// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of the License "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:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

// e32test\thread\smpsafe.cpp

// 

//

#include <e32std.h>

#include <e32std_private.h>

#include <e32atomics.h>

IMPORT_C void DoNothingA();

IMPORT_C void DoNothingB();

IMPORT_C void DoNothingC();

IMPORT_C void DoNothingD();

IMPORT_C void DoNothingE();

#ifdef MAKE_DLL

#ifdef PROVIDE_A

EXPORT_C void DoNothingA() {}

#endif

#ifdef PROVIDE_B

EXPORT_C void DoNothingB() { DoNothingA(); }

#endif

#ifdef PROVIDE_C

EXPORT_C void DoNothingC() { DoNothingD(); DoNothingE(); }

#endif

#ifdef PROVIDE_D

EXPORT_C void DoNothingD() { DoNothingC(); }

#endif

#ifdef PROVIDE_E

EXPORT_C void DoNothingE() { DoNothingC(); }

#endif

#else // !MAKE_DLL

TInt Affinity;

TInt AffinitySlave(TAny*)

	{

	for (;;)

		{

		__e32_atomic_store_rel32(&Affinity, 0); // we can't be locked if this runs

		User::AfterHighRes(1);

		}

	}

TInt CheckAffinity()

	{

	__e32_atomic_store_rel32(&Affinity, 1); // assume we are locked to a single cpu

	RThread t;

	TInt r = t.Create(_L("AffinitySlave"), AffinitySlave, KDefaultStackSize, NULL, NULL);

	if (r != KErrNone)

		return r;

	TRequestStatus s;

	t.Logon(s);

	t.SetPriority(EPriorityLess);

	t.Resume();

	TUint32 target = User::NTickCount() + 10;

	while (User::NTickCount() < target) {}

	r = __e32_atomic_load_acq32(&Affinity);

	t.Kill(0);

	User::WaitForRequest(s);

	t.Close();

	return r;

	}

#ifndef OMIT_MAIN

GLDEF_C TInt E32Main()

	{

#ifdef USE_A

	DoNothingA();

#endif

#ifdef USE_B

	DoNothingB();

#endif

	return CheckAffinity();

	}

#endif // OMIT_MAIN

#endif