diff options
| author | Andreas Klebinger <klebinger.andreas@gmx.at> | 2020-04-09 18:17:29 +0200 |
|---|---|---|
| committer | Ben Gamari <ben@smart-cactus.org> | 2020-07-15 16:41:02 -0400 |
| commit | e2c6dac783d6cb15217a3be196abeba6c6105588 (patch) | |
| tree | 5736b3f2db16cddd0237cf6f002ab62c7414968e /libraries | |
| parent | be6af7324bcd918c61172f6814b8a70a6cfdd58e (diff) | |
| download | haskell-e2c6dac783d6cb15217a3be196abeba6c6105588.tar.gz | |
winio: Mark FD instances as unsupported under WINIO.
Diffstat (limited to 'libraries')
| -rw-r--r-- | libraries/base/GHC/IO/FD.hs | 56 |
1 files changed, 32 insertions, 24 deletions
diff --git a/libraries/base/GHC/IO/FD.hs b/libraries/base/GHC/IO/FD.hs index 837c8b9858..2cb71b35dc 100644 --- a/libraries/base/GHC/IO/FD.hs +++ b/libraries/base/GHC/IO/FD.hs @@ -6,7 +6,6 @@ {-# OPTIONS_GHC -Wno-identities #-} -- Whether there are identities depends on the platform {-# OPTIONS_HADDOCK not-home #-} - ----------------------------------------------------------------------------- -- | -- Module : GHC.IO.FD @@ -47,6 +46,7 @@ import GHC.IO.Exception #if defined(mingw32_HOST_OS) import GHC.Windows import Data.Bool +import GHC.IO.SubSystem ((<!>)) #endif import Foreign @@ -102,29 +102,37 @@ fdIsSocket fd = fdIsSocket_ fd /= 0 instance Show FD where show fd = show (fdFD fd) +{-# INLINE ifSupported #-} +ifSupported :: String -> a -> a +#if defined(mingw32_HOST_OS) +ifSupported s a = a <!> (error $ "FD:" ++ s ++ " not supported") +#else +ifSupported _ = id +#endif + -- | @since 4.1.0.0 instance GHC.IO.Device.RawIO FD where - read = fdRead - readNonBlocking = fdReadNonBlocking - write = fdWrite - writeNonBlocking = fdWriteNonBlocking + read = ifSupported "fdRead" fdRead + readNonBlocking = ifSupported "fdReadNonBlocking" fdReadNonBlocking + write = ifSupported "fdWrite" fdWrite + writeNonBlocking = ifSupported "fdWriteNonBlocking" fdWriteNonBlocking -- | @since 4.1.0.0 instance GHC.IO.Device.IODevice FD where - ready = ready - close = close - isTerminal = isTerminal - isSeekable = isSeekable - seek = seek - tell = tell - getSize = getSize - setSize = setSize - setEcho = setEcho - getEcho = getEcho - setRaw = setRaw - devType = devType - dup = dup - dup2 = dup2 + ready = ifSupported "ready" ready + close = ifSupported "close" close + isTerminal = ifSupported "isTerm" isTerminal + isSeekable = ifSupported "isSeek" isSeekable + seek = ifSupported "seek" seek + tell = ifSupported "tell" tell + getSize = ifSupported "getSize" getSize + setSize = ifSupported "setSize" setSize + setEcho = ifSupported "setEcho" setEcho + getEcho = ifSupported "getEcho" getEcho + setRaw = ifSupported "setRaw" setRaw + devType = ifSupported "devType" devType + dup = ifSupported "dup" dup + dup2 = ifSupported "dup2" dup2 -- We used to use System.Posix.Internals.dEFAULT_BUFFER_SIZE, which is -- taken from the value of BUFSIZ on the current platform. This value @@ -135,11 +143,11 @@ dEFAULT_FD_BUFFER_SIZE = 8192 -- | @since 4.1.0.0 instance BufferedIO FD where - newBuffer _dev state = newByteBuffer dEFAULT_FD_BUFFER_SIZE state - fillReadBuffer fd buf = readBuf' fd buf - fillReadBuffer0 fd buf = readBufNonBlocking fd buf - flushWriteBuffer fd buf = writeBuf' fd buf - flushWriteBuffer0 fd buf = writeBufNonBlocking fd buf + newBuffer _dev state = ifSupported "newBuf" $ newByteBuffer dEFAULT_FD_BUFFER_SIZE state + fillReadBuffer fd buf = ifSupported "readBuf" $ readBuf' fd buf + fillReadBuffer0 fd buf = ifSupported "readBufNonBlock" $ readBufNonBlocking fd buf + flushWriteBuffer fd buf = ifSupported "writeBuf" $ writeBuf' fd buf + flushWriteBuffer0 fd buf = ifSupported "writeBufNonBlock" $ writeBufNonBlocking fd buf readBuf' :: FD -> Buffer Word8 -> IO (Int, Buffer Word8) readBuf' fd buf = do |