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Comparing Coro/Changes (file contents):
Revision 1.241 by root, Sat Sep 22 20:11:53 2007 UTC vs.
Revision 1.566 by root, Mon May 16 22:08:24 2011 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: better (earlier) error messages on broken transfer's 3TODO: should explore PerlIO::coroaio (perl leaks like hell).
4TODO: destroy gets only called on cancel: fix(?) 4TODO: channel->maxsize(newsize)?
5TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO. 5TODO: http://www.microsoft.com/msj/archive/s2ce.aspx
6TODO: maybe implement a default message channel, very much like Erlang
7 (which is cool in a lot of important aspects (failures!),
8 but very lacking in others).
9 6
103.7 7TODO: tutorial
8 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
9 destroyed and cleaned up automatically (e.g. async { schedule }).
10 - Coro::State->is_destroyed is now called is_zombie.
11 - implement a Coro->safe_cancel method that might fail, but
12 cancels in a "safer" way if it succeeds.
13 - get rid of two hash-accesses when initialising a new Coro - this
14 speeds up coro creation by almost a factor of two.
15 - croak when a coro that is being cancelled tries to block
16 (e.g. while executing a guard block), instead of crashing or
17 deadlocking.
18 - use a more robust and also faster method to identify Coro::State
19 objects - speeds up everything a bit.
20 - implement Coro->cancel in XS for a 20% speed improvement, and to
21 be able to implement mutual cancellation.
22 - speed up context switches by a percent or two by more efficiently
23 allocating context stack entries.
24 - implement Coro->join and Coro->on_destroy in XS for a speedup and
25 a reduction in memory use.
26 - cancelling a coro while it itself is cancelling another coro is
27 now supported and working, instead of triggering an assertion.
28 - be a bit more crash-resistant when calling (buggy) on_destroy
29 callbacks (best effort).
30 - move on_destroy into the slf_frame, to allow extension slf
31 functions to have destructors.
32 - get rid if coro refcounting - simply crash in other interpreter
33 threads by nulling the pointers on clone.
34 - simplify warn/die hook handling when loading Coro - the convoluted
35 logic seems to be no longer neccessary.
36
375.372 Wed Feb 23 06:14:30 CET 2011
38 - apparently mingw doesn't provide a working gettimeofday, try to
39 work around that by relying on Time::HiRes (indirectly brought to
40 my attention by Max Maischein).
41 - fix some portability issues when Time::HiRes was used.
42
435.371 Mon Feb 21 14:36:08 CET 2011
44 - backport to windows process emulation code again.
45
465.37 Sat Feb 19 07:49:44 CET 2011
47 - add a big "Coro thread life cycle" section to "man Coro".
48 - try a tentative workaround against the breakage that 5.13 has
49 introduced without depreciation period. sigh.
50 - no longer use Time::HiRes if gettimeofday is available, which
51 saves quite a lot of memory.
52
535.36 Sun Feb 13 05:33:41 CET 2011
54 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
55 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
56 method call.
57 - undocument Coro::Timer::sleep and obsolete whole module.
58 - optimise Coro::Timer::timeout memory and cpu usage.
59 - slightly updated Coro::Intro for recent changes.
60 - do not initialise PL_dirty anymore.
61
625.25 Thu Nov 11 01:08:39 CET 2010
63 - try a different approach on netbsd - netbsd 5 finally has marginally
64 working pthreads, but still broken ucontext/sigaltstack.
65 - openbsd 4.8 finally got their act together, Coro works out of the box
66 with asm, setjmp and pthreads (no change, just informational).
67
685.24 Sat Oct 23 11:27:12 CEST 2010
69 - port to the EV 4.0 API.
70 - work around bugs in mingw32, making strawberry perl work
71 out of the box.
72 - correctly modify Coro::AIO function prototypes
73 so that they reflect the "no optional parameters" rule.
74 - "ported" libcoro to C++.
75
765.23 Mon May 17 18:50:42 CEST 2010
77 - be more resistant to ordering changes when initialising
78 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
79 Waldorf).
80 - document that perl 5.12 deliberately removed support for cloning.
