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qpluginloader.cpp

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38 ****************************************************************************/ -

39 -

40 #include "qplatformdefs.h" -

41 -

42 #include "qplugin.h" -

43 #include "qcoreapplication.h" -

44 #include "qpluginloader.h" -

45 #include <qfileinfo.h> -

46 #include "qlibrary_p.h" -

47 #include "qdebug.h" -

48 #include "qdir.h" -

49 -

50 QT_BEGIN_NAMESPACE -

51 -

52 #ifndef QT_NO_LIBRARY -

53 -

54 /*! -

55 \class QPluginLoader -

56 \inmodule QtCore -

57 \reentrant -

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

59 -

60 -

61 \ingroup plugins -

62 -

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

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

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

66 using QLibrary: -

67 -

68 \list -

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

70 version of Qt as the application. -

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

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

73 \endlist -

74 -

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

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

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

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

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

80 -

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

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

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

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

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

86 used to access the same physical plugin. -

87 -

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

89 QPluginLoader has been unloaded, or until the application -

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

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

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

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

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

95 -

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

97 how to make your application extensible through plugins. -

98 -

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

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

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

102 load dynamic libraries in a statically linked application. -

103 -

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

105 */ -

106 -

107 /*! -

108 \class QStaticPlugin -

109 \inmodule QtCore -

110 \since 5.2 -

111 -

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

113 static plugin instance together with its meta data. -

114 -

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

116 */ -

117 -

118 /*! -

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

120 -

121 Returns the plugin instance. -

122 -

123 \sa QPluginLoader::staticInstances() -

124 */ -

125 -

126 /*! -

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

128 -

129 Returns the raw meta data for the plugin. -

130 -

131 \sa metaData(), Q_PLUGIN_METADATA() -

132 */ -

133 -

134 /*! -

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

136 */ -

137 QPluginLoader::QPluginLoader(QObject *parent) -

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

139 { -

140

}

executed 7 times by 1 test: end of block

Executed by:

tst_QPluginLoader

141 -

142 /*! -

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

144 load the plugin specified by \a fileName. -

145 -

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

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

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

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

150 -

151 \sa setFileName() -

152 */ -

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

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

155 { -

156 setFileName(fileName); -

157 setLoadHints(QLibrary::PreventUnloadHint); -

158

}

executed 21 times by 2 tests: end of block

Executed by:

tst_QPlugin
tst_QPluginLoader

159 -

160 /*! -

161 Destroys the QPluginLoader object. -

162 -

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

164 until the application terminates. -

165 -

166 \sa isLoaded(), unload() -

167 */ -

168 QPluginLoader::~QPluginLoader() -

169 { -

170

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

171

d->release();

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

Executed by:

tst_QPlugin
tst_QPluginLoader

172

}

executed 28 times by 2 tests: end of block

Executed by:

tst_QPlugin
tst_QPluginLoader

173 -

174 /*! -

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

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

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

178 instantiated. -

179 -

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

181 creates a new instance. -

182 -

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

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

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

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

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

188 -

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

190 interfaces you are interested in. -

191 -

192 \sa load() -

193 */ -

194 QObject *QPluginLoader::instance() -

195 { -

196

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

197

return 0;

executed 4 times by 1 test: return 0;

Executed by:

tst_QPluginLoader

198

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

199

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

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

Executed by:

tst_QPlugin
tst_QPluginLoader

200

return d->inst.data();

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

Executed by:

tst_QPlugin
tst_QPluginLoader

201 } -

202 -

203 /*! -

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

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

206 the plugin. -

207 -

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

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

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

211 load the plugin dependent on this meta data. -

212 */ -

213 QJsonObject QPluginLoader::metaData() const -

214 { -

215

if (!d)

!d	Description
TRUE	never evaluated
FALSE	never evaluated

216

return QJsonObject();

never executed: return QJsonObject();

217

return d->metaData;

never executed: return d->metaData;

