[ViewVC] Annotation of: cvs/EV/Changes

Revision history for Perl extension EV

Changes marked with (libev) are changes in libev, and have more
documentation in the libev Changes file.

4.00
        - fix a bug where inotify usage would parse the same event
          multiple times, causing various forms of breakage.
        - greatly reduce stack usage for inotify (8kb to <0.5kb).
        - renamed loop_verify to verify, loop_count to iteration and
          loop_depth to depth.
        - expose ev_depth and ev_verify via the XS API.
        - (libev) ev_embed_stop did not correctly stop the watcher.
        - (libev) disable poll backend on AIX.
        - (libev) rename EV_TIMEOUT to EV_TIMER.
        - (libev) add section on accept() problems to the manpage.
        - (libev) no child watchers on win32.
        - make code more aliasing compliant, in case perl is ever
          translated to C.
        - document the EV::CHECK runtime unavailability.
        - ported to minix 3.1.7.

3.9  Thu Dec 31 07:59:59 CET 2009
        - disable t/07* under automatic testing.
        - increase t/09* timeouts as netbsd has *horribly* broken
          select/kevent that *usually* sleep >>0.6s instead of 0.3.
        - add constants EV::FLAG_NOSIGFD, EV::FLAG_NOINOTIFY and
          EV::BACKEND_ALL.
        - (libev) signalfd is no longer used by default.
        - (libev) backport inotify code to C89.
        - (libev) inotify file descriptors could leak into child processes.
        - (libev) ev_stat watchers could keep an errornous extra ref on the loop.
        - (libev) take advantage of inotify_init1, if available.
        - (libev) the signal handling pipe wasn't always initialised under windows.
        - changed minimum glibc requirement from glibc 2.9 to 2.7, for signalfd.
        - (libev) only replace ev_stat.prev when we detect an actual difference.

3.8  Sun Aug  9 15:30:10 CEST 2009
        - implement $loop->signal/signal_ns.
        - (libev) incompatible change: do not necessarily reset signal
          handler to SIG_DFL when a sighandler is stopped.
        - (libev) ev_default_destroy did not properly free or zero some
          members, potentially causing crashes and memory corruption on
          repated ev_default_destroy/ev_default_loop calls.
        - (libev) take advantage of signalfd on GNU/Linux systems.
        - (libev) document that the signal mask might be in an unspecified
          state when using libev's signal handling.
        - (libev) take advantage of some GNU/Linux calls to set
          cloexec/nonblock on fd creation, to avoid race conditions.
        - implement internal glue code to interface more efficiently
          with AnyEvent.

3.7  Fri Jul 17 16:49:16 CEST 2009
        - add EV::loop_verify and EV::loop_depth.
        - use output filehandle for i/o watchers waiting
          for EV_WRITE, otherwise input filehandle.
        - use common schmorp.h header.
        - add EV::Timer->remaining.
        - allow for subclassing of EV::Loop (see the exciting
          EV::Loop::Async module for an example).
        - added EV::invoke_pending and EV::pending_count.

        - (libev) ev_unloop and ev_loop wrongly used a global variable to
          exit loops, instead of using a per-loop variable.
        - (libev) the ev_set_io_collect_interval interpretation has changed.
        - add new functionality: EV::invoke_pending, EV::pending_count.
        - add $timer->remaining.
        - add EV::loop_depth.
        - (libev) calling unloop in fork/prepare watchers will no longer poll
          for new events.
        - (libev) use GetSystemTimeAsFileTime instead of _timeb on windows,
          for slightly higher accuracy.
        - (libev) actually 0-initialise struct sigaction when installing
          signals.

3.6  Tue Apr 28 02:50:37 CEST 2009
        - keepalive(0) could decrease the refcount of the loop
          permanently.
        - add ev_suspend/ev_resume, also make ev_now_update
          accessible via the XS API.
        - most EV::<eventtype> constants were missing and have been
          added :/.
        - add EV::VERSION_MAJOR/VERSION_MINOR constants.
        - (libev) multiple timers becoming ready within an event loop
          iteration will be invoked in the "correct" order now.
        - (libev) do not leave the event loop early just because we have
          no active watchers, fixing a problem when embedding a kqueue
          loop that has active kernel events but no registered watchers
          (reported by blacksand blacksand).
        - (libev) correctly zero the idx values for arrays, so destroying
          and reinitialising the default loop actually works (patch by
          Malek Hadj-Ali).
        - (libev) new EV::CUSTOM revents flag for use by applications.
        - (libev) add documentation section about priorites.
        - (libev) add a glossary to the dcoumentation.
        - (libev) extend the ev_fork description slightly.
        - (libev) optimize a jump out of call_pending.
        - t/03_keepalive could fail when there was no actual error.

