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Comparing Coro/Changes (file contents):
Revision 1.363 by root, Mon Jul 21 02:39:15 2008 UTC vs.
Revision 1.665 by root, Fri Jul 14 02:51:11 2017 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
9 - seems to pass test suite down till 5.8.9, so make this the
10 minimum requirement in Makefile.PL.
11 - experimental 5.24 compatibility changes (SUB_ARGARRAY).
12 - experimental 5.26 compatibility changes (PL_comppad -> PADOFFSET).
13 - re-try JIT allocation without PROT_EXEC, to hopefully improve
14 portability.
15
166.511 Sun Jun 26 23:44:50 CEST 2016
17 - make it compile with threaded perls again.
18 - simplify and speed up __DIE__ and __WARN__ handling.
19
206.51 Sat Jun 25 20:57:20 CEST 2016
21 - 6.5 release didn't compile on most older perls due to
22 a logic error enabling experimental 5.24 code for all versions.
23 - since various broken or deficient patches float around
24 to work around the vtbl API breakage in perl, let's provide
25 our own workaround, which seems to be much less invasive
26 and more compatible than the approaches seen so far. YMMV.
27 - work around assertion failure in perl_destruct on 5.24
28 (analyzed by Dave Mitchell).
29
306.5 Wed Jun 22 22:23:50 CEST 2016
31 - swap_sv swapping order was not symmetrical, causing
32 wrong swaps when swap_sv was used multiple times on the
33 same sv in the same thread.
34 - swap_sv calls can now be undone by calling it again
35 with the same variables.
36 - swap_sv calls will now be undone in async_pool threads.
37 - split Coro::Semaphore::up/adjust into separate xs functions
38 for better error reporting, at slight codesize increase.
39 - (libcoro) arm assembly support, please test and report.
40 - adjust to PL_savestack changes in perl 5.24 (adapted from
41 the debian patch, which unfortunately gets it wrong).
42
436.49 Sat Oct 17 01:40:12 CEST 2015
44 - throwing an exception to a thread waiting in
45 Coro::Handle using Coro::EV did not stop the watchers,
46 causing the next call to fail (testcase by Martin Pritchard).
47 - bump minimum perl version to 5.10.
48
496.48 Sun Oct 4 19:03:51 CEST 2015
50 - fix memory leak when Coro::Handle uses Coro::EV internally
51 (testcase by Sten Sten).
52 - update code to libev 4 API (internally, Coro still used the
53 version 3 API calls).
54 - remove unused hv_sig.
55
566.47 Sat Jul 11 03:58:20 CEST 2015
57 - swap_svs - NVs can be in the SV head beginning with 5.20.
58
596.46 Tue Jun 30 14:36:30 CEST 2015
60 - restore portability to perls with windows fork emulation
61 (patch by Petr Písař).
62
636.45 Tue Jun 30 01:40:08 CEST 2015
64 - restore portability to perl 5.16 and below.
65
666.44 Tue Jun 30 00:41:54 CEST 2015
67 - avoid segfaulting (or worse) when tracing a canceled thread.
68 - the Event module silently broke it's public hook API, causing
69 failures on perls compiled with -Duselongdouble. Requiring
70 the latest version of Event because I don't know which release
71 changed this (it's not mentioned in the ChangeLog).
72 - allow xs level enterleave hooks via CoroAPI.
73
746.43 Thu Jun 4 15:38:14 CEST 2015
75 - use stability canary.
76 - port to stableperl-5.22.0-1.001.
77 - update libecb.
78
796.42 Wed Feb 11 20:29:52 CET 2015
80 - Coro::SemaphoreSet->try did not actually work (analyzed by
81 SATO Kentaro).
82 - upgrade libecb to be C11 compliant.
83
846.41 Sat Sep 6 22:08:46 CEST 2014
85 - restore portability to perl 5.8.x.
86 - give new Coro's a valid GvHV(PL_hintgv) - this is slow and takes
87 up some memory, but fixes "use feature" and similar modules
88 when used inside a Coro.
89 - allow zero as argument to Coro::Channel to mean the same thing
90 as no argument. this works with older versions as well,
91 but wasn't legal until now.
92 - slightly better c header file detection.
93
946.39 Mon Jun 2 00:00:08 CEST 2014
95 - work around more incompatible changes in 5.20.
96
976.38 Sun Jun 1 21:54:23 CEST 2014
98 - check that perl slots actually have enough space to hold
99 interpreter variables.
100 - untested port to perl 5.19 (64 bit tmps indices) (reported
101 by Andreas König).
102 - croak when cancel is called without a thread context.
