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Comparing Coro/Changes (file contents):
Revision 1.78 by root, Tue May 6 02:39:55 2003 UTC vs.
Revision 1.355 by root, Tue May 27 06:41:42 2008 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
30.652 3TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO.
4TODO: maybe implement a default message channel, very much like Erlang's
5 actor model (which is cool in a lot of important aspects (failures!),
6 but very lacking in others (higher level ipc)).
7
8 - sprinkle "no warnings" freely over everything, also suppress
9 warnings for some other modules.
10 - fix typo in WSAEWOULDBLOCK.
11
124.72 Sun May 25 05:14:36 CEST 2008
13 - tweak META.yaml a bit, unfortunately, there is no documented way
14 to have optional dependencies with CPAN. doh :(
15 - avoid running some tests on windows because they would fail due to
16 perl bug (broken fork, broken pipes...).
17 - work around perl on windows bugs where perl returns undocumented
18 error codes for sysread, syswrite etc. by taking advantage
19 of AnyEvent's workaround for that problem.
20 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
21 a common perl implementation bug on windows.
22 - use unix domain sockets in testsuite to work around
23 common perl implementation bugs on widows (they are emulated by
24 tcp sockets on windows. ugh.)
25
264.71 Sat May 24 20:01:27 CEST 2008
27 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
28 - take advantage of async name resolution of AnyEvent::Util.
29 - work around brutal inet_aton override in Coro::LWP.
30 - take advantage of the readyhook in Coro::EV, for smoother
31 scheduling.
32
334.7 Sun May 11 00:32:19 CEST 2008
34 - completely reworked the Coro manpage.
35 - added Coro::AnyEvent, generic event loop integration.
36 - implement cancel, ready and kill commands in Coro::Debug.
37 - document find_coro in Coro::Debug.
38 - incompatible change: rename has_stack to has_cctx.
39 - Coro::AIO and Coro::BDB no longer force event model detection,
40 use AnyEvent::AIO and AnyEvent::BDB.
41
424.6 Sat Apr 26 10:05:14 CEST 2008
43 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
44 by the Coro module. It was a mistake to have it in the first place.
45 - (experimental) support for activestate perl 5.10 (method "w").
46 - (experimental) support for strawberry perl (method "a").
47 - coro_sigelem_set did not return a value although it had to,
48 actual impact unknown.
49
504.51 Mon Apr 14 13:28:27 CEST 2008
51 - make it compile again on 5.8.
52
534.50 Thu Apr 10 09:43:17 CEST 2008
54 - I did it twice! (see 4.49).
55
564.49 Sun Apr 6 21:23:31 CEST 2008
57 - grr, instead of compiling the recent changes on 5.10 only they
58 were compiled on 5.8 only.
59
604.48 Sun Apr 6 20:36:46 CEST 2008
61 - allow coroutine switches during eval's under 5.10.x, as it seems
62 the parser is a per-interpreter option now, so this is safe
63 (this might fix the odd crashing bug).
64 - drop support for 5.9.x versions: they are dead, jim.
65
664.47 Sun Apr 6 00:37:52 CEST 2008
67 - force cctx allocation on API calls: we know we need to force one
68 and gcc actually manages to confuse our heuristic nowadays,
69 leading to crashes and worse.
70 - document force_cctx.
71
724.46 Fri Apr 4 22:05:43 CEST 2008
73 - upgrade libcoro, resulting in pthread-backend (which was only created
74 to fulfill the rules of the programming languages shootout).
75
764.45 Thu Mar 13 11:55:36 CET 2008
77 - fix a file leaking bug in eg/mhyttpd that would allow
78 downloading of any file (reported by oesi).
79 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
80 (also add testcase).
81 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
82 apparently having loads of fun with that).
83 - implement $state->swap_defsv, ->swap_defav and document ->throw.
84
854.4 Wed Feb 13 16:44:29 CET 2008
86 - only assume .cfi pseudo isns exist on GNU/Linux.
