ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/Coro/Changes
(Generate patch)

Comparing Coro/Changes (file contents):
Revision 1.121 by root, Thu Dec 15 18:08:55 2005 UTC vs.
Revision 1.577 by root, Tue Jul 12 22:32:27 2011 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2
3TODO: should explore PerlIO::coroaio (perl leaks like hell).
4TODO: channel->maxsize(newsize)?
5TODO: http://www.microsoft.com/msj/archive/s2ce.aspx
6
7 - "improve portability to Gentoo" - gentoo manages to put perl variables
8 in memory areas that are farther than 2gb apart, which the jit couldn't
9 handle and barfed. now it's just a bit slower on gentoo.
10
116.01 Sun Jul 3 12:31:14 CEST 2011
12 - workarounds are good, but the test for whether pthreads are used
13 was not good. thisone should be better.
14 - check differently whether gcc generates cfi instructions itself.
15
166.0 Wed Jun 29 19:43:35 CEST 2011
17 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
18 destroyed and cleaned up automatically (e.g. async { schedule }).
19 - implement a JIT compiler for part of the thread switch code,
20 which gives a 50% speed improvement on threaded perls, and
21 about 4% on non-thraeded perls (so threaded perls now finally
22 reach about half the speed of non-threaded perls).
23 - slightly modernise Coro::Intro, add section about rouse functions.
24 - avoid DEFSV and ERRSV, giving another 10% improvement
25 in thread switching.
26 - Coro::State->is_destroyed is now called is_zombie.
27 - implement a Coro->safe_cancel method that might fail, but
28 cancels in a "safer" way if it succeeds.
29 - add preliminary support for DEBUGGING perls.
30 - get rid of two hash-accesses when initialising a new Coro - this
31 speeds up coro creation by almost a factor of two.
32 - croak when a coro that is being cancelled tries to block
33 (e.g. while executing a guard block), instead of crashing or
34 deadlocking.
35 - use a more robust and also faster method to identify Coro::State
36 objects - speeds up everything a bit.
37 - implement Coro->cancel in XS for a 20% speed improvement, and to
38 be able to implement mutual cancellation.
39 - speed up context switches by a percent or two by more efficiently
40 allocating context stack entries.
41 - implement Coro->join and Coro->on_destroy in XS for a speedup and
42 a reduction in memory use.
43 - cancelling a coro while it itself is cancelling another coro is
44 now supported and working, instead of triggering an assertion.
45 - be a bit more crash-resistant when calling (buggy) on_destroy
46 callbacks (best effort).
47 - move on_destroy into the slf_frame, to allow extension slf
48 functions to have destructors.
49 - get rid if coro refcounting - simply crash in other interpreter
50 threads by nulling the pointers on clone.
51 - simplify warn/die hook handling when loading Coro - the convoluted
52 logic seems to be no longer neccessary.
53 - use libecb instead of our own home-grown gcc hacks.
54 - document alternatives to Coro::LWP. Please use them :)
55 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
56 sigaltstack. Really. wine suffers from it, erlang suffers from it,
57 and it's known since at least 2006.
58
595.372 Wed Feb 23 06:14:30 CET 2011
60 - apparently mingw doesn't provide a working gettimeofday, try to
61 work around that by relying on Time::HiRes (indirectly brought to
62 my attention by Max Maischein).
63 - fix some portability issues when Time::HiRes was used.
64
655.371 Mon Feb 21 14:36:08 CET 2011
66 - backport to windows process emulation code again.
67
685.37 Sat Feb 19 07:49:44 CET 2011
69 - add a big "Coro thread life cycle" section to "man Coro".
70 - try a tentative workaround against the breakage that 5.13 has
71 introduced without depreciation period. sigh.
72 - no longer use Time::HiRes if gettimeofday is available, which
73 saves quite a lot of memory.
74
755.36 Sun Feb 13 05:33:41 CET 2011
76 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
77 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
78 method call.
79 - undocument Coro::Timer::sleep and obsolete whole module.
80 - optimise Coro::Timer::timeout memory and cpu usage.
81 - slightly updated Coro::Intro for recent changes.
82 - do not initialise PL_dirty anymore.
83
845.25 Thu Nov 11 01:08:39 CET 2010
85 - try a different approach on netbsd - netbsd 5 finally has marginally
86 working pthreads, but still broken ucontext/sigaltstack.
87 - openbsd 4.8 finally got their act together, Coro works out of the box
88 with asm, setjmp and pthreads (no change, just informational).
89
905.24 Sat Oct 23 11:27:12 CEST 2010
91 - port to the EV 4.0 API.
92 - work around bugs in mingw32, making strawberry perl work
93 out of the box.
94 - correctly modify Coro::AIO function prototypes
95 so that they reflect the "no optional parameters" rule.
96 - "ported" libcoro to C++.
97
985.23 Mon May 17 18:50:42 CEST 2010
99 - be more resistant to ordering changes when initialising
100 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
101 Waldorf).
102 - document that perl 5.12 deliberately removed support for cloning.
103
1045.22 Wed Apr 14 03:55:35 CEST 2010
105 - correctly return udnef on errors in Coro::Handle::read/write
106 (testcase by Marc Mims).