103
1046.37 Tue Mar 4 13:27:33 CET 2014
105 - *sigh*, removed leftover debugging code from debugging a
106 perl bug, of all things.
107
1086.36 Tue Mar 4 07:11:59 CET 2014
109 - semaphores would not clear the destroy hook when interrupted
110 by ->throw, causing segfaults or worse.
111 - ->throw on a thread waiting for a semaphore did not acquire
112 the semaphore, but also didn't wake up other waiters,
113 possibly causing a deadlock.
114 - "FATAL: $Coro::IDLE blocked itself" will now use Carp::confess
115 to report a full stacktrace, which should help find out
116 where the actual call is.
117 - "atomically" destroy data in slf_destroy, because it is
118 the right thing to do, just in case.
119 - disable ecb.h libm dependency, to compile on ancient systems
120 or under adverse conditions.
121
1226.33 Mon Nov 18 11:26:27 CET 2013
123 - do not crash when freeing padlists with holes (in 5.18).
124 - tentative SVt_BIND 5.19 port/fix.
125
1266.32 Tue Nov 5 15:35:35 CET 2013
127 - use a new algorithm to derive padlists for perl 5.18. The old
128 one could lead to 0-pointer accesses inside perl (reported
129 by Darin McBride).
130
1316.31 Thu May 9 07:39:48 CEST 2013
132 - Coro::AIO requests would crash if the thread was ready'd
133 while the request was ongoing.
134
1356.29 Wed May 8 02:55:18 CEST 2013
136 - when an on_destroy handler destructs the coro currently being
137 destructed a perl scalar could be accessed after being freed,
138 likely causing a crash.
139
1406.28 Wed Mar 6 06:58:02 CET 2013
141 - clean remnants of existing __DIE__ and __WARN__ handlers so
142 they lose their magic and will not cause segfaults later
143 (testcase by Andrey Sagulin).
144 - improved Coro::State documentation a bit.
145 - Coro::Debug::command now flushes the output.
146 - add hack detection code for x32 abi, because the braindead slugs
147 who designed that made it look exactly like x86_64 without
148 providing proper compile time symbols to test for it. as a result,
149 this detection cannot work reliably.
150 - valgrind stack registering was broken.
151 - do not rely on Time::HiRes anymore in Coro::Debug.
152
1536.23 Fri Dec 7 23:36:37 CET 2012
154 - use experimental fiber implementation on native windows
155 perls.
156 - use sizeof (void *) as multiplication factor for stack sizes,
157 to accomodate the totally braindamaged microsoft 64 bit "os".
158 - changed verifier host from win2k-ap510-32 to win7-sp516-32/64.
159 activeperl 5.16 crashes when PerlIO_define_layer is called due
160 to some bug in the perl dll, strawberry perl at least passes
161 the testsuite.
162 - implement Coro::Handle->peeraddr/host/port, for slightly
163 improved compatibility with LWP.
164 - implement 5.17 compatibility by almost blindly applying a
165 good-looking patch by Father Chrysostomos.
166 - move stack management functions into libcoro 3.
167 - libcoro version 3 "released".
168 - support magic values as timed_io_once args.
169 - recommend AnyEvent 7+ or EV 4+, also require EV
170 version 4 or newer for Coro::EV.
171
1726.10 Tue Oct 9 01:14:27 CEST 2012
173 - updated ecb.h, it had a typo that caused it to not compile on many
174 big endian systems (reported by many people).
175 - disable memory fences in ecb.h to improve portability.
176
1776.09 Sat Oct 6 23:25:02 CEST 2012
178 - Coro::EV I/O watchers were not interruptible by exceptions
179 (Coro::State::throw) (testcase by sten).
180 - ->throw now puts threads into the ready queue, as this seems to
181 be expected by existing code, and code that doesn't cope with spurious
182 wakeups needs fixing anyway.
183 - use fd -1 in mmap.
184 - cast I32 to int in error message printf.
185 - warn about broken so-called "hardened" kernels.
186
1876.08 Fri Apr 13 12:05:47 CEST 2012
188 - be more aggressive about exiting like perl does - formerly,
189 exiting from the non-main thread would not execute END blocks.
190
1916.07 Fri Nov 11 21:21:48 CET 2011
192 - work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV).
193 - update ecb.h.
194
1956.06 Mon Aug 8 23:59:48 CEST 2011
196 - cygwin unfortunately patches the stack at runtime, so we use the pthreads
197 backend, which is an order of magnitude slower. unfortunately, cygwins
198 pthread implementation isn't very complete either, so allocate the stack
199 twice just to be sure.
200 (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS,
201 in its ithreaded perl - best recompile cygwin and use the 'w'indows
202 backend for much better performance. also disable ithreads for
203 even better performance...).
