[feat] use reliable transmission to send control info

src/gui/panels/remote_peer_panel.cpp

@@ -207,6 +207,7 @@ int Render::ConnectTo(const std::string& remote_id, const char* password,
         }
         AddAudioStream(props->peer_, props->audio_label_.c_str());
         AddDataStream(props->peer_, props->data_label_.c_str(), false);
+        AddDataStream(props->peer_, props->control_data_label_.c_str(), true);
         AddDataStream(props->peer_, props->file_label_.c_str(), true);
         AddDataStream(props->peer_, props->file_feedback_label_.c_str(), true);
         AddDataStream(props->peer_, props->clipboard_label_.c_str(), true);

src/gui/render.cpp

@@ -716,6 +716,7 @@ int Render::CreateConnectionPeer() {
 
     AddAudioStream(peer_, audio_label_.c_str());
     AddDataStream(peer_, data_label_.c_str(), false);
+    AddDataStream(peer_, control_data_label_.c_str(), true);
     AddDataStream(peer_, file_label_.c_str(), true);
     AddDataStream(peer_, file_feedback_label_.c_str(), true);
     AddDataStream(peer_, clipboard_label_.c_str(), true);
@@ -1375,8 +1376,8 @@ void Render::MainLoop() {
       remote_action.i.host_name_size = host_name.size();
 
       std::string msg = remote_action.to_json();
-      int ret =
+      int ret = SendDataFrame(peer_, msg.data(), msg.size(),
-          SendDataFrame(peer_, msg.data(), msg.size(), data_label_.c_str());
+                              control_data_label_.c_str());
       FreeRemoteAction(remote_action);
       if (0 == ret) {
         need_to_send_host_info_ = false;

src/gui/render.h

@@ -48,6 +48,7 @@ class Render {
     std::string audio_label_ = "control_audio";
     std::string data_label_ = "control_data";
     std::string file_label_ = "file";
+    std::string control_data_label_ = "control_data";
     std::string file_feedback_label_ = "file_feedback";
     std::string clipboard_label_ = "clipboard";
     std::string local_id_ = "";

src/gui/toolbars/control_bar.cpp

@@ -96,7 +96,7 @@ int Render::ControlBar(std::shared_ptr<SubStreamWindowProperties>& props) {
           if (props->connection_status_ == ConnectionStatus::Connected) {
             std::string msg = remote_action.to_json();
             SendDataFrame(props->peer_, msg.c_str(), msg.size(),
-                          props->data_label_.c_str());
+                          props->control_data_label_.c_str());
           }
         }
         props->display_selectable_hovered_ = ImGui::IsWindowHovered();
@@ -177,7 +177,7 @@ int Render::ControlBar(std::shared_ptr<SubStreamWindowProperties>& props) {
         remote_action.a = props->audio_capture_button_pressed_;
         std::string msg = remote_action.to_json();
         SendDataFrame(props->peer_, msg.c_str(), msg.size(),
-                      props->data_label_.c_str());
+                      props->control_data_label_.c_str());
       }
     }