218 } -

219 -

220 /*! -

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

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

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

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

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

226 function. -

227 -

228 \sa unload() -

229 */ -

230 bool QPluginLoader::load() -

231 { -

232

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

233

return false;

executed 6 times by 1 test: return false;

Executed by:

tst_QPluginLoader

234

if (did_load)

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

0-23

235

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

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

236

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

237

return false;

executed 12 times by 1 test: return false;

Executed by:

tst_QPluginLoader

238 did_load = true; -

239

return d->loadPlugin();

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

Executed by:

tst_QPlugin
tst_QPluginLoader

240 } -

241 -

242 -

243 /*! -

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

245 unloaded; otherwise returns \c false. -

246 -

247 This happens automatically on application termination, so you -

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

249 -

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

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

252 has called unload(). -

253 -

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

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

256 -

257 \sa instance(), load() -

258 */ -

259 bool QPluginLoader::unload() -

260 { -

261

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

262 did_load = false; -

263

return d->unload();

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

Executed by:

tst_QPluginLoader

264 } -

265

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

266

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

267

return false;

executed 4 times by 1 test: return false;

Executed by:

tst_QPluginLoader

268 } -

269 -

270 /*! -

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

272 -

273 \sa load() -

274 */ -

275 bool QPluginLoader::isLoaded() const -

276 { -

277

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

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

Executed by:

tst_QPlugin
tst_QPluginLoader

278 } -

279 -

280 #if defined(QT_SHARED) -

281 static QString locatePlugin(const QString& fileName) -

282 { -

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

284

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

285 QFileInfo fi(fileName); -

286

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

287

return fi.canonicalFilePath();

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

Executed by:

tst_QPlugin
tst_QPluginLoader

288 } -

289

}

executed 1 time by 1 test: end of block

Executed by:

tst_QPluginLoader

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

291 prefixes.prepend(QString()); -

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

293 suffixes.prepend(QString()); -

294 -

295 // Split up "subdir/filename" -

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

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

298

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

299 -

300 const bool debug = qt_debug_component(); -

301 -

302 QStringList paths; -

303

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

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

305

} else {

executed 1 time by 1 test: end of block

Executed by:

tst_QPluginLoader

306 paths = QCoreApplication::libraryPaths(); -

307

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

executed 3 times by 1 test: return qstring_literal_temp;

Executed by:

tst_QPluginLoader

308

}

executed 3 times by 1 test: end of block

Executed by:

tst_QPluginLoader

309 -

310 for (const QString &path : qAsConst(paths)) { -

311 for (const QString &prefix : qAsConst(prefixes)) { -

312 for (const QString &suffix : qAsConst(suffixes)) { -

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

314

if (debug)

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

0-36

315

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

never executed: QMessageLogger(__FILE__, 315, __PRETTY_FUNCTION__).debug() << "Trying..." << fn;

316

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

317

return fn;

executed 2 times by 1 test: return fn;

Executed by:

tst_QPluginLoader

318

}

executed 34 times by 1 test: end of block

Executed by:

tst_QPluginLoader

319

}

executed 16 times by 1 test: end of block

Executed by:

tst_QPluginLoader

320

}

executed 7 times by 1 test: end of block

Executed by:

tst_QPluginLoader

321

if (debug)

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

0-2

322

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

never executed: QMessageLogger(__FILE__, 322, __PRETTY_FUNCTION__).debug() << fileName << "not found";

323

return QString();

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

Executed by:

tst_QPluginLoader

324 } -

325 #endif -

326 -

327 /*! -

328 \property QPluginLoader::fileName -

329 \brief the file name of the plugin -

330 -

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

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

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

334 -

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

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

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

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

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

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

341 -

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

343 will then contain an empty string. -

344 -

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

346 -

347 \sa load() -

348 */ -

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

350 { -

351 #if defined(QT_SHARED) -

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

353

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

354 lh = d->loadHints(); -

355 d->release(); -

356 d = 0; -

357 did_load = false; -

358

}

executed 1 time by 1 test: end of block

Executed by:

tst_QPluginLoader

359 -

360 const QString fn = locatePlugin(fileName); -

361 -

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

363

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

364

d->updatePluginState();

