Revision history for IO-Async

0.25    CHANGES:
         * Accept 'stream'/'dgram'/'raw' as symbolic shortcuts for socket
           types in connect/listen operations - avoids 'use Socket'
         * Accept IO::Handle-derived objects in ChildManager setup keys as
           well as raw GLOB refs

         * Various changes to test scripts to hopefully improve portability or
           reliability during smoke tests

0.24    ADDITIONS:
         * Timer subclasses - Countdown and Periodic
         * Idleness event watching via low-level 'watch_io/unwatch_io' methods
           and higher-level 'later' method
         * Added the missing 'unwatch_child' method
         * Shareable acceptance testing suite for IO::Async::Loop subclasses
           for better testing in subclass implementations

         * More future-proof API version checking for subclasses - requires
           subclasses to declare their version. 
           ### pre-0.24 Loop subclasses are no longer compatible. ###
         * Entirely remove the need to $loop->enable_childmanager by calling
           waitpid() in 'watch_child'.

0.23    CHANGES:
         * Rearranged IO::Async::Listener to be a constructable Notifier
         * Allow Signal, Timer and Listener to act as base classes as well as
           standalone with callbacks
         * Renamed IO::Async::Loop::IO_Poll to ::Poll; created transparent
           backward-compatibility wrapper

0.22    CHANGES:
         * Added example
         * More documentation on IO::Async::Notifier subclass-override methods
         * Documented that IO::Async::MergePoint is just an Async::MergePoint
         * Various small updates to keep CPANTS happy

         * Don't test Async::MergePoint locally as it's now a separate dist,
           and the tests here were reporting false negatives.

0.21    CHANGES:
         * Added "use warnings" to all modules
         * Created Notifier->configure method to allow changing properties of
           a Notifier or subclass after construction
         * New 'examples' dir with some small example scripts

         * More robust timing tests to avoid some spurious test failures due
           to busy testing servers or other non-issues

0.20    CHANGES:
         * Major reworking of underlying Loop implementation:
            + Unified low-level IO, timer and signal watches as callbacks
            + Split IO handle parts of Notifier into new IO::Async::Handle
            + Created Timer and Signal subclasses of Notifier

           These changes will require a compatible upgrade to the underlying
           Loop implementation.

         * Hide SignalProxy and TimeQueue from CPAN's indexer, as they are
           internal-only details that don't need exposing there.
         * Loop magic constructor now warns if a specifically-requested class
           is not available
         * Allow multiple attachment of signals via Loop->attach_signal or new
           Signal objects

0.19    CHANGES:
         * Allow control of Sequencer's pipelining
         * Documentation fixes
         * Allow Loop->run_child to take a 'setup' array
         * Added 'setuid', 'setgid' and 'setgroups' child setup operations
         * Support 'on_notifier' in Loop->listen

         * carp before return in Stream->write so it actually prints
         * Ensure Streams still work after being closed and reopened by
         * If IO::Socket->new() fails, try again with generic ->socket
           (makes IPv6 work on platforms without IO::Socket::INET6)

0.18    CHANGES:
         * Allow Sequencer to be a base class as well as using constructor
         * Use signal names from rather than relying on
           Covers more signals that way

         * Gracefully handle accept() returning EAGAIN
         * Fixed handling of IO::Socket->getsockopt( SOL_SOCKET, SO_ERROR )

0.17    CHANGES:
         * Added Stream->close_when_empty and ->close_now. Added docs
         * Added OS abstractions of socketpair() and pipe()
         * Many documentation changes and updates

         * Properly handle stream read/write errors; close immediately rather
           than deferring until empty.
         * Various CPAN testers somketest bug fixes
         * Fixed

0.16    ADDITIONS:
         * Loop->requeue_timer()
         * Magic constructor in IO::Async::Loop which tries to find the best
         * 'chdir' and 'nice' ChildManager operations

         * Make sure that top-level objects are refcount-clean by using
           Test::Refcount, and Scalar::Util::weaken()

         * Keep perl 5.6.1 happy by not passing LocalPort => 0 when
           constructing IO::Socket::INETs
         * Pass the Type option to IO::Socket::INET constructor in test

0.15    REMOVALS:
         * IO::Async::Set subclasses and IO::Async::Buffer have now been
           entirely removed.

         * Support handle-less IO::Async::Sequencer, like ::Notifier
         * Set SO_REUSEADDR on listening sockets by default
         * Allow Loop->listen() on a plain filehandle containing a socket
         * No longer any need to explcitly call Loop->enable_childmanager

         * IO::Async::Loop->_adjust_timeout actually works properly
         * Notifier->close() only runs on_closed callback if it actually 
           closed - allows for neater cross-connected Notifiers
         * Made Notifier->want_{read,write}ready more efficient
         * Notifier->close() on a child notifier works
         * Loop->listen() should take the first successful address, rather
           than trying them all

0.14    REMOVALS:
         * IO::Async::Set subclasses and IO::Async::Buffer are now completely
           deprecated. Any attempt to use them will fail immediately.

