fix(Workspaces): check thread is running before parse response

src/modules/sway/workspaces.cpp

@@ -28,8 +28,10 @@ void waybar::modules::sway::Workspaces::worker()
       {
         std::lock_guard<std::mutex> lock(mutex_);
         auto res = ipc_.sendCmd(IPC_GET_WORKSPACES);
+        if (thread_.isRunning()) {
           workspaces_ = parser_.parse(res.payload);
         }
+      }
       dp.emit();
     } catch (const std::exception& e) {
       std::cerr << "Workspaces: " << e.what() << std::endl;