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Comparing Coro/Changes (file contents):
Revision 1.144 by root, Mon Nov 6 19:56:26 2006 UTC vs.
Revision 1.515 by root, Tue Jul 21 03:39:58 2009 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
32.5 3TODO: should explore PerlIO::coroaio (perl leaks like hell).
4TODO: maybe implement a default message channel, very much like Erlang's
5 actor model (which is cool in a lot of important aspects (failures!),
6 but very lacking in others (higher level ipc)).
7TODO: unready_all
8TODO: myhttpd header parsing
9TODO: channel->maxsize(newsize)?
10
11 - Coro::AnyEvent errornously initialised the event loop when loaded,
12 not on demand.
13
145.16 Tue Jul 21 01:44:37 CEST 2009
15 - Coro::AnyEvent failed to hook into the event loop
16 when no threads had been readied between detecting
17 the event loop and actually running it.
18 - considerably speed up Coro::Select by taking avdantage
19 of AnyEvent > 4.8 and some other optimisations.
20 - implement paragraph readline mode in Coro::Handle
21 (based on patches by Zsbán Ambrus).
22 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
23 and analyzed by Yasuhiro MATSUMOTO).
24 - clarified libcoro license and copyright.
25 - someone stole my EXTRA_META!!!
26 - implement Coro::Select::patch_pp_sselect and it's brother,
27 for hardcode select overriding.
28
295.151 Mon Jul 6 05:41:57 CEST 2009
30 - backport to windows process emulation code again (patch by
31 Yasuhiro MATSUMOTO).
32 - slightly update Coro::MakeMaker.
33
345.15 Tue Jun 30 10:28:06 CEST 2009
35 - deprecate Coro::Socket, document how to get ipv6 support via
36 AnyEvent::Socket instead.
37 - implement signal->wait ($cb) interface, similar to semaphores.
38 - work around SvOK not supporting getmagic, so we have to getmagic
39 to test for undef :/ (reported by Matthias Waldorf).
40 - load Coro::AnyEvent in all modules using AnyEvent.
41 - work around perl corrupting our internal data structures,
42 reported by Tokuhiro Matsuno.
43 - enable per-coroutine real and cpu time gathering
44 (Coro::State::enable_times).
45
465.14 Wed Jun 24 01:37:48 CEST 2009
47 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
48 as this seems to have been a difficult concept (poll, sleep, idle,
49 idle_upto).
50 - add Coro::AnyEvent::readable/writable functions.
51 - clarify Coro::EV/Event/AnyEvent manpages.
52 - free per-thread global scalars in the thread calling ->cancel, to
53 avoid crashes when $_, $@ etc., are magical but some of those
54 had already been freed.
55 - "unexperimentalise" the callback interface for Coro::Semaphore.
56 - speed up ready queue management/context switching by using a linked
57 list instead of an array (~5-10%).
58 - implement "watch" command in Coro::Debug shells.
59 - for fun, implement time-slicing as an example in the manpage.
60 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
61 Coro::Event, use the normal AnyEvent handling instead of dieing
62 (the same is true for Coro::Handle).
63 - properly document Coro::EV::timed_io_once.
64 - avoid unneccessary ->cancel calls in Coro::Handle.
65 - maybe make it work on mingw32 with win32 backend
66 (based on patch by Yasuhiro Matsumoto).
67
685.132 Fri May 29 09:00:39 CEST 2009
69 - do not keep a reference to the argument itself in
70 Coro::Semaphore::guard, as it could change later.
71 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
72 should support a prepare callback.
73
745.131 Mon Mar 16 23:20:37 CET 2009
75 - implement and document Coro->suspend, Coro->resume.
76 - fix Coro::Select implementation to not (often) close
77 the passed file descriptors (testcase provided by pippijn).
78
795.13 Mon Dec 15 21:51:42 CET 2008
80 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
81 - don't set diehook to C<undef> but instead to NULL, to avoid
82 spurious warnings.
83 - fix a lot of bugs in Coro::SemaphoreSet.
84 - Coro::SemaphoreSet will less often create a semaphore needlessly.
85 - add Coro::SemaphoreSet::count and wait methods.
