File: CHANGES

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This file describes changes in the IO package.

4.7.0 (2019-07-17)
  - Add IO_CallWithTimeout
  - Remove CheckForUpdates, it was hopelessly broken
  - Make IO_stat/IO_lstat/IO_fstat compatible with large files
  - Various janitorial changes

4.6.0 (2019-03-15)
  - Change minimal required GAP version to 4.10
  - Fix for profiling when IO_fork is called
  - Add License field to PackageInfo.g
  - Fix various (harmless) compiler warnings
  - Various internal changes to better work with newer (and future) GAP versions
    (avoid including src/iostream.h, avoid C_NEW_STRING, modernize build system)

4.5.4 (2018-09-19)
  - Add IO_getcwd to query the current working directory
  - Fix ChangeDirectoryCurrent when used with relative paths
    (it used to set GAPInfo.DirectoryCurrent to an invalid value)

4.5.3 (2018-09-18)
  - Minimal GAP version is 4.9 (it already effectively was in 4.5.2, but PackageInfo.g
    had not been updated)

4.5.2 (2018-08-21)
  - Add exit status to IO_WaitPid (contributed by Chris Jefferson, PR #64)
  - Make IO usable in the HPC-GAP threads (contributed by Mohamed Barakat, PR #65)
  - Fix a failure in the HTTP part of the test suite
  - Replace the deprecated `Elements` in examples by `AsSet`
  - Clarify IO_WaitPid documentation
  - Various minor changes to the build system and test suite

4.5.1 (2018-01-10)
  - Fix a bug which could break usage IO_mkstemp or IO_mkdtemp in
    a loaded GAP workspace
  - Improve integration with GAP 4.9 build system

4.5.0 (2017-11-20)
  - Compatible with GAP 4.9
  - Add support for (un)pickling ranges and character tables
    (contributed by Thomas Breuer)
  - Add automatic call to InstallSIGCHLDHandler() when IO_Fork is used
    directly or indirectly. As a consequence, code directly calling
    IO_fork must now always call IO_WaitPid or the new IO_IgnorePid
  - Fix error handling in ChangeDirectoryCurrent
  - Fix link to issue tracker in the manual
  - Fix building the documentation on case sensitive file systems
  - Remove undocumented function IO_MasterPointerNumber

4.4.6 (2016-03-08)
  - Remove support for (un)pickling SuPeRfail
  - Add wrappers for mkstemp and mkdtemp
  - Some maintenance changes

4.4.5 (2016-01-07)
  - Move website to http://gap-packages.github.io/io/
  - Change IO_PipeThroughWithError to also return the exit status of
    the child process
  - Improve test suite a little bit
  - GAP 4.8 also provides ChangeDirectoryCurrent, so we only
    define it if it does not already exist
  - Don't wait for child processes to exit on GAP exit

4.4.4 (2014-11-19)
  - Fix a bug in the IO_Write code, which for example could cause
    IO_WriteLine to fail for certain long string

4.4.3 (2014-11-08)
  - Tweak the build system to avoid potential issues when the source
    code gets repackages by third parties (e.g. by the GAP team, when
    creating their big package archives)

4.4.2 (2014-10-02)
  - Recompress tst/test.txt with 'gzip --no-name'
  - Fix package name in manual title ("io" -> "IO")

4.4.1 (2014-09-25)
  - Fix the release archive (it extracted to a directory starting with
    "IO" instead of "io")

4.4 (2014-09-24)
  - Fix problem with IO_Pickling some very large objects
  - Add pickle support for transformations and partial
    permutations
  - Try to ensure files are flushed on exit, even if they are
    not explicitly closed.
  - Ensure file buffers are flushed before GAP closes, to
    avoid data loss when files are not closed before exiting.
  - Add = and < methods for IsFile objects
  - Update Max Neunhoeffer's contact data
  - Use AutoDoc to generate title page of the manual from PackageInfo.g
  - Add Max Horn as a maintainer

4.3.1 (2014-04-04)
  - Previous release had an invalid release date in
    PackageInfo.g (2014-04-31 instead of 2014-03-31).
  - Merge HISTORY and CHANGES files.

4.3 (2014-03-31)
  - Update and tweak the package build system
  - Move package repository and website to GitHub
  - Pickling/Unpickling of Floats

4.2 (2012-05-28)
  - Fix behaviour of IO_select to try again if the system call was
    interrupted. This fixes an infinite loop bug in
    ParTakeFirstResultByFork.
  - Change "source" to "." in AC_FIND_GAP to provide support for BSD.
  - Add script "configure_like_gap"
  - Compile documentation against 4.5.4
  - Fix installations instructions, remove static linking from README.

4.1 (2012-01-30)
  - Make it compile on Windows.

4.0 (2012-01-27)
  - Use new build setup using automake/autoconf/libtool
  - Move repository to git@git.gap-system.org/io
  - Updated the documentation of IO_select

3.3 (2011-03-23)
  - Fixed a bug to compile on latest cygwin without warning.
  - Added IOHub functionality and documented it.
  - Hashserver example.
  - Cleanup autoconf configuration.

