qpluginloader.cpp

Absolute File Name:

/home/qt/qt5_coco/qt5/qtbase/src/corelib/plugin/qpluginloader.cpp

Source code

Switch to Preprocessed file

Line Source Count

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

2 ** -

4 ** Contact: http://www.qt.io/licensing/ -

5 ** -

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

7 ** -

8 ** $QT_BEGIN_LICENSE:LGPL21$ -

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 ** $QT_END_LICENSE$ -

31 ** -

32 ****************************************************************************/ -

33 -

34 #include "qplatformdefs.h" -

35 -

36 #include "qplugin.h" -

37 #include "qcoreapplication.h" -

38 #include "qpluginloader.h" -

39 #include <qfileinfo.h> -

40 #include "qlibrary_p.h" -

41 #include "qdebug.h" -

42 #include "qdir.h" -

43 -

44 #ifndef QT_NO_LIBRARY -

45 -

46 QT_BEGIN_NAMESPACE -

47 -

48 /*! -

49 \class QPluginLoader -

50 \inmodule QtCore -

51 \reentrant -

52 \brief The QPluginLoader class loads a plugin at run-time. -

53 -

54 -

55 \ingroup plugins -

56 -

57 QPluginLoader provides access to a \l{How to Create Qt -

58 Plugins}{Qt plugin}. A Qt plugin is stored in a shared library (a -

59 DLL) and offers these benefits over shared libraries accessed -

60 using QLibrary: -

61 -

62 \list -

63 \li QPluginLoader checks that a plugin is linked against the same -

64 version of Qt as the application. -

65 \li QPluginLoader provides direct access to a root component object -

66 (instance()), instead of forcing you to resolve a C function manually. -

67 \endlist -

68 -

69 An instance of a QPluginLoader object operates on a single shared -

70 library file, which we call a plugin. It provides access to the -

71 functionality in the plugin in a platform-independent way. To -

72 specify which plugin to load, either pass a file name in -

73 the constructor or set it with setFileName(). -

74 -

75 The most important functions are load() to dynamically load the -

76 plugin file, isLoaded() to check whether loading was successful, -

77 and instance() to access the root component in the plugin. The -

78 instance() function implicitly tries to load the plugin if it has -

79 not been loaded yet. Multiple instances of QPluginLoader can be -

80 used to access the same physical plugin. -

81 -

82 Once loaded, plugins remain in memory until all instances of -

83 QPluginLoader has been unloaded, or until the application -

84 terminates. You can attempt to unload a plugin using unload(), -

85 but if other instances of QPluginLoader are using the same -

86 library, the call will fail, and unloading will only happen when -

87 every instance has called unload(). Right before the unloading -

88 happen, the root component will also be deleted. -

89 -

90 See \l{How to Create Qt Plugins} for more information about -

91 how to make your application extensible through plugins. -

92 -

93 Note that the QPluginLoader cannot be used if your application is -

94 statically linked against Qt. In this case, you will also have to -

95 link to plugins statically. You can use QLibrary if you need to -

96 load dynamic libraries in a statically linked application. -

97 -

98 \sa QLibrary, {Plug & Paint Example} -

99 */ -

100 -

101 /*! -

102 \class QStaticPlugin -

103 \inmodule QtCore -

104 \since 5.2 -

105 -

106 \brief QStaticPlugin is a struct containing a reference to a -

107 static plugin instance together with its meta data. -

108 -

109 \sa QPluginLoader, {How to Create Qt Plugins} -

110 */ -

111 -

112 /*! -

113 \fn QObject *QStaticPlugin::instance() -

114 -

115 Returns the plugin instance. -

116 -

117 \sa QPluginLoader::staticInstances() -

118 */ -

119 -

120 /*! -

121 \fn const char *QStaticPlugin::rawMetaData() -

122 -

123 Returns the raw meta data for the plugin. -

124 -

125 \sa metaData(), Q_PLUGIN_METADATA() -

126 */ -

127 -

128 /*! -

129 Constructs a plugin loader with the given \a parent. -

130 */ -

131 QPluginLoader::QPluginLoader(QObject *parent) -

132 : QObject(parent), d(0), did_load(false) -

133 { -

134

}

executed 7 times by 1 test: end of block

Executed by:

tst_QPluginLoader

135 -

136 /*! -

137 Constructs a plugin loader with the given \a parent that will -

138 load the plugin specified by \a fileName. -

139 -

140 To be loadable, the file's suffix must be a valid suffix for a -

141 loadable library in accordance with the platform, e.g. \c .so on -

142 Unix, - \c .dylib on \macos and iOS, and \c .dll on Windows. The suffix -

143 can be verified with QLibrary::isLibrary(). -

144 -

145 \sa setFileName() -

146 */ -

147 QPluginLoader::QPluginLoader(const QString &fileName, QObject *parent) -

148 : QObject(parent), d(0), did_load(false) -

149 { -

150 setFileName(fileName); -

151 setLoadHints(QLibrary::PreventUnloadHint); -

152

}

executed 21 times by 2 tests: end of block

Executed by:

tst_QPlugin
tst_QPluginLoader

153 -

154 /*! -

155 Destroys the QPluginLoader object. -

156 -

157 Unless unload() was called explicitly, the plugin stays in memory -

158 until the application terminates. -

159 -

160 \sa isLoaded(), unload() -

161 */ -

162 QPluginLoader::~QPluginLoader() -

163 { -

164

if (d)

d	Description
TRUE	evaluated 27 times by 2 tests Evaluated by: tst_QPlugin tst_QPluginLoader
FALSE	evaluated 1 time by 1 test Evaluated by: tst_QPluginLoader

1-27

165

d->release();

executed 27 times by 2 tests: d->release();

Executed by:

tst_QPlugin
tst_QPluginLoader

166

}

executed 28 times by 2 tests: end of block

Executed by:

tst_QPlugin
tst_QPluginLoader

167 -

168 /*! -

169 Returns the root component object of the plugin. The plugin is -

170 loaded if necessary. The function returns 0 if the plugin could -

171 not be loaded or if the root component object could not be -

172 instantiated. -

173 -

174 If the root component object was destroyed, calling this function -

175 creates a new instance. -

176 -

177 The root component, returned by this function, is not deleted when -

178 the QPluginLoader is destroyed. If you want to ensure that the root -

179 component is deleted, you should call unload() as soon you don't -

180 need to access the core component anymore. When the library is -

181 finally unloaded, the root component will automatically be deleted. -

182 -

183 The component object is a QObject. Use qobject_cast() to access -

184 interfaces you are interested in. -

185 -

186 \sa load() -

187 */ -

188 QObject *QPluginLoader::instance() -

189 { -

190

if (!isLoaded() && !load())

!isLoaded()	Description
TRUE	evaluated 5 times by 1 test Evaluated by: tst_QPluginLoader
FALSE	evaluated 16 times by 2 tests Evaluated by: tst_QPlugin tst_QPluginLoader

!load()	Description
TRUE	evaluated 4 times by 1 test Evaluated by: tst_QPluginLoader
FALSE	evaluated 1 time by 1 test Evaluated by: tst_QPluginLoader

1-16

191

return 0;

executed 4 times by 1 test: return 0;

Executed by:

tst_QPluginLoader

192

if (!d->inst && d->instance)

!d->inst	Description
TRUE	evaluated 9 times by 2 tests Evaluated by: tst_QPlugin tst_QPluginLoader
FALSE	evaluated 8 times by 1 test Evaluated by: tst_QPluginLoader

d->instance	Description
TRUE	evaluated 9 times by 2 tests Evaluated by: tst_QPlugin tst_QPluginLoader
FALSE	never evaluated

0-9

193

d->inst = d->instance();

executed 9 times by 2 tests: d->inst = d->instance();

Executed by:

tst_QPlugin
tst_QPluginLoader

194

return d->inst.data();

executed 17 times by 2 tests: return d->inst.data();

