Struct LogBridge 

pub struct LogBridge { /* private fields */ }

Available on crate feature log and (crate features log or tracing) only.

Routes records from the log facade into a Logger.

• Levels map one to one (log::Level::Warn becomes Level::Warn, and so on).
• The record’s target, file and line are preserved.
• The message’s format arguments are rendered into a reused thread-local buffer (no allocation in steady state).
• Structured key-values (log::info!(user = "alice"; "login")) become fields. Strings, integers, floats, booleans and chars keep their type; anything else is rendered through its Display implementation when a sink serializes the record. Up to 16 key-values are collected without allocating.

Examples

use log_io::compat::LogBridge;
use log_io::{Level, Logger};

let logger = Logger::builder().level(Level::Info).stdout_logfmt().build();
LogBridge::new(logger).install()?;

log::info!(user = "alice", attempts = 3; "login succeeded");

Implementations

impl LogBridge

pub const fn new(logger: Logger) -> Self

Wrap logger.

pub const fn logger(&self) -> &Logger

The wrapped logger.

pub fn install(self) -> Result<(), SetLoggerError>

Install as the log crate’s global logger and set log::max_level from the logger’s Logger::min_level, so disabled log macros cost a single comparison.

Errors

Returns log::SetLoggerError if a log logger is already installed.

Trait Implementations

impl Clone for LogBridge

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LogBridge

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

Formats the value using the given formatter.

impl Log for LogBridge

fn enabled(&self, metadata: &Metadata<'_>) -> bool

Determines if a log message with the specified metadata would be logged.

fn log(&self, record: &Record<'_>)

Logs the Record.

fn flush(&self)

Flushes any buffered records.