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Comparing Coro/Changes (file contents):
Revision 1.139 by root, Sun Nov 5 02:18:05 2006 UTC vs.
Revision 1.581 by root, Wed Aug 3 14:52:18 2011 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: possibly convert some of the Event modules into AnyEvent users. 3TODO: should explore PerlIO::coroaio (perl leaks like hell).
4TODO: channel->maxsize(newsize)?
5TODO: http://www.microsoft.com/msj/archive/s2ce.aspx
4 6
76.04
8 - use even more effciient and more compatible condvars for
9 compatibility to AnyEvent 6.x :)
10
116.03 Wed Aug 3 11:41:30 CEST 2011
12 - change how Coro patches AnyEvent condvars for compatibility to
13 AnyEvent 6.x.
14 - update ecb.h, to no longer include <pthread.h> in case WinNT.h
15 hasn't been included.
16
176.02 Wed Jul 13 04:35:19 CEST 2011
18 - "improve portability to Gentoo" - gentoo manages to put perl variables
19 in memory areas that are farther than 2gb apart, which the jit couldn't
20 handle and barfed. now it's just a bit slower on gentoo and similar
21 systems.
22
236.01 Sun Jul 3 12:31:14 CEST 2011
24 - workarounds are good, but the test for whether pthreads are used
25 was not good. thisone should be better.
26 - check differently whether gcc generates cfi instructions itself.
27
286.0 Wed Jun 29 19:43:35 CEST 2011
29 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
30 destroyed and cleaned up automatically (e.g. async { schedule }).
31 - implement a JIT compiler for part of the thread switch code,
32 which gives a 50% speed improvement on threaded perls, and
33 about 4% on non-thraeded perls (so threaded perls now finally
34 reach about half the speed of non-threaded perls).
35 - slightly modernise Coro::Intro, add section about rouse functions.
36 - avoid DEFSV and ERRSV, giving another 10% improvement
37 in thread switching.
38 - Coro::State->is_destroyed is now called is_zombie.
39 - implement a Coro->safe_cancel method that might fail, but
40 cancels in a "safer" way if it succeeds.
41 - add preliminary support for DEBUGGING perls.
42 - get rid of two hash-accesses when initialising a new Coro - this
43 speeds up coro creation by almost a factor of two.
44 - croak when a coro that is being cancelled tries to block
45 (e.g. while executing a guard block), instead of crashing or
46 deadlocking.
47 - use a more robust and also faster method to identify Coro::State
48 objects - speeds up everything a bit.
49 - implement Coro->cancel in XS for a 20% speed improvement, and to
50 be able to implement mutual cancellation.
51 - speed up context switches by a percent or two by more efficiently
52 allocating context stack entries.
53 - implement Coro->join and Coro->on_destroy in XS for a speedup and
54 a reduction in memory use.
55 - cancelling a coro while it itself is cancelling another coro is
56 now supported and working, instead of triggering an assertion.
57 - be a bit more crash-resistant when calling (buggy) on_destroy
58 callbacks (best effort).
59 - move on_destroy into the slf_frame, to allow extension slf
60 functions to have destructors.
61 - get rid if coro refcounting - simply crash in other interpreter
62 threads by nulling the pointers on clone.
63 - simplify warn/die hook handling when loading Coro - the convoluted
64 logic seems to be no longer neccessary.
65 - use libecb instead of our own home-grown gcc hacks.
66 - document alternatives to Coro::LWP. Please use them :)
67 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
68 sigaltstack. Really. wine suffers from it, erlang suffers from it,
69 and it's known since at least 2006.
70
715.372 Wed Feb 23 06:14:30 CET 2011
72 - apparently mingw doesn't provide a working gettimeofday, try to
73 work around that by relying on Time::HiRes (indirectly brought to
74 my attention by Max Maischein).
75 - fix some portability issues when Time::HiRes was used.
76
775.371 Mon Feb 21 14:36:08 CET 2011
78 - backport to windows process emulation code again.
79
805.37 Sat Feb 19 07:49:44 CET 2011
81 - add a big "Coro thread life cycle" section to "man Coro".
82 - try a tentative workaround against the breakage that 5.13 has
83 introduced without depreciation period. sigh.
84 - no longer use Time::HiRes if gettimeofday is available, which
85 saves quite a lot of memory.
86
875.36 Sun Feb 13 05:33:41 CET 2011
88 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
89 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
90 method call.
91 - undocument Coro::Timer::sleep and obsolete whole module.
92 - optimise Coro::Timer::timeout memory and cpu usage.
93 - slightly updated Coro::Intro for recent changes.
94 - do not initialise PL_dirty anymore.
95
965.25 Thu Nov 11 01:08:39 CET 2010
97 - try a different approach on netbsd - netbsd 5 finally has marginally
98 working pthreads, but still broken ucontext/sigaltstack.
99 - openbsd 4.8 finally got their act together, Coro works out of the box
100 with asm, setjmp and pthreads (no change, just informational).
101
1025.24 Sat Oct 23 11:27:12 CEST 2010
103 - port to the EV 4.0 API.
104 - work around bugs in mingw32, making strawberry perl work
105 out of the box.
106 - correctly modify Coro::AIO function prototypes
107 so that they reflect the "no optional parameters" rule.
108 - "ported" libcoro to C++.
