System.Win32.FileMapping
| Copyright | (c) Esa Ilari Vuokko 2006 |
|---|---|
| License | BSD-style (see the file LICENSE) |
| Maintainer | Esa Ilari Vuokko <[email protected]> |
| Stability | provisional |
| Portability | portable |
| Safe Haskell | Trustworthy |
| Language | Haskell2010 |
Description
A collection of FFI declarations for interfacing with Win32 mapped files.
mapFile :: FilePath -> IO (ForeignPtr a, Int)
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 ByteString
As mapFile, but returns ByteString
data MappedObject
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 = DWORD
sEC_COMMIT :: ProtectSectionFlags
sEC_IMAGE :: ProtectSectionFlags
sEC_NOCACHE :: ProtectSectionFlags
sEC_RESERVE :: ProtectSectionFlags
type FileMapAccess = DWORD
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 ())
© The University of Glasgow and others
Licensed under a BSD-style license (see top of the page).
https://downloads.haskell.org/~ghc/8.10.2/docs/html/libraries/Win32-2.6.1.0/System-Win32-FileMapping.html