_site/cover/msc_sup.COVER.html

1 %% Copyright (c) 2023 Peter Morgan <peter.james.morgan@gmail.com>
2 %%
3 %% Licensed under the Apache License, Version 2.0 (the "License");
4 %% you may not use this file except in compliance with the License.
5 %% You may obtain a copy of the License at
6 %%
7 %% http://www.apache.org/licenses/LICENSE-2.0
8 %%
9 %% Unless required by applicable law or agreed to in writing, software
10 %% distributed under the License is distributed on an "AS IS" BASIS,
11 %% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 %% See the License for the specific language governing permissions and
13 %% limitations under the License.
14
15
16 -module(msc_sup).
17
18
19 -behaviour(supervisor).
20 -export([get_child/2]).
21 -export([get_child_pid/2]).
22 -export([init/1]).
23 -export([start_link/0]).
24 -export([supervisor/1]).
25 -export([worker/1]).
26
27
28 start_link() ->
29 1 supervisor:start_link({local, ?MODULE}, ?MODULE, []).
30
31
32 init([]) ->
33 1 Procs = [worker(msc_telemetry),
34 supervisor(msc_connections_sup)],
35 1 {ok, {#{}, Procs}}.
36
37
38 worker(Arg) ->
39 5 child(Arg).
40
41
42 supervisor(Arg) ->
43 2 maps:merge(child(Arg), #{type => supervisor}).
44
45
46 child(#{m := M} = Arg) ->
47 7 maps:merge(
48 #{id => msc_util:tl_snake_case(M), start => mfargs(Arg)},
49 maps:with(keys(), Arg));
50
51 child(Arg) when is_atom(Arg) ->
52 2 ?FUNCTION_NAME(#{m => Arg}).
53
54
55 mfargs(#{m := M} = Arg) ->
56 7 {M, maps:get(f, Arg, start_link), maps:get(args, Arg, [])}.
57
58
59 keys() ->
60 7 [id, start, restart, significant, shutdown, type, modules].
61
62
63 get_child(SupRef, Id) ->
64 6 lists:keyfind(Id, 1, supervisor:which_children(SupRef)).
65
66
67 get_child_pid(SupRef, Id) ->
68 2 element(2, get_child(SupRef, Id)).
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