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qtimer.cpp

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1 /**************************************************************************** -

2 ** -

5 ** Contact: https://www.qt.io/licensing/ -

6 ** -

7 ** This file is part of the QtCore module of the Qt Toolkit. -

8 ** -

9 ** $QT_BEGIN_LICENSE:LGPL$ -

10 ** Commercial License Usage -

11 ** Licensees holding valid commercial Qt licenses may use this file in -

12 ** accordance with the commercial license agreement provided with the -

13 ** Software or, alternatively, in accordance with the terms contained in -

14 ** a written agreement between you and The Qt Company. For licensing terms -

15 ** and conditions see https://www.qt.io/terms-conditions. For further -

16 ** information use the contact form at https://www.qt.io/contact-us. -

17 ** -

18 ** GNU Lesser General Public License Usage -

19 ** Alternatively, this file may be used under the terms of the GNU Lesser -

20 ** General Public License version 3 as published by the Free Software -

21 ** Foundation and appearing in the file LICENSE.LGPL3 included in the -

22 ** packaging of this file. Please review the following information to -

23 ** ensure the GNU Lesser General Public License version 3 requirements -

24 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -

25 ** -

26 ** GNU General Public License Usage -

27 ** Alternatively, this file may be used under the terms of the GNU -

28 ** General Public License version 2.0 or (at your option) the GNU General -

29 ** Public license version 3 or any later version approved by the KDE Free -

30 ** Qt Foundation. The licenses are as published by the Free Software -

31 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -

32 ** included in the packaging of this file. Please review the following -

33 ** information to ensure the GNU General Public License requirements will -

34 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and -

35 ** https://www.gnu.org/licenses/gpl-3.0.html. -

36 ** -

37 ** $QT_END_LICENSE$ -

38 ** -

39 ****************************************************************************/ -

40 -

41 #include "qtimer.h" -

42 #include "qabstracteventdispatcher.h" -

43 #include "qcoreapplication.h" -

44 #include "qobject_p.h" -

45 -

46 QT_BEGIN_NAMESPACE -

47 -

48 /*! -

49 \class QTimer -

50 \inmodule QtCore -

51 \brief The QTimer class provides repetitive and single-shot timers. -

52 -

53 \ingroup events -

54 -

55 -

56 The QTimer class provides a high-level programming interface for -

57 timers. To use it, create a QTimer, connect its timeout() signal -

58 to the appropriate slots, and call start(). From then on, it will -

59 emit the timeout() signal at constant intervals. -

60 -

61 Example for a one second (1000 millisecond) timer (from the -

62 \l{widgets/analogclock}{Analog Clock} example): -

63 -

64 \snippet ../widgets/widgets/analogclock/analogclock.cpp 4 -

65 \snippet ../widgets/widgets/analogclock/analogclock.cpp 5 -

66 \snippet ../widgets/widgets/analogclock/analogclock.cpp 6 -

67 -

68 From then on, the \c update() slot is called every second. -

69 -

70 You can set a timer to time out only once by calling -

71 setSingleShot(true). You can also use the static -

72 QTimer::singleShot() function to call a slot after a specified -

73 interval: -

74 -

75 \snippet timers/timers.cpp 3 -

76 -

77 In multithreaded applications, you can use QTimer in any thread -

78 that has an event loop. To start an event loop from a non-GUI -

79 thread, use QThread::exec(). Qt uses the timer's -

80 \l{QObject::thread()}{thread affinity} to determine which thread -

81 will emit the \l{QTimer::}{timeout()} signal. Because of this, you -

82 must start and stop the timer in its thread; it is not possible to -

83 start a timer from another thread. -

84 -

85 As a special case, a QTimer with a timeout of 0 will time out as -

86 soon as all the events in the window system's event queue have -

87 been processed. This can be used to do heavy work while providing -

88 a snappy user interface: -

89 -

90 \snippet timers/timers.cpp 4 -

91 \snippet timers/timers.cpp 5 -

92 \snippet timers/timers.cpp 6 -

93 -

94 From then on, \c processOneThing() will be called repeatedly. It -

95 should be written in such a way that it always returns quickly -

96 (typically after processing one data item) so that Qt can deliver -

97 events to the user interface and stop the timer as soon as it has done all -

98 its work. This is the traditional way of implementing heavy work -

99 in GUI applications, but as multithreading is nowadays becoming available on -

100 more and more platforms, we expect that zero-millisecond -

101 QTimer objects will gradually be replaced by \l{QThread}s. -

102 -

103 \section1 Accuracy and Timer Resolution -

104 -

105 The accuracy of timers depends on the underlying operating system -

106 and hardware. Most platforms support a resolution of 1 millisecond, -

107 though the accuracy of the timer will not equal this resolution -

108 in many real-world situations. -

109 -

110 The accuracy also depends on the \l{Qt::TimerType}{timer type}. For -

111 Qt::PreciseTimer, QTimer will try to keep the accurance at 1 millisecond. -

112 Precise timers will also never time out earlier than expected. -

113 -

114 For Qt::CoarseTimer and Qt::VeryCoarseTimer types, QTimer may wake up -

115 earlier than expected, within the margins for those types: 5% of the -

116 interval for Qt::CoarseTimer and 500 ms for Qt::VeryCoarseTimer. -

117 -

118 All timer types may time out later than expected if the system is busy or -

119 unable to provide the requested accuracy. In such a case of timeout -

120 overrun, Qt will emit activated() only once, even if multiple timeouts have -

121 expired, and then will resume the original interval. -

122 -

123 \section1 Alternatives to QTimer -

124 -

125 An alternative to using QTimer is to call QObject::startTimer() -

126 for your object and reimplement the QObject::timerEvent() event -

127 handler in your class (which must inherit QObject). The -

128 disadvantage is that timerEvent() does not support such -

129 high-level features as single-shot timers or signals. -

130 -

131 Another alternative is QBasicTimer. It is typically less -

132 cumbersome than using QObject::startTimer() -

133 directly. See \l{Timers} for an overview of all three approaches. -

134 -

135 Some operating systems limit the number of timers that may be -

136 used; Qt tries to work around these limitations. -

137 -

138 \sa QBasicTimer, QTimerEvent, QObject::timerEvent(), Timers, -

139 {Analog Clock Example}, {Wiggly Example} -

140 */ -

141 -

142 static const int INV_TIMER = -1; // invalid timer id -

143 -

144 /*! -

145 Constructs a timer with the given \a parent. -

146 */ -

147 -

148 QTimer::QTimer(QObject *parent) -

149 : QObject(parent), id(INV_TIMER), inter(0), del(0), single(0), nulltimer(0), type(Qt::CoarseTimer) -

150 { -

151

}

executed 5261 times by 65 tests: end of block

Executed by:

tst_NetworkSelfTest
tst_QAbstractNetworkCache
tst_QAccessibility
tst_QApplication
tst_QComboBox
tst_QCompleter
tst_QDataWidgetMapper
tst_QEventLoop
tst_QFileDialog2
tst_QFileSystemModel
tst_QFileSystemWatcher
tst_QFiledialog
tst_QFontComboBox
tst_QFontDialog
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiApplication
tst_QGuiEventLoop
tst_QHostInfo
tst_QHttpNetworkConnection
tst_QHttpSocketEngine
tst_QIODevice
tst_QImageReader
tst_QInputDialog
tst_QLabel
...

