[fix] fix crash when transmission id does not exist

src/single_window/connection_status_window.cpp

@@ -3,7 +3,7 @@
 #include "rd_log.h"
 #include "render.h"
 
-int Render::ConnectionStatusWindow(
+bool Render::ConnectionStatusWindow(
     std::shared_ptr<SubStreamWindowProperties> &props) {
   if (show_connection_status_window_) {
     const ImGuiViewport *viewport = ImGui::GetMainViewport();
@@ -160,7 +160,7 @@ int Render::ConnectionStatusWindow(
         show_connection_status_window_ = false;
         re_enter_remote_id_ = true;
         DestroyPeer(&props->peer_);
-        client_properties_.erase(props->remote_id_);
+        return true;
       }
     }
 
@@ -175,5 +175,5 @@ int Render::ConnectionStatusWindow(
     ImGui::End();
     ImGui::PopStyleVar();
   }
-  return 0;
+  return false;
 }

src/single_window/main_window.cpp

@@ -29,8 +29,13 @@ int Render::MainWindow() {
   RecentConnectionsWindow();
   StatusBar();
 
-  for (auto& it : client_properties_) {
-    ConnectionStatusWindow(it.second);
+  for (auto it = client_properties_.begin(); it != client_properties_.end();) {
+    auto& props = it->second;
+    if (ConnectionStatusWindow(props)) {
+      it = client_properties_.erase(it);
+    } else {
+      ++it;
+    }
   }
 
   return 0;

src/single_window/render.h

@@ -151,7 +151,8 @@ class Render {
   int ControlBar(std::shared_ptr<SubStreamWindowProperties> &props);
   int AboutWindow();
   int StatusBar();
-  int ConnectionStatusWindow(std::shared_ptr<SubStreamWindowProperties> &props);
+  bool ConnectionStatusWindow(
+      std::shared_ptr<SubStreamWindowProperties> &props);
   int ShowRecentConnections();
 
  private: