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Comparing Coro/Changes (file contents):
Revision 1.123 by root, Mon Dec 26 18:48:11 2005 UTC vs.
Revision 1.551 by root, Sat Feb 19 06:51:22 2011 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
31.7 3TODO: should explore PerlIO::coroaio (perl leaks like hell).
4TODO: channel->maxsize(newsize)?
5TODO: http://www.microsoft.com/msj/archive/s2ce.aspx
6
75.37 Sat Feb 19 07:49:44 CET 2011
8 - add a big "Coro thread life cycle" section to "man Coro".
9 - try a tentative workaround against the breakage that 5.13 has
10 introduced without depreciation period. sigh.
11 - no longer use Time::HiRes if gettimeofday is available, which
12 saves quite a lot of memory.
13
145.36 Sun Feb 13 05:33:41 CET 2011
15 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
16 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
17 method call.
18 - undocument Coro::Timer::sleep and obsolete whole module.
19 - optimise Coro::Timer::timeout memory and cpu usage.
20 - slightly updated Coro::Intro for recent changes.
21 - do not initialise PL_dirty anymore.
22
235.25 Thu Nov 11 01:08:39 CET 2010
24 - try a different approach on netbsd - netbsd 5 finally has marginally
25 working pthreads, but still broken ucontext/sigaltstack.
26 - openbsd 4.8 finally got their act together, Coro works out of the box
27 with asm, setjmp and pthreads (no change, just informational).
28
295.24 Sat Oct 23 11:27:12 CEST 2010
30 - port to the EV 4.0 API.
31 - work around bugs in mingw32, making strawberry perl work
32 out of the box.
33 - correctly modify Coro::AIO function prototypes
34 so that they reflect the "no optional parameters" rule.
35 - "ported" libcoro to C++.
36
375.23 Mon May 17 18:50:42 CEST 2010
38 - be more resistant to ordering changes when initialising
39 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
40 Waldorf).
41 - document that perl 5.12 deliberately removed support for cloning.
42
435.22 Wed Apr 14 03:55:35 CEST 2010
44 - correctly return udnef on errors in Coro::Handle::read/write
45 (testcase by Marc Mims).
46 - convert Coro::Util into a "perl compatibility wrapper" - the functions
47 are less useful now, but are drop-in replacements for existing
48 functions, listing better alternatives in the documentation. This also
49 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
50 with Coro::Util::inet_aton.
51 - do not override $Coro::idle unconditionally in Coro.pm, as other
52 modules could have provided their own idle coro already
53 (for exmaple, Coro::AnyEvent).
54 - fix Coro::Util::gethost* functions.
55 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
56
575.21 Wed Dec 16 07:19:51 CET 2009
58 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
59 together.
60 - add some examples on how to combine other event loops with Coro in
61 Coro::AnyEvent, and how to run it (and not to block). Seems to be
62 the most common source of confusion.
63 - try to catch people naively blocking in an event callback.
64 - work around the perl filehandle bug issue in conjunction with
65 older common::sense (as indirectly pointed out by ZSystem).
66 - clarify the "not from signal handlers" section.
67
685.2 Sun Oct 4 14:54:24 CEST 2009
69 - Coro::Storable destroyed the prototypes of the functions it wrapped.
70 - export rouse_cb and rouse_wait by default now.
71 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
72 - new method $state->swap_sv.
73 - added section on "windows process emulation" to the manpage,
74 after a not-so-fruitful (nor-friendly) "discussion" with chip
75 salzenberg (discussion implies arguments, but his only arguments
76 were ad-hominems, one wonders why he started it in the first
77 place). I hope this explains it well enough for him to understand,
78 and maybe well enough for others to understand.
79 - use common::sense everywhere now.
80 - idle callbacks are no longer supported, use idle coros instead.
81 - print a thread listing when a deadlock is detected.
82
835.17 Sat Aug 22 23:09:31 CEST 2009
84 - work around a bug in the perl debugger causing crashes
85 when running under the debugger by marking _pool_handler as nodebug.
86 - speed up Coro::async considerably.
87 - try some hacks to get netbsd to work "more often" - their broken
88 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
89 - convert Coro to AE 5.0 API.
90
915.162 Tue Jul 28 04:04:03 CEST 2009
92 - perl 5.8.2 is now minimum requirement.
93 - skip t/19_handle.t on broken windows perls.
94
955.161 Wed Jul 22 04:47:38 CEST 2009
96 - Coro::AnyEvent::poll could have a different prototype when EV was
97 used as backend (analyzed by Tatsuhiko Miyagawa).
98 - Coro::AnyEvent errornously initialised the event loop when loaded,
99 not on demand.
100 - try to workaround rare */t/01_unblock.t failures.
101
1025.16 Tue Jul 21 01:44:37 CEST 2009
103 - Coro::AnyEvent failed to hook into the event loop
104 when no threads had been readied between detecting
105 the event loop and actually running it.