3.2 (2011-02-02)
  - Remove the global function f which was accidentally put in there
    in 3.1.
  - Update cnf files for clang and to compile on GAP 4.4 and 4.5
  - Update cnf files to autoconf 2.65
  - Add functions gethostname and getsockname.
  - Change license to GPL 3

3.1 (2010-07-23)
  - Fix documentation of /dev/random and /dev/urandom
  - Background jobs
  - Parallel patterns: ParMapReduce, ParTakeFirstResult, ParDo

3.0 (2009-04-08)
  - Added ignoring of SIGPIPE for architectures where standard
    behaviour is to terminate the process.
  - Completely new configure process with our own autoconf scripts
  - IO_gettimeofday new
  - IO_gmtime and IO_localtime new
  - Check for IO_getpid and IO_getppid and IO_kill
  - Load dynamic module earlier (in init.g at the beginning)
  - Release revision 342 as 3.0: 8.4.2009

2.3 (2007-10-03)
  - Require GAP >= 4.4.9 in PackageInfo.g
  - Change addresses to St Andrews.
  - Add understanding of chunked transfer encoding.
  - Make IO compile on FreeBSD.
  - Added IO_getpid, IO_getppid, IO_kill.
  - Change license to GPL V2 or later.
  - Released revision 328 as 2.3: 3.10.2007

2.2 (2007-04-02)
  - Fixed a serious bug with the generic object pickler.
  - Released version 296 as 2.2: 2.4.2007


2.1 (2007-02-26)
  - Fixed bug with IO_stat, that time stamps are usually >= 2^28.
  - Add framework for other packages to install picklers and unpicklers
    even if they are loaded before the IO package.
  - Pickling/Unpickling of functions and operations (methods still a problem)
  - Leave out last argument of IO_GenericObjectUnpickler because it
    was never needed, return either IO_Error or unpickled object. This
    changes the semantics!
  - Pickling/Unpickling of WeakPointerObjects
  - Pickling/Unpickling of permutation groups (including Size and base of
    StabChain)
  - Pickling/Unpickling of matrix groups (only generators and Size)
  - Pickling/Unpickling of finite fields
  - Set Host component of HTTP request header by default of the name
    of the server argument in SingleHTTPRequest.
  - Alexander Konovalov's CheckForUpdates function.
  - Released revision 289 as 2.1: 26.2.2007

2.0 (2006-12-12)
  - See to SIGCHLD signal handler in Popen, Popen2, and Popen3
  - WaitPid in PipeThrough*
  - Loop around IO_select calls to ignore EINTR error
  - Sort out __stack_chk_fail_local gcc 4.1 problem
  - case insensitivity in header field names in HTTP protocol
  - fix bug that crashed GAP when starting another process or terminating
    GAP after calling Popen*
  - Added http protocol test.
  - Add tst/platform.g to have a check of "standard things"
  - include more headers with #include
  - take care of PIPE_BUF variable (might not exist on platform!)
  - Improved installation instructions in the manual and the README file.
  - Add proper preface to the manual
  - Fix documentation of Popen*
  - Clean up code for Popen, create IO_ForkExecWithFDs
  - IO_StartPipeline
  - IO_StringFilterFile, IO_FileFilterString
  - paths to executables do PATH lookups using IO_FindExecutable
  - IO_FilteredFile to create a File object which filteres through a pipeline.
  - Let IO_Close automatically call IO_WaitPid under certain circumstances.
  - Released revision 238 as 2.0: 12.12.2006

1.6 (2006-11-16)
  - New binding IO_fcntl with corresponding constants in IO
    (this is necessary for switching a file descriptor to O_NONBLOCK)
  - In IO_WriteNonBlocking only try to send PIPE_BUF bytes instead
    of full buffer to avoid blocking (is this the solution?)
  - Functionality to pipe a string through an external command
    using I/O multiplexing
  - New client side HTTP protocol implementation
  - Use chapters in documentation
  - New functions IO_PipeThrough and IO_PipeThroughWithError to pipe
    a string through a process.
  - Released version 1.6: 16.11.2006

1.5 (??)
  - Big changes in the buffered I/O functionality to allow for non-blocking
    I/O with buffers. Documented all. This changed the interface to buffered
    I/O considerable!
  - Test code for buffered I/O.
  - Test code for pickling/unpickling.
  - Some small bug fixes of bugs found during development of test code.

1.4 (??)
  - moved real random sources from the orb package here
    adjust them to new library code
  - implement picklers/unpicklers for random sources

1.3 (2006-09-01)
  - hint to load a package if there is no handler for magic during unpickling
  - follow Frank's suggestion to allow more than one package with a
    C-part to be linked to a statically compiled GAP, document this
  - release subversion revision 155 as Version 1.3

1.2 (??)
  - ?

1.1 (??)
  - ?

1.0 (??)
  - Initial release