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Comparing Coro/Changes (file contents):
Revision 1.217 by root, Wed Apr 11 03:05:15 2007 UTC vs.
Revision 1.591 by root, Sun May 27 16:36:05 2012 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: http://www.microsoft.com/msj/archive/s2ce.aspx
6TODO: __GCC_HAVE_DWARF2_CFI_ASM
5 7
8 - use fd = -1 in mmap.
9
106.08 Fri Apr 13 12:05:47 CEST 2012
11 - be more aggressive about exiting like perl does - formerly,
12 exiting from the non-main thread would not execute END blocks.
13
146.07 Fri Nov 11 21:21:48 CET 2011
15 - work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV).
16 - update ecb.h.
17
186.06 Mon Aug 8 23:59:48 CEST 2011
19 - cygwin unfortunately patches the stack at runtime, so we use the pthreads
20 backend, which is an order of magnitude slower. unfortunately, cygwins
21 pthread implementation isn't very complete either, so allocate the stack
22 twice just to be sure.
23 (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS,
24 in its ithreaded perl - best recompile cygwin and use the 'w'indows
25 backend for much better performance. also disable ithreads for
26 even better performance...).
27
286.05 Thu Aug 4 21:36:36 CEST 2011
29 - blush, condvar values would not be propagated from send to recv anymore
30 (reported by Chip Salzenberg).
31 - use exponential increase for the readline buffer length in
32 Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes.
33
346.04 Wed Aug 3 17:15:45 CEST 2011
35 - use even more efficient and more compatible condvars for
36 compatibility to AnyEvent 6.x :)
37 - more inconsequential ecb.h updates.
38
396.03 Wed Aug 3 11:41:30 CEST 2011
40 - change how Coro patches AnyEvent condvars for compatibility to
41 AnyEvent 6.x.
42 - update ecb.h, to no longer include <pthread.h> in case WinNT.h
43 hasn't been included.
44
456.02 Wed Jul 13 04:35:19 CEST 2011
46 - "improve portability to Gentoo" - gentoo manages to put perl variables
47 in memory areas that are farther than 2gb apart, which the jit couldn't
48 handle and barfed. now it's just a bit slower on gentoo and similar
49 systems.
50
516.01 Sun Jul 3 12:31:14 CEST 2011
52 - workarounds are good, but the test for whether pthreads are used
53 was not good. thisone should be better.
54 - check differently whether gcc generates cfi instructions itself.
55
566.0 Wed Jun 29 19:43:35 CEST 2011
57 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
58 destroyed and cleaned up automatically (e.g. async { schedule }).
59 - implement a JIT compiler for part of the thread switch code,
60 which gives a 50% speed improvement on threaded perls, and
61 about 4% on non-thraeded perls (so threaded perls now finally
62 reach about half the speed of non-threaded perls).
63 - slightly modernise Coro::Intro, add section about rouse functions.
64 - avoid DEFSV and ERRSV, giving another 10% improvement
65 in thread switching.
66 - Coro::State->is_destroyed is now called is_zombie.
67 - implement a Coro->safe_cancel method that might fail, but
68 cancels in a "safer" way if it succeeds.
69 - add preliminary support for DEBUGGING perls.
70 - get rid of two hash-accesses when initialising a new Coro - this
71 speeds up coro creation by almost a factor of two.
72 - croak when a coro that is being cancelled tries to block
73 (e.g. while executing a guard block), instead of crashing or
74 deadlocking.
75 - use a more robust and also faster method to identify Coro::State
76 objects - speeds up everything a bit.
77 - implement Coro->cancel in XS for a 20% speed improvement, and to
78 be able to implement mutual cancellation.
79 - speed up context switches by a percent or two by more efficiently
80 allocating context stack entries.
81 - implement Coro->join and Coro->on_destroy in XS for a speedup and
82 a reduction in memory use.
83 - cancelling a coro while it itself is cancelling another coro is
84 now supported and working, instead of triggering an assertion.
85 - be a bit more crash-resistant when calling (buggy) on_destroy
86 callbacks (best effort).
87 - move on_destroy into the slf_frame, to allow extension slf
88 functions to have destructors.
89 - get rid if coro refcounting - simply crash in other interpreter
90 threads by nulling the pointers on clone.
91 - simplify warn/die hook handling when loading Coro - the convoluted
92 logic seems to be no longer neccessary.
93 - use libecb instead of our own home-grown gcc hacks.
94 - document alternatives to Coro::LWP. Please use them :)
95 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
96 sigaltstack. Really. wine suffers from it, erlang suffers from it,
97 and it's known since at least 2006.
