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Comparing Coro/Changes (file contents):
Revision 1.180 by root, Tue Dec 12 04:19:56 2006 UTC vs.
Revision 1.588 by root, Fri Nov 11 20:22:08 2011 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: better (earlier) error messages on broken transfer's 3TODO: should explore PerlIO::coroaio (perl leaks like hell).
4TODO: "internals mode" 4TODO: channel->maxsize(newsize)?
5TODO: http://www.microsoft.com/msj/archive/s2ce.aspx
5 6
76.07 Fri Nov 11 21:21:48 CET 2011
8 - work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV).
9 - update ecb.h.
10
116.06 Mon Aug 8 23:59:48 CEST 2011
12 - cygwin unfortunately patches the stack at runtime, so we use the pthreads
13 backend, which is an order of magnitude slower. unfortunately, cygwins
14 pthread implementation isn't very complete either, so allocate the stack
15 twice just to be sure.
16 (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS,
17 in its ithreaded perl - best recompile cygwin and use the 'w'indows
18 backend for much better performance. also disable ithreads for
19 even better performance...).
20
216.05 Thu Aug 4 21:36:36 CEST 2011
22 - blush, condvar values would not be propagated from send to recv anymore
23 (reported by Chip Salzenberg).
24 - use exponential increase for the readline buffer length in
25 Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes.
26
276.04 Wed Aug 3 17:15:45 CEST 2011
28 - use even more efficient and more compatible condvars for
29 compatibility to AnyEvent 6.x :)
30 - more inconsequential ecb.h updates.
31
326.03 Wed Aug 3 11:41:30 CEST 2011
33 - change how Coro patches AnyEvent condvars for compatibility to
34 AnyEvent 6.x.
35 - update ecb.h, to no longer include <pthread.h> in case WinNT.h
36 hasn't been included.
37
386.02 Wed Jul 13 04:35:19 CEST 2011
39 - "improve portability to Gentoo" - gentoo manages to put perl variables
40 in memory areas that are farther than 2gb apart, which the jit couldn't
41 handle and barfed. now it's just a bit slower on gentoo and similar
42 systems.
43
446.01 Sun Jul 3 12:31:14 CEST 2011
45 - workarounds are good, but the test for whether pthreads are used
46 was not good. thisone should be better.
47 - check differently whether gcc generates cfi instructions itself.
48
496.0 Wed Jun 29 19:43:35 CEST 2011
50 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
51 destroyed and cleaned up automatically (e.g. async { schedule }).
52 - implement a JIT compiler for part of the thread switch code,
53 which gives a 50% speed improvement on threaded perls, and
54 about 4% on non-thraeded perls (so threaded perls now finally
55 reach about half the speed of non-threaded perls).
56 - slightly modernise Coro::Intro, add section about rouse functions.
57 - avoid DEFSV and ERRSV, giving another 10% improvement
58 in thread switching.
59 - Coro::State->is_destroyed is now called is_zombie.
60 - implement a Coro->safe_cancel method that might fail, but
61 cancels in a "safer" way if it succeeds.
62 - add preliminary support for DEBUGGING perls.
63 - get rid of two hash-accesses when initialising a new Coro - this
64 speeds up coro creation by almost a factor of two.
65 - croak when a coro that is being cancelled tries to block
66 (e.g. while executing a guard block), instead of crashing or
67 deadlocking.
68 - use a more robust and also faster method to identify Coro::State
69 objects - speeds up everything a bit.
70 - implement Coro->cancel in XS for a 20% speed improvement, and to
71 be able to implement mutual cancellation.
72 - speed up context switches by a percent or two by more efficiently
73 allocating context stack entries.
74 - implement Coro->join and Coro->on_destroy in XS for a speedup and
75 a reduction in memory use.
76 - cancelling a coro while it itself is cancelling another coro is
77 now supported and working, instead of triggering an assertion.
78 - be a bit more crash-resistant when calling (buggy) on_destroy
79 callbacks (best effort).
80 - move on_destroy into the slf_frame, to allow extension slf
81 functions to have destructors.
82 - get rid if coro refcounting - simply crash in other interpreter
83 threads by nulling the pointers on clone.
84 - simplify warn/die hook handling when loading Coro - the convoluted
85 logic seems to be no longer neccessary.
86 - use libecb instead of our own home-grown gcc hacks.
87 - document alternatives to Coro::LWP. Please use them :)
88 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
89 sigaltstack. Really. wine suffers from it, erlang suffers from it,
90 and it's known since at least 2006.
91
925.372 Wed Feb 23 06:14:30 CET 2011
93 - apparently mingw doesn't provide a working gettimeofday, try to
94 work around that by relying on Time::HiRes (indirectly brought to
95 my attention by Max Maischein).
