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Comparing Coro/Changes (file contents):
Revision 1.108 by root, Sat Aug 20 01:10:01 2005 UTC vs.
Revision 1.526 by root, Thu Oct 1 23:51:33 2009 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
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)).
7TODO: unready_all
8TODO: myhttpd header parsing
9TODO: channel->maxsize(newsize)?
10
11 - Coro::Storable destroyed the prototypes of the functions it wrapped.
12 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
13 - added section on "windows process emulation" to the manpage,
14 after a not-so-fruitful (nor-friendly) "discussion" with chip
15 salzenberg (discussion implies arguments, but his only arguments
16 were ad-hominems, one wonders why he started it in the first
17 place). I hope this explains it well enough for him to understand,
18 and maybe well enough for others to understand.
19 - use common::sense everywhere now.
20 - idle callbacks are no longer supported, use idle coros instead.
21 - print a thread listing when a deadlock is detected.
22
235.17 Sat Aug 22 23:09:31 CEST 2009
24 - work around a bug in the perl debugger causing crashes
25 when running under the debugger by marking _pool_handler as nodebug.
26 - speed up Coro::async considerably.
27 - try some hacks to get netbsd to work "more often" - their broken
28 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
29 - convert Coro to AE 5.0 API.
30
315.162 Tue Jul 28 04:04:03 CEST 2009
32 - perl 5.8.2 is now minimum requirement.
33 - skip t/19_handle.t on broken windows perls.
34
355.161 Wed Jul 22 04:47:38 CEST 2009
36 - Coro::AnyEvent::poll could have a different prototype when EV was
37 used as backend (analyzed by Tatsuhiko Miyagawa).
38 - Coro::AnyEvent errornously initialised the event loop when loaded,
39 not on demand.
40 - try to workaround rare */t/01_unblock.t failures.
41
425.16 Tue Jul 21 01:44:37 CEST 2009
43 - Coro::AnyEvent failed to hook into the event loop
44 when no threads had been readied between detecting
45 the event loop and actually running it.
46 - considerably speed up Coro::Select by taking avdantage
47 of AnyEvent > 4.8 and some other optimisations.
48 - implement paragraph readline mode in Coro::Handle
49 (based on patches by Zsbán Ambrus).
50 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
51 and analyzed by Yasuhiro MATSUMOTO).
52 - clarified libcoro license and copyright.
53 - someone stole my EXTRA_META!!!
54 - implement Coro::Select::patch_pp_sselect and it's brother,
55 for hardcode select overriding.
56
575.151 Mon Jul 6 05:41:57 CEST 2009
58 - backport to windows process emulation code again (patch by
59 Yasuhiro MATSUMOTO).
60 - slightly update Coro::MakeMaker.
61
625.15 Tue Jun 30 10:28:06 CEST 2009
63 - deprecate Coro::Socket, document how to get ipv6 support via
64 AnyEvent::Socket instead.
65 - implement signal->wait ($cb) interface, similar to semaphores.
66 - work around SvOK not supporting getmagic, so we have to getmagic
67 to test for undef :/ (reported by Matthias Waldorf).
68 - load Coro::AnyEvent in all modules using AnyEvent.
69 - work around perl corrupting our internal data structures,
70 reported by Tokuhiro Matsuno.
71 - enable per-coroutine real and cpu time gathering
72 (Coro::State::enable_times).
73
745.14 Wed Jun 24 01:37:48 CEST 2009
75 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
76 as this seems to have been a difficult concept (poll, sleep, idle,
77 idle_upto).
78 - add Coro::AnyEvent::readable/writable functions.
79 - clarify Coro::EV/Event/AnyEvent manpages.
80 - free per-thread global scalars in the thread calling ->cancel, to
81 avoid crashes when $_, $@ etc., are magical but some of those
82 had already been freed.
83 - "unexperimentalise" the callback interface for Coro::Semaphore.
84 - speed up ready queue management/context switching by using a linked
85 list instead of an array (~5-10%).
86 - implement "watch" command in Coro::Debug shells.
87 - for fun, implement time-slicing as an example in the manpage.
88 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
89 Coro::Event, use the normal AnyEvent handling instead of dieing
90 (the same is true for Coro::Handle).
91 - properly document Coro::EV::timed_io_once.
92 - avoid unneccessary ->cancel calls in Coro::Handle.
93 - maybe make it work on mingw32 with win32 backend
94 (based on patch by Yasuhiro Matsumoto).
95
965.132 Fri May 29 09:00:39 CEST 2009
97 - do not keep a reference to the argument itself in
98 Coro::Semaphore::guard, as it could change later.
99 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
100 should support a prepare callback.
101
1025.131 Mon Mar 16 23:20:37 CET 2009
103 - implement and document Coro->suspend, Coro->resume.