87 - add get_timed method to Coro::Channels.
88 - fixed Coro::Debug manpage.
89 - perl 5.11 compatbility improvement based on patch by
90 Andreas König.
91
924.37 Sun Jan 20 11:25:23 CET 2008
93 - soften the check for an active parser for perl 5.10 (avoiding
94 "Coro::State::transfer called while parsing" in many cases).
95
964.36 Sun Jan 13 10:53:56 CET 2008
97 - reset diehook when terminating from an async_pool as to not
98 trigger any __DIE__ handlers.
99
1004.35 Sun Jan 13 04:14:13 CET 2008
101 - "bt" debug command now displays any exceptions
102 from longmess and also skips the innermost
103 stackframes, giving more useufl output.
104 - allow backtraces in coroutines blocked in Coro::EV,
105 at a <1% speed hit.
106 - handle localising of $SIG{__WARN__} and __DIE__
107 properly (with a proper amount of dirty hacking).
108
1094.34 Sat Dec 22 17:49:53 CET 2007
110 - upgrade to EV version 2.0 API.
111
1124.33 Mon Dec 17 08:36:12 CET 2007
113 - make Coro::AIO etc. loadable in the absence of EV.
114
1154.32 Mon Dec 17 07:46:02 CET 2007
116 - majorly improved Coro::Handle's performance with Coro::EV.
117 - implemented the until now mythical Coro::BDB module.
118 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
119
1204.31 Wed Dec 5 12:32:39 CET 2007
121 - remove warn statement form Coro::Util.
122
1234.3 Tue Dec 4 20:33:14 CET 2007
124 - calls to the idle function could cause stack corruption
125 when the stack changed.
126 - do no longer rely on the presence of EV::DNS if EV is used
127 (because it is gone), but instead take avdantage of EV::ADNS
128 if available.
129 - add ($) prototypes to all functions in Coro::Storable.
130 - use a conventional (safer) idle callback in Coro::EV.
131 - do accept quickly in Coro::Debug to avoid endless loops.
132
1334.22 Fri Nov 30 16:04:04 CET 2007
134 - really use optimised versions for Event and EV in Coro::Util
135 and Coro::Handle.
136
1374.21 Sun Nov 25 10:48:59 CET 2007
138 - fix a spurious memory read.
139 - Coro::EV no longer keeps the eventloop "alive".
140
1414.2 Fri Nov 9 20:47:05 CET 2007
142 - enable/disable tracing from a new coroutine, not a pooled one.
143 - fix a memleak in Coro::Event.
144 - removed killall call from fork_eval.
145 - made sure store_fd is already loaded so that fork_eval
146 does not have to parse autoload in each subprocess.
147 - only use assembly method if -O switch is in $Config{optimize}.
148 - add (optional) Coro::EV module, so far the best event loop module
149 directly supported by Coro.
150 - if the event model is EV, use EV::DNS to resolve
151 stuff in Coro::Util.
152 - don't get confused by multiple event notifications in Coro::Handle.
153 - initial support for EV (libevent interface).
154 - require Event and EV using configure_requires, to force their existance.
155
1564.13 Wed Oct 24 07:26:45 CEST 2007
157 - add Coro::Storable::blocking_thaw.
158 - use a vastly more complicated technique to localise
159 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
160 - use a coroutine for the idle callback Coro::Event,
161 instead of running Event in the current coroutine context.
162 This also catches recursive invocations.
163 - actually report fork errors in gethostbyname and inet_aton.
164
1654.11 Thu Oct 11 02:40:24 CEST 2007
166 - port to threaded perls.
167
1684.1 Thu Oct 11 02:38:16 CEST 2007
169 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
170 be local to each coro (see Coro::State).
171 - incompatible change: for very deep reasons, cede and cede_notself
172 cannot return anything, so nothing will be returned.
173 - possibly bring back 5.10 compatibility (untested).
174 - work around stupid (and wrong) warning on 5.10 :(.
