1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2015 The Qt Company Ltd. 4 ** Contact: http://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtGui 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 http://www.qt.io/terms-conditions. For further 15 ** information use the contact form at http://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 2.1 or version 3 as published by the Free 20 ** Software Foundation and appearing in the file LICENSE.LGPLv21 and 21 ** LICENSE.LGPLv3 included in the packaging of this file. Please review the 22 ** following information to ensure the GNU Lesser General Public License 23 ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and 24 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. 25 ** 26 ** As a special exception, The Qt Company gives you certain additional 27 ** rights. These rights are described in The Qt Company LGPL Exception 28 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. 29 ** 30 ** GNU General Public License Usage 31 ** Alternatively, this file may be used under the terms of the GNU 32 ** General Public License version 3.0 as published by the Free Software 33 ** Foundation and appearing in the file LICENSE.GPL included in the 34 ** packaging of this file. Please review the following information to 35 ** ensure the GNU General Public License version 3.0 requirements will be 36 ** met: http://www.gnu.org/copyleft/gpl.html. 37 ** 38 ** $QT_END_LICENSE$ 39 ** 40 ****************************************************************************/ 41 42 #ifndef QWSSIGNALHANDLER_P_H 43 #define QWSSIGNALHANDLER_P_H 44 45 // 46 // W A R N I N G 47 // ------------- 48 // 49 // This file is not part of the Qt API. It exists for the convenience 50 // of the QLibrary class. This header file may change from 51 // version to version without notice, or even be removed. 52 // 53 // We mean it. 54 // 55 56 #include <QtCore/qglobal.h> 57 58 #ifndef QT_NO_QWS_SIGNALHANDLER 59 60 #include <QtCore/qhash.h> 61 #include <QtCore/qlist.h> 62 #include <QtCore/qobjectcleanuphandler.h> 63 64 QT_BEGIN_NAMESPACE 65 66 typedef void (*qt_sighandler_t)(int); 67 68 class QLock; 69 class QWSLock; 70 71 class QWSSignalHandlerPrivate; 72 73 class Q_GUI_EXPORT QWSSignalHandler 74 { 75 public: 76 static QWSSignalHandler* instance(); 77 78 ~QWSSignalHandler(); 79 80 #ifndef QT_NO_QWS_MULTIPROCESS addLock(QLock * lock)81 inline void addLock(QLock *lock) { locks.append(lock); } removeLock(QLock * lock)82 inline void removeLock(QLock *lock) { locks.removeOne(lock); } addWSLock(QWSLock * wslock)83 inline void addWSLock(QWSLock *wslock) { wslocks.append(wslock); } removeWSLock(QWSLock * wslock)84 inline void removeWSLock(QWSLock *wslock) { wslocks.removeOne(wslock); } 85 #endif addObject(QObject * object)86 inline void addObject(QObject *object) { (void)objects.add(object); } 87 88 private: 89 QWSSignalHandler(); 90 91 void clear(); 92 93 static void handleSignal(int signal); 94 95 QHash<int, qt_sighandler_t> oldHandlers; 96 #ifndef QT_NO_QWS_MULTIPROCESS 97 QList<QLock *> locks; 98 QList<QWSLock *> wslocks; 99 #endif 100 QObjectCleanupHandler objects; 101 102 friend class QWSSignalHandlerPrivate; 103 }; 104 105 QT_END_NAMESPACE 106 107 #endif // QT_NO_QWS_SIGNALHANDLER 108 109 #endif // QWSSIGNALHANDLER_P_H 110