tinylog-0.10.4: Simplistic logging using fast-logger.

Safe HaskellNone
LanguageHaskell2010

System.Logger

Description

Small layer on top of fast-logger which adds log-levels and timestamp support (using date-cache) and not much more.

Synopsis

Documentation

data Level Source

Constructors

Trace 
Debug 
Info 
Warn 
Error 
Fatal 

data Output Source

Constructors

StdOut 
StdErr 
Path FilePath 

Instances

iso8601UTC :: DateFormat Source

ISO 8601 date-time format.

new :: MonadIO m => Settings -> m Logger Source

Create a new Logger with the given Settings. Please note that the logLevel can be dynamically adjusted by setting the environment variable LOG_LEVEL accordingly. Likewise the buffer size can be dynamically set via LOG_BUFFER and netstrings encoding can be enabled with LOG_NETSTR=True

create :: MonadIO m => Output -> m Logger Source

Invokes new with default settings and the given output as log sink.

level :: Logger -> Level Source

Inspect this logger's threshold.

flush :: MonadIO m => Logger -> m () Source

Force buffered bytes to output sink.

close :: MonadIO m => Logger -> m () Source

Closes the logger.

clone :: Maybe Text -> Logger -> Logger Source

Clone the given logger and optionally give it a name (use (Just "") to clear).

log :: MonadIO m => Logger -> Level -> (Msg -> Msg) -> m () Source

Logs a message with the given level if greater or equal to the logger's threshold.

trace :: MonadIO m => Logger -> (Msg -> Msg) -> m () Source

Abbreviation of log using the corresponding log level.

debug :: MonadIO m => Logger -> (Msg -> Msg) -> m () Source

Abbreviation of log using the corresponding log level.

info :: MonadIO m => Logger -> (Msg -> Msg) -> m () Source

Abbreviation of log using the corresponding log level.

warn :: MonadIO m => Logger -> (Msg -> Msg) -> m () Source

Abbreviation of log using the corresponding log level.

err :: MonadIO m => Logger -> (Msg -> Msg) -> m () Source

Abbreviation of log using the corresponding log level.

fatal :: MonadIO m => Logger -> (Msg -> Msg) -> m () Source

Abbreviation of log using the corresponding log level.