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Comparing Coro/Changes (file contents):
Revision 1.423 by root, Mon Nov 17 01:05:47 2008 UTC vs.
Revision 1.650 by root, Fri Oct 16 05:25:42 2015 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, andallow to unswap by repeat?
7TODO: swap_sv not undone in pool
8TODO: croak when async_pool tries to run canceled thread?
7 9
8TODO: testcancel 10 - bump minimum perl version to 5.10.
9TODO: aio 11
10TODO: Coro::Semaphore 126.48 Sun Oct 4 19:03:51 CEST 2015
11TODO: trow disturbs cleanup path inside pp_slf? 13 - fix memory leak when Coro::Handle uses Coro::EV internally
12TODO: throw special-case in transfer? 14 (testcase by Sten Sten).
135.0 15 - update code to libev 4 API (internally, Coro still used the
14 - NEW ARCHITECTURE: use 4.912 for the stable version. 16 version 3 API calls).
17 - remove unused hv_sig.
18
196.47 Sat Jul 11 03:58:20 CEST 2015
20 - swap_svs - NVs can be in the SV head beginning with 5.20.
21
226.46 Tue Jun 30 14:36:30 CEST 2015
23 - restore portability to perls with windows fork emulation
24 (patch by Petr Písař).
25
266.45 Tue Jun 30 01:40:08 CEST 2015
27 - restore portability to perl 5.16 and below.
28
296.44 Tue Jun 30 00:41:54 CEST 2015
30 - avoid segfaulting (or worse) when tracing a canceled thread.
31 - the Event module silently broke it's public hook API, causing
32 failures on perls compiled with -Duselongdouble. Requiring
33 the latest version of Event because I don't know which release
34 changed this (it's not mentioned in the ChangeLog).
35 - allow xs level enterleave hooks via CoroAPI.
36
376.43 Thu Jun 4 15:38:14 CEST 2015
38 - use stability canary.
39 - port to stableperl-5.22.0-1.001.
40 - update libecb.
41
426.42 Wed Feb 11 20:29:52 CET 2015
43 - Coro::SemaphoreSet->try did not actually work (analyzed by
44 SATO Kentaro).
45 - upgrade libecb to be C11 compliant.
46
476.41 Sat Sep 6 22:08:46 CEST 2014
48 - restore portability to perl 5.8.x.
49 - give new Coro's a valid GvHV(PL_hintgv) - this is slow and takes
50 up some memory, but fixes "use feature" and similar modules
51 when used inside a Coro.
52 - allow zero as argument to Coro::Channel to mean the same thing
53 as no argument. this works with older versions as well,
54 but wasn't legal until now.
55 - slightly better c header file detection.
56
576.39 Mon Jun 2 00:00:08 CEST 2014
58 - work around more incompatible changes in 5.20.
59
606.38 Sun Jun 1 21:54:23 CEST 2014
61 - check that perl slots actually have enough space to hold
62 interpreter variables.
63 - untested port to perl 5.19 (64 bit tmps indices) (reported
64 by Andreas König).
65 - croak when cancel is called without a thread context.
66
676.37 Tue Mar 4 13:27:33 CET 2014
68 - *sigh*, removed leftover debugging code from debugging a
69 perl bug, of all things.
70
716.36 Tue Mar 4 07:11:59 CET 2014
72 - semaphores would not clear the destroy hook when interrupted
73 by ->throw, causing segfaults or worse.
74 - ->throw on a thread waiting for a semaphore did not acquire
75 the semaphore, but also didn't wake up other waiters,
76 possibly causing a deadlock.
77 - "FATAL: $Coro::IDLE blocked itself" will now use Carp::confess
78 to report a full stacktrace, which should help find out
79 where the actual call is.
80 - "atomically" destroy data in slf_destroy, because it is
81 the right thing to do, just in case.
82 - disable ecb.h libm dependency, to compile on ancient systems
83 or under adverse conditions.
84
856.33 Mon Nov 18 11:26:27 CET 2013
86 - do not crash when freeing padlists with holes (in 5.18).
87 - tentative SVt_BIND 5.19 port/fix.
88
896.32 Tue Nov 5 15:35:35 CET 2013
90 - use a new algorithm to derive padlists for perl 5.18. The old
91 one could lead to 0-pointer accesses inside perl (reported
92 by Darin McBride).