98
995.372 Wed Feb 23 06:14:30 CET 2011
100 - apparently mingw doesn't provide a working gettimeofday, try to
101 work around that by relying on Time::HiRes (indirectly brought to
102 my attention by Max Maischein).
103 - fix some portability issues when Time::HiRes was used.
104
1055.371 Mon Feb 21 14:36:08 CET 2011
106 - backport to windows process emulation code again.
107
1085.37 Sat Feb 19 07:49:44 CET 2011
109 - add a big "Coro thread life cycle" section to "man Coro".
110 - try a tentative workaround against the breakage that 5.13 has
111 introduced without depreciation period. sigh.
112 - no longer use Time::HiRes if gettimeofday is available, which
113 saves quite a lot of memory.
114
1155.36 Sun Feb 13 05:33:41 CET 2011
116 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
117 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
118 method call.
119 - undocument Coro::Timer::sleep and obsolete whole module.
120 - optimise Coro::Timer::timeout memory and cpu usage.
121 - slightly updated Coro::Intro for recent changes.
122 - do not initialise PL_dirty anymore.
123
1245.25 Thu Nov 11 01:08:39 CET 2010
125 - try a different approach on netbsd - netbsd 5 finally has marginally
126 working pthreads, but still broken ucontext/sigaltstack.
127 - openbsd 4.8 finally got their act together, Coro works out of the box
128 with asm, setjmp and pthreads (no change, just informational).
129
1305.24 Sat Oct 23 11:27:12 CEST 2010
131 - port to the EV 4.0 API.
132 - work around bugs in mingw32, making strawberry perl work
133 out of the box.
134 - correctly modify Coro::AIO function prototypes
135 so that they reflect the "no optional parameters" rule.
136 - "ported" libcoro to C++.
137
1385.23 Mon May 17 18:50:42 CEST 2010
139 - be more resistant to ordering changes when initialising
140 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
141 Waldorf).
142 - document that perl 5.12 deliberately removed support for cloning.
143
1445.22 Wed Apr 14 03:55:35 CEST 2010
145 - correctly return udnef on errors in Coro::Handle::read/write
146 (testcase by Marc Mims).
147 - convert Coro::Util into a "perl compatibility wrapper" - the functions
148 are less useful now, but are drop-in replacements for existing
149 functions, listing better alternatives in the documentation. This also
150 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
151 with Coro::Util::inet_aton.
152 - do not override $Coro::idle unconditionally in Coro.pm, as other
153 modules could have provided their own idle coro already
154 (for exmaple, Coro::AnyEvent).
155 - fix Coro::Util::gethost* functions.
156 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
157
1585.21 Wed Dec 16 07:19:51 CET 2009
159 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
160 together.
161 - add some examples on how to combine other event loops with Coro in
162 Coro::AnyEvent, and how to run it (and not to block). Seems to be
163 the most common source of confusion.
164 - try to catch people naively blocking in an event callback.
165 - work around the perl filehandle bug issue in conjunction with
166 older common::sense (as indirectly pointed out by ZSystem).
167 - clarify the "not from signal handlers" section.
168
1695.2 Sun Oct 4 14:54:24 CEST 2009
170 - Coro::Storable destroyed the prototypes of the functions it wrapped.
171 - export rouse_cb and rouse_wait by default now.
172 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
173 - new method $state->swap_sv.
174 - added section on "windows process emulation" to the manpage,
175 after a not-so-fruitful (nor-friendly) "discussion" with chip
176 salzenberg (discussion implies arguments, but his only arguments
177 were ad-hominems, one wonders why he started it in the first
178 place). I hope this explains it well enough for him to understand,
179 and maybe well enough for others to understand.
180 - use common::sense everywhere now.
181 - idle callbacks are no longer supported, use idle coros instead.
182 - print a thread listing when a deadlock is detected.
183
1845.17 Sat Aug 22 23:09:31 CEST 2009
185 - work around a bug in the perl debugger causing crashes
186 when running under the debugger by marking _pool_handler as nodebug.
187 - speed up Coro::async considerably.
188 - try some hacks to get netbsd to work "more often" - their broken
189 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
190 - convert Coro to AE 5.0 API.
191
1925.162 Tue Jul 28 04:04:03 CEST 2009
193 - perl 5.8.2 is now minimum requirement.
194 - skip t/19_handle.t on broken windows perls.
195
1965.161 Wed Jul 22 04:47:38 CEST 2009
197 - Coro::AnyEvent::poll could have a different prototype when EV was
198 used as backend (analyzed by Tatsuhiko Miyagawa).
