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Comparing Coro/Changes (file contents):
Revision 1.355 by root, Tue May 27 06:41:42 2008 UTC vs.
Revision 1.656 by root, Fri Jun 17 04:59:27 2016 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO. 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
96.5
10 - swap_sv swapping order was not symmetrical, causing
11 wrong swaps when swap_sv was used multiple times on the
12 same sv in the same thread.
13 - swap_sv calls can now be undone by calling it again
14 with the same variables.
15 - swap_sv calls will now be undone in async_pool threads.
16 - split Coro::Semaphore::up/adjust into separate xs functions
17 for better error reporting, at slight codesize increase.
18 - (libcoro) arm assembly support, please test and report.
19
206.49 Sat Oct 17 01:40:12 CEST 2015
21 - throwing an exception to a thread waiting in
22 Coro::Handle using Coro::EV did not stop the watchers,
23 causing the next call to fail (testcase by Martin Pritchard).
24 - bump minimum perl version to 5.10.
25
266.48 Sun Oct 4 19:03:51 CEST 2015
27 - fix memory leak when Coro::Handle uses Coro::EV internally
28 (testcase by Sten Sten).
29 - update code to libev 4 API (internally, Coro still used the
30 version 3 API calls).
31 - remove unused hv_sig.
32
336.47 Sat Jul 11 03:58:20 CEST 2015
34 - swap_svs - NVs can be in the SV head beginning with 5.20.
35
366.46 Tue Jun 30 14:36:30 CEST 2015
37 - restore portability to perls with windows fork emulation
38 (patch by Petr Písař).
39
406.45 Tue Jun 30 01:40:08 CEST 2015
41 - restore portability to perl 5.16 and below.
42
436.44 Tue Jun 30 00:41:54 CEST 2015
44 - avoid segfaulting (or worse) when tracing a canceled thread.
45 - the Event module silently broke it's public hook API, causing
46 failures on perls compiled with -Duselongdouble. Requiring
47 the latest version of Event because I don't know which release
48 changed this (it's not mentioned in the ChangeLog).
49 - allow xs level enterleave hooks via CoroAPI.
50
516.43 Thu Jun 4 15:38:14 CEST 2015
52 - use stability canary.
53 - port to stableperl-5.22.0-1.001.
54 - update libecb.
55
566.42 Wed Feb 11 20:29:52 CET 2015
57 - Coro::SemaphoreSet->try did not actually work (analyzed by
58 SATO Kentaro).
59 - upgrade libecb to be C11 compliant.
60
616.41 Sat Sep 6 22:08:46 CEST 2014
62 - restore portability to perl 5.8.x.
63 - give new Coro's a valid GvHV(PL_hintgv) - this is slow and takes
64 up some memory, but fixes "use feature" and similar modules
65 when used inside a Coro.
66 - allow zero as argument to Coro::Channel to mean the same thing
67 as no argument. this works with older versions as well,
68 but wasn't legal until now.
69 - slightly better c header file detection.
70
716.39 Mon Jun 2 00:00:08 CEST 2014
72 - work around more incompatible changes in 5.20.
73
746.38 Sun Jun 1 21:54:23 CEST 2014
75 - check that perl slots actually have enough space to hold
76 interpreter variables.
77 - untested port to perl 5.19 (64 bit tmps indices) (reported
78 by Andreas König).
79 - croak when cancel is called without a thread context.
80
816.37 Tue Mar 4 13:27:33 CET 2014
82 - *sigh*, removed leftover debugging code from debugging a
83 perl bug, of all things.
84
856.36 Tue Mar 4 07:11:59 CET 2014
86 - semaphores would not clear the destroy hook when interrupted
87 by ->throw, causing segfaults or worse.
88 - ->throw on a thread waiting for a semaphore did not acquire
89 the semaphore, but also didn't wake up other waiters,
90 possibly causing a deadlock.
91 - "FATAL: $Coro::IDLE blocked itself" will now use Carp::confess
92 to report a full stacktrace, which should help find out
93 where the actual call is.
94 - "atomically" destroy data in slf_destroy, because it is
95 the right thing to do, just in case.
96 - disable ecb.h libm dependency, to compile on ancient systems
97 or under adverse conditions.
98
996.33 Mon Nov 18 11:26:27 CET 2013
100 - do not crash when freeing padlists with holes (in 5.18).
101 - tentative SVt_BIND 5.19 port/fix.
102
1036.32 Tue Nov 5 15:35:35 CET 2013
104 - use a new algorithm to derive padlists for perl 5.18. The old
105 one could lead to 0-pointer accesses inside perl (reported
106 by Darin McBride).
