{-# GHC_PRAGMA INTERFACE VERSION 5 #-}
interface LibPosixIO where
import PreludeIOError(IOError13)
import PreludeMonadicIO(Either)
import PreludeStdIO(Maybe, SeekMode)
data ChannelOption   = AppendOnWrite | CloseOnExec | NonBlockingRead
type FileLock = (LockRequest, SeekMode, Int, Int)
data LockRequest   = ReadLock | WriteLock | Unlock
closeChannel :: Int -> _State _RealWorld -> (Either IOError13 (), _State _RealWorld)
	{-# GHC_PRAGMA _A_ 2 _U_ 11 _N_ _S_ "U(P)U(P)" {_A_ 2 _U_ 22 _N_ _N_ _N_ _N_} _N_ _N_ #-}
createPipe :: _State _RealWorld -> (Either IOError13 (Int, Int), _State _RealWorld)
	{-# GHC_PRAGMA _A_ 1 _U_ 1 _N_ _S_ "U(P)" {_A_ 1 _U_ 2 _N_ _N_ _N_ _N_} _N_ _N_ #-}
dupChannel :: Int -> _State _RealWorld -> (Either IOError13 Int, _State _RealWorld)
	{-# GHC_PRAGMA _A_ 2 _U_ 11 _N_ _S_ "U(P)U(P)" {_A_ 2 _U_ 22 _N_ _N_ _N_ _N_} _N_ _N_ #-}
dupChannelTo :: Int -> Int -> _State _RealWorld -> (Either IOError13 (), _State _RealWorld)
	{-# GHC_PRAGMA _A_ 3 _U_ 111 _N_ _S_ "U(P)U(P)U(P)" {_A_ 3 _U_ 222 _N_ _N_ _N_ _N_} _N_ _N_ #-}
getLock :: Int -> (LockRequest, SeekMode, Int, Int) -> _State _RealWorld -> (Either IOError13 (Maybe (Int, (LockRequest, SeekMode, Int, Int))), _State _RealWorld)
	{-# GHC_PRAGMA _A_ 3 _U_ 111 _N_ _S_ "LU(EEU(P)U(P))U(P)" {_A_ 3 _U_ 112 _N_ _N_ _N_ _N_} _N_ _N_ #-}
queryChannelOption :: ChannelOption -> Int -> _State _RealWorld -> (Either IOError13 Bool, _State _RealWorld)
	{-# GHC_PRAGMA _A_ 3 _U_ 211 _N_ _S_ "EU(P)U(P)" {_A_ 3 _U_ 222 _N_ _N_ _N_ _N_} _N_ _N_ #-}
readChannel :: Int -> Int -> _State _RealWorld -> (Either IOError13 ([Char], Int), _State _RealWorld)
	{-# GHC_PRAGMA _A_ 3 _U_ 111 _N_ _S_ "LU(P)U(P)" {_A_ 3 _U_ 122 _N_ _N_ _N_ _N_} _N_ _N_ #-}
seekChannel :: Int -> SeekMode -> Int -> _State _RealWorld -> (Either IOError13 Int, _State _RealWorld)
	{-# GHC_PRAGMA _A_ 4 _U_ 1111 _N_ _S_ "U(P)EU(P)U(P)" {_A_ 4 _U_ 2122 _N_ _N_ _N_ _N_} _N_ _N_ #-}
setChannelOption :: ChannelOption -> Bool -> Int -> _State _RealWorld -> (Either IOError13 (), _State _RealWorld)
	{-# GHC_PRAGMA _A_ 4 _U_ 2111 _N_ _S_ "ELU(P)U(P)" {_A_ 4 _U_ 2122 _N_ _N_ _N_ _N_} _N_ _N_ #-}
setLock :: Int -> (LockRequest, SeekMode, Int, Int) -> _State _RealWorld -> (Either IOError13 (), _State _RealWorld)
	{-# GHC_PRAGMA _A_ 3 _U_ 111 _N_ _S_ "LU(EEU(P)U(P))U(P)" {_A_ 3 _U_ 112 _N_ _N_ _N_ _N_} _N_ _N_ #-}
waitToSetLock :: Int -> (LockRequest, SeekMode, Int, Int) -> _State _RealWorld -> (Either IOError13 (), _State _RealWorld)
	{-# GHC_PRAGMA _A_ 3 _U_ 111 _N_ _S_ "LU(EEU(P)U(P))U(P)" {_A_ 3 _U_ 112 _N_ _N_ _N_ _N_} _N_ _N_ #-}
writeChannel :: Int -> [Char] -> _State _RealWorld -> (Either IOError13 Int, _State _RealWorld)
	{-# GHC_PRAGMA _A_ 3 _U_ 122 _N_ _S_ "U(P)SL" {_A_ 3 _U_ 222 _N_ _N_ _N_ _N_} _N_ _N_ #-}