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Comparing Coro/Changes (file contents):
Revision 1.410 by root, Fri Nov 14 06:41:41 2008 UTC vs.
Revision 1.676 by root, Thu Nov 29 21:17:06 2018 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?
8TODO: how to debug safe_cancel failure (vebrose mode? show how to make backtrace?)
9TODO: scalar context for Coro::AIO wrappers?
7 10
85.0 11 - the autogenerated prototypes of Coro::AIO now add ";" at the end
9 - NEW ARCHITECTURE: use 4.912 for the stable version. 12 to avoid generating named unary operators and messing up parsing
13 (mostly affects aio_mlockall 4 | 8 which was parsed as
14 (aio_mlockall 4) | 8).
15
166.52 Tue Aug 14 18:49:43 CEST 2018
17 - libcoro update: allow sharing of coro threads using the pthreads
18 backend among different pthreads, as is required by Coro::Multicore.
19 - always allow ->call and ->eval when the coro is the current coroutine. this
20 makes it possible, among other things, to call these on $Coro::main.
21 - minor code cleanups.
22
236.514 Thu Aug 31 18:25:31 CEST 2017
24 - safe_cancel no longer croaks when called on already-destroyed
25 thread, but instead "just works".
26
276.513 Sat Jul 15 01:18:51 CEST 2017
28 - experimental 5.22 comaptibility changes (PadlistNAMES).
29 - removed attributes example and made sure the other examples
30 still work.
31 - fix some statevar types for newer perls, should be of no consequence.
32
336.512 Fri Jul 14 05:03:17 CEST 2017
34 - seems to pass test suite down till 5.8.9, so make this the
35 minimum requirement in Makefile.PL.
36 - experimental 5.24 compatibility changes (SUB_ARGARRAY).
37 - experimental 5.26 compatibility changes (PL_comppad -> PADOFFSET).
38 - disable FORTIFY_SOURCE to avoid broken (but well-intentioned)
39 fortified longjmp variants in some libcs.
40 - re-try JIT allocation without PROT_EXEC, to hopefully improve
41 portability (still doesn't seem to work around broken selinux
42 mmap everywhere).
43 - speling fixes (Xavier Guimard).
44
456.511 Sun Jun 26 23:44:50 CEST 2016
46 - make it compile with threaded perls again.
47 - simplify and speed up __DIE__ and __WARN__ handling.
48
496.51 Sat Jun 25 20:57:20 CEST 2016
50 - 6.5 release didn't compile on most older perls due to
51 a logic error enabling experimental 5.24 code for all versions.
52 - since various broken or deficient patches float around
53 to work around the vtbl API breakage in perl, let's provide
54 our own workaround, which seems to be much less invasive
55 and more compatible than the approaches seen so far. YMMV.
56 - work around assertion failure in perl_destruct on 5.24
57 (analyzed by Dave Mitchell).
58
596.5 Wed Jun 22 22:23:50 CEST 2016
60 - swap_sv swapping order was not symmetrical, causing
61 wrong swaps when swap_sv was used multiple times on the
62 same sv in the same thread.
63 - swap_sv calls can now be undone by calling it again
64 with the same variables.
65 - swap_sv calls will now be undone in async_pool threads.
66 - split Coro::Semaphore::up/adjust into separate xs functions
67 for better error reporting, at slight codesize increase.
68 - (libcoro) arm assembly support, please test and report.
69 - adjust to PL_savestack changes in perl 5.24 (adapted from
70 the debian patch, which unfortunately gets it wrong).
71
726.49 Sat Oct 17 01:40:12 CEST 2015
73 - throwing an exception to a thread waiting in
74 Coro::Handle using Coro::EV did not stop the watchers,
75 causing the next call to fail (testcase by Martin Pritchard).
76 - bump minimum perl version to 5.10.
77
786.48 Sun Oct 4 19:03:51 CEST 2015
79 - fix memory leak when Coro::Handle uses Coro::EV internally
80 (testcase by Sten Sten).
81 - update code to libev 4 API (internally, Coro still used the
82 version 3 API calls).
83 - remove unused hv_sig.
84
856.47 Sat Jul 11 03:58:20 CEST 2015
86 - swap_svs - NVs can be in the SV head beginning with 5.20.
87
886.46 Tue Jun 30 14:36:30 CEST 2015
89 - restore portability to perls with windows fork emulation
90 (patch by Petr Písař).
91
926.45 Tue Jun 30 01:40:08 CEST 2015
93 - restore portability to perl 5.16 and below.
94
956.44 Tue Jun 30 00:41:54 CEST 2015
96 - avoid segfaulting (or worse) when tracing a canceled thread.
97 - the Event module silently broke it's public hook API, causing
98 failures on perls compiled with -Duselongdouble. Requiring
99 the latest version of Event because I don't know which release
100 changed this (it's not mentioned in the ChangeLog).
101 - allow xs level enterleave hooks via CoroAPI.
102
1036.43 Thu Jun 4 15:38:14 CEST 2015
104 - use stability canary.
105 - port to stableperl-5.22.0-1.001.
106 - update libecb.
107
1086.42 Wed Feb 11 20:29:52 CET 2015
109 - Coro::SemaphoreSet->try did not actually work (analyzed by
110 SATO Kentaro).
111 - upgrade libecb to be C11 compliant.
112
1136.41 Sat Sep 6 22:08:46 CEST 2014
114 - restore portability to perl 5.8.x.
115 - give new Coro's a valid GvHV(PL_hintgv) - this is slow and takes
116 up some memory, but fixes "use feature" and similar modules
117 when used inside a Coro.
118 - allow zero as argument to Coro::Channel to mean the same thing
119 as no argument. this works with older versions as well,
120 but wasn't legal until now.
121 - slightly better c header file detection.
122
1236.39 Mon Jun 2 00:00:08 CEST 2014
124 - work around more incompatible changes in 5.20.
125
1266.38 Sun Jun 1 21:54:23 CEST 2014
127 - check that perl slots actually have enough space to hold
128 interpreter variables.
129 - untested port to perl 5.19 (64 bit tmps indices) (reported
130 by Andreas König).
131 - croak when cancel is called without a thread context.
132
1336.37 Tue Mar 4 13:27:33 CET 2014
134 - *sigh*, removed leftover debugging code from debugging a
135 perl bug, of all things.
136
1376.36 Tue Mar 4 07:11:59 CET 2014
138 - semaphores would not clear the destroy hook when interrupted
139 by ->throw, causing segfaults or worse.
140 - ->throw on a thread waiting for a semaphore did not acquire
141 the semaphore, but also didn't wake up other waiters,
142 possibly causing a deadlock.
143 - "FATAL: $Coro::IDLE blocked itself" will now use Carp::confess
144 to report a full stacktrace, which should help find out
145 where the actual call is.
146 - "atomically" destroy data in slf_destroy, because it is
147 the right thing to do, just in case.
148 - disable ecb.h libm dependency, to compile on ancient systems
149 or under adverse conditions.
150
1516.33 Mon Nov 18 11:26:27 CET 2013
152 - do not crash when freeing padlists with holes (in 5.18).
153 - tentative SVt_BIND 5.19 port/fix.
154
1556.32 Tue Nov 5 15:35:35 CET 2013
156 - use a new algorithm to derive padlists for perl 5.18. The old
157 one could lead to 0-pointer accesses inside perl (reported
158 by Darin McBride).
159
1606.31 Thu May 9 07:39:48 CEST 2013
161 - Coro::AIO requests would crash if the thread was ready'd
162 while the request was ongoing.
163
1646.29 Wed May 8 02:55:18 CEST 2013
165 - when an on_destroy handler destructs the coro currently being
166 destructed a perl scalar could be accessed after being freed,
167 likely causing a crash.
168
1696.28 Wed Mar 6 06:58:02 CET 2013
170 - clean remnants of existing __DIE__ and __WARN__ handlers so
171 they lose their magic and will not cause segfaults later
172 (testcase by Andrey Sagulin).
173 - improved Coro::State documentation a bit.
174 - Coro::Debug::command now flushes the output.
175 - add hack detection code for x32 abi, because the braindead slugs
176 who designed that made it look exactly like x86_64 without
177 providing proper compile time symbols to test for it. as a result,
178 this detection cannot work reliably.
179 - valgrind stack registering was broken.
180 - do not rely on Time::HiRes anymore in Coro::Debug.
181
1826.23 Fri Dec 7 23:36:37 CET 2012
183 - use experimental fiber implementation on native windows
184 perls.
185 - use sizeof (void *) as multiplication factor for stack sizes,
186 to accomodate the totally braindamaged microsoft 64 bit "os".
187 - changed verifier host from win2k-ap510-32 to win7-sp516-32/64.
188 activeperl 5.16 crashes when PerlIO_define_layer is called due
189 to some bug in the perl dll, strawberry perl at least passes
190 the testsuite.
191 - implement Coro::Handle->peeraddr/host/port, for slightly
192 improved compatibility with LWP.