96 - fix some portability issues when Time::HiRes was used.
97
985.371 Mon Feb 21 14:36:08 CET 2011
99 - backport to windows process emulation code again.
100
1015.37 Sat Feb 19 07:49:44 CET 2011
102 - add a big "Coro thread life cycle" section to "man Coro".
103 - try a tentative workaround against the breakage that 5.13 has
104 introduced without depreciation period. sigh.
105 - no longer use Time::HiRes if gettimeofday is available, which
106 saves quite a lot of memory.
107
1085.36 Sun Feb 13 05:33:41 CET 2011
109 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
110 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
111 method call.
112 - undocument Coro::Timer::sleep and obsolete whole module.
113 - optimise Coro::Timer::timeout memory and cpu usage.
114 - slightly updated Coro::Intro for recent changes.
115 - do not initialise PL_dirty anymore.
116
1175.25 Thu Nov 11 01:08:39 CET 2010
118 - try a different approach on netbsd - netbsd 5 finally has marginally
119 working pthreads, but still broken ucontext/sigaltstack.
120 - openbsd 4.8 finally got their act together, Coro works out of the box
121 with asm, setjmp and pthreads (no change, just informational).
122
1235.24 Sat Oct 23 11:27:12 CEST 2010
124 - port to the EV 4.0 API.
125 - work around bugs in mingw32, making strawberry perl work
126 out of the box.
127 - correctly modify Coro::AIO function prototypes
128 so that they reflect the "no optional parameters" rule.
129 - "ported" libcoro to C++.
130
1315.23 Mon May 17 18:50:42 CEST 2010
132 - be more resistant to ordering changes when initialising
133 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
134 Waldorf).
135 - document that perl 5.12 deliberately removed support for cloning.
136
1375.22 Wed Apr 14 03:55:35 CEST 2010
138 - correctly return udnef on errors in Coro::Handle::read/write
139 (testcase by Marc Mims).
140 - convert Coro::Util into a "perl compatibility wrapper" - the functions
141 are less useful now, but are drop-in replacements for existing
142 functions, listing better alternatives in the documentation. This also
143 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
144 with Coro::Util::inet_aton.
145 - do not override $Coro::idle unconditionally in Coro.pm, as other
146 modules could have provided their own idle coro already
147 (for exmaple, Coro::AnyEvent).
148 - fix Coro::Util::gethost* functions.
149 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
150
1515.21 Wed Dec 16 07:19:51 CET 2009
152 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
153 together.
154 - add some examples on how to combine other event loops with Coro in
155 Coro::AnyEvent, and how to run it (and not to block). Seems to be
156 the most common source of confusion.
157 - try to catch people naively blocking in an event callback.
158 - work around the perl filehandle bug issue in conjunction with
159 older common::sense (as indirectly pointed out by ZSystem).
160 - clarify the "not from signal handlers" section.
161
1625.2 Sun Oct 4 14:54:24 CEST 2009
163 - Coro::Storable destroyed the prototypes of the functions it wrapped.
164 - export rouse_cb and rouse_wait by default now.
165 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
166 - new method $state->swap_sv.
167 - added section on "windows process emulation" to the manpage,
168 after a not-so-fruitful (nor-friendly) "discussion" with chip
169 salzenberg (discussion implies arguments, but his only arguments
170 were ad-hominems, one wonders why he started it in the first
171 place). I hope this explains it well enough for him to understand,
172 and maybe well enough for others to understand.
173 - use common::sense everywhere now.
174 - idle callbacks are no longer supported, use idle coros instead.
175 - print a thread listing when a deadlock is detected.
176
1775.17 Sat Aug 22 23:09:31 CEST 2009
178 - work around a bug in the perl debugger causing crashes
179 when running under the debugger by marking _pool_handler as nodebug.
180 - speed up Coro::async considerably.
181 - try some hacks to get netbsd to work "more often" - their broken
182 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
183 - convert Coro to AE 5.0 API.
184
1855.162 Tue Jul 28 04:04:03 CEST 2009
186 - perl 5.8.2 is now minimum requirement.
187 - skip t/19_handle.t on broken windows perls.
188
1895.161 Wed Jul 22 04:47:38 CEST 2009
190 - Coro::AnyEvent::poll could have a different prototype when EV was
191 used as backend (analyzed by Tatsuhiko Miyagawa).
192 - Coro::AnyEvent errornously initialised the event loop when loaded,
193 not on demand.
194 - try to workaround rare */t/01_unblock.t failures.
195
1965.16 Tue Jul 21 01:44:37 CEST 2009
197 - Coro::AnyEvent failed to hook into the event loop
198 when no threads had been readied between detecting
199 the event loop and actually running it.