5261

152 -

153 -

154 /*! -

155 Destroys the timer. -

156 */ -

157 -

158 QTimer::~QTimer() -

159 { -

160

if (id != INV_TIMER) // stop running timer

id != INV_TIMER

Description

TRUE

evaluated 326 times by 41 tests

Evaluated by:

tst_QApplication
tst_QEventLoop
tst_QFileDialog2
tst_QFileSystemModel
tst_QFileSystemWatcher
tst_QFiledialog
tst_QFontDialog
tst_QGraphicsProxyWidget
tst_QGuiApplication
tst_QGuiEventLoop
tst_QLabel
tst_QLineEdit
tst_QMovie
tst_QNetworkReply
tst_QPrinter
tst_QProgressDialog
tst_QSocketNotifier
tst_QStateMachine
tst_QStatusBar
tst_QTabBar
tst_QTcpSocket
tst_QTextEdit
tst_QTimer
tst_QTreeView
tst_languageChange
...

FALSE

evaluated 4922 times by 58 tests

Evaluated by:

tst_NetworkSelfTest
tst_QAbstractNetworkCache
tst_QAccessibility
tst_QApplication
tst_QComboBox
tst_QCompleter
tst_QDataWidgetMapper
tst_QEventLoop
tst_QFileDialog2
tst_QFileSystemModel
tst_QFiledialog
tst_QFontComboBox
tst_QFontDialog
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiApplication
tst_QGuiEventLoop
tst_QHttpNetworkConnection
tst_QHttpSocketEngine
tst_QIODevice
tst_QImageReader
tst_QInputDialog
tst_QLabel
tst_QMenu
tst_QMovie
...

326-4922

161

stop();

executed 326 times by 41 tests: stop();

Executed by:

tst_QApplication
tst_QEventLoop
tst_QFileDialog2
tst_QFileSystemModel
tst_QFileSystemWatcher
tst_QFiledialog
tst_QFontDialog
tst_QGraphicsProxyWidget
tst_QGuiApplication
tst_QGuiEventLoop
tst_QLabel
tst_QLineEdit
tst_QMovie
tst_QNetworkReply
tst_QPrinter
tst_QProgressDialog
tst_QSocketNotifier
tst_QStateMachine
tst_QStatusBar
tst_QTabBar
tst_QTcpSocket
tst_QTextEdit
tst_QTimer
tst_QTreeView
tst_languageChange
...

326

162

}

executed 5248 times by 79 tests: end of block

Executed by:

tst_NetworkSelfTest
tst_QAbstractNetworkCache
tst_QAccessibility
tst_QApplication
tst_QComboBox
tst_QCompleter
tst_QDataWidgetMapper
tst_QEventLoop
tst_QFileDialog2
tst_QFileSystemModel
tst_QFileSystemWatcher
tst_QFiledialog
tst_QFontComboBox
tst_QFontDialog
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiApplication
tst_QGuiEventLoop
tst_QHttpNetworkConnection
tst_QHttpSocketEngine
tst_QIODevice
tst_QImageReader
tst_QInputDialog
tst_QLabel
tst_QLineEdit
...

5248

163 -

164 -

165 /*! -

166 \fn void QTimer::timeout() -

167 -

168 This signal is emitted when the timer times out. -

169 -

170 \sa interval, start(), stop() -

171 */ -

172 -

173 /*! -

174 \property QTimer::active -

175 \since 4.3 -

176 -

177 This boolean property is \c true if the timer is running; otherwise -

178 false. -

179 */ -

180 -

181 /*! -

182 \fn bool QTimer::isActive() const -

183 -

184 Returns \c true if the timer is running (pending); otherwise returns -

185 false. -

186 */ -

187 -

188 /*! -

189 \fn int QTimer::timerId() const -

190 -

191 Returns the ID of the timer if the timer is running; otherwise returns -

192 -1. -

193 */ -

194 -

195 -

196 /*! \overload start() -

197 -

198 Starts or restarts the timer with the timeout specified in \l interval. -

199 -

200 If the timer is already running, it will be -

201 \l{QTimer::stop()}{stopped} and restarted. -

202 -

203 If \l singleShot is true, the timer will be activated only once. -

204 */ -

205 void QTimer::start() -

206 { -

207

if (id != INV_TIMER) // stop running timer

id != INV_TIMER

Description

TRUE

evaluated 22 times by 2 tests

Evaluated by:

tst_QFileSystemWatcher
tst_QProgressDialog

FALSE

evaluated 5017 times by 57 tests

Evaluated by:

tst_NetworkSelfTest
tst_QAbstractNetworkCache
tst_QApplication
tst_QCompleter
tst_QEventLoop
tst_QFileDialog2
tst_QFileSystemModel
tst_QFileSystemWatcher
tst_QFiledialog
tst_QFontDialog
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiApplication
tst_QGuiEventLoop
tst_QHostInfo
tst_QHttpNetworkConnection
tst_QHttpSocketEngine
tst_QIODevice
tst_QImageReader
tst_QLabel
tst_QLineEdit
tst_QMenu
tst_QMovie
tst_QNetworkAccessManager
tst_QNetworkAccessManager_And_QProgressDialog
...

22-5017

208

stop();

executed 22 times by 2 tests: stop();

Executed by:

tst_QFileSystemWatcher
tst_QProgressDialog

209

nulltimer = (!inter && single);

!inter

Description

TRUE

evaluated 378 times by 11 tests

Evaluated by:

tst_QCompleter
tst_QFileDialog2
tst_QFileSystemModel
tst_QFiledialog
tst_QGraphicsProxyWidget
tst_QLabel
tst_QNetworkReply
tst_QPrinter
tst_QSocketNotifier
tst_QTimer
tst_languageChange

FALSE

evaluated 4661 times by 54 tests

Evaluated by:

tst_NetworkSelfTest
tst_QAbstractNetworkCache
tst_QApplication
tst_QEventLoop
tst_QFileDialog2
tst_QFileSystemWatcher
tst_QFiledialog
tst_QFontDialog
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiApplication
tst_QGuiEventLoop
tst_QHostInfo
tst_QHttpNetworkConnection
tst_QHttpSocketEngine
tst_QIODevice
tst_QImageReader
tst_QLabel
tst_QLineEdit
tst_QMenu
tst_QMovie
tst_QNetworkAccessManager
tst_QNetworkAccessManager_And_QProgressDialog
tst_QNetworkConfiguration
tst_QNetworkConfigurationManager
...

single	Description
TRUE	evaluated 369 times by 10 tests Evaluated by: tst_QCompleter tst_QFileDialog2 tst_QFileSystemModel tst_QFiledialog tst_QGraphicsProxyWidget tst_QLabel tst_QNetworkReply tst_QPrinter tst_QTimer tst_languageChange
FALSE	evaluated 9 times by 2 tests Evaluated by: tst_QSocketNotifier tst_QTimer

9-4661

210 id = QObject::startTimer(inter, Qt::TimerType(type)); -

211

}

executed 5039 times by 57 tests: end of block

Executed by:

tst_NetworkSelfTest
tst_QAbstractNetworkCache
tst_QApplication
tst_QCompleter
tst_QEventLoop
tst_QFileDialog2
tst_QFileSystemModel
tst_QFileSystemWatcher
tst_QFiledialog
tst_QFontDialog
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiApplication
tst_QGuiEventLoop
tst_QHostInfo
tst_QHttpNetworkConnection
tst_QHttpSocketEngine
tst_QIODevice
tst_QImageReader
tst_QLabel
tst_QLineEdit
tst_QMenu
tst_QMovie
tst_QNetworkAccessManager
tst_QNetworkAccessManager_And_QProgressDialog
...

