Struct slog::Duplicate

pub struct Duplicate<D1: Drain, D2: Drain>(pub D1, pub D2);

Drain duplicating records into two other Drains

Can be nested for more than two outputs.

Methods

impl<D1: Drain, D2: Drain> Duplicate<D1, D2>

fn new(drain1: D1, drain2: D2) -> Self

Create Duplicate

Trait Implementations

impl<D1: Drain, D2: Drain> Drain for Duplicate<D1, D2>

type Ok = (D1::Ok, D2::Ok)

Type returned by this drain

type Err = (Result<D1::Ok, D1::Err>, Result<D2::Ok, D2::Err>)

Type of potential errors that can be returned by this Drain

fn log(&self,
       record: &Record,
       logger_values: &OwnedKVList)
       -> Result<Self::Ok, Self::Err>

Handle one logging statement (Record)

fn map<F, R>(self, f: F) -> R where Self: Sized, F: FnOnce(Self) -> R

Pass Drain through a closure, eg. to wrap into another Drain.

fn filter<F>(self, f: F) -> Filter<Self, F> where Self: Sized, F: Fn(&Record) -> bool + 'static + Send + Sync

Filter logging records passed to Drain

fn filter_level(self, level: Level) -> LevelFilter<Self> where Self: Sized

Filter logging records passed to Drain (by level)

fn map_err<F, E>(self, f: F) -> MapError<Self, E> where Self: Sized, F: 'static + Sync + Send + Fn(Self::Err) -> E

Map logging errors returned by this drain

fn ignore_res(self) -> IgnoreResult<Self> where Self: Sized

Ignore results returned by this drain