qbuffer.cpp

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

2 ** -

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

5 ** -

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

7 ** -

8 ** $QT_BEGIN_LICENSE:LGPL$ -

9 ** Commercial License Usage -

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

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

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

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

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

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

16 ** -

17 ** GNU Lesser General Public License Usage -

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

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

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

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

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

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

24 ** -

25 ** GNU General Public License Usage -

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

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

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

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

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

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

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

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

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

35 ** -

36 ** $QT_END_LICENSE$ -

37 ** -

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

39 -

40 #include "qbuffer.h" -

41 #include <QtCore/qmetaobject.h> -

42 #include "private/qiodevice_p.h" -

43 -

44 QT_BEGIN_NAMESPACE -

45 -

46 /** QBufferPrivate **/ -

47 class QBufferPrivate : public QIODevicePrivate -

48 { -

49 Q_DECLARE_PUBLIC(QBuffer) -

50 -

51 public: -

52 QBufferPrivate() -

53 : buf(0) -

54 #ifndef QT_NO_QOBJECT -

55 , writtenSinceLastEmit(0), signalConnectionCount(0), signalsEmitted(false) -

56 #endif -

{ }

executed 11235 times by 81 tests: end of block

Executed by:

tst_QAbstractItemModel
tst_QAbstractNetworkCache
tst_QAsn1Element
tst_QAuthenticator
tst_QBitArray
tst_QBrush
tst_QBuffer
tst_QDataStream
tst_QDate
tst_QDateTime
tst_QDockWidget
tst_QFileDialog2
tst_QFiledialog
tst_QFont
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiVariant
tst_QHeaderView
tst_QHostAddress
tst_QHttpNetworkReply
tst_QIODevice
tst_QIcoImageFormat
tst_QIcon
tst_QImage
tst_QImageReader
...

11235

58 ~QBufferPrivate() { } -

59 -

60 QByteArray *buf; -

61 QByteArray defaultBuf; -

62 -

63 virtual qint64 peek(char *data, qint64 maxSize) Q_DECL_OVERRIDE; -

64 virtual QByteArray peek(qint64 maxSize) Q_DECL_OVERRIDE; -

65 -

66 #ifndef QT_NO_QOBJECT -

67 // private slots -

68 void _q_emitSignals(); -

69 -

70 qint64 writtenSinceLastEmit; -

71 int signalConnectionCount; -

72 bool signalsEmitted; -

73 #endif -

74 }; -

75 -

76 #ifndef QT_NO_QOBJECT -

77 void QBufferPrivate::_q_emitSignals() -

78 { -

79 Q_Q(QBuffer); -

80 emit q->bytesWritten(writtenSinceLastEmit); -

81 writtenSinceLastEmit = 0; -

82 emit q->readyRead(); -

83 signalsEmitted = false; -

}

executed 30 times by 1 test: end of block

Executed by:

tst_QBuffer

85 #endif -

86 -

87 qint64 QBufferPrivate::peek(char *data, qint64 maxSize) -

88 { -

89 qint64 readBytes = qMin(maxSize, static_cast<qint64>(buf->size()) - pos); -

90 memcpy(data, buf->constData() + pos, readBytes); -

return readBytes;

Executed by:

tst_QBrush
tst_QDataStream
tst_QGuiVariant
tst_QIODevice
tst_QIcoImageFormat
tst_QIcon
tst_QImage
tst_QImageReader
tst_QPixmap
tst_QTextDocument
tst_QTextDocumentFragment
tst_QTextEdit

1423

92 } -

93 -

94 QByteArray QBufferPrivate::peek(qint64 maxSize) -

95 { -

96 qint64 readBytes = qMin(maxSize, static_cast<qint64>(buf->size()) - pos); -

if (pos == 0 && maxSize >= buf->size())

pos == 0	Description
TRUE	evaluated 115 times by 10 tests Evaluated by: tst_QIODevice tst_QIcoImageFormat tst_QIcon tst_QImage tst_QImageReader tst_QMimeDatabase tst_QPixmap tst_QTextDocument tst_QTextDocumentFragment tst_QTextEdit
FALSE	evaluated 100 times by 8 tests Evaluated by: tst_QBrush tst_QDataStream tst_QGuiVariant tst_QIODevice tst_QIcon tst_QImage tst_QImageReader tst_QPixmap

maxSize >= buf->size()	Description
TRUE	evaluated 42 times by 3 tests Evaluated by: tst_QIODevice tst_QImage tst_QMimeDatabase
FALSE	evaluated 73 times by 7 tests Evaluated by: tst_QIcoImageFormat tst_QIcon tst_QImageReader tst_QPixmap tst_QTextDocument tst_QTextDocumentFragment tst_QTextEdit

42-115

return *buf;

executed 42 times by 3 tests: return *buf;

Executed by:

tst_QIODevice
tst_QImage
tst_QMimeDatabase

return QByteArray(buf->constData() + pos, readBytes);

executed 173 times by 12 tests: return QByteArray(buf->constData() + pos, readBytes);

Executed by:

tst_QBrush
tst_QDataStream
tst_QGuiVariant
tst_QIODevice
tst_QIcoImageFormat
tst_QIcon
tst_QImage
tst_QImageReader
tst_QPixmap
tst_QTextDocument
tst_QTextDocumentFragment
tst_QTextEdit

