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| GHC.Handle | | Portability | non-portable | | Stability | internal | | Maintainer | libraries@haskell.org |
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| Description |
| This module defines the basic operations on I/O "handles".
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| Synopsis |
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| Documentation |
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| withHandle :: String -> Handle -> (Handle__ -> IO (Handle__, a)) -> IO a |
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| withHandle' :: String -> Handle -> MVar Handle__ -> (Handle__ -> IO (Handle__, a)) -> IO a |
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| withHandle_ :: String -> Handle -> (Handle__ -> IO a) -> IO a |
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| wantWritableHandle :: String -> Handle -> (Handle__ -> IO a) -> IO a |
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| wantReadableHandle :: String -> Handle -> (Handle__ -> IO a) -> IO a |
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| wantSeekableHandle :: String -> Handle -> (Handle__ -> IO a) -> IO a |
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| newEmptyBuffer :: RawBuffer -> BufferState -> Int -> Buffer |
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| allocateBuffer :: Int -> BufferState -> IO Buffer |
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| readCharFromBuffer :: RawBuffer -> Int -> IO (Char, Int) |
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| writeCharIntoBuffer :: RawBuffer -> Int -> Char -> IO Int |
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| flushWriteBufferOnly :: Handle__ -> IO () |
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| flushWriteBuffer :: FD -> Bool -> Buffer -> IO Buffer |
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| flushReadBuffer :: FD -> Buffer -> IO Buffer |
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| fillReadBuffer :: FD -> Bool -> Bool -> Buffer -> IO Buffer |
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| read_off :: FD -> Bool -> Ptr CChar -> Int -> CInt -> IO CInt |
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| read_off_ba :: FD -> Bool -> RawBuffer -> Int -> CInt -> IO CInt |
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| write_off :: CInt -> Bool -> Ptr CChar -> Int -> CInt -> IO CInt |
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| write_off_ba :: CInt -> Bool -> RawBuffer -> Int -> CInt -> IO CInt |
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| ioe_closedHandle :: IO a |
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| ioe_EOF :: IO a |
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| ioe_notReadable :: IO a |
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| ioe_notWritable :: IO a |
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| stdin :: Handle |
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| stdout :: Handle |
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| stderr :: Handle |
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| data IOMode |
| Constructors | | ReadMode | | | WriteMode | | | AppendMode | | | ReadWriteMode | |
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| data IOModeEx |
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| openFile :: FilePath -> IOMode -> IO Handle |
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| openFileEx :: FilePath -> IOModeEx -> IO Handle |
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| openFd :: FD -> Maybe FDType -> FilePath -> IOMode -> Bool -> Bool -> IO Handle |
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| hFileSize :: Handle -> IO Integer |
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| hIsEOF :: Handle -> IO Bool |
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| isEOF :: IO Bool |
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| hLookAhead :: Handle -> IO Char |
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| hSetBuffering :: Handle -> BufferMode -> IO () |
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| hSetBinaryMode :: Handle -> Bool -> IO () |
| On Windows, reading a file in text mode (which is the default) will
translate CRLF to LF, and writing will translate LF to CRLF. This
is usually what you want with text files. With binary files this is
undesirable; also, as usual under Microsoft operating systems, text
mode treats control-Z as EOF. Setting binary mode using
hSetBinaryMode turns off all special treatment of end-of-line and
end-of-file characters.
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| hFlush :: Handle -> IO () |
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| hClose :: Handle -> IO () |
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| hClose_help :: Handle__ -> IO Handle__ |
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| data HandlePosn |
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| hGetPosn :: Handle -> IO HandlePosn |
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| hSetPosn :: HandlePosn -> IO () |
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| data SeekMode |
| Constructors | | AbsoluteSeek | | | RelativeSeek | | | SeekFromEnd | |
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| hSeek :: Handle -> SeekMode -> Integer -> IO () |
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| hTell :: Handle -> IO Integer |
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| hIsOpen :: Handle -> IO Bool |
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| hIsClosed :: Handle -> IO Bool |
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| hIsReadable :: Handle -> IO Bool |
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| hIsWritable :: Handle -> IO Bool |
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| hGetBuffering :: Handle -> IO BufferMode |
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| hIsSeekable :: Handle -> IO Bool |
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| hSetEcho :: Handle -> Bool -> IO () |
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| hGetEcho :: Handle -> IO Bool |
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| hIsTerminalDevice :: Handle -> IO Bool |
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| Produced by Haddock version 0.3 |