109
1105.23 Mon May 17 18:50:42 CEST 2010
111 - be more resistant to ordering changes when initialising
112 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
113 Waldorf).
114 - document that perl 5.12 deliberately removed support for cloning.
115
1165.22 Wed Apr 14 03:55:35 CEST 2010
117 - correctly return udnef on errors in Coro::Handle::read/write
118 (testcase by Marc Mims).
119 - convert Coro::Util into a "perl compatibility wrapper" - the functions
120 are less useful now, but are drop-in replacements for existing
121 functions, listing better alternatives in the documentation. This also
122 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
123 with Coro::Util::inet_aton.
124 - do not override $Coro::idle unconditionally in Coro.pm, as other
125 modules could have provided their own idle coro already
126 (for exmaple, Coro::AnyEvent).
127 - fix Coro::Util::gethost* functions.
128 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
129
1305.21 Wed Dec 16 07:19:51 CET 2009
131 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
132 together.
133 - add some examples on how to combine other event loops with Coro in
134 Coro::AnyEvent, and how to run it (and not to block). Seems to be
135 the most common source of confusion.
136 - try to catch people naively blocking in an event callback.
137 - work around the perl filehandle bug issue in conjunction with
138 older common::sense (as indirectly pointed out by ZSystem).
139 - clarify the "not from signal handlers" section.
140
1415.2 Sun Oct 4 14:54:24 CEST 2009
142 - Coro::Storable destroyed the prototypes of the functions it wrapped.
143 - export rouse_cb and rouse_wait by default now.
144 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
145 - new method $state->swap_sv.
146 - added section on "windows process emulation" to the manpage,
147 after a not-so-fruitful (nor-friendly) "discussion" with chip
148 salzenberg (discussion implies arguments, but his only arguments
149 were ad-hominems, one wonders why he started it in the first
150 place). I hope this explains it well enough for him to understand,
151 and maybe well enough for others to understand.
152 - use common::sense everywhere now.
153 - idle callbacks are no longer supported, use idle coros instead.
154 - print a thread listing when a deadlock is detected.
155
1565.17 Sat Aug 22 23:09:31 CEST 2009
157 - work around a bug in the perl debugger causing crashes
158 when running under the debugger by marking _pool_handler as nodebug.
159 - speed up Coro::async considerably.
160 - try some hacks to get netbsd to work "more often" - their broken
161 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
162 - convert Coro to AE 5.0 API.
163
1645.162 Tue Jul 28 04:04:03 CEST 2009
165 - perl 5.8.2 is now minimum requirement.
166 - skip t/19_handle.t on broken windows perls.
167
1685.161 Wed Jul 22 04:47:38 CEST 2009
169 - Coro::AnyEvent::poll could have a different prototype when EV was
170 used as backend (analyzed by Tatsuhiko Miyagawa).
171 - Coro::AnyEvent errornously initialised the event loop when loaded,
172 not on demand.
173 - try to workaround rare */t/01_unblock.t failures.
174
1755.16 Tue Jul 21 01:44:37 CEST 2009
176 - Coro::AnyEvent failed to hook into the event loop
177 when no threads had been readied between detecting
178 the event loop and actually running it.
179 - considerably speed up Coro::Select by taking avdantage
180 of AnyEvent > 4.8 and some other optimisations.
181 - implement paragraph readline mode in Coro::Handle
182 (based on patches by Zsbán Ambrus).
183 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
184 and analyzed by Yasuhiro MATSUMOTO).
185 - clarified libcoro license and copyright.
186 - someone stole my EXTRA_META!!!
187 - implement Coro::Select::patch_pp_sselect and it's brother,
188 for hardcode select overriding.
189
1905.151 Mon Jul 6 05:41:57 CEST 2009
191 - backport to windows process emulation code again (patch by
192 Yasuhiro MATSUMOTO).
193 - slightly update Coro::MakeMaker.
194
1955.15 Tue Jun 30 10:28:06 CEST 2009
196 - deprecate Coro::Socket, document how to get ipv6 support via
197 AnyEvent::Socket instead.
198 - implement signal->wait ($cb) interface, similar to semaphores.
199 - work around SvOK not supporting getmagic, so we have to getmagic
200 to test for undef :/ (reported by Matthias Waldorf).
201 - load Coro::AnyEvent in all modules using AnyEvent.
202 - work around perl corrupting our internal data structures,
203 reported by Tokuhiro Matsuno.
204 - enable per-coroutine real and cpu time gathering
205 (Coro::State::enable_times).
206
2075.14 Wed Jun 24 01:37:48 CEST 2009
208 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
209 as this seems to have been a difficult concept (poll, sleep, idle,
210 idle_upto).
211 - add Coro::AnyEvent::readable/writable functions.
212 - clarify Coro::EV/Event/AnyEvent manpages.
213 - free per-thread global scalars in the thread calling ->cancel, to
214 avoid crashes when $_, $@ etc., are magical but some of those
215 had already been freed.
216 - "unexperimentalise" the callback interface for Coro::Semaphore.
217 - speed up ready queue management/context switching by using a linked
218 list instead of an array (~5-10%).
219 - implement "watch" command in Coro::Debug shells.
220 - for fun, implement time-slicing as an example in the manpage.