93
946.31 Thu May 9 07:39:48 CEST 2013
95 - Coro::AIO requests would crash if the thread was ready'd
96 while the request was ongoing.
97
986.29 Wed May 8 02:55:18 CEST 2013
99 - when an on_destroy handler destructs the coro currently being
100 destructed a perl scalar could be accessed after being freed,
101 likely causing a crash.
102
1036.28 Wed Mar 6 06:58:02 CET 2013
104 - clean remnants of existing __DIE__ and __WARN__ handlers so
105 they lose their magic and will not cause segfaults later
106 (testcase by Andrey Sagulin).
107 - improved Coro::State documentation a bit.
108 - Coro::Debug::command now flushes the output.
109 - add hack detection code for x32 abi, because the braindead slugs
110 who designed that made it look exactly like x86_64 without
111 providing proper compile time symbols to test for it. as a result,
112 this detection cannot work reliably.
113 - valgrind stack registering was broken.
114 - do not rely on Time::HiRes anymore in Coro::Debug.
115
1166.23 Fri Dec 7 23:36:37 CET 2012
117 - use experimental fiber implementation on native windows
118 perls.
119 - use sizeof (void *) as multiplication factor for stack sizes,
120 to accomodate the totally braindamaged microsoft 64 bit "os".
121 - changed verifier host from win2k-ap510-32 to win7-sp516-32/64.
122 activeperl 5.16 crashes when PerlIO_define_layer is called due
123 to some bug in the perl dll, strawberry perl at least passes
124 the testsuite.
125 - implement Coro::Handle->peeraddr/host/port, for slightly
126 improved compatibility with LWP.
127 - implement 5.17 compatibility by almost blindly applying a
128 good-looking patch by Father Chrysostomos.
129 - move stack management functions into libcoro 3.
130 - libcoro version 3 "released".
131 - support magic values as timed_io_once args.
132 - recommend AnyEvent 7+ or EV 4+, also require EV
133 version 4 or newer for Coro::EV.
134
1356.10 Tue Oct 9 01:14:27 CEST 2012
136 - updated ecb.h, it had a typo that caused it to not compile on many
137 big endian systems (reported by many people).
138 - disable memory fences in ecb.h to improve portability.
139
1406.09 Sat Oct 6 23:25:02 CEST 2012
141 - Coro::EV I/O watchers were not interruptible by exceptions
142 (Coro::State::throw) (testcase by sten).
143 - ->throw now puts threads into the ready queue, as this seems to
144 be expected by existing code, and code that doesn't cope with spurious
145 wakeups needs fixing anyway.
146 - use fd -1 in mmap.
147 - cast I32 to int in error message printf.
148 - warn about broken so-called "hardened" kernels.
149
1506.08 Fri Apr 13 12:05:47 CEST 2012
151 - be more aggressive about exiting like perl does - formerly,
152 exiting from the non-main thread would not execute END blocks.
153
1546.07 Fri Nov 11 21:21:48 CET 2011
155 - work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV).
156 - update ecb.h.
157
1586.06 Mon Aug 8 23:59:48 CEST 2011
159 - cygwin unfortunately patches the stack at runtime, so we use the pthreads
160 backend, which is an order of magnitude slower. unfortunately, cygwins
161 pthread implementation isn't very complete either, so allocate the stack
162 twice just to be sure.
163 (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS,
164 in its ithreaded perl - best recompile cygwin and use the 'w'indows
165 backend for much better performance. also disable ithreads for
166 even better performance...).
167
1686.05 Thu Aug 4 21:36:36 CEST 2011
169 - blush, condvar values would not be propagated from send to recv anymore
170 (reported by Chip Salzenberg).
171 - use exponential increase for the readline buffer length in
172 Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes.
173
1746.04 Wed Aug 3 17:15:45 CEST 2011
175 - use even more efficient and more compatible condvars for
176 compatibility to AnyEvent 6.x :)
177 - more inconsequential ecb.h updates.
178
1796.03 Wed Aug 3 11:41:30 CEST 2011
180 - change how Coro patches AnyEvent condvars for compatibility to
181 AnyEvent 6.x.
182 - update ecb.h, to no longer include <pthread.h> in case WinNT.h
183 hasn't been included.
