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Comparing Coro/Changes (file contents):
Revision 1.85 by pcg, Sun Nov 23 03:34:13 2003 UTC vs.
Revision 1.583 by root, Wed Aug 3 15:16:34 2011 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2
3TODO: should explore PerlIO::coroaio (perl leaks like hell).
4TODO: channel->maxsize(newsize)?
5TODO: http://www.microsoft.com/msj/archive/s2ce.aspx
6
76.04 Wed Aug 3 17:15:45 CEST 2011
8 - use even more efficient and more compatible condvars for
9 compatibility to AnyEvent 6.x :)
10 - more inconsequential ecb.h updates.
11
126.03 Wed Aug 3 11:41:30 CEST 2011
13 - change how Coro patches AnyEvent condvars for compatibility to
14 AnyEvent 6.x.
15 - update ecb.h, to no longer include <pthread.h> in case WinNT.h
16 hasn't been included.
17
186.02 Wed Jul 13 04:35:19 CEST 2011
19 - "improve portability to Gentoo" - gentoo manages to put perl variables
20 in memory areas that are farther than 2gb apart, which the jit couldn't
21 handle and barfed. now it's just a bit slower on gentoo and similar
22 systems.
23
246.01 Sun Jul 3 12:31:14 CEST 2011
25 - workarounds are good, but the test for whether pthreads are used
26 was not good. thisone should be better.
27 - check differently whether gcc generates cfi instructions itself.
28
296.0 Wed Jun 29 19:43:35 CEST 2011
30 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
31 destroyed and cleaned up automatically (e.g. async { schedule }).
32 - implement a JIT compiler for part of the thread switch code,
33 which gives a 50% speed improvement on threaded perls, and
34 about 4% on non-thraeded perls (so threaded perls now finally
35 reach about half the speed of non-threaded perls).
36 - slightly modernise Coro::Intro, add section about rouse functions.
37 - avoid DEFSV and ERRSV, giving another 10% improvement
38 in thread switching.
39 - Coro::State->is_destroyed is now called is_zombie.
40 - implement a Coro->safe_cancel method that might fail, but
41 cancels in a "safer" way if it succeeds.
42 - add preliminary support for DEBUGGING perls.
43 - get rid of two hash-accesses when initialising a new Coro - this
44 speeds up coro creation by almost a factor of two.
45 - croak when a coro that is being cancelled tries to block
46 (e.g. while executing a guard block), instead of crashing or
47 deadlocking.
48 - use a more robust and also faster method to identify Coro::State
49 objects - speeds up everything a bit.
50 - implement Coro->cancel in XS for a 20% speed improvement, and to
51 be able to implement mutual cancellation.
52 - speed up context switches by a percent or two by more efficiently
53 allocating context stack entries.
54 - implement Coro->join and Coro->on_destroy in XS for a speedup and
55 a reduction in memory use.
56 - cancelling a coro while it itself is cancelling another coro is
57 now supported and working, instead of triggering an assertion.
58 - be a bit more crash-resistant when calling (buggy) on_destroy
59 callbacks (best effort).
60 - move on_destroy into the slf_frame, to allow extension slf
61 functions to have destructors.
62 - get rid if coro refcounting - simply crash in other interpreter
63 threads by nulling the pointers on clone.
64 - simplify warn/die hook handling when loading Coro - the convoluted
65 logic seems to be no longer neccessary.
66 - use libecb instead of our own home-grown gcc hacks.
67 - document alternatives to Coro::LWP. Please use them :)
68 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
69 sigaltstack. Really. wine suffers from it, erlang suffers from it,
70 and it's known since at least 2006.
71
725.372 Wed Feb 23 06:14:30 CET 2011
73 - apparently mingw doesn't provide a working gettimeofday, try to
74 work around that by relying on Time::HiRes (indirectly brought to
75 my attention by Max Maischein).
76 - fix some portability issues when Time::HiRes was used.
77
785.371 Mon Feb 21 14:36:08 CET 2011
79 - backport to windows process emulation code again.
80
815.37 Sat Feb 19 07:49:44 CET 2011
82 - add a big "Coro thread life cycle" section to "man Coro".
83 - try a tentative workaround against the breakage that 5.13 has
84 introduced without depreciation period. sigh.
85 - no longer use Time::HiRes if gettimeofday is available, which
86 saves quite a lot of memory.
87
885.36 Sun Feb 13 05:33:41 CET 2011
89 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
90 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
91 method call.
92 - undocument Coro::Timer::sleep and obsolete whole module.
93 - optimise Coro::Timer::timeout memory and cpu usage.
94 - slightly updated Coro::Intro for recent changes.
95 - do not initialise PL_dirty anymore.
96
975.25 Thu Nov 11 01:08:39 CET 2010
98 - try a different approach on netbsd - netbsd 5 finally has marginally
99 working pthreads, but still broken ucontext/sigaltstack.
100 - openbsd 4.8 finally got their act together, Coro works out of the box
101 with asm, setjmp and pthreads (no change, just informational).
102
1035.24 Sat Oct 23 11:27:12 CEST 2010
104 - port to the EV 4.0 API.
105 - work around bugs in mingw32, making strawberry perl work
106 out of the box.
107 - correctly modify Coro::AIO function prototypes
108 so that they reflect the "no optional parameters" rule.
109 - "ported" libcoro to C++.
110
1115.23 Mon May 17 18:50:42 CEST 2010
112 - be more resistant to ordering changes when initialising
113 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
114 Waldorf).
115 - document that perl 5.12 deliberately removed support for cloning.
116
1175.22 Wed Apr 14 03:55:35 CEST 2010
118 - correctly return udnef on errors in Coro::Handle::read/write
119 (testcase by Marc Mims).
