QHttpResponse::allBytesWritten stops emiting when writing #38
Description
The "QHttpResponse::allBytesWritten" signal is emited only a few times when manually writing data to the client. This leads to incomplete downloads.
`req->onEnd(this, req, res {
QFile* f = new QFile(filename); // a file of some MB size
if (f->open(QFile::ReadOnly))
{
res->addHeader("content-length", QString::number(f->size()).toLatin1());
res->addHeader("content-type", "application/octet-stream");
res->addHeader("content-disposition", QStringLiteral("attachment; filename=\"%1\"").arg(info.fileName()).toLatin1());
//res->addHeader("connection", "Keep-Alive");
//res->addHeader("keep-alive", "timeout=600, max=100");
res->setStatusCode(qhttp::ESTATUS_OK);
connect(res, &QHttpResponse::allBytesWritten, this, [this, f, res] {
qDebug() << "Write more... " << f->pos(); // called only a few times
QByteArray data = f->read(50000);
if (data.length() == 0)
{
qDebug() << "END"; // never called
res->end();
f->close();
f->deleteLater();
}
else
{
res->write(data); // called a few times
}
});
QByteArray data = f->read(50000);
if (data.length() > 0)
{
res->write(data);
return;
}
else
{
f->close();
}
}
f->deleteLater();
});`