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Comparing Coro/Changes (file contents):
Revision 1.427 by root, Tue Nov 18 05:51:38 2008 UTC vs.
Revision 1.669 by root, Fri Jul 14 23:09:51 2017 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
8TODO: testcancel 9 - removed attributres example and made sure the other examples
9TODO: aio 10 still work.
10TODO: Coro::Semaphore 11
11TODO: trow disturbs cleanup path inside pp_slf? 126.512 Fri Jul 14 05:03:17 CEST 2017
12TODO: throw special-case in transfer? 13 - seems to pass test suite down till 5.8.9, so make this the
13TODO: document throw limitations 14 minimum requirement in Makefile.PL.
145.0 15 - experimental 5.24 compatibility changes (SUB_ARGARRAY).
16 - experimental 5.26 compatibility changes (PL_comppad -> PADOFFSET).
17 - disable FORTIFY_SOURCE to avoid broken (but well-intentioned)
18 fortified longjmp variants in some libcs.
19 - re-try JIT allocation without PROT_EXEC, to hopefully improve
20 portability (still doesn't seem to work around broken selinux
21 mmap everywhere).
22 - speling fixes (Xavier Guimard).
23
246.511 Sun Jun 26 23:44:50 CEST 2016
25 - make it compile with threaded perls again.
26 - simplify and speed up __DIE__ and __WARN__ handling.
27
286.51 Sat Jun 25 20:57:20 CEST 2016
29 - 6.5 release didn't compile on most older perls due to
30 a logic error enabling experimental 5.24 code for all versions.
31 - since various broken or deficient patches float around
32 to work around the vtbl API breakage in perl, let's provide
33 our own workaround, which seems to be much less invasive
34 and more compatible than the approaches seen so far. YMMV.
35 - work around assertion failure in perl_destruct on 5.24
36 (analyzed by Dave Mitchell).
37
386.5 Wed Jun 22 22:23:50 CEST 2016
39 - swap_sv swapping order was not symmetrical, causing
40 wrong swaps when swap_sv was used multiple times on the
41 same sv in the same thread.
42 - swap_sv calls can now be undone by calling it again
43 with the same variables.
44 - swap_sv calls will now be undone in async_pool threads.
45 - split Coro::Semaphore::up/adjust into separate xs functions
46 for better error reporting, at slight codesize increase.
47 - (libcoro) arm assembly support, please test and report.
48 - adjust to PL_savestack changes in perl 5.24 (adapted from
49 the debian patch, which unfortunately gets it wrong).
50
516.49 Sat Oct 17 01:40:12 CEST 2015
52 - throwing an exception to a thread waiting in
53 Coro::Handle using Coro::EV did not stop the watchers,
54 causing the next call to fail (testcase by Martin Pritchard).
55 - bump minimum perl version to 5.10.
56
576.48 Sun Oct 4 19:03:51 CEST 2015
58 - fix memory leak when Coro::Handle uses Coro::EV internally
59 (testcase by Sten Sten).
60 - update code to libev 4 API (internally, Coro still used the
61 version 3 API calls).
62 - remove unused hv_sig.
63
646.47 Sat Jul 11 03:58:20 CEST 2015
65 - swap_svs - NVs can be in the SV head beginning with 5.20.
66
676.46 Tue Jun 30 14:36:30 CEST 2015
68 - restore portability to perls with windows fork emulation
69 (patch by Petr Písař).
70
716.45 Tue Jun 30 01:40:08 CEST 2015
72 - restore portability to perl 5.16 and below.
73
746.44 Tue Jun 30 00:41:54 CEST 2015
75 - avoid segfaulting (or worse) when tracing a canceled thread.
76 - the Event module silently broke it's public hook API, causing
77 failures on perls compiled with -Duselongdouble. Requiring
78 the latest version of Event because I don't know which release
79 changed this (it's not mentioned in the ChangeLog).
80 - allow xs level enterleave hooks via CoroAPI.
81
826.43 Thu Jun 4 15:38:14 CEST 2015
83 - use stability canary.
84 - port to stableperl-5.22.0-1.001.
85 - update libecb.
86
876.42 Wed Feb 11 20:29:52 CET 2015
88 - Coro::SemaphoreSet->try did not actually work (analyzed by
89 SATO Kentaro).
90 - upgrade libecb to be C11 compliant.
91
926.41 Sat Sep 6 22:08:46 CEST 2014
93 - restore portability to perl 5.8.x.
94 - give new Coro's a valid GvHV(PL_hintgv) - this is slow and takes
95 up some memory, but fixes "use feature" and similar modules
96 when used inside a Coro.
