rm oldtopic
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parent
7d5f497979
commit
537e18b376
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@ -1,28 +0,0 @@
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-module(emqtt_oldtopic).
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-export([triples/1, test/0]).
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triples(B) when is_binary(B) ->
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triples(binary_to_list(B), []).
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triples(S, Acc) ->
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triples(string:rchr(S, $/), S, Acc).
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triples(0, S, Acc) ->
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[{root, l2b(S), l2b(S)}|Acc];
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triples(I, S, Acc) ->
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S1 = string:substr(S, 1, I-1),
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S2 = string:substr(S, I+1),
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triples(S1, [{l2b(S1), l2b(S2), l2b(S)}|Acc]).
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l2b(L) -> list_to_binary(L).
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test() ->
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N = 100000,
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Topic = <<"/abkc/19383/192939/akakdkkdkak/xxxyyuya/akakak">>,
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{Time, _} = timer:tc(fun() ->
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[triples(Topic) || _I <- lists:seq(1, N)]
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end),
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io:format("Time for triples: ~p(micro)", [Time/N]),
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ok.
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