200 - considerably speed up Coro::Select by taking avdantage
201 of AnyEvent > 4.8 and some other optimisations.
202 - implement paragraph readline mode in Coro::Handle
203 (based on patches by Zsbán Ambrus).
204 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
205 and analyzed by Yasuhiro MATSUMOTO).
206 - clarified libcoro license and copyright.
207 - someone stole my EXTRA_META!!!
208 - implement Coro::Select::patch_pp_sselect and it's brother,
209 for hardcode select overriding.
210
2115.151 Mon Jul 6 05:41:57 CEST 2009
212 - backport to windows process emulation code again (patch by
213 Yasuhiro MATSUMOTO).
214 - slightly update Coro::MakeMaker.
215
2165.15 Tue Jun 30 10:28:06 CEST 2009
217 - deprecate Coro::Socket, document how to get ipv6 support via
218 AnyEvent::Socket instead.
219 - implement signal->wait ($cb) interface, similar to semaphores.
220 - work around SvOK not supporting getmagic, so we have to getmagic
221 to test for undef :/ (reported by Matthias Waldorf).
222 - load Coro::AnyEvent in all modules using AnyEvent.
223 - work around perl corrupting our internal data structures,
224 reported by Tokuhiro Matsuno.
225 - enable per-coroutine real and cpu time gathering
226 (Coro::State::enable_times).
227
2285.14 Wed Jun 24 01:37:48 CEST 2009
229 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
230 as this seems to have been a difficult concept (poll, sleep, idle,
231 idle_upto).
232 - add Coro::AnyEvent::readable/writable functions.
233 - clarify Coro::EV/Event/AnyEvent manpages.
234 - free per-thread global scalars in the thread calling ->cancel, to
235 avoid crashes when $_, $@ etc., are magical but some of those
236 had already been freed.
237 - "unexperimentalise" the callback interface for Coro::Semaphore.
238 - speed up ready queue management/context switching by using a linked
239 list instead of an array (~5-10%).
240 - implement "watch" command in Coro::Debug shells.
241 - for fun, implement time-slicing as an example in the manpage.
242 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
243 Coro::Event, use the normal AnyEvent handling instead of dieing
244 (the same is true for Coro::Handle).
245 - properly document Coro::EV::timed_io_once.
246 - avoid unneccessary ->cancel calls in Coro::Handle.
247 - maybe make it work on mingw32 with win32 backend
248 (based on patch by Yasuhiro Matsumoto).
249
2505.132 Fri May 29 09:00:39 CEST 2009
251 - do not keep a reference to the argument itself in
252 Coro::Semaphore::guard, as it could change later.
253 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
254 should support a prepare callback.
255
2565.131 Mon Mar 16 23:20:37 CET 2009
257 - implement and document Coro->suspend, Coro->resume.
258 - fix Coro::Select implementation to not (often) close
259 the passed file descriptors (testcase provided by pippijn).
260
2615.13 Mon Dec 15 21:51:42 CET 2008
262 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
263 - don't set diehook to C<undef> but instead to NULL, to avoid
264 spurious warnings.
265 - fix a lot of bugs in Coro::SemaphoreSet.
266 - Coro::SemaphoreSet will less often create a semaphore needlessly.
267 - add Coro::SemaphoreSet::count and wait methods.
268 - take advantage of the new Guard module.
269 - deprecate Coro::guard.
270 - try to fix the dreaded 01_unblock tests once more. I hate it when
271 testsuites need more fixing than the code they are supposed to test.
272 - croak in more cases when a required callback isn't resolvable.
273 - fix some minor issues in Coro::State->call/eval.
274 - use current coroutine context instead of a temporary one
275 when temporarily switching to another coroutine.
276 - do not call C-level on_destroy handlers during global destruction,
277 to avoid needless segfaults.
278
2795.12 Sun Dec 7 13:30:38 CET 2008
280 - add default config for MirOS, which seems to be a bug-to-bug
281 compatible fork of openbsd ("world domination by releasing
282 openbsd cvs before the openbsd folks do it" or so :).
283 - free_padlist did destroy the names pad, not good, but didn't
284 seem to bother perl - this could fix issues such as eval ""
285 inside a function called from multiple coroutines.
286 - use a different method to detect destruction time.
287 - be more careful when freeing padlists just before global
288 destruction.
289 - fixed and expanded the call/cc example.
290 - renamed _terminate to _coro_run.
291 - new method Coro::Channel->shutdown.
292 - try pthreads on openbsd <4.4 (broken sigaltstack, will
293 pthreads fare better?).
294 - be less picky about destroying "a" running coroutine.