5039

212 -

213 /*! -

214 Starts or restarts the timer with a timeout interval of \a msec -

215 milliseconds. -

216 -

217 If the timer is already running, it will be -

218 \l{QTimer::stop()}{stopped} and restarted. -

219 -

220 If \l singleShot is true, the timer will be activated only once. -

221 -

222 */ -

223 void QTimer::start(int msec) -

224 { -

225 inter = msec; -

226 start(); -

227

}

executed 4917 times by 45 tests: end of block

Executed by:

tst_NetworkSelfTest
tst_QAbstractNetworkCache
tst_QApplication
tst_QCompleter
tst_QEventLoop
tst_QFileDialog2
tst_QFileSystemModel
tst_QFileSystemWatcher
tst_QFiledialog
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiEventLoop
tst_QHttpNetworkConnection
tst_QHttpSocketEngine
tst_QIODevice
tst_QImageReader
tst_QLabel
tst_QLineEdit
tst_QMovie
tst_QNetworkAccessManager_And_QProgressDialog
tst_QNetworkDiskCache
tst_QNetworkInterface
tst_QNetworkProxyFactory
tst_QNetworkReply
tst_QObject
...

4917

228 -

229 -

230 -

231 /*! -

232 Stops the timer. -

233 -

234 \sa start() -

235 */ -

236 -

237 void QTimer::stop() -

238 { -

239

if (id != INV_TIMER) {

id != INV_TIMER

Description

TRUE

evaluated 5038 times by 68 tests

Evaluated by:

tst_NetworkSelfTest
tst_QAbstractNetworkCache
tst_QApplication
tst_QCompleter
tst_QEventLoop
tst_QFileDialog2
tst_QFileSystemModel
tst_QFileSystemWatcher
tst_QFiledialog
tst_QFontDialog
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiApplication
tst_QGuiEventLoop
tst_QHostInfo
tst_QHttpNetworkConnection
tst_QHttpSocketEngine
tst_QIODevice
tst_QImageReader
tst_QLabel
tst_QLineEdit
tst_QMenu
tst_QMovie
tst_QNetworkAccessManager_And_QProgressDialog
tst_QNetworkDiskCache
...

FALSE

evaluated 5615 times by 32 tests

Evaluated by:

tst_NetworkSelfTest
tst_QAbstractNetworkCache
tst_QEventLoop
tst_QFtp
tst_QGuiEventLoop
tst_QHttpNetworkConnection
tst_QHttpSocketEngine
tst_QIODevice
tst_QImageReader
tst_QLabel
tst_QMovie
tst_QNetworkAccessManager_And_QProgressDialog
tst_QNetworkDiskCache
tst_QNetworkInterface
tst_QNetworkProxyFactory
tst_QNetworkReply
tst_QObject
tst_QProgressDialog
tst_QSocketNotifier
tst_QSocks5SocketEngine
tst_QSslSocket
tst_QSslSocket_onDemandCertificates_member
tst_QSslSocket_onDemandCertificates_static
tst_QTcpServer
tst_QTcpSocket
...

5038-5615

240 QObject::killTimer(id); -

241 id = INV_TIMER; -

242

}

executed 5038 times by 68 tests: end of block

Executed by:

tst_NetworkSelfTest
tst_QAbstractNetworkCache
tst_QApplication
tst_QCompleter
tst_QEventLoop
tst_QFileDialog2
tst_QFileSystemModel
tst_QFileSystemWatcher
tst_QFiledialog
tst_QFontDialog
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiApplication
tst_QGuiEventLoop
tst_QHostInfo
tst_QHttpNetworkConnection
tst_QHttpSocketEngine
tst_QIODevice
tst_QImageReader
tst_QLabel
tst_QLineEdit
tst_QMenu
tst_QMovie
tst_QNetworkAccessManager_And_QProgressDialog
tst_QNetworkDiskCache
...

5038

243

}

executed 10653 times by 69 tests: end of block

Executed by:

tst_NetworkSelfTest
tst_QAbstractNetworkCache
tst_QApplication
tst_QCompleter
tst_QEventLoop
tst_QFileDialog2
tst_QFileSystemModel
tst_QFileSystemWatcher
tst_QFiledialog
tst_QFontDialog
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiApplication
tst_QGuiEventLoop
tst_QHostInfo
tst_QHttpNetworkConnection
tst_QHttpSocketEngine
tst_QIODevice
tst_QImageReader
tst_QLabel
tst_QLineEdit
tst_QMenu
tst_QMovie
tst_QNetworkAccessManager_And_QProgressDialog
tst_QNetworkDiskCache
...

10653

244 -

245 -

246 /*! -

247 \reimp -

248 */ -

249 void QTimer::timerEvent(QTimerEvent *e) -

250 { -

251

if (e->timerId() == id) {

e->timerId() == id

Description

TRUE

evaluated 12783 times by 31 tests

Evaluated by:

tst_QApplication
tst_QCompleter
tst_QEventLoop
tst_QFileDialog2
tst_QFileSystemModel
tst_QFileSystemWatcher
tst_QFiledialog
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiApplication
tst_QGuiEventLoop
tst_QHostInfo
tst_QLabel
tst_QLineEdit
tst_QMenu
tst_QMovie
tst_QNetworkReply
tst_QNetworkSession
tst_QObject
tst_QPrinter
tst_QProgressDialog
tst_QSocketNotifier
tst_QStateMachine
tst_QStatusBar
tst_QTextEdit
...

