X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=System%2FPosix%2FInternals.hs;h=2a6126cdc0fc4965e8a7d1032f446cac0cabff31;hb=41e8fba828acbae1751628af50849f5352b27873;hp=85e716c3d89b6ed5875bc037d8acdddc171caaf5;hpb=689dd035ca641ac6f8dea8337364c65b4b4aacd7;p=ghc-base.git diff --git a/System/Posix/Internals.hs b/System/Posix/Internals.hs index 85e716c..2a6126c 100644 --- a/System/Posix/Internals.hs +++ b/System/Posix/Internals.hs @@ -1,4 +1,4 @@ -{-# OPTIONS_GHC -XNoImplicitPrelude #-} +{-# LANGUAGE CPP, NoImplicitPrelude, ForeignFunctionInterface #-} {-# OPTIONS_GHC -fno-warn-unused-binds #-} {-# OPTIONS_HADDOCK hide #-} @@ -37,7 +37,7 @@ import System.Posix.Types import Foreign import Foreign.C -import Data.Bits +-- import Data.Bits import Data.Maybe #if !defined(HTYPE_TCFLAG_T) @@ -90,7 +90,7 @@ type FD = CInt fdFileSize :: FD -> IO Integer fdFileSize fd = allocaBytes sizeof_stat $ \ p_stat -> do - throwErrnoIfMinus1Retry "fileSize" $ + throwErrnoIfMinus1Retry_ "fileSize" $ c_fstat fd p_stat c_mode <- st_mode p_stat :: IO CMode if not (s_isreg c_mode) @@ -103,7 +103,7 @@ fileType :: FilePath -> IO IODeviceType fileType file = allocaBytes sizeof_stat $ \ p_stat -> do withFilePath file $ \p_file -> do - throwErrnoIfMinus1Retry "fileType" $ + throwErrnoIfMinus1Retry_ "fileType" $ c_stat p_file p_stat statGetType p_stat @@ -112,7 +112,7 @@ fileType file = fdStat :: FD -> IO (IODeviceType, CDev, CIno) fdStat fd = allocaBytes sizeof_stat $ \ p_stat -> do - throwErrnoIfMinus1Retry "fdType" $ + throwErrnoIfMinus1Retry_ "fdType" $ c_fstat fd p_stat ty <- statGetType p_stat dev <- st_dev p_stat @@ -219,7 +219,7 @@ setCooked fd cooked = tcSetAttr :: FD -> (Ptr CTermios -> IO a) -> IO a tcSetAttr fd fun = do allocaBytes sizeof_termios $ \p_tios -> do - throwErrnoIfMinus1Retry "tcSetAttr" + throwErrnoIfMinus1Retry_ "tcSetAttr" (c_tcgetattr fd p_tios) #ifdef __GLASGOW_HASKELL__ @@ -240,13 +240,17 @@ tcSetAttr fd fun = do -- transparent. allocaBytes sizeof_sigset_t $ \ p_sigset -> do allocaBytes sizeof_sigset_t $ \ p_old_sigset -> do - c_sigemptyset p_sigset - c_sigaddset p_sigset const_sigttou - c_sigprocmask const_sig_block p_sigset p_old_sigset + throwErrnoIfMinus1_ "sigemptyset" $ + c_sigemptyset p_sigset + throwErrnoIfMinus1_ "sigaddset" $ + c_sigaddset p_sigset const_sigttou + throwErrnoIfMinus1_ "sigprocmask" $ + c_sigprocmask const_sig_block p_sigset p_old_sigset r <- fun p_tios -- do the business throwErrnoIfMinus1Retry_ "tcSetAttr" $ c_tcsetattr fd const_tcsanow p_tios - c_sigprocmask const_sig_setmask p_old_sigset nullPtr + throwErrnoIfMinus1_ "sigprocmask" $ + c_sigprocmask const_sig_setmask p_old_sigset nullPtr return r #ifdef __GLASGOW_HASKELL__ @@ -307,6 +311,9 @@ foreign import ccall unsafe "consUtils.h set_console_echo__" foreign import ccall unsafe "consUtils.h get_console_echo__" get_console_echo :: CInt -> IO CInt +foreign import ccall unsafe "consUtils.h is_console__" + is_console :: CInt -> IO CInt + #endif -- --------------------------------------------------------------------------- @@ -317,13 +324,13 @@ setNonBlockingFD :: FD -> Bool -> IO () setNonBlockingFD fd set = do flags <- throwErrnoIfMinus1Retry "setNonBlockingFD" (c_fcntl_read fd const_f_getfl) - -- An error when setting O_NONBLOCK isn't fatal: on some systems - -- there are certain file handles on which this will fail (eg. /dev/null - -- on FreeBSD) so we throw away the return code from fcntl_write. let flags' | set = flags .|. o_NONBLOCK | otherwise = flags .&. complement o_NONBLOCK unless (flags == flags') $ do - c_fcntl_write fd const_f_setfl (fromIntegral flags') + -- An error when setting O_NONBLOCK isn't fatal: on some systems + -- there are certain file handles on which this will fail (eg. /dev/null + -- on FreeBSD) so we throw away the return code from fcntl_write. + _ <- c_fcntl_write fd const_f_setfl (fromIntegral flags') return () #else @@ -338,9 +345,8 @@ setNonBlockingFD _ _ = return () #if !defined(mingw32_HOST_OS) && !defined(__MINGW32__) setCloseOnExec :: FD -> IO () setCloseOnExec fd = do - throwErrnoIfMinus1 "setCloseOnExec" $ + throwErrnoIfMinus1_ "setCloseOnExec" $ c_fcntl_write fd const_f_setfd const_fd_cloexec - return () #endif -- ----------------------------------------------------------------------------- @@ -387,16 +393,16 @@ foreign import ccall unsafe "HsBase.h __hscore_lseek" foreign import ccall unsafe "HsBase.h __hscore_lstat" lstat :: CFilePath -> Ptr CStat -> IO CInt -foreign import ccall unsafe "__hscore_open" +foreign import ccall unsafe "HsBase.h __hscore_open" c_open :: CFilePath -> CInt -> CMode -> IO CInt foreign import ccall unsafe "HsBase.h read" c_read :: CInt -> Ptr Word8 -> CSize -> IO CSsize -foreign import ccall safe "read" +foreign import ccall safe "HsBase.h read" c_safe_read :: CInt -> Ptr Word8 -> CSize -> IO CSsize -foreign import ccall unsafe "__hscore_stat" +foreign import ccall unsafe "HsBase.h __hscore_stat" c_stat :: CFilePath -> Ptr CStat -> IO CInt foreign import ccall unsafe "HsBase.h umask" @@ -405,7 +411,7 @@ foreign import ccall unsafe "HsBase.h umask" foreign import ccall unsafe "HsBase.h write" c_write :: CInt -> Ptr Word8 -> CSize -> IO CSsize -foreign import ccall safe "write" +foreign import ccall safe "HsBase.h write" c_safe_write :: CInt -> Ptr Word8 -> CSize -> IO CSsize foreign import ccall unsafe "HsBase.h __hscore_ftruncate" @@ -454,7 +460,7 @@ foreign import ccall unsafe "HsBase.h tcgetattr" foreign import ccall unsafe "HsBase.h tcsetattr" c_tcsetattr :: CInt -> CInt -> Ptr CTermios -> IO CInt -foreign import ccall unsafe "HsBase.h utime" +foreign import ccall unsafe "HsBase.h __hscore_utime" c_utime :: CString -> Ptr CUtimbuf -> IO CInt foreign import ccall unsafe "HsBase.h waitpid"