86 - take advantage of the new Guard module.
87 - deprecate Coro::guard.
88 - try to fix the dreaded 01_unblock tests once more. I hate it when
89 testsuites need more fixing than the code they are supposed to test.
90 - croak in more cases when a required callback isn't resolvable.
91 - fix some minor issues in Coro::State->call/eval.
92 - use current coroutine context instead of a temporary one
93 when temporarily switching to another coroutine.
94 - do not call C-level on_destroy handlers during global destruction,
95 to avoid needless segfaults.
96
975.12 Sun Dec 7 13:30:38 CET 2008
98 - add default config for MirOS, which seems to be a bug-to-bug
99 compatible fork of openbsd ("world domination by releasing
100 openbsd cvs before the openbsd folks do it" or so :).
101 - free_padlist did destroy the names pad, not good, but didn't
102 seem to bother perl - this could fix issues such as eval ""
103 inside a function called from multiple coroutines.
104 - use a different method to detect destruction time.
105 - be more careful when freeing padlists just before global
106 destruction.
107 - fixed and expanded the call/cc example.
108 - renamed _terminate to _coro_run.
109 - new method Coro::Channel->shutdown.
110 - try pthreads on openbsd <4.4 (broken sigaltstack, will
111 pthreads fare better?).
112 - be less picky about destroying "a" running coroutine.
113
1145.11 Tue Nov 25 21:49:05 CET 2008
115 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
116 working code with failed assertions, introducing more bugs than
117 it fixes, requiring elaborate workarounds :(
118
1195.1 Mon Nov 24 08:54:59 CET 2008
120 - wrote a small introductory tutorial - Coro::Intro.
121 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
122 - Coro::Select did errornously dup the file descriptors
123 and didn't work with all AnyEvent backends.
124 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
125 LWP data transfers.
126 - disassociate c contexts from coro objects - this is agruably more
127 correct, but mostly allows sharing of cctxs between coro and state
128 objects, for added memory savings and speed increases.
129 - bumped $Coro::POOL_RSS up to 32kb by default.
130 - no longer set the optype to OP_CUSTOM, as B::* understandably
131 doesn't like this very much (and we *are* a type of entersub).
132 - implement state cloning, just to prove that call/cc can be done.
133 - automatically load Coro::AnyEvent in Coro::Handle.
134 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
135 do not have this method (and don't need it either).
136 - speed up generic anyevent methods in Coro::Handle by using rouse
137 callbacks.
138 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
139 others. It also makes the debugger happier, as you can trace
140 through the idle threads now.
141 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
142 - eg/event was pretty broken.
143 - better 5.8.6 compatibility.
144
1455.0 Thu Nov 20 10:35:05 CET 2008
146 - NEW ARCHITECTURE: use the latest 4.x version if you experience
147 stability issues.
148 - bump API version to 7 - all dependents must be recompiled.
149 - removed timed_* functions - they were not being used anyways
150 and should be replaced by a more generic mechanism -
151 and were annoying to support anyways :)
152 - removed SemaphoreSet's waiter method - use sem method instead.
153 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
154 - async_pool did free a scalar value twice
155 ("Attempt to unreference...").
156 - fix a longstanding bug where calling terminate on a coro that
157 was waiting for a semaphore that was just becoming available
158 would cause a deadlock (semaphore would get into a state where
159 it was available but waiters were still blocked).
160 - calling throw on a coroutine that is waiting for a semaphore will
161 no longer make it acquire the semaphore (and thus leak a count).
162 - perl's process emulation is now not even theoretically supported
163 anymore.
164 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
165 conversion of callback-style to blocking-style.
166 - new methods $coro->schedule_to and ->cede_to, to specifically
167 schedule or cede to a specific coroutine.
168 - new function Coro::Semaphore::wait.
169 - use named constants in Coro::Channel (Richard Hundt).
170 - directly patch the entersub opcode calling SLF functions (cede,
171 transfer and so on). this does speed up context switching, but
172 more importanly, it frees us from the hardcoded behaviour of
173 entersub, so we might actually be able to return something from
174 those functions and atcually create new ones.
175 - take advantage of __builtin_frame_address on gcc.