295
2965.11 Tue Nov 25 21:49:05 CET 2008
297 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
298 working code with failed assertions, introducing more bugs than
299 it fixes, requiring elaborate workarounds :(
300
3015.1 Mon Nov 24 08:54:59 CET 2008
302 - wrote a small introductory tutorial - Coro::Intro.
303 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
304 - Coro::Select did errornously dup the file descriptors
305 and didn't work with all AnyEvent backends.
306 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
307 LWP data transfers.
308 - disassociate c contexts from coro objects - this is agruably more
309 correct, but mostly allows sharing of cctxs between coro and state
310 objects, for added memory savings and speed increases.
311 - bumped $Coro::POOL_RSS up to 32kb by default.
312 - no longer set the optype to OP_CUSTOM, as B::* understandably
313 doesn't like this very much (and we *are* a type of entersub).
314 - implement state cloning, just to prove that call/cc can be done.
315 - automatically load Coro::AnyEvent in Coro::Handle.
316 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
317 do not have this method (and don't need it either).
318 - speed up generic anyevent methods in Coro::Handle by using rouse
319 callbacks.
320 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
321 others. It also makes the debugger happier, as you can trace
322 through the idle threads now.
323 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
324 - eg/event was pretty broken.
325 - better 5.8.6 compatibility.
326
3275.0 Thu Nov 20 10:35:05 CET 2008
328 - NEW ARCHITECTURE: use the latest 4.x version if you experience
329 stability issues.
330 - bump API version to 7 - all dependents must be recompiled.
331 - removed timed_* functions - they were not being used anyways
332 and should be replaced by a more generic mechanism -
333 and were annoying to support anyways :)
334 - removed SemaphoreSet's waiter method - use sem method instead.
335 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
336 - async_pool did free a scalar value twice
337 ("Attempt to unreference...").
338 - fix a longstanding bug where calling terminate on a coro that
339 was waiting for a semaphore that was just becoming available
340 would cause a deadlock (semaphore would get into a state where
341 it was available but waiters were still blocked).
342 - calling throw on a coroutine that is waiting for a semaphore will
343 no longer make it acquire the semaphore (and thus leak a count).
344 - perl's process emulation is now not even theoretically supported
345 anymore.
346 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
347 conversion of callback-style to blocking-style.
348 - new methods $coro->schedule_to and ->cede_to, to specifically
349 schedule or cede to a specific coroutine.
350 - new function Coro::Semaphore::wait.
351 - use named constants in Coro::Channel (Richard Hundt).
352 - directly patch the entersub opcode calling SLF functions (cede,
353 transfer and so on). this does speed up context switching, but
354 more importanly, it frees us from the hardcoded behaviour of
355 entersub, so we might actually be able to return something from
356 those functions and atcually create new ones.
357 - take advantage of __builtin_frame_address on gcc.
358 - expose THX in coroapi (not sure whether this was a wise decision,
359 as "threaded" perls are running at half speed anyways).
360 - implement execute_slf (schedule-like-function) interface that makes
361 it possible to implement schedule-like-functions in XS.
362 - use new SLF interface to massively speed up Coro::EV by roughly a
363 factor of two.
364 - used new SLF interface to massively speed up Coro::Semaphore by a
365 factor of three.
366 - used new SLF interface to speed up Coro::AIO by roughly a factor of
367 four and reduce its memory usage considerably.
368 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
369 for a nice speedup and vastly more correct behaviour. Also implement
370 a new method "sem" to get at the underlying semaphore object.
371 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
372 (in comparison) 20-40% speedup.
373 - used new SLF interface to reimplement Coro::Signal gaining
374 some unknown (because I was too lazy), but certain, speedup, and also
375 making signals reliable for the first time.
376 - used new SLF interface and other optimisations to speed up async_pool
377 by a factor of two. It also doesn't rely on perl's exception mechanism
378 to exit anymore. The overhead for terminating an async_pool, coro over
379 a normal async is now very small.
380 - sped up coroutine creation/destruction by 40%.
381 - forgot to include Coro/libcoro/README in the dist for all these years.
382 - work around a freebsd pthreads bug (manual testcancel is required as
383 pthread_cond_wait isn't a cancellation point on freebsd).
384 - use new rouse functions to speed up and simplify Coro::BDB.
385 - make "prefer perl native functions" work with threaded perls.
386 - condense Coro::Debug ps output, hint at v and w flags.
387 - (libcoro) lots of minor cleanups and portability improvements.
388
3894.914 Wed Nov 19 12:54:18 CET 2008
390 - fix a disastrous bug in the readline optimisation
391 introduced in 4.801.
392
3934.913 Sat Nov 15 07:58:28 CET 2008
394 - async_pool did free a scalar value twice
395 ("Attempt to unreference...").
