Method onClientDisconnected

src/core/TciServer.cpp:467–523

}

void TciServer::onClientDisconnected()
{
    auto* ws = qobject_cast<QWebSocket*>(sender());
    if (!ws) return;

    for (int i = 0; i < m_clients.size(); ++i) {
        if (m_clients[i].socket == ws) {
            // If this client was driving TX_CHRONO, stop and unkey
            if (ws == m_txChronoClient) {
                stopTxChrono();
                if (m_model) {
                    QMetaObject::invokeMethod(m_model, [this]() {
                        m_model->setTransmit(false);
                    }, Qt::QueuedConnection);
                }
            }
            // Clean up IQ stream if this client started one
            if (m_clients[i].iqEnabled && m_model) {
                int ch = m_clients[i].iqChannel + 1;  // TRX 0 → DAX channel 1
                // Only remove if no other client uses the same IQ channel
                bool otherUsing = false;
                for (int j = 0; j < m_clients.size(); ++j) {
                    if (j != i && m_clients[j].iqEnabled &&
                        m_clients[j].iqChannel == m_clients[i].iqChannel) {
                        otherUsing = true;
                        break;
                    }
                }
                if (!otherUsing) {
                    QMetaObject::invokeMethod(m_model, [this, ch]() {
                        m_model->daxIqModel().removeStream(ch);
                    }, Qt::QueuedConnection);
                }
            }
            delete m_clients[i].protocol;
            qDeleteAll(m_clients[i].resamplers);
            m_clients.removeAt(i);

            // Release DAX if no remaining clients want audio (#1331)
            bool anyAudio = false;
            for (const auto& cs : m_clients) {
                if (cs.audioEnabled) { anyAudio = true; break; }
            }
            if (!anyAudio) scheduleDaxRelease();  // debounce: survive transient WSJT-X reconnects
            break;
        }
    }

    ws->deleteLater();
    // DIAG: qCWarning — a TCP-level client drop (WSJT-X threw a rig-control
    // error in do_stop()) is the trigger for the DAX RX teardown above. Always
    // log it so the cause of mid-session RX loss is visible.
    qCWarning(lcCat) << "TciServer: client disconnected (TCP drop),"
                     << m_clients.size() << "remaining";
    emit clientCountChanged(m_clients.size());
    emit clientsChanged();
}