120 - convert Coro::Util into a "perl compatibility wrapper" - the functions
121 are less useful now, but are drop-in replacements for existing
122 functions, listing better alternatives in the documentation. This also
123 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
124 with Coro::Util::inet_aton.
125 - do not override $Coro::idle unconditionally in Coro.pm, as other
126 modules could have provided their own idle coro already
127 (for exmaple, Coro::AnyEvent).
128 - fix Coro::Util::gethost* functions.
129 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
130
1315.21 Wed Dec 16 07:19:51 CET 2009
132 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
133 together.
134 - add some examples on how to combine other event loops with Coro in
135 Coro::AnyEvent, and how to run it (and not to block). Seems to be
136 the most common source of confusion.
137 - try to catch people naively blocking in an event callback.
138 - work around the perl filehandle bug issue in conjunction with
139 older common::sense (as indirectly pointed out by ZSystem).
140 - clarify the "not from signal handlers" section.
141
1425.2 Sun Oct 4 14:54:24 CEST 2009
143 - Coro::Storable destroyed the prototypes of the functions it wrapped.
144 - export rouse_cb and rouse_wait by default now.
145 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
146 - new method $state->swap_sv.
147 - added section on "windows process emulation" to the manpage,
148 after a not-so-fruitful (nor-friendly) "discussion" with chip
149 salzenberg (discussion implies arguments, but his only arguments
150 were ad-hominems, one wonders why he started it in the first
151 place). I hope this explains it well enough for him to understand,
152 and maybe well enough for others to understand.
153 - use common::sense everywhere now.
154 - idle callbacks are no longer supported, use idle coros instead.
155 - print a thread listing when a deadlock is detected.
156
1575.17 Sat Aug 22 23:09:31 CEST 2009
158 - work around a bug in the perl debugger causing crashes
159 when running under the debugger by marking _pool_handler as nodebug.
160 - speed up Coro::async considerably.
161 - try some hacks to get netbsd to work "more often" - their broken
162 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
163 - convert Coro to AE 5.0 API.
164
1655.162 Tue Jul 28 04:04:03 CEST 2009
166 - perl 5.8.2 is now minimum requirement.
167 - skip t/19_handle.t on broken windows perls.
168
1695.161 Wed Jul 22 04:47:38 CEST 2009
170 - Coro::AnyEvent::poll could have a different prototype when EV was
171 used as backend (analyzed by Tatsuhiko Miyagawa).
172 - Coro::AnyEvent errornously initialised the event loop when loaded,
173 not on demand.
174 - try to workaround rare */t/01_unblock.t failures.
175
1765.16 Tue Jul 21 01:44:37 CEST 2009
177 - Coro::AnyEvent failed to hook into the event loop
178 when no threads had been readied between detecting
179 the event loop and actually running it.
180 - considerably speed up Coro::Select by taking avdantage
181 of AnyEvent > 4.8 and some other optimisations.
182 - implement paragraph readline mode in Coro::Handle
183 (based on patches by Zsbán Ambrus).
184 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
185 and analyzed by Yasuhiro MATSUMOTO).
186 - clarified libcoro license and copyright.
187 - someone stole my EXTRA_META!!!
188 - implement Coro::Select::patch_pp_sselect and it's brother,
189 for hardcode select overriding.
190
1915.151 Mon Jul 6 05:41:57 CEST 2009
192 - backport to windows process emulation code again (patch by
193 Yasuhiro MATSUMOTO).
194 - slightly update Coro::MakeMaker.
195
1965.15 Tue Jun 30 10:28:06 CEST 2009
197 - deprecate Coro::Socket, document how to get ipv6 support via
198 AnyEvent::Socket instead.
199 - implement signal->wait ($cb) interface, similar to semaphores.
200 - work around SvOK not supporting getmagic, so we have to getmagic
201 to test for undef :/ (reported by Matthias Waldorf).
202 - load Coro::AnyEvent in all modules using AnyEvent.
203 - work around perl corrupting our internal data structures,
204 reported by Tokuhiro Matsuno.
205 - enable per-coroutine real and cpu time gathering
206 (Coro::State::enable_times).
207
2085.14 Wed Jun 24 01:37:48 CEST 2009
209 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
210 as this seems to have been a difficult concept (poll, sleep, idle,
211 idle_upto).
212 - add Coro::AnyEvent::readable/writable functions.
213 - clarify Coro::EV/Event/AnyEvent manpages.
214 - free per-thread global scalars in the thread calling ->cancel, to
215 avoid crashes when $_, $@ etc., are magical but some of those
216 had already been freed.
217 - "unexperimentalise" the callback interface for Coro::Semaphore.
218 - speed up ready queue management/context switching by using a linked
219 list instead of an array (~5-10%).
220 - implement "watch" command in Coro::Debug shells.
221 - for fun, implement time-slicing as an example in the manpage.
222 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
223 Coro::Event, use the normal AnyEvent handling instead of dieing
224 (the same is true for Coro::Handle).
225 - properly document Coro::EV::timed_io_once.
226 - avoid unneccessary ->cancel calls in Coro::Handle.
227 - maybe make it work on mingw32 with win32 backend
228 (based on patch by Yasuhiro Matsumoto).
229
2305.132 Fri May 29 09:00:39 CEST 2009
231 - do not keep a reference to the argument itself in
232 Coro::Semaphore::guard, as it could change later.
233 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
234 should support a prepare callback.
235
2365.131 Mon Mar 16 23:20:37 CET 2009
237 - implement and document Coro->suspend, Coro->resume.
238 - fix Coro::Select implementation to not (often) close
239 the passed file descriptors (testcase provided by pippijn).
