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Comparing Coro/Changes (file contents):
Revision 1.107 by root, Sat Aug 20 01:09:19 2005 UTC vs.
Revision 1.557 by root, Sat Apr 30 05:17:42 2011 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: channel->maxsize(newsize)?
5TODO: http://www.microsoft.com/msj/archive/s2ce.aspx
6
7 - implement Coro->cancel in XS for a 20% speed improvement, and to
8 be able to implement mutual cancellation.
9 - cancelling a coro while it itself is cancelling another coro is
10 now supported and working, instead of triggering an assertion.
11 - be a bit more crash-resistant when calling (buggy) on_destroy
12 callbacks (best effort).
13
145.372 Wed Feb 23 06:14:30 CET 2011
15 - apparently mingw doesn't provide a working gettimeofday, try to
16 work around that by relying on Time::HiRes (indirectly brought to
17 my attention by Max Maischein).
18 - fix some portability issues when Time::HiRes was used.
19
205.371 Mon Feb 21 14:36:08 CET 2011
21 - backport to windows process emulation code again.
22
235.37 Sat Feb 19 07:49:44 CET 2011
24 - add a big "Coro thread life cycle" section to "man Coro".
25 - try a tentative workaround against the breakage that 5.13 has
26 introduced without depreciation period. sigh.
27 - no longer use Time::HiRes if gettimeofday is available, which
28 saves quite a lot of memory.
29
305.36 Sun Feb 13 05:33:41 CET 2011
31 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
32 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
33 method call.
34 - undocument Coro::Timer::sleep and obsolete whole module.
35 - optimise Coro::Timer::timeout memory and cpu usage.
36 - slightly updated Coro::Intro for recent changes.
37 - do not initialise PL_dirty anymore.
38
395.25 Thu Nov 11 01:08:39 CET 2010
40 - try a different approach on netbsd - netbsd 5 finally has marginally
41 working pthreads, but still broken ucontext/sigaltstack.
42 - openbsd 4.8 finally got their act together, Coro works out of the box
43 with asm, setjmp and pthreads (no change, just informational).
44
455.24 Sat Oct 23 11:27:12 CEST 2010
46 - port to the EV 4.0 API.
47 - work around bugs in mingw32, making strawberry perl work
48 out of the box.
49 - correctly modify Coro::AIO function prototypes
50 so that they reflect the "no optional parameters" rule.
51 - "ported" libcoro to C++.
52
535.23 Mon May 17 18:50:42 CEST 2010
54 - be more resistant to ordering changes when initialising
55 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
56 Waldorf).
57 - document that perl 5.12 deliberately removed support for cloning.
58
595.22 Wed Apr 14 03:55:35 CEST 2010
60 - correctly return udnef on errors in Coro::Handle::read/write
61 (testcase by Marc Mims).
62 - convert Coro::Util into a "perl compatibility wrapper" - the functions
63 are less useful now, but are drop-in replacements for existing
64 functions, listing better alternatives in the documentation. This also
65 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
66 with Coro::Util::inet_aton.
67 - do not override $Coro::idle unconditionally in Coro.pm, as other
68 modules could have provided their own idle coro already
69 (for exmaple, Coro::AnyEvent).
70 - fix Coro::Util::gethost* functions.
71 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
72
735.21 Wed Dec 16 07:19:51 CET 2009
74 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
75 together.
76 - add some examples on how to combine other event loops with Coro in
77 Coro::AnyEvent, and how to run it (and not to block). Seems to be
78 the most common source of confusion.
79 - try to catch people naively blocking in an event callback.
80 - work around the perl filehandle bug issue in conjunction with
81 older common::sense (as indirectly pointed out by ZSystem).
82 - clarify the "not from signal handlers" section.
83
845.2 Sun Oct 4 14:54:24 CEST 2009
85 - Coro::Storable destroyed the prototypes of the functions it wrapped.
86 - export rouse_cb and rouse_wait by default now.
87 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
88 - new method $state->swap_sv.
89 - added section on "windows process emulation" to the manpage,
90 after a not-so-fruitful (nor-friendly) "discussion" with chip
91 salzenberg (discussion implies arguments, but his only arguments
92 were ad-hominems, one wonders why he started it in the first
93 place). I hope this explains it well enough for him to understand,
94 and maybe well enough for others to understand.
95 - use common::sense everywhere now.
96 - idle callbacks are no longer supported, use idle coros instead.
97 - print a thread listing when a deadlock is detected.
98
995.17 Sat Aug 22 23:09:31 CEST 2009
100 - work around a bug in the perl debugger causing crashes
101 when running under the debugger by marking _pool_handler as nodebug.
102 - speed up Coro::async considerably.
103 - try some hacks to get netbsd to work "more often" - their broken
104 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
105 - convert Coro to AE 5.0 API.
106
1075.162 Tue Jul 28 04:04:03 CEST 2009
108 - perl 5.8.2 is now minimum requirement.
109 - skip t/19_handle.t on broken windows perls.
110
1115.161 Wed Jul 22 04:47:38 CEST 2009
112 - Coro::AnyEvent::poll could have a different prototype when EV was
113 used as backend (analyzed by Tatsuhiko Miyagawa).
114 - Coro::AnyEvent errornously initialised the event loop when loaded,
115 not on demand.