199 - Coro::AnyEvent errornously initialised the event loop when loaded,
200 not on demand.
201 - try to workaround rare */t/01_unblock.t failures.
202
2035.16 Tue Jul 21 01:44:37 CEST 2009
204 - Coro::AnyEvent failed to hook into the event loop
205 when no threads had been readied between detecting
206 the event loop and actually running it.
207 - considerably speed up Coro::Select by taking avdantage
208 of AnyEvent > 4.8 and some other optimisations.
209 - implement paragraph readline mode in Coro::Handle
210 (based on patches by Zsbán Ambrus).
211 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
212 and analyzed by Yasuhiro MATSUMOTO).
213 - clarified libcoro license and copyright.
214 - someone stole my EXTRA_META!!!
215 - implement Coro::Select::patch_pp_sselect and it's brother,
216 for hardcode select overriding.
217
2185.151 Mon Jul 6 05:41:57 CEST 2009
219 - backport to windows process emulation code again (patch by
220 Yasuhiro MATSUMOTO).
221 - slightly update Coro::MakeMaker.
222
2235.15 Tue Jun 30 10:28:06 CEST 2009
224 - deprecate Coro::Socket, document how to get ipv6 support via
225 AnyEvent::Socket instead.
226 - implement signal->wait ($cb) interface, similar to semaphores.
227 - work around SvOK not supporting getmagic, so we have to getmagic
228 to test for undef :/ (reported by Matthias Waldorf).
229 - load Coro::AnyEvent in all modules using AnyEvent.
230 - work around perl corrupting our internal data structures,
231 reported by Tokuhiro Matsuno.
232 - enable per-coroutine real and cpu time gathering
233 (Coro::State::enable_times).
234
2355.14 Wed Jun 24 01:37:48 CEST 2009
236 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
237 as this seems to have been a difficult concept (poll, sleep, idle,
238 idle_upto).
239 - add Coro::AnyEvent::readable/writable functions.
240 - clarify Coro::EV/Event/AnyEvent manpages.
241 - free per-thread global scalars in the thread calling ->cancel, to
242 avoid crashes when $_, $@ etc., are magical but some of those
243 had already been freed.
244 - "unexperimentalise" the callback interface for Coro::Semaphore.
245 - speed up ready queue management/context switching by using a linked
246 list instead of an array (~5-10%).
247 - implement "watch" command in Coro::Debug shells.
248 - for fun, implement time-slicing as an example in the manpage.
249 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
250 Coro::Event, use the normal AnyEvent handling instead of dieing
251 (the same is true for Coro::Handle).
252 - properly document Coro::EV::timed_io_once.
253 - avoid unneccessary ->cancel calls in Coro::Handle.
254 - maybe make it work on mingw32 with win32 backend
255 (based on patch by Yasuhiro Matsumoto).
256
2575.132 Fri May 29 09:00:39 CEST 2009
258 - do not keep a reference to the argument itself in
259 Coro::Semaphore::guard, as it could change later.
260 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
261 should support a prepare callback.
262
2635.131 Mon Mar 16 23:20:37 CET 2009
264 - implement and document Coro->suspend, Coro->resume.
265 - fix Coro::Select implementation to not (often) close
266 the passed file descriptors (testcase provided by pippijn).
267
2685.13 Mon Dec 15 21:51:42 CET 2008
269 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
270 - don't set diehook to C<undef> but instead to NULL, to avoid
271 spurious warnings.
272 - fix a lot of bugs in Coro::SemaphoreSet.
273 - Coro::SemaphoreSet will less often create a semaphore needlessly.
274 - add Coro::SemaphoreSet::count and wait methods.
275 - take advantage of the new Guard module.
276 - deprecate Coro::guard.
277 - try to fix the dreaded 01_unblock tests once more. I hate it when
278 testsuites need more fixing than the code they are supposed to test.
279 - croak in more cases when a required callback isn't resolvable.
280 - fix some minor issues in Coro::State->call/eval.
281 - use current coroutine context instead of a temporary one
282 when temporarily switching to another coroutine.
283 - do not call C-level on_destroy handlers during global destruction,
284 to avoid needless segfaults.
285
2865.12 Sun Dec 7 13:30:38 CET 2008
287 - add default config for MirOS, which seems to be a bug-to-bug
288 compatible fork of openbsd ("world domination by releasing
289 openbsd cvs before the openbsd folks do it" or so :).