104 - fix Coro::Select implementation to not (often) close
105 the passed file descriptors (testcase provided by pippijn).
106
1075.13 Mon Dec 15 21:51:42 CET 2008
108 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
109 - don't set diehook to C<undef> but instead to NULL, to avoid
110 spurious warnings.
111 - fix a lot of bugs in Coro::SemaphoreSet.
112 - Coro::SemaphoreSet will less often create a semaphore needlessly.
113 - add Coro::SemaphoreSet::count and wait methods.
114 - take advantage of the new Guard module.
115 - deprecate Coro::guard.
116 - try to fix the dreaded 01_unblock tests once more. I hate it when
117 testsuites need more fixing than the code they are supposed to test.
118 - croak in more cases when a required callback isn't resolvable.
119 - fix some minor issues in Coro::State->call/eval.
120 - use current coroutine context instead of a temporary one
121 when temporarily switching to another coroutine.
122 - do not call C-level on_destroy handlers during global destruction,
123 to avoid needless segfaults.
124
1255.12 Sun Dec 7 13:30:38 CET 2008
126 - add default config for MirOS, which seems to be a bug-to-bug
127 compatible fork of openbsd ("world domination by releasing
128 openbsd cvs before the openbsd folks do it" or so :).
129 - free_padlist did destroy the names pad, not good, but didn't
130 seem to bother perl - this could fix issues such as eval ""
131 inside a function called from multiple coroutines.
132 - use a different method to detect destruction time.
133 - be more careful when freeing padlists just before global
134 destruction.
135 - fixed and expanded the call/cc example.
136 - renamed _terminate to _coro_run.
137 - new method Coro::Channel->shutdown.
138 - try pthreads on openbsd <4.4 (broken sigaltstack, will
139 pthreads fare better?).
140 - be less picky about destroying "a" running coroutine.
141
1425.11 Tue Nov 25 21:49:05 CET 2008
143 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
144 working code with failed assertions, introducing more bugs than
145 it fixes, requiring elaborate workarounds :(
146
1475.1 Mon Nov 24 08:54:59 CET 2008
148 - wrote a small introductory tutorial - Coro::Intro.
149 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
150 - Coro::Select did errornously dup the file descriptors
151 and didn't work with all AnyEvent backends.
152 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
153 LWP data transfers.
154 - disassociate c contexts from coro objects - this is agruably more
155 correct, but mostly allows sharing of cctxs between coro and state
156 objects, for added memory savings and speed increases.
157 - bumped $Coro::POOL_RSS up to 32kb by default.
158 - no longer set the optype to OP_CUSTOM, as B::* understandably
159 doesn't like this very much (and we *are* a type of entersub).
160 - implement state cloning, just to prove that call/cc can be done.
161 - automatically load Coro::AnyEvent in Coro::Handle.
162 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
163 do not have this method (and don't need it either).
164 - speed up generic anyevent methods in Coro::Handle by using rouse
165 callbacks.
166 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
167 others. It also makes the debugger happier, as you can trace
168 through the idle threads now.
169 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
170 - eg/event was pretty broken.
171 - better 5.8.6 compatibility.
172
1735.0 Thu Nov 20 10:35:05 CET 2008
174 - NEW ARCHITECTURE: use the latest 4.x version if you experience
175 stability issues.
176 - bump API version to 7 - all dependents must be recompiled.
177 - removed timed_* functions - they were not being used anyways
178 and should be replaced by a more generic mechanism -
179 and were annoying to support anyways :)
180 - removed SemaphoreSet's waiter method - use sem method instead.
181 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
182 - async_pool did free a scalar value twice
183 ("Attempt to unreference...").
184 - fix a longstanding bug where calling terminate on a coro that
185 was waiting for a semaphore that was just becoming available
186 would cause a deadlock (semaphore would get into a state where
187 it was available but waiters were still blocked).
188 - calling throw on a coroutine that is waiting for a semaphore will
189 no longer make it acquire the semaphore (and thus leak a count).
190 - perl's process emulation is now not even theoretically supported
191 anymore.
192 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
193 conversion of callback-style to blocking-style.
194 - new methods $coro->schedule_to and ->cede_to, to specifically
195 schedule or cede to a specific coroutine.
196 - new function Coro::Semaphore::wait.
197 - use named constants in Coro::Channel (Richard Hundt).
198 - directly patch the entersub opcode calling SLF functions (cede,
199 transfer and so on). this does speed up context switching, but
200 more importanly, it frees us from the hardcoded behaviour of
201 entersub, so we might actually be able to return something from
202 those functions and atcually create new ones.
203 - take advantage of __builtin_frame_address on gcc.
204 - expose THX in coroapi (not sure whether this was a wise decision,
205 as "threaded" perls are running at half speed anyways).