107 - convert Coro::Util into a "perl compatibility wrapper" - the functions
108 are less useful now, but are drop-in replacements for existing
109 functions, listing better alternatives in the documentation. This also
110 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
111 with Coro::Util::inet_aton.
112 - do not override $Coro::idle unconditionally in Coro.pm, as other
113 modules could have provided their own idle coro already
114 (for exmaple, Coro::AnyEvent).
115 - fix Coro::Util::gethost* functions.
116 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
117
1185.21 Wed Dec 16 07:19:51 CET 2009
119 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
120 together.
121 - add some examples on how to combine other event loops with Coro in
122 Coro::AnyEvent, and how to run it (and not to block). Seems to be
123 the most common source of confusion.
124 - try to catch people naively blocking in an event callback.
125 - work around the perl filehandle bug issue in conjunction with
126 older common::sense (as indirectly pointed out by ZSystem).
127 - clarify the "not from signal handlers" section.
128
1295.2 Sun Oct 4 14:54:24 CEST 2009
130 - Coro::Storable destroyed the prototypes of the functions it wrapped.
131 - export rouse_cb and rouse_wait by default now.
132 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
133 - new method $state->swap_sv.
134 - added section on "windows process emulation" to the manpage,
135 after a not-so-fruitful (nor-friendly) "discussion" with chip
136 salzenberg (discussion implies arguments, but his only arguments
137 were ad-hominems, one wonders why he started it in the first
138 place). I hope this explains it well enough for him to understand,
139 and maybe well enough for others to understand.
140 - use common::sense everywhere now.
141 - idle callbacks are no longer supported, use idle coros instead.
142 - print a thread listing when a deadlock is detected.
143
1445.17 Sat Aug 22 23:09:31 CEST 2009
145 - work around a bug in the perl debugger causing crashes
146 when running under the debugger by marking _pool_handler as nodebug.
147 - speed up Coro::async considerably.
148 - try some hacks to get netbsd to work "more often" - their broken
149 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
150 - convert Coro to AE 5.0 API.
151
1525.162 Tue Jul 28 04:04:03 CEST 2009
153 - perl 5.8.2 is now minimum requirement.
154 - skip t/19_handle.t on broken windows perls.
155
1565.161 Wed Jul 22 04:47:38 CEST 2009
157 - Coro::AnyEvent::poll could have a different prototype when EV was
158 used as backend (analyzed by Tatsuhiko Miyagawa).
159 - Coro::AnyEvent errornously initialised the event loop when loaded,
160 not on demand.
161 - try to workaround rare */t/01_unblock.t failures.
162
1635.16 Tue Jul 21 01:44:37 CEST 2009
164 - Coro::AnyEvent failed to hook into the event loop
165 when no threads had been readied between detecting
166 the event loop and actually running it.
167 - considerably speed up Coro::Select by taking avdantage
168 of AnyEvent > 4.8 and some other optimisations.
169 - implement paragraph readline mode in Coro::Handle
170 (based on patches by Zsbán Ambrus).
171 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
172 and analyzed by Yasuhiro MATSUMOTO).
173 - clarified libcoro license and copyright.
174 - someone stole my EXTRA_META!!!
175 - implement Coro::Select::patch_pp_sselect and it's brother,
176 for hardcode select overriding.
177
1785.151 Mon Jul 6 05:41:57 CEST 2009
179 - backport to windows process emulation code again (patch by
180 Yasuhiro MATSUMOTO).
181 - slightly update Coro::MakeMaker.
182
1835.15 Tue Jun 30 10:28:06 CEST 2009
184 - deprecate Coro::Socket, document how to get ipv6 support via
185 AnyEvent::Socket instead.
186 - implement signal->wait ($cb) interface, similar to semaphores.
187 - work around SvOK not supporting getmagic, so we have to getmagic
188 to test for undef :/ (reported by Matthias Waldorf).
189 - load Coro::AnyEvent in all modules using AnyEvent.
190 - work around perl corrupting our internal data structures,
191 reported by Tokuhiro Matsuno.
192 - enable per-coroutine real and cpu time gathering
193 (Coro::State::enable_times).
194
1955.14 Wed Jun 24 01:37:48 CEST 2009
196 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
197 as this seems to have been a difficult concept (poll, sleep, idle,
198 idle_upto).
199 - add Coro::AnyEvent::readable/writable functions.
200 - clarify Coro::EV/Event/AnyEvent manpages.
201 - free per-thread global scalars in the thread calling ->cancel, to
202 avoid crashes when $_, $@ etc., are magical but some of those
203 had already been freed.
204 - "unexperimentalise" the callback interface for Coro::Semaphore.
205 - speed up ready queue management/context switching by using a linked
206 list instead of an array (~5-10%).
207 - implement "watch" command in Coro::Debug shells.
208 - for fun, implement time-slicing as an example in the manpage.
209 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
210 Coro::Event, use the normal AnyEvent handling instead of dieing
211 (the same is true for Coro::Handle).
212 - properly document Coro::EV::timed_io_once.
213 - avoid unneccessary ->cancel calls in Coro::Handle.
214 - maybe make it work on mingw32 with win32 backend
215 (based on patch by Yasuhiro Matsumoto).
216
2175.132 Fri May 29 09:00:39 CEST 2009
218 - do not keep a reference to the argument itself in
219 Coro::Semaphore::guard, as it could change later.
220 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
221 should support a prepare callback.
