author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 17 Dec 2009 09:24:54 +0200 | |
changeset 9 | 96e5fb8b040d |
child 6 | 0173bcd7697c |
permissions | -rw-r--r-- |
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// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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// 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 License "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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// Nokia Corporation - initial contribution. |
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// |
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// Contributors: |
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// |
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// Description: |
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// e32test\thread\smpsafe.cpp |
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// |
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// |
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#include <e32std.h> |
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#include <e32std_private.h> |
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#include <e32atomics.h> |
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IMPORT_C void DoNothingA(); |
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IMPORT_C void DoNothingB(); |
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IMPORT_C void DoNothingC(); |
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IMPORT_C void DoNothingD(); |
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IMPORT_C void DoNothingE(); |
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#ifdef MAKE_DLL |
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#ifdef PROVIDE_A |
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EXPORT_C void DoNothingA() {} |
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#endif |
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#ifdef PROVIDE_B |
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EXPORT_C void DoNothingB() { DoNothingA(); } |
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#endif |
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#ifdef PROVIDE_C |
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EXPORT_C void DoNothingC() { DoNothingD(); DoNothingE(); } |
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#endif |
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#ifdef PROVIDE_D |
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EXPORT_C void DoNothingD() { DoNothingC(); } |
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#endif |
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#ifdef PROVIDE_E |
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EXPORT_C void DoNothingE() { DoNothingC(); } |
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#endif |
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#else // !MAKE_DLL |
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TInt Affinity; |
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TInt AffinitySlave(TAny*) |
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{ |
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for (;;) |
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{ |
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__e32_atomic_store_rel32(&Affinity, 0); // we can't be locked if this runs |
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User::AfterHighRes(1); |
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} |
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} |
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TInt CheckAffinity() |
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{ |
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__e32_atomic_store_rel32(&Affinity, 1); // assume we are locked to a single cpu |
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RThread t; |
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TInt r = t.Create(_L("AffinitySlave"), AffinitySlave, KDefaultStackSize, NULL, NULL); |
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if (r != KErrNone) |
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return r; |
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TRequestStatus s; |
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t.Logon(s); |
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t.SetPriority(EPriorityLess); |
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t.Resume(); |
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TUint32 target = User::NTickCount() + 10; |
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while (User::NTickCount() < target) {} |
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r = __e32_atomic_load_acq32(&Affinity); |
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t.Kill(0); |
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User::WaitForRequest(s); |
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t.Close(); |
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return r; |
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} |
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#ifndef OMIT_MAIN |
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GLDEF_C TInt E32Main() |
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{ |
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#ifdef USE_A |
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DoNothingA(); |
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#endif |
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#ifdef USE_B |
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DoNothingB(); |
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#endif |
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return CheckAffinity(); |
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} |
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#endif // OMIT_MAIN |
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#endif |