396
3974.912 Thu Nov 13 18:31:23 CET 2008
398 - minor cleanups.
399 - use much larger stacks on linux and perl < 5.8.8.
400 - Coro::Debug::new_unix_server did not unlink the socket
401 when destroyed.
402
4034.911 Tue Nov 11 04:26:17 CET 2008
404 - "port" to threaded perls.
405
4064.91 Mon Nov 10 05:36:38 CET 2008
407 - the ->throw exception object no longer leaks.
408 - creating a new cctx leaked a scopestack entry (memleak).
409 - new coroutines didn't get created with a zero flags field
410 (unknown impact).
411 - calling ->throw on a not-yet-started coroutine should now work
412 instead of being ignored.
413 - ->throw is now supported on Coro::State objects.
414 - clean up cctx creation code a bit.
415 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
416
4174.9 Sat Nov 8 17:45:27 CET 2008
418 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
419 - (libcoro) no longer leak threads in the experimental pthread backend,
420 also speed it up considerably.
421 - (libcoro) do not rely on makecontext passing void *'s unscathed.
422 - fix compiletime dependencies on libcoro in the Makefile.
423 - cctx_count wasn't always updated properly.
424 - Coro::State::cctx_stacksize wasn't applied correctly.
425 - new function Coro::State::cctx_max_idle.
426 - the default max number of idle C contexts is now 4.
427 - (libcoro) try harder to get _setjmp/_longjmp.
428 - (libcoro) cleanup and extend the libcoro API to officially
429 allow the creation of empty source contexts.
430 - very experimental workaround for the totally broken netbsd platform.
431 - tried to hack around openbsd bugs.
432
4334.804 Wed Nov 5 16:36:00 CET 2008
434 - Coro::Debug::new_unix_server would not create a non-blocking listening
435 socket, sometimes causing freezes.
436 - (libcoro) fix misaligned stack points for setjmp and assembly
437 methods, which can cause crashes on x86/x86_64 with a sufficiently
438 aggressive compiler.
439 - new function: Coro::Debug::new_tcp_server.
440 - move ->throw into the Coro class because it only works on coro objects.
441
4424.803 Mon Nov 3 17:16:12 CET 2008
443 - (libcoro) use a global asm statement to become independent of gcc
444 otpimisations for CORO_ASM (thanks to pippijn for the idea).
445 - try to workaround yet another broken bsd, this time dragonfly.
446
4474.802 Thu Oct 30 10:56:12 CET 2008
448 - support -fno-omit-frame-pointer on x86 with the assembly method.
449 - tune 01_unblock.t tests a bit.
450
4514.801 Wed Oct 22 18:33:37 CEST 2008
452 - improve readline speed for very long "lines".
453 - backport to 5.8.8.
454
4554.8 Thu Oct 2 13:34:40 CEST 2008
456 - new function Coro::AIO::aio_wait.
457 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
458 - greatly speed up and reduce memory usage of Coro::AIO requests.
459 - implement some other µ-optimisations.
460
4614.749 Mon Sep 29 14:40:12 CEST 2008
462 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
463
4644.748 Sat Sep 27 14:03:19 CEST 2008
465 - implement, but do not document, PerlIO::cede(granularity).
466 - Coro::Storable forgot to wrap Storable::pstore.
467 - work around the multitude of leaks and memory corruption
468 bugs in PerlIO::via by using our own C-level perliol. As a side
469 effect, Coro::Storable is now much, much, much faster.
470
4714.747 Tue Sep 23 01:59:41 CEST 2008
472 - fix a per-cv memleak (one empty array was leaked per
473 code reference).
474 - avoid a crash in coro->call|rss when the coroutine was already
475 destroyed (most noticably when using Coro::Debug::ps :)
476 - also protect *Storable::FILE.
477 - push up default storable granularity to 20ms.
478
4794.746 Sun Sep 21 03:22:20 CEST 2008
480 - be more insistent on locking Storable against reentrancy
481 in Coro::Storable.
482 - move swap_def?v and throw to Coro::State, as documented.
483
4844.745 Thu Jul 24 00:14:38 CEST 2008
485 - remove debugging code related to MgPV_nolen_const, also try to
486 make it compile with perl 5.8.6 (yes, apple apparently loves
487 outdated software). Reported by John S.
488
4894.744 Tue Jul 8 22:06:35 CEST 2008
490 - correctly provide default DIE/WARN handlers as documented.
491 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
492 implementations inside perl work fine for us.
493
4944.743 Mon Jun 16 00:21:57 CEST 2008
495 - when using Coro::EV without running EV::loop it could
496 result in busy-waiting for events, this has been fixed.
497 - reduce codesize and improve performance by using EV_DEFAULT_UC.
