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Comparing Coro/Changes (file contents):
Revision 1.405 by root, Wed Nov 12 23:24:40 2008 UTC vs.
Revision 1.663 by root, Sat Oct 29 19:12:45 2016 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: should explore PerlIO::coroaio (perl leaks like hell). 3TODO: should explore PerlIO::coroaio (perl leaks like hell).
4TODO: maybe implement a default message channel, very much like Erlang's 4TODO: channel->maxsize(newsize)?
5 actor model (which is cool in a lot of important aspects (failures!), 5TODO: __GCC_HAVE_DWARF2_CFI_ASM
6 but very lacking in others (higher level ipc)). 6TODO: swap_sv, maybe add scope_swap_sv?
7TODO: croak when async_pool tries to run canceled thread?
7 8
9 - re-try JIT allocation without PROT_EXEC, to hopefully improve
10 portability.
11
126.511 Sun Jun 26 23:44:50 CEST 2016
13 - make it compile with threaded perls again.
14 - simplify and speed up __DIE__ and __WARN__ handling.
15
166.51 Sat Jun 25 20:57:20 CEST 2016
17 - 6.5 release didn't compile on most older perls due to
18 a logic error enabling experimental 5.24 code for all versions.
19 - since various broken or deficient patches float around
20 to work around the vtbl API breakage in perl, let's provide
21 our own workaround, which seems to be much less invasive
22 and more compatible than the approaches seen so far. YMMV.
23 - work around assertion failure in perl_destruct on 5.24
24 (analyzed by Dave Mitchell).
25
266.5 Wed Jun 22 22:23:50 CEST 2016
27 - swap_sv swapping order was not symmetrical, causing
28 wrong swaps when swap_sv was used multiple times on the
29 same sv in the same thread.
30 - swap_sv calls can now be undone by calling it again
31 with the same variables.
32 - swap_sv calls will now be undone in async_pool threads.
33 - split Coro::Semaphore::up/adjust into separate xs functions
34 for better error reporting, at slight codesize increase.
35 - (libcoro) arm assembly support, please test and report.
36 - adjust to PL_savestack changes in perl 5.24 (adapted from
37 the debian patch, which unfortunately gets it wrong).
38
396.49 Sat Oct 17 01:40:12 CEST 2015
40 - throwing an exception to a thread waiting in
41 Coro::Handle using Coro::EV did not stop the watchers,
42 causing the next call to fail (testcase by Martin Pritchard).
43 - bump minimum perl version to 5.10.
44
456.48 Sun Oct 4 19:03:51 CEST 2015
46 - fix memory leak when Coro::Handle uses Coro::EV internally
47 (testcase by Sten Sten).
48 - update code to libev 4 API (internally, Coro still used the
49 version 3 API calls).
50 - remove unused hv_sig.
51
526.47 Sat Jul 11 03:58:20 CEST 2015
53 - swap_svs - NVs can be in the SV head beginning with 5.20.
54
556.46 Tue Jun 30 14:36:30 CEST 2015
56 - restore portability to perls with windows fork emulation
57 (patch by Petr Písař).
58
596.45 Tue Jun 30 01:40:08 CEST 2015
60 - restore portability to perl 5.16 and below.
61
626.44 Tue Jun 30 00:41:54 CEST 2015
63 - avoid segfaulting (or worse) when tracing a canceled thread.
64 - the Event module silently broke it's public hook API, causing
65 failures on perls compiled with -Duselongdouble. Requiring
66 the latest version of Event because I don't know which release
67 changed this (it's not mentioned in the ChangeLog).
68 - allow xs level enterleave hooks via CoroAPI.
69
706.43 Thu Jun 4 15:38:14 CEST 2015
71 - use stability canary.
72 - port to stableperl-5.22.0-1.001.
73 - update libecb.
74
756.42 Wed Feb 11 20:29:52 CET 2015
76 - Coro::SemaphoreSet->try did not actually work (analyzed by
77 SATO Kentaro).
78 - upgrade libecb to be C11 compliant.
79
806.41 Sat Sep 6 22:08:46 CEST 2014
81 - restore portability to perl 5.8.x.
82 - give new Coro's a valid GvHV(PL_hintgv) - this is slow and takes
83 up some memory, but fixes "use feature" and similar modules
84 when used inside a Coro.
85 - allow zero as argument to Coro::Channel to mean the same thing
86 as no argument. this works with older versions as well,
87 but wasn't legal until now.
