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Comparing Coro/Changes (file contents):
Revision 1.172 by root, Sun Dec 3 22:50:06 2006 UTC vs.
Revision 1.585 by root, Thu Aug 4 19:37:58 2011 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: transfer flags must be per state 3TODO: should explore PerlIO::coroaio (perl leaks like hell).
4TODO: channel->maxsize(newsize)?
5TODO: http://www.microsoft.com/msj/archive/s2ce.aspx
6
76.05 Thu Aug 4 21:36:36 CEST 2011
8 - blush, condvar values would not be propagated from send to recv anymore
9 (reported by Chip Salzenberg).
10 - use exponential increase for the readline buffer length in
11 Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes.
12
136.04 Wed Aug 3 17:15:45 CEST 2011
14 - use even more efficient and more compatible condvars for
15 compatibility to AnyEvent 6.x :)
16 - more inconsequential ecb.h updates.
17
186.03 Wed Aug 3 11:41:30 CEST 2011
19 - change how Coro patches AnyEvent condvars for compatibility to
20 AnyEvent 6.x.
21 - update ecb.h, to no longer include <pthread.h> in case WinNT.h
22 hasn't been included.
23
246.02 Wed Jul 13 04:35:19 CEST 2011
25 - "improve portability to Gentoo" - gentoo manages to put perl variables
26 in memory areas that are farther than 2gb apart, which the jit couldn't
27 handle and barfed. now it's just a bit slower on gentoo and similar
28 systems.
29
306.01 Sun Jul 3 12:31:14 CEST 2011
31 - workarounds are good, but the test for whether pthreads are used
32 was not good. thisone should be better.
33 - check differently whether gcc generates cfi instructions itself.
34
356.0 Wed Jun 29 19:43:35 CEST 2011
36 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
37 destroyed and cleaned up automatically (e.g. async { schedule }).
38 - implement a JIT compiler for part of the thread switch code,
39 which gives a 50% speed improvement on threaded perls, and
40 about 4% on non-thraeded perls (so threaded perls now finally
41 reach about half the speed of non-threaded perls).
42 - slightly modernise Coro::Intro, add section about rouse functions.
43 - avoid DEFSV and ERRSV, giving another 10% improvement
44 in thread switching.
45 - Coro::State->is_destroyed is now called is_zombie.
46 - implement a Coro->safe_cancel method that might fail, but
47 cancels in a "safer" way if it succeeds.
48 - add preliminary support for DEBUGGING perls.
49 - get rid of two hash-accesses when initialising a new Coro - this
50 speeds up coro creation by almost a factor of two.
51 - croak when a coro that is being cancelled tries to block
52 (e.g. while executing a guard block), instead of crashing or
53 deadlocking.
54 - use a more robust and also faster method to identify Coro::State
55 objects - speeds up everything a bit.
56 - implement Coro->cancel in XS for a 20% speed improvement, and to
57 be able to implement mutual cancellation.
58 - speed up context switches by a percent or two by more efficiently
59 allocating context stack entries.
60 - implement Coro->join and Coro->on_destroy in XS for a speedup and
61 a reduction in memory use.
62 - cancelling a coro while it itself is cancelling another coro is
63 now supported and working, instead of triggering an assertion.
64 - be a bit more crash-resistant when calling (buggy) on_destroy
65 callbacks (best effort).
66 - move on_destroy into the slf_frame, to allow extension slf
67 functions to have destructors.
68 - get rid if coro refcounting - simply crash in other interpreter
69 threads by nulling the pointers on clone.
70 - simplify warn/die hook handling when loading Coro - the convoluted
71 logic seems to be no longer neccessary.
72 - use libecb instead of our own home-grown gcc hacks.
73 - document alternatives to Coro::LWP. Please use them :)
74 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
75 sigaltstack. Really. wine suffers from it, erlang suffers from it,
76 and it's known since at least 2006.
77
785.372 Wed Feb 23 06:14:30 CET 2011
79 - apparently mingw doesn't provide a working gettimeofday, try to
80 work around that by relying on Time::HiRes (indirectly brought to
81 my attention by Max Maischein).
82 - fix some portability issues when Time::HiRes was used.
83
845.371 Mon Feb 21 14:36:08 CET 2011
85 - backport to windows process emulation code again.
86
875.37 Sat Feb 19 07:49:44 CET 2011
88 - add a big "Coro thread life cycle" section to "man Coro".
89 - try a tentative workaround against the breakage that 5.13 has
90 introduced without depreciation period. sigh.
91 - no longer use Time::HiRes if gettimeofday is available, which
92 saves quite a lot of memory.
93
945.36 Sun Feb 13 05:33:41 CET 2011
95 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
96 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
97 method call.
98 - undocument Coro::Timer::sleep and obsolete whole module.
99 - optimise Coro::Timer::timeout memory and cpu usage.
100 - slightly updated Coro::Intro for recent changes.