498
4994.742 Sat May 31 14:10:21 CEST 2008
500 - implement a workaround for (some) perl <5.8.8 versions.
501 - require EV 3.3+.
502
5034.741 Fri May 30 23:33:09 CEST 2008
504 - tell netbsd how utterly broken their imitation of an OS is
505 and refuse to build by default if pthreads are in use.
506 - switch to "s" method on all bsd's by default, as their ucontext
507 stuff seems just too broken.
508 - fix a bug in Coro::Select.
509
5104.74 Thu May 29 20:05:31 CEST 2008
511 - do not test Coro::LWP for lack of dependencies.
512 - do not test Coro::Select for lack of working perls.
513
5144.73 Thu May 29 2008
515 - fix a bug in Coro::EV which would cause it to block despite
516 there being runnable coroutines.
517 - sprinkle "no warnings" freely over everything, also suppress
518 warnings for some other modules.
519 - fix typo in WSAEWOULDBLOCK.
520
5214.72 Sun May 25 05:14:36 CEST 2008
522 - tweak META.yaml a bit, unfortunately, there is no documented way
523 to have optional dependencies with CPAN. doh :(
524 - avoid running some tests on windows because they would fail due to
525 perl bug (broken fork, broken pipes...).
526 - work around perl on windows bugs where perl returns undocumented
527 error codes for sysread, syswrite etc. by taking advantage
528 of AnyEvent's workaround for that problem.
529 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
530 a common perl implementation bug on windows.
531 - use unix domain sockets in testsuite to work around
532 common perl implementation bugs on widows (they are emulated by
533 tcp sockets on windows. ugh.)
534
5354.71 Sat May 24 20:01:27 CEST 2008
536 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
537 - take advantage of async name resolution of AnyEvent::Util.
538 - work around brutal inet_aton override in Coro::LWP.
539 - take advantage of the readyhook in Coro::EV, for smoother
540 scheduling.
541
5424.7 Sun May 11 00:32:19 CEST 2008
543 - completely reworked the Coro manpage.
544 - added Coro::AnyEvent, generic event loop integration.
545 - implement cancel, ready and kill commands in Coro::Debug.
546 - document find_coro in Coro::Debug.
547 - incompatible change: rename has_stack to has_cctx.
548 - Coro::AIO and Coro::BDB no longer force event model detection,
549 use AnyEvent::AIO and AnyEvent::BDB.
550
5514.6 Sat Apr 26 10:05:14 CEST 2008
552 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
553 by the Coro module. It was a mistake to have it in the first place.
554 - (experimental) support for activestate perl 5.10 (method "w").
555 - (experimental) support for strawberry perl (method "a").
556 - coro_sigelem_set did not return a value although it had to,
557 actual impact unknown.
558
5594.51 Mon Apr 14 13:28:27 CEST 2008
560 - make it compile again on 5.8.
561
5624.50 Thu Apr 10 09:43:17 CEST 2008
563 - I did it twice! (see 4.49).
564
5654.49 Sun Apr 6 21:23:31 CEST 2008
566 - grr, instead of compiling the recent changes on 5.10 only they
567 were compiled on 5.8 only.
568
5694.48 Sun Apr 6 20:36:46 CEST 2008
570 - allow coroutine switches during eval's under 5.10.x, as it seems
571 the parser is a per-interpreter option now, so this is safe
572 (this might fix the odd crashing bug).
573 - drop support for 5.9.x versions: they are dead, jim.
574
5754.47 Sun Apr 6 00:37:52 CEST 2008
576 - force cctx allocation on API calls: we know we need to force one
577 and gcc actually manages to confuse our heuristic nowadays,
578 leading to crashes and worse.
579 - document force_cctx.
580
5814.46 Fri Apr 4 22:05:43 CEST 2008
582 - upgrade libcoro, resulting in pthread-backend (which was only created
583 to fulfill the rules of the programming languages shootout).
584
5854.45 Thu Mar 13 11:55:36 CET 2008
586 - fix a file leaking bug in eg/mhyttpd that would allow
587 downloading of any file (reported by oesi).
588 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
589 (also add testcase).
590 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
591 apparently having loads of fun with that).
592 - implement $state->swap_defsv, ->swap_defav and document ->throw.
593
5944.4 Wed Feb 13 16:44:29 CET 2008
595 - only assume .cfi pseudo isns exist on GNU/Linux.
596 - add get_timed method to Coro::Channels.
597 - fixed Coro::Debug manpage.
598 - perl 5.11 compatbility improvement based on patch by
599 Andreas König.
600
6014.37 Sun Jan 20 11:25:23 CET 2008
602 - soften the check for an active parser for perl 5.10 (avoiding
603 "Coro::State::transfer called while parsing" in many cases).