97 - allow zero as argument to Coro::Channel to mean the same thing
98 as no argument. this works with older versions as well,
99 but wasn't legal until now.
100 - slightly better c header file detection.
101
1026.39 Mon Jun 2 00:00:08 CEST 2014
103 - work around more incompatible changes in 5.20.
104
1056.38 Sun Jun 1 21:54:23 CEST 2014
106 - check that perl slots actually have enough space to hold
107 interpreter variables.
108 - untested port to perl 5.19 (64 bit tmps indices) (reported
109 by Andreas König).
110 - croak when cancel is called without a thread context.
111
1126.37 Tue Mar 4 13:27:33 CET 2014
113 - *sigh*, removed leftover debugging code from debugging a
114 perl bug, of all things.
115
1166.36 Tue Mar 4 07:11:59 CET 2014
117 - semaphores would not clear the destroy hook when interrupted
118 by ->throw, causing segfaults or worse.
119 - ->throw on a thread waiting for a semaphore did not acquire
120 the semaphore, but also didn't wake up other waiters,
121 possibly causing a deadlock.
122 - "FATAL: $Coro::IDLE blocked itself" will now use Carp::confess
123 to report a full stacktrace, which should help find out
124 where the actual call is.
125 - "atomically" destroy data in slf_destroy, because it is
126 the right thing to do, just in case.
127 - disable ecb.h libm dependency, to compile on ancient systems
128 or under adverse conditions.
129
1306.33 Mon Nov 18 11:26:27 CET 2013
131 - do not crash when freeing padlists with holes (in 5.18).
132 - tentative SVt_BIND 5.19 port/fix.
133
1346.32 Tue Nov 5 15:35:35 CET 2013
135 - use a new algorithm to derive padlists for perl 5.18. The old
136 one could lead to 0-pointer accesses inside perl (reported
137 by Darin McBride).
138
1396.31 Thu May 9 07:39:48 CEST 2013
140 - Coro::AIO requests would crash if the thread was ready'd
141 while the request was ongoing.
142
1436.29 Wed May 8 02:55:18 CEST 2013
144 - when an on_destroy handler destructs the coro currently being
145 destructed a perl scalar could be accessed after being freed,
146 likely causing a crash.
147
1486.28 Wed Mar 6 06:58:02 CET 2013
149 - clean remnants of existing __DIE__ and __WARN__ handlers so
150 they lose their magic and will not cause segfaults later
151 (testcase by Andrey Sagulin).
152 - improved Coro::State documentation a bit.
153 - Coro::Debug::command now flushes the output.
154 - add hack detection code for x32 abi, because the braindead slugs
155 who designed that made it look exactly like x86_64 without
156 providing proper compile time symbols to test for it. as a result,
157 this detection cannot work reliably.
158 - valgrind stack registering was broken.
159 - do not rely on Time::HiRes anymore in Coro::Debug.
160
1616.23 Fri Dec 7 23:36:37 CET 2012
162 - use experimental fiber implementation on native windows
163 perls.
164 - use sizeof (void *) as multiplication factor for stack sizes,
165 to accomodate the totally braindamaged microsoft 64 bit "os".
166 - changed verifier host from win2k-ap510-32 to win7-sp516-32/64.
167 activeperl 5.16 crashes when PerlIO_define_layer is called due
168 to some bug in the perl dll, strawberry perl at least passes
169 the testsuite.
170 - implement Coro::Handle->peeraddr/host/port, for slightly
171 improved compatibility with LWP.
172 - implement 5.17 compatibility by almost blindly applying a
173 good-looking patch by Father Chrysostomos.
174 - move stack management functions into libcoro 3.
175 - libcoro version 3 "released".
176 - support magic values as timed_io_once args.
177 - recommend AnyEvent 7+ or EV 4+, also require EV
178 version 4 or newer for Coro::EV.
179
1806.10 Tue Oct 9 01:14:27 CEST 2012
181 - updated ecb.h, it had a typo that caused it to not compile on many
182 big endian systems (reported by many people).
183 - disable memory fences in ecb.h to improve portability.
184
1856.09 Sat Oct 6 23:25:02 CEST 2012
186 - Coro::EV I/O watchers were not interruptible by exceptions
187 (Coro::State::throw) (testcase by sten).
188 - ->throw now puts threads into the ready queue, as this seems to
189 be expected by existing code, and code that doesn't cope with spurious
190 wakeups needs fixing anyway.
191 - use fd -1 in mmap.
192 - cast I32 to int in error message printf.
193 - warn about broken so-called "hardened" kernels.