175 - overlay the saved state over the context stack. This saves
176 a few hundred bytes per coroutine on average and also
177 speeds up context switching a bit.
178 - further tune default stack sizes.
179 - (more) correctly calculate stack usage in coro_rss.
180 - Coro::Storable::blocking_* did not properly lock
181 resulting in races between coroutines.
182 - added Coro::Storable::guard.
183 - stopping to trace a coroutine could destroy the cctx of
184 an unrelated coroutine.
185 - explain the relationship between Perl and C coroutines in
186 more detail in Coro::State.
187 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
188 causing a fork per resolve. This also affected Coro::Socket.
189 - switch to a separate stack in $coro->call/eval to avoid
190 invalidating pointers.
191
1924.03 Sat Oct 6 21:24:00 CEST 2007
193 - added Coro::throw method.
194 - minor code cleanups.
195
1964.02 Sat Oct 6 02:36:47 CEST 2007
197 - fix a very minor per-coroutine memleak (a single codereference).
198 - fixed a bug where the currently in-use c context would be freed
199 prematurely (can happen only when programs change the stacksize
200 or use tracing).
201 - tracing can no longer keep a coro alive after it terminated.
202 - do static branch prediction in the common path for gcc. gives
203 about 2-5% speed improvement here.
204
2054.01 Fri Oct 5 22:10:49 CEST 2007
206 - instead of recreating *a* standard output handle we simply
207 use STDOUT, which is faster and hopefully more robust.
208
2094.0 Fri Oct 5 12:56:00 CEST 2007
210 - incompatibly changed Coro::Storable::freeze.
211 - major new feature: added Coro::Debug, for interactive coroutine
212 debugging, tracing and much more.
213 - major bug fix: unbelievable, but true: $_, $/ and many other
214 "saved" variables actually weren't being saved. This has been fixed,
215 of course, while increasing performance while losing all the save
216 flags.
217 - save flags are gone, and all the api functions dealing with them.
218 - added Coro::Semaphore::adjust.
219 - added Coro::Util::fork_eval.
220 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
221 - added Coro::killall.
222 - reduce initial stack sizes to allow for "micro-coroutines".
223 - better async_pool resource management, moved parts of async_pool
224 handling to XS (major speed improvement).
225 - actually croak before modifying important data structures.
226 - refuse to transfer while compiling.
227 - possibly support eval EXPR better now.
228 - enable assembly per default on linux+bsd x86+amd64.
229 - all internal members were renamed _something for easier subclassing.
230 - many minor tweaks.
231
2323.63 Wed May 16 14:10:06 CEST 2007
233 - implement handcoded assembly for x86/amd64 SVR ABI.
234
2353.62 Fri Apr 27 21:36:06 CEST 2007
236 - upgrade libcoro (which might set unwind info correctly).
237 - change default on linux to setjmp/longjmp.
238
2393.61 Thu Apr 19 12:36:18 CEST 2007
240 - Coro::Storable caused an endless loop when thawing invalid
241 pst's sometimes.
242 - use a Semaphore in Coro::Storable, as Storable doesn't
243 seem to be reentrant (although it is documented to
244 be threadsafe...).
245 - fix Coro::Signal to bring back the original unreliable
246 but stateful semantics.
247 - fixed a lot of typos in Coro.pm (patch submitted by David
248 Steinbrunner, which applied flawlessly).
249
2503.6 Sat Apr 14 17:13:31 CEST 2007
251 - added some bugfixes to get eg/myhttpd working again.
252 - added Coro::Storable for often-cede'ing freeze/thaw.
253 - try to do a clean exit when a coroutine calls exit
254 (EXPERIMENTAL).
255 - got rid of indirect call through _coro_init.
256 - updated the partly antique examples in eg/ to
257 work again and be a bit less magic, too.
258 - fixed Coro::Signal semantics to work as documented again.
259
2603.55 Sun Mar 25 01:20:47 CET 2007
261 - add SAVE_DEFFH to save the default filehandle and enable
262 it by default.