206 - implement execute_slf (schedule-like-function) interface that makes
207 it possible to implement schedule-like-functions in XS.
208 - use new SLF interface to massively speed up Coro::EV by roughly a
209 factor of two.
210 - used new SLF interface to massively speed up Coro::Semaphore by a
211 factor of three.
212 - used new SLF interface to speed up Coro::AIO by roughly a factor of
213 four and reduce its memory usage considerably.
214 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
215 for a nice speedup and vastly more correct behaviour. Also implement
216 a new method "sem" to get at the underlying semaphore object.
217 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
218 (in comparison) 20-40% speedup.
219 - used new SLF interface to reimplement Coro::Signal gaining
220 some unknown (because I was too lazy), but certain, speedup, and also
221 making signals reliable for the first time.
222 - used new SLF interface and other optimisations to speed up async_pool
223 by a factor of two. It also doesn't rely on perl's exception mechanism
224 to exit anymore. The overhead for terminating an async_pool, coro over
225 a normal async is now very small.
226 - sped up coroutine creation/destruction by 40%.
227 - forgot to include Coro/libcoro/README in the dist for all these years.
228 - work around a freebsd pthreads bug (manual testcancel is required as
229 pthread_cond_wait isn't a cancellation point on freebsd).
230 - use new rouse functions to speed up and simplify Coro::BDB.
231 - make "prefer perl native functions" work with threaded perls.
232 - condense Coro::Debug ps output, hint at v and w flags.
233 - (libcoro) lots of minor cleanups and portability improvements.
234
2354.914 Wed Nov 19 12:54:18 CET 2008
236 - fix a disastrous bug in the readline optimisation
237 introduced in 4.801.
238
2394.913 Sat Nov 15 07:58:28 CET 2008
240 - async_pool did free a scalar value twice
241 ("Attempt to unreference...").
242
2434.912 Thu Nov 13 18:31:23 CET 2008
244 - minor cleanups.
245 - use much larger stacks on linux and perl < 5.8.8.
246 - Coro::Debug::new_unix_server did not unlink the socket
247 when destroyed.
248
2494.911 Tue Nov 11 04:26:17 CET 2008
250 - "port" to threaded perls.
251
2524.91 Mon Nov 10 05:36:38 CET 2008
253 - the ->throw exception object no longer leaks.
254 - creating a new cctx leaked a scopestack entry (memleak).
255 - new coroutines didn't get created with a zero flags field
256 (unknown impact).
257 - calling ->throw on a not-yet-started coroutine should now work
258 instead of being ignored.
259 - ->throw is now supported on Coro::State objects.
260 - clean up cctx creation code a bit.
261 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
262
2634.9 Sat Nov 8 17:45:27 CET 2008
264 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
265 - (libcoro) no longer leak threads in the experimental pthread backend,
266 also speed it up considerably.
267 - (libcoro) do not rely on makecontext passing void *'s unscathed.
268 - fix compiletime dependencies on libcoro in the Makefile.
269 - cctx_count wasn't always updated properly.
270 - Coro::State::cctx_stacksize wasn't applied correctly.
271 - new function Coro::State::cctx_max_idle.
272 - the default max number of idle C contexts is now 4.
273 - (libcoro) try harder to get _setjmp/_longjmp.
274 - (libcoro) cleanup and extend the libcoro API to officially
275 allow the creation of empty source contexts.
276 - very experimental workaround for the totally broken netbsd platform.
277 - tried to hack around openbsd bugs.
278
2794.804 Wed Nov 5 16:36:00 CET 2008
280 - Coro::Debug::new_unix_server would not create a non-blocking listening
281 socket, sometimes causing freezes.
282 - (libcoro) fix misaligned stack points for setjmp and assembly
283 methods, which can cause crashes on x86/x86_64 with a sufficiently
284 aggressive compiler.
285 - new function: Coro::Debug::new_tcp_server.
286 - move ->throw into the Coro class because it only works on coro objects.
287
2884.803 Mon Nov 3 17:16:12 CET 2008
289 - (libcoro) use a global asm statement to become independent of gcc
290 otpimisations for CORO_ASM (thanks to pippijn for the idea).
291 - try to workaround yet another broken bsd, this time dragonfly.
292
2934.802 Thu Oct 30 10:56:12 CET 2008
294 - support -fno-omit-frame-pointer on x86 with the assembly method.
295 - tune 01_unblock.t tests a bit.
296
2974.801 Wed Oct 22 18:33:37 CEST 2008
298 - improve readline speed for very long "lines".
299 - backport to 5.8.8.
300
3014.8 Thu Oct 2 13:34:40 CEST 2008
302 - new function Coro::AIO::aio_wait.
303 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
304 - greatly speed up and reduce memory usage of Coro::AIO requests.
305 - implement some other µ-optimisations.
