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Revision: 1.241
Committed: Tue Nov 19 13:08:54 2019 UTC (4 years, 5 months ago) by root
Branch: MAIN
Changes since 1.240: +3 -0 lines
Log Message:
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File Contents

# Content
1 Revision history for Perl extension EV
2
3 Changes marked with (libev) are changes in libev, and have more
4 documentation in the libev Changes file.
5
6 4.28 Tue Nov 19 13:55:39 CET 2019
7 - (libev) fix ev_port backend, thanks to David H. Gutteridge for
8 reminding me to actually release the fix.
9 - try to name ev.h more explicitly, to hopefully improve portability.
10 - opportunistically round up wait times for poll and epoll backend,
11 to avoid unnecessary loop iterations.
12 - add build dependency on ev_linuxaio.c.
13 - quickly (re)-ported to minix 3.3 before minix crashed again.
14
15 4.27 Thu Jun 27 09:39:58 CEST 2019
16 - (libev) completely rewritten linuxaio backend, maybe
17 usable as a general-use backend.
18 - (libev) use more aggressive assertions to catch
19 more usage errors.
20 - allow users to re-enable assert() in case it is disabled
21 by perl (which is typically the case).
22
23 4.26 Mon Jun 24 23:39:40 CEST 2019
24 - (libev) included experimental linux aio backend.
25 - allow the linux aio backend to be used by default
26 only when explicitly configured during Makefile.PL time.
27
28 4.25 Fri Dec 21 08:04:26 CET 2018
29 - (libev) updated to libev 4.25, minor fixes and enhancements.
30 - document the requirement to "use EV" when using EV::MakeMaker.
31 - only use __register_atfork with glibc and uclibc, as musl
32 defines __linux__, but doesn't implement the linux standard
33 base ABI, nor makes itself detectable via a macro, both apparently
34 by design, winning the "broken by design 2016 award" - well done.
35 - correct EV::periodic example 24h after midnight -> one day after
36 midnight (reported by Felix Ostmann).
37
38 4.22 Sun Dec 20 02:34:39 CET 2015
39 - (libev) when epoll detects unremovable fds in the fd set, rebuild
40 only the epoll descriptor, not the signal pipe, to avoid
41 SIGPIPE in ev_async_send. This doesn't solve it on fork,
42 so document what needs to be done in ev_loop_fork
43 (analyzed by Benjamin Mahler).
44 - (libev) remove superfluous sys/timeb.h include on win32
45 (analyzed by Jason Madden).
46 - updated libecb.
47
48 4.21 Mon Jul 13 21:47:33 CEST 2015
49 - allow argument in timer->again.
50 - document timer->remaining.
51 - document default repeat value for timer->set.
52
53 4.20 Sat Jun 20 13:07:34 CEST 2015
54 - added stability canary support.
55 - truly rely on automatic configuration for clock_gettime and others.
56 unfortunately, this doesn't help with activeperl and similar perls,
57 which define _POSIX_TIMERS without actually implementing any of it.
58 - (libev, ecb) make it compile as C++ again.
59 - (libev) fix a potential aliasing issue when accessing watcher cbs.
60
61 4.18 Sat Sep 6 20:37:23 CEST 2014
62 - use slightly better weay to find includes, to support multiarch
63 on newer perls.
64
65 4.17 Fri Apr 11 06:22:38 CEST 2014
66 - perl5porters broke Async::Interrupt, BDB, EV, IO::AIO, OpenCL
67 without warning by switching the meaning of USE_SOCKETS_AS_HANDLES
68 in 5.18. What's so attractive about giving a shit about backwards
69 compatibility - I will never understand.
70
71 4.16 Sat Mar 8 16:49:05 CET 2014
72 - make sure EV::CHECK is available at all times.
73 - avoid a spurious warning when perl -w overrides "no warnings".
74 - use perl's signal implementation on WIN32.
75 - ensure extern "C" function pointers are used for externally-visible
76 pointers.
77 - (libev) mark event pipe fd as cloexec after a fork (analyzed by Sami Farin).
78 - (ecb) support m68k, m88k and sh (patch by Miod Vallat).
