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authorAnders Svensson <[email protected]>2016-06-12 09:09:59 +0200
committerAnders Svensson <[email protected]>2016-06-12 09:09:59 +0200
commitc2861de76ca39217a0cf4fc284f8eeaf3f7d2477 (patch)
treeb55bae61e0d47b5ec76daf9207dadd5d3fe374b9 /lib/diameter/src/base
parentbddd9a9dd2f784eb570795b0f8ecd25d7ed93378 (diff)
parentc980e489d02417e1144d28958fe9abd4017f72a4 (diff)
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Merge branch 'anders/diameter/rand/OTP-13664'
* anders/diameter/rand/OTP-13664: Use rand(3) instead of random(3)
Diffstat (limited to 'lib/diameter/src/base')
-rw-r--r--lib/diameter/src/base/diameter_lib.erl33
-rw-r--r--lib/diameter/src/base/diameter_session.erl5
-rw-r--r--lib/diameter/src/base/diameter_watchdog.erl4
3 files changed, 15 insertions, 27 deletions
diff --git a/lib/diameter/src/base/diameter_lib.erl b/lib/diameter/src/base/diameter_lib.erl
index 43b0ca24ab..b835e87967 100644
--- a/lib/diameter/src/base/diameter_lib.erl
+++ b/lib/diameter/src/base/diameter_lib.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2010-2015. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
@@ -20,18 +20,17 @@
-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/0,
timestamp/1,
now_diff/1,
micro_diff/1,
micro_diff/2,
time/1,
- seed/0,
eval/1,
eval_name/1,
get_stacktrace/0,
@@ -110,6 +109,16 @@ now() ->
erlang:monotonic_time().
%% ---------------------------------------------------------------------------
+%% # timestamp/0
+%% ---------------------------------------------------------------------------
+
+-spec timestamp()
+ -> erlang:timestamp().
+
+timestamp() ->
+ timestamp(now()).
+
+%% ---------------------------------------------------------------------------
%% # timestamp/1
%% ---------------------------------------------------------------------------
@@ -184,24 +193,6 @@ 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.
diff --git a/lib/diameter/src/base/diameter_session.erl b/lib/diameter/src/base/diameter_session.erl
index 53973649fd..d854bc36a5 100644
--- a/lib/diameter/src/base/diameter_session.erl
+++ b/lib/diameter/src/base/diameter_session.erl
@@ -158,10 +158,9 @@ session_id(Host) ->
%% ---------------------------------------------------------------------------
init() ->
- {Now, Seed} = diameter_lib:seed(),
- random:seed(Seed),
+ Now = diameter_lib:timestamp(),
Time = time32(Now),
- Seq = (?INT32 band (Time bsl 20)) bor (random:uniform(1 bsl 20) - 1),
+ Seq = (?INT32 band (Time bsl 20)) bor (rand:uniform(1 bsl 20) - 1),
ets:insert(diameter_sequence, [{origin_state_id, Time},
{session_base, Time bsl 32},
{sequence, Seq}]),
diff --git a/lib/diameter/src/base/diameter_watchdog.erl b/lib/diameter/src/base/diameter_watchdog.erl
index 3fd87b223e..2ba60a65fb 100644
--- a/lib/diameter/src/base/diameter_watchdog.erl
+++ b/lib/diameter/src/base/diameter_watchdog.erl
@@ -125,8 +125,6 @@ i({Ack, T, Pid, {RecvData,
= Svc}}) ->
monitor(process, Pid),
wait(Ack, Pid),
- {_, Seed} = diameter_lib:seed(),
- random:seed(Seed),
putr(restart, {T, Opts, Svc, SvcOpts}), %% save seeing it in trace
putr(dwr, dwr(Caps)), %%
{_,_} = Mask = proplists:get_value(sequence, SvcOpts),
@@ -565,7 +563,7 @@ tw(TwInit, Ms) ->
tw(T)
when is_integer(T), T >= 6000 ->
- T - 2000 + (random:uniform(4001) - 1); %% RFC3539 jitter of +/- 2 sec.
+ T - 2000 + (rand:uniform(4001) - 1); %% RFC3539 jitter of +/- 2 sec.
tw({M,F,A}) ->
apply(M,F,A).