ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/Coro/Changes
(Generate patch)

Comparing Coro/Changes (file contents):
Revision 1.110 by root, Tue Aug 30 21:32:17 2005 UTC vs.
Revision 1.602 by root, Wed Dec 5 00:14:22 2012 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2
3TODO: should explore PerlIO::coroaio (perl leaks like hell).
4TODO: channel->maxsize(newsize)?
5TODO: http://www.microsoft.com/msj/archive/s2ce.aspx
6TODO: __GCC_HAVE_DWARF2_CFI_ASM
7
8TODO: add peerhost/peerport from IO::Socket::INET etc.
9
10 - implement 5.17 compatibility by almost blindly applying a
11 good-looking patch by Father Chrysostomos.
12 - support magic values as timed_io_once args.
13 - recommend AnyEvent 7+ or EV 4+, also require EV
14 version 4 or newer for Coro::EV.
15
166.10 Tue Oct 9 01:14:27 CEST 2012
17 - updated ecb.h, it had a typo that caused it to not compile on many
18 big endian systems (reported by many people).
19 - disable memory fences in ecb.h to improve portability.
20
216.09 Sat Oct 6 23:25:02 CEST 2012
22 - Coro::EV I/O watchers were not interruptible by exceptions
23 (Coro::State::throw) (testcase by sten).
24 - ->throw now puts threads into the ready queue, as this seems to
25 be expected by existing code, and code that doesn't cope with spurious
26 wakeups needs fixing anyway.
27 - use fd -1 in mmap.
28 - cast I32 to int in error message printf.
29 - warn about broken so-called "hardened" kernels.
30
316.08 Fri Apr 13 12:05:47 CEST 2012
32 - be more aggressive about exiting like perl does - formerly,
33 exiting from the non-main thread would not execute END blocks.
34
356.07 Fri Nov 11 21:21:48 CET 2011
36 - work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV).
37 - update ecb.h.
38
396.06 Mon Aug 8 23:59:48 CEST 2011
40 - cygwin unfortunately patches the stack at runtime, so we use the pthreads
41 backend, which is an order of magnitude slower. unfortunately, cygwins
42 pthread implementation isn't very complete either, so allocate the stack
43 twice just to be sure.
44 (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS,
45 in its ithreaded perl - best recompile cygwin and use the 'w'indows
46 backend for much better performance. also disable ithreads for
47 even better performance...).
48
496.05 Thu Aug 4 21:36:36 CEST 2011
50 - blush, condvar values would not be propagated from send to recv anymore
51 (reported by Chip Salzenberg).
52 - use exponential increase for the readline buffer length in
53 Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes.
54
556.04 Wed Aug 3 17:15:45 CEST 2011
56 - use even more efficient and more compatible condvars for
57 compatibility to AnyEvent 6.x :)
58 - more inconsequential ecb.h updates.
59
606.03 Wed Aug 3 11:41:30 CEST 2011
61 - change how Coro patches AnyEvent condvars for compatibility to
62 AnyEvent 6.x.
63 - update ecb.h, to no longer include <pthread.h> in case WinNT.h
64 hasn't been included.
65
666.02 Wed Jul 13 04:35:19 CEST 2011
67 - "improve portability to Gentoo" - gentoo manages to put perl variables
68 in memory areas that are farther than 2gb apart, which the jit couldn't
69 handle and barfed. now it's just a bit slower on gentoo and similar
70 systems.
71
726.01 Sun Jul 3 12:31:14 CEST 2011
73 - workarounds are good, but the test for whether pthreads are used
74 was not good. thisone should be better.
75 - check differently whether gcc generates cfi instructions itself.
76
776.0 Wed Jun 29 19:43:35 CEST 2011
78 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
79 destroyed and cleaned up automatically (e.g. async { schedule }).
80 - implement a JIT compiler for part of the thread switch code,
81 which gives a 50% speed improvement on threaded perls, and
82 about 4% on non-thraeded perls (so threaded perls now finally
83 reach about half the speed of non-threaded perls).
84 - slightly modernise Coro::Intro, add section about rouse functions.
85 - avoid DEFSV and ERRSV, giving another 10% improvement
86 in thread switching.
87 - Coro::State->is_destroyed is now called is_zombie.
88 - implement a Coro->safe_cancel method that might fail, but
89 cancels in a "safer" way if it succeeds.
90 - add preliminary support for DEBUGGING perls.
91 - get rid of two hash-accesses when initialising a new Coro - this
92 speeds up coro creation by almost a factor of two.
93 - croak when a coro that is being cancelled tries to block
94 (e.g. while executing a guard block), instead of crashing or
95 deadlocking.
96 - use a more robust and also faster method to identify Coro::State
97 objects - speeds up everything a bit.
98 - implement Coro->cancel in XS for a 20% speed improvement, and to
99 be able to implement mutual cancellation.
100 - speed up context switches by a percent or two by more efficiently
101 allocating context stack entries.
102 - implement Coro->join and Coro->on_destroy in XS for a speedup and
103 a reduction in memory use.
104 - cancelling a coro while it itself is cancelling another coro is
105 now supported and working, instead of triggering an assertion.
106 - be a bit more crash-resistant when calling (buggy) on_destroy
107 callbacks (best effort).
108 - move on_destroy into the slf_frame, to allow extension slf
109 functions to have destructors.
110 - get rid if coro refcounting - simply crash in other interpreter
111 threads by nulling the pointers on clone.
112 - simplify warn/die hook handling when loading Coro - the convoluted
113 logic seems to be no longer neccessary.
114 - use libecb instead of our own home-grown gcc hacks.
115 - document alternatives to Coro::LWP. Please use them :)
116 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
117 sigaltstack. Really. wine suffers from it, erlang suffers from it,
118 and it's known since at least 2006.