184
1856.02 Wed Jul 13 04:35:19 CEST 2011
186 - "improve portability to Gentoo" - gentoo manages to put perl variables
187 in memory areas that are farther than 2gb apart, which the jit couldn't
188 handle and barfed. now it's just a bit slower on gentoo and similar
189 systems.
190
1916.01 Sun Jul 3 12:31:14 CEST 2011
192 - workarounds are good, but the test for whether pthreads are used
193 was not good. this one should be better.
194 - check differently whether gcc generates cfi instructions itself.
195
1966.0 Wed Jun 29 19:43:35 CEST 2011
197 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
198 destroyed and cleaned up automatically (e.g. async { schedule }).
199 - implement a JIT compiler for part of the thread switch code,
200 which gives a 50% speed improvement on threaded perls, and
201 about 4% on non-threaded perls (so threaded perls now finally
202 reach about half the speed of non-threaded perls).
203 - slightly modernise Coro::Intro, add section about rouse functions.
204 - avoid DEFSV and ERRSV, giving another 10% improvement
205 in thread switching.
206 - Coro::State->is_destroyed is now called is_zombie.
207 - implement a Coro->safe_cancel method that might fail, but
208 cancels in a "safer" way if it succeeds.
209 - add preliminary support for DEBUGGING perls.
210 - get rid of two hash-accesses when initialising a new Coro - this
211 speeds up coro creation by almost a factor of two.
212 - croak when a coro that is being cancelled tries to block
213 (e.g. while executing a guard block), instead of crashing or
214 deadlocking.
215 - use a more robust and also faster method to identify Coro::State
216 objects - speeds up everything a bit.
217 - implement Coro->cancel in XS for a 20% speed improvement, and to
218 be able to implement mutual cancellation.
219 - speed up context switches by a percent or two by more efficiently
220 allocating context stack entries.
221 - implement Coro->join and Coro->on_destroy in XS for a speedup and
222 a reduction in memory use.
223 - cancelling a coro while it itself is cancelling another coro is
224 now supported and working, instead of triggering an assertion.
225 - be a bit more crash-resistant when calling (buggy) on_destroy
226 callbacks (best effort).
227 - move on_destroy into the slf_frame, to allow extension slf
228 functions to have destructors.
229 - get rid if coro refcounting - simply crash in other interpreter
230 threads by nulling the pointers on clone.
231 - simplify warn/die hook handling when loading Coro - the convoluted
232 logic seems to be no longer neccessary.
233 - use libecb instead of our own home-grown gcc hacks.
234 - document alternatives to Coro::LWP. Please use them :)
235 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
236 sigaltstack. Really. wine suffers from it, erlang suffers from it,
237 and it's known since at least 2006.
238
2395.372 Wed Feb 23 06:14:30 CET 2011
240 - apparently mingw doesn't provide a working gettimeofday, try to
241 work around that by relying on Time::HiRes (indirectly brought to
242 my attention by Max Maischein).
243 - fix some portability issues when Time::HiRes was used.
244
2455.371 Mon Feb 21 14:36:08 CET 2011
246 - backport to windows process emulation code again.
247
2485.37 Sat Feb 19 07:49:44 CET 2011
249 - add a big "Coro thread life cycle" section to "man Coro".
250 - try a tentative workaround against the breakage that 5.13 has
251 introduced without depreciation period. sigh.
252 - no longer use Time::HiRes if gettimeofday is available, which
253 saves quite a lot of memory.
254
2555.36 Sun Feb 13 05:33:41 CET 2011
256 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
257 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
258 method call.
259 - undocument Coro::Timer::sleep and obsolete whole module.
260 - optimise Coro::Timer::timeout memory and cpu usage.
261 - slightly updated Coro::Intro for recent changes.
262 - do not initialise PL_dirty anymore.
263
2645.25 Thu Nov 11 01:08:39 CET 2010
265 - try a different approach on netbsd - netbsd 5 finally has marginally
266 working pthreads, but still broken ucontext/sigaltstack.
267 - openbsd 4.8 finally got their act together, Coro works out of the box
268 with asm, setjmp and pthreads (no change, just informational).
269
2705.24 Sat Oct 23 11:27:12 CEST 2010
271 - port to the EV 4.0 API.
272 - work around bugs in mingw32, making strawberry perl work
273 out of the box.
274 - correctly modify Coro::AIO function prototypes
275 so that they reflect the "no optional parameters" rule.