106 - considerably speed up Coro::Select by taking avdantage
107 of AnyEvent > 4.8 and some other optimisations.
108 - implement paragraph readline mode in Coro::Handle
109 (based on patches by Zsbán Ambrus).
110 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
111 and analyzed by Yasuhiro MATSUMOTO).
112 - clarified libcoro license and copyright.
113 - someone stole my EXTRA_META!!!
114 - implement Coro::Select::patch_pp_sselect and it's brother,
115 for hardcode select overriding.
116
1175.151 Mon Jul 6 05:41:57 CEST 2009
118 - backport to windows process emulation code again (patch by
119 Yasuhiro MATSUMOTO).
120 - slightly update Coro::MakeMaker.
121
1225.15 Tue Jun 30 10:28:06 CEST 2009
123 - deprecate Coro::Socket, document how to get ipv6 support via
124 AnyEvent::Socket instead.
125 - implement signal->wait ($cb) interface, similar to semaphores.
126 - work around SvOK not supporting getmagic, so we have to getmagic
127 to test for undef :/ (reported by Matthias Waldorf).
128 - load Coro::AnyEvent in all modules using AnyEvent.
129 - work around perl corrupting our internal data structures,
130 reported by Tokuhiro Matsuno.
131 - enable per-coroutine real and cpu time gathering
132 (Coro::State::enable_times).
133
1345.14 Wed Jun 24 01:37:48 CEST 2009
135 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
136 as this seems to have been a difficult concept (poll, sleep, idle,
137 idle_upto).
138 - add Coro::AnyEvent::readable/writable functions.
139 - clarify Coro::EV/Event/AnyEvent manpages.
140 - free per-thread global scalars in the thread calling ->cancel, to
141 avoid crashes when $_, $@ etc., are magical but some of those
142 had already been freed.
143 - "unexperimentalise" the callback interface for Coro::Semaphore.
144 - speed up ready queue management/context switching by using a linked
145 list instead of an array (~5-10%).
146 - implement "watch" command in Coro::Debug shells.
147 - for fun, implement time-slicing as an example in the manpage.
148 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
149 Coro::Event, use the normal AnyEvent handling instead of dieing
150 (the same is true for Coro::Handle).
151 - properly document Coro::EV::timed_io_once.
152 - avoid unneccessary ->cancel calls in Coro::Handle.
153 - maybe make it work on mingw32 with win32 backend
154 (based on patch by Yasuhiro Matsumoto).
155
1565.132 Fri May 29 09:00:39 CEST 2009
157 - do not keep a reference to the argument itself in
158 Coro::Semaphore::guard, as it could change later.
159 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
160 should support a prepare callback.
161
1625.131 Mon Mar 16 23:20:37 CET 2009
163 - implement and document Coro->suspend, Coro->resume.
164 - fix Coro::Select implementation to not (often) close
165 the passed file descriptors (testcase provided by pippijn).
166
1675.13 Mon Dec 15 21:51:42 CET 2008
168 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
169 - don't set diehook to C<undef> but instead to NULL, to avoid
170 spurious warnings.
171 - fix a lot of bugs in Coro::SemaphoreSet.
172 - Coro::SemaphoreSet will less often create a semaphore needlessly.
173 - add Coro::SemaphoreSet::count and wait methods.
174 - take advantage of the new Guard module.
175 - deprecate Coro::guard.
176 - try to fix the dreaded 01_unblock tests once more. I hate it when
177 testsuites need more fixing than the code they are supposed to test.
178 - croak in more cases when a required callback isn't resolvable.
179 - fix some minor issues in Coro::State->call/eval.
180 - use current coroutine context instead of a temporary one
181 when temporarily switching to another coroutine.
182 - do not call C-level on_destroy handlers during global destruction,
183 to avoid needless segfaults.
184
1855.12 Sun Dec 7 13:30:38 CET 2008
186 - add default config for MirOS, which seems to be a bug-to-bug
187 compatible fork of openbsd ("world domination by releasing
188 openbsd cvs before the openbsd folks do it" or so :).
189 - free_padlist did destroy the names pad, not good, but didn't
190 seem to bother perl - this could fix issues such as eval ""
191 inside a function called from multiple coroutines.
192 - use a different method to detect destruction time.
193 - be more careful when freeing padlists just before global
194 destruction.
195 - fixed and expanded the call/cc example.
196 - renamed _terminate to _coro_run.
197 - new method Coro::Channel->shutdown.
198 - try pthreads on openbsd <4.4 (broken sigaltstack, will
199 pthreads fare better?).
200 - be less picky about destroying "a" running coroutine.
201
2025.11 Tue Nov 25 21:49:05 CET 2008
203 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
204 working code with failed assertions, introducing more bugs than
205 it fixes, requiring elaborate workarounds :(
206
2075.1 Mon Nov 24 08:54:59 CET 2008
208 - wrote a small introductory tutorial - Coro::Intro.