222
2235.131 Mon Mar 16 23:20:37 CET 2009
224 - implement and document Coro->suspend, Coro->resume.
225 - fix Coro::Select implementation to not (often) close
226 the passed file descriptors (testcase provided by pippijn).
227
2285.13 Mon Dec 15 21:51:42 CET 2008
229 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
230 - don't set diehook to C<undef> but instead to NULL, to avoid
231 spurious warnings.
232 - fix a lot of bugs in Coro::SemaphoreSet.
233 - Coro::SemaphoreSet will less often create a semaphore needlessly.
234 - add Coro::SemaphoreSet::count and wait methods.
235 - take advantage of the new Guard module.
236 - deprecate Coro::guard.
237 - try to fix the dreaded 01_unblock tests once more. I hate it when
238 testsuites need more fixing than the code they are supposed to test.
239 - croak in more cases when a required callback isn't resolvable.
240 - fix some minor issues in Coro::State->call/eval.
241 - use current coroutine context instead of a temporary one
242 when temporarily switching to another coroutine.
243 - do not call C-level on_destroy handlers during global destruction,
244 to avoid needless segfaults.
245
2465.12 Sun Dec 7 13:30:38 CET 2008
247 - add default config for MirOS, which seems to be a bug-to-bug
248 compatible fork of openbsd ("world domination by releasing
249 openbsd cvs before the openbsd folks do it" or so :).
250 - free_padlist did destroy the names pad, not good, but didn't
251 seem to bother perl - this could fix issues such as eval ""
252 inside a function called from multiple coroutines.
253 - use a different method to detect destruction time.
254 - be more careful when freeing padlists just before global
255 destruction.
256 - fixed and expanded the call/cc example.
257 - renamed _terminate to _coro_run.
258 - new method Coro::Channel->shutdown.
259 - try pthreads on openbsd <4.4 (broken sigaltstack, will
260 pthreads fare better?).
261 - be less picky about destroying "a" running coroutine.
262
2635.11 Tue Nov 25 21:49:05 CET 2008
264 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
265 working code with failed assertions, introducing more bugs than
266 it fixes, requiring elaborate workarounds :(
267
2685.1 Mon Nov 24 08:54:59 CET 2008
269 - wrote a small introductory tutorial - Coro::Intro.
270 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
271 - Coro::Select did errornously dup the file descriptors
272 and didn't work with all AnyEvent backends.
273 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
274 LWP data transfers.
275 - disassociate c contexts from coro objects - this is agruably more
276 correct, but mostly allows sharing of cctxs between coro and state
277 objects, for added memory savings and speed increases.
278 - bumped $Coro::POOL_RSS up to 32kb by default.
279 - no longer set the optype to OP_CUSTOM, as B::* understandably
280 doesn't like this very much (and we *are* a type of entersub).
281 - implement state cloning, just to prove that call/cc can be done.
282 - automatically load Coro::AnyEvent in Coro::Handle.
283 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
284 do not have this method (and don't need it either).
285 - speed up generic anyevent methods in Coro::Handle by using rouse
286 callbacks.
287 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
288 others. It also makes the debugger happier, as you can trace
289 through the idle threads now.
290 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
291 - eg/event was pretty broken.
292 - better 5.8.6 compatibility.
293
2945.0 Thu Nov 20 10:35:05 CET 2008
295 - NEW ARCHITECTURE: use the latest 4.x version if you experience
296 stability issues.
297 - bump API version to 7 - all dependents must be recompiled.
298 - removed timed_* functions - they were not being used anyways
299 and should be replaced by a more generic mechanism -
300 and were annoying to support anyways :)
301 - removed SemaphoreSet's waiter method - use sem method instead.
302 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
303 - async_pool did free a scalar value twice
304 ("Attempt to unreference...").
305 - fix a longstanding bug where calling terminate on a coro that
306 was waiting for a semaphore that was just becoming available
307 would cause a deadlock (semaphore would get into a state where
308 it was available but waiters were still blocked).
309 - calling throw on a coroutine that is waiting for a semaphore will
310 no longer make it acquire the semaphore (and thus leak a count).
311 - perl's process emulation is now not even theoretically supported
312 anymore.
313 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
314 conversion of callback-style to blocking-style.
315 - new methods $coro->schedule_to and ->cede_to, to specifically
316 schedule or cede to a specific coroutine.
317 - new function Coro::Semaphore::wait.
318 - use named constants in Coro::Channel (Richard Hundt).
319 - directly patch the entersub opcode calling SLF functions (cede,
320 transfer and so on). this does speed up context switching, but
321 more importanly, it frees us from the hardcoded behaviour of
322 entersub, so we might actually be able to return something from
323 those functions and atcually create new ones.
324 - take advantage of __builtin_frame_address on gcc.
325 - expose THX in coroapi (not sure whether this was a wise decision,
326 as "threaded" perls are running at half speed anyways).
327 - implement execute_slf (schedule-like-function) interface that makes
328 it possible to implement schedule-like-functions in XS.
329 - use new SLF interface to massively speed up Coro::EV by roughly a
330 factor of two.
331 - used new SLF interface to massively speed up Coro::Semaphore by a
332 factor of three.