276 - "ported" libcoro to C++.
277
2785.23 Mon May 17 18:50:42 CEST 2010
279 - be more resistant to ordering changes when initialising
280 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
281 Waldorf).
282 - document that perl 5.12 deliberately removed support for cloning.
283
2845.22 Wed Apr 14 03:55:35 CEST 2010
285 - correctly return udnef on errors in Coro::Handle::read/write
286 (testcase by Marc Mims).
287 - convert Coro::Util into a "perl compatibility wrapper" - the functions
288 are less useful now, but are drop-in replacements for existing
289 functions, listing better alternatives in the documentation. This also
290 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
291 with Coro::Util::inet_aton.
292 - do not override $Coro::idle unconditionally in Coro.pm, as other
293 modules could have provided their own idle coro already
294 (for exmaple, Coro::AnyEvent).
295 - fix Coro::Util::gethost* functions.
296 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
297
2985.21 Wed Dec 16 07:19:51 CET 2009
299 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
300 together.
301 - add some examples on how to combine other event loops with Coro in
302 Coro::AnyEvent, and how to run it (and not to block). Seems to be
303 the most common source of confusion.
304 - try to catch people naively blocking in an event callback.
305 - work around the perl filehandle bug issue in conjunction with
306 older common::sense (as indirectly pointed out by ZSystem).
307 - clarify the "not from signal handlers" section.
308
3095.2 Sun Oct 4 14:54:24 CEST 2009
310 - Coro::Storable destroyed the prototypes of the functions it wrapped.
311 - export rouse_cb and rouse_wait by default now.
312 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
313 - new method $state->swap_sv.
314 - added section on "windows process emulation" to the manpage,
315 after a not-so-fruitful (nor-friendly) "discussion" with chip
316 salzenberg (discussion implies arguments, but his only arguments
317 were ad-hominems, one wonders why he started it in the first
318 place). I hope this explains it well enough for him to understand,
319 and maybe well enough for others to understand.
320 - use common::sense everywhere now.
321 - idle callbacks are no longer supported, use idle coros instead.
322 - print a thread listing when a deadlock is detected.
323
3245.17 Sat Aug 22 23:09:31 CEST 2009
325 - work around a bug in the perl debugger causing crashes
326 when running under the debugger by marking _pool_handler as nodebug.
327 - speed up Coro::async considerably.
328 - try some hacks to get netbsd to work "more often" - their broken
329 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
330 - convert Coro to AE 5.0 API.
331
3325.162 Tue Jul 28 04:04:03 CEST 2009
333 - perl 5.8.2 is now minimum requirement.
334 - skip t/19_handle.t on broken windows perls.
335
3365.161 Wed Jul 22 04:47:38 CEST 2009
337 - Coro::AnyEvent::poll could have a different prototype when EV was
338 used as backend (analyzed by Tatsuhiko Miyagawa).
339 - Coro::AnyEvent errornously initialised the event loop when loaded,
340 not on demand.
341 - try to workaround rare */t/01_unblock.t failures.
342
3435.16 Tue Jul 21 01:44:37 CEST 2009
344 - Coro::AnyEvent failed to hook into the event loop
345 when no threads had been readied between detecting
346 the event loop and actually running it.
347 - considerably speed up Coro::Select by taking avdantage
348 of AnyEvent > 4.8 and some other optimisations.
349 - implement paragraph readline mode in Coro::Handle
350 (based on patches by Zsbán Ambrus).
351 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
352 and analyzed by Yasuhiro MATSUMOTO).
353 - clarified libcoro license and copyright.
354 - someone stole my EXTRA_META!!!
355 - implement Coro::Select::patch_pp_sselect and it's brother,
356 for hardcode select overriding.
357
3585.151 Mon Jul 6 05:41:57 CEST 2009
359 - backport to windows process emulation code again (patch by
360 Yasuhiro MATSUMOTO).
361 - slightly update Coro::MakeMaker.
362
3635.15 Tue Jun 30 10:28:06 CEST 2009
364 - deprecate Coro::Socket, document how to get ipv6 support via
365 AnyEvent::Socket instead.
366 - implement signal->wait ($cb) interface, similar to semaphores.
367 - work around SvOK not supporting getmagic, so we have to getmagic
368 to test for undef :/ (reported by Matthias Waldorf).
