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Comparing Coro/Changes (file contents):
Revision 1.100 by root, Mon Mar 21 14:35:45 2005 UTC vs.
Revision 1.446 by root, Thu Nov 20 03:11:29 2008 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: should explore PerlIO::coroaio (perl leaks like hell).
4TODO: maybe implement a default message channel, very much like Erlang's
5 actor model (which is cool in a lot of important aspects (failures!),
6 but very lacking in others (higher level ipc)).
7
8TODO: async_pool to SLF
9TODO: _cancel to xs
105.0
11 - NEW ARCHITECTURE: use the latest 4.x version if you experience
12 stability issues.
13 - bump API version to 7 - all dependents must be recompiled.
14 - removed timed_* functions - they were not being used anyways
15 and should be replaced by a more generic mechanism -
16 and were annoying to support anyways :)
17 - removed SemaphoreSet's waiter method - use sem instead.
18 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
19 - async_pool did free a scalar value twice
20 ("Attempt to unreference...").
21 - fix a disastrous bug in the readline optimisation
22 introduced in 4.801.
23 - fix a longstanding bug where calling terminate on a coro that
24 was waiting for a semaphore that was just becoming available
25 would cause a deadlock (semaphore would get into a state where
26 it was available but waiters were still blocked).
27 - calling throw on a coroutine that is waiting for a semaphore will
28 no longer make it acquire the semaphore (and thus leak a count).
29 - perl's process emulation is now not even theoretically supported
30 anymore.
31 - new functions Coro::rouse_cb and Coro::rouse_wait.
32 - new function Coro::Semaphore::wait.
33 - use named constants in Coro::Channel (Richard Hundt).
34 - directly patch the entersub opcode calling SLF functions (cede,
35 transfer and so on). this does speed up context switching, but
36 more importanly, it frees us from the hardcoded behaviour of
37 entersub, so we might actually be able to return something from
38 those functions and atcually create new ones.
39 - take advantage of __builtin_frame_address on gcc.
40 - expose THX in coroapi (not sure whether this was a wise decision,
41 as "threaded" perls are running at half speed anyways).
42 - implement execute_slf (schedule-like-function) interface that makes
43 it possible to implement schedule-like-functions in XS.
44 - use new SLF interface to massively speed up Coro::EV by roughly a
45 factor of two.
46 - used new SLF interface to massively speed up Coro::Semaphore by a
47 factor of three.
48 - used new SLF interface to speed up Coro::AIO by roughly a factor of
49 four and reduce its memory usage considerably.
50 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
51 for a nice speedup and vastly more correct behaviour. Also implement
52 a new method "sem" to get at the underlying semaphore object.
53 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
54 (in comparison) 20-40% speedup.
55 - used new SLF interface to reimplement Coro::Signal gaining
56 some unknown (because I was too lazy), but certain, speedup, and also
57 making signals reliable for the first time.
58 - used new SLF interface and other optimisations to speed up async_pool
59 by a factor of two. It also doesn't rely on perl's exception mechanism
60 to exit anymore. The overhead for terminating an async_pool, coro over
61 a normal async is now very small.
62 - sped up coroutine creation/destruction by 40%.
63 - forgot to include Coro/libcoro/README in the dist for all these years.
64 - work around a freebsd pthreads bug (manual testcancel is required as
65 pthread_cond_wait isn't a cancellation point on freebsd).
66 - use new rouse functions to speed up and simplify Coro::BDB.
67 - make "prefer perl native functions" work with threaded perls.
68 - condense Coro::Debug ps output, hint at v and w flags.
69 - (libcoro) lots of minor cleanups and portability improvements.
70
714.913 Sat Nov 15 07:58:28 CET 2008
72 - async_pool did free a scalar value twice
73 ("Attempt to unreference...").
74
754.912 Thu Nov 13 18:31:23 CET 2008
76 - minor cleanups.
77 - use much larger stacks on linux and perl < 5.8.8.
78 - Coro::Debug::new_unix_server did not unlink the socket
79 when destroyed.
