conn_mgr: race connection probes and report call path with correct RTT

tools/chatgui/src/callwindow.cpp

@@ -161,6 +161,10 @@ CallWindow::CallWindow(QWidget* parent)
     m_bgpPathLabel->setWordWrap(true);
     m_bgpPathLabel->setStyleSheet("color: gray; font-size: 11px;");
     m_bgpPathLabel->hide();
+    m_connectionLabel = new QLabel(this);
+    m_connectionLabel->setAlignment(Qt::AlignCenter);
+    m_connectionLabel->setStyleSheet("color: gray; font-size: 13px;");
+    setConnectionType(0, 0);
     m_statsLabel = new QLabel(this);
     m_statsLabel->setAlignment(Qt::AlignCenter);
     m_statsLabel->setWordWrap(true);
@@ -185,6 +189,7 @@ CallWindow::CallWindow(QWidget* parent)
     lay->addWidget(m_peerLabel);
     lay->addWidget(m_statusLabel);
     lay->addWidget(m_durationLabel);
+    lay->addWidget(m_connectionLabel);
     lay->addWidget(m_bgpPathLabel);
     lay->addWidget(m_statsLabel);
     lay->addStretch(1);
@@ -231,6 +236,13 @@ void CallWindow::setBgpPath(const QString& path) {
     m_bgpPathLabel->setVisible(!path.isEmpty());
 }
 
+void CallWindow::setConnectionType(uint8_t type, quint64 nextHop) {
+    const QString names[] = { QStringLiteral("нет подключения"), QStringLiteral("прямое"),
+                              QStringLiteral("reverse"), QStringLiteral("indirect") };
+    m_connectionLabel->setText(QStringLiteral("Подключение: %1").arg(names[type <= 3 ? type : 0]));
+    m_connectionLabel->setToolTip(type == 3 ? QStringLiteral("Посредник: 0x%1").arg(nextHop, 16, 16, QChar('0')) : QString());
+}
+
 void CallWindow::setState(State s) {
     m_state = s;
     switch (s) {
@@ -256,6 +268,7 @@ void CallWindow::setState(State s) {
         m_muteBtn->setChecked(false);
         break;
     case Ended:
+        setConnectionType(0, 0);
         m_statusLabel->setText(QStringLiteral("Завершён"));
         m_durationTimer->stop();
         break;