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Comparing Coro/Changes (file contents):
Revision 1.114 by root, Tue Nov 29 10:45:32 2005 UTC vs.
Revision 1.540 by root, Tue Jul 27 14:42:34 2010 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2TODO: Coro::Select (select) and "" both don'T work
3 2
3TODO: should explore PerlIO::coroaio (perl leaks like hell).
4TODO: unready_all
5TODO: myhttpd header parsing
6TODO: channel->maxsize(newsize)?
7TODO: http://www.microsoft.com/msj/archive/s2ce.aspx
8
9 - "ported" libcoro to C++.
10
115.23 Mon May 17 18:50:42 CEST 2010
12 - be more resistant to ordering changes when initialising
13 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
14 Waldorf).
15 - document that perl 5.12 deliberately removed support for cloning.
16
175.22 Wed Apr 14 03:55:35 CEST 2010
18 - correctly return udnef on errors in Coro::Handle::read/write
19 (testcase by Marc Mims).
20 - convert Coro::Util into a "perl compatibility wrapper" - the functions
21 are less useful now, but are drop-in replacements for existing
22 functions, listing better alternatives in the documentation. This also
23 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
24 with Coro::Util::inet_aton.
25 - do not override $Coro::idle unconditionally in Coro.pm, as other
26 modules could have provided their own idle coro already
27 (for exmaple, Coro::AnyEvent).
28 - fix Coro::Util::gethost* functions.
29 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
30
315.21 Wed Dec 16 07:19:51 CET 2009
32 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
33 together.
34 - add some examples on how to combine other event loops with Coro in
35 Coro::AnyEvent, and how to run it (and not to block). Seems to be
36 the most common source of confusion.
37 - try to catch people naively blocking in an event callback.
38 - work around the perl filehandle bug issue in conjunction with
39 older common::sense (as indirectly pointed out by ZSystem).
40 - clarify the "not from signal handlers" section.
41
425.2 Sun Oct 4 14:54:24 CEST 2009
43 - Coro::Storable destroyed the prototypes of the functions it wrapped.
44 - export rouse_cb and rouse_wait by default now.
45 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
46 - new method $state->swap_sv.
47 - added section on "windows process emulation" to the manpage,
48 after a not-so-fruitful (nor-friendly) "discussion" with chip
49 salzenberg (discussion implies arguments, but his only arguments
50 were ad-hominems, one wonders why he started it in the first
51 place). I hope this explains it well enough for him to understand,
52 and maybe well enough for others to understand.
53 - use common::sense everywhere now.
54 - idle callbacks are no longer supported, use idle coros instead.
55 - print a thread listing when a deadlock is detected.
56
575.17 Sat Aug 22 23:09:31 CEST 2009
58 - work around a bug in the perl debugger causing crashes
59 when running under the debugger by marking _pool_handler as nodebug.
60 - speed up Coro::async considerably.
61 - try some hacks to get netbsd to work "more often" - their broken
62 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
63 - convert Coro to AE 5.0 API.
64
655.162 Tue Jul 28 04:04:03 CEST 2009
66 - perl 5.8.2 is now minimum requirement.
67 - skip t/19_handle.t on broken windows perls.
68
695.161 Wed Jul 22 04:47:38 CEST 2009
70 - Coro::AnyEvent::poll could have a different prototype when EV was
71 used as backend (analyzed by Tatsuhiko Miyagawa).
72 - Coro::AnyEvent errornously initialised the event loop when loaded,
73 not on demand.
74 - try to workaround rare */t/01_unblock.t failures.
75
765.16 Tue Jul 21 01:44:37 CEST 2009
77 - Coro::AnyEvent failed to hook into the event loop
78 when no threads had been readied between detecting
79 the event loop and actually running it.
80 - considerably speed up Coro::Select by taking avdantage
81 of AnyEvent > 4.8 and some other optimisations.
82 - implement paragraph readline mode in Coro::Handle
83 (based on patches by Zsbán Ambrus).
84 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
85 and analyzed by Yasuhiro MATSUMOTO).
86 - clarified libcoro license and copyright.
87 - someone stole my EXTRA_META!!!
88 - implement Coro::Select::patch_pp_sselect and it's brother,
89 for hardcode select overriding.
90
915.151 Mon Jul 6 05:41:57 CEST 2009
92 - backport to windows process emulation code again (patch by
93 Yasuhiro MATSUMOTO).
94 - slightly update Coro::MakeMaker.
95
965.15 Tue Jun 30 10:28:06 CEST 2009
97 - deprecate Coro::Socket, document how to get ipv6 support via
98 AnyEvent::Socket instead.
99 - implement signal->wait ($cb) interface, similar to semaphores.
100 - work around SvOK not supporting getmagic, so we have to getmagic
101 to test for undef :/ (reported by Matthias Waldorf).
102 - load Coro::AnyEvent in all modules using AnyEvent.