194
1956.08 Fri Apr 13 12:05:47 CEST 2012
196 - be more aggressive about exiting like perl does - formerly,
197 exiting from the non-main thread would not execute END blocks.
198
1996.07 Fri Nov 11 21:21:48 CET 2011
200 - work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV).
201 - update ecb.h.
202
2036.06 Mon Aug 8 23:59:48 CEST 2011
204 - cygwin unfortunately patches the stack at runtime, so we use the pthreads
205 backend, which is an order of magnitude slower. unfortunately, cygwins
206 pthread implementation isn't very complete either, so allocate the stack
207 twice just to be sure.
208 (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS,
209 in its ithreaded perl - best recompile cygwin and use the 'w'indows
210 backend for much better performance. also disable ithreads for
211 even better performance...).
212
2136.05 Thu Aug 4 21:36:36 CEST 2011
214 - blush, condvar values would not be propagated from send to recv anymore
215 (reported by Chip Salzenberg).
216 - use exponential increase for the readline buffer length in
217 Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes.
218
2196.04 Wed Aug 3 17:15:45 CEST 2011
220 - use even more efficient and more compatible condvars for
221 compatibility to AnyEvent 6.x :)
222 - more inconsequential ecb.h updates.
223
2246.03 Wed Aug 3 11:41:30 CEST 2011
225 - change how Coro patches AnyEvent condvars for compatibility to
226 AnyEvent 6.x.
227 - update ecb.h, to no longer include <pthread.h> in case WinNT.h
228 hasn't been included.
229
2306.02 Wed Jul 13 04:35:19 CEST 2011
231 - "improve portability to Gentoo" - gentoo manages to put perl variables
232 in memory areas that are farther than 2gb apart, which the jit couldn't
233 handle and barfed. now it's just a bit slower on gentoo and similar
234 systems.
235
2366.01 Sun Jul 3 12:31:14 CEST 2011
237 - workarounds are good, but the test for whether pthreads are used
238 was not good. this one should be better.
239 - check differently whether gcc generates cfi instructions itself.
240
2416.0 Wed Jun 29 19:43:35 CEST 2011
242 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
243 destroyed and cleaned up automatically (e.g. async { schedule }).
244 - implement a JIT compiler for part of the thread switch code,
245 which gives a 50% speed improvement on threaded perls, and
246 about 4% on non-threaded perls (so threaded perls now finally
247 reach about half the speed of non-threaded perls).
248 - slightly modernise Coro::Intro, add section about rouse functions.
249 - avoid DEFSV and ERRSV, giving another 10% improvement
250 in thread switching.
251 - Coro::State->is_destroyed is now called is_zombie.
252 - implement a Coro->safe_cancel method that might fail, but
253 cancels in a "safer" way if it succeeds.
254 - add preliminary support for DEBUGGING perls.
255 - get rid of two hash-accesses when initialising a new Coro - this
256 speeds up coro creation by almost a factor of two.
257 - croak when a coro that is being cancelled tries to block
258 (e.g. while executing a guard block), instead of crashing or
259 deadlocking.
260 - use a more robust and also faster method to identify Coro::State
261 objects - speeds up everything a bit.
262 - implement Coro->cancel in XS for a 20% speed improvement, and to
263 be able to implement mutual cancellation.
264 - speed up context switches by a percent or two by more efficiently
265 allocating context stack entries.
266 - implement Coro->join and Coro->on_destroy in XS for a speedup and
267 a reduction in memory use.
268 - cancelling a coro while it itself is cancelling another coro is
269 now supported and working, instead of triggering an assertion.
270 - be a bit more crash-resistant when calling (buggy) on_destroy
271 callbacks (best effort).
272 - move on_destroy into the slf_frame, to allow extension slf
273 functions to have destructors.
274 - get rid if coro refcounting - simply crash in other interpreter
275 threads by nulling the pointers on clone.
276 - simplify warn/die hook handling when loading Coro - the convoluted
277 logic seems to be no longer neccessary.
278 - use libecb instead of our own home-grown gcc hacks.
279 - document alternatives to Coro::LWP. Please use them :)
280 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
281 sigaltstack. Really. wine suffers from it, erlang suffers from it,
282 and it's known since at least 2006.
283
2845.372 Wed Feb 23 06:14:30 CET 2011
285 - apparently mingw doesn't provide a working gettimeofday, try to
286 work around that by relying on Time::HiRes (indirectly brought to
287 my attention by Max Maischein).
288 - fix some portability issues when Time::HiRes was used.
