System.Logging.LogSink.Config

Documentation

data SinkConfig

Constructors

SinkConfig

Fields

• sinkConfigLevel :: LogLevel

  Ignore all log records with a smaller log level than specified.

• sinkConfigFormat :: String

  Format string for formatting log records

• sinkConfigTarget :: LogTarget

  Target for log messages.

Instances

Eq SinkConfig

Methods

(==) :: SinkConfig -> SinkConfig -> Bool

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

Show SinkConfig

Methods

showsPrec :: Int -> SinkConfig -> ShowS

show :: SinkConfig -> String

showList :: [SinkConfig] -> ShowS

defaultSinkConfig :: SinkConfig

A sink configuration that logs all messages to StdErr. The used format is the same as the one used by defaultFormat.

data LogLevel :: *

Constructors

TRACE

DEBUG

INFO

WARN

ERROR

Instances

Bounded LogLevel

Methods

minBound :: LogLevel

maxBound :: LogLevel

Enum LogLevel

Methods

succ :: LogLevel -> LogLevel

pred :: LogLevel -> LogLevel

toEnum :: Int -> LogLevel

fromEnum :: LogLevel -> Int

enumFrom :: LogLevel -> [LogLevel]

enumFromThen :: LogLevel -> LogLevel -> [LogLevel]

enumFromTo :: LogLevel -> LogLevel -> [LogLevel]

enumFromThenTo :: LogLevel -> LogLevel -> LogLevel -> [LogLevel]

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 LogTarget

Constructors

StdErr

SysLog

Instances

Eq LogTarget

Methods

(==) :: LogTarget -> LogTarget -> Bool

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

Show LogTarget

Methods

showsPrec :: Int -> LogTarget -> ShowS

show :: LogTarget -> String

showList :: [LogTarget] -> ShowS

toLogSink :: SinkConfig -> Either String LogSink

Convert the given sink configuration to a LogSink. Return Left if the format string of the configuration is invalid.

setupLogging :: [SinkConfig] -> IO ()

Set up the global LogSink according to the given sink configurations.