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Comparing Coro/Changes (file contents):
Revision 1.140 by root, Sun Nov 5 02:20:16 2006 UTC vs.
Revision 1.559 by root, Fri May 6 21:15:17 2011 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: possibly convert some of the Event modules into AnyEvent users. 3TODO: should explore PerlIO::coroaio (perl leaks like hell).
4TODO: channel->maxsize(newsize)?
5TODO: http://www.microsoft.com/msj/archive/s2ce.aspx
4 6
7 - croak when a coro being cancelled tries to block (e.g. while
8 executing a guard block).
9 - implement a Coro::State->safe_cancel method that might fail, but
10 cancels in a "safer" way.
11 - implement Coro->cancel in XS for a 20% speed improvement, and to
12 be able to implement mutual cancellation.
13 - cancelling a coro while it itself is cancelling another coro is
14 now supported and working, instead of triggering an assertion.
15 - be a bit more crash-resistant when calling (buggy) on_destroy
16 callbacks (best effort).
17 - move on_destroy into the slf_frame, to allow extension slf
18 functions to have destructors.
19
205.372 Wed Feb 23 06:14:30 CET 2011
21 - apparently mingw doesn't provide a working gettimeofday, try to
22 work around that by relying on Time::HiRes (indirectly brought to
23 my attention by Max Maischein).
24 - fix some portability issues when Time::HiRes was used.
25
265.371 Mon Feb 21 14:36:08 CET 2011
27 - backport to windows process emulation code again.
28
295.37 Sat Feb 19 07:49:44 CET 2011
30 - add a big "Coro thread life cycle" section to "man Coro".
31 - try a tentative workaround against the breakage that 5.13 has
32 introduced without depreciation period. sigh.
33 - no longer use Time::HiRes if gettimeofday is available, which
34 saves quite a lot of memory.
35
365.36 Sun Feb 13 05:33:41 CET 2011
37 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
38 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
39 method call.
40 - undocument Coro::Timer::sleep and obsolete whole module.
41 - optimise Coro::Timer::timeout memory and cpu usage.
42 - slightly updated Coro::Intro for recent changes.
43 - do not initialise PL_dirty anymore.
44
455.25 Thu Nov 11 01:08:39 CET 2010
46 - try a different approach on netbsd - netbsd 5 finally has marginally
47 working pthreads, but still broken ucontext/sigaltstack.
48 - openbsd 4.8 finally got their act together, Coro works out of the box
49 with asm, setjmp and pthreads (no change, just informational).
50
515.24 Sat Oct 23 11:27:12 CEST 2010
52 - port to the EV 4.0 API.
53 - work around bugs in mingw32, making strawberry perl work
54 out of the box.
55 - correctly modify Coro::AIO function prototypes
56 so that they reflect the "no optional parameters" rule.
57 - "ported" libcoro to C++.
58
595.23 Mon May 17 18:50:42 CEST 2010
60 - be more resistant to ordering changes when initialising
61 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
62 Waldorf).
63 - document that perl 5.12 deliberately removed support for cloning.
64
655.22 Wed Apr 14 03:55:35 CEST 2010
66 - correctly return udnef on errors in Coro::Handle::read/write
67 (testcase by Marc Mims).
68 - convert Coro::Util into a "perl compatibility wrapper" - the functions
69 are less useful now, but are drop-in replacements for existing
70 functions, listing better alternatives in the documentation. This also
71 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
72 with Coro::Util::inet_aton.
73 - do not override $Coro::idle unconditionally in Coro.pm, as other
74 modules could have provided their own idle coro already
75 (for exmaple, Coro::AnyEvent).
76 - fix Coro::Util::gethost* functions.
77 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
78
795.21 Wed Dec 16 07:19:51 CET 2009
80 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
81 together.
82 - add some examples on how to combine other event loops with Coro in
83 Coro::AnyEvent, and how to run it (and not to block). Seems to be
84 the most common source of confusion.
85 - try to catch people naively blocking in an event callback.
86 - work around the perl filehandle bug issue in conjunction with
87 older common::sense (as indirectly pointed out by ZSystem).
88 - clarify the "not from signal handlers" section.
89
905.2 Sun Oct 4 14:54:24 CEST 2009
91 - Coro::Storable destroyed the prototypes of the functions it wrapped.
92 - export rouse_cb and rouse_wait by default now.
93 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
94 - new method $state->swap_sv.
95 - added section on "windows process emulation" to the manpage,
96 after a not-so-fruitful (nor-friendly) "discussion" with chip
97 salzenberg (discussion implies arguments, but his only arguments
98 were ad-hominems, one wonders why he started it in the first
99 place). I hope this explains it well enough for him to understand,
100 and maybe well enough for others to understand.
101 - use common::sense everywhere now.
102 - idle callbacks are no longer supported, use idle coros instead.
103 - print a thread listing when a deadlock is detected.