289
2905.371 Mon Feb 21 14:36:08 CET 2011
291 - backport to windows process emulation code again.
292
2935.37 Sat Feb 19 07:49:44 CET 2011
294 - add a big "Coro thread life cycle" section to "man Coro".
295 - try a tentative workaround against the breakage that 5.13 has
296 introduced without depreciation period. sigh.
297 - no longer use Time::HiRes if gettimeofday is available, which
298 saves quite a lot of memory.
299
3005.36 Sun Feb 13 05:33:41 CET 2011
301 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
302 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
303 method call.
304 - undocument Coro::Timer::sleep and obsolete whole module.
305 - optimise Coro::Timer::timeout memory and cpu usage.
306 - slightly updated Coro::Intro for recent changes.
307 - do not initialise PL_dirty anymore.
308
3095.25 Thu Nov 11 01:08:39 CET 2010
310 - try a different approach on netbsd - netbsd 5 finally has marginally
311 working pthreads, but still broken ucontext/sigaltstack.
312 - openbsd 4.8 finally got their act together, Coro works out of the box
313 with asm, setjmp and pthreads (no change, just informational).
314
3155.24 Sat Oct 23 11:27:12 CEST 2010
316 - port to the EV 4.0 API.
317 - work around bugs in mingw32, making strawberry perl work
318 out of the box.
319 - correctly modify Coro::AIO function prototypes
320 so that they reflect the "no optional parameters" rule.
321 - "ported" libcoro to C++.
322
3235.23 Mon May 17 18:50:42 CEST 2010
324 - be more resistant to ordering changes when initialising
325 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
326 Waldorf).
327 - document that perl 5.12 deliberately removed support for cloning.
328
3295.22 Wed Apr 14 03:55:35 CEST 2010
330 - correctly return udnef on errors in Coro::Handle::read/write
331 (testcase by Marc Mims).
332 - convert Coro::Util into a "perl compatibility wrapper" - the functions
333 are less useful now, but are drop-in replacements for existing
334 functions, listing better alternatives in the documentation. This also
335 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
336 with Coro::Util::inet_aton.
337 - do not override $Coro::idle unconditionally in Coro.pm, as other
338 modules could have provided their own idle coro already
339 (for exmaple, Coro::AnyEvent).
340 - fix Coro::Util::gethost* functions.
341 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
342
3435.21 Wed Dec 16 07:19:51 CET 2009
344 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
345 together.
346 - add some examples on how to combine other event loops with Coro in
347 Coro::AnyEvent, and how to run it (and not to block). Seems to be
348 the most common source of confusion.
349 - try to catch people naively blocking in an event callback.
350 - work around the perl filehandle bug issue in conjunction with
351 older common::sense (as indirectly pointed out by ZSystem).
352 - clarify the "not from signal handlers" section.
353
3545.2 Sun Oct 4 14:54:24 CEST 2009
355 - Coro::Storable destroyed the prototypes of the functions it wrapped.
356 - export rouse_cb and rouse_wait by default now.
357 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
358 - new method $state->swap_sv.
359 - added section on "windows process emulation" to the manpage,
360 after a not-so-fruitful (nor-friendly) "discussion" with chip
361 salzenberg (discussion implies arguments, but his only arguments
362 were ad-hominems, one wonders why he started it in the first
363 place). I hope this explains it well enough for him to understand,
364 and maybe well enough for others to understand.
365 - use common::sense everywhere now.
366 - idle callbacks are no longer supported, use idle coros instead.
367 - print a thread listing when a deadlock is detected.
368
3695.17 Sat Aug 22 23:09:31 CEST 2009
370 - work around a bug in the perl debugger causing crashes
371 when running under the debugger by marking _pool_handler as nodebug.
372 - speed up Coro::async considerably.
373 - try some hacks to get netbsd to work "more often" - their broken
374 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
375 - convert Coro to AE 5.0 API.
376
3775.162 Tue Jul 28 04:04:03 CEST 2009
378 - perl 5.8.2 is now minimum requirement.
379 - skip t/19_handle.t on broken windows perls.
380
3815.161 Wed Jul 22 04:47:38 CEST 2009
382 - Coro::AnyEvent::poll could have a different prototype when EV was
383 used as backend (analyzed by Tatsuhiko Miyagawa).
384 - Coro::AnyEvent errornously initialised the event loop when loaded,
385 not on demand.
386 - try to workaround rare */t/01_unblock.t failures.
387
3885.16 Tue Jul 21 01:44:37 CEST 2009
389 - Coro::AnyEvent failed to hook into the event loop
390 when no threads had been readied between detecting
391 the event loop and actually running it.