204
2056.05 Thu Aug 4 21:36:36 CEST 2011
206 - blush, condvar values would not be propagated from send to recv anymore
207 (reported by Chip Salzenberg).
208 - use exponential increase for the readline buffer length in
209 Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes.
210
2116.04 Wed Aug 3 17:15:45 CEST 2011
212 - use even more efficient and more compatible condvars for
213 compatibility to AnyEvent 6.x :)
214 - more inconsequential ecb.h updates.
215
2166.03 Wed Aug 3 11:41:30 CEST 2011
217 - change how Coro patches AnyEvent condvars for compatibility to
218 AnyEvent 6.x.
219 - update ecb.h, to no longer include <pthread.h> in case WinNT.h
220 hasn't been included.
221
2226.02 Wed Jul 13 04:35:19 CEST 2011
223 - "improve portability to Gentoo" - gentoo manages to put perl variables
224 in memory areas that are farther than 2gb apart, which the jit couldn't
225 handle and barfed. now it's just a bit slower on gentoo and similar
226 systems.
227
2286.01 Sun Jul 3 12:31:14 CEST 2011
229 - workarounds are good, but the test for whether pthreads are used
230 was not good. this one should be better.
231 - check differently whether gcc generates cfi instructions itself.
232
2336.0 Wed Jun 29 19:43:35 CEST 2011
234 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
235 destroyed and cleaned up automatically (e.g. async { schedule }).
236 - implement a JIT compiler for part of the thread switch code,
237 which gives a 50% speed improvement on threaded perls, and
238 about 4% on non-threaded perls (so threaded perls now finally
239 reach about half the speed of non-threaded perls).
240 - slightly modernise Coro::Intro, add section about rouse functions.
241 - avoid DEFSV and ERRSV, giving another 10% improvement
242 in thread switching.
243 - Coro::State->is_destroyed is now called is_zombie.
244 - implement a Coro->safe_cancel method that might fail, but
245 cancels in a "safer" way if it succeeds.
246 - add preliminary support for DEBUGGING perls.
247 - get rid of two hash-accesses when initialising a new Coro - this
248 speeds up coro creation by almost a factor of two.
249 - croak when a coro that is being cancelled tries to block
250 (e.g. while executing a guard block), instead of crashing or
251 deadlocking.
252 - use a more robust and also faster method to identify Coro::State
253 objects - speeds up everything a bit.
254 - implement Coro->cancel in XS for a 20% speed improvement, and to
255 be able to implement mutual cancellation.
256 - speed up context switches by a percent or two by more efficiently
257 allocating context stack entries.
258 - implement Coro->join and Coro->on_destroy in XS for a speedup and
259 a reduction in memory use.
260 - cancelling a coro while it itself is cancelling another coro is
261 now supported and working, instead of triggering an assertion.
262 - be a bit more crash-resistant when calling (buggy) on_destroy
263 callbacks (best effort).
264 - move on_destroy into the slf_frame, to allow extension slf
265 functions to have destructors.
266 - get rid if coro refcounting - simply crash in other interpreter
267 threads by nulling the pointers on clone.
268 - simplify warn/die hook handling when loading Coro - the convoluted
269 logic seems to be no longer neccessary.
270 - use libecb instead of our own home-grown gcc hacks.
271 - document alternatives to Coro::LWP. Please use them :)
272 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
273 sigaltstack. Really. wine suffers from it, erlang suffers from it,
274 and it's known since at least 2006.
275
2765.372 Wed Feb 23 06:14:30 CET 2011
277 - apparently mingw doesn't provide a working gettimeofday, try to
278 work around that by relying on Time::HiRes (indirectly brought to
279 my attention by Max Maischein).
280 - fix some portability issues when Time::HiRes was used.
281
2825.371 Mon Feb 21 14:36:08 CET 2011
283 - backport to windows process emulation code again.
284
2855.37 Sat Feb 19 07:49:44 CET 2011
286 - add a big "Coro thread life cycle" section to "man Coro".
287 - try a tentative workaround against the breakage that 5.13 has
288 introduced without depreciation period. sigh.
289 - no longer use Time::HiRes if gettimeofday is available, which
290 saves quite a lot of memory.
291
2925.36 Sun Feb 13 05:33:41 CET 2011
293 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
294 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
295 method call.
296 - undocument Coro::Timer::sleep and obsolete whole module.
297 - optimise Coro::Timer::timeout memory and cpu usage.
298 - slightly updated Coro::Intro for recent changes.
299 - do not initialise PL_dirty anymore.