263 - finally move socket-operations from Coro::Socket to Coro::Handle
264 to be able to unblock foreign sockets.
265 - add Coro::State::save_also and guarded_save.
266 - add count accessor to Coro::Semaphore.
267 - add Coro::State::cctx_stacksize.
268 - just for the fun of it, do not rely on implicit context,
269 which can dramatically improve performance, but people
270 using windows-process-emulation perls do not care much about
271 performance.
272
2733.51 Sun Mar 4 14:18:04 CET 2007
274 - fixed a problem when you weakened references to Coro::State's
275 (patch by Yuval Kogman).
276
2773.501 Wed Feb 28 12:44:07 CET 2007
278 - rename some global symbols as macosx from hell redefines
279 them without asking.
280
2813.5 Tue Feb 13 20:22:53 CET 2007
282 - do AnyEvent model detection earlier, avoiding problems
283 caused by first using AnyEvent and later Coro::Event.
284 - implement and document Coro::Event event objects.
285 - fix a potential problem in Coro::Event causing crashes.
286 - initialise PL_comppad when creating a new coroutine,
287 avoids crashes on early coro destruction.
288
2893.41 Mon Jan 22 19:19:49 CET 2007
290 - readline on Coro::Handle did not support undefined $/,
291 nor did it deliver partial lines on EOF or error.
292 - implement malloc fallback for stack allocation because
293 stupid broken idiotic OSX has a stupid broken
294 idiotic fits-the-whole-os mmap "implementation" and
295 my dick feels longer if Coro is portable even to
296 obsolete platforms.
297
2983.4 Fri Jan 19 21:52:54 CET 2007
299 - remove t/09_timer.t, as it isn't really testing much
300 but was rather flaky in practise.
301 - async_pool coro would keep arguments and callback alive until
302 it was reused.
303 - cancellation of a coroutine could cause spurious idle calls
304 in cede_notself.
305
3063.3 Sat Jan 6 03:45:00 CET 2007
307 - implement $coro->on_destroy.
308 - Coro::Event blocking semantics have been changed,
309 documented and - hopefully - improved.
310 - fix nice adding, not subtracting, from priority.
311 - fix ->prio and api_is_ready (patch by Mark Hinds).
312 - fixed an assert ("... == prev__cctx->idle_te")
313 that could errronously trigger.
314 - fix various large and small memleaks.
315 - use a (hopefully) more stable cancel implementation
316 that immediately frees the coroutine data.
317 - cede/cede_notself return a status now.
318 - added Coro::guard function.
319 - added a global coroutine pool for jobs (on my machine,
320 I can create and execute 48k simple coros/s with async,
321 and 128k coros with async_pool).
322 - Coro::AIO now uses the coroutine priority as io priority.
323
3243.2 Fri Dec 22 05:07:09 CET 2006
325 - improve portability to slightly older perls.
326 - use cleaner coroutine destruction.
327 - simplify configuration for users.
328 - optionally (unrecommended) prefer perl functions over
329 their coro replacements.
330
3313.11 Tue Dec 5 13:11:24 CET 2006
332 - fixed some bogus assert's, but as perl.h disables assert even
333 without NDEBUG (thank you very much), not too many people should
334 notice (that did include myself). Andreas König noticed, though :)
335 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
336 it. Also noticed by Andreas König :)
337 - save/restore tainted status.
338 - verified to pass the testsuite on my 5.9.5.
339
3403.1 Mon Dec 4 23:03:40 CET 2006
341 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
342 - incompatible change: transfer flags are now per-state.
343 - give a better error message on deadlock.
344 - document Coro::nready.
345 - enhanced testsuite.
346
3473.01 Sun Dec 3 23:47:42 CET 2006
348 - forgot to include Coro::Timer.
349
3503.0 Sun Dec 3 22:57:25 CET 2006
351 - the "FINALLY COMPLETELY STABLE" release (coming soon:
352 the "FAMOUS LAST WORDS" release).