81
825.22 Wed Apr 14 03:55:35 CEST 2010
83 - correctly return udnef on errors in Coro::Handle::read/write
84 (testcase by Marc Mims).
85 - convert Coro::Util into a "perl compatibility wrapper" - the functions
86 are less useful now, but are drop-in replacements for existing
87 functions, listing better alternatives in the documentation. This also
88 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
89 with Coro::Util::inet_aton.
90 - do not override $Coro::idle unconditionally in Coro.pm, as other
91 modules could have provided their own idle coro already
92 (for exmaple, Coro::AnyEvent).
93 - fix Coro::Util::gethost* functions.
94 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
95
965.21 Wed Dec 16 07:19:51 CET 2009
97 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
98 together.
99 - add some examples on how to combine other event loops with Coro in
100 Coro::AnyEvent, and how to run it (and not to block). Seems to be
101 the most common source of confusion.
102 - try to catch people naively blocking in an event callback.
103 - work around the perl filehandle bug issue in conjunction with
104 older common::sense (as indirectly pointed out by ZSystem).
105 - clarify the "not from signal handlers" section.
106
1075.2 Sun Oct 4 14:54:24 CEST 2009
108 - Coro::Storable destroyed the prototypes of the functions it wrapped.
109 - export rouse_cb and rouse_wait by default now.
110 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
111 - new method $state->swap_sv.
112 - added section on "windows process emulation" to the manpage,
113 after a not-so-fruitful (nor-friendly) "discussion" with chip
114 salzenberg (discussion implies arguments, but his only arguments
115 were ad-hominems, one wonders why he started it in the first
116 place). I hope this explains it well enough for him to understand,
117 and maybe well enough for others to understand.
118 - use common::sense everywhere now.
119 - idle callbacks are no longer supported, use idle coros instead.
120 - print a thread listing when a deadlock is detected.
121
1225.17 Sat Aug 22 23:09:31 CEST 2009
123 - work around a bug in the perl debugger causing crashes
124 when running under the debugger by marking _pool_handler as nodebug.
125 - speed up Coro::async considerably.
126 - try some hacks to get netbsd to work "more often" - their broken
127 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
128 - convert Coro to AE 5.0 API.
129
1305.162 Tue Jul 28 04:04:03 CEST 2009
131 - perl 5.8.2 is now minimum requirement.
132 - skip t/19_handle.t on broken windows perls.
133
1345.161 Wed Jul 22 04:47:38 CEST 2009
135 - Coro::AnyEvent::poll could have a different prototype when EV was
136 used as backend (analyzed by Tatsuhiko Miyagawa).
137 - Coro::AnyEvent errornously initialised the event loop when loaded,
138 not on demand.
139 - try to workaround rare */t/01_unblock.t failures.
140
1415.16 Tue Jul 21 01:44:37 CEST 2009
142 - Coro::AnyEvent failed to hook into the event loop
143 when no threads had been readied between detecting
144 the event loop and actually running it.
145 - considerably speed up Coro::Select by taking avdantage
146 of AnyEvent > 4.8 and some other optimisations.
147 - implement paragraph readline mode in Coro::Handle
148 (based on patches by Zsbán Ambrus).
149 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
150 and analyzed by Yasuhiro MATSUMOTO).
151 - clarified libcoro license and copyright.
152 - someone stole my EXTRA_META!!!
153 - implement Coro::Select::patch_pp_sselect and it's brother,
154 for hardcode select overriding.
155
1565.151 Mon Jul 6 05:41:57 CEST 2009
157 - backport to windows process emulation code again (patch by
158 Yasuhiro MATSUMOTO).
159 - slightly update Coro::MakeMaker.
160
1615.15 Tue Jun 30 10:28:06 CEST 2009
162 - deprecate Coro::Socket, document how to get ipv6 support via
163 AnyEvent::Socket instead.
164 - implement signal->wait ($cb) interface, similar to semaphores.
165 - work around SvOK not supporting getmagic, so we have to getmagic
166 to test for undef :/ (reported by Matthias Waldorf).
167 - load Coro::AnyEvent in all modules using AnyEvent.