300
3015.25 Thu Nov 11 01:08:39 CET 2010
302 - try a different approach on netbsd - netbsd 5 finally has marginally
303 working pthreads, but still broken ucontext/sigaltstack.
304 - openbsd 4.8 finally got their act together, Coro works out of the box
305 with asm, setjmp and pthreads (no change, just informational).
306
3075.24 Sat Oct 23 11:27:12 CEST 2010
308 - port to the EV 4.0 API.
309 - work around bugs in mingw32, making strawberry perl work
310 out of the box.
311 - correctly modify Coro::AIO function prototypes
312 so that they reflect the "no optional parameters" rule.
313 - "ported" libcoro to C++.
314
3155.23 Mon May 17 18:50:42 CEST 2010
316 - be more resistant to ordering changes when initialising
317 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
318 Waldorf).
319 - document that perl 5.12 deliberately removed support for cloning.
320
3215.22 Wed Apr 14 03:55:35 CEST 2010
322 - correctly return udnef on errors in Coro::Handle::read/write
323 (testcase by Marc Mims).
324 - convert Coro::Util into a "perl compatibility wrapper" - the functions
325 are less useful now, but are drop-in replacements for existing
326 functions, listing better alternatives in the documentation. This also
327 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
328 with Coro::Util::inet_aton.
329 - do not override $Coro::idle unconditionally in Coro.pm, as other
330 modules could have provided their own idle coro already
331 (for exmaple, Coro::AnyEvent).
332 - fix Coro::Util::gethost* functions.
333 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
334
3355.21 Wed Dec 16 07:19:51 CET 2009
336 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
337 together.
338 - add some examples on how to combine other event loops with Coro in
339 Coro::AnyEvent, and how to run it (and not to block). Seems to be
340 the most common source of confusion.
341 - try to catch people naively blocking in an event callback.
342 - work around the perl filehandle bug issue in conjunction with
343 older common::sense (as indirectly pointed out by ZSystem).
344 - clarify the "not from signal handlers" section.
345
3465.2 Sun Oct 4 14:54:24 CEST 2009
347 - Coro::Storable destroyed the prototypes of the functions it wrapped.
348 - export rouse_cb and rouse_wait by default now.
349 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
350 - new method $state->swap_sv.
351 - added section on "windows process emulation" to the manpage,
352 after a not-so-fruitful (nor-friendly) "discussion" with chip
353 salzenberg (discussion implies arguments, but his only arguments
354 were ad-hominems, one wonders why he started it in the first
355 place). I hope this explains it well enough for him to understand,
356 and maybe well enough for others to understand.
357 - use common::sense everywhere now.
358 - idle callbacks are no longer supported, use idle coros instead.
359 - print a thread listing when a deadlock is detected.
360
3615.17 Sat Aug 22 23:09:31 CEST 2009
362 - work around a bug in the perl debugger causing crashes
363 when running under the debugger by marking _pool_handler as nodebug.
364 - speed up Coro::async considerably.
365 - try some hacks to get netbsd to work "more often" - their broken
366 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
367 - convert Coro to AE 5.0 API.
368
3695.162 Tue Jul 28 04:04:03 CEST 2009
370 - perl 5.8.2 is now minimum requirement.
371 - skip t/19_handle.t on broken windows perls.
372
3735.161 Wed Jul 22 04:47:38 CEST 2009
374 - Coro::AnyEvent::poll could have a different prototype when EV was
375 used as backend (analyzed by Tatsuhiko Miyagawa).
376 - Coro::AnyEvent errornously initialised the event loop when loaded,
377 not on demand.
378 - try to workaround rare */t/01_unblock.t failures.
379
3805.16 Tue Jul 21 01:44:37 CEST 2009
381 - Coro::AnyEvent failed to hook into the event loop
382 when no threads had been readied between detecting
383 the event loop and actually running it.
384 - considerably speed up Coro::Select by taking avdantage
385 of AnyEvent > 4.8 and some other optimisations.
386 - implement paragraph readline mode in Coro::Handle
387 (based on patches by Zsbán Ambrus).
388 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
389 and analyzed by Yasuhiro MATSUMOTO).
390 - clarified libcoro license and copyright.
391 - someone stole my EXTRA_META!!!
392 - implement Coro::Select::patch_pp_sselect and it's brother,
393 for hardcode select overriding.
394
3955.151 Mon Jul 6 05:41:57 CEST 2009
396 - backport to windows process emulation code again (patch by
397 Yasuhiro MATSUMOTO).
398 - slightly update Coro::MakeMaker.
399
4005.15 Tue Jun 30 10:28:06 CEST 2009
401 - deprecate Coro::Socket, document how to get ipv6 support via
402 AnyEvent::Socket instead.
403 - implement signal->wait ($cb) interface, similar to semaphores.