353 - implement a new stack sharing algorithm, which uses a stack
354 pool (size currently hardcoded).
355 - make stack sharing mandatory (it no longer uses a heuristic).
356 - eval/die no longer cause weird problems under heavy use.
357 - Coro::Event could cause livelocks if it was used but
358 no Coro::Event watchers were used.
359 - Coro::Event now uses asynccheck as prepare does not
360 check for changed watchers.
361 - Coro::Event allows multiple waiting coros and will wake up one
362 per event.
363 - Coro::Event should be cleaner and more efficient now.
364 - new utility function Coro::unblock_sub.
365 - document the sad fact that Event is no longer reentrant.
366 - putting a coroutine into the ready queue twice could under
367 some circumstances lead to stack corruption.
368 - minor incompatibility: subclassing Coro::State is supported
369 directly now without going through a _coro_state member.
370 - state/coro switching is much faster now.
371 - very minor optimisations and code/documentation cleanup.
372 - avoid problems due to compiler inlining.
373 - removed timers from Coro::Timer -> use AnyEvent instead.
374 - replaced Coro::idle coroutine by (cleaner) idle handler.
375 - updated to newest libcoro.
376 - implement enhanced support for valgrind.
377 - implement is_ready and return value for ready.
378 - removed Coro::Cont, it was a misnomer (it's generators),
379 and it was somewhat annoying to get it right. Will come back
380 if somebody asks for it :)
381 - many ->wait methods and Coro::Event could return
382 spuriously without the event having happened.
383
3842.5 Tue Nov 7 12:22:33 CET 2006
385 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
386 use AnyEvent, moved them to Coro/.
387 - added Coro::LWP which contains all the uglyness required to
388 make LWP non-blocking.
389 - should work with perl 5.9.x now (Andreas König made me do it).
390 - fixed another bug in Coro::Select when the timeout was undef.
391 - reuse PL_start_env for all coros, saves some memory per coroutine.
392 - manage PL_top_env differently, hopefully to avoid panic: top_env.
393 - timeout argument was not properly used in Coro::Socket.
394 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
395 - emulate undocumented(!) functionality of IO::Socket required
396 by LWP(!!).
397 - updated eg/lwp to work with newer lwp's.
398 - remove "FATAL: uncaught exception" prefix. Coroutines that die
399 kill the whole process, just as exceptions in the main "coroutine"
400 did already.
401
4022.1 Wed Nov 1 23:01:13 CET 2006
403 - fix a long-standing bug in Coro::Select where select with
404 zero timeout would instead change the current default filehandle.
405 - use a simpler and hopefully more robust way to clone padlists
406 (uses less memory and a perl function instead of our own).
407 - coro can now create a stack guard area on many architectures.
408 - Coro::AIO properly reexports additional functions from IO::AIO.
409 - updated libcoro with a workaround for OS X,
410 pach and testing by Michael Schwern.
411
4122.0 Tue Oct 24 05:47:17 CEST 2006
413 - support additional aio requests in Coro::AIO.
414
4151.9 (never properly released due to a glitch)
416
4171.8 Thu Feb 2 00:59:06 CET 2006
418 - applied suggested patch by SAMV to avoid problems during stupid
419 mark & sweep gc run.
420 - applied patch by Scott Walters for 5.9.3 compatibility.
421
4221.7 Tue Dec 27 01:41:58 CET 2005
423 - added Coro::AIO, a thin wrapper around IO::AIO.
424 - improved Makefile.PL explanations.
425
4261.6 Mon Dec 12 21:30:05 CET 2005
427 - additionally save PM_curpm might fix as-of-yet
428 unseen problems with regex matches being attributed to the
429 wrong package.
430 - add t/10_bugs.t, which currently checks against imho broken
431 perls that use 0.26MB of stack space per Perl_magic_get
432 invocation (newer linuxes) as opposed to the 0.0002MB perl
433 normally uses.
434 - make stacksize configurable for the ultimate debian experience.
