yuanbiao
/
emqx
1
0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

add emqttd_time module

This commit is contained in:
Feng 2016-02-11 14:33:42 +08:00
parent 1b79ebf232
commit 3f047a1d16
2 changed files with 65 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
src/emqttd_time.erl Normal file
View File

@ -0,0 +1,36 @@
%%--------------------------------------------------------------------
%% Copyright (c) 2012-2016 Feng Lee <feng@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(emqttd_time).
-export([seed/0, now_to_secs/0, now_to_secs/1, now_to_ms/0, now_to_ms/1]).
seed() ->
case erlang:function_exported(erlang, timestamp, 0) of
true -> random:seed(erlang:timestamp()); %% R18
false -> random:seed(os:timestamp()) %% Compress now() deprecated warning...
end.
now_to_secs() -> now_to_secs(os:timestamp()).
now_to_secs({MegaSecs, Secs, _MicroSecs}) ->
MegaSecs * 1000000 + Secs.
now_to_ms() -> now_to_ms(os:timestamp()).
now_to_ms({MegaSecs, Secs, MicroSecs}) ->
(MegaSecs * 1000000 + Secs) * 1000 + round(MicroSecs/1000).

29
test/emqttd_time_tests.erl Normal file
View File

@ -0,0 +1,29 @@
%%--------------------------------------------------------------------
%% Copyright (c) 2016 Feng Lee <feng@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(emqttd_time_tests).
-ifdef(TEST).
-include_lib("eunit/include/eunit.hrl").
test_() ->
emqttd_time:seed(),
emqttd_time:now_to_secs(),
emqttd_time:now_to_ms().
-endif.