173

100 } -

101 -

102 /*! -

103 \class QBuffer -

104 \inmodule QtCore -

105 \reentrant -

106 \brief The QBuffer class provides a QIODevice interface for a QByteArray. -

107 -

108 \ingroup io -

109 -

110 QBuffer allows you to access a QByteArray using the QIODevice -

111 interface. The QByteArray is treated just as a standard random-accessed -

112 file. Example: -

113 -

114 \snippet buffer/buffer.cpp 0 -

115 -

116 By default, an internal QByteArray buffer is created for you when -

117 you create a QBuffer. You can access this buffer directly by -

118 calling buffer(). You can also use QBuffer with an existing -

119 QByteArray by calling setBuffer(), or by passing your array to -

120 QBuffer's constructor. -

121 -

122 Call open() to open the buffer. Then call write() or -

123 putChar() to write to the buffer, and read(), readLine(), -

124 readAll(), or getChar() to read from it. size() returns the -

125 current size of the buffer, and you can seek to arbitrary -

126 positions in the buffer by calling seek(). When you are done with -

127 accessing the buffer, call close(). -

128 -

129 The following code snippet shows how to write data to a -

130 QByteArray using QDataStream and QBuffer: -

131 -

132 \snippet buffer/buffer.cpp 1 -

133 -

134 Effectively, we convert the application's QPalette into a byte -

135 array. Here's how to read the data from the QByteArray: -

136 -

137 \snippet buffer/buffer.cpp 2 -

138 -

139 QTextStream and QDataStream also provide convenience constructors -

140 that take a QByteArray and that create a QBuffer behind the -

141 scenes. -

142 -

143 QBuffer emits readyRead() when new data has arrived in the -

144 buffer. By connecting to this signal, you can use QBuffer to -

145 store temporary data before processing it. QBuffer also emits -

146 bytesWritten() every time new data has been written to the buffer. -

147 -

148 \sa QFile, QDataStream, QTextStream, QByteArray -

149 */ -

150 -

151 #ifdef QT_NO_QOBJECT -

152 QBuffer::QBuffer() -

153 : QIODevice(*new QBufferPrivate) -

154 { -

155 Q_D(QBuffer); -

156 d->buf = &d->defaultBuf; -

157 } -

158 QBuffer::QBuffer(QByteArray *buf) -

159 : QIODevice(*new QBufferPrivate) -

160 { -

161 Q_D(QBuffer); -

162 d->buf = buf ? buf : &d->defaultBuf; -

163 d->defaultBuf.clear(); -

164 } -

165 #else -

166 /*! -

167 Constructs an empty buffer with the given \a parent. You can call -

168 setData() to fill the buffer with data, or you can open it in -

169 write mode and use write(). -

170 -

171 \sa open() -

172 */ -

173 QBuffer::QBuffer(QObject *parent) -

174 : QIODevice(*new QBufferPrivate, parent) -

175 { -

176 Q_D(QBuffer); -

177 d->buf = &d->defaultBuf; -

178

}

executed 1297 times by 41 tests: end of block

Executed by:

tst_QAbstractNetworkCache
tst_QAsn1Element
tst_QAuthenticator
tst_QBitArray
tst_QBuffer
tst_QDataStream
tst_QDockWidget
tst_QFont
tst_QFtp
tst_QGuiVariant
tst_QHttpNetworkReply
tst_QIODevice
tst_QIcoImageFormat
tst_QImage
tst_QImageReader
tst_QLabel
tst_QLoggingRegistry
tst_QMainWindow
tst_QMetaObjectBuilder
tst_QNetworkCacheMetaData
tst_QNetworkDiskCache
tst_QNetworkReply
tst_QPicture
tst_QPlainTextEdit
tst_QPoint
...

1297

179 -

180 /*! -

181 Constructs a QBuffer that uses the QByteArray pointed to by \a -

182 byteArray as its internal buffer, and with the given \a parent. -

183 The caller is responsible for ensuring that \a byteArray remains -

184 valid until the QBuffer is destroyed, or until setBuffer() is -

185 called to change the buffer. QBuffer doesn't take ownership of -

186 the QByteArray. -

187 -

188 If you open the buffer in write-only mode or read-write mode and -

189 write something into the QBuffer, \a byteArray will be modified. -

190 -

191 Example: -

192 -

193 \snippet buffer/buffer.cpp 3 -

194 -

195 \sa open(), setBuffer(), setData() -

196 */ -

197 QBuffer::QBuffer(QByteArray *byteArray, QObject *parent) -

198 : QIODevice(*new QBufferPrivate, parent) -

199 { -

200 Q_D(QBuffer); -

201

d->buf = byteArray ? byteArray : &d->defaultBuf;

byteArray

Description

TRUE

evaluated 9938 times by 64 tests

Evaluated by:

tst_QAbstractItemModel
tst_QAsn1Element
tst_QAuthenticator
tst_QBrush
tst_QBuffer
tst_QDataStream
tst_QDate
tst_QDateTime
tst_QDockWidget
tst_QFileDialog2
tst_QFiledialog
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiVariant
tst_QHeaderView
tst_QHostAddress
tst_QIODevice
tst_QIcoImageFormat
tst_QIcon
tst_QImage
tst_QImageReader
tst_QImageWriter
tst_QKeyEvent
tst_QKeySequence
tst_QListWidget
...