168 - work around perl corrupting our internal data structures,
169 reported by Tokuhiro Matsuno.
170 - enable per-coroutine real and cpu time gathering
171 (Coro::State::enable_times).
172
1735.14 Wed Jun 24 01:37:48 CEST 2009
174 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
175 as this seems to have been a difficult concept (poll, sleep, idle,
176 idle_upto).
177 - add Coro::AnyEvent::readable/writable functions.
178 - clarify Coro::EV/Event/AnyEvent manpages.
179 - free per-thread global scalars in the thread calling ->cancel, to
180 avoid crashes when $_, $@ etc., are magical but some of those
181 had already been freed.
182 - "unexperimentalise" the callback interface for Coro::Semaphore.
183 - speed up ready queue management/context switching by using a linked
184 list instead of an array (~5-10%).
185 - implement "watch" command in Coro::Debug shells.
186 - for fun, implement time-slicing as an example in the manpage.
187 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
188 Coro::Event, use the normal AnyEvent handling instead of dieing
189 (the same is true for Coro::Handle).
190 - properly document Coro::EV::timed_io_once.
191 - avoid unneccessary ->cancel calls in Coro::Handle.
192 - maybe make it work on mingw32 with win32 backend
193 (based on patch by Yasuhiro Matsumoto).
194
1955.132 Fri May 29 09:00:39 CEST 2009
196 - do not keep a reference to the argument itself in
197 Coro::Semaphore::guard, as it could change later.
198 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
199 should support a prepare callback.
200
2015.131 Mon Mar 16 23:20:37 CET 2009
202 - implement and document Coro->suspend, Coro->resume.
203 - fix Coro::Select implementation to not (often) close
204 the passed file descriptors (testcase provided by pippijn).
205
2065.13 Mon Dec 15 21:51:42 CET 2008
207 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
208 - don't set diehook to C<undef> but instead to NULL, to avoid
209 spurious warnings.
210 - fix a lot of bugs in Coro::SemaphoreSet.
211 - Coro::SemaphoreSet will less often create a semaphore needlessly.
212 - add Coro::SemaphoreSet::count and wait methods.
213 - take advantage of the new Guard module.
214 - deprecate Coro::guard.
215 - try to fix the dreaded 01_unblock tests once more. I hate it when
216 testsuites need more fixing than the code they are supposed to test.
217 - croak in more cases when a required callback isn't resolvable.
218 - fix some minor issues in Coro::State->call/eval.
219 - use current coroutine context instead of a temporary one
220 when temporarily switching to another coroutine.
221 - do not call C-level on_destroy handlers during global destruction,
222 to avoid needless segfaults.
223
2245.12 Sun Dec 7 13:30:38 CET 2008
225 - add default config for MirOS, which seems to be a bug-to-bug
226 compatible fork of openbsd ("world domination by releasing
227 openbsd cvs before the openbsd folks do it" or so :).
228 - free_padlist did destroy the names pad, not good, but didn't
229 seem to bother perl - this could fix issues such as eval ""
230 inside a function called from multiple coroutines.
231 - use a different method to detect destruction time.
232 - be more careful when freeing padlists just before global
233 destruction.
234 - fixed and expanded the call/cc example.
235 - renamed _terminate to _coro_run.
236 - new method Coro::Channel->shutdown.
237 - try pthreads on openbsd <4.4 (broken sigaltstack, will
238 pthreads fare better?).
239 - be less picky about destroying "a" running coroutine.
240
2415.11 Tue Nov 25 21:49:05 CET 2008
242 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
243 working code with failed assertions, introducing more bugs than
244 it fixes, requiring elaborate workarounds :(
245
2465.1 Mon Nov 24 08:54:59 CET 2008
247 - wrote a small introductory tutorial - Coro::Intro.
248 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
249 - Coro::Select did errornously dup the file descriptors
250 and didn't work with all AnyEvent backends.
251 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
252 LWP data transfers.
253 - disassociate c contexts from coro objects - this is agruably more
254 correct, but mostly allows sharing of cctxs between coro and state
255 objects, for added memory savings and speed increases.
