qbuffer.cpp

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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 "qbuffer.h" -

35 #include <QtCore/qmetaobject.h> -

36 #include "private/qiodevice_p.h" -

37 -

38 QT_BEGIN_NAMESPACE -

39 -

40 /** QBufferPrivate **/ -

41 class QBufferPrivate : public QIODevicePrivate -

42 { -

43 Q_DECLARE_PUBLIC(QBuffer) -

44 -

45 public: -

46 QBufferPrivate() -

47 : buf(0) -

48 #ifndef QT_NO_QOBJECT -

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

50 #endif -

{ }

executed 10588 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
...

10588

52 ~QBufferPrivate() { } -

53 -

54 QByteArray *buf; -

55 QByteArray defaultBuf; -

56 -

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

58 virtual QByteArray peek(qint64 maxSize) Q_DECL_OVERRIDE; -

59 -

60 #ifndef QT_NO_QOBJECT -

61 // private slots -

62 void _q_emitSignals(); -

63 -

64 qint64 writtenSinceLastEmit; -

65 int signalConnectionCount; -

66 bool signalsEmitted; -

67 #endif -

68 }; -

69 -

70 #ifndef QT_NO_QOBJECT -

71 void QBufferPrivate::_q_emitSignals() -

72 { -

73 Q_Q(QBuffer); -

74 emit q->bytesWritten(writtenSinceLastEmit); -

75 writtenSinceLastEmit = 0; -

76 emit q->readyRead(); -

77 signalsEmitted = false; -

}

executed 30 times by 1 test: end of block

Executed by:

tst_QBuffer

79 #endif -

80 -

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

82 { -

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

84 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

86 } -

87 -

88 QByteArray QBufferPrivate::peek(qint64 maxSize) -

89 { -

90 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

94 } -

95 -

96 /*! -

97 \class QBuffer -

98 \inmodule QtCore -

99 \reentrant -

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

101 -

102 \ingroup io -

103 -

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

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

106 file. Example: -

107 -

108 \snippet buffer/buffer.cpp 0 -

109 -

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

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

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

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

114 QBuffer's constructor. -

115 -

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

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

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

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

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

121 accessing the buffer, call close(). -

122 -

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

124 QByteArray using QDataStream and QBuffer: -

125 -

126 \snippet buffer/buffer.cpp 1 -

127 -

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

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

130 -

131 \snippet buffer/buffer.cpp 2 -

132 -

133 QTextStream and QDataStream also provide convenience constructors -

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

135 scenes. -

136 -

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

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

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

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

141 -

142 \sa QFile, QDataStream, QTextStream, QByteArray -

143 */ -

144 -

145 #ifdef QT_NO_QOBJECT -

146 QBuffer::QBuffer() -

147 : QIODevice(*new QBufferPrivate) -

148 { -

149 Q_D(QBuffer); -

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

151 } -

152 QBuffer::QBuffer(QByteArray *buf) -

153 : QIODevice(*new QBufferPrivate) -

154 { -

155 Q_D(QBuffer); -

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

157 d->defaultBuf.clear(); -

158 } -

159 #else -

160 /*! -

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

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

163 write mode and use write(). -

164 -

165 \sa open() -

166 */ -

167 QBuffer::QBuffer(QObject *parent) -

168 : QIODevice(*new QBufferPrivate, parent) -

169 { -

170 Q_D(QBuffer); -

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

172

}

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

173 -

174 /*! -

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

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

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

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

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

180 the QByteArray. -

181 -

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

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

184 -

185 Example: -

186 -

187 \snippet buffer/buffer.cpp 3 -

188 -

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

190 */ -

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

192 : QIODevice(*new QBufferPrivate, parent) -

193 { -

194 Q_D(QBuffer); -

195

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

byteArray

Description

TRUE

evaluated 9291 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

0-9291

196 d->defaultBuf.clear(); -

197

}

executed 9291 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
...