221 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
222 Coro::Event, use the normal AnyEvent handling instead of dieing
223 (the same is true for Coro::Handle).
224 - properly document Coro::EV::timed_io_once.
225 - avoid unneccessary ->cancel calls in Coro::Handle.
226 - maybe make it work on mingw32 with win32 backend
227 (based on patch by Yasuhiro Matsumoto).
228
2295.132 Fri May 29 09:00:39 CEST 2009
230 - do not keep a reference to the argument itself in
231 Coro::Semaphore::guard, as it could change later.
232 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
233 should support a prepare callback.
234
2355.131 Mon Mar 16 23:20:37 CET 2009
236 - implement and document Coro->suspend, Coro->resume.
237 - fix Coro::Select implementation to not (often) close
238 the passed file descriptors (testcase provided by pippijn).
239
2405.13 Mon Dec 15 21:51:42 CET 2008
241 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
242 - don't set diehook to C<undef> but instead to NULL, to avoid
243 spurious warnings.
244 - fix a lot of bugs in Coro::SemaphoreSet.
245 - Coro::SemaphoreSet will less often create a semaphore needlessly.
246 - add Coro::SemaphoreSet::count and wait methods.
247 - take advantage of the new Guard module.
248 - deprecate Coro::guard.
249 - try to fix the dreaded 01_unblock tests once more. I hate it when
250 testsuites need more fixing than the code they are supposed to test.
251 - croak in more cases when a required callback isn't resolvable.
252 - fix some minor issues in Coro::State->call/eval.
253 - use current coroutine context instead of a temporary one
254 when temporarily switching to another coroutine.
255 - do not call C-level on_destroy handlers during global destruction,
256 to avoid needless segfaults.
257
2585.12 Sun Dec 7 13:30:38 CET 2008
259 - add default config for MirOS, which seems to be a bug-to-bug
260 compatible fork of openbsd ("world domination by releasing
261 openbsd cvs before the openbsd folks do it" or so :).
262 - free_padlist did destroy the names pad, not good, but didn't
263 seem to bother perl - this could fix issues such as eval ""
264 inside a function called from multiple coroutines.
265 - use a different method to detect destruction time.
266 - be more careful when freeing padlists just before global
267 destruction.
268 - fixed and expanded the call/cc example.
269 - renamed _terminate to _coro_run.
270 - new method Coro::Channel->shutdown.
271 - try pthreads on openbsd <4.4 (broken sigaltstack, will
272 pthreads fare better?).
273 - be less picky about destroying "a" running coroutine.
274
2755.11 Tue Nov 25 21:49:05 CET 2008
276 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
277 working code with failed assertions, introducing more bugs than
278 it fixes, requiring elaborate workarounds :(
279
2805.1 Mon Nov 24 08:54:59 CET 2008
281 - wrote a small introductory tutorial - Coro::Intro.
282 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
283 - Coro::Select did errornously dup the file descriptors
284 and didn't work with all AnyEvent backends.
285 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
286 LWP data transfers.
287 - disassociate c contexts from coro objects - this is agruably more
288 correct, but mostly allows sharing of cctxs between coro and state
289 objects, for added memory savings and speed increases.
290 - bumped $Coro::POOL_RSS up to 32kb by default.
291 - no longer set the optype to OP_CUSTOM, as B::* understandably
292 doesn't like this very much (and we *are* a type of entersub).
293 - implement state cloning, just to prove that call/cc can be done.
294 - automatically load Coro::AnyEvent in Coro::Handle.
295 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
296 do not have this method (and don't need it either).
297 - speed up generic anyevent methods in Coro::Handle by using rouse
298 callbacks.
299 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
300 others. It also makes the debugger happier, as you can trace
301 through the idle threads now.
302 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
303 - eg/event was pretty broken.
304 - better 5.8.6 compatibility.
305
3065.0 Thu Nov 20 10:35:05 CET 2008
307 - NEW ARCHITECTURE: use the latest 4.x version if you experience
308 stability issues.
309 - bump API version to 7 - all dependents must be recompiled.
310 - removed timed_* functions - they were not being used anyways
311 and should be replaced by a more generic mechanism -
312 and were annoying to support anyways :)
313 - removed SemaphoreSet's waiter method - use sem method instead.
314 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
315 - async_pool did free a scalar value twice
316 ("Attempt to unreference...").
317 - fix a longstanding bug where calling terminate on a coro that
318 was waiting for a semaphore that was just becoming available
319 would cause a deadlock (semaphore would get into a state where
320 it was available but waiters were still blocked).
321 - calling throw on a coroutine that is waiting for a semaphore will
322 no longer make it acquire the semaphore (and thus leak a count).
323 - perl's process emulation is now not even theoretically supported
324 anymore.
325 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
326 conversion of callback-style to blocking-style.
327 - new methods $coro->schedule_to and ->cede_to, to specifically
328 schedule or cede to a specific coroutine.
329 - new function Coro::Semaphore::wait.
330 - use named constants in Coro::Channel (Richard Hundt).
331 - directly patch the entersub opcode calling SLF functions (cede,
332 transfer and so on). this does speed up context switching, but
333 more importanly, it frees us from the hardcoded behaviour of
334 entersub, so we might actually be able to return something from
335 those functions and atcually create new ones.
336 - take advantage of __builtin_frame_address on gcc.