116 - try to workaround rare */t/01_unblock.t failures.
117
1185.16 Tue Jul 21 01:44:37 CEST 2009
119 - Coro::AnyEvent failed to hook into the event loop
120 when no threads had been readied between detecting
121 the event loop and actually running it.
122 - considerably speed up Coro::Select by taking avdantage
123 of AnyEvent > 4.8 and some other optimisations.
124 - implement paragraph readline mode in Coro::Handle
125 (based on patches by Zsbán Ambrus).
126 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
127 and analyzed by Yasuhiro MATSUMOTO).
128 - clarified libcoro license and copyright.
129 - someone stole my EXTRA_META!!!
130 - implement Coro::Select::patch_pp_sselect and it's brother,
131 for hardcode select overriding.
132
1335.151 Mon Jul 6 05:41:57 CEST 2009
134 - backport to windows process emulation code again (patch by
135 Yasuhiro MATSUMOTO).
136 - slightly update Coro::MakeMaker.
137
1385.15 Tue Jun 30 10:28:06 CEST 2009
139 - deprecate Coro::Socket, document how to get ipv6 support via
140 AnyEvent::Socket instead.
141 - implement signal->wait ($cb) interface, similar to semaphores.
142 - work around SvOK not supporting getmagic, so we have to getmagic
143 to test for undef :/ (reported by Matthias Waldorf).
144 - load Coro::AnyEvent in all modules using AnyEvent.
145 - work around perl corrupting our internal data structures,
146 reported by Tokuhiro Matsuno.
147 - enable per-coroutine real and cpu time gathering
148 (Coro::State::enable_times).
149
1505.14 Wed Jun 24 01:37:48 CEST 2009
151 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
152 as this seems to have been a difficult concept (poll, sleep, idle,
153 idle_upto).
154 - add Coro::AnyEvent::readable/writable functions.
155 - clarify Coro::EV/Event/AnyEvent manpages.
156 - free per-thread global scalars in the thread calling ->cancel, to
157 avoid crashes when $_, $@ etc., are magical but some of those
158 had already been freed.
159 - "unexperimentalise" the callback interface for Coro::Semaphore.
160 - speed up ready queue management/context switching by using a linked
161 list instead of an array (~5-10%).
162 - implement "watch" command in Coro::Debug shells.
163 - for fun, implement time-slicing as an example in the manpage.
164 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
165 Coro::Event, use the normal AnyEvent handling instead of dieing
166 (the same is true for Coro::Handle).
167 - properly document Coro::EV::timed_io_once.
168 - avoid unneccessary ->cancel calls in Coro::Handle.
169 - maybe make it work on mingw32 with win32 backend
170 (based on patch by Yasuhiro Matsumoto).
171
1725.132 Fri May 29 09:00:39 CEST 2009
173 - do not keep a reference to the argument itself in
174 Coro::Semaphore::guard, as it could change later.
175 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
176 should support a prepare callback.
177
1785.131 Mon Mar 16 23:20:37 CET 2009
179 - implement and document Coro->suspend, Coro->resume.
180 - fix Coro::Select implementation to not (often) close
181 the passed file descriptors (testcase provided by pippijn).
182
1835.13 Mon Dec 15 21:51:42 CET 2008
184 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
185 - don't set diehook to C<undef> but instead to NULL, to avoid
186 spurious warnings.
187 - fix a lot of bugs in Coro::SemaphoreSet.
188 - Coro::SemaphoreSet will less often create a semaphore needlessly.
189 - add Coro::SemaphoreSet::count and wait methods.
190 - take advantage of the new Guard module.
191 - deprecate Coro::guard.
192 - try to fix the dreaded 01_unblock tests once more. I hate it when
193 testsuites need more fixing than the code they are supposed to test.
194 - croak in more cases when a required callback isn't resolvable.
195 - fix some minor issues in Coro::State->call/eval.
196 - use current coroutine context instead of a temporary one
197 when temporarily switching to another coroutine.
198 - do not call C-level on_destroy handlers during global destruction,
199 to avoid needless segfaults.
200
2015.12 Sun Dec 7 13:30:38 CET 2008
202 - add default config for MirOS, which seems to be a bug-to-bug
203 compatible fork of openbsd ("world domination by releasing
204 openbsd cvs before the openbsd folks do it" or so :).
205 - free_padlist did destroy the names pad, not good, but didn't
206 seem to bother perl - this could fix issues such as eval ""
207 inside a function called from multiple coroutines.
208 - use a different method to detect destruction time.
209 - be more careful when freeing padlists just before global
210 destruction.
211 - fixed and expanded the call/cc example.
212 - renamed _terminate to _coro_run.
213 - new method Coro::Channel->shutdown.
214 - try pthreads on openbsd <4.4 (broken sigaltstack, will
215 pthreads fare better?).
216 - be less picky about destroying "a" running coroutine.
217
2185.11 Tue Nov 25 21:49:05 CET 2008
219 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
220 working code with failed assertions, introducing more bugs than
221 it fixes, requiring elaborate workarounds :(
222
2235.1 Mon Nov 24 08:54:59 CET 2008
224 - wrote a small introductory tutorial - Coro::Intro.