256 - bumped $Coro::POOL_RSS up to 32kb by default.
257 - no longer set the optype to OP_CUSTOM, as B::* understandably
258 doesn't like this very much (and we *are* a type of entersub).
259 - implement state cloning, just to prove that call/cc can be done.
260 - automatically load Coro::AnyEvent in Coro::Handle.
261 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
262 do not have this method (and don't need it either).
263 - speed up generic anyevent methods in Coro::Handle by using rouse
264 callbacks.
265 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
266 others. It also makes the debugger happier, as you can trace
267 through the idle threads now.
268 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
269 - eg/event was pretty broken.
270 - better 5.8.6 compatibility.
271
2725.0 Thu Nov 20 10:35:05 CET 2008
273 - NEW ARCHITECTURE: use the latest 4.x version if you experience
274 stability issues.
275 - bump API version to 7 - all dependents must be recompiled.
276 - removed timed_* functions - they were not being used anyways
277 and should be replaced by a more generic mechanism -
278 and were annoying to support anyways :)
279 - removed SemaphoreSet's waiter method - use sem method instead.
280 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
281 - async_pool did free a scalar value twice
282 ("Attempt to unreference...").
283 - fix a longstanding bug where calling terminate on a coro that
284 was waiting for a semaphore that was just becoming available
285 would cause a deadlock (semaphore would get into a state where
286 it was available but waiters were still blocked).
287 - calling throw on a coroutine that is waiting for a semaphore will
288 no longer make it acquire the semaphore (and thus leak a count).
289 - perl's process emulation is now not even theoretically supported
290 anymore.
291 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
292 conversion of callback-style to blocking-style.
293 - new methods $coro->schedule_to and ->cede_to, to specifically
294 schedule or cede to a specific coroutine.
295 - new function Coro::Semaphore::wait.
296 - use named constants in Coro::Channel (Richard Hundt).
297 - directly patch the entersub opcode calling SLF functions (cede,
298 transfer and so on). this does speed up context switching, but
299 more importanly, it frees us from the hardcoded behaviour of
300 entersub, so we might actually be able to return something from
301 those functions and atcually create new ones.
302 - take advantage of __builtin_frame_address on gcc.
303 - expose THX in coroapi (not sure whether this was a wise decision,
304 as "threaded" perls are running at half speed anyways).
305 - implement execute_slf (schedule-like-function) interface that makes
306 it possible to implement schedule-like-functions in XS.
307 - use new SLF interface to massively speed up Coro::EV by roughly a
308 factor of two.
309 - used new SLF interface to massively speed up Coro::Semaphore by a
310 factor of three.
311 - used new SLF interface to speed up Coro::AIO by roughly a factor of
312 four and reduce its memory usage considerably.
313 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
314 for a nice speedup and vastly more correct behaviour. Also implement
315 a new method "sem" to get at the underlying semaphore object.
316 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
317 (in comparison) 20-40% speedup.
318 - used new SLF interface to reimplement Coro::Signal gaining
319 some unknown (because I was too lazy), but certain, speedup, and also
320 making signals reliable for the first time.
321 - used new SLF interface and other optimisations to speed up async_pool
322 by a factor of two. It also doesn't rely on perl's exception mechanism
323 to exit anymore. The overhead for terminating an async_pool, coro over
324 a normal async is now very small.
325 - sped up coroutine creation/destruction by 40%.
326 - forgot to include Coro/libcoro/README in the dist for all these years.
327 - work around a freebsd pthreads bug (manual testcancel is required as
328 pthread_cond_wait isn't a cancellation point on freebsd).
329 - use new rouse functions to speed up and simplify Coro::BDB.
330 - make "prefer perl native functions" work with threaded perls.
331 - condense Coro::Debug ps output, hint at v and w flags.
332 - (libcoro) lots of minor cleanups and portability improvements.
333
3344.914 Wed Nov 19 12:54:18 CET 2008
335 - fix a disastrous bug in the readline optimisation
336 introduced in 4.801.
337
3384.913 Sat Nov 15 07:58:28 CET 2008
339 - async_pool did free a scalar value twice
340 ("Attempt to unreference...").