104
1055.17 Sat Aug 22 23:09:31 CEST 2009
106 - work around a bug in the perl debugger causing crashes
107 when running under the debugger by marking _pool_handler as nodebug.
108 - speed up Coro::async considerably.
109 - try some hacks to get netbsd to work "more often" - their broken
110 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
111 - convert Coro to AE 5.0 API.
112
1135.162 Tue Jul 28 04:04:03 CEST 2009
114 - perl 5.8.2 is now minimum requirement.
115 - skip t/19_handle.t on broken windows perls.
116
1175.161 Wed Jul 22 04:47:38 CEST 2009
118 - Coro::AnyEvent::poll could have a different prototype when EV was
119 used as backend (analyzed by Tatsuhiko Miyagawa).
120 - Coro::AnyEvent errornously initialised the event loop when loaded,
121 not on demand.
122 - try to workaround rare */t/01_unblock.t failures.
123
1245.16 Tue Jul 21 01:44:37 CEST 2009
125 - Coro::AnyEvent failed to hook into the event loop
126 when no threads had been readied between detecting
127 the event loop and actually running it.
128 - considerably speed up Coro::Select by taking avdantage
129 of AnyEvent > 4.8 and some other optimisations.
130 - implement paragraph readline mode in Coro::Handle
131 (based on patches by Zsbán Ambrus).
132 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
133 and analyzed by Yasuhiro MATSUMOTO).
134 - clarified libcoro license and copyright.
135 - someone stole my EXTRA_META!!!
136 - implement Coro::Select::patch_pp_sselect and it's brother,
137 for hardcode select overriding.
138
1395.151 Mon Jul 6 05:41:57 CEST 2009
140 - backport to windows process emulation code again (patch by
141 Yasuhiro MATSUMOTO).
142 - slightly update Coro::MakeMaker.
143
1445.15 Tue Jun 30 10:28:06 CEST 2009
145 - deprecate Coro::Socket, document how to get ipv6 support via
146 AnyEvent::Socket instead.
147 - implement signal->wait ($cb) interface, similar to semaphores.
148 - work around SvOK not supporting getmagic, so we have to getmagic
149 to test for undef :/ (reported by Matthias Waldorf).
150 - load Coro::AnyEvent in all modules using AnyEvent.
151 - work around perl corrupting our internal data structures,
152 reported by Tokuhiro Matsuno.
153 - enable per-coroutine real and cpu time gathering
154 (Coro::State::enable_times).
155
1565.14 Wed Jun 24 01:37:48 CEST 2009
157 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
158 as this seems to have been a difficult concept (poll, sleep, idle,
159 idle_upto).
160 - add Coro::AnyEvent::readable/writable functions.
161 - clarify Coro::EV/Event/AnyEvent manpages.
162 - free per-thread global scalars in the thread calling ->cancel, to
163 avoid crashes when $_, $@ etc., are magical but some of those
164 had already been freed.
165 - "unexperimentalise" the callback interface for Coro::Semaphore.
166 - speed up ready queue management/context switching by using a linked
167 list instead of an array (~5-10%).
168 - implement "watch" command in Coro::Debug shells.
169 - for fun, implement time-slicing as an example in the manpage.
170 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
171 Coro::Event, use the normal AnyEvent handling instead of dieing
172 (the same is true for Coro::Handle).
173 - properly document Coro::EV::timed_io_once.
174 - avoid unneccessary ->cancel calls in Coro::Handle.
175 - maybe make it work on mingw32 with win32 backend
176 (based on patch by Yasuhiro Matsumoto).
177
1785.132 Fri May 29 09:00:39 CEST 2009
179 - do not keep a reference to the argument itself in
180 Coro::Semaphore::guard, as it could change later.
181 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
182 should support a prepare callback.
183
1845.131 Mon Mar 16 23:20:37 CET 2009
185 - implement and document Coro->suspend, Coro->resume.
186 - fix Coro::Select implementation to not (often) close
187 the passed file descriptors (testcase provided by pippijn).
188
1895.13 Mon Dec 15 21:51:42 CET 2008
190 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
191 - don't set diehook to C<undef> but instead to NULL, to avoid
192 spurious warnings.
193 - fix a lot of bugs in Coro::SemaphoreSet.
194 - Coro::SemaphoreSet will less often create a semaphore needlessly.
195 - add Coro::SemaphoreSet::count and wait methods.
196 - take advantage of the new Guard module.
197 - deprecate Coro::guard.
198 - try to fix the dreaded 01_unblock tests once more. I hate it when
199 testsuites need more fixing than the code they are supposed to test.
200 - croak in more cases when a required callback isn't resolvable.
201 - fix some minor issues in Coro::State->call/eval.
202 - use current coroutine context instead of a temporary one
203 when temporarily switching to another coroutine.
204 - do not call C-level on_destroy handlers during global destruction,
205 to avoid needless segfaults.
206
2075.12 Sun Dec 7 13:30:38 CET 2008
208 - add default config for MirOS, which seems to be a bug-to-bug
209 compatible fork of openbsd ("world domination by releasing
210 openbsd cvs before the openbsd folks do it" or so :).