306
3074.749 Mon Sep 29 14:40:12 CEST 2008
308 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
309
3104.748 Sat Sep 27 14:03:19 CEST 2008
311 - implement, but do not document, PerlIO::cede(granularity).
312 - Coro::Storable forgot to wrap Storable::pstore.
313 - work around the multitude of leaks and memory corruption
314 bugs in PerlIO::via by using our own C-level perliol. As a side
315 effect, Coro::Storable is now much, much, much faster.
316
3174.747 Tue Sep 23 01:59:41 CEST 2008
318 - fix a per-cv memleak (one empty array was leaked per
319 code reference).
320 - avoid a crash in coro->call|rss when the coroutine was already
321 destroyed (most noticably when using Coro::Debug::ps :)
322 - also protect *Storable::FILE.
323 - push up default storable granularity to 20ms.
324
3254.746 Sun Sep 21 03:22:20 CEST 2008
326 - be more insistent on locking Storable against reentrancy
327 in Coro::Storable.
328 - move swap_def?v and throw to Coro::State, as documented.
329
3304.745 Thu Jul 24 00:14:38 CEST 2008
331 - remove debugging code related to MgPV_nolen_const, also try to
332 make it compile with perl 5.8.6 (yes, apple apparently loves
333 outdated software). Reported by John S.
334
3354.744 Tue Jul 8 22:06:35 CEST 2008
336 - correctly provide default DIE/WARN handlers as documented.
337 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
338 implementations inside perl work fine for us.
339
3404.743 Mon Jun 16 00:21:57 CEST 2008
341 - when using Coro::EV without running EV::loop it could
342 result in busy-waiting for events, this has been fixed.
343 - reduce codesize and improve performance by using EV_DEFAULT_UC.
344
3454.742 Sat May 31 14:10:21 CEST 2008
346 - implement a workaround for (some) perl <5.8.8 versions.
347 - require EV 3.3+.
348
3494.741 Fri May 30 23:33:09 CEST 2008
350 - tell netbsd how utterly broken their imitation of an OS is
351 and refuse to build by default if pthreads are in use.
352 - switch to "s" method on all bsd's by default, as their ucontext
353 stuff seems just too broken.
354 - fix a bug in Coro::Select.
355
3564.74 Thu May 29 20:05:31 CEST 2008
357 - do not test Coro::LWP for lack of dependencies.
358 - do not test Coro::Select for lack of working perls.
359
3604.73 Thu May 29 2008
361 - fix a bug in Coro::EV which would cause it to block despite
362 there being runnable coroutines.
363 - sprinkle "no warnings" freely over everything, also suppress
364 warnings for some other modules.
365 - fix typo in WSAEWOULDBLOCK.
366
3674.72 Sun May 25 05:14:36 CEST 2008
368 - tweak META.yaml a bit, unfortunately, there is no documented way
369 to have optional dependencies with CPAN. doh :(
370 - avoid running some tests on windows because they would fail due to
371 perl bug (broken fork, broken pipes...).
372 - work around perl on windows bugs where perl returns undocumented
373 error codes for sysread, syswrite etc. by taking advantage
374 of AnyEvent's workaround for that problem.
375 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
376 a common perl implementation bug on windows.
377 - use unix domain sockets in testsuite to work around
378 common perl implementation bugs on widows (they are emulated by
379 tcp sockets on windows. ugh.)
380
3814.71 Sat May 24 20:01:27 CEST 2008
382 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
383 - take advantage of async name resolution of AnyEvent::Util.
384 - work around brutal inet_aton override in Coro::LWP.
385 - take advantage of the readyhook in Coro::EV, for smoother
386 scheduling.
387
3884.7 Sun May 11 00:32:19 CEST 2008
389 - completely reworked the Coro manpage.
390 - added Coro::AnyEvent, generic event loop integration.
391 - implement cancel, ready and kill commands in Coro::Debug.
392 - document find_coro in Coro::Debug.
393 - incompatible change: rename has_stack to has_cctx.
394 - Coro::AIO and Coro::BDB no longer force event model detection,
395 use AnyEvent::AIO and AnyEvent::BDB.
396
3974.6 Sat Apr 26 10:05:14 CEST 2008
398 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
399 by the Coro module. It was a mistake to have it in the first place.
400 - (experimental) support for activestate perl 5.10 (method "w").
401 - (experimental) support for strawberry perl (method "a").
402 - coro_sigelem_set did not return a value although it had to,
403 actual impact unknown.
404
4054.51 Mon Apr 14 13:28:27 CEST 2008
406 - make it compile again on 5.8.
407
4084.50 Thu Apr 10 09:43:17 CEST 2008
409 - I did it twice! (see 4.49).
410
4114.49 Sun Apr 6 21:23:31 CEST 2008
412 - grr, instead of compiling the recent changes on 5.10 only they
413 were compiled on 5.8 only.