404 - work around SvOK not supporting getmagic, so we have to getmagic
405 to test for undef :/ (reported by Matthias Waldorf).
406 - load Coro::AnyEvent in all modules using AnyEvent.
407 - work around perl corrupting our internal data structures,
408 reported by Tokuhiro Matsuno.
409 - enable per-coroutine real and cpu time gathering
410 (Coro::State::enable_times).
411
4125.14 Wed Jun 24 01:37:48 CEST 2009
413 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
414 as this seems to have been a difficult concept (poll, sleep, idle,
415 idle_upto).
416 - add Coro::AnyEvent::readable/writable functions.
417 - clarify Coro::EV/Event/AnyEvent manpages.
418 - free per-thread global scalars in the thread calling ->cancel, to
419 avoid crashes when $_, $@ etc., are magical but some of those
420 had already been freed.
421 - "unexperimentalise" the callback interface for Coro::Semaphore.
422 - speed up ready queue management/context switching by using a linked
423 list instead of an array (~5-10%).
424 - implement "watch" command in Coro::Debug shells.
425 - for fun, implement time-slicing as an example in the manpage.
426 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
427 Coro::Event, use the normal AnyEvent handling instead of dieing
428 (the same is true for Coro::Handle).
429 - properly document Coro::EV::timed_io_once.
430 - avoid unneccessary ->cancel calls in Coro::Handle.
431 - maybe make it work on mingw32 with win32 backend
432 (based on patch by Yasuhiro Matsumoto).
433
4345.132 Fri May 29 09:00:39 CEST 2009
435 - do not keep a reference to the argument itself in
436 Coro::Semaphore::guard, as it could change later.
437 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
438 should support a prepare callback.
439
4405.131 Mon Mar 16 23:20:37 CET 2009
441 - implement and document Coro->suspend, Coro->resume.
442 - fix Coro::Select implementation to not (often) close
443 the passed file descriptors (testcase provided by pippijn).
444
4455.13 Mon Dec 15 21:51:42 CET 2008
446 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
447 - don't set diehook to C<undef> but instead to NULL, to avoid
448 spurious warnings.
449 - fix a lot of bugs in Coro::SemaphoreSet.
450 - Coro::SemaphoreSet will less often create a semaphore needlessly.
451 - add Coro::SemaphoreSet::count and wait methods.
452 - take advantage of the new Guard module.
453 - deprecate Coro::guard.
454 - try to fix the dreaded 01_unblock tests once more. I hate it when
455 testsuites need more fixing than the code they are supposed to test.
456 - croak in more cases when a required callback isn't resolvable.
457 - fix some minor issues in Coro::State->call/eval.
458 - use current coroutine context instead of a temporary one
459 when temporarily switching to another coroutine.
460 - do not call C-level on_destroy handlers during global destruction,
461 to avoid needless segfaults.
462
4635.12 Sun Dec 7 13:30:38 CET 2008
464 - add default config for MirOS, which seems to be a bug-to-bug
465 compatible fork of openbsd ("world domination by releasing
466 openbsd cvs before the openbsd folks do it" or so :).
467 - free_padlist did destroy the names pad, not good, but didn't
468 seem to bother perl - this could fix issues such as eval ""
469 inside a function called from multiple coroutines.
470 - use a different method to detect destruction time.
471 - be more careful when freeing padlists just before global
472 destruction.
473 - fixed and expanded the call/cc example.
474 - renamed _terminate to _coro_run.
475 - new method Coro::Channel->shutdown.
476 - try pthreads on openbsd <4.4 (broken sigaltstack, will
477 pthreads fare better?).
478 - be less picky about destroying "a" running coroutine.
479
4805.11 Tue Nov 25 21:49:05 CET 2008
481 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
482 working code with failed assertions, introducing more bugs than
483 it fixes, requiring elaborate workarounds :(
484
4855.1 Mon Nov 24 08:54:59 CET 2008
486 - wrote a small introductory tutorial - Coro::Intro.
487 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
488 - Coro::Select did errornously dup the file descriptors
489 and didn't work with all AnyEvent backends.
490 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
491 LWP data transfers.
492 - disassociate c contexts from coro objects - this is agruably more
493 correct, but mostly allows sharing of cctxs between coro and state
494 objects, for added memory savings and speed increases.
495 - bumped $Coro::POOL_RSS up to 32kb by default.
496 - no longer set the optype to OP_CUSTOM, as B::* understandably
497 doesn't like this very much (and we *are* a type of entersub).
498 - implement state cloning, just to prove that call/cc can be done.
