author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 02 Feb 2010 02:01:42 +0200 | |
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// Copyright (c) 2005-2009 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 "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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// Name : pthread_mutex_init.cpp |
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// Part of : pthread |
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// Interface : POSIX, pthread |
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// POSIX implementation of mutexes on Symbian |
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// Version : |
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// |
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#include "mutextypes.h" |
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extern int _mutexCreate (pthread_mutex_t * mutex, |
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const pthread_mutexattr_t* attr); |
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EXPORT_C int pthread_mutex_init (pthread_mutex_t * mutex, |
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const pthread_mutexattr_t* attr) |
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{ |
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pthread_mutexattr_t defaultattributes = |
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PTHREAD_MUTEX_ATTRIBUTE_DEFAULT_INITIALIZER; |
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if(!attr) |
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{ |
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attr = &defaultattributes; |
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} |
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//coverity[var_compare_op] |
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if( !mutex || !VALID_MUTEX_ATTR(attr) || mutex->iState == _EInitialized) |
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{ |
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return EINVAL; |
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} |
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//recursively call pthread_mutex_init under _InitOnce harness to |
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//diambiguate race to create this mutex if this is a statically |
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//intialiazied mutex ignore passed pthread_mutexattr_t attribute |
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//in this case |
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//coverity[var_deref_op] |
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if( (mutex->iState == _ENeedsNormalInit || |
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mutex->iState == _ENeedsRecursiveInit || |
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mutex->iState == _ENeedsErrorCheckInit ) && |
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mutex->iReentry != 0xBABA) |
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{ |
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if( _InitOnce(mutex) ) |
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{ |
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return 0; |
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} |
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} |
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return _mutexCreate(mutex,attr); |
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} |
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// End of File |