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authorBjörn Gustavsson <[email protected]>2015-12-04 12:15:40 +0100
committerBjörn Gustavsson <[email protected]>2015-12-11 14:37:46 +0100
commit80757f9491c72ee262a5910e0b3b02e95b1e5f2a (patch)
tree1019a6da73ac28571a0b51727ed6fa33daf11522 /lib/kernel/src
parentdee396ffd32dcd68c47cab983c75ba32f921b9db (diff)
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Use 'rand' instead of the obsolete 'random' module
In most cases, we don't have to seed the random number generator, as the rand:uniform/1 takes care about that itself.
Diffstat (limited to 'lib/kernel/src')
-rw-r--r--lib/kernel/src/global.erl20
1 files changed, 7 insertions, 13 deletions
diff --git a/lib/kernel/src/global.erl b/lib/kernel/src/global.erl
index dcabeb5e49..0c73ead7c5 100644
--- a/lib/kernel/src/global.erl
+++ b/lib/kernel/src/global.erl
@@ -2068,23 +2068,17 @@ get_known() ->
gen_server:call(global_name_server, get_known, infinity).
random_sleep(Times) ->
- case (Times rem 10) of
- 0 -> erase(random_seed);
- _ -> ok
- end,
- case get(random_seed) of
- undefined ->
- _ = random:seed(erlang:phash2([erlang:node()]),
- erlang:monotonic_time(),
- erlang:unique_integer()),
- ok;
- _ -> ok
- end,
+ _ = case Times rem 10 of
+ 0 ->
+ _ = rand:seed(exsplus);
+ _ ->
+ ok
+ end,
%% First time 1/4 seconds, then doubling each time up to 8 seconds max.
Tmax = if Times > 5 -> 8000;
true -> ((1 bsl Times) * 1000) div 8
end,
- T = random:uniform(Tmax),
+ T = rand:uniform(Tmax),
?trace({random_sleep, {me,self()}, {times,Times}, {t,T}, {tmax,Tmax}}),
receive after T -> ok end.