Executed by:

tst_QPlugin
tst_QPluginLoader

195 } -

196 -

197 /*! -

198 Returns the meta data for this plugin. The meta data is data specified -

199 in a json format using the Q_PLUGIN_METADATA() macro when compiling -

200 the plugin. -

201 -

202 The meta data can be queried in a fast and inexpensive way without -

203 actually loading the plugin. This makes it possible to e.g. store -

204 capabilities of the plugin in there, and make the decision whether to -

205 load the plugin dependent on this meta data. -

206 */ -

207 QJsonObject QPluginLoader::metaData() const -

208 { -

209

if (!d)

!d	Description
TRUE	never evaluated
FALSE	never evaluated

210

return QJsonObject();

never executed: return QJsonObject();

211

return d->metaData;

never executed: return d->metaData;

212 } -

213 -

214 /*! -

215 Loads the plugin and returns \c true if the plugin was loaded -

216 successfully; otherwise returns \c false. Since instance() always -

217 calls this function before resolving any symbols it is not -

218 necessary to call it explicitly. In some situations you might want -

219 the plugin loaded in advance, in which case you would use this -

220 function. -

221 -

222 \sa unload() -

223 */ -

224 bool QPluginLoader::load() -

225 { -

226

if (!d || d->fileName.isEmpty())

!d	Description
TRUE	evaluated 2 times by 1 test Evaluated by: tst_QPluginLoader
FALSE	evaluated 27 times by 2 tests Evaluated by: tst_QPlugin tst_QPluginLoader

d->fileName.isEmpty()	Description
TRUE	evaluated 4 times by 1 test Evaluated by: tst_QPluginLoader
FALSE	evaluated 23 times by 2 tests Evaluated by: tst_QPlugin tst_QPluginLoader

2-27

227

return false;

executed 6 times by 1 test: return false;

Executed by:

tst_QPluginLoader

228

if (did_load)

did_load	Description
TRUE	never evaluated
FALSE	evaluated 23 times by 2 tests Evaluated by: tst_QPlugin tst_QPluginLoader

0-23

229

return d->pHnd && d->instance;

never executed: return d->pHnd && d->instance;

d->pHnd	Description
TRUE	never evaluated
FALSE	never evaluated

d->instance	Description
TRUE	never evaluated
FALSE	never evaluated

230

if (!d->isPlugin())

!d->isPlugin()	Description
TRUE	evaluated 12 times by 1 test Evaluated by: tst_QPluginLoader
FALSE	evaluated 11 times by 2 tests Evaluated by: tst_QPlugin tst_QPluginLoader

11-12

231

return false;

executed 12 times by 1 test: return false;

Executed by:

tst_QPluginLoader

232 did_load = true; -

233

return d->loadPlugin();

executed 11 times by 2 tests: return d->loadPlugin();

Executed by:

tst_QPlugin
tst_QPluginLoader

234 } -

235 -

236 -

237 /*! -

238 Unloads the plugin and returns \c true if the plugin could be -

239 unloaded; otherwise returns \c false. -

240 -

241 This happens automatically on application termination, so you -

242 shouldn't normally need to call this function. -

243 -

244 If other instances of QPluginLoader are using the same plugin, the -

245 call will fail, and unloading will only happen when every instance -

246 has called unload(). -

247 -

248 Don't try to delete the root component. Instead rely on -

249 that unload() will automatically delete it when needed. -

250 -

251 \sa instance(), load() -

252 */ -

253 bool QPluginLoader::unload() -

254 { -

255

if (did_load) {

did_load	Description
TRUE	evaluated 9 times by 1 test Evaluated by: tst_QPluginLoader
FALSE	evaluated 4 times by 1 test Evaluated by: tst_QPluginLoader

4-9

256 did_load = false; -

257

return d->unload();

executed 9 times by 1 test: return d->unload();