107
1086.31 Thu May 9 07:39:48 CEST 2013
109 - Coro::AIO requests would crash if the thread was ready'd
110 while the request was ongoing.
111
1126.29 Wed May 8 02:55:18 CEST 2013
113 - when an on_destroy handler destructs the coro currently being
114 destructed a perl scalar could be accessed after being freed,
115 likely causing a crash.
116
1176.28 Wed Mar 6 06:58:02 CET 2013
118 - clean remnants of existing __DIE__ and __WARN__ handlers so
119 they lose their magic and will not cause segfaults later
120 (testcase by Andrey Sagulin).
121 - improved Coro::State documentation a bit.
122 - Coro::Debug::command now flushes the output.
123 - add hack detection code for x32 abi, because the braindead slugs
124 who designed that made it look exactly like x86_64 without
125 providing proper compile time symbols to test for it. as a result,
126 this detection cannot work reliably.
127 - valgrind stack registering was broken.
128 - do not rely on Time::HiRes anymore in Coro::Debug.
129
1306.23 Fri Dec 7 23:36:37 CET 2012
131 - use experimental fiber implementation on native windows
132 perls.
133 - use sizeof (void *) as multiplication factor for stack sizes,
134 to accomodate the totally braindamaged microsoft 64 bit "os".
135 - changed verifier host from win2k-ap510-32 to win7-sp516-32/64.
136 activeperl 5.16 crashes when PerlIO_define_layer is called due
137 to some bug in the perl dll, strawberry perl at least passes
138 the testsuite.
139 - implement Coro::Handle->peeraddr/host/port, for slightly
140 improved compatibility with LWP.
141 - implement 5.17 compatibility by almost blindly applying a
142 good-looking patch by Father Chrysostomos.
143 - move stack management functions into libcoro 3.
144 - libcoro version 3 "released".
145 - support magic values as timed_io_once args.
146 - recommend AnyEvent 7+ or EV 4+, also require EV
147 version 4 or newer for Coro::EV.
148
1496.10 Tue Oct 9 01:14:27 CEST 2012
150 - updated ecb.h, it had a typo that caused it to not compile on many
151 big endian systems (reported by many people).
152 - disable memory fences in ecb.h to improve portability.
153
1546.09 Sat Oct 6 23:25:02 CEST 2012
155 - Coro::EV I/O watchers were not interruptible by exceptions
156 (Coro::State::throw) (testcase by sten).
157 - ->throw now puts threads into the ready queue, as this seems to
158 be expected by existing code, and code that doesn't cope with spurious
159 wakeups needs fixing anyway.
160 - use fd -1 in mmap.
161 - cast I32 to int in error message printf.
162 - warn about broken so-called "hardened" kernels.
163
1646.08 Fri Apr 13 12:05:47 CEST 2012
165 - be more aggressive about exiting like perl does - formerly,
166 exiting from the non-main thread would not execute END blocks.
167
1686.07 Fri Nov 11 21:21:48 CET 2011
169 - work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV).
170 - update ecb.h.
171
1726.06 Mon Aug 8 23:59:48 CEST 2011
173 - cygwin unfortunately patches the stack at runtime, so we use the pthreads
174 backend, which is an order of magnitude slower. unfortunately, cygwins
175 pthread implementation isn't very complete either, so allocate the stack
176 twice just to be sure.
177 (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS,
178 in its ithreaded perl - best recompile cygwin and use the 'w'indows
179 backend for much better performance. also disable ithreads for
180 even better performance...).
181
1826.05 Thu Aug 4 21:36:36 CEST 2011
183 - blush, condvar values would not be propagated from send to recv anymore
184 (reported by Chip Salzenberg).
185 - use exponential increase for the readline buffer length in
186 Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes.
187
1886.04 Wed Aug 3 17:15:45 CEST 2011
189 - use even more efficient and more compatible condvars for
190 compatibility to AnyEvent 6.x :)
191 - more inconsequential ecb.h updates.
192
1936.03 Wed Aug 3 11:41:30 CEST 2011
194 - change how Coro patches AnyEvent condvars for compatibility to
195 AnyEvent 6.x.
196 - update ecb.h, to no longer include <pthread.h> in case WinNT.h
197 hasn't been included.
198
1996.02 Wed Jul 13 04:35:19 CEST 2011
200 - "improve portability to Gentoo" - gentoo manages to put perl variables
201 in memory areas that are farther than 2gb apart, which the jit couldn't
202 handle and barfed. now it's just a bit slower on gentoo and similar
203 systems.
