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emqx
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perf(mqtt-caps): save some map builds

This commit is contained in:
William Yang 2023-06-02 16:19:58 +02:00
parent 5f24526ab2
commit 4961aca3d0
1 changed files with 6 additions and 17 deletions
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23
apps/emqx/src/emqx_mqtt_caps.erl
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@ -108,23 +108,12 @@ do_check_pub(_Flags, _Caps) ->
ok_or_error(emqx_types:reason_code()).
check_sub(ClientInfo = #{zone := Zone}, Topic, SubOpts) ->
Caps = get_caps(?SUBCAP_KEYS, Zone),
Flags = lists:foldl(
fun
(max_topic_levels, Map) ->
Map#{topic_levels => emqx_topic:levels(Topic)};
(wildcard_subscription, Map) ->
Map#{is_wildcard => emqx_topic:wildcard(Topic)};
(shared_subscription, Map) ->
Map#{is_shared => maps:is_key(share, SubOpts)};
(exclusive_subscription, Map) ->
Map#{is_exclusive => maps:get(is_exclusive, SubOpts, false)};
%% Ignore
(_Key, Map) ->
Map
end,
#{},
maps:keys(Caps)
),
Flags = #{
topic_levels => emqx_topic:levels(Topic),
is_wildcard => emqx_topic:wildcard(Topic),
is_shared => maps:is_key(share, SubOpts),
is_exclusive => maps:get(is_exclusive, SubOpts, false)
},
do_check_sub(Flags, Caps, ClientInfo, Topic).
do_check_sub(#{topic_levels := Levels}, #{max_topic_levels := Limit}, _, _) when