101 - do not initialise PL_dirty anymore.
102
1035.25 Thu Nov 11 01:08:39 CET 2010
104 - try a different approach on netbsd - netbsd 5 finally has marginally
105 working pthreads, but still broken ucontext/sigaltstack.
106 - openbsd 4.8 finally got their act together, Coro works out of the box
107 with asm, setjmp and pthreads (no change, just informational).
108
1095.24 Sat Oct 23 11:27:12 CEST 2010
110 - port to the EV 4.0 API.
111 - work around bugs in mingw32, making strawberry perl work
112 out of the box.
113 - correctly modify Coro::AIO function prototypes
114 so that they reflect the "no optional parameters" rule.
115 - "ported" libcoro to C++.
116
1175.23 Mon May 17 18:50:42 CEST 2010
118 - be more resistant to ordering changes when initialising
119 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
120 Waldorf).
121 - document that perl 5.12 deliberately removed support for cloning.
122
1235.22 Wed Apr 14 03:55:35 CEST 2010
124 - correctly return udnef on errors in Coro::Handle::read/write
125 (testcase by Marc Mims).
126 - convert Coro::Util into a "perl compatibility wrapper" - the functions
127 are less useful now, but are drop-in replacements for existing
128 functions, listing better alternatives in the documentation. This also
129 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
130 with Coro::Util::inet_aton.
131 - do not override $Coro::idle unconditionally in Coro.pm, as other
132 modules could have provided their own idle coro already
133 (for exmaple, Coro::AnyEvent).
134 - fix Coro::Util::gethost* functions.
135 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
136
1375.21 Wed Dec 16 07:19:51 CET 2009
138 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
139 together.
140 - add some examples on how to combine other event loops with Coro in
141 Coro::AnyEvent, and how to run it (and not to block). Seems to be
142 the most common source of confusion.
143 - try to catch people naively blocking in an event callback.
144 - work around the perl filehandle bug issue in conjunction with
145 older common::sense (as indirectly pointed out by ZSystem).
146 - clarify the "not from signal handlers" section.
147
1485.2 Sun Oct 4 14:54:24 CEST 2009
149 - Coro::Storable destroyed the prototypes of the functions it wrapped.
150 - export rouse_cb and rouse_wait by default now.
151 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
152 - new method $state->swap_sv.
153 - added section on "windows process emulation" to the manpage,
154 after a not-so-fruitful (nor-friendly) "discussion" with chip
155 salzenberg (discussion implies arguments, but his only arguments
156 were ad-hominems, one wonders why he started it in the first
157 place). I hope this explains it well enough for him to understand,
158 and maybe well enough for others to understand.
159 - use common::sense everywhere now.
160 - idle callbacks are no longer supported, use idle coros instead.
161 - print a thread listing when a deadlock is detected.
162
1635.17 Sat Aug 22 23:09:31 CEST 2009
164 - work around a bug in the perl debugger causing crashes
165 when running under the debugger by marking _pool_handler as nodebug.
166 - speed up Coro::async considerably.
167 - try some hacks to get netbsd to work "more often" - their broken
168 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
169 - convert Coro to AE 5.0 API.
170
1715.162 Tue Jul 28 04:04:03 CEST 2009
172 - perl 5.8.2 is now minimum requirement.
173 - skip t/19_handle.t on broken windows perls.
174
1755.161 Wed Jul 22 04:47:38 CEST 2009
176 - Coro::AnyEvent::poll could have a different prototype when EV was
177 used as backend (analyzed by Tatsuhiko Miyagawa).
178 - Coro::AnyEvent errornously initialised the event loop when loaded,
179 not on demand.
180 - try to workaround rare */t/01_unblock.t failures.
181
1825.16 Tue Jul 21 01:44:37 CEST 2009
183 - Coro::AnyEvent failed to hook into the event loop
184 when no threads had been readied between detecting
185 the event loop and actually running it.
186 - considerably speed up Coro::Select by taking avdantage
187 of AnyEvent > 4.8 and some other optimisations.
188 - implement paragraph readline mode in Coro::Handle
189 (based on patches by Zsbán Ambrus).
190 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
191 and analyzed by Yasuhiro MATSUMOTO).
192 - clarified libcoro license and copyright.
193 - someone stole my EXTRA_META!!!
194 - implement Coro::Select::patch_pp_sselect and it's brother,
195 for hardcode select overriding.
196
1975.151 Mon Jul 6 05:41:57 CEST 2009
198 - backport to windows process emulation code again (patch by
199 Yasuhiro MATSUMOTO).
200 - slightly update Coro::MakeMaker.
201
2025.15 Tue Jun 30 10:28:06 CEST 2009
203 - deprecate Coro::Socket, document how to get ipv6 support via
204 AnyEvent::Socket instead.
205 - implement signal->wait ($cb) interface, similar to semaphores.