FALSE

never evaluated

0-12783

252

if (single)

single	Description
TRUE	evaluated 380 times by 19 tests Evaluated by: tst_QApplication tst_QCompleter tst_QFileDialog2 tst_QFileSystemModel tst_QFiledialog tst_QGraphicsProxyWidget tst_QGuiApplication tst_QHostInfo tst_QLabel tst_QMenu tst_QMovie tst_QNetworkReply tst_QNetworkSession tst_QObject tst_QPrinter tst_QStateMachine tst_QTimer tst_QUdpSocket tst_languageChange
FALSE	evaluated 12403 times by 20 tests Evaluated by: tst_QApplication tst_QEventLoop tst_QFileSystemWatcher tst_QFiledialog tst_QFtp tst_QGraphicsProxyWidget tst_QGuiApplication tst_QGuiEventLoop tst_QLabel tst_QLineEdit tst_QNetworkReply tst_QProgressDialog tst_QSocketNotifier tst_QStatusBar tst_QTextEdit tst_QTimer tst_QToolButton tst_QTreeView tst_languageChange tst_qapplication - unknown status

380-12403

253

stop();

executed 380 times by 19 tests: stop();

Executed by:

tst_QApplication
tst_QCompleter
tst_QFileDialog2
tst_QFileSystemModel
tst_QFiledialog
tst_QGraphicsProxyWidget
tst_QGuiApplication
tst_QHostInfo
tst_QLabel
tst_QMenu
tst_QMovie
tst_QNetworkReply
tst_QNetworkSession
tst_QObject
tst_QPrinter
tst_QStateMachine
tst_QTimer
tst_QUdpSocket
tst_languageChange

380

254 emit timeout(QPrivateSignal()); -

255

}

executed 12782 times by 31 tests: end of block

Executed by:

tst_QApplication
tst_QCompleter
tst_QEventLoop
tst_QFileDialog2
tst_QFileSystemModel
tst_QFileSystemWatcher
tst_QFiledialog
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiApplication
tst_QGuiEventLoop
tst_QHostInfo
tst_QLabel
tst_QLineEdit
tst_QMenu
tst_QMovie
tst_QNetworkReply
tst_QNetworkSession
tst_QObject
tst_QPrinter
tst_QProgressDialog
tst_QSocketNotifier
tst_QStateMachine
tst_QStatusBar
tst_QTextEdit
...

12782

256

}

executed 12782 times by 31 tests: end of block

Executed by:

tst_QApplication
tst_QCompleter
tst_QEventLoop
tst_QFileDialog2
tst_QFileSystemModel
tst_QFileSystemWatcher
tst_QFiledialog
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiApplication
tst_QGuiEventLoop
tst_QHostInfo
tst_QLabel
tst_QLineEdit
tst_QMenu
tst_QMovie
tst_QNetworkReply
tst_QNetworkSession
tst_QObject
tst_QPrinter
tst_QProgressDialog
tst_QSocketNotifier
tst_QStateMachine
tst_QStatusBar
tst_QTextEdit
...

12782

257 -

258 class QSingleShotTimer : public QObject -

259 { -

260 Q_OBJECT -

261 int timerId; -

262 bool hasValidReceiver; -

263 QPointer<const QObject> receiver; -

264 QtPrivate::QSlotObjectBase *slotObj; -

265 public: -

266 ~QSingleShotTimer(); -

267 QSingleShotTimer(int msec, Qt::TimerType timerType, const QObject *r, const char * m); -

268 QSingleShotTimer(int msec, Qt::TimerType timerType, const QObject *r, QtPrivate::QSlotObjectBase *slotObj); -

269 -

270 Q_SIGNALS: -

271 void timeout(); -

272 protected: -

273 void timerEvent(QTimerEvent *) Q_DECL_OVERRIDE; -

274 }; -

275 -

276 QSingleShotTimer::QSingleShotTimer(int msec, Qt::TimerType timerType, const QObject *r, const char *member) -

277 : QObject(QAbstractEventDispatcher::instance()), hasValidReceiver(true), slotObj(0) -

278 { -

279 timerId = startTimer(msec, timerType); -

280 connect(this, SIGNAL(timeout()), r, member); -

281

}

executed 1247 times by 32 tests: end of block

Executed by:

tst_QApplication
tst_QColorDialog
tst_QCommandLinkButton
tst_QCoreApplication
tst_QDBusMarshall
tst_QEventLoop
tst_QFontDialog
tst_QFtp
tst_QGraphicsItem
tst_QGraphicsView
tst_QGuiApplication
tst_QGuiEventLoop
tst_QImageReader
tst_QItemDelegate
tst_QMenu
tst_QNetworkReply
tst_QProgressBar
tst_QPushButton
tst_QSignalSpy
tst_QSocks5SocketEngine
tst_QSslSocket
tst_QSystemTrayIcon
tst_QTcpServer
tst_QTcpSocket
tst_QThread
...

1247

282 -

283 QSingleShotTimer::QSingleShotTimer(int msec, Qt::TimerType timerType, const QObject *r, QtPrivate::QSlotObjectBase *slotObj) -

284 : QObject(QAbstractEventDispatcher::instance()), hasValidReceiver(r), receiver(r), slotObj(slotObj) -

285 { -

286 timerId = startTimer(msec, timerType); -

287

if (r && thread() != r->thread()) {

r	Description
TRUE	evaluated 20016 times by 4 tests Evaluated by: tst_QObject tst_QSocketNotifier tst_QTimer tst_QtConcurrentRun
FALSE	evaluated 6 times by 1 test Evaluated by: tst_QTimer

thread() != r->thread()	Description
TRUE	evaluated 20006 times by 1 test Evaluated by: tst_QTimer
FALSE	evaluated 10 times by 4 tests Evaluated by: tst_QObject tst_QSocketNotifier tst_QTimer tst_QtConcurrentRun

6-20016

288 // Avoid leaking the QSingleShotTimer instance in case the application exits before the timer fires -

289 connect(QCoreApplication::instance(), &QCoreApplication::aboutToQuit, this, &QObject::deleteLater); -

290 setParent(0); -

291 moveToThread(r->thread()); -

292

}

executed 20006 times by 1 test: end of block

Executed by:

tst_QTimer

20006

293

}

executed 20022 times by 4 tests: end of block

Executed by:

tst_QObject
tst_QSocketNotifier
tst_QTimer
tst_QtConcurrentRun

20022

294 -

295 QSingleShotTimer::~QSingleShotTimer() -

296 { -

297

if (timerId > 0)

timerId > 0

Description

TRUE

evaluated 138 times by 10 tests

Evaluated by:

tst_QApplication
tst_QCoreApplication
tst_QGuiApplication
tst_QNetworkReply
tst_qcolordialog - unknown status
tst_qimagereader - unknown status
tst_qsslsocket - unknown status
tst_qsystemtrayicon - unknown status
tst_qthread - unknown status
tst_qtoolbutton - unknown status

FALSE

evaluated 21126 times by 33 tests

Evaluated by:

tst_QApplication
tst_QColorDialog
tst_QCommandLinkButton
tst_QCoreApplication
tst_QDBusMarshall
tst_QEventLoop
tst_QFontDialog
tst_QFtp
tst_QGraphicsItem
tst_QGraphicsView
tst_QGuiApplication
tst_QGuiEventLoop
tst_QItemDelegate
tst_QMenu
tst_QNetworkReply
tst_QObject
tst_QProgressBar
tst_QPushButton
tst_QSignalSpy
tst_QSocketNotifier
tst_QSocks5SocketEngine
tst_QSslSocket
tst_QSystemTrayIcon
tst_QTcpServer
tst_QTcpSocket
...

