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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 1996-2018. 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%
%%
%% Description: Simulates the behaviour that a child process may have.
%% Is used by the supervisor_SUITE test suite.
-module(supervisor_1).
-export([start_child/0, start_child/1, init/1]).
-export([handle_call/3, handle_info/2, terminate/2]).
start_child(ignore) ->
case get(child_ignored) of
true ->
start_child();
_ ->
put(child_ignored, true),
ignore
end;
start_child(error) ->
case get(start_child_error) of
undefined ->
put(start_child_error, set),
start_child();
set -> gen_server:start_link(?MODULE, error, [])
end;
start_child({return, Term}) ->
Term;
start_child(Extra) ->
{ok, Pid} = gen_server:start_link(?MODULE, normal, []),
{ok, Pid, Extra}.
start_child() ->
gen_server:start_link(?MODULE, normal, []).
init(normal) ->
process_flag(trap_exit, true),
{ok, {}}.
handle_call(Req, _From, State) ->
{reply, Req, State}.
handle_info(die, State) ->
{stop, died, State};
handle_info(stop, State) ->
{stop, normal, State};
handle_info({'EXIT',_,shutdown}, State) ->
{stop, shutdown, State};
handle_info({'EXIT',_,{shutdown,Term}}, State) ->
{stop, {shutdown,Term}, State};
handle_info({sleep, Time}, State) ->
io:format("FOO: ~p~n", [Time]),
timer:sleep(Time),
io:format("FOO: sleept~n", []),
handle_info({sleep, Time}, State);
handle_info(_, State) ->
{noreply, State}.
terminate(_Reason, _State) ->
ok.
|