290 - free_padlist did destroy the names pad, not good, but didn't
291 seem to bother perl - this could fix issues such as eval ""
292 inside a function called from multiple coroutines.
293 - use a different method to detect destruction time.
294 - be more careful when freeing padlists just before global
295 destruction.
296 - fixed and expanded the call/cc example.
297 - renamed _terminate to _coro_run.
298 - new method Coro::Channel->shutdown.
299 - try pthreads on openbsd <4.4 (broken sigaltstack, will
300 pthreads fare better?).
301 - be less picky about destroying "a" running coroutine.
302
3035.11 Tue Nov 25 21:49:05 CET 2008
304 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
305 working code with failed assertions, introducing more bugs than
306 it fixes, requiring elaborate workarounds :(
307
3085.1 Mon Nov 24 08:54:59 CET 2008
309 - wrote a small introductory tutorial - Coro::Intro.
310 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
311 - Coro::Select did errornously dup the file descriptors
312 and didn't work with all AnyEvent backends.
313 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
314 LWP data transfers.
315 - disassociate c contexts from coro objects - this is agruably more
316 correct, but mostly allows sharing of cctxs between coro and state
317 objects, for added memory savings and speed increases.
318 - bumped $Coro::POOL_RSS up to 32kb by default.
319 - no longer set the optype to OP_CUSTOM, as B::* understandably
320 doesn't like this very much (and we *are* a type of entersub).
321 - implement state cloning, just to prove that call/cc can be done.
322 - automatically load Coro::AnyEvent in Coro::Handle.
323 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
324 do not have this method (and don't need it either).
325 - speed up generic anyevent methods in Coro::Handle by using rouse
326 callbacks.
327 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
328 others. It also makes the debugger happier, as you can trace
329 through the idle threads now.
330 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
331 - eg/event was pretty broken.
332 - better 5.8.6 compatibility.
333
3345.0 Thu Nov 20 10:35:05 CET 2008
335 - NEW ARCHITECTURE: use the latest 4.x version if you experience
336 stability issues.
337 - bump API version to 7 - all dependents must be recompiled.
338 - removed timed_* functions - they were not being used anyways
339 and should be replaced by a more generic mechanism -
340 and were annoying to support anyways :)
341 - removed SemaphoreSet's waiter method - use sem method instead.
342 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
343 - async_pool did free a scalar value twice
344 ("Attempt to unreference...").
345 - fix a longstanding bug where calling terminate on a coro that
346 was waiting for a semaphore that was just becoming available
347 would cause a deadlock (semaphore would get into a state where
348 it was available but waiters were still blocked).
349 - calling throw on a coroutine that is waiting for a semaphore will
350 no longer make it acquire the semaphore (and thus leak a count).
351 - perl's process emulation is now not even theoretically supported
352 anymore.
353 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
354 conversion of callback-style to blocking-style.
355 - new methods $coro->schedule_to and ->cede_to, to specifically
356 schedule or cede to a specific coroutine.
357 - new function Coro::Semaphore::wait.
358 - use named constants in Coro::Channel (Richard Hundt).
359 - directly patch the entersub opcode calling SLF functions (cede,
360 transfer and so on). this does speed up context switching, but
361 more importanly, it frees us from the hardcoded behaviour of
362 entersub, so we might actually be able to return something from
363 those functions and atcually create new ones.
364 - take advantage of __builtin_frame_address on gcc.
365 - expose THX in coroapi (not sure whether this was a wise decision,
366 as "threaded" perls are running at half speed anyways).
367 - implement execute_slf (schedule-like-function) interface that makes
368 it possible to implement schedule-like-functions in XS.
369 - use new SLF interface to massively speed up Coro::EV by roughly a
370 factor of two.
371 - used new SLF interface to massively speed up Coro::Semaphore by a
372 factor of three.
373 - used new SLF interface to speed up Coro::AIO by roughly a factor of
374 four and reduce its memory usage considerably.
375 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
376 for a nice speedup and vastly more correct behaviour. Also implement
377 a new method "sem" to get at the underlying semaphore object.
378 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
379 (in comparison) 20-40% speedup.
380 - used new SLF interface to reimplement Coro::Signal gaining
381 some unknown (because I was too lazy), but certain, speedup, and also
382 making signals reliable for the first time.
383 - used new SLF interface and other optimisations to speed up async_pool
384 by a factor of two. It also doesn't rely on perl's exception mechanism
385 to exit anymore. The overhead for terminating an async_pool, coro over
386 a normal async is now very small.
387 - sped up coroutine creation/destruction by 40%.
