qint64 UploadDevice::readData(char* data, qint64 maxlen) {
//qDebug() << Q_FUNC_INFO << maxlen << _read << _size << _bandwidthQuota;
if (_data.size() - _read <= 0) {
// at end
if (_bandwidthManager) {
_bandwidthManager->unregisterUploadDevice(this);
}
return -1;
}
maxlen = qMin(maxlen, _data.size() - _read);
if (maxlen == 0) {
return 0;
}
if (isChoked()) {
return 0;
}
if (isBandwidthLimited()) {
maxlen = qMin(maxlen, _bandwidthQuota);
if (maxlen <= 0) { // no quota
//qDebug() << "no quota";
return 0;
}
_bandwidthQuota -= maxlen;
}
std::memcpy(data, _data.data()+_read, maxlen);
_read += maxlen;
return maxlen;
}
qint64 UploadDevice::readData(char* data, qint64 maxlen) {
if (_file.isNull()) {
qDebug() << Q_FUNC_INFO << "Upload file object deleted during upload";
close();
return -1;
}
_file.data()->seek(_start + _read);
//qDebug() << Q_FUNC_INFO << maxlen << _read << _size << _bandwidthQuota;
if (_size - _read <= 0) {
// at end
qDebug() << Q_FUNC_INFO << _read << _size << _bandwidthQuota << "at end";
_bandwidthManager->unregisterUploadDevice(this);
return -1;
}
maxlen = qMin(maxlen, _size - _read);
if (maxlen == 0) {
return 0;
}
if (isChoked()) {
qDebug() << Q_FUNC_INFO << this << "Upload Choked";
return 0;
}
if (isBandwidthLimited()) {
qDebug() << Q_FUNC_INFO << "BW LIMITED" << maxlen << _bandwidthQuota
<< qMin(maxlen, _bandwidthQuota);
maxlen = qMin(maxlen, _bandwidthQuota);
if (maxlen <= 0) { // no quota
qDebug() << Q_FUNC_INFO << "no quota";
return 0;
}
_bandwidthQuota -= maxlen;
}
qDebug() << Q_FUNC_INFO << "reading limited=" << isBandwidthLimited()
<< "maxlen=" << maxlen << "quota=" << _bandwidthQuota;
qint64 ret = _file.data()->read(data, maxlen);
//qDebug() << Q_FUNC_INFO << "returning " << ret;
if (ret < 0)
return -1;
_read += ret;
//qDebug() << Q_FUNC_INFO << "returning2 " << ret << _read;
return ret;
}