138-21126

298

killTimer(timerId);

executed 138 times by 10 tests: killTimer(timerId);

Executed by:

tst_QApplication
tst_QCoreApplication
tst_QGuiApplication
tst_QNetworkReply
tst_qcolordialog - unknown status
tst_qimagereader - unknown status
tst_qsslsocket - unknown status
tst_qsystemtrayicon - unknown status
tst_qthread - unknown status
tst_qtoolbutton - unknown status

138

299

if (slotObj)

slotObj

Description

TRUE

evaluated 20022 times by 4 tests

Evaluated by:

tst_QObject
tst_QSocketNotifier
tst_QTimer
tst_QtConcurrentRun

FALSE

evaluated 1242 times by 36 tests

Evaluated by:

tst_QApplication
tst_QColorDialog
tst_QCommandLinkButton
tst_QCoreApplication
tst_QDBusMarshall
tst_QEventLoop
tst_QFontDialog
tst_QFtp
tst_QGraphicsItem
tst_QGraphicsView
tst_QGuiApplication
tst_QGuiEventLoop
tst_QItemDelegate
tst_QMenu
tst_QNetworkReply
tst_QProgressBar
tst_QPushButton
tst_QSignalSpy
tst_QSocks5SocketEngine
tst_QSslSocket
tst_QSystemTrayIcon
tst_QTcpServer
tst_QTcpSocket
tst_QThread
tst_QTimer
...

1242-20022

300

slotObj->destroyIfLastRef();

executed 20022 times by 4 tests: slotObj->destroyIfLastRef();

Executed by:

tst_QObject
tst_QSocketNotifier
tst_QTimer
tst_QtConcurrentRun

20022

301

}

executed 21264 times by 39 tests: end of block

Executed by:

tst_QApplication
tst_QColorDialog
tst_QCommandLinkButton
tst_QCoreApplication
tst_QDBusMarshall
tst_QEventLoop
tst_QFontDialog
tst_QFtp
tst_QGraphicsItem
tst_QGraphicsView
tst_QGuiApplication
tst_QGuiEventLoop
tst_QItemDelegate
tst_QMenu
tst_QNetworkReply
tst_QObject
tst_QProgressBar
tst_QPushButton
tst_QSignalSpy
tst_QSocketNotifier
tst_QSocks5SocketEngine
tst_QSslSocket
tst_QSystemTrayIcon
tst_QTcpServer
tst_QTcpSocket
...

21264

302 -

303 void QSingleShotTimer::timerEvent(QTimerEvent *) -

304 { -

305 // need to kill the timer _before_ we emit timeout() in case the -

306 // slot connected to timeout calls processEvents() -

307

if (timerId > 0)

timerId > 0

Description

TRUE

evaluated 21126 times by 33 tests

Evaluated by:

tst_QApplication
tst_QColorDialog
tst_QCommandLinkButton
tst_QCoreApplication
tst_QDBusMarshall
tst_QEventLoop
tst_QFontDialog
tst_QFtp
tst_QGraphicsItem
tst_QGraphicsView
tst_QGuiApplication
tst_QGuiEventLoop
tst_QItemDelegate
tst_QMenu
tst_QNetworkReply
tst_QObject
tst_QProgressBar
tst_QPushButton
tst_QSignalSpy
tst_QSocketNotifier
tst_QSocks5SocketEngine
tst_QSslSocket
tst_QSystemTrayIcon
tst_QTcpServer
tst_QTcpSocket
...

FALSE

never evaluated

0-21126

308

killTimer(timerId);

executed 21126 times by 33 tests: killTimer(timerId);

Executed by:

tst_QApplication
tst_QColorDialog
tst_QCommandLinkButton
tst_QCoreApplication
tst_QDBusMarshall
tst_QEventLoop
tst_QFontDialog
tst_QFtp
tst_QGraphicsItem
tst_QGraphicsView
tst_QGuiApplication
tst_QGuiEventLoop
tst_QItemDelegate
tst_QMenu
tst_QNetworkReply
tst_QObject
tst_QProgressBar
tst_QPushButton
tst_QSignalSpy
tst_QSocketNotifier
tst_QSocks5SocketEngine
tst_QSslSocket
tst_QSystemTrayIcon
tst_QTcpServer
tst_QTcpSocket
...

21126

309 timerId = -1; -

310 -

311

if (slotObj) {

slotObj

Description

TRUE

evaluated 20022 times by 4 tests

Evaluated by:

tst_QObject
tst_QSocketNotifier
tst_QTimer
tst_QtConcurrentRun

FALSE

evaluated 1104 times by 30 tests

Evaluated by:

tst_QApplication
tst_QColorDialog
tst_QCommandLinkButton
tst_QCoreApplication
tst_QDBusMarshall
tst_QEventLoop
tst_QFontDialog
tst_QFtp
tst_QGraphicsItem
tst_QGraphicsView
tst_QGuiApplication
tst_QGuiEventLoop
tst_QItemDelegate
tst_QMenu
tst_QNetworkReply
tst_QProgressBar
tst_QPushButton
tst_QSignalSpy
tst_QSocks5SocketEngine
tst_QSslSocket
tst_QSystemTrayIcon
tst_QTcpServer
tst_QTcpSocket
tst_QThread
tst_QTimer
...

1104-20022

312 // If the receiver was destroyed, skip this part -

313

if (Q_LIKELY(!receiver.isNull() || !hasValidReceiver)) {

__builtin_expe...ceiver), true)	Description
TRUE	evaluated 20020 times by 4 tests Evaluated by: tst_QObject tst_QSocketNotifier tst_QTimer tst_QtConcurrentRun
FALSE	evaluated 2 times by 1 test Evaluated by: tst_QTimer

2-20020

314 // We allocate only the return type - we previously checked the function had -

315 // no arguments. -

316 void *args[1] = { 0 }; -

317 slotObj->call(const_cast<QObject*>(receiver.data()), args); -

318

}

executed 20020 times by 4 tests: end of block

Executed by:

tst_QObject
tst_QSocketNotifier
tst_QTimer
tst_QtConcurrentRun

20020

319

} else {

executed 20022 times by 4 tests: end of block

Executed by:

tst_QObject
tst_QSocketNotifier
tst_QTimer
tst_QtConcurrentRun

20022

320 emit timeout(); -

321

}

executed 1104 times by 30 tests: end of block

Executed by:

tst_QApplication
tst_QColorDialog
tst_QCommandLinkButton
tst_QCoreApplication
tst_QDBusMarshall
tst_QEventLoop
tst_QFontDialog
tst_QFtp
tst_QGraphicsItem
tst_QGraphicsView
tst_QGuiApplication
tst_QGuiEventLoop
tst_QItemDelegate
tst_QMenu
tst_QNetworkReply
tst_QProgressBar
tst_QPushButton
tst_QSignalSpy
tst_QSocks5SocketEngine
tst_QSslSocket
tst_QSystemTrayIcon
tst_QTcpServer
tst_QTcpSocket
tst_QThread
tst_QTimer
...

1104

322 -

323 // we would like to use delete later here, but it feels like a -

324 // waste to post a new event to handle this event, so we just unset the flag -

325 // and explicitly delete... -

326 qDeleteInEventHandler(this); -

327

}

executed 21126 times by 33 tests: end of block

Executed by:

tst_QApplication
tst_QColorDialog
tst_QCommandLinkButton
tst_QCoreApplication
tst_QDBusMarshall
tst_QEventLoop
tst_QFontDialog
tst_QFtp
tst_QGraphicsItem
tst_QGraphicsView
tst_QGuiApplication
tst_QGuiEventLoop
tst_QItemDelegate
tst_QMenu
tst_QNetworkReply
tst_QObject
tst_QProgressBar
tst_QPushButton
tst_QSignalSpy
tst_QSocketNotifier
tst_QSocks5SocketEngine
tst_QSslSocket
tst_QSystemTrayIcon
tst_QTcpServer
tst_QTcpSocket
...

