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00001 /**************************************************************************** 00002 ** $Id: qt/qthread.h 3.3.8 edited Jan 11 14:38 $ 00003 ** 00004 ** Definition of QThread class 00005 ** 00006 ** Created : 931107 00007 ** 00008 ** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved. 00009 ** 00010 ** This file is part of the kernel module of the Qt GUI Toolkit. 00011 ** 00012 ** This file may be distributed under the terms of the Q Public License 00013 ** as defined by Trolltech ASA of Norway and appearing in the file 00014 ** LICENSE.QPL included in the packaging of this file. 00015 ** 00016 ** This file may be distributed and/or modified under the terms of the 00017 ** GNU General Public License version 2 as published by the Free Software 00018 ** Foundation and appearing in the file LICENSE.GPL included in the 00019 ** packaging of this file. 00020 ** 00021 ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition 00022 ** licenses may use this file in accordance with the Qt Commercial License 00023 ** Agreement provided with the Software. 00024 ** 00025 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE 00026 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 00027 ** 00028 ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for 00029 ** information about Qt Commercial License Agreements. 00030 ** See http://www.trolltech.com/qpl/ for QPL licensing information. 00031 ** See http://www.trolltech.com/gpl/ for GPL licensing information. 00032 ** 00033 ** Contact info@trolltech.com if any conditions of this licensing are 00034 ** not clear to you. 00035 ** 00036 **********************************************************************/ 00037 00038 #ifndef QTHREAD_H 00039 #define QTHREAD_H 00040 00041 #if defined(QT_THREAD_SUPPORT) 00042 00043 #ifndef QT_H 00044 #include "qwindowdefs.h" 00045 #ifndef QT_NO_COMPAT 00046 #include "qmutex.h" 00047 #include "qsemaphore.h" 00048 #include "qwaitcondition.h" 00049 #endif // QT_NO_COMPAT 00050 #endif // QT_H 00051 00052 #include <limits.h> 00053 00054 class QThreadInstance; 00055 00056 class Q_EXPORT QThread : public Qt 00057 { 00058 public: 00059 static Qt::HANDLE currentThread(); 00060 00061 #ifndef QT_NO_COMPAT 00062 static void postEvent( QObject *,QEvent * ); 00063 #endif 00064 00065 static void initialize(); 00066 static void cleanup(); 00067 00068 static void exit(); 00069 00070 #ifdef Q_QDOC 00071 QThread( unsigned int stackSize = 0 ); 00072 #else 00073 QThread( unsigned int stackSize ); 00074 QThread(); 00075 #endif 00076 00077 virtual ~QThread(); 00078 00079 // default argument causes thread to block indefinately 00080 bool wait( unsigned long time = ULONG_MAX ); 00081 00082 enum Priority { 00083 IdlePriority, 00084 00085 LowestPriority, 00086 LowPriority, 00087 NormalPriority, 00088 HighPriority, 00089 HighestPriority, 00090 00091 TimeCriticalPriority, 00092 00093 InheritPriority 00094 }; 00095 00096 #ifdef Q_QDOC 00097 void start( Priority = InheritPriority ); 00098 #else 00099 void start( Priority ); 00100 void start(); 00101 #endif 00102 00103 void terminate(); 00104 00105 bool finished() const; 00106 bool running() const; 00107 00108 protected: 00109 virtual void run() = 0; 00110 00111 static void sleep( unsigned long ); 00112 static void msleep( unsigned long ); 00113 static void usleep( unsigned long ); 00114 00115 private: 00116 QThreadInstance * d; 00117 friend class QThreadInstance; 00118 00119 #if defined(Q_DISABLE_COPY) 00120 QThread( const QThread & ); 00121 QThread &operator=( const QThread & ); 00122 #endif // Q_DISABLE_COPY 00123 }; 00124 00125 #endif // QT_THREAD_SUPPORT 00126 00127 #endif // QTHREAD_H