176 - expose THX in coroapi (not sure whether this was a wise decision,
177 as "threaded" perls are running at half speed anyways).
178 - implement execute_slf (schedule-like-function) interface that makes
179 it possible to implement schedule-like-functions in XS.
180 - use new SLF interface to massively speed up Coro::EV by roughly a
181 factor of two.
182 - used new SLF interface to massively speed up Coro::Semaphore by a
183 factor of three.
184 - used new SLF interface to speed up Coro::AIO by roughly a factor of
185 four and reduce its memory usage considerably.
186 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
187 for a nice speedup and vastly more correct behaviour. Also implement
188 a new method "sem" to get at the underlying semaphore object.
189 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
190 (in comparison) 20-40% speedup.
191 - used new SLF interface to reimplement Coro::Signal gaining
192 some unknown (because I was too lazy), but certain, speedup, and also
193 making signals reliable for the first time.
194 - used new SLF interface and other optimisations to speed up async_pool
195 by a factor of two. It also doesn't rely on perl's exception mechanism
196 to exit anymore. The overhead for terminating an async_pool, coro over
197 a normal async is now very small.
198 - sped up coroutine creation/destruction by 40%.
199 - forgot to include Coro/libcoro/README in the dist for all these years.
200 - work around a freebsd pthreads bug (manual testcancel is required as
201 pthread_cond_wait isn't a cancellation point on freebsd).
202 - use new rouse functions to speed up and simplify Coro::BDB.
203 - make "prefer perl native functions" work with threaded perls.
204 - condense Coro::Debug ps output, hint at v and w flags.
205 - (libcoro) lots of minor cleanups and portability improvements.
206
2074.914 Wed Nov 19 12:54:18 CET 2008
208 - fix a disastrous bug in the readline optimisation
209 introduced in 4.801.
210
2114.913 Sat Nov 15 07:58:28 CET 2008
212 - async_pool did free a scalar value twice
213 ("Attempt to unreference...").
214
2154.912 Thu Nov 13 18:31:23 CET 2008
216 - minor cleanups.
217 - use much larger stacks on linux and perl < 5.8.8.
218 - Coro::Debug::new_unix_server did not unlink the socket
219 when destroyed.
220
2214.911 Tue Nov 11 04:26:17 CET 2008
222 - "port" to threaded perls.
223
2244.91 Mon Nov 10 05:36:38 CET 2008
225 - the ->throw exception object no longer leaks.
226 - creating a new cctx leaked a scopestack entry (memleak).
227 - new coroutines didn't get created with a zero flags field
228 (unknown impact).
229 - calling ->throw on a not-yet-started coroutine should now work
230 instead of being ignored.
231 - ->throw is now supported on Coro::State objects.
232 - clean up cctx creation code a bit.
233 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
234
2354.9 Sat Nov 8 17:45:27 CET 2008
236 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
237 - (libcoro) no longer leak threads in the experimental pthread backend,
238 also speed it up considerably.
239 - (libcoro) do not rely on makecontext passing void *'s unscathed.
240 - fix compiletime dependencies on libcoro in the Makefile.
241 - cctx_count wasn't always updated properly.
242 - Coro::State::cctx_stacksize wasn't applied correctly.
243 - new function Coro::State::cctx_max_idle.
244 - the default max number of idle C contexts is now 4.
245 - (libcoro) try harder to get _setjmp/_longjmp.
246 - (libcoro) cleanup and extend the libcoro API to officially
247 allow the creation of empty source contexts.
248 - very experimental workaround for the totally broken netbsd platform.
249 - tried to hack around openbsd bugs.
250
2514.804 Wed Nov 5 16:36:00 CET 2008
252 - Coro::Debug::new_unix_server would not create a non-blocking listening
253 socket, sometimes causing freezes.
254 - (libcoro) fix misaligned stack points for setjmp and assembly
255 methods, which can cause crashes on x86/x86_64 with a sufficiently
256 aggressive compiler.
257 - new function: Coro::Debug::new_tcp_server.
258 - move ->throw into the Coro class because it only works on coro objects.
