Replace macro QOS$i to QOS_$I

The two styles of qos macro name in one project is chaotic. It is not
a good practice.

So I change the QOS$i to QOS_$i

include/emqx_mqtt.hrl

@@ -43,11 +43,7 @@
 -define(QOS_1, 1). %% At least once
 -define(QOS_2, 2). %% Exactly once
 
--define(QOS0, 0). %% At most once
--define(QOS1, 1). %% At least once
--define(QOS2, 2). %% Exactly once
-
--define(IS_QOS(I), (I >= ?QOS0 andalso I =< ?QOS2)).
+-define(IS_QOS(I), (I >= ?QOS_0 andalso I =< ?QOS_2)).
 
 -define(QOS_I(Name),
     begin

src/emqx_auth_mod.erl

@@ -39,4 +39,3 @@ behaviour_info(_Other) ->
     undefined.
 
 -endif.
-

src/emqx_bridge.erl

@@ -30,11 +30,11 @@
 -export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2,
          code_change/3]).
 
--record(state, {client_pid, options, reconnect_interval, 
+-record(state, {client_pid, options, reconnect_interval,
                 mountpoint, queue, mqueue_type, max_pending_messages,
                 forwards = [], subscriptions = []}).
 
--record(mqtt_msg, {qos = ?QOS0, retain = false, dup = false,
+-record(mqtt_msg, {qos = ?QOS_0, retain = false, dup = false,
                    packet_id, topic, props, payload}).
 
 start_link(Name, Options) ->

src/emqx_client.erl

@@ -95,7 +95,7 @@
                 | {force_ping, boolean()}
                 | {properties, properties()}).
 
--record(mqtt_msg, {qos = ?QOS0, retain = false, dup = false,
+-record(mqtt_msg, {qos = ?QOS_0, retain = false, dup = false,
                    packet_id, topic, props, payload}).
 
 -type(mqtt_msg() :: #mqtt_msg{}).
@@ -1217,7 +1217,7 @@ retry_send([{Type, Msg, Ts} | Msgs], Now, State = #state{retry_interval = Interv
 
 retry_send(publish, Msg = #mqtt_msg{qos = QoS, packet_id = PacketId},
            Now, State = #state{inflight = Inflight}) ->
-    Msg1 = Msg#mqtt_msg{dup = (QoS =:= ?QOS1)},
+    Msg1 = Msg#mqtt_msg{dup = (QoS =:= ?QOS_1)},
     case send(Msg1, State) of
         {ok, NewState} ->
             Inflight1 = emqx_inflight:update(PacketId, {publish, Msg1, Now}, Inflight),

src/emqx_message.erl

@@ -34,7 +34,7 @@ make(Topic, Payload) ->
 -spec(make(atom() | emqx_types:client_id(), emqx_topic:topic(), emqx_types:payload())
       -> emqx_types:message()).
 make(From, Topic, Payload) ->
-    make(From, ?QOS0, Topic, Payload).
+    make(From, ?QOS_0, Topic, Payload).
 
 -spec(make(atom() | emqx_types:client_id(), emqx_mqtt_types:qos(),
            emqx_topic:topic(), emqx_types:payload()) -> emqx_types:message()).
@@ -47,7 +47,7 @@ make(From, QoS, Topic, Payload) ->
              payload    = Payload,
              timestamp  = os:timestamp()}.
 
-msgid(?QOS0) -> undefined;
+msgid(?QOS_0) -> undefined;
 msgid(_QoS)  -> emqx_guid:gen().
 
 set_flags(Flags, Msg = #message{flags = undefined}) when is_map(Flags) ->

src/emqx_mqtt_types.erl

@@ -22,7 +22,7 @@
 -export_type([topic_filters/0]).
 -export_type([packet_id/0, packet_type/0, packet/0]).
 
--type(qos() :: ?QOS0 | ?QOS1 | ?QOS2).
+-type(qos() :: ?QOS_0 | ?QOS_1 | ?QOS_2).
 -type(version() :: ?MQTT_PROTO_V3 | ?MQTT_PROTO_V4 | ?MQTT_PROTO_V5).
 -type(qos_name() :: qos0 | at_most_once |
                     qos1 | at_least_once |
@@ -40,4 +40,3 @@
                     }).
 -type(topic_filters() :: [{emqx_topic:topic(), subopts()}]).
 -type(packet() :: #mqtt_packet{}).
-

src/emqx_mqueue.erl

@@ -89,13 +89,13 @@
 -opaque(mqueue() :: #mqueue{}).
 
 -spec(init(options()) -> mqueue()).
-init(Opts = #{max_len := MaxLen0, store_qos0 := QoS0}) ->
+init(Opts = #{max_len := MaxLen0, store_qos0 := QoS_0}) ->
     MaxLen = case (is_integer(MaxLen0) andalso MaxLen0 > ?MAX_LEN_INFINITY) of
                  true -> MaxLen0;
                  false -> ?MAX_LEN_INFINITY
              end,
     #mqueue{max_len = MaxLen,
-            store_qos0 = QoS0,
+            store_qos0 = QoS_0,
             p_table = get_opt(priorities, Opts, ?NO_PRIORITY_TABLE),
             default_p = get_priority_opt(Opts)
            }.
@@ -165,4 +165,3 @@ get_priority_opt(Opts) ->
 %% while the highest 'infinity' is a [{infinity, queue:queue()}]
 get_priority(_Topic, ?NO_PRIORITY_TABLE, _) -> ?LOWEST_PRIORITY;
 get_priority(Topic, PTab, Dp) -> maps:get(Topic, PTab, Dp).
-

src/emqx_packet.erl

@@ -103,7 +103,7 @@ validate_properties(_, _) ->
 validate_subscription({Topic, #{qos := QoS}}) ->
     emqx_topic:validate(filter, Topic) andalso validate_qos(QoS).
 
-validate_qos(QoS) when ?QOS0 =< QoS, QoS =< ?QOS2 ->
+validate_qos(QoS) when ?QOS_0 =< QoS, QoS =< ?QOS_2 ->
     true;
 validate_qos(_) -> error(bad_qos).
 

src/emqx_reason_codes.erl

@@ -138,5 +138,5 @@ compat(connack, 16#9C) -> ?CONNACK_SERVER;
 compat(connack, 16#9D) -> ?CONNACK_SERVER;
 compat(connack, 16#9F) -> ?CONNACK_SERVER;
 
-compat(suback, Code) when Code =< ?QOS2 -> Code;
+compat(suback, Code) when Code =< ?QOS_2 -> Code;
 compat(suback, Code) when Code >= 16#80  -> 16#80.

src/emqx_session.erl

@@ -517,7 +517,7 @@ handle_cast({pubcomp, PacketId, _ReasonCode}, State = #state{inflight = Inflight
 handle_cast({resume, #{conn_pid            := ConnPid,
                        will_msg            := WillMsg,
                        expiry_interval     := SessionExpiryInterval,
-                       max_inflight        := MaxInflight, 
+                       max_inflight        := MaxInflight,
                        topic_alias_maximum := TopicAliasMaximum}}, State = #state{client_id        = ClientId,
                                                                                   conn_pid         = OldConnPid,
                                                                                   clean_start      = CleanStart,
@@ -547,7 +547,7 @@ handle_cast({resume, #{conn_pid            := ConnPid,
                          await_rel_timer     = undefined,
                          expiry_timer        = undefined,
                          expiry_interval     = SessionExpiryInterval,
-                         inflight            = emqx_inflight:update_size(MaxInflight, State#state.inflight), 
+                         inflight            = emqx_inflight:update_size(MaxInflight, State#state.inflight),
                          topic_alias_maximum = TopicAliasMaximum,
                          will_delay_timer    = undefined,
                          will_msg            = WillMsg},
@@ -574,10 +574,10 @@ handle_info({dispatch, Topic, Msgs}, State) when is_list(Msgs) ->
                           end, State, Msgs)};
 
