From 75197a11a850a8d0be3c39ec6573037d19dda671 Mon Sep 17 00:00:00 2001
From: mvglasow <michael -at- vonglasow.com>
Date: Tue, 8 Jul 2025 22:50:54 +0300
Subject: [PATCH] [traffic] Consider routing MWMs when updating subscriptions
 on resume

Signed-off-by: mvglasow <michael -at- vonglasow.com>
---
 map/traffic_manager.cpp | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/map/traffic_manager.cpp b/map/traffic_manager.cpp
index c7068c921..07b5cab21 100644
--- a/map/traffic_manager.cpp
+++ b/map/traffic_manager.cpp
@@ -341,7 +341,24 @@ void TrafficManager::RecalculateSubscription()
     UpdateViewport(m_currentModelView.first);
   if (m_currentPosition.second)
     UpdateMyPosition(m_currentPosition.first);
-  // TODO update routing – if needed
+
+  {
+    std::lock_guard<std::mutex> lock(m_mutex);
+
+    /*
+     * If UpdateViewport() or UpdateMyPosition() had changes, they would also have updated the
+     * routing MWMs and reset m_activeMwmsChanged. If neither of them had changes and
+     * m_activeMwmsChanged is true, it indicates changes in route MWMs which we need to process.
+     */
+    if (m_activeMwmsChanged)
+    {
+      if ((m_activeDrapeMwms.empty() && m_activePositionMwms.empty() && m_activeRoutingMwms.empty())
+          || IsInvalidState() || m_isPaused)
+        return;
+
+      m_condition.notify_one();
+    }
+  }
 }
 
 void TrafficManager::Invalidate(MwmSet::MwmId const & mwmId)