79 - (libev) in the absence of autoconf, do not use the clock syscall
80 on glibc >= 2.17 (avoids the syscall AND -lrt on systems
81 doing clock_gettime in userspace).
82 - (ecb) work around memory barriers and volatile apparently both being
83 broken in visual studio 2008 and later (analysed and patch by Nicolas Noble).
84
85 4.15 Fri Mar 1 12:15:53 CET 2013
86 - (libev) upgrade to 4.15 - too many changes to list.
87 - EV::run now returns a boolean.
88 - API version 5:1.
89 - document that cleanup watchers are not available via perl.
90 - cast I32 to int in error message printf.
91 - remove dependencies on librt and libpthreads on GNU/Linux.
92
93 4.11 Sat Feb 4 19:56:26 CET 2012
94 - (libev) implement memory fences for (obsolete) llvm-gcc.
95
96 4.10 Thu Jan 19 18:54:23 CET 2012
97 - (libev) fix a race where the workaround against the epoll fork
98 bugs caused signals to not be handled anymore.
99 - (libev) correct backend_fudge for most backends, and implement
100 a windows specific workaround to avoid looping because we call
101 both select and Sleep, both with different time resolutions.
102 - e_new wasn't declared static (causing very minor .so bloat).
103 - replace more old api names by new ones.
104
105 4.03 Tue Jan 11 14:51:05 CET 2011
106 - do not avoid the clock_gettime call on GNU/Linux anymore, as EV
107 links against -lpthread anyways - as a result, EV might now take
108 advantage of fast userspace clock_gettime implementations,
109 but also links against -lrt.
110 - (libev) lots of event port bug workarounds.
111 - (libev) officially support files in I/O watchers.
112 - (libev) new function ev_feed_signal.
113 - fix documentation parts still refering to the 3.x API.
114
115 4.02 Thu Dec 30 08:27:41 CET 2010
116 - the revents argument did not stringify correctly, as only the
117 numeric value was updated, while the string value was kept from
118 previous invocations.
119
120 4.01 Sun Dec 5 12:42:13 CET 2010
121 - fully support EV_COMPAT3=0.
122 - default_fork was stupidly defined as inline.
123 - ask cpan to upgrade AnyEvent if < 5.29.
124 - support EV_EXTRA_DEFS during configuration.
125 - support -DEV_NO_LOOPS for snakker build.
126
127 4.00 Mon Oct 25 13:30:09 CEST 2010
128 - many API changes, see the manual.
129 - (libev) lots and lots of bugfixes, see the ev documentation.
130 - fix a bug where inotify usage would parse the same event
131 multiple times, causing various forms of breakage.
132 - greatly reduce stack usage for inotify (8kb to <0.5kb).
133 - expose ev_depth and ev_verify via the XS API.
134 - implement ev_cleanup watchers.
135 - (libev) ev_embed_stop did not correctly stop the watcher.
136 - (libev) disable poll backend on AIX.
137 - (libev) rename EV_TIMEOUT to EV_TIMER.
138 - (libev) add section on accept() problems to the manpage.
139 - (libev) no child watchers on win32.
140 - make code more aliasing compliant, in case perl is ever
141 translated to C.
142 - document the EV::CHECK runtime unavailability.
143 - ported to minix 3.1.7.
144
145 3.9 Thu Dec 31 07:59:59 CET 2009
146 - disable t/07* under automatic testing.
147 - increase t/09* timeouts as netbsd has *horribly* broken
148 select/kevent that *usually* sleep >>0.6s instead of 0.3.
149 - add constants EV::FLAG_NOSIGFD, EV::FLAG_NOINOTIFY and
150 EV::BACKEND_ALL.
151 - (libev) signalfd is no longer used by default.
152 - (libev) backport inotify code to C89.
153 - (libev) inotify file descriptors could leak into child processes.
154 - (libev) ev_stat watchers could keep an errornous extra ref on the loop.
155 - (libev) take advantage of inotify_init1, if available.
156 - (libev) the signal handling pipe wasn't always initialised under windows.
157 - changed minimum glibc requirement from glibc 2.9 to 2.7, for signalfd.
158 - (libev) only replace ev_stat.prev when we detect an actual difference.