 %% Dispatch message
-handle_info({dispatch, Topic, Msg = #message{headers = Headers}}, 
+handle_info({dispatch, Topic, Msg = #message{headers = Headers}},
             State = #state{subscriptions = SubMap, topic_alias_maximum = TopicAliasMaximum}) when is_record(Msg, message) ->
     TopicAlias = maps:get('Topic-Alias', Headers, undefined),
-    if 
+    if
         TopicAlias =:= undefined orelse TopicAlias =< TopicAliasMaximum ->
             noreply(case maps:find(Topic, SubMap) of
                         {ok, #{nl := Nl, qos := QoS, rap := Rap, subid := SubId}} ->
@@ -802,13 +802,13 @@ dispatch(Msg, State = #state{client_id = ClientId, conn_pid = undefined}) ->
     end;
 
 %% Deliver qos0 message directly to client
-dispatch(Msg = #message{qos = ?QOS0} = Msg, State) ->
+dispatch(Msg = #message{qos = ?QOS_0} = Msg, State) ->
     deliver(undefined, Msg, State),
     inc_stats(deliver, Msg, State);
 
 dispatch(Msg = #message{qos = QoS} = Msg,
          State = #state{next_pkt_id = PacketId, inflight = Inflight})
-  when QoS =:= ?QOS1 orelse QoS =:= ?QOS2 ->
+  when QoS =:= ?QOS_1 orelse QoS =:= ?QOS_2 ->
     case emqx_inflight:is_full(Inflight) of
         true -> enqueue_msg(Msg, State);
         false ->
@@ -825,7 +825,7 @@ enqueue_msg(Msg, State = #state{mqueue = Q}) ->
 %%------------------------------------------------------------------------------
 
 redeliver({PacketId, Msg = #message{qos = QoS}}, State) ->
-    deliver(PacketId, if QoS =:= ?QOS2 -> Msg;
+    deliver(PacketId, if QoS =:= ?QOS_2 -> Msg;
                          true -> emqx_message:set_flag(dup, Msg)
                       end, State);
 
@@ -974,4 +974,3 @@ noreply(State) ->
 
 shutdown(Reason, State) ->
     {stop, {shutdown, Reason}, State}.
-

test/emqx_frame_SUITE.erl

@@ -100,7 +100,7 @@ serialize_parse_connect(_) ->
     ?assertEqual({ok, Packet1, <<>>}, parse_serialize(Packet1)),
     Packet2 = ?CONNECT_PACKET(#mqtt_packet_connect{
                                  client_id    = <<"clientId">>,
-                                 will_qos     = ?QOS1,
+                                 will_qos     = ?QOS_1,
                                  will_flag    = true,
                                  will_retain  = true,
                                  will_topic   = <<"will">>,
@@ -427,4 +427,3 @@ parse(Bin, Opts) when is_map(Opts) ->
 
 payload() ->
     iolist_to_binary(["payload." || _I <- lists:seq(1, 1000)]).
-

test/emqx_message_SUITE.erl

@@ -35,7 +35,7 @@ all() ->
 message_make(_) ->
     Msg = emqx_message:make(<<"clientid">>, <<"topic">>, <<"payload">>),
     ?assertEqual(0, Msg#message.qos),
-    Msg1 = emqx_message:make(<<"clientid">>, ?QOS2, <<"topic">>, <<"payload">>),
+    Msg1 = emqx_message:make(<<"clientid">>, ?QOS_2, <<"topic">>, <<"payload">>),
     ?assert(is_binary(Msg1#message.id)),
     ?assertEqual(2, Msg1#message.qos).
 

test/emqx_mountpoint_SUITE.erl

@@ -28,8 +28,8 @@ t_mount_unmount(_) ->
     Msg = emqx_message:make(<<"clientid">>, <<"topic">>, <<"payload">>),
     Msg2 = emqx_mountpoint:mount(<<"mount">>, Msg),
     ?assertEqual(<<"mounttopic">>, Msg2#message.topic),
-    TopicFilter = [{<<"mounttopic">>, #{qos => ?QOS2}}],
-    TopicFilter = emqx_mountpoint:mount(<<"mount">>, [{<<"topic">>, #{qos => ?QOS2}}]),
+    TopicFilter = [{<<"mounttopic">>, #{qos => ?QOS_2}}],
+    TopicFilter = emqx_mountpoint:mount(<<"mount">>, [{<<"topic">>, #{qos => ?QOS_2}}]),
     Msg = emqx_mountpoint:unmount(<<"mount">>, Msg2).
 
