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Add case for ets:match_object

This commit is contained in:
周子博 2018-10-26 19:43:05 +08:00
parent abb2e5c918
commit 881e1a9621
1 changed files with 12 additions and 4 deletions
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16
src/emqx_broker.erl
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@ -260,11 +260,19 @@ subscription(Topic, Subscriber) ->
-spec(subscribed(emqx_topic:topic(), pid() | emqx_types:subid() | emqx_types:subscriber()) -> boolean()).
subscribed(Topic, SubPid) when is_binary(Topic), is_pid(SubPid) ->
{Match, _} = ets:match_object(?SUBOPTION, {{Topic, {SubPid, '_'}}, '_'}, 1),
length(Match) >= 1;
case ets:match_object(?SUBOPTION, {{Topic, {SubPid, '_'}}, '_'}, 1) of
{Match, _} ->
length(Match) >= 1;
'$end_of_table' ->
false
end;
subscribed(Topic, SubId) when is_binary(Topic), ?is_subid(SubId) ->
{Match, _} = ets:match_object(?SUBOPTION, {{Topic, {'_', SubId}}, '_'}, 1),
length(Match) >= 1;
case ets:match_object(?SUBOPTION, {{Topic, {'_', SubId}}, '_'}, 1) of
{Match, _} ->
length(Match) >= 1;
'$end_of_table' ->
false
end;
subscribed(Topic, {SubPid, SubId}) when is_binary(Topic), is_pid(SubPid), ?is_subid(SubId) ->
ets:member(?SUBOPTION, {Topic, {SubPid, SubId}}).