This package gives you access to the set of operating system services standardised by POSIX.1-2008 (or the IEEE Portable Operating System Interface for Computing Environments - IEEE Std. 1003.1).

The package is not supported under Windows.

Changes

Changelog for unix package

2.7.2.2 May 2017

  • Bundled with GHC 8.2.1

  • Improve Autoconf detection of telldir/seekdir and define _POSIX_VDISABLE if missing for Android (#91,#90)

  • Fix error message of createSymbolicLink (#84)

2.7.2.1 Nov 2016

  • Bundled with GHC 8.0.2

  • Don’t use readdir_r if its deprecated.

  • Add argument documentation for Env modules

2.7.2.0 Apr 2016

  • Bundled with GHC 8.0.1

  • Don’t assume non-POSIX WCOREDUMP(x) macro exists

  • Don’t assume existence of termios(3) constants beyond B38400

  • Don’t assume existence of ctermid(3)/tcdrain(3)

  • Change drainOutput’s tcdrain(3) into a safe FFI call

  • Turn build error into compile warnings for exotic struct stat configurations (GHC #8859)

  • Improve detection of fdatasync(2) (GHC #11137)

  • Drop support for Hugs

  • Drop support for Cygwin (and Windows in general)

2.7.1.0 Dec 2014

  • Bundled with GHC 7.10.1

  • Add support for base-4.8.0.0

  • Tighten SafeHaskell bounds for GHC 7.10+

  • Add haddock comments on RTLD_NEXT and RTLD_DEFAULT

  • Deprecate function haveRtldLocal

  • Fix getGroupEntryForID/getGroupEntryForName on Solaris. Solaris uses CPP macros for required getgrgid_r and getgrnam_r functions definition so the fix is to change from C ABI calling convention to C API calling convention

  • Fix potential type-mismatch in telldir/seekdir FFI imports

  • Use CAPI FFI import for truncate to make sure the LFS-version is used.

  • executeFile: Fix ENOTDIR error for entries with non-directory components in PATH (and instead skip over non-directory PATH-elements)

  • New functions in System.Posix.Unistd:

    • fileSynchronise (aka fsync(2)), and
    • fileSynchroniseDataOnly (aka fdatasync(2))
  • New module System.Posix.Fcntl providing

    • fileAdvise (aka posix_fadvise(2)), and
    • fileAllocate (aka posix_fallocate(2))
  • Fix SIGINFO and SIGWINCH definitions

2.7.0.1 Mar 2014

  • Bundled with GHC 7.8.1

  • Handle EROFS and ETXTBSY as (non-exceptional) permission denied in fileAccess

  • Fix getFileStatus to retry stat(2) when it returns EAGAIN (this can happen on Solaris)

2.7.0.0 Nov 2013

  • New forkProcessWithUnmask function in the style of forkIOWithUnmask

  • Change forkProcess to inherit the exception masking state of its caller

  • Add new Bool flag to ProcessStatus(Terminated) constructor indicating whether a core dump occured

  • New functions in System.Posix.Files{,.ByteString} for operating on high resolution file timestamps:

    setFdTimesHiRes :: Fd -> POSIXTime -> POSIXTime -> IO ()
    setFileTimesHiRes :: FilePath -> POSIXTime -> POSIXTime -> IO ()
    setSymbolicLinkTimesHiRes :: FilePath -> POSIXTime -> POSIXTime -> IO ()
    touchFd :: Fd -> IO ()
    touchSymbolicLink :: FilePath -> IO ()
    
  • Export SignalInfo(..) and SignalSpecificInfo(..) as well as the two Handler constructors CatchInfo and CatchInfoOnce from System.Posix.Signals

  • Don’t export seekDirStream and tellDirStream if the underlying seekdir(3)/telldir(3) system calls are not available (as on Android)

  • Fix library detection of shm* on openSUSE (#8350)

  • Minor documentation fixes/updates

  • Update package to cabal-version >= 1.10 format

2.6.0.1 Jan 2013

  • Bundled with GHC 7.6.2
  • Fix memory corruption issue in putEnv
  • Use pthread_kill(3) instead of raise(2) on OS X too

2.6.0.0 Sep 2012

  • Bundled with GHC 7.6.1
  • New functions mkdtemp and mkstemps in System.Posix.Temp
  • New functions setEnvironment and cleanEnv
  • New functions accessTimeHiRes, modificationTimeHiRes, and statusChangeTimeHiRes for accessing high resolution timestamps
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