211 - free_padlist did destroy the names pad, not good, but didn't
212 seem to bother perl - this could fix issues such as eval ""
213 inside a function called from multiple coroutines.
214 - use a different method to detect destruction time.
215 - be more careful when freeing padlists just before global
216 destruction.
217 - fixed and expanded the call/cc example.
218 - renamed _terminate to _coro_run.
219 - new method Coro::Channel->shutdown.
220 - try pthreads on openbsd <4.4 (broken sigaltstack, will
221 pthreads fare better?).
222 - be less picky about destroying "a" running coroutine.
223
2245.11 Tue Nov 25 21:49:05 CET 2008
225 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
226 working code with failed assertions, introducing more bugs than
227 it fixes, requiring elaborate workarounds :(
228
2295.1 Mon Nov 24 08:54:59 CET 2008
230 - wrote a small introductory tutorial - Coro::Intro.
231 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
232 - Coro::Select did errornously dup the file descriptors
233 and didn't work with all AnyEvent backends.
234 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
235 LWP data transfers.
236 - disassociate c contexts from coro objects - this is agruably more
237 correct, but mostly allows sharing of cctxs between coro and state
238 objects, for added memory savings and speed increases.
239 - bumped $Coro::POOL_RSS up to 32kb by default.
240 - no longer set the optype to OP_CUSTOM, as B::* understandably
241 doesn't like this very much (and we *are* a type of entersub).
242 - implement state cloning, just to prove that call/cc can be done.
243 - automatically load Coro::AnyEvent in Coro::Handle.
244 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
245 do not have this method (and don't need it either).
246 - speed up generic anyevent methods in Coro::Handle by using rouse
247 callbacks.
248 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
249 others. It also makes the debugger happier, as you can trace
250 through the idle threads now.
251 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
252 - eg/event was pretty broken.
253 - better 5.8.6 compatibility.
254
2555.0 Thu Nov 20 10:35:05 CET 2008
256 - NEW ARCHITECTURE: use the latest 4.x version if you experience
257 stability issues.
258 - bump API version to 7 - all dependents must be recompiled.
259 - removed timed_* functions - they were not being used anyways
260 and should be replaced by a more generic mechanism -
261 and were annoying to support anyways :)
262 - removed SemaphoreSet's waiter method - use sem method instead.
263 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
264 - async_pool did free a scalar value twice
265 ("Attempt to unreference...").
266 - fix a longstanding bug where calling terminate on a coro that
267 was waiting for a semaphore that was just becoming available
268 would cause a deadlock (semaphore would get into a state where
269 it was available but waiters were still blocked).
270 - calling throw on a coroutine that is waiting for a semaphore will
271 no longer make it acquire the semaphore (and thus leak a count).
272 - perl's process emulation is now not even theoretically supported
273 anymore.
274 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
275 conversion of callback-style to blocking-style.
276 - new methods $coro->schedule_to and ->cede_to, to specifically
277 schedule or cede to a specific coroutine.
278 - new function Coro::Semaphore::wait.
279 - use named constants in Coro::Channel (Richard Hundt).
280 - directly patch the entersub opcode calling SLF functions (cede,
281 transfer and so on). this does speed up context switching, but
282 more importanly, it frees us from the hardcoded behaviour of
283 entersub, so we might actually be able to return something from
284 those functions and atcually create new ones.
285 - take advantage of __builtin_frame_address on gcc.
286 - expose THX in coroapi (not sure whether this was a wise decision,
287 as "threaded" perls are running at half speed anyways).
288 - implement execute_slf (schedule-like-function) interface that makes
289 it possible to implement schedule-like-functions in XS.
290 - use new SLF interface to massively speed up Coro::EV by roughly a
291 factor of two.
292 - used new SLF interface to massively speed up Coro::Semaphore by a
293 factor of three.
294 - used new SLF interface to speed up Coro::AIO by roughly a factor of
295 four and reduce its memory usage considerably.
296 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
297 for a nice speedup and vastly more correct behaviour. Also implement
298 a new method "sem" to get at the underlying semaphore object.
299 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
300 (in comparison) 20-40% speedup.
301 - used new SLF interface to reimplement Coro::Signal gaining
302 some unknown (because I was too lazy), but certain, speedup, and also
303 making signals reliable for the first time.
304 - used new SLF interface and other optimisations to speed up async_pool
305 by a factor of two. It also doesn't rely on perl's exception mechanism
306 to exit anymore. The overhead for terminating an async_pool, coro over
307 a normal async is now very small.
308 - sped up coroutine creation/destruction by 40%.
309 - forgot to include Coro/libcoro/README in the dist for all these years.
310 - work around a freebsd pthreads bug (manual testcancel is required as
311 pthread_cond_wait isn't a cancellation point on freebsd).
312 - use new rouse functions to speed up and simplify Coro::BDB.