80
814.911 Tue Nov 11 04:26:17 CET 2008
82 - "port" to threaded perls.
83
844.91 Mon Nov 10 05:36:38 CET 2008
85 - the ->throw exception object no longer leaks.
86 - creating a new cctx leaked a scopestack entry (memleak).
87 - new coroutines didn't get created with a zero flags field
88 (unknown impact).
89 - calling ->throw on a not-yet-started coroutine should now work
90 instead of being ignored.
91 - ->throw is now supported on Coro::State objects.
92 - clean up cctx creation code a bit.
93 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
94
954.9 Sat Nov 8 17:45:27 CET 2008
96 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
97 - (libcoro) no longer leak threads in the experimental pthread backend,
98 also speed it up considerably.
99 - (libcoro) do not rely on makecontext passing void *'s unscathed.
100 - fix compiletime dependencies on libcoro in the Makefile.
101 - cctx_count wasn't always updated properly.
102 - Coro::State::cctx_stacksize wasn't applied correctly.
103 - new function Coro::State::cctx_max_idle.
104 - the default max number of idle C contexts is now 4.
105 - (libcoro) try harder to get _setjmp/_longjmp.
106 - (libcoro) cleanup and extend the libcoro API to officially
107 allow the creation of empty source contexts.
108 - very experimental workaround for the totally broken netbsd platform.
109 - tried to hack around openbsd bugs.
110
1114.804 Wed Nov 5 16:36:00 CET 2008
112 - Coro::Debug::new_unix_server would not create a non-blocking listening
113 socket, sometimes causing freezes.
114 - (libcoro) fix misaligned stack points for setjmp and assembly
115 methods, which can cause crashes on x86/x86_64 with a sufficiently
116 aggressive compiler.
117 - new function: Coro::Debug::new_tcp_server.
118 - move ->throw into the Coro class because it only works on coro objects.
119
1204.803 Mon Nov 3 17:16:12 CET 2008
121 - (libcoro) use a global asm statement to become independent of gcc
122 otpimisations for CORO_ASM (thanks to pippijn for the idea).
123 - try to workaround yet another broken bsd, this time dragonfly.
124
1254.802 Thu Oct 30 10:56:12 CET 2008
126 - support -fno-omit-frame-pointer on x86 with the assembly method.
127 - tune 01_unblock.t tests a bit.
128
1294.801 Wed Oct 22 18:33:37 CEST 2008
130 - improve readline speed for very long "lines".
131 - backport to 5.8.8.
132
1334.8 Thu Oct 2 13:34:40 CEST 2008
134 - new function Coro::AIO::aio_wait.
135 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
136 - greatly speed up and reduce memory usage of Coro::AIO requests.
137 - implement some other µ-optimisations.
138
1394.749 Mon Sep 29 14:40:12 CEST 2008
140 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
141
1424.748 Sat Sep 27 14:03:19 CEST 2008
143 - implement, but do not document, PerlIO::cede(granularity).
144 - Coro::Storable forgot to wrap Storable::pstore.
145 - work around the multitude of leaks and memory corruption
146 bugs in PerlIO::via by using our own C-level perliol. As a side
147 effect, Coro::Storable is now much, much, much faster.
148
1494.747 Tue Sep 23 01:59:41 CEST 2008
150 - fix a per-cv memleak (one empty array was leaked per
151 code reference).
152 - avoid a crash in coro->call|rss when the coroutine was already
153 destroyed (most noticably when using Coro::Debug::ps :)
154 - also protect *Storable::FILE.
155 - push up default storable granularity to 20ms.
156
1574.746 Sun Sep 21 03:22:20 CEST 2008
158 - be more insistent on locking Storable against reentrancy
159 in Coro::Storable.
160 - move swap_def?v and throw to Coro::State, as documented.
161
1624.745 Thu Jul 24 00:14:38 CEST 2008
163 - remove debugging code related to MgPV_nolen_const, also try to
164 make it compile with perl 5.8.6 (yes, apple apparently loves
165 outdated software). Reported by John S.