225 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
226 - Coro::Select did errornously dup the file descriptors
227 and didn't work with all AnyEvent backends.
228 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
229 LWP data transfers.
230 - disassociate c contexts from coro objects - this is agruably more
231 correct, but mostly allows sharing of cctxs between coro and state
232 objects, for added memory savings and speed increases.
233 - bumped $Coro::POOL_RSS up to 32kb by default.
234 - no longer set the optype to OP_CUSTOM, as B::* understandably
235 doesn't like this very much (and we *are* a type of entersub).
236 - implement state cloning, just to prove that call/cc can be done.
237 - automatically load Coro::AnyEvent in Coro::Handle.
238 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
239 do not have this method (and don't need it either).
240 - speed up generic anyevent methods in Coro::Handle by using rouse
241 callbacks.
242 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
243 others. It also makes the debugger happier, as you can trace
244 through the idle threads now.
245 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
246 - eg/event was pretty broken.
247 - better 5.8.6 compatibility.
248
2495.0 Thu Nov 20 10:35:05 CET 2008
250 - NEW ARCHITECTURE: use the latest 4.x version if you experience
251 stability issues.
252 - bump API version to 7 - all dependents must be recompiled.
253 - removed timed_* functions - they were not being used anyways
254 and should be replaced by a more generic mechanism -
255 and were annoying to support anyways :)
256 - removed SemaphoreSet's waiter method - use sem method instead.
257 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
258 - async_pool did free a scalar value twice
259 ("Attempt to unreference...").
260 - fix a longstanding bug where calling terminate on a coro that
261 was waiting for a semaphore that was just becoming available
262 would cause a deadlock (semaphore would get into a state where
263 it was available but waiters were still blocked).
264 - calling throw on a coroutine that is waiting for a semaphore will
265 no longer make it acquire the semaphore (and thus leak a count).
266 - perl's process emulation is now not even theoretically supported
267 anymore.
268 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
269 conversion of callback-style to blocking-style.
270 - new methods $coro->schedule_to and ->cede_to, to specifically
271 schedule or cede to a specific coroutine.
272 - new function Coro::Semaphore::wait.
273 - use named constants in Coro::Channel (Richard Hundt).
274 - directly patch the entersub opcode calling SLF functions (cede,
275 transfer and so on). this does speed up context switching, but
276 more importanly, it frees us from the hardcoded behaviour of
277 entersub, so we might actually be able to return something from
278 those functions and atcually create new ones.
279 - take advantage of __builtin_frame_address on gcc.
280 - expose THX in coroapi (not sure whether this was a wise decision,
281 as "threaded" perls are running at half speed anyways).
282 - implement execute_slf (schedule-like-function) interface that makes
283 it possible to implement schedule-like-functions in XS.
284 - use new SLF interface to massively speed up Coro::EV by roughly a
285 factor of two.
286 - used new SLF interface to massively speed up Coro::Semaphore by a
287 factor of three.
288 - used new SLF interface to speed up Coro::AIO by roughly a factor of
289 four and reduce its memory usage considerably.
290 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
291 for a nice speedup and vastly more correct behaviour. Also implement
292 a new method "sem" to get at the underlying semaphore object.
293 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
294 (in comparison) 20-40% speedup.
295 - used new SLF interface to reimplement Coro::Signal gaining
296 some unknown (because I was too lazy), but certain, speedup, and also
297 making signals reliable for the first time.
298 - used new SLF interface and other optimisations to speed up async_pool
299 by a factor of two. It also doesn't rely on perl's exception mechanism
300 to exit anymore. The overhead for terminating an async_pool, coro over
301 a normal async is now very small.
302 - sped up coroutine creation/destruction by 40%.
303 - forgot to include Coro/libcoro/README in the dist for all these years.
304 - work around a freebsd pthreads bug (manual testcancel is required as
305 pthread_cond_wait isn't a cancellation point on freebsd).
306 - use new rouse functions to speed up and simplify Coro::BDB.
307 - make "prefer perl native functions" work with threaded perls.
308 - condense Coro::Debug ps output, hint at v and w flags.
309 - (libcoro) lots of minor cleanups and portability improvements.
310
3114.914 Wed Nov 19 12:54:18 CET 2008
312 - fix a disastrous bug in the readline optimisation
313 introduced in 4.801.
314
3154.913 Sat Nov 15 07:58:28 CET 2008
316 - async_pool did free a scalar value twice
317 ("Attempt to unreference...").
318
3194.912 Thu Nov 13 18:31:23 CET 2008
320 - minor cleanups.
321 - use much larger stacks on linux and perl < 5.8.8.
322 - Coro::Debug::new_unix_server did not unlink the socket
323 when destroyed.
324
3254.911 Tue Nov 11 04:26:17 CET 2008
326 - "port" to threaded perls.
327
3284.91 Mon Nov 10 05:36:38 CET 2008
329 - the ->throw exception object no longer leaks.
330 - creating a new cctx leaked a scopestack entry (memleak).
331 - new coroutines didn't get created with a zero flags field
332 (unknown impact).
333 - calling ->throw on a not-yet-started coroutine should now work
334 instead of being ignored.
335 - ->throw is now supported on Coro::State objects.
336 - clean up cctx creation code a bit.