FALSE

never evaluated

0-9938

202 d->defaultBuf.clear(); -

203

}

executed 9938 times by 64 tests: end of block

Executed by:

tst_QAbstractItemModel
tst_QAsn1Element
tst_QAuthenticator
tst_QBrush
tst_QBuffer
tst_QDataStream
tst_QDate
tst_QDateTime
tst_QDockWidget
tst_QFileDialog2
tst_QFiledialog
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiVariant
tst_QHeaderView
tst_QHostAddress
tst_QIODevice
tst_QIcoImageFormat
tst_QIcon
tst_QImage
tst_QImageReader
tst_QImageWriter
tst_QKeyEvent
tst_QKeySequence
tst_QListWidget
...

9938

204 #endif -

205 -

206 /*! -

207 Destroys the buffer. -

208 */ -

209 -

210 QBuffer::~QBuffer() -

211 { -

212 } -

213 -

214 /*! -

215 Makes QBuffer uses the QByteArray pointed to by \a -

216 byteArray as its internal buffer. The caller is responsible for -

217 ensuring that \a byteArray remains valid until the QBuffer is -

218 destroyed, or until setBuffer() is called to change the buffer. -

219 QBuffer doesn't take ownership of the QByteArray. -

220 -

221 Does nothing if isOpen() is true. -

222 -

223 If you open the buffer in write-only mode or read-write mode and -

224 write something into the QBuffer, \a byteArray will be modified. -

225 -

226 Example: -

227 -

228 \snippet buffer/buffer.cpp 4 -

229 -

230 If \a byteArray is 0, the buffer creates its own internal -

231 QByteArray to work on. This byte array is initially empty. -

232 -

233 \sa buffer(), setData(), open() -

234 */ -

235 -

236 void QBuffer::setBuffer(QByteArray *byteArray) -

237 { -

238 Q_D(QBuffer); -

239

if (isOpen()) {

isOpen()	Description
TRUE	never evaluated
FALSE	evaluated 9 times by 1 test Evaluated by: tst_QBuffer

0-9

240 qWarning("QBuffer::setBuffer: Buffer is open"); -

241

return;

never executed: return;

242 } -

243

if (byteArray) {

byteArray	Description
TRUE	evaluated 9 times by 1 test Evaluated by: tst_QBuffer
FALSE	never evaluated

0-9

244 d->buf = byteArray; -

245

} else {

executed 9 times by 1 test: end of block

Executed by:

tst_QBuffer

246 d->buf = &d->defaultBuf; -

247

}

never executed: end of block

248 d->defaultBuf.clear(); -

249

}

executed 9 times by 1 test: end of block

Executed by:

tst_QBuffer

250 -

251 /*! -

252 Returns a reference to the QBuffer's internal buffer. You can use -

253 it to modify the QByteArray behind the QBuffer's back. -

254 -

255 \sa setBuffer(), data() -

256 */ -

257 -

258 QByteArray &QBuffer::buffer() -

259 { -

260 Q_D(QBuffer); -

261

return *d->buf;

executed 492 times by 12 tests: return *d->buf;

Executed by:

tst_QBuffer
tst_QDataStream
tst_QFtp
tst_QImageReader
tst_QNetworkReply
tst_QPicture
tst_QPrinter
tst_QRingBuffer
tst_QTextStream
tst_QXmlInputSource
tst_QXmlStream
tst_Spdy

492

262 } -

263 -

264 /*! -

265 \overload -

266 -

267 This is the same as data(). -

268 */ -

269 -

270 const QByteArray &QBuffer::buffer() const -

271 { -

272 Q_D(const QBuffer); -

273

return *d->buf;

executed 174 times by 3 tests: return *d->buf;

Executed by:

tst_QDataStream
tst_QLabel
tst_QPicture

174

274 } -

275 -

276 -

277 /*! -

278 Returns the data contained in the buffer. -

279 -

280 This is the same as buffer(). -

281 -

282 \sa setData(), setBuffer() -

283 */ -

284 -

285 const QByteArray &QBuffer::data() const -

286 { -

287 Q_D(const QBuffer); -

288

return *d->buf;

executed 25075 times by 12 tests: return *d->buf;

Executed by:

tst_QAbstractNetworkCache
tst_QBuffer
tst_QDataStream
tst_QImage
tst_QImageReader
tst_QNetworkDiskCache
tst_QPixmap
tst_QPlainTextEdit
tst_QTextEdit
tst_QTextStream
tst_QVariant
tst_QXmlStream

25075

289 } -

290 -

291 /*! -

292 Sets the contents of the internal buffer to be \a data. This is -

293 the same as assigning \a data to buffer(). -

294 -

295 Does nothing if isOpen() is true. -

296 -

297 \sa setBuffer() -

298 */ -

299 void QBuffer::setData(const QByteArray &data) -

300 { -

301 Q_D(QBuffer); -

302

if (isOpen()) {

isOpen()

Description

TRUE

never evaluated

FALSE

evaluated 528 times by 29 tests

Evaluated by:

tst_QAbstractNetworkCache
tst_QAsn1Element
tst_QAuthenticator
tst_QBuffer
tst_QDataStream
tst_QDockWidget
tst_QGuiVariant
tst_QHttpNetworkReply
tst_QIcoImageFormat
tst_QImage
tst_QImageReader
tst_QLoggingRegistry
tst_QMainWindow
tst_QMetaObjectBuilder
tst_QNetworkDiskCache
tst_QNetworkReply
tst_QPicture
tst_QSizePolicy
tst_QTextStream
tst_QTranslator
tst_QUrl
tst_QVariant
tst_QVersionNumber
tst_QWidget
tst_QXmlInputSource
...