204
2056.01 Sun Jul 3 12:31:14 CEST 2011
206 - workarounds are good, but the test for whether pthreads are used
207 was not good. this one should be better.
208 - check differently whether gcc generates cfi instructions itself.
209
2106.0 Wed Jun 29 19:43:35 CEST 2011
211 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
212 destroyed and cleaned up automatically (e.g. async { schedule }).
213 - implement a JIT compiler for part of the thread switch code,
214 which gives a 50% speed improvement on threaded perls, and
215 about 4% on non-threaded perls (so threaded perls now finally
216 reach about half the speed of non-threaded perls).
217 - slightly modernise Coro::Intro, add section about rouse functions.
218 - avoid DEFSV and ERRSV, giving another 10% improvement
219 in thread switching.
220 - Coro::State->is_destroyed is now called is_zombie.
221 - implement a Coro->safe_cancel method that might fail, but
222 cancels in a "safer" way if it succeeds.
223 - add preliminary support for DEBUGGING perls.
224 - get rid of two hash-accesses when initialising a new Coro - this
225 speeds up coro creation by almost a factor of two.
226 - croak when a coro that is being cancelled tries to block
227 (e.g. while executing a guard block), instead of crashing or
228 deadlocking.
229 - use a more robust and also faster method to identify Coro::State
230 objects - speeds up everything a bit.
231 - implement Coro->cancel in XS for a 20% speed improvement, and to
232 be able to implement mutual cancellation.
233 - speed up context switches by a percent or two by more efficiently
234 allocating context stack entries.
235 - implement Coro->join and Coro->on_destroy in XS for a speedup and
236 a reduction in memory use.
237 - cancelling a coro while it itself is cancelling another coro is
238 now supported and working, instead of triggering an assertion.
239 - be a bit more crash-resistant when calling (buggy) on_destroy
240 callbacks (best effort).
241 - move on_destroy into the slf_frame, to allow extension slf
242 functions to have destructors.
243 - get rid if coro refcounting - simply crash in other interpreter
244 threads by nulling the pointers on clone.
245 - simplify warn/die hook handling when loading Coro - the convoluted
246 logic seems to be no longer neccessary.
247 - use libecb instead of our own home-grown gcc hacks.
248 - document alternatives to Coro::LWP. Please use them :)
249 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
250 sigaltstack. Really. wine suffers from it, erlang suffers from it,
251 and it's known since at least 2006.
252
2535.372 Wed Feb 23 06:14:30 CET 2011
254 - apparently mingw doesn't provide a working gettimeofday, try to
255 work around that by relying on Time::HiRes (indirectly brought to
256 my attention by Max Maischein).
257 - fix some portability issues when Time::HiRes was used.
258
2595.371 Mon Feb 21 14:36:08 CET 2011
260 - backport to windows process emulation code again.
261
2625.37 Sat Feb 19 07:49:44 CET 2011
263 - add a big "Coro thread life cycle" section to "man Coro".
264 - try a tentative workaround against the breakage that 5.13 has
265 introduced without depreciation period. sigh.
266 - no longer use Time::HiRes if gettimeofday is available, which
267 saves quite a lot of memory.
268
2695.36 Sun Feb 13 05:33:41 CET 2011
270 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
271 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
272 method call.
273 - undocument Coro::Timer::sleep and obsolete whole module.
274 - optimise Coro::Timer::timeout memory and cpu usage.
275 - slightly updated Coro::Intro for recent changes.
276 - do not initialise PL_dirty anymore.
277
2785.25 Thu Nov 11 01:08:39 CET 2010
279 - try a different approach on netbsd - netbsd 5 finally has marginally
280 working pthreads, but still broken ucontext/sigaltstack.
281 - openbsd 4.8 finally got their act together, Coro works out of the box
282 with asm, setjmp and pthreads (no change, just informational).
283
2845.24 Sat Oct 23 11:27:12 CEST 2010
285 - port to the EV 4.0 API.
286 - work around bugs in mingw32, making strawberry perl work
287 out of the box.
288 - correctly modify Coro::AIO function prototypes
289 so that they reflect the "no optional parameters" rule.
290 - "ported" libcoro to C++.
291
2925.23 Mon May 17 18:50:42 CEST 2010
293 - be more resistant to ordering changes when initialising
294 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
295 Waldorf).
296 - document that perl 5.12 deliberately removed support for cloning.
297
2985.22 Wed Apr 14 03:55:35 CEST 2010
299 - correctly return udnef on errors in Coro::Handle::read/write
300 (testcase by Marc Mims).
