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_cond_signal.cpp

    15 // Part of     : pthread

    16 // Interface   : POSIX, pthread

    17 // POSIX implementation of pthread on Symbian

    18 // Version     :

    19 //

    20 

    21 

    22 

    23 #include "condvartypes.h"

    24 

    25 /*

    26 This function restarts one of the threads that are waiting on the condition 

    27 variable cond. If no threads are waiting on cond, nothing happens. If several 

    28 threads are waiting on cond, exactly one is restarted. 

    29 */

    30 EXPORT_C int pthread_cond_signal(pthread_cond_t *cond)

    31 {

    32     if(!_staticCondInit(cond))

    33     {

    34         return EINVAL;

    35     }

    36     _CondNode* node = _QueueRemoveHead(&cond->iQueue);

    37     if(node)

    38     {

    39         sem_post(&node->iSemaphore);    

    40     }

    41     return 0;

    42 }

    43 

    44 

    45 //End of File

    46