209 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
210 - Coro::Select did errornously dup the file descriptors
211 and didn't work with all AnyEvent backends.
212 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
213 LWP data transfers.
214 - disassociate c contexts from coro objects - this is agruably more
215 correct, but mostly allows sharing of cctxs between coro and state
216 objects, for added memory savings and speed increases.
217 - bumped $Coro::POOL_RSS up to 32kb by default.
218 - no longer set the optype to OP_CUSTOM, as B::* understandably
219 doesn't like this very much (and we *are* a type of entersub).
220 - implement state cloning, just to prove that call/cc can be done.
221 - automatically load Coro::AnyEvent in Coro::Handle.
222 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
223 do not have this method (and don't need it either).
224 - speed up generic anyevent methods in Coro::Handle by using rouse
225 callbacks.
226 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
227 others. It also makes the debugger happier, as you can trace
228 through the idle threads now.
229 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
230 - eg/event was pretty broken.
231 - better 5.8.6 compatibility.
232
2335.0 Thu Nov 20 10:35:05 CET 2008
234 - NEW ARCHITECTURE: use the latest 4.x version if you experience
235 stability issues.
236 - bump API version to 7 - all dependents must be recompiled.
237 - removed timed_* functions - they were not being used anyways
238 and should be replaced by a more generic mechanism -
239 and were annoying to support anyways :)
240 - removed SemaphoreSet's waiter method - use sem method instead.
241 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
242 - async_pool did free a scalar value twice
243 ("Attempt to unreference...").
244 - fix a longstanding bug where calling terminate on a coro that
245 was waiting for a semaphore that was just becoming available
246 would cause a deadlock (semaphore would get into a state where
247 it was available but waiters were still blocked).
248 - calling throw on a coroutine that is waiting for a semaphore will
249 no longer make it acquire the semaphore (and thus leak a count).
250 - perl's process emulation is now not even theoretically supported
251 anymore.
252 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
253 conversion of callback-style to blocking-style.
254 - new methods $coro->schedule_to and ->cede_to, to specifically
255 schedule or cede to a specific coroutine.
256 - new function Coro::Semaphore::wait.
257 - use named constants in Coro::Channel (Richard Hundt).
258 - directly patch the entersub opcode calling SLF functions (cede,
259 transfer and so on). this does speed up context switching, but
260 more importanly, it frees us from the hardcoded behaviour of
261 entersub, so we might actually be able to return something from
262 those functions and atcually create new ones.
263 - take advantage of __builtin_frame_address on gcc.
264 - expose THX in coroapi (not sure whether this was a wise decision,
265 as "threaded" perls are running at half speed anyways).
266 - implement execute_slf (schedule-like-function) interface that makes
267 it possible to implement schedule-like-functions in XS.
268 - use new SLF interface to massively speed up Coro::EV by roughly a
269 factor of two.
270 - used new SLF interface to massively speed up Coro::Semaphore by a
271 factor of three.
272 - used new SLF interface to speed up Coro::AIO by roughly a factor of
273 four and reduce its memory usage considerably.
274 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
275 for a nice speedup and vastly more correct behaviour. Also implement
276 a new method "sem" to get at the underlying semaphore object.
277 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
278 (in comparison) 20-40% speedup.
279 - used new SLF interface to reimplement Coro::Signal gaining
280 some unknown (because I was too lazy), but certain, speedup, and also
281 making signals reliable for the first time.
282 - used new SLF interface and other optimisations to speed up async_pool
283 by a factor of two. It also doesn't rely on perl's exception mechanism
284 to exit anymore. The overhead for terminating an async_pool, coro over
285 a normal async is now very small.
286 - sped up coroutine creation/destruction by 40%.
287 - forgot to include Coro/libcoro/README in the dist for all these years.
288 - work around a freebsd pthreads bug (manual testcancel is required as
289 pthread_cond_wait isn't a cancellation point on freebsd).
290 - use new rouse functions to speed up and simplify Coro::BDB.
291 - make "prefer perl native functions" work with threaded perls.
292 - condense Coro::Debug ps output, hint at v and w flags.
293 - (libcoro) lots of minor cleanups and portability improvements.
294
2954.914 Wed Nov 19 12:54:18 CET 2008
296 - fix a disastrous bug in the readline optimisation
297 introduced in 4.801.
298
2994.913 Sat Nov 15 07:58:28 CET 2008
300 - async_pool did free a scalar value twice
301 ("Attempt to unreference...").
302
3034.912 Thu Nov 13 18:31:23 CET 2008
304 - minor cleanups.
305 - use much larger stacks on linux and perl < 5.8.8.
306 - Coro::Debug::new_unix_server did not unlink the socket
307 when destroyed.
308
3094.911 Tue Nov 11 04:26:17 CET 2008
310 - "port" to threaded perls.