337 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
338
3394.9 Sat Nov 8 17:45:27 CET 2008
340 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
341 - (libcoro) no longer leak threads in the experimental pthread backend,
342 also speed it up considerably.
343 - (libcoro) do not rely on makecontext passing void *'s unscathed.
344 - fix compiletime dependencies on libcoro in the Makefile.
345 - cctx_count wasn't always updated properly.
346 - Coro::State::cctx_stacksize wasn't applied correctly.
347 - new function Coro::State::cctx_max_idle.
348 - the default max number of idle C contexts is now 4.
349 - (libcoro) try harder to get _setjmp/_longjmp.
350 - (libcoro) cleanup and extend the libcoro API to officially
351 allow the creation of empty source contexts.
352 - very experimental workaround for the totally broken netbsd platform.
353 - tried to hack around openbsd bugs.
354
3554.804 Wed Nov 5 16:36:00 CET 2008
356 - Coro::Debug::new_unix_server would not create a non-blocking listening
357 socket, sometimes causing freezes.
358 - (libcoro) fix misaligned stack points for setjmp and assembly
359 methods, which can cause crashes on x86/x86_64 with a sufficiently
360 aggressive compiler.
361 - new function: Coro::Debug::new_tcp_server.
362 - move ->throw into the Coro class because it only works on coro objects.
363
3644.803 Mon Nov 3 17:16:12 CET 2008
365 - (libcoro) use a global asm statement to become independent of gcc
366 otpimisations for CORO_ASM (thanks to pippijn for the idea).
367 - try to workaround yet another broken bsd, this time dragonfly.
368
3694.802 Thu Oct 30 10:56:12 CET 2008
370 - support -fno-omit-frame-pointer on x86 with the assembly method.
371 - tune 01_unblock.t tests a bit.
372
3734.801 Wed Oct 22 18:33:37 CEST 2008
374 - improve readline speed for very long "lines".
375 - backport to 5.8.8.
376
3774.8 Thu Oct 2 13:34:40 CEST 2008
378 - new function Coro::AIO::aio_wait.
379 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
380 - greatly speed up and reduce memory usage of Coro::AIO requests.
381 - implement some other µ-optimisations.
382
3834.749 Mon Sep 29 14:40:12 CEST 2008
384 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
385
3864.748 Sat Sep 27 14:03:19 CEST 2008
387 - implement, but do not document, PerlIO::cede(granularity).
388 - Coro::Storable forgot to wrap Storable::pstore.
389 - work around the multitude of leaks and memory corruption
390 bugs in PerlIO::via by using our own C-level perliol. As a side
391 effect, Coro::Storable is now much, much, much faster.
392
3934.747 Tue Sep 23 01:59:41 CEST 2008
394 - fix a per-cv memleak (one empty array was leaked per
395 code reference).
396 - avoid a crash in coro->call|rss when the coroutine was already
397 destroyed (most noticably when using Coro::Debug::ps :)
398 - also protect *Storable::FILE.
399 - push up default storable granularity to 20ms.
400
4014.746 Sun Sep 21 03:22:20 CEST 2008
402 - be more insistent on locking Storable against reentrancy
403 in Coro::Storable.
404 - move swap_def?v and throw to Coro::State, as documented.
405
4064.745 Thu Jul 24 00:14:38 CEST 2008
407 - remove debugging code related to MgPV_nolen_const, also try to
408 make it compile with perl 5.8.6 (yes, apple apparently loves
409 outdated software). Reported by John S.
410
4114.744 Tue Jul 8 22:06:35 CEST 2008
412 - correctly provide default DIE/WARN handlers as documented.
413 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
414 implementations inside perl work fine for us.
415
4164.743 Mon Jun 16 00:21:57 CEST 2008
417 - when using Coro::EV without running EV::loop it could
418 result in busy-waiting for events, this has been fixed.
419 - reduce codesize and improve performance by using EV_DEFAULT_UC.
420
4214.742 Sat May 31 14:10:21 CEST 2008
422 - implement a workaround for (some) perl <5.8.8 versions.
423 - require EV 3.3+.
424
4254.741 Fri May 30 23:33:09 CEST 2008
426 - tell netbsd how utterly broken their imitation of an OS is
427 and refuse to build by default if pthreads are in use.
428 - switch to "s" method on all bsd's by default, as their ucontext
429 stuff seems just too broken.
430 - fix a bug in Coro::Select.
431
4324.74 Thu May 29 20:05:31 CEST 2008
433 - do not test Coro::LWP for lack of dependencies.
434 - do not test Coro::Select for lack of working perls.
435
4364.73 Thu May 29 2008
437 - fix a bug in Coro::EV which would cause it to block despite
438 there being runnable coroutines.
439 - sprinkle "no warnings" freely over everything, also suppress
440 warnings for some other modules.
441 - fix typo in WSAEWOULDBLOCK.
442
4434.72 Sun May 25 05:14:36 CEST 2008
444 - tweak META.yaml a bit, unfortunately, there is no documented way
445 to have optional dependencies with CPAN. doh :(
446 - avoid running some tests on windows because they would fail due to
447 perl bug (broken fork, broken pipes...).
448 - work around perl on windows bugs where perl returns undocumented
449 error codes for sysread, syswrite etc. by taking advantage
450 of AnyEvent's workaround for that problem.