341
3424.912 Thu Nov 13 18:31:23 CET 2008
343 - minor cleanups.
344 - use much larger stacks on linux and perl < 5.8.8.
345 - Coro::Debug::new_unix_server did not unlink the socket
346 when destroyed.
347
3484.911 Tue Nov 11 04:26:17 CET 2008
349 - "port" to threaded perls.
350
3514.91 Mon Nov 10 05:36:38 CET 2008
352 - the ->throw exception object no longer leaks.
353 - creating a new cctx leaked a scopestack entry (memleak).
354 - new coroutines didn't get created with a zero flags field
355 (unknown impact).
356 - calling ->throw on a not-yet-started coroutine should now work
357 instead of being ignored.
358 - ->throw is now supported on Coro::State objects.
359 - clean up cctx creation code a bit.
360 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
361
3624.9 Sat Nov 8 17:45:27 CET 2008
363 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
364 - (libcoro) no longer leak threads in the experimental pthread backend,
365 also speed it up considerably.
366 - (libcoro) do not rely on makecontext passing void *'s unscathed.
367 - fix compiletime dependencies on libcoro in the Makefile.
368 - cctx_count wasn't always updated properly.
369 - Coro::State::cctx_stacksize wasn't applied correctly.
370 - new function Coro::State::cctx_max_idle.
371 - the default max number of idle C contexts is now 4.
372 - (libcoro) try harder to get _setjmp/_longjmp.
373 - (libcoro) cleanup and extend the libcoro API to officially
374 allow the creation of empty source contexts.
375 - very experimental workaround for the totally broken netbsd platform.
376 - tried to hack around openbsd bugs.
377
3784.804 Wed Nov 5 16:36:00 CET 2008
379 - Coro::Debug::new_unix_server would not create a non-blocking listening
380 socket, sometimes causing freezes.
381 - (libcoro) fix misaligned stack points for setjmp and assembly
382 methods, which can cause crashes on x86/x86_64 with a sufficiently
383 aggressive compiler.
384 - new function: Coro::Debug::new_tcp_server.
385 - move ->throw into the Coro class because it only works on coro objects.
386
3874.803 Mon Nov 3 17:16:12 CET 2008
388 - (libcoro) use a global asm statement to become independent of gcc
389 otpimisations for CORO_ASM (thanks to pippijn for the idea).
390 - try to workaround yet another broken bsd, this time dragonfly.
391
3924.802 Thu Oct 30 10:56:12 CET 2008
393 - support -fno-omit-frame-pointer on x86 with the assembly method.
394 - tune 01_unblock.t tests a bit.
395
3964.801 Wed Oct 22 18:33:37 CEST 2008
397 - improve readline speed for very long "lines".
398 - backport to 5.8.8.
399
4004.8 Thu Oct 2 13:34:40 CEST 2008
401 - new function Coro::AIO::aio_wait.
402 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
403 - greatly speed up and reduce memory usage of Coro::AIO requests.
404 - implement some other µ-optimisations.
405
4064.749 Mon Sep 29 14:40:12 CEST 2008
407 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
408
4094.748 Sat Sep 27 14:03:19 CEST 2008
410 - implement, but do not document, PerlIO::cede(granularity).
411 - Coro::Storable forgot to wrap Storable::pstore.
412 - work around the multitude of leaks and memory corruption
413 bugs in PerlIO::via by using our own C-level perliol. As a side
414 effect, Coro::Storable is now much, much, much faster.
415
4164.747 Tue Sep 23 01:59:41 CEST 2008
417 - fix a per-cv memleak (one empty array was leaked per
418 code reference).
419 - avoid a crash in coro->call|rss when the coroutine was already
420 destroyed (most noticably when using Coro::Debug::ps :)
421 - also protect *Storable::FILE.
422 - push up default storable granularity to 20ms.
423
4244.746 Sun Sep 21 03:22:20 CEST 2008
425 - be more insistent on locking Storable against reentrancy
426 in Coro::Storable.
427 - move swap_def?v and throw to Coro::State, as documented.