206 - work around SvOK not supporting getmagic, so we have to getmagic
207 to test for undef :/ (reported by Matthias Waldorf).
208 - load Coro::AnyEvent in all modules using AnyEvent.
209 - work around perl corrupting our internal data structures,
210 reported by Tokuhiro Matsuno.
211 - enable per-coroutine real and cpu time gathering
212 (Coro::State::enable_times).
213
2145.14 Wed Jun 24 01:37:48 CEST 2009
215 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
216 as this seems to have been a difficult concept (poll, sleep, idle,
217 idle_upto).
218 - add Coro::AnyEvent::readable/writable functions.
219 - clarify Coro::EV/Event/AnyEvent manpages.
220 - free per-thread global scalars in the thread calling ->cancel, to
221 avoid crashes when $_, $@ etc., are magical but some of those
222 had already been freed.
223 - "unexperimentalise" the callback interface for Coro::Semaphore.
224 - speed up ready queue management/context switching by using a linked
225 list instead of an array (~5-10%).
226 - implement "watch" command in Coro::Debug shells.
227 - for fun, implement time-slicing as an example in the manpage.
228 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
229 Coro::Event, use the normal AnyEvent handling instead of dieing
230 (the same is true for Coro::Handle).
231 - properly document Coro::EV::timed_io_once.
232 - avoid unneccessary ->cancel calls in Coro::Handle.
233 - maybe make it work on mingw32 with win32 backend
234 (based on patch by Yasuhiro Matsumoto).
235
2365.132 Fri May 29 09:00:39 CEST 2009
237 - do not keep a reference to the argument itself in
238 Coro::Semaphore::guard, as it could change later.
239 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
240 should support a prepare callback.
241
2425.131 Mon Mar 16 23:20:37 CET 2009
243 - implement and document Coro->suspend, Coro->resume.
244 - fix Coro::Select implementation to not (often) close
245 the passed file descriptors (testcase provided by pippijn).
246
2475.13 Mon Dec 15 21:51:42 CET 2008
248 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
249 - don't set diehook to C<undef> but instead to NULL, to avoid
250 spurious warnings.
251 - fix a lot of bugs in Coro::SemaphoreSet.
252 - Coro::SemaphoreSet will less often create a semaphore needlessly.
253 - add Coro::SemaphoreSet::count and wait methods.
254 - take advantage of the new Guard module.
255 - deprecate Coro::guard.
256 - try to fix the dreaded 01_unblock tests once more. I hate it when
257 testsuites need more fixing than the code they are supposed to test.
258 - croak in more cases when a required callback isn't resolvable.
259 - fix some minor issues in Coro::State->call/eval.
260 - use current coroutine context instead of a temporary one
261 when temporarily switching to another coroutine.
262 - do not call C-level on_destroy handlers during global destruction,
263 to avoid needless segfaults.
264
2655.12 Sun Dec 7 13:30:38 CET 2008
266 - add default config for MirOS, which seems to be a bug-to-bug
267 compatible fork of openbsd ("world domination by releasing
268 openbsd cvs before the openbsd folks do it" or so :).
269 - free_padlist did destroy the names pad, not good, but didn't
270 seem to bother perl - this could fix issues such as eval ""
271 inside a function called from multiple coroutines.
272 - use a different method to detect destruction time.
273 - be more careful when freeing padlists just before global
274 destruction.
275 - fixed and expanded the call/cc example.
276 - renamed _terminate to _coro_run.
277 - new method Coro::Channel->shutdown.
278 - try pthreads on openbsd <4.4 (broken sigaltstack, will
279 pthreads fare better?).
280 - be less picky about destroying "a" running coroutine.
281
2825.11 Tue Nov 25 21:49:05 CET 2008
283 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
284 working code with failed assertions, introducing more bugs than
285 it fixes, requiring elaborate workarounds :(
286
2875.1 Mon Nov 24 08:54:59 CET 2008
288 - wrote a small introductory tutorial - Coro::Intro.
289 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
290 - Coro::Select did errornously dup the file descriptors
291 and didn't work with all AnyEvent backends.
292 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
293 LWP data transfers.
294 - disassociate c contexts from coro objects - this is agruably more
295 correct, but mostly allows sharing of cctxs between coro and state
296 objects, for added memory savings and speed increases.
297 - bumped $Coro::POOL_RSS up to 32kb by default.
298 - no longer set the optype to OP_CUSTOM, as B::* understandably
299 doesn't like this very much (and we *are* a type of entersub).
300 - implement state cloning, just to prove that call/cc can be done.
301 - automatically load Coro::AnyEvent in Coro::Handle.
302 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
303 do not have this method (and don't need it either).
304 - speed up generic anyevent methods in Coro::Handle by using rouse
305 callbacks.
306 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
307 others. It also makes the debugger happier, as you can trace
308 through the idle threads now.
309 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
310 - eg/event was pretty broken.
311 - better 5.8.6 compatibility.