301 - convert Coro::Util into a "perl compatibility wrapper" - the functions
302 are less useful now, but are drop-in replacements for existing
303 functions, listing better alternatives in the documentation. This also
304 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
305 with Coro::Util::inet_aton.
306 - do not override $Coro::idle unconditionally in Coro.pm, as other
307 modules could have provided their own idle coro already
308 (for exmaple, Coro::AnyEvent).
309 - fix Coro::Util::gethost* functions.
310 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
311
3125.21 Wed Dec 16 07:19:51 CET 2009
313 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
314 together.
315 - add some examples on how to combine other event loops with Coro in
316 Coro::AnyEvent, and how to run it (and not to block). Seems to be
317 the most common source of confusion.
318 - try to catch people naively blocking in an event callback.
319 - work around the perl filehandle bug issue in conjunction with
320 older common::sense (as indirectly pointed out by ZSystem).
321 - clarify the "not from signal handlers" section.
322
3235.2 Sun Oct 4 14:54:24 CEST 2009
324 - Coro::Storable destroyed the prototypes of the functions it wrapped.
325 - export rouse_cb and rouse_wait by default now.
326 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
327 - new method $state->swap_sv.
328 - added section on "windows process emulation" to the manpage,
329 after a not-so-fruitful (nor-friendly) "discussion" with chip
330 salzenberg (discussion implies arguments, but his only arguments
331 were ad-hominems, one wonders why he started it in the first
332 place). I hope this explains it well enough for him to understand,
333 and maybe well enough for others to understand.
334 - use common::sense everywhere now.
335 - idle callbacks are no longer supported, use idle coros instead.
336 - print a thread listing when a deadlock is detected.
337
3385.17 Sat Aug 22 23:09:31 CEST 2009
339 - work around a bug in the perl debugger causing crashes
340 when running under the debugger by marking _pool_handler as nodebug.
341 - speed up Coro::async considerably.
342 - try some hacks to get netbsd to work "more often" - their broken
343 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
344 - convert Coro to AE 5.0 API.
345
3465.162 Tue Jul 28 04:04:03 CEST 2009
347 - perl 5.8.2 is now minimum requirement.
348 - skip t/19_handle.t on broken windows perls.
349
3505.161 Wed Jul 22 04:47:38 CEST 2009
351 - Coro::AnyEvent::poll could have a different prototype when EV was
352 used as backend (analyzed by Tatsuhiko Miyagawa).
353 - Coro::AnyEvent errornously initialised the event loop when loaded,
354 not on demand.
355 - try to workaround rare */t/01_unblock.t failures.
356
3575.16 Tue Jul 21 01:44:37 CEST 2009
358 - Coro::AnyEvent failed to hook into the event loop
359 when no threads had been readied between detecting
360 the event loop and actually running it.
361 - considerably speed up Coro::Select by taking avdantage
362 of AnyEvent > 4.8 and some other optimisations.
363 - implement paragraph readline mode in Coro::Handle
364 (based on patches by Zsbán Ambrus).
365 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
366 and analyzed by Yasuhiro MATSUMOTO).
367 - clarified libcoro license and copyright.
368 - someone stole my EXTRA_META!!!
369 - implement Coro::Select::patch_pp_sselect and it's brother,
370 for hardcode select overriding.
371
3725.151 Mon Jul 6 05:41:57 CEST 2009
373 - backport to windows process emulation code again (patch by
374 Yasuhiro MATSUMOTO).
375 - slightly update Coro::MakeMaker.
376
3775.15 Tue Jun 30 10:28:06 CEST 2009
378 - deprecate Coro::Socket, document how to get ipv6 support via
379 AnyEvent::Socket instead.
380 - implement signal->wait ($cb) interface, similar to semaphores.
381 - work around SvOK not supporting getmagic, so we have to getmagic
382 to test for undef :/ (reported by Matthias Waldorf).
383 - load Coro::AnyEvent in all modules using AnyEvent.
384 - work around perl corrupting our internal data structures,
385 reported by Tokuhiro Matsuno.
386 - enable per-coroutine real and cpu time gathering
387 (Coro::State::enable_times).
388
3895.14 Wed Jun 24 01:37:48 CEST 2009
390 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
391 as this seems to have been a difficult concept (poll, sleep, idle,
392 idle_upto).
393 - add Coro::AnyEvent::readable/writable functions.
394 - clarify Coro::EV/Event/AnyEvent manpages.