414
4154.48 Sun Apr 6 20:36:46 CEST 2008
416 - allow coroutine switches during eval's under 5.10.x, as it seems
417 the parser is a per-interpreter option now, so this is safe
418 (this might fix the odd crashing bug).
419 - drop support for 5.9.x versions: they are dead, jim.
420
4214.47 Sun Apr 6 00:37:52 CEST 2008
422 - force cctx allocation on API calls: we know we need to force one
423 and gcc actually manages to confuse our heuristic nowadays,
424 leading to crashes and worse.
425 - document force_cctx.
426
4274.46 Fri Apr 4 22:05:43 CEST 2008
428 - upgrade libcoro, resulting in pthread-backend (which was only created
429 to fulfill the rules of the programming languages shootout).
430
4314.45 Thu Mar 13 11:55:36 CET 2008
432 - fix a file leaking bug in eg/mhyttpd that would allow
433 downloading of any file (reported by oesi).
434 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
435 (also add testcase).
436 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
437 apparently having loads of fun with that).
438 - implement $state->swap_defsv, ->swap_defav and document ->throw.
439
4404.4 Wed Feb 13 16:44:29 CET 2008
441 - only assume .cfi pseudo isns exist on GNU/Linux.
442 - add get_timed method to Coro::Channels.
443 - fixed Coro::Debug manpage.
444 - perl 5.11 compatbility improvement based on patch by
445 Andreas König.
446
4474.37 Sun Jan 20 11:25:23 CET 2008
448 - soften the check for an active parser for perl 5.10 (avoiding
449 "Coro::State::transfer called while parsing" in many cases).
450
4514.36 Sun Jan 13 10:53:56 CET 2008
452 - reset diehook when terminating from an async_pool as to not
453 trigger any __DIE__ handlers.
454
4554.35 Sun Jan 13 04:14:13 CET 2008
456 - "bt" debug command now displays any exceptions
457 from longmess and also skips the innermost
458 stackframes, giving more useufl output.
459 - allow backtraces in coroutines blocked in Coro::EV,
460 at a <1% speed hit.
461 - handle localising of $SIG{__WARN__} and __DIE__
462 properly (with a proper amount of dirty hacking).
463
4644.34 Sat Dec 22 17:49:53 CET 2007
465 - upgrade to EV version 2.0 API.
466
4674.33 Mon Dec 17 08:36:12 CET 2007
468 - make Coro::AIO etc. loadable in the absence of EV.
469
4704.32 Mon Dec 17 07:46:02 CET 2007
471 - majorly improved Coro::Handle's performance with Coro::EV.
472 - implemented the until now mythical Coro::BDB module.
473 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
474
4754.31 Wed Dec 5 12:32:39 CET 2007
476 - remove warn statement form Coro::Util.
477
4784.3 Tue Dec 4 20:33:14 CET 2007
479 - calls to the idle function could cause stack corruption
480 when the stack changed.
481 - do no longer rely on the presence of EV::DNS if EV is used
482 (because it is gone), but instead take avdantage of EV::ADNS
483 if available.
484 - add ($) prototypes to all functions in Coro::Storable.
485 - use a conventional (safer) idle callback in Coro::EV.
486 - do accept quickly in Coro::Debug to avoid endless loops.
487
4884.22 Fri Nov 30 16:04:04 CET 2007
489 - really use optimised versions for Event and EV in Coro::Util
490 and Coro::Handle.
491
4924.21 Sun Nov 25 10:48:59 CET 2007
493 - fix a spurious memory read.
494 - Coro::EV no longer keeps the eventloop "alive".
495
4964.2 Fri Nov 9 20:47:05 CET 2007
497 - enable/disable tracing from a new coroutine, not a pooled one.
498 - fix a memleak in Coro::Event.
499 - removed killall call from fork_eval.
500 - made sure store_fd is already loaded so that fork_eval
501 does not have to parse autoload in each subprocess.
502 - only use assembly method if -O switch is in $Config{optimize}.
503 - add (optional) Coro::EV module, so far the best event loop module
504 directly supported by Coro.
505 - if the event model is EV, use EV::DNS to resolve
506 stuff in Coro::Util.
507 - don't get confused by multiple event notifications in Coro::Handle.
508 - initial support for EV (libevent interface).
509 - require Event and EV using configure_requires, to force their existance.
510
5114.13 Wed Oct 24 07:26:45 CEST 2007
512 - add Coro::Storable::blocking_thaw.
513 - use a vastly more complicated technique to localise
514 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
515 - use a coroutine for the idle callback Coro::Event,
516 instead of running Event in the current coroutine context.
517 This also catches recursive invocations.
518 - actually report fork errors in gethostbyname and inet_aton.
