NZMQT_INLINE void PollingZMQContext::run()
{
if (m_stopped)
return;
try
{
poll();
}
catch (const ZMQException& ex)
{
qWarning("Exception during poll: %s", ex.what());
emit pollError(ex.num(), ex.what());
}
if (!m_stopped)
QTimer::singleShot(m_interval, this, &PollingZMQContext::run);
}
void LongPollManager::handlePollFinished ()
{
auto reply = qobject_cast<QNetworkReply*> (sender ());
reply->deleteLater ();
if (reply->error () != QNetworkReply::NoError)
{
++PollErrorCount_;
qWarning () << Q_FUNC_INFO
<< "network error:"
<< reply->error ()
<< reply->errorString ()
<< "; error count:"
<< PollErrorCount_;
switch (reply->error ())
{
case QNetworkReply::RemoteHostClosedError:
{
const auto diff = LastPollDT_.secsTo (QDateTime::currentDateTime ());
const auto newTimeout = std::max ((diff + WaitTimeout_) / 2 - 1, 5);
qWarning () << Q_FUNC_INFO
<< "got timeout with"
<< WaitTimeout_
<< diff
<< "; new timeout:"
<< newTimeout;
WaitTimeout_ = newTimeout;
break;
}
default:
if (PollErrorCount_ == 4)
emit pollError ();
break;
}
Poll ();
return;
}
else if (PollErrorCount_)
{
qDebug () << Q_FUNC_INFO
<< "finally successful network reply after"
<< PollErrorCount_
<< "errors";
PollErrorCount_ = 0;
emit listening ();
}
const auto& data = QJson::Parser ().parse (reply);
const auto& rootMap = data.toMap ();
if (rootMap.contains ("failed"))
{
ForceServerRequery ();
start ();
return;
}
emit gotPollData (rootMap);
LPTS_ = rootMap ["ts"].toULongLong ();
if (!ShouldStop_)
{
if (!LPServer_.isEmpty ())
Poll ();
else
start ();
}
else
emit stopped ();
}