119
1205.372 Wed Feb 23 06:14:30 CET 2011
121 - apparently mingw doesn't provide a working gettimeofday, try to
122 work around that by relying on Time::HiRes (indirectly brought to
123 my attention by Max Maischein).
124 - fix some portability issues when Time::HiRes was used.
125
1265.371 Mon Feb 21 14:36:08 CET 2011
127 - backport to windows process emulation code again.
128
1295.37 Sat Feb 19 07:49:44 CET 2011
130 - add a big "Coro thread life cycle" section to "man Coro".
131 - try a tentative workaround against the breakage that 5.13 has
132 introduced without depreciation period. sigh.
133 - no longer use Time::HiRes if gettimeofday is available, which
134 saves quite a lot of memory.
135
1365.36 Sun Feb 13 05:33:41 CET 2011
137 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
138 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
139 method call.
140 - undocument Coro::Timer::sleep and obsolete whole module.
141 - optimise Coro::Timer::timeout memory and cpu usage.
142 - slightly updated Coro::Intro for recent changes.
143 - do not initialise PL_dirty anymore.
144
1455.25 Thu Nov 11 01:08:39 CET 2010
146 - try a different approach on netbsd - netbsd 5 finally has marginally
147 working pthreads, but still broken ucontext/sigaltstack.
148 - openbsd 4.8 finally got their act together, Coro works out of the box
149 with asm, setjmp and pthreads (no change, just informational).
150
1515.24 Sat Oct 23 11:27:12 CEST 2010
152 - port to the EV 4.0 API.
153 - work around bugs in mingw32, making strawberry perl work
154 out of the box.
155 - correctly modify Coro::AIO function prototypes
156 so that they reflect the "no optional parameters" rule.
157 - "ported" libcoro to C++.
158
1595.23 Mon May 17 18:50:42 CEST 2010
160 - be more resistant to ordering changes when initialising
161 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
162 Waldorf).
163 - document that perl 5.12 deliberately removed support for cloning.
164
1655.22 Wed Apr 14 03:55:35 CEST 2010
166 - correctly return udnef on errors in Coro::Handle::read/write
167 (testcase by Marc Mims).
168 - convert Coro::Util into a "perl compatibility wrapper" - the functions
169 are less useful now, but are drop-in replacements for existing
170 functions, listing better alternatives in the documentation. This also
171 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
172 with Coro::Util::inet_aton.
173 - do not override $Coro::idle unconditionally in Coro.pm, as other
174 modules could have provided their own idle coro already
175 (for exmaple, Coro::AnyEvent).
176 - fix Coro::Util::gethost* functions.
177 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
178
1795.21 Wed Dec 16 07:19:51 CET 2009
180 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
181 together.
182 - add some examples on how to combine other event loops with Coro in
183 Coro::AnyEvent, and how to run it (and not to block). Seems to be
184 the most common source of confusion.
185 - try to catch people naively blocking in an event callback.
186 - work around the perl filehandle bug issue in conjunction with
187 older common::sense (as indirectly pointed out by ZSystem).
188 - clarify the "not from signal handlers" section.
189
1905.2 Sun Oct 4 14:54:24 CEST 2009
191 - Coro::Storable destroyed the prototypes of the functions it wrapped.
192 - export rouse_cb and rouse_wait by default now.
193 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
194 - new method $state->swap_sv.
195 - added section on "windows process emulation" to the manpage,
196 after a not-so-fruitful (nor-friendly) "discussion" with chip
197 salzenberg (discussion implies arguments, but his only arguments
198 were ad-hominems, one wonders why he started it in the first
199 place). I hope this explains it well enough for him to understand,
200 and maybe well enough for others to understand.
201 - use common::sense everywhere now.
202 - idle callbacks are no longer supported, use idle coros instead.
203 - print a thread listing when a deadlock is detected.
204
2055.17 Sat Aug 22 23:09:31 CEST 2009
206 - work around a bug in the perl debugger causing crashes
207 when running under the debugger by marking _pool_handler as nodebug.
208 - speed up Coro::async considerably.
209 - try some hacks to get netbsd to work "more often" - their broken
210 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
211 - convert Coro to AE 5.0 API.
212
2135.162 Tue Jul 28 04:04:03 CEST 2009
214 - perl 5.8.2 is now minimum requirement.
215 - skip t/19_handle.t on broken windows perls.
216
2175.161 Wed Jul 22 04:47:38 CEST 2009
218 - Coro::AnyEvent::poll could have a different prototype when EV was
219 used as backend (analyzed by Tatsuhiko Miyagawa).
220 - Coro::AnyEvent errornously initialised the event loop when loaded,
221 not on demand.
222 - try to workaround rare */t/01_unblock.t failures.
223
2245.16 Tue Jul 21 01:44:37 CEST 2009
225 - Coro::AnyEvent failed to hook into the event loop
226 when no threads had been readied between detecting
227 the event loop and actually running it.
228 - considerably speed up Coro::Select by taking avdantage
229 of AnyEvent > 4.8 and some other optimisations.
230 - implement paragraph readline mode in Coro::Handle
231 (based on patches by Zsbán Ambrus).
232 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
233 and analyzed by Yasuhiro MATSUMOTO).
234 - clarified libcoro license and copyright.
235 - someone stole my EXTRA_META!!!
236 - implement Coro::Select::patch_pp_sselect and it's brother,
237 for hardcode select overriding.
238
2395.151 Mon Jul 6 05:41:57 CEST 2009
240 - backport to windows process emulation code again (patch by
241 Yasuhiro MATSUMOTO).
242 - slightly update Coro::MakeMaker.
