foreign import ccall unsafe "__hscore_PrelHandle_write"
write_off :: CInt -> Ptr CChar -> Int -> CInt -> IO CInt
-#else
-readRawBuffer :: String -> FD -> Bool -> RawBuffer -> Int -> CInt -> IO CInt
-readRawBuffer loc fd is_stream buf off len = do
- (l, rc) <- asyncReadBA fd (if is_stream then 1 else 0) (fromIntegral len) off buf
- if l == (-1)
- then
- ioError (errnoToIOError loc (Errno (fromIntegral rc)) Nothing Nothing)
- else return (fromIntegral l)
+#else /* mingw32_TARGET_OS.... */
-readRawBufferNoBlock :: String -> FD -> Bool -> RawBuffer -> Int -> CInt -> IO CInt
-readRawBufferNoBlock loc fd is_stream buf off len = do
- (l, rc) <- asyncReadBA fd (if is_stream then 1 else 0) (fromIntegral len) off buf
- if l == (-1)
- then
- ioError (errnoToIOError loc (Errno (fromIntegral rc)) Nothing Nothing)
- else return (fromIntegral l)
+readRawBuffer :: String -> FD -> Bool -> RawBuffer -> Int -> CInt -> IO CInt
+readRawBuffer loc fd is_stream buf off len
+ | threaded = blockingReadRawBuffer loc fd is_stream buf off len
+ | otherwise = asyncReadRawBuffer loc fd is_stream buf off len
readRawBufferPtr :: String -> FD -> Bool -> Ptr CChar -> Int -> CInt -> IO CInt
-readRawBufferPtr loc fd is_stream buf off len = do
- (l, rc) <- asyncRead fd (if is_stream then 1 else 0) (fromIntegral len) (buf `plusPtr` off)
- if l == (-1)
- then
- ioError (errnoToIOError loc (Errno (fromIntegral rc)) Nothing Nothing)
- else return (fromIntegral l)
+readRawBufferPtr loc fd is_stream buf off len
+ | threaded = blockingReadRawBufferPtr loc fd is_stream buf off len
+ | otherwise = asyncReadRawBufferPtr loc fd is_stream buf off len
writeRawBuffer :: String -> FD -> Bool -> RawBuffer -> Int -> CInt -> IO CInt
-writeRawBuffer loc fd is_stream buf off len = do
- (l, rc) <- asyncWriteBA fd (if is_stream then 1 else 0) (fromIntegral len) off buf
- if l == (-1)
- then
- ioError (errnoToIOError loc (Errno (fromIntegral rc)) Nothing Nothing)
- else return (fromIntegral l)
+writeRawBuffer loc fd is_stream buf off len
+ | threaded = blockingWriteRawBuffer loc fd is_stream buf off len
+ | otherwise = asyncWriteRawBuffer loc fd is_stream buf off len
writeRawBufferPtr :: String -> FD -> Bool -> Ptr CChar -> Int -> CInt -> IO CInt
-writeRawBufferPtr loc fd is_stream buf off len = do
- (l, rc) <- asyncWrite fd (if is_stream then 1 else 0) (fromIntegral len) (buf `plusPtr` off)
- if l == (-1)
- then
- ioError (errnoToIOError loc (Errno (fromIntegral rc)) Nothing Nothing)
- else return (fromIntegral l)
+writeRawBufferPtr loc fd is_stream buf off len
+ | threaded = blockingWriteRawBufferPtr loc fd is_stream buf off len
+ | otherwise = asyncWriteRawBufferPtr loc fd is_stream buf off len
+
+-- ToDo: we don't have a non-blocking primitve read on Win32
+readRawBufferNoBlock :: String -> FD -> Bool -> RawBuffer -> Int -> CInt -> IO CInt
+readRawBufferNoBlock = readRawBufferNoBlock
+
+-- Async versions of the read/write primitives, for the non-threaded RTS
+
+asyncReadRawBuffer loc fd is_stream buf off len = do
+ (l, rc) <- asyncReadBA fd (if is_stream then 1 else 0)
+ (fromIntegral len) off buf
+ if l == (-1)
+ then
+ ioError (errnoToIOError loc (Errno (fromIntegral rc)) Nothing Nothing)
+ else return (fromIntegral l)
+
+asyncReadRawBufferPtr loc fd is_stream buf off len = do
+ (l, rc) <- asyncRead fd (if is_stream then 1 else 0)
+ (fromIntegral len) (buf `plusPtr` off)
+ if l == (-1)
+ then
+ ioError (errnoToIOError loc (Errno (fromIntegral rc)) Nothing Nothing)
+ else return (fromIntegral l)
+
+asyncWriteRawBuffer loc fd is_stream buf off len = do
+ (l, rc) <- asyncWriteBA fd (if is_stream then 1 else 0)
+ (fromIntegral len) off buf
+ if l == (-1)
+ then
+ ioError (errnoToIOError loc (Errno (fromIntegral rc)) Nothing Nothing)
+ else return (fromIntegral l)
+
+asyncWriteRawBufferPtr loc fd is_stream buf off len = do
+ (l, rc) <- asyncWrite fd (if is_stream then 1 else 0)
+ (fromIntegral len) (buf `plusPtr` off)
+ if l == (-1)
+ then
+ ioError (errnoToIOError loc (Errno (fromIntegral rc)) Nothing Nothing)
+ else return (fromIntegral l)
+
+-- Blocking versions of the read/write primitives, for the threaded RTS
+
+blockingReadRawBuffer loc fd True buf off len =
+ throwErrnoIfMinus1Retry loc $
+ recv_rawBuffer fd buf off len
+blockingReadRawBuffer loc fd False buf off len =
+ throwErrnoIfMinus1Retry loc $
+ read_rawBuffer fd buf off len
+
+blockingReadRawBufferPtr loc fd True buf off len =
+ throwErrnoIfMinus1Retry loc $
+ recv_off fd buf off len
+blockingReadRawBufferPtr loc fd False buf off len =
+ throwErrnoIfMinus1Retry loc $
+ read_off fd buf off len
+
+blockingWriteRawBuffer loc fd True buf off len =
+ throwErrnoIfMinus1Retry loc $
+ send_rawBuffer (fromIntegral fd) buf off len
+blockingWriteRawBuffer loc fd False buf off len =
+ throwErrnoIfMinus1Retry loc $
+ write_rawBuffer (fromIntegral fd) buf off len
+
+blockingWriteRawBufferPtr loc fd True buf off len =
+ throwErrnoIfMinus1Retry loc $
+ send_off (fromIntegral fd) buf off len
+blockingWriteRawBufferPtr loc fd False buf off len =
+ throwErrnoIfMinus1Retry loc $
+ write_off (fromIntegral fd) buf off len
+
+-- NOTE: "safe" versions of the read/write calls for use by the threaded RTS.