166
1674.744 Tue Jul 8 22:06:35 CEST 2008
168 - correctly provide default DIE/WARN handlers as documented.
169 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
170 implementations inside perl work fine for us.
171
1724.743 Mon Jun 16 00:21:57 CEST 2008
173 - when using Coro::EV without running EV::loop it could
174 result in busy-waiting for events, this has been fixed.
175 - reduce codesize and improve performance by using EV_DEFAULT_UC.
176
1774.742 Sat May 31 14:10:21 CEST 2008
178 - implement a workaround for (some) perl <5.8.8 versions.
179 - require EV 3.3+.
180
1814.741 Fri May 30 23:33:09 CEST 2008
182 - tell netbsd how utterly broken their imitation of an OS is
183 and refuse to build by default if pthreads are in use.
184 - switch to "s" method on all bsd's by default, as their ucontext
185 stuff seems just too broken.
186 - fix a bug in Coro::Select.
187
1884.74 Thu May 29 20:05:31 CEST 2008
189 - do not test Coro::LWP for lack of dependencies.
190 - do not test Coro::Select for lack of working perls.
191
1924.73 Thu May 29 2008
193 - fix a bug in Coro::EV which would cause it to block despite
194 there being runnable coroutines.
195 - sprinkle "no warnings" freely over everything, also suppress
196 warnings for some other modules.
197 - fix typo in WSAEWOULDBLOCK.
198
1994.72 Sun May 25 05:14:36 CEST 2008
200 - tweak META.yaml a bit, unfortunately, there is no documented way
201 to have optional dependencies with CPAN. doh :(
202 - avoid running some tests on windows because they would fail due to
203 perl bug (broken fork, broken pipes...).
204 - work around perl on windows bugs where perl returns undocumented
205 error codes for sysread, syswrite etc. by taking advantage
206 of AnyEvent's workaround for that problem.
207 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
208 a common perl implementation bug on windows.
209 - use unix domain sockets in testsuite to work around
210 common perl implementation bugs on widows (they are emulated by
211 tcp sockets on windows. ugh.)
212
2134.71 Sat May 24 20:01:27 CEST 2008
214 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
215 - take advantage of async name resolution of AnyEvent::Util.
216 - work around brutal inet_aton override in Coro::LWP.
217 - take advantage of the readyhook in Coro::EV, for smoother
218 scheduling.
219
2204.7 Sun May 11 00:32:19 CEST 2008
221 - completely reworked the Coro manpage.
222 - added Coro::AnyEvent, generic event loop integration.
223 - implement cancel, ready and kill commands in Coro::Debug.
224 - document find_coro in Coro::Debug.
225 - incompatible change: rename has_stack to has_cctx.
226 - Coro::AIO and Coro::BDB no longer force event model detection,
227 use AnyEvent::AIO and AnyEvent::BDB.
228
2294.6 Sat Apr 26 10:05:14 CEST 2008
230 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
231 by the Coro module. It was a mistake to have it in the first place.
232 - (experimental) support for activestate perl 5.10 (method "w").
233 - (experimental) support for strawberry perl (method "a").
234 - coro_sigelem_set did not return a value although it had to,
235 actual impact unknown.
236
2374.51 Mon Apr 14 13:28:27 CEST 2008
238 - make it compile again on 5.8.
239
2404.50 Thu Apr 10 09:43:17 CEST 2008
241 - I did it twice! (see 4.49).
242
2434.49 Sun Apr 6 21:23:31 CEST 2008
244 - grr, instead of compiling the recent changes on 5.10 only they
245 were compiled on 5.8 only.
246
2474.48 Sun Apr 6 20:36:46 CEST 2008
248 - allow coroutine switches during eval's under 5.10.x, as it seems
249 the parser is a per-interpreter option now, so this is safe
250 (this might fix the odd crashing bug).
251 - drop support for 5.9.x versions: they are dead, jim.