392 - considerably speed up Coro::Select by taking avdantage
393 of AnyEvent > 4.8 and some other optimisations.
394 - implement paragraph readline mode in Coro::Handle
395 (based on patches by Zsbán Ambrus).
396 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
397 and analyzed by Yasuhiro MATSUMOTO).
398 - clarified libcoro license and copyright.
399 - someone stole my EXTRA_META!!!
400 - implement Coro::Select::patch_pp_sselect and it's brother,
401 for hardcode select overriding.
402
4035.151 Mon Jul 6 05:41:57 CEST 2009
404 - backport to windows process emulation code again (patch by
405 Yasuhiro MATSUMOTO).
406 - slightly update Coro::MakeMaker.
407
4085.15 Tue Jun 30 10:28:06 CEST 2009
409 - deprecate Coro::Socket, document how to get ipv6 support via
410 AnyEvent::Socket instead.
411 - implement signal->wait ($cb) interface, similar to semaphores.
412 - work around SvOK not supporting getmagic, so we have to getmagic
413 to test for undef :/ (reported by Matthias Waldorf).
414 - load Coro::AnyEvent in all modules using AnyEvent.
415 - work around perl corrupting our internal data structures,
416 reported by Tokuhiro Matsuno.
417 - enable per-coroutine real and cpu time gathering
418 (Coro::State::enable_times).
419
4205.14 Wed Jun 24 01:37:48 CEST 2009
421 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
422 as this seems to have been a difficult concept (poll, sleep, idle,
423 idle_upto).
424 - add Coro::AnyEvent::readable/writable functions.
425 - clarify Coro::EV/Event/AnyEvent manpages.
426 - free per-thread global scalars in the thread calling ->cancel, to
427 avoid crashes when $_, $@ etc., are magical but some of those
428 had already been freed.
429 - "unexperimentalise" the callback interface for Coro::Semaphore.
430 - speed up ready queue management/context switching by using a linked
431 list instead of an array (~5-10%).
432 - implement "watch" command in Coro::Debug shells.
433 - for fun, implement time-slicing as an example in the manpage.
434 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
435 Coro::Event, use the normal AnyEvent handling instead of dieing
436 (the same is true for Coro::Handle).
437 - properly document Coro::EV::timed_io_once.
438 - avoid unneccessary ->cancel calls in Coro::Handle.
439 - maybe make it work on mingw32 with win32 backend
440 (based on patch by Yasuhiro Matsumoto).
441
4425.132 Fri May 29 09:00:39 CEST 2009
443 - do not keep a reference to the argument itself in
444 Coro::Semaphore::guard, as it could change later.
445 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
446 should support a prepare callback.
447
4485.131 Mon Mar 16 23:20:37 CET 2009
449 - implement and document Coro->suspend, Coro->resume.
450 - fix Coro::Select implementation to not (often) close
451 the passed file descriptors (testcase provided by pippijn).
452
4535.13 Mon Dec 15 21:51:42 CET 2008
454 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
455 - don't set diehook to C<undef> but instead to NULL, to avoid
456 spurious warnings.
457 - fix a lot of bugs in Coro::SemaphoreSet.
458 - Coro::SemaphoreSet will less often create a semaphore needlessly.
459 - add Coro::SemaphoreSet::count and wait methods.
460 - take advantage of the new Guard module.
461 - deprecate Coro::guard.
462 - try to fix the dreaded 01_unblock tests once more. I hate it when
463 testsuites need more fixing than the code they are supposed to test.
464 - croak in more cases when a required callback isn't resolvable.
465 - fix some minor issues in Coro::State->call/eval.
466 - use current coroutine context instead of a temporary one
467 when temporarily switching to another coroutine.
468 - do not call C-level on_destroy handlers during global destruction,
469 to avoid needless segfaults.
470
4715.12 Sun Dec 7 13:30:38 CET 2008
472 - add default config for MirOS, which seems to be a bug-to-bug
473 compatible fork of openbsd ("world domination by releasing
474 openbsd cvs before the openbsd folks do it" or so :).
475 - free_padlist did destroy the names pad, not good, but didn't
476 seem to bother perl - this could fix issues such as eval ""
477 inside a function called from multiple coroutines.
478 - use a different method to detect destruction time.
479 - be more careful when freeing padlists just before global
480 destruction.
481 - fixed and expanded the call/cc example.
482 - renamed _terminate to _coro_run.
483 - new method Coro::Channel->shutdown.
484 - try pthreads on openbsd <4.4 (broken sigaltstack, will
485 pthreads fare better?).