428
4294.745 Thu Jul 24 00:14:38 CEST 2008
430 - remove debugging code related to MgPV_nolen_const, also try to
431 make it compile with perl 5.8.6 (yes, apple apparently loves
432 outdated software). Reported by John S.
433
4344.744 Tue Jul 8 22:06:35 CEST 2008
435 - correctly provide default DIE/WARN handlers as documented.
436 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
437 implementations inside perl work fine for us.
438
4394.743 Mon Jun 16 00:21:57 CEST 2008
440 - when using Coro::EV without running EV::loop it could
441 result in busy-waiting for events, this has been fixed.
442 - reduce codesize and improve performance by using EV_DEFAULT_UC.
443
4444.742 Sat May 31 14:10:21 CEST 2008
445 - implement a workaround for (some) perl <5.8.8 versions.
446 - require EV 3.3+.
447
4484.741 Fri May 30 23:33:09 CEST 2008
449 - tell netbsd how utterly broken their imitation of an OS is
450 and refuse to build by default if pthreads are in use.
451 - switch to "s" method on all bsd's by default, as their ucontext
452 stuff seems just too broken.
453 - fix a bug in Coro::Select.
454
4554.74 Thu May 29 20:05:31 CEST 2008
456 - do not test Coro::LWP for lack of dependencies.
457 - do not test Coro::Select for lack of working perls.
458
4594.73 Thu May 29 2008
460 - fix a bug in Coro::EV which would cause it to block despite
461 there being runnable coroutines.
462 - sprinkle "no warnings" freely over everything, also suppress
463 warnings for some other modules.
464 - fix typo in WSAEWOULDBLOCK.
465
4664.72 Sun May 25 05:14:36 CEST 2008
467 - tweak META.yaml a bit, unfortunately, there is no documented way
468 to have optional dependencies with CPAN. doh :(
469 - avoid running some tests on windows because they would fail due to
470 perl bug (broken fork, broken pipes...).
471 - work around perl on windows bugs where perl returns undocumented
472 error codes for sysread, syswrite etc. by taking advantage
473 of AnyEvent's workaround for that problem.
474 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
475 a common perl implementation bug on windows.
476 - use unix domain sockets in testsuite to work around
477 common perl implementation bugs on widows (they are emulated by
478 tcp sockets on windows. ugh.)
479
4804.71 Sat May 24 20:01:27 CEST 2008
481 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
482 - take advantage of async name resolution of AnyEvent::Util.
483 - work around brutal inet_aton override in Coro::LWP.
484 - take advantage of the readyhook in Coro::EV, for smoother
485 scheduling.
486
4874.7 Sun May 11 00:32:19 CEST 2008
488 - completely reworked the Coro manpage.
489 - added Coro::AnyEvent, generic event loop integration.
490 - implement cancel, ready and kill commands in Coro::Debug.
491 - document find_coro in Coro::Debug.
492 - incompatible change: rename has_stack to has_cctx.
493 - Coro::AIO and Coro::BDB no longer force event model detection,
494 use AnyEvent::AIO and AnyEvent::BDB.
495
4964.6 Sat Apr 26 10:05:14 CEST 2008
497 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
498 by the Coro module. It was a mistake to have it in the first place.
499 - (experimental) support for activestate perl 5.10 (method "w").
500 - (experimental) support for strawberry perl (method "a").
501 - coro_sigelem_set did not return a value although it had to,
502 actual impact unknown.
503
5044.51 Mon Apr 14 13:28:27 CEST 2008
505 - make it compile again on 5.8.
506
5074.50 Thu Apr 10 09:43:17 CEST 2008
508 - I did it twice! (see 4.49).
509
5104.49 Sun Apr 6 21:23:31 CEST 2008
511 - grr, instead of compiling the recent changes on 5.10 only they
512 were compiled on 5.8 only.
513
5144.48 Sun Apr 6 20:36:46 CEST 2008
515 - allow coroutine switches during eval's under 5.10.x, as it seems
516 the parser is a per-interpreter option now, so this is safe
517 (this might fix the odd crashing bug).
518 - drop support for 5.9.x versions: they are dead, jim.