333 - used new SLF interface to speed up Coro::AIO by roughly a factor of
334 four and reduce its memory usage considerably.
335 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
336 for a nice speedup and vastly more correct behaviour. Also implement
337 a new method "sem" to get at the underlying semaphore object.
338 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
339 (in comparison) 20-40% speedup.
340 - used new SLF interface to reimplement Coro::Signal gaining
341 some unknown (because I was too lazy), but certain, speedup, and also
342 making signals reliable for the first time.
343 - used new SLF interface and other optimisations to speed up async_pool
344 by a factor of two. It also doesn't rely on perl's exception mechanism
345 to exit anymore. The overhead for terminating an async_pool, coro over
346 a normal async is now very small.
347 - sped up coroutine creation/destruction by 40%.
348 - forgot to include Coro/libcoro/README in the dist for all these years.
349 - work around a freebsd pthreads bug (manual testcancel is required as
350 pthread_cond_wait isn't a cancellation point on freebsd).
351 - use new rouse functions to speed up and simplify Coro::BDB.
352 - make "prefer perl native functions" work with threaded perls.
353 - condense Coro::Debug ps output, hint at v and w flags.
354 - (libcoro) lots of minor cleanups and portability improvements.
355
3564.914 Wed Nov 19 12:54:18 CET 2008
357 - fix a disastrous bug in the readline optimisation
358 introduced in 4.801.
359
3604.913 Sat Nov 15 07:58:28 CET 2008
361 - async_pool did free a scalar value twice
362 ("Attempt to unreference...").
363
3644.912 Thu Nov 13 18:31:23 CET 2008
365 - minor cleanups.
366 - use much larger stacks on linux and perl < 5.8.8.
367 - Coro::Debug::new_unix_server did not unlink the socket
368 when destroyed.
369
3704.911 Tue Nov 11 04:26:17 CET 2008
371 - "port" to threaded perls.
372
3734.91 Mon Nov 10 05:36:38 CET 2008
374 - the ->throw exception object no longer leaks.
375 - creating a new cctx leaked a scopestack entry (memleak).
376 - new coroutines didn't get created with a zero flags field
377 (unknown impact).
378 - calling ->throw on a not-yet-started coroutine should now work
379 instead of being ignored.
380 - ->throw is now supported on Coro::State objects.
381 - clean up cctx creation code a bit.
382 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
383
3844.9 Sat Nov 8 17:45:27 CET 2008
385 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
386 - (libcoro) no longer leak threads in the experimental pthread backend,
387 also speed it up considerably.
388 - (libcoro) do not rely on makecontext passing void *'s unscathed.
389 - fix compiletime dependencies on libcoro in the Makefile.
390 - cctx_count wasn't always updated properly.
391 - Coro::State::cctx_stacksize wasn't applied correctly.
392 - new function Coro::State::cctx_max_idle.
393 - the default max number of idle C contexts is now 4.
394 - (libcoro) try harder to get _setjmp/_longjmp.
395 - (libcoro) cleanup and extend the libcoro API to officially
396 allow the creation of empty source contexts.
397 - very experimental workaround for the totally broken netbsd platform.
398 - tried to hack around openbsd bugs.
399
4004.804 Wed Nov 5 16:36:00 CET 2008
401 - Coro::Debug::new_unix_server would not create a non-blocking listening
402 socket, sometimes causing freezes.
403 - (libcoro) fix misaligned stack points for setjmp and assembly
404 methods, which can cause crashes on x86/x86_64 with a sufficiently
405 aggressive compiler.
406 - new function: Coro::Debug::new_tcp_server.
407 - move ->throw into the Coro class because it only works on coro objects.
408
4094.803 Mon Nov 3 17:16:12 CET 2008
410 - (libcoro) use a global asm statement to become independent of gcc
411 otpimisations for CORO_ASM (thanks to pippijn for the idea).
412 - try to workaround yet another broken bsd, this time dragonfly.
413
4144.802 Thu Oct 30 10:56:12 CET 2008
415 - support -fno-omit-frame-pointer on x86 with the assembly method.
416 - tune 01_unblock.t tests a bit.
417
4184.801 Wed Oct 22 18:33:37 CEST 2008
419 - improve readline speed for very long "lines".
420 - backport to 5.8.8.
421
4224.8 Thu Oct 2 13:34:40 CEST 2008
423 - new function Coro::AIO::aio_wait.
424 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
425 - greatly speed up and reduce memory usage of Coro::AIO requests.
426 - implement some other µ-optimisations.
427
4284.749 Mon Sep 29 14:40:12 CEST 2008
429 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
430
4314.748 Sat Sep 27 14:03:19 CEST 2008
432 - implement, but do not document, PerlIO::cede(granularity).
433 - Coro::Storable forgot to wrap Storable::pstore.
434 - work around the multitude of leaks and memory corruption
435 bugs in PerlIO::via by using our own C-level perliol. As a side
436 effect, Coro::Storable is now much, much, much faster.
437
4384.747 Tue Sep 23 01:59:41 CEST 2008
439 - fix a per-cv memleak (one empty array was leaked per
440 code reference).
441 - avoid a crash in coro->call|rss when the coroutine was already
442 destroyed (most noticably when using Coro::Debug::ps :)
443 - also protect *Storable::FILE.
