ThreadWeaver
State.h
Go to the documentation of this file.00001 /* -*- C++ -*- 00002 00003 This file implements the state handling in ThreadWeaver. 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: State.h 32 2005-08-17 08:38:01Z mirko $ 00027 */ 00028 00029 #ifndef THREADWEAVER_STATE_H 00030 #define THREADWEAVER_STATE_H 00031 00032 00033 00034 #include <threadweaver/threadweaver_export.h> 00035 00036 namespace ThreadWeaver { 00037 00038 class Job; 00039 class Thread; 00040 class WeaverInterface; 00041 00048 enum StateId { 00051 InConstruction = 0, 00053 WorkingHard, 00056 Suspending, 00059 Suspended, 00063 ShuttingDown, 00066 Destructed, 00068 NoOfStates 00069 }; 00070 00073 class THREADWEAVER_EXPORT State 00074 { 00075 public: 00077 explicit State( WeaverInterface *weaver ); 00078 00080 virtual ~State(); 00081 00085 QString stateName() const; 00087 virtual StateId stateId() const = 0; 00089 virtual void suspend() = 0; 00091 virtual void resume() = 0; 00096 virtual Job* applyForWork ( Thread *th, Job* previous ) = 0; 00098 virtual void waitForAvailableJob ( Thread *th ) = 0; 00101 virtual void activated(); 00102 00103 protected: 00105 WeaverInterface* weaver(); 00106 00107 class Private; 00108 Private * const d; 00109 }; 00110 } 00111 00112 #endif // THREADWEAVER_STATE_H