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Changelog for unix package

2.8.1.1 Mar 2023

  • Fix System.Posix.Env.ByteString.getEnvironment segfaulting on empty environment

2.8.1.0 Feb 2023

  • Fix build if HAVE_ALARM is undefined

  • Add missing autoconf checks for chown/fchdir/fchmod

  • Make TABX constructors and code conditional on underlying #defines

  • Bump bounds to accomodate base-4.18

  • Add semWaitInterruptible

  • semaphore: Teach semThreadWait to use semWait with threaded RTS

  • make the foreign imports of dlopen & dlclose safe

  • do not use capi for dlfcn.h stuff under wasm-wasi

  • Use capi for syscalls that break under musl's handling of 64-bit time_t

  • Replace last with unsnoc

  • Avoid Data.List.{head,tail}

  • Consistently use throwErrnoPathIf*

  • Fix WASI build

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