243
2445.15 Tue Jun 30 10:28:06 CEST 2009
245 - deprecate Coro::Socket, document how to get ipv6 support via
246 AnyEvent::Socket instead.
247 - implement signal->wait ($cb) interface, similar to semaphores.
248 - work around SvOK not supporting getmagic, so we have to getmagic
249 to test for undef :/ (reported by Matthias Waldorf).
250 - load Coro::AnyEvent in all modules using AnyEvent.
251 - work around perl corrupting our internal data structures,
252 reported by Tokuhiro Matsuno.
253 - enable per-coroutine real and cpu time gathering
254 (Coro::State::enable_times).
255
2565.14 Wed Jun 24 01:37:48 CEST 2009
257 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
258 as this seems to have been a difficult concept (poll, sleep, idle,
259 idle_upto).
260 - add Coro::AnyEvent::readable/writable functions.
261 - clarify Coro::EV/Event/AnyEvent manpages.
262 - free per-thread global scalars in the thread calling ->cancel, to
263 avoid crashes when $_, $@ etc., are magical but some of those
264 had already been freed.
265 - "unexperimentalise" the callback interface for Coro::Semaphore.
266 - speed up ready queue management/context switching by using a linked
267 list instead of an array (~5-10%).
268 - implement "watch" command in Coro::Debug shells.
269 - for fun, implement time-slicing as an example in the manpage.
270 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
271 Coro::Event, use the normal AnyEvent handling instead of dieing
272 (the same is true for Coro::Handle).
273 - properly document Coro::EV::timed_io_once.
274 - avoid unneccessary ->cancel calls in Coro::Handle.
275 - maybe make it work on mingw32 with win32 backend
276 (based on patch by Yasuhiro Matsumoto).
277
2785.132 Fri May 29 09:00:39 CEST 2009
279 - do not keep a reference to the argument itself in
280 Coro::Semaphore::guard, as it could change later.
281 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
282 should support a prepare callback.
283
2845.131 Mon Mar 16 23:20:37 CET 2009
285 - implement and document Coro->suspend, Coro->resume.
286 - fix Coro::Select implementation to not (often) close
287 the passed file descriptors (testcase provided by pippijn).
288
2895.13 Mon Dec 15 21:51:42 CET 2008
290 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
291 - don't set diehook to C<undef> but instead to NULL, to avoid
292 spurious warnings.
293 - fix a lot of bugs in Coro::SemaphoreSet.
294 - Coro::SemaphoreSet will less often create a semaphore needlessly.
295 - add Coro::SemaphoreSet::count and wait methods.
296 - take advantage of the new Guard module.
297 - deprecate Coro::guard.
298 - try to fix the dreaded 01_unblock tests once more. I hate it when
299 testsuites need more fixing than the code they are supposed to test.
300 - croak in more cases when a required callback isn't resolvable.
301 - fix some minor issues in Coro::State->call/eval.
302 - use current coroutine context instead of a temporary one
303 when temporarily switching to another coroutine.
304 - do not call C-level on_destroy handlers during global destruction,
305 to avoid needless segfaults.
306
3075.12 Sun Dec 7 13:30:38 CET 2008
308 - add default config for MirOS, which seems to be a bug-to-bug
309 compatible fork of openbsd ("world domination by releasing
310 openbsd cvs before the openbsd folks do it" or so :).
311 - free_padlist did destroy the names pad, not good, but didn't
312 seem to bother perl - this could fix issues such as eval ""
313 inside a function called from multiple coroutines.
314 - use a different method to detect destruction time.
315 - be more careful when freeing padlists just before global
316 destruction.
317 - fixed and expanded the call/cc example.
318 - renamed _terminate to _coro_run.
319 - new method Coro::Channel->shutdown.
320 - try pthreads on openbsd <4.4 (broken sigaltstack, will
321 pthreads fare better?).
322 - be less picky about destroying "a" running coroutine.
323
3245.11 Tue Nov 25 21:49:05 CET 2008
325 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
326 working code with failed assertions, introducing more bugs than
327 it fixes, requiring elaborate workarounds :(
328
3295.1 Mon Nov 24 08:54:59 CET 2008
330 - wrote a small introductory tutorial - Coro::Intro.
331 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
332 - Coro::Select did errornously dup the file descriptors
333 and didn't work with all AnyEvent backends.
334 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
335 LWP data transfers.
336 - disassociate c contexts from coro objects - this is agruably more
337 correct, but mostly allows sharing of cctxs between coro and state
338 objects, for added memory savings and speed increases.
339 - bumped $Coro::POOL_RSS up to 32kb by default.
340 - no longer set the optype to OP_CUSTOM, as B::* understandably
341 doesn't like this very much (and we *are* a type of entersub).
342 - implement state cloning, just to prove that call/cc can be done.
343 - automatically load Coro::AnyEvent in Coro::Handle.
344 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
345 do not have this method (and don't need it either).
346 - speed up generic anyevent methods in Coro::Handle by using rouse
347 callbacks.
348 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
349 others. It also makes the debugger happier, as you can trace
350 through the idle threads now.
351 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
352 - eg/event was pretty broken.
353 - better 5.8.6 compatibility.
354
3555.0 Thu Nov 20 10:35:05 CET 2008
356 - NEW ARCHITECTURE: use the latest 4.x version if you experience
357 stability issues.
358 - bump API version to 7 - all dependents must be recompiled.
359 - removed timed_* functions - they were not being used anyways
360 and should be replaced by a more generic mechanism -
361 and were annoying to support anyways :)
362 - removed SemaphoreSet's waiter method - use sem method instead.
363 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
364 - async_pool did free a scalar value twice
365 ("Attempt to unreference...").
