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-rw-r--r--lib/stdlib/test/dets_SUITE.erl24
-rw-r--r--lib/stdlib/test/ets_SUITE.erl35
-rw-r--r--lib/stdlib/test/supervisor_SUITE.erl52
-rw-r--r--lib/stdlib/test/supervisor_deadlock.erl14
4 files changed, 115 insertions, 10 deletions
diff --git a/lib/stdlib/test/dets_SUITE.erl b/lib/stdlib/test/dets_SUITE.erl
index 7f5e06524a..35e587afcc 100644
--- a/lib/stdlib/test/dets_SUITE.erl
+++ b/lib/stdlib/test/dets_SUITE.erl
@@ -1876,9 +1876,33 @@ fixtable(Config, Version) when is_list(Config) ->
{ok, _} = dets:open_file(T, [{type, duplicate_bag} | Args]),
%% In a fixed table, delete and re-insert an object.
ok = dets:insert(T, {1, a, b}),
+ SysBefore = erlang:timestamp(),
+ MonBefore = erlang:monotonic_time(),
dets:safe_fixtable(T, true),
+ MonAfter = erlang:monotonic_time(),
+ SysAfter = erlang:timestamp(),
+ Self = self(),
+ {FixMonTime,[{Self,1}]} = dets:info(T,safe_fixed_monotonic_time),
+ {FixSysTime,[{Self,1}]} = dets:info(T,safe_fixed),
+ true = is_integer(FixMonTime),
+ true = MonBefore =< FixMonTime,
+ true = FixMonTime =< MonAfter,
+ {FstMs,FstS,FstUs} = FixSysTime,
+ true = is_integer(FstMs),
+ true = is_integer(FstS),
+ true = is_integer(FstUs),
+ case erlang:system_info(time_warp_mode) of
+ no_time_warp ->
+ true = timer:now_diff(FixSysTime, SysBefore) >= 0,
+ true = timer:now_diff(SysAfter, FixSysTime) >= 0;
+ _ ->
+ %% ets:info(Tab,safe_fixed) not timewarp safe...
+ ignore
+ end,
ok = dets:match_delete(T, {1, a, b}),
ok = dets:insert(T, {1, a, b}),
+ {FixMonTime,[{Self,1}]} = dets:info(T,safe_fixed_monotonic_time),
+ {FixSysTime,[{Self,1}]} = dets:info(T,safe_fixed),
dets:safe_fixtable(T, false),
1 = length(dets:match_object(T, '_')),
diff --git a/lib/stdlib/test/ets_SUITE.erl b/lib/stdlib/test/ets_SUITE.erl
index ae431d66d9..30a158d9e1 100644
--- a/lib/stdlib/test/ets_SUITE.erl
+++ b/lib/stdlib/test/ets_SUITE.erl
@@ -3989,15 +3989,37 @@ safe_fixtable_do(Opts) ->
?line true = ets:safe_fixtable(Tab, true),
?line receive after 1 -> ok end,
?line true = ets:safe_fixtable(Tab, false),
- ?line false = ets:info(Tab,safe_fixed),
- ?line true = ets:safe_fixtable(Tab, true),
+ false = ets:info(Tab,safe_fixed_monotonic_time),
+ false = ets:info(Tab,safe_fixed),
+ SysBefore = erlang:timestamp(),
+ MonBefore = erlang:monotonic_time(),
+ true = ets:safe_fixtable(Tab, true),
+ MonAfter = erlang:monotonic_time(),
+ SysAfter = erlang:timestamp(),
Self = self(),
- ?line {{_,_,_},[{Self,1}]} = ets:info(Tab,safe_fixed),
+ {FixMonTime,[{Self,1}]} = ets:info(Tab,safe_fixed_monotonic_time),
+ {FixSysTime,[{Self,1}]} = ets:info(Tab,safe_fixed),
+ true = is_integer(FixMonTime),
+ true = MonBefore =< FixMonTime,
+ true = FixMonTime =< MonAfter,
+ {FstMs,FstS,FstUs} = FixSysTime,
+ true = is_integer(FstMs),
+ true = is_integer(FstS),
+ true = is_integer(FstUs),
+ case erlang:system_info(time_warp_mode) of
+ no_time_warp ->
+ true = timer:now_diff(FixSysTime, SysBefore) >= 0,
+ true = timer:now_diff(SysAfter, FixSysTime) >= 0;
+ _ ->
+ %% ets:info(Tab,safe_fixed) not timewarp safe...