21126

328 -

329 /*! -

330 \internal -

331 -

332 Implementation of the template version of singleShot -

333 -

334 \a msec is the timer interval -

335 \a timerType is the timer type -

336 \a receiver is the receiver object, can be null. In such a case, it will be the same -

337 as the final sender class. -

338 \a slot a pointer only used when using Qt::UniqueConnection -

339 \a slotObj the slot object -

340 */ -

341 void QTimer::singleShotImpl(int msec, Qt::TimerType timerType, -

342 const QObject *receiver, -

343 QtPrivate::QSlotObjectBase *slotObj) -

344 { -

345 new QSingleShotTimer(msec, timerType, receiver, slotObj); -

346

}

executed 20022 times by 4 tests: end of block

Executed by:

tst_QObject
tst_QSocketNotifier
tst_QTimer
tst_QtConcurrentRun

20022

347 -

348 /*! -

349 \reentrant -

350 This static function calls a slot after a given time interval. -

351 -

352 It is very convenient to use this function because you do not need -

353 to bother with a \l{QObject::timerEvent()}{timerEvent} or -

354 create a local QTimer object. -

355 -

356 Example: -

357 \snippet code/src_corelib_kernel_qtimer.cpp 0 -

358 -

359 This sample program automatically terminates after 10 minutes -

360 (600,000 milliseconds). -

361 -

362 The \a receiver is the receiving object and the \a member is the -

363 slot. The time interval is \a msec milliseconds. -

364 -

365 \sa start() -

366 */ -

367 -

368 void QTimer::singleShot(int msec, const QObject *receiver, const char *member) -

369 { -

370 // coarse timers are worst in their first firing -

371 // so we prefer a high precision timer for something that happens only once -

372 // unless the timeout is too big, in which case we go for coarse anyway -

373 singleShot(msec, msec >= 2000 ? Qt::CoarseTimer : Qt::PreciseTimer, receiver, member); -

374

}

executed 4560 times by 173 tests: end of block

Executed by:

tst_Gestures
tst_ModelTest
tst_NetworkSelfTest
tst_QAbstractButton
tst_QAbstractItemView
tst_QAbstractNetworkCache
tst_QAbstractScrollArea
tst_QAbstractSlider
tst_QAbstractSpinBox
tst_QAccessibility
tst_QAction
tst_QActionGroup
tst_QApplication
tst_QBackingStore
tst_QBoxLayout
tst_QButtonGroup
tst_QCalendarWidget
tst_QCheckBox
tst_QColorDialog
tst_QColumnView
tst_QComboBox
tst_QCommandLinkButton
tst_QCompleter
tst_QCoreApplication
tst_QDBusAbstractAdaptor
...

4560

375 -

376 /*! \overload -

377 \reentrant -

378 This static function calls a slot after a given time interval. -

379 -

380 It is very convenient to use this function because you do not need -

381 to bother with a \l{QObject::timerEvent()}{timerEvent} or -

382 create a local QTimer object. -

383 -

384 The \a receiver is the receiving object and the \a member is the slot. The -

385 time interval is \a msec milliseconds. The \a timerType affects the -

386 accuracy of the timer. -

387 -

388 \sa start() -

389 */ -

390 void QTimer::singleShot(int msec, Qt::TimerType timerType, const QObject *receiver, const char *member) -

391 { -

392

if (Q_UNLIKELY(msec < 0)) {

__builtin_expe...c < 0), false)

Description

TRUE

evaluated 1 time by 1 test

Evaluated by:

tst_QApplication

FALSE

evaluated 4559 times by 173 tests

Evaluated by:

tst_Gestures
tst_ModelTest
tst_NetworkSelfTest
tst_QAbstractButton
tst_QAbstractItemView
tst_QAbstractNetworkCache
tst_QAbstractScrollArea
tst_QAbstractSlider
tst_QAbstractSpinBox
tst_QAccessibility
tst_QAction
tst_QActionGroup
tst_QApplication
tst_QBackingStore
tst_QBoxLayout
tst_QButtonGroup
tst_QCalendarWidget
tst_QCheckBox
tst_QColorDialog
tst_QColumnView
tst_QComboBox
tst_QCommandLinkButton
tst_QCompleter
tst_QCoreApplication
tst_QDBusAbstractAdaptor
...

1-4559

393 qWarning("QTimer::singleShot: Timers cannot have negative timeouts"); -

394

return;

executed 1 time by 1 test: return;

Executed by:

tst_QApplication

395 } -

396

if (receiver && member) {

receiver

Description

TRUE

evaluated 4559 times by 173 tests

Evaluated by:

tst_Gestures
tst_ModelTest
tst_NetworkSelfTest
tst_QAbstractButton
tst_QAbstractItemView
tst_QAbstractNetworkCache
tst_QAbstractScrollArea
tst_QAbstractSlider
tst_QAbstractSpinBox
tst_QAccessibility
tst_QAction
tst_QActionGroup
tst_QApplication
tst_QBackingStore
tst_QBoxLayout
tst_QButtonGroup
tst_QCalendarWidget
tst_QCheckBox
tst_QColorDialog
tst_QColumnView
tst_QComboBox
tst_QCommandLinkButton
tst_QCompleter
tst_QCoreApplication
tst_QDBusAbstractAdaptor
...

FALSE

never evaluated

member

Description

TRUE

evaluated 4559 times by 173 tests

Evaluated by:

tst_Gestures
tst_ModelTest
tst_NetworkSelfTest
tst_QAbstractButton
tst_QAbstractItemView
tst_QAbstractNetworkCache
tst_QAbstractScrollArea
tst_QAbstractSlider
tst_QAbstractSpinBox
tst_QAccessibility
tst_QAction
tst_QActionGroup
tst_QApplication
tst_QBackingStore
tst_QBoxLayout
tst_QButtonGroup
tst_QCalendarWidget
tst_QCheckBox
tst_QColorDialog
tst_QColumnView
tst_QComboBox
tst_QCommandLinkButton
tst_QCompleter
tst_QCoreApplication
tst_QDBusAbstractAdaptor
...

FALSE

never evaluated

0-4559

397

if (msec == 0) {

msec == 0

Description

TRUE

evaluated 3312 times by 168 tests

Evaluated by:

tst_Gestures
tst_ModelTest
tst_NetworkSelfTest
tst_QAbstractButton
tst_QAbstractItemView
tst_QAbstractNetworkCache
tst_QAbstractScrollArea
tst_QAbstractSlider
tst_QAbstractSpinBox
tst_QAccessibility
tst_QAction
tst_QActionGroup
tst_QApplication
tst_QBackingStore
tst_QBoxLayout
tst_QButtonGroup
tst_QCalendarWidget
tst_QCheckBox
tst_QColorDialog
tst_QColumnView
tst_QComboBox
tst_QCommandLinkButton
tst_QCompleter
tst_QCoreApplication
tst_QDBusAbstractAdaptor
...