240
2415.13 Mon Dec 15 21:51:42 CET 2008
242 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
243 - don't set diehook to C<undef> but instead to NULL, to avoid
244 spurious warnings.
245 - fix a lot of bugs in Coro::SemaphoreSet.
246 - Coro::SemaphoreSet will less often create a semaphore needlessly.
247 - add Coro::SemaphoreSet::count and wait methods.
248 - take advantage of the new Guard module.
249 - deprecate Coro::guard.
250 - try to fix the dreaded 01_unblock tests once more. I hate it when
251 testsuites need more fixing than the code they are supposed to test.
252 - croak in more cases when a required callback isn't resolvable.
253 - fix some minor issues in Coro::State->call/eval.
254 - use current coroutine context instead of a temporary one
255 when temporarily switching to another coroutine.
256 - do not call C-level on_destroy handlers during global destruction,
257 to avoid needless segfaults.
258
2595.12 Sun Dec 7 13:30:38 CET 2008
260 - add default config for MirOS, which seems to be a bug-to-bug
261 compatible fork of openbsd ("world domination by releasing
262 openbsd cvs before the openbsd folks do it" or so :).
263 - free_padlist did destroy the names pad, not good, but didn't
264 seem to bother perl - this could fix issues such as eval ""
265 inside a function called from multiple coroutines.
266 - use a different method to detect destruction time.
267 - be more careful when freeing padlists just before global
268 destruction.
269 - fixed and expanded the call/cc example.
270 - renamed _terminate to _coro_run.
271 - new method Coro::Channel->shutdown.
272 - try pthreads on openbsd <4.4 (broken sigaltstack, will
273 pthreads fare better?).
274 - be less picky about destroying "a" running coroutine.
275
2765.11 Tue Nov 25 21:49:05 CET 2008
277 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
278 working code with failed assertions, introducing more bugs than
279 it fixes, requiring elaborate workarounds :(
280
2815.1 Mon Nov 24 08:54:59 CET 2008
282 - wrote a small introductory tutorial - Coro::Intro.
283 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
284 - Coro::Select did errornously dup the file descriptors
285 and didn't work with all AnyEvent backends.
286 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
287 LWP data transfers.
288 - disassociate c contexts from coro objects - this is agruably more
289 correct, but mostly allows sharing of cctxs between coro and state
290 objects, for added memory savings and speed increases.
291 - bumped $Coro::POOL_RSS up to 32kb by default.
292 - no longer set the optype to OP_CUSTOM, as B::* understandably
293 doesn't like this very much (and we *are* a type of entersub).
294 - implement state cloning, just to prove that call/cc can be done.
295 - automatically load Coro::AnyEvent in Coro::Handle.
296 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
297 do not have this method (and don't need it either).
298 - speed up generic anyevent methods in Coro::Handle by using rouse
299 callbacks.
300 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
301 others. It also makes the debugger happier, as you can trace
302 through the idle threads now.
303 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
304 - eg/event was pretty broken.
305 - better 5.8.6 compatibility.
306
3075.0 Thu Nov 20 10:35:05 CET 2008
308 - NEW ARCHITECTURE: use the latest 4.x version if you experience
309 stability issues.
310 - bump API version to 7 - all dependents must be recompiled.
311 - removed timed_* functions - they were not being used anyways
312 and should be replaced by a more generic mechanism -
313 and were annoying to support anyways :)
314 - removed SemaphoreSet's waiter method - use sem method instead.
315 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
316 - async_pool did free a scalar value twice
317 ("Attempt to unreference...").
318 - fix a longstanding bug where calling terminate on a coro that
319 was waiting for a semaphore that was just becoming available
320 would cause a deadlock (semaphore would get into a state where
321 it was available but waiters were still blocked).
322 - calling throw on a coroutine that is waiting for a semaphore will
323 no longer make it acquire the semaphore (and thus leak a count).
324 - perl's process emulation is now not even theoretically supported
325 anymore.
326 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
327 conversion of callback-style to blocking-style.
328 - new methods $coro->schedule_to and ->cede_to, to specifically
329 schedule or cede to a specific coroutine.
330 - new function Coro::Semaphore::wait.
331 - use named constants in Coro::Channel (Richard Hundt).
332 - directly patch the entersub opcode calling SLF functions (cede,
333 transfer and so on). this does speed up context switching, but
334 more importanly, it frees us from the hardcoded behaviour of
335 entersub, so we might actually be able to return something from
336 those functions and atcually create new ones.
337 - take advantage of __builtin_frame_address on gcc.
338 - expose THX in coroapi (not sure whether this was a wise decision,
339 as "threaded" perls are running at half speed anyways).
340 - implement execute_slf (schedule-like-function) interface that makes
341 it possible to implement schedule-like-functions in XS.
342 - use new SLF interface to massively speed up Coro::EV by roughly a
343 factor of two.
344 - used new SLF interface to massively speed up Coro::Semaphore by a
345 factor of three.
346 - used new SLF interface to speed up Coro::AIO by roughly a factor of
347 four and reduce its memory usage considerably.
348 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
349 for a nice speedup and vastly more correct behaviour. Also implement
350 a new method "sem" to get at the underlying semaphore object.
351 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
352 (in comparison) 20-40% speedup.
353 - used new SLF interface to reimplement Coro::Signal gaining
354 some unknown (because I was too lazy), but certain, speedup, and also
355 making signals reliable for the first time.
356 - used new SLF interface and other optimisations to speed up async_pool
357 by a factor of two. It also doesn't rely on perl's exception mechanism
358 to exit anymore. The overhead for terminating an async_pool, coro over
359 a normal async is now very small.
360 - sped up coroutine creation/destruction by 40%.
361 - forgot to include Coro/libcoro/README in the dist for all these years.
