本文整理汇总了C++中QFile::flush方法的典型用法代码示例。如果您正苦于以下问题：C++ QFile::flush方法的具体用法？C++ QFile::flush怎么用？C++ QFile::flush使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QFile的用法示例。
在下文中一共展示了QFile::flush方法的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: printMsgHandler
// Qt4 code
void printMsgHandler(QtMsgType type, const char * _str)
{
static QMutex _logmut;
_logmut.lock();
QString time=QTime::currentTime().toString("hh:mm:ss");
QString str=QString("[%1]["+time+"] %2\n").arg(type).arg(_str);
switch (type)
{
case QtDebugMsg:
_logfile.write(str.toLocal8Bit());
_logfile.flush();
break;
case QtWarningMsg:
fprintf(stderr, "Debug: %s\n", str.toLocal8Bit().data());
_logfile.write(str.toLocal8Bit());
_logfile.flush();
break;
case QtCriticalMsg:
_logfile.write(str.toLocal8Bit());
_logfile.flush();
break;
case QtFatalMsg:
_logfile.write(str.toLocal8Bit());
_logfile.flush();
exit(-1);
break;
}
_logmut.unlock();
};示例2: messageHandler
void QxtDaemon::messageHandler(QtMsgType type, const char *msg)
{
QFile * f = qxt_daemon_singleton->logfile;
f->write("[");
f->write(QDateTime::currentDateTime().toString(Qt::ISODate).toLocal8Bit());
f->write("] ");
if (type == QtDebugMsg)
f->write("[qDebug] ");
else if (type == QtWarningMsg)
f->write("[qWarning] ");
else if (type == QtCriticalMsg)
f->write("[qCritical] ");
else if (type == QtFatalMsg)
{
f->write("[qFatal] ");
f->write(msg);
f->write("\n");
f->write("aborting \n");
f->flush();
abort();
}
f->write(msg);
f->write("\n");
f->flush();
}示例3: DownloadUpdate
void UpdateManager::DownloadUpdate()
{
QNetworkAccessManager *manager = new QNetworkAccessManager(this);
connect(manager, &QNetworkAccessManager::finished,
[=](QNetworkReply *reply)
{
if(reply->error())
emit errorSignal("UpdateManager: "+reply->errorString());
else
{
// todo: progress bar
// todo: compression
QFile *file = new QFile("Baka MPlayer.exe");
if(file->open(QFile::Truncate))
{
file->write(reply->readAll());
file->flush();
file->close();
}
delete file;
}
reply->deleteLater();
});
manager->get(QNetworkRequest(QUrl("http://bakamplayer.u8sand.net/Baka MPlayer.exe")));
}示例4: SaveFile
void ConfigFile::SaveFile(QString path)
{
QString current = QDir::currentPath();
QString destinyFile;
QStringList list = ConfigFileName.split(QDir::separator());
QString fileName = list.at(list.count()-1);
if(path!=""){
//destinyFile = current + QDir::separator() + path + QDir::separator() + fileName;
destinyFile = path + QDir::separator() + fileName;
} else {
destinyFile = current + QDir::separator() + fileName;
}
destinyFile = destinyFile.replace("/", QDir::separator());
destinyFile = destinyFile.replace("\\", QDir::separator());
DeleteOldFileIfExists(destinyFile);
QFile *file = OpenFileForWriting(destinyFile);
if (!file){
saveSuccess = false;
return;
}
std::string str = this->ConfigContents.toStdString();
file->write(str.c_str());
file->flush();
file->close();
saveSuccess=true;
}示例5: download
void HttpClient::download(const QString &destinationPath,
std::function<void (const QString &)> successHandler,
std::function<void (const QString &)> errorHandler) {
bool debug = d->debug;
QFile *file = new QFile(destinationPath);
if (file->open(QIODevice::WriteOnly)) {
download([=](const QByteArray &data) {
file->write(data);
}, [=](const QString &) {
// 请求结束后释放文件对象
file->flush();
file->close();
file->deleteLater();
if (debug) {
qDebug().noquote() << QString("下载完成，保存到: %1").arg(destinationPath);
}
if (nullptr != successHandler) {
successHandler(QString("下载完成，保存到: %1").arg(destinationPath));
}
}, errorHandler);
} else {
// 打开文件出错
if (debug) {
qDebug().noquote() << QString("打开文件出错: %1").arg(destinationPath);
}
if (nullptr != errorHandler) {
errorHandler(QString("打开文件出错: %1").arg(destinationPath));
}
}
}示例6: stream
int QMacPasteboardMimeQt3Any::registerMimeType(const QString &mime)
{
if(!mime_registry.contains(mime)) {
if(!loadMimeRegistry()) {
qWarning("QMacPasteboardMimeAnyQt3Mime: Internal error");
return 0;
}
if(!mime_registry.contains(mime)) {
if(!library_file.isOpen()) {
if(!library_file.open(QIODevice::WriteOnly)) {
qWarning("QMacPasteboardMimeAnyQt3Mime: Failure to open %s -- %s", library_file.fileName().toLatin1().constData(),
library_file.errorString().toLatin1().constData());
return false;
}
}
int ret = ++current_max;
mime_registry_loaded = QFileInfo(library_file).lastModified();
QTextStream stream(&library_file);
stream << mime << endl;
stream << ret << endl;
mime_registry.insert(mime, ret);
library_file.flush(); //flush and set mtime
return ret;
}
}
return mime_registry[mime];
}示例7: replyFinished
void Downloader::replyFinished (QNetworkReply *reply){
if(reply->error()){
qDebug() << "ERROR!";
m_stat = "ERROR!";
qDebug() << reply->errorString();
}else{
qDebug() << reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toString();
//QString name = m_image;
//make the directory here
QDir dir;
bool ok = dir.mkpath(m_path);
if(ok){
QFile *file = new QFile(m_path + m_image);
if(file->open(QFile::Append)) {
file->write(reply->readAll());
file->flush();
file->close();
m_stat = "FINISHED";
}
delete file;
}
}
reply->deleteLater();
}示例8: QString
/*!
