Hbro.Logger

Documentation

data LogMessage

Log event

Constructors

LogMessage

Instances

Show LogMessage

Event LogMessage

type Input LogMessage = (Loc, LogSource, LogLevel, Text)

class MonadLogger m => MonadThreadedLogger m where

Methods

addLogHandler :: (Input LogMessage -> IO ()) -> m ()

Instances

(Monad m, MonadThreadedLogger m) => MonadThreadedLogger (ResourceT m)

(ControlIO m, MonadResource m) => MonadThreadedLogger (ThreadedLoggingT m)

(Monad m, MonadThreadedLogger m) => MonadThreadedLogger (ExceptT e m)

data ThreadedLoggingT m a

Instances

MonadTrans ThreadedLoggingT

MonadTransControl ThreadedLoggingT

MonadBaseControl b m => MonadBaseControl b (ThreadedLoggingT m)

MonadBase b m => MonadBase b (ThreadedLoggingT m)

Monad m => Monad (ThreadedLoggingT m)

Functor m => Functor (ThreadedLoggingT m)

Applicative m => Applicative (ThreadedLoggingT m)

MonadIO m => MonadIO (ThreadedLoggingT m)

MonadThrow m => MonadThrow (ThreadedLoggingT m)

(MonadIO m, Functor m) => MonadLogger (ThreadedLoggingT m)

MonadResource m => MonadResource (ThreadedLoggingT m)

(ControlIO m, MonadResource m) => MonadThreadedLogger (ThreadedLoggingT m)

type StT ThreadedLoggingT a = StT (ReaderT (Signal LogMessage, LogLevel)) a

type StM (ThreadedLoggingT m) a = ComposeSt ThreadedLoggingT m a

runThreadedLoggingT :: (ControlIO m, MonadResource m) => LogLevel -> ThreadedLoggingT m b -> m b

logErrors :: (MonadLogger m, Functor m, MonadError Text m) => m a -> m (Maybe a)

Like catchError, except that the error is automatically logged, then discarded.

logErrors_ :: (MonadLogger m, Functor m, MonadError Text m) => m a -> m ()

Like logErrors, but discards the result.