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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2019-2021. 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.
%% You may obtain a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% %CopyrightEnd%
%%
-module(literal_area_collector_test).
-export([check_idle/0, check_idle/1]).
check_idle() ->
check_idle(5000).
check_idle(Timeout) when is_integer(Timeout) > 0 ->
ScaledTimeout = Timeout*test_server:timetrap_scale_factor(),
Pid = find_literal_area_collector(),
Start = erlang:monotonic_time(millisecond),
Alias = alias(),
wait_for_idle_literal_collector(Pid, Alias, Start, ScaledTimeout).
wait_for_idle_literal_collector(Pid, Alias, Start, Timeout) ->
Ref = make_ref(),
Pid ! {get_status, Ref, Alias},
Now = erlang:monotonic_time(millisecond),
TMO = case Start + Timeout - Now of
TimeLeft when TimeLeft < 0 -> 0;
TimeLeft -> TimeLeft
end,
receive
{Ref, idle} ->
unalias(Alias),
ok;
{Ref, _} ->
receive after 10 -> ok end,
wait_for_idle_literal_collector(Pid, Alias, Start, Timeout)
after TMO ->
unalias(Alias),
receive {Ref, _} -> ok after 0 -> ok end,
error({busy_literal_area_collecor_timout, Timeout})
end.
find_literal_area_collector() ->
case get('__literal_area_collector__') of
Pid when is_pid(Pid) ->
Pid;
_ ->
find_save_literal_area_collector(processes()),
find_literal_area_collector()
end.
find_save_literal_area_collector([P|Ps]) ->
case process_info(P, initial_call) of
{initial_call,{erts_literal_area_collector,start,0}} ->
put('__literal_area_collector__', P);
_ ->
find_save_literal_area_collector(Ps)
end.
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