312
3135.0 Thu Nov 20 10:35:05 CET 2008
314 - NEW ARCHITECTURE: use the latest 4.x version if you experience
315 stability issues.
316 - bump API version to 7 - all dependents must be recompiled.
317 - removed timed_* functions - they were not being used anyways
318 and should be replaced by a more generic mechanism -
319 and were annoying to support anyways :)
320 - removed SemaphoreSet's waiter method - use sem method instead.
321 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
322 - async_pool did free a scalar value twice
323 ("Attempt to unreference...").
324 - fix a longstanding bug where calling terminate on a coro that
325 was waiting for a semaphore that was just becoming available
326 would cause a deadlock (semaphore would get into a state where
327 it was available but waiters were still blocked).
328 - calling throw on a coroutine that is waiting for a semaphore will
329 no longer make it acquire the semaphore (and thus leak a count).
330 - perl's process emulation is now not even theoretically supported
331 anymore.
332 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
333 conversion of callback-style to blocking-style.
334 - new methods $coro->schedule_to and ->cede_to, to specifically
335 schedule or cede to a specific coroutine.
336 - new function Coro::Semaphore::wait.
337 - use named constants in Coro::Channel (Richard Hundt).
338 - directly patch the entersub opcode calling SLF functions (cede,
339 transfer and so on). this does speed up context switching, but
340 more importanly, it frees us from the hardcoded behaviour of
341 entersub, so we might actually be able to return something from
342 those functions and atcually create new ones.
343 - take advantage of __builtin_frame_address on gcc.
344 - expose THX in coroapi (not sure whether this was a wise decision,
345 as "threaded" perls are running at half speed anyways).
346 - implement execute_slf (schedule-like-function) interface that makes
347 it possible to implement schedule-like-functions in XS.
348 - use new SLF interface to massively speed up Coro::EV by roughly a
349 factor of two.
350 - used new SLF interface to massively speed up Coro::Semaphore by a
351 factor of three.
352 - used new SLF interface to speed up Coro::AIO by roughly a factor of
353 four and reduce its memory usage considerably.
354 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
355 for a nice speedup and vastly more correct behaviour. Also implement
356 a new method "sem" to get at the underlying semaphore object.
357 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
358 (in comparison) 20-40% speedup.
359 - used new SLF interface to reimplement Coro::Signal gaining
360 some unknown (because I was too lazy), but certain, speedup, and also
361 making signals reliable for the first time.
362 - used new SLF interface and other optimisations to speed up async_pool
363 by a factor of two. It also doesn't rely on perl's exception mechanism
364 to exit anymore. The overhead for terminating an async_pool, coro over
365 a normal async is now very small.
366 - sped up coroutine creation/destruction by 40%.
367 - forgot to include Coro/libcoro/README in the dist for all these years.
368 - work around a freebsd pthreads bug (manual testcancel is required as
369 pthread_cond_wait isn't a cancellation point on freebsd).
370 - use new rouse functions to speed up and simplify Coro::BDB.
371 - make "prefer perl native functions" work with threaded perls.
372 - condense Coro::Debug ps output, hint at v and w flags.
373 - (libcoro) lots of minor cleanups and portability improvements.
374
3754.914 Wed Nov 19 12:54:18 CET 2008
376 - fix a disastrous bug in the readline optimisation
377 introduced in 4.801.
378
3794.913 Sat Nov 15 07:58:28 CET 2008
380 - async_pool did free a scalar value twice
381 ("Attempt to unreference...").
382
3834.912 Thu Nov 13 18:31:23 CET 2008
384 - minor cleanups.
385 - use much larger stacks on linux and perl < 5.8.8.
386 - Coro::Debug::new_unix_server did not unlink the socket
387 when destroyed.
388
3894.911 Tue Nov 11 04:26:17 CET 2008
390 - "port" to threaded perls.
391
3924.91 Mon Nov 10 05:36:38 CET 2008
393 - the ->throw exception object no longer leaks.
394 - creating a new cctx leaked a scopestack entry (memleak).
395 - new coroutines didn't get created with a zero flags field
396 (unknown impact).
397 - calling ->throw on a not-yet-started coroutine should now work
398 instead of being ignored.
399 - ->throw is now supported on Coro::State objects.
400 - clean up cctx creation code a bit.
401 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
402
4034.9 Sat Nov 8 17:45:27 CET 2008
404 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
405 - (libcoro) no longer leak threads in the experimental pthread backend,
406 also speed it up considerably.
407 - (libcoro) do not rely on makecontext passing void *'s unscathed.
408 - fix compiletime dependencies on libcoro in the Makefile.
409 - cctx_count wasn't always updated properly.
410 - Coro::State::cctx_stacksize wasn't applied correctly.
411 - new function Coro::State::cctx_max_idle.
412 - the default max number of idle C contexts is now 4.
413 - (libcoro) try harder to get _setjmp/_longjmp.
