Struct simple_logging::SimpleLogger

pub struct SimpleLogger<T: Write> { /* fields omitted */ }

A simple logger for the log facade.

Each and every log message obeys the following fixed and easily-parsable format:

[<hh>:<mm>:<ss>.<SSS>] (<thread-id>) <level> <message>\n

Where <hh> denotes hours zero-padded to at least two digits, <mm> denotes minutes zero-padded to two digits, <ss> denotes seconds zero-padded to two digits and <SSS> denotes miliseconds zero-padded to three digits. <thread-id> is an implementation-specific alphanumeric ID. <level> is the log level as defined by log::LogLevel and padded right with spaces. <message> is the log message. Note that <message> is written to the log as-is, including any embedded newlines.

Examples

SimpleLogger implements log::Log, and as such may be used with log::set_logger directly:

use log::LogLevelFilter;
use simple_logging::SimpleLogger;
use std::io;

log::set_logger(|max_log_level| {
    max_log_level.set(LogLevelFilter::Info);

    Box::new(SimpleLogger::new(io::sink()))
});

However, because this is the expected way to use SimpleLogger, there is a shorthand function for the operation above: log_to().

Errors

Any errors returned by the sink when writing are ignored.

See also

log_to_file(), log_to_stderr(), log_to()

Methods

impl<T: Write> SimpleLogger<T>

fn new(sink: T) -> Self

Create a new SimpleLogger.

Trait Implementations

impl<T: Write + Send + Sync> Log for SimpleLogger<T>

fn enabled(&self, _: &LogMetadata) -> bool

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

fn log(&self, record: &LogRecord)

Logs the LogRecord.