519
5204.47 Sun Apr 6 00:37:52 CEST 2008
521 - force cctx allocation on API calls: we know we need to force one
522 and gcc actually manages to confuse our heuristic nowadays,
523 leading to crashes and worse.
524 - document force_cctx.
525
5264.46 Fri Apr 4 22:05:43 CEST 2008
527 - upgrade libcoro, resulting in pthread-backend (which was only created
528 to fulfill the rules of the programming languages shootout).
529
5304.45 Thu Mar 13 11:55:36 CET 2008
531 - fix a file leaking bug in eg/mhyttpd that would allow
532 downloading of any file (reported by oesi).
533 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
534 (also add testcase).
535 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
536 apparently having loads of fun with that).
537 - implement $state->swap_defsv, ->swap_defav and document ->throw.
538
5394.4 Wed Feb 13 16:44:29 CET 2008
540 - only assume .cfi pseudo isns exist on GNU/Linux.
541 - add get_timed method to Coro::Channels.
542 - fixed Coro::Debug manpage.
543 - perl 5.11 compatbility improvement based on patch by
544 Andreas König.
545
5464.37 Sun Jan 20 11:25:23 CET 2008
547 - soften the check for an active parser for perl 5.10 (avoiding
548 "Coro::State::transfer called while parsing" in many cases).
549
5504.36 Sun Jan 13 10:53:56 CET 2008
551 - reset diehook when terminating from an async_pool as to not
552 trigger any __DIE__ handlers.
553
5544.35 Sun Jan 13 04:14:13 CET 2008
555 - "bt" debug command now displays any exceptions
556 from longmess and also skips the innermost
557 stackframes, giving more useufl output.
558 - allow backtraces in coroutines blocked in Coro::EV,
559 at a <1% speed hit.
560 - handle localising of $SIG{__WARN__} and __DIE__
561 properly (with a proper amount of dirty hacking).
562
5634.34 Sat Dec 22 17:49:53 CET 2007
564 - upgrade to EV version 2.0 API.
565
5664.33 Mon Dec 17 08:36:12 CET 2007
567 - make Coro::AIO etc. loadable in the absence of EV.
568
5694.32 Mon Dec 17 07:46:02 CET 2007
570 - majorly improved Coro::Handle's performance with Coro::EV.
571 - implemented the until now mythical Coro::BDB module.
572 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
573
5744.31 Wed Dec 5 12:32:39 CET 2007
575 - remove warn statement form Coro::Util.
576
5774.3 Tue Dec 4 20:33:14 CET 2007
578 - calls to the idle function could cause stack corruption
579 when the stack changed.
580 - do no longer rely on the presence of EV::DNS if EV is used
581 (because it is gone), but instead take avdantage of EV::ADNS
582 if available.
583 - add ($) prototypes to all functions in Coro::Storable.
584 - use a conventional (safer) idle callback in Coro::EV.
585 - do accept quickly in Coro::Debug to avoid endless loops.
586
5874.22 Fri Nov 30 16:04:04 CET 2007
588 - really use optimised versions for Event and EV in Coro::Util
589 and Coro::Handle.
590
5914.21 Sun Nov 25 10:48:59 CET 2007
592 - fix a spurious memory read.
593 - Coro::EV no longer keeps the eventloop "alive".
594
5954.2 Fri Nov 9 20:47:05 CET 2007
596 - enable/disable tracing from a new coroutine, not a pooled one.
597 - fix a memleak in Coro::Event.
598 - removed killall call from fork_eval.
599 - made sure store_fd is already loaded so that fork_eval
600 does not have to parse autoload in each subprocess.
601 - only use assembly method if -O switch is in $Config{optimize}.
602 - add (optional) Coro::EV module, so far the best event loop module
603 directly supported by Coro.
604 - if the event model is EV, use EV::DNS to resolve
605 stuff in Coro::Util.
606 - don't get confused by multiple event notifications in Coro::Handle.
607 - initial support for EV (libevent interface).
608 - require Event and EV using configure_requires, to force their existance.
609
6104.13 Wed Oct 24 07:26:45 CEST 2007
611 - add Coro::Storable::blocking_thaw.