193 - implement 5.17 compatibility by almost blindly applying a
194 good-looking patch by Father Chrysostomos.
195 - move stack management functions into libcoro 3.
196 - libcoro version 3 "released".
197 - support magic values as timed_io_once args.
198 - recommend AnyEvent 7+ or EV 4+, also require EV
199 version 4 or newer for Coro::EV.
200
2016.10 Tue Oct 9 01:14:27 CEST 2012
202 - updated ecb.h, it had a typo that caused it to not compile on many
203 big endian systems (reported by many people).
204 - disable memory fences in ecb.h to improve portability.
205
2066.09 Sat Oct 6 23:25:02 CEST 2012
207 - Coro::EV I/O watchers were not interruptible by exceptions
208 (Coro::State::throw) (testcase by sten).
209 - ->throw now puts threads into the ready queue, as this seems to
210 be expected by existing code, and code that doesn't cope with spurious
211 wakeups needs fixing anyway.
212 - use fd -1 in mmap.
213 - cast I32 to int in error message printf.
214 - warn about broken so-called "hardened" kernels.
215
2166.08 Fri Apr 13 12:05:47 CEST 2012
217 - be more aggressive about exiting like perl does - formerly,
218 exiting from the non-main thread would not execute END blocks.
219
2206.07 Fri Nov 11 21:21:48 CET 2011
221 - work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV).
222 - update ecb.h.
223
2246.06 Mon Aug 8 23:59:48 CEST 2011
225 - cygwin unfortunately patches the stack at runtime, so we use the pthreads
226 backend, which is an order of magnitude slower. unfortunately, cygwins
227 pthread implementation isn't very complete either, so allocate the stack
228 twice just to be sure.
229 (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS,
230 in its ithreaded perl - best recompile cygwin and use the 'w'indows
231 backend for much better performance. also disable ithreads for
232 even better performance...).
233
2346.05 Thu Aug 4 21:36:36 CEST 2011
235 - blush, condvar values would not be propagated from send to recv anymore
236 (reported by Chip Salzenberg).
237 - use exponential increase for the readline buffer length in
238 Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes.
239
2406.04 Wed Aug 3 17:15:45 CEST 2011
241 - use even more efficient and more compatible condvars for
242 compatibility to AnyEvent 6.x :)
243 - more inconsequential ecb.h updates.
244
2456.03 Wed Aug 3 11:41:30 CEST 2011
246 - change how Coro patches AnyEvent condvars for compatibility to
247 AnyEvent 6.x.
248 - update ecb.h, to no longer include <pthread.h> in case WinNT.h
249 hasn't been included.
250
2516.02 Wed Jul 13 04:35:19 CEST 2011
252 - "improve portability to Gentoo" - gentoo manages to put perl variables
253 in memory areas that are farther than 2gb apart, which the jit couldn't
254 handle and barfed. now it's just a bit slower on gentoo and similar
255 systems.
256
2576.01 Sun Jul 3 12:31:14 CEST 2011
258 - workarounds are good, but the test for whether pthreads are used
259 was not good. this one should be better.
260 - check differently whether gcc generates cfi instructions itself.
261
2626.0 Wed Jun 29 19:43:35 CEST 2011
263 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
264 destroyed and cleaned up automatically (e.g. async { schedule }).
265 - implement a JIT compiler for part of the thread switch code,
266 which gives a 50% speed improvement on threaded perls, and
267 about 4% on non-threaded perls (so threaded perls now finally
268 reach about half the speed of non-threaded perls).
269 - slightly modernise Coro::Intro, add section about rouse functions.
270 - avoid DEFSV and ERRSV, giving another 10% improvement
271 in thread switching.
272 - Coro::State->is_destroyed is now called is_zombie.
273 - implement a Coro->safe_cancel method that might fail, but
274 cancels in a "safer" way if it succeeds.
275 - add preliminary support for DEBUGGING perls.
276 - get rid of two hash-accesses when initialising a new Coro - this
277 speeds up coro creation by almost a factor of two.
278 - croak when a coro that is being cancelled tries to block
279 (e.g. while executing a guard block), instead of crashing or
280 deadlocking.
281 - use a more robust and also faster method to identify Coro::State
282 objects - speeds up everything a bit.
283 - implement Coro->cancel in XS for a 20% speed improvement, and to
284 be able to implement mutual cancellation.
285 - speed up context switches by a percent or two by more efficiently
286 allocating context stack entries.
287 - implement Coro->join and Coro->on_destroy in XS for a speedup and
288 a reduction in memory use.
289 - cancelling a coro while it itself is cancelling another coro is
290 now supported and working, instead of triggering an assertion.
