Use emqx_config:get_env/1 to read env

src/emqx_access_control.erl

@@ -51,7 +51,7 @@ start_link() ->
 auth(Client, Password) when is_record(Client, client) ->
     auth(Client, Password, lookup_mods(auth)).
 auth(_Client, _Password, []) ->
-    case emqx_conf:get_env(allow_anonymous, false) of
+    case emqx_config:get_env(allow_anonymous, false) of
         true  -> ok;
         false -> {error, "No auth module to check!"}
     end;
@@ -73,7 +73,7 @@ check_acl(Client, PubSub, Topic) when ?PS(PubSub) ->
     check_acl(Client, PubSub, Topic, lookup_mods(acl)).
 
 check_acl(_Client, _PubSub, _Topic, []) ->
-    emqx_conf:get_env(acl_nomatch, allow);
+    emqx_config:get_env(acl_nomatch, allow);
 check_acl(Client, PubSub, Topic, [{Mod, State, _Seq}|AclMods]) ->
     case Mod:check_acl({Client, PubSub, Topic}, State) of
         allow  -> allow;

src/emqx_app.erl

@@ -63,7 +63,7 @@ print_vsn() ->
 %%--------------------------------------------------------------------
 
 register_acl_mod() ->
-    case emqx_conf:get_env(acl_file) of
+    case emqx_config:get_env(acl_file) of
         {ok, File} -> emqx_access_control:register_mod(acl, emqx_acl_internal, [File]);
         undefined  -> ok
     end.

src/emqx_bridge_sup_sup.erl

@@ -46,7 +46,7 @@ start_bridge(Node, Topic) when is_atom(Node) andalso is_binary(Topic) ->
 start_bridge(Node, _Topic, _Options) when Node =:= node() ->
     {error, bridge_to_self};
 start_bridge(Node, Topic, Options) when is_atom(Node) andalso is_binary(Topic) ->
-    {ok, BridgeEnv} = emqx_conf:get_env(bridge),
+    {ok, BridgeEnv} = emqx_config:get_env(bridge),
     Options1 = emqx_misc:merge_opts(BridgeEnv, Options),
     supervisor:start_child(?MODULE, bridge_spec(Node, Topic, Options1)).
 

src/emqx_cm.erl

@@ -20,7 +20,7 @@
 
 -include("emqx.hrl").
 
--export([start_link/1]).
+-export([start_link/0]).
 
 -export([lookup/1, reg/1, unreg/1]).
 
@@ -36,9 +36,9 @@
 %%--------------------------------------------------------------------
 
 %% @doc Start the client manager
--spec(start_link(fun()) -> {ok, pid()} | ignore | {error, term()}).
-start_link(StatsFun) ->
-    gen_server:start_link({local, ?SERVER}, ?MODULE, [StatsFun], []).
+-spec(start_link() -> {ok, pid()} | ignore | {error, term()}).
+start_link() ->
+    gen_server:start_link({local, ?SERVER}, ?MODULE, [], []).
 
 %% @doc Lookup ClientPid by ClientId
 -spec(lookup(client_id()) -> pid() | undefined).
@@ -102,9 +102,6 @@ handle_info({'DOWN', MRef, process, DownPid, _Reason}, State) ->
             {noreply, State}
     end;
 
-handle_info(stats, State) ->
-    {noreply, setstats(State), hibernate};
-
 handle_info(Info, State) ->
     emqx_log:error("[CM] Unexpected info: ~p", [Info]),
     {noreply, State}.
@@ -132,6 +129,3 @@ erase_monitor(MRef, State = #state{monitors = Monitors}) ->
     erlang:demonitor(MRef),
     State#state{monitors = dict:erase(MRef, Monitors)}.
 
-setstats(State = #state{stats_fun = StatsFun}) ->
-    StatsFun(ets:info(client, size)), State.
-

src/emqx_gc.erl

@@ -23,7 +23,7 @@
 
 -spec(conn_max_gc_count() -> integer()).
 conn_max_gc_count() ->
-    case emqx:env(conn_force_gc_count) of
+    case emqx_config:get_env(conn_force_gc_count) of
         {ok, I} when I > 0 -> I + rand:uniform(I);
         {ok, I} when I =< 0 -> undefined;
         undefined -> undefined

src/emqx_log.erl

@@ -18,34 +18,44 @@
 
 -compile({no_auto_import,[error/1]}).
 