369 - load Coro::AnyEvent in all modules using AnyEvent.
370 - work around perl corrupting our internal data structures,
371 reported by Tokuhiro Matsuno.
372 - enable per-coroutine real and cpu time gathering
373 (Coro::State::enable_times).
374
3755.14 Wed Jun 24 01:37:48 CEST 2009
376 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
377 as this seems to have been a difficult concept (poll, sleep, idle,
378 idle_upto).
379 - add Coro::AnyEvent::readable/writable functions.
380 - clarify Coro::EV/Event/AnyEvent manpages.
381 - free per-thread global scalars in the thread calling ->cancel, to
382 avoid crashes when $_, $@ etc., are magical but some of those
383 had already been freed.
384 - "unexperimentalise" the callback interface for Coro::Semaphore.
385 - speed up ready queue management/context switching by using a linked
386 list instead of an array (~5-10%).
387 - implement "watch" command in Coro::Debug shells.
388 - for fun, implement time-slicing as an example in the manpage.
389 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
390 Coro::Event, use the normal AnyEvent handling instead of dieing
391 (the same is true for Coro::Handle).
392 - properly document Coro::EV::timed_io_once.
393 - avoid unneccessary ->cancel calls in Coro::Handle.
394 - maybe make it work on mingw32 with win32 backend
395 (based on patch by Yasuhiro Matsumoto).
396
3975.132 Fri May 29 09:00:39 CEST 2009
398 - do not keep a reference to the argument itself in
399 Coro::Semaphore::guard, as it could change later.
400 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
401 should support a prepare callback.
402
4035.131 Mon Mar 16 23:20:37 CET 2009
404 - implement and document Coro->suspend, Coro->resume.
405 - fix Coro::Select implementation to not (often) close
406 the passed file descriptors (testcase provided by pippijn).
407
4085.13 Mon Dec 15 21:51:42 CET 2008
409 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
410 - don't set diehook to C<undef> but instead to NULL, to avoid
411 spurious warnings.
412 - fix a lot of bugs in Coro::SemaphoreSet.
413 - Coro::SemaphoreSet will less often create a semaphore needlessly.
414 - add Coro::SemaphoreSet::count and wait methods.
415 - take advantage of the new Guard module.
416 - deprecate Coro::guard.
417 - try to fix the dreaded 01_unblock tests once more. I hate it when
418 testsuites need more fixing than the code they are supposed to test.
419 - croak in more cases when a required callback isn't resolvable.
420 - fix some minor issues in Coro::State->call/eval.
421 - use current coroutine context instead of a temporary one
422 when temporarily switching to another coroutine.
423 - do not call C-level on_destroy handlers during global destruction,
424 to avoid needless segfaults.
425
4265.12 Sun Dec 7 13:30:38 CET 2008
427 - add default config for MirOS, which seems to be a bug-to-bug
428 compatible fork of openbsd ("world domination by releasing
429 openbsd cvs before the openbsd folks do it" or so :).
430 - free_padlist did destroy the names pad, not good, but didn't
431 seem to bother perl - this could fix issues such as eval ""
432 inside a function called from multiple coroutines.
433 - use a different method to detect destruction time.
434 - be more careful when freeing padlists just before global
435 destruction.
436 - fixed and expanded the call/cc example.
437 - renamed _terminate to _coro_run.
438 - new method Coro::Channel->shutdown.
439 - try pthreads on openbsd <4.4 (broken sigaltstack, will
440 pthreads fare better?).
441 - be less picky about destroying "a" running coroutine.
442
4435.11 Tue Nov 25 21:49:05 CET 2008
444 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
445 working code with failed assertions, introducing more bugs than
446 it fixes, requiring elaborate workarounds :(
447
4485.1 Mon Nov 24 08:54:59 CET 2008
449 - wrote a small introductory tutorial - Coro::Intro.
450 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
451 - Coro::Select did errornously dup the file descriptors
452 and didn't work with all AnyEvent backends.
453 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
454 LWP data transfers.
455 - disassociate c contexts from coro objects - this is agruably more
456 correct, but mostly allows sharing of cctxs between coro and state
457 objects, for added memory savings and speed increases.
458 - bumped $Coro::POOL_RSS up to 32kb by default.
459 - no longer set the optype to OP_CUSTOM, as B::* understandably
460 doesn't like this very much (and we *are* a type of entersub).