395 - free per-thread global scalars in the thread calling ->cancel, to
396 avoid crashes when $_, $@ etc., are magical but some of those
397 had already been freed.
398 - "unexperimentalise" the callback interface for Coro::Semaphore.
399 - speed up ready queue management/context switching by using a linked
400 list instead of an array (~5-10%).
401 - implement "watch" command in Coro::Debug shells.
402 - for fun, implement time-slicing as an example in the manpage.
403 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
404 Coro::Event, use the normal AnyEvent handling instead of dieing
405 (the same is true for Coro::Handle).
406 - properly document Coro::EV::timed_io_once.
407 - avoid unneccessary ->cancel calls in Coro::Handle.
408 - maybe make it work on mingw32 with win32 backend
409 (based on patch by Yasuhiro Matsumoto).
410
4115.132 Fri May 29 09:00:39 CEST 2009
412 - do not keep a reference to the argument itself in
413 Coro::Semaphore::guard, as it could change later.
414 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
415 should support a prepare callback.
416
4175.131 Mon Mar 16 23:20:37 CET 2009
418 - implement and document Coro->suspend, Coro->resume.
419 - fix Coro::Select implementation to not (often) close
420 the passed file descriptors (testcase provided by pippijn).
421
4225.13 Mon Dec 15 21:51:42 CET 2008
423 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
424 - don't set diehook to C<undef> but instead to NULL, to avoid
425 spurious warnings.
426 - fix a lot of bugs in Coro::SemaphoreSet.
427 - Coro::SemaphoreSet will less often create a semaphore needlessly.
428 - add Coro::SemaphoreSet::count and wait methods.
429 - take advantage of the new Guard module.
430 - deprecate Coro::guard.
431 - try to fix the dreaded 01_unblock tests once more. I hate it when
432 testsuites need more fixing than the code they are supposed to test.
433 - croak in more cases when a required callback isn't resolvable.
434 - fix some minor issues in Coro::State->call/eval.
435 - use current coroutine context instead of a temporary one
436 when temporarily switching to another coroutine.
437 - do not call C-level on_destroy handlers during global destruction,
438 to avoid needless segfaults.
439
4405.12 Sun Dec 7 13:30:38 CET 2008
441 - add default config for MirOS, which seems to be a bug-to-bug
442 compatible fork of openbsd ("world domination by releasing
443 openbsd cvs before the openbsd folks do it" or so :).
444 - free_padlist did destroy the names pad, not good, but didn't
445 seem to bother perl - this could fix issues such as eval ""
446 inside a function called from multiple coroutines.
447 - use a different method to detect destruction time.
448 - be more careful when freeing padlists just before global
449 destruction.
450 - fixed and expanded the call/cc example.
451 - renamed _terminate to _coro_run.
452 - new method Coro::Channel->shutdown.
453 - try pthreads on openbsd <4.4 (broken sigaltstack, will
454 pthreads fare better?).
455 - be less picky about destroying "a" running coroutine.
456
4575.11 Tue Nov 25 21:49:05 CET 2008
458 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
459 working code with failed assertions, introducing more bugs than
460 it fixes, requiring elaborate workarounds :(
461
4625.1 Mon Nov 24 08:54:59 CET 2008
463 - wrote a small introductory tutorial - Coro::Intro.
464 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
465 - Coro::Select did errornously dup the file descriptors
466 and didn't work with all AnyEvent backends.
467 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
468 LWP data transfers.
469 - disassociate c contexts from coro objects - this is agruably more
470 correct, but mostly allows sharing of cctxs between coro and state
471 objects, for added memory savings and speed increases.
472 - bumped $Coro::POOL_RSS up to 32kb by default.
473 - no longer set the optype to OP_CUSTOM, as B::* understandably
474 doesn't like this very much (and we *are* a type of entersub).
475 - implement state cloning, just to prove that call/cc can be done.
476 - automatically load Coro::AnyEvent in Coro::Handle.
477 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
478 do not have this method (and don't need it either).
479 - speed up generic anyevent methods in Coro::Handle by using rouse
480 callbacks.
481 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
482 others. It also makes the debugger happier, as you can trace
483 through the idle threads now.
484 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
485 - eg/event was pretty broken.
486 - better 5.8.6 compatibility.
487
4885.0 Thu Nov 20 10:35:05 CET 2008
489 - NEW ARCHITECTURE: use the latest 4.x version if you experience
490 stability issues.
491 - bump API version to 7 - all dependents must be recompiled.
492 - removed timed_* functions - they were not being used anyways
493 and should be replaced by a more generic mechanism -
494 and were annoying to support anyways :)
495 - removed SemaphoreSet's waiter method - use sem method instead.