3.53 Sun Feb 15 02:38:20 CET 2009
        - (libev) on win32, the event loop creation could randomly fail
          due to an initialised variable having the wrong value.
        - (libev) probe for CLOCK_REALTIME support at runtime as well and
          fall back to gettimeofday if there is an error, to support older
          operating systems with newer header files/libraries.
        - prefer gettimeofday over clock_gettime by default.

3.52 Wed Jan  7 21:46:14 CET 2009
        - (libev) fix some issues in the select backend when in fd_set mode.
        - (libev) due to a thinko, instead of disabling everything but
          select on the borked OS X platform, everything but select was
          allowed (reported by Emanuele Giaquinta).
        - (libev) actually verify that local and remote port are matching in
          libev's socketpair emulation, which makes denial-of-service
          attacks harder (but not impossible - it's windows). Make sure
          it even works under vista, which thinks that getpeer/sockname
          should return fantasy port numbers.

3.51 Wed Dec 24 23:01:59 CET 2008
        - do not cache the arguments passed to callbacks if the refcount
          indicates that the callback has stolen them.
        - (libev) try to avoid librt on GNU/Linux.
        - (libev) check port_getn return value dfferently, might potentially
          avoid problems.
        - (libev) fix a bug with stat watchers possibly causing freezes.
        - (libev) work around OS X 10.5 breaking poll, now select is the
          only viable choice left on that pile of garbage.
        - play tester whore: disable some tests that typically fail only
          on cpan tester machines.

3.49 Wed Nov 19 11:26:53 CET 2008
        - fix typos in manpage (Alex Efros).
        - increase timing even further, for the ever-overloaded cpan-tester
          machines, and to the detriment of everybody else who wants a fast
          make test.
        - possible 5.6 compatibility.
        - (libev) use inotify even on buggy kernels, but don't rely on it.
        - (libev) use inotify only as an added hint on network filesystems.

3.48 Thu Oct 30 09:09:48 CET 2008
        - (libev) use a generation counter to detect spurious epoll events
          and recreate the kernel in such a case (sorry, it's slow, but
          I didn't design epoll...).
        - (libev) optimise away an EPOLL_CTL_ADD/MOD combo in the epoll
          backend in some cases.
        - (libev) use memset to initialise most arrays now and do away
          with the init functions.
        - speed up event callback invocation further (~15%), by
          not creating the object reference each time.
        - EV::sleep was documented, but not implemented. fun.

3.45 Tue Oct 21 22:20:39 CEST 2008
        - (libev) disable inotify usage on linux <2.6.25 (kernel bug).
        - (libev) ev_embed will now automatically follow fork.
        - (libev) ev_once will now pass both io and timeout events to
          the callback when both happen concurrently, instead of giving
          one precedence.
        - install C library documentation as EV::libev manpage (sorry, oesi).
        - (libev) fix a minor performance bug in ev_stat handling.

3.44 Mon Sep 29 05:16:31 CEST 2008
        - (libev) add EV::now_update and $loop->now_update.

3.431 Sun Jul 13 00:19:02 CEST 2008
        - made the EV::embed callback optional again. reported by
          Vladimir Timofeev.

3.43 Tue Jul  8 20:56:31 CEST 2008
        - disabled warnings in EV.pm, the CHECK issue is now understood
          and harmless.

3.42 Mon May 26 07:36:46 CEST 2008
        - (libev) work around another bug in windows perls and
           windows itself: failed connects do NOT set read or write
           flags in select, but this version of libev will.

3.41 Thu May 22 01:39:40 CEST 2008
        - (libev) fix many heap-related bugs (timers, periodics).
        - (libev) improve timing stability of timers and periodics.
        - expose ev_loop_verify to perl code.
        - clarify documentation for periodic reschedule callbacks.
        - verify that the passed callback argument is indeed a code
          reference, for earlier error reporting and a nice calling
          speed increase (as well as saving memory).

3.4  Tue May 20 21:51:55 CEST 2008
        - (libev) work around both a windows bug and a bug in perl's
          select on windows when not waiting for any file descriptors.
        - bundle ev.pod into the tarball, just to increase its size
          (and for the poor internetless person).
          
3.33 Sun May 18 12:43:04 CEST 2008
        - (libev) use numerous enhancements such as a more
          cache-friendly 4-heap and heap index caching for timers.
        - remove undocumented ev_timer->at accessor.

3.31 Wed Apr 16 20:48:59 CEST 2008
        - (libev) post-last-minute fix for ev_poll.c problem.

3.3  Wed Apr 16 19:04:47 CEST 2008
        - (libev) linux eventfd support.
        - (libev) inline more with C99 compilers.
        - (libev) work around a number of bugs in valgrind.
        - (libev) work around broken realloc on openbsd and darwin.
        - added example to EV::MakeMaker manpage.
        - add async_pending method.

3.2  Wed Apr  2 17:08:16 CEST 2008
        - "ported" again to the Microsoft "C" language.
        - relax testsuite timing for the benefit of freebsd users once more.
        - fix EVAPI's ev_time and ev_sleep macros.
        - (libev) fix select backend on 64 bit architetcures.
        - (libev) ev_loop flags are now local to each invocation.

