%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2005-2017. 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(dump_SUITE).
-include_lib("common_test/include/ct.hrl").
-export([all/0, suite/0, init_per_testcase/2, end_per_testcase/2]).
-export([signal_abort/1]).
-export([load/0]).
-include_lib("kernel/include/file.hrl").
suite() ->
[{ct_hooks,[ts_install_cth]},
{timetrap, {minutes, 2}}].
all() ->
[signal_abort].
init_per_testcase(signal_abort, Config) ->
SO = erlang:system_info(schedulers_online),
erts_debug:set_internal_state(available_internal_state, true),
Dump = erts_debug:get_internal_state(scheduler_dump),
erts_debug:set_internal_state(available_internal_state, false),
if SO < 3 ->
{skip, "not enough schedulers"};
not Dump ->
{skip, "the platform does not support scheduler dump"};
Dump ->
Config
end.
end_per_testcase(_, Config) ->
Config.
%%%
%%% The test cases -------------------------------------------------------------
%%%
%% Test that a snapshot is taken of other schedulers using a signal
%% when a crash dump is generated.
signal_abort(Config) ->
Dump = filename:join(proplists:get_value(priv_dir, Config),"signal_abort.dump"),
{ok, Node} = start_node(Config),
_P1 = spawn(Node, ?MODULE, load, []),
_P2 = spawn(Node, ?MODULE, load, []),
_P3 = spawn(Node, ?MODULE, load, []),
_P4 = spawn(Node, ?MODULE, load, []),
_P5 = spawn(Node, ?MODULE, load, []),
_P6 = spawn(Node, ?MODULE, load, []),
timer:sleep(500),
true = rpc:call(Node, os, putenv, ["ERL_CRASH_DUMP",Dump]),
rpc:call(Node, erlang, halt, ["dump"]),
{ok, Bin} = get_dump_when_done(Dump),
ct:log("~s",[Bin]),
{match, Matches} = re:run(Bin,"Current Process: <",[global]),
ct:log("Found ~p",[Matches]),
true = length(Matches) > 1,
file:delete(Dump),
ok.
get_dump_when_done(Dump) ->
case file:read_file_info(Dump) of
{ok, #file_info{ size = Sz }} ->
get_dump_when_done(Dump, Sz);
{error, enoent} ->
timer:sleep(1000),
get_dump_when_done(Dump)
end.
get_dump_when_done(Dump, Sz) ->
timer:sleep(1000),
case file:read_file_info(Dump) of
{ok, #file_info{ size = Sz }} ->
file:read_file(Dump);
{ok, #file_info{ size = NewSz }} ->
get_dump_when_done(Dump, NewSz)
end.
load() ->
lists:seq(1,10000),
load().
start_node(Config) when is_list(Config) ->
Pa = filename:dirname(code:which(?MODULE)),
Name = list_to_atom(atom_to_list(?MODULE)
++ "-"
++ atom_to_list(proplists:get_value(testcase, Config))
++ "-"
++ integer_to_list(erlang:system_time(second))
++ "-"
++ integer_to_list(erlang:unique_integer([positive]))),
test_server:start_node(Name, slave, [{args, "-pa "++Pa}]).