461 - implement state cloning, just to prove that call/cc can be done.
462 - automatically load Coro::AnyEvent in Coro::Handle.
463 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
464 do not have this method (and don't need it either).
465 - speed up generic anyevent methods in Coro::Handle by using rouse
466 callbacks.
467 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
468 others. It also makes the debugger happier, as you can trace
469 through the idle threads now.
470 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
471 - eg/event was pretty broken.
472 - better 5.8.6 compatibility.
473
4745.0 Thu Nov 20 10:35:05 CET 2008
475 - NEW ARCHITECTURE: use the latest 4.x version if you experience
476 stability issues.
15 - bump API version to 7 - all dependents must be recompiled. 477 - bump API version to 7 - all dependents must be recompiled.
478 - removed timed_* functions - they were not being used anyways
479 and should be replaced by a more generic mechanism -
480 and were annoying to support anyways :)
481 - removed SemaphoreSet's waiter method - use sem method instead.
16 - Coro::Semaphore->adjust didn't correctly wake up enough waiters. 482 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
17 - async_pool did free a scalar value twice 483 - async_pool did free a scalar value twice
18 ("Attempt to unreference..."). 484 ("Attempt to unreference...").
19 - fix a longstanding bug where calling terminate on a coro that 485 - fix a longstanding bug where calling terminate on a coro that
20 was waiting for a semaphore that was just becoming available 486 was waiting for a semaphore that was just becoming available
21 would cause a deadlock (semaphore would get into a state where 487 would cause a deadlock (semaphore would get into a state where
22 it was available but waiters were waiting(. 488 it was available but waiters were still blocked).
23 - avoid deadlock in Coro::Channel if maxsize == 1 (Richard Hundt). 489 - calling throw on a coroutine that is waiting for a semaphore will
490 no longer make it acquire the semaphore (and thus leak a count).
24 - perl's process emulation is now not even theoretically supported 491 - perl's process emulation is now not even theoretically supported
25 anymore. 492 anymore.
493 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
494 conversion of callback-style to blocking-style.
495 - new methods $coro->schedule_to and ->cede_to, to specifically
496 schedule or cede to a specific coroutine.
497 - new function Coro::Semaphore::wait.
498 - use named constants in Coro::Channel (Richard Hundt).
26 - directly patch the entersub opcode calling SLF functions (cede, 499 - directly patch the entersub opcode calling SLF functions (cede,
27 transfer and so on). this does speed up context switching, but 500 transfer and so on). this does speed up context switching, but
28 more importanly, it frees us from the hardcoded behaviour of 501 more importanly, it frees us from the hardcoded behaviour of
29 entersub, so we might actually be able to return something from 502 entersub, so we might actually be able to return something from
30 those functions and atcually create new ones. 503 those functions and atcually create new ones.
31 - take advantage of __builtin_frame_address on gcc. 504 - take advantage of __builtin_frame_address on gcc.
32 - expose THX in coroapi (not sure whether this was a wise decision, 505 - expose THX in coroapi (not sure whether this was a wise decision,
33 as "threaded" perls are running at half speed anyways). 506 as "threaded" perls are running at half speed anyways).
34 - implement execute_slf (schedule-like-function) interface that makes 507 - implement execute_slf (schedule-like-function) interface that makes
35 it possible to implement schedule-like-functions in XS. 508 it possible to implement schedule-like-functions in XS.
36 - use new SLF interface to massively speed up Coro::EV by roughly a factor 509 - use new SLF interface to massively speed up Coro::EV by roughly a
37 of two. 510 factor of two.
38 - removed timed_down and timed_guard functions - they were not being used
39 anyways and should be replaced by a more generic mechanism - and were
40 annoying to support anyways :
41 - used new SLF interface to massively speed up Coro::Semaphore by a factor 511 - used new SLF interface to massively speed up Coro::Semaphore by a
42 of three. 512 factor of three.
513 - used new SLF interface to speed up Coro::AIO by roughly a factor of
514 four and reduce its memory usage considerably.
515 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
516 for a nice speedup and vastly more correct behaviour. Also implement
517 a new method "sem" to get at the underlying semaphore object.
518 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
519 (in comparison) 20-40% speedup.
520 - used new SLF interface to reimplement Coro::Signal gaining
521 some unknown (because I was too lazy), but certain, speedup, and also
522 making signals reliable for the first time.
523 - used new SLF interface and other optimisations to speed up async_pool
524 by a factor of two. It also doesn't rely on perl's exception mechanism
525 to exit anymore. The overhead for terminating an async_pool, coro over
526 a normal async is now very small.
527 - sped up coroutine creation/destruction by 40%.
43 - forgot to include Coro/libcoro/README in the dist for all these years. 528 - forgot to include Coro/libcoro/README in the dist for all these years.
44 - work around a freebsd pthreads bug (manual testcancel is required as 529 - work around a freebsd pthreads bug (manual testcancel is required as
45 pthread_cond_wait isn't a cancellation point on freebsd). 530 pthread_cond_wait isn't a cancellation point on freebsd).
531 - use new rouse functions to speed up and simplify Coro::BDB.
532 - make "prefer perl native functions" work with threaded perls.
533 - condense Coro::Debug ps output, hint at v and w flags.
534 - (libcoro) lots of minor cleanups and portability improvements.
535
5364.914 Wed Nov 19 12:54:18 CET 2008
537 - fix a disastrous bug in the readline optimisation
538 introduced in 4.801.
46 539
474.913 Sat Nov 15 07:58:28 CET 2008 5404.913 Sat Nov 15 07:58:28 CET 2008
48 - async_pool did free a scalar value twice 541 - async_pool did free a scalar value twice
49 ("Attempt to unreference..."). 542 ("Attempt to unreference...").
50 543
… …
67 - ->throw is now supported on Coro::State objects. 560 - ->throw is now supported on Coro::State objects.
68 - clean up cctx creation code a bit. 561 - clean up cctx creation code a bit.
69 - entersub is actually a UNOP, not a LOGOP (not a bugfix). 562 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
70 563
714.9 Sat Nov 8 17:45:27 CET 2008 5644.9 Sat Nov 8 17:45:27 CET 2008
72 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there). 565 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
73 - (libcoro) no longer leak threads in the experimental pthread backend, 566 - (libcoro) no longer leak threads in the experimental pthread backend,
74 also speed it up considerably. 567 also speed it up considerably.
75 - (libcoro) do not rely on makecontext passing void *'s unscathed. 568 - (libcoro) do not rely on makecontext passing void *'s unscathed.
76 - fix compiletime dependencies on libcoro in the Makefile. 569 - fix compiletime dependencies on libcoro in the Makefile.
77 - cctx_count wasn't always updated properly. 570 - cctx_count wasn't always updated properly.
… …
139 - remove debugging code related to MgPV_nolen_const, also try to 632 - remove debugging code related to MgPV_nolen_const, also try to
140 make it compile with perl 5.8.6 (yes, apple apparently loves 633 make it compile with perl 5.8.6 (yes, apple apparently loves
141 outdated software). Reported by John S. 634 outdated software). Reported by John S.
142 635
1434.744 Tue Jul 8 22:06:35 CEST 2008 6364.744 Tue Jul 8 22:06:35 CEST 2008
144 - correctly provide default DIE/WARN handlers as documented. 637 - correctly provide default DIE/WARN handlers as documented.
145 - also overwrite PL_vtbl_sigelem.svt_clear, even though current 638 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
146 implementations inside perl work fine for us. 639 implementations inside perl work fine for us.
147 640
1484.743 Mon Jun 16 00:21:57 CEST 2008 6414.743 Mon Jun 16 00:21:57 CEST 2008
149 - when using Coro::EV without running EV::loop it could 642 - when using Coro::EV without running EV::loop it could
… …
171 - sprinkle "no warnings" freely over everything, also suppress 664 - sprinkle "no warnings" freely over everything, also suppress
172 warnings for some other modules. 665 warnings for some other modules.
173 - fix typo in WSAEWOULDBLOCK. 666 - fix typo in WSAEWOULDBLOCK.
174 667
1754.72 Sun May 25 05:14:36 CEST 2008 6684.72 Sun May 25 05:14:36 CEST 2008
176 - tweak META.yaml a bit, unfortunately, there is no documented way 669 - tweak META.yaml a bit, unfortunately, there is no documented way
177 to have optional dependencies with CPAN. doh :( 670 to have optional dependencies with CPAN. doh :(
178 - avoid running some tests on windows because they would fail due to 671 - avoid running some tests on windows because they would fail due to
179 perl bug (broken fork, broken pipes...). 672 perl bug (broken fork, broken pipes...).
180 - work around perl on windows bugs where perl returns undocumented 673 - work around perl on windows bugs where perl returns undocumented
181 error codes for sysread, syswrite etc. by taking advantage 674 error codes for sysread, syswrite etc. by taking advantage
… …
185 - use unix domain sockets in testsuite to work around 678 - use unix domain sockets in testsuite to work around
186 common perl implementation bugs on widows (they are emulated by 679 common perl implementation bugs on widows (they are emulated by
187 tcp sockets on windows. ugh.) 680 tcp sockets on windows. ugh.)
188 681
1894.71 Sat May 24 20:01:27 CEST 2008 6824.71 Sat May 24 20:01:27 CEST 2008
190 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()"). 683 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
191 - take advantage of async name resolution of AnyEvent::Util. 684 - take advantage of async name resolution of AnyEvent::Util.
192 - work around brutal inet_aton override in Coro::LWP. 685 - work around brutal inet_aton override in Coro::LWP.
193 - take advantage of the readyhook in Coro::EV, for smoother 686 - take advantage of the readyhook in Coro::EV, for smoother
194 scheduling. 687 scheduling.
195 688
1964.7 Sun May 11 00:32:19 CEST 2008 6894.7 Sun May 11 00:32:19 CEST 2008
197 - completely reworked the Coro manpage. 690 - completely reworked the Coro manpage.
198 - added Coro::AnyEvent, generic event loop integration. 691 - added Coro::AnyEvent, generic event loop integration.
199 - implement cancel, ready and kill commands in Coro::Debug. 692 - implement cancel, ready and kill commands in Coro::Debug.
200 - document find_coro in Coro::Debug. 693 - document find_coro in Coro::Debug.
201 - incompatible change: rename has_stack to has_cctx. 694 - incompatible change: rename has_stack to has_cctx.
202 - Coro::AIO and Coro::BDB no longer force event model detection, 695 - Coro::AIO and Coro::BDB no longer force event model detection,
203 use AnyEvent::AIO and AnyEvent::BDB. 696 use AnyEvent::AIO and AnyEvent::BDB.
… …
327 820
3284.11 Thu Oct 11 02:40:24 CEST 2007 8214.11 Thu Oct 11 02:40:24 CEST 2007
329 - port to threaded perls. 822 - port to threaded perls.
330 823
3314.1 Thu Oct 11 02:38:16 CEST 2007 8244.1 Thu Oct 11 02:38:16 CEST 2007
332 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now 825 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
333 be local to each coro (see Coro::State). 826 be local to each coro (see Coro::State).
334 - incompatible change: for very deep reasons, cede and cede_notself 827 - incompatible change: for very deep reasons, cede and cede_notself
335 cannot return anything, so nothing will be returned. 828 cannot return anything, so nothing will be returned.
336 - possibly bring back 5.10 compatibility (untested). 829 - possibly bring back 5.10 compatibility (untested).
337 - work around stupid (and wrong) warning on 5.10 :(. 830 - work around stupid (and wrong) warning on 5.10 :(.
… …
409 but stateful semantics. 902 but stateful semantics.
410 - fixed a lot of typos in Coro.pm (patch submitted by David 903 - fixed a lot of typos in Coro.pm (patch submitted by David
411 Steinbrunner, which applied flawlessly). 904 Steinbrunner, which applied flawlessly).
412 905
4133.6 Sat Apr 14 17:13:31 CEST 2007 9063.6 Sat Apr 14 17:13:31 CEST 2007
414 - added some bugfixes to get eg/myhttpd working again. 907 - added some bugfixes to get eg/myhttpd working again.
415 - added Coro::Storable for often-cede'ing freeze/thaw. 908 - added Coro::Storable for often-cede'ing freeze/thaw.
416 - try to do a clean exit when a coroutine calls exit 909 - try to do a clean exit when a coroutine calls exit
417 (EXPERIMENTAL). 910 (EXPERIMENTAL).
418 - got rid of indirect call through _coro_init. 911 - got rid of indirect call through _coro_init.
419 - updated the partly antique examples in eg/ to 912 - updated the partly antique examples in eg/ to

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