PostgreSQL: Check config file loaded on runtime

1/ Current config loaded to memory at runtime
TABLE pg_file_settings;
SELECT * FROM pg_catalog.pg_file_settings order by name asc;
SELECT * FROM pg_catalog.pg_file_settings order by sourceline asc;

postgres=# SELECT count (*) FROM pg_catalog.pg_file_settings;

 count 

-------

    77

(1 row)

2/ Ref:
SELECT pg_read_file('pg_hba.conf');
select pg_reload_conf();