3.1  Sat Mar  8 11:41:14 CET 2008
        - add ev_sync_* and ev_fork_* to EVAPI.h.
        - provide EV::Embed->sweep method.
        - new watcher type: async (not very useful in perl).

3.0  Mon Jan 28 13:23:11 CET 2008
        - upgrade to libev-3.0.
        - change child handler to incorporate tracing flag.

2.01 Mon Dec 31 01:59:19 CET 2007
        - found a minor problem in the testsuite that is only
          caught by new Test::Harness versions (reported by Andreas
          König).

2.0  Sat Dec 22 17:47:03 CET 2007
        - no longer force kqueue when enabled, enable it
          on more systems (as its now by default not used on most).
        - expose fork watchers.
        - switch to libev's MULTIPLICITY API.
        - use a slightly different include file name strategy.
        - get rid of (unused) libevent emulation.
        - 5% watcher management speedup due to callback optimisation
          when inline closures are used, 5% slowdown due to multiplicity.
        - very minimal support for dynamic event loops and embed watchers.
        - fix name of prepare start/stop methods.
        - create and export EV::sleep and EV::set_*_collect_interval.
        - fix typos in manpage (Alex Efros).

1.86 Tue Dec 18 02:36:57 CET 2007
        - add periodic->at methods.

1.85 Fri Dec 14 20:32:40 CET 2007
        - further optimise epoll backend by adding a heuristic that
          avoids EPOLL_CTL_DEL calls if possible.
        - EV::signal->start was not async-signal safe.
        - optimise start/stop when the fd hasn't changed.

1.8  Tue Dec 11 22:17:46 CET 2007
        - API version 3:0.
        - reduced fudge factor to zero for select, poll, epoll
          and kqueue: your system better be posix-compliant
          even in its extensions :->
        - improve long-term numerical stability in periodic watchers
          by introducing a separate offset value instead of reusing at.
        - recalculate real/monotonic clocks before blocking fully
          to avoid blocking for longer than necessary.
        - fix bugs in the heap functions. this rarely lead to illegal
          heap orderings.

1.72 Sat Dec  8 15:31:26 CET 2007
        - add dummy loop arguments to some EVAPI functions
          so that clients can use EV_A and EV_DEFAULT.
        - expose ev_clear_pending.
        - renamed trigger to invoke.

1.71 Fri Dec  7 19:10:24 CET 2007
        - changed/implemented idle watcher priority.
        - allow out-of-range priorities to be set.
        - fix ->priority to actually work on started watchers.
        - improved testsuite.

1.6  Wed Dec  5 15:06:20 CET 2007
        - add a missing SPAGAIN.
        - ripped out EV::DNS, use EV::ADNS for a better backend.
        - make ev_time callable from EVAPI.h.
        - add EV::loop_count.
        - some space optimisations.

1.5  Wed Nov 28 20:19:09 CET 2007
        - add inotify backend.
        - make testsuite even less sensible to timing issues,
          add more stat tests.
        - add ->attr, ->prev, ->stat calls to stat watcher.

1.4  Tue Nov 27 17:35:27 CET 2007
        - work around a linux 2.4 kernel bug in child handlers.
        - implement stat watcher interface.
        - implement fork watcher interface.
        - io->set did not keep the fh alive.
        - actively check signal numbers/names to be valid.
        - cleanups, minor fixes, new bugs.
        - work around windows bugs in the testsuite.

1.3  Sun Nov 25 10:46:57 CET 2007
        - stopping idle/check/prepare watchers could cause data corruption.
        - implement and document EV::once.
        - improved documentation, verify that netbsd indeed has the only
          working kqueue implementation (out of darwin, freebsd, netbsd and
          openbsd). Praise them!
        - fix the data method so it might work.
        - expose ev_ref/ev_unref to the C API.
        - expose ref/unref in form of the ->keepalive method to perl.
        - minor bugfixes and portability fixes.

1.2  Thu Nov 22 05:44:09 CET 2007
        - disable kqueue by default on !netbsd, as its broken on freebsd,
          darwin and openbsd and thus almost everywhere.
        - add some allowance in t/01_timer.t for the uneven monotonic
          vs. realtime clock tick on at least freebsd.
        - add -lsocket -lnsl on solaris in case the perl guy forgot to
          configure them.

1.1  Wed Nov 21 06:08:48 CET 2007
        - improved timer test to include periodics and
          withstand small timing variations.
        - many minor tweaks to libev.

1.0  Fri Nov 16 14:51:59 CET 2007
        - require AnyEvent update if AnyEvent is installed.
        - add solaris 10 port-based backend.
        - add child_ns and fix check_ns.
        - treat yes/no as enforcement, not as hint, when configuring,
          documentation update (reported by Andy Grundman).

