hslogger-1.3.1.1: Versatile logging framework
CopyrightCopyright (C) 2004-2011 John Goerzen
LicenseBSD3
Portabilityportable
Safe HaskellSafe-Inferred
LanguageHaskell2010

System.Log

Contents

Description

Haskell Logging Framework

Written by John Goerzen, jgoerzen@complete.org

This module defines basic types used for logging.

Extensive documentation is available in System.Log.Logger.

Synopsis

Types

data Priority Source #

Priorities are used to define how important a log message is. Users can filter log messages based on priorities.

These have their roots on the traditional syslog system. The standard definitions are given below, but you are free to interpret them however you like. They are listed here in ascending importance order.

Constructors

DEBUG

Debug messages

INFO

Information

NOTICE

Normal runtime conditions

WARNING

General Warnings

ERROR

General Errors

CRITICAL

Severe situations

ALERT

Take immediate action

EMERGENCY

System is unusable

Instances

Instances details
Data Priority Source # 
Instance details

Defined in System.Log

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Priority -> c Priority #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Priority #

toConstr :: Priority -> Constr #

dataTypeOf :: Priority -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Priority) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Priority) #

gmapT :: (forall b. Data b => b -> b) -> Priority -> Priority #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Priority -> r #

gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Priority -> r #

gmapQ :: (forall d. Data d => d -> u) -> Priority -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Priority -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Priority -> m Priority #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Priority -> m Priority #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Priority -> m Priority #

Bounded Priority Source # 
Instance details

Defined in System.Log

Methods

minBound :: Priority #

maxBound :: Priority #

Enum Priority Source # 
Instance details

Defined in System.Log

Methods

succ :: Priority -> Priority #

pred :: Priority -> Priority #

toEnum :: Int -> Priority #

fromEnum :: Priority -> Int #

enumFrom :: Priority -> [Priority] #

enumFromThen :: Priority -> Priority -> [Priority] #

enumFromTo :: Priority -> Priority -> [Priority] #

enumFromThenTo :: Priority -> Priority -> Priority -> [Priority] #

Generic Priority Source # 
Instance details

Defined in System.Log

Associated Types

type Rep Priority 
Instance details

Defined in System.Log

type Rep Priority = D1 ('MetaData "Priority" "System.Log" "hslogger-1.3.1.1-inplace" 'False) (((C1 ('MetaCons "DEBUG" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "INFO" 'PrefixI 'False) (U1 :: Type -> Type)) :+: (C1 ('MetaCons "NOTICE" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "WARNING" 'PrefixI 'False) (U1 :: Type -> Type))) :+: ((C1 ('MetaCons "ERROR" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "CRITICAL" 'PrefixI 'False) (U1 :: Type -> Type)) :+: (C1 ('MetaCons "ALERT" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "EMERGENCY" 'PrefixI 'False) (U1 :: Type -> Type))))

Methods

from :: Priority -> Rep Priority x #

to :: Rep Priority x -> Priority #

Read Priority Source # 
Instance details

Defined in System.Log

Methods

readsPrec :: Int -> ReadS Priority #

readList :: ReadS [Priority] #

readPrec :: ReadPrec Priority #

readListPrec :: ReadPrec [Priority] #

Show Priority Source # 
Instance details

Defined in System.Log

Methods

showsPrec :: Int -> Priority -> ShowS #

show :: Priority -> String #

showList :: [Priority] -> ShowS #

NFData Priority Source #

Since: 1.3.1.0

Instance details

Defined in System.Log

Methods

rnf :: Priority -> () #

Eq Priority Source # 
Instance details

Defined in System.Log

Methods

(==) :: Priority -> Priority -> Bool #

(/=) :: Priority -> Priority -> Bool #

Ord Priority Source # 
Instance details

Defined in System.Log

Methods

compare :: Priority -> Priority -> Ordering #

(<) :: Priority -> Priority -> Bool #

(<=) :: Priority -> Priority -> Bool #

(>) :: Priority -> Priority -> Bool #

(>=) :: Priority -> Priority -> Bool #

max :: Priority -> Priority -> Priority #

min :: Priority -> Priority -> Priority #

type Rep Priority Source # 
Instance details

Defined in System.Log

type Rep Priority = D1 ('MetaData "Priority" "System.Log" "hslogger-1.3.1.1-inplace" 'False) (((C1 ('MetaCons "DEBUG" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "INFO" 'PrefixI 'False) (U1 :: Type -> Type)) :+: (C1 ('MetaCons "NOTICE" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "WARNING" 'PrefixI 'False) (U1 :: Type -> Type))) :+: ((C1 ('MetaCons "ERROR" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "CRITICAL" 'PrefixI 'False) (U1 :: Type -> Type)) :+: (C1 ('MetaCons "ALERT" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "EMERGENCY" 'PrefixI 'False) (U1 :: Type -> Type))))

type LogRecord = (Priority, String) Source #

Internal type of log records