444 - push up default storable granularity to 20ms.
445
4464.746 Sun Sep 21 03:22:20 CEST 2008
447 - be more insistent on locking Storable against reentrancy
448 in Coro::Storable.
449 - move swap_def?v and throw to Coro::State, as documented.
450
4514.745 Thu Jul 24 00:14:38 CEST 2008
452 - remove debugging code related to MgPV_nolen_const, also try to
453 make it compile with perl 5.8.6 (yes, apple apparently loves
454 outdated software). Reported by John S.
455
4564.744 Tue Jul 8 22:06:35 CEST 2008
457 - correctly provide default DIE/WARN handlers as documented.
458 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
459 implementations inside perl work fine for us.
460
4614.743 Mon Jun 16 00:21:57 CEST 2008
462 - when using Coro::EV without running EV::loop it could
463 result in busy-waiting for events, this has been fixed.
464 - reduce codesize and improve performance by using EV_DEFAULT_UC.
465
4664.742 Sat May 31 14:10:21 CEST 2008
467 - implement a workaround for (some) perl <5.8.8 versions.
468 - require EV 3.3+.
469
4704.741 Fri May 30 23:33:09 CEST 2008
471 - tell netbsd how utterly broken their imitation of an OS is
472 and refuse to build by default if pthreads are in use.
473 - switch to "s" method on all bsd's by default, as their ucontext
474 stuff seems just too broken.
475 - fix a bug in Coro::Select.
476
4774.74 Thu May 29 20:05:31 CEST 2008
478 - do not test Coro::LWP for lack of dependencies.
479 - do not test Coro::Select for lack of working perls.
480
4814.73 Thu May 29 2008
482 - fix a bug in Coro::EV which would cause it to block despite
483 there being runnable coroutines.
484 - sprinkle "no warnings" freely over everything, also suppress
485 warnings for some other modules.
486 - fix typo in WSAEWOULDBLOCK.
487
4884.72 Sun May 25 05:14:36 CEST 2008
489 - tweak META.yaml a bit, unfortunately, there is no documented way
490 to have optional dependencies with CPAN. doh :(
491 - avoid running some tests on windows because they would fail due to
492 perl bug (broken fork, broken pipes...).
493 - work around perl on windows bugs where perl returns undocumented
494 error codes for sysread, syswrite etc. by taking advantage
495 of AnyEvent's workaround for that problem.
496 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
497 a common perl implementation bug on windows.
498 - use unix domain sockets in testsuite to work around
499 common perl implementation bugs on widows (they are emulated by
500 tcp sockets on windows. ugh.)
501
5024.71 Sat May 24 20:01:27 CEST 2008
503 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
504 - take advantage of async name resolution of AnyEvent::Util.
505 - work around brutal inet_aton override in Coro::LWP.
506 - take advantage of the readyhook in Coro::EV, for smoother
507 scheduling.
508
5094.7 Sun May 11 00:32:19 CEST 2008
510 - completely reworked the Coro manpage.
511 - added Coro::AnyEvent, generic event loop integration.
512 - implement cancel, ready and kill commands in Coro::Debug.
513 - document find_coro in Coro::Debug.
514 - incompatible change: rename has_stack to has_cctx.
515 - Coro::AIO and Coro::BDB no longer force event model detection,
516 use AnyEvent::AIO and AnyEvent::BDB.
517
5184.6 Sat Apr 26 10:05:14 CEST 2008
519 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
520 by the Coro module. It was a mistake to have it in the first place.
521 - (experimental) support for activestate perl 5.10 (method "w").
522 - (experimental) support for strawberry perl (method "a").
523 - coro_sigelem_set did not return a value although it had to,
524 actual impact unknown.
525
5264.51 Mon Apr 14 13:28:27 CEST 2008
527 - make it compile again on 5.8.
528
5294.50 Thu Apr 10 09:43:17 CEST 2008
530 - I did it twice! (see 4.49).
531
5324.49 Sun Apr 6 21:23:31 CEST 2008
533 - grr, instead of compiling the recent changes on 5.10 only they
534 were compiled on 5.8 only.
535
5364.48 Sun Apr 6 20:36:46 CEST 2008
537 - allow coroutine switches during eval's under 5.10.x, as it seems
538 the parser is a per-interpreter option now, so this is safe
539 (this might fix the odd crashing bug).
540 - drop support for 5.9.x versions: they are dead, jim.
541
5424.47 Sun Apr 6 00:37:52 CEST 2008
543 - force cctx allocation on API calls: we know we need to force one
544 and gcc actually manages to confuse our heuristic nowadays,
545 leading to crashes and worse.
546 - document force_cctx.
547
5484.46 Fri Apr 4 22:05:43 CEST 2008
549 - upgrade libcoro, resulting in pthread-backend (which was only created
550 to fulfill the rules of the programming languages shootout).
551
5524.45 Thu Mar 13 11:55:36 CET 2008
553 - fix a file leaking bug in eg/mhyttpd that would allow
554 downloading of any file (reported by oesi).
555 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
556 (also add testcase).
557 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
558 apparently having loads of fun with that).
559 - implement $state->swap_defsv, ->swap_defav and document ->throw.