0.9  Wed Nov 14 22:24:49 CET 2007
        - changed LIBEV_METHODS to LIBEV_FLAGS and the
          way this is used inside libev.
        - many, many bugfixes.
        - add unloop constants.
        - add timer test.
        - ev_loop will now terminate immediately when no watchers are active.

0.8  Mon Nov 12 02:28:46 CET 2007
        - fix "testsuite" again :().
        - fix check/idle/prepare/child watcher stop.
        - enourmously many fixes.
        - rewritten select backend (mostly for win32).
        - cache socket handles on win32.
        - provide considerably finer control over configuration.

0.7  Fri Nov  9 20:37:58 CET 2007
        - move AnyEvent adaptor into the AnyEvent module.
        - use private copy of evdns.[ch].
        - many minor fixes.

0.6  Thu Nov  8 18:23:43 CET 2007
        - (libev) better native win32 support.
        - fix idle watchers.
        - implement and document periodic reschedule callbacks.
        - do not run dns test on !linux platforms (actually to exclude win32).
        - fix (unused in EV :) poll backend.

0.51 Tue Nov  6 19:50:22 CET 2007
        - fix kqueue/poll compilation issue.
        - work around design issues in kqueue.
        - enable kqueue by default, seems to work.

0.5  Tue Nov  6 17:37:44 CET 2007
        - add signal and pid mutators.
        - add rstatus/rpid accessors.
        - updated libev (lower cost for clock monotonic).
        - support event priorities.
        - try to find SIG_SIZE on perls that don't have it (Slaven Rezic).
        - improved signal handling, fixed child watchers.
        - experimentally add kqueue backend, completely untested.
        - ported to cygwin and native win32.

0.1   Thu Nov  1 18:29:22 CET 2007
        - replaced libevent by libev (total rewrite).
        - many bugfixes w.r.t. libevent.
        - new watcher types: periodic, check, prepare, child, idle.
        - performance optimisations.
        - added interactive configuration.
        - added fork support.

0.03  Mon Oct 29 20:52:50 CET 2007
        - add timed_io convenience constructors.
        - improve documentation.
        - support signal names in addition to signal numbers.
        - support signal anyevent watchers.
        - vastly improved testsuite (its all relative :).
        - add EV::MakeMaker, beginning of C-level API.
        - force strings to byte form.

0.02  Sun Oct 28 07:40:21 CET 2007
        - call $EV::DIED in case a callback throws an exception.
        - add const char * to typemap for possible 5.6 compatibility.