362 - work around a freebsd pthreads bug (manual testcancel is required as
363 pthread_cond_wait isn't a cancellation point on freebsd).
364 - use new rouse functions to speed up and simplify Coro::BDB.
365 - make "prefer perl native functions" work with threaded perls.
366 - condense Coro::Debug ps output, hint at v and w flags.
367 - (libcoro) lots of minor cleanups and portability improvements.
368
3694.914 Wed Nov 19 12:54:18 CET 2008
370 - fix a disastrous bug in the readline optimisation
371 introduced in 4.801.
372
3734.913 Sat Nov 15 07:58:28 CET 2008
374 - async_pool did free a scalar value twice
375 ("Attempt to unreference...").
376
3774.912 Thu Nov 13 18:31:23 CET 2008
378 - minor cleanups.
379 - use much larger stacks on linux and perl < 5.8.8.
380 - Coro::Debug::new_unix_server did not unlink the socket
381 when destroyed.
382
3834.911 Tue Nov 11 04:26:17 CET 2008
384 - "port" to threaded perls.
385
3864.91 Mon Nov 10 05:36:38 CET 2008
387 - the ->throw exception object no longer leaks.
388 - creating a new cctx leaked a scopestack entry (memleak).
389 - new coroutines didn't get created with a zero flags field
390 (unknown impact).
391 - calling ->throw on a not-yet-started coroutine should now work
392 instead of being ignored.
393 - ->throw is now supported on Coro::State objects.
394 - clean up cctx creation code a bit.
395 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
396
3974.9 Sat Nov 8 17:45:27 CET 2008
398 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
399 - (libcoro) no longer leak threads in the experimental pthread backend,
400 also speed it up considerably.
401 - (libcoro) do not rely on makecontext passing void *'s unscathed.
402 - fix compiletime dependencies on libcoro in the Makefile.
403 - cctx_count wasn't always updated properly.
404 - Coro::State::cctx_stacksize wasn't applied correctly.
405 - new function Coro::State::cctx_max_idle.
406 - the default max number of idle C contexts is now 4.
407 - (libcoro) try harder to get _setjmp/_longjmp.
408 - (libcoro) cleanup and extend the libcoro API to officially
409 allow the creation of empty source contexts.
410 - very experimental workaround for the totally broken netbsd platform.
411 - tried to hack around openbsd bugs.
412
4134.804 Wed Nov 5 16:36:00 CET 2008
414 - Coro::Debug::new_unix_server would not create a non-blocking listening
415 socket, sometimes causing freezes.
416 - (libcoro) fix misaligned stack points for setjmp and assembly
417 methods, which can cause crashes on x86/x86_64 with a sufficiently
418 aggressive compiler.
419 - new function: Coro::Debug::new_tcp_server.
420 - move ->throw into the Coro class because it only works on coro objects.
421
4224.803 Mon Nov 3 17:16:12 CET 2008
423 - (libcoro) use a global asm statement to become independent of gcc
424 otpimisations for CORO_ASM (thanks to pippijn for the idea).
425 - try to workaround yet another broken bsd, this time dragonfly.
426
4274.802 Thu Oct 30 10:56:12 CET 2008
428 - support -fno-omit-frame-pointer on x86 with the assembly method.
429 - tune 01_unblock.t tests a bit.
430
4314.801 Wed Oct 22 18:33:37 CEST 2008
432 - improve readline speed for very long "lines".
433 - backport to 5.8.8.
434
4354.8 Thu Oct 2 13:34:40 CEST 2008
436 - new function Coro::AIO::aio_wait.
437 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
438 - greatly speed up and reduce memory usage of Coro::AIO requests.
439 - implement some other µ-optimisations.
440
4414.749 Mon Sep 29 14:40:12 CEST 2008
442 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
443
4444.748 Sat Sep 27 14:03:19 CEST 2008
445 - implement, but do not document, PerlIO::cede(granularity).
446 - Coro::Storable forgot to wrap Storable::pstore.
447 - work around the multitude of leaks and memory corruption
448 bugs in PerlIO::via by using our own C-level perliol. As a side
449 effect, Coro::Storable is now much, much, much faster.
450
4514.747 Tue Sep 23 01:59:41 CEST 2008
452 - fix a per-cv memleak (one empty array was leaked per
453 code reference).
454 - avoid a crash in coro->call|rss when the coroutine was already
455 destroyed (most noticably when using Coro::Debug::ps :)
456 - also protect *Storable::FILE.
457 - push up default storable granularity to 20ms.
458
4594.746 Sun Sep 21 03:22:20 CEST 2008
460 - be more insistent on locking Storable against reentrancy
461 in Coro::Storable.
462 - move swap_def?v and throw to Coro::State, as documented.
463
4644.745 Thu Jul 24 00:14:38 CEST 2008
465 - remove debugging code related to MgPV_nolen_const, also try to
466 make it compile with perl 5.8.6 (yes, apple apparently loves
467 outdated software). Reported by John S.
468
4694.744 Tue Jul 8 22:06:35 CEST 2008
470 - correctly provide default DIE/WARN handlers as documented.
471 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
472 implementations inside perl work fine for us.
473
4744.743 Mon Jun 16 00:21:57 CEST 2008
475 - when using Coro::EV without running EV::loop it could
476 result in busy-waiting for events, this has been fixed.
477 - reduce codesize and improve performance by using EV_DEFAULT_UC.
478
4794.742 Sat May 31 14:10:21 CEST 2008
480 - implement a workaround for (some) perl <5.8.8 versions.
481 - require EV 3.3+.
482
4834.741 Fri May 30 23:33:09 CEST 2008
484 - tell netbsd how utterly broken their imitation of an OS is
485 and refuse to build by default if pthreads are in use.