103 - work around perl corrupting our internal data structures,
104 reported by Tokuhiro Matsuno.
105 - enable per-coroutine real and cpu time gathering
106 (Coro::State::enable_times).
107
1085.14 Wed Jun 24 01:37:48 CEST 2009
109 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
110 as this seems to have been a difficult concept (poll, sleep, idle,
111 idle_upto).
112 - add Coro::AnyEvent::readable/writable functions.
113 - clarify Coro::EV/Event/AnyEvent manpages.
114 - free per-thread global scalars in the thread calling ->cancel, to
115 avoid crashes when $_, $@ etc., are magical but some of those
116 had already been freed.
117 - "unexperimentalise" the callback interface for Coro::Semaphore.
118 - speed up ready queue management/context switching by using a linked
119 list instead of an array (~5-10%).
120 - implement "watch" command in Coro::Debug shells.
121 - for fun, implement time-slicing as an example in the manpage.
122 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
123 Coro::Event, use the normal AnyEvent handling instead of dieing
124 (the same is true for Coro::Handle).
125 - properly document Coro::EV::timed_io_once.
126 - avoid unneccessary ->cancel calls in Coro::Handle.
127 - maybe make it work on mingw32 with win32 backend
128 (based on patch by Yasuhiro Matsumoto).
129
1305.132 Fri May 29 09:00:39 CEST 2009
131 - do not keep a reference to the argument itself in
132 Coro::Semaphore::guard, as it could change later.
133 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
134 should support a prepare callback.
135
1365.131 Mon Mar 16 23:20:37 CET 2009
137 - implement and document Coro->suspend, Coro->resume.
138 - fix Coro::Select implementation to not (often) close
139 the passed file descriptors (testcase provided by pippijn).
140
1415.13 Mon Dec 15 21:51:42 CET 2008
142 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
143 - don't set diehook to C<undef> but instead to NULL, to avoid
144 spurious warnings.
145 - fix a lot of bugs in Coro::SemaphoreSet.
146 - Coro::SemaphoreSet will less often create a semaphore needlessly.
147 - add Coro::SemaphoreSet::count and wait methods.
148 - take advantage of the new Guard module.
149 - deprecate Coro::guard.
150 - try to fix the dreaded 01_unblock tests once more. I hate it when
151 testsuites need more fixing than the code they are supposed to test.
152 - croak in more cases when a required callback isn't resolvable.
153 - fix some minor issues in Coro::State->call/eval.
154 - use current coroutine context instead of a temporary one
155 when temporarily switching to another coroutine.
156 - do not call C-level on_destroy handlers during global destruction,
157 to avoid needless segfaults.
158
1595.12 Sun Dec 7 13:30:38 CET 2008
160 - add default config for MirOS, which seems to be a bug-to-bug
161 compatible fork of openbsd ("world domination by releasing
162 openbsd cvs before the openbsd folks do it" or so :).
163 - free_padlist did destroy the names pad, not good, but didn't
164 seem to bother perl - this could fix issues such as eval ""
165 inside a function called from multiple coroutines.
166 - use a different method to detect destruction time.
167 - be more careful when freeing padlists just before global
168 destruction.
169 - fixed and expanded the call/cc example.
170 - renamed _terminate to _coro_run.
171 - new method Coro::Channel->shutdown.
172 - try pthreads on openbsd <4.4 (broken sigaltstack, will
173 pthreads fare better?).
174 - be less picky about destroying "a" running coroutine.
175
1765.11 Tue Nov 25 21:49:05 CET 2008
177 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
178 working code with failed assertions, introducing more bugs than
179 it fixes, requiring elaborate workarounds :(
180
1815.1 Mon Nov 24 08:54:59 CET 2008
182 - wrote a small introductory tutorial - Coro::Intro.
183 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
184 - Coro::Select did errornously dup the file descriptors
185 and didn't work with all AnyEvent backends.
186 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
187 LWP data transfers.
188 - disassociate c contexts from coro objects - this is agruably more
189 correct, but mostly allows sharing of cctxs between coro and state
190 objects, for added memory savings and speed increases.
191 - bumped $Coro::POOL_RSS up to 32kb by default.
192 - no longer set the optype to OP_CUSTOM, as B::* understandably
193 doesn't like this very much (and we *are* a type of entersub).
194 - implement state cloning, just to prove that call/cc can be done.
195 - automatically load Coro::AnyEvent in Coro::Handle.
196 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
197 do not have this method (and don't need it either).
198 - speed up generic anyevent methods in Coro::Handle by using rouse
199 callbacks.
200 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
201 others. It also makes the debugger happier, as you can trace
202 through the idle threads now.
203 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
204 - eg/event was pretty broken.
205 - better 5.8.6 compatibility.
206
2075.0 Thu Nov 20 10:35:05 CET 2008
208 - NEW ARCHITECTURE: use the latest 4.x version if you experience
209 stability issues.