0.01  Sat Oct 27 19:10:18 CEST 2007
        - initial release.

0.00  Fri Oct 26 11:12:57 CEST 2007
        - original version; cloned from JSON::XS

Revision:	1.193
Committed:	Thu Oct 21 02:46:59 2010 UTC (13 years, 6 months ago) by root
Branch:	MAIN
Changes since 1.192:	+1 -0 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.143	Revision history for Perl extension EV
2	root	1.1
3	root	1.185	Changes marked with (libev) are changes in libev, and have more
4			documentation in the libev Changes file.
5
6	root	1.188	4.00
7	root	1.187	- fix a bug where inotify usage would parse the same event
8			multiple times, causing various forms of breakage.
9			- greatly reduce stack usage for inotify (8kb to <0.5kb).
10	root	1.189	- renamed loop_verify to verify, loop_count to iteration and
11			loop_depth to depth.
12			- expose ev_depth and ev_verify via the XS API.
13	root	1.188	- (libev) ev_embed_stop did not correctly stop the watcher.
14			- (libev) disable poll backend on AIX.
15			- (libev) rename EV_TIMEOUT to EV_TIMER.
16			- (libev) add section on accept() problems to the manpage.
17	root	1.191	- (libev) no child watchers on win32.
18	root	1.190	- make code more aliasing compliant, in case perl is ever
19			translated to C.
20	root	1.193	- document the EV::CHECK runtime unavailability.
21	root	1.192	- ported to minix 3.1.7.
22	root	1.187
23	root	1.186	3.9 Thu Dec 31 07:59:59 CET 2009
24	root	1.182	- disable t/07* under automatic testing.
25	root	1.183	- increase t/09* timeouts as netbsd has horribly broken
26			select/kevent that usually sleep >>0.6s instead of 0.3.
27	root	1.184	- add constants EV::FLAG_NOSIGFD, EV::FLAG_NOINOTIFY and
28			EV::BACKEND_ALL.
29	root	1.185	- (libev) signalfd is no longer used by default.
30			- (libev) backport inotify code to C89.
31			- (libev) inotify file descriptors could leak into child processes.
32			- (libev) ev_stat watchers could keep an errornous extra ref on the loop.
33			- (libev) take advantage of inotify_init1, if available.
34			- (libev) the signal handling pipe wasn't always initialised under windows.
35			- changed minimum glibc requirement from glibc 2.9 to 2.7, for signalfd.
36			- (libev) only replace ev_stat.prev when we detect an actual difference.
37	root	1.182
38	root	1.181	3.8 Sun Aug 9 15:30:10 CEST 2009
39	root	1.180	- implement $loop->signal/signal_ns.
40	root	1.181	- (libev) incompatible change: do not necessarily reset signal
41			handler to SIG_DFL when a sighandler is stopped.
42			- (libev) ev_default_destroy did not properly free or zero some
43			members, potentially causing crashes and memory corruption on
44			repated ev_default_destroy/ev_default_loop calls.
45			- (libev) take advantage of signalfd on GNU/Linux systems.
46			- (libev) document that the signal mask might be in an unspecified
47			state when using libev's signal handling.
48			- (libev) take advantage of some GNU/Linux calls to set
49			cloexec/nonblock on fd creation, to avoid race conditions.
50			- implement internal glue code to interface more efficiently
51			with AnyEvent.
52	root	1.180
53	root	1.177	3.7 Fri Jul 17 16:49:16 CEST 2009
54	root	1.171	- add EV::loop_verify and EV::loop_depth.
55	root	1.172	- use output filehandle for i/o watchers waiting
56			for EV_WRITE, otherwise input filehandle.
57			- use common schmorp.h header.
58	root	1.176	- add EV::Timer->remaining.
59	root	1.175	- allow for subclassing of EV::Loop (see the exciting
60			EV::Loop::Async module for an example).
61			- added EV::invoke_pending and EV::pending_count.
62	root	1.171
63	root	1.177	- (libev) ev_unloop and ev_loop wrongly used a global variable to
64			exit loops, instead of using a per-loop variable.
65			- (libev) the ev_set_io_collect_interval interpretation has changed.
66			- add new functionality: EV::invoke_pending, EV::pending_count.
67			- add $timer->remaining.
68			- add EV::loop_depth.
69			- (libev) calling unloop in fork/prepare watchers will no longer poll
70			for new events.
71			- (libev) use GetSystemTimeAsFileTime instead of _timeb on windows,
72			for slightly higher accuracy.
73			- (libev) actually 0-initialise struct sigaction when installing
74			signals.
75
76	root	1.170	3.6 Tue Apr 28 02:50:37 CEST 2009
77	root	1.167	- keepalive(0) could decrease the refcount of the loop
78			permanently.
79	root	1.168	- add ev_suspend/ev_resume, also make ev_now_update
80			accessible via the XS API.
81	root	1.169	- most EV::<eventtype> constants were missing and have been
82			added :/.
83			- add EV::VERSION_MAJOR/VERSION_MINOR constants.
84			- (libev) multiple timers becoming ready within an event loop
85			iteration will be invoked in the "correct" order now.
86			- (libev) do not leave the event loop early just because we have
87			no active watchers, fixing a problem when embedding a kqueue
88			loop that has active kernel events but no registered watchers
89			(reported by blacksand blacksand).
90			- (libev) correctly zero the idx values for arrays, so destroying
