Wrecker.Logger

Documentation

data LogLevel

Constructors

LevelDebug

LevelInfo

LevelWarn

LevelError

Instances

Eq LogLevel

Methods

(==) :: LogLevel -> LogLevel -> Bool

(/=) :: LogLevel -> LogLevel -> Bool

Ord LogLevel

Methods

compare :: LogLevel -> LogLevel -> Ordering

(<) :: LogLevel -> LogLevel -> Bool

(<=) :: LogLevel -> LogLevel -> Bool

(>) :: LogLevel -> LogLevel -> Bool

(>=) :: LogLevel -> LogLevel -> Bool

max :: LogLevel -> LogLevel -> LogLevel

min :: LogLevel -> LogLevel -> LogLevel

Read LogLevel

Methods

readsPrec :: Int -> ReadS LogLevel

readList :: ReadS [LogLevel]

readPrec :: ReadPrec LogLevel

readListPrec :: ReadPrec [LogLevel]

Show LogLevel

Methods

showsPrec :: Int -> LogLevel -> ShowS

show :: LogLevel -> String

showList :: [LogLevel] -> ShowS

data Logger

Constructors

Logger

Fields

• thread :: ThreadId
• inChan :: InChan (Maybe String)
• wait :: IO ()
• currentLevel :: LogLevel

newLogger

Arguments

:: Handle

The Handle to log to.

-> Int

Max buffer size

-> LogLevel

Minimum log level to log.

-> IO Logger

Create a Logger with the given Handle and max buffer size. The logger will drop messages if it is unable to keep up and it's message buffer goes over the max size.

newStdErrLogger :: Int -> LogLevel -> IO Logger

Create a logger using stderr. This is the typical way a logger is created.

readLoop :: Handle -> OutChan (Maybe String) -> MVar () -> IO ThreadId

writeLogger :: Logger -> LogLevel -> String -> IO Bool

shutdownLogger :: Int -> Logger -> IO ()

forceShutdownLogger :: Logger -> IO ()

logDebug :: Logger -> String -> IO Bool

logInfo :: Logger -> String -> IO Bool

logWarn :: Logger -> String -> IO Bool

logError :: Logger -> String -> IO Bool