311
3124.91 Mon Nov 10 05:36:38 CET 2008
313 - the ->throw exception object no longer leaks.
314 - creating a new cctx leaked a scopestack entry (memleak).
315 - new coroutines didn't get created with a zero flags field
316 (unknown impact).
317 - calling ->throw on a not-yet-started coroutine should now work
318 instead of being ignored.
319 - ->throw is now supported on Coro::State objects.
320 - clean up cctx creation code a bit.
321 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
322
3234.9 Sat Nov 8 17:45:27 CET 2008
324 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
325 - (libcoro) no longer leak threads in the experimental pthread backend,
326 also speed it up considerably.
327 - (libcoro) do not rely on makecontext passing void *'s unscathed.
328 - fix compiletime dependencies on libcoro in the Makefile.
329 - cctx_count wasn't always updated properly.
330 - Coro::State::cctx_stacksize wasn't applied correctly.
331 - new function Coro::State::cctx_max_idle.
332 - the default max number of idle C contexts is now 4.
333 - (libcoro) try harder to get _setjmp/_longjmp.
334 - (libcoro) cleanup and extend the libcoro API to officially
335 allow the creation of empty source contexts.
336 - very experimental workaround for the totally broken netbsd platform.
337 - tried to hack around openbsd bugs.
338
3394.804 Wed Nov 5 16:36:00 CET 2008
340 - Coro::Debug::new_unix_server would not create a non-blocking listening
341 socket, sometimes causing freezes.
342 - (libcoro) fix misaligned stack points for setjmp and assembly
343 methods, which can cause crashes on x86/x86_64 with a sufficiently
344 aggressive compiler.
345 - new function: Coro::Debug::new_tcp_server.
346 - move ->throw into the Coro class because it only works on coro objects.
347
3484.803 Mon Nov 3 17:16:12 CET 2008
349 - (libcoro) use a global asm statement to become independent of gcc
350 otpimisations for CORO_ASM (thanks to pippijn for the idea).
351 - try to workaround yet another broken bsd, this time dragonfly.
352
3534.802 Thu Oct 30 10:56:12 CET 2008
354 - support -fno-omit-frame-pointer on x86 with the assembly method.
355 - tune 01_unblock.t tests a bit.
356
3574.801 Wed Oct 22 18:33:37 CEST 2008
358 - improve readline speed for very long "lines".
359 - backport to 5.8.8.
360
3614.8 Thu Oct 2 13:34:40 CEST 2008
362 - new function Coro::AIO::aio_wait.
363 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
364 - greatly speed up and reduce memory usage of Coro::AIO requests.
365 - implement some other µ-optimisations.
366
3674.749 Mon Sep 29 14:40:12 CEST 2008
368 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
369
3704.748 Sat Sep 27 14:03:19 CEST 2008
371 - implement, but do not document, PerlIO::cede(granularity).
372 - Coro::Storable forgot to wrap Storable::pstore.
373 - work around the multitude of leaks and memory corruption
374 bugs in PerlIO::via by using our own C-level perliol. As a side
375 effect, Coro::Storable is now much, much, much faster.
376
3774.747 Tue Sep 23 01:59:41 CEST 2008
378 - fix a per-cv memleak (one empty array was leaked per
379 code reference).
380 - avoid a crash in coro->call|rss when the coroutine was already
381 destroyed (most noticably when using Coro::Debug::ps :)
382 - also protect *Storable::FILE.
383 - push up default storable granularity to 20ms.
384
3854.746 Sun Sep 21 03:22:20 CEST 2008
386 - be more insistent on locking Storable against reentrancy
387 in Coro::Storable.
388 - move swap_def?v and throw to Coro::State, as documented.
389
3904.745 Thu Jul 24 00:14:38 CEST 2008
391 - remove debugging code related to MgPV_nolen_const, also try to
392 make it compile with perl 5.8.6 (yes, apple apparently loves
393 outdated software). Reported by John S.
394
3954.744 Tue Jul 8 22:06:35 CEST 2008
396 - correctly provide default DIE/WARN handlers as documented.
397 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
398 implementations inside perl work fine for us.
399
4004.743 Mon Jun 16 00:21:57 CEST 2008
401 - when using Coro::EV without running EV::loop it could
402 result in busy-waiting for events, this has been fixed.
403 - reduce codesize and improve performance by using EV_DEFAULT_UC.
404
4054.742 Sat May 31 14:10:21 CEST 2008
406 - implement a workaround for (some) perl <5.8.8 versions.
407 - require EV 3.3+.
408
4094.741 Fri May 30 23:33:09 CEST 2008
410 - tell netbsd how utterly broken their imitation of an OS is
411 and refuse to build by default if pthreads are in use.
412 - switch to "s" method on all bsd's by default, as their ucontext
413 stuff seems just too broken.
414 - fix a bug in Coro::Select.