496 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
497 - async_pool did free a scalar value twice
498 ("Attempt to unreference...").
499 - fix a longstanding bug where calling terminate on a coro that
500 was waiting for a semaphore that was just becoming available
501 would cause a deadlock (semaphore would get into a state where
502 it was available but waiters were still blocked).
503 - calling throw on a coroutine that is waiting for a semaphore will
504 no longer make it acquire the semaphore (and thus leak a count).
505 - perl's process emulation is now not even theoretically supported
506 anymore.
507 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
508 conversion of callback-style to blocking-style.
509 - new methods $coro->schedule_to and ->cede_to, to specifically
510 schedule or cede to a specific coroutine.
511 - new function Coro::Semaphore::wait.
512 - use named constants in Coro::Channel (Richard Hundt).
513 - directly patch the entersub opcode calling SLF functions (cede,
514 transfer and so on). this does speed up context switching, but
515 more importanly, it frees us from the hardcoded behaviour of
516 entersub, so we might actually be able to return something from
517 those functions and atcually create new ones.
518 - take advantage of __builtin_frame_address on gcc.
519 - expose THX in coroapi (not sure whether this was a wise decision,
520 as "threaded" perls are running at half speed anyways).
521 - implement execute_slf (schedule-like-function) interface that makes
522 it possible to implement schedule-like-functions in XS.
523 - use new SLF interface to massively speed up Coro::EV by roughly a
524 factor of two.
525 - used new SLF interface to massively speed up Coro::Semaphore by a
526 factor of three.
527 - used new SLF interface to speed up Coro::AIO by roughly a factor of
528 four and reduce its memory usage considerably.
529 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
530 for a nice speedup and vastly more correct behaviour. Also implement
531 a new method "sem" to get at the underlying semaphore object.
532 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
533 (in comparison) 20-40% speedup.
534 - used new SLF interface to reimplement Coro::Signal gaining
535 some unknown (because I was too lazy), but certain, speedup, and also
536 making signals reliable for the first time.
537 - used new SLF interface and other optimisations to speed up async_pool
538 by a factor of two. It also doesn't rely on perl's exception mechanism
539 to exit anymore. The overhead for terminating an async_pool, coro over
540 a normal async is now very small.
541 - sped up coroutine creation/destruction by 40%.
542 - forgot to include Coro/libcoro/README in the dist for all these years.
543 - work around a freebsd pthreads bug (manual testcancel is required as
544 pthread_cond_wait isn't a cancellation point on freebsd).
545 - use new rouse functions to speed up and simplify Coro::BDB.
546 - make "prefer perl native functions" work with threaded perls.
547 - condense Coro::Debug ps output, hint at v and w flags.
548 - (libcoro) lots of minor cleanups and portability improvements.
549
5504.914 Wed Nov 19 12:54:18 CET 2008
551 - fix a disastrous bug in the readline optimisation
552 introduced in 4.801.
553
5544.913 Sat Nov 15 07:58:28 CET 2008
555 - async_pool did free a scalar value twice
556 ("Attempt to unreference...").
557
5584.912 Thu Nov 13 18:31:23 CET 2008
559 - minor cleanups.
560 - use much larger stacks on linux and perl < 5.8.8.
561 - Coro::Debug::new_unix_server did not unlink the socket
562 when destroyed.
563
5644.911 Tue Nov 11 04:26:17 CET 2008
565 - "port" to threaded perls.
566
5674.91 Mon Nov 10 05:36:38 CET 2008
568 - the ->throw exception object no longer leaks.
569 - creating a new cctx leaked a scopestack entry (memleak).
570 - new coroutines didn't get created with a zero flags field
571 (unknown impact).
572 - calling ->throw on a not-yet-started coroutine should now work
573 instead of being ignored.
574 - ->throw is now supported on Coro::State objects.
575 - clean up cctx creation code a bit.
576 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
577
5784.9 Sat Nov 8 17:45:27 CET 2008
579 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
580 - (libcoro) no longer leak threads in the experimental pthread backend,
581 also speed it up considerably.
582 - (libcoro) do not rely on makecontext passing void *'s unscathed.
583 - fix compiletime dependencies on libcoro in the Makefile.
584 - cctx_count wasn't always updated properly.
585 - Coro::State::cctx_stacksize wasn't applied correctly.
586 - new function Coro::State::cctx_max_idle.
587 - the default max number of idle C contexts is now 4.
588 - (libcoro) try harder to get _setjmp/_longjmp.
