lukko
Version 0.1.1.2 revision 0 uploaded by phadej.
Package meta
- Synopsis
- File locking
- Description
This package provides access to platform dependent file locking APIs:
Open file descriptor locking on Linux (Lukko.OFD)
BSD-style
flock(2)locks on UNIX platforms (Lukko.FLock)Windows locking via LockFileEx (Lukko.Windows)
No-op locking, which throws exceptions (Lukko.NoOp)
Lukko module exports the best option for the target platform with uniform API.
There are alternative file locking packages:
GHC.IO.Handle.Lock in
base >= 4.10is good enough for most use cases. However, uses only Handles so these locks cannot be used for intra-process locking. (You should use e.g. MVar in addition).filelock doesn't support OFD locking.
Lukko means lock in Finnish.
Submodules Lukko.OFD, Lukko.Windows etc are available based on following conditions.
if os(windows) cpp-options: -DHAS_WINDOWS_LOCK elif (os(linux) && flag(ofd-locking)) cpp-options: -DHAS_OFD_LOCKING cpp-options: -DHAS_FLOCK elif !(os(solaris) || os(aix)) cpp-options: -DHAS_FLOCKLukko.FLock is available on not (Windows or Solaris or AIX). Lukko.NoOp is always available.
- Author
- n/a
- Bug reports
- n/a
- Category
- System, Concurrency
- Copyright
- n/a
- Homepage
- n/a
- Maintainer
- Oleg Grenrus <oleg.grenrus@iki.fi>
- Package URL
- n/a
- Stability
- n/a