366 - fix a longstanding bug where calling terminate on a coro that
367 was waiting for a semaphore that was just becoming available
368 would cause a deadlock (semaphore would get into a state where
369 it was available but waiters were still blocked).
370 - calling throw on a coroutine that is waiting for a semaphore will
371 no longer make it acquire the semaphore (and thus leak a count).
372 - perl's process emulation is now not even theoretically supported
373 anymore.
374 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
375 conversion of callback-style to blocking-style.
376 - new methods $coro->schedule_to and ->cede_to, to specifically
377 schedule or cede to a specific coroutine.
378 - new function Coro::Semaphore::wait.
379 - use named constants in Coro::Channel (Richard Hundt).
380 - directly patch the entersub opcode calling SLF functions (cede,
381 transfer and so on). this does speed up context switching, but
382 more importanly, it frees us from the hardcoded behaviour of
383 entersub, so we might actually be able to return something from
384 those functions and atcually create new ones.
385 - take advantage of __builtin_frame_address on gcc.
386 - expose THX in coroapi (not sure whether this was a wise decision,
387 as "threaded" perls are running at half speed anyways).
388 - implement execute_slf (schedule-like-function) interface that makes
389 it possible to implement schedule-like-functions in XS.
390 - use new SLF interface to massively speed up Coro::EV by roughly a
391 factor of two.
392 - used new SLF interface to massively speed up Coro::Semaphore by a
393 factor of three.
394 - used new SLF interface to speed up Coro::AIO by roughly a factor of
395 four and reduce its memory usage considerably.
396 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
397 for a nice speedup and vastly more correct behaviour. Also implement
398 a new method "sem" to get at the underlying semaphore object.
399 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
400 (in comparison) 20-40% speedup.
401 - used new SLF interface to reimplement Coro::Signal gaining
402 some unknown (because I was too lazy), but certain, speedup, and also
403 making signals reliable for the first time.
404 - used new SLF interface and other optimisations to speed up async_pool
405 by a factor of two. It also doesn't rely on perl's exception mechanism
406 to exit anymore. The overhead for terminating an async_pool, coro over
407 a normal async is now very small.
408 - sped up coroutine creation/destruction by 40%.
409 - forgot to include Coro/libcoro/README in the dist for all these years.
410 - work around a freebsd pthreads bug (manual testcancel is required as
411 pthread_cond_wait isn't a cancellation point on freebsd).
412 - use new rouse functions to speed up and simplify Coro::BDB.
413 - make "prefer perl native functions" work with threaded perls.
414 - condense Coro::Debug ps output, hint at v and w flags.
415 - (libcoro) lots of minor cleanups and portability improvements.
416
4174.914 Wed Nov 19 12:54:18 CET 2008
418 - fix a disastrous bug in the readline optimisation
419 introduced in 4.801.
420
4214.913 Sat Nov 15 07:58:28 CET 2008
422 - async_pool did free a scalar value twice
423 ("Attempt to unreference...").
424
4254.912 Thu Nov 13 18:31:23 CET 2008
426 - minor cleanups.
427 - use much larger stacks on linux and perl < 5.8.8.
428 - Coro::Debug::new_unix_server did not unlink the socket
429 when destroyed.
430
4314.911 Tue Nov 11 04:26:17 CET 2008
432 - "port" to threaded perls.
433
4344.91 Mon Nov 10 05:36:38 CET 2008
435 - the ->throw exception object no longer leaks.
436 - creating a new cctx leaked a scopestack entry (memleak).
437 - new coroutines didn't get created with a zero flags field
438 (unknown impact).
439 - calling ->throw on a not-yet-started coroutine should now work
440 instead of being ignored.
441 - ->throw is now supported on Coro::State objects.
442 - clean up cctx creation code a bit.
443 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
444
4454.9 Sat Nov 8 17:45:27 CET 2008
446 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
447 - (libcoro) no longer leak threads in the experimental pthread backend,
448 also speed it up considerably.
449 - (libcoro) do not rely on makecontext passing void *'s unscathed.
450 - fix compiletime dependencies on libcoro in the Makefile.
451 - cctx_count wasn't always updated properly.
452 - Coro::State::cctx_stacksize wasn't applied correctly.
453 - new function Coro::State::cctx_max_idle.
454 - the default max number of idle C contexts is now 4.
455 - (libcoro) try harder to get _setjmp/_longjmp.
456 - (libcoro) cleanup and extend the libcoro API to officially
457 allow the creation of empty source contexts.
458 - very experimental workaround for the totally broken netbsd platform.
459 - tried to hack around openbsd bugs.
460
4614.804 Wed Nov 5 16:36:00 CET 2008
462 - Coro::Debug::new_unix_server would not create a non-blocking listening
463 socket, sometimes causing freezes.
464 - (libcoro) fix misaligned stack points for setjmp and assembly
465 methods, which can cause crashes on x86/x86_64 with a sufficiently
466 aggressive compiler.
467 - new function: Coro::Debug::new_tcp_server.
468 - move ->throw into the Coro class because it only works on coro objects.
469
4704.803 Mon Nov 3 17:16:12 CET 2008
471 - (libcoro) use a global asm statement to become independent of gcc
472 otpimisations for CORO_ASM (thanks to pippijn for the idea).
473 - try to workaround yet another broken bsd, this time dragonfly.
474
4754.802 Thu Oct 30 10:56:12 CET 2008
476 - support -fno-omit-frame-pointer on x86 with the assembly method.
477 - tune 01_unblock.t tests a bit.
478
4794.801 Wed Oct 22 18:33:37 CEST 2008
480 - improve readline speed for very long "lines".
481 - backport to 5.8.8.
482
4834.8 Thu Oct 2 13:34:40 CEST 2008
484 - new function Coro::AIO::aio_wait.
