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authorZandra Hird <[email protected]>2015-06-16 16:24:09 +0200
committerZandra Hird <[email protected]>2015-06-16 16:24:09 +0200
commit81bae7de082c6fbe3fecc5ab562560c5c55f66b6 (patch)
treec6da88c35719907dd228a98dc9db01da22aad58c
parentbb6ea14fb8ae4685c4ac9e549ee38834254095e0 (diff)
parentb74a978af2253773a2d74876d4f4abccde25a673 (diff)
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Merge branch 'nybek/fix_supervisor_get_childspec'
* nybek/fix_supervisor_get_childspec: Fix supervisor:get_childspec/2 for simple_one_for_one OTP-12841
-rw-r--r--lib/stdlib/src/supervisor.erl27
-rw-r--r--lib/stdlib/test/supervisor_SUITE.erl29
2 files changed, 42 insertions, 14 deletions
diff --git a/lib/stdlib/src/supervisor.erl b/lib/stdlib/src/supervisor.erl
index 1d7396adee..ac51bb3b79 100644
--- a/lib/stdlib/src/supervisor.erl
+++ b/lib/stdlib/src/supervisor.erl
@@ -393,6 +393,15 @@ handle_call({start_child, EArgs}, _From, State) when ?is_simple(State) ->
{reply, What, State}
end;
+handle_call({start_child, ChildSpec}, _From, State) ->
+ case check_childspec(ChildSpec) of
+ {ok, Child} ->
+ {Resp, NState} = handle_start_child(Child, State),
+ {reply, Resp, NState};
+ What ->
+ {reply, {error, What}, State}
+ end;
+
%% terminate_child for simple_one_for_one can only be done with pid
handle_call({terminate_child, Name}, _From, State) when not is_pid(Name),
?is_simple(State) ->
@@ -411,20 +420,10 @@ handle_call({terminate_child, Name}, _From, State) ->
{reply, {error, not_found}, State}
end;
-%%% The requests delete_child and restart_child are invalid for
-%%% simple_one_for_one supervisors.
-handle_call({_Req, _Data}, _From, State) when ?is_simple(State) ->
+%% restart_child request is invalid for simple_one_for_one supervisors
+handle_call({restart_child, _Name}, _From, State) when ?is_simple(State) ->
{reply, {error, simple_one_for_one}, State};
-handle_call({start_child, ChildSpec}, _From, State) ->
- case check_childspec(ChildSpec) of
- {ok, Child} ->
- {Resp, NState} = handle_start_child(Child, State),
- {reply, Resp, NState};
- What ->
- {reply, {error, What}, State}
- end;
-
handle_call({restart_child, Name}, _From, State) ->
case get_child(Name, State) of
{value, Child} when Child#child.pid =:= undefined ->
@@ -446,6 +445,10 @@ handle_call({restart_child, Name}, _From, State) ->
{reply, {error, not_found}, State}
end;
+%% delete_child request is invalid for simple_one_for_one supervisors
+handle_call({delete_child, _Name}, _From, State) when ?is_simple(State) ->
+ {reply, {error, simple_one_for_one}, State};
+
handle_call({delete_child, Name}, _From, State) ->
case get_child(Name, State) of
{value, Child} when Child#child.pid =:= undefined ->
diff --git a/lib/stdlib/test/supervisor_SUITE.erl b/lib/stdlib/test/supervisor_SUITE.erl
index 015b09f35e..31d4b44f30 100644
--- a/lib/stdlib/test/supervisor_SUITE.erl
+++ b/lib/stdlib/test/supervisor_SUITE.erl
@@ -39,7 +39,8 @@
sup_start_ignore_temporary_child_start_child_simple/1,
sup_start_ignore_permanent_child_start_child_simple/1,
sup_start_error_return/1, sup_start_fail/1,
- sup_start_map/1, sup_start_map_faulty_specs/1,
+ sup_start_map/1, sup_start_map_simple/1,
+ sup_start_map_faulty_specs/1,
sup_stop_infinity/1, sup_stop_timeout/1, sup_stop_brutal_kill/1,
child_adm/1, child_adm_simple/1, child_specs/1, extra_return/1,
sup_flags/1]).
@@ -103,7 +104,7 @@ groups() ->
sup_start_ignore_permanent_child_start_child_simple,
sup_start_error_return, sup_start_fail]},
{sup_start_map, [],
- [sup_start_map, sup_start_map_faulty_specs]},
+ [sup_start_map, sup_start_map_simple, sup_start_map_faulty_specs]},
{sup_stop, [],
[sup_stop_infinity, sup_stop_timeout,
sup_stop_brutal_kill]},
@@ -323,6 +324,30 @@ sup_start_map(Config) when is_list(Config) ->
terminate(Pid, shutdown).
%%-------------------------------------------------------------------------
+%% Tests that the supervisor process starts correctly with map
+%% startspec, and that the full childspec can be read when using
+%% simple_one_for_one strategy.
+sup_start_map_simple(Config) when is_list(Config) ->
+ process_flag(trap_exit, true),
+ SupFlags = #{strategy=>simple_one_for_one},
+ ChildSpec = #{id=>undefined,
+ start=>{supervisor_1, start_child, []},
+ restart=>temporary},
+ {ok, Pid} = start_link({ok, {SupFlags, [ChildSpec]}}),
+
+ {ok, Child1} = supervisor:start_child(Pid, []),
+ {ok, Child2} = supervisor:start_child(Pid, []),
+ {ok, Child3} = supervisor:start_child(Pid, []),
+
+ Spec = ChildSpec#{type=>worker, shutdown=>5000, modules=>[supervisor_1]},
+
+ {ok, Spec} = supervisor:get_childspec(Pid, Child1),
+ {ok, Spec} = supervisor:get_childspec(Pid, Child2),
+ {ok, Spec} = supervisor:get_childspec(Pid, Child3),
+ {error,not_found} = supervisor:get_childspec(Pid, self()),
+ terminate(Pid, shutdown).
+
+%%-------------------------------------------------------------------------
%% Tests that the supervisor produces good error messages when start-
%% and child specs are faulty.
sup_start_map_faulty_specs(Config) when is_list(Config) ->