Trait slog::Drain

pub trait Drain: Send + Sync {
    fn log(&self, buf: &mut Vec<u8>, info: &Record, &OwnedKeyValueList) -> Result<()>;
}

Logging drain

Drains generally mean destination for logs, but slog generalize the term. Drain-s are responsible for filtering, formatting and writing the log records into given destination.

Implementing this trait allows writing own Drains, that can be combined with other drains.

Required Methods

fn log(&self, buf: &mut Vec<u8>, info: &Record, &OwnedKeyValueList) -> Result<()>

Write one logging record As an optimization (avoiding allocations), loggers are responsible for providing a byte buffer, that Drain can use for their own needs.

Implementors

• impl<D: Drain> Drain for Box<D>
• impl<D: Drain> Drain for Arc<D>
• impl Drain for Discard
• impl Drain for AtomicSwitch
• impl<W: 'static + Write + Send, F: Format + Send> Drain for Streamer<W, F>
• impl<F: Format + Send> Drain for AsyncStreamer<F>
• impl<D: Drain> Drain for Filter<D>
• impl<D: Drain> Drain for LevelFilter<D>
• impl<D1: Drain, D2: Drain> Drain for Duplicate<D1, D2>
• impl<D1: Drain, D2: Drain> Drain for Failover<D1, D2>