485 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
486 - greatly speed up and reduce memory usage of Coro::AIO requests.
487 - implement some other µ-optimisations.
488
4894.749 Mon Sep 29 14:40:12 CEST 2008
490 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
491
4924.748 Sat Sep 27 14:03:19 CEST 2008
493 - implement, but do not document, PerlIO::cede(granularity).
494 - Coro::Storable forgot to wrap Storable::pstore.
495 - work around the multitude of leaks and memory corruption
496 bugs in PerlIO::via by using our own C-level perliol. As a side
497 effect, Coro::Storable is now much, much, much faster.
498
4994.747 Tue Sep 23 01:59:41 CEST 2008
500 - fix a per-cv memleak (one empty array was leaked per
501 code reference).
502 - avoid a crash in coro->call|rss when the coroutine was already
503 destroyed (most noticably when using Coro::Debug::ps :)
504 - also protect *Storable::FILE.
505 - push up default storable granularity to 20ms.
506
5074.746 Sun Sep 21 03:22:20 CEST 2008
508 - be more insistent on locking Storable against reentrancy
509 in Coro::Storable.
510 - move swap_def?v and throw to Coro::State, as documented.
511
5124.745 Thu Jul 24 00:14:38 CEST 2008
513 - remove debugging code related to MgPV_nolen_const, also try to
514 make it compile with perl 5.8.6 (yes, apple apparently loves
515 outdated software). Reported by John S.
516
5174.744 Tue Jul 8 22:06:35 CEST 2008
518 - correctly provide default DIE/WARN handlers as documented.
519 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
520 implementations inside perl work fine for us.
521
5224.743 Mon Jun 16 00:21:57 CEST 2008
523 - when using Coro::EV without running EV::loop it could
524 result in busy-waiting for events, this has been fixed.
525 - reduce codesize and improve performance by using EV_DEFAULT_UC.
526
5274.742 Sat May 31 14:10:21 CEST 2008
528 - implement a workaround for (some) perl <5.8.8 versions.
529 - require EV 3.3+.
530
5314.741 Fri May 30 23:33:09 CEST 2008
532 - tell netbsd how utterly broken their imitation of an OS is
533 and refuse to build by default if pthreads are in use.
534 - switch to "s" method on all bsd's by default, as their ucontext
535 stuff seems just too broken.
536 - fix a bug in Coro::Select.
537
5384.74 Thu May 29 20:05:31 CEST 2008
539 - do not test Coro::LWP for lack of dependencies.
540 - do not test Coro::Select for lack of working perls.
541
5424.73 Thu May 29 2008
543 - fix a bug in Coro::EV which would cause it to block despite
544 there being runnable coroutines.
545 - sprinkle "no warnings" freely over everything, also suppress
546 warnings for some other modules.
547 - fix typo in WSAEWOULDBLOCK.
548
5494.72 Sun May 25 05:14:36 CEST 2008
550 - tweak META.yaml a bit, unfortunately, there is no documented way
551 to have optional dependencies with CPAN. doh :(
552 - avoid running some tests on windows because they would fail due to
553 perl bug (broken fork, broken pipes...).
554 - work around perl on windows bugs where perl returns undocumented
555 error codes for sysread, syswrite etc. by taking advantage
556 of AnyEvent's workaround for that problem.
557 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
558 a common perl implementation bug on windows.
559 - use unix domain sockets in testsuite to work around
560 common perl implementation bugs on widows (they are emulated by
561 tcp sockets on windows. ugh.)
562
5634.71 Sat May 24 20:01:27 CEST 2008
564 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
565 - take advantage of async name resolution of AnyEvent::Util.
566 - work around brutal inet_aton override in Coro::LWP.
567 - take advantage of the readyhook in Coro::EV, for smoother
568 scheduling.
569
5704.7 Sun May 11 00:32:19 CEST 2008
571 - completely reworked the Coro manpage.
572 - added Coro::AnyEvent, generic event loop integration.
573 - implement cancel, ready and kill commands in Coro::Debug.
574 - document find_coro in Coro::Debug.
575 - incompatible change: rename has_stack to has_cctx.
576 - Coro::AIO and Coro::BDB no longer force event model detection,
577 use AnyEvent::AIO and AnyEvent::BDB.
578
5794.6 Sat Apr 26 10:05:14 CEST 2008
580 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
581 by the Coro module. It was a mistake to have it in the first place.
582 - (experimental) support for activestate perl 5.10 (method "w").
583 - (experimental) support for strawberry perl (method "a").
584 - coro_sigelem_set did not return a value although it had to,
585 actual impact unknown.
586
5874.51 Mon Apr 14 13:28:27 CEST 2008
588 - make it compile again on 5.8.
589
5904.50 Thu Apr 10 09:43:17 CEST 2008
591 - I did it twice! (see 4.49).
592
5934.49 Sun Apr 6 21:23:31 CEST 2008
594 - grr, instead of compiling the recent changes on 5.10 only they
595 were compiled on 5.8 only.
596
5974.48 Sun Apr 6 20:36:46 CEST 2008
598 - allow coroutine switches during eval's under 5.10.x, as it seems
599 the parser is a per-interpreter option now, so this is safe
600 (this might fix the odd crashing bug).
601 - drop support for 5.9.x versions: they are dead, jim.
602
6034.47 Sun Apr 6 00:37:52 CEST 2008
604 - force cctx allocation on API calls: we know we need to force one
605 and gcc actually manages to confuse our heuristic nowadays,
606 leading to crashes and worse.
607 - document force_cctx.
608
6094.46 Fri Apr 4 22:05:43 CEST 2008
610 - upgrade libcoro, resulting in pthread-backend (which was only created
611 to fulfill the rules of the programming languages shootout).