313 - make "prefer perl native functions" work with threaded perls.
314 - condense Coro::Debug ps output, hint at v and w flags.
315 - (libcoro) lots of minor cleanups and portability improvements.
316
3174.914 Wed Nov 19 12:54:18 CET 2008
318 - fix a disastrous bug in the readline optimisation
319 introduced in 4.801.
320
3214.913 Sat Nov 15 07:58:28 CET 2008
322 - async_pool did free a scalar value twice
323 ("Attempt to unreference...").
324
3254.912 Thu Nov 13 18:31:23 CET 2008
326 - minor cleanups.
327 - use much larger stacks on linux and perl < 5.8.8.
328 - Coro::Debug::new_unix_server did not unlink the socket
329 when destroyed.
330
3314.911 Tue Nov 11 04:26:17 CET 2008
332 - "port" to threaded perls.
333
3344.91 Mon Nov 10 05:36:38 CET 2008
335 - the ->throw exception object no longer leaks.
336 - creating a new cctx leaked a scopestack entry (memleak).
337 - new coroutines didn't get created with a zero flags field
338 (unknown impact).
339 - calling ->throw on a not-yet-started coroutine should now work
340 instead of being ignored.
341 - ->throw is now supported on Coro::State objects.
342 - clean up cctx creation code a bit.
343 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
344
3454.9 Sat Nov 8 17:45:27 CET 2008
346 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
347 - (libcoro) no longer leak threads in the experimental pthread backend,
348 also speed it up considerably.
349 - (libcoro) do not rely on makecontext passing void *'s unscathed.
350 - fix compiletime dependencies on libcoro in the Makefile.
351 - cctx_count wasn't always updated properly.
352 - Coro::State::cctx_stacksize wasn't applied correctly.
353 - new function Coro::State::cctx_max_idle.
354 - the default max number of idle C contexts is now 4.
355 - (libcoro) try harder to get _setjmp/_longjmp.
356 - (libcoro) cleanup and extend the libcoro API to officially
357 allow the creation of empty source contexts.
358 - very experimental workaround for the totally broken netbsd platform.
359 - tried to hack around openbsd bugs.
360
3614.804 Wed Nov 5 16:36:00 CET 2008
362 - Coro::Debug::new_unix_server would not create a non-blocking listening
363 socket, sometimes causing freezes.
364 - (libcoro) fix misaligned stack points for setjmp and assembly
365 methods, which can cause crashes on x86/x86_64 with a sufficiently
366 aggressive compiler.
367 - new function: Coro::Debug::new_tcp_server.
368 - move ->throw into the Coro class because it only works on coro objects.
369
3704.803 Mon Nov 3 17:16:12 CET 2008
371 - (libcoro) use a global asm statement to become independent of gcc
372 otpimisations for CORO_ASM (thanks to pippijn for the idea).
373 - try to workaround yet another broken bsd, this time dragonfly.
374
3754.802 Thu Oct 30 10:56:12 CET 2008
376 - support -fno-omit-frame-pointer on x86 with the assembly method.
377 - tune 01_unblock.t tests a bit.
378
3794.801 Wed Oct 22 18:33:37 CEST 2008
380 - improve readline speed for very long "lines".
381 - backport to 5.8.8.
382
3834.8 Thu Oct 2 13:34:40 CEST 2008
384 - new function Coro::AIO::aio_wait.
385 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
386 - greatly speed up and reduce memory usage of Coro::AIO requests.
387 - implement some other µ-optimisations.
388
3894.749 Mon Sep 29 14:40:12 CEST 2008
390 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
391
3924.748 Sat Sep 27 14:03:19 CEST 2008
393 - implement, but do not document, PerlIO::cede(granularity).
394 - Coro::Storable forgot to wrap Storable::pstore.
395 - work around the multitude of leaks and memory corruption
396 bugs in PerlIO::via by using our own C-level perliol. As a side
397 effect, Coro::Storable is now much, much, much faster.
398
3994.747 Tue Sep 23 01:59:41 CEST 2008
400 - fix a per-cv memleak (one empty array was leaked per
401 code reference).
402 - avoid a crash in coro->call|rss when the coroutine was already
403 destroyed (most noticably when using Coro::Debug::ps :)
404 - also protect *Storable::FILE.
405 - push up default storable granularity to 20ms.
406
4074.746 Sun Sep 21 03:22:20 CEST 2008
408 - be more insistent on locking Storable against reentrancy
409 in Coro::Storable.
410 - move swap_def?v and throw to Coro::State, as documented.
411
4124.745 Thu Jul 24 00:14:38 CEST 2008
413 - remove debugging code related to MgPV_nolen_const, also try to
414 make it compile with perl 5.8.6 (yes, apple apparently loves
415 outdated software). Reported by John S.
416
4174.744 Tue Jul 8 22:06:35 CEST 2008
418 - correctly provide default DIE/WARN handlers as documented.
419 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
420 implementations inside perl work fine for us.