88 - slightly better c header file detection.
89
906.39 Mon Jun 2 00:00:08 CEST 2014
91 - work around more incompatible changes in 5.20.
92
936.38 Sun Jun 1 21:54:23 CEST 2014
94 - check that perl slots actually have enough space to hold
95 interpreter variables.
96 - untested port to perl 5.19 (64 bit tmps indices) (reported
97 by Andreas König).
98 - croak when cancel is called without a thread context.
99
1006.37 Tue Mar 4 13:27:33 CET 2014
101 - *sigh*, removed leftover debugging code from debugging a
102 perl bug, of all things.
103
1046.36 Tue Mar 4 07:11:59 CET 2014
105 - semaphores would not clear the destroy hook when interrupted
106 by ->throw, causing segfaults or worse.
107 - ->throw on a thread waiting for a semaphore did not acquire
108 the semaphore, but also didn't wake up other waiters,
109 possibly causing a deadlock.
110 - "FATAL: $Coro::IDLE blocked itself" will now use Carp::confess
111 to report a full stacktrace, which should help find out
112 where the actual call is.
113 - "atomically" destroy data in slf_destroy, because it is
114 the right thing to do, just in case.
115 - disable ecb.h libm dependency, to compile on ancient systems
116 or under adverse conditions.
117
1186.33 Mon Nov 18 11:26:27 CET 2013
119 - do not crash when freeing padlists with holes (in 5.18).
120 - tentative SVt_BIND 5.19 port/fix.
121
1226.32 Tue Nov 5 15:35:35 CET 2013
123 - use a new algorithm to derive padlists for perl 5.18. The old
124 one could lead to 0-pointer accesses inside perl (reported
125 by Darin McBride).
126
1276.31 Thu May 9 07:39:48 CEST 2013
128 - Coro::AIO requests would crash if the thread was ready'd
129 while the request was ongoing.
130
1316.29 Wed May 8 02:55:18 CEST 2013
132 - when an on_destroy handler destructs the coro currently being
133 destructed a perl scalar could be accessed after being freed,
134 likely causing a crash.
135
1366.28 Wed Mar 6 06:58:02 CET 2013
137 - clean remnants of existing __DIE__ and __WARN__ handlers so
138 they lose their magic and will not cause segfaults later
139 (testcase by Andrey Sagulin).
140 - improved Coro::State documentation a bit.
141 - Coro::Debug::command now flushes the output.
142 - add hack detection code for x32 abi, because the braindead slugs
143 who designed that made it look exactly like x86_64 without
144 providing proper compile time symbols to test for it. as a result,
145 this detection cannot work reliably.
146 - valgrind stack registering was broken.
147 - do not rely on Time::HiRes anymore in Coro::Debug.
148
1496.23 Fri Dec 7 23:36:37 CET 2012
150 - use experimental fiber implementation on native windows
151 perls.
152 - use sizeof (void *) as multiplication factor for stack sizes,
153 to accomodate the totally braindamaged microsoft 64 bit "os".
154 - changed verifier host from win2k-ap510-32 to win7-sp516-32/64.
155 activeperl 5.16 crashes when PerlIO_define_layer is called due
156 to some bug in the perl dll, strawberry perl at least passes
157 the testsuite.
158 - implement Coro::Handle->peeraddr/host/port, for slightly
159 improved compatibility with LWP.
160 - implement 5.17 compatibility by almost blindly applying a
161 good-looking patch by Father Chrysostomos.
162 - move stack management functions into libcoro 3.
163 - libcoro version 3 "released".
164 - support magic values as timed_io_once args.
165 - recommend AnyEvent 7+ or EV 4+, also require EV
166 version 4 or newer for Coro::EV.
167
1686.10 Tue Oct 9 01:14:27 CEST 2012
169 - updated ecb.h, it had a typo that caused it to not compile on many
170 big endian systems (reported by many people).
171 - disable memory fences in ecb.h to improve portability.
172
1736.09 Sat Oct 6 23:25:02 CEST 2012
174 - Coro::EV I/O watchers were not interruptible by exceptions
175 (Coro::State::throw) (testcase by sten).
176 - ->throw now puts threads into the ready queue, as this seems to
177 be expected by existing code, and code that doesn't cope with spurious
178 wakeups needs fixing anyway.
179 - use fd -1 in mmap.
180 - cast I32 to int in error message printf.