451 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
452 a common perl implementation bug on windows.
453 - use unix domain sockets in testsuite to work around
454 common perl implementation bugs on widows (they are emulated by
455 tcp sockets on windows. ugh.)
456
4574.71 Sat May 24 20:01:27 CEST 2008
458 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
459 - take advantage of async name resolution of AnyEvent::Util.
460 - work around brutal inet_aton override in Coro::LWP.
461 - take advantage of the readyhook in Coro::EV, for smoother
462 scheduling.
463
4644.7 Sun May 11 00:32:19 CEST 2008
465 - completely reworked the Coro manpage.
466 - added Coro::AnyEvent, generic event loop integration.
467 - implement cancel, ready and kill commands in Coro::Debug.
468 - document find_coro in Coro::Debug.
469 - incompatible change: rename has_stack to has_cctx.
470 - Coro::AIO and Coro::BDB no longer force event model detection,
471 use AnyEvent::AIO and AnyEvent::BDB.
472
4734.6 Sat Apr 26 10:05:14 CEST 2008
474 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
475 by the Coro module. It was a mistake to have it in the first place.
476 - (experimental) support for activestate perl 5.10 (method "w").
477 - (experimental) support for strawberry perl (method "a").
478 - coro_sigelem_set did not return a value although it had to,
479 actual impact unknown.
480
4814.51 Mon Apr 14 13:28:27 CEST 2008
482 - make it compile again on 5.8.
483
4844.50 Thu Apr 10 09:43:17 CEST 2008
485 - I did it twice! (see 4.49).
486
4874.49 Sun Apr 6 21:23:31 CEST 2008
488 - grr, instead of compiling the recent changes on 5.10 only they
489 were compiled on 5.8 only.
490
4914.48 Sun Apr 6 20:36:46 CEST 2008
492 - allow coroutine switches during eval's under 5.10.x, as it seems
493 the parser is a per-interpreter option now, so this is safe
494 (this might fix the odd crashing bug).
495 - drop support for 5.9.x versions: they are dead, jim.
496
4974.47 Sun Apr 6 00:37:52 CEST 2008
498 - force cctx allocation on API calls: we know we need to force one
499 and gcc actually manages to confuse our heuristic nowadays,
500 leading to crashes and worse.
501 - document force_cctx.
502
5034.46 Fri Apr 4 22:05:43 CEST 2008
504 - upgrade libcoro, resulting in pthread-backend (which was only created
505 to fulfill the rules of the programming languages shootout).
506
5074.45 Thu Mar 13 11:55:36 CET 2008
508 - fix a file leaking bug in eg/mhyttpd that would allow
509 downloading of any file (reported by oesi).
510 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
511 (also add testcase).
512 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
513 apparently having loads of fun with that).
514 - implement $state->swap_defsv, ->swap_defav and document ->throw.
515
5164.4 Wed Feb 13 16:44:29 CET 2008
517 - only assume .cfi pseudo isns exist on GNU/Linux.
518 - add get_timed method to Coro::Channels.
519 - fixed Coro::Debug manpage.
520 - perl 5.11 compatbility improvement based on patch by
521 Andreas König.
522
5234.37 Sun Jan 20 11:25:23 CET 2008
524 - soften the check for an active parser for perl 5.10 (avoiding
525 "Coro::State::transfer called while parsing" in many cases).
526
5274.36 Sun Jan 13 10:53:56 CET 2008
528 - reset diehook when terminating from an async_pool as to not
529 trigger any __DIE__ handlers.
530
5314.35 Sun Jan 13 04:14:13 CET 2008
532 - "bt" debug command now displays any exceptions
533 from longmess and also skips the innermost
534 stackframes, giving more useufl output.
535 - allow backtraces in coroutines blocked in Coro::EV,
536 at a <1% speed hit.
537 - handle localising of $SIG{__WARN__} and __DIE__
538 properly (with a proper amount of dirty hacking).
539
5404.34 Sat Dec 22 17:49:53 CET 2007
541 - upgrade to EV version 2.0 API.
542
5434.33 Mon Dec 17 08:36:12 CET 2007
544 - make Coro::AIO etc. loadable in the absence of EV.
545
5464.32 Mon Dec 17 07:46:02 CET 2007
547 - majorly improved Coro::Handle's performance with Coro::EV.
548 - implemented the until now mythical Coro::BDB module.
549 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
550
5514.31 Wed Dec 5 12:32:39 CET 2007
552 - remove warn statement form Coro::Util.
553
5544.3 Tue Dec 4 20:33:14 CET 2007
555 - calls to the idle function could cause stack corruption
556 when the stack changed.
557 - do no longer rely on the presence of EV::DNS if EV is used
558 (because it is gone), but instead take avdantage of EV::ADNS
559 if available.
560 - add ($) prototypes to all functions in Coro::Storable.
561 - use a conventional (safer) idle callback in Coro::EV.
562 - do accept quickly in Coro::Debug to avoid endless loops.
563
5644.22 Fri Nov 30 16:04:04 CET 2007
565 - really use optimised versions for Event and EV in Coro::Util
566 and Coro::Handle.
567
5684.21 Sun Nov 25 10:48:59 CET 2007
569 - fix a spurious memory read.
570 - Coro::EV no longer keeps the eventloop "alive".
