_site/cover/pgmp_sup.COVER.html

1 %% Copyright (c) 2022 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(pgmp_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 10 supervisor:start_link({local, ?MODULE}, ?MODULE, []).
30
31
32 init([]) ->
33 10 {ok, configuration()}.
34
35
36 configuration() ->
37 10 {pgmp_config:sup_flags(?MODULE), children()}.
38
39
40 children() ->
41 10 [worker(pgmp_telemetry),
42 worker(pgmp_message_tags),
43 worker(pgmp_error_notice_fields),
44 supervisor(pgmp_dbs_sup)].
45
46
47 worker(Arg) ->
48 207 child(Arg).
49
50
51 supervisor(Arg) ->
52 70 maps:merge(child(Arg), #{type => supervisor}).
53
54
55 child(#{m := M} = Arg) ->
56 277 maps:merge(
57 #{id => pgmp_util:tl_snake_case(M), start => mfargs(Arg)},
58 maps:with(keys(), Arg));
59
60 child(Arg) when is_atom(Arg) ->
61 40 ?FUNCTION_NAME(#{m => Arg}).
62
63
64 mfargs(#{m := M} = Arg) ->
65 277 {M, maps:get(f, Arg, start_link), maps:get(args, Arg, [])}.
66
67
68 keys() ->
69 277 [id, start, restart, significant, shutdown, type, modules].
70
71
72 get_child(SupRef, Id) ->
73 102 lists:keyfind(Id, 1, supervisor:which_children(SupRef)).
74
75
76 get_child_pid(SupRef, Id) ->
77 26 element(2, get_child(SupRef, Id)).
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