291 - be a bit more crash-resistant when calling (buggy) on_destroy
292 callbacks (best effort).
293 - move on_destroy into the slf_frame, to allow extension slf
294 functions to have destructors.
295 - get rid if coro refcounting - simply crash in other interpreter
296 threads by nulling the pointers on clone.
297 - simplify warn/die hook handling when loading Coro - the convoluted
298 logic seems to be no longer neccessary.
299 - use libecb instead of our own home-grown gcc hacks.
300 - document alternatives to Coro::LWP. Please use them :)
301 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
302 sigaltstack. Really. wine suffers from it, erlang suffers from it,
303 and it's known since at least 2006.
304
3055.372 Wed Feb 23 06:14:30 CET 2011
306 - apparently mingw doesn't provide a working gettimeofday, try to
307 work around that by relying on Time::HiRes (indirectly brought to
308 my attention by Max Maischein).
309 - fix some portability issues when Time::HiRes was used.
310
3115.371 Mon Feb 21 14:36:08 CET 2011
312 - backport to windows process emulation code again.
313
3145.37 Sat Feb 19 07:49:44 CET 2011
315 - add a big "Coro thread life cycle" section to "man Coro".
316 - try a tentative workaround against the breakage that 5.13 has
317 introduced without depreciation period. sigh.
318 - no longer use Time::HiRes if gettimeofday is available, which
319 saves quite a lot of memory.
320
3215.36 Sun Feb 13 05:33:41 CET 2011
322 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
323 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
324 method call.
325 - undocument Coro::Timer::sleep and obsolete whole module.
326 - optimise Coro::Timer::timeout memory and cpu usage.
327 - slightly updated Coro::Intro for recent changes.
328 - do not initialise PL_dirty anymore.
329
3305.25 Thu Nov 11 01:08:39 CET 2010
331 - try a different approach on netbsd - netbsd 5 finally has marginally
332 working pthreads, but still broken ucontext/sigaltstack.
333 - openbsd 4.8 finally got their act together, Coro works out of the box
334 with asm, setjmp and pthreads (no change, just informational).
335
3365.24 Sat Oct 23 11:27:12 CEST 2010
337 - port to the EV 4.0 API.
338 - work around bugs in mingw32, making strawberry perl work
339 out of the box.
340 - correctly modify Coro::AIO function prototypes
341 so that they reflect the "no optional parameters" rule.
342 - "ported" libcoro to C++.
343
3445.23 Mon May 17 18:50:42 CEST 2010
345 - be more resistant to ordering changes when initialising
346 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
347 Waldorf).
348 - document that perl 5.12 deliberately removed support for cloning.
349
3505.22 Wed Apr 14 03:55:35 CEST 2010
351 - correctly return udnef on errors in Coro::Handle::read/write
352 (testcase by Marc Mims).
353 - convert Coro::Util into a "perl compatibility wrapper" - the functions
354 are less useful now, but are drop-in replacements for existing
355 functions, listing better alternatives in the documentation. This also
356 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
357 with Coro::Util::inet_aton.
358 - do not override $Coro::idle unconditionally in Coro.pm, as other
359 modules could have provided their own idle coro already
360 (for exmaple, Coro::AnyEvent).
361 - fix Coro::Util::gethost* functions.
362 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
363
3645.21 Wed Dec 16 07:19:51 CET 2009
365 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
366 together.
367 - add some examples on how to combine other event loops with Coro in
368 Coro::AnyEvent, and how to run it (and not to block). Seems to be
369 the most common source of confusion.
370 - try to catch people naively blocking in an event callback.
371 - work around the perl filehandle bug issue in conjunction with
372 older common::sense (as indirectly pointed out by ZSystem).
373 - clarify the "not from signal handlers" section.
374
3755.2 Sun Oct 4 14:54:24 CEST 2009
376 - Coro::Storable destroyed the prototypes of the functions it wrapped.
377 - export rouse_cb and rouse_wait by default now.
378 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
379 - new method $state->swap_sv.
380 - added section on "windows process emulation" to the manpage,
381 after a not-so-fruitful (nor-friendly) "discussion" with chip
382 salzenberg (discussion implies arguments, but his only arguments
383 were ad-hominems, one wonders why he started it in the first
384 place). I hope this explains it well enough for him to understand,
385 and maybe well enough for others to understand.
386 - use common::sense everywhere now.
387 - idle callbacks are no longer supported, use idle coros instead.
388 - print a thread listing when a deadlock is detected.