259
2604.803 Mon Nov 3 17:16:12 CET 2008
261 - (libcoro) use a global asm statement to become independent of gcc
262 otpimisations for CORO_ASM (thanks to pippijn for the idea).
263 - try to workaround yet another broken bsd, this time dragonfly.
264
2654.802 Thu Oct 30 10:56:12 CET 2008
266 - support -fno-omit-frame-pointer on x86 with the assembly method.
267 - tune 01_unblock.t tests a bit.
268
2694.801 Wed Oct 22 18:33:37 CEST 2008
270 - improve readline speed for very long "lines".
271 - backport to 5.8.8.
272
2734.8 Thu Oct 2 13:34:40 CEST 2008
274 - new function Coro::AIO::aio_wait.
275 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
276 - greatly speed up and reduce memory usage of Coro::AIO requests.
277 - implement some other µ-optimisations.
278
2794.749 Mon Sep 29 14:40:12 CEST 2008
280 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
281
2824.748 Sat Sep 27 14:03:19 CEST 2008
283 - implement, but do not document, PerlIO::cede(granularity).
284 - Coro::Storable forgot to wrap Storable::pstore.
285 - work around the multitude of leaks and memory corruption
286 bugs in PerlIO::via by using our own C-level perliol. As a side
287 effect, Coro::Storable is now much, much, much faster.
288
2894.747 Tue Sep 23 01:59:41 CEST 2008
290 - fix a per-cv memleak (one empty array was leaked per
291 code reference).
292 - avoid a crash in coro->call|rss when the coroutine was already
293 destroyed (most noticably when using Coro::Debug::ps :)
294 - also protect *Storable::FILE.
295 - push up default storable granularity to 20ms.
296
2974.746 Sun Sep 21 03:22:20 CEST 2008
298 - be more insistent on locking Storable against reentrancy
299 in Coro::Storable.
300 - move swap_def?v and throw to Coro::State, as documented.
301
3024.745 Thu Jul 24 00:14:38 CEST 2008
303 - remove debugging code related to MgPV_nolen_const, also try to
304 make it compile with perl 5.8.6 (yes, apple apparently loves
305 outdated software). Reported by John S.
306
3074.744 Tue Jul 8 22:06:35 CEST 2008
308 - correctly provide default DIE/WARN handlers as documented.
309 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
310 implementations inside perl work fine for us.
311
3124.743 Mon Jun 16 00:21:57 CEST 2008
313 - when using Coro::EV without running EV::loop it could
314 result in busy-waiting for events, this has been fixed.
315 - reduce codesize and improve performance by using EV_DEFAULT_UC.
316
3174.742 Sat May 31 14:10:21 CEST 2008
318 - implement a workaround for (some) perl <5.8.8 versions.
319 - require EV 3.3+.
320
3214.741 Fri May 30 23:33:09 CEST 2008
322 - tell netbsd how utterly broken their imitation of an OS is
323 and refuse to build by default if pthreads are in use.
324 - switch to "s" method on all bsd's by default, as their ucontext
325 stuff seems just too broken.
326 - fix a bug in Coro::Select.
327
3284.74 Thu May 29 20:05:31 CEST 2008
329 - do not test Coro::LWP for lack of dependencies.
330 - do not test Coro::Select for lack of working perls.
331
3324.73 Thu May 29 2008
333 - fix a bug in Coro::EV which would cause it to block despite
334 there being runnable coroutines.
335 - sprinkle "no warnings" freely over everything, also suppress
336 warnings for some other modules.
337 - fix typo in WSAEWOULDBLOCK.
338
3394.72 Sun May 25 05:14:36 CEST 2008
340 - tweak META.yaml a bit, unfortunately, there is no documented way
341 to have optional dependencies with CPAN. doh :(
342 - avoid running some tests on windows because they would fail due to
343 perl bug (broken fork, broken pipes...).
344 - work around perl on windows bugs where perl returns undocumented
345 error codes for sysread, syswrite etc. by taking advantage
346 of AnyEvent's workaround for that problem.
347 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
348 a common perl implementation bug on windows.
349 - use unix domain sockets in testsuite to work around
350 common perl implementation bugs on widows (they are emulated by
351 tcp sockets on windows. ugh.)