0-528

303 qWarning("QBuffer::setData: Buffer is open"); -

304

return;

never executed: return;

305 } -

306 *d->buf = data; -

307

}

executed 528 times by 29 tests: end of block

Executed by:

tst_QAbstractNetworkCache
tst_QAsn1Element
tst_QAuthenticator
tst_QBuffer
tst_QDataStream
tst_QDockWidget
tst_QGuiVariant
tst_QHttpNetworkReply
tst_QIcoImageFormat
tst_QImage
tst_QImageReader
tst_QLoggingRegistry
tst_QMainWindow
tst_QMetaObjectBuilder
tst_QNetworkDiskCache
tst_QNetworkReply
tst_QPicture
tst_QSizePolicy
tst_QTextStream
tst_QTranslator
tst_QUrl
tst_QVariant
tst_QVersionNumber
tst_QWidget
tst_QXmlInputSource
...

528

308 -

309 /*! -

310 \fn void QBuffer::setData(const char *data, int size) -

311 -

312 \overload -

313 -

314 Sets the contents of the internal buffer to be the first \a size -

315 bytes of \a data. -

316 */ -

317 -

318 /*! -

319 \reimp -

320 */ -

321 bool QBuffer::open(OpenMode flags) -

322 { -

323 Q_D(QBuffer); -

324 -

325

if ((flags & (Append | Truncate)) != 0)

(flags & (Appe...runcate)) != 0

Description

TRUE

evaluated 78 times by 5 tests

Evaluated by:

tst_QBuffer
tst_QDataStream
tst_QMetaObjectBuilder
tst_QPicture
tst_QPrinter

FALSE

evaluated 11239 times by 80 tests

Evaluated by:

tst_QAbstractItemModel
tst_QAbstractNetworkCache
tst_QAsn1Element
tst_QAuthenticator
tst_QBitArray
tst_QBrush
tst_QBuffer
tst_QDataStream
tst_QDate
tst_QDateTime
tst_QDockWidget
tst_QFileDialog2
tst_QFiledialog
tst_QFont
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiVariant
tst_QHeaderView
tst_QHostAddress
tst_QHttpNetworkReply
tst_QIODevice
tst_QIcoImageFormat
tst_QIcon
tst_QImage
tst_QImageReader
...

78-11239

326

flags |= WriteOnly;

executed 78 times by 5 tests: flags |= WriteOnly;

Executed by:

tst_QBuffer
tst_QDataStream
tst_QMetaObjectBuilder
tst_QPicture
tst_QPrinter

327

if ((flags & (ReadOnly | WriteOnly)) == 0) {

(flags & (Read...iteOnly)) == 0

Description

TRUE

evaluated 3 times by 1 test

Evaluated by:

tst_QBuffer

FALSE

evaluated 11314 times by 80 tests

Evaluated by:

tst_QAbstractItemModel
tst_QAbstractNetworkCache
tst_QAsn1Element
tst_QAuthenticator
tst_QBitArray
tst_QBrush
tst_QBuffer
tst_QDataStream
tst_QDate
tst_QDateTime
tst_QDockWidget
tst_QFileDialog2
tst_QFiledialog
tst_QFont
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiVariant
tst_QHeaderView
tst_QHostAddress
tst_QHttpNetworkReply
tst_QIODevice
tst_QIcoImageFormat
tst_QIcon
tst_QImage
tst_QImageReader
...

3-11314

328 qWarning("QBuffer::open: Buffer access not specified"); -

329

return false;

executed 3 times by 1 test: return false;

Executed by:

tst_QBuffer

330 } -

331 -

332

if ((flags & Truncate) == Truncate)

(flags & Truncate) == Truncate

Description

TRUE

evaluated 52 times by 4 tests

Evaluated by:

tst_QBuffer
tst_QDataStream
tst_QPicture
tst_QPrinter

FALSE

evaluated 11262 times by 80 tests

Evaluated by:

tst_QAbstractItemModel
tst_QAbstractNetworkCache
tst_QAsn1Element
tst_QAuthenticator
tst_QBitArray
tst_QBrush
tst_QBuffer
tst_QDataStream
tst_QDate
tst_QDateTime
tst_QDockWidget
tst_QFileDialog2
tst_QFiledialog
tst_QFont
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiVariant
tst_QHeaderView
tst_QHostAddress
tst_QHttpNetworkReply
tst_QIODevice
tst_QIcoImageFormat
tst_QIcon
tst_QImage
tst_QImageReader
...

52-11262

333

d->buf->resize(0);

executed 52 times by 4 tests: d->buf->resize(0);

Executed by:

tst_QBuffer
tst_QDataStream
tst_QPicture
tst_QPrinter

334 -

335

return QIODevice::open(flags | QIODevice::Unbuffered);

executed 11314 times by 80 tests: return QIODevice::open(flags | QIODevice::Unbuffered);

Executed by:

tst_QAbstractItemModel
tst_QAbstractNetworkCache
tst_QAsn1Element
tst_QAuthenticator
tst_QBitArray
tst_QBrush
tst_QBuffer
tst_QDataStream
tst_QDate
tst_QDateTime
tst_QDockWidget
tst_QFileDialog2
tst_QFiledialog
tst_QFont
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiVariant
tst_QHeaderView
tst_QHostAddress
tst_QHttpNetworkReply
tst_QIODevice
tst_QIcoImageFormat
tst_QIcon
tst_QImage
tst_QImageReader
...