486 - be less picky about destroying "a" running coroutine.
487
4885.11 Tue Nov 25 21:49:05 CET 2008
489 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
490 working code with failed assertions, introducing more bugs than
491 it fixes, requiring elaborate workarounds :(
492
4935.1 Mon Nov 24 08:54:59 CET 2008
494 - wrote a small introductory tutorial - Coro::Intro.
495 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
496 - Coro::Select did errornously dup the file descriptors
497 and didn't work with all AnyEvent backends.
498 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
499 LWP data transfers.
500 - disassociate c contexts from coro objects - this is agruably more
501 correct, but mostly allows sharing of cctxs between coro and state
502 objects, for added memory savings and speed increases.
503 - bumped $Coro::POOL_RSS up to 32kb by default.
504 - no longer set the optype to OP_CUSTOM, as B::* understandably
505 doesn't like this very much (and we *are* a type of entersub).
506 - implement state cloning, just to prove that call/cc can be done.
507 - automatically load Coro::AnyEvent in Coro::Handle.
508 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
509 do not have this method (and don't need it either).
510 - speed up generic anyevent methods in Coro::Handle by using rouse
511 callbacks.
512 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
513 others. It also makes the debugger happier, as you can trace
514 through the idle threads now.
515 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
516 - eg/event was pretty broken.
517 - better 5.8.6 compatibility.
518
5195.0 Thu Nov 20 10:35:05 CET 2008
15 - NEW ARCHITECTURE: use the latest 4.x version if you experience 520 - NEW ARCHITECTURE: use the latest 4.x version if you experience
16 stability issues. 521 stability issues.
17 - bump API version to 7 - all dependents must be recompiled. 522 - bump API version to 7 - all dependents must be recompiled.
523 - removed timed_* functions - they were not being used anyways
524 and should be replaced by a more generic mechanism -
525 and were annoying to support anyways :)
526 - removed SemaphoreSet's waiter method - use sem method instead.
18 - Coro::Semaphore->adjust didn't correctly wake up enough waiters. 527 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
19 - async_pool did free a scalar value twice 528 - async_pool did free a scalar value twice
20 ("Attempt to unreference..."). 529 ("Attempt to unreference...").
21 - fix a longstanding bug where calling terminate on a coro that 530 - fix a longstanding bug where calling terminate on a coro that
22 was waiting for a semaphore that was just becoming available 531 was waiting for a semaphore that was just becoming available
23 would cause a deadlock (semaphore would get into a state where 532 would cause a deadlock (semaphore would get into a state where
24 it was available but waiters were waiting(. 533 it was available but waiters were still blocked).
25 - avoid deadlock in Coro::Channel if maxsize == 1 (Richard Hundt). 534 - calling throw on a coroutine that is waiting for a semaphore will
535 no longer make it acquire the semaphore (and thus leak a count).
26 - perl's process emulation is now not even theoretically supported 536 - perl's process emulation is now not even theoretically supported
27 anymore. 537 anymore.
538 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
539 conversion of callback-style to blocking-style.
540 - new methods $coro->schedule_to and ->cede_to, to specifically
541 schedule or cede to a specific coroutine.
542 - new function Coro::Semaphore::wait.
543 - use named constants in Coro::Channel (Richard Hundt).
28 - directly patch the entersub opcode calling SLF functions (cede, 544 - directly patch the entersub opcode calling SLF functions (cede,
29 transfer and so on). this does speed up context switching, but 545 transfer and so on). this does speed up context switching, but
30 more importanly, it frees us from the hardcoded behaviour of 546 more importanly, it frees us from the hardcoded behaviour of
31 entersub, so we might actually be able to return something from 547 entersub, so we might actually be able to return something from
32 those functions and atcually create new ones. 548 those functions and atcually create new ones.
… …
35 as "threaded" perls are running at half speed anyways). 551 as "threaded" perls are running at half speed anyways).
36 - implement execute_slf (schedule-like-function) interface that makes 552 - implement execute_slf (schedule-like-function) interface that makes
37 it possible to implement schedule-like-functions in XS. 553 it possible to implement schedule-like-functions in XS.
38 - use new SLF interface to massively speed up Coro::EV by roughly a 554 - use new SLF interface to massively speed up Coro::EV by roughly a
39 factor of two. 555 factor of two.
40 - removed timed_down and timed_guard functions - they were not being
41 used anyways and should be replaced by a more generic mechanism -
42 and were annoying to support anyways :)
43 - used new SLF interface to massively speed up Coro::Semaphore by a 556 - used new SLF interface to massively speed up Coro::Semaphore by a
44 factor of three. 557 factor of three.
