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-rw-r--r--erts/preloaded/src/erlang.erl31
1 files changed, 27 insertions, 4 deletions
diff --git a/erts/preloaded/src/erlang.erl b/erts/preloaded/src/erlang.erl
index edf79b8f75..652a954807 100644
--- a/erts/preloaded/src/erlang.erl
+++ b/erts/preloaded/src/erlang.erl
@@ -59,6 +59,7 @@
-export_type([timestamp/0]).
-export_type([time_unit/0]).
+-export_type([deprecated_time_unit/0]).
-type ext_binary() :: binary().
-type timestamp() :: {MegaSecs :: non_neg_integer(),
@@ -67,12 +68,20 @@
-type time_unit() ::
pos_integer()
- | 'seconds'
+ | 'second'
+ | 'millisecond'
+ | 'microsecond'
+ | 'nanosecond'
+ | 'native'
+ | 'perf_counter'
+ | deprecated_time_unit().
+
+%% Deprecated symbolic units...
+-type deprecated_time_unit() ::
+ 'seconds'
| 'milli_seconds'
| 'micro_seconds'
- | 'nano_seconds'
- | 'native'
- | 'perf_counter'.
+ | 'nano_seconds'.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Native code BIF stubs and their types
@@ -1365,19 +1374,33 @@ convert_time_unit(Time, FromUnit, ToUnit) ->
FU = case FromUnit of
native -> erts_internal:time_unit();
perf_counter -> erts_internal:perf_counter_unit();
+ nanosecond -> 1000*1000*1000;
+ microsecond -> 1000*1000;
+ millisecond -> 1000;
+ second -> 1;
+
+ %% Deprecated symbolic units...
nano_seconds -> 1000*1000*1000;
micro_seconds -> 1000*1000;
milli_seconds -> 1000;
seconds -> 1;
+
_ when FromUnit > 0 -> FromUnit
end,
TU = case ToUnit of
native -> erts_internal:time_unit();
perf_counter -> erts_internal:perf_counter_unit();
+ nanosecond -> 1000*1000*1000;
+ microsecond -> 1000*1000;
+ millisecond -> 1000;
+ second -> 1;
+
+ %% Deprecated symbolic units...
nano_seconds -> 1000*1000*1000;
micro_seconds -> 1000*1000;
milli_seconds -> 1000;
seconds -> 1;
+
_ when ToUnit > 0 -> ToUnit
end,
case Time < 0 of