11314

336 } -

337 -

338 /*! -

339 \reimp -

340 */ -

341 void QBuffer::close() -

342 { -

343 QIODevice::close(); -

344

}

executed 1836 times by 16 tests: end of block

Executed by:

tst_QAbstractNetworkCache
tst_QBitArray
tst_QBuffer
tst_QDataStream
tst_QFont
tst_QIcoImageFormat
tst_QImageReader
tst_QMimeDatabase
tst_QNetworkDiskCache
tst_QNetworkReply
tst_QPicture
tst_QPlainTextEdit
tst_QPrinter
tst_QTextEdit
tst_QTextStream
tst_QXmlStream

1836

345 -

346 /*! -

347 \reimp -

348 */ -

349 qint64 QBuffer::pos() const -

350 { -

351

return QIODevice::pos();

executed 9749910 times by 80 tests: return QIODevice::pos();

Executed by:

tst_QAbstractItemModel
tst_QAbstractNetworkCache
tst_QAsn1Element
tst_QAuthenticator
tst_QBitArray
tst_QBrush
tst_QBuffer
tst_QDataStream
tst_QDate
tst_QDateTime
tst_QDockWidget
tst_QFileDialog2
tst_QFiledialog
tst_QFont
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiVariant
tst_QHeaderView
tst_QHostAddress
tst_QHttpNetworkReply
tst_QIODevice
tst_QIcoImageFormat
tst_QIcon
tst_QImage
tst_QImageReader
...

9749910

352 } -

353 -

354 /*! -

355 \reimp -

356 */ -

357 qint64 QBuffer::size() const -

358 { -

359 Q_D(const QBuffer); -

360

return qint64(d->buf->size());

executed 25099 times by 37 tests: return qint64(d->buf->size());

Executed by:

tst_QAbstractItemModel
tst_QAbstractNetworkCache
tst_QAuthenticator
tst_QBrush
tst_QBuffer
tst_QDataStream
tst_QDockWidget
tst_QFileDialog2
tst_QFiledialog
tst_QFtp
tst_QGuiVariant
tst_QIODevice
tst_QIcoImageFormat
tst_QIcon
tst_QImage
tst_QImageReader
tst_QKeySequence
tst_QLoggingRegistry
tst_QMainWindow
tst_QMetaObjectBuilder
tst_QNetworkDiskCache
tst_QNetworkReply
tst_QPicture
tst_QPixmap
tst_QPlainTextEdit
...

25099

361 } -

362 -

363 /*! -

364 \reimp -

365 */ -

366 bool QBuffer::seek(qint64 pos) -

367 { -

368 Q_D(QBuffer); -

369

if (pos > d->buf->size() && isWritable()) {

pos > d->buf->size()

Description

TRUE

evaluated 3 times by 1 test

Evaluated by:

tst_QBuffer

FALSE

evaluated 45716 times by 29 tests

Evaluated by:

tst_QAuthenticator
tst_QBitArray
tst_QBrush
tst_QBuffer
tst_QDataStream
tst_QDate
tst_QFont
tst_QGuiVariant
tst_QIODevice
tst_QIcoImageFormat
tst_QIcon
tst_QImage
tst_QImageReader
tst_QLocalSocket
tst_QMetaType
tst_QNetworkCacheMetaData
tst_QNetworkReply
tst_QPicture
tst_QPixmap
tst_QPlainTextEdit
tst_QPoint
tst_QPointF
tst_QPrinter
tst_QRingBuffer
tst_QTextDocument
...

isWritable()	Description
TRUE	evaluated 3 times by 1 test Evaluated by: tst_QBuffer
FALSE	never evaluated

0-45716

370

if (seek(d->buf->size())) {

seek(d->buf->size())	Description
TRUE	evaluated 3 times by 1 test Evaluated by: tst_QBuffer
FALSE	never evaluated

0-3

371 const qint64 gapSize = pos - d->buf->size(); -

372

if (write(QByteArray(gapSize, 0)) != gapSize) {

write(QByteArr...0)) != gapSize	Description
TRUE	never evaluated
FALSE	evaluated 3 times by 1 test Evaluated by: tst_QBuffer

0-3

373 qWarning("QBuffer::seek: Unable to fill gap"); -

374

return false;

never executed: return false;

375 } -

376

} else {

executed 3 times by 1 test: end of block

Executed by:

tst_QBuffer

377

return false;

never executed: return false;

378 } -

379

} else if (pos > d->buf->size() || pos < 0) {

pos > d->buf->size()

Description

TRUE

never evaluated

FALSE

evaluated 45716 times by 29 tests

Evaluated by:

tst_QAuthenticator
tst_QBitArray
tst_QBrush
tst_QBuffer
tst_QDataStream
tst_QDate
tst_QFont
tst_QGuiVariant
tst_QIODevice
tst_QIcoImageFormat
tst_QIcon
tst_QImage
tst_QImageReader
tst_QLocalSocket
tst_QMetaType
tst_QNetworkCacheMetaData
tst_QNetworkReply
tst_QPicture
tst_QPixmap
tst_QPlainTextEdit
tst_QPoint
tst_QPointF
tst_QPrinter
tst_QRingBuffer
tst_QTextDocument
...