45 - used new SLF interface to speed up Coro::AIO by roughly a factor of 558 - used new SLF interface to speed up Coro::AIO by roughly a factor of
46 four and reduce its memory usage considerably. 559 four and reduce its memory usage considerably.
560 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
561 for a nice speedup and vastly more correct behaviour. Also implement
562 a new method "sem" to get at the underlying semaphore object.
563 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
564 (in comparison) 20-40% speedup.
565 - used new SLF interface to reimplement Coro::Signal gaining
566 some unknown (because I was too lazy), but certain, speedup, and also
567 making signals reliable for the first time.
568 - used new SLF interface and other optimisations to speed up async_pool
569 by a factor of two. It also doesn't rely on perl's exception mechanism
570 to exit anymore. The overhead for terminating an async_pool, coro over
571 a normal async is now very small.
572 - sped up coroutine creation/destruction by 40%.
47 - forgot to include Coro/libcoro/README in the dist for all these years. 573 - forgot to include Coro/libcoro/README in the dist for all these years.
48 - work around a freebsd pthreads bug (manual testcancel is required as 574 - work around a freebsd pthreads bug (manual testcancel is required as
49 pthread_cond_wait isn't a cancellation point on freebsd). 575 pthread_cond_wait isn't a cancellation point on freebsd).
576 - use new rouse functions to speed up and simplify Coro::BDB.
577 - make "prefer perl native functions" work with threaded perls.
578 - condense Coro::Debug ps output, hint at v and w flags.
579 - (libcoro) lots of minor cleanups and portability improvements.
580
5814.914 Wed Nov 19 12:54:18 CET 2008
582 - fix a disastrous bug in the readline optimisation
583 introduced in 4.801.
50 584
514.913 Sat Nov 15 07:58:28 CET 2008 5854.913 Sat Nov 15 07:58:28 CET 2008
52 - async_pool did free a scalar value twice 586 - async_pool did free a scalar value twice
53 ("Attempt to unreference..."). 587 ("Attempt to unreference...").
54 588
… …
71 - ->throw is now supported on Coro::State objects. 605 - ->throw is now supported on Coro::State objects.
72 - clean up cctx creation code a bit. 606 - clean up cctx creation code a bit.
73 - entersub is actually a UNOP, not a LOGOP (not a bugfix). 607 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
74 608
754.9 Sat Nov 8 17:45:27 CET 2008 6094.9 Sat Nov 8 17:45:27 CET 2008
76 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there). 610 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
77 - (libcoro) no longer leak threads in the experimental pthread backend, 611 - (libcoro) no longer leak threads in the experimental pthread backend,
78 also speed it up considerably. 612 also speed it up considerably.
79 - (libcoro) do not rely on makecontext passing void *'s unscathed. 613 - (libcoro) do not rely on makecontext passing void *'s unscathed.
80 - fix compiletime dependencies on libcoro in the Makefile. 614 - fix compiletime dependencies on libcoro in the Makefile.
81 - cctx_count wasn't always updated properly. 615 - cctx_count wasn't always updated properly.
… …
143 - remove debugging code related to MgPV_nolen_const, also try to 677 - remove debugging code related to MgPV_nolen_const, also try to
144 make it compile with perl 5.8.6 (yes, apple apparently loves 678 make it compile with perl 5.8.6 (yes, apple apparently loves
145 outdated software). Reported by John S. 679 outdated software). Reported by John S.
146 680
1474.744 Tue Jul 8 22:06:35 CEST 2008 6814.744 Tue Jul 8 22:06:35 CEST 2008
148 - correctly provide default DIE/WARN handlers as documented. 682 - correctly provide default DIE/WARN handlers as documented.
149 - also overwrite PL_vtbl_sigelem.svt_clear, even though current 683 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
150 implementations inside perl work fine for us. 684 implementations inside perl work fine for us.
151 685
1524.743 Mon Jun 16 00:21:57 CEST 2008 6864.743 Mon Jun 16 00:21:57 CEST 2008
153 - when using Coro::EV without running EV::loop it could 687 - when using Coro::EV without running EV::loop it could
… …
175 - sprinkle "no warnings" freely over everything, also suppress 709 - sprinkle "no warnings" freely over everything, also suppress
176 warnings for some other modules. 710 warnings for some other modules.
177 - fix typo in WSAEWOULDBLOCK. 711 - fix typo in WSAEWOULDBLOCK.