--export([debug/1, debug/2,
-         info/1, info/2,
-         warning/1, warning/2,
-         error/1, error/2,
-         critical/1, critical/2]).
+-export([debug/1, debug/2, debug/3,
+         info/1, info/2, info/3,
+         warning/1, warning/2, warning/3,
+         error/1, error/2, error/3,
+         critical/1, critical/2, critical/3]).
 
 debug(Msg) ->
     lager:debug(Msg).
 debug(Format, Args) ->
     lager:debug(Format, Args).
+debug(Metadata, Format, Args) when is_list(Metadata) ->
+    lager:debug(Metadata, Format, Args).
 
 info(Msg) ->
     lager:info(Msg).
 info(Format, Args) ->
     lager:info(Format, Args).
+info(Metadata, Format, Args) when is_list(Metadata) ->
+    lager:info(Metadata, Format, Args).
 
 warning(Msg) ->
     lager:warning(Msg).
 warning(Format, Args) ->
     lager:warning(Format, Args).
+warning(Metadata, Format, Args) when is_list(Metadata) ->
+    lager:warning(Metadata, Format, Args).
 
 error(Msg) ->
     lager:error(Msg).
 error(Format, Args) ->
     lager:error(Format, Args).
+error(Metadata, Format, Args) when is_list(Metadata) ->
+    lager:error(Metadata, Format, Args).
 
 critical(Msg) ->
     lager:critical(Msg).
 critical(Format, Args) ->
     lager:critical(Format, Args).
+critical(Metadata, Format, Args) when is_list(Metadata) ->
+    lager:critical(Metadata, Format, Args).
 

src/emqx_modules.erl

@@ -23,11 +23,11 @@ load() ->
       fun({Mod, Env}) ->
         ok = Mod:load(Env),
         io:format("Load ~s module successfully.~n", [Mod])
-      end, emqx_conf:get_env(modules, [])).
+      end, emqx_config:get_env(modules, [])).
 
 unload() ->
     lists:foreach(
       fun({Mod, Env}) ->
           Mod:unload(Env) end,
-      emqx_conf:get_env(modules, [])).
+      emqx_config:get_env(modules, [])).
 

src/emqx_mqtt.erl

@@ -40,7 +40,7 @@ shutdown() ->
 %% @doc Start Listeners.
 -spec(start_listeners() -> ok).
 start_listeners() ->
-    lists:foreach(fun start_listener/1, emqx_conf:get_env(listeners, [])).
+    lists:foreach(fun start_listener/1, emqx_config:get_env(listeners, [])).
 
 %% Start mqtt listener
 -spec(start_listener(listener()) -> {ok, pid()} | {error, any()}).
@@ -60,7 +60,8 @@ start_listener({Proto, ListenOn, Opts}) when Proto == https; Proto == wss ->
     {ok, _} = mochiweb:start_http('mqtt:wss', ListenOn, Opts, {emqx_ws, handle_request, []}).
 
 start_listener(Proto, ListenOn, Opts) ->
-    Env = lists:append(emqx_conf:get_env(client, []), emqx_conf:get_env(protocol, [])),
+    Env = lists:append(emqx_config:get_env(client, []),
+                       emqx_config:get_env(protocol, [])),
     MFArgs = {emqx_connection, start_link, [Env]},
     {ok, _} = esockd:open(Proto, ListenOn, merge_sockopts(Opts), MFArgs).
 
@@ -76,7 +77,7 @@ is_mqtt(_Proto)     -> false.
 %% @doc Stop Listeners
 -spec(stop_listeners() -> ok).
 stop_listeners() ->
-    lists:foreach(fun stop_listener/1, emqx_conf:get_env(listeners, [])).
+    lists:foreach(fun stop_listener/1, emqx_config:get_env(listeners, [])).
 