252
2534.47 Sun Apr 6 00:37:52 CEST 2008
254 - force cctx allocation on API calls: we know we need to force one
255 and gcc actually manages to confuse our heuristic nowadays,
256 leading to crashes and worse.
257 - document force_cctx.
258
2594.46 Fri Apr 4 22:05:43 CEST 2008
260 - upgrade libcoro, resulting in pthread-backend (which was only created
261 to fulfill the rules of the programming languages shootout).
262
2634.45 Thu Mar 13 11:55:36 CET 2008
264 - fix a file leaking bug in eg/mhyttpd that would allow
265 downloading of any file (reported by oesi).
266 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
267 (also add testcase).
268 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
269 apparently having loads of fun with that).
270 - implement $state->swap_defsv, ->swap_defav and document ->throw.
271
2724.4 Wed Feb 13 16:44:29 CET 2008
273 - only assume .cfi pseudo isns exist on GNU/Linux.
274 - add get_timed method to Coro::Channels.
275 - fixed Coro::Debug manpage.
276 - perl 5.11 compatbility improvement based on patch by
277 Andreas König.
278
2794.37 Sun Jan 20 11:25:23 CET 2008
280 - soften the check for an active parser for perl 5.10 (avoiding
281 "Coro::State::transfer called while parsing" in many cases).
282
2834.36 Sun Jan 13 10:53:56 CET 2008
284 - reset diehook when terminating from an async_pool as to not
285 trigger any __DIE__ handlers.
286
2874.35 Sun Jan 13 04:14:13 CET 2008
288 - "bt" debug command now displays any exceptions
289 from longmess and also skips the innermost
290 stackframes, giving more useufl output.
291 - allow backtraces in coroutines blocked in Coro::EV,
292 at a <1% speed hit.
293 - handle localising of $SIG{__WARN__} and __DIE__
294 properly (with a proper amount of dirty hacking).
295
2964.34 Sat Dec 22 17:49:53 CET 2007
297 - upgrade to EV version 2.0 API.
298
2994.33 Mon Dec 17 08:36:12 CET 2007
300 - make Coro::AIO etc. loadable in the absence of EV.
301
3024.32 Mon Dec 17 07:46:02 CET 2007
303 - majorly improved Coro::Handle's performance with Coro::EV.
304 - implemented the until now mythical Coro::BDB module.
305 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
306
3074.31 Wed Dec 5 12:32:39 CET 2007
308 - remove warn statement form Coro::Util.
309
3104.3 Tue Dec 4 20:33:14 CET 2007
311 - calls to the idle function could cause stack corruption
312 when the stack changed.
313 - do no longer rely on the presence of EV::DNS if EV is used
314 (because it is gone), but instead take avdantage of EV::ADNS
315 if available.
316 - add ($) prototypes to all functions in Coro::Storable.
317 - use a conventional (safer) idle callback in Coro::EV.
318 - do accept quickly in Coro::Debug to avoid endless loops.
319
3204.22 Fri Nov 30 16:04:04 CET 2007
321 - really use optimised versions for Event and EV in Coro::Util
322 and Coro::Handle.
323
3244.21 Sun Nov 25 10:48:59 CET 2007
325 - fix a spurious memory read.
326 - Coro::EV no longer keeps the eventloop "alive".
327
3284.2 Fri Nov 9 20:47:05 CET 2007
329 - enable/disable tracing from a new coroutine, not a pooled one.
330 - fix a memleak in Coro::Event.
331 - removed killall call from fork_eval.
332 - made sure store_fd is already loaded so that fork_eval
333 does not have to parse autoload in each subprocess.
334 - only use assembly method if -O switch is in $Config{optimize}.
335 - add (optional) Coro::EV module, so far the best event loop module
336 directly supported by Coro.
337 - if the event model is EV, use EV::DNS to resolve
338 stuff in Coro::Util.
339 - don't get confused by multiple event notifications in Coro::Handle.
340 - initial support for EV (libevent interface).
341 - require Event and EV using configure_requires, to force their existance.