421
4224.743 Mon Jun 16 00:21:57 CEST 2008
423 - when using Coro::EV without running EV::loop it could
424 result in busy-waiting for events, this has been fixed.
425 - reduce codesize and improve performance by using EV_DEFAULT_UC.
426
4274.742 Sat May 31 14:10:21 CEST 2008
428 - implement a workaround for (some) perl <5.8.8 versions.
429 - require EV 3.3+.
430
4314.741 Fri May 30 23:33:09 CEST 2008
432 - tell netbsd how utterly broken their imitation of an OS is
433 and refuse to build by default if pthreads are in use.
434 - switch to "s" method on all bsd's by default, as their ucontext
435 stuff seems just too broken.
436 - fix a bug in Coro::Select.
437
4384.74 Thu May 29 20:05:31 CEST 2008
439 - do not test Coro::LWP for lack of dependencies.
440 - do not test Coro::Select for lack of working perls.
441
4424.73 Thu May 29 2008
443 - fix a bug in Coro::EV which would cause it to block despite
444 there being runnable coroutines.
445 - sprinkle "no warnings" freely over everything, also suppress
446 warnings for some other modules.
447 - fix typo in WSAEWOULDBLOCK.
448
4494.72 Sun May 25 05:14:36 CEST 2008
450 - tweak META.yaml a bit, unfortunately, there is no documented way
451 to have optional dependencies with CPAN. doh :(
452 - avoid running some tests on windows because they would fail due to
453 perl bug (broken fork, broken pipes...).
454 - work around perl on windows bugs where perl returns undocumented
455 error codes for sysread, syswrite etc. by taking advantage
456 of AnyEvent's workaround for that problem.
457 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
458 a common perl implementation bug on windows.
459 - use unix domain sockets in testsuite to work around
460 common perl implementation bugs on widows (they are emulated by
461 tcp sockets on windows. ugh.)
462
4634.71 Sat May 24 20:01:27 CEST 2008
464 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
465 - take advantage of async name resolution of AnyEvent::Util.
466 - work around brutal inet_aton override in Coro::LWP.
467 - take advantage of the readyhook in Coro::EV, for smoother
468 scheduling.
469
4704.7 Sun May 11 00:32:19 CEST 2008
471 - completely reworked the Coro manpage.
472 - added Coro::AnyEvent, generic event loop integration.
473 - implement cancel, ready and kill commands in Coro::Debug.
474 - document find_coro in Coro::Debug.
475 - incompatible change: rename has_stack to has_cctx.
476 - Coro::AIO and Coro::BDB no longer force event model detection,
477 use AnyEvent::AIO and AnyEvent::BDB.
478
4794.6 Sat Apr 26 10:05:14 CEST 2008
480 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
481 by the Coro module. It was a mistake to have it in the first place.
482 - (experimental) support for activestate perl 5.10 (method "w").
483 - (experimental) support for strawberry perl (method "a").
484 - coro_sigelem_set did not return a value although it had to,
485 actual impact unknown.
486
4874.51 Mon Apr 14 13:28:27 CEST 2008
488 - make it compile again on 5.8.
489
4904.50 Thu Apr 10 09:43:17 CEST 2008
491 - I did it twice! (see 4.49).
492
4934.49 Sun Apr 6 21:23:31 CEST 2008
494 - grr, instead of compiling the recent changes on 5.10 only they
495 were compiled on 5.8 only.
496
4974.48 Sun Apr 6 20:36:46 CEST 2008
498 - allow coroutine switches during eval's under 5.10.x, as it seems
499 the parser is a per-interpreter option now, so this is safe
500 (this might fix the odd crashing bug).
501 - drop support for 5.9.x versions: they are dead, jim.
502
5034.47 Sun Apr 6 00:37:52 CEST 2008
504 - force cctx allocation on API calls: we know we need to force one
505 and gcc actually manages to confuse our heuristic nowadays,
506 leading to crashes and worse.
507 - document force_cctx.
508
5094.46 Fri Apr 4 22:05:43 CEST 2008
510 - upgrade libcoro, resulting in pthread-backend (which was only created
511 to fulfill the rules of the programming languages shootout).
512
5134.45 Thu Mar 13 11:55:36 CET 2008
514 - fix a file leaking bug in eg/mhyttpd that would allow
515 downloading of any file (reported by oesi).
516 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
517 (also add testcase).
518 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
519 apparently having loads of fun with that).
520 - implement $state->swap_defsv, ->swap_defav and document ->throw.
521
5224.4 Wed Feb 13 16:44:29 CET 2008
523 - only assume .cfi pseudo isns exist on GNU/Linux.
524 - add get_timed method to Coro::Channels.
525 - fixed Coro::Debug manpage.
526 - perl 5.11 compatbility improvement based on patch by
527 Andreas König.
528
5294.37 Sun Jan 20 11:25:23 CET 2008
530 - soften the check for an active parser for perl 5.10 (avoiding
531 "Coro::State::transfer called while parsing" in many cases).
