emqx4.3/apps/emqx_auth_pgsql/include/emqx_auth_pgsql.hrl

-define(APP, emqx_auth_pgsql).

-record(auth_metrics, {
        success = 'client.auth.success',
        failure = 'client.auth.failure',
        ignore  = 'client.auth.ignore'
    }).

-define(METRICS(Type), tl(tuple_to_list(#Type{}))).
-define(METRICS(Type, K), #Type{}#Type.K).

-define(AUTH_METRICS, ?METRICS(auth_metrics)).
-define(AUTH_METRICS(K), ?METRICS(auth_metrics, K)).