9291

198 #endif -

199 -

200 /*! -

201 Destroys the buffer. -

202 */ -

203 -

204 QBuffer::~QBuffer() -

205 { -

206 } -

207 -

208 /*! -

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

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

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

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

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

214 -

215 Does nothing if isOpen() is true. -

216 -

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

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

219 -

220 Example: -

221 -

222 \snippet buffer/buffer.cpp 4 -

223 -

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

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

226 -

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

228 */ -

229 -

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

231 { -

232 Q_D(QBuffer); -

233

if (isOpen()) {

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

0-9

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

235

return;

never executed: return;

236 } -

237

if (byteArray) {

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

0-9

238 d->buf = byteArray; -

239

} else {

executed 9 times by 1 test: end of block

Executed by:

tst_QBuffer

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

241

}

never executed: end of block

242 d->defaultBuf.clear(); -

243

}

executed 9 times by 1 test: end of block

Executed by:

tst_QBuffer

244 -

245 /*! -

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

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

248 -

249 \sa setBuffer(), data() -

250 */ -

251 -

252 QByteArray &QBuffer::buffer() -

253 { -

254 Q_D(QBuffer); -

255

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

256 } -

257 -

258 /*! -

259 \overload -

260 -

261 This is the same as data(). -

262 */ -

263 -

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

265 { -

266 Q_D(const QBuffer); -

267

return *d->buf;

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

Executed by:

tst_QDataStream
tst_QLabel
tst_QPicture

174

268 } -

269 -

270 -

271 /*! -

272 Returns the data contained in the buffer. -

273 -

274 This is the same as buffer(). -

275 -

276 \sa setData(), setBuffer() -

277 */ -

278 -

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

280 { -

281 Q_D(const QBuffer); -

282

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

283 } -

284 -

285 /*! -

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

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

288 -

289 Does nothing if isOpen() is true. -

290 -

291 \sa setBuffer() -

292 */ -

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

294 { -

295 Q_D(QBuffer); -

296

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

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

298

return;

never executed: return;

299 } -

300 *d->buf = data; -

301

}

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

302 -

303 /*! -

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

305 -

306 \overload -

307 -

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

309 bytes of \a data. -

310 */ -

311 -

312 /*! -

313 \reimp -

314 */ -

315 bool QBuffer::open(OpenMode flags) -

316 { -

317 Q_D(QBuffer); -

318 -

319

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 10592 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
...

78-10592

320

flags |= WriteOnly;

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

Executed by:

tst_QBuffer
tst_QDataStream
tst_QMetaObjectBuilder
tst_QPicture
tst_QPrinter

321

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

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

Description

TRUE

evaluated 3 times by 1 test

Evaluated by:

tst_QBuffer

FALSE

evaluated 10667 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
...

3-10667

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

323

return false;

executed 3 times by 1 test: return false;

Executed by:

tst_QBuffer

324 } -

325 -

326

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 10615 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
...

52-10615

327

d->buf->resize(0);

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

Executed by:

tst_QBuffer
tst_QDataStream
tst_QPicture
tst_QPrinter

328 -

329

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

executed 10667 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
...

10667

330 } -

331 -

332 /*! -

333 \reimp -

334 */ -

335 void QBuffer::close() -

336 { -

337 QIODevice::close(); -

338

}

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

339 -

340 /*! -

341 \reimp -

342 */ -

343 qint64 QBuffer::pos() const -

344 { -

345

return QIODevice::pos();

executed 9742750 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
...

9742750

346 } -

347 -

348 /*! -

349 \reimp -

350 */ -

351 qint64 QBuffer::size() const -

352 { -

353 Q_D(const QBuffer); -

354

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

executed 24433 times by 42 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_QNetworkCacheMetaData
tst_QNetworkDiskCache
tst_QNetworkReply
tst_QPicture
tst_QPixmap
...

24433

355 } -

356 -

357 /*! -

358 \reimp -

359 */ -

360 bool QBuffer::seek(qint64 pos) -

361 { -

362 Q_D(QBuffer); -

363

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

pos > d->buf->size()

Description

TRUE

evaluated 3 times by 1 test

Evaluated by:

tst_QBuffer

FALSE

evaluated 45561 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

0-45561

364

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

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

366

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

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

368

return false;

never executed: return false;

369 } -

370

} else {

executed 3 times by 1 test: end of block

Executed by:

tst_QBuffer

371

return false;

never executed: return false;

372 } -

373

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

pos > d->buf->size()

Description

TRUE

never evaluated

FALSE

evaluated 45561 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 45559 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
...