532
5334.36 Sun Jan 13 10:53:56 CET 2008
534 - reset diehook when terminating from an async_pool as to not
535 trigger any __DIE__ handlers.
536
5374.35 Sun Jan 13 04:14:13 CET 2008
538 - "bt" debug command now displays any exceptions
539 from longmess and also skips the innermost
540 stackframes, giving more useufl output.
541 - allow backtraces in coroutines blocked in Coro::EV,
542 at a <1% speed hit.
543 - handle localising of $SIG{__WARN__} and __DIE__
544 properly (with a proper amount of dirty hacking).
545
5464.34 Sat Dec 22 17:49:53 CET 2007
547 - upgrade to EV version 2.0 API.
548
5494.33 Mon Dec 17 08:36:12 CET 2007
550 - make Coro::AIO etc. loadable in the absence of EV.
551
5524.32 Mon Dec 17 07:46:02 CET 2007
553 - majorly improved Coro::Handle's performance with Coro::EV.
554 - implemented the until now mythical Coro::BDB module.
555 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
556
5574.31 Wed Dec 5 12:32:39 CET 2007
558 - remove warn statement form Coro::Util.
559
5604.3 Tue Dec 4 20:33:14 CET 2007
561 - calls to the idle function could cause stack corruption
562 when the stack changed.
563 - do no longer rely on the presence of EV::DNS if EV is used
564 (because it is gone), but instead take avdantage of EV::ADNS
565 if available.
566 - add ($) prototypes to all functions in Coro::Storable.
567 - use a conventional (safer) idle callback in Coro::EV.
568 - do accept quickly in Coro::Debug to avoid endless loops.
569
5704.22 Fri Nov 30 16:04:04 CET 2007
571 - really use optimised versions for Event and EV in Coro::Util
572 and Coro::Handle.
573
5744.21 Sun Nov 25 10:48:59 CET 2007
575 - fix a spurious memory read.
576 - Coro::EV no longer keeps the eventloop "alive".
577
5784.2 Fri Nov 9 20:47:05 CET 2007
579 - enable/disable tracing from a new coroutine, not a pooled one.
580 - fix a memleak in Coro::Event.
581 - removed killall call from fork_eval.
582 - made sure store_fd is already loaded so that fork_eval
583 does not have to parse autoload in each subprocess.
584 - only use assembly method if -O switch is in $Config{optimize}.
585 - add (optional) Coro::EV module, so far the best event loop module
586 directly supported by Coro.
587 - if the event model is EV, use EV::DNS to resolve
588 stuff in Coro::Util.
589 - don't get confused by multiple event notifications in Coro::Handle.
590 - initial support for EV (libevent interface).
591 - require Event and EV using configure_requires, to force their existance.
592
5934.13 Wed Oct 24 07:26:45 CEST 2007
594 - add Coro::Storable::blocking_thaw.
595 - use a vastly more complicated technique to localise
596 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
597 - use a coroutine for the idle callback Coro::Event,
598 instead of running Event in the current coroutine context.
599 This also catches recursive invocations.
600 - actually report fork errors in gethostbyname and inet_aton.
601
6024.11 Thu Oct 11 02:40:24 CEST 2007
603 - port to threaded perls.
604
6054.1 Thu Oct 11 02:38:16 CEST 2007
606 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
607 be local to each coro (see Coro::State).
608 - incompatible change: for very deep reasons, cede and cede_notself
609 cannot return anything, so nothing will be returned.
610 - possibly bring back 5.10 compatibility (untested).
611 - work around stupid (and wrong) warning on 5.10 :(.
612 - overlay the saved state over the context stack. This saves
613 a few hundred bytes per coroutine on average and also
614 speeds up context switching a bit.
615 - further tune default stack sizes.
616 - (more) correctly calculate stack usage in coro_rss.
617 - Coro::Storable::blocking_* did not properly lock
618 resulting in races between coroutines.
619 - added Coro::Storable::guard.
620 - stopping to trace a coroutine could destroy the cctx of
621 an unrelated coroutine.
622 - explain the relationship between Perl and C coroutines in
623 more detail in Coro::State.
624 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
625 causing a fork per resolve. This also affected Coro::Socket.
626 - switch to a separate stack in $coro->call/eval to avoid
627 invalidating pointers.
628
6294.03 Sat Oct 6 21:24:00 CEST 2007
630 - added Coro::throw method.
631 - minor code cleanups.
632
6334.02 Sat Oct 6 02:36:47 CEST 2007
634 - fix a very minor per-coroutine memleak (a single codereference).
635 - fixed a bug where the currently in-use c context would be freed
636 prematurely (can happen only when programs change the stacksize
637 or use tracing).
638 - tracing can no longer keep a coro alive after it terminated.
639 - do static branch prediction in the common path for gcc. gives
640 about 2-5% speed improvement here.
