| Portability | portable |
|---|---|
| Stability | provisional |
| Maintainer | Esa Ilari Vuokko <ei@vuokko.info> |
System.Win32.FileMapping
Description
A collection of FFI declarations for interfacing with Win32 mapped files.
- mapFile :: FilePath -> IO (ForeignPtr a, Int)
- mapFileBs :: FilePath -> IO ByteString
- data MappedObject = MappedObject HANDLE HANDLE FileMapAccess
- withMappedFile :: FilePath -> Bool -> Maybe Bool -> (Integer -> MappedObject -> IO a) -> IO a
- withMappedArea :: MappedObject -> Integer -> Int -> (Ptr a -> IO b) -> IO b
- type ProtectSectionFlags = DWORD
- sEC_COMMIT :: ProtectSectionFlags
- sEC_IMAGE :: ProtectSectionFlags
- sEC_NOCACHE :: ProtectSectionFlags
- type FileMapAccess = DWORD
- sEC_RESERVE :: ProtectSectionFlags
- fILE_MAP_ALL_ACCESS :: FileMapAccess
- fILE_MAP_COPY :: FileMapAccess
- fILE_MAP_READ :: FileMapAccess
- fILE_MAP_WRITE :: FileMapAccess
- createFileMapping :: Maybe HANDLE -> ProtectFlags -> DDWORD -> Maybe String -> IO HANDLE
- openFileMapping :: FileMapAccess -> BOOL -> Maybe String -> IO HANDLE
- mapViewOfFileEx :: HANDLE -> FileMapAccess -> DDWORD -> SIZE_T -> Ptr a -> IO (Ptr b)
- mapViewOfFile :: HANDLE -> FileMapAccess -> DDWORD -> SIZE_T -> IO (Ptr a)
- unmapViewOfFile :: Ptr a -> IO ()
- c_OpenFileMapping :: DWORD -> BOOL -> LPCTSTR -> IO HANDLE
- c_CreateFileMapping :: HANDLE -> Ptr () -> DWORD -> DWORD -> DWORD -> LPCTSTR -> IO HANDLE
- c_MapViewOfFileEx :: HANDLE -> DWORD -> DWORD -> DWORD -> SIZE_T -> Ptr a -> IO (Ptr b)
- c_UnmapViewOfFile :: Ptr a -> IO BOOL
- c_UnmapViewOfFileFinaliser :: FunPtr (Ptr a -> IO ())
Documentation
mapFile :: FilePath -> IO (ForeignPtr a, Int)Source
Maps file fully and returns ForeignPtr and length of the mapped area. The mapped file is opened read-only and shared reading.
mapFileBs :: FilePath -> IO ByteStringSource
As mapFile, but returns ByteString
data MappedObject Source
Constructors
| MappedObject HANDLE HANDLE FileMapAccess |
Arguments
| :: FilePath | Path |
| -> Bool | Write? (False = read-only) |
| -> Maybe Bool | Sharing mode, no sharing, share read, share read+write |
| -> (Integer -> MappedObject -> IO a) | Action |
| -> IO a |
Opens an existing file and creates mapping object to it.
Arguments
| :: MappedObject | Mapped object, from withMappedFile |
| -> Integer | Position in file |
| -> Int | Size of mapped area |
| -> (Ptr a -> IO b) | Action |
| -> IO b |
Maps area into memory.
type ProtectSectionFlags = DWORDSource
type FileMapAccess = DWORDSource
createFileMapping :: Maybe HANDLE -> ProtectFlags -> DDWORD -> Maybe String -> IO HANDLESource
openFileMapping :: FileMapAccess -> BOOL -> Maybe String -> IO HANDLESource
mapViewOfFileEx :: HANDLE -> FileMapAccess -> DDWORD -> SIZE_T -> Ptr a -> IO (Ptr b)Source
mapViewOfFile :: HANDLE -> FileMapAccess -> DDWORD -> SIZE_T -> IO (Ptr a)Source
unmapViewOfFile :: Ptr a -> IO ()Source
c_UnmapViewOfFile :: Ptr a -> IO BOOLSource
c_UnmapViewOfFileFinaliser :: FunPtr (Ptr a -> IO ())Source