rm oldtopic

This commit is contained in:
Ery Lee 2015-01-19 21:51:36 +08:00
parent 7d5f497979
commit 537e18b376
1 changed files with 0 additions and 28 deletions

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