pos < 0

Description

TRUE

evaluated 2 times by 1 test

Evaluated by:

tst_QBuffer

FALSE

evaluated 45714 times by 29 tests

Evaluated by:

tst_QAuthenticator
tst_QBitArray
tst_QBrush
tst_QBuffer
tst_QDataStream
tst_QDate
tst_QFont
tst_QGuiVariant
tst_QIODevice
tst_QIcoImageFormat
tst_QIcon
tst_QImage
tst_QImageReader
tst_QLocalSocket
tst_QMetaType
tst_QNetworkCacheMetaData
tst_QNetworkReply
tst_QPicture
tst_QPixmap
tst_QPlainTextEdit
tst_QPoint
tst_QPointF
tst_QPrinter
tst_QRingBuffer
tst_QTextDocument
...

0-45716

380 qWarning("QBuffer::seek: Invalid pos: %d", int(pos)); -

381

return false;

executed 2 times by 1 test: return false;

Executed by:

tst_QBuffer

382 } -

383

return QIODevice::seek(pos);

executed 45717 times by 29 tests: return QIODevice::seek(pos);

Executed by:

tst_QAuthenticator
tst_QBitArray
tst_QBrush
tst_QBuffer
tst_QDataStream
tst_QDate
tst_QFont
tst_QGuiVariant
tst_QIODevice
tst_QIcoImageFormat
tst_QIcon
tst_QImage
tst_QImageReader
tst_QLocalSocket
tst_QMetaType
tst_QNetworkCacheMetaData
tst_QNetworkReply
tst_QPicture
tst_QPixmap
tst_QPlainTextEdit
tst_QPoint
tst_QPointF
tst_QPrinter
tst_QRingBuffer
tst_QTextDocument
...

45717

384 } -

385 -

386 /*! -

387 \reimp -

388 */ -

389 bool QBuffer::atEnd() const -

390 { -

391

return QIODevice::atEnd();

executed 5890 times by 26 tests: return QIODevice::atEnd();

Executed by:

tst_QAbstractItemModel
tst_QAbstractNetworkCache
tst_QBuffer
tst_QDataStream
tst_QDockWidget
tst_QFileDialog2
tst_QFiledialog
tst_QFtp
tst_QGuiVariant
tst_QIODevice
tst_QIcon
tst_QImage
tst_QImageReader
tst_QKeySequence
tst_QLoggingRegistry
tst_QMainWindow
tst_QNetworkDiskCache
tst_QNetworkReply
tst_QPicture
tst_QPixmap
tst_QPrinter
tst_QStandardItemModel
tst_QTextStream
tst_QTranslator
tst_QXmlStream
...

5890

392 } -

393 -

394 /*! -

395 \reimp -

396 */ -

397 bool QBuffer::canReadLine() const -

398 { -

399 Q_D(const QBuffer); -

400

if (!isOpen())

!isOpen()	Description
TRUE	evaluated 4 times by 1 test Evaluated by: tst_QBuffer
FALSE	evaluated 59 times by 3 tests Evaluated by: tst_QBuffer tst_QIODevice tst_QXmlSimpleReader

4-59

401

return false;

executed 4 times by 1 test: return false;

Executed by:

tst_QBuffer

402 -

403

return d->buf->indexOf('\n', int(pos())) != -1 || QIODevice::canReadLine();

executed 59 times by 3 tests: return d->buf->indexOf('\n', int(pos())) != -1 || QIODevice::canReadLine();

Executed by:

tst_QBuffer
tst_QIODevice
tst_QXmlSimpleReader

404 } -

405 -

406 /*! -

407 \reimp -

408 */ -

409 qint64 QBuffer::readData(char *data, qint64 len) -

410 { -

411 Q_D(QBuffer); -

412

if ((len = qMin(len, qint64(d->buf->size()) - pos())) <= 0)

(len = qMin(le...- pos())) <= 0

Description

TRUE

evaluated 1473 times by 21 tests

Evaluated by:

tst_QAsn1Element
tst_QBuffer
tst_QDataStream
tst_QFtp
tst_QGuiVariant
tst_QHeaderView
tst_QIODevice
tst_QImage
tst_QImageReader
tst_QLoggingRegistry
tst_QMainWindow
tst_QMetaObjectBuilder
tst_QMetaType
tst_QNetworkReply
tst_QPixmap
tst_QPrinter
tst_QTextStream
tst_QXmlInputSource
tst_QXmlSimpleReader
tst_QXmlStream
tst_languageChange

FALSE

evaluated 4647285 times by 72 tests

Evaluated by:

tst_QAbstractItemModel
tst_QAbstractNetworkCache
tst_QAsn1Element
tst_QAuthenticator
tst_QBitArray
tst_QBrush
tst_QBuffer
tst_QDataStream
tst_QDate
tst_QDateTime
tst_QDockWidget
tst_QFileDialog2
tst_QFiledialog
tst_QFont
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiVariant
tst_QHeaderView
tst_QHostAddress
tst_QHttpNetworkReply
tst_QIODevice
tst_QIcoImageFormat
tst_QIcon
tst_QImage
tst_QImageReader
...

