perf(config): get_raw with 'binary' root key

apps/emqx/src/emqx_config.erl

@@ -151,7 +151,7 @@ get_root([RootName | _]) ->
 %% @doc For the given path, get raw root value enclosed in a single-key map.
 %% key is ensured to be binary.
 get_root_raw([RootName | _]) ->
-    #{bin(RootName) => do_get_raw([RootName], #{})}.
+    #{bin(RootName) => get_raw([RootName], #{})}.
 
 %% @doc Get a config value for the given path.
 %% The path should at least include root config name.
@@ -288,9 +288,11 @@ get_default_value([RootName | _] = KeyPath) ->
     end.
 
 -spec get_raw(emqx_utils_maps:config_key_path()) -> term().
+get_raw([Root | T]) when is_atom(Root) -> get_raw([bin(Root) | T]);
 get_raw(KeyPath) -> do_get_raw(KeyPath).
 
 -spec get_raw(emqx_utils_maps:config_key_path(), term()) -> term().
+get_raw([Root | T], Default) when is_atom(Root) -> get_raw([bin(Root) | T], Default);
 get_raw(KeyPath, Default) -> do_get_raw(KeyPath, Default).
 
 -spec put_raw(map()) -> ok.

apps/emqx/test/emqx_config_handler_SUITE.erl

@@ -177,7 +177,9 @@ t_sub_key_update_remove(_Config) ->
         {ok, #{post_config_update => #{emqx_config_handler_SUITE => ok}}},
         emqx:remove_config(KeyPath)
     ),
-    ?assertError({config_not_found, KeyPath}, emqx:get_raw_config(KeyPath)),
+    ?assertError(
+        {config_not_found, [<<"sysmon">>, os, cpu_check_interval]}, emqx:get_raw_config(KeyPath)
+    ),
     OSKey = maps:keys(emqx:get_raw_config([sysmon, os])),
     ?assertEqual(false, lists:member(<<"cpu_check_interval">>, OSKey)),
     ?assert(length(OSKey) > 0),