91			and reinitialising the default loop actually works (patch by
92			Malek Hadj-Ali).
93			- (libev) new EV::CUSTOM revents flag for use by applications.
94			- (libev) add documentation section about priorites.
95			- (libev) add a glossary to the dcoumentation.
96			- (libev) extend the ev_fork description slightly.
97			- (libev) optimize a jump out of call_pending.
98			- t/03_keepalive could fail when there was no actual error.
99	root	1.167
100	root	1.166	3.53 Sun Feb 15 02:38:20 CET 2009
101			- (libev) on win32, the event loop creation could randomly fail
102			due to an initialised variable having the wrong value.
103	root	1.165	- (libev) probe for CLOCK_REALTIME support at runtime as well and
104			fall back to gettimeofday if there is an error, to support older
105			operating systems with newer header files/libraries.
106			- prefer gettimeofday over clock_gettime by default.
107
108	root	1.164	3.52 Wed Jan 7 21:46:14 CET 2009
109	root	1.163	- (libev) fix some issues in the select backend when in fd_set mode.
110			- (libev) due to a thinko, instead of disabling everything but
111			select on the borked OS X platform, everything but select was
112			allowed (reported by Emanuele Giaquinta).
113			- (libev) actually verify that local and remote port are matching in
114			libev's socketpair emulation, which makes denial-of-service
115			attacks harder (but not impossible - it's windows). Make sure
116			it even works under vista, which thinks that getpeer/sockname
117			should return fantasy port numbers.
118
119	root	1.162	3.51 Wed Dec 24 23:01:59 CET 2008
120	root	1.161	- do not cache the arguments passed to callbacks if the refcount
121			indicates that the callback has stolen them.
122	root	1.159	- (libev) try to avoid librt on GNU/Linux.
123	root	1.160	- (libev) check port_getn return value dfferently, might potentially
124			avoid problems.
125	root	1.162	- (libev) fix a bug with stat watchers possibly causing freezes.
126			- (libev) work around OS X 10.5 breaking poll, now select is the
127			only viable choice left on that pile of garbage.
128	root	1.161	- play tester whore: disable some tests that typically fail only
129			on cpan tester machines.
130	root	1.159
131	root	1.158	3.49 Wed Nov 19 11:26:53 CET 2008
132	root	1.155	- fix typos in manpage (Alex Efros).
133	root	1.156	- increase timing even further, for the ever-overloaded cpan-tester
134			machines, and to the detriment of everybody else who wants a fast
135			make test.
136	root	1.157	- possible 5.6 compatibility.
137	root	1.158	- (libev) use inotify even on buggy kernels, but don't rely on it.
138			- (libev) use inotify only as an added hint on network filesystems.
139	root	1.155
140	root	1.154	3.48 Thu Oct 30 09:09:48 CET 2008
141	root	1.152	- (libev) use a generation counter to detect spurious epoll events
142	root	1.151	and recreate the kernel in such a case (sorry, it's slow, but
143			I didn't design epoll...).
144	root	1.150	- (libev) optimise away an EPOLL_CTL_ADD/MOD combo in the epoll
145			backend in some cases.
146			- (libev) use memset to initialise most arrays now and do away
147			with the init functions.
148	root	1.152	- speed up event callback invocation further (~15%), by
149	root	1.151	not creating the object reference each time.
150	root	1.153	- EV::sleep was documented, but not implemented. fun.
151	root	1.150
152			3.45 Tue Oct 21 22:20:39 CEST 2008
153			- (libev) disable inotify usage on linux <2.6.25 (kernel bug).
154	root	1.146	- (libev) ev_embed will now automatically follow fork.
155			- (libev) ev_once will now pass both io and timeout events to
156			the callback when both happen concurrently, instead of giving
157			one precedence.
158	root	1.149	- install C library documentation as EV::libev manpage (sorry, oesi).
159	root	1.150	- (libev) fix a minor performance bug in ev_stat handling.
160	root	1.146
161	root	1.145	3.44 Mon Sep 29 05:16:31 CEST 2008
162	root	1.144	- (libev) add EV::now_update and $loop->now_update.
163
164	root	1.142	3.431 Sun Jul 13 00:19:02 CEST 2008
165			- made the EV::embed callback optional again. reported by
166			Vladimir Timofeev.
167
168	root	1.141	3.43 Tue Jul 8 20:56:31 CEST 2008
169	root	1.140	- disabled warnings in EV.pm, the CHECK issue is now understood
170			and harmless.
171
172	root	1.139	3.42 Mon May 26 07:36:46 CEST 2008
173	root	1.138	- (libev) work around another bug in windows perls and
174			windows itself: failed connects do NOT set read or write
175			flags in select, but this version of libev will.
176
177	root	1.136	3.41 Thu May 22 01:39:40 CEST 2008
178	root	1.135	- (libev) fix many heap-related bugs (timers, periodics).
179	root	1.134	- (libev) improve timing stability of timers and periodics.
180	root	1.137	- expose ev_loop_verify to perl code.
181	root	1.134	- clarify documentation for periodic reschedule callbacks.
182			- verify that the passed callback argument is indeed a code
183			reference, for earlier error reporting and a nice calling
184			speed increase (as well as saving memory).