414 - (libcoro) cleanup and extend the libcoro API to officially
415 allow the creation of empty source contexts.
416 - very experimental workaround for the totally broken netbsd platform.
417 - tried to hack around openbsd bugs.
418
4194.804 Wed Nov 5 16:36:00 CET 2008
420 - Coro::Debug::new_unix_server would not create a non-blocking listening
421 socket, sometimes causing freezes.
422 - (libcoro) fix misaligned stack points for setjmp and assembly
423 methods, which can cause crashes on x86/x86_64 with a sufficiently
424 aggressive compiler.
425 - new function: Coro::Debug::new_tcp_server.
426 - move ->throw into the Coro class because it only works on coro objects.
427
4284.803 Mon Nov 3 17:16:12 CET 2008
429 - (libcoro) use a global asm statement to become independent of gcc
430 otpimisations for CORO_ASM (thanks to pippijn for the idea).
431 - try to workaround yet another broken bsd, this time dragonfly.
432
4334.802 Thu Oct 30 10:56:12 CET 2008
434 - support -fno-omit-frame-pointer on x86 with the assembly method.
435 - tune 01_unblock.t tests a bit.
436
4374.801 Wed Oct 22 18:33:37 CEST 2008
438 - improve readline speed for very long "lines".
439 - backport to 5.8.8.
440
4414.8 Thu Oct 2 13:34:40 CEST 2008
442 - new function Coro::AIO::aio_wait.
443 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
444 - greatly speed up and reduce memory usage of Coro::AIO requests.
445 - implement some other µ-optimisations.
446
4474.749 Mon Sep 29 14:40:12 CEST 2008
448 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
449
4504.748 Sat Sep 27 14:03:19 CEST 2008
451 - implement, but do not document, PerlIO::cede(granularity).
452 - Coro::Storable forgot to wrap Storable::pstore.
453 - work around the multitude of leaks and memory corruption
454 bugs in PerlIO::via by using our own C-level perliol. As a side
455 effect, Coro::Storable is now much, much, much faster.
456
4574.747 Tue Sep 23 01:59:41 CEST 2008
458 - fix a per-cv memleak (one empty array was leaked per
459 code reference).
460 - avoid a crash in coro->call|rss when the coroutine was already
461 destroyed (most noticably when using Coro::Debug::ps :)
462 - also protect *Storable::FILE.
463 - push up default storable granularity to 20ms.
464
4654.746 Sun Sep 21 03:22:20 CEST 2008
466 - be more insistent on locking Storable against reentrancy
467 in Coro::Storable.
468 - move swap_def?v and throw to Coro::State, as documented.
469
4704.745 Thu Jul 24 00:14:38 CEST 2008
471 - remove debugging code related to MgPV_nolen_const, also try to
472 make it compile with perl 5.8.6 (yes, apple apparently loves
473 outdated software). Reported by John S.
474
4754.744 Tue Jul 8 22:06:35 CEST 2008
476 - correctly provide default DIE/WARN handlers as documented.
477 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
478 implementations inside perl work fine for us.
479
4804.743 Mon Jun 16 00:21:57 CEST 2008
481 - when using Coro::EV without running EV::loop it could
482 result in busy-waiting for events, this has been fixed.
483 - reduce codesize and improve performance by using EV_DEFAULT_UC.
484
4854.742 Sat May 31 14:10:21 CEST 2008
486 - implement a workaround for (some) perl <5.8.8 versions.
487 - require EV 3.3+.
488
4894.741 Fri May 30 23:33:09 CEST 2008
490 - tell netbsd how utterly broken their imitation of an OS is
491 and refuse to build by default if pthreads are in use.
492 - switch to "s" method on all bsd's by default, as their ucontext
493 stuff seems just too broken.
494 - fix a bug in Coro::Select.
495
4964.74 Thu May 29 20:05:31 CEST 2008
497 - do not test Coro::LWP for lack of dependencies.
498 - do not test Coro::Select for lack of working perls.
499
5004.73 Thu May 29 2008
501 - fix a bug in Coro::EV which would cause it to block despite
502 there being runnable coroutines.
503 - sprinkle "no warnings" freely over everything, also suppress
504 warnings for some other modules.
505 - fix typo in WSAEWOULDBLOCK.
506
5074.72 Sun May 25 05:14:36 CEST 2008
508 - tweak META.yaml a bit, unfortunately, there is no documented way
509 to have optional dependencies with CPAN. doh :(
510 - avoid running some tests on windows because they would fail due to
511 perl bug (broken fork, broken pipes...).
512 - work around perl on windows bugs where perl returns undocumented
513 error codes for sysread, syswrite etc. by taking advantage
514 of AnyEvent's workaround for that problem.
515 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
516 a common perl implementation bug on windows.
517 - use unix domain sockets in testsuite to work around
518 common perl implementation bugs on widows (they are emulated by
519 tcp sockets on windows. ugh.)
