handle client disconnection without crashing

src/remote.cc

@@ -334,6 +334,8 @@ bool RemoteUI::is_key_available()
 }
 
 Key RemoteUI::get_key()
+{
+    try
     {
         Key key = read<Key>(m_socket_watcher.fd());
         if (key.modifiers == resize_modifier)
@@ -343,6 +345,16 @@ Key RemoteUI::get_key()
         }
         return key;
     }
+    catch (peer_disconnected&)
+    {
+        throw client_removed{};
+    }
+    catch (socket_error&)
+    {
+        write_debug("ungraceful deconnection detected");
+        throw client_removed{};
+    }
+}
 
 DisplayCoord RemoteUI::dimensions()
 {