571
5724.2 Fri Nov 9 20:47:05 CET 2007
573 - enable/disable tracing from a new coroutine, not a pooled one.
574 - fix a memleak in Coro::Event.
575 - removed killall call from fork_eval.
576 - made sure store_fd is already loaded so that fork_eval
577 does not have to parse autoload in each subprocess.
578 - only use assembly method if -O switch is in $Config{optimize}.
579 - add (optional) Coro::EV module, so far the best event loop module
580 directly supported by Coro.
581 - if the event model is EV, use EV::DNS to resolve
582 stuff in Coro::Util.
583 - don't get confused by multiple event notifications in Coro::Handle.
584 - initial support for EV (libevent interface).
585 - require Event and EV using configure_requires, to force their existance.
586
5874.13 Wed Oct 24 07:26:45 CEST 2007
588 - add Coro::Storable::blocking_thaw.
589 - use a vastly more complicated technique to localise
590 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
591 - use a coroutine for the idle callback Coro::Event,
592 instead of running Event in the current coroutine context.
593 This also catches recursive invocations.
594 - actually report fork errors in gethostbyname and inet_aton.
595
5964.11 Thu Oct 11 02:40:24 CEST 2007
597 - port to threaded perls.
598
5994.1 Thu Oct 11 02:38:16 CEST 2007
600 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
601 be local to each coro (see Coro::State).
602 - incompatible change: for very deep reasons, cede and cede_notself
603 cannot return anything, so nothing will be returned.
604 - possibly bring back 5.10 compatibility (untested).
605 - work around stupid (and wrong) warning on 5.10 :(.
606 - overlay the saved state over the context stack. This saves
607 a few hundred bytes per coroutine on average and also
608 speeds up context switching a bit.
609 - further tune default stack sizes.
610 - (more) correctly calculate stack usage in coro_rss.
611 - Coro::Storable::blocking_* did not properly lock
612 resulting in races between coroutines.
613 - added Coro::Storable::guard.
614 - stopping to trace a coroutine could destroy the cctx of
615 an unrelated coroutine.
616 - explain the relationship between Perl and C coroutines in
617 more detail in Coro::State.
618 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
619 causing a fork per resolve. This also affected Coro::Socket.
620 - switch to a separate stack in $coro->call/eval to avoid
621 invalidating pointers.
622
6234.03 Sat Oct 6 21:24:00 CEST 2007
624 - added Coro::throw method.
625 - minor code cleanups.
626
6274.02 Sat Oct 6 02:36:47 CEST 2007
628 - fix a very minor per-coroutine memleak (a single codereference).
629 - fixed a bug where the currently in-use c context would be freed
630 prematurely (can happen only when programs change the stacksize
631 or use tracing).
632 - tracing can no longer keep a coro alive after it terminated.
633 - do static branch prediction in the common path for gcc. gives
634 about 2-5% speed improvement here.
635
6364.01 Fri Oct 5 22:10:49 CEST 2007
637 - instead of recreating *a* standard output handle we simply
638 use STDOUT, which is faster and hopefully more robust.
639
6404.0 Fri Oct 5 12:56:00 CEST 2007
641 - incompatibly changed Coro::Storable::freeze.
642 - major new feature: added Coro::Debug, for interactive coroutine
643 debugging, tracing and much more.
644 - major bug fix: unbelievable, but true: $_, $/ and many other
645 "saved" variables actually weren't being saved. This has been fixed,
646 of course, while increasing performance while losing all the save
647 flags.
648 - save flags are gone, and all the api functions dealing with them.
649 - added Coro::Semaphore::adjust.
650 - added Coro::Util::fork_eval.
651 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
652 - added Coro::killall.
653 - reduce initial stack sizes to allow for "micro-coroutines".
654 - better async_pool resource management, moved parts of async_pool
655 handling to XS (major speed improvement).
656 - actually croak before modifying important data structures.
657 - refuse to transfer while compiling.
658 - possibly support eval EXPR better now.
659 - enable assembly per default on linux+bsd x86+amd64.
660 - all internal members were renamed _something for easier subclassing.
661 - many minor tweaks.
662
6633.63 Wed May 16 14:10:06 CEST 2007
664 - implement handcoded assembly for x86/amd64 SVR ABI.
665
6663.62 Fri Apr 27 21:36:06 CEST 2007
667 - upgrade libcoro (which might set unwind info correctly).
668 - change default on linux to setjmp/longjmp.
669
6703.61 Thu Apr 19 12:36:18 CEST 2007
671 - Coro::Storable caused an endless loop when thawing invalid
672 pst's sometimes.
673 - use a Semaphore in Coro::Storable, as Storable doesn't
674 seem to be reentrant (although it is documented to
675 be threadsafe...).
676 - fix Coro::Signal to bring back the original unreliable
677 but stateful semantics.
678 - fixed a lot of typos in Coro.pm (patch submitted by David
679 Steinbrunner, which applied flawlessly).
680
6813.6 Sat Apr 14 17:13:31 CEST 2007
682 - added some bugfixes to get eg/myhttpd working again.
683 - added Coro::Storable for often-cede'ing freeze/thaw.
684 - try to do a clean exit when a coroutine calls exit
685 (EXPERIMENTAL).