486 - switch to "s" method on all bsd's by default, as their ucontext
487 stuff seems just too broken.
488 - fix a bug in Coro::Select.
489
4904.74 Thu May 29 20:05:31 CEST 2008
491 - do not test Coro::LWP for lack of dependencies.
492 - do not test Coro::Select for lack of working perls.
493
4944.73 Thu May 29 2008
495 - fix a bug in Coro::EV which would cause it to block despite
496 there being runnable coroutines.
497 - sprinkle "no warnings" freely over everything, also suppress
498 warnings for some other modules.
499 - fix typo in WSAEWOULDBLOCK.
500
5014.72 Sun May 25 05:14:36 CEST 2008
502 - tweak META.yaml a bit, unfortunately, there is no documented way
503 to have optional dependencies with CPAN. doh :(
504 - avoid running some tests on windows because they would fail due to
505 perl bug (broken fork, broken pipes...).
506 - work around perl on windows bugs where perl returns undocumented
507 error codes for sysread, syswrite etc. by taking advantage
508 of AnyEvent's workaround for that problem.
509 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
510 a common perl implementation bug on windows.
511 - use unix domain sockets in testsuite to work around
512 common perl implementation bugs on widows (they are emulated by
513 tcp sockets on windows. ugh.)
514
5154.71 Sat May 24 20:01:27 CEST 2008
516 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
517 - take advantage of async name resolution of AnyEvent::Util.
518 - work around brutal inet_aton override in Coro::LWP.
519 - take advantage of the readyhook in Coro::EV, for smoother
520 scheduling.
521
5224.7 Sun May 11 00:32:19 CEST 2008
523 - completely reworked the Coro manpage.
524 - added Coro::AnyEvent, generic event loop integration.
525 - implement cancel, ready and kill commands in Coro::Debug.
526 - document find_coro in Coro::Debug.
527 - incompatible change: rename has_stack to has_cctx.
528 - Coro::AIO and Coro::BDB no longer force event model detection,
529 use AnyEvent::AIO and AnyEvent::BDB.
530
5314.6 Sat Apr 26 10:05:14 CEST 2008
532 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
533 by the Coro module. It was a mistake to have it in the first place.
534 - (experimental) support for activestate perl 5.10 (method "w").
535 - (experimental) support for strawberry perl (method "a").
536 - coro_sigelem_set did not return a value although it had to,
537 actual impact unknown.
538
5394.51 Mon Apr 14 13:28:27 CEST 2008
540 - make it compile again on 5.8.
541
5424.50 Thu Apr 10 09:43:17 CEST 2008
543 - I did it twice! (see 4.49).
544
5454.49 Sun Apr 6 21:23:31 CEST 2008
546 - grr, instead of compiling the recent changes on 5.10 only they
547 were compiled on 5.8 only.
548
5494.48 Sun Apr 6 20:36:46 CEST 2008
550 - allow coroutine switches during eval's under 5.10.x, as it seems
551 the parser is a per-interpreter option now, so this is safe
552 (this might fix the odd crashing bug).
553 - drop support for 5.9.x versions: they are dead, jim.
554
5554.47 Sun Apr 6 00:37:52 CEST 2008
556 - force cctx allocation on API calls: we know we need to force one
557 and gcc actually manages to confuse our heuristic nowadays,
558 leading to crashes and worse.
559 - document force_cctx.
560
5614.46 Fri Apr 4 22:05:43 CEST 2008
562 - upgrade libcoro, resulting in pthread-backend (which was only created
563 to fulfill the rules of the programming languages shootout).
564
5654.45 Thu Mar 13 11:55:36 CET 2008
566 - fix a file leaking bug in eg/mhyttpd that would allow
567 downloading of any file (reported by oesi).
568 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
569 (also add testcase).
570 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
571 apparently having loads of fun with that).
572 - implement $state->swap_defsv, ->swap_defav and document ->throw.
573
5744.4 Wed Feb 13 16:44:29 CET 2008
575 - only assume .cfi pseudo isns exist on GNU/Linux.
576 - add get_timed method to Coro::Channels.
577 - fixed Coro::Debug manpage.
578 - perl 5.11 compatbility improvement based on patch by
579 Andreas König.
580
5814.37 Sun Jan 20 11:25:23 CET 2008
582 - soften the check for an active parser for perl 5.10 (avoiding
583 "Coro::State::transfer called while parsing" in many cases).
584
5854.36 Sun Jan 13 10:53:56 CET 2008
586 - reset diehook when terminating from an async_pool as to not
587 trigger any __DIE__ handlers.
588
5894.35 Sun Jan 13 04:14:13 CET 2008
590 - "bt" debug command now displays any exceptions
591 from longmess and also skips the innermost
592 stackframes, giving more useufl output.
593 - allow backtraces in coroutines blocked in Coro::EV,
594 at a <1% speed hit.
595 - handle localising of $SIG{__WARN__} and __DIE__
596 properly (with a proper amount of dirty hacking).
597
5984.34 Sat Dec 22 17:49:53 CET 2007
599 - upgrade to EV version 2.0 API.
600
6014.33 Mon Dec 17 08:36:12 CET 2007
602 - make Coro::AIO etc. loadable in the absence of EV.
603
6044.32 Mon Dec 17 07:46:02 CET 2007
605 - majorly improved Coro::Handle's performance with Coro::EV.
606 - implemented the until now mythical Coro::BDB module.
607 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
608
6094.31 Wed Dec 5 12:32:39 CET 2007
610 - remove warn statement form Coro::Util.
611
6124.3 Tue Dec 4 20:33:14 CET 2007
613 - calls to the idle function could cause stack corruption
614 when the stack changed.