181 - warn about broken so-called "hardened" kernels.
182
1836.08 Fri Apr 13 12:05:47 CEST 2012
184 - be more aggressive about exiting like perl does - formerly,
185 exiting from the non-main thread would not execute END blocks.
186
1876.07 Fri Nov 11 21:21:48 CET 2011
188 - work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV).
189 - update ecb.h.
190
1916.06 Mon Aug 8 23:59:48 CEST 2011
192 - cygwin unfortunately patches the stack at runtime, so we use the pthreads
193 backend, which is an order of magnitude slower. unfortunately, cygwins
194 pthread implementation isn't very complete either, so allocate the stack
195 twice just to be sure.
196 (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS,
197 in its ithreaded perl - best recompile cygwin and use the 'w'indows
198 backend for much better performance. also disable ithreads for
199 even better performance...).
200
2016.05 Thu Aug 4 21:36:36 CEST 2011
202 - blush, condvar values would not be propagated from send to recv anymore
203 (reported by Chip Salzenberg).
204 - use exponential increase for the readline buffer length in
205 Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes.
206
2076.04 Wed Aug 3 17:15:45 CEST 2011
208 - use even more efficient and more compatible condvars for
209 compatibility to AnyEvent 6.x :)
210 - more inconsequential ecb.h updates.
211
2126.03 Wed Aug 3 11:41:30 CEST 2011
213 - change how Coro patches AnyEvent condvars for compatibility to
214 AnyEvent 6.x.
215 - update ecb.h, to no longer include <pthread.h> in case WinNT.h
216 hasn't been included.
217
2186.02 Wed Jul 13 04:35:19 CEST 2011
219 - "improve portability to Gentoo" - gentoo manages to put perl variables
220 in memory areas that are farther than 2gb apart, which the jit couldn't
221 handle and barfed. now it's just a bit slower on gentoo and similar
222 systems.
223
2246.01 Sun Jul 3 12:31:14 CEST 2011
225 - workarounds are good, but the test for whether pthreads are used
226 was not good. this one should be better.
227 - check differently whether gcc generates cfi instructions itself.
228
2296.0 Wed Jun 29 19:43:35 CEST 2011
230 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
231 destroyed and cleaned up automatically (e.g. async { schedule }).
232 - implement a JIT compiler for part of the thread switch code,
233 which gives a 50% speed improvement on threaded perls, and
234 about 4% on non-threaded perls (so threaded perls now finally
235 reach about half the speed of non-threaded perls).
236 - slightly modernise Coro::Intro, add section about rouse functions.
237 - avoid DEFSV and ERRSV, giving another 10% improvement
238 in thread switching.
239 - Coro::State->is_destroyed is now called is_zombie.
240 - implement a Coro->safe_cancel method that might fail, but
241 cancels in a "safer" way if it succeeds.
242 - add preliminary support for DEBUGGING perls.
243 - get rid of two hash-accesses when initialising a new Coro - this
244 speeds up coro creation by almost a factor of two.
245 - croak when a coro that is being cancelled tries to block
246 (e.g. while executing a guard block), instead of crashing or
247 deadlocking.
248 - use a more robust and also faster method to identify Coro::State
249 objects - speeds up everything a bit.
250 - implement Coro->cancel in XS for a 20% speed improvement, and to
251 be able to implement mutual cancellation.
252 - speed up context switches by a percent or two by more efficiently
253 allocating context stack entries.
254 - implement Coro->join and Coro->on_destroy in XS for a speedup and
255 a reduction in memory use.
256 - cancelling a coro while it itself is cancelling another coro is
257 now supported and working, instead of triggering an assertion.
258 - be a bit more crash-resistant when calling (buggy) on_destroy
259 callbacks (best effort).
260 - move on_destroy into the slf_frame, to allow extension slf
261 functions to have destructors.
262 - get rid if coro refcounting - simply crash in other interpreter
263 threads by nulling the pointers on clone.
264 - simplify warn/die hook handling when loading Coro - the convoluted
265 logic seems to be no longer neccessary.
266 - use libecb instead of our own home-grown gcc hacks.
267 - document alternatives to Coro::LWP. Please use them :)
268 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
269 sigaltstack. Really. wine suffers from it, erlang suffers from it,
270 and it's known since at least 2006.