612
6134.45 Thu Mar 13 11:55:36 CET 2008
614 - fix a file leaking bug in eg/mhyttpd that would allow
615 downloading of any file (reported by oesi).
616 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
617 (also add testcase).
618 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
619 apparently having loads of fun with that).
620 - implement $state->swap_defsv, ->swap_defav and document ->throw.
621
6224.4 Wed Feb 13 16:44:29 CET 2008
623 - only assume .cfi pseudo isns exist on GNU/Linux.
624 - add get_timed method to Coro::Channels.
625 - fixed Coro::Debug manpage.
626 - perl 5.11 compatbility improvement based on patch by
627 Andreas König.
628
6294.37 Sun Jan 20 11:25:23 CET 2008
630 - soften the check for an active parser for perl 5.10 (avoiding
631 "Coro::State::transfer called while parsing" in many cases).
632
6334.36 Sun Jan 13 10:53:56 CET 2008
634 - reset diehook when terminating from an async_pool as to not
635 trigger any __DIE__ handlers.
636
6374.35 Sun Jan 13 04:14:13 CET 2008
638 - "bt" debug command now displays any exceptions
639 from longmess and also skips the innermost
640 stackframes, giving more useufl output.
641 - allow backtraces in coroutines blocked in Coro::EV,
642 at a <1% speed hit.
643 - handle localising of $SIG{__WARN__} and __DIE__
644 properly (with a proper amount of dirty hacking).
645
6464.34 Sat Dec 22 17:49:53 CET 2007
647 - upgrade to EV version 2.0 API.
648
6494.33 Mon Dec 17 08:36:12 CET 2007
650 - make Coro::AIO etc. loadable in the absence of EV.
651
6524.32 Mon Dec 17 07:46:02 CET 2007
653 - majorly improved Coro::Handle's performance with Coro::EV.
654 - implemented the until now mythical Coro::BDB module.
655 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
656
6574.31 Wed Dec 5 12:32:39 CET 2007
658 - remove warn statement form Coro::Util.
659
6604.3 Tue Dec 4 20:33:14 CET 2007
661 - calls to the idle function could cause stack corruption
662 when the stack changed.
663 - do no longer rely on the presence of EV::DNS if EV is used
664 (because it is gone), but instead take avdantage of EV::ADNS
665 if available.
666 - add ($) prototypes to all functions in Coro::Storable.
667 - use a conventional (safer) idle callback in Coro::EV.
668 - do accept quickly in Coro::Debug to avoid endless loops.
669
6704.22 Fri Nov 30 16:04:04 CET 2007
671 - really use optimised versions for Event and EV in Coro::Util
672 and Coro::Handle.
673
6744.21 Sun Nov 25 10:48:59 CET 2007
675 - fix a spurious memory read.
676 - Coro::EV no longer keeps the eventloop "alive".
677
6784.2 Fri Nov 9 20:47:05 CET 2007
679 - enable/disable tracing from a new coroutine, not a pooled one.
680 - fix a memleak in Coro::Event.
681 - removed killall call from fork_eval.
682 - made sure store_fd is already loaded so that fork_eval
683 does not have to parse autoload in each subprocess.
684 - only use assembly method if -O switch is in $Config{optimize}.
685 - add (optional) Coro::EV module, so far the best event loop module
686 directly supported by Coro.
687 - if the event model is EV, use EV::DNS to resolve
688 stuff in Coro::Util.
689 - don't get confused by multiple event notifications in Coro::Handle.
690 - initial support for EV (libevent interface).
691 - require Event and EV using configure_requires, to force their existance.
692
6934.13 Wed Oct 24 07:26:45 CEST 2007
694 - add Coro::Storable::blocking_thaw.
695 - use a vastly more complicated technique to localise
696 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
697 - use a coroutine for the idle callback Coro::Event,
698 instead of running Event in the current coroutine context.
699 This also catches recursive invocations.
700 - actually report fork errors in gethostbyname and inet_aton.
701
7024.11 Thu Oct 11 02:40:24 CEST 2007
703 - port to threaded perls.
704
7054.1 Thu Oct 11 02:38:16 CEST 2007
706 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
707 be local to each coro (see Coro::State).
708 - incompatible change: for very deep reasons, cede and cede_notself
709 cannot return anything, so nothing will be returned.
710 - possibly bring back 5.10 compatibility (untested).
711 - work around stupid (and wrong) warning on 5.10 :(.
712 - overlay the saved state over the context stack. This saves
713 a few hundred bytes per coroutine on average and also
714 speeds up context switching a bit.
715 - further tune default stack sizes.
716 - (more) correctly calculate stack usage in coro_rss.
717 - Coro::Storable::blocking_* did not properly lock
718 resulting in races between coroutines.
719 - added Coro::Storable::guard.
720 - stopping to trace a coroutine could destroy the cctx of
721 an unrelated coroutine.
722 - explain the relationship between Perl and C coroutines in
723 more detail in Coro::State.
724 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
725 causing a fork per resolve. This also affected Coro::Socket.
726 - switch to a separate stack in $coro->call/eval to avoid
727 invalidating pointers.
728
7294.03 Sat Oct 6 21:24:00 CEST 2007
730 - added Coro::throw method.
731 - minor code cleanups.
732
7334.02 Sat Oct 6 02:36:47 CEST 2007
734 - fix a very minor per-coroutine memleak (a single codereference).
735 - fixed a bug where the currently in-use c context would be freed
736 prematurely (can happen only when programs change the stacksize
737 or use tracing).
738 - tracing can no longer keep a coro alive after it terminated.
739 - do static branch prediction in the common path for gcc. gives
740 about 2-5% speed improvement here.