178 712
1794.72 Sun May 25 05:14:36 CEST 2008 7134.72 Sun May 25 05:14:36 CEST 2008
180 - tweak META.yaml a bit, unfortunately, there is no documented way 714 - tweak META.yaml a bit, unfortunately, there is no documented way
181 to have optional dependencies with CPAN. doh :( 715 to have optional dependencies with CPAN. doh :(
182 - avoid running some tests on windows because they would fail due to 716 - avoid running some tests on windows because they would fail due to
183 perl bug (broken fork, broken pipes...). 717 perl bug (broken fork, broken pipes...).
184 - work around perl on windows bugs where perl returns undocumented 718 - work around perl on windows bugs where perl returns undocumented
185 error codes for sysread, syswrite etc. by taking advantage 719 error codes for sysread, syswrite etc. by taking advantage
… …
189 - use unix domain sockets in testsuite to work around 723 - use unix domain sockets in testsuite to work around
190 common perl implementation bugs on widows (they are emulated by 724 common perl implementation bugs on widows (they are emulated by
191 tcp sockets on windows. ugh.) 725 tcp sockets on windows. ugh.)
192 726
1934.71 Sat May 24 20:01:27 CEST 2008 7274.71 Sat May 24 20:01:27 CEST 2008
194 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()"). 728 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
195 - take advantage of async name resolution of AnyEvent::Util. 729 - take advantage of async name resolution of AnyEvent::Util.
196 - work around brutal inet_aton override in Coro::LWP. 730 - work around brutal inet_aton override in Coro::LWP.
197 - take advantage of the readyhook in Coro::EV, for smoother 731 - take advantage of the readyhook in Coro::EV, for smoother
198 scheduling. 732 scheduling.
199 733
2004.7 Sun May 11 00:32:19 CEST 2008 7344.7 Sun May 11 00:32:19 CEST 2008
201 - completely reworked the Coro manpage. 735 - completely reworked the Coro manpage.
202 - added Coro::AnyEvent, generic event loop integration. 736 - added Coro::AnyEvent, generic event loop integration.
203 - implement cancel, ready and kill commands in Coro::Debug. 737 - implement cancel, ready and kill commands in Coro::Debug.
204 - document find_coro in Coro::Debug. 738 - document find_coro in Coro::Debug.
205 - incompatible change: rename has_stack to has_cctx. 739 - incompatible change: rename has_stack to has_cctx.
206 - Coro::AIO and Coro::BDB no longer force event model detection, 740 - Coro::AIO and Coro::BDB no longer force event model detection,
207 use AnyEvent::AIO and AnyEvent::BDB. 741 use AnyEvent::AIO and AnyEvent::BDB.
… …
331 865
3324.11 Thu Oct 11 02:40:24 CEST 2007 8664.11 Thu Oct 11 02:40:24 CEST 2007
333 - port to threaded perls. 867 - port to threaded perls.
334 868
3354.1 Thu Oct 11 02:38:16 CEST 2007 8694.1 Thu Oct 11 02:38:16 CEST 2007
336 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now 870 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
337 be local to each coro (see Coro::State). 871 be local to each coro (see Coro::State).
338 - incompatible change: for very deep reasons, cede and cede_notself 872 - incompatible change: for very deep reasons, cede and cede_notself
339 cannot return anything, so nothing will be returned. 873 cannot return anything, so nothing will be returned.
340 - possibly bring back 5.10 compatibility (untested). 874 - possibly bring back 5.10 compatibility (untested).
341 - work around stupid (and wrong) warning on 5.10 :(. 875 - work around stupid (and wrong) warning on 5.10 :(.
… …
413 but stateful semantics. 947 but stateful semantics.
414 - fixed a lot of typos in Coro.pm (patch submitted by David 948 - fixed a lot of typos in Coro.pm (patch submitted by David
415 Steinbrunner, which applied flawlessly). 949 Steinbrunner, which applied flawlessly).
416 950
4173.6 Sat Apr 14 17:13:31 CEST 2007 9513.6 Sat Apr 14 17:13:31 CEST 2007
418 - added some bugfixes to get eg/myhttpd working again. 952 - added some bugfixes to get eg/myhttpd working again.
419 - added Coro::Storable for often-cede'ing freeze/thaw. 953 - added Coro::Storable for often-cede'ing freeze/thaw.
420 - try to do a clean exit when a coroutine calls exit 954 - try to do a clean exit when a coroutine calls exit
421 (EXPERIMENTAL). 955 (EXPERIMENTAL).
422 - got rid of indirect call through _coro_init. 956 - got rid of indirect call through _coro_init.
423 - updated the partly antique examples in eg/ to 957 - updated the partly antique examples in eg/ to

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