499 - automatically load Coro::AnyEvent in Coro::Handle.
500 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
501 do not have this method (and don't need it either).
502 - speed up generic anyevent methods in Coro::Handle by using rouse
503 callbacks.
504 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
505 others. It also makes the debugger happier, as you can trace
506 through the idle threads now.
507 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
508 - eg/event was pretty broken.
509 - better 5.8.6 compatibility.
510
5115.0 Thu Nov 20 10:35:05 CET 2008
512 - NEW ARCHITECTURE: use the latest 4.x version if you experience
513 stability issues.
514 - bump API version to 7 - all dependents must be recompiled.
515 - removed timed_* functions - they were not being used anyways
516 and should be replaced by a more generic mechanism -
517 and were annoying to support anyways :)
518 - removed SemaphoreSet's waiter method - use sem method instead.
519 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
520 - async_pool did free a scalar value twice
521 ("Attempt to unreference...").
522 - fix a longstanding bug where calling terminate on a coro that
523 was waiting for a semaphore that was just becoming available
524 would cause a deadlock (semaphore would get into a state where
525 it was available but waiters were still blocked).
526 - calling throw on a coroutine that is waiting for a semaphore will
527 no longer make it acquire the semaphore (and thus leak a count).
528 - perl's process emulation is now not even theoretically supported
529 anymore.
530 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
531 conversion of callback-style to blocking-style.
532 - new methods $coro->schedule_to and ->cede_to, to specifically
533 schedule or cede to a specific coroutine.
534 - new function Coro::Semaphore::wait.
535 - use named constants in Coro::Channel (Richard Hundt).
536 - directly patch the entersub opcode calling SLF functions (cede,
537 transfer and so on). this does speed up context switching, but
538 more importanly, it frees us from the hardcoded behaviour of
539 entersub, so we might actually be able to return something from
540 those functions and atcually create new ones.
541 - take advantage of __builtin_frame_address on gcc.
542 - expose THX in coroapi (not sure whether this was a wise decision,
543 as "threaded" perls are running at half speed anyways).
544 - implement execute_slf (schedule-like-function) interface that makes
545 it possible to implement schedule-like-functions in XS.
546 - use new SLF interface to massively speed up Coro::EV by roughly a
547 factor of two.
548 - used new SLF interface to massively speed up Coro::Semaphore by a
549 factor of three.
550 - used new SLF interface to speed up Coro::AIO by roughly a factor of
551 four and reduce its memory usage considerably.
552 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
553 for a nice speedup and vastly more correct behaviour. Also implement
554 a new method "sem" to get at the underlying semaphore object.
555 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
556 (in comparison) 20-40% speedup.
557 - used new SLF interface to reimplement Coro::Signal gaining
558 some unknown (because I was too lazy), but certain, speedup, and also
559 making signals reliable for the first time.
560 - used new SLF interface and other optimisations to speed up async_pool
561 by a factor of two. It also doesn't rely on perl's exception mechanism
562 to exit anymore. The overhead for terminating an async_pool, coro over
563 a normal async is now very small.
564 - sped up coroutine creation/destruction by 40%.
565 - forgot to include Coro/libcoro/README in the dist for all these years.
566 - work around a freebsd pthreads bug (manual testcancel is required as
567 pthread_cond_wait isn't a cancellation point on freebsd).
568 - use new rouse functions to speed up and simplify Coro::BDB.
569 - make "prefer perl native functions" work with threaded perls.
570 - condense Coro::Debug ps output, hint at v and w flags.
571 - (libcoro) lots of minor cleanups and portability improvements.
572
5734.914 Wed Nov 19 12:54:18 CET 2008
574 - fix a disastrous bug in the readline optimisation
575 introduced in 4.801.
576
5774.913 Sat Nov 15 07:58:28 CET 2008
578 - async_pool did free a scalar value twice
579 ("Attempt to unreference...").
580
5814.912 Thu Nov 13 18:31:23 CET 2008
582 - minor cleanups.
583 - use much larger stacks on linux and perl < 5.8.8.
584 - Coro::Debug::new_unix_server did not unlink the socket
585 when destroyed.
586
5874.911 Tue Nov 11 04:26:17 CET 2008
588 - "port" to threaded perls.
589
5904.91 Mon Nov 10 05:36:38 CET 2008
591 - the ->throw exception object no longer leaks.
592 - creating a new cctx leaked a scopestack entry (memleak).
593 - new coroutines didn't get created with a zero flags field
594 (unknown impact).
595 - calling ->throw on a not-yet-started coroutine should now work
596 instead of being ignored.
597 - ->throw is now supported on Coro::State objects.