686 - got rid of indirect call through _coro_init.
687 - updated the partly antique examples in eg/ to
688 work again and be a bit less magic, too.
689 - fixed Coro::Signal semantics to work as documented again.
690
6913.55 Sun Mar 25 01:20:47 CET 2007
692 - add SAVE_DEFFH to save the default filehandle and enable
693 it by default.
694 - finally move socket-operations from Coro::Socket to Coro::Handle
695 to be able to unblock foreign sockets.
696 - add Coro::State::save_also and guarded_save.
697 - add count accessor to Coro::Semaphore.
698 - add Coro::State::cctx_stacksize.
699 - just for the fun of it, do not rely on implicit context,
700 which can dramatically improve performance, but people
701 using windows-process-emulation perls do not care much about
702 performance.
703
7043.51 Sun Mar 4 14:18:04 CET 2007
705 - fixed a problem when you weakened references to Coro::State's
706 (patch by Yuval Kogman).
707
7083.501 Wed Feb 28 12:44:07 CET 2007
709 - rename some global symbols as macosx from hell redefines
710 them without asking.
711
7123.5 Tue Feb 13 20:22:53 CET 2007
713 - do AnyEvent model detection earlier, avoiding problems
714 caused by first using AnyEvent and later Coro::Event.
715 - implement and document Coro::Event event objects.
716 - fix a potential problem in Coro::Event causing crashes.
717 - initialise PL_comppad when creating a new coroutine,
718 avoids crashes on early coro destruction.
719
7203.41 Mon Jan 22 19:19:49 CET 2007
721 - readline on Coro::Handle did not support undefined $/,
722 nor did it deliver partial lines on EOF or error.
723 - implement malloc fallback for stack allocation because
724 stupid broken idiotic OSX has a stupid broken
725 idiotic fits-the-whole-os mmap "implementation" and
726 my dick feels longer if Coro is portable even to
727 obsolete platforms.
728
7293.4 Fri Jan 19 21:52:54 CET 2007
730 - remove t/09_timer.t, as it isn't really testing much
731 but was rather flaky in practise.
732 - async_pool coro would keep arguments and callback alive until
733 it was reused.
734 - cancellation of a coroutine could cause spurious idle calls
735 in cede_notself.
736
7373.3 Sat Jan 6 03:45:00 CET 2007
738 - implement $coro->on_destroy.
739 - Coro::Event blocking semantics have been changed,
740 documented and - hopefully - improved.
741 - fix nice adding, not subtracting, from priority.
742 - fix ->prio and api_is_ready (patch by Mark Hinds).
743 - fixed an assert ("... == prev__cctx->idle_te")
744 that could errronously trigger.
745 - fix various large and small memleaks.
746 - use a (hopefully) more stable cancel implementation
747 that immediately frees the coroutine data.
748 - cede/cede_notself return a status now.
749 - added Coro::guard function.
750 - added a global coroutine pool for jobs (on my machine,
751 I can create and execute 48k simple coros/s with async,
752 and 128k coros with async_pool).
753 - Coro::AIO now uses the coroutine priority as io priority.
754
7553.2 Fri Dec 22 05:07:09 CET 2006
756 - improve portability to slightly older perls.
757 - use cleaner coroutine destruction.
758 - simplify configuration for users.
759 - optionally (unrecommended) prefer perl functions over
760 their coro replacements.
761
7623.11 Tue Dec 5 13:11:24 CET 2006
763 - fixed some bogus assert's, but as perl.h disables assert even
764 without NDEBUG (thank you very much), not too many people should
765 notice (that did include myself). Andreas König noticed, though :)
766 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
767 it. Also noticed by Andreas König :)
768 - save/restore tainted status.
769 - verified to pass the testsuite on my 5.9.5.
770
7713.1 Mon Dec 4 23:03:40 CET 2006
772 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
773 - incompatible change: transfer flags are now per-state.
774 - give a better error message on deadlock.
775 - document Coro::nready.
776 - enhanced testsuite.
777
7783.01 Sun Dec 3 23:47:42 CET 2006
779 - forgot to include Coro::Timer.
780
7813.0 Sun Dec 3 22:57:25 CET 2006
782 - the "FINALLY COMPLETELY STABLE" release (coming soon:
783 the "FAMOUS LAST WORDS" release).
784 - implement a new stack sharing algorithm, which uses a stack
785 pool (size currently hardcoded).
786 - make stack sharing mandatory (it no longer uses a heuristic).
787 - eval/die no longer cause weird problems under heavy use.
788 - Coro::Event could cause livelocks if it was used but
789 no Coro::Event watchers were used.
790 - Coro::Event now uses asynccheck as prepare does not
791 check for changed watchers.
792 - Coro::Event allows multiple waiting coros and will wake up one
793 per event.
794 - Coro::Event should be cleaner and more efficient now.
795 - new utility function Coro::unblock_sub.
796 - document the sad fact that Event is no longer reentrant.
797 - putting a coroutine into the ready queue twice could under
798 some circumstances lead to stack corruption.
799 - minor incompatibility: subclassing Coro::State is supported
800 directly now without going through a _coro_state member.
801 - state/coro switching is much faster now.
802 - very minor optimisations and code/documentation cleanup.