+ ignore
+ end,
%% Test that an unjustified 'unfix' is a no-op.
{Pid,MRef} = my_spawn_monitor(fun() -> true = ets:safe_fixtable(Tab,false) end),
{'DOWN', MRef, process, Pid, normal} = receive M -> M end,
- ?line true = ets:info(Tab,fixed),
- ?line {{_,_,_},[{Self,1}]} = ets:info(Tab,safe_fixed),
+ true = ets:info(Tab,fixed),
+ {FixMonTime,[{Self,1}]} = ets:info(Tab,safe_fixed_monotonic_time),
+ {FixSysTime,[{Self,1}]} = ets:info(Tab,safe_fixed),
%% badarg's
?line {'EXIT', {badarg, _}} = (catch ets:safe_fixtable(Tab, foobar)),
?line true = ets:info(Tab,fixed),
@@ -4043,6 +4065,7 @@ info_do(Opts) ->
?line undefined = ets:info(non_existing_table_xxyy,type),
?line undefined = ets:info(non_existing_table_xxyy,node),
?line undefined = ets:info(non_existing_table_xxyy,named_table),
+ ?line undefined = ets:info(non_existing_table_xxyy,safe_fixed_monotonic_time),
?line undefined = ets:info(non_existing_table_xxyy,safe_fixed),
?line verify_etsmem(EtsMem).
@@ -5532,7 +5555,7 @@ otp_8166_zombie_creator(T,Deleted) ->
[{'=<','$1', Deleted}],
[true]}]),
Pid ! zombies_created,
- repeat_while(fun() -> case ets:info(T,safe_fixed) of
+ repeat_while(fun() -> case ets:info(T,safe_fixed_monotonic_time) of
{_,[_P1,_P2]} ->
false;
_ ->
diff --git a/lib/stdlib/test/supervisor_SUITE.erl b/lib/stdlib/test/supervisor_SUITE.erl
index 8cb2a5194a..903ca76575 100644
--- a/lib/stdlib/test/supervisor_SUITE.erl
+++ b/lib/stdlib/test/supervisor_SUITE.erl
@@ -67,6 +67,7 @@
%% Misc tests
-export([child_unlink/1, tree/1, count_children/1,
+ count_restarting_children/1,
do_not_save_start_parameters_for_temporary_children/1,
do_not_save_child_specs_for_temporary_children/1,
simple_one_for_one_scale_many_temporary_children/1,
@@ -90,7 +91,8 @@ all() ->
{group, normal_termination},
{group, shutdown_termination},
{group, abnormal_termination}, child_unlink, tree,
- count_children, do_not_save_start_parameters_for_temporary_children,
+ count_children, count_restarting_children,
+ do_not_save_start_parameters_for_temporary_children,
do_not_save_child_specs_for_temporary_children,
simple_one_for_one_scale_many_temporary_children, temporary_bystander,
simple_global_supervisor, hanging_restart_loop, hanging_restart_loop_simple,
@@ -1459,6 +1461,54 @@ count_children(Config) when is_list(Config) ->
[1,0,0,0] = get_child_counts(sup_test).