210 - bump API version to 7 - all dependents must be recompiled.
211 - removed timed_* functions - they were not being used anyways
212 and should be replaced by a more generic mechanism -
213 and were annoying to support anyways :)
214 - removed SemaphoreSet's waiter method - use sem method instead.
215 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
216 - async_pool did free a scalar value twice
217 ("Attempt to unreference...").
218 - fix a longstanding bug where calling terminate on a coro that
219 was waiting for a semaphore that was just becoming available
220 would cause a deadlock (semaphore would get into a state where
221 it was available but waiters were still blocked).
222 - calling throw on a coroutine that is waiting for a semaphore will
223 no longer make it acquire the semaphore (and thus leak a count).
224 - perl's process emulation is now not even theoretically supported
225 anymore.
226 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
227 conversion of callback-style to blocking-style.
228 - new methods $coro->schedule_to and ->cede_to, to specifically
229 schedule or cede to a specific coroutine.
230 - new function Coro::Semaphore::wait.
231 - use named constants in Coro::Channel (Richard Hundt).
232 - directly patch the entersub opcode calling SLF functions (cede,
233 transfer and so on). this does speed up context switching, but
234 more importanly, it frees us from the hardcoded behaviour of
235 entersub, so we might actually be able to return something from
236 those functions and atcually create new ones.
237 - take advantage of __builtin_frame_address on gcc.
238 - expose THX in coroapi (not sure whether this was a wise decision,
239 as "threaded" perls are running at half speed anyways).
240 - implement execute_slf (schedule-like-function) interface that makes
241 it possible to implement schedule-like-functions in XS.
242 - use new SLF interface to massively speed up Coro::EV by roughly a
243 factor of two.
244 - used new SLF interface to massively speed up Coro::Semaphore by a
245 factor of three.
246 - used new SLF interface to speed up Coro::AIO by roughly a factor of
247 four and reduce its memory usage considerably.
248 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
249 for a nice speedup and vastly more correct behaviour. Also implement
250 a new method "sem" to get at the underlying semaphore object.
251 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
252 (in comparison) 20-40% speedup.
253 - used new SLF interface to reimplement Coro::Signal gaining
254 some unknown (because I was too lazy), but certain, speedup, and also
255 making signals reliable for the first time.
256 - used new SLF interface and other optimisations to speed up async_pool
257 by a factor of two. It also doesn't rely on perl's exception mechanism
258 to exit anymore. The overhead for terminating an async_pool, coro over
259 a normal async is now very small.
260 - sped up coroutine creation/destruction by 40%.
261 - forgot to include Coro/libcoro/README in the dist for all these years.
262 - work around a freebsd pthreads bug (manual testcancel is required as
263 pthread_cond_wait isn't a cancellation point on freebsd).
264 - use new rouse functions to speed up and simplify Coro::BDB.
265 - make "prefer perl native functions" work with threaded perls.
266 - condense Coro::Debug ps output, hint at v and w flags.
267 - (libcoro) lots of minor cleanups and portability improvements.
268
2694.914 Wed Nov 19 12:54:18 CET 2008
270 - fix a disastrous bug in the readline optimisation
271 introduced in 4.801.
272
2734.913 Sat Nov 15 07:58:28 CET 2008
274 - async_pool did free a scalar value twice
275 ("Attempt to unreference...").
276
2774.912 Thu Nov 13 18:31:23 CET 2008
278 - minor cleanups.
279 - use much larger stacks on linux and perl < 5.8.8.
280 - Coro::Debug::new_unix_server did not unlink the socket
281 when destroyed.
282
2834.911 Tue Nov 11 04:26:17 CET 2008
284 - "port" to threaded perls.
285
2864.91 Mon Nov 10 05:36:38 CET 2008
287 - the ->throw exception object no longer leaks.
288 - creating a new cctx leaked a scopestack entry (memleak).
289 - new coroutines didn't get created with a zero flags field
290 (unknown impact).
291 - calling ->throw on a not-yet-started coroutine should now work
292 instead of being ignored.
293 - ->throw is now supported on Coro::State objects.
294 - clean up cctx creation code a bit.
295 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
296
2974.9 Sat Nov 8 17:45:27 CET 2008
298 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
299 - (libcoro) no longer leak threads in the experimental pthread backend,
300 also speed it up considerably.
301 - (libcoro) do not rely on makecontext passing void *'s unscathed.
302 - fix compiletime dependencies on libcoro in the Makefile.
303 - cctx_count wasn't always updated properly.
304 - Coro::State::cctx_stacksize wasn't applied correctly.
305 - new function Coro::State::cctx_max_idle.
306 - the default max number of idle C contexts is now 4.
307 - (libcoro) try harder to get _setjmp/_longjmp.