598 - clean up cctx creation code a bit.
599 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
600
6014.9 Sat Nov 8 17:45:27 CET 2008
602 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
603 - (libcoro) no longer leak threads in the experimental pthread backend,
604 also speed it up considerably.
605 - (libcoro) do not rely on makecontext passing void *'s unscathed.
606 - fix compiletime dependencies on libcoro in the Makefile.
607 - cctx_count wasn't always updated properly.
608 - Coro::State::cctx_stacksize wasn't applied correctly.
609 - new function Coro::State::cctx_max_idle.
610 - the default max number of idle C contexts is now 4.
611 - (libcoro) try harder to get _setjmp/_longjmp.
612 - (libcoro) cleanup and extend the libcoro API to officially
613 allow the creation of empty source contexts.
614 - very experimental workaround for the totally broken netbsd platform.
615 - tried to hack around openbsd bugs.
616
6174.804 Wed Nov 5 16:36:00 CET 2008
618 - Coro::Debug::new_unix_server would not create a non-blocking listening
619 socket, sometimes causing freezes.
620 - (libcoro) fix misaligned stack points for setjmp and assembly
621 methods, which can cause crashes on x86/x86_64 with a sufficiently
622 aggressive compiler.
623 - new function: Coro::Debug::new_tcp_server.
624 - move ->throw into the Coro class because it only works on coro objects.
625
6264.803 Mon Nov 3 17:16:12 CET 2008
627 - (libcoro) use a global asm statement to become independent of gcc
628 otpimisations for CORO_ASM (thanks to pippijn for the idea).
629 - try to workaround yet another broken bsd, this time dragonfly.
630
6314.802 Thu Oct 30 10:56:12 CET 2008
632 - support -fno-omit-frame-pointer on x86 with the assembly method.
633 - tune 01_unblock.t tests a bit.
634
6354.801 Wed Oct 22 18:33:37 CEST 2008
636 - improve readline speed for very long "lines".
637 - backport to 5.8.8.
638
6394.8 Thu Oct 2 13:34:40 CEST 2008
640 - new function Coro::AIO::aio_wait.
641 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
642 - greatly speed up and reduce memory usage of Coro::AIO requests.
643 - implement some other µ-optimisations.
644
6454.749 Mon Sep 29 14:40:12 CEST 2008
646 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
647
6484.748 Sat Sep 27 14:03:19 CEST 2008
649 - implement, but do not document, PerlIO::cede(granularity).
650 - Coro::Storable forgot to wrap Storable::pstore.
651 - work around the multitude of leaks and memory corruption
652 bugs in PerlIO::via by using our own C-level perliol. As a side
653 effect, Coro::Storable is now much, much, much faster.
654
6554.747 Tue Sep 23 01:59:41 CEST 2008
656 - fix a per-cv memleak (one empty array was leaked per
657 code reference).
658 - avoid a crash in coro->call|rss when the coroutine was already
659 destroyed (most noticably when using Coro::Debug::ps :)
660 - also protect *Storable::FILE.
661 - push up default storable granularity to 20ms.
662
6634.746 Sun Sep 21 03:22:20 CEST 2008
664 - be more insistent on locking Storable against reentrancy
665 in Coro::Storable.
666 - move swap_def?v and throw to Coro::State, as documented.
667
6684.745 Thu Jul 24 00:14:38 CEST 2008
8 - remove debugging code related to MgPV_nolen_const. 669 - remove debugging code related to MgPV_nolen_const, also try to
670 make it compile with perl 5.8.6 (yes, apple apparently loves
671 outdated software). Reported by John S.
9 672
104.744 Tue Jul 8 22:06:35 CEST 2008 6734.744 Tue Jul 8 22:06:35 CEST 2008
11 - correctly provide default DIE/WARN handlers as documented. 674 - correctly provide default DIE/WARN handlers as documented.
12 - also overwrite PL_vtbl_sigelem.svt_clear, even though current 675 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
13 implementations inside perl work fine for us. 676 implementations inside perl work fine for us.
14 677
154.743 Mon Jun 16 00:21:57 CEST 2008 6784.743 Mon Jun 16 00:21:57 CEST 2008
16 - when using Coro::EV without running EV::loop it could 679 - when using Coro::EV without running EV::loop it could
… …
38 - sprinkle "no warnings" freely over everything, also suppress 701 - sprinkle "no warnings" freely over everything, also suppress
39 warnings for some other modules. 702 warnings for some other modules.
40 - fix typo in WSAEWOULDBLOCK. 703 - fix typo in WSAEWOULDBLOCK.