Executed by:

tst_QPluginLoader

258 } -

259

if (d) // Ouch

d	Description
TRUE	evaluated 3 times by 1 test Evaluated by: tst_QPluginLoader
FALSE	evaluated 1 time by 1 test Evaluated by: tst_QPluginLoader

1-3

260

d->errorString = tr("The plugin was not loaded.");

executed 3 times by 1 test: d->errorString = tr("The plugin was not loaded.");

Executed by:

tst_QPluginLoader

261

return false;

executed 4 times by 1 test: return false;

Executed by:

tst_QPluginLoader

262 } -

263 -

264 /*! -

265 Returns \c true if the plugin is loaded; otherwise returns \c false. -

266 -

267 \sa load() -

268 */ -

269 bool QPluginLoader::isLoaded() const -

270 { -

271

return d && d->pHnd && d->instance;

executed 22 times by 2 tests: return d && d->pHnd && d->instance;

Executed by:

tst_QPlugin
tst_QPluginLoader

d	Description
TRUE	evaluated 21 times by 2 tests Evaluated by: tst_QPlugin tst_QPluginLoader
FALSE	evaluated 1 time by 1 test Evaluated by: tst_QPluginLoader

d->pHnd	Description
TRUE	evaluated 17 times by 2 tests Evaluated by: tst_QPlugin tst_QPluginLoader
FALSE	evaluated 4 times by 1 test Evaluated by: tst_QPluginLoader

d->instance	Description
TRUE	evaluated 17 times by 2 tests Evaluated by: tst_QPlugin tst_QPluginLoader
FALSE	never evaluated

0-22

272 } -

273 -

274 #if defined(QT_SHARED) -

275 static QString locatePlugin(const QString& fileName) -

276 { -

277 const bool isAbsolute = QDir::isAbsolutePath(fileName); -

278

if (isAbsolute) {

isAbsolute	Description
TRUE	evaluated 24 times by 2 tests Evaluated by: tst_QPlugin tst_QPluginLoader
FALSE	evaluated 3 times by 1 test Evaluated by: tst_QPluginLoader

3-24

279 QFileInfo fi(fileName); -

280

if (fi.isFile()) {

fi.isFile()	Description
TRUE	evaluated 23 times by 2 tests Evaluated by: tst_QPlugin tst_QPluginLoader
FALSE	evaluated 1 time by 1 test Evaluated by: tst_QPluginLoader

1-23

281

return fi.canonicalFilePath();

executed 23 times by 2 tests: return fi.canonicalFilePath();

Executed by:

tst_QPlugin
tst_QPluginLoader

282 } -

283

}

executed 1 time by 1 test: end of block

Executed by:

tst_QPluginLoader

284 QStringList prefixes = QLibraryPrivate::prefixes_sys(); -

285 prefixes.prepend(QString()); -

286 QStringList suffixes = QLibraryPrivate::suffixes_sys(QString()); -

287 suffixes.prepend(QString()); -

288 -

289 // Split up "subdir/filename" -

290 const int slash = fileName.lastIndexOf(QLatin1Char('/')); -

291 const QStringRef baseName = fileName.midRef(slash + 1); -

292

const QStringRef basePath = isAbsolute ? QStringRef() : fileName.leftRef(slash + 1); // keep the '/'

isAbsolute	Description
TRUE	evaluated 1 time by 1 test Evaluated by: tst_QPluginLoader
FALSE	evaluated 3 times by 1 test Evaluated by: tst_QPluginLoader

1-3

293 -

294 const bool debug = qt_debug_component(); -

295 -

296 QStringList paths; -

297

if (isAbsolute) {

isAbsolute	Description
TRUE	evaluated 1 time by 1 test Evaluated by: tst_QPluginLoader
FALSE	evaluated 3 times by 1 test Evaluated by: tst_QPluginLoader

1-3

298 paths.append(fileName.left(slash)); // don't include the '/' -

299

} else {

executed 1 time by 1 test: end of block

Executed by:

tst_QPluginLoader

300 paths = QCoreApplication::libraryPaths(); -

301

paths.prepend(QStringLiteral(".")); // search in current dir first

executed 3 times by 1 test: return qstring_literal_temp;