342
3434.13 Wed Oct 24 07:26:45 CEST 2007
344 - add Coro::Storable::blocking_thaw.
345 - use a vastly more complicated technique to localise
346 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
347 - use a coroutine for the idle callback Coro::Event,
348 instead of running Event in the current coroutine context.
349 This also catches recursive invocations.
350 - actually report fork errors in gethostbyname and inet_aton.
351
3524.11 Thu Oct 11 02:40:24 CEST 2007
353 - port to threaded perls.
354
3554.1 Thu Oct 11 02:38:16 CEST 2007
356 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
357 be local to each coro (see Coro::State).
358 - incompatible change: for very deep reasons, cede and cede_notself
359 cannot return anything, so nothing will be returned.
360 - possibly bring back 5.10 compatibility (untested).
361 - work around stupid (and wrong) warning on 5.10 :(.
362 - overlay the saved state over the context stack. This saves
363 a few hundred bytes per coroutine on average and also
364 speeds up context switching a bit.
365 - further tune default stack sizes.
366 - (more) correctly calculate stack usage in coro_rss.
367 - Coro::Storable::blocking_* did not properly lock
368 resulting in races between coroutines.
369 - added Coro::Storable::guard.
370 - stopping to trace a coroutine could destroy the cctx of
371 an unrelated coroutine.
372 - explain the relationship between Perl and C coroutines in
373 more detail in Coro::State.
374 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
375 causing a fork per resolve. This also affected Coro::Socket.
376 - switch to a separate stack in $coro->call/eval to avoid
377 invalidating pointers.
378
3794.03 Sat Oct 6 21:24:00 CEST 2007
380 - added Coro::throw method.
381 - minor code cleanups.
382
3834.02 Sat Oct 6 02:36:47 CEST 2007
384 - fix a very minor per-coroutine memleak (a single codereference).
385 - fixed a bug where the currently in-use c context would be freed
386 prematurely (can happen only when programs change the stacksize
387 or use tracing).
388 - tracing can no longer keep a coro alive after it terminated.
389 - do static branch prediction in the common path for gcc. gives
390 about 2-5% speed improvement here.
391
3924.01 Fri Oct 5 22:10:49 CEST 2007
393 - instead of recreating *a* standard output handle we simply
394 use STDOUT, which is faster and hopefully more robust.
395
3964.0 Fri Oct 5 12:56:00 CEST 2007
397 - incompatibly changed Coro::Storable::freeze.
398 - major new feature: added Coro::Debug, for interactive coroutine
399 debugging, tracing and much more.
400 - major bug fix: unbelievable, but true: $_, $/ and many other
401 "saved" variables actually weren't being saved. This has been fixed,
402 of course, while increasing performance while losing all the save
403 flags.
404 - save flags are gone, and all the api functions dealing with them.
405 - added Coro::Semaphore::adjust.
406 - added Coro::Util::fork_eval.
407 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
408 - added Coro::killall.
409 - reduce initial stack sizes to allow for "micro-coroutines".
410 - better async_pool resource management, moved parts of async_pool
411 handling to XS (major speed improvement).
412 - actually croak before modifying important data structures.
413 - refuse to transfer while compiling.
414 - possibly support eval EXPR better now.
415 - enable assembly per default on linux+bsd x86+amd64.
416 - all internal members were renamed _something for easier subclassing.
417 - many minor tweaks.
418
4193.63 Wed May 16 14:10:06 CEST 2007
420 - implement handcoded assembly for x86/amd64 SVR ABI.
421
4223.62 Fri Apr 27 21:36:06 CEST 2007
423 - upgrade libcoro (which might set unwind info correctly).
424 - change default on linux to setjmp/longjmp.
425
4263.61 Thu Apr 19 12:36:18 CEST 2007
427 - Coro::Storable caused an endless loop when thawing invalid
428 pst's sometimes.
429 - use a Semaphore in Coro::Storable, as Storable doesn't
430 seem to be reentrant (although it is documented to
431 be threadsafe...).