FALSE

evaluated 1247 times by 32 tests

Evaluated by:

tst_QApplication
tst_QColorDialog
tst_QCommandLinkButton
tst_QCoreApplication
tst_QDBusMarshall
tst_QEventLoop
tst_QFontDialog
tst_QFtp
tst_QGraphicsItem
tst_QGraphicsView
tst_QGuiApplication
tst_QGuiEventLoop
tst_QImageReader
tst_QItemDelegate
tst_QMenu
tst_QNetworkReply
tst_QProgressBar
tst_QPushButton
tst_QSignalSpy
tst_QSocks5SocketEngine
tst_QSslSocket
tst_QSystemTrayIcon
tst_QTcpServer
tst_QTcpSocket
tst_QThread
...

1247-3312

398 // special code shortpath for 0-timers -

399 const char* bracketPosition = strchr(member, '('); -

400

if (!bracketPosition || !(member[0] >= '0' && member[0] <= '2')) {

!bracketPosition

Description

TRUE

never evaluated

FALSE

evaluated 3312 times by 168 tests

Evaluated by:

tst_Gestures
tst_ModelTest
tst_NetworkSelfTest
tst_QAbstractButton
tst_QAbstractItemView
tst_QAbstractNetworkCache
tst_QAbstractScrollArea
tst_QAbstractSlider
tst_QAbstractSpinBox
tst_QAccessibility
tst_QAction
tst_QActionGroup
tst_QApplication
tst_QBackingStore
tst_QBoxLayout
tst_QButtonGroup
tst_QCalendarWidget
tst_QCheckBox
tst_QColorDialog
tst_QColumnView
tst_QComboBox
tst_QCommandLinkButton
tst_QCompleter
tst_QCoreApplication
tst_QDBusAbstractAdaptor
...

member[0] >= '0'

Description

TRUE

evaluated 3312 times by 168 tests

Evaluated by:

tst_Gestures
tst_ModelTest
tst_NetworkSelfTest
tst_QAbstractButton
tst_QAbstractItemView
tst_QAbstractNetworkCache
tst_QAbstractScrollArea
tst_QAbstractSlider
tst_QAbstractSpinBox
tst_QAccessibility
tst_QAction
tst_QActionGroup
tst_QApplication
tst_QBackingStore
tst_QBoxLayout
tst_QButtonGroup
tst_QCalendarWidget
tst_QCheckBox
tst_QColorDialog
tst_QColumnView
tst_QComboBox
tst_QCommandLinkButton
tst_QCompleter
tst_QCoreApplication
tst_QDBusAbstractAdaptor
...

FALSE

never evaluated

member[0] <= '2'

Description

TRUE

evaluated 3312 times by 168 tests

Evaluated by:

tst_Gestures
tst_ModelTest
tst_NetworkSelfTest
tst_QAbstractButton
tst_QAbstractItemView
tst_QAbstractNetworkCache
tst_QAbstractScrollArea
tst_QAbstractSlider
tst_QAbstractSpinBox
tst_QAccessibility
tst_QAction
tst_QActionGroup
tst_QApplication
tst_QBackingStore
tst_QBoxLayout
tst_QButtonGroup
tst_QCalendarWidget
tst_QCheckBox
tst_QColorDialog
tst_QColumnView
tst_QComboBox
tst_QCommandLinkButton
tst_QCompleter
tst_QCoreApplication
tst_QDBusAbstractAdaptor
...

FALSE

never evaluated

0-3312

401 qWarning("QTimer::singleShot: Invalid slot specification"); -

402

return;

never executed: return;

403 } -

404 QByteArray methodName(member+1, bracketPosition - 1 - member); // extract method name -

405 QMetaObject::invokeMethod(const_cast<QObject *>(receiver), methodName.constData(), Qt::QueuedConnection); -

406

return;

executed 3312 times by 168 tests: return;

Executed by:

tst_Gestures
tst_ModelTest
tst_NetworkSelfTest
tst_QAbstractButton
tst_QAbstractItemView
tst_QAbstractNetworkCache
tst_QAbstractScrollArea
tst_QAbstractSlider
tst_QAbstractSpinBox
tst_QAccessibility
tst_QAction
tst_QActionGroup
tst_QApplication
tst_QBackingStore
tst_QBoxLayout
tst_QButtonGroup
tst_QCalendarWidget
tst_QCheckBox
tst_QColorDialog
tst_QColumnView
tst_QComboBox
tst_QCommandLinkButton
tst_QCompleter
tst_QCoreApplication
tst_QDBusAbstractAdaptor
...

3312

407 } -

408 (void) new QSingleShotTimer(msec, timerType, receiver, member); -

409

}

executed 1247 times by 32 tests: end of block

Executed by:

tst_QApplication
tst_QColorDialog
tst_QCommandLinkButton
tst_QCoreApplication
tst_QDBusMarshall
tst_QEventLoop
tst_QFontDialog
tst_QFtp
tst_QGraphicsItem
tst_QGraphicsView
tst_QGuiApplication
tst_QGuiEventLoop
tst_QImageReader
tst_QItemDelegate
tst_QMenu
tst_QNetworkReply
tst_QProgressBar
tst_QPushButton
tst_QSignalSpy
tst_QSocks5SocketEngine
tst_QSslSocket
tst_QSystemTrayIcon
tst_QTcpServer
tst_QTcpSocket
tst_QThread
...

1247

410

}

executed 1247 times by 32 tests: end of block

Executed by:

tst_QApplication
tst_QColorDialog
tst_QCommandLinkButton
tst_QCoreApplication
tst_QDBusMarshall
tst_QEventLoop
tst_QFontDialog
tst_QFtp
tst_QGraphicsItem
tst_QGraphicsView
tst_QGuiApplication
tst_QGuiEventLoop
tst_QImageReader
tst_QItemDelegate
tst_QMenu
tst_QNetworkReply
tst_QProgressBar
tst_QPushButton
tst_QSignalSpy
tst_QSocks5SocketEngine
tst_QSslSocket
tst_QSystemTrayIcon
tst_QTcpServer
tst_QTcpSocket
tst_QThread
...