271
2725.372 Wed Feb 23 06:14:30 CET 2011
273 - apparently mingw doesn't provide a working gettimeofday, try to
274 work around that by relying on Time::HiRes (indirectly brought to
275 my attention by Max Maischein).
276 - fix some portability issues when Time::HiRes was used.
277
2785.371 Mon Feb 21 14:36:08 CET 2011
279 - backport to windows process emulation code again.
280
2815.37 Sat Feb 19 07:49:44 CET 2011
282 - add a big "Coro thread life cycle" section to "man Coro".
283 - try a tentative workaround against the breakage that 5.13 has
284 introduced without depreciation period. sigh.
285 - no longer use Time::HiRes if gettimeofday is available, which
286 saves quite a lot of memory.
287
2885.36 Sun Feb 13 05:33:41 CET 2011
289 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
290 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
291 method call.
292 - undocument Coro::Timer::sleep and obsolete whole module.
293 - optimise Coro::Timer::timeout memory and cpu usage.
294 - slightly updated Coro::Intro for recent changes.
295 - do not initialise PL_dirty anymore.
296
2975.25 Thu Nov 11 01:08:39 CET 2010
298 - try a different approach on netbsd - netbsd 5 finally has marginally
299 working pthreads, but still broken ucontext/sigaltstack.
300 - openbsd 4.8 finally got their act together, Coro works out of the box
301 with asm, setjmp and pthreads (no change, just informational).
302
3035.24 Sat Oct 23 11:27:12 CEST 2010
304 - port to the EV 4.0 API.
305 - work around bugs in mingw32, making strawberry perl work
306 out of the box.
307 - correctly modify Coro::AIO function prototypes
308 so that they reflect the "no optional parameters" rule.
309 - "ported" libcoro to C++.
310
3115.23 Mon May 17 18:50:42 CEST 2010
312 - be more resistant to ordering changes when initialising
313 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
314 Waldorf).
315 - document that perl 5.12 deliberately removed support for cloning.
316
3175.22 Wed Apr 14 03:55:35 CEST 2010
318 - correctly return udnef on errors in Coro::Handle::read/write
319 (testcase by Marc Mims).
320 - convert Coro::Util into a "perl compatibility wrapper" - the functions
321 are less useful now, but are drop-in replacements for existing
322 functions, listing better alternatives in the documentation. This also
323 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
324 with Coro::Util::inet_aton.
325 - do not override $Coro::idle unconditionally in Coro.pm, as other
326 modules could have provided their own idle coro already
327 (for exmaple, Coro::AnyEvent).
328 - fix Coro::Util::gethost* functions.
329 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
330
3315.21 Wed Dec 16 07:19:51 CET 2009
332 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
333 together.
334 - add some examples on how to combine other event loops with Coro in
335 Coro::AnyEvent, and how to run it (and not to block). Seems to be
336 the most common source of confusion.
337 - try to catch people naively blocking in an event callback.
338 - work around the perl filehandle bug issue in conjunction with
339 older common::sense (as indirectly pointed out by ZSystem).
340 - clarify the "not from signal handlers" section.
341
3425.2 Sun Oct 4 14:54:24 CEST 2009
343 - Coro::Storable destroyed the prototypes of the functions it wrapped.
344 - export rouse_cb and rouse_wait by default now.
345 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
346 - new method $state->swap_sv.
347 - added section on "windows process emulation" to the manpage,
348 after a not-so-fruitful (nor-friendly) "discussion" with chip
349 salzenberg (discussion implies arguments, but his only arguments
350 were ad-hominems, one wonders why he started it in the first
351 place). I hope this explains it well enough for him to understand,
352 and maybe well enough for others to understand.
353 - use common::sense everywhere now.
354 - idle callbacks are no longer supported, use idle coros instead.
355 - print a thread listing when a deadlock is detected.
356
3575.17 Sat Aug 22 23:09:31 CEST 2009
358 - work around a bug in the perl debugger causing crashes
359 when running under the debugger by marking _pool_handler as nodebug.
360 - speed up Coro::async considerably.
361 - try some hacks to get netbsd to work "more often" - their broken
362 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
363 - convert Coro to AE 5.0 API.
364
3655.162 Tue Jul 28 04:04:03 CEST 2009
366 - perl 5.8.2 is now minimum requirement.
367 - skip t/19_handle.t on broken windows perls.
368
3695.161 Wed Jul 22 04:47:38 CEST 2009
370 - Coro::AnyEvent::poll could have a different prototype when EV was
371 used as backend (analyzed by Tatsuhiko Miyagawa).
372 - Coro::AnyEvent errornously initialised the event loop when loaded,
373 not on demand.
374 - try to workaround rare */t/01_unblock.t failures.
375
3765.16 Tue Jul 21 01:44:37 CEST 2009
377 - Coro::AnyEvent failed to hook into the event loop
378 when no threads had been readied between detecting
379 the event loop and actually running it.
380 - considerably speed up Coro::Select by taking avdantage
381 of AnyEvent > 4.8 and some other optimisations.
382 - implement paragraph readline mode in Coro::Handle
383 (based on patches by Zsbán Ambrus).
384 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
385 and analyzed by Yasuhiro MATSUMOTO).
386 - clarified libcoro license and copyright.
387 - someone stole my EXTRA_META!!!
388 - implement Coro::Select::patch_pp_sselect and it's brother,
389 for hardcode select overriding.
390
3915.151 Mon Jul 6 05:41:57 CEST 2009
392 - backport to windows process emulation code again (patch by
393 Yasuhiro MATSUMOTO).
394 - slightly update Coro::MakeMaker.
395
3965.15 Tue Jun 30 10:28:06 CEST 2009
397 - deprecate Coro::Socket, document how to get ipv6 support via
398 AnyEvent::Socket instead.
399 - implement signal->wait ($cb) interface, similar to semaphores.
400 - work around SvOK not supporting getmagic, so we have to getmagic
401 to test for undef :/ (reported by Matthias Waldorf).
402 - load Coro::AnyEvent in all modules using AnyEvent.
403 - work around perl corrupting our internal data structures,
404 reported by Tokuhiro Matsuno.
405 - enable per-coroutine real and cpu time gathering
406 (Coro::State::enable_times).
407
4085.14 Wed Jun 24 01:37:48 CEST 2009
409 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
410 as this seems to have been a difficult concept (poll, sleep, idle,
411 idle_upto).
412 - add Coro::AnyEvent::readable/writable functions.
413 - clarify Coro::EV/Event/AnyEvent manpages.
414 - free per-thread global scalars in the thread calling ->cancel, to
415 avoid crashes when $_, $@ etc., are magical but some of those
416 had already been freed.
417 - "unexperimentalise" the callback interface for Coro::Semaphore.
418 - speed up ready queue management/context switching by using a linked
419 list instead of an array (~5-10%).
420 - implement "watch" command in Coro::Debug shells.
421 - for fun, implement time-slicing as an example in the manpage.
422 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
423 Coro::Event, use the normal AnyEvent handling instead of dieing
424 (the same is true for Coro::Handle).
425 - properly document Coro::EV::timed_io_once.
426 - avoid unneccessary ->cancel calls in Coro::Handle.
427 - maybe make it work on mingw32 with win32 backend
428 (based on patch by Yasuhiro Matsumoto).
429
4305.132 Fri May 29 09:00:39 CEST 2009
431 - do not keep a reference to the argument itself in
432 Coro::Semaphore::guard, as it could change later.
433 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
434 should support a prepare callback.
435
4365.131 Mon Mar 16 23:20:37 CET 2009
437 - implement and document Coro->suspend, Coro->resume.
438 - fix Coro::Select implementation to not (often) close
439 the passed file descriptors (testcase provided by pippijn).
440
4415.13 Mon Dec 15 21:51:42 CET 2008
442 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
443 - don't set diehook to C<undef> but instead to NULL, to avoid
444 spurious warnings.
445 - fix a lot of bugs in Coro::SemaphoreSet.
446 - Coro::SemaphoreSet will less often create a semaphore needlessly.
447 - add Coro::SemaphoreSet::count and wait methods.
448 - take advantage of the new Guard module.
449 - deprecate Coro::guard.
450 - try to fix the dreaded 01_unblock tests once more. I hate it when
451 testsuites need more fixing than the code they are supposed to test.
452 - croak in more cases when a required callback isn't resolvable.
453 - fix some minor issues in Coro::State->call/eval.
454 - use current coroutine context instead of a temporary one
455 when temporarily switching to another coroutine.
456 - do not call C-level on_destroy handlers during global destruction,
457 to avoid needless segfaults.
458
4595.12 Sun Dec 7 13:30:38 CET 2008
460 - add default config for MirOS, which seems to be a bug-to-bug
461 compatible fork of openbsd ("world domination by releasing
462 openbsd cvs before the openbsd folks do it" or so :).
463 - free_padlist did destroy the names pad, not good, but didn't
464 seem to bother perl - this could fix issues such as eval ""
465 inside a function called from multiple coroutines.
466 - use a different method to detect destruction time.
467 - be more careful when freeing padlists just before global
468 destruction.
469 - fixed and expanded the call/cc example.
470 - renamed _terminate to _coro_run.
471 - new method Coro::Channel->shutdown.
472 - try pthreads on openbsd <4.4 (broken sigaltstack, will
473 pthreads fare better?).
474 - be less picky about destroying "a" running coroutine.
475
4765.11 Tue Nov 25 21:49:05 CET 2008
477 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
478 working code with failed assertions, introducing more bugs than
479 it fixes, requiring elaborate workarounds :(
480
4815.1 Mon Nov 24 08:54:59 CET 2008
482 - wrote a small introductory tutorial - Coro::Intro.
483 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
484 - Coro::Select did errornously dup the file descriptors
485 and didn't work with all AnyEvent backends.
486 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
487 LWP data transfers.
488 - disassociate c contexts from coro objects - this is agruably more
489 correct, but mostly allows sharing of cctxs between coro and state
490 objects, for added memory savings and speed increases.
491 - bumped $Coro::POOL_RSS up to 32kb by default.
492 - no longer set the optype to OP_CUSTOM, as B::* understandably
493 doesn't like this very much (and we *are* a type of entersub).
494 - implement state cloning, just to prove that call/cc can be done.
495 - automatically load Coro::AnyEvent in Coro::Handle.
496 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
497 do not have this method (and don't need it either).
498 - speed up generic anyevent methods in Coro::Handle by using rouse
499 callbacks.
500 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
501 others. It also makes the debugger happier, as you can trace
502 through the idle threads now.
503 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
504 - eg/event was pretty broken.
505 - better 5.8.6 compatibility.
506
5075.0 Thu Nov 20 10:35:05 CET 2008
508 - NEW ARCHITECTURE: use the latest 4.x version if you experience
509 stability issues.
510 - bump API version to 7 - all dependents must be recompiled.
511 - removed timed_* functions - they were not being used anyways
512 and should be replaced by a more generic mechanism -
513 and were annoying to support anyways :)
514 - removed SemaphoreSet's waiter method - use sem method instead.
515 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
516 - async_pool did free a scalar value twice
517 ("Attempt to unreference...").
518 - fix a longstanding bug where calling terminate on a coro that
519 was waiting for a semaphore that was just becoming available
520 would cause a deadlock (semaphore would get into a state where
521 it was available but waiters were still blocked).
522 - calling throw on a coroutine that is waiting for a semaphore will
523 no longer make it acquire the semaphore (and thus leak a count).
524 - perl's process emulation is now not even theoretically supported
525 anymore.
526 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
527 conversion of callback-style to blocking-style.
528 - new methods $coro->schedule_to and ->cede_to, to specifically
529 schedule or cede to a specific coroutine.
530 - new function Coro::Semaphore::wait.
531 - use named constants in Coro::Channel (Richard Hundt).
532 - directly patch the entersub opcode calling SLF functions (cede,
533 transfer and so on). this does speed up context switching, but
534 more importanly, it frees us from the hardcoded behaviour of
535 entersub, so we might actually be able to return something from
536 those functions and atcually create new ones.
537 - take advantage of __builtin_frame_address on gcc.
538 - expose THX in coroapi (not sure whether this was a wise decision,
539 as "threaded" perls are running at half speed anyways).
540 - implement execute_slf (schedule-like-function) interface that makes
541 it possible to implement schedule-like-functions in XS.
542 - use new SLF interface to massively speed up Coro::EV by roughly a
543 factor of two.
544 - used new SLF interface to massively speed up Coro::Semaphore by a
545 factor of three.
546 - used new SLF interface to speed up Coro::AIO by roughly a factor of
547 four and reduce its memory usage considerably.
548 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
549 for a nice speedup and vastly more correct behaviour. Also implement
550 a new method "sem" to get at the underlying semaphore object.
551 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
552 (in comparison) 20-40% speedup.
553 - used new SLF interface to reimplement Coro::Signal gaining
554 some unknown (because I was too lazy), but certain, speedup, and also
555 making signals reliable for the first time.
556 - used new SLF interface and other optimisations to speed up async_pool
557 by a factor of two. It also doesn't rely on perl's exception mechanism
558 to exit anymore. The overhead for terminating an async_pool, coro over
559 a normal async is now very small.
560 - sped up coroutine creation/destruction by 40%.
561 - forgot to include Coro/libcoro/README in the dist for all these years.
562 - work around a freebsd pthreads bug (manual testcancel is required as
563 pthread_cond_wait isn't a cancellation point on freebsd).
564 - use new rouse functions to speed up and simplify Coro::BDB.
565 - make "prefer perl native functions" work with threaded perls.
566 - condense Coro::Debug ps output, hint at v and w flags.
567 - (libcoro) lots of minor cleanups and portability improvements.
568
5694.914 Wed Nov 19 12:54:18 CET 2008
570 - fix a disastrous bug in the readline optimisation
571 introduced in 4.801.
572
5734.913 Sat Nov 15 07:58:28 CET 2008
574 - async_pool did free a scalar value twice
575 ("Attempt to unreference...").
576
5774.912 Thu Nov 13 18:31:23 CET 2008
8 - minor cleanups. 578 - minor cleanups.
9 - use much larger stacks on linux and perl < 5.8.8. 579 - use much larger stacks on linux and perl < 5.8.8.
580 - Coro::Debug::new_unix_server did not unlink the socket
581 when destroyed.
10 582
114.911 Tue Nov 11 04:26:17 CET 2008 5834.911 Tue Nov 11 04:26:17 CET 2008
12 - "port" to threaded perls. 584 - "port" to threaded perls.
13 585
144.91 Mon Nov 10 05:36:38 CET 2008 5864.91 Mon Nov 10 05:36:38 CET 2008
… …
21 - ->throw is now supported on Coro::State objects. 593 - ->throw is now supported on Coro::State objects.
22 - clean up cctx creation code a bit. 594 - clean up cctx creation code a bit.
23 - entersub is actually a UNOP, not a LOGOP (not a bugfix). 595 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
24 596
254.9 Sat Nov 8 17:45:27 CET 2008 5974.9 Sat Nov 8 17:45:27 CET 2008
26 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there). 598 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
27 - (libcoro) no longer leak threads in the experimental pthread backend, 599 - (libcoro) no longer leak threads in the experimental pthread backend,
28 also speed it up considerably. 600 also speed it up considerably.
29 - (libcoro) do not rely on makecontext passing void *'s unscathed. 601 - (libcoro) do not rely on makecontext passing void *'s unscathed.
30 - fix compiletime dependencies on libcoro in the Makefile. 602 - fix compiletime dependencies on libcoro in the Makefile.
31 - cctx_count wasn't always updated properly. 603 - cctx_count wasn't always updated properly.
… …
93 - remove debugging code related to MgPV_nolen_const, also try to 665 - remove debugging code related to MgPV_nolen_const, also try to
94 make it compile with perl 5.8.6 (yes, apple apparently loves 666 make it compile with perl 5.8.6 (yes, apple apparently loves
95 outdated software). Reported by John S. 667 outdated software). Reported by John S.
96 668
974.744 Tue Jul 8 22:06:35 CEST 2008 6694.744 Tue Jul 8 22:06:35 CEST 2008
98 - correctly provide default DIE/WARN handlers as documented. 670 - correctly provide default DIE/WARN handlers as documented.
99 - also overwrite PL_vtbl_sigelem.svt_clear, even though current 671 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
100 implementations inside perl work fine for us. 672 implementations inside perl work fine for us.
101 673
1024.743 Mon Jun 16 00:21:57 CEST 2008 6744.743 Mon Jun 16 00:21:57 CEST 2008
103 - when using Coro::EV without running EV::loop it could 675 - when using Coro::EV without running EV::loop it could
… …
125 - sprinkle "no warnings" freely over everything, also suppress 697 - sprinkle "no warnings" freely over everything, also suppress
126 warnings for some other modules. 698 warnings for some other modules.
127 - fix typo in WSAEWOULDBLOCK. 699 - fix typo in WSAEWOULDBLOCK.
128 700
1294.72 Sun May 25 05:14:36 CEST 2008 7014.72 Sun May 25 05:14:36 CEST 2008
130 - tweak META.yaml a bit, unfortunately, there is no documented way 702 - tweak META.yaml a bit, unfortunately, there is no documented way
131 to have optional dependencies with CPAN. doh :( 703 to have optional dependencies with CPAN. doh :(
132 - avoid running some tests on windows because they would fail due to 704 - avoid running some tests on windows because they would fail due to
133 perl bug (broken fork, broken pipes...). 705 perl bug (broken fork, broken pipes...).