388 - forgot to include Coro/libcoro/README in the dist for all these years.
389 - work around a freebsd pthreads bug (manual testcancel is required as
390 pthread_cond_wait isn't a cancellation point on freebsd).
391 - use new rouse functions to speed up and simplify Coro::BDB.
392 - make "prefer perl native functions" work with threaded perls.
393 - condense Coro::Debug ps output, hint at v and w flags.
394 - (libcoro) lots of minor cleanups and portability improvements.
395
3964.914 Wed Nov 19 12:54:18 CET 2008
397 - fix a disastrous bug in the readline optimisation
398 introduced in 4.801.
399
4004.913 Sat Nov 15 07:58:28 CET 2008
401 - async_pool did free a scalar value twice
402 ("Attempt to unreference...").
403
4044.912 Thu Nov 13 18:31:23 CET 2008
405 - minor cleanups.
406 - use much larger stacks on linux and perl < 5.8.8.
407 - Coro::Debug::new_unix_server did not unlink the socket
408 when destroyed.
409
4104.911 Tue Nov 11 04:26:17 CET 2008
411 - "port" to threaded perls.
412
4134.91 Mon Nov 10 05:36:38 CET 2008
414 - the ->throw exception object no longer leaks.
415 - creating a new cctx leaked a scopestack entry (memleak).
416 - new coroutines didn't get created with a zero flags field
417 (unknown impact).
418 - calling ->throw on a not-yet-started coroutine should now work
419 instead of being ignored.
420 - ->throw is now supported on Coro::State objects.
421 - clean up cctx creation code a bit.
422 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
423
4244.9 Sat Nov 8 17:45:27 CET 2008
425 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
426 - (libcoro) no longer leak threads in the experimental pthread backend,
427 also speed it up considerably.
428 - (libcoro) do not rely on makecontext passing void *'s unscathed.
429 - fix compiletime dependencies on libcoro in the Makefile.
430 - cctx_count wasn't always updated properly.
431 - Coro::State::cctx_stacksize wasn't applied correctly.
432 - new function Coro::State::cctx_max_idle.
433 - the default max number of idle C contexts is now 4.
434 - (libcoro) try harder to get _setjmp/_longjmp.
435 - (libcoro) cleanup and extend the libcoro API to officially
436 allow the creation of empty source contexts.
437 - very experimental workaround for the totally broken netbsd platform.
438 - tried to hack around openbsd bugs.
439
4404.804 Wed Nov 5 16:36:00 CET 2008
441 - Coro::Debug::new_unix_server would not create a non-blocking listening
442 socket, sometimes causing freezes.
443 - (libcoro) fix misaligned stack points for setjmp and assembly
444 methods, which can cause crashes on x86/x86_64 with a sufficiently
445 aggressive compiler.
446 - new function: Coro::Debug::new_tcp_server.
447 - move ->throw into the Coro class because it only works on coro objects.
448
4494.803 Mon Nov 3 17:16:12 CET 2008
450 - (libcoro) use a global asm statement to become independent of gcc
451 otpimisations for CORO_ASM (thanks to pippijn for the idea).
452 - try to workaround yet another broken bsd, this time dragonfly.
453
4544.802 Thu Oct 30 10:56:12 CET 2008
455 - support -fno-omit-frame-pointer on x86 with the assembly method.
456 - tune 01_unblock.t tests a bit.
457
4584.801 Wed Oct 22 18:33:37 CEST 2008
459 - improve readline speed for very long "lines".
460 - backport to 5.8.8.
461
4624.8 Thu Oct 2 13:34:40 CEST 2008
463 - new function Coro::AIO::aio_wait.
464 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
465 - greatly speed up and reduce memory usage of Coro::AIO requests.
466 - implement some other µ-optimisations.
467
4684.749 Mon Sep 29 14:40:12 CEST 2008
469 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
470
4714.748 Sat Sep 27 14:03:19 CEST 2008
472 - implement, but do not document, PerlIO::cede(granularity).
473 - Coro::Storable forgot to wrap Storable::pstore.
474 - work around the multitude of leaks and memory corruption
475 bugs in PerlIO::via by using our own C-level perliol. As a side
476 effect, Coro::Storable is now much, much, much faster.
477
4784.747 Tue Sep 23 01:59:41 CEST 2008
479 - fix a per-cv memleak (one empty array was leaked per
480 code reference).
481 - avoid a crash in coro->call|rss when the coroutine was already
482 destroyed (most noticably when using Coro::Debug::ps :)
483 - also protect *Storable::FILE.