519
5204.11 Thu Oct 11 02:40:24 CEST 2007
521 - port to threaded perls.
522
5234.1 Thu Oct 11 02:38:16 CEST 2007
524 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
525 be local to each coro (see Coro::State).
526 - incompatible change: for very deep reasons, cede and cede_notself
527 cannot return anything, so nothing will be returned.
528 - possibly bring back 5.10 compatibility (untested).
529 - work around stupid (and wrong) warning on 5.10 :(.
530 - overlay the saved state over the context stack. This saves
531 a few hundred bytes per coroutine on average and also
532 speeds up context switching a bit.
533 - further tune default stack sizes.
534 - (more) correctly calculate stack usage in coro_rss.
535 - Coro::Storable::blocking_* did not properly lock
536 resulting in races between coroutines.
537 - added Coro::Storable::guard.
538 - stopping to trace a coroutine could destroy the cctx of
539 an unrelated coroutine.
540 - explain the relationship between Perl and C coroutines in
541 more detail in Coro::State.
542 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
543 causing a fork per resolve. This also affected Coro::Socket.
544 - switch to a separate stack in $coro->call/eval to avoid
545 invalidating pointers.
546
5474.03 Sat Oct 6 21:24:00 CEST 2007
548 - added Coro::throw method.
549 - minor code cleanups.
550
5514.02 Sat Oct 6 02:36:47 CEST 2007
552 - fix a very minor per-coroutine memleak (a single codereference).
553 - fixed a bug where the currently in-use c context would be freed
554 prematurely (can happen only when programs change the stacksize
555 or use tracing).
556 - tracing can no longer keep a coro alive after it terminated.
557 - do static branch prediction in the common path for gcc. gives
558 about 2-5% speed improvement here.
559
5604.01 Fri Oct 5 22:10:49 CEST 2007
561 - instead of recreating *a* standard output handle we simply
562 use STDOUT, which is faster and hopefully more robust.
563
5644.0 Fri Oct 5 12:56:00 CEST 2007
565 - incompatibly changed Coro::Storable::freeze.
566 - major new feature: added Coro::Debug, for interactive coroutine
567 debugging, tracing and much more.
568 - major bug fix: unbelievable, but true: $_, $/ and many other
569 "saved" variables actually weren't being saved. This has been fixed,
570 of course, while increasing performance while losing all the save
571 flags.
572 - save flags are gone, and all the api functions dealing with them.
573 - added Coro::Semaphore::adjust.
574 - added Coro::Util::fork_eval.
575 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
576 - added Coro::killall.
577 - reduce initial stack sizes to allow for "micro-coroutines".
578 - better async_pool resource management, moved parts of async_pool
579 handling to XS (major speed improvement).
580 - actually croak before modifying important data structures.
581 - refuse to transfer while compiling.
582 - possibly support eval EXPR better now.
583 - enable assembly per default on linux+bsd x86+amd64.
584 - all internal members were renamed _something for easier subclassing.
585 - many minor tweaks.
586
5873.63 Wed May 16 14:10:06 CEST 2007
588 - implement handcoded assembly for x86/amd64 SVR ABI.
589
5903.62 Fri Apr 27 21:36:06 CEST 2007
591 - upgrade libcoro (which might set unwind info correctly).
592 - change default on linux to setjmp/longjmp.
593
5943.61 Thu Apr 19 12:36:18 CEST 2007
595 - Coro::Storable caused an endless loop when thawing invalid
596 pst's sometimes.
597 - use a Semaphore in Coro::Storable, as Storable doesn't
598 seem to be reentrant (although it is documented to
599 be threadsafe...).
600 - fix Coro::Signal to bring back the original unreliable
601 but stateful semantics.
602 - fixed a lot of typos in Coro.pm (patch submitted by David
603 Steinbrunner, which applied flawlessly).
604
6053.6 Sat Apr 14 17:13:31 CEST 2007
606 - added some bugfixes to get eg/myhttpd working again.
607 - added Coro::Storable for often-cede'ing freeze/thaw.
608 - try to do a clean exit when a coroutine calls exit
609 (EXPERIMENTAL).
610 - got rid of indirect call through _coro_init.
611 - updated the partly antique examples in eg/ to
612 work again and be a bit less magic, too.
613 - fixed Coro::Signal semantics to work as documented again.
614
6153.55 Sun Mar 25 01:20:47 CET 2007
616 - add SAVE_DEFFH to save the default filehandle and enable
617 it by default.
618 - finally move socket-operations from Coro::Socket to Coro::Handle
619 to be able to unblock foreign sockets.
620 - add Coro::State::save_also and guarded_save.
621 - add count accessor to Coro::Semaphore.
622 - add Coro::State::cctx_stacksize.
623 - just for the fun of it, do not rely on implicit context,
624 which can dramatically improve performance, but people
625 using windows-process-emulation perls do not care much about
626 performance.