641
6424.01 Fri Oct 5 22:10:49 CEST 2007
643 - instead of recreating *a* standard output handle we simply
644 use STDOUT, which is faster and hopefully more robust.
645
6464.0 Fri Oct 5 12:56:00 CEST 2007
647 - incompatibly changed Coro::Storable::freeze.
648 - major new feature: added Coro::Debug, for interactive coroutine
649 debugging, tracing and much more.
650 - major bug fix: unbelievable, but true: $_, $/ and many other
651 "saved" variables actually weren't being saved. This has been fixed,
652 of course, while increasing performance while losing all the save
653 flags.
654 - save flags are gone, and all the api functions dealing with them.
655 - added Coro::Semaphore::adjust.
656 - added Coro::Util::fork_eval.
657 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
658 - added Coro::killall.
659 - reduce initial stack sizes to allow for "micro-coroutines".
660 - better async_pool resource management, moved parts of async_pool
661 handling to XS (major speed improvement).
662 - actually croak before modifying important data structures.
663 - refuse to transfer while compiling.
664 - possibly support eval EXPR better now.
665 - enable assembly per default on linux+bsd x86+amd64.
666 - all internal members were renamed _something for easier subclassing.
667 - many minor tweaks.
668
6693.63 Wed May 16 14:10:06 CEST 2007
670 - implement handcoded assembly for x86/amd64 SVR ABI.
671
6723.62 Fri Apr 27 21:36:06 CEST 2007
673 - upgrade libcoro (which might set unwind info correctly).
674 - change default on linux to setjmp/longjmp.
675
6763.61 Thu Apr 19 12:36:18 CEST 2007
677 - Coro::Storable caused an endless loop when thawing invalid
678 pst's sometimes.
679 - use a Semaphore in Coro::Storable, as Storable doesn't
680 seem to be reentrant (although it is documented to
681 be threadsafe...).
682 - fix Coro::Signal to bring back the original unreliable
683 but stateful semantics.
684 - fixed a lot of typos in Coro.pm (patch submitted by David
685 Steinbrunner, which applied flawlessly).
686
6873.6 Sat Apr 14 17:13:31 CEST 2007
688 - added some bugfixes to get eg/myhttpd working again.
689 - added Coro::Storable for often-cede'ing freeze/thaw.
690 - try to do a clean exit when a coroutine calls exit
691 (EXPERIMENTAL).
692 - got rid of indirect call through _coro_init.
693 - updated the partly antique examples in eg/ to
694 work again and be a bit less magic, too.
695 - fixed Coro::Signal semantics to work as documented again.
696
6973.55 Sun Mar 25 01:20:47 CET 2007
698 - add SAVE_DEFFH to save the default filehandle and enable
699 it by default.
700 - finally move socket-operations from Coro::Socket to Coro::Handle
701 to be able to unblock foreign sockets.
702 - add Coro::State::save_also and guarded_save.
703 - add count accessor to Coro::Semaphore.
704 - add Coro::State::cctx_stacksize.
705 - just for the fun of it, do not rely on implicit context,
706 which can dramatically improve performance, but people
707 using windows-process-emulation perls do not care much about
708 performance.
709
7103.51 Sun Mar 4 14:18:04 CET 2007
711 - fixed a problem when you weakened references to Coro::State's
712 (patch by Yuval Kogman).
713
7143.501 Wed Feb 28 12:44:07 CET 2007
715 - rename some global symbols as macosx from hell redefines
716 them without asking.
717
7183.5 Tue Feb 13 20:22:53 CET 2007
719 - do AnyEvent model detection earlier, avoiding problems
720 caused by first using AnyEvent and later Coro::Event.
721 - implement and document Coro::Event event objects.
722 - fix a potential problem in Coro::Event causing crashes.
723 - initialise PL_comppad when creating a new coroutine,
724 avoids crashes on early coro destruction.
725
7263.41 Mon Jan 22 19:19:49 CET 2007
727 - readline on Coro::Handle did not support undefined $/,
728 nor did it deliver partial lines on EOF or error.
729 - implement malloc fallback for stack allocation because
730 stupid broken idiotic OSX has a stupid broken
731 idiotic fits-the-whole-os mmap "implementation" and
732 my dick feels longer if Coro is portable even to
733 obsolete platforms.
734
7353.4 Fri Jan 19 21:52:54 CET 2007
736 - remove t/09_timer.t, as it isn't really testing much
737 but was rather flaky in practise.
738 - async_pool coro would keep arguments and callback alive until
739 it was reused.
740 - cancellation of a coroutine could cause spurious idle calls
741 in cede_notself.
742
7433.3 Sat Jan 6 03:45:00 CET 2007
744 - implement $coro->on_destroy.
745 - Coro::Event blocking semantics have been changed,
746 documented and - hopefully - improved.
747 - fix nice adding, not subtracting, from priority.
748 - fix ->prio and api_is_ready (patch by Mark Hinds).
749 - fixed an assert ("... == prev__cctx->idle_te")
750 that could errronously trigger.