484 - push up default storable granularity to 20ms.
485
4864.746 Sun Sep 21 03:22:20 CEST 2008
487 - be more insistent on locking Storable against reentrancy
488 in Coro::Storable.
489 - move swap_def?v and throw to Coro::State, as documented.
490
4914.745 Thu Jul 24 00:14:38 CEST 2008
492 - remove debugging code related to MgPV_nolen_const, also try to
493 make it compile with perl 5.8.6 (yes, apple apparently loves
494 outdated software). Reported by John S.
495
4964.744 Tue Jul 8 22:06:35 CEST 2008
497 - correctly provide default DIE/WARN handlers as documented.
498 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
499 implementations inside perl work fine for us.
500
5014.743 Mon Jun 16 00:21:57 CEST 2008
502 - when using Coro::EV without running EV::loop it could
503 result in busy-waiting for events, this has been fixed.
504 - reduce codesize and improve performance by using EV_DEFAULT_UC.
505
5064.742 Sat May 31 14:10:21 CEST 2008
507 - implement a workaround for (some) perl <5.8.8 versions.
508 - require EV 3.3+.
509
5104.741 Fri May 30 23:33:09 CEST 2008
511 - tell netbsd how utterly broken their imitation of an OS is
512 and refuse to build by default if pthreads are in use.
513 - switch to "s" method on all bsd's by default, as their ucontext
514 stuff seems just too broken.
515 - fix a bug in Coro::Select.
516
5174.74 Thu May 29 20:05:31 CEST 2008
518 - do not test Coro::LWP for lack of dependencies.
519 - do not test Coro::Select for lack of working perls.
520
5214.73 Thu May 29 2008
522 - fix a bug in Coro::EV which would cause it to block despite
523 there being runnable coroutines.
524 - sprinkle "no warnings" freely over everything, also suppress
525 warnings for some other modules.
526 - fix typo in WSAEWOULDBLOCK.
527
5284.72 Sun May 25 05:14:36 CEST 2008
529 - tweak META.yaml a bit, unfortunately, there is no documented way
530 to have optional dependencies with CPAN. doh :(
531 - avoid running some tests on windows because they would fail due to
532 perl bug (broken fork, broken pipes...).
533 - work around perl on windows bugs where perl returns undocumented
534 error codes for sysread, syswrite etc. by taking advantage
535 of AnyEvent's workaround for that problem.
536 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
537 a common perl implementation bug on windows.
538 - use unix domain sockets in testsuite to work around
539 common perl implementation bugs on widows (they are emulated by
540 tcp sockets on windows. ugh.)
541
5424.71 Sat May 24 20:01:27 CEST 2008
543 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
544 - take advantage of async name resolution of AnyEvent::Util.
545 - work around brutal inet_aton override in Coro::LWP.
546 - take advantage of the readyhook in Coro::EV, for smoother
547 scheduling.
548
5494.7 Sun May 11 00:32:19 CEST 2008
550 - completely reworked the Coro manpage.
551 - added Coro::AnyEvent, generic event loop integration.
552 - implement cancel, ready and kill commands in Coro::Debug.
553 - document find_coro in Coro::Debug.
554 - incompatible change: rename has_stack to has_cctx.
555 - Coro::AIO and Coro::BDB no longer force event model detection,
556 use AnyEvent::AIO and AnyEvent::BDB.
557
5584.6 Sat Apr 26 10:05:14 CEST 2008
559 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
560 by the Coro module. It was a mistake to have it in the first place.
561 - (experimental) support for activestate perl 5.10 (method "w").
562 - (experimental) support for strawberry perl (method "a").
563 - coro_sigelem_set did not return a value although it had to,
564 actual impact unknown.
565
5664.51 Mon Apr 14 13:28:27 CEST 2008
567 - make it compile again on 5.8.
568
5694.50 Thu Apr 10 09:43:17 CEST 2008
570 - I did it twice! (see 4.49).
571
5724.49 Sun Apr 6 21:23:31 CEST 2008
573 - grr, instead of compiling the recent changes on 5.10 only they
574 were compiled on 5.8 only.
575
5764.48 Sun Apr 6 20:36:46 CEST 2008
577 - allow coroutine switches during eval's under 5.10.x, as it seems
578 the parser is a per-interpreter option now, so this is safe
579 (this might fix the odd crashing bug).
580 - drop support for 5.9.x versions: they are dead, jim.
581
5824.47 Sun Apr 6 00:37:52 CEST 2008
583 - force cctx allocation on API calls: we know we need to force one
584 and gcc actually manages to confuse our heuristic nowadays,
585 leading to crashes and worse.
