Copyright | (c) Anton Gushcha, 2015-2016 |
---|---|
License | BSD3 |
Maintainer | ncrashed@gmail.com |
Stability | experimental |
Portability | POSIX |
Safe Haskell | None |
Language | Haskell2010 |
Contains description of state for logging core module.
- data LoggingState s = LoggingState {
- loggingMsgs :: !(Seq (LoggingLevel, Text))
- loggingNextState :: !s
- loggingFile :: !(Maybe Handle)
- loggingFilter :: !LoggingFilter
- loggignDebug :: !Bool
- data LoggingLevel
- data LoggingSink
- emptyLoggingState :: s -> LoggingState s
- filterLogMessage :: LoggingState s -> LoggingLevel -> LoggingSink -> Bool
Documentation
data LoggingState s Source
Inner state of logger.
s
- next state, states of modules are chained via nesting
LoggingState | |
|
Generic (LoggingState s) Source | |
NFData s => NFData (LoggingState s) Source | |
Monad m => MonadState (LoggingState s) (LoggingT s m) | |
type Rep (LoggingState s) Source |
data LoggingLevel Source
Describes important of logging message
LogDebug | Used for detailed logging |
LogInfo | Used for messages about normal operation of application |
LogWarn | Used for recoverable errors or defaulting to fallback behavior |
LogError | Used before throwing an exception or fatal fales |
LogMuted | Special case of message, that never goes to console, but saved into file |
data LoggingSink Source
Distanation of logging
LoggingConsole | Putting to user terminal |
LoggingFile | Putting into file |
emptyLoggingState :: s -> LoggingState s Source
Create empty module state
filterLogMessage :: LoggingState s -> LoggingLevel -> LoggingSink -> Bool Source
Returns True
if given message level is allowed to go in the sink