615 - do no longer rely on the presence of EV::DNS if EV is used
616 (because it is gone), but instead take avdantage of EV::ADNS
617 if available.
618 - add ($) prototypes to all functions in Coro::Storable.
619 - use a conventional (safer) idle callback in Coro::EV.
620 - do accept quickly in Coro::Debug to avoid endless loops.
621
6224.22 Fri Nov 30 16:04:04 CET 2007
623 - really use optimised versions for Event and EV in Coro::Util
624 and Coro::Handle.
625
6264.21 Sun Nov 25 10:48:59 CET 2007
627 - fix a spurious memory read.
628 - Coro::EV no longer keeps the eventloop "alive".
629
6304.2 Fri Nov 9 20:47:05 CET 2007
631 - enable/disable tracing from a new coroutine, not a pooled one.
632 - fix a memleak in Coro::Event.
633 - removed killall call from fork_eval.
634 - made sure store_fd is already loaded so that fork_eval
635 does not have to parse autoload in each subprocess.
636 - only use assembly method if -O switch is in $Config{optimize}.
637 - add (optional) Coro::EV module, so far the best event loop module
638 directly supported by Coro.
639 - if the event model is EV, use EV::DNS to resolve
640 stuff in Coro::Util.
641 - don't get confused by multiple event notifications in Coro::Handle.
642 - initial support for EV (libevent interface).
643 - require Event and EV using configure_requires, to force their existance.
644
6454.13 Wed Oct 24 07:26:45 CEST 2007
646 - add Coro::Storable::blocking_thaw.
647 - use a vastly more complicated technique to localise
648 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
649 - use a coroutine for the idle callback Coro::Event,
650 instead of running Event in the current coroutine context.
651 This also catches recursive invocations.
652 - actually report fork errors in gethostbyname and inet_aton.
653
6544.11 Thu Oct 11 02:40:24 CEST 2007
655 - port to threaded perls.
656
6574.1 Thu Oct 11 02:38:16 CEST 2007
658 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
659 be local to each coro (see Coro::State).
660 - incompatible change: for very deep reasons, cede and cede_notself
661 cannot return anything, so nothing will be returned.
662 - possibly bring back 5.10 compatibility (untested).
663 - work around stupid (and wrong) warning on 5.10 :(.
664 - overlay the saved state over the context stack. This saves
665 a few hundred bytes per coroutine on average and also
666 speeds up context switching a bit.
667 - further tune default stack sizes.
668 - (more) correctly calculate stack usage in coro_rss.
669 - Coro::Storable::blocking_* did not properly lock
670 resulting in races between coroutines.
671 - added Coro::Storable::guard.
672 - stopping to trace a coroutine could destroy the cctx of
673 an unrelated coroutine.
674 - explain the relationship between Perl and C coroutines in
675 more detail in Coro::State.
676 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
677 causing a fork per resolve. This also affected Coro::Socket.
678 - switch to a separate stack in $coro->call/eval to avoid
679 invalidating pointers.
680
6814.03 Sat Oct 6 21:24:00 CEST 2007
682 - added Coro::throw method.
683 - minor code cleanups.
684
6854.02 Sat Oct 6 02:36:47 CEST 2007
686 - fix a very minor per-coroutine memleak (a single codereference).
687 - fixed a bug where the currently in-use c context would be freed
688 prematurely (can happen only when programs change the stacksize
689 or use tracing).
690 - tracing can no longer keep a coro alive after it terminated.
691 - do static branch prediction in the common path for gcc. gives
692 about 2-5% speed improvement here.
693
6944.01 Fri Oct 5 22:10:49 CEST 2007
695 - instead of recreating *a* standard output handle we simply
696 use STDOUT, which is faster and hopefully more robust.
697
6984.0 Fri Oct 5 12:56:00 CEST 2007
699 - incompatibly changed Coro::Storable::freeze.
700 - major new feature: added Coro::Debug, for interactive coroutine
701 debugging, tracing and much more.
702 - major bug fix: unbelievable, but true: $_, $/ and many other
703 "saved" variables actually weren't being saved. This has been fixed,
704 of course, while increasing performance while losing all the save
705 flags.
706 - save flags are gone, and all the api functions dealing with them.
707 - added Coro::Semaphore::adjust.
708 - added Coro::Util::fork_eval.
709 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
710 - added Coro::killall.
711 - reduce initial stack sizes to allow for "micro-coroutines".
712 - better async_pool resource management, moved parts of async_pool
713 handling to XS (major speed improvement).
714 - actually croak before modifying important data structures.
715 - refuse to transfer while compiling.
716 - possibly support eval EXPR better now.
717 - enable assembly per default on linux+bsd x86+amd64.
718 - all internal members were renamed _something for easier subclassing.
719 - many minor tweaks.
720
7213.63 Wed May 16 14:10:06 CEST 2007
722 - implement handcoded assembly for x86/amd64 SVR ABI.
723
7243.62 Fri Apr 27 21:36:06 CEST 2007
725 - upgrade libcoro (which might set unwind info correctly).
726 - change default on linux to setjmp/longjmp.
727
7283.61 Thu Apr 19 12:36:18 CEST 2007
729 - Coro::Storable caused an endless loop when thawing invalid
730 pst's sometimes.
731 - use a Semaphore in Coro::Storable, as Storable doesn't
732 seem to be reentrant (although it is documented to
733 be threadsafe...).
734 - fix Coro::Signal to bring back the original unreliable
735 but stateful semantics.
736 - fixed a lot of typos in Coro.pm (patch submitted by David
737 Steinbrunner, which applied flawlessly).
738
7393.6 Sat Apr 14 17:13:31 CEST 2007
740 - added some bugfixes to get eg/myhttpd working again.
741 - added Coro::Storable for often-cede'ing freeze/thaw.