 -spec(stop_listener(listener()) -> ok | {error, any()}).
 stop_listener({tcp, ListenOn, _Opts}) ->
@@ -96,7 +97,7 @@ stop_listener({Proto, ListenOn, _Opts}) ->
 -spec(restart_listeners() -> ok).
 restart_listeners() ->
     lists:foreach(fun restart_listener/1,
-                  emqx_conf:get_env(listeners, [])).
+                  emqx_config:get_env(listeners, [])).
 
 -spec(restart_listener(listener()) -> any()).
 restart_listener({tcp, ListenOn, _Opts}) ->

src/emqx_plugins.erl

@@ -31,7 +31,7 @@
 %% @doc Init plugins' config
 -spec(init() -> ok).
 init() ->
-    case emqx_conf:get_env(plugins_etc_dir) of
+    case emqx_config:get_env(plugins_etc_dir) of
         {ok, PluginsEtc} ->
             CfgFiles = [filename:join(PluginsEtc, File) ||
                           File <- filelib:wildcard("*.config", PluginsEtc)],
@@ -50,7 +50,7 @@ init_config(CfgFile) ->
 -spec(load() -> list() | {error, term()}).
 load() ->
     load_expand_plugins(),
-    case emqx_conf:get_env(plugins_loaded_file) of
+    case emqx_config:get_env(plugins_loaded_file) of
         {ok, File} ->
             ensure_file(File),
             with_loaded_file(File, fun(Names) -> load_plugins(Names, false) end);
@@ -60,7 +60,7 @@ load() ->
     end.
 
 load_expand_plugins() ->
-    case emqx_conf:get_env(expand_plugins_dir) of
+    case emqx_config:get_env(expand_plugins_dir) of
         {ok, Dir} ->
             PluginsDir = filelib:wildcard("*", Dir),
             lists:foreach(fun(PluginDir) ->
@@ -101,7 +101,7 @@ init_expand_plugin_config(PluginDir) ->
     end, AppsEnv).
 
 get_expand_plugin_config() ->
-    case emqx_conf:get_env(expand_plugins_dir) of
+    case emqx_config:get_env(expand_plugins_dir) of
         {ok, Dir} ->
             PluginsDir = filelib:wildcard("*", Dir),
             lists:foldl(fun(PluginDir, Acc) ->
@@ -144,7 +144,7 @@ load_plugins(Names, Persistent) ->
 %% @doc Unload all plugins before broker stopped.
 -spec(unload() -> list() | {error, term()}).
 unload() ->
-    case emqx_conf:get_env(plugins_loaded_file) of
+    case emqx_config:get_env(plugins_loaded_file) of
         {ok, File} ->
             with_loaded_file(File, fun stop_plugins/1);
         undefined ->
@@ -158,7 +158,7 @@ stop_plugins(Names) ->
 %% @doc List all available plugins
 -spec(list() -> [plugin()]).
 list() ->
-    case emqx_conf:get_env(plugins_etc_dir) of
+    case emqx_config:get_env(plugins_etc_dir) of
         {ok, PluginsEtc} ->
             CfgFiles = filelib:wildcard("*.{conf,config}", PluginsEtc) ++ get_expand_plugin_config(),
             Plugins = [plugin(CfgFile) || CfgFile <- CfgFiles],
@@ -313,7 +313,7 @@ plugin_unloaded(Name, true) ->
     end.
 
 read_loaded() ->
-    case emqx_conf:get_env(plugins_loaded_file) of
+    case emqx_config:get_env(plugins_loaded_file) of
         {ok, File} -> read_loaded(File);
         undefined  -> {error, not_found}
     end.
@@ -321,7 +321,7 @@ read_loaded() ->
 read_loaded(File) -> file:consult(File).
 