Executed by:

tst_QPluginLoader

302

}

executed 3 times by 1 test: end of block

Executed by:

tst_QPluginLoader

303 -

304 foreach (const QString &path, paths) { -

305 foreach (const QString &prefix, prefixes) { -

306 foreach (const QString &suffix, suffixes) { -

307 const QString fn = path + QLatin1Char('/') + basePath + prefix + baseName + suffix; -

308

if (debug)

debug	Description
TRUE	never evaluated
FALSE	evaluated 36 times by 1 test Evaluated by: tst_QPluginLoader

0-36

309

qDebug() << "Trying..." << fn;

never executed: QMessageLogger(__FILE__, 309, __PRETTY_FUNCTION__).debug() << "Trying..." << fn;

310

if (QFileInfo(fn).isFile())

QFileInfo(fn).isFile()	Description
TRUE	evaluated 2 times by 1 test Evaluated by: tst_QPluginLoader
FALSE	evaluated 34 times by 1 test Evaluated by: tst_QPluginLoader

2-34

311

return fn;

executed 2 times by 1 test: return fn;

Executed by:

tst_QPluginLoader

312

}

executed 34 times by 1 test: end of block

Executed by:

tst_QPluginLoader

313

}

executed 16 times by 1 test: end of block

Executed by:

tst_QPluginLoader

314

}

executed 7 times by 1 test: end of block

Executed by:

tst_QPluginLoader

315

if (debug)

debug	Description
TRUE	never evaluated
FALSE	evaluated 2 times by 1 test Evaluated by: tst_QPluginLoader

0-2

316

qDebug() << fileName << "not found";

never executed: QMessageLogger(__FILE__, 316, __PRETTY_FUNCTION__).debug() << fileName << "not found";

317

return QString();

executed 2 times by 1 test: return QString();

Executed by:

tst_QPluginLoader

318 } -

319 #endif -

320 -

321 /*! -

322 \property QPluginLoader::fileName -

323 \brief the file name of the plugin -

324 -

325 We recommend omitting the file's suffix in the file name, since -

326 QPluginLoader will automatically look for the file with the appropriate -

327 suffix (see QLibrary::isLibrary()). -

328 -

329 When loading the plugin, QPluginLoader searches in the current directory and -

330 in all plugin locations specified by QCoreApplication::libraryPaths(), -

331 unless the file name has an absolute path. After loading the plugin -

332 successfully, fileName() returns the fully-qualified file name of -

333 the plugin, including the full path to the plugin if one was given -

334 in the constructor or passed to setFileName(). -

335 -

336 If the file name does not exist, it will not be set. This property -

337 will then contain an empty string. -

338 -

339 By default, this property contains an empty string. -

340 -

341 \sa load() -

342 */ -

343 void QPluginLoader::setFileName(const QString &fileName) -

344 { -

345 #if defined(QT_SHARED) -

346 QLibrary::LoadHints lh = QLibrary::PreventUnloadHint; -

347

if (d) {

d	Description
TRUE	evaluated 1 time by 1 test Evaluated by: tst_QPluginLoader
FALSE	evaluated 26 times by 2 tests Evaluated by: tst_QPlugin tst_QPluginLoader

1-26

348 lh = d->loadHints(); -

349 d->release(); -

350 d = 0; -

351 did_load = false; -

352

}

executed 1 time by 1 test: end of block

Executed by:

tst_QPluginLoader

353 -

354 const QString fn = locatePlugin(fileName); -

355 -

356 d = QLibraryPrivate::findOrCreate(fn, QString(), lh); -

357

if (!fn.isEmpty())

!fn.isEmpty()	Description
TRUE	evaluated 25 times by 2 tests Evaluated by: tst_QPlugin tst_QPluginLoader
FALSE	evaluated 2 times by 1 test Evaluated by: tst_QPluginLoader