389
3905.17 Sat Aug 22 23:09:31 CEST 2009
391 - work around a bug in the perl debugger causing crashes
392 when running under the debugger by marking _pool_handler as nodebug.
393 - speed up Coro::async considerably.
394 - try some hacks to get netbsd to work "more often" - their broken
395 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
396 - convert Coro to AE 5.0 API.
397
3985.162 Tue Jul 28 04:04:03 CEST 2009
399 - perl 5.8.2 is now minimum requirement.
400 - skip t/19_handle.t on broken windows perls.
401
4025.161 Wed Jul 22 04:47:38 CEST 2009
403 - Coro::AnyEvent::poll could have a different prototype when EV was
404 used as backend (analyzed by Tatsuhiko Miyagawa).
405 - Coro::AnyEvent errornously initialised the event loop when loaded,
406 not on demand.
407 - try to workaround rare */t/01_unblock.t failures.
408
4095.16 Tue Jul 21 01:44:37 CEST 2009
410 - Coro::AnyEvent failed to hook into the event loop
411 when no threads had been readied between detecting
412 the event loop and actually running it.
413 - considerably speed up Coro::Select by taking avdantage
414 of AnyEvent > 4.8 and some other optimisations.
415 - implement paragraph readline mode in Coro::Handle
416 (based on patches by Zsbán Ambrus).
417 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
418 and analyzed by Yasuhiro MATSUMOTO).
419 - clarified libcoro license and copyright.
420 - someone stole my EXTRA_META!!!
421 - implement Coro::Select::patch_pp_sselect and it's brother,
422 for hardcode select overriding.
423
4245.151 Mon Jul 6 05:41:57 CEST 2009
425 - backport to windows process emulation code again (patch by
426 Yasuhiro MATSUMOTO).
427 - slightly update Coro::MakeMaker.
428
4295.15 Tue Jun 30 10:28:06 CEST 2009
430 - deprecate Coro::Socket, document how to get ipv6 support via
431 AnyEvent::Socket instead.
432 - implement signal->wait ($cb) interface, similar to semaphores.
433 - work around SvOK not supporting getmagic, so we have to getmagic
434 to test for undef :/ (reported by Matthias Waldorf).
435 - load Coro::AnyEvent in all modules using AnyEvent.
436 - work around perl corrupting our internal data structures,
437 reported by Tokuhiro Matsuno.
438 - enable per-coroutine real and cpu time gathering
439 (Coro::State::enable_times).
440
4415.14 Wed Jun 24 01:37:48 CEST 2009
442 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
443 as this seems to have been a difficult concept (poll, sleep, idle,
444 idle_upto).
445 - add Coro::AnyEvent::readable/writable functions.
446 - clarify Coro::EV/Event/AnyEvent manpages.
447 - free per-thread global scalars in the thread calling ->cancel, to
448 avoid crashes when $_, $@ etc., are magical but some of those
449 had already been freed.
450 - "unexperimentalise" the callback interface for Coro::Semaphore.
451 - speed up ready queue management/context switching by using a linked
452 list instead of an array (~5-10%).
453 - implement "watch" command in Coro::Debug shells.
454 - for fun, implement time-slicing as an example in the manpage.
455 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
456 Coro::Event, use the normal AnyEvent handling instead of dieing
457 (the same is true for Coro::Handle).
458 - properly document Coro::EV::timed_io_once.
459 - avoid unneccessary ->cancel calls in Coro::Handle.
460 - maybe make it work on mingw32 with win32 backend
461 (based on patch by Yasuhiro Matsumoto).
462
4635.132 Fri May 29 09:00:39 CEST 2009
464 - do not keep a reference to the argument itself in
465 Coro::Semaphore::guard, as it could change later.
466 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
467 should support a prepare callback.
468
4695.131 Mon Mar 16 23:20:37 CET 2009
470 - implement and document Coro->suspend, Coro->resume.
471 - fix Coro::Select implementation to not (often) close
472 the passed file descriptors (testcase provided by pippijn).
473
4745.13 Mon Dec 15 21:51:42 CET 2008
475 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
476 - don't set diehook to C<undef> but instead to NULL, to avoid
477 spurious warnings.
478 - fix a lot of bugs in Coro::SemaphoreSet.
479 - Coro::SemaphoreSet will less often create a semaphore needlessly.
480 - add Coro::SemaphoreSet::count and wait methods.
481 - take advantage of the new Guard module.
482 - deprecate Coro::guard.
483 - try to fix the dreaded 01_unblock tests once more. I hate it when
484 testsuites need more fixing than the code they are supposed to test.
485 - croak in more cases when a required callback isn't resolvable.