 write_loaded(AppNames) ->
-    {ok, File} = emqx_conf:get_env(plugins_loaded_file),
+    {ok, File} = emqx_config:get_env(plugins_loaded_file),
     case file:open(File, [binary, write]) of
         {ok, Fd} ->
             lists:foreach(fun(Name) ->

src/emqx_protocol.erl

@@ -549,7 +549,7 @@ authenticate(Client, Password) ->
 
 %% PUBLISH ACL is cached in process dictionary.
 check_acl(publish, Topic, Client) ->
-    IfCache = emqx_conf:get_env(cache_acl, true),
+    IfCache = emqx_config:get_env(cache_acl, true),
     case {IfCache, get({acl, publish, Topic})} of
         {true, undefined} ->
             AllowDeny = emqx_access_control:check_acl(Client, publish, Topic),

src/emqx_session.erl

@@ -271,8 +271,8 @@ init(#{clean_start := CleanStart,
     process_flag(trap_exit, true),
     true = link(ClientPid),
     init_stats([deliver_msg, enqueue_msg]),
-    {ok, Env} = emqx_conf:get_env(session),
-    {ok, QEnv} = emqx_conf:get_env(mqueue),
+    {ok, Env} = emqx_config:get_env(session),
+    {ok, QEnv} = emqx_config:get_env(mqueue),
     MaxInflight = get_value(max_inflight, Env, 0),
     EnableStats = get_value(enable_stats, Env, false),
     IgnoreLoopDeliver = get_value(ignore_loop_deliver, Env, false),

src/emqx_sysmon_sup.erl

@@ -28,7 +28,7 @@ start_link() ->
     supervisor:start_link({local, ?MODULE}, ?MODULE, []).
 
 init([]) ->
-    {ok, Env} = emqx_conf:get_env(sysmon),
+    {ok, Env} = emqx_config:get_env(sysmon),
     Sysmon = {sysmon, {emqx_sysmon, start_link, [Env]},
               permanent, 5000, worker, [emqx_sysmon]},
     {ok, {{one_for_one, 10, 100}, [Sysmon]}}.

src/emqx_tracer.erl

@@ -91,7 +91,7 @@ all_traces() ->
 %%--------------------------------------------------------------------
 
 init([]) ->
-    {ok, #state{level = emqx_conf:get_env(trace_level, debug), traces = #{}}}.
+    {ok, #state{level = emqx_config:get_env(trace_level, debug), traces = #{}}}.
 
 handle_call({start_trace, Who, LogFile}, _From, State = #state{level = Level, traces = Traces}) ->
     case lager:trace_file(LogFile, [Who], Level, ?OPTIONS) of

src/emqx_ws.erl

@@ -45,7 +45,7 @@ handle_request('GET', "/mqtt", Req) ->
         {true, "mqtt" ++ _Vsn} ->
             case Req:get(peername) of
                 {ok, Peername} ->
-                    {ok, ProtoEnv} = emqx_conf:get_env(protocol),
+                    {ok, ProtoEnv} = emqx_config:get_env(protocol),
                     PacketSize = get_value(max_packet_size, ProtoEnv, ?MAX_PACKET_SIZE),
                     Parser = emqx_parser:initial_state(PacketSize),
                     %% Upgrade WebSocket.
@@ -72,11 +72,11 @@ handle_request(Method, Path, Req) ->
     Req:not_found().
 
 is_websocket(Upgrade) ->
-    (not emqx_conf:get_env(websocket_check_upgrade_header, true)) orelse
+    (not emqx_config:get_env(websocket_check_upgrade_header, true)) orelse
         (Upgrade =/= undefined andalso string:to_lower(Upgrade) =:= "websocket").
 
 check_protocol_header(Req) ->
-    case emqx_conf:get_env(websocket_protocol_header, false) of
+    case emqx_config:get_env(websocket_protocol_header, false) of
         true  -> get_protocol_header(Req);
         false -> "mqtt-v3.1.1"
     end.

src/emqx_ws_connection_sup.erl

@@ -37,7 +37,7 @@ start_connection(WsPid, Req, ReplyChannel) ->
 
 init([]) ->
     %%TODO: Cannot upgrade the environments, Use zone?
-    Env = lists:append(emqx_conf:get_env(client, []), emqx_conf:get_env(protocol, [])),
+    Env = lists:append(emqx_config:get_env(client, []), emqx_config:get_env(protocol, [])),
     {ok, {{simple_one_for_one, 0, 1},
            [{ws_connection, {emqx_ws_connection, start_link, [Env]},
              temporary, 5000, worker, [emqx_ws_connection]}]}}.