WThreadedRunner.cpp

00001 //---------------------------------------------------------------------------
00002 //
00003 // Project: OpenWalnut ( http://www.openwalnut.org )
00004 //
00005 // Copyright 2009 OpenWalnut Community, BSV@Uni-Leipzig and CNCF@MPI-CBS
00006 // For more information see http://www.openwalnut.org/copying
00007 //
00008 // This file is part of OpenWalnut.
00009 //
00010 // OpenWalnut is free software: you can redistribute it and/or modify
00011 // it under the terms of the GNU Lesser General Public License as published by
00012 // the Free Software Foundation, either version 3 of the License, or
00013 // (at your option) any later version.
00014 //
00015 // OpenWalnut is distributed in the hope that it will be useful,
00016 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00018 // GNU Lesser General Public License for more details.
00019 //
00020 // You should have received a copy of the GNU Lesser General Public License
00021 // along with OpenWalnut. If not, see <http://www.gnu.org/licenses/>.
00022 //
00023 //---------------------------------------------------------------------------
00024 
00025 #include <iostream>
00026 
00027 #include "WConditionOneShot.h"
00028 #include "WCondition.h"
00029 #include "WLogger.h"
00030 
00031 #include "WThreadedRunner.h"
00032 
00033 WThreadedRunner::WThreadedRunner():
00034     m_shutdownFlag( new WConditionOneShot(), false )
00035 {
00036     // initialize members
00037 }
00038 
00039 WThreadedRunner::~WThreadedRunner()
00040 {
00041     // cleanup
00042     // XXX is this working if thread already has finished?
00043     // wait( true ); <-- no
00044 }
00045 
00046 void WThreadedRunner::run()
00047 {
00048     run( boost::bind( &WThreadedRunner::threadMain, this ) );
00049 }
00050 
00051 void WThreadedRunner::run( THREADFUNCTION f )
00052 {
00053     m_thread = boost::thread( f );
00054 }
00055 
00056 void WThreadedRunner::wait( bool requestFinish )
00057 {
00058     if( requestFinish )
00059     {
00060         requestStop();
00061     }
00062     m_thread.join();
00063 }
00064 
00065 void WThreadedRunner::requestStop()
00066 {
00067     // first notify
00068     notifyStop();
00069 
00070     // then signal it
00071     m_shutdownFlag( true );
00072 }
00073 
00074 void WThreadedRunner::waitForStop()
00075 {
00076     m_shutdownFlag.wait();
00077 }
00078 
00079 void WThreadedRunner::threadMain()
00080 {
00081     WLogger::getLogger()->addLogMessage( "This should never be called. Implement a thread function here.", "WThreadedRunner", LL_WARNING );
00082 }
00083 
00084 void WThreadedRunner::notifyStop()
00085 {
00086 }
00087 
00088 void WThreadedRunner::yield() const
00089 {
00090     m_thread.yield();
00091 }
00092 
00093 void WThreadedRunner::sleep( const int32_t t ) const
00094 {
00095     boost::this_thread::sleep( boost::posix_time::seconds( t ) );
00096 }
00097 
00098 void WThreadedRunner::msleep( const int32_t t ) const
00099 {
00100     boost::this_thread::sleep( boost::posix_time::microseconds( t ) );
00101 }
00102 
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