Struct LogHandler 

pub struct LogHandler;

Emits one eprintln! line per event. Suitable for development; not recommended for production hot paths (stderr writes hit a global lock in libstd).

Trait Implementations

impl Clone for LogHandler

fn clone(&self) -> LogHandler

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for LogHandler

impl Debug for LogHandler

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for LogHandler

fn default() -> LogHandler

Returns the “default value” for a type.

impl WatermarkHandler for LogHandler

Available on crate feature std only.

fn on_warn(&self, event: WatermarkEvent)

Called once per crossing of the warn_pct threshold (rising edge).

fn on_critical(&self, event: WatermarkEvent)

Called once per crossing of the critical_pct threshold (rising edge).

fn on_oom(&self, event: WatermarkEvent)

Called when an allocation returns AllocError.