| Copyright | (c) The University of Glasgow 2014 |
|---|---|
| License | BSD-style (see the file LICENSE) |
| Maintainer | libraries@haskell.org |
| Stability | provisional |
| Portability | non-portable (requires POSIX) |
| Safe Haskell | Safe |
| Language | Haskell2010 |
System.Posix.Fcntl
Contents
Description
POSIX file control support
Since: 2.7.1.0
Synopsis
- data Advice
- fileAdvise :: Fd -> FileOffset -> FileOffset -> Advice -> IO ()
- fileAllocate :: Fd -> FileOffset -> FileOffset -> IO ()
File allocation
Advice parameter for fileAdvise operation.
For more details, see documentation of posix_fadvise(2).
Since: 2.7.1.0
fileAdvise :: Fd -> FileOffset -> FileOffset -> Advice -> IO () Source #
Performs posix_fadvise(2) operation on file-descriptor.
If platform does not provide posix_fadvise(2) fileAdvise
becomes a no-op.
(use #if HAVE_POSIX_FADVISE CPP guard to detect availability)
Since: 2.7.1.0
fileAllocate :: Fd -> FileOffset -> FileOffset -> IO () Source #
Performs posix_fallocate(2) operation on file-descriptor.
Throws IOError ("unsupported operation") if platform does not
provide posix_fallocate(2).
(use #if HAVE_POSIX_FALLOCATE CPP guard to detect availability).
Since: 2.7.1.0