1247

411 -

412 /*!\fn void QTimer::singleShot(int msec, const QObject *receiver, PointerToMemberFunction method) -

413 -

414 \since 5.4 -

415 -

416 \overload -

417 \reentrant -

418 This static function calls a member function of a QObject after a given time interval. -

419 -

420 It is very convenient to use this function because you do not need -

421 to bother with a \l{QObject::timerEvent()}{timerEvent} or -

422 create a local QTimer object. -

423 -

424 The \a receiver is the receiving object and the \a method is the member function. The -

425 time interval is \a msec milliseconds. -

426 -

427 If \a receiver is destroyed before the interval occurs, the method will not be called. -

428 The function will be run in the thread of \a receiver. The receiver's thread must have -

429 a running Qt event loop. -

430 -

431 \sa start() -

432 */ -

433 -

434 /*!\fn void QTimer::singleShot(int msec, Qt::TimerType timerType, const QObject *receiver, PointerToMemberFunction method) -

435 -

436 \since 5.4 -

437 -

438 \overload -

439 \reentrant -

440 This static function calls a member function of a QObject after a given time interval. -

441 -

442 It is very convenient to use this function because you do not need -

443 to bother with a \l{QObject::timerEvent()}{timerEvent} or -

444 create a local QTimer object. -

445 -

446 The \a receiver is the receiving object and the \a method is the member function. The -

447 time interval is \a msec milliseconds. The \a timerType affects the -

448 accuracy of the timer. -

449 -

450 If \a receiver is destroyed before the interval occurs, the method will not be called. -

451 The function will be run in the thread of \a receiver. The receiver's thread must have -

452 a running Qt event loop. -

453 -

454 \sa start() -

455 */ -

456 -

457 /*!\fn void QTimer::singleShot(int msec, Functor functor) -

458 -

459 \since 5.4 -

460 -

461 \overload -

462 \reentrant -

463 This static function calls \a functor after a given time interval. -

464 -

465 It is very convenient to use this function because you do not need -

466 to bother with a \l{QObject::timerEvent()}{timerEvent} or -

467 create a local QTimer object. -

468 -

469 The time interval is \a msec milliseconds. -

470 -

471 \sa start() -

472 */ -

473 -

474 /*!\fn void QTimer::singleShot(int msec, Qt::TimerType timerType, Functor functor) -

475 -

476 \since 5.4 -

477 -

478 \overload -

479 \reentrant -

480 This static function calls \a functor after a given time interval. -

481 -

482 It is very convenient to use this function because you do not need -

483 to bother with a \l{QObject::timerEvent()}{timerEvent} or -

484 create a local QTimer object. -

485 -

486 The time interval is \a msec milliseconds. The \a timerType affects the -

487 accuracy of the timer. -

488 -

489 \sa start() -

490 */ -

491 -

492 /*!\fn void QTimer::singleShot(int msec, const QObject *context, Functor functor) -

493 -

494 \since 5.4 -

495 -

496 \overload -

497 \reentrant -

498 This static function calls \a functor after a given time interval. -

499 -

500 It is very convenient to use this function because you do not need -

501 to bother with a \l{QObject::timerEvent()}{timerEvent} or -

502 create a local QTimer object. -

503 -

504 The time interval is \a msec milliseconds. -

505 -

506 If \a context is destroyed before the interval occurs, the method will not be called. -

507 The function will be run in the thread of \a context. The context's thread must have -

508 a running Qt event loop. -

509 -

510 \sa start() -

511 */ -

512 -

513 /*!\fn void QTimer::singleShot(int msec, Qt::TimerType timerType, const QObject *context, Functor functor) -

514 -

515 \since 5.4 -

516 -

517 \overload -

518 \reentrant -

519 This static function calls \a functor after a given time interval. -

520 -

521 It is very convenient to use this function because you do not need -

522 to bother with a \l{QObject::timerEvent()}{timerEvent} or -

523 create a local QTimer object. -

524 -

525 The time interval is \a msec milliseconds. The \a timerType affects the -

526 accuracy of the timer. -

527 -

528 If \a context is destroyed before the interval occurs, the method will not be called. -

529 The function will be run in the thread of \a context. The context's thread must have -

530 a running Qt event loop. -

531 -

532 \sa start() -

533 */ -

534 -

535 /*! -

536 \property QTimer::singleShot -

537 \brief whether the timer is a single-shot timer -

538 -

539 A single-shot timer fires only once, non-single-shot timers fire -

540 every \l interval milliseconds. -

541 -

542 The default value for this property is \c false. -

543 -

544 \sa interval, singleShot() -

545 */ -

546 -

547 /*! -

548 \property QTimer::interval -

549 \brief the timeout interval in milliseconds -

550 -

551 The default value for this property is 0. A QTimer with a timeout -

552 interval of 0 will time out as soon as all the events in the window -

553 system's event queue have been processed. -

554 -

555 Setting the interval of an active timer changes its timerId(). -

556 -

557 \sa singleShot -

558 */ -

559 void QTimer::setInterval(int msec) -

560 { -

561 inter = msec; -

562

if (id != INV_TIMER) { // create new timer

id != INV_TIMER

Description

TRUE

never evaluated

FALSE

evaluated 71 times by 34 tests

Evaluated by:

tst_NetworkSelfTest
tst_QAbstractNetworkCache
tst_QApplication
tst_QEventLoop
tst_QFileDialog2
tst_QFiledialog
tst_QFontDialog
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiApplication
tst_QGuiEventLoop
tst_QHostInfo
tst_QHttpNetworkConnection
tst_QMenu
tst_QNetworkAccessManager
tst_QNetworkAccessManager_And_QProgressDialog
tst_QNetworkConfiguration
tst_QNetworkConfigurationManager
tst_QNetworkDiskCache
tst_QNetworkInterface
tst_QNetworkProxyFactory
tst_QNetworkReply
tst_QNetworkSession
tst_QObject
tst_QSocketNotifier
...

0-71

563 QObject::killTimer(id); // restart timer -

564 id = QObject::startTimer(msec, Qt::TimerType(type)); -

565

}

never executed: end of block

566

}

executed 71 times by 34 tests: end of block

Executed by:

tst_NetworkSelfTest
tst_QAbstractNetworkCache
tst_QApplication
tst_QEventLoop
tst_QFileDialog2
tst_QFiledialog
tst_QFontDialog
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiApplication
tst_QGuiEventLoop
tst_QHostInfo
tst_QHttpNetworkConnection
tst_QMenu
tst_QNetworkAccessManager
tst_QNetworkAccessManager_And_QProgressDialog
tst_QNetworkConfiguration
tst_QNetworkConfigurationManager
tst_QNetworkDiskCache
tst_QNetworkInterface
tst_QNetworkProxyFactory
tst_QNetworkReply
tst_QNetworkSession
tst_QObject
tst_QSocketNotifier
...

567 -

568 /*! -

569 \property QTimer::remainingTime -

570 \since 5.0 -

571 \brief the remaining time in milliseconds -

572 -

573 Returns the timer's remaining value in milliseconds left until the timeout. -

574 If the timer is inactive, the returned value will be -1. If the timer is -

575 overdue, the returned value will be 0. -

576 -

577 \sa interval -

578 */ -

579 int QTimer::remainingTime() const -

580 { -

581

if (id != INV_TIMER) {

id != INV_TIMER	Description
TRUE	evaluated 4 times by 1 test Evaluated by: tst_QTimer
FALSE	evaluated 4 times by 1 test Evaluated by: tst_QTimer

582

return QAbstractEventDispatcher::instance()->remainingTime(id);

executed 4 times by 1 test: return QAbstractEventDispatcher::instance()->remainingTime(id);

Executed by:

tst_QTimer

583 } -

584 -

585

return -1;

executed 4 times by 1 test: return -1;

Executed by:

tst_QTimer

586 } -

587 -

588 /*! -

589 \property QTimer::timerType -

590 \brief controls the accuracy of the timer -

591 -

592 The default value for this property is \c Qt::CoarseTimer. -

593 -

594 \sa Qt::TimerType -

595 */ -

596 -

597 QT_END_NAMESPACE -

598 -

599 #include "qtimer.moc" -

Source code

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