+-- These calls may block, but that's ok.
+
+foreign import ccall safe "__hscore_PrelHandle_read"
+ read_rawBuffer :: FD -> RawBuffer -> Int -> CInt -> IO CInt
+
+foreign import ccall safe "__hscore_PrelHandle_read"
+ read_off :: FD -> Ptr CChar -> Int -> CInt -> IO CInt
+
+foreign import ccall safe "__hscore_PrelHandle_write"
+ write_rawBuffer :: CInt -> RawBuffer -> Int -> CInt -> IO CInt
+
+foreign import ccall safe "__hscore_PrelHandle_write"
+ write_off :: CInt -> Ptr CChar -> Int -> CInt -> IO CInt
+
+foreign import ccall safe "__hscore_PrelHandle_recv"
+ recv_rawBuffer :: FD -> RawBuffer -> Int -> CInt -> IO CInt
+
+foreign import ccall safe "__hscore_PrelHandle_recv"
+ recv_off :: FD -> Ptr CChar -> Int -> CInt -> IO CInt
+
+foreign import ccall safe "__hscore_PrelHandle_send"
+ send_rawBuffer :: CInt -> RawBuffer -> Int -> CInt -> IO CInt
+
+foreign import ccall safe "__hscore_PrelHandle_send"
+ send_off :: CInt -> Ptr CChar -> Int -> CInt -> IO CInt
+
+foreign import ccall "rtsSupportsBoundThreads" threaded :: Bool
#endif
-- ---------------------------------------------------------------------------
throwErrnoIfMinus1Retry "openFile"
(c_open f (fromIntegral oflags) 0o666)
- openFd fd Nothing filepath mode binary truncate
+ openFd fd Nothing False filepath mode binary truncate
`catchException` \e -> do c_close (fromIntegral fd); throw e
-- NB. don't forget to close the FD if openFd fails, otherwise
-- this FD leaks.
-- ---------------------------------------------------------------------------
-- openFd
-openFd :: FD -> Maybe FDType -> FilePath -> IOMode -> Bool -> Bool -> IO Handle
-openFd fd mb_fd_type filepath mode binary truncate = do
+openFd :: FD -> Maybe FDType -> Bool -> FilePath -> IOMode -> Bool -> Bool -> IO Handle
+openFd fd mb_fd_type is_socket filepath mode binary truncate = do
-- turn on non-blocking mode
setNonBlockingFD fd
case mb_fd_type of
Just x -> return x
Nothing -> fdType fd
- let is_stream = fd_type == Stream
+
case fd_type of
Directory ->
ioException (IOError Nothing InappropriateType "openFile"
"is a directory" Nothing)
Stream
- | ReadWriteHandle <- ha_type -> mkDuplexHandle fd is_stream filepath binary
- | otherwise -> mkFileHandle fd is_stream filepath ha_type binary
+ | ReadWriteHandle <- ha_type -> mkDuplexHandle fd is_socket filepath binary
+ | otherwise -> mkFileHandle fd is_socket filepath ha_type binary
-- regular files need to be locked
RegularFile -> do
-- truncate the file if necessary
when truncate (fileTruncate filepath)
- mkFileHandle fd is_stream filepath ha_type binary
+ mkFileHandle fd is_socket filepath ha_type binary
fdToHandle :: FD -> IO Handle
fdToHandle fd = do
mode <- fdGetMode fd
let fd_str = "<file descriptor: " ++ show fd ++ ">"
- openFd fd Nothing fd_str mode True{-bin mode-} False{-no truncate-}
+ openFd fd Nothing False{-XXX!-} fd_str mode True{-bin mode-} False{-no truncate-}
foreign import ccall unsafe "lockFile"
lockFile :: CInt -> CInt -> CInt -> IO CInt
projects / ghc-base.git / blobdiff