185
186	root	1.133	3.4 Tue May 20 21:51:55 CEST 2008
187	root	1.132	- (libev) work around both a windows bug and a bug in perl's
188			select on windows when not waiting for any file descriptors.
189	root	1.131	- bundle ev.pod into the tarball, just to increase its size
190			(and for the poor internetless person).
191
192	root	1.130	3.33 Sun May 18 12:43:04 CEST 2008
193			- (libev) use numerous enhancements such as a more
194			cache-friendly 4-heap and heap index caching for timers.
195			- remove undocumented ev_timer->at accessor.
196
197	root	1.129	3.31 Wed Apr 16 20:48:59 CEST 2008
198			- (libev) post-last-minute fix for ev_poll.c problem.
199
200	root	1.128	3.3 Wed Apr 16 19:04:47 CEST 2008
201	root	1.125	- (libev) linux eventfd support.
202	root	1.128	- (libev) inline more with C99 compilers.
203			- (libev) work around a number of bugs in valgrind.
204			- (libev) work around broken realloc on openbsd and darwin.
205	root	1.126	- added example to EV::MakeMaker manpage.
206	root	1.127	- add async_pending method.
207	root	1.125
208	root	1.123	3.2 Wed Apr 2 17:08:16 CEST 2008
209	root	1.117	- "ported" again to the Microsoft "C" language.
210	root	1.124	- relax testsuite timing for the benefit of freebsd users once more.
211	root	1.121	- fix EVAPI's ev_time and ev_sleep macros.
212	root	1.120	- (libev) fix select backend on 64 bit architetcures.
213	root	1.122	- (libev) ev_loop flags are now local to each invocation.
214	root	1.117
215	root	1.116	3.1 Sat Mar 8 11:41:14 CET 2008
216	root	1.113	- add ev_sync_* and ev_fork_* to EVAPI.h.
217	root	1.115	- provide EV::Embed->sweep method.
218			- new watcher type: async (not very useful in perl).
219	root	1.113
220	root	1.112	3.0 Mon Jan 28 13:23:11 CET 2008
221			- upgrade to libev-3.0.
222	root	1.111	- change child handler to incorporate tracing flag.
223
224	root	1.110	2.01 Mon Dec 31 01:59:19 CET 2007
225			- found a minor problem in the testsuite that is only
226			caught by new Test::Harness versions (reported by Andreas
227			König).
228
229	root	1.107	2.0 Sat Dec 22 17:47:03 CET 2007
230	root	1.100	- no longer force kqueue when enabled, enable it
231			on more systems (as its now by default not used on most).
232	root	1.95	- expose fork watchers.
233			- switch to libev's MULTIPLICITY API.
234	root	1.96	- use a slightly different include file name strategy.
235			- get rid of (unused) libevent emulation.
236	root	1.97	- 5% watcher management speedup due to callback optimisation
237			when inline closures are used, 5% slowdown due to multiplicity.
238	root	1.98	- very minimal support for dynamic event loops and embed watchers.
239	root	1.103	- fix name of prepare start/stop methods.
240	root	1.105	- create and export EV::sleep and EV::set_*_collect_interval.
241	root	1.106	- fix typos in manpage (Alex Efros).
242	root	1.95
243	root	1.94	1.86 Tue Dec 18 02:36:57 CET 2007
244	root	1.93	- add periodic->at methods.
245	root	1.92
246	root	1.91	1.85 Fri Dec 14 20:32:40 CET 2007
247	root	1.90	- further optimise epoll backend by adding a heuristic that
248			avoids EPOLL_CTL_DEL calls if possible.
249	root	1.87	- EV::signal->start was not async-signal safe.
250	root	1.89	- optimise start/stop when the fd hasn't changed.
251	root	1.87
252	root	1.86	1.8 Tue Dec 11 22:17:46 CET 2007
253	root	1.83	- API version 3:0.
254	root	1.81	- reduced fudge factor to zero for select, poll, epoll
255			and kqueue: your system better be posix-compliant
256			even in its extensions :->
257	root	1.82	- improve long-term numerical stability in periodic watchers
258			by introducing a separate offset value instead of reusing at.
259	root	1.84	- recalculate real/monotonic clocks before blocking fully
260			to avoid blocking for longer than necessary.
261	root	1.85	- fix bugs in the heap functions. this rarely lead to illegal
262			heap orderings.
263	root	1.81
264	root	1.80	1.72 Sat Dec 8 15:31:26 CET 2007
265	root	1.77	- add dummy loop arguments to some EVAPI functions
266			so that clients can use EV_A and EV_DEFAULT.
267	root	1.78	- expose ev_clear_pending.
268	root	1.79	- renamed trigger to invoke.
269	root	1.77
270	root	1.76	1.71 Fri Dec 7 19:10:24 CET 2007
271	root	1.75	- changed/implemented idle watcher priority.
272			- allow out-of-range priorities to be set.
273			- fix ->priority to actually work on started watchers.
274			- improved testsuite.
275
276	root	1.74	1.6 Wed Dec 5 15:06:20 CET 2007
277	root	1.70	- add a missing SPAGAIN.
278	root	1.71	- ripped out EV::DNS, use EV::ADNS for a better backend.
279			- make ev_time callable from EVAPI.h.
280	root	1.72	- add EV::loop_count.
281	root	1.73	- some space optimisations.
282	root	1.70
283	root	1.69	1.5 Wed Nov 28 20:19:09 CET 2007
284	root	1.67	- add inotify backend.
285	root	1.69	- make testsuite even less sensible to timing issues,
286			add more stat tests.
287	root	1.68	- add ->attr, ->prev, ->stat calls to stat watcher.
288	root	1.67
289	root	1.66	1.4 Tue Nov 27 17:35:27 CET 2007
290	root	1.64	- work around a linux 2.4 kernel bug in child handlers.