742 - try to do a clean exit when a coroutine calls exit
743 (EXPERIMENTAL).
744 - got rid of indirect call through _coro_init.
745 - updated the partly antique examples in eg/ to
746 work again and be a bit less magic, too.
747 - fixed Coro::Signal semantics to work as documented again.
748
7493.55 Sun Mar 25 01:20:47 CET 2007
750 - add SAVE_DEFFH to save the default filehandle and enable
751 it by default.
752 - finally move socket-operations from Coro::Socket to Coro::Handle
753 to be able to unblock foreign sockets.
754 - add Coro::State::save_also and guarded_save.
755 - add count accessor to Coro::Semaphore.
756 - add Coro::State::cctx_stacksize.
757 - just for the fun of it, do not rely on implicit context,
758 which can dramatically improve performance, but people
759 using windows-process-emulation perls do not care much about
760 performance.
761
7623.51 Sun Mar 4 14:18:04 CET 2007
763 - fixed a problem when you weakened references to Coro::State's
764 (patch by Yuval Kogman).
765
7663.501 Wed Feb 28 12:44:07 CET 2007
767 - rename some global symbols as macosx from hell redefines
768 them without asking.
769
7703.5 Tue Feb 13 20:22:53 CET 2007
771 - do AnyEvent model detection earlier, avoiding problems
772 caused by first using AnyEvent and later Coro::Event.
773 - implement and document Coro::Event event objects.
774 - fix a potential problem in Coro::Event causing crashes.
775 - initialise PL_comppad when creating a new coroutine,
776 avoids crashes on early coro destruction.
777
7783.41 Mon Jan 22 19:19:49 CET 2007
779 - readline on Coro::Handle did not support undefined $/,
780 nor did it deliver partial lines on EOF or error.
781 - implement malloc fallback for stack allocation because
782 stupid broken idiotic OSX has a stupid broken
783 idiotic fits-the-whole-os mmap "implementation" and
784 my dick feels longer if Coro is portable even to
785 obsolete platforms.
786
7873.4 Fri Jan 19 21:52:54 CET 2007
788 - remove t/09_timer.t, as it isn't really testing much
789 but was rather flaky in practise.
790 - async_pool coro would keep arguments and callback alive until
791 it was reused.
792 - cancellation of a coroutine could cause spurious idle calls
793 in cede_notself.
794
7953.3 Sat Jan 6 03:45:00 CET 2007
796 - implement $coro->on_destroy.
797 - Coro::Event blocking semantics have been changed,
798 documented and - hopefully - improved.
799 - fix nice adding, not subtracting, from priority.
800 - fix ->prio and api_is_ready (patch by Mark Hinds).
801 - fixed an assert ("... == prev__cctx->idle_te")
802 that could errronously trigger.
803 - fix various large and small memleaks.
804 - use a (hopefully) more stable cancel implementation
805 that immediately frees the coroutine data.
806 - cede/cede_notself return a status now.
807 - added Coro::guard function.
808 - added a global coroutine pool for jobs (on my machine,
809 I can create and execute 48k simple coros/s with async,
810 and 128k coros with async_pool).
811 - Coro::AIO now uses the coroutine priority as io priority.
812
8133.2 Fri Dec 22 05:07:09 CET 2006
814 - improve portability to slightly older perls.
815 - use cleaner coroutine destruction.
816 - simplify configuration for users.
817 - optionally (unrecommended) prefer perl functions over
818 their coro replacements.
819
8203.11 Tue Dec 5 13:11:24 CET 2006
821 - fixed some bogus assert's, but as perl.h disables assert even
822 without NDEBUG (thank you very much), not too many people should
823 notice (that did include myself). Andreas König noticed, though :)
824 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
825 it. Also noticed by Andreas König :)
826 - save/restore tainted status.
827 - verified to pass the testsuite on my 5.9.5.
828
8293.1 Mon Dec 4 23:03:40 CET 2006
830 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
831 - incompatible change: transfer flags are now per-state.
832 - give a better error message on deadlock.
833 - document Coro::nready.
834 - enhanced testsuite.
835
8363.01 Sun Dec 3 23:47:42 CET 2006
837 - forgot to include Coro::Timer.
838
8393.0 Sun Dec 3 22:57:25 CET 2006
840 - the "FINALLY COMPLETELY STABLE" release (coming soon:
841 the "FAMOUS LAST WORDS" release).
842 - implement a new stack sharing algorithm, which uses a stack
843 pool (size currently hardcoded).
844 - make stack sharing mandatory (it no longer uses a heuristic).
845 - eval/die no longer cause weird problems under heavy use.
846 - Coro::Event could cause livelocks if it was used but
847 no Coro::Event watchers were used.
848 - Coro::Event now uses asynccheck as prepare does not
849 check for changed watchers.
850 - Coro::Event allows multiple waiting coros and will wake up one
851 per event.
852 - Coro::Event should be cleaner and more efficient now.
853 - new utility function Coro::unblock_sub.
854 - document the sad fact that Event is no longer reentrant.
855 - putting a coroutine into the ready queue twice could under
856 some circumstances lead to stack corruption.
857 - minor incompatibility: subclassing Coro::State is supported
858 directly now without going through a _coro_state member.
859 - state/coro switching is much faster now.
860 - very minor optimisations and code/documentation cleanup.
861 - avoid problems due to compiler inlining.
862 - removed timers from Coro::Timer -> use AnyEvent instead.
863 - replaced Coro::idle coroutine by (cleaner) idle handler.
864 - updated to newest libcoro.
865 - implement enhanced support for valgrind.
866 - implement is_ready and return value for ready.