415
4164.74 Thu May 29 20:05:31 CEST 2008
417 - do not test Coro::LWP for lack of dependencies.
418 - do not test Coro::Select for lack of working perls.
419
4204.73 Thu May 29 2008
421 - fix a bug in Coro::EV which would cause it to block despite
422 there being runnable coroutines.
423 - sprinkle "no warnings" freely over everything, also suppress
424 warnings for some other modules.
425 - fix typo in WSAEWOULDBLOCK.
426
4274.72 Sun May 25 05:14:36 CEST 2008
428 - tweak META.yaml a bit, unfortunately, there is no documented way
429 to have optional dependencies with CPAN. doh :(
430 - avoid running some tests on windows because they would fail due to
431 perl bug (broken fork, broken pipes...).
432 - work around perl on windows bugs where perl returns undocumented
433 error codes for sysread, syswrite etc. by taking advantage
434 of AnyEvent's workaround for that problem.
435 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
436 a common perl implementation bug on windows.
437 - use unix domain sockets in testsuite to work around
438 common perl implementation bugs on widows (they are emulated by
439 tcp sockets on windows. ugh.)
440
4414.71 Sat May 24 20:01:27 CEST 2008
442 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
443 - take advantage of async name resolution of AnyEvent::Util.
444 - work around brutal inet_aton override in Coro::LWP.
445 - take advantage of the readyhook in Coro::EV, for smoother
446 scheduling.
447
4484.7 Sun May 11 00:32:19 CEST 2008
449 - completely reworked the Coro manpage.
450 - added Coro::AnyEvent, generic event loop integration.
451 - implement cancel, ready and kill commands in Coro::Debug.
452 - document find_coro in Coro::Debug.
453 - incompatible change: rename has_stack to has_cctx.
454 - Coro::AIO and Coro::BDB no longer force event model detection,
455 use AnyEvent::AIO and AnyEvent::BDB.
456
4574.6 Sat Apr 26 10:05:14 CEST 2008
458 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
459 by the Coro module. It was a mistake to have it in the first place.
460 - (experimental) support for activestate perl 5.10 (method "w").
461 - (experimental) support for strawberry perl (method "a").
462 - coro_sigelem_set did not return a value although it had to,
463 actual impact unknown.
464
4654.51 Mon Apr 14 13:28:27 CEST 2008
466 - make it compile again on 5.8.
467
4684.50 Thu Apr 10 09:43:17 CEST 2008
469 - I did it twice! (see 4.49).
470
4714.49 Sun Apr 6 21:23:31 CEST 2008
472 - grr, instead of compiling the recent changes on 5.10 only they
473 were compiled on 5.8 only.
474
4754.48 Sun Apr 6 20:36:46 CEST 2008
476 - allow coroutine switches during eval's under 5.10.x, as it seems
477 the parser is a per-interpreter option now, so this is safe
478 (this might fix the odd crashing bug).
479 - drop support for 5.9.x versions: they are dead, jim.
480
4814.47 Sun Apr 6 00:37:52 CEST 2008
482 - force cctx allocation on API calls: we know we need to force one
483 and gcc actually manages to confuse our heuristic nowadays,
484 leading to crashes and worse.
485 - document force_cctx.
486
4874.46 Fri Apr 4 22:05:43 CEST 2008
488 - upgrade libcoro, resulting in pthread-backend (which was only created
489 to fulfill the rules of the programming languages shootout).
490
4914.45 Thu Mar 13 11:55:36 CET 2008
492 - fix a file leaking bug in eg/mhyttpd that would allow
493 downloading of any file (reported by oesi).
494 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
495 (also add testcase).
496 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
497 apparently having loads of fun with that).
498 - implement $state->swap_defsv, ->swap_defav and document ->throw.
499
5004.4 Wed Feb 13 16:44:29 CET 2008
501 - only assume .cfi pseudo isns exist on GNU/Linux.
502 - add get_timed method to Coro::Channels.
503 - fixed Coro::Debug manpage.
504 - perl 5.11 compatbility improvement based on patch by
505 Andreas König.
506
5074.37 Sun Jan 20 11:25:23 CET 2008
508 - soften the check for an active parser for perl 5.10 (avoiding
509 "Coro::State::transfer called while parsing" in many cases).
510
5114.36 Sun Jan 13 10:53:56 CET 2008
512 - reset diehook when terminating from an async_pool as to not
513 trigger any __DIE__ handlers.
514
5154.35 Sun Jan 13 04:14:13 CET 2008
516 - "bt" debug command now displays any exceptions
517 from longmess and also skips the innermost
518 stackframes, giving more useufl output.
519 - allow backtraces in coroutines blocked in Coro::EV,
520 at a <1% speed hit.
521 - handle localising of $SIG{__WARN__} and __DIE__
522 properly (with a proper amount of dirty hacking).
523
5244.34 Sat Dec 22 17:49:53 CET 2007
525 - upgrade to EV version 2.0 API.