520
5214.71 Sat May 24 20:01:27 CEST 2008
522 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
523 - take advantage of async name resolution of AnyEvent::Util.
524 - work around brutal inet_aton override in Coro::LWP.
525 - take advantage of the readyhook in Coro::EV, for smoother
526 scheduling.
527
5284.7 Sun May 11 00:32:19 CEST 2008
529 - completely reworked the Coro manpage.
530 - added Coro::AnyEvent, generic event loop integration.
531 - implement cancel, ready and kill commands in Coro::Debug.
532 - document find_coro in Coro::Debug.
533 - incompatible change: rename has_stack to has_cctx.
534 - Coro::AIO and Coro::BDB no longer force event model detection,
535 use AnyEvent::AIO and AnyEvent::BDB.
536
5374.6 Sat Apr 26 10:05:14 CEST 2008
538 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
539 by the Coro module. It was a mistake to have it in the first place.
540 - (experimental) support for activestate perl 5.10 (method "w").
541 - (experimental) support for strawberry perl (method "a").
542 - coro_sigelem_set did not return a value although it had to,
543 actual impact unknown.
544
5454.51 Mon Apr 14 13:28:27 CEST 2008
546 - make it compile again on 5.8.
547
5484.50 Thu Apr 10 09:43:17 CEST 2008
549 - I did it twice! (see 4.49).
550
5514.49 Sun Apr 6 21:23:31 CEST 2008
552 - grr, instead of compiling the recent changes on 5.10 only they
553 were compiled on 5.8 only.
554
5554.48 Sun Apr 6 20:36:46 CEST 2008
556 - allow coroutine switches during eval's under 5.10.x, as it seems
557 the parser is a per-interpreter option now, so this is safe
558 (this might fix the odd crashing bug).
559 - drop support for 5.9.x versions: they are dead, jim.
560
5614.47 Sun Apr 6 00:37:52 CEST 2008
562 - force cctx allocation on API calls: we know we need to force one
563 and gcc actually manages to confuse our heuristic nowadays,
564 leading to crashes and worse.
565 - document force_cctx.
566
5674.46 Fri Apr 4 22:05:43 CEST 2008
568 - upgrade libcoro, resulting in pthread-backend (which was only created
569 to fulfill the rules of the programming languages shootout).
570
5714.45 Thu Mar 13 11:55:36 CET 2008
572 - fix a file leaking bug in eg/mhyttpd that would allow
573 downloading of any file (reported by oesi).
574 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
575 (also add testcase).
576 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
577 apparently having loads of fun with that).
578 - implement $state->swap_defsv, ->swap_defav and document ->throw.
579
5804.4 Wed Feb 13 16:44:29 CET 2008
581 - only assume .cfi pseudo isns exist on GNU/Linux.
582 - add get_timed method to Coro::Channels.
583 - fixed Coro::Debug manpage.
584 - perl 5.11 compatbility improvement based on patch by
585 Andreas König.
586
5874.37 Sun Jan 20 11:25:23 CET 2008
588 - soften the check for an active parser for perl 5.10 (avoiding
589 "Coro::State::transfer called while parsing" in many cases).
590
5914.36 Sun Jan 13 10:53:56 CET 2008
592 - reset diehook when terminating from an async_pool as to not
593 trigger any __DIE__ handlers.
594
5954.35 Sun Jan 13 04:14:13 CET 2008
596 - "bt" debug command now displays any exceptions
597 from longmess and also skips the innermost
598 stackframes, giving more useufl output.
599 - allow backtraces in coroutines blocked in Coro::EV,
600 at a <1% speed hit.
601 - handle localising of $SIG{__WARN__} and __DIE__
602 properly (with a proper amount of dirty hacking).
603
6044.34 Sat Dec 22 17:49:53 CET 2007
605 - upgrade to EV version 2.0 API.
606
6074.33 Mon Dec 17 08:36:12 CET 2007
608 - make Coro::AIO etc. loadable in the absence of EV.
609
6104.32 Mon Dec 17 07:46:02 CET 2007
611 - majorly improved Coro::Handle's performance with Coro::EV.
612 - implemented the until now mythical Coro::BDB module.
613 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
614
6154.31 Wed Dec 5 12:32:39 CET 2007
616 - remove warn statement form Coro::Util.
617
6184.3 Tue Dec 4 20:33:14 CET 2007
619 - calls to the idle function could cause stack corruption
620 when the stack changed.
621 - do no longer rely on the presence of EV::DNS if EV is used
622 (because it is gone), but instead take avdantage of EV::ADNS
623 if available.
624 - add ($) prototypes to all functions in Coro::Storable.
625 - use a conventional (safer) idle callback in Coro::EV.
626 - do accept quickly in Coro::Debug to avoid endless loops.
627
6284.22 Fri Nov 30 16:04:04 CET 2007
629 - really use optimised versions for Event and EV in Coro::Util
630 and Coro::Handle.