41 704
424.72 Sun May 25 05:14:36 CEST 2008 7054.72 Sun May 25 05:14:36 CEST 2008
43 - tweak META.yaml a bit, unfortunately, there is no documented way 706 - tweak META.yaml a bit, unfortunately, there is no documented way
44 to have optional dependencies with CPAN. doh :( 707 to have optional dependencies with CPAN. doh :(
45 - avoid running some tests on windows because they would fail due to 708 - avoid running some tests on windows because they would fail due to
46 perl bug (broken fork, broken pipes...). 709 perl bug (broken fork, broken pipes...).
47 - work around perl on windows bugs where perl returns undocumented 710 - work around perl on windows bugs where perl returns undocumented
48 error codes for sysread, syswrite etc. by taking advantage 711 error codes for sysread, syswrite etc. by taking advantage
… …
52 - use unix domain sockets in testsuite to work around 715 - use unix domain sockets in testsuite to work around
53 common perl implementation bugs on widows (they are emulated by 716 common perl implementation bugs on widows (they are emulated by
54 tcp sockets on windows. ugh.) 717 tcp sockets on windows. ugh.)
55 718
564.71 Sat May 24 20:01:27 CEST 2008 7194.71 Sat May 24 20:01:27 CEST 2008
57 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()"). 720 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
58 - take advantage of async name resolution of AnyEvent::Util. 721 - take advantage of async name resolution of AnyEvent::Util.
59 - work around brutal inet_aton override in Coro::LWP. 722 - work around brutal inet_aton override in Coro::LWP.
60 - take advantage of the readyhook in Coro::EV, for smoother 723 - take advantage of the readyhook in Coro::EV, for smoother
61 scheduling. 724 scheduling.
62 725
634.7 Sun May 11 00:32:19 CEST 2008 7264.7 Sun May 11 00:32:19 CEST 2008
64 - completely reworked the Coro manpage. 727 - completely reworked the Coro manpage.
65 - added Coro::AnyEvent, generic event loop integration. 728 - added Coro::AnyEvent, generic event loop integration.
66 - implement cancel, ready and kill commands in Coro::Debug. 729 - implement cancel, ready and kill commands in Coro::Debug.
67 - document find_coro in Coro::Debug. 730 - document find_coro in Coro::Debug.
68 - incompatible change: rename has_stack to has_cctx. 731 - incompatible change: rename has_stack to has_cctx.
69 - Coro::AIO and Coro::BDB no longer force event model detection, 732 - Coro::AIO and Coro::BDB no longer force event model detection,
70 use AnyEvent::AIO and AnyEvent::BDB. 733 use AnyEvent::AIO and AnyEvent::BDB.
… …
194 857
1954.11 Thu Oct 11 02:40:24 CEST 2007 8584.11 Thu Oct 11 02:40:24 CEST 2007
196 - port to threaded perls. 859 - port to threaded perls.
197 860
1984.1 Thu Oct 11 02:38:16 CEST 2007 8614.1 Thu Oct 11 02:38:16 CEST 2007
199 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now 862 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
200 be local to each coro (see Coro::State). 863 be local to each coro (see Coro::State).
201 - incompatible change: for very deep reasons, cede and cede_notself 864 - incompatible change: for very deep reasons, cede and cede_notself
202 cannot return anything, so nothing will be returned. 865 cannot return anything, so nothing will be returned.
203 - possibly bring back 5.10 compatibility (untested). 866 - possibly bring back 5.10 compatibility (untested).
204 - work around stupid (and wrong) warning on 5.10 :(. 867 - work around stupid (and wrong) warning on 5.10 :(.
… …
276 but stateful semantics. 939 but stateful semantics.
277 - fixed a lot of typos in Coro.pm (patch submitted by David 940 - fixed a lot of typos in Coro.pm (patch submitted by David
278 Steinbrunner, which applied flawlessly). 941 Steinbrunner, which applied flawlessly).
279 942
2803.6 Sat Apr 14 17:13:31 CEST 2007 9433.6 Sat Apr 14 17:13:31 CEST 2007
281 - added some bugfixes to get eg/myhttpd working again. 944 - added some bugfixes to get eg/myhttpd working again.
282 - added Coro::Storable for often-cede'ing freeze/thaw. 945 - added Coro::Storable for often-cede'ing freeze/thaw.
283 - try to do a clean exit when a coroutine calls exit 946 - try to do a clean exit when a coroutine calls exit
284 (EXPERIMENTAL). 947 (EXPERIMENTAL).
285 - got rid of indirect call through _coro_init. 948 - got rid of indirect call through _coro_init.
286 - updated the partly antique examples in eg/ to 949 - updated the partly antique examples in eg/ to

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