486 - fix some minor issues in Coro::State->call/eval.
487 - use current coroutine context instead of a temporary one
488 when temporarily switching to another coroutine.
489 - do not call C-level on_destroy handlers during global destruction,
490 to avoid needless segfaults.
491
4925.12 Sun Dec 7 13:30:38 CET 2008
493 - add default config for MirOS, which seems to be a bug-to-bug
494 compatible fork of openbsd ("world domination by releasing
495 openbsd cvs before the openbsd folks do it" or so :).
496 - free_padlist did destroy the names pad, not good, but didn't
497 seem to bother perl - this could fix issues such as eval ""
498 inside a function called from multiple coroutines.
499 - use a different method to detect destruction time.
500 - be more careful when freeing padlists just before global
501 destruction.
502 - fixed and expanded the call/cc example.
503 - renamed _terminate to _coro_run.
504 - new method Coro::Channel->shutdown.
505 - try pthreads on openbsd <4.4 (broken sigaltstack, will
506 pthreads fare better?).
507 - be less picky about destroying "a" running coroutine.
508
5095.11 Tue Nov 25 21:49:05 CET 2008
510 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
511 working code with failed assertions, introducing more bugs than
512 it fixes, requiring elaborate workarounds :(
513
5145.1 Mon Nov 24 08:54:59 CET 2008
515 - wrote a small introductory tutorial - Coro::Intro.
516 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
517 - Coro::Select did errornously dup the file descriptors
518 and didn't work with all AnyEvent backends.
519 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
520 LWP data transfers.
521 - disassociate c contexts from coro objects - this is agruably more
522 correct, but mostly allows sharing of cctxs between coro and state
523 objects, for added memory savings and speed increases.
524 - bumped $Coro::POOL_RSS up to 32kb by default.
525 - no longer set the optype to OP_CUSTOM, as B::* understandably
526 doesn't like this very much (and we *are* a type of entersub).
527 - implement state cloning, just to prove that call/cc can be done.
528 - automatically load Coro::AnyEvent in Coro::Handle.
529 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
530 do not have this method (and don't need it either).
531 - speed up generic anyevent methods in Coro::Handle by using rouse
532 callbacks.
533 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
534 others. It also makes the debugger happier, as you can trace
535 through the idle threads now.
536 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
537 - eg/event was pretty broken.
538 - better 5.8.6 compatibility.
539
5405.0 Thu Nov 20 10:35:05 CET 2008
541 - NEW ARCHITECTURE: use the latest 4.x version if you experience
542 stability issues.
543 - bump API version to 7 - all dependents must be recompiled.
544 - removed timed_* functions - they were not being used anyways
545 and should be replaced by a more generic mechanism -
546 and were annoying to support anyways :)
547 - removed SemaphoreSet's waiter method - use sem method instead.
548 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
549 - async_pool did free a scalar value twice
550 ("Attempt to unreference...").
551 - fix a longstanding bug where calling terminate on a coro that
552 was waiting for a semaphore that was just becoming available
553 would cause a deadlock (semaphore would get into a state where
554 it was available but waiters were still blocked).
555 - calling throw on a coroutine that is waiting for a semaphore will
556 no longer make it acquire the semaphore (and thus leak a count).
557 - perl's process emulation is now not even theoretically supported
558 anymore.
559 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
560 conversion of callback-style to blocking-style.
561 - new methods $coro->schedule_to and ->cede_to, to specifically
562 schedule or cede to a specific coroutine.
563 - new function Coro::Semaphore::wait.
564 - use named constants in Coro::Channel (Richard Hundt).
10 - directly patch the entersub opcode calling ssl functions (cede, 565 - directly patch the entersub opcode calling SLF functions (cede,
11 transfer and so on). this does speed up context switching by 566 transfer and so on). this does speed up context switching, but
12 up to 10%. More importanly, it frees us from the hardcoded 567 more importanly, it frees us from the hardcoded behaviour of
13 behaviour of entersub, so we might actually be able to return 568 entersub, so we might actually be able to return something from
14 something from those functions. 569 those functions and atcually create new ones.
15 - take advanatge of __builtin_frame_address on gcc. 570 - take advantage of __builtin_frame_address on gcc.
571 - expose THX in coroapi (not sure whether this was a wise decision,
572 as "threaded" perls are running at half speed anyways).
573 - implement execute_slf (schedule-like-function) interface that makes
574 it possible to implement schedule-like-functions in XS.
575 - use new SLF interface to massively speed up Coro::EV by roughly a
576 factor of two.