1473-4647285

413

return qint64(0);

executed 1473 times by 21 tests: return qint64(0);

Executed by:

tst_QAsn1Element
tst_QBuffer
tst_QDataStream
tst_QFtp
tst_QGuiVariant
tst_QHeaderView
tst_QIODevice
tst_QImage
tst_QImageReader
tst_QLoggingRegistry
tst_QMainWindow
tst_QMetaObjectBuilder
tst_QMetaType
tst_QNetworkReply
tst_QPixmap
tst_QPrinter
tst_QTextStream
tst_QXmlInputSource
tst_QXmlSimpleReader
tst_QXmlStream
tst_languageChange

1473

414 memcpy(data, d->buf->constData() + pos(), len); -

415

return len;

executed 4647285 times by 72 tests: return len;

Executed by:

tst_QAbstractItemModel
tst_QAbstractNetworkCache
tst_QAsn1Element
tst_QAuthenticator
tst_QBitArray
tst_QBrush
tst_QBuffer
tst_QDataStream
tst_QDate
tst_QDateTime
tst_QDockWidget
tst_QFileDialog2
tst_QFiledialog
tst_QFont
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiVariant
tst_QHeaderView
tst_QHostAddress
tst_QHttpNetworkReply
tst_QIODevice
tst_QIcoImageFormat
tst_QIcon
tst_QImage
tst_QImageReader
...

4647285

416 } -

417 -

418 /*! -

419 \reimp -

420 */ -

421 qint64 QBuffer::writeData(const char *data, qint64 len) -

422 { -

423 Q_D(QBuffer); -

424 int extraBytes = pos() + len - d->buf->size(); -

425

if (extraBytes > 0) { // overflow

extraBytes > 0

Description

TRUE

evaluated 212303 times by 69 tests

Evaluated by:

tst_QAbstractItemModel
tst_QAbstractNetworkCache
tst_QAsn1Element
tst_QAuthenticator
tst_QBitArray
tst_QBrush
tst_QBuffer
tst_QDataStream
tst_QDate
tst_QDateTime
tst_QDockWidget
tst_QFileDialog2
tst_QFiledialog
tst_QFont
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiVariant
tst_QHeaderView
tst_QHostAddress
tst_QIODevice
tst_QIcoImageFormat
tst_QIcon
tst_QImage
tst_QImageReader
tst_QImageWriter
...

FALSE

evaluated 8300 times by 14 tests

Evaluated by:

tst_QAsn1Element
tst_QAuthenticator
tst_QBuffer
tst_QDataStream
tst_QIODevice
tst_QLocalSocket
tst_QPicture
tst_QPlainTextEdit
tst_QPrinter
tst_QTextEdit
tst_QTextStream
tst_QTimeZone
tst_QUuid
tst_QXmlStream

8300-212303

426 int newSize = d->buf->size() + extraBytes; -

427 d->buf->resize(newSize); -

428

if (d->buf->size() != newSize) { // could not resize

d->buf->size() != newSize

Description

TRUE

never evaluated

FALSE

evaluated 212303 times by 69 tests

Evaluated by:

tst_QAbstractItemModel
tst_QAbstractNetworkCache
tst_QAsn1Element
tst_QAuthenticator
tst_QBitArray
tst_QBrush
tst_QBuffer
tst_QDataStream
tst_QDate
tst_QDateTime
tst_QDockWidget
tst_QFileDialog2
tst_QFiledialog
tst_QFont
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiVariant
tst_QHeaderView
tst_QHostAddress
tst_QIODevice
tst_QIcoImageFormat
tst_QIcon
tst_QImage
tst_QImageReader
tst_QImageWriter
...

0-212303

429 qWarning("QBuffer::writeData: Memory allocation error"); -

430

return -1;

never executed: return -1;

431 } -

432

}

executed 212303 times by 69 tests: end of block

Executed by:

tst_QAbstractItemModel
tst_QAbstractNetworkCache
tst_QAsn1Element
tst_QAuthenticator
tst_QBitArray
tst_QBrush
tst_QBuffer
tst_QDataStream
tst_QDate
tst_QDateTime
tst_QDockWidget
tst_QFileDialog2
tst_QFiledialog
tst_QFont
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiVariant
tst_QHeaderView
tst_QHostAddress
tst_QIODevice
tst_QIcoImageFormat
tst_QIcon
tst_QImage
tst_QImageReader
tst_QImageWriter
...

212303

433 -

434 memcpy(d->buf->data() + pos(), data, int(len)); -

435 -

436 #ifndef QT_NO_QOBJECT -

437 d->writtenSinceLastEmit += len; -

438

if (d->signalConnectionCount && !d->signalsEmitted && !signalsBlocked()) {

d->signalConnectionCount

Description

TRUE

evaluated 40 times by 1 test

Evaluated by:

tst_QBuffer

FALSE

evaluated 220563 times by 69 tests

Evaluated by:

tst_QAbstractItemModel
tst_QAbstractNetworkCache
tst_QAsn1Element
tst_QAuthenticator
tst_QBitArray
tst_QBrush
tst_QBuffer
tst_QDataStream
tst_QDate
tst_QDateTime
tst_QDockWidget
tst_QFileDialog2
tst_QFiledialog
tst_QFont
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiVariant
tst_QHeaderView
tst_QHostAddress
tst_QIODevice
tst_QIcoImageFormat
tst_QIcon
tst_QImage
tst_QImageReader
tst_QImageWriter
...

