System.Posix.Poll

Documentation

data Fd

Constructors

Fd

Fields

• fd :: Fd
• events :: Events
• rEvents :: Events

Instances

Storable Fd

Methods

sizeOf :: Fd -> Int

alignment :: Fd -> Int

peekElemOff :: Ptr Fd -> Int -> IO Fd

pokeElemOff :: Ptr Fd -> Int -> Fd -> IO ()

peekByteOff :: Ptr b -> Int -> IO Fd

pokeByteOff :: Ptr b -> Int -> Fd -> IO ()

peek :: Ptr Fd -> IO Fd

poke :: Ptr Fd -> Fd -> IO ()

data Event

Constructors

Other Int

In

Pri

Out

Err

Hup

NVal

Instances

Enum Event

The Enum instance may not be very efficient, but it should hardly be used, at all. Better use constants such as inp and set manipulation. If the binary logarithm is computed by constant unfolding, performance would be better, but direct set manipulation is still faster. We implement the Enum instance in this way, in order to stay independent from the particular Poll definitions, that may differ between platforms.

Methods

succ :: Event -> Event

pred :: Event -> Event

toEnum :: Int -> Event

fromEnum :: Event -> Int

enumFrom :: Event -> [Event]

enumFromThen :: Event -> Event -> [Event]

enumFromTo :: Event -> Event -> [Event]

enumFromThenTo :: Event -> Event -> Event -> [Event]

Eq Event

Methods

(==) :: Event -> Event -> Bool

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

Ord Event

Methods

compare :: Event -> Event -> Ordering

(<) :: Event -> Event -> Bool

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

(>) :: Event -> Event -> Bool

(>=) :: Event -> Event -> Bool

max :: Event -> Event -> Event

min :: Event -> Event -> Event

Show Event

Methods

showsPrec :: Int -> Event -> ShowS

show :: Event -> String

showList :: [Event] -> ShowS

Ix Event

Methods

range :: (Event, Event) -> [Event]

index :: (Event, Event) -> Event -> Int

unsafeIndex :: (Event, Event) -> Event -> Int

inRange :: (Event, Event) -> Event -> Bool

rangeSize :: (Event, Event) -> Int

unsafeRangeSize :: (Event, Event) -> Int

type Events = T CShort Event

inp :: Events

pri :: Events

out :: Events

err :: Events

hup :: Events

nVal :: Events