*\~english
* Writes text to log.
*\~russian
* Пишет текст в лог.
*\~
* \param log_name - \~english Full path to logfile \~russian Полный путь к лог файлу \~
* \param test_name - \~english Test name \~russian Имя теста \~
* \param status - \~english OK, ERROR or SKIP \~russian OK, ОШИБКА или ПРОПУЩЕН \~
* \param text - \~english Comment \~russian Комментарий \~
*/
void
aTests::print2log( const QString &log_name,
const QString &test_name,
const QString &status,
const QString &text)
{
QString toWrite = QString("%1::%2::%3::%4\r\n")\
.arg(QDateTime::currentDateTime().toString(Qt::ISODate).replace('T',' '))\
.arg(test_name)\
.arg(status)\
.arg(text);
QFile f;
if(log_name==QString::null)
{
f.open( QIODevice::WriteOnly, stdout );
f.writeBlock((const char*)toWrite,strlen((const char*)toWrite));
}
else
{
f.setName(log_name);
f.open( QIODevice::WriteOnly | QIODevice::Append );
f.writeBlock((const char*)toWrite,strlen((const char*)toWrite));
f.flush();
}
f.close();
// else printf("error write to log\n");
}示例9: writeBatteryPar
bool TextHelper::writeBatteryPar(QString batteryPar)
{
QFile *dtsFile = new QFile(Global::srcPath + "/" + Global::dtsPath);
QFile *tempFile = new QFile(QDir::currentPath() + "/tmp/temp.txt");
QTextStream dtsTS(dtsFile);
QTextStream tempTS(tempFile);
if(!dtsFile->open(QIODevice::ReadOnly))
{
qDebug() << Global::srcPath + "/" + Global::dtsPath << " open fail";
return false;
}
if(!tempFile->open(QIODevice::WriteOnly))
{
qDebug() << QDir::currentPath() + "/tmp/temp.txt" << " open fail";
dtsFile->close();
return false;
}
QString strLine;
while (!dtsTS.atEnd())
{
strLine = dtsTS.readLine();
if(strLine.contains("battery {"))
{
tempTS << strLine << "\n";
strLine = dtsTS.readLine();
tempTS << strLine << "\n";
tempTS << " ocv_table = <";
QStringList strList = batteryPar.trimmed().split(" ");
for(int i = 1; i < 21; i++)
{
tempTS << strList[i -1] << " ";
if(i%7 == 0)
{
tempTS << "\n\t\t\t";
}
}
tempTS << strList[20];
tempTS << ">;\n";
dtsTS.readLine();
dtsTS.readLine();
dtsTS.readLine();
continue;
}
tempTS << strLine << "\n";
}
dtsFile->close();
tempFile->flush();
tempFile->close();
if(!dtsFile->remove())
{
qDebug() << "dtsFile remove fail";
return false;
}
if(!tempFile->copy(Global::srcPath + "/" + Global::dtsPath))
{
qDebug() << "copy fail" << Global::srcPath + "/" + Global::dtsPath;
return false;
}
return true;
}示例10: onDownload
void Scanner::onDownload(QNetworkReply* reply)
{
qDebug() << "onDownload";
m_active = false;
if(reply->error() != QNetworkReply::NoError) {
qDebug() << reply->errorString();
return;
}
qDebug() << "saving " << reply->url().toString();
QString random = (QString) qrand();
QString path = m_path + reply->url().fileName();
QFile* file = new QFile(path);
if(file->open(QIODevice::WriteOnly)) {
file->write(reply->readAll());
}
file->flush();
file->close();
delete file;
file = 0;
if(!downloadQueue.isEmpty())
BeginDownload();
return;
}示例11: Menu
void GameBoard::Menu()
{
QDialog *menu = new QDialog;
QLabel *texto = new QLabel;
QLabel *title = new QLabel("<b><big>Atalhos</big></b>");
QFile *config = new QFile("/home/vinicius/svn/unball/estrategia/visualization/Visualization Last Version/Visualization_last/Tabela.txt"); //Colocar o diretório ao qual se encontra o arquivo Tabela.txt
if(!config->open(QFile::ReadOnly | QFile::Text))
{
return;
}
QTextStream mOut(config);
QString mTexto = mOut.readAll();
texto->setText(mTexto);
QVBoxLayout *lay =new QVBoxLayout;
lay->addWidget(title);
lay->addWidget(texto);
menu->setLayout(lay);
menu->show();
config->flush();
mOut.flush();
config->close();
}示例12: processViewCaptureAck
void PortGroup::processViewCaptureAck(PbRpcController *controller)