134 - work around perl on windows bugs where perl returns undocumented 706 - work around perl on windows bugs where perl returns undocumented
135 error codes for sysread, syswrite etc. by taking advantage 707 error codes for sysread, syswrite etc. by taking advantage
… …
139 - use unix domain sockets in testsuite to work around 711 - use unix domain sockets in testsuite to work around
140 common perl implementation bugs on widows (they are emulated by 712 common perl implementation bugs on widows (they are emulated by
141 tcp sockets on windows. ugh.) 713 tcp sockets on windows. ugh.)
142 714
1434.71 Sat May 24 20:01:27 CEST 2008 7154.71 Sat May 24 20:01:27 CEST 2008
144 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()"). 716 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
145 - take advantage of async name resolution of AnyEvent::Util. 717 - take advantage of async name resolution of AnyEvent::Util.
146 - work around brutal inet_aton override in Coro::LWP. 718 - work around brutal inet_aton override in Coro::LWP.
147 - take advantage of the readyhook in Coro::EV, for smoother 719 - take advantage of the readyhook in Coro::EV, for smoother
148 scheduling. 720 scheduling.
149 721
1504.7 Sun May 11 00:32:19 CEST 2008 7224.7 Sun May 11 00:32:19 CEST 2008
151 - completely reworked the Coro manpage. 723 - completely reworked the Coro manpage.
152 - added Coro::AnyEvent, generic event loop integration. 724 - added Coro::AnyEvent, generic event loop integration.
153 - implement cancel, ready and kill commands in Coro::Debug. 725 - implement cancel, ready and kill commands in Coro::Debug.
154 - document find_coro in Coro::Debug. 726 - document find_coro in Coro::Debug.
155 - incompatible change: rename has_stack to has_cctx. 727 - incompatible change: rename has_stack to has_cctx.
156 - Coro::AIO and Coro::BDB no longer force event model detection, 728 - Coro::AIO and Coro::BDB no longer force event model detection,
157 use AnyEvent::AIO and AnyEvent::BDB. 729 use AnyEvent::AIO and AnyEvent::BDB.
… …
281 853
2824.11 Thu Oct 11 02:40:24 CEST 2007 8544.11 Thu Oct 11 02:40:24 CEST 2007
283 - port to threaded perls. 855 - port to threaded perls.
284 856
2854.1 Thu Oct 11 02:38:16 CEST 2007 8574.1 Thu Oct 11 02:38:16 CEST 2007
286 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now 858 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
287 be local to each coro (see Coro::State). 859 be local to each coro (see Coro::State).
288 - incompatible change: for very deep reasons, cede and cede_notself 860 - incompatible change: for very deep reasons, cede and cede_notself
289 cannot return anything, so nothing will be returned. 861 cannot return anything, so nothing will be returned.
290 - possibly bring back 5.10 compatibility (untested). 862 - possibly bring back 5.10 compatibility (untested).
291 - work around stupid (and wrong) warning on 5.10 :(. 863 - work around stupid (and wrong) warning on 5.10 :(.
… …
363 but stateful semantics. 935 but stateful semantics.
364 - fixed a lot of typos in Coro.pm (patch submitted by David 936 - fixed a lot of typos in Coro.pm (patch submitted by David
365 Steinbrunner, which applied flawlessly). 937 Steinbrunner, which applied flawlessly).
366 938
3673.6 Sat Apr 14 17:13:31 CEST 2007 9393.6 Sat Apr 14 17:13:31 CEST 2007
368 - added some bugfixes to get eg/myhttpd working again. 940 - added some bugfixes to get eg/myhttpd working again.
369 - added Coro::Storable for often-cede'ing freeze/thaw. 941 - added Coro::Storable for often-cede'ing freeze/thaw.
370 - try to do a clean exit when a coroutine calls exit 942 - try to do a clean exit when a coroutine calls exit
371 (EXPERIMENTAL). 943 (EXPERIMENTAL).
372 - got rid of indirect call through _coro_init. 944 - got rid of indirect call through _coro_init.
373 - updated the partly antique examples in eg/ to 945 - updated the partly antique examples in eg/ to

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