435
4361.51 Mon Dec 12 18:48:36 CET 2005
437 - remove debugging warn() accidentally left in Coro::Select.
438
4391.5 Tue Nov 29 13:32:44 CET 2005
440 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
441 - fix Coro::Select 'select'.
442 - strict'ify some modules.
443 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
444 - use XSLoader in selected modules.
445 - remove some 5.6 compatibility cruft.
446
4471.4 Tue Sep 6 00:11:05 CEST 2005
448 - libcoro did not take into account the trampoline on amd64,
449 when 'l'inux method was used.
450
4511.31 Tue Aug 30 23:31:33 CEST 2005
452 - some portability fixes/workarounds.
453
4541.3 Sat Aug 20 03:08:56 CEST 2005
455 - no code changes. module seems to work fine.
456 - improve Coro::State docs, remove reference to nonexisting
457 Coro::State::flush method.
458 - no longer autodetect windows, present it as an option instead.
459
4601.2 Mon May 16 02:00:55 CEST 2005
461 - included libcoro.c earlier in State.xs, might improve portability.
462 - use a faster and possibly more stable Coro::Cont implementation.
463 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
464 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
465 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
466
4671.11 Thu Mar 3 18:00:52 CET 2005
468 - change of contact address.
469
4701.1 Tue Feb 22 20:51:16 CET 2005
471 - support [l]inux method on amd64.
472 - allow some context switches while compiling/eval'ing.
473
4741.0 Tue Aug 10 03:47:27 CEST 2004
475 - Event 0.89 fixes the bug again.
476 - fix the remaining(??) memleak. I didn't free the cache-AV for
477 padlists, so one AV per created anon-sub leaked.
478
4790.97 Fri May 14 15:23:32 CEST 2004
480 - remove stupid gcc extension that was an experiment only anyway.
481
4820.96 Thu May 13 18:09:29 CEST 2004
483 - tell people if they have yet another broken Event variant.
484 - made Coro to work _better_ with threads (it seems that, as long
485 as you use Coros in one thread only everything will work fine.
486 Looking at the perl source the problem might be missing locking
487 between Coro and some perl internal routines. That's not easily
488 fixable).
489 - (hopefully) got rid of the static xnext inside transfer.
490
4910.95 Sun Feb 15 03:20:28 CET 2004
492 - removed Coro::State::flush, implemented a new and much
493 faster caching mechanism by attaching magic to the CV.
494 - a memleak with (real) closures remains.
495 - dramatically reduced size of stacks to 65536 (linux/x86), after
496 observing that even myhttpd never had more than a kilobyte
497 of stack in use (stack is still only physically allocated in
498 pagesize increments for systems suporting mmap).
499 - fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
500 - fix for threaded perl.
501
5020.9 Sun Nov 23 04:32:39 CET 2003
503 - fix a few very hard to track down but (of course) stupid
504 memory leaks.
505 - stringify version number to avoid locale problems :(.
506 - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
507 hopefully ignoring it "just works".
508
5090.8 Wed Nov 5 19:38:40 CET 2003
510 - port to perl5.005_03, but only 5.8.x+ is supported!
511 - honor LocalAddr even without LocalPort in Coro::Socket.
512
5130.7 Tue May 27 03:12:38 CEST 2003
514 - the version jump indicates some level of testing, not gobs
515 of new features.
516 - uh... I found the prompt function in ExtUtils::MakeMaker.
517 Highly correct stuff, that is...
518 - fixed(?) a bug with die's in coroutines causing "panic: top_env".
519 the fix is not well understood by the author, so beware :(.
520
5210.652 Thu May 8 02:54:46 CEST 2003
4 - Applied patch by Slaven Rezic to set default to "s" on FreeBSD, 522 - Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
5 cause version 4 doesn't have ucontext. 523 cause version 4 doesn't have ucontext.
6 - Benjamin Reed reported that setjmp works fine on darwin, 524 - Benjamin Reed reported that setjmp works fine on darwin,
7 so preselect it. 525 so preselect it.
8 526

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