586 - document force_cctx.
587
5884.46 Fri Apr 4 22:05:43 CEST 2008
589 - upgrade libcoro, resulting in pthread-backend (which was only created
590 to fulfill the rules of the programming languages shootout).
591
5924.45 Thu Mar 13 11:55:36 CET 2008
593 - fix a file leaking bug in eg/mhyttpd that would allow
594 downloading of any file (reported by oesi).
595 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
596 (also add testcase).
597 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
598 apparently having loads of fun with that).
599 - implement $state->swap_defsv, ->swap_defav and document ->throw.
600
6014.4 Wed Feb 13 16:44:29 CET 2008
602 - only assume .cfi pseudo isns exist on GNU/Linux.
603 - add get_timed method to Coro::Channels.
604 - fixed Coro::Debug manpage.
605 - perl 5.11 compatbility improvement based on patch by
606 Andreas König.
607
6084.37 Sun Jan 20 11:25:23 CET 2008
609 - soften the check for an active parser for perl 5.10 (avoiding
610 "Coro::State::transfer called while parsing" in many cases).
611
6124.36 Sun Jan 13 10:53:56 CET 2008
613 - reset diehook when terminating from an async_pool as to not
614 trigger any __DIE__ handlers.
615
6164.35 Sun Jan 13 04:14:13 CET 2008
617 - "bt" debug command now displays any exceptions
618 from longmess and also skips the innermost
619 stackframes, giving more useufl output.
620 - allow backtraces in coroutines blocked in Coro::EV,
621 at a <1% speed hit.
622 - handle localising of $SIG{__WARN__} and __DIE__
623 properly (with a proper amount of dirty hacking).
624
6254.34 Sat Dec 22 17:49:53 CET 2007
626 - upgrade to EV version 2.0 API.
627
6284.33 Mon Dec 17 08:36:12 CET 2007
629 - make Coro::AIO etc. loadable in the absence of EV.
630
6314.32 Mon Dec 17 07:46:02 CET 2007
632 - majorly improved Coro::Handle's performance with Coro::EV.
633 - implemented the until now mythical Coro::BDB module.
634 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
635
6364.31 Wed Dec 5 12:32:39 CET 2007
637 - remove warn statement form Coro::Util.
638
6394.3 Tue Dec 4 20:33:14 CET 2007
640 - calls to the idle function could cause stack corruption
641 when the stack changed.
642 - do no longer rely on the presence of EV::DNS if EV is used
643 (because it is gone), but instead take avdantage of EV::ADNS
644 if available.
645 - add ($) prototypes to all functions in Coro::Storable.
646 - use a conventional (safer) idle callback in Coro::EV.
647 - do accept quickly in Coro::Debug to avoid endless loops.
648
6494.22 Fri Nov 30 16:04:04 CET 2007
650 - really use optimised versions for Event and EV in Coro::Util
651 and Coro::Handle.
652
6534.21 Sun Nov 25 10:48:59 CET 2007
654 - fix a spurious memory read.
655 - Coro::EV no longer keeps the eventloop "alive".
656
6574.2 Fri Nov 9 20:47:05 CET 2007
658 - enable/disable tracing from a new coroutine, not a pooled one.
659 - fix a memleak in Coro::Event.
660 - removed killall call from fork_eval.
661 - made sure store_fd is already loaded so that fork_eval
662 does not have to parse autoload in each subprocess.
663 - only use assembly method if -O switch is in $Config{optimize}.
664 - add (optional) Coro::EV module, so far the best event loop module
665 directly supported by Coro.
666 - if the event model is EV, use EV::DNS to resolve
667 stuff in Coro::Util.
668 - don't get confused by multiple event notifications in Coro::Handle.
669 - initial support for EV (libevent interface).
670 - require Event and EV using configure_requires, to force their existance.
671
6724.13 Wed Oct 24 07:26:45 CEST 2007
673 - add Coro::Storable::blocking_thaw.
674 - use a vastly more complicated technique to localise
675 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
676 - use a coroutine for the idle callback Coro::Event,
677 instead of running Event in the current coroutine context.
678 This also catches recursive invocations.
679 - actually report fork errors in gethostbyname and inet_aton.
680
6814.11 Thu Oct 11 02:40:24 CEST 2007
682 - port to threaded perls.
683
6844.1 Thu Oct 11 02:38:16 CEST 2007
685 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
686 be local to each coro (see Coro::State).
687 - incompatible change: for very deep reasons, cede and cede_notself
688 cannot return anything, so nothing will be returned.
689 - possibly bring back 5.10 compatibility (untested).
690 - work around stupid (and wrong) warning on 5.10 :(.
691 - overlay the saved state over the context stack. This saves
692 a few hundred bytes per coroutine on average and also
693 speeds up context switching a bit.
694 - further tune default stack sizes.
695 - (more) correctly calculate stack usage in coro_rss.
696 - Coro::Storable::blocking_* did not properly lock
697 resulting in races between coroutines.
698 - added Coro::Storable::guard.
699 - stopping to trace a coroutine could destroy the cctx of
700 an unrelated coroutine.
701 - explain the relationship between Perl and C coroutines in
702 more detail in Coro::State.
703 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
704 causing a fork per resolve. This also affected Coro::Socket.
705 - switch to a separate stack in $coro->call/eval to avoid
706 invalidating pointers.
707
7084.03 Sat Oct 6 21:24:00 CEST 2007
709 - added Coro::throw method.
710 - minor code cleanups.
711
7124.02 Sat Oct 6 02:36:47 CEST 2007
713 - fix a very minor per-coroutine memleak (a single codereference).
714 - fixed a bug where the currently in-use c context would be freed
715 prematurely (can happen only when programs change the stacksize
716 or use tracing).
717 - tracing can no longer keep a coro alive after it terminated.
718 - do static branch prediction in the common path for gcc. gives
719 about 2-5% speed improvement here.
720
7214.01 Fri Oct 5 22:10:49 CEST 2007
722 - instead of recreating *a* standard output handle we simply
723 use STDOUT, which is faster and hopefully more robust.
724
7254.0 Fri Oct 5 12:56:00 CEST 2007
726 - incompatibly changed Coro::Storable::freeze.
727 - major new feature: added Coro::Debug, for interactive coroutine
728 debugging, tracing and much more.
729 - major bug fix: unbelievable, but true: $_, $/ and many other
730 "saved" variables actually weren't being saved. This has been fixed,
731 of course, while increasing performance while losing all the save
732 flags.
733 - save flags are gone, and all the api functions dealing with them.
734 - added Coro::Semaphore::adjust.
735 - added Coro::Util::fork_eval.
736 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
737 - added Coro::killall.
738 - reduce initial stack sizes to allow for "micro-coroutines".
739 - better async_pool resource management, moved parts of async_pool
740 handling to XS (major speed improvement).
741 - actually croak before modifying important data structures.
742 - refuse to transfer while compiling.
743 - possibly support eval EXPR better now.
744 - enable assembly per default on linux+bsd x86+amd64.
745 - all internal members were renamed _something for easier subclassing.
746 - many minor tweaks.
747
7483.63 Wed May 16 14:10:06 CEST 2007
749 - implement handcoded assembly for x86/amd64 SVR ABI.
750
7513.62 Fri Apr 27 21:36:06 CEST 2007
752 - upgrade libcoro (which might set unwind info correctly).
753 - change default on linux to setjmp/longjmp.
754
7553.61 Thu Apr 19 12:36:18 CEST 2007
756 - Coro::Storable caused an endless loop when thawing invalid
757 pst's sometimes.
758 - use a Semaphore in Coro::Storable, as Storable doesn't
759 seem to be reentrant (although it is documented to
760 be threadsafe...).
761 - fix Coro::Signal to bring back the original unreliable
762 but stateful semantics.
763 - fixed a lot of typos in Coro.pm (patch submitted by David
764 Steinbrunner, which applied flawlessly).
765
7663.6 Sat Apr 14 17:13:31 CEST 2007
6 - added some bugfixes to get eg/myhttpd working again. 767 - added some bugfixes to get eg/myhttpd working again.
768 - added Coro::Storable for often-cede'ing freeze/thaw.
769 - try to do a clean exit when a coroutine calls exit
770 (EXPERIMENTAL).
771 - got rid of indirect call through _coro_init.
772 - updated the partly antique examples in eg/ to
773 work again and be a bit less magic, too.
774 - fixed Coro::Signal semantics to work as documented again.
7 775
83.55 Sun Mar 25 01:20:47 CET 2007 7763.55 Sun Mar 25 01:20:47 CET 2007
9 - add SAVE_DEFFH to save the default filehandle and enable 777 - add SAVE_DEFFH to save the default filehandle and enable
10 it by default. 778 it by default.
11 - finally move socket-operations from Coro::Socket to Coro::Handle 779 - finally move socket-operations from Coro::Socket to Coro::Handle

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