337 - expose THX in coroapi (not sure whether this was a wise decision,
338 as "threaded" perls are running at half speed anyways).
339 - implement execute_slf (schedule-like-function) interface that makes
340 it possible to implement schedule-like-functions in XS.
341 - use new SLF interface to massively speed up Coro::EV by roughly a
342 factor of two.
343 - used new SLF interface to massively speed up Coro::Semaphore by a
344 factor of three.
345 - used new SLF interface to speed up Coro::AIO by roughly a factor of
346 four and reduce its memory usage considerably.
347 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
348 for a nice speedup and vastly more correct behaviour. Also implement
349 a new method "sem" to get at the underlying semaphore object.
350 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
351 (in comparison) 20-40% speedup.
352 - used new SLF interface to reimplement Coro::Signal gaining
353 some unknown (because I was too lazy), but certain, speedup, and also
354 making signals reliable for the first time.
355 - used new SLF interface and other optimisations to speed up async_pool
356 by a factor of two. It also doesn't rely on perl's exception mechanism
357 to exit anymore. The overhead for terminating an async_pool, coro over
358 a normal async is now very small.
359 - sped up coroutine creation/destruction by 40%.
360 - forgot to include Coro/libcoro/README in the dist for all these years.
361 - work around a freebsd pthreads bug (manual testcancel is required as
362 pthread_cond_wait isn't a cancellation point on freebsd).
363 - use new rouse functions to speed up and simplify Coro::BDB.
364 - make "prefer perl native functions" work with threaded perls.
365 - condense Coro::Debug ps output, hint at v and w flags.
366 - (libcoro) lots of minor cleanups and portability improvements.
367
3684.914 Wed Nov 19 12:54:18 CET 2008
369 - fix a disastrous bug in the readline optimisation
370 introduced in 4.801.
371
3724.913 Sat Nov 15 07:58:28 CET 2008
373 - async_pool did free a scalar value twice
374 ("Attempt to unreference...").
375
3764.912 Thu Nov 13 18:31:23 CET 2008
377 - minor cleanups.
378 - use much larger stacks on linux and perl < 5.8.8.
379 - Coro::Debug::new_unix_server did not unlink the socket
380 when destroyed.
381
3824.911 Tue Nov 11 04:26:17 CET 2008
383 - "port" to threaded perls.
384
3854.91 Mon Nov 10 05:36:38 CET 2008
386 - the ->throw exception object no longer leaks.
387 - creating a new cctx leaked a scopestack entry (memleak).
388 - new coroutines didn't get created with a zero flags field
389 (unknown impact).
390 - calling ->throw on a not-yet-started coroutine should now work
391 instead of being ignored.
392 - ->throw is now supported on Coro::State objects.
393 - clean up cctx creation code a bit.
394 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
395
3964.9 Sat Nov 8 17:45:27 CET 2008
397 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
398 - (libcoro) no longer leak threads in the experimental pthread backend,
399 also speed it up considerably.
400 - (libcoro) do not rely on makecontext passing void *'s unscathed.
401 - fix compiletime dependencies on libcoro in the Makefile.
402 - cctx_count wasn't always updated properly.
403 - Coro::State::cctx_stacksize wasn't applied correctly.
404 - new function Coro::State::cctx_max_idle.
405 - the default max number of idle C contexts is now 4.
406 - (libcoro) try harder to get _setjmp/_longjmp.
407 - (libcoro) cleanup and extend the libcoro API to officially
408 allow the creation of empty source contexts.
409 - very experimental workaround for the totally broken netbsd platform.
410 - tried to hack around openbsd bugs.
411
4124.804 Wed Nov 5 16:36:00 CET 2008
413 - Coro::Debug::new_unix_server would not create a non-blocking listening
414 socket, sometimes causing freezes.
415 - (libcoro) fix misaligned stack points for setjmp and assembly
416 methods, which can cause crashes on x86/x86_64 with a sufficiently
417 aggressive compiler.
418 - new function: Coro::Debug::new_tcp_server.
419 - move ->throw into the Coro class because it only works on coro objects.
420
4214.803 Mon Nov 3 17:16:12 CET 2008
422 - (libcoro) use a global asm statement to become independent of gcc
423 otpimisations for CORO_ASM (thanks to pippijn for the idea).
424 - try to workaround yet another broken bsd, this time dragonfly.
425
4264.802 Thu Oct 30 10:56:12 CET 2008
427 - support -fno-omit-frame-pointer on x86 with the assembly method.
428 - tune 01_unblock.t tests a bit.
429
4304.801 Wed Oct 22 18:33:37 CEST 2008
431 - improve readline speed for very long "lines".
432 - backport to 5.8.8.
433
4344.8 Thu Oct 2 13:34:40 CEST 2008
435 - new function Coro::AIO::aio_wait.
436 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
437 - greatly speed up and reduce memory usage of Coro::AIO requests.
438 - implement some other µ-optimisations.
439
4404.749 Mon Sep 29 14:40:12 CEST 2008
441 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
442
4434.748 Sat Sep 27 14:03:19 CEST 2008
444 - implement, but do not document, PerlIO::cede(granularity).
445 - Coro::Storable forgot to wrap Storable::pstore.
446 - work around the multitude of leaks and memory corruption
447 bugs in PerlIO::via by using our own C-level perliol. As a side
448 effect, Coro::Storable is now much, much, much faster.
449
4504.747 Tue Sep 23 01:59:41 CEST 2008
451 - fix a per-cv memleak (one empty array was leaked per
452 code reference).
453 - avoid a crash in coro->call|rss when the coroutine was already
454 destroyed (most noticably when using Coro::Debug::ps :)
455 - also protect *Storable::FILE.
456 - push up default storable granularity to 20ms.
457
4584.746 Sun Sep 21 03:22:20 CEST 2008
459 - be more insistent on locking Storable against reentrancy
460 in Coro::Storable.
461 - move swap_def?v and throw to Coro::State, as documented.
462
4634.745 Thu Jul 24 00:14:38 CEST 2008
464 - remove debugging code related to MgPV_nolen_const, also try to
465 make it compile with perl 5.8.6 (yes, apple apparently loves
466 outdated software). Reported by John S.
467
4684.744 Tue Jul 8 22:06:35 CEST 2008
469 - correctly provide default DIE/WARN handlers as documented.
470 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
471 implementations inside perl work fine for us.
472
4734.743 Mon Jun 16 00:21:57 CEST 2008
474 - when using Coro::EV without running EV::loop it could
475 result in busy-waiting for events, this has been fixed.
476 - reduce codesize and improve performance by using EV_DEFAULT_UC.
477
4784.742 Sat May 31 14:10:21 CEST 2008
479 - implement a workaround for (some) perl <5.8.8 versions.
480 - require EV 3.3+.
481
4824.741 Fri May 30 23:33:09 CEST 2008
483 - tell netbsd how utterly broken their imitation of an OS is
484 and refuse to build by default if pthreads are in use.
485 - switch to "s" method on all bsd's by default, as their ucontext
486 stuff seems just too broken.
487 - fix a bug in Coro::Select.
488
4894.74 Thu May 29 20:05:31 CEST 2008
490 - do not test Coro::LWP for lack of dependencies.
491 - do not test Coro::Select for lack of working perls.
492
4934.73 Thu May 29 2008
494 - fix a bug in Coro::EV which would cause it to block despite
495 there being runnable coroutines.
496 - sprinkle "no warnings" freely over everything, also suppress
497 warnings for some other modules.
498 - fix typo in WSAEWOULDBLOCK.
499
5004.72 Sun May 25 05:14:36 CEST 2008
501 - tweak META.yaml a bit, unfortunately, there is no documented way
502 to have optional dependencies with CPAN. doh :(
503 - avoid running some tests on windows because they would fail due to
504 perl bug (broken fork, broken pipes...).
505 - work around perl on windows bugs where perl returns undocumented
506 error codes for sysread, syswrite etc. by taking advantage
507 of AnyEvent's workaround for that problem.
508 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
509 a common perl implementation bug on windows.
510 - use unix domain sockets in testsuite to work around
511 common perl implementation bugs on widows (they are emulated by
512 tcp sockets on windows. ugh.)
513
5144.71 Sat May 24 20:01:27 CEST 2008
515 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
516 - take advantage of async name resolution of AnyEvent::Util.
517 - work around brutal inet_aton override in Coro::LWP.
518 - take advantage of the readyhook in Coro::EV, for smoother
519 scheduling.
520
5214.7 Sun May 11 00:32:19 CEST 2008
522 - completely reworked the Coro manpage.
523 - added Coro::AnyEvent, generic event loop integration.
524 - implement cancel, ready and kill commands in Coro::Debug.
525 - document find_coro in Coro::Debug.
526 - incompatible change: rename has_stack to has_cctx.
527 - Coro::AIO and Coro::BDB no longer force event model detection,
528 use AnyEvent::AIO and AnyEvent::BDB.
529
5304.6 Sat Apr 26 10:05:14 CEST 2008
531 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
532 by the Coro module. It was a mistake to have it in the first place.
533 - (experimental) support for activestate perl 5.10 (method "w").
534 - (experimental) support for strawberry perl (method "a").
535 - coro_sigelem_set did not return a value although it had to,
536 actual impact unknown.
537
5384.51 Mon Apr 14 13:28:27 CEST 2008
539 - make it compile again on 5.8.
540
5414.50 Thu Apr 10 09:43:17 CEST 2008
542 - I did it twice! (see 4.49).
543
5444.49 Sun Apr 6 21:23:31 CEST 2008
545 - grr, instead of compiling the recent changes on 5.10 only they
546 were compiled on 5.8 only.
547
5484.48 Sun Apr 6 20:36:46 CEST 2008
549 - allow coroutine switches during eval's under 5.10.x, as it seems
550 the parser is a per-interpreter option now, so this is safe
551 (this might fix the odd crashing bug).
552 - drop support for 5.9.x versions: they are dead, jim.
553
5544.47 Sun Apr 6 00:37:52 CEST 2008
555 - force cctx allocation on API calls: we know we need to force one
556 and gcc actually manages to confuse our heuristic nowadays,
557 leading to crashes and worse.
558 - document force_cctx.
559
5604.46 Fri Apr 4 22:05:43 CEST 2008
561 - upgrade libcoro, resulting in pthread-backend (which was only created
562 to fulfill the rules of the programming languages shootout).
563
5644.45 Thu Mar 13 11:55:36 CET 2008
565 - fix a file leaking bug in eg/mhyttpd that would allow
566 downloading of any file (reported by oesi).
567 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
568 (also add testcase).
569 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
570 apparently having loads of fun with that).
571 - implement $state->swap_defsv, ->swap_defav and document ->throw.
572
5734.4 Wed Feb 13 16:44:29 CET 2008
574 - only assume .cfi pseudo isns exist on GNU/Linux.
575 - add get_timed method to Coro::Channels.
576 - fixed Coro::Debug manpage.
577 - perl 5.11 compatbility improvement based on patch by
578 Andreas König.
579
5804.37 Sun Jan 20 11:25:23 CET 2008
581 - soften the check for an active parser for perl 5.10 (avoiding
582 "Coro::State::transfer called while parsing" in many cases).
583
5844.36 Sun Jan 13 10:53:56 CET 2008
585 - reset diehook when terminating from an async_pool as to not
586 trigger any __DIE__ handlers.
587
5884.35 Sun Jan 13 04:14:13 CET 2008
589 - "bt" debug command now displays any exceptions
590 from longmess and also skips the innermost
591 stackframes, giving more useufl output.
592 - allow backtraces in coroutines blocked in Coro::EV,
593 at a <1% speed hit.
594 - handle localising of $SIG{__WARN__} and __DIE__
595 properly (with a proper amount of dirty hacking).
596
5974.34 Sat Dec 22 17:49:53 CET 2007
598 - upgrade to EV version 2.0 API.
599
6004.33 Mon Dec 17 08:36:12 CET 2007
601 - make Coro::AIO etc. loadable in the absence of EV.
602
6034.32 Mon Dec 17 07:46:02 CET 2007
604 - majorly improved Coro::Handle's performance with Coro::EV.
605 - implemented the until now mythical Coro::BDB module.
606 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
607
6084.31 Wed Dec 5 12:32:39 CET 2007
609 - remove warn statement form Coro::Util.
610
6114.3 Tue Dec 4 20:33:14 CET 2007
612 - calls to the idle function could cause stack corruption
613 when the stack changed.
614 - do no longer rely on the presence of EV::DNS if EV is used
615 (because it is gone), but instead take avdantage of EV::ADNS
616 if available.
617 - add ($) prototypes to all functions in Coro::Storable.
618 - use a conventional (safer) idle callback in Coro::EV.
619 - do accept quickly in Coro::Debug to avoid endless loops.
620
6214.22 Fri Nov 30 16:04:04 CET 2007
622 - really use optimised versions for Event and EV in Coro::Util
623 and Coro::Handle.
624
6254.21 Sun Nov 25 10:48:59 CET 2007
626 - fix a spurious memory read.
627 - Coro::EV no longer keeps the eventloop "alive".
628
6294.2 Fri Nov 9 20:47:05 CET 2007
630 - enable/disable tracing from a new coroutine, not a pooled one.
631 - fix a memleak in Coro::Event.
632 - removed killall call from fork_eval.
633 - made sure store_fd is already loaded so that fork_eval
634 does not have to parse autoload in each subprocess.
635 - only use assembly method if -O switch is in $Config{optimize}.
636 - add (optional) Coro::EV module, so far the best event loop module
637 directly supported by Coro.
638 - if the event model is EV, use EV::DNS to resolve
639 stuff in Coro::Util.
640 - don't get confused by multiple event notifications in Coro::Handle.
641 - initial support for EV (libevent interface).
642 - require Event and EV using configure_requires, to force their existance.
643
6444.13 Wed Oct 24 07:26:45 CEST 2007
645 - add Coro::Storable::blocking_thaw.
646 - use a vastly more complicated technique to localise
647 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
648 - use a coroutine for the idle callback Coro::Event,
649 instead of running Event in the current coroutine context.
650 This also catches recursive invocations.
651 - actually report fork errors in gethostbyname and inet_aton.
652
6534.11 Thu Oct 11 02:40:24 CEST 2007
654 - port to threaded perls.
655
6564.1 Thu Oct 11 02:38:16 CEST 2007
657 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
658 be local to each coro (see Coro::State).
659 - incompatible change: for very deep reasons, cede and cede_notself
660 cannot return anything, so nothing will be returned.
661 - possibly bring back 5.10 compatibility (untested).
662 - work around stupid (and wrong) warning on 5.10 :(.
663 - overlay the saved state over the context stack. This saves
664 a few hundred bytes per coroutine on average and also
665 speeds up context switching a bit.
666 - further tune default stack sizes.
667 - (more) correctly calculate stack usage in coro_rss.
668 - Coro::Storable::blocking_* did not properly lock
669 resulting in races between coroutines.
670 - added Coro::Storable::guard.
671 - stopping to trace a coroutine could destroy the cctx of
672 an unrelated coroutine.
673 - explain the relationship between Perl and C coroutines in
674 more detail in Coro::State.
675 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
676 causing a fork per resolve. This also affected Coro::Socket.
677 - switch to a separate stack in $coro->call/eval to avoid
678 invalidating pointers.
679
6804.03 Sat Oct 6 21:24:00 CEST 2007
681 - added Coro::throw method.
682 - minor code cleanups.
683
6844.02 Sat Oct 6 02:36:47 CEST 2007
685 - fix a very minor per-coroutine memleak (a single codereference).
686 - fixed a bug where the currently in-use c context would be freed
687 prematurely (can happen only when programs change the stacksize
688 or use tracing).
689 - tracing can no longer keep a coro alive after it terminated.
690 - do static branch prediction in the common path for gcc. gives
691 about 2-5% speed improvement here.
692
6934.01 Fri Oct 5 22:10:49 CEST 2007
694 - instead of recreating *a* standard output handle we simply
695 use STDOUT, which is faster and hopefully more robust.
696
6974.0 Fri Oct 5 12:56:00 CEST 2007
698 - incompatibly changed Coro::Storable::freeze.
699 - major new feature: added Coro::Debug, for interactive coroutine
700 debugging, tracing and much more.
701 - major bug fix: unbelievable, but true: $_, $/ and many other
702 "saved" variables actually weren't being saved. This has been fixed,
703 of course, while increasing performance while losing all the save
704 flags.
705 - save flags are gone, and all the api functions dealing with them.
706 - added Coro::Semaphore::adjust.
707 - added Coro::Util::fork_eval.
708 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
709 - added Coro::killall.
710 - reduce initial stack sizes to allow for "micro-coroutines".
711 - better async_pool resource management, moved parts of async_pool
712 handling to XS (major speed improvement).
713 - actually croak before modifying important data structures.
714 - refuse to transfer while compiling.
715 - possibly support eval EXPR better now.
716 - enable assembly per default on linux+bsd x86+amd64.
717 - all internal members were renamed _something for easier subclassing.
718 - many minor tweaks.
719
7203.63 Wed May 16 14:10:06 CEST 2007
721 - implement handcoded assembly for x86/amd64 SVR ABI.
722
7233.62 Fri Apr 27 21:36:06 CEST 2007
724 - upgrade libcoro (which might set unwind info correctly).
725 - change default on linux to setjmp/longjmp.
726
7273.61 Thu Apr 19 12:36:18 CEST 2007
728 - Coro::Storable caused an endless loop when thawing invalid
729 pst's sometimes.
730 - use a Semaphore in Coro::Storable, as Storable doesn't
731 seem to be reentrant (although it is documented to
732 be threadsafe...).
733 - fix Coro::Signal to bring back the original unreliable
734 but stateful semantics.
735 - fixed a lot of typos in Coro.pm (patch submitted by David
736 Steinbrunner, which applied flawlessly).
737
7383.6 Sat Apr 14 17:13:31 CEST 2007
739 - added some bugfixes to get eg/myhttpd working again.
740 - added Coro::Storable for often-cede'ing freeze/thaw.
741 - try to do a clean exit when a coroutine calls exit
742 (EXPERIMENTAL).
743 - got rid of indirect call through _coro_init.
744 - updated the partly antique examples in eg/ to
745 work again and be a bit less magic, too.
746 - fixed Coro::Signal semantics to work as documented again.
747
7483.55 Sun Mar 25 01:20:47 CET 2007
749 - add SAVE_DEFFH to save the default filehandle and enable
750 it by default.
751 - finally move socket-operations from Coro::Socket to Coro::Handle
752 to be able to unblock foreign sockets.
753 - add Coro::State::save_also and guarded_save.
754 - add count accessor to Coro::Semaphore.
755 - add Coro::State::cctx_stacksize.
756 - just for the fun of it, do not rely on implicit context,
757 which can dramatically improve performance, but people
758 using windows-process-emulation perls do not care much about
759 performance.
760
7613.51 Sun Mar 4 14:18:04 CET 2007
762 - fixed a problem when you weakened references to Coro::State's
763 (patch by Yuval Kogman).
764
7653.501 Wed Feb 28 12:44:07 CET 2007
766 - rename some global symbols as macosx from hell redefines
767 them without asking.
768
7693.5 Tue Feb 13 20:22:53 CET 2007
770 - do AnyEvent model detection earlier, avoiding problems
771 caused by first using AnyEvent and later Coro::Event.
772 - implement and document Coro::Event event objects.
773 - fix a potential problem in Coro::Event causing crashes.
774 - initialise PL_comppad when creating a new coroutine,
775 avoids crashes on early coro destruction.
776
7773.41 Mon Jan 22 19:19:49 CET 2007
778 - readline on Coro::Handle did not support undefined $/,
779 nor did it deliver partial lines on EOF or error.
780 - implement malloc fallback for stack allocation because
781 stupid broken idiotic OSX has a stupid broken
782 idiotic fits-the-whole-os mmap "implementation" and
783 my dick feels longer if Coro is portable even to
784 obsolete platforms.
785
7863.4 Fri Jan 19 21:52:54 CET 2007
787 - remove t/09_timer.t, as it isn't really testing much
788 but was rather flaky in practise.
789 - async_pool coro would keep arguments and callback alive until
790 it was reused.
791 - cancellation of a coroutine could cause spurious idle calls
792 in cede_notself.
793
7943.3 Sat Jan 6 03:45:00 CET 2007
795 - implement $coro->on_destroy.
796 - Coro::Event blocking semantics have been changed,
797 documented and - hopefully - improved.
798 - fix nice adding, not subtracting, from priority.
799 - fix ->prio and api_is_ready (patch by Mark Hinds).
800 - fixed an assert ("... == prev__cctx->idle_te")
801 that could errronously trigger.