159
160 3.8 Sun Aug 9 15:30:10 CEST 2009
161 - implement $loop->signal/signal_ns.
162 - (libev) incompatible change: do not necessarily reset signal
163 handler to SIG_DFL when a sighandler is stopped.
164 - (libev) ev_default_destroy did not properly free or zero some
165 members, potentially causing crashes and memory corruption on
166 repated ev_default_destroy/ev_default_loop calls.
167 - (libev) take advantage of signalfd on GNU/Linux systems.
168 - (libev) document that the signal mask might be in an unspecified
169 state when using libev's signal handling.
170 - (libev) take advantage of some GNU/Linux calls to set
171 cloexec/nonblock on fd creation, to avoid race conditions.
172 - implement internal glue code to interface more efficiently
173 with AnyEvent.
174
175 3.7 Fri Jul 17 16:49:16 CEST 2009
176 - add EV::loop_verify and EV::loop_depth.
177 - use output filehandle for i/o watchers waiting
178 for EV_WRITE, otherwise input filehandle.
179 - use common schmorp.h header.
180 - add EV::Timer->remaining.
181 - allow for subclassing of EV::Loop (see the exciting
182 EV::Loop::Async module for an example).
183 - added EV::invoke_pending and EV::pending_count.
184
185 - (libev) ev_unloop and ev_loop wrongly used a global variable to
186 exit loops, instead of using a per-loop variable.
187 - (libev) the ev_set_io_collect_interval interpretation has changed.
188 - add new functionality: EV::invoke_pending, EV::pending_count.
189 - add $timer->remaining.
190 - add EV::loop_depth.
191 - (libev) calling unloop in fork/prepare watchers will no longer poll
192 for new events.
193 - (libev) use GetSystemTimeAsFileTime instead of _timeb on windows,
194 for slightly higher accuracy.
195 - (libev) actually 0-initialise struct sigaction when installing
196 signals.
197
198 3.6 Tue Apr 28 02:50:37 CEST 2009
199 - keepalive(0) could decrease the refcount of the loop
200 permanently.
201 - add ev_suspend/ev_resume, also make ev_now_update
202 accessible via the XS API.
203 - most EV::<eventtype> constants were missing and have been
204 added :/.
205 - add EV::VERSION_MAJOR/VERSION_MINOR constants.
206 - (libev) multiple timers becoming ready within an event loop
207 iteration will be invoked in the "correct" order now.
208 - (libev) do not leave the event loop early just because we have
209 no active watchers, fixing a problem when embedding a kqueue
210 loop that has active kernel events but no registered watchers
211 (reported by blacksand blacksand).
212 - (libev) correctly zero the idx values for arrays, so destroying
213 and reinitialising the default loop actually works (patch by
214 Malek Hadj-Ali).
215 - (libev) new EV::CUSTOM revents flag for use by applications.
216 - (libev) add documentation section about priorites.
217 - (libev) add a glossary to the dcoumentation.
218 - (libev) extend the ev_fork description slightly.
219 - (libev) optimize a jump out of call_pending.
220 - t/03_keepalive could fail when there was no actual error.
221
222 3.53 Sun Feb 15 02:38:20 CET 2009
223 - (libev) on win32, the event loop creation could randomly fail
224 due to an initialised variable having the wrong value.
225 - (libev) probe for CLOCK_REALTIME support at runtime as well and
226 fall back to gettimeofday if there is an error, to support older
227 operating systems with newer header files/libraries.
228 - prefer gettimeofday over clock_gettime by default.
229
230 3.52 Wed Jan 7 21:46:14 CET 2009
231 - (libev) fix some issues in the select backend when in fd_set mode.
232 - (libev) due to a thinko, instead of disabling everything but
233 select on the borked OS X platform, everything but select was
234 allowed (reported by Emanuele Giaquinta).
235 - (libev) actually verify that local and remote port are matching in
236 libev's socketpair emulation, which makes denial-of-service
237 attacks harder (but not impossible - it's windows). Make sure
238 it even works under vista, which thinks that getpeer/sockname
239 should return fantasy port numbers.
240
241 3.51 Wed Dec 24 23:01:59 CET 2008
242 - do not cache the arguments passed to callbacks if the refcount
243 indicates that the callback has stolen them.