{
QFile *capFile = static_cast<QFile*>(controller->binaryBlob());
QString viewer = appSettings->value(kWiresharkPathKey,
kWiresharkPathDefaultValue).toString();
qDebug("In %s", __FUNCTION__);
capFile->flush();
capFile->close();
if (!QFile::exists(viewer))
{
QMessageBox::warning(NULL, "Can't find Wireshark",
viewer + QString(" does not exist!\n\nPlease correct the path"
" to Wireshark in the Preferences."));
goto _exit;
}
if (!QProcess::startDetached(viewer, QStringList() << capFile->fileName()))
qDebug("Failed starting Wireshark");
_exit:
delete controller;
}示例13: save
void Global::save(QString filename)
{
GASSERT(_db != NULL, "Cannot save empty database");
QFile fd (filename);
if (!fd.open(QIODevice::WriteOnly))
GEXITDIALOG("Could not open project file for writing " + filename);
QTextStream file (&fd);
file << "VERSION=" << DB_VERSION << "\n";
file << "IMAGE_PATH=.\n"; // Images are always in the same directory as the project file
file << "QUESTIONS_PER_STUDENT=" << Global::db()->getNumQuestions() << "\n";
GASSERT(_numPagesPerStudent > 0, "_numPagesPerStudent %zu is not valid", _numPagesPerStudent);
file << "PAGES_PER_STUDENT=" << _numPagesPerStudent << "\n";
file << "TOTAL_STUDENTS=" << Global::db()->getNumStudents() << "\n";
file << "SAVE_DATE_TIME=" << QDateTime::currentDateTime().toString("yyyy-MM-dd hh:mm:ss") << "\n";
file << "NUM_IMAGES=" << Global::getPages()->size() << "\n";
if (Global::getPages()->size() != Global::db()->getNumStudents() * _numPagesPerStudent)
{
GDEBUG("Detected mismatch in number of pages %zu, number of students %zu, and number of pages per student %zu",
Global::getPages()->size(), Global::db()->getNumStudents(), _numPagesPerStudent);
GINFODIALOG("Detected page mismatch during save, but will continue anyway");
}
file << "-2\tPAGE\tPAGE\t" << -1;
for (size_t q = 0; q < Global::db()->getNumQuestions(); q++)
file << "\t" << Global::db()->getQuestionPage(q);
for (size_t q = 0; q < Global::db()->getNumQuestions(); q++)
file << "\t" << "NF"; // Emit empty feedback columns
file << "\n";
file << "-1\tMAX\tMAX\t" << Global::db()->getTotalMaximum();
for (size_t q = 0; q < Global::db()->getNumQuestions(); q++)
file << "\t" << Global::db()->getQuestionMaximum(q);
for (size_t q = 0; q < Global::db()->getNumQuestions(); q++)
file << "\t" << "NF"; // Emit empty feedback columns
file << "\n";
for (size_t s = 0; s < Global::db()->getNumStudents(); s++)
{
Student& student = Global::db()->getStudent(s);
file << s << "\t" << student.getStudentId() << "\t" << student.getStudentName();
file << "\t" << student.getTotal();
for (size_t q = 0; q < Global::db()->getNumQuestions(); q++)
file << "\t" << student.getGrade(q);
for (size_t q = 0; q < Global::db()->getNumQuestions(); q++)
file << "\t" << student.getFeedback(q);
file << "\n";
}
// Verify that the write actually worked ok
fd.flush();
if (fd.error() != QFile::NoError)
GINFODIALOG ("Failed to write out complete project file - will not exit, but you need to re-save your work!");
fd.close();
// TODO: We could also dump out the Qt table as well as a backup in a different file
}示例14: writeLog
void cLogFile::writeLog(QString msg)
{
QString date = myLocaltime.currentDateTime().toLocalTime().toString( "yyyy.MM.dd_hh:mm:ss" );
QByteArray log;
log = QByteArray((date+";"+msg+"\n").toUtf8());
file.write(log);
file.flush();
}示例15: saveToTmpFile
/* used for scripting IPC
accepts an open writable file.
returns false on failure */
bool Matrix::saveToTmpFile(QFile &fp) {
qint64 n_written;
qint64 n_write;
n_write = _nX*_nY*sizeof(double);
n_written = fp.write((char *)_z, n_write);
fp.flush();
return (n_write == n_written);
}