2-25

358

d->updatePluginState();

executed 25 times by 2 tests: d->updatePluginState();

Executed by:

tst_QPlugin
tst_QPluginLoader

359 -

360 #else -

361 if (qt_debug_component()) { -

362 qWarning("Cannot load %s into a statically linked Qt library.", -

363 (const char*)QFile::encodeName(fileName)); -

364 } -

365 Q_UNUSED(fileName); -

366 #endif -

367

}

executed 27 times by 2 tests: end of block

Executed by:

tst_QPlugin
tst_QPluginLoader

368 -

369 QString QPluginLoader::fileName() const -

370 { -

371

if (d)

d	Description
TRUE	never evaluated
FALSE	never evaluated

372

return d->fileName;

never executed: return d->fileName;

373

return QString();

never executed: return QString();

374 } -

375 -

376 /*! -

377 \since 4.2 -

378 -

379 Returns a text string with the description of the last error that occurred. -

380 */ -

381 QString QPluginLoader::errorString() const -

382 { -

383

return (!d || d->errorString.isEmpty()) ? tr("Unknown error") : d->errorString;

executed 26 times by 1 test: return (!d || d->errorString.isEmpty()) ? tr("Unknown error") : d->errorString;

Executed by:

tst_QPluginLoader

!d	Description
TRUE	evaluated 3 times by 1 test Evaluated by: tst_QPluginLoader
FALSE	evaluated 23 times by 1 test Evaluated by: tst_QPluginLoader

d->errorString.isEmpty()	Description
TRUE	evaluated 3 times by 1 test Evaluated by: tst_QPluginLoader
FALSE	evaluated 20 times by 1 test Evaluated by: tst_QPluginLoader

3-26

384 } -

385 -

386 typedef QVector<QStaticPlugin> StaticPluginList; -

387

Q_GLOBAL_STATIC(StaticPluginList, staticPluginList)

executed 267 times by 245 tests: end of block

Executed by:

tst_gestures - unknown status
tst_lancelot - unknown status
tst_languagechange - unknown status
tst_modeltest - unknown status
tst_networkselftest - unknown status
tst_qabstractbutton - unknown status
tst_qabstractitemview - unknown status
tst_qabstractnetworkcache - unknown status
tst_qabstractprintdialog - unknown status
tst_qabstractproxymodel - unknown status
tst_qabstractscrollarea - unknown status
tst_qabstractslider - unknown status
tst_qabstractspinbox - unknown status
tst_qabstracttextdocumentlayout - unknown status
tst_qaccessibility - unknown status
tst_qaction - unknown status
tst_qactiongroup - unknown status
tst_qapplication - unknown status
tst_qbackingstore - unknown status
tst_qboxlayout - unknown status
tst_qbrush - unknown status
tst_qbuttongroup - unknown status
tst_qcalendarwidget - unknown status
tst_qcheckbox - unknown status
tst_qclipboard - unknown status
...

executed 267 times by 245 tests: guard.store(QtGlobalStatic::Destroyed);

Executed by:

tst_gestures - unknown status
tst_lancelot - unknown status
tst_languagechange - unknown status
tst_modeltest - unknown status
tst_networkselftest - unknown status
tst_qabstractbutton - unknown status
tst_qabstractitemview - unknown status
tst_qabstractnetworkcache - unknown status
tst_qabstractprintdialog - unknown status
tst_qabstractproxymodel - unknown status
tst_qabstractscrollarea - unknown status
tst_qabstractslider - unknown status
tst_qabstractspinbox - unknown status
tst_qabstracttextdocumentlayout - unknown status
tst_qaccessibility - unknown status
tst_qaction - unknown status
tst_qactiongroup - unknown status
tst_qapplication - unknown status
tst_qbackingstore - unknown status
tst_qboxlayout - unknown status
tst_qbrush - unknown status
tst_qbuttongroup - unknown status
tst_qcalendarwidget - unknown status
tst_qcheckbox - unknown status
tst_qclipboard - unknown status
...

