37 lines
1.3 KiB
Erlang
37 lines
1.3 KiB
Erlang
%%--------------------------------------------------------------------
|
|
%% 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).
|
|
|