802 - fix various large and small memleaks.
803 - use a (hopefully) more stable cancel implementation
804 that immediately frees the coroutine data.
805 - cede/cede_notself return a status now.
806 - added Coro::guard function.
807 - added a global coroutine pool for jobs (on my machine,
808 I can create and execute 48k simple coros/s with async,
809 and 128k coros with async_pool).
810 - Coro::AIO now uses the coroutine priority as io priority.
811
8123.2 Fri Dec 22 05:07:09 CET 2006
813 - improve portability to slightly older perls.
814 - use cleaner coroutine destruction.
815 - simplify configuration for users.
816 - optionally (unrecommended) prefer perl functions over
817 their coro replacements.
818
8193.11 Tue Dec 5 13:11:24 CET 2006
820 - fixed some bogus assert's, but as perl.h disables assert even
821 without NDEBUG (thank you very much), not too many people should
822 notice (that did include myself). Andreas König noticed, though :)
823 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
824 it. Also noticed by Andreas König :)
825 - save/restore tainted status.
826 - verified to pass the testsuite on my 5.9.5.
827
8283.1 Mon Dec 4 23:03:40 CET 2006
829 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
830 - incompatible change: transfer flags are now per-state.
831 - give a better error message on deadlock.
832 - document Coro::nready.
833 - enhanced testsuite.
834
8353.01 Sun Dec 3 23:47:42 CET 2006
836 - forgot to include Coro::Timer.
837
8383.0 Sun Dec 3 22:57:25 CET 2006
839 - the "FINALLY COMPLETELY STABLE" release (coming soon:
840 the "FAMOUS LAST WORDS" release).
841 - implement a new stack sharing algorithm, which uses a stack
842 pool (size currently hardcoded).
843 - make stack sharing mandatory (it no longer uses a heuristic).
844 - eval/die no longer cause weird problems under heavy use.
845 - Coro::Event could cause livelocks if it was used but
846 no Coro::Event watchers were used.
847 - Coro::Event now uses asynccheck as prepare does not
848 check for changed watchers.
849 - Coro::Event allows multiple waiting coros and will wake up one
850 per event.
851 - Coro::Event should be cleaner and more efficient now.
852 - new utility function Coro::unblock_sub.
853 - document the sad fact that Event is no longer reentrant.
854 - putting a coroutine into the ready queue twice could under
855 some circumstances lead to stack corruption.
856 - minor incompatibility: subclassing Coro::State is supported
857 directly now without going through a _coro_state member.
858 - state/coro switching is much faster now.
859 - very minor optimisations and code/documentation cleanup.
860 - avoid problems due to compiler inlining.
861 - removed timers from Coro::Timer -> use AnyEvent instead.
862 - replaced Coro::idle coroutine by (cleaner) idle handler.
863 - updated to newest libcoro.
864 - implement enhanced support for valgrind.
865 - implement is_ready and return value for ready.
866 - removed Coro::Cont, it was a misnomer (it's generators),
867 and it was somewhat annoying to get it right. Will come back
868 if somebody asks for it :)
869 - many ->wait methods and Coro::Event could return
870 spuriously without the event having happened.
871
8722.5 Tue Nov 7 12:22:33 CET 2006
873 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
874 use AnyEvent, moved them to Coro/.
5 - added Coro::LWP which contains all the uglyness of making LWP 875 - added Coro::LWP which contains all the uglyness required to
6 non-blocking. 876 make LWP non-blocking.
7 - should compile with perl 5.9.x now. 877 - should work with perl 5.9.x now (Andreas König made me do it).
878 - fixed another bug in Coro::Select when the timeout was undef.
8 - reuse PL_start_env for all coros, saves some memory per coroutine. 879 - reuse PL_start_env for all coros, saves some memory per coroutine.
9 - manage PL_top_env differently, hopefully to avoid panic: top_env. 880 - manage PL_top_env differently, hopefully to avoid panic: top_env.
10 - timeout argument was not properly used in Coro::Socket. 881 - timeout argument was not properly used in Coro::Socket.
11 - allow limited forms of subclassing in Coro::Handle/Coro::Socket. 882 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
12 - emulate undocumented(!) functionality of IO::Socket required 883 - emulate undocumented(!) functionality of IO::Socket required
13 by LWP(!!). 884 by LWP(!!).
14 - updated eg/lwp to work with newer lwp's. 885 - updated eg/lwp to work with newer lwp's.
15 - made Coro::Util an AnyEvent user, moved it to Coro/.
16 - remove "FATAL: uncaught exception" prefix. coroutines that die 886 - remove "FATAL: uncaught exception" prefix. Coroutines that die
17 kill the whole process, just as exceptions in the main coroutine 887 kill the whole process, just as exceptions in the main "coroutine"
18 do. 888 did already.
19 889
202.1 Wed Nov 1 23:01:13 CET 2006 8902.1 Wed Nov 1 23:01:13 CET 2006
21 - fix a long-standing bug in Coro::Select where select with 891 - fix a long-standing bug in Coro::Select where select with
22 zero timeout would instead change the current default filehandle. 892 zero timeout would instead change the current default filehandle.
23 - use a simpler and hopefully more robust way to clone padlists 893 - use a simpler and hopefully more robust way to clone padlists

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