560
5614.4 Wed Feb 13 16:44:29 CET 2008
562 - only assume .cfi pseudo isns exist on GNU/Linux.
563 - add get_timed method to Coro::Channels.
564 - fixed Coro::Debug manpage.
565 - perl 5.11 compatbility improvement based on patch by
566 Andreas König.
567
5684.37 Sun Jan 20 11:25:23 CET 2008
569 - soften the check for an active parser for perl 5.10 (avoiding
570 "Coro::State::transfer called while parsing" in many cases).
571
5724.36 Sun Jan 13 10:53:56 CET 2008
573 - reset diehook when terminating from an async_pool as to not
574 trigger any __DIE__ handlers.
575
5764.35 Sun Jan 13 04:14:13 CET 2008
577 - "bt" debug command now displays any exceptions
578 from longmess and also skips the innermost
579 stackframes, giving more useufl output.
580 - allow backtraces in coroutines blocked in Coro::EV,
581 at a <1% speed hit.
582 - handle localising of $SIG{__WARN__} and __DIE__
583 properly (with a proper amount of dirty hacking).
584
5854.34 Sat Dec 22 17:49:53 CET 2007
586 - upgrade to EV version 2.0 API.
587
5884.33 Mon Dec 17 08:36:12 CET 2007
589 - make Coro::AIO etc. loadable in the absence of EV.
590
5914.32 Mon Dec 17 07:46:02 CET 2007
592 - majorly improved Coro::Handle's performance with Coro::EV.
593 - implemented the until now mythical Coro::BDB module.
594 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
595
5964.31 Wed Dec 5 12:32:39 CET 2007
597 - remove warn statement form Coro::Util.
598
5994.3 Tue Dec 4 20:33:14 CET 2007
600 - calls to the idle function could cause stack corruption
601 when the stack changed.
602 - do no longer rely on the presence of EV::DNS if EV is used
603 (because it is gone), but instead take avdantage of EV::ADNS
604 if available.
605 - add ($) prototypes to all functions in Coro::Storable.
606 - use a conventional (safer) idle callback in Coro::EV.
607 - do accept quickly in Coro::Debug to avoid endless loops.
608
6094.22 Fri Nov 30 16:04:04 CET 2007
610 - really use optimised versions for Event and EV in Coro::Util
611 and Coro::Handle.
612
6134.21 Sun Nov 25 10:48:59 CET 2007
614 - fix a spurious memory read.
615 - Coro::EV no longer keeps the eventloop "alive".
616
6174.2 Fri Nov 9 20:47:05 CET 2007
618 - enable/disable tracing from a new coroutine, not a pooled one.
619 - fix a memleak in Coro::Event.
620 - removed killall call from fork_eval.
621 - made sure store_fd is already loaded so that fork_eval
622 does not have to parse autoload in each subprocess.
623 - only use assembly method if -O switch is in $Config{optimize}.
624 - add (optional) Coro::EV module, so far the best event loop module
625 directly supported by Coro.
626 - if the event model is EV, use EV::DNS to resolve
627 stuff in Coro::Util.
628 - don't get confused by multiple event notifications in Coro::Handle.
629 - initial support for EV (libevent interface).
630 - require Event and EV using configure_requires, to force their existance.
631
6324.13 Wed Oct 24 07:26:45 CEST 2007
633 - add Coro::Storable::blocking_thaw.
634 - use a vastly more complicated technique to localise
635 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
636 - use a coroutine for the idle callback Coro::Event,
637 instead of running Event in the current coroutine context.
638 This also catches recursive invocations.
639 - actually report fork errors in gethostbyname and inet_aton.
640
6414.11 Thu Oct 11 02:40:24 CEST 2007
642 - port to threaded perls.
643
6444.1 Thu Oct 11 02:38:16 CEST 2007
645 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
646 be local to each coro (see Coro::State).
647 - incompatible change: for very deep reasons, cede and cede_notself
648 cannot return anything, so nothing will be returned.
649 - possibly bring back 5.10 compatibility (untested).
650 - work around stupid (and wrong) warning on 5.10 :(.
651 - overlay the saved state over the context stack. This saves
652 a few hundred bytes per coroutine on average and also
653 speeds up context switching a bit.
654 - further tune default stack sizes.
655 - (more) correctly calculate stack usage in coro_rss.
656 - Coro::Storable::blocking_* did not properly lock
657 resulting in races between coroutines.
658 - added Coro::Storable::guard.
659 - stopping to trace a coroutine could destroy the cctx of
660 an unrelated coroutine.
661 - explain the relationship between Perl and C coroutines in
662 more detail in Coro::State.
663 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
664 causing a fork per resolve. This also affected Coro::Socket.
665 - switch to a separate stack in $coro->call/eval to avoid
666 invalidating pointers.
667
6684.03 Sat Oct 6 21:24:00 CEST 2007
669 - added Coro::throw method.
670 - minor code cleanups.
671
6724.02 Sat Oct 6 02:36:47 CEST 2007
673 - fix a very minor per-coroutine memleak (a single codereference).
674 - fixed a bug where the currently in-use c context would be freed
675 prematurely (can happen only when programs change the stacksize
676 or use tracing).
677 - tracing can no longer keep a coro alive after it terminated.
678 - do static branch prediction in the common path for gcc. gives
679 about 2-5% speed improvement here.