803 - avoid problems due to compiler inlining.
804 - removed timers from Coro::Timer -> use AnyEvent instead.
805 - replaced Coro::idle coroutine by (cleaner) idle handler.
806 - updated to newest libcoro.
807 - implement enhanced support for valgrind.
808 - implement is_ready and return value for ready.
809 - removed Coro::Cont, it was a misnomer (it's generators),
810 and it was somewhat annoying to get it right. Will come back
811 if somebody asks for it :)
812 - many ->wait methods and Coro::Event could return
813 spuriously without the event having happened.
814
8152.5 Tue Nov 7 12:22:33 CET 2006
816 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
817 use AnyEvent, moved them to Coro/.
818 - added Coro::LWP which contains all the uglyness required to
819 make LWP non-blocking.
820 - should work with perl 5.9.x now (Andreas König made me do it).
821 - fixed another bug in Coro::Select when the timeout was undef.
822 - reuse PL_start_env for all coros, saves some memory per coroutine.
823 - manage PL_top_env differently, hopefully to avoid panic: top_env.
824 - timeout argument was not properly used in Coro::Socket.
825 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
826 - emulate undocumented(!) functionality of IO::Socket required
827 by LWP(!!).
828 - updated eg/lwp to work with newer lwp's.
829 - remove "FATAL: uncaught exception" prefix. Coroutines that die
830 kill the whole process, just as exceptions in the main "coroutine"
831 did already.
832
8332.1 Wed Nov 1 23:01:13 CET 2006
834 - fix a long-standing bug in Coro::Select where select with
835 zero timeout would instead change the current default filehandle.
836 - use a simpler and hopefully more robust way to clone padlists
837 (uses less memory and a perl function instead of our own).
838 - coro can now create a stack guard area on many architectures.
839 - Coro::AIO properly reexports additional functions from IO::AIO.
840 - updated libcoro with a workaround for OS X,
841 pach and testing by Michael Schwern.
842
8432.0 Tue Oct 24 05:47:17 CEST 2006
844 - support additional aio requests in Coro::AIO.
845
8461.9 (never properly released due to a glitch)
847
8481.8 Thu Feb 2 00:59:06 CET 2006
849 - applied suggested patch by SAMV to avoid problems during stupid
850 mark & sweep gc run.
851 - applied patch by Scott Walters for 5.9.3 compatibility.
852
8531.7 Tue Dec 27 01:41:58 CET 2005
854 - added Coro::AIO, a thin wrapper around IO::AIO.
855 - improved Makefile.PL explanations.
856
8571.6 Mon Dec 12 21:30:05 CET 2005
858 - additionally save PM_curpm might fix as-of-yet
859 unseen problems with regex matches being attributed to the
860 wrong package.
861 - add t/10_bugs.t, which currently checks against imho broken
862 perls that use 0.26MB of stack space per Perl_magic_get
863 invocation (newer linuxes) as opposed to the 0.0002MB perl
864 normally uses.
865 - make stacksize configurable for the ultimate debian experience.
866
8671.51 Mon Dec 12 18:48:36 CET 2005
868 - remove debugging warn() accidentally left in Coro::Select.
869
8701.5 Tue Nov 29 13:32:44 CET 2005
871 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
872 - fix Coro::Select 'select'.
873 - strict'ify some modules.
874 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
875 - use XSLoader in selected modules.
876 - remove some 5.6 compatibility cruft.
877
8781.4 Tue Sep 6 00:11:05 CEST 2005
879 - libcoro did not take into account the trampoline on amd64,
880 when 'l'inux method was used.
881
8821.31 Tue Aug 30 23:31:33 CEST 2005
883 - some portability fixes/workarounds.
884
31.3 Sat Aug 20 03:08:56 CEST 2005 8851.3 Sat Aug 20 03:08:56 CEST 2005
886 - no code changes. module seems to work fine.
4 - improve Coro::State docs, remove reference to nonexisting 887 - improve Coro::State docs, remove reference to nonexisting
5 Coro::State::flush method. 888 Coro::State::flush method.
6 - no longer autodetect windows, present it as an option instead. 889 - no longer autodetect windows, present it as an option instead.
7 890
81.2 Mon May 16 02:00:55 CEST 2005 8911.2 Mon May 16 02:00:55 CEST 2005
151.11 Thu Mar 3 18:00:52 CET 2005 8981.11 Thu Mar 3 18:00:52 CET 2005
16 - change of contact address. 899 - change of contact address.
17 900
181.1 Tue Feb 22 20:51:16 CET 2005 9011.1 Tue Feb 22 20:51:16 CET 2005
19 - support [l]inux method on amd64. 902 - support [l]inux method on amd64.
20 - make some context switches while compiling/eval'ing work. 903 - allow some context switches while compiling/eval'ing.
21 904
221.0 Tue Aug 10 03:47:27 CEST 2004 9051.0 Tue Aug 10 03:47:27 CEST 2004
23 - Event 0.89 fixes the bug again. 906 - Event 0.89 fixes the bug again.
24 - fix the remaining(??) memleak. I didn't free the cache-AV for 907 - fix the remaining(??) memleak. I didn't free the cache-AV for
25 padlists, so one AV per created anon-sub leaked. 908 padlists, so one AV per created anon-sub leaked.

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