352
3534.71 Sat May 24 20:01:27 CEST 2008
354 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
355 - take advantage of async name resolution of AnyEvent::Util.
356 - work around brutal inet_aton override in Coro::LWP.
357 - take advantage of the readyhook in Coro::EV, for smoother
358 scheduling.
359
3604.7 Sun May 11 00:32:19 CEST 2008
361 - completely reworked the Coro manpage.
362 - added Coro::AnyEvent, generic event loop integration.
363 - implement cancel, ready and kill commands in Coro::Debug.
364 - document find_coro in Coro::Debug.
365 - incompatible change: rename has_stack to has_cctx.
366 - Coro::AIO and Coro::BDB no longer force event model detection,
367 use AnyEvent::AIO and AnyEvent::BDB.
368
3694.6 Sat Apr 26 10:05:14 CEST 2008
370 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
371 by the Coro module. It was a mistake to have it in the first place.
372 - (experimental) support for activestate perl 5.10 (method "w").
373 - (experimental) support for strawberry perl (method "a").
374 - coro_sigelem_set did not return a value although it had to,
375 actual impact unknown.
376
3774.51 Mon Apr 14 13:28:27 CEST 2008
378 - make it compile again on 5.8.
379
3804.50 Thu Apr 10 09:43:17 CEST 2008
381 - I did it twice! (see 4.49).
382
3834.49 Sun Apr 6 21:23:31 CEST 2008
384 - grr, instead of compiling the recent changes on 5.10 only they
385 were compiled on 5.8 only.
386
3874.48 Sun Apr 6 20:36:46 CEST 2008
388 - allow coroutine switches during eval's under 5.10.x, as it seems
389 the parser is a per-interpreter option now, so this is safe
390 (this might fix the odd crashing bug).
391 - drop support for 5.9.x versions: they are dead, jim.
392
3934.47 Sun Apr 6 00:37:52 CEST 2008
394 - force cctx allocation on API calls: we know we need to force one
395 and gcc actually manages to confuse our heuristic nowadays,
396 leading to crashes and worse.
397 - document force_cctx.
398
3994.46 Fri Apr 4 22:05:43 CEST 2008
400 - upgrade libcoro, resulting in pthread-backend (which was only created
401 to fulfill the rules of the programming languages shootout).
402
4034.45 Thu Mar 13 11:55:36 CET 2008
404 - fix a file leaking bug in eg/mhyttpd that would allow
405 downloading of any file (reported by oesi).
406 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
407 (also add testcase).
408 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
409 apparently having loads of fun with that).
410 - implement $state->swap_defsv, ->swap_defav and document ->throw.
411
4124.4 Wed Feb 13 16:44:29 CET 2008
413 - only assume .cfi pseudo isns exist on GNU/Linux.
414 - add get_timed method to Coro::Channels.
415 - fixed Coro::Debug manpage.
416 - perl 5.11 compatbility improvement based on patch by
417 Andreas König.
418
4194.37 Sun Jan 20 11:25:23 CET 2008
420 - soften the check for an active parser for perl 5.10 (avoiding
421 "Coro::State::transfer called while parsing" in many cases).
422
4234.36 Sun Jan 13 10:53:56 CET 2008
424 - reset diehook when terminating from an async_pool as to not
425 trigger any __DIE__ handlers.
426
4274.35 Sun Jan 13 04:14:13 CET 2008
428 - "bt" debug command now displays any exceptions
429 from longmess and also skips the innermost
430 stackframes, giving more useufl output.
431 - allow backtraces in coroutines blocked in Coro::EV,
432 at a <1% speed hit.
433 - handle localising of $SIG{__WARN__} and __DIE__
434 properly (with a proper amount of dirty hacking).
435
4364.34 Sat Dec 22 17:49:53 CET 2007
437 - upgrade to EV version 2.0 API.
438
4394.33 Mon Dec 17 08:36:12 CET 2007
440 - make Coro::AIO etc. loadable in the absence of EV.
441
4424.32 Mon Dec 17 07:46:02 CET 2007
443 - majorly improved Coro::Handle's performance with Coro::EV.
444 - implemented the until now mythical Coro::BDB module.