308 - (libcoro) cleanup and extend the libcoro API to officially
309 allow the creation of empty source contexts.
310 - very experimental workaround for the totally broken netbsd platform.
311 - tried to hack around openbsd bugs.
312
3134.804 Wed Nov 5 16:36:00 CET 2008
314 - Coro::Debug::new_unix_server would not create a non-blocking listening
315 socket, sometimes causing freezes.
316 - (libcoro) fix misaligned stack points for setjmp and assembly
317 methods, which can cause crashes on x86/x86_64 with a sufficiently
318 aggressive compiler.
319 - new function: Coro::Debug::new_tcp_server.
320 - move ->throw into the Coro class because it only works on coro objects.
321
3224.803 Mon Nov 3 17:16:12 CET 2008
323 - (libcoro) use a global asm statement to become independent of gcc
324 otpimisations for CORO_ASM (thanks to pippijn for the idea).
325 - try to workaround yet another broken bsd, this time dragonfly.
326
3274.802 Thu Oct 30 10:56:12 CET 2008
328 - support -fno-omit-frame-pointer on x86 with the assembly method.
329 - tune 01_unblock.t tests a bit.
330
3314.801 Wed Oct 22 18:33:37 CEST 2008
332 - improve readline speed for very long "lines".
333 - backport to 5.8.8.
334
3354.8 Thu Oct 2 13:34:40 CEST 2008
336 - new function Coro::AIO::aio_wait.
337 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
338 - greatly speed up and reduce memory usage of Coro::AIO requests.
339 - implement some other µ-optimisations.
340
3414.749 Mon Sep 29 14:40:12 CEST 2008
342 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
343
3444.748 Sat Sep 27 14:03:19 CEST 2008
345 - implement, but do not document, PerlIO::cede(granularity).
346 - Coro::Storable forgot to wrap Storable::pstore.
347 - work around the multitude of leaks and memory corruption
348 bugs in PerlIO::via by using our own C-level perliol. As a side
349 effect, Coro::Storable is now much, much, much faster.
350
3514.747 Tue Sep 23 01:59:41 CEST 2008
352 - fix a per-cv memleak (one empty array was leaked per
353 code reference).
354 - avoid a crash in coro->call|rss when the coroutine was already
355 destroyed (most noticably when using Coro::Debug::ps :)
356 - also protect *Storable::FILE.
357 - push up default storable granularity to 20ms.
358
3594.746 Sun Sep 21 03:22:20 CEST 2008
360 - be more insistent on locking Storable against reentrancy
361 in Coro::Storable.
362 - move swap_def?v and throw to Coro::State, as documented.
363
3644.745 Thu Jul 24 00:14:38 CEST 2008
365 - remove debugging code related to MgPV_nolen_const, also try to
366 make it compile with perl 5.8.6 (yes, apple apparently loves
367 outdated software). Reported by John S.
368
3694.744 Tue Jul 8 22:06:35 CEST 2008
370 - correctly provide default DIE/WARN handlers as documented.
371 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
372 implementations inside perl work fine for us.
373
3744.743 Mon Jun 16 00:21:57 CEST 2008
375 - when using Coro::EV without running EV::loop it could
376 result in busy-waiting for events, this has been fixed.
377 - reduce codesize and improve performance by using EV_DEFAULT_UC.
378
3794.742 Sat May 31 14:10:21 CEST 2008
380 - implement a workaround for (some) perl <5.8.8 versions.
381 - require EV 3.3+.
382
3834.741 Fri May 30 23:33:09 CEST 2008
384 - tell netbsd how utterly broken their imitation of an OS is
385 and refuse to build by default if pthreads are in use.
386 - switch to "s" method on all bsd's by default, as their ucontext
387 stuff seems just too broken.
388 - fix a bug in Coro::Select.
389
3904.74 Thu May 29 20:05:31 CEST 2008
391 - do not test Coro::LWP for lack of dependencies.
392 - do not test Coro::Select for lack of working perls.
393
3944.73 Thu May 29 2008
395 - fix a bug in Coro::EV which would cause it to block despite
396 there being runnable coroutines.
397 - sprinkle "no warnings" freely over everything, also suppress
398 warnings for some other modules.
399 - fix typo in WSAEWOULDBLOCK.
400
4014.72 Sun May 25 05:14:36 CEST 2008
402 - tweak META.yaml a bit, unfortunately, there is no documented way
403 to have optional dependencies with CPAN. doh :(
404 - avoid running some tests on windows because they would fail due to
405 perl bug (broken fork, broken pipes...).
406 - work around perl on windows bugs where perl returns undocumented
407 error codes for sysread, syswrite etc. by taking advantage
408 of AnyEvent's workaround for that problem.
409 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
410 a common perl implementation bug on windows.
411 - use unix domain sockets in testsuite to work around
412 common perl implementation bugs on widows (they are emulated by
413 tcp sockets on windows. ugh.)