executed 40167 times by 146 tests: return &holder.value;

Executed by:

tst_Gestures
tst_NetworkSelfTest
tst_QAbstractItemView
tst_QAbstractNetworkCache
tst_QAbstractPrintDialog
tst_QAbstractScrollArea
tst_QAbstractSpinBox
tst_QAccessibility
tst_QAction
tst_QApplication
tst_QBackingStore
tst_QBrush
tst_QButtonGroup
tst_QCalendarWidget
tst_QColorDialog
tst_QColumnView
tst_QComboBox
tst_QCommandLinkButton
tst_QCompleter
tst_QDataStream
tst_QDateTimeEdit
tst_QDialog
tst_QDockWidget
tst_QDoubleSpinBox
tst_QErrorMessage
...

guard.load() =...c::Initialized

Description

TRUE

evaluated 267 times by 245 tests

Evaluated by:

tst_gestures - unknown status
tst_lancelot - unknown status
tst_languagechange - unknown status
tst_modeltest - unknown status
tst_networkselftest - unknown status
tst_qabstractbutton - unknown status
tst_qabstractitemview - unknown status
tst_qabstractnetworkcache - unknown status
tst_qabstractprintdialog - unknown status
tst_qabstractproxymodel - unknown status
tst_qabstractscrollarea - unknown status
tst_qabstractslider - unknown status
tst_qabstractspinbox - unknown status
tst_qabstracttextdocumentlayout - unknown status
tst_qaccessibility - unknown status
tst_qaction - unknown status
tst_qactiongroup - unknown status
tst_qapplication - unknown status
tst_qbackingstore - unknown status
tst_qboxlayout - unknown status
tst_qbrush - unknown status
tst_qbuttongroup - unknown status
tst_qcalendarwidget - unknown status
tst_qcheckbox - unknown status
tst_qclipboard - unknown status
...

FALSE

never evaluated

0-40167

388 -

389 /*! \since 4.4 -

390 -

391 \property QPluginLoader::loadHints -

392 \brief Give the load() function some hints on how it should behave. -

393 -

394 You can give hints on how the symbols in the plugin are -

395 resolved. By default since Qt 5.7, QLibrary::PreventUnloadHint is set. -

396 -

397 See the documentation of QLibrary::loadHints for a complete -

398 description of how this property works. -

399 -

400 \sa QLibrary::loadHints -

401 */ -

402 -

403 void QPluginLoader::setLoadHints(QLibrary::LoadHints loadHints) -

404 { -

405

if (!d) {

!d	Description
TRUE	evaluated 1 time by 1 test Evaluated by: tst_QPluginLoader
FALSE	evaluated 22 times by 2 tests Evaluated by: tst_QPlugin tst_QPluginLoader

1-22

406 d = QLibraryPrivate::findOrCreate(QString()); // ugly, but we need a d-ptr -

407 d->errorString.clear(); -

408

}

executed 1 time by 1 test: end of block

Executed by:

tst_QPluginLoader

409 d->setLoadHints(loadHints); -

410

}

executed 23 times by 2 tests: end of block

Executed by:

tst_QPlugin
tst_QPluginLoader

411 -

412 QLibrary::LoadHints QPluginLoader::loadHints() const -

413 { -

414

return d ? d->loadHints() : QLibrary::LoadHints();

executed 2 times by 1 test: return d ? d->loadHints() : QLibrary::LoadHints();

Executed by:

tst_QPluginLoader

d	Description
TRUE	evaluated 1 time by 1 test Evaluated by: tst_QPluginLoader
FALSE	evaluated 1 time by 1 test Evaluated by: tst_QPluginLoader