589 - (libcoro) cleanup and extend the libcoro API to officially
590 allow the creation of empty source contexts.
591 - very experimental workaround for the totally broken netbsd platform.
592 - tried to hack around openbsd bugs.
593
5944.804 Wed Nov 5 16:36:00 CET 2008
595 - Coro::Debug::new_unix_server would not create a non-blocking listening
596 socket, sometimes causing freezes.
597 - (libcoro) fix misaligned stack points for setjmp and assembly
598 methods, which can cause crashes on x86/x86_64 with a sufficiently
599 aggressive compiler.
600 - new function: Coro::Debug::new_tcp_server.
601 - move ->throw into the Coro class because it only works on coro objects.
602
6034.803 Mon Nov 3 17:16:12 CET 2008
604 - (libcoro) use a global asm statement to become independent of gcc
605 otpimisations for CORO_ASM (thanks to pippijn for the idea).
606 - try to workaround yet another broken bsd, this time dragonfly.
607
6084.802 Thu Oct 30 10:56:12 CET 2008
609 - support -fno-omit-frame-pointer on x86 with the assembly method.
610 - tune 01_unblock.t tests a bit.
611
6124.801 Wed Oct 22 18:33:37 CEST 2008
613 - improve readline speed for very long "lines".
614 - backport to 5.8.8.
615
6164.8 Thu Oct 2 13:34:40 CEST 2008
617 - new function Coro::AIO::aio_wait.
618 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
619 - greatly speed up and reduce memory usage of Coro::AIO requests.
620 - implement some other µ-optimisations.
621
6224.749 Mon Sep 29 14:40:12 CEST 2008
623 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
624
6254.748 Sat Sep 27 14:03:19 CEST 2008
626 - implement, but do not document, PerlIO::cede(granularity).
627 - Coro::Storable forgot to wrap Storable::pstore.
628 - work around the multitude of leaks and memory corruption
629 bugs in PerlIO::via by using our own C-level perliol. As a side
630 effect, Coro::Storable is now much, much, much faster.
631
6324.747 Tue Sep 23 01:59:41 CEST 2008
633 - fix a per-cv memleak (one empty array was leaked per
634 code reference).
635 - avoid a crash in coro->call|rss when the coroutine was already
636 destroyed (most noticably when using Coro::Debug::ps :)
637 - also protect *Storable::FILE.
638 - push up default storable granularity to 20ms.
639
6404.746 Sun Sep 21 03:22:20 CEST 2008
641 - be more insistent on locking Storable against reentrancy
642 in Coro::Storable.
643 - move swap_def?v and throw to Coro::State, as documented.
644
6454.745 Thu Jul 24 00:14:38 CEST 2008
646 - remove debugging code related to MgPV_nolen_const, also try to
647 make it compile with perl 5.8.6 (yes, apple apparently loves
648 outdated software). Reported by John S.
649
6504.744 Tue Jul 8 22:06:35 CEST 2008
651 - correctly provide default DIE/WARN handlers as documented.
652 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
653 implementations inside perl work fine for us.
654
6554.743 Mon Jun 16 00:21:57 CEST 2008
656 - when using Coro::EV without running EV::loop it could
657 result in busy-waiting for events, this has been fixed.
658 - reduce codesize and improve performance by using EV_DEFAULT_UC.
659
6604.742 Sat May 31 14:10:21 CEST 2008
661 - implement a workaround for (some) perl <5.8.8 versions.
662 - require EV 3.3+.
663
6644.741 Fri May 30 23:33:09 CEST 2008
665 - tell netbsd how utterly broken their imitation of an OS is
666 and refuse to build by default if pthreads are in use.
667 - switch to "s" method on all bsd's by default, as their ucontext
668 stuff seems just too broken.
669 - fix a bug in Coro::Select.
670
6714.74 Thu May 29 20:05:31 CEST 2008
672 - do not test Coro::LWP for lack of dependencies.
673 - do not test Coro::Select for lack of working perls.
674
6754.73 Thu May 29 2008
676 - fix a bug in Coro::EV which would cause it to block despite
677 there being runnable coroutines.
8 - sprinkle "no warnings" freely over everything, also suppress 678 - sprinkle "no warnings" freely over everything, also suppress
9 warnings for some other modules. 679 warnings for some other modules.
10 - fix typo in WSAEWOULDBLOCK. 680 - fix typo in WSAEWOULDBLOCK.