%%-------------------------------------------------------------------------
+%% Test count_children when some children are restarting
+count_restarting_children(Config) when is_list(Config) ->
+ process_flag(trap_exit, true),
+ Child = {child, {supervisor_deadlock, start_child_noreg, []},
+ permanent, brutal_kill, worker, []},
+ %% 2 sek delay on failing restart (see supervisor_deadlock.erl) ->
+ %% MaxR=20, MaxT=10 should ensure a restart loop when starting and
+ %% restarting 3 instances of the child (as below)
+ {ok, SupPid} = start_link({ok, {{simple_one_for_one, 20, 10}, [Child]}}),
+
+ %% Ets table with state read by supervisor_deadlock.erl
+ ets:new(supervisor_deadlock,[set,named_table,public]),
+ ets:insert(supervisor_deadlock,{fail_start,false}),
+
+ [1,0,0,0] = get_child_counts(SupPid),
+ {ok, Ch1_1} = supervisor:start_child(SupPid, []),
+ [1,1,0,1] = get_child_counts(SupPid),
+ {ok, Ch1_2} = supervisor:start_child(SupPid, []),
+ [1,2,0,2] = get_child_counts(SupPid),
+ {ok, Ch1_3} = supervisor:start_child(SupPid, []),
+ [1,3,0,3] = get_child_counts(SupPid),
+
+ supervisor_deadlock:restart_child(Ch1_1),
+ supervisor_deadlock:restart_child(Ch1_2),
+ supervisor_deadlock:restart_child(Ch1_3),
+ test_server:sleep(400),
+ [1,3,0,3] = get_child_counts(SupPid),
+ [Ch2_1, Ch2_2, Ch2_3] = [C || {_,C,_,_} <- supervisor:which_children(SupPid)],
+
+ ets:insert(supervisor_deadlock,{fail_start,true}),
+ supervisor_deadlock:restart_child(Ch2_1),
+ supervisor_deadlock:restart_child(Ch2_2),
+ test_server:sleep(4000), % allow restart to happen before proceeding
+ [1,1,0,3] = get_child_counts(SupPid),
+
+ ets:insert(supervisor_deadlock,{fail_start,false}),
+ test_server:sleep(4000), % allow restart to happen before proceeding
+ [1,3,0,3] = get_child_counts(SupPid),
+
+ ok = supervisor:terminate_child(SupPid, Ch2_3),
+ [1,2,0,2] = get_child_counts(SupPid),
+ [Ch3_1, Ch3_2] = [C || {_,C,_,_} <- supervisor:which_children(SupPid)],
+ ok = supervisor:terminate_child(SupPid, Ch3_1),
+ [1,1,0,1] = get_child_counts(SupPid),
+ ok = supervisor:terminate_child(SupPid, Ch3_2),
+ [1,0,0,0] = get_child_counts(SupPid).
+
+%%-------------------------------------------------------------------------
%% Temporary children shall not be restarted so they should not save
%% start parameters, as it potentially can take up a huge amount of
%% memory for no purpose.
diff --git a/lib/stdlib/test/supervisor_deadlock.erl b/lib/stdlib/test/supervisor_deadlock.erl
index 288547a972..8d3d1c6f30 100644
--- a/lib/stdlib/test/supervisor_deadlock.erl
+++ b/lib/stdlib/test/supervisor_deadlock.erl
@@ -11,9 +11,11 @@ init([child]) ->
%% terminates immediately
{ok, []};
[{fail_start, true}] ->
- %% Restart frequency is MaxR=8, MaxT=10, so this will
- %% ensure that restart intensity is not reached -> restart
- %% loop
+ %% A restart frequency of MaxR=8, MaxT=10 should ensure
+ %% that restart intensity is not reached -> restart loop.
+ %% (Note that if we use simple_one_for_one, and start
+ %% 'many' child instances, the restart frequency must be
+ %% ajusted accordingly.)
timer:sleep(2000), % NOTE: this could be a gen_server call timeout
{stop, error}
@@ -41,5 +43,11 @@ code_change(_OldVsn, State, _Extra) ->
start_child() ->
gen_server:start_link({local, ?MODULE}, ?MODULE, [child], []).
+start_child_noreg() ->
+ gen_server:start_link(?MODULE, [child], []).
+
restart_child() ->
gen_server:cast(supervisor_deadlock, restart).
+
+restart_child(Pid) ->
+ gen_server:cast(Pid, restart).
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-19 01:17:30 +0000