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

Executed by:

tst_QPlugin
tst_QPluginLoader

365 -

366 #else -

367 if (qt_debug_component()) { -

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

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

370 } -

371 Q_UNUSED(fileName); -

372 #endif -

373

}

executed 27 times by 2 tests: end of block

Executed by:

tst_QPlugin
tst_QPluginLoader

374 -

375 QString QPluginLoader::fileName() const -

376 { -

377

if (d)

d	Description
TRUE	never evaluated
FALSE	never evaluated

378

return d->fileName;

never executed: return d->fileName;

379

return QString();

never executed: return QString();

380 } -

381 -

382 /*! -

383 \since 4.2 -

384 -

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

386 */ -

387 QString QPluginLoader::errorString() const -

388 { -

389

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

390 } -

391 -

392 /*! \since 4.4 -

393 -

394 \property QPluginLoader::loadHints -

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

396 -

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

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

399 -

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

401 description of how this property works. -

402 -

403 \sa QLibrary::loadHints -

404 */ -

405 -

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

407 { -

408

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

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

410 d->errorString.clear(); -

411

}

executed 1 time by 1 test: end of block

Executed by:

tst_QPluginLoader

412 d->setLoadHints(loadHints); -

413

}

executed 23 times by 2 tests: end of block

Executed by:

tst_QPlugin
tst_QPluginLoader

414 -

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

416 { -

417

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

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

Executed by:

tst_QPluginLoader

418 } -

419 -

420 #endif // QT_NO_LIBRARY -

421 -

422 typedef QVector<QStaticPlugin> StaticPluginList; -

423

Q_GLOBAL_STATIC(StaticPluginList, staticPluginList)

executed 270 times by 244 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 270 times by 244 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 42699 times by 147 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 270 times by 244 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

0-42699

424 -

425 /*! -

426 \relates QPluginLoader -

427 \since 5.0 -

428 -

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

430 by Q_IMPORT_PLUGIN(). -

431 */ -

432 void Q_CORE_EXPORT qRegisterStaticPluginFunction(QStaticPlugin plugin) -

433 { -

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

435

}

executed 1 time by 1 test: end of block

Executed by:

tst_QGuiApplication

436 -

437 /*! -

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

439 by the plugin loader. -

440 \sa staticPlugins() -

441 */ -

442 QObjectList QPluginLoader::staticInstances() -

443 { -

444 QObjectList instances; -

445 const StaticPluginList *plugins = staticPluginList(); -

446

if (plugins) {

plugins	Description
TRUE	never evaluated
FALSE	never evaluated

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

448 instances.reserve(numPlugins); -

449

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

i < numPlugins	Description
TRUE	never evaluated
FALSE	never evaluated

450

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

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

451

}

never executed: end of block

452

return instances;

never executed: return instances;

453 } -

454 -

455 /*! -

456 Returns a list of QStaticPlugins held by the plugin -

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

458 with the addition that a QStaticPlugin also contains -

459 meta data information. -

460 \sa staticInstances() -

461 */ -

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

463 { -

464 StaticPluginList *plugins = staticPluginList(); -

465

if (plugins)

plugins

Description

TRUE

evaluated 42698 times by 147 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

0-42698

466

return *plugins;

executed 42698 times by 147 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
...

42698

467

return QVector<QStaticPlugin>();

never executed: return QVector<QStaticPlugin>();

468 } -

469 -

470 /*! -

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

472 -

473 \sa rawMetaData() -

474 */ -

475 QJsonObject QStaticPlugin::metaData() const -

476 { -

477

return qJsonFromRawLibraryMetaData(rawMetaData()).object();

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

Executed by:

tst_QGuiApplication

478 } -

479 -

480 QT_END_NAMESPACE -

481 -

Source code

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