612 - use a vastly more complicated technique to localise
613 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
614 - use a coroutine for the idle callback Coro::Event,
615 instead of running Event in the current coroutine context.
616 This also catches recursive invocations.
617 - actually report fork errors in gethostbyname and inet_aton.
618
6194.11 Thu Oct 11 02:40:24 CEST 2007
620 - port to threaded perls.
621
6224.1 Thu Oct 11 02:38:16 CEST 2007
623 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
624 be local to each coro (see Coro::State).
625 - incompatible change: for very deep reasons, cede and cede_notself
626 cannot return anything, so nothing will be returned.
627 - possibly bring back 5.10 compatibility (untested).
628 - work around stupid (and wrong) warning on 5.10 :(.
629 - overlay the saved state over the context stack. This saves
630 a few hundred bytes per coroutine on average and also
631 speeds up context switching a bit.
632 - further tune default stack sizes.
633 - (more) correctly calculate stack usage in coro_rss.
634 - Coro::Storable::blocking_* did not properly lock
635 resulting in races between coroutines.
636 - added Coro::Storable::guard.
637 - stopping to trace a coroutine could destroy the cctx of
638 an unrelated coroutine.
639 - explain the relationship between Perl and C coroutines in
640 more detail in Coro::State.
641 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
642 causing a fork per resolve. This also affected Coro::Socket.
643 - switch to a separate stack in $coro->call/eval to avoid
644 invalidating pointers.
645
6464.03 Sat Oct 6 21:24:00 CEST 2007
647 - added Coro::throw method.
648 - minor code cleanups.
649
6504.02 Sat Oct 6 02:36:47 CEST 2007
651 - fix a very minor per-coroutine memleak (a single codereference).
652 - fixed a bug where the currently in-use c context would be freed
653 prematurely (can happen only when programs change the stacksize
654 or use tracing).
655 - tracing can no longer keep a coro alive after it terminated.
656 - do static branch prediction in the common path for gcc. gives
657 about 2-5% speed improvement here.
658
6594.01 Fri Oct 5 22:10:49 CEST 2007
660 - instead of recreating *a* standard output handle we simply
661 use STDOUT, which is faster and hopefully more robust.
662
6634.0 Fri Oct 5 12:56:00 CEST 2007
11 - incompatibly changed Coro::Storable::freeze. 664 - incompatibly changed Coro::Storable::freeze.
12 - added Coro::Debug, interactive coroutine debugging. 665 - major new feature: added Coro::Debug, for interactive coroutine
666 debugging, tracing and much more.
667 - major bug fix: unbelievable, but true: $_, $/ and many other
668 "saved" variables actually weren't being saved. This has been fixed,
669 of course, while increasing performance while losing all the save
670 flags.
671 - save flags are gone, and all the api functions dealing with them.
13 - added Coro::Semaphore::adjust. 672 - added Coro::Semaphore::adjust.
14 - added Coro::Util::fork_eval. 673 - added Coro::Util::fork_eval.
15 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}. 674 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
675 - added Coro::killall.
16 - reduce initial stack sizes to allow for "micro-coroutines". 676 - reduce initial stack sizes to allow for "micro-coroutines".
17 - better async_pool resource management, moved parts of async_pool 677 - better async_pool resource management, moved parts of async_pool
18 handling to XS (major speed improvement). 678 handling to XS (major speed improvement).
19 - work around bugs in Event causing events to be develivered 679 - actually croak before modifying important data structures.
20 for freed watchers (with invalid pointers in them...), using 680 - refuse to transfer while compiling.
21 some ugly perl hacks :/ 681 - possibly support eval EXPR better now.
682 - enable assembly per default on linux+bsd x86+amd64.
683 - all internal members were renamed _something for easier subclassing.
22 - many minor tweaks. 684 - many minor tweaks.
23 685
243.63 Wed May 16 14:10:06 CEST 2007 6863.63 Wed May 16 14:10:06 CEST 2007
25 - implement handcoded assembly for x86/amd64 SVR ABI. 687 - implement handcoded assembly for x86/amd64 SVR ABI.
26 688

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