0-45561

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

375

return false;

executed 2 times by 1 test: return false;

Executed by:

tst_QBuffer

376 } -

377

return QIODevice::seek(pos);

executed 45562 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
...

45562

378 } -

379 -

380 /*! -

381 \reimp -

382 */ -

383 bool QBuffer::atEnd() const -

384 { -

385

return QIODevice::atEnd();

executed 4798 times by 32 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_QMetaObjectBuilder
tst_QNetworkCacheMetaData
tst_QNetworkDiskCache
tst_QNetworkReply
tst_QPicture
tst_QPixmap
tst_QPrinter
tst_QSettings
tst_QSplitter
...

4798

386 } -

387 -

388 /*! -

389 \reimp -

390 */ -

391 bool QBuffer::canReadLine() const -

392 { -

393 Q_D(const QBuffer); -

394

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

395

return false;

executed 4 times by 1 test: return false;

Executed by:

tst_QBuffer

396 -

397

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

d->buf->indexO...(pos())) != -1	Description
TRUE	evaluated 55 times by 3 tests Evaluated by: tst_QBuffer tst_QIODevice tst_QXmlSimpleReader
FALSE	evaluated 4 times by 2 tests Evaluated by: tst_QBuffer tst_QXmlSimpleReader

QIODevice::canReadLine()	Description
TRUE	never evaluated
FALSE	evaluated 4 times by 2 tests Evaluated by: tst_QBuffer tst_QXmlSimpleReader

0-59

398 } -

399 -

400 /*! -

401 \reimp -

402 */ -

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

404 { -

405 Q_D(QBuffer); -

406

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

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

Description

TRUE

evaluated 1348 times by 20 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

FALSE

evaluated 4641005 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
...

1348-4641005

407

return qint64(0);

executed 1348 times by 20 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

1348

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

409

return len;

executed 4641005 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
...

4641005

410 } -

411 -

412 /*! -

413 \reimp -

414 */ -

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

416 { -

417 Q_D(QBuffer); -

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

419

if (extraBytes > 0) { // overflow

extraBytes > 0

Description

TRUE

evaluated 211904 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

8300-211904

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

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

422

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

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

Description

TRUE

never evaluated

FALSE

evaluated 211904 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
...

0-211904

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

424

return -1;

never executed: return -1;

425 } -

426

}

executed 211904 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
...

211904

427 -

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

429 -

430 #ifndef QT_NO_QOBJECT -

431 d->writtenSinceLastEmit += len; -

432

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

d->signalConnectionCount

Description

TRUE

evaluated 40 times by 1 test

Evaluated by:

tst_QBuffer

FALSE

evaluated 220164 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

0-220164

433 d->signalsEmitted = true; -

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

435

}

executed 31 times by 1 test: end of block

Executed by:

tst_QBuffer

436 #endif -

437

return len;

executed 220204 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
...

220204

438 } -

439 -

440 #ifndef QT_NO_QOBJECT -

441 /*! -

442 \reimp -

443 \internal -

444 */ -

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

446 { -

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

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

449

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

450

d_func()->signalConnectionCount++;

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

Executed by:

tst_QAbstractNetworkCache
tst_QBuffer
tst_QNetworkReply

451

}

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

452 -

453 /*! -

454 \reimp -

455 \internal -

456 */ -

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

458 { -

459

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

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

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

462

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

463

d_func()->signalConnectionCount--;

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

Executed by:

tst_QAbstractNetworkCache
tst_QNetworkReply

464

} else {

executed 472 times by 3 tests: end of block

Executed by:

tst_QAbstractNetworkCache
tst_QNetworkReply
tst_QTextStream

472

465 d_func()->signalConnectionCount = 0; -

466

}

never executed: end of block

467 } -

468 #endif -

469 -

470 QT_END_NAMESPACE -

471 -

472 #ifndef QT_NO_QOBJECT -

473 # include "moc_qbuffer.cpp" -

474 #endif -

475 -

Source code

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