 t_replvar(_) ->

test/emqx_packet_SUITE.erl

@@ -44,7 +44,7 @@ packet_type_name(_) ->
     ?assertEqual('UNSUBSCRIBE', emqx_packet:type_name(?UNSUBSCRIBE)).
 
 packet_validate(_) ->
-    ?assert(emqx_packet:validate(?SUBSCRIBE_PACKET(15, #{'Subscription-Identifier' => 1}, [{<<"topic">>, #{qos => ?QOS0}}]))),
+    ?assert(emqx_packet:validate(?SUBSCRIBE_PACKET(15, #{'Subscription-Identifier' => 1}, [{<<"topic">>, #{qos => ?QOS_0}}]))),
     ?assert(emqx_packet:validate(?UNSUBSCRIBE_PACKET(89, [<<"topic">>]))),
     ?assert(emqx_packet:validate(?CONNECT_PACKET(#mqtt_packet_connect{}))),
     ?assert(emqx_packet:validate(?PUBLISH_PACKET(1, <<"topic">>, 1, #{'Response-Topic' => <<"responsetopic">>, 'Topic-Alias' => 1}, <<"payload">>))),
@@ -52,7 +52,7 @@ packet_validate(_) ->
     ?assertError(subscription_identifier_invalid,
                  emqx_packet:validate(
                    ?SUBSCRIBE_PACKET(15, #{'Subscription-Identifier' => -1},
-                                     [{<<"topic">>, #{qos => ?QOS0}}]))),
+                                     [{<<"topic">>, #{qos => ?QOS_0}}]))),
     ?assertError(topic_filters_invalid,
                  emqx_packet:validate(?UNSUBSCRIBE_PACKET(1,[]))),
     ?assertError(topic_name_invalid,
@@ -90,14 +90,14 @@ packet_validate(_) ->
 
 packet_message(_) ->
     Pkt = #mqtt_packet{header = #mqtt_packet_header{type   = ?PUBLISH,
-                                                    qos    = ?QOS0,
+                                                    qos    = ?QOS_0,
                                                     retain = false,
                                                     dup    = false},
                        variable = #mqtt_packet_publish{topic_name = <<"topic">>,
                                                        packet_id  = 10,
                                                        properties = #{}},
                        payload = <<"payload">>},
-    Msg = emqx_message:make(<<"clientid">>, ?QOS0, <<"topic">>, <<"payload">>),
+    Msg = emqx_message:make(<<"clientid">>, ?QOS_0, <<"topic">>, <<"payload">>),
     Msg2 = emqx_message:set_flag(retain, false, Msg),
     Pkt = emqx_packet:from_message(10, Msg2),
     Msg3 = emqx_message:set_header(username, "test", Msg2),
@@ -112,8 +112,8 @@ packet_format(_) ->
     io:format("~s", [emqx_packet:format(?PUBLISH_PACKET(?QOS_2, <<"topic">>, 10, <<"payload">>))]),
     io:format("~s", [emqx_packet:format(?PUBACK_PACKET(?PUBACK, 98))]),
     io:format("~s", [emqx_packet:format(?PUBREL_PACKET(99))]),
-    io:format("~s", [emqx_packet:format(?SUBSCRIBE_PACKET(15, [{<<"topic">>, ?QOS0}, {<<"topic1">>, ?QOS1}]))]),
-    io:format("~s", [emqx_packet:format(?SUBACK_PACKET(40, [?QOS0, ?QOS1]))]),
+    io:format("~s", [emqx_packet:format(?SUBSCRIBE_PACKET(15, [{<<"topic">>, ?QOS_0}, {<<"topic1">>, ?QOS_1}]))]),
+    io:format("~s", [emqx_packet:format(?SUBACK_PACKET(40, [?QOS_0, ?QOS_1]))]),
     io:format("~s", [emqx_packet:format(?UNSUBSCRIBE_PACKET(89, [<<"t">>, <<"t2">>]))]),
     io:format("~s", [emqx_packet:format(?UNSUBACK_PACKET(90))]).
 