604
6054.36 Sun Jan 13 10:53:56 CET 2008
606 - reset diehook when terminating from an async_pool as to not
607 trigger any __DIE__ handlers.
608
6094.35 Sun Jan 13 04:14:13 CET 2008
610 - "bt" debug command now displays any exceptions
611 from longmess and also skips the innermost
612 stackframes, giving more useufl output.
613 - allow backtraces in coroutines blocked in Coro::EV,
614 at a <1% speed hit.
615 - handle localising of $SIG{__WARN__} and __DIE__
616 properly (with a proper amount of dirty hacking).
617
6184.34 Sat Dec 22 17:49:53 CET 2007
619 - upgrade to EV version 2.0 API.
620
6214.33 Mon Dec 17 08:36:12 CET 2007
622 - make Coro::AIO etc. loadable in the absence of EV.
623
6244.32 Mon Dec 17 07:46:02 CET 2007
625 - majorly improved Coro::Handle's performance with Coro::EV.
626 - implemented the until now mythical Coro::BDB module.
627 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
628
6294.31 Wed Dec 5 12:32:39 CET 2007
630 - remove warn statement form Coro::Util.
631
6324.3 Tue Dec 4 20:33:14 CET 2007
633 - calls to the idle function could cause stack corruption
634 when the stack changed.
635 - do no longer rely on the presence of EV::DNS if EV is used
636 (because it is gone), but instead take avdantage of EV::ADNS
637 if available.
638 - add ($) prototypes to all functions in Coro::Storable.
639 - use a conventional (safer) idle callback in Coro::EV.
640 - do accept quickly in Coro::Debug to avoid endless loops.
641
6424.22 Fri Nov 30 16:04:04 CET 2007
643 - really use optimised versions for Event and EV in Coro::Util
644 and Coro::Handle.
645
6464.21 Sun Nov 25 10:48:59 CET 2007
647 - fix a spurious memory read.
648 - Coro::EV no longer keeps the eventloop "alive".
649
6504.2 Fri Nov 9 20:47:05 CET 2007
651 - enable/disable tracing from a new coroutine, not a pooled one.
652 - fix a memleak in Coro::Event.
653 - removed killall call from fork_eval.
654 - made sure store_fd is already loaded so that fork_eval
655 does not have to parse autoload in each subprocess.
656 - only use assembly method if -O switch is in $Config{optimize}.
657 - add (optional) Coro::EV module, so far the best event loop module
658 directly supported by Coro.
659 - if the event model is EV, use EV::DNS to resolve
660 stuff in Coro::Util.
661 - don't get confused by multiple event notifications in Coro::Handle.
662 - initial support for EV (libevent interface).
663 - require Event and EV using configure_requires, to force their existance.
664
6654.13 Wed Oct 24 07:26:45 CEST 2007
666 - add Coro::Storable::blocking_thaw.
667 - use a vastly more complicated technique to localise
668 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
669 - use a coroutine for the idle callback Coro::Event,
670 instead of running Event in the current coroutine context.
671 This also catches recursive invocations.
672 - actually report fork errors in gethostbyname and inet_aton.
673
6744.11 Thu Oct 11 02:40:24 CEST 2007
675 - port to threaded perls.
676
6774.1 Thu Oct 11 02:38:16 CEST 2007
678 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
679 be local to each coro (see Coro::State).
680 - incompatible change: for very deep reasons, cede and cede_notself
681 cannot return anything, so nothing will be returned.
682 - possibly bring back 5.10 compatibility (untested).
683 - work around stupid (and wrong) warning on 5.10 :(.
684 - overlay the saved state over the context stack. This saves
685 a few hundred bytes per coroutine on average and also
686 speeds up context switching a bit.
687 - further tune default stack sizes.
688 - (more) correctly calculate stack usage in coro_rss.
689 - Coro::Storable::blocking_* did not properly lock
690 resulting in races between coroutines.
691 - added Coro::Storable::guard.
692 - stopping to trace a coroutine could destroy the cctx of
693 an unrelated coroutine.
694 - explain the relationship between Perl and C coroutines in
695 more detail in Coro::State.
696 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
697 causing a fork per resolve. This also affected Coro::Socket.
698 - switch to a separate stack in $coro->call/eval to avoid
699 invalidating pointers.
700
7014.03 Sat Oct 6 21:24:00 CEST 2007
702 - added Coro::throw method.
703 - minor code cleanups.
704
7054.02 Sat Oct 6 02:36:47 CEST 2007
706 - fix a very minor per-coroutine memleak (a single codereference).
707 - fixed a bug where the currently in-use c context would be freed
708 prematurely (can happen only when programs change the stacksize
709 or use tracing).