631
6324.21 Sun Nov 25 10:48:59 CET 2007
633 - fix a spurious memory read.
634 - Coro::EV no longer keeps the eventloop "alive".
635
6364.2 Fri Nov 9 20:47:05 CET 2007
637 - enable/disable tracing from a new coroutine, not a pooled one.
638 - fix a memleak in Coro::Event.
639 - removed killall call from fork_eval.
640 - made sure store_fd is already loaded so that fork_eval
641 does not have to parse autoload in each subprocess.
642 - only use assembly method if -O switch is in $Config{optimize}.
643 - add (optional) Coro::EV module, so far the best event loop module
644 directly supported by Coro.
645 - if the event model is EV, use EV::DNS to resolve
646 stuff in Coro::Util.
647 - don't get confused by multiple event notifications in Coro::Handle.
648 - initial support for EV (libevent interface).
649 - require Event and EV using configure_requires, to force their existance.
650
6514.13 Wed Oct 24 07:26:45 CEST 2007
652 - add Coro::Storable::blocking_thaw.
653 - use a vastly more complicated technique to localise
654 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
655 - use a coroutine for the idle callback Coro::Event,
656 instead of running Event in the current coroutine context.
657 This also catches recursive invocations.
658 - actually report fork errors in gethostbyname and inet_aton.
659
6604.11 Thu Oct 11 02:40:24 CEST 2007
661 - port to threaded perls.
662
6634.1 Thu Oct 11 02:38:16 CEST 2007
664 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
665 be local to each coro (see Coro::State).
666 - incompatible change: for very deep reasons, cede and cede_notself
667 cannot return anything, so nothing will be returned.
668 - possibly bring back 5.10 compatibility (untested).
669 - work around stupid (and wrong) warning on 5.10 :(.
670 - overlay the saved state over the context stack. This saves
671 a few hundred bytes per coroutine on average and also
672 speeds up context switching a bit.
673 - further tune default stack sizes.
674 - (more) correctly calculate stack usage in coro_rss.
675 - Coro::Storable::blocking_* did not properly lock
676 resulting in races between coroutines.
677 - added Coro::Storable::guard.
678 - stopping to trace a coroutine could destroy the cctx of
679 an unrelated coroutine.
680 - explain the relationship between Perl and C coroutines in
681 more detail in Coro::State.
682 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
683 causing a fork per resolve. This also affected Coro::Socket.
684 - switch to a separate stack in $coro->call/eval to avoid
685 invalidating pointers.
686
6874.03 Sat Oct 6 21:24:00 CEST 2007
688 - added Coro::throw method.
689 - minor code cleanups.
690
6914.02 Sat Oct 6 02:36:47 CEST 2007
692 - fix a very minor per-coroutine memleak (a single codereference).
693 - fixed a bug where the currently in-use c context would be freed
694 prematurely (can happen only when programs change the stacksize
695 or use tracing).
696 - tracing can no longer keep a coro alive after it terminated.
697 - do static branch prediction in the common path for gcc. gives
698 about 2-5% speed improvement here.
699
7004.01 Fri Oct 5 22:10:49 CEST 2007
701 - instead of recreating *a* standard output handle we simply
702 use STDOUT, which is faster and hopefully more robust.
703
7044.0 Fri Oct 5 12:56:00 CEST 2007
705 - incompatibly changed Coro::Storable::freeze.
706 - major new feature: added Coro::Debug, for interactive coroutine
707 debugging, tracing and much more.
708 - major bug fix: unbelievable, but true: $_, $/ and many other
709 "saved" variables actually weren't being saved. This has been fixed,
710 of course, while increasing performance while losing all the save
711 flags.
712 - save flags are gone, and all the api functions dealing with them.
713 - added Coro::Semaphore::adjust.
714 - added Coro::Util::fork_eval.
715 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
716 - added Coro::killall.
717 - reduce initial stack sizes to allow for "micro-coroutines".
718 - better async_pool resource management, moved parts of async_pool
719 handling to XS (major speed improvement).
720 - actually croak before modifying important data structures.
721 - refuse to transfer while compiling.
722 - possibly support eval EXPR better now.
723 - enable assembly per default on linux+bsd x86+amd64.
724 - all internal members were renamed _something for easier subclassing.
725 - many minor tweaks.
726
7273.63 Wed May 16 14:10:06 CEST 2007
728 - implement handcoded assembly for x86/amd64 SVR ABI.
729
7303.62 Fri Apr 27 21:36:06 CEST 2007
731 - upgrade libcoro (which might set unwind info correctly).
732 - change default on linux to setjmp/longjmp.
733
7343.61 Thu Apr 19 12:36:18 CEST 2007
735 - Coro::Storable caused an endless loop when thawing invalid
736 pst's sometimes.
737 - use a Semaphore in Coro::Storable, as Storable doesn't
738 seem to be reentrant (although it is documented to
739 be threadsafe...).