577 - used new SLF interface to massively speed up Coro::Semaphore by a
578 factor of three.
579 - used new SLF interface to speed up Coro::AIO by roughly a factor of
580 four and reduce its memory usage considerably.
581 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
582 for a nice speedup and vastly more correct behaviour. Also implement
583 a new method "sem" to get at the underlying semaphore object.
584 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
585 (in comparison) 20-40% speedup.
586 - used new SLF interface to reimplement Coro::Signal gaining
587 some unknown (because I was too lazy), but certain, speedup, and also
588 making signals reliable for the first time.
589 - used new SLF interface and other optimisations to speed up async_pool
590 by a factor of two. It also doesn't rely on perl's exception mechanism
591 to exit anymore. The overhead for terminating an async_pool, coro over
592 a normal async is now very small.
593 - sped up coroutine creation/destruction by 40%.
594 - forgot to include Coro/libcoro/README in the dist for all these years.
595 - work around a freebsd pthreads bug (manual testcancel is required as
596 pthread_cond_wait isn't a cancellation point on freebsd).
597 - use new rouse functions to speed up and simplify Coro::BDB.
598 - make "prefer perl native functions" work with threaded perls.
599 - condense Coro::Debug ps output, hint at v and w flags.
600 - (libcoro) lots of minor cleanups and portability improvements.
601
6024.914 Wed Nov 19 12:54:18 CET 2008
603 - fix a disastrous bug in the readline optimisation
604 introduced in 4.801.
605
6064.913 Sat Nov 15 07:58:28 CET 2008
607 - async_pool did free a scalar value twice
608 ("Attempt to unreference...").
16 609
174.912 Thu Nov 13 18:31:23 CET 2008 6104.912 Thu Nov 13 18:31:23 CET 2008
18 - minor cleanups. 611 - minor cleanups.
19 - use much larger stacks on linux and perl < 5.8.8. 612 - use much larger stacks on linux and perl < 5.8.8.
20 - Coro::Debug::new_unix_server did not unlink the socket 613 - Coro::Debug::new_unix_server did not unlink the socket
… …
33 - ->throw is now supported on Coro::State objects. 626 - ->throw is now supported on Coro::State objects.
34 - clean up cctx creation code a bit. 627 - clean up cctx creation code a bit.
35 - entersub is actually a UNOP, not a LOGOP (not a bugfix). 628 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
36 629
374.9 Sat Nov 8 17:45:27 CET 2008 6304.9 Sat Nov 8 17:45:27 CET 2008
38 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there). 631 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
39 - (libcoro) no longer leak threads in the experimental pthread backend, 632 - (libcoro) no longer leak threads in the experimental pthread backend,
40 also speed it up considerably. 633 also speed it up considerably.
41 - (libcoro) do not rely on makecontext passing void *'s unscathed. 634 - (libcoro) do not rely on makecontext passing void *'s unscathed.
42 - fix compiletime dependencies on libcoro in the Makefile. 635 - fix compiletime dependencies on libcoro in the Makefile.
43 - cctx_count wasn't always updated properly. 636 - cctx_count wasn't always updated properly.
… …
105 - remove debugging code related to MgPV_nolen_const, also try to 698 - remove debugging code related to MgPV_nolen_const, also try to
106 make it compile with perl 5.8.6 (yes, apple apparently loves 699 make it compile with perl 5.8.6 (yes, apple apparently loves
107 outdated software). Reported by John S. 700 outdated software). Reported by John S.
108 701
1094.744 Tue Jul 8 22:06:35 CEST 2008 7024.744 Tue Jul 8 22:06:35 CEST 2008
110 - correctly provide default DIE/WARN handlers as documented. 703 - correctly provide default DIE/WARN handlers as documented.
111 - also overwrite PL_vtbl_sigelem.svt_clear, even though current 704 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
112 implementations inside perl work fine for us. 705 implementations inside perl work fine for us.
113 706
1144.743 Mon Jun 16 00:21:57 CEST 2008 7074.743 Mon Jun 16 00:21:57 CEST 2008
115 - when using Coro::EV without running EV::loop it could 708 - when using Coro::EV without running EV::loop it could
… …
137 - sprinkle "no warnings" freely over everything, also suppress 730 - sprinkle "no warnings" freely over everything, also suppress
138 warnings for some other modules. 731 warnings for some other modules.
139 - fix typo in WSAEWOULDBLOCK. 732 - fix typo in WSAEWOULDBLOCK.