!d->signalsEmitted	Description
TRUE	evaluated 31 times by 1 test Evaluated by: tst_QBuffer
FALSE	evaluated 9 times by 1 test Evaluated by: tst_QBuffer

!signalsBlocked()	Description
TRUE	evaluated 31 times by 1 test Evaluated by: tst_QBuffer
FALSE	never evaluated

0-220563

439 d->signalsEmitted = true; -

440 QMetaObject::invokeMethod(this, "_q_emitSignals", Qt::QueuedConnection); -

441

}

executed 31 times by 1 test: end of block

Executed by:

tst_QBuffer

442 #endif -

443

return len;

executed 220603 times by 69 tests: return len;

Executed by:

tst_QAbstractItemModel
tst_QAbstractNetworkCache
tst_QAsn1Element
tst_QAuthenticator
tst_QBitArray
tst_QBrush
tst_QBuffer
tst_QDataStream
tst_QDate
tst_QDateTime
tst_QDockWidget
tst_QFileDialog2
tst_QFiledialog
tst_QFont
tst_QFtp
tst_QGraphicsProxyWidget
tst_QGuiVariant
tst_QHeaderView
tst_QHostAddress
tst_QIODevice
tst_QIcoImageFormat
tst_QIcon
tst_QImage
tst_QImageReader
tst_QImageWriter
...

220603

444 } -

445 -

446 #ifndef QT_NO_QOBJECT -

447 /*! -

448 \reimp -

449 \internal -

450 */ -

451 void QBuffer::connectNotify(const QMetaMethod &signal) -

452 { -

453 static const QMetaMethod readyReadSignal = QMetaMethod::fromSignal(&QBuffer::readyRead); -

454 static const QMetaMethod bytesWrittenSignal = QMetaMethod::fromSignal(&QBuffer::bytesWritten); -

455

if (signal == readyReadSignal || signal == bytesWrittenSignal)

signal == readyReadSignal	Description
TRUE	evaluated 40 times by 3 tests Evaluated by: tst_QAbstractNetworkCache tst_QBuffer tst_QNetworkReply
FALSE	evaluated 1349 times by 11 tests Evaluated by: tst_QAbstractNetworkCache tst_QBuffer tst_QKeyEvent tst_QLoggingRegistry tst_QNetworkReply tst_QString tst_QTextStream tst_QXmlStream tst_qdbusxml2cpp - unknown status tst_qmakelib tst_qtextstream - unknown status

signal == bytesWrittenSignal	Description
TRUE	evaluated 4 times by 1 test Evaluated by: tst_QBuffer
FALSE	evaluated 1345 times by 10 tests Evaluated by: tst_QAbstractNetworkCache tst_QKeyEvent tst_QLoggingRegistry tst_QNetworkReply tst_QString tst_QTextStream tst_QXmlStream tst_qdbusxml2cpp - unknown status tst_qmakelib tst_qtextstream - unknown status

4-1349

456

d_func()->signalConnectionCount++;

executed 44 times by 3 tests: d_func()->signalConnectionCount++;

Executed by:

tst_QAbstractNetworkCache
tst_QBuffer
tst_QNetworkReply

457

}

executed 1389 times by 11 tests: end of block

Executed by:

tst_QAbstractNetworkCache
tst_QBuffer
tst_QKeyEvent
tst_QLoggingRegistry
tst_QNetworkReply
tst_QString
tst_QTextStream
tst_QXmlStream
tst_qdbusxml2cpp - unknown status
tst_qmakelib
tst_qtextstream - unknown status

1389

458 -

459 /*! -

460 \reimp -

461 \internal -

462 */ -

463 void QBuffer::disconnectNotify(const QMetaMethod &signal) -

464 { -

465

if (signal.isValid()) {

signal.isValid()	Description
TRUE	evaluated 472 times by 3 tests Evaluated by: tst_QAbstractNetworkCache tst_QNetworkReply tst_QTextStream
FALSE	never evaluated

0-472

466 static const QMetaMethod readyReadSignal = QMetaMethod::fromSignal(&QBuffer::readyRead); -

467 static const QMetaMethod bytesWrittenSignal = QMetaMethod::fromSignal(&QBuffer::bytesWritten); -

468

if (signal == readyReadSignal || signal == bytesWrittenSignal)

signal == readyReadSignal	Description
TRUE	evaluated 9 times by 2 tests Evaluated by: tst_QAbstractNetworkCache tst_QNetworkReply
FALSE	evaluated 463 times by 3 tests Evaluated by: tst_QAbstractNetworkCache tst_QNetworkReply tst_QTextStream

signal == bytesWrittenSignal	Description
TRUE	never evaluated
FALSE	evaluated 463 times by 3 tests Evaluated by: tst_QAbstractNetworkCache tst_QNetworkReply tst_QTextStream

0-463

469

d_func()->signalConnectionCount--;

executed 9 times by 2 tests: d_func()->signalConnectionCount--;

Executed by:

tst_QAbstractNetworkCache
tst_QNetworkReply

470

} else {

executed 472 times by 3 tests: end of block

Executed by:

tst_QAbstractNetworkCache
tst_QNetworkReply
tst_QTextStream

472

471 d_func()->signalConnectionCount = 0; -

472

}

never executed: end of block

473 } -

474 #endif -

475 -

476 QT_END_NAMESPACE -

477 -

478 #ifndef QT_NO_QOBJECT -

479 # include "moc_qbuffer.cpp" -

480 #endif -

481 -

Source code

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