740 - fix Coro::Signal to bring back the original unreliable
741 but stateful semantics.
742 - fixed a lot of typos in Coro.pm (patch submitted by David
743 Steinbrunner, which applied flawlessly).
744
7453.6 Sat Apr 14 17:13:31 CEST 2007
746 - added some bugfixes to get eg/myhttpd working again.
747 - added Coro::Storable for often-cede'ing freeze/thaw.
748 - try to do a clean exit when a coroutine calls exit
749 (EXPERIMENTAL).
750 - got rid of indirect call through _coro_init.
751 - updated the partly antique examples in eg/ to
752 work again and be a bit less magic, too.
753 - fixed Coro::Signal semantics to work as documented again.
754
7553.55 Sun Mar 25 01:20:47 CET 2007
756 - add SAVE_DEFFH to save the default filehandle and enable
757 it by default.
758 - finally move socket-operations from Coro::Socket to Coro::Handle
759 to be able to unblock foreign sockets.
760 - add Coro::State::save_also and guarded_save.
761 - add count accessor to Coro::Semaphore.
762 - add Coro::State::cctx_stacksize.
763 - just for the fun of it, do not rely on implicit context,
764 which can dramatically improve performance, but people
765 using windows-process-emulation perls do not care much about
766 performance.
767
7683.51 Sun Mar 4 14:18:04 CET 2007
769 - fixed a problem when you weakened references to Coro::State's
770 (patch by Yuval Kogman).
771
7723.501 Wed Feb 28 12:44:07 CET 2007
773 - rename some global symbols as macosx from hell redefines
774 them without asking.
775
7763.5 Tue Feb 13 20:22:53 CET 2007
777 - do AnyEvent model detection earlier, avoiding problems
778 caused by first using AnyEvent and later Coro::Event.
779 - implement and document Coro::Event event objects.
780 - fix a potential problem in Coro::Event causing crashes.
781 - initialise PL_comppad when creating a new coroutine,
782 avoids crashes on early coro destruction.
783
7843.41 Mon Jan 22 19:19:49 CET 2007
785 - readline on Coro::Handle did not support undefined $/,
786 nor did it deliver partial lines on EOF or error.
787 - implement malloc fallback for stack allocation because
788 stupid broken idiotic OSX has a stupid broken
789 idiotic fits-the-whole-os mmap "implementation" and
790 my dick feels longer if Coro is portable even to
791 obsolete platforms.
792
7933.4 Fri Jan 19 21:52:54 CET 2007
794 - remove t/09_timer.t, as it isn't really testing much
795 but was rather flaky in practise.
796 - async_pool coro would keep arguments and callback alive until
797 it was reused.
798 - cancellation of a coroutine could cause spurious idle calls
799 in cede_notself.
800
8013.3 Sat Jan 6 03:45:00 CET 2007
802 - implement $coro->on_destroy.
803 - Coro::Event blocking semantics have been changed,
804 documented and - hopefully - improved.
805 - fix nice adding, not subtracting, from priority.
806 - fix ->prio and api_is_ready (patch by Mark Hinds).
807 - fixed an assert ("... == prev__cctx->idle_te")
808 that could errronously trigger.
809 - fix various large and small memleaks.
810 - use a (hopefully) more stable cancel implementation
811 that immediately frees the coroutine data.
812 - cede/cede_notself return a status now.
813 - added Coro::guard function.
814 - added a global coroutine pool for jobs (on my machine,
815 I can create and execute 48k simple coros/s with async,
816 and 128k coros with async_pool).
817 - Coro::AIO now uses the coroutine priority as io priority.
818
8193.2 Fri Dec 22 05:07:09 CET 2006
820 - improve portability to slightly older perls.
821 - use cleaner coroutine destruction.
822 - simplify configuration for users.
823 - optionally (unrecommended) prefer perl functions over
824 their coro replacements.
825
8263.11 Tue Dec 5 13:11:24 CET 2006
827 - fixed some bogus assert's, but as perl.h disables assert even
828 without NDEBUG (thank you very much), not too many people should
829 notice (that did include myself). Andreas König noticed, though :)
830 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
831 it. Also noticed by Andreas König :)
832 - save/restore tainted status.
833 - verified to pass the testsuite on my 5.9.5.
834
8353.1 Mon Dec 4 23:03:40 CET 2006
836 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
837 - incompatible change: transfer flags are now per-state.
838 - give a better error message on deadlock.
839 - document Coro::nready.
840 - enhanced testsuite.
4 841
53.01 Sun Dec 3 23:47:42 CET 2006 8423.01 Sun Dec 3 23:47:42 CET 2006
6 - forgot to include Coro::Timer. 843 - forgot to include Coro::Timer.
7 844
83.0 Sun Dec 3 22:57:25 CET 2006 8453.0 Sun Dec 3 22:57:25 CET 2006

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