hsyslog-5.0.2: FFI interface to syslog(3) from POSIX.1-2001

Maintainersimons@cryp.to
Stabilityprovisional
PortabilityPOSIX
Safe HaskellSafe
LanguageHaskell2010

System.Posix.Syslog.Priority

Contents

Description

FFI bindings to syslog(3) from POSIX.1-2008. This module is intended for purposes of low-level implementation. Users of this library should prefer safer and more convenient API provided by System.Posix.Syslog.

Synopsis

Message Priorities

data Priority Source #

Log messages are prioritized with one of the following levels:

>>> [minBound..maxBound] :: [Priority]
[Emergency,Alert,Critical,Error,Warning,Notice,Info,Debug]

The Ord instance for Priority considers the more urgent level lower than less urgent ones:

>>> Emergency < Debug
True
>>> minimum [minBound..maxBound] :: Priority
Emergency
>>> maximum [minBound..maxBound] :: Priority
Debug

Constructors

Emergency

the system is unusable

Alert

action must be taken immediately

Critical

critical conditions

Error

error conditions

Warning

warning conditions

Notice

normal but significant condition

Info

informational

Debug

debug-level messages

Instances
Bounded Priority Source # 
Instance details

Defined in System.Posix.Syslog.Priority

Methods

minBound :: Priority Source #

maxBound :: Priority Source #

Enum Priority Source # 
Instance details

Defined in System.Posix.Syslog.Priority

Methods

succ :: Priority -> Priority Source #

pred :: Priority -> Priority Source #

toEnum :: Int -> Priority Source #

fromEnum :: Priority -> Int Source #

enumFrom :: Priority -> [Priority] Source #

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

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

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

Eq Priority Source # 
Instance details

Defined in System.Posix.Syslog.Priority

Methods

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

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

Ord Priority Source # 
Instance details

Defined in System.Posix.Syslog.Priority

Methods

compare :: Priority -> Priority -> Ordering Source #

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

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

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

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

max :: Priority -> Priority -> Priority Source #

min :: Priority -> Priority -> Priority Source #

Read Priority Source # 
Instance details

Defined in System.Posix.Syslog.Priority

Methods

readsPrec :: Int -> ReadS Priority Source #

readList :: ReadS [Priority] Source #

readPrec :: ReadPrec Priority Source #

readListPrec :: ReadPrec [Priority] Source #

Show Priority Source # 
Instance details

Defined in System.Posix.Syslog.Priority

Methods

showsPrec :: Int -> Priority -> ShowS Source #

show :: Priority -> String Source #

showList :: [Priority] -> ShowS Source #

Generic Priority Source # 
Instance details

Defined in System.Posix.Syslog.Priority

Associated Types

type Rep Priority :: Type -> Type Source #

Methods

from :: Priority -> Rep Priority x Source #

to :: Rep Priority x -> Priority Source #

type Rep Priority Source # 
Instance details

Defined in System.Posix.Syslog.Priority

type Rep Priority = D1 (MetaData "Priority" "System.Posix.Syslog.Priority" "hsyslog-5.0.2-EdZblcs7AZL4hXalTeyMko" False) (((C1 (MetaCons "Emergency" PrefixI False) (U1 :: Type -> Type) :+: C1 (MetaCons "Alert" PrefixI False) (U1 :: Type -> Type)) :+: (C1 (MetaCons "Critical" PrefixI False) (U1 :: Type -> Type) :+: C1 (MetaCons "Error" PrefixI False) (U1 :: Type -> Type))) :+: ((C1 (MetaCons "Warning" PrefixI False) (U1 :: Type -> Type) :+: C1 (MetaCons "Notice" PrefixI False) (U1 :: Type -> Type)) :+: (C1 (MetaCons "Info" PrefixI False) (U1 :: Type -> Type) :+: C1 (MetaCons "Debug" PrefixI False) (U1 :: Type -> Type))))

fromPriority :: Priority -> CInt Source #

Translate a Priority into the system-dependent identifier that's used by the syslog(3) implementation.