1 // Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // Name        : pthread_mutex_destroy.cpp

    15 // Part of     : pthread

    16 // Interface   : POSIX, pthread

    17 // POSIX implementation of mutexes on Symbian

    18 // Version     :

    19 //

    20 

    21 

    22 

    23 #include "mutextypes.h"

    24 

    25 EXPORT_C int pthread_mutex_destroy (pthread_mutex_t * mutex)

    26 {

    27 

    28     if(!mutex)

    29     {

    30         return EINVAL;

    31     }

    32 

    33     if(mutex->iState == _EDestroyed)

    34     {

    35         return EINVAL;

    36     }

    37 

    38     if(mutex->iState != _EInitialized)

    39     {

    40         return 0;

    41     }

    42 

    43     _pthread_mutex_t* pMutex = mutex->iPtr;

    44 

    45     if(pMutex->iDataLock.IsHeld())

    46     {

    47         return EBUSY;

    48     }

    49 

    50     pMutex->iDataLock.Wait();

    51     if(pMutex->iSemaphoreState != SEM_FREE)

    52     {

    53         pMutex->iDataLock.Signal();

    54         return EBUSY;

    55     }

    56 

    57     mutex->iState = _EDestroyed;

    58     pMutex->iDataLock.Signal();

    59     _closeMutex(mutex);

    60     return 0;

    61 }

    62 

    63 

    64 // End of File