751 - fix various large and small memleaks.
752 - use a (hopefully) more stable cancel implementation
753 that immediately frees the coroutine data.
754 - cede/cede_notself return a status now.
755 - added Coro::guard function.
756 - added a global coroutine pool for jobs (on my machine,
757 I can create and execute 48k simple coros/s with async,
758 and 128k coros with async_pool).
759 - Coro::AIO now uses the coroutine priority as io priority.
760
7613.2 Fri Dec 22 05:07:09 CET 2006
762 - improve portability to slightly older perls.
763 - use cleaner coroutine destruction.
764 - simplify configuration for users.
765 - optionally (unrecommended) prefer perl functions over
766 their coro replacements.
767
7683.11 Tue Dec 5 13:11:24 CET 2006
769 - fixed some bogus assert's, but as perl.h disables assert even
770 without NDEBUG (thank you very much), not too many people should
771 notice (that did include myself). Andreas König noticed, though :)
772 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
773 it. Also noticed by Andreas König :)
774 - save/restore tainted status.
775 - verified to pass the testsuite on my 5.9.5.
776
7773.1 Mon Dec 4 23:03:40 CET 2006
778 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
779 - incompatible change: transfer flags are now per-state.
780 - give a better error message on deadlock.
781 - document Coro::nready.
782 - enhanced testsuite.
783
7843.01 Sun Dec 3 23:47:42 CET 2006
785 - forgot to include Coro::Timer.
786
7873.0 Sun Dec 3 22:57:25 CET 2006
788 - the "FINALLY COMPLETELY STABLE" release (coming soon:
789 the "FAMOUS LAST WORDS" release).
790 - implement a new stack sharing algorithm, which uses a stack
791 pool (size currently hardcoded).
792 - make stack sharing mandatory (it no longer uses a heuristic).
793 - eval/die no longer cause weird problems under heavy use.
794 - Coro::Event could cause livelocks if it was used but
795 no Coro::Event watchers were used.
796 - Coro::Event now uses asynccheck as prepare does not
797 check for changed watchers.
798 - Coro::Event allows multiple waiting coros and will wake up one
799 per event.
800 - Coro::Event should be cleaner and more efficient now.
801 - new utility function Coro::unblock_sub.
802 - document the sad fact that Event is no longer reentrant.
803 - putting a coroutine into the ready queue twice could under
804 some circumstances lead to stack corruption.
805 - minor incompatibility: subclassing Coro::State is supported
806 directly now without going through a _coro_state member.
807 - state/coro switching is much faster now.
808 - very minor optimisations and code/documentation cleanup.
809 - avoid problems due to compiler inlining.
810 - removed timers from Coro::Timer -> use AnyEvent instead.
811 - replaced Coro::idle coroutine by (cleaner) idle handler.
812 - updated to newest libcoro.
813 - implement enhanced support for valgrind.
814 - implement is_ready and return value for ready.
815 - removed Coro::Cont, it was a misnomer (it's generators),
816 and it was somewhat annoying to get it right. Will come back
817 if somebody asks for it :)
818 - many ->wait methods and Coro::Event could return
819 spuriously without the event having happened.
820
8212.5 Tue Nov 7 12:22:33 CET 2006
822 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
823 use AnyEvent, moved them to Coro/.
5 - added Coro::LWP which contains all the uglyness required to 824 - added Coro::LWP which contains all the uglyness required to
6 make LWP non-blocking. 825 make LWP non-blocking.
7 - should work with perl 5.9.x now (Andreas König made me do it). 826 - should work with perl 5.9.x now (Andreas König made me do it).
827 - fixed another bug in Coro::Select when the timeout was undef.
8 - reuse PL_start_env for all coros, saves some memory per coroutine. 828 - reuse PL_start_env for all coros, saves some memory per coroutine.
9 - manage PL_top_env differently, hopefully to avoid panic: top_env. 829 - manage PL_top_env differently, hopefully to avoid panic: top_env.
10 - timeout argument was not properly used in Coro::Socket. 830 - timeout argument was not properly used in Coro::Socket.
11 - allow limited forms of subclassing in Coro::Handle/Coro::Socket. 831 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
12 - emulate undocumented(!) functionality of IO::Socket required 832 - emulate undocumented(!) functionality of IO::Socket required
13 by LWP(!!). 833 by LWP(!!).
14 - updated eg/lwp to work with newer lwp's. 834 - updated eg/lwp to work with newer lwp's.
15 - made Coro::Util an AnyEvent user, moved it to Coro/.
16 - remove "FATAL: uncaught exception" prefix. Coroutines that die 835 - remove "FATAL: uncaught exception" prefix. Coroutines that die
17 kill the whole process, just as exceptions in the main "coroutine" 836 kill the whole process, just as exceptions in the main "coroutine"
18 did already. 837 did already.
19 838
202.1 Wed Nov 1 23:01:13 CET 2006 8392.1 Wed Nov 1 23:01:13 CET 2006

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