKillByHandleL(TUint aId)
+	{
+	T handle;
+	LeaveIfErr(handle.Open(aId, EOwnerThread), _L("Unable to open handle id %u"), aId);
+	TName name(handle.Name());
+	
+	if (handle.ExitType() != EExitPending)
+		{
+		Printf(_L("%S (id=%u) has already exited"), &name, aId);
+		handle.Close();
+		return;
+		}
+
+	if (iTerminate)
+		{
+		handle.Terminate(iReason);
+		Printf(_L("Terminated %S (id=%u) with %d\r\n"), &name, aId, iReason);
+		}
+	else if (iPanicCategory)
+		{
+		handle.Panic(*iPanicCategory, iReason);
+		Printf(_L("Panicked %S (id=%u) with %S %d\r\n"), &name, aId, iPanicCategory, iReason);
+		}
+	else
+		{
+		handle.Kill(iReason);
+		Printf(_L("Killed %S (id=%u) with %d\r\n"), &name, aId, iReason);
+		}
+
+	handle.Close();
+	}
+
+void CCmdKill::FindIdAndKillL(const TDesC& aPattern)
+	{
+	if (iThread) DoFindIdAndKillL<RThread, TFindThread>(aPattern);
+	else DoFindIdAndKillL<RProcess, TFindProcess>(aPattern);
+	}
+
+template <class RProcessOrThread, class TFindProcessOrThread>
+void CCmdKill::DoFindIdAndKillL(const TDesC& aPattern)
+	{
+	TFullName fullName;
+	TInt numFound = 0;
+	TFindProcessOrThread finder(aPattern);
+	while (finder.Next(fullName) == KErrNone)
+		{
+		RProcessOrThread handle;
+		TInt err = handle.Open(finder, EOwnerThread);
+		if ((err == KErrNone) && (handle.ExitType() == EExitPending))
+			{
+			++numFound;
+			TUint id = handle.Id().Id();
+			handle.Close();
+			if (iAll || numFound == 1)
+				{
+				KillIdL(id);
+				}
+			}
+		else if (err)
+			{
+			PrintWarning(_L("Couldn't open %S (err=%d)"), &fullName);
+			}
+		}
+	if (numFound == 0)
+		{
+		LeaveIfErr(KErrNotFound, _L("No matches for pattern \"%S\", or all matches are zombies"), &aPattern);
+		}
+	else if (numFound > 1 && !iAll)
+		{
+		PrintWarning(_L("%d further matches for pattern \"%S\" found, be more specific or use --all option"), numFound-1, &aPattern);
+		}
+	}
+
+void CCmdKill::DoKillThreadL(TUint aId)
+	{
+#ifdef FSHELL_MEMORY_ACCESS_SUPPORT
+	LoadMemoryAccessL();
+
+	RThread thread;
+	LeaveIfErr(iMemAccess.RThreadForceOpen(thread, aId), _L("Unable to open thread"));
+	TName name(thread.FullName());
+	if (thread.ExitType() != EExitPending)
+		{
+		Printf(_L("%S (id=%u) has already exited"), &name, aId);
+		thread.Close();
+		return;
+		}
+
+	CleanupClosePushL(thread);
+	TExitType type = EExitKill;
+	if (iTerminate)
+		{
+		type = EExitTerminate;
+		}
+	else if (iPanicCategory)
+		{
+		type = EExitPanic;
+		}
+	TInt err = iMemAccess.ObjectDie(EThread, aId, NULL, type, iReason, iPanicCategory ? *iPanicCategory : KNullDesC());
+	LeaveIfErr(err, _L("Couldn't kill thread id %u"), aId);
+
+	if (iTerminate)
+		{
+		Printf(_L("Terminated %S (id=%u) with %d\r\n"), &name, aId, iReason);
+		}
+	else if (iPanicCategory)
+		{
+		Printf(_L("Panicked %S (id=%u) with %S %d\r\n"), &name, aId, iPanicCategory, iReason);
+		}
+	else
+		{
+		Printf(_L("Killed %S (id=%u) with %d\r\n"), &name, aId, iReason);
+		}
+	CleanupStack::PopAndDestroy(&thread);
+
+#else
+	DoKillByHandleL<RThread>(aId);
+#endif
+	}
+
+void CCmdKill::OptionsL(RCommandOptionList& aOptions)
+	{
+	_LIT(KOptReason, "reason");
+	_LIT(KOptThread, "thread");
+	_LIT(KOptTerminate, "terminate");
+	_LIT(KOptPanic, "panic");
+	_LIT(KOptMatch, "match");
+	_LIT(KOptAll, "all");
+	aOptions.AppendIntL(iReason, KOptReason);
+	aOptions.AppendBoolL(iTerminate, KOptTerminate);
+	aOptions.AppendStringL(iPanicCategory, KOptPanic);
+	aOptions.AppendBoolL(iThread, KOptThread);
+	aOptions.AppendStringL(iMatch, KOptMatch);
+	aOptions.AppendBoolL(iAll, KOptAll);
+	}
+
+void CCmdKill::ArgumentsL(RCommandArgumentList& aArguments)
+	{
+	_LIT(KArgId, "id");
+	aArguments.AppendUintL(iId, KArgId);
+	}
+
+#ifdef EXE_BUILD
+EXE_BOILER_PLATE(CCmdKill)
+#endif
+
+void CCmdKill::KillIdL(TUint aId)
+	{
+	if (iThread)
+		{
+		DoKillThreadL(aId);
+		}
+	else
+		{
+		DoKillByHandleL<RProcess>(aId);
+		}
+	}