244 - (libev) try to avoid librt on GNU/Linux.
245 - (libev) check port_getn return value dfferently, might potentially
246 avoid problems.
247 - (libev) fix a bug with stat watchers possibly causing freezes.
248 - (libev) work around OS X 10.5 breaking poll, now select is the
249 only viable choice left on that pile of garbage.
250 - play tester whore: disable some tests that typically fail only
251 on cpan tester machines.
252
253 3.49 Wed Nov 19 11:26:53 CET 2008
254 - fix typos in manpage (Alex Efros).
255 - increase timing even further, for the ever-overloaded cpan-tester
256 machines, and to the detriment of everybody else who wants a fast
257 make test.
258 - possible 5.6 compatibility.
259 - (libev) use inotify even on buggy kernels, but don't rely on it.
260 - (libev) use inotify only as an added hint on network filesystems.
261
262 3.48 Thu Oct 30 09:09:48 CET 2008
263 - (libev) use a generation counter to detect spurious epoll events
264 and recreate the kernel in such a case (sorry, it's slow, but
265 I didn't design epoll...).
266 - (libev) optimise away an EPOLL_CTL_ADD/MOD combo in the epoll
267 backend in some cases.
268 - (libev) use memset to initialise most arrays now and do away
269 with the init functions.
270 - speed up event callback invocation further (~15%), by
271 not creating the object reference each time.
272 - EV::sleep was documented, but not implemented. fun.
273
274 3.45 Tue Oct 21 22:20:39 CEST 2008
275 - (libev) disable inotify usage on linux <2.6.25 (kernel bug).
276 - (libev) ev_embed will now automatically follow fork.
277 - (libev) ev_once will now pass both io and timeout events to
278 the callback when both happen concurrently, instead of giving
279 one precedence.
280 - install C library documentation as EV::libev manpage (sorry, oesi).
281 - (libev) fix a minor performance bug in ev_stat handling.
282
283 3.44 Mon Sep 29 05:16:31 CEST 2008
284 - (libev) add EV::now_update and $loop->now_update.
285
286 3.431 Sun Jul 13 00:19:02 CEST 2008
287 - made the EV::embed callback optional again. reported by
288 Vladimir Timofeev.
289
290 3.43 Tue Jul 8 20:56:31 CEST 2008
291 - disabled warnings in EV.pm, the CHECK issue is now understood
292 and harmless.
293
294 3.42 Mon May 26 07:36:46 CEST 2008
295 - (libev) work around another bug in windows perls and
296 windows itself: failed connects do NOT set read or write
297 flags in select, but this version of libev will.
298
299 3.41 Thu May 22 01:39:40 CEST 2008
300 - (libev) fix many heap-related bugs (timers, periodics).
301 - (libev) improve timing stability of timers and periodics.
302 - expose ev_loop_verify to perl code.
303 - clarify documentation for periodic reschedule callbacks.
304 - verify that the passed callback argument is indeed a code
305 reference, for earlier error reporting and a nice calling
306 speed increase (as well as saving memory).
307
308 3.4 Tue May 20 21:51:55 CEST 2008
309 - (libev) work around both a windows bug and a bug in perl's
310 select on windows when not waiting for any file descriptors.
311 - bundle ev.pod into the tarball, just to increase its size
312 (and for the poor internetless person).
313
314 3.33 Sun May 18 12:43:04 CEST 2008
315 - (libev) use numerous enhancements such as a more
316 cache-friendly 4-heap and heap index caching for timers.
317 - remove undocumented ev_timer->at accessor.
318
319 3.31 Wed Apr 16 20:48:59 CEST 2008
320 - (libev) post-last-minute fix for ev_poll.c problem.
321
322 3.3 Wed Apr 16 19:04:47 CEST 2008
323 - (libev) linux eventfd support.
324 - (libev) inline more with C99 compilers.
325 - (libev) work around a number of bugs in valgrind.
326 - (libev) work around broken realloc on openbsd and darwin.
327 - added example to EV::MakeMaker manpage.
328 - add async_pending method.
329
330 3.2 Wed Apr 2 17:08:16 CEST 2008
331 - "ported" again to the Microsoft "C" language.
332 - relax testsuite timing for the benefit of freebsd users once more.
333 - fix EVAPI's ev_time and ev_sleep macros.
334 - (libev) fix select backend on 64 bit architetcures.
335 - (libev) ev_loop flags are now local to each invocation.
336
337 3.1 Sat Mar 8 11:41:14 CET 2008
338 - add ev_sync_* and ev_fork_* to EVAPI.h.
339 - provide EV::Embed->sweep method.
340 - new watcher type: async (not very useful in perl).
341
342 3.0 Mon Jan 28 13:23:11 CET 2008
343 - upgrade to libev-3.0.
344 - change child handler to incorporate tracing flag.
345
346 2.01 Mon Dec 31 01:59:19 CET 2007
347 - found a minor problem in the testsuite that is only
348 caught by new Test::Harness versions (reported by Andreas
349 König).
350
351 2.0 Sat Dec 22 17:47:03 CET 2007
352 - no longer force kqueue when enabled, enable it
353 on more systems (as its now by default not used on most).
354 - expose fork watchers.
355 - switch to libev's MULTIPLICITY API.
356 - use a slightly different include file name strategy.
357 - get rid of (unused) libevent emulation.
358 - 5% watcher management speedup due to callback optimisation
359 when inline closures are used, 5% slowdown due to multiplicity.
360 - very minimal support for dynamic event loops and embed watchers.
361 - fix name of prepare start/stop methods.
362 - create and export EV::sleep and EV::set_*_collect_interval.
363 - fix typos in manpage (Alex Efros).
364
365 1.86 Tue Dec 18 02:36:57 CET 2007
366 - add periodic->at methods.
367
368 1.85 Fri Dec 14 20:32:40 CET 2007
369 - further optimise epoll backend by adding a heuristic that
370 avoids EPOLL_CTL_DEL calls if possible.
371 - EV::signal->start was not async-signal safe.
372 - optimise start/stop when the fd hasn't changed.
373
374 1.8 Tue Dec 11 22:17:46 CET 2007
375 - API version 3:0.
376 - reduced fudge factor to zero for select, poll, epoll
377 and kqueue: your system better be posix-compliant
378 even in its extensions :->
379 - improve long-term numerical stability in periodic watchers
380 by introducing a separate offset value instead of reusing at.
381 - recalculate real/monotonic clocks before blocking fully
382 to avoid blocking for longer than necessary.
383 - fix bugs in the heap functions. this rarely lead to illegal
384 heap orderings.
385
386 1.72 Sat Dec 8 15:31:26 CET 2007
387 - add dummy loop arguments to some EVAPI functions
388 so that clients can use EV_A and EV_DEFAULT.
389 - expose ev_clear_pending.
390 - renamed trigger to invoke.
391
392 1.71 Fri Dec 7 19:10:24 CET 2007
393 - changed/implemented idle watcher priority.
394 - allow out-of-range priorities to be set.
395 - fix ->priority to actually work on started watchers.
396 - improved testsuite.
397
398 1.6 Wed Dec 5 15:06:20 CET 2007
399 - add a missing SPAGAIN.
400 - ripped out EV::DNS, use EV::ADNS for a better backend.
401 - make ev_time callable from EVAPI.h.
402 - add EV::loop_count.
403 - some space optimisations.
404
405 1.5 Wed Nov 28 20:19:09 CET 2007
406 - add inotify backend.
407 - make testsuite even less sensible to timing issues,
408 add more stat tests.
409 - add ->attr, ->prev, ->stat calls to stat watcher.
410
411 1.4 Tue Nov 27 17:35:27 CET 2007
412 - work around a linux 2.4 kernel bug in child handlers.
413 - implement stat watcher interface.
414 - implement fork watcher interface.
415 - io->set did not keep the fh alive.
416 - actively check signal numbers/names to be valid.
417 - cleanups, minor fixes, new bugs.
418 - work around windows bugs in the testsuite.
419
420 1.3 Sun Nov 25 10:46:57 CET 2007
421 - stopping idle/check/prepare watchers could cause data corruption.
422 - implement and document EV::once.
