1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtCore module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #ifndef QEVENTLOOP_H 41 #define QEVENTLOOP_H 42 43 #include <QtCore/qobject.h> 44 45 QT_BEGIN_NAMESPACE 46 47 48 class QEventLoopPrivate; 49 50 class Q_CORE_EXPORT QEventLoop : public QObject 51 { 52 Q_OBJECT 53 Q_DECLARE_PRIVATE(QEventLoop) 54 55 public: 56 explicit QEventLoop(QObject *parent = nullptr); 57 ~QEventLoop(); 58 59 enum ProcessEventsFlag { 60 AllEvents = 0x00, 61 ExcludeUserInputEvents = 0x01, 62 ExcludeSocketNotifiers = 0x02, 63 WaitForMoreEvents = 0x04, 64 X11ExcludeTimers = 0x08, 65 EventLoopExec = 0x20, 66 DialogExec = 0x40 67 }; 68 Q_DECLARE_FLAGS(ProcessEventsFlags, ProcessEventsFlag) 69 70 bool processEvents(ProcessEventsFlags flags = AllEvents); 71 void processEvents(ProcessEventsFlags flags, int maximumTime); 72 73 int exec(ProcessEventsFlags flags = AllEvents); 74 void exit(int returnCode = 0); 75 bool isRunning() const; 76 77 void wakeUp(); 78 79 bool event(QEvent *event) override; 80 81 public Q_SLOTS: 82 void quit(); 83 }; 84 85 Q_DECLARE_OPERATORS_FOR_FLAGS(QEventLoop::ProcessEventsFlags) 86 87 88 class QEventLoopLockerPrivate; 89 90 class Q_CORE_EXPORT QEventLoopLocker 91 { 92 public: 93 QEventLoopLocker(); 94 explicit QEventLoopLocker(QEventLoop *loop); 95 explicit QEventLoopLocker(QThread *thread); 96 ~QEventLoopLocker(); 97 98 private: 99 Q_DISABLE_COPY(QEventLoopLocker) 100 QEventLoopLockerPrivate *d_ptr; 101 }; 102 103 QT_END_NAMESPACE 104 105 #endif // QEVENTLOOP_H 106