291			- implement stat watcher interface.
292	root	1.65	- implement fork watcher interface.
293	root	1.64	- io->set did not keep the fh alive.
294			- actively check signal numbers/names to be valid.
295			- cleanups, minor fixes, new bugs.
296	root	1.66	- work around windows bugs in the testsuite.
297	root	1.64
298	root	1.63	1.3 Sun Nov 25 10:46:57 CET 2007
299			- stopping idle/check/prepare watchers could cause data corruption.
300	root	1.58	- implement and document EV::once.
301	root	1.57	- improved documentation, verify that netbsd indeed has the only
302			working kqueue implementation (out of darwin, freebsd, netbsd and
303			openbsd). Praise them!
304	root	1.62	- fix the data method so it might work.
305	root	1.59	- expose ev_ref/ev_unref to the C API.
306	root	1.61	- expose ref/unref in form of the ->keepalive method to perl.
307	root	1.58	- minor bugfixes and portability fixes.
308	root	1.57
309	root	1.56	1.2 Thu Nov 22 05:44:09 CET 2007
310			- disable kqueue by default on !netbsd, as its broken on freebsd,
311			darwin and openbsd and thus almost everywhere.
312			- add some allowance in t/01_timer.t for the uneven monotonic
313			vs. realtime clock tick on at least freebsd.
314			- add -lsocket -lnsl on solaris in case the perl guy forgot to
315			configure them.
316
317	root	1.55	1.1 Wed Nov 21 06:08:48 CET 2007
318	root	1.53	- improved timer test to include periodics and
319			withstand small timing variations.
320	root	1.54	- many minor tweaks to libev.
321	root	1.53
322	root	1.52	1.0 Fri Nov 16 14:51:59 CET 2007
323	root	1.50	- require AnyEvent update if AnyEvent is installed.
324	root	1.51	- add solaris 10 port-based backend.
325			- add child_ns and fix check_ns.
326	root	1.52	- treat yes/no as enforcement, not as hint, when configuring,
327			documentation update (reported by Andy Grundman).
328	root	1.50
329	root	1.49	0.9 Wed Nov 14 22:24:49 CET 2007
330	root	1.45	- changed LIBEV_METHODS to LIBEV_FLAGS and the
331			way this is used inside libev.
332	root	1.46	- many, many bugfixes.
333			- add unloop constants.
334	root	1.47	- add timer test.
335	root	1.48	- ev_loop will now terminate immediately when no watchers are active.
336	root	1.45
337	root	1.44	0.8 Mon Nov 12 02:28:46 CET 2007
338	root	1.41	- fix "testsuite" again :().
339			- fix check/idle/prepare/child watcher stop.
340	root	1.42	- enourmously many fixes.
341			- rewritten select backend (mostly for win32).
342			- cache socket handles on win32.
343	root	1.43	- provide considerably finer control over configuration.
344	root	1.41
345	root	1.40	0.7 Fri Nov 9 20:37:58 CET 2007
346	root	1.39	- move AnyEvent adaptor into the AnyEvent module.
347	root	1.41	- use private copy of evdns.[ch].
348	root	1.39	- many minor fixes.
349
350	root	1.38	0.6 Thu Nov 8 18:23:43 CET 2007
351	root	1.95	- (libev) better native win32 support.
352	root	1.35	- fix idle watchers.
353	root	1.37	- implement and document periodic reschedule callbacks.
354			- do not run dns test on !linux platforms (actually to exclude win32).
355	root	1.38	- fix (unused in EV :) poll backend.
356	root	1.34
357	root	1.33	0.51 Tue Nov 6 19:50:22 CET 2007
358	root	1.32	- fix kqueue/poll compilation issue.
359	root	1.33	- work around design issues in kqueue.
360	root	1.32	- enable kqueue by default, seems to work.
361
362	root	1.31	0.5 Tue Nov 6 17:37:44 CET 2007
363	root	1.23	- add signal and pid mutators.
364	root	1.27	- add rstatus/rpid accessors.
365	root	1.24	- updated libev (lower cost for clock monotonic).
366	root	1.25	- support event priorities.
367	root	1.26	- try to find SIG_SIZE on perls that don't have it (Slaven Rezic).
368	root	1.28	- improved signal handling, fixed child watchers.
369	root	1.29	- experimentally add kqueue backend, completely untested.
370	root	1.30	- ported to cygwin and native win32.
371	root	1.23
372	root	1.22	0.1 Thu Nov 1 18:29:22 CET 2007
373	root	1.18	- replaced libevent by libev (total rewrite).
374			- many bugfixes w.r.t. libevent.
375			- new watcher types: periodic, check, prepare, child, idle.
376	root	1.16	- performance optimisations.
377	root	1.19	- added interactive configuration.
378	root	1.21	- added fork support.
379	root	1.16
380	root	1.14	0.03 Mon Oct 29 20:52:50 CET 2007
381	root	1.9	- add timed_io convenience constructors.
382			- improve documentation.
383	root	1.8	- support signal names in addition to signal numbers.
384	root	1.9	- support signal anyevent watchers.
385	root	1.10	- vastly improved testsuite (its all relative :).
386	root	1.11	- add EV::MakeMaker, beginning of C-level API.
387	root	1.12	- force strings to byte form.
388	root	1.6
389	root	1.5	0.02 Sun Oct 28 07:40:21 CET 2007
390	root	1.15	- call $EV::DIED in case a callback throws an exception.
391	root	1.4	- add const char * to typemap for possible 5.6 compatibility.
392	root	1.3
393			0.01 Sat Oct 27 19:10:18 CEST 2007
394			- initial release.
395
396			0.00 Fri Oct 26 11:12:57 CEST 2007
397	root	1.1	- original version; cloned from JSON::XS
398