140 733
1414.72 Sun May 25 05:14:36 CEST 2008 7344.72 Sun May 25 05:14:36 CEST 2008
142 - tweak META.yaml a bit, unfortunately, there is no documented way 735 - tweak META.yaml a bit, unfortunately, there is no documented way
143 to have optional dependencies with CPAN. doh :( 736 to have optional dependencies with CPAN. doh :(
144 - avoid running some tests on windows because they would fail due to 737 - avoid running some tests on windows because they would fail due to
145 perl bug (broken fork, broken pipes...). 738 perl bug (broken fork, broken pipes...).
146 - work around perl on windows bugs where perl returns undocumented 739 - work around perl on windows bugs where perl returns undocumented
147 error codes for sysread, syswrite etc. by taking advantage 740 error codes for sysread, syswrite etc. by taking advantage
… …
151 - use unix domain sockets in testsuite to work around 744 - use unix domain sockets in testsuite to work around
152 common perl implementation bugs on widows (they are emulated by 745 common perl implementation bugs on widows (they are emulated by
153 tcp sockets on windows. ugh.) 746 tcp sockets on windows. ugh.)
154 747
1554.71 Sat May 24 20:01:27 CEST 2008 7484.71 Sat May 24 20:01:27 CEST 2008
156 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()"). 749 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
157 - take advantage of async name resolution of AnyEvent::Util. 750 - take advantage of async name resolution of AnyEvent::Util.
158 - work around brutal inet_aton override in Coro::LWP. 751 - work around brutal inet_aton override in Coro::LWP.
159 - take advantage of the readyhook in Coro::EV, for smoother 752 - take advantage of the readyhook in Coro::EV, for smoother
160 scheduling. 753 scheduling.
161 754
1624.7 Sun May 11 00:32:19 CEST 2008 7554.7 Sun May 11 00:32:19 CEST 2008
163 - completely reworked the Coro manpage. 756 - completely reworked the Coro manpage.
164 - added Coro::AnyEvent, generic event loop integration. 757 - added Coro::AnyEvent, generic event loop integration.
165 - implement cancel, ready and kill commands in Coro::Debug. 758 - implement cancel, ready and kill commands in Coro::Debug.
166 - document find_coro in Coro::Debug. 759 - document find_coro in Coro::Debug.
167 - incompatible change: rename has_stack to has_cctx. 760 - incompatible change: rename has_stack to has_cctx.
168 - Coro::AIO and Coro::BDB no longer force event model detection, 761 - Coro::AIO and Coro::BDB no longer force event model detection,
169 use AnyEvent::AIO and AnyEvent::BDB. 762 use AnyEvent::AIO and AnyEvent::BDB.
… …
293 886
2944.11 Thu Oct 11 02:40:24 CEST 2007 8874.11 Thu Oct 11 02:40:24 CEST 2007
295 - port to threaded perls. 888 - port to threaded perls.
296 889
2974.1 Thu Oct 11 02:38:16 CEST 2007 8904.1 Thu Oct 11 02:38:16 CEST 2007
298 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now 891 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
299 be local to each coro (see Coro::State). 892 be local to each coro (see Coro::State).
300 - incompatible change: for very deep reasons, cede and cede_notself 893 - incompatible change: for very deep reasons, cede and cede_notself
301 cannot return anything, so nothing will be returned. 894 cannot return anything, so nothing will be returned.
302 - possibly bring back 5.10 compatibility (untested). 895 - possibly bring back 5.10 compatibility (untested).
303 - work around stupid (and wrong) warning on 5.10 :(. 896 - work around stupid (and wrong) warning on 5.10 :(.
… …
375 but stateful semantics. 968 but stateful semantics.
376 - fixed a lot of typos in Coro.pm (patch submitted by David 969 - fixed a lot of typos in Coro.pm (patch submitted by David
377 Steinbrunner, which applied flawlessly). 970 Steinbrunner, which applied flawlessly).
378 971
3793.6 Sat Apr 14 17:13:31 CEST 2007 9723.6 Sat Apr 14 17:13:31 CEST 2007
380 - added some bugfixes to get eg/myhttpd working again. 973 - added some bugfixes to get eg/myhttpd working again.
381 - added Coro::Storable for often-cede'ing freeze/thaw. 974 - added Coro::Storable for often-cede'ing freeze/thaw.
382 - try to do a clean exit when a coroutine calls exit 975 - try to do a clean exit when a coroutine calls exit
383 (EXPERIMENTAL). 976 (EXPERIMENTAL).
384 - got rid of indirect call through _coro_init. 977 - got rid of indirect call through _coro_init.
385 - updated the partly antique examples in eg/ to 978 - updated the partly antique examples in eg/ to

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