526
5274.33 Mon Dec 17 08:36:12 CET 2007
528 - make Coro::AIO etc. loadable in the absence of EV.
529
5304.32 Mon Dec 17 07:46:02 CET 2007
531 - majorly improved Coro::Handle's performance with Coro::EV.
532 - implemented the until now mythical Coro::BDB module.
533 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
534
5354.31 Wed Dec 5 12:32:39 CET 2007
536 - remove warn statement form Coro::Util.
537
5384.3 Tue Dec 4 20:33:14 CET 2007
539 - calls to the idle function could cause stack corruption
540 when the stack changed.
541 - do no longer rely on the presence of EV::DNS if EV is used
542 (because it is gone), but instead take avdantage of EV::ADNS
543 if available.
544 - add ($) prototypes to all functions in Coro::Storable.
545 - use a conventional (safer) idle callback in Coro::EV.
546 - do accept quickly in Coro::Debug to avoid endless loops.
547
5484.22 Fri Nov 30 16:04:04 CET 2007
549 - really use optimised versions for Event and EV in Coro::Util
550 and Coro::Handle.
551
5524.21 Sun Nov 25 10:48:59 CET 2007
553 - fix a spurious memory read.
554 - Coro::EV no longer keeps the eventloop "alive".
555
5564.2 Fri Nov 9 20:47:05 CET 2007
557 - enable/disable tracing from a new coroutine, not a pooled one.
558 - fix a memleak in Coro::Event.
559 - removed killall call from fork_eval.
560 - made sure store_fd is already loaded so that fork_eval
561 does not have to parse autoload in each subprocess.
562 - only use assembly method if -O switch is in $Config{optimize}.
563 - add (optional) Coro::EV module, so far the best event loop module
564 directly supported by Coro.
565 - if the event model is EV, use EV::DNS to resolve
566 stuff in Coro::Util.
567 - don't get confused by multiple event notifications in Coro::Handle.
568 - initial support for EV (libevent interface).
569 - require Event and EV using configure_requires, to force their existance.
570
5714.13 Wed Oct 24 07:26:45 CEST 2007
572 - add Coro::Storable::blocking_thaw.
573 - use a vastly more complicated technique to localise
574 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
575 - use a coroutine for the idle callback Coro::Event,
576 instead of running Event in the current coroutine context.
577 This also catches recursive invocations.
578 - actually report fork errors in gethostbyname and inet_aton.
579
5804.11 Thu Oct 11 02:40:24 CEST 2007
581 - port to threaded perls.
582
5834.1 Thu Oct 11 02:38:16 CEST 2007
584 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
585 be local to each coro (see Coro::State).
586 - incompatible change: for very deep reasons, cede and cede_notself
587 cannot return anything, so nothing will be returned.
588 - possibly bring back 5.10 compatibility (untested).
589 - work around stupid (and wrong) warning on 5.10 :(.
590 - overlay the saved state over the context stack. This saves
591 a few hundred bytes per coroutine on average and also
592 speeds up context switching a bit.
593 - further tune default stack sizes.
594 - (more) correctly calculate stack usage in coro_rss.
595 - Coro::Storable::blocking_* did not properly lock
596 resulting in races between coroutines.
597 - added Coro::Storable::guard.
598 - stopping to trace a coroutine could destroy the cctx of
599 an unrelated coroutine.
600 - explain the relationship between Perl and C coroutines in
601 more detail in Coro::State.
602 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
603 causing a fork per resolve. This also affected Coro::Socket.
604 - switch to a separate stack in $coro->call/eval to avoid
605 invalidating pointers.
606
6074.03 Sat Oct 6 21:24:00 CEST 2007
608 - added Coro::throw method.
609 - minor code cleanups.
610
6114.02 Sat Oct 6 02:36:47 CEST 2007
612 - fix a very minor per-coroutine memleak (a single codereference).
613 - fixed a bug where the currently in-use c context would be freed
614 prematurely (can happen only when programs change the stacksize
615 or use tracing).
616 - tracing can no longer keep a coro alive after it terminated.
617 - do static branch prediction in the common path for gcc. gives
618 about 2-5% speed improvement here.
619
6204.01 Fri Oct 5 22:10:49 CEST 2007
621 - instead of recreating *a* standard output handle we simply
622 use STDOUT, which is faster and hopefully more robust.
623
6244.0 Fri Oct 5 12:56:00 CEST 2007
625 - incompatibly changed Coro::Storable::freeze.
626 - major new feature: added Coro::Debug, for interactive coroutine
627 debugging, tracing and much more.
628 - major bug fix: unbelievable, but true: $_, $/ and many other
629 "saved" variables actually weren't being saved. This has been fixed,
630 of course, while increasing performance while losing all the save
631 flags.
632 - save flags are gone, and all the api functions dealing with them.
633 - added Coro::Semaphore::adjust.
634 - added Coro::Util::fork_eval.
635 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
636 - added Coro::killall.
637 - reduce initial stack sizes to allow for "micro-coroutines".
638 - better async_pool resource management, moved parts of async_pool
639 handling to XS (major speed improvement).
640 - actually croak before modifying important data structures.
641 - refuse to transfer while compiling.
642 - possibly support eval EXPR better now.
643 - enable assembly per default on linux+bsd x86+amd64.
644 - all internal members were renamed _something for easier subclassing.
645 - many minor tweaks.
646
6473.63 Wed May 16 14:10:06 CEST 2007
648 - implement handcoded assembly for x86/amd64 SVR ABI.
649
6503.62 Fri Apr 27 21:36:06 CEST 2007
651 - upgrade libcoro (which might set unwind info correctly).
652 - change default on linux to setjmp/longjmp.
653
6543.61 Thu Apr 19 12:36:18 CEST 2007
655 - Coro::Storable caused an endless loop when thawing invalid
656 pst's sometimes.
657 - use a Semaphore in Coro::Storable, as Storable doesn't
658 seem to be reentrant (although it is documented to
659 be threadsafe...).
660 - fix Coro::Signal to bring back the original unreliable
661 but stateful semantics.
662 - fixed a lot of typos in Coro.pm (patch submitted by David
663 Steinbrunner, which applied flawlessly).
664
6653.6 Sat Apr 14 17:13:31 CEST 2007
666 - added some bugfixes to get eg/myhttpd working again.
667 - added Coro::Storable for often-cede'ing freeze/thaw.
668 - try to do a clean exit when a coroutine calls exit
669 (EXPERIMENTAL).
670 - got rid of indirect call through _coro_init.
671 - updated the partly antique examples in eg/ to
672 work again and be a bit less magic, too.
673 - fixed Coro::Signal semantics to work as documented again.
674
6753.55 Sun Mar 25 01:20:47 CET 2007
676 - add SAVE_DEFFH to save the default filehandle and enable
677 it by default.
678 - finally move socket-operations from Coro::Socket to Coro::Handle
679 to be able to unblock foreign sockets.
680 - add Coro::State::save_also and guarded_save.
681 - add count accessor to Coro::Semaphore.
682 - add Coro::State::cctx_stacksize.
683 - just for the fun of it, do not rely on implicit context,
684 which can dramatically improve performance, but people
685 using windows-process-emulation perls do not care much about
686 performance.
687
6883.51 Sun Mar 4 14:18:04 CET 2007
689 - fixed a problem when you weakened references to Coro::State's
690 (patch by Yuval Kogman).
691
6923.501 Wed Feb 28 12:44:07 CET 2007
693 - rename some global symbols as macosx from hell redefines
694 them without asking.
695
6963.5 Tue Feb 13 20:22:53 CET 2007
697 - do AnyEvent model detection earlier, avoiding problems
698 caused by first using AnyEvent and later Coro::Event.
699 - implement and document Coro::Event event objects.
700 - fix a potential problem in Coro::Event causing crashes.
701 - initialise PL_comppad when creating a new coroutine,
702 avoids crashes on early coro destruction.
703
7043.41 Mon Jan 22 19:19:49 CET 2007
705 - readline on Coro::Handle did not support undefined $/,
706 nor did it deliver partial lines on EOF or error.
707 - implement malloc fallback for stack allocation because
708 stupid broken idiotic OSX has a stupid broken
709 idiotic fits-the-whole-os mmap "implementation" and
710 my dick feels longer if Coro is portable even to
711 obsolete platforms.
712
7133.4 Fri Jan 19 21:52:54 CET 2007
714 - remove t/09_timer.t, as it isn't really testing much
715 but was rather flaky in practise.
716 - async_pool coro would keep arguments and callback alive until
717 it was reused.
718 - cancellation of a coroutine could cause spurious idle calls
719 in cede_notself.
720
7213.3 Sat Jan 6 03:45:00 CET 2007
722 - implement $coro->on_destroy.
723 - Coro::Event blocking semantics have been changed,
724 documented and - hopefully - improved.
725 - fix nice adding, not subtracting, from priority.
726 - fix ->prio and api_is_ready (patch by Mark Hinds).
727 - fixed an assert ("... == prev__cctx->idle_te")
728 that could errronously trigger.
729 - fix various large and small memleaks.
730 - use a (hopefully) more stable cancel implementation
731 that immediately frees the coroutine data.
732 - cede/cede_notself return a status now.
733 - added Coro::guard function.
734 - added a global coroutine pool for jobs (on my machine,
735 I can create and execute 48k simple coros/s with async,
736 and 128k coros with async_pool).
737 - Coro::AIO now uses the coroutine priority as io priority.
738
7393.2 Fri Dec 22 05:07:09 CET 2006
740 - improve portability to slightly older perls.
741 - use cleaner coroutine destruction.
742 - simplify configuration for users.
743 - optionally (unrecommended) prefer perl functions over
744 their coro replacements.
745
7463.11 Tue Dec 5 13:11:24 CET 2006
747 - fixed some bogus assert's, but as perl.h disables assert even
748 without NDEBUG (thank you very much), not too many people should
749 notice (that did include myself). Andreas König noticed, though :)
750 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
751 it. Also noticed by Andreas König :)
752 - save/restore tainted status.
753 - verified to pass the testsuite on my 5.9.5.
754
7553.1 Mon Dec 4 23:03:40 CET 2006
756 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
757 - incompatible change: transfer flags are now per-state.
758 - give a better error message on deadlock.
759 - document Coro::nready.
760 - enhanced testsuite.
761
7623.01 Sun Dec 3 23:47:42 CET 2006
763 - forgot to include Coro::Timer.
764
7653.0 Sun Dec 3 22:57:25 CET 2006
766 - the "FINALLY COMPLETELY STABLE" release (coming soon:
767 the "FAMOUS LAST WORDS" release).
768 - implement a new stack sharing algorithm, which uses a stack
769 pool (size currently hardcoded).
770 - make stack sharing mandatory (it no longer uses a heuristic).
771 - eval/die no longer cause weird problems under heavy use.
772 - Coro::Event could cause livelocks if it was used but
773 no Coro::Event watchers were used.
774 - Coro::Event now uses asynccheck as prepare does not
775 check for changed watchers.
776 - Coro::Event allows multiple waiting coros and will wake up one
777 per event.
778 - Coro::Event should be cleaner and more efficient now.
779 - new utility function Coro::unblock_sub.
780 - document the sad fact that Event is no longer reentrant.
781 - putting a coroutine into the ready queue twice could under
782 some circumstances lead to stack corruption.
783 - minor incompatibility: subclassing Coro::State is supported
784 directly now without going through a _coro_state member.
785 - state/coro switching is much faster now.
786 - very minor optimisations and code/documentation cleanup.
787 - avoid problems due to compiler inlining.
788 - removed timers from Coro::Timer -> use AnyEvent instead.
789 - replaced Coro::idle coroutine by (cleaner) idle handler.
790 - updated to newest libcoro.
791 - implement enhanced support for valgrind.
792 - implement is_ready and return value for ready.
793 - removed Coro::Cont, it was a misnomer (it's generators),
794 and it was somewhat annoying to get it right. Will come back
795 if somebody asks for it :)
796 - many ->wait methods and Coro::Event could return
797 spuriously without the event having happened.
798
7992.5 Tue Nov 7 12:22:33 CET 2006
800 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
801 use AnyEvent, moved them to Coro/.
802 - added Coro::LWP which contains all the uglyness required to
803 make LWP non-blocking.
804 - should work with perl 5.9.x now (Andreas König made me do it).
805 - fixed another bug in Coro::Select when the timeout was undef.
806 - reuse PL_start_env for all coros, saves some memory per coroutine.
807 - manage PL_top_env differently, hopefully to avoid panic: top_env.
808 - timeout argument was not properly used in Coro::Socket.
809 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
810 - emulate undocumented(!) functionality of IO::Socket required
811 by LWP(!!).
812 - updated eg/lwp to work with newer lwp's.
813 - remove "FATAL: uncaught exception" prefix. Coroutines that die
814 kill the whole process, just as exceptions in the main "coroutine"
815 did already.
816
8172.1 Wed Nov 1 23:01:13 CET 2006
818 - fix a long-standing bug in Coro::Select where select with
819 zero timeout would instead change the current default filehandle.
820 - use a simpler and hopefully more robust way to clone padlists
821 (uses less memory and a perl function instead of our own).
822 - coro can now create a stack guard area on many architectures.
823 - Coro::AIO properly reexports additional functions from IO::AIO.
824 - updated libcoro with a workaround for OS X,
825 pach and testing by Michael Schwern.
826
8272.0 Tue Oct 24 05:47:17 CEST 2006
828 - support additional aio requests in Coro::AIO.
829
8301.9 (never properly released due to a glitch)
831
8321.8 Thu Feb 2 00:59:06 CET 2006
833 - applied suggested patch by SAMV to avoid problems during stupid
834 mark & sweep gc run.
835 - applied patch by Scott Walters for 5.9.3 compatibility.
836
8371.7 Tue Dec 27 01:41:58 CET 2005
4 - added Coro::AIO, a thin wrapper around IO::AIO. 838 - added Coro::AIO, a thin wrapper around IO::AIO.
5 - improved Makefile.PL explanations. 839 - improved Makefile.PL explanations.
6 840
71.6 Mon Dec 12 21:30:05 CET 2005 8411.6 Mon Dec 12 21:30:05 CET 2005
8 - additionally save PM_curpm might fix as-of-yet 842 - additionally save PM_curpm might fix as-of-yet

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