627
6283.51 Sun Mar 4 14:18:04 CET 2007
629 - fixed a problem when you weakened references to Coro::State's
630 (patch by Yuval Kogman).
631
6323.501 Wed Feb 28 12:44:07 CET 2007
633 - rename some global symbols as macosx from hell redefines
634 them without asking.
635
6363.5 Tue Feb 13 20:22:53 CET 2007
637 - do AnyEvent model detection earlier, avoiding problems
638 caused by first using AnyEvent and later Coro::Event.
639 - implement and document Coro::Event event objects.
640 - fix a potential problem in Coro::Event causing crashes.
641 - initialise PL_comppad when creating a new coroutine,
642 avoids crashes on early coro destruction.
643
6443.41 Mon Jan 22 19:19:49 CET 2007
645 - readline on Coro::Handle did not support undefined $/,
646 nor did it deliver partial lines on EOF or error.
647 - implement malloc fallback for stack allocation because
648 stupid broken idiotic OSX has a stupid broken
649 idiotic fits-the-whole-os mmap "implementation" and
650 my dick feels longer if Coro is portable even to
651 obsolete platforms.
652
6533.4 Fri Jan 19 21:52:54 CET 2007
654 - remove t/09_timer.t, as it isn't really testing much
655 but was rather flaky in practise.
656 - async_pool coro would keep arguments and callback alive until
657 it was reused.
658 - cancellation of a coroutine could cause spurious idle calls
659 in cede_notself.
660
6613.3 Sat Jan 6 03:45:00 CET 2007
662 - implement $coro->on_destroy.
663 - Coro::Event blocking semantics have been changed,
664 documented and - hopefully - improved.
665 - fix nice adding, not subtracting, from priority.
666 - fix ->prio and api_is_ready (patch by Mark Hinds).
667 - fixed an assert ("... == prev__cctx->idle_te")
668 that could errronously trigger.
669 - fix various large and small memleaks.
670 - use a (hopefully) more stable cancel implementation
671 that immediately frees the coroutine data.
672 - cede/cede_notself return a status now.
673 - added Coro::guard function.
674 - added a global coroutine pool for jobs (on my machine,
675 I can create and execute 48k simple coros/s with async,
676 and 128k coros with async_pool).
677 - Coro::AIO now uses the coroutine priority as io priority.
678
6793.2 Fri Dec 22 05:07:09 CET 2006
680 - improve portability to slightly older perls.
681 - use cleaner coroutine destruction.
682 - simplify configuration for users.
683 - optionally (unrecommended) prefer perl functions over
684 their coro replacements.
685
6863.11 Tue Dec 5 13:11:24 CET 2006
687 - fixed some bogus assert's, but as perl.h disables assert even
688 without NDEBUG (thank you very much), not too many people should
689 notice (that did include myself). Andreas König noticed, though :)
690 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
691 it. Also noticed by Andreas König :)
692 - save/restore tainted status.
693 - verified to pass the testsuite on my 5.9.5.
694
6953.1 Mon Dec 4 23:03:40 CET 2006
696 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
697 - incompatible change: transfer flags are now per-state.
698 - give a better error message on deadlock.
699 - document Coro::nready.
700 - enhanced testsuite.
701
7023.01 Sun Dec 3 23:47:42 CET 2006
703 - forgot to include Coro::Timer.
704
7053.0 Sun Dec 3 22:57:25 CET 2006
706 - the "FINALLY COMPLETELY STABLE" release (coming soon:
707 the "FAMOUS LAST WORDS" release).
708 - implement a new stack sharing algorithm, which uses a stack
709 pool (size currently hardcoded).
710 - make stack sharing mandatory (it no longer uses a heuristic).
711 - eval/die no longer cause weird problems under heavy use.
712 - Coro::Event could cause livelocks if it was used but
713 no Coro::Event watchers were used.
714 - Coro::Event now uses asynccheck as prepare does not
715 check for changed watchers.
716 - Coro::Event allows multiple waiting coros and will wake up one
717 per event.
718 - Coro::Event should be cleaner and more efficient now.
719 - new utility function Coro::unblock_sub.
720 - document the sad fact that Event is no longer reentrant.
721 - putting a coroutine into the ready queue twice could under
722 some circumstances lead to stack corruption.
723 - minor incompatibility: subclassing Coro::State is supported
724 directly now without going through a _coro_state member.
725 - state/coro switching is much faster now.
726 - very minor optimisations and code/documentation cleanup.
727 - avoid problems due to compiler inlining.
728 - removed timers from Coro::Timer -> use AnyEvent instead.
729 - replaced Coro::idle coroutine by (cleaner) idle handler.
730 - updated to newest libcoro.
731 - implement enhanced support for valgrind.
732 - implement is_ready and return value for ready.