1-2

415 } -

416 -

417 /*! -

418 \relates QPluginLoader -

419 \since 5.0 -

420 -

421 Registers the \a plugin specified with the plugin loader, and is used -

422 by Q_IMPORT_PLUGIN(). -

423 */ -

424 void Q_CORE_EXPORT qRegisterStaticPluginFunction(QStaticPlugin plugin) -

425 { -

426 staticPluginList()->append(plugin); -

427

}

executed 1 time by 1 test: end of block

Executed by:

tst_QGuiApplication

428 -

429 /*! -

430 Returns a list of static plugin instances (root components) held -

431 by the plugin loader. -

432 \sa staticPlugins() -

433 */ -

434 QObjectList QPluginLoader::staticInstances() -

435 { -

436 QObjectList instances; -

437 const StaticPluginList *plugins = staticPluginList(); -

438

if (plugins) {

plugins	Description
TRUE	never evaluated
FALSE	never evaluated

439 const int numPlugins = plugins->size(); -

440 instances.reserve(numPlugins); -

441

for (int i = 0; i < numPlugins; ++i)

i < numPlugins	Description
TRUE	never evaluated
FALSE	never evaluated

442

instances += plugins->at(i).instance();

never executed: instances += plugins->at(i).instance();

443

}

never executed: end of block

444

return instances;

never executed: return instances;

445 } -

446 -

447 /*! -

448 Returns a list of QStaticPlugins held by the plugin -

449 loader. The function is similar to \l staticInstances() -

450 with the addition that a QStaticPlugin also contains -

451 meta data information. -

452 \sa staticInstances() -

453 */ -

454 QVector<QStaticPlugin> QPluginLoader::staticPlugins() -

455 { -

456 StaticPluginList *plugins = staticPluginList(); -

457

if (plugins)

plugins

Description

TRUE

evaluated 40166 times by 146 tests

Evaluated by:

tst_Gestures
tst_NetworkSelfTest
tst_QAbstractItemView
tst_QAbstractNetworkCache
tst_QAbstractPrintDialog
tst_QAbstractScrollArea
tst_QAbstractSpinBox
tst_QAccessibility
tst_QAction
tst_QApplication
tst_QBackingStore
tst_QBrush
tst_QButtonGroup
tst_QCalendarWidget
tst_QColorDialog
tst_QColumnView
tst_QComboBox
tst_QCommandLinkButton
tst_QCompleter
tst_QDataStream
tst_QDateTimeEdit
tst_QDialog
tst_QDockWidget
tst_QDoubleSpinBox
tst_QErrorMessage
...

FALSE

never evaluated

0-40166

458

return *plugins;

executed 40166 times by 146 tests: return *plugins;

Executed by:

tst_Gestures
tst_NetworkSelfTest
tst_QAbstractItemView
tst_QAbstractNetworkCache
tst_QAbstractPrintDialog
tst_QAbstractScrollArea
tst_QAbstractSpinBox
tst_QAccessibility
tst_QAction
tst_QApplication
tst_QBackingStore
tst_QBrush
tst_QButtonGroup
tst_QCalendarWidget
tst_QColorDialog
tst_QColumnView
tst_QComboBox
tst_QCommandLinkButton
tst_QCompleter
tst_QDataStream
tst_QDateTimeEdit
tst_QDialog
tst_QDockWidget
tst_QDoubleSpinBox
tst_QErrorMessage
...

40166

459

return QVector<QStaticPlugin>();

never executed: return QVector<QStaticPlugin>();

460 } -

461 -

462 /*! -

463 Returns a the meta data for the plugin as a QJsonObject. -

464 -

465 \sa rawMetaData() -

466 */ -

467 QJsonObject QStaticPlugin::metaData() const -

468 { -

469

return QLibraryPrivate::fromRawMetaData(rawMetaData()).object();

executed 26 times by 1 test: return QLibraryPrivate::fromRawMetaData(rawMetaData()).object();

Executed by:

tst_QGuiApplication

470 } -

471 -

472 QT_END_NAMESPACE -

473 -

474 #endif // QT_NO_LIBRARY -

Source code

Switch to Preprocessed file

Generated by Squish Coco Non-Commercial 4.3.0-BETA-master-30-08-2018-4cb69e9