@@ -122,7 +122,7 @@ packet_will_msg(_) ->
                                 client_id = <<"clientid">>,
                                 username = "test",
                                 will_retain = true,
-                                will_qos = ?QOS2,
+                                will_qos = ?QOS_2,
                                 will_topic = <<"topic">>,
                                 will_props = #{},
                                 will_payload = <<"payload">>},

test/emqx_protocol_SUITE.erl.bk

@@ -1,147 +0,0 @@
-%%--------------------------------------------------------------------
-%% Copyright (c) 2013-2018 EMQ Enterprise, Inc. (http://emqtt.io)
-%%
-%% Licensed under the Apache License, Version 2.0 (the "License");
-%% you may not use this file except in compliance with the License.
-%% You may obtain a copy of the License at
-%%
-%%     http://www.apache.org/licenses/LICENSE-2.0
-%%
-%% Unless required by applicable law or agreed to in writing, software
-%% distributed under the License is distributed on an "AS IS" BASIS,
-%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-%% See the License for the specific language governing permissions and
-%% limitations under the License.
-%%--------------------------------------------------------------------
-
--module(emqx_protocol_SUITE).
-
--compile(export_all).
--compile(nowarn_export_all).
-
--include("emqx.hrl").
-
--include("emqx_mqtt.hrl").
-
--include_lib("eunit/include/eunit.hrl").
-
--import(emqx_serializer, [serialize/1]).
-
-all() ->
-    [{group, parser},
-     {group, serializer},
-     {group, packet},
-     {group, message}].
-
-groups() ->
-    [{parser, [],
-      [parse_connect,
-       parse_bridge,
-       parse_publish,
-       parse_puback,
-       parse_pubrec,
-       parse_pubrel,
-       parse_pubcomp,
-       parse_subscribe,
-       parse_unsubscribe,
-       parse_pingreq,
-       parse_disconnect]},
-     {serializer, [],
-      [serialize_connect,
-       serialize_connack,
-       serialize_publish,
-       serialize_puback,
-       serialize_pubrel,
-       serialize_subscribe,
-       serialize_suback,
-       serialize_unsubscribe,
-       serialize_unsuback,
-       serialize_pingreq,
-       serialize_pingresp,
-       serialize_disconnect]},
-     {packet, [],
-      [packet_proto_name,
-       packet_type_name,
-       packet_connack_name,
-       packet_format]},
-     {message, [],
-      [message_make,
-       message_from_packet,
-       message_flag]}].
-
-
-
-%%--------------------------------------------------------------------
-%% Packet Cases
-%%--------------------------------------------------------------------
-
-packet_proto_name(_) ->
-    ?assertEqual(<<"MQIsdp">>, emqx_packet:protocol_name(3)),
-    ?assertEqual(<<"MQTT">>, emqx_packet:protocol_name(4)).
-
-packet_type_name(_) ->
-    ?assertEqual('CONNECT',     emqx_packet:type_name(?CONNECT)),
-    ?assertEqual('UNSUBSCRIBE', emqx_packet:type_name(?UNSUBSCRIBE)).
-
-packet_connack_name(_) ->
-    ?assertEqual('CONNACK_ACCEPT',      emqx_packet:connack_name(?CONNACK_ACCEPT)),
-    ?assertEqual('CONNACK_PROTO_VER',   emqx_packet:connack_name(?CONNACK_PROTO_VER)),