867 - removed Coro::Cont, it was a misnomer (it's generators),
868 and it was somewhat annoying to get it right. Will come back
869 if somebody asks for it :)
870 - many ->wait methods and Coro::Event could return
871 spuriously without the event having happened.
872
8732.5 Tue Nov 7 12:22:33 CET 2006
874 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
875 use AnyEvent, moved them to Coro/.
876 - added Coro::LWP which contains all the uglyness required to
877 make LWP non-blocking.
878 - should work with perl 5.9.x now (Andreas König made me do it).
879 - fixed another bug in Coro::Select when the timeout was undef.
880 - reuse PL_start_env for all coros, saves some memory per coroutine.
881 - manage PL_top_env differently, hopefully to avoid panic: top_env.
882 - timeout argument was not properly used in Coro::Socket.
883 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
884 - emulate undocumented(!) functionality of IO::Socket required
885 by LWP(!!).
886 - updated eg/lwp to work with newer lwp's.
887 - remove "FATAL: uncaught exception" prefix. Coroutines that die
888 kill the whole process, just as exceptions in the main "coroutine"
889 did already.
890
8912.1 Wed Nov 1 23:01:13 CET 2006
892 - fix a long-standing bug in Coro::Select where select with
893 zero timeout would instead change the current default filehandle.
894 - use a simpler and hopefully more robust way to clone padlists
895 (uses less memory and a perl function instead of our own).
896 - coro can now create a stack guard area on many architectures.
897 - Coro::AIO properly reexports additional functions from IO::AIO.
898 - updated libcoro with a workaround for OS X,
899 pach and testing by Michael Schwern.
900
9012.0 Tue Oct 24 05:47:17 CEST 2006
902 - support additional aio requests in Coro::AIO.
903
9041.9 (never properly released due to a glitch)
905
9061.8 Thu Feb 2 00:59:06 CET 2006
907 - applied suggested patch by SAMV to avoid problems during stupid
908 mark & sweep gc run.
909 - applied patch by Scott Walters for 5.9.3 compatibility.
910
9111.7 Tue Dec 27 01:41:58 CET 2005
912 - added Coro::AIO, a thin wrapper around IO::AIO.
913 - improved Makefile.PL explanations.
914
9151.6 Mon Dec 12 21:30:05 CET 2005
916 - additionally save PM_curpm might fix as-of-yet
917 unseen problems with regex matches being attributed to the
918 wrong package.
919 - add t/10_bugs.t, which currently checks against imho broken
920 perls that use 0.26MB of stack space per Perl_magic_get
921 invocation (newer linuxes) as opposed to the 0.0002MB perl
922 normally uses.
923 - make stacksize configurable for the ultimate debian experience.
924
9251.51 Mon Dec 12 18:48:36 CET 2005
926 - remove debugging warn() accidentally left in Coro::Select.
927
9281.5 Tue Nov 29 13:32:44 CET 2005
929 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
930 - fix Coro::Select 'select'.
931 - strict'ify some modules.
932 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
933 - use XSLoader in selected modules.
934 - remove some 5.6 compatibility cruft.
935
9361.4 Tue Sep 6 00:11:05 CEST 2005
937 - libcoro did not take into account the trampoline on amd64,
938 when 'l'inux method was used.
939
9401.31 Tue Aug 30 23:31:33 CEST 2005
941 - some portability fixes/workarounds.
942
9431.3 Sat Aug 20 03:08:56 CEST 2005
944 - no code changes. module seems to work fine.
945 - improve Coro::State docs, remove reference to nonexisting
946 Coro::State::flush method.
947 - no longer autodetect windows, present it as an option instead.
948
9491.2 Mon May 16 02:00:55 CEST 2005
950 - included libcoro.c earlier in State.xs, might improve portability.
951 - use a faster and possibly more stable Coro::Cont implementation.
952 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
953 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
954 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
955
9561.11 Thu Mar 3 18:00:52 CET 2005
957 - change of contact address.
958
9591.1 Tue Feb 22 20:51:16 CET 2005
960 - support [l]inux method on amd64.
961 - allow some context switches while compiling/eval'ing.
962
9631.0 Tue Aug 10 03:47:27 CEST 2004
964 - Event 0.89 fixes the bug again.
965 - fix the remaining(??) memleak. I didn't free the cache-AV for
966 padlists, so one AV per created anon-sub leaked.
967
9680.97 Fri May 14 15:23:32 CEST 2004
969 - remove stupid gcc extension that was an experiment only anyway.
970
9710.96 Thu May 13 18:09:29 CEST 2004
972 - tell people if they have yet another broken Event variant.
973 - made Coro to work _better_ with threads (it seems that, as long
974 as you use Coros in one thread only everything will work fine.
975 Looking at the perl source the problem might be missing locking
976 between Coro and some perl internal routines. That's not easily
977 fixable).
978 - (hopefully) got rid of the static xnext inside transfer.
979
9800.95 Sun Feb 15 03:20:28 CET 2004
981 - removed Coro::State::flush, implemented a new and much
982 faster caching mechanism by attaching magic to the CV.
983 - a memleak with (real) closures remains.
984 - dramatically reduced size of stacks to 65536 (linux/x86), after
985 observing that even myhttpd never had more than a kilobyte
986 of stack in use (stack is still only physically allocated in
987 pagesize increments for systems suporting mmap).
988 - fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
989 - fix for threaded perl.
2 990
30.9 Sun Nov 23 04:32:39 CET 2003 9910.9 Sun Nov 23 04:32:39 CET 2003
4 - fix a few very hard to track down but (of course) stupid 992 - fix a few very hard to track down but (of course) stupid
5 memory leaks. 993 memory leaks.
6 - stringify version number to avoid locale problems :(. 994 - stringify version number to avoid locale problems :(.

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