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-rw-r--r--erts/emulator/beam/erl_bif_info.c3
-rw-r--r--erts/emulator/test/port_SUITE.erl2
-rw-r--r--erts/emulator/test/system_info_SUITE.erl15
3 files changed, 17 insertions, 3 deletions
diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c
index 0e0842e139..9a3b78ae8d 100644
--- a/erts/emulator/beam/erl_bif_info.c
+++ b/erts/emulator/beam/erl_bif_info.c
@@ -2863,6 +2863,9 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1)
else if (ERTS_IS_ATOM_STR("atom_limit",BIF_ARG_1)) {
BIF_RET(make_small(erts_get_atom_limit()));
}
+ else if (ERTS_IS_ATOM_STR("atom_count",BIF_ARG_1)) {
+ BIF_RET(make_small(atom_table_size()));
+ }
else if (ERTS_IS_ATOM_STR("tolerant_timeofday",BIF_ARG_1)) {
if (erts_has_time_correction()
&& erts_time_offset_state() == ERTS_TIME_OFFSET_FINAL) {
diff --git a/erts/emulator/test/port_SUITE.erl b/erts/emulator/test/port_SUITE.erl
index d4e77d634a..23594aa8c4 100644
--- a/erts/emulator/test/port_SUITE.erl
+++ b/erts/emulator/test/port_SUITE.erl
@@ -2292,7 +2292,7 @@ maybe_to_list(List) ->
List.
format({Eol,List}) ->
- io_lib:format("tuple<~w,~s>",[Eol, maybe_to_list(List)]);
+ io_lib:format("tuple<~w,~w>",[Eol, maybe_to_list(List)]);
format(List) when is_list(List) ->
case list_at_least(50, List) of
true ->
diff --git a/erts/emulator/test/system_info_SUITE.erl b/erts/emulator/test/system_info_SUITE.erl
index 3d9e74472b..6a772bf7c9 100644
--- a/erts/emulator/test/system_info_SUITE.erl
+++ b/erts/emulator/test/system_info_SUITE.erl
@@ -36,7 +36,8 @@
-export([all/0, suite/0]).
-export([process_count/1, system_version/1, misc_smoke_tests/1,
- heap_size/1, wordsize/1, memory/1, ets_limit/1, atom_limit/1]).
+ heap_size/1, wordsize/1, memory/1, ets_limit/1, atom_limit/1,
+ atom_count/1]).
suite() ->
[{ct_hooks,[ts_install_cth]},
@@ -44,7 +45,7 @@ suite() ->
all() ->
[process_count, system_version, misc_smoke_tests,
- heap_size, wordsize, memory, ets_limit, atom_limit].
+ heap_size, wordsize, memory, ets_limit, atom_limit, atom_count].
%%%
%%% The test cases -------------------------------------------------------------
@@ -550,3 +551,13 @@ get_atom_limit(Config, AtomsMax) ->
end,
stop_node(Node),
Res.
+
+%% Verify that system_info(atom_count) works.
+atom_count(Config) when is_list(Config) ->
+ Limit = erlang:system_info(atom_limit),
+ Count1 = erlang:system_info(atom_count),
+ list_to_atom(integer_to_list(erlang:unique_integer())),
+ Count2 = erlang:system_info(atom_count),
+ true = Limit >= Count2,
+ true = Count2 > Count1,
+ ok.