         * 'keep' ChildManager operation
         * IO::Async::Test::wait_for_stream()
         * Loop->listen()
         * IO::Async::Sequencer class

         * Support dynamic swapping of temporary 'on_read' handlers in Stream
         * Now requires Socket::GetAddrInfo >= 0.08
         * Further shortcuts in ChildManager setup keys - IO references and
           simple string operation names
         * Support handle-less IO::Async::Notifiers that have IO handles added
           to them later
         * Allow 'setup' key to Loop->detach_code()
         * Various documentation updates

         * Allow the same filehandle to be 'dup'ed more than once in

0.13    CHANGES:
         * Flush all awaiting data from Stream when it becomes writeready
         * Supply a real IO::Async::Test module to allow testing in 3rd party
         * Various documentation fixes

         * Don't rely on STDOUT being writable during test scripts

0.12    CHANGES:
         * Allow Notifiers that are write-only.
         * Added ChildManager->open and ->run; with ->open_child and 
           ->run_child on the containing Loop.
         * Moved IO::Async::Loop::Glib out to its own CPAN dist, to
           simplify Build.PL and testing scripts

         * Make sure to "use IO::Socket" in IO::Async::Connector
         * Pass 'socktype' argument to ->connect during testing

         * Renamed IO::Async::Set::* to IO::Async::Loop::* - provided
           backward-compatibility wrappers around old names. 
           IO::Async::Set::GMainLoop has become IO::Async::Lib::Glib
         * Renamed IO::Async::Buffer to IO::Async::Stream - provided backward-
           compatibility wrapper around old name.
         * Loop->get_childmanager() and ->get_sigproxy() no longer allowed

         * Extended ->loop_once() and ->loop() feature out to all
           IO::Async::Loop classes
         * Added IO::Async::Resolver and IO::Async::Connector, plus Loop
         * Allow write-only IO::Async::Notifiers that have no read handle or
           readiness callback.

         * Renamed events and methods in IO::Async::Notifier to better fit the
           naming scheme of normal Perl handles. Backward-compatibility hooks
           are currently provided, but will be removed in a later release. Any
           code using the old names should be updated

         * Allow DetachedCode to have multiple back-end worker processes.
         * Control if a back-end worker exits when the code "die"s
         * Added 'close()' method on Notifiers/Buffers. Sensible behaviour on
           buffers with queued data to send
         * Reset %SIG hash in ChildManager->detach_child()

         * Clean up temporary directory during testing
         * Shut down DetachedCode workers properly on object deref
         * Better handling of borderline timing failures in t/11set-*.t
         * Close old handles before dup2()ing new ones when detaching code
         * Various other minor test script improvements

0.09    CHANGES:
         * Added TimeQueue object and integration with IO::Async::Set and
         * Added MergePoint object
         * Added 'on_closed' callback support to IO::Async::Notifier

         * Don't depend on system locale when checking string value of $!
         * Fixed test scripts to more closely approximate real code behaviour
           in the presence of poll() vs. deferred signal delivery

0.08    CHANGES:
         * Added ChildManager->detach_child() method
         * Added DetachedCode object

         * Better tests for presence of Glib to improve test false failures
         * More lenient times in test script 11set-IO-Poll-timing to allow for
           variances at test time
         * Avoid bugs in post_select()/post_poll() caused by some notifier
           callbacks removing other notifiers from the set

0.07    BUGFIXES:
         * Avoid race condition in t/30childmanager.t - wait for child process
           to actually exit
         * Avoid race condition in IO::Async::ChildManager->spawn() by waiting
           for SIGCHLD+pipe close, rather than SIGCHLD+pipe data

0.06    CHANGES:
         * Allow 'env' setup key to ChildManager->spawn() to change the
           child's %ENV
         * Updated the way some of the ->spawn() tests are conducted. There
           seems to be massive failures reported on cpantesters against 0.05.
           These changes won't fix the bugs, but should assist in reporting
           and tracking them down.

         * Don't rely on existence of /bin/true - test for /usr/bin/true as
           well, fall back on "$^X -e 1"
         * Avoid kernel race condition in t/32childmanager-spawn-setup.t by
           proper use of select() when testing.

0.05    CHANGES:
         * Added ChildManager object
         * Added singleton storage in IO::Async::Set to store a SignalProxy or
           ChildManager conveniently

         * Workaround for a bug in IO::Poll version 0.05

0.04    CHANGES:
         * Added dynamic signal attach / detach methods to SignalProxy
         * Buffer now has on_read_error / on_write_error callbacks for
           handling IO errors on underlying sysread()/syswrite() calls

0.03    CHANGES:
         * No longer build_requires 'Glib' - print a warning if it's not
           installed but carry on anyway.
         * IO_Poll->loop_once() now returns the result from the poll() call
         * Added concept of nested child notifiers within Notifier object

         * Fix to test scripts that call IO_Poll's loop_once() with a timeout
           of zero. This can cause a kernel race condition, so supply some
           small non-zero value instead.

         * Event methods/callback functions now called "on_*" to distinguish
         * Callback functions now pass $self as first argument to simplify
           called code

         * Improved POD in and

         * - return 1 from callbacks so that glib doesn't remove
           our IO sources
         * - make sure re-asserting want_writeready actually adds
           the IO source again

0.01    First version, released on an unsuspecting world.