741
7424.01 Fri Oct 5 22:10:49 CEST 2007
743 - instead of recreating *a* standard output handle we simply
744 use STDOUT, which is faster and hopefully more robust.
745
7464.0 Fri Oct 5 12:56:00 CEST 2007
747 - incompatibly changed Coro::Storable::freeze.
748 - major new feature: added Coro::Debug, for interactive coroutine
749 debugging, tracing and much more.
750 - major bug fix: unbelievable, but true: $_, $/ and many other
751 "saved" variables actually weren't being saved. This has been fixed,
752 of course, while increasing performance while losing all the save
753 flags.
754 - save flags are gone, and all the api functions dealing with them.
755 - added Coro::Semaphore::adjust.
756 - added Coro::Util::fork_eval.
757 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
758 - added Coro::killall.
759 - reduce initial stack sizes to allow for "micro-coroutines".
760 - better async_pool resource management, moved parts of async_pool
761 handling to XS (major speed improvement).
762 - actually croak before modifying important data structures.
763 - refuse to transfer while compiling.
764 - possibly support eval EXPR better now.
765 - enable assembly per default on linux+bsd x86+amd64.
766 - all internal members were renamed _something for easier subclassing.
767 - many minor tweaks.
768
7693.63 Wed May 16 14:10:06 CEST 2007
770 - implement handcoded assembly for x86/amd64 SVR ABI.
771
7723.62 Fri Apr 27 21:36:06 CEST 2007
773 - upgrade libcoro (which might set unwind info correctly).
774 - change default on linux to setjmp/longjmp.
775
7763.61 Thu Apr 19 12:36:18 CEST 2007
777 - Coro::Storable caused an endless loop when thawing invalid
778 pst's sometimes.
779 - use a Semaphore in Coro::Storable, as Storable doesn't
780 seem to be reentrant (although it is documented to
781 be threadsafe...).
782 - fix Coro::Signal to bring back the original unreliable
783 but stateful semantics.
784 - fixed a lot of typos in Coro.pm (patch submitted by David
785 Steinbrunner, which applied flawlessly).
786
7873.6 Sat Apr 14 17:13:31 CEST 2007
788 - added some bugfixes to get eg/myhttpd working again.
789 - added Coro::Storable for often-cede'ing freeze/thaw.
790 - try to do a clean exit when a coroutine calls exit
791 (EXPERIMENTAL).
792 - got rid of indirect call through _coro_init.
793 - updated the partly antique examples in eg/ to
794 work again and be a bit less magic, too.
795 - fixed Coro::Signal semantics to work as documented again.
796
7973.55 Sun Mar 25 01:20:47 CET 2007
798 - add SAVE_DEFFH to save the default filehandle and enable
799 it by default.
800 - finally move socket-operations from Coro::Socket to Coro::Handle
801 to be able to unblock foreign sockets.
802 - add Coro::State::save_also and guarded_save.
803 - add count accessor to Coro::Semaphore.
804 - add Coro::State::cctx_stacksize.
805 - just for the fun of it, do not rely on implicit context,
806 which can dramatically improve performance, but people
807 using windows-process-emulation perls do not care much about
808 performance.
809
8103.51 Sun Mar 4 14:18:04 CET 2007
811 - fixed a problem when you weakened references to Coro::State's
812 (patch by Yuval Kogman).
813
8143.501 Wed Feb 28 12:44:07 CET 2007
815 - rename some global symbols as macosx from hell redefines
816 them without asking.
817
8183.5 Tue Feb 13 20:22:53 CET 2007
819 - do AnyEvent model detection earlier, avoiding problems
820 caused by first using AnyEvent and later Coro::Event.
821 - implement and document Coro::Event event objects.
822 - fix a potential problem in Coro::Event causing crashes.
823 - initialise PL_comppad when creating a new coroutine,
824 avoids crashes on early coro destruction.
825
8263.41 Mon Jan 22 19:19:49 CET 2007
827 - readline on Coro::Handle did not support undefined $/,
828 nor did it deliver partial lines on EOF or error.
829 - implement malloc fallback for stack allocation because
830 stupid broken idiotic OSX has a stupid broken
831 idiotic fits-the-whole-os mmap "implementation" and
832 my dick feels longer if Coro is portable even to
833 obsolete platforms.
834
8353.4 Fri Jan 19 21:52:54 CET 2007
836 - remove t/09_timer.t, as it isn't really testing much
837 but was rather flaky in practise.
838 - async_pool coro would keep arguments and callback alive until
839 it was reused.
840 - cancellation of a coroutine could cause spurious idle calls
841 in cede_notself.
842
8433.3 Sat Jan 6 03:45:00 CET 2007
844 - implement $coro->on_destroy.
845 - Coro::Event blocking semantics have been changed,
846 documented and - hopefully - improved.
847 - fix nice adding, not subtracting, from priority.
848 - fix ->prio and api_is_ready (patch by Mark Hinds).
849 - fixed an assert ("... == prev__cctx->idle_te")
850 that could errronously trigger.
851 - fix various large and small memleaks.
852 - use a (hopefully) more stable cancel implementation
853 that immediately frees the coroutine data.
854 - cede/cede_notself return a status now.
855 - added Coro::guard function.
856 - added a global coroutine pool for jobs (on my machine,
857 I can create and execute 48k simple coros/s with async,
858 and 128k coros with async_pool).
859 - Coro::AIO now uses the coroutine priority as io priority.
860
8613.2 Fri Dec 22 05:07:09 CET 2006
862 - improve portability to slightly older perls.
863 - use cleaner coroutine destruction.
864 - simplify configuration for users.
865 - optionally (unrecommended) prefer perl functions over
866 their coro replacements.
867
8683.11 Tue Dec 5 13:11:24 CET 2006
869 - fixed some bogus assert's, but as perl.h disables assert even
870 without NDEBUG (thank you very much), not too many people should
871 notice (that did include myself). Andreas König noticed, though :)
872 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
873 it. Also noticed by Andreas König :)
874 - save/restore tainted status.
875 - verified to pass the testsuite on my 5.9.5.
876
8773.1 Mon Dec 4 23:03:40 CET 2006
878 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
879 - incompatible change: transfer flags are now per-state.
880 - give a better error message on deadlock.
881 - document Coro::nready.
882 - enhanced testsuite.
883
8843.01 Sun Dec 3 23:47:42 CET 2006
885 - forgot to include Coro::Timer.
886
8873.0 Sun Dec 3 22:57:25 CET 2006
888 - the "FINALLY COMPLETELY STABLE" release (coming soon:
889 the "FAMOUS LAST WORDS" release).
890 - implement a new stack sharing algorithm, which uses a stack
891 pool (size currently hardcoded).
892 - make stack sharing mandatory (it no longer uses a heuristic).
893 - eval/die no longer cause weird problems under heavy use.
894 - Coro::Event could cause livelocks if it was used but
895 no Coro::Event watchers were used.
896 - Coro::Event now uses asynccheck as prepare does not
897 check for changed watchers.
898 - Coro::Event allows multiple waiting coros and will wake up one
899 per event.
900 - Coro::Event should be cleaner and more efficient now.
901 - new utility function Coro::unblock_sub.
902 - document the sad fact that Event is no longer reentrant.
903 - putting a coroutine into the ready queue twice could under
904 some circumstances lead to stack corruption.
905 - minor incompatibility: subclassing Coro::State is supported
906 directly now without going through a _coro_state member.
907 - state/coro switching is much faster now.
908 - very minor optimisations and code/documentation cleanup.
909 - avoid problems due to compiler inlining.
910 - removed timers from Coro::Timer -> use AnyEvent instead.
911 - replaced Coro::idle coroutine by (cleaner) idle handler.
912 - updated to newest libcoro.
913 - implement enhanced support for valgrind.
914 - implement is_ready and return value for ready.
915 - removed Coro::Cont, it was a misnomer (it's generators),
916 and it was somewhat annoying to get it right. Will come back
917 if somebody asks for it :)
918 - many ->wait methods and Coro::Event could return
919 spuriously without the event having happened.
920
9212.5 Tue Nov 7 12:22:33 CET 2006
922 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
923 use AnyEvent, moved them to Coro/.
924 - added Coro::LWP which contains all the uglyness required to
925 make LWP non-blocking.
926 - should work with perl 5.9.x now (Andreas König made me do it).
927 - fixed another bug in Coro::Select when the timeout was undef.
928 - reuse PL_start_env for all coros, saves some memory per coroutine.
929 - manage PL_top_env differently, hopefully to avoid panic: top_env.
930 - timeout argument was not properly used in Coro::Socket.
931 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
932 - emulate undocumented(!) functionality of IO::Socket required
933 by LWP(!!).
934 - updated eg/lwp to work with newer lwp's.
935 - remove "FATAL: uncaught exception" prefix. Coroutines that die
936 kill the whole process, just as exceptions in the main "coroutine"
937 did already.
938
9392.1 Wed Nov 1 23:01:13 CET 2006
940 - fix a long-standing bug in Coro::Select where select with
941 zero timeout would instead change the current default filehandle.
942 - use a simpler and hopefully more robust way to clone padlists
943 (uses less memory and a perl function instead of our own).
944 - coro can now create a stack guard area on many architectures.
945 - Coro::AIO properly reexports additional functions from IO::AIO.
946 - updated libcoro with a workaround for OS X,
947 pach and testing by Michael Schwern.
948
9492.0 Tue Oct 24 05:47:17 CEST 2006
950 - support additional aio requests in Coro::AIO.
951
9521.9 (never properly released due to a glitch)
953
9541.8 Thu Feb 2 00:59:06 CET 2006
955 - applied suggested patch by SAMV to avoid problems during stupid
956 mark & sweep gc run.
957 - applied patch by Scott Walters for 5.9.3 compatibility.
958
9591.7 Tue Dec 27 01:41:58 CET 2005
960 - added Coro::AIO, a thin wrapper around IO::AIO.
961 - improved Makefile.PL explanations.
962
9631.6 Mon Dec 12 21:30:05 CET 2005
964 - additionally save PM_curpm might fix as-of-yet
965 unseen problems with regex matches being attributed to the
966 wrong package.
967 - add t/10_bugs.t, which currently checks against imho broken
968 perls that use 0.26MB of stack space per Perl_magic_get
969 invocation (newer linuxes) as opposed to the 0.0002MB perl
970 normally uses.
971 - make stacksize configurable for the ultimate debian experience.
972
9731.51 Mon Dec 12 18:48:36 CET 2005
974 - remove debugging warn() accidentally left in Coro::Select.
975
9761.5 Tue Nov 29 13:32:44 CET 2005
977 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
978 - fix Coro::Select 'select'.
979 - strict'ify some modules.
980 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
981 - use XSLoader in selected modules.
982 - remove some 5.6 compatibility cruft.
983
9841.4 Tue Sep 6 00:11:05 CEST 2005
985 - libcoro did not take into account the trampoline on amd64,
986 when 'l'inux method was used.
2 987
31.31 Tue Aug 30 23:31:33 CEST 2005 9881.31 Tue Aug 30 23:31:33 CEST 2005
4 - some portability fixes/workarounds. 989 - some portability fixes/workarounds.
5 990
61.3 Sat Aug 20 03:08:56 CEST 2005 9911.3 Sat Aug 20 03:08:56 CEST 2005

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines