diff options
Diffstat (limited to 'lib/diameter/src/base/diameter_lib.erl')
| -rw-r--r-- | lib/diameter/src/base/diameter_lib.erl | 113 |
1 files changed, 90 insertions, 23 deletions
diff --git a/lib/diameter/src/base/diameter_lib.erl b/lib/diameter/src/base/diameter_lib.erl index 26cc6137a2..43b0ca24ab 100644 --- a/lib/diameter/src/base/diameter_lib.erl +++ b/lib/diameter/src/base/diameter_lib.erl @@ -3,27 +3,35 @@ %% %% Copyright Ericsson AB 2010-2015. All Rights Reserved. %% -%% The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. +%% 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 %% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. +%% 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. %% %% %CopyrightEnd% %% -module(diameter_lib). +-compile({no_auto_import, [now/0]}). +-compile({nowarn_deprecated_function, [{erlang, now, 0}]}). -export([info_report/2, error_report/2, warning_report/2, + now/0, + timestamp/1, now_diff/1, + micro_diff/1, + micro_diff/2, time/1, + seed/0, eval/1, eval_name/1, get_stacktrace/0, @@ -92,21 +100,68 @@ fmt(T) -> end. %% --------------------------------------------------------------------------- +%% # now/0 +%% --------------------------------------------------------------------------- + +-spec now() + -> integer(). + +now() -> + erlang:monotonic_time(). + +%% --------------------------------------------------------------------------- +%% # timestamp/1 +%% --------------------------------------------------------------------------- + +-spec timestamp(integer()) + -> erlang:timestamp(). + +timestamp(MonoT) -> %% monotonic time + MicroSecs = monotonic_to_microseconds(MonoT + erlang:time_offset()), + Secs = MicroSecs div 1000000, + {Secs div 1000000, Secs rem 1000000, MicroSecs rem 1000000}. + +monotonic_to_microseconds(MonoT) -> + erlang:convert_time_unit(MonoT, native, micro_seconds). + +%% --------------------------------------------------------------------------- %% # now_diff/1 %% --------------------------------------------------------------------------- --spec now_diff(NowT :: erlang:timestamp()) +-spec now_diff(T0 :: integer()) -> {Hours, Mins, Secs, MicroSecs} when Hours :: non_neg_integer(), Mins :: 0..59, Secs :: 0..59, MicroSecs :: 0..999999. -%% Return timer:now_diff(now(), NowT) as an {H, M, S, MicroS} tuple -%% instead of as integer microseconds. +%% Return time difference as an {H, M, S, MicroS} tuple instead of as +%% integer microseconds. + +now_diff(T0) -> + time(micro_diff(T0)). + +%% --------------------------------------------------------------------------- +%% # micro_diff/1 +%% --------------------------------------------------------------------------- + +-spec micro_diff(T0 :: integer()) + -> MicroSecs + when MicroSecs :: non_neg_integer(). + +micro_diff(T0) -> %% monotonic time + monotonic_to_microseconds(erlang:monotonic_time() - T0). + +%% --------------------------------------------------------------------------- +%% # micro_diff/2 +%% --------------------------------------------------------------------------- + +-spec micro_diff(T1 :: integer(), T0 :: integer()) + -> MicroSecs + when MicroSecs :: non_neg_integer(). -now_diff(Time) -> - time(timer:now_diff(now(), Time)). +micro_diff(T1, T0) -> %% monotonic time + monotonic_to_microseconds(T1 - T0). %% --------------------------------------------------------------------------- %% # time/1 @@ -114,19 +169,13 @@ now_diff(Time) -> %% Return an elapsed time as an {H, M, S, MicroS} tuple. %% --------------------------------------------------------------------------- --spec time(NowT | Diff) +-spec time(Diff :: non_neg_integer()) -> {Hours, Mins, Secs, MicroSecs} - when NowT :: erlang:timestamp(), - Diff :: non_neg_integer(), - Hours :: non_neg_integer(), + when Hours :: non_neg_integer(), Mins :: 0..59, Secs :: 0..59, MicroSecs :: 0..999999. -time({_,_,_} = NowT) -> %% time of day - %% 24 hours = 24*60*60*1000000 = 86400000000 microsec - time(timer:now_diff(NowT, {0,0,0}) rem 86400000000); - time(Micro) -> %% elapsed time Seconds = Micro div 1000000, H = Seconds div 3600, @@ -135,6 +184,24 @@ time(Micro) -> %% elapsed time {H, M, S, Micro rem 1000000}. %% --------------------------------------------------------------------------- +%% # seed/0 +%% --------------------------------------------------------------------------- + +-spec seed() + -> {erlang:timestamp(), {integer(), integer(), integer()}}. + +%% Return an argument for random:seed/1. + +seed() -> + T = now(), + {timestamp(T), seed(T)}. + +%% seed/1 + +seed(T) -> %% monotonic time + {erlang:phash2(node()), T, erlang:unique_integer()}. + +%% --------------------------------------------------------------------------- %% # eval/1 %% %% Evaluate a function in various forms. @@ -226,7 +293,7 @@ ip(T) %% Or not: convert from '.'/':'-separated decimal/hex. ip(Addr) -> - {ok, A} = inet:parse_address(Addr), + {ok, A} = inet_parse:address(Addr), %% documented in inet(3) A. %% --------------------------------------------------------------------------- |