Struct LoggerBuffer 

pub struct LoggerBuffer { /* private fields */ }

A log::Log implementation that stores entries in a bounded ring buffer and optionally forwards them to an inner logger (e.g. env_logger for stderr output). The buffer is exposed for in-process consumption by the log-viewer plugin.

Implementations

impl LoggerBuffer

pub fn new(max_entries: usize) -> Self

pub fn set_inner(&mut self, inner: Box<dyn Log + Send + 'static>)

Set an inner logger that every record is forwarded to in addition to the ring buffer. Call before installing as the global logger.

pub fn drain(&self) -> Vec<LogEntry>

Take a snapshot of all buffered entries, leaving the buffer empty.

pub fn snapshot(&self) -> Vec<LogEntry>

Peek at current entries without draining.

Trait Implementations

impl Log for LoggerBuffer

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.