-    ?assertEqual('CONNACK_INVALID_ID',  emqx_packet:connack_name(?CONNACK_INVALID_ID)),
-    ?assertEqual('CONNACK_SERVER',      emqx_packet:connack_name(?CONNACK_SERVER)),
-    ?assertEqual('CONNACK_CREDENTIALS', emqx_packet:connack_name(?CONNACK_CREDENTIALS)),
-    ?assertEqual('CONNACK_AUTH',        emqx_packet:connack_name(?CONNACK_AUTH)).
-
-packet_format(_) ->
-    io:format("~s", [emqx_packet:format(?CONNECT_PACKET(#mqtt_packet_connect{}))]),
-    io:format("~s", [emqx_packet:format(?CONNACK_PACKET(?CONNACK_SERVER))]),
-    io:format("~s", [emqx_packet:format(?PUBLISH_PACKET(?QOS_1, 1))]),
-    io:format("~s", [emqx_packet:format(?PUBLISH_PACKET(?QOS_2, <<"topic">>, 10, <<"payload">>))]),
-    io:format("~s", [emqx_packet:format(?PUBACK_PACKET(?PUBACK, 98))]),
-    io:format("~s", [emqx_packet:format(?PUBREL_PACKET(99))]),
-    io:format("~s", [emqx_packet:format(?SUBSCRIBE_PACKET(15, [{<<"topic">>, ?QOS0}, {<<"topic1">>, ?QOS1}]))]),
-    io:format("~s", [emqx_packet:format(?SUBACK_PACKET(40, [?QOS0, ?QOS1]))]),
-    io:format("~s", [emqx_packet:format(?UNSUBSCRIBE_PACKET(89, [<<"t">>, <<"t2">>]))]),
-    io:format("~s", [emqx_packet:format(?UNSUBACK_PACKET(90))]).
-
-%%--------------------------------------------------------------------
-%% Message Cases
-%%--------------------------------------------------------------------
-
-message_make(_) ->
-    Msg = emqx_message:make(<<"clientid">>, <<"topic">>, <<"payload">>),
-    ?assertEqual(0, Msg#mqtt_message.qos),
-    Msg1 = emqx_message:make(<<"clientid">>, qos2, <<"topic">>, <<"payload">>),
-    ?assert(is_binary(Msg1#mqtt_message.id)),
-    ?assertEqual(2, Msg1#mqtt_message.qos).
-
-message_from_packet(_) ->
-    Msg = emqx_message:from_packet(?PUBLISH_PACKET(1, <<"topic">>, 10, <<"payload">>)),
-    ?assertEqual(1, Msg#mqtt_message.qos),
-    ?assertEqual(10, Msg#mqtt_message.pktid),
-    ?assertEqual(<<"topic">>, Msg#mqtt_message.topic),
-    WillMsg = emqx_message:from_packet(#mqtt_packet_connect{will_flag  = true,
-                                                              will_topic = <<"WillTopic">>,
-                                                              will_msg   = <<"WillMsg">>}),
-    ?assertEqual(<<"WillTopic">>, WillMsg#mqtt_message.topic),
-    ?assertEqual(<<"WillMsg">>, WillMsg#mqtt_message.payload),
-
-    Msg2 = emqx_message:from_packet(<<"username">>, <<"clientid">>,
-                                      ?PUBLISH_PACKET(1, <<"topic">>, 20, <<"payload">>)),
-    ?assertEqual({<<"clientid">>, <<"username">>}, Msg2#mqtt_message.from),
-    io:format("~s", [emqx_message:format(Msg2)]).
-
-message_flag(_) ->
-    Pkt = ?PUBLISH_PACKET(1, <<"t">>, 2, <<"payload">>),
-    Msg2 = emqx_message:from_packet(<<"clientid">>, Pkt),
-    Msg3 = emqx_message:set_flag(retain, Msg2),
-    Msg4 = emqx_message:set_flag(dup, Msg3),
-    ?assert(Msg4#mqtt_message.dup),
-    ?assert(Msg4#mqtt_message.retain),
-    Msg5 = emqx_message:set_flag(Msg4),
-    Msg6 = emqx_message:unset_flag(dup, Msg5),
-    Msg7 = emqx_message:unset_flag(retain, Msg6),
-    ?assertNot(Msg7#mqtt_message.dup),
-    ?assertNot(Msg7#mqtt_message.retain),
-    emqx_message:unset_flag(Msg7),
-    emqx_message:to_packet(Msg7).
-