445 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
446
4474.31 Wed Dec 5 12:32:39 CET 2007
448 - remove warn statement form Coro::Util.
449
4504.3 Tue Dec 4 20:33:14 CET 2007
451 - calls to the idle function could cause stack corruption
452 when the stack changed.
453 - do no longer rely on the presence of EV::DNS if EV is used
454 (because it is gone), but instead take avdantage of EV::ADNS
455 if available.
456 - add ($) prototypes to all functions in Coro::Storable.
457 - use a conventional (safer) idle callback in Coro::EV.
458 - do accept quickly in Coro::Debug to avoid endless loops.
459
4604.22 Fri Nov 30 16:04:04 CET 2007
461 - really use optimised versions for Event and EV in Coro::Util
462 and Coro::Handle.
463
4644.21 Sun Nov 25 10:48:59 CET 2007
465 - fix a spurious memory read.
466 - Coro::EV no longer keeps the eventloop "alive".
467
4684.2 Fri Nov 9 20:47:05 CET 2007
469 - enable/disable tracing from a new coroutine, not a pooled one.
470 - fix a memleak in Coro::Event.
471 - removed killall call from fork_eval.
472 - made sure store_fd is already loaded so that fork_eval
473 does not have to parse autoload in each subprocess.
474 - only use assembly method if -O switch is in $Config{optimize}.
475 - add (optional) Coro::EV module, so far the best event loop module
476 directly supported by Coro.
477 - if the event model is EV, use EV::DNS to resolve
478 stuff in Coro::Util.
479 - don't get confused by multiple event notifications in Coro::Handle.
480 - initial support for EV (libevent interface).
481 - require Event and EV using configure_requires, to force their existance.
482
4834.13 Wed Oct 24 07:26:45 CEST 2007
484 - add Coro::Storable::blocking_thaw.
485 - use a vastly more complicated technique to localise
486 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
487 - use a coroutine for the idle callback Coro::Event,
488 instead of running Event in the current coroutine context.
489 This also catches recursive invocations.
490 - actually report fork errors in gethostbyname and inet_aton.
491
4924.11 Thu Oct 11 02:40:24 CEST 2007
493 - port to threaded perls.
494
4954.1 Thu Oct 11 02:38:16 CEST 2007
496 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
497 be local to each coro (see Coro::State).
498 - incompatible change: for very deep reasons, cede and cede_notself
499 cannot return anything, so nothing will be returned.
500 - possibly bring back 5.10 compatibility (untested).
501 - work around stupid (and wrong) warning on 5.10 :(.
502 - overlay the saved state over the context stack. This saves
503 a few hundred bytes per coroutine on average and also
504 speeds up context switching a bit.
505 - further tune default stack sizes.
506 - (more) correctly calculate stack usage in coro_rss.
507 - Coro::Storable::blocking_* did not properly lock
508 resulting in races between coroutines.
509 - added Coro::Storable::guard.
510 - stopping to trace a coroutine could destroy the cctx of
511 an unrelated coroutine.
512 - explain the relationship between Perl and C coroutines in
513 more detail in Coro::State.
514 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
515 causing a fork per resolve. This also affected Coro::Socket.
516 - switch to a separate stack in $coro->call/eval to avoid
517 invalidating pointers.
518
5194.03 Sat Oct 6 21:24:00 CEST 2007
520 - added Coro::throw method.
521 - minor code cleanups.
522
5234.02 Sat Oct 6 02:36:47 CEST 2007
524 - fix a very minor per-coroutine memleak (a single codereference).
525 - fixed a bug where the currently in-use c context would be freed
526 prematurely (can happen only when programs change the stacksize
527 or use tracing).
528 - tracing can no longer keep a coro alive after it terminated.
529 - do static branch prediction in the common path for gcc. gives
530 about 2-5% speed improvement here.
531
5324.01 Fri Oct 5 22:10:49 CEST 2007
533 - instead of recreating *a* standard output handle we simply
534 use STDOUT, which is faster and hopefully more robust.
535
5364.0 Fri Oct 5 12:56:00 CEST 2007
537 - incompatibly changed Coro::Storable::freeze.
538 - major new feature: added Coro::Debug, for interactive coroutine
539 debugging, tracing and much more.
