Changelog for unix package

2.8.0.0 August 2022

• Use ByteString for GroupEntry/UserEntry

• Fix semTrywait on darwin

• Fix vanishing environment variables in System.Posix.Env.ByteString.putEnv/System.Posix.Env.ByteString.getEnv

• Add missing setEnvironment and clearEnv to System.Posix.Env.ByteString

• Add support for filepath-1.4.100.0 with PosixString variants

• Expose DirStream, CDir, CDirent and DirStreamOffset (internal API)

• Add fdRead/fdWrite with ByteString payload and deprecate String based fdRead

• Add clocksPerSec

• Support wasm32-wasi

• Implement BaudRate as an Int newtype and allow matching via extensible PatternSynonyms

• Added readDirStreamMaybe

• Warn when functions are used on unsupported platforms

• Fix the error handling of posix_fallocate

• Export FileStatus constructor

• Various documentation and error message improvements

• Add openDirStreamFd, openFileAt and createFileAt

• Add accessors for st_blocks and st_blksize

• Deal with FreeBSD getpwnam_r(3), ... thread safety. On FreeBSD these are not in fact safe for overlapped execution with a sequence of getpwent(3) or getgrent(3) calls when multiple "green" threads share the same underlying OS thread. The *ent(3) calls now run in bound threads or else locks are used to avoid overlapped execution.

• Make passwd/group FFI functions "safe", these are not low-latency APIs.

• Drop support for non-thread-safe getpwnam(3) and getpwuid(3). All supported platforms have getpwnam_r(3) and getpwuid_r(3). This was already the case for the getgr(nam|gid) calls.

• Added terminal output flags to System.Posix.Terminal.Common.TerminalMode

  IXANY, ONLCR, OCRNL, ONOCR, ONLRET, OFDEL, OFILL, NLDLY(NL0,NL1),
  CRDLY(CR0,CR1,CR2,CR2), TABDLY(TAB0,TAB1,TAB2,TAB3) BSDLY(BS0,BS1),
  VTDLY(VT0,VT1), FFDLY(FF0,FF1)
  

• Add support for O_NOFOLLOW, O_CLOEXEC, O_DIRECTORY and O_SYNC (#6, #57)

• Refactor API of openFd removing Maybe FileMode argument, which now must be passed as part of OpenFileFlags (e.g. defaultFileFlags { creat = Just mode }) (#58)

• Remove deprecated execvpe(3) legacy-emulation CPP macro

• Generalise return type of exitImmediately from ExitCode -> IO () to ∀a. ExitCode -> IO a (#130)

• Add Read, Show, Eq, and Ord typeclass instances to OpenFileFlags and OpenMode. (#75, #141)

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