680
6814.01 Fri Oct 5 22:10:49 CEST 2007
682 - instead of recreating *a* standard output handle we simply
683 use STDOUT, which is faster and hopefully more robust.
684
6854.0 Fri Oct 5 12:56:00 CEST 2007
686 - incompatibly changed Coro::Storable::freeze.
687 - major new feature: added Coro::Debug, for interactive coroutine
688 debugging, tracing and much more.
689 - major bug fix: unbelievable, but true: $_, $/ and many other
690 "saved" variables actually weren't being saved. This has been fixed,
691 of course, while increasing performance while losing all the save
692 flags.
693 - save flags are gone, and all the api functions dealing with them.
694 - added Coro::Semaphore::adjust.
695 - added Coro::Util::fork_eval.
696 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
697 - added Coro::killall.
698 - reduce initial stack sizes to allow for "micro-coroutines".
699 - better async_pool resource management, moved parts of async_pool
700 handling to XS (major speed improvement).
701 - actually croak before modifying important data structures.
702 - refuse to transfer while compiling.
703 - possibly support eval EXPR better now.
704 - enable assembly per default on linux+bsd x86+amd64.
705 - all internal members were renamed _something for easier subclassing.
706 - many minor tweaks.
707
7083.63 Wed May 16 14:10:06 CEST 2007
709 - implement handcoded assembly for x86/amd64 SVR ABI.
710
7113.62 Fri Apr 27 21:36:06 CEST 2007
712 - upgrade libcoro (which might set unwind info correctly).
713 - change default on linux to setjmp/longjmp.
714
7153.61 Thu Apr 19 12:36:18 CEST 2007
716 - Coro::Storable caused an endless loop when thawing invalid
717 pst's sometimes.
718 - use a Semaphore in Coro::Storable, as Storable doesn't
719 seem to be reentrant (although it is documented to
720 be threadsafe...).
721 - fix Coro::Signal to bring back the original unreliable
722 but stateful semantics.
723 - fixed a lot of typos in Coro.pm (patch submitted by David
724 Steinbrunner, which applied flawlessly).
725
7263.6 Sat Apr 14 17:13:31 CEST 2007
727 - added some bugfixes to get eg/myhttpd working again.
728 - added Coro::Storable for often-cede'ing freeze/thaw.
729 - try to do a clean exit when a coroutine calls exit
730 (EXPERIMENTAL).
731 - got rid of indirect call through _coro_init.
732 - updated the partly antique examples in eg/ to
733 work again and be a bit less magic, too.
734 - fixed Coro::Signal semantics to work as documented again.
735
7363.55 Sun Mar 25 01:20:47 CET 2007
737 - add SAVE_DEFFH to save the default filehandle and enable
738 it by default.
739 - finally move socket-operations from Coro::Socket to Coro::Handle
740 to be able to unblock foreign sockets.
741 - add Coro::State::save_also and guarded_save.
742 - add count accessor to Coro::Semaphore.
743 - add Coro::State::cctx_stacksize.
744 - just for the fun of it, do not rely on implicit context,
745 which can dramatically improve performance, but people
746 using windows-process-emulation perls do not care much about
747 performance.
748
7493.51 Sun Mar 4 14:18:04 CET 2007
750 - fixed a problem when you weakened references to Coro::State's
751 (patch by Yuval Kogman).
752
7533.501 Wed Feb 28 12:44:07 CET 2007
754 - rename some global symbols as macosx from hell redefines
755 them without asking.
756
7573.5 Tue Feb 13 20:22:53 CET 2007
758 - do AnyEvent model detection earlier, avoiding problems
759 caused by first using AnyEvent and later Coro::Event.
760 - implement and document Coro::Event event objects.
761 - fix a potential problem in Coro::Event causing crashes.
762 - initialise PL_comppad when creating a new coroutine,
763 avoids crashes on early coro destruction.
764
7653.41 Mon Jan 22 19:19:49 CET 2007
766 - readline on Coro::Handle did not support undefined $/,
767 nor did it deliver partial lines on EOF or error.
768 - implement malloc fallback for stack allocation because
769 stupid broken idiotic OSX has a stupid broken
770 idiotic fits-the-whole-os mmap "implementation" and
771 my dick feels longer if Coro is portable even to
772 obsolete platforms.
773
7743.4 Fri Jan 19 21:52:54 CET 2007
775 - remove t/09_timer.t, as it isn't really testing much
776 but was rather flaky in practise.
777 - async_pool coro would keep arguments and callback alive until
778 it was reused.
779 - cancellation of a coroutine could cause spurious idle calls
780 in cede_notself.
781
7823.3 Sat Jan 6 03:45:00 CET 2007
783 - implement $coro->on_destroy.
784 - Coro::Event blocking semantics have been changed,
785 documented and - hopefully - improved.
786 - fix nice adding, not subtracting, from priority.
787 - fix ->prio and api_is_ready (patch by Mark Hinds).
788 - fixed an assert ("... == prev__cctx->idle_te")
789 that could errronously trigger.
790 - fix various large and small memleaks.
791 - use a (hopefully) more stable cancel implementation
792 that immediately frees the coroutine data.
793 - cede/cede_notself return a status now.
794 - added Coro::guard function.
795 - added a global coroutine pool for jobs (on my machine,
796 I can create and execute 48k simple coros/s with async,
797 and 128k coros with async_pool).
798 - Coro::AIO now uses the coroutine priority as io priority.
799
8003.2 Fri Dec 22 05:07:09 CET 2006
801 - improve portability to slightly older perls.
802 - use cleaner coroutine destruction.
803 - simplify configuration for users.
804 - optionally (unrecommended) prefer perl functions over
805 their coro replacements.
806
8073.11 Tue Dec 5 13:11:24 CET 2006
808 - fixed some bogus assert's, but as perl.h disables assert even
809 without NDEBUG (thank you very much), not too many people should
810 notice (that did include myself). Andreas König noticed, though :)
811 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
812 it. Also noticed by Andreas König :)
813 - save/restore tainted status.
814 - verified to pass the testsuite on my 5.9.5.
815
8163.1 Mon Dec 4 23:03:40 CET 2006
817 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
818 - incompatible change: transfer flags are now per-state.
819 - give a better error message on deadlock.
820 - document Coro::nready.
821 - enhanced testsuite.
822
8233.01 Sun Dec 3 23:47:42 CET 2006
824 - forgot to include Coro::Timer.
825
8263.0 Sun Dec 3 22:57:25 CET 2006
827 - the "FINALLY COMPLETELY STABLE" release (coming soon:
828 the "FAMOUS LAST WORDS" release).
829 - implement a new stack sharing algorithm, which uses a stack
830 pool (size currently hardcoded).
831 - make stack sharing mandatory (it no longer uses a heuristic).
832 - eval/die no longer cause weird problems under heavy use.
833 - Coro::Event could cause livelocks if it was used but
834 no Coro::Event watchers were used.
835 - Coro::Event now uses asynccheck as prepare does not
836 check for changed watchers.
837 - Coro::Event allows multiple waiting coros and will wake up one
838 per event.
839 - Coro::Event should be cleaner and more efficient now.
840 - new utility function Coro::unblock_sub.
841 - document the sad fact that Event is no longer reentrant.
842 - putting a coroutine into the ready queue twice could under
843 some circumstances lead to stack corruption.
844 - minor incompatibility: subclassing Coro::State is supported
845 directly now without going through a _coro_state member.
846 - state/coro switching is much faster now.
847 - very minor optimisations and code/documentation cleanup.
848 - avoid problems due to compiler inlining.
849 - removed timers from Coro::Timer -> use AnyEvent instead.
850 - replaced Coro::idle coroutine by (cleaner) idle handler.
851 - updated to newest libcoro.
852 - implement enhanced support for valgrind.
853 - implement is_ready and return value for ready.
854 - removed Coro::Cont, it was a misnomer (it's generators),
855 and it was somewhat annoying to get it right. Will come back
856 if somebody asks for it :)
857 - many ->wait methods and Coro::Event could return
858 spuriously without the event having happened.
859
8602.5 Tue Nov 7 12:22:33 CET 2006
861 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
862 use AnyEvent, moved them to Coro/.
863 - added Coro::LWP which contains all the uglyness required to
864 make LWP non-blocking.
865 - should work with perl 5.9.x now (Andreas König made me do it).
866 - fixed another bug in Coro::Select when the timeout was undef.
867 - reuse PL_start_env for all coros, saves some memory per coroutine.
868 - manage PL_top_env differently, hopefully to avoid panic: top_env.
869 - timeout argument was not properly used in Coro::Socket.
870 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
871 - emulate undocumented(!) functionality of IO::Socket required
872 by LWP(!!).
873 - updated eg/lwp to work with newer lwp's.
874 - remove "FATAL: uncaught exception" prefix. Coroutines that die
875 kill the whole process, just as exceptions in the main "coroutine"
876 did already.
877
8782.1 Wed Nov 1 23:01:13 CET 2006
879 - fix a long-standing bug in Coro::Select where select with
880 zero timeout would instead change the current default filehandle.
881 - use a simpler and hopefully more robust way to clone padlists
882 (uses less memory and a perl function instead of our own).
883 - coro can now create a stack guard area on many architectures.
884 - Coro::AIO properly reexports additional functions from IO::AIO.
885 - updated libcoro with a workaround for OS X,
886 pach and testing by Michael Schwern.
887
8882.0 Tue Oct 24 05:47:17 CEST 2006
889 - support additional aio requests in Coro::AIO.
890
8911.9 (never properly released due to a glitch)
892
8931.8 Thu Feb 2 00:59:06 CET 2006
894 - applied suggested patch by SAMV to avoid problems during stupid
895 mark & sweep gc run.
896 - applied patch by Scott Walters for 5.9.3 compatibility.
897
8981.7 Tue Dec 27 01:41:58 CET 2005
899 - added Coro::AIO, a thin wrapper around IO::AIO.
900 - improved Makefile.PL explanations.
2 901
31.6 Mon Dec 12 21:30:05 CET 2005 9021.6 Mon Dec 12 21:30:05 CET 2005
4 - additionally save PM_curpm might fix as-of-yet 903 - additionally save PM_curpm might fix as-of-yet
5 unseen problems with regex matches being attributed to the 904 unseen problems with regex matches being attributed to the
6 wrong package. 905 wrong package.

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines