Revision history for Perl extension EV
Changes marked with (libev) are changes in libev, and might have more
documentation in the libev Changes file.
4.34 Sun 08 Oct 2023 23:45:11 CEST
- the EV::stat->path method errornously freed the result, causing
corruption (testcase by Carsten Witt).
- new functino EV::Child::reinit.
4.33 Wed Mar 18 13:31:12 CET 2020
- the enable assertion makefile question failed to enable
assertions due to a typo.
- try harder to avoid perl's assert () which does not actually
behave correctly.
- updated libecb to make it compile under more windows environments.
4.32 Fri Jan 24 14:21:35 CET 2020
- (libev) fixed a bug introduced in 4.31 when timerfds and signalfds were
used at the same time.
- (libev) 0 is now allowed as requested event mask in io watchers.
- (libev) once-per-minute wakeups will now be optimized away when
timerfds are available
- use the new ev_io_modify in EV::IO->events, instead of the potentially
slower ev_io_set.
- add a bunch of mutator methods, mostly untested(!): EV::Timer->repeat,
EV::Periodic->offset, EV::Periodic->interval,
EV::Periodic->reschedule_cb.
- minor optimisations and bugfixes.
4.31 Fri Dec 20 21:57:00 CET 2019
- (libev) handle backends with minimum wait time a bit better by
not waiting in the presence of already-expired timers
(behaviour reported by Felipe Gasper).
- (libev) use timerfd to detect timejumps.
- (libev) new loop flag: EVFLAG_NOTIMERFD.
4.30 Fri Nov 22 21:00:00 CET 2019
- (libev) use a different and hopefully even more portable
test to disable io_uring when header files are too old,
by directly testing LINUX_VERSION_CODE.
- (libev) fix a bug in the io_uring backend that polled the wrong
backend fd, causing it to not work in many cases.
4.29 Fri Nov 22 15:34:29 CET 2019
- (libev) add io uring autoconf and non-autoconf detection,
the latter of which should disable io_uring compilation
on old systems.
4.28 Tue Nov 19 13:55:39 CET 2019
- (libev) fix ev_port backend, thanks to David H. Gutteridge for
- (libev) many bugfixes in linuxaio backend.
- (libev) experimental io uring interface.
reminding me to actually release the fix.
- try to name ev.h more explicitly, to hopefully improve portability.
- opportunistically round up wait times for poll and epoll backend,
to avoid unnecessary loop iterations.
- add build dependency on ev_linuxaio.c.
- quickly (re)-ported to minix 3.3 before minix crashed again.
4.27 Thu Jun 27 09:39:58 CEST 2019
- (libev) completely rewritten linuxaio backend, maybe
usable as a general-use backend.
- (libev) use more aggressive assertions to catch
more usage errors.
- allow users to re-enable assert() in case it is disabled
by perl (which is typically the case).
4.26 Mon Jun 24 23:39:40 CEST 2019
- (libev) included experimental linux aio backend.
- allow the linux aio backend to be used by default
only when explicitly configured during Makefile.PL time.
4.25 Fri Dec 21 08:04:26 CET 2018
- (libev) updated to libev 4.25, minor fixes and enhancements.
- document the requirement to "use EV" when using EV::MakeMaker.
- only use __register_atfork with glibc and uclibc, as musl
defines __linux__, but doesn't implement the linux standard
base ABI, nor makes itself detectable via a macro, both apparently
by design, winning the "broken by design 2016 award" - well done.
- correct EV::periodic example 24h after midnight -> one day after
midnight (reported by Felix Ostmann).
4.22 Sun Dec 20 02:34:39 CET 2015
- (libev) when epoll detects unremovable fds in the fd set, rebuild
only the epoll descriptor, not the signal pipe, to avoid
SIGPIPE in ev_async_send. This doesn't solve it on fork,
so document what needs to be done in ev_loop_fork
(analyzed by Benjamin Mahler).
- (libev) remove superfluous sys/timeb.h include on win32
(analyzed by Jason Madden).
- updated libecb.
4.21 Mon Jul 13 21:47:33 CEST 2015
- allow argument in timer->again.
- document timer->remaining.
- document default repeat value for timer->set.
4.20 Sat Jun 20 13:07:34 CEST 2015
- added stability canary support.
- truly rely on automatic configuration for clock_gettime and others.
unfortunately, this doesn't help with activeperl and similar perls,
which define _POSIX_TIMERS without actually implementing any of it.
- (libev, ecb) make it compile as C++ again.
- (libev) fix a potential aliasing issue when accessing watcher cbs.
4.18 Sat Sep 6 20:37:23 CEST 2014
- use slightly better weay to find includes, to support multiarch
on newer perls.
4.17 Fri Apr 11 06:22:38 CEST 2014
- perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
in 5.18. What's so attractive about giving a shit about backwards
compatibility - I will never understand.
4.16 Sat Mar 8 16:49:05 CET 2014
- make sure EV::CHECK is available at all times.
- avoid a spurious warning when perl -w overrides "no warnings".
- use perl's signal implementation on WIN32.
- ensure extern "C" function pointers are used for externally-visible
pointers.
- (libev) mark event pipe fd as cloexec after a fork (analyzed by Sami Farin).
- (ecb) support m68k, m88k and sh (patch by Miod Vallat).
- (libev) in the absence of autoconf, do not use the clock syscall
on glibc >= 2.17 (avoids the syscall AND -lrt on systems
doing clock_gettime in userspace).
- (ecb) work around memory barriers and volatile apparently both being
broken in visual studio 2008 and later (analysed and patch by Nicolas Noble).
4.15 Fri Mar 1 12:15:53 CET 2013
- (libev) upgrade to 4.15 - too many changes to list.
- EV::run now returns a boolean.
- API version 5:1.
- document that cleanup watchers are not available via perl.
- cast I32 to int in error message printf.
- remove dependencies on librt and libpthreads on GNU/Linux.
4.11 Sat Feb 4 19:56:26 CET 2012
- (libev) implement memory fences for (obsolete) llvm-gcc.
4.10 Thu Jan 19 18:54:23 CET 2012
- (libev) fix a race where the workaround against the epoll fork
bugs caused signals to not be handled anymore.
- (libev) correct backend_fudge for most backends, and implement
a windows specific workaround to avoid looping because we call
both select and Sleep, both with different time resolutions.
- e_new wasn't declared static (causing very minor .so bloat).
- replace more old api names by new ones.
4.03 Tue Jan 11 14:51:05 CET 2011
- do not avoid the clock_gettime call on GNU/Linux anymore, as EV
links against -lpthread anyways - as a result, EV might now take
advantage of fast userspace clock_gettime implementations,
but also links against -lrt.
- (libev) lots of event port bug workarounds.
- (libev) officially support files in I/O watchers.
- (libev) new function ev_feed_signal.
- fix documentation parts still refering to the 3.x API.
4.02 Thu Dec 30 08:27:41 CET 2010
- the revents argument did not stringify correctly, as only the
numeric value was updated, while the string value was kept from
previous invocations.
4.01 Sun Dec 5 12:42:13 CET 2010
- fully support EV_COMPAT3=0.
- default_fork was stupidly defined as inline.
- ask cpan to upgrade AnyEvent if < 5.29.
- support EV_EXTRA_DEFS during configuration.
- support -DEV_NO_LOOPS for snakker build.
4.00 Mon Oct 25 13:30:09 CEST 2010
- many API changes, see the manual.
- (libev) lots and lots of bugfixes, see the ev documentation.
- 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).
- expose ev_depth and ev_verify via the XS API.
- implement ev_cleanup watchers.
- (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