540 - major bug fix: unbelievable, but true: $_, $/ and many other
541 "saved" variables actually weren't being saved. This has been fixed,
542 of course, while increasing performance while losing all the save
543 flags.
544 - save flags are gone, and all the api functions dealing with them.
545 - added Coro::Semaphore::adjust.
546 - added Coro::Util::fork_eval.
547 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
548 - added Coro::killall.
549 - reduce initial stack sizes to allow for "micro-coroutines".
550 - better async_pool resource management, moved parts of async_pool
551 handling to XS (major speed improvement).
552 - actually croak before modifying important data structures.
553 - refuse to transfer while compiling.
554 - possibly support eval EXPR better now.
555 - enable assembly per default on linux+bsd x86+amd64.
556 - all internal members were renamed _something for easier subclassing.
557 - many minor tweaks.
558
5593.63 Wed May 16 14:10:06 CEST 2007
560 - implement handcoded assembly for x86/amd64 SVR ABI.
561
5623.62 Fri Apr 27 21:36:06 CEST 2007
563 - upgrade libcoro (which might set unwind info correctly).
564 - change default on linux to setjmp/longjmp.
565
5663.61 Thu Apr 19 12:36:18 CEST 2007
567 - Coro::Storable caused an endless loop when thawing invalid
568 pst's sometimes.
569 - use a Semaphore in Coro::Storable, as Storable doesn't
570 seem to be reentrant (although it is documented to
571 be threadsafe...).
572 - fix Coro::Signal to bring back the original unreliable
573 but stateful semantics.
574 - fixed a lot of typos in Coro.pm (patch submitted by David
575 Steinbrunner, which applied flawlessly).
576
5773.6 Sat Apr 14 17:13:31 CEST 2007
578 - added some bugfixes to get eg/myhttpd working again.
579 - added Coro::Storable for often-cede'ing freeze/thaw.
580 - try to do a clean exit when a coroutine calls exit
581 (EXPERIMENTAL).
582 - got rid of indirect call through _coro_init.
583 - updated the partly antique examples in eg/ to
584 work again and be a bit less magic, too.
585 - fixed Coro::Signal semantics to work as documented again.
586
5873.55 Sun Mar 25 01:20:47 CET 2007
588 - add SAVE_DEFFH to save the default filehandle and enable
589 it by default.
590 - finally move socket-operations from Coro::Socket to Coro::Handle
591 to be able to unblock foreign sockets.
592 - add Coro::State::save_also and guarded_save.
593 - add count accessor to Coro::Semaphore.
594 - add Coro::State::cctx_stacksize.
595 - just for the fun of it, do not rely on implicit context,
596 which can dramatically improve performance, but people
597 using windows-process-emulation perls do not care much about
598 performance.
599
6003.51 Sun Mar 4 14:18:04 CET 2007
601 - fixed a problem when you weakened references to Coro::State's
602 (patch by Yuval Kogman).
603
6043.501 Wed Feb 28 12:44:07 CET 2007
605 - rename some global symbols as macosx from hell redefines
606 them without asking.
607
6083.5 Tue Feb 13 20:22:53 CET 2007
609 - do AnyEvent model detection earlier, avoiding problems
610 caused by first using AnyEvent and later Coro::Event.
611 - implement and document Coro::Event event objects.
612 - fix a potential problem in Coro::Event causing crashes.
613 - initialise PL_comppad when creating a new coroutine,
614 avoids crashes on early coro destruction.
615
6163.41 Mon Jan 22 19:19:49 CET 2007
617 - readline on Coro::Handle did not support undefined $/,
618 nor did it deliver partial lines on EOF or error.
619 - implement malloc fallback for stack allocation because
620 stupid broken idiotic OSX has a stupid broken
621 idiotic fits-the-whole-os mmap "implementation" and
622 my dick feels longer if Coro is portable even to
623 obsolete platforms.
624
6253.4 Fri Jan 19 21:52:54 CET 2007
626 - remove t/09_timer.t, as it isn't really testing much
627 but was rather flaky in practise.
628 - async_pool coro would keep arguments and callback alive until
629 it was reused.