733 - removed Coro::Cont, it was a misnomer (it's generators),
734 and it was somewhat annoying to get it right. Will come back
735 if somebody asks for it :)
736 - many ->wait methods and Coro::Event could return
737 spuriously without the event having happened.
738
7392.5 Tue Nov 7 12:22:33 CET 2006
740 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
741 use AnyEvent, moved them to Coro/.
742 - added Coro::LWP which contains all the uglyness required to
743 make LWP non-blocking.
744 - should work with perl 5.9.x now (Andreas König made me do it).
745 - fixed another bug in Coro::Select when the timeout was undef.
746 - reuse PL_start_env for all coros, saves some memory per coroutine.
747 - manage PL_top_env differently, hopefully to avoid panic: top_env.
748 - timeout argument was not properly used in Coro::Socket.
749 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
750 - emulate undocumented(!) functionality of IO::Socket required
751 by LWP(!!).
752 - updated eg/lwp to work with newer lwp's.
753 - remove "FATAL: uncaught exception" prefix. Coroutines that die
754 kill the whole process, just as exceptions in the main "coroutine"
755 did already.
756
7572.1 Wed Nov 1 23:01:13 CET 2006
758 - fix a long-standing bug in Coro::Select where select with
759 zero timeout would instead change the current default filehandle.
760 - use a simpler and hopefully more robust way to clone padlists
761 (uses less memory and a perl function instead of our own).
762 - coro can now create a stack guard area on many architectures.
763 - Coro::AIO properly reexports additional functions from IO::AIO.
764 - updated libcoro with a workaround for OS X,
765 pach and testing by Michael Schwern.
766
7672.0 Tue Oct 24 05:47:17 CEST 2006
768 - support additional aio requests in Coro::AIO.
769
7701.9 (never properly released due to a glitch)
771
7721.8 Thu Feb 2 00:59:06 CET 2006
773 - applied suggested patch by SAMV to avoid problems during stupid
774 mark & sweep gc run.
775 - applied patch by Scott Walters for 5.9.3 compatibility.
776
7771.7 Tue Dec 27 01:41:58 CET 2005
778 - added Coro::AIO, a thin wrapper around IO::AIO.
779 - improved Makefile.PL explanations.
780
7811.6 Mon Dec 12 21:30:05 CET 2005
782 - additionally save PM_curpm might fix as-of-yet
783 unseen problems with regex matches being attributed to the
784 wrong package.
785 - add t/10_bugs.t, which currently checks against imho broken
786 perls that use 0.26MB of stack space per Perl_magic_get
787 invocation (newer linuxes) as opposed to the 0.0002MB perl
788 normally uses.
789 - make stacksize configurable for the ultimate debian experience.
790
7911.51 Mon Dec 12 18:48:36 CET 2005
792 - remove debugging warn() accidentally left in Coro::Select.
793
7941.5 Tue Nov 29 13:32:44 CET 2005
795 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
796 - fix Coro::Select 'select'.
797 - strict'ify some modules.
798 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
799 - use XSLoader in selected modules.
800 - remove some 5.6 compatibility cruft.
801
8021.4 Tue Sep 6 00:11:05 CEST 2005
803 - libcoro did not take into account the trampoline on amd64,
804 when 'l'inux method was used.
805
8061.31 Tue Aug 30 23:31:33 CEST 2005
807 - some portability fixes/workarounds.
2 808
31.3 Sat Aug 20 03:08:56 CEST 2005 8091.3 Sat Aug 20 03:08:56 CEST 2005
4 - no code changes. module seems to work fine. 810 - no code changes. module seems to work fine.
5 - improve Coro::State docs, remove reference to nonexisting 811 - improve Coro::State docs, remove reference to nonexisting
6 Coro::State::flush method. 812 Coro::State::flush method.
161.11 Thu Mar 3 18:00:52 CET 2005 8221.11 Thu Mar 3 18:00:52 CET 2005
17 - change of contact address. 823 - change of contact address.
18 824
191.1 Tue Feb 22 20:51:16 CET 2005 8251.1 Tue Feb 22 20:51:16 CET 2005
20 - support [l]inux method on amd64. 826 - support [l]inux method on amd64.
21 - make some context switches while compiling/eval'ing work. 827 - allow some context switches while compiling/eval'ing.
22 828
231.0 Tue Aug 10 03:47:27 CEST 2004 8291.0 Tue Aug 10 03:47:27 CEST 2004
24 - Event 0.89 fixes the bug again. 830 - Event 0.89 fixes the bug again.
25 - fix the remaining(??) memleak. I didn't free the cache-AV for 831 - fix the remaining(??) memleak. I didn't free the cache-AV for
26 padlists, so one AV per created anon-sub leaked. 832 padlists, so one AV per created anon-sub leaked.

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