11 681
124.72 Sun May 25 05:14:36 CEST 2008 6824.72 Sun May 25 05:14:36 CEST 2008
13 - tweak META.yaml a bit, unfortunately, there is no documented way 683 - tweak META.yaml a bit, unfortunately, there is no documented way
14 to have optional dependencies with CPAN. doh :( 684 to have optional dependencies with CPAN. doh :(
15 - avoid running some tests on windows because they would fail due to 685 - avoid running some tests on windows because they would fail due to
16 perl bug (broken fork, broken pipes...). 686 perl bug (broken fork, broken pipes...).
17 - work around perl on windows bugs where perl returns undocumented 687 - work around perl on windows bugs where perl returns undocumented
18 error codes for sysread, syswrite etc. by taking advantage 688 error codes for sysread, syswrite etc. by taking advantage
… …
22 - use unix domain sockets in testsuite to work around 692 - use unix domain sockets in testsuite to work around
23 common perl implementation bugs on widows (they are emulated by 693 common perl implementation bugs on widows (they are emulated by
24 tcp sockets on windows. ugh.) 694 tcp sockets on windows. ugh.)
25 695
264.71 Sat May 24 20:01:27 CEST 2008 6964.71 Sat May 24 20:01:27 CEST 2008
27 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()"). 697 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
28 - take advantage of async name resolution of AnyEvent::Util. 698 - take advantage of async name resolution of AnyEvent::Util.
29 - work around brutal inet_aton override in Coro::LWP. 699 - work around brutal inet_aton override in Coro::LWP.
30 - take advantage of the readyhook in Coro::EV, for smoother 700 - take advantage of the readyhook in Coro::EV, for smoother
31 scheduling. 701 scheduling.
32 702
334.7 Sun May 11 00:32:19 CEST 2008 7034.7 Sun May 11 00:32:19 CEST 2008
34 - completely reworked the Coro manpage. 704 - completely reworked the Coro manpage.
35 - added Coro::AnyEvent, generic event loop integration. 705 - added Coro::AnyEvent, generic event loop integration.
36 - implement cancel, ready and kill commands in Coro::Debug. 706 - implement cancel, ready and kill commands in Coro::Debug.
37 - document find_coro in Coro::Debug. 707 - document find_coro in Coro::Debug.
38 - incompatible change: rename has_stack to has_cctx. 708 - incompatible change: rename has_stack to has_cctx.
39 - Coro::AIO and Coro::BDB no longer force event model detection, 709 - Coro::AIO and Coro::BDB no longer force event model detection,
40 use AnyEvent::AIO and AnyEvent::BDB. 710 use AnyEvent::AIO and AnyEvent::BDB.
… …
164 834
1654.11 Thu Oct 11 02:40:24 CEST 2007 8354.11 Thu Oct 11 02:40:24 CEST 2007
166 - port to threaded perls. 836 - port to threaded perls.
167 837
1684.1 Thu Oct 11 02:38:16 CEST 2007 8384.1 Thu Oct 11 02:38:16 CEST 2007
169 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now 839 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
170 be local to each coro (see Coro::State). 840 be local to each coro (see Coro::State).
171 - incompatible change: for very deep reasons, cede and cede_notself 841 - incompatible change: for very deep reasons, cede and cede_notself
172 cannot return anything, so nothing will be returned. 842 cannot return anything, so nothing will be returned.
173 - possibly bring back 5.10 compatibility (untested). 843 - possibly bring back 5.10 compatibility (untested).
174 - work around stupid (and wrong) warning on 5.10 :(. 844 - work around stupid (and wrong) warning on 5.10 :(.
… …
246 but stateful semantics. 916 but stateful semantics.
247 - fixed a lot of typos in Coro.pm (patch submitted by David 917 - fixed a lot of typos in Coro.pm (patch submitted by David
248 Steinbrunner, which applied flawlessly). 918 Steinbrunner, which applied flawlessly).
249 919
2503.6 Sat Apr 14 17:13:31 CEST 2007 9203.6 Sat Apr 14 17:13:31 CEST 2007
251 - added some bugfixes to get eg/myhttpd working again. 921 - added some bugfixes to get eg/myhttpd working again.
252 - added Coro::Storable for often-cede'ing freeze/thaw. 922 - added Coro::Storable for often-cede'ing freeze/thaw.
253 - try to do a clean exit when a coroutine calls exit 923 - try to do a clean exit when a coroutine calls exit
254 (EXPERIMENTAL). 924 (EXPERIMENTAL).
255 - got rid of indirect call through _coro_init. 925 - got rid of indirect call through _coro_init.
256 - updated the partly antique examples in eg/ to 926 - updated the partly antique examples in eg/ to

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