630 - cancellation of a coroutine could cause spurious idle calls
631 in cede_notself.
632
6333.3 Sat Jan 6 03:45:00 CET 2007
634 - implement $coro->on_destroy.
635 - Coro::Event blocking semantics have been changed,
636 documented and - hopefully - improved.
637 - fix nice adding, not subtracting, from priority.
638 - fix ->prio and api_is_ready (patch by Mark Hinds).
639 - fixed an assert ("... == prev__cctx->idle_te")
640 that could errronously trigger.
641 - fix various large and small memleaks.
642 - use a (hopefully) more stable cancel implementation
643 that immediately frees the coroutine data.
644 - cede/cede_notself return a status now.
645 - added Coro::guard function.
646 - added a global coroutine pool for jobs (on my machine,
647 I can create and execute 48k simple coros/s with async,
648 and 128k coros with async_pool).
649 - Coro::AIO now uses the coroutine priority as io priority.
650
6513.2 Fri Dec 22 05:07:09 CET 2006
652 - improve portability to slightly older perls.
653 - use cleaner coroutine destruction.
654 - simplify configuration for users.
655 - optionally (unrecommended) prefer perl functions over
656 their coro replacements.
657
6583.11 Tue Dec 5 13:11:24 CET 2006
659 - fixed some bogus assert's, but as perl.h disables assert even
660 without NDEBUG (thank you very much), not too many people should
661 notice (that did include myself). Andreas König noticed, though :)
662 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
663 it. Also noticed by Andreas König :)
664 - save/restore tainted status.
665 - verified to pass the testsuite on my 5.9.5.
666
6673.1 Mon Dec 4 23:03:40 CET 2006
668 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
669 - incompatible change: transfer flags are now per-state.
670 - give a better error message on deadlock.
671 - document Coro::nready.
672 - enhanced testsuite.
673
6743.01 Sun Dec 3 23:47:42 CET 2006
675 - forgot to include Coro::Timer.
676
6773.0 Sun Dec 3 22:57:25 CET 2006
678 - the "FINALLY COMPLETELY STABLE" release (coming soon:
679 the "FAMOUS LAST WORDS" release).
680 - implement a new stack sharing algorithm, which uses a stack
681 pool (size currently hardcoded).
682 - make stack sharing mandatory (it no longer uses a heuristic).
683 - eval/die no longer cause weird problems under heavy use.
684 - Coro::Event could cause livelocks if it was used but
685 no Coro::Event watchers were used.
686 - Coro::Event now uses asynccheck as prepare does not
687 check for changed watchers.
688 - Coro::Event allows multiple waiting coros and will wake up one
689 per event.
690 - Coro::Event should be cleaner and more efficient now.
691 - new utility function Coro::unblock_sub.
692 - document the sad fact that Event is no longer reentrant.
693 - putting a coroutine into the ready queue twice could under
694 some circumstances lead to stack corruption.
695 - minor incompatibility: subclassing Coro::State is supported
696 directly now without going through a _coro_state member.
697 - state/coro switching is much faster now.
698 - very minor optimisations and code/documentation cleanup.
699 - avoid problems due to compiler inlining.
700 - removed timers from Coro::Timer -> use AnyEvent instead.
701 - replaced Coro::idle coroutine by (cleaner) idle handler.
702 - updated to newest libcoro.
703 - implement enhanced support for valgrind.
704 - implement is_ready and return value for ready.
705 - removed Coro::Cont, it was a misnomer (it's generators),
706 and it was somewhat annoying to get it right. Will come back
707 if somebody asks for it :)
708 - many ->wait methods and Coro::Event could return
709 spuriously without the event having happened.
710
7112.5 Tue Nov 7 12:22:33 CET 2006
4 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket 712 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
5 use AnyEvent, moved them to Coro/. 713 use AnyEvent, moved them to Coro/.
6 - added Coro::LWP which contains all the uglyness required to 714 - added Coro::LWP which contains all the uglyness required to
7 make LWP non-blocking. 715 make LWP non-blocking.
8 - should work with perl 5.9.x now (Andreas König made me do it). 716 - should work with perl 5.9.x now (Andreas König made me do it).

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