414
4154.71 Sat May 24 20:01:27 CEST 2008
416 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
417 - take advantage of async name resolution of AnyEvent::Util.
418 - work around brutal inet_aton override in Coro::LWP.
419 - take advantage of the readyhook in Coro::EV, for smoother
420 scheduling.
421
4224.7 Sun May 11 00:32:19 CEST 2008
423 - completely reworked the Coro manpage.
424 - added Coro::AnyEvent, generic event loop integration.
425 - implement cancel, ready and kill commands in Coro::Debug.
426 - document find_coro in Coro::Debug.
427 - incompatible change: rename has_stack to has_cctx.
428 - Coro::AIO and Coro::BDB no longer force event model detection,
429 use AnyEvent::AIO and AnyEvent::BDB.
430
4314.6 Sat Apr 26 10:05:14 CEST 2008
432 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
433 by the Coro module. It was a mistake to have it in the first place.
434 - (experimental) support for activestate perl 5.10 (method "w").
435 - (experimental) support for strawberry perl (method "a").
436 - coro_sigelem_set did not return a value although it had to,
437 actual impact unknown.
438
4394.51 Mon Apr 14 13:28:27 CEST 2008
440 - make it compile again on 5.8.
441
4424.50 Thu Apr 10 09:43:17 CEST 2008
443 - I did it twice! (see 4.49).
444
4454.49 Sun Apr 6 21:23:31 CEST 2008
446 - grr, instead of compiling the recent changes on 5.10 only they
447 were compiled on 5.8 only.
448
4494.48 Sun Apr 6 20:36:46 CEST 2008
450 - allow coroutine switches during eval's under 5.10.x, as it seems
451 the parser is a per-interpreter option now, so this is safe
452 (this might fix the odd crashing bug).
453 - drop support for 5.9.x versions: they are dead, jim.
454
4554.47 Sun Apr 6 00:37:52 CEST 2008
456 - force cctx allocation on API calls: we know we need to force one
457 and gcc actually manages to confuse our heuristic nowadays,
458 leading to crashes and worse.
459 - document force_cctx.
460
4614.46 Fri Apr 4 22:05:43 CEST 2008
462 - upgrade libcoro, resulting in pthread-backend (which was only created
463 to fulfill the rules of the programming languages shootout).
464
4654.45 Thu Mar 13 11:55:36 CET 2008
466 - fix a file leaking bug in eg/mhyttpd that would allow
467 downloading of any file (reported by oesi).
468 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
469 (also add testcase).
470 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
471 apparently having loads of fun with that).
472 - implement $state->swap_defsv, ->swap_defav and document ->throw.
473
4744.4 Wed Feb 13 16:44:29 CET 2008
475 - only assume .cfi pseudo isns exist on GNU/Linux.
476 - add get_timed method to Coro::Channels.
477 - fixed Coro::Debug manpage.
478 - perl 5.11 compatbility improvement based on patch by
479 Andreas König.
480
4814.37 Sun Jan 20 11:25:23 CET 2008
482 - soften the check for an active parser for perl 5.10 (avoiding
483 "Coro::State::transfer called while parsing" in many cases).
484
4854.36 Sun Jan 13 10:53:56 CET 2008
486 - reset diehook when terminating from an async_pool as to not
487 trigger any __DIE__ handlers.
488
4894.35 Sun Jan 13 04:14:13 CET 2008
490 - "bt" debug command now displays any exceptions
491 from longmess and also skips the innermost
492 stackframes, giving more useufl output.
493 - allow backtraces in coroutines blocked in Coro::EV,
494 at a <1% speed hit.
495 - handle localising of $SIG{__WARN__} and __DIE__
496 properly (with a proper amount of dirty hacking).
497
4984.34 Sat Dec 22 17:49:53 CET 2007
499 - upgrade to EV version 2.0 API.
500
5014.33 Mon Dec 17 08:36:12 CET 2007
502 - make Coro::AIO etc. loadable in the absence of EV.
503
5044.32 Mon Dec 17 07:46:02 CET 2007
505 - majorly improved Coro::Handle's performance with Coro::EV.
506 - implemented the until now mythical Coro::BDB module.
507 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
508
5094.31 Wed Dec 5 12:32:39 CET 2007
510 - remove warn statement form Coro::Util.
511
5124.3 Tue Dec 4 20:33:14 CET 2007
513 - calls to the idle function could cause stack corruption
514 when the stack changed.
515 - do no longer rely on the presence of EV::DNS if EV is used
516 (because it is gone), but instead take avdantage of EV::ADNS
517 if available.
518 - add ($) prototypes to all functions in Coro::Storable.
519 - use a conventional (safer) idle callback in Coro::EV.
520 - do accept quickly in Coro::Debug to avoid endless loops.
521
5224.22 Fri Nov 30 16:04:04 CET 2007
523 - really use optimised versions for Event and EV in Coro::Util
524 and Coro::Handle.
525
5264.21 Sun Nov 25 10:48:59 CET 2007
527 - fix a spurious memory read.
528 - Coro::EV no longer keeps the eventloop "alive".
529
5304.2 Fri Nov 9 20:47:05 CET 2007
531 - enable/disable tracing from a new coroutine, not a pooled one.
532 - fix a memleak in Coro::Event.
533 - removed killall call from fork_eval.
534 - made sure store_fd is already loaded so that fork_eval
535 does not have to parse autoload in each subprocess.
536 - only use assembly method if -O switch is in $Config{optimize}.
537 - add (optional) Coro::EV module, so far the best event loop module
538 directly supported by Coro.
539 - if the event model is EV, use EV::DNS to resolve
540 stuff in Coro::Util.
541 - don't get confused by multiple event notifications in Coro::Handle.
542 - initial support for EV (libevent interface).
543 - require Event and EV using configure_requires, to force their existance.
544
5454.13 Wed Oct 24 07:26:45 CEST 2007
546 - add Coro::Storable::blocking_thaw.
547 - use a vastly more complicated technique to localise
548 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
549 - use a coroutine for the idle callback Coro::Event,
550 instead of running Event in the current coroutine context.
551 This also catches recursive invocations.
552 - actually report fork errors in gethostbyname and inet_aton.
553
5544.11 Thu Oct 11 02:40:24 CEST 2007
555 - port to threaded perls.
556
5574.1 Thu Oct 11 02:38:16 CEST 2007
558 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
559 be local to each coro (see Coro::State).
560 - incompatible change: for very deep reasons, cede and cede_notself
561 cannot return anything, so nothing will be returned.
562 - possibly bring back 5.10 compatibility (untested).
563 - work around stupid (and wrong) warning on 5.10 :(.
564 - overlay the saved state over the context stack. This saves
565 a few hundred bytes per coroutine on average and also
566 speeds up context switching a bit.
567 - further tune default stack sizes.
568 - (more) correctly calculate stack usage in coro_rss.
569 - Coro::Storable::blocking_* did not properly lock
570 resulting in races between coroutines.
571 - added Coro::Storable::guard.
572 - stopping to trace a coroutine could destroy the cctx of
573 an unrelated coroutine.
574 - explain the relationship between Perl and C coroutines in
575 more detail in Coro::State.
576 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
577 causing a fork per resolve. This also affected Coro::Socket.
578 - switch to a separate stack in $coro->call/eval to avoid
579 invalidating pointers.
580
5814.03 Sat Oct 6 21:24:00 CEST 2007
582 - added Coro::throw method.
583 - minor code cleanups.
584
5854.02 Sat Oct 6 02:36:47 CEST 2007
586 - fix a very minor per-coroutine memleak (a single codereference).
587 - fixed a bug where the currently in-use c context would be freed
588 prematurely (can happen only when programs change the stacksize
589 or use tracing).
590 - tracing can no longer keep a coro alive after it terminated.
591 - do static branch prediction in the common path for gcc. gives
592 about 2-5% speed improvement here.
593
5944.01 Fri Oct 5 22:10:49 CEST 2007
595 - instead of recreating *a* standard output handle we simply
596 use STDOUT, which is faster and hopefully more robust.
597
5984.0 Fri Oct 5 12:56:00 CEST 2007
599 - incompatibly changed Coro::Storable::freeze.
600 - major new feature: added Coro::Debug, for interactive coroutine
601 debugging, tracing and much more.
602 - major bug fix: unbelievable, but true: $_, $/ and many other
603 "saved" variables actually weren't being saved. This has been fixed,
604 of course, while increasing performance while losing all the save
605 flags.
606 - save flags are gone, and all the api functions dealing with them.
607 - added Coro::Semaphore::adjust.
608 - added Coro::Util::fork_eval.
609 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
610 - added Coro::killall.
611 - reduce initial stack sizes to allow for "micro-coroutines".
612 - better async_pool resource management, moved parts of async_pool
613 handling to XS (major speed improvement).
614 - actually croak before modifying important data structures.
615 - refuse to transfer while compiling.
616 - possibly support eval EXPR better now.
617 - enable assembly per default on linux+bsd x86+amd64.
618 - all internal members were renamed _something for easier subclassing.
619 - many minor tweaks.
620
6213.63 Wed May 16 14:10:06 CEST 2007
622 - implement handcoded assembly for x86/amd64 SVR ABI.
623
6243.62 Fri Apr 27 21:36:06 CEST 2007
625 - upgrade libcoro (which might set unwind info correctly).
626 - change default on linux to setjmp/longjmp.
627
6283.61 Thu Apr 19 12:36:18 CEST 2007
629 - Coro::Storable caused an endless loop when thawing invalid
630 pst's sometimes.
631 - use a Semaphore in Coro::Storable, as Storable doesn't
632 seem to be reentrant (although it is documented to
633 be threadsafe...).
634 - fix Coro::Signal to bring back the original unreliable
635 but stateful semantics.
636 - fixed a lot of typos in Coro.pm (patch submitted by David
637 Steinbrunner, which applied flawlessly).
638
6393.6 Sat Apr 14 17:13:31 CEST 2007
640 - added some bugfixes to get eg/myhttpd working again.
641 - added Coro::Storable for often-cede'ing freeze/thaw.
642 - try to do a clean exit when a coroutine calls exit
643 (EXPERIMENTAL).
644 - got rid of indirect call through _coro_init.
645 - updated the partly antique examples in eg/ to
646 work again and be a bit less magic, too.
647 - fixed Coro::Signal semantics to work as documented again.
648
6493.55 Sun Mar 25 01:20:47 CET 2007
650 - add SAVE_DEFFH to save the default filehandle and enable
651 it by default.
652 - finally move socket-operations from Coro::Socket to Coro::Handle
653 to be able to unblock foreign sockets.
654 - add Coro::State::save_also and guarded_save.
655 - add count accessor to Coro::Semaphore.
656 - add Coro::State::cctx_stacksize.
657 - just for the fun of it, do not rely on implicit context,
658 which can dramatically improve performance, but people
659 using windows-process-emulation perls do not care much about
660 performance.
661
6623.51 Sun Mar 4 14:18:04 CET 2007
663 - fixed a problem when you weakened references to Coro::State's
664 (patch by Yuval Kogman).
665
6663.501 Wed Feb 28 12:44:07 CET 2007
667 - rename some global symbols as macosx from hell redefines
668 them without asking.
669
6703.5 Tue Feb 13 20:22:53 CET 2007
671 - do AnyEvent model detection earlier, avoiding problems
672 caused by first using AnyEvent and later Coro::Event.
673 - implement and document Coro::Event event objects.
674 - fix a potential problem in Coro::Event causing crashes.
675 - initialise PL_comppad when creating a new coroutine,
676 avoids crashes on early coro destruction.
677
6783.41 Mon Jan 22 19:19:49 CET 2007
679 - readline on Coro::Handle did not support undefined $/,
680 nor did it deliver partial lines on EOF or error.
681 - implement malloc fallback for stack allocation because
682 stupid broken idiotic OSX has a stupid broken
683 idiotic fits-the-whole-os mmap "implementation" and
684 my dick feels longer if Coro is portable even to
685 obsolete platforms.
686
6873.4 Fri Jan 19 21:52:54 CET 2007
688 - remove t/09_timer.t, as it isn't really testing much
689 but was rather flaky in practise.
690 - async_pool coro would keep arguments and callback alive until
691 it was reused.
692 - cancellation of a coroutine could cause spurious idle calls
693 in cede_notself.
694
6953.3 Sat Jan 6 03:45:00 CET 2007
696 - implement $coro->on_destroy.
697 - Coro::Event blocking semantics have been changed,
698 documented and - hopefully - improved.
699 - fix nice adding, not subtracting, from priority.
700 - fix ->prio and api_is_ready (patch by Mark Hinds).
701 - fixed an assert ("... == prev__cctx->idle_te")
702 that could errronously trigger.
703 - fix various large and small memleaks.
704 - use a (hopefully) more stable cancel implementation
705 that immediately frees the coroutine data.
706 - cede/cede_notself return a status now.
707 - added Coro::guard function.
708 - added a global coroutine pool for jobs (on my machine,
709 I can create and execute 48k simple coros/s with async,
710 and 128k coros with async_pool).
711 - Coro::AIO now uses the coroutine priority as io priority.
712
7133.2 Fri Dec 22 05:07:09 CET 2006
714 - improve portability to slightly older perls.
715 - use cleaner coroutine destruction.
716 - simplify configuration for users.
717 - optionally (unrecommended) prefer perl functions over
718 their coro replacements.
719
7203.11 Tue Dec 5 13:11:24 CET 2006
721 - fixed some bogus assert's, but as perl.h disables assert even
722 without NDEBUG (thank you very much), not too many people should
723 notice (that did include myself). Andreas König noticed, though :)
724 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
725 it. Also noticed by Andreas König :)
726 - save/restore tainted status.
727 - verified to pass the testsuite on my 5.9.5.
728
7293.1 Mon Dec 4 23:03:40 CET 2006
730 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
731 - incompatible change: transfer flags are now per-state.
732 - give a better error message on deadlock.
733 - document Coro::nready.
734 - enhanced testsuite.
735
7363.01 Sun Dec 3 23:47:42 CET 2006
737 - forgot to include Coro::Timer.
738
7393.0 Sun Dec 3 22:57:25 CET 2006
740 - the "FINALLY COMPLETELY STABLE" release (coming soon:
741 the "FAMOUS LAST WORDS" release).
742 - implement a new stack sharing algorithm, which uses a stack
743 pool (size currently hardcoded).
744 - make stack sharing mandatory (it no longer uses a heuristic).
745 - eval/die no longer cause weird problems under heavy use.
746 - Coro::Event could cause livelocks if it was used but
747 no Coro::Event watchers were used.
748 - Coro::Event now uses asynccheck as prepare does not
749 check for changed watchers.
750 - Coro::Event allows multiple waiting coros and will wake up one
751 per event.
752 - Coro::Event should be cleaner and more efficient now.
753 - new utility function Coro::unblock_sub.
754 - document the sad fact that Event is no longer reentrant.
755 - putting a coroutine into the ready queue twice could under
756 some circumstances lead to stack corruption.
757 - minor incompatibility: subclassing Coro::State is supported
758 directly now without going through a _coro_state member.
759 - state/coro switching is much faster now.
760 - very minor optimisations and code/documentation cleanup.
761 - avoid problems due to compiler inlining.
762 - removed timers from Coro::Timer -> use AnyEvent instead.
763 - replaced Coro::idle coroutine by (cleaner) idle handler.
764 - updated to newest libcoro.
765 - implement enhanced support for valgrind.
766 - implement is_ready and return value for ready.
767 - removed Coro::Cont, it was a misnomer (it's generators),
768 and it was somewhat annoying to get it right. Will come back
769 if somebody asks for it :)
770 - many ->wait methods and Coro::Event could return
771 spuriously without the event having happened.
772
7732.5 Tue Nov 7 12:22:33 CET 2006
774 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
775 use AnyEvent, moved them to Coro/.
776 - added Coro::LWP which contains all the uglyness required to
777 make LWP non-blocking.
778 - should work with perl 5.9.x now (Andreas König made me do it).
779 - fixed another bug in Coro::Select when the timeout was undef.
780 - reuse PL_start_env for all coros, saves some memory per coroutine.
781 - manage PL_top_env differently, hopefully to avoid panic: top_env.
782 - timeout argument was not properly used in Coro::Socket.
783 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
784 - emulate undocumented(!) functionality of IO::Socket required
785 by LWP(!!).
786 - updated eg/lwp to work with newer lwp's.
787 - remove "FATAL: uncaught exception" prefix. Coroutines that die
788 kill the whole process, just as exceptions in the main "coroutine"
789 did already.
790
7912.1 Wed Nov 1 23:01:13 CET 2006
792 - fix a long-standing bug in Coro::Select where select with
793 zero timeout would instead change the current default filehandle.
794 - use a simpler and hopefully more robust way to clone padlists
795 (uses less memory and a perl function instead of our own).
796 - coro can now create a stack guard area on many architectures.
797 - Coro::AIO properly reexports additional functions from IO::AIO.
798 - updated libcoro with a workaround for OS X,
799 pach and testing by Michael Schwern.
800
8012.0 Tue Oct 24 05:47:17 CEST 2006
802 - support additional aio requests in Coro::AIO.
803
8041.9 (never properly released due to a glitch)
805
8061.8 Thu Feb 2 00:59:06 CET 2006
807 - applied suggested patch by SAMV to avoid problems during stupid
808 mark & sweep gc run.
809 - applied patch by Scott Walters for 5.9.3 compatibility.
810
8111.7 Tue Dec 27 01:41:58 CET 2005
812 - added Coro::AIO, a thin wrapper around IO::AIO.
813 - improved Makefile.PL explanations.
814
8151.6 Mon Dec 12 21:30:05 CET 2005
816 - additionally save PM_curpm might fix as-of-yet
817 unseen problems with regex matches being attributed to the
818 wrong package.
819 - add t/10_bugs.t, which currently checks against imho broken
820 perls that use 0.26MB of stack space per Perl_magic_get
821 invocation (newer linuxes) as opposed to the 0.0002MB perl
822 normally uses.
823 - make stacksize configurable for the ultimate debian experience.
824
8251.51 Mon Dec 12 18:48:36 CET 2005
826 - remove debugging warn() accidentally left in Coro::Select.
827
8281.5 Tue Nov 29 13:32:44 CET 2005
4 - use Coro::Event inside Coro::Select to avoid spurious deadlocks. 829 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
830 - fix Coro::Select 'select'.
831 - strict'ify some modules.
5 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1. 832 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
833 - use XSLoader in selected modules.
834 - remove some 5.6 compatibility cruft.
6 835
71.4 Tue Sep 6 00:11:05 CEST 2005 8361.4 Tue Sep 6 00:11:05 CEST 2005
8 - libcoro did not take into account the trampoline on amd64, 837 - libcoro did not take into account the trampoline on amd64,
9 when 'l'inux method was used. 838 when 'l'inux method was used.
10 839

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