432 - fix Coro::Signal to bring back the original unreliable
433 but stateful semantics.
434 - fixed a lot of typos in Coro.pm (patch submitted by David
435 Steinbrunner, which applied flawlessly).
436
4373.6 Sat Apr 14 17:13:31 CEST 2007
438 - added some bugfixes to get eg/myhttpd working again.
439 - added Coro::Storable for often-cede'ing freeze/thaw.
440 - try to do a clean exit when a coroutine calls exit
441 (EXPERIMENTAL).
442 - got rid of indirect call through _coro_init.
443 - updated the partly antique examples in eg/ to
444 work again and be a bit less magic, too.
445 - fixed Coro::Signal semantics to work as documented again.
446
4473.55 Sun Mar 25 01:20:47 CET 2007
448 - add SAVE_DEFFH to save the default filehandle and enable
449 it by default.
450 - finally move socket-operations from Coro::Socket to Coro::Handle
451 to be able to unblock foreign sockets.
452 - add Coro::State::save_also and guarded_save.
453 - add count accessor to Coro::Semaphore.
454 - add Coro::State::cctx_stacksize.
455 - just for the fun of it, do not rely on implicit context,
456 which can dramatically improve performance, but people
457 using windows-process-emulation perls do not care much about
458 performance.
459
4603.51 Sun Mar 4 14:18:04 CET 2007
461 - fixed a problem when you weakened references to Coro::State's
462 (patch by Yuval Kogman).
463
4643.501 Wed Feb 28 12:44:07 CET 2007
465 - rename some global symbols as macosx from hell redefines
466 them without asking.
467
4683.5 Tue Feb 13 20:22:53 CET 2007
469 - do AnyEvent model detection earlier, avoiding problems
470 caused by first using AnyEvent and later Coro::Event.
471 - implement and document Coro::Event event objects.
472 - fix a potential problem in Coro::Event causing crashes.
473 - initialise PL_comppad when creating a new coroutine,
474 avoids crashes on early coro destruction.
475
4763.41 Mon Jan 22 19:19:49 CET 2007
477 - readline on Coro::Handle did not support undefined $/,
478 nor did it deliver partial lines on EOF or error.
479 - implement malloc fallback for stack allocation because
480 stupid broken idiotic OSX has a stupid broken
481 idiotic fits-the-whole-os mmap "implementation" and
482 my dick feels longer if Coro is portable even to
483 obsolete platforms.
484
4853.4 Fri Jan 19 21:52:54 CET 2007
486 - remove t/09_timer.t, as it isn't really testing much
487 but was rather flaky in practise.
488 - async_pool coro would keep arguments and callback alive until
489 it was reused.
490 - cancellation of a coroutine could cause spurious idle calls
491 in cede_notself.
492
4933.3 Sat Jan 6 03:45:00 CET 2007
494 - implement $coro->on_destroy.
495 - Coro::Event blocking semantics have been changed,
496 documented and - hopefully - improved.
497 - fix nice adding, not subtracting, from priority.
498 - fix ->prio and api_is_ready (patch by Mark Hinds).
499 - fixed an assert ("... == prev__cctx->idle_te")
500 that could errronously trigger.
501 - fix various large and small memleaks.
502 - use a (hopefully) more stable cancel implementation
503 that immediately frees the coroutine data.
504 - cede/cede_notself return a status now.
505 - added Coro::guard function.
506 - added a global coroutine pool for jobs (on my machine,
507 I can create and execute 48k simple coros/s with async,
508 and 128k coros with async_pool).
509 - Coro::AIO now uses the coroutine priority as io priority.
510
5113.2 Fri Dec 22 05:07:09 CET 2006
512 - improve portability to slightly older perls.
513 - use cleaner coroutine destruction.
514 - simplify configuration for users.
515 - optionally (unrecommended) prefer perl functions over
516 their coro replacements.
517
5183.11 Tue Dec 5 13:11:24 CET 2006
519 - fixed some bogus assert's, but as perl.h disables assert even
520 without NDEBUG (thank you very much), not too many people should
521 notice (that did include myself). Andreas König noticed, though :)
522 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
523 it. Also noticed by Andreas König :)
524 - save/restore tainted status.
525 - verified to pass the testsuite on my 5.9.5.
526
5273.1 Mon Dec 4 23:03:40 CET 2006
528 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
529 - incompatible change: transfer flags are now per-state.
530 - give a better error message on deadlock.
531 - document Coro::nready.
532 - enhanced testsuite.
533
5343.01 Sun Dec 3 23:47:42 CET 2006
535 - forgot to include Coro::Timer.
536
5373.0 Sun Dec 3 22:57:25 CET 2006
538 - the "FINALLY COMPLETELY STABLE" release (coming soon:
539 the "FAMOUS LAST WORDS" release).
540 - implement a new stack sharing algorithm, which uses a stack
541 pool (size currently hardcoded).
542 - make stack sharing mandatory (it no longer uses a heuristic).
543 - eval/die no longer cause weird problems under heavy use.
544 - Coro::Event could cause livelocks if it was used but
545 no Coro::Event watchers were used.
546 - Coro::Event now uses asynccheck as prepare does not
547 check for changed watchers.
548 - Coro::Event allows multiple waiting coros and will wake up one
549 per event.
550 - Coro::Event should be cleaner and more efficient now.
551 - new utility function Coro::unblock_sub.
552 - document the sad fact that Event is no longer reentrant.
553 - putting a coroutine into the ready queue twice could under
554 some circumstances lead to stack corruption.
555 - minor incompatibility: subclassing Coro::State is supported
556 directly now without going through a _coro_state member.
557 - state/coro switching is much faster now.
558 - very minor optimisations and code/documentation cleanup.
559 - avoid problems due to compiler inlining.
560 - removed timers from Coro::Timer -> use AnyEvent instead.
561 - replaced Coro::idle coroutine by (cleaner) idle handler.
562 - updated to newest libcoro.
563 - implement enhanced support for valgrind.
564 - implement is_ready and return value for ready.
565 - removed Coro::Cont, it was a misnomer (it's generators),
566 and it was somewhat annoying to get it right. Will come back
567 if somebody asks for it :)
568 - many ->wait methods and Coro::Event could return
569 spuriously without the event having happened.
570
5712.5 Tue Nov 7 12:22:33 CET 2006
572 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
573 use AnyEvent, moved them to Coro/.
574 - added Coro::LWP which contains all the uglyness required to
575 make LWP non-blocking.
576 - should work with perl 5.9.x now (Andreas König made me do it).
577 - fixed another bug in Coro::Select when the timeout was undef.
578 - reuse PL_start_env for all coros, saves some memory per coroutine.
579 - manage PL_top_env differently, hopefully to avoid panic: top_env.
580 - timeout argument was not properly used in Coro::Socket.
581 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
582 - emulate undocumented(!) functionality of IO::Socket required
583 by LWP(!!).
584 - updated eg/lwp to work with newer lwp's.
585 - remove "FATAL: uncaught exception" prefix. Coroutines that die
586 kill the whole process, just as exceptions in the main "coroutine"
587 did already.
588
5892.1 Wed Nov 1 23:01:13 CET 2006
590 - fix a long-standing bug in Coro::Select where select with
591 zero timeout would instead change the current default filehandle.
592 - use a simpler and hopefully more robust way to clone padlists
593 (uses less memory and a perl function instead of our own).
594 - coro can now create a stack guard area on many architectures.
595 - Coro::AIO properly reexports additional functions from IO::AIO.
596 - updated libcoro with a workaround for OS X,
597 pach and testing by Michael Schwern.
598
5992.0 Tue Oct 24 05:47:17 CEST 2006
600 - support additional aio requests in Coro::AIO.
601
6021.9 (never properly released due to a glitch)
603
6041.8 Thu Feb 2 00:59:06 CET 2006
605 - applied suggested patch by SAMV to avoid problems during stupid
606 mark & sweep gc run.