423 - improved documentation, verify that netbsd indeed has the only
424 working kqueue implementation (out of darwin, freebsd, netbsd and
425 openbsd). Praise them!
426 - fix the data method so it might work.
427 - expose ev_ref/ev_unref to the C API.
428 - expose ref/unref in form of the ->keepalive method to perl.
429 - minor bugfixes and portability fixes.
430
431 1.2 Thu Nov 22 05:44:09 CET 2007
432 - disable kqueue by default on !netbsd, as its broken on freebsd,
433 darwin and openbsd and thus almost everywhere.
434 - add some allowance in t/01_timer.t for the uneven monotonic
435 vs. realtime clock tick on at least freebsd.
436 - add -lsocket -lnsl on solaris in case the perl guy forgot to
437 configure them.
438
439 1.1 Wed Nov 21 06:08:48 CET 2007
440 - improved timer test to include periodics and
441 withstand small timing variations.
442 - many minor tweaks to libev.
443
444 1.0 Fri Nov 16 14:51:59 CET 2007
445 - require AnyEvent update if AnyEvent is installed.
446 - add solaris 10 port-based backend.
447 - add child_ns and fix check_ns.
448 - treat yes/no as enforcement, not as hint, when configuring,
449 documentation update (reported by Andy Grundman).
450
451 0.9 Wed Nov 14 22:24:49 CET 2007
452 - changed LIBEV_METHODS to LIBEV_FLAGS and the
453 way this is used inside libev.
454 - many, many bugfixes.
455 - add unloop constants.
456 - add timer test.
457 - ev_loop will now terminate immediately when no watchers are active.
458
459 0.8 Mon Nov 12 02:28:46 CET 2007
460 - fix "testsuite" again :().
461 - fix check/idle/prepare/child watcher stop.
462 - enourmously many fixes.
463 - rewritten select backend (mostly for win32).
464 - cache socket handles on win32.
465 - provide considerably finer control over configuration.
466
467 0.7 Fri Nov 9 20:37:58 CET 2007
468 - move AnyEvent adaptor into the AnyEvent module.
469 - use private copy of evdns.[ch].
470 - many minor fixes.
471
472 0.6 Thu Nov 8 18:23:43 CET 2007
473 - (libev) better native win32 support.
474 - fix idle watchers.
475 - implement and document periodic reschedule callbacks.
476 - do not run dns test on !linux platforms (actually to exclude win32).
477 - fix (unused in EV :) poll backend.
478
479 0.51 Tue Nov 6 19:50:22 CET 2007
480 - fix kqueue/poll compilation issue.
481 - work around design issues in kqueue.
482 - enable kqueue by default, seems to work.
483
484 0.5 Tue Nov 6 17:37:44 CET 2007
485 - add signal and pid mutators.
486 - add rstatus/rpid accessors.
487 - updated libev (lower cost for clock monotonic).
488 - support event priorities.
489 - try to find SIG_SIZE on perls that don't have it (Slaven Rezic).
490 - improved signal handling, fixed child watchers.
491 - experimentally add kqueue backend, completely untested.
492 - ported to cygwin and native win32.
493
494 0.1 Thu Nov 1 18:29:22 CET 2007
495 - replaced libevent by libev (total rewrite).
496 - many bugfixes w.r.t. libevent.
497 - new watcher types: periodic, check, prepare, child, idle.
498 - performance optimisations.
499 - added interactive configuration.
500 - added fork support.
501
502 0.03 Mon Oct 29 20:52:50 CET 2007
503 - add timed_io convenience constructors.
504 - improve documentation.
505 - support signal names in addition to signal numbers.
506 - support signal anyevent watchers.
507 - vastly improved testsuite (its all relative :).
508 - add EV::MakeMaker, beginning of C-level API.
509 - force strings to byte form.
510
511 0.02 Sun Oct 28 07:40:21 CET 2007
512 - call $EV::DIED in case a callback throws an exception.
513 - add const char * to typemap for possible 5.6 compatibility.
514
515 0.01 Sat Oct 27 19:10:18 CEST 2007
516 - initial release.
517
518 0.00 Fri Oct 26 11:12:57 CEST 2007
519 - original version; cloned from JSON::XS
520