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 QEVENTDISPATCHER_WIN_P_H 41 #define QEVENTDISPATCHER_WIN_P_H 42 43 // 44 // W A R N I N G 45 // ------------- 46 // 47 // This file is not part of the Qt API. It exists purely as an 48 // implementation detail. This header file may change from version to 49 // version without notice, or even be removed. 50 // 51 // We mean it. 52 // 53 54 #include "QtCore/qabstracteventdispatcher.h" 55 #include "QtCore/qt_windows.h" 56 #include "QtCore/qhash.h" 57 58 #include "qabstracteventdispatcher_p.h" 59 60 QT_BEGIN_NAMESPACE 61 62 class QWinEventNotifier; 63 class QEventDispatcherWin32Private; 64 65 // forward declaration 66 LRESULT QT_WIN_CALLBACK qt_internal_proc(HWND hwnd, UINT message, WPARAM wp, LPARAM lp); 67 quint64 qt_msectime(); 68 69 class Q_CORE_EXPORT QEventDispatcherWin32 : public QAbstractEventDispatcher 70 { 71 Q_OBJECT 72 Q_DECLARE_PRIVATE(QEventDispatcherWin32) 73 74 protected: 75 void createInternalHwnd(); 76 77 public: 78 explicit QEventDispatcherWin32(QObject *parent = 0); 79 ~QEventDispatcherWin32(); 80 81 bool QT_ENSURE_STACK_ALIGNED_FOR_SSE processEvents(QEventLoop::ProcessEventsFlags flags) override; 82 bool hasPendingEvents() override; 83 84 void registerSocketNotifier(QSocketNotifier *notifier) override; 85 void unregisterSocketNotifier(QSocketNotifier *notifier) override; 86 87 void registerTimer(int timerId, int interval, Qt::TimerType timerType, QObject *object) override; 88 bool unregisterTimer(int timerId) override; 89 bool unregisterTimers(QObject *object) override; 90 QList<TimerInfo> registeredTimers(QObject *object) const override; 91 92 bool registerEventNotifier(QWinEventNotifier *notifier) override; 93 void unregisterEventNotifier(QWinEventNotifier *notifier) override; 94 void activateEventNotifiers(); 95 96 int remainingTime(int timerId) override; 97 98 void wakeUp() override; 99 void interrupt() override; 100 void flush() override; 101 102 void startingUp() override; 103 void closingDown() override; 104 105 bool event(QEvent *e) override; 106 107 HWND internalHwnd(); 108 109 protected: 110 QEventDispatcherWin32(QEventDispatcherWin32Private &dd, QObject *parent = 0); 111 virtual void sendPostedEvents(); 112 void doUnregisterSocketNotifier(QSocketNotifier *notifier); 113 void doUnregisterEventNotifier(QWinEventNotifier *notifier); 114 115 private: 116 friend LRESULT QT_WIN_CALLBACK qt_internal_proc(HWND hwnd, UINT message, WPARAM wp, LPARAM lp); 117 friend LRESULT QT_WIN_CALLBACK qt_GetMessageHook(int, WPARAM, LPARAM); 118 }; 119 120 struct QSockNot { 121 QSocketNotifier *obj; 122 int fd; 123 }; 124 typedef QHash<int, QSockNot *> QSNDict; 125 126 struct QSockFd { 127 long event; 128 long mask; 129 bool selected; 130 eventQSockFd131 explicit inline QSockFd(long ev = 0, long ma = 0) : event(ev), mask(ma), selected(false) { } 132 }; 133 typedef QHash<int, QSockFd> QSFDict; 134 135 struct WinTimerInfo { // internal timer info 136 QObject *dispatcher; 137 int timerId; 138 int interval; 139 Qt::TimerType timerType; 140 quint64 timeout; // - when to actually fire 141 QObject *obj; // - object to receive events 142 bool inTimerEvent; 143 UINT fastTimerId; 144 }; 145 146 class QZeroTimerEvent : public QTimerEvent 147 { 148 public: QZeroTimerEvent(int timerId)149 explicit inline QZeroTimerEvent(int timerId) 150 : QTimerEvent(timerId) 151 { t = QEvent::ZeroTimerEvent; } 152 }; 153 154 typedef QList<WinTimerInfo*> WinTimerVec; // vector of TimerInfo structs 155 typedef QHash<int, WinTimerInfo*> WinTimerDict; // fast dict of timers 156 157 class Q_CORE_EXPORT QEventDispatcherWin32Private : public QAbstractEventDispatcherPrivate 158 { 159 Q_DECLARE_PUBLIC(QEventDispatcherWin32) 160 public: 161 QEventDispatcherWin32Private(); 162 ~QEventDispatcherWin32Private(); get(QEventDispatcherWin32 * q)163 static QEventDispatcherWin32Private *get(QEventDispatcherWin32 *q) { return q->d_func(); } 164 165 DWORD threadId; 166 167 QAtomicInt interrupt; 168 169 // internal window handle used for socketnotifiers/timers/etc 170 HWND internalHwnd; 171 HHOOK getMessageHook; 172 173 // for controlling when to send posted events 174 UINT_PTR sendPostedEventsTimerId; 175 QAtomicInt wakeUps; 176 177 // timers 178 WinTimerVec timerVec; 179 WinTimerDict timerDict; 180 void registerTimer(WinTimerInfo *t); 181 void unregisterTimer(WinTimerInfo *t); 182 void sendTimerEvent(int timerId); 183 184 // socket notifiers 185 QSNDict sn_read; 186 QSNDict sn_write; 187 QSNDict sn_except; 188 QSFDict active_fd; 189 bool activateNotifiersPosted; 190 void postActivateSocketNotifiers(); 191 void doWsaAsyncSelect(int socket, long event); 192 193 bool closingDown = false; 194 195 bool winEventNotifierListModified = false; 196 HANDLE winEventNotifierActivatedEvent; 197 QList<QWinEventNotifier *> winEventNotifierList; 198 void activateEventNotifier(QWinEventNotifier * wen); 199 200 QList<MSG> queuedUserInputEvents; 201 QList<MSG> queuedSocketEvents; 202 }; 203 204 QT_END_NAMESPACE 205 206 #endif // QEVENTDISPATCHER_WIN_P_H 207