607 - applied patch by Scott Walters for 5.9.3 compatibility.
608
6091.7 Tue Dec 27 01:41:58 CET 2005
610 - added Coro::AIO, a thin wrapper around IO::AIO.
611 - improved Makefile.PL explanations.
612
6131.6 Mon Dec 12 21:30:05 CET 2005
614 - additionally save PM_curpm might fix as-of-yet
615 unseen problems with regex matches being attributed to the
616 wrong package.
617 - add t/10_bugs.t, which currently checks against imho broken
618 perls that use 0.26MB of stack space per Perl_magic_get
619 invocation (newer linuxes) as opposed to the 0.0002MB perl
620 normally uses.
621 - make stacksize configurable for the ultimate debian experience.
622
6231.51 Mon Dec 12 18:48:36 CET 2005
624 - remove debugging warn() accidentally left in Coro::Select.
625
6261.5 Tue Nov 29 13:32:44 CET 2005
627 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
628 - fix Coro::Select 'select'.
629 - strict'ify some modules.
630 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
631 - use XSLoader in selected modules.
632 - remove some 5.6 compatibility cruft.
633
6341.4 Tue Sep 6 00:11:05 CEST 2005
635 - libcoro did not take into account the trampoline on amd64,
636 when 'l'inux method was used.
637
6381.31 Tue Aug 30 23:31:33 CEST 2005
639 - some portability fixes/workarounds.
640
6411.3 Sat Aug 20 03:08:56 CEST 2005
642 - no code changes. module seems to work fine.
643 - improve Coro::State docs, remove reference to nonexisting
644 Coro::State::flush method.
645 - no longer autodetect windows, present it as an option instead.
646
6471.2 Mon May 16 02:00:55 CEST 2005
3 - included libcoro.c earlier in State.xs, might improve portability. 648 - included libcoro.c earlier in State.xs, might improve portability.
649 - use a faster and possibly more stable Coro::Cont implementation.
650 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
651 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
652 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
4 653
51.11 Thu Mar 3 18:00:52 CET 2005 6541.11 Thu Mar 3 18:00:52 CET 2005
6 - change of contact address. 655 - change of contact address.
7 656
81.1 Tue Feb 22 20:51:16 CET 2005 6571.1 Tue Feb 22 20:51:16 CET 2005
9 - support [l]inux method on amd64. 658 - support [l]inux method on amd64.
10 - make some context switches while compiling/eval'ing work. 659 - allow some context switches while compiling/eval'ing.
11 660
121.0 Tue Aug 10 03:47:27 CEST 2004 6611.0 Tue Aug 10 03:47:27 CEST 2004
13 - Event 0.89 fixes the bug again. 662 - Event 0.89 fixes the bug again.
14 - fix the remaining(??) memleak. I didn't free the cache-AV for 663 - fix the remaining(??) memleak. I didn't free the cache-AV for
15 padlists, so one AV per created anon-sub leaked. 664 padlists, so one AV per created anon-sub leaked.
16 665
170.97 Fri May 14 15:23:32 CEST 2004 6660.97 Fri May 14 15:23:32 CEST 2004
18 - remove stupid gcc extension that was an experiment only anyway. 667 - remove stupid gcc extension that was an experiment only anyway.
19 668
200.96 Thu May 13 18:09:29 CEST 2004 6690.96 Thu May 13 18:09:29 CEST 2004
21 - tell people if they have yet anothe rbroken Event variant. 670 - tell people if they have yet another broken Event variant.
22 - made Coro to work _better_ with threads (it seems that, as long 671 - made Coro to work _better_ with threads (it seems that, as long
23 as you use Coros in one thread only everything will work fine. 672 as you use Coros in one thread only everything will work fine.
24 Looking at the perl source the problem might be missing locking 673 Looking at the perl source the problem might be missing locking
25 between Coro and some perl internal routines. That's not easily 674 between Coro and some perl internal routines. That's not easily
26 fixable). 675 fixable).

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