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ThreadWeaver

SuspendedState.cpp

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00001 /* -*- C++ -*-
00002 
00003 This file implements the SuspendedState class.
00004 
00005 $ Author: Mirko Boehm $
00006 $ Copyright: (C) 2005, 2006 Mirko Boehm $
00007 $ Contact: mirko@kde.org
00008 http://www.kde.org
00009 http://www.hackerbuero.org $
00010 
00011    This library is free software; you can redistribute it and/or
00012    modify it under the terms of the GNU Library General Public
00013    License as published by the Free Software Foundation; either
00014    version 2 of the License, or (at your option) any later version.
00015 
00016    This library is distributed in the hope that it will be useful,
00017    but WITHOUT ANY WARRANTY; without even the implied warranty of
00018    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00019    Library General Public License for more details.
00020 
00021    You should have received a copy of the GNU Library General Public License
00022    along with this library; see the file COPYING.LIB.  If not, write to
00023    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00024    Boston, MA 02110-1301, USA.
00025 
00026 $Id: SuspendedState.cpp 30 2005-08-16 16:16:04Z mirko $
00027 */
00028 
00029 #include "SuspendedState.h"
00030 
00031 #include "ThreadWeaver.h"
00032 #include "WeaverImpl.h"
00033 
00034 using namespace ThreadWeaver;
00035 
00036 void SuspendedState::suspend()
00037 {
00038     // this request is not handled in Suspended state
00039 }
00040 
00041 void SuspendedState::resume()
00042 {
00043     weaver()->setState( WorkingHard );
00044 }
00045 
00046 Job* SuspendedState::applyForWork ( Thread *th,  Job* previous )
00047 {   // suspend all threads in case they wake up:
00048     weaver()->waitForAvailableJob( th );
00049     return weaver()->applyForWork ( th,  previous );
00050 }
00051 
00052 void SuspendedState::waitForAvailableJob ( Thread *th )
00053 {
00054     weaver()->blockThreadUntilJobsAreBeingAssigned ( th );
00055 }
00056 
00057 StateId SuspendedState::stateId() const
00058 {
00059     return Suspended;
00060 }

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