710 - tracing can no longer keep a coro alive after it terminated.
711 - do static branch prediction in the common path for gcc. gives
712 about 2-5% speed improvement here.
713
7144.01 Fri Oct 5 22:10:49 CEST 2007
715 - instead of recreating *a* standard output handle we simply
716 use STDOUT, which is faster and hopefully more robust.
717
7184.0 Fri Oct 5 12:56:00 CEST 2007
719 - incompatibly changed Coro::Storable::freeze.
720 - major new feature: added Coro::Debug, for interactive coroutine
721 debugging, tracing and much more.
722 - major bug fix: unbelievable, but true: $_, $/ and many other
723 "saved" variables actually weren't being saved. This has been fixed,
724 of course, while increasing performance while losing all the save
725 flags.
726 - save flags are gone, and all the api functions dealing with them.
727 - added Coro::Semaphore::adjust.
728 - added Coro::Util::fork_eval.
729 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
730 - added Coro::killall.
731 - reduce initial stack sizes to allow for "micro-coroutines".
732 - better async_pool resource management, moved parts of async_pool
733 handling to XS (major speed improvement).
734 - actually croak before modifying important data structures.
735 - refuse to transfer while compiling.
736 - possibly support eval EXPR better now.
737 - enable assembly per default on linux+bsd x86+amd64.
738 - all internal members were renamed _something for easier subclassing.
739 - many minor tweaks.
740
7413.63 Wed May 16 14:10:06 CEST 2007
742 - implement handcoded assembly for x86/amd64 SVR ABI.
743
7443.62 Fri Apr 27 21:36:06 CEST 2007
745 - upgrade libcoro (which might set unwind info correctly).
746 - change default on linux to setjmp/longjmp.
747
7483.61 Thu Apr 19 12:36:18 CEST 2007
749 - Coro::Storable caused an endless loop when thawing invalid
750 pst's sometimes.
751 - use a Semaphore in Coro::Storable, as Storable doesn't
752 seem to be reentrant (although it is documented to
753 be threadsafe...).
754 - fix Coro::Signal to bring back the original unreliable
755 but stateful semantics.
756 - fixed a lot of typos in Coro.pm (patch submitted by David
757 Steinbrunner, which applied flawlessly).
758
7593.6 Sat Apr 14 17:13:31 CEST 2007
760 - added some bugfixes to get eg/myhttpd working again.
761 - added Coro::Storable for often-cede'ing freeze/thaw.
762 - try to do a clean exit when a coroutine calls exit
763 (EXPERIMENTAL).
764 - got rid of indirect call through _coro_init.
765 - updated the partly antique examples in eg/ to
766 work again and be a bit less magic, too.
767 - fixed Coro::Signal semantics to work as documented again.
768
7693.55 Sun Mar 25 01:20:47 CET 2007
770 - add SAVE_DEFFH to save the default filehandle and enable
771 it by default.
772 - finally move socket-operations from Coro::Socket to Coro::Handle
773 to be able to unblock foreign sockets.
774 - add Coro::State::save_also and guarded_save.
775 - add count accessor to Coro::Semaphore.
776 - add Coro::State::cctx_stacksize.
777 - just for the fun of it, do not rely on implicit context,
778 which can dramatically improve performance, but people
779 using windows-process-emulation perls do not care much about
780 performance.
781
7823.51 Sun Mar 4 14:18:04 CET 2007
783 - fixed a problem when you weakened references to Coro::State's
784 (patch by Yuval Kogman).
785
7863.501 Wed Feb 28 12:44:07 CET 2007
787 - rename some global symbols as macosx from hell redefines
788 them without asking.
789
7903.5 Tue Feb 13 20:22:53 CET 2007
791 - do AnyEvent model detection earlier, avoiding problems
792 caused by first using AnyEvent and later Coro::Event.
793 - implement and document Coro::Event event objects.
794 - fix a potential problem in Coro::Event causing crashes.
795 - initialise PL_comppad when creating a new coroutine,
796 avoids crashes on early coro destruction.
797
7983.41 Mon Jan 22 19:19:49 CET 2007
799 - readline on Coro::Handle did not support undefined $/,
800 nor did it deliver partial lines on EOF or error.
801 - implement malloc fallback for stack allocation because
802 stupid broken idiotic OSX has a stupid broken
803 idiotic fits-the-whole-os mmap "implementation" and
804 my dick feels longer if Coro is portable even to
805 obsolete platforms.
806
8073.4 Fri Jan 19 21:52:54 CET 2007
808 - remove t/09_timer.t, as it isn't really testing much
809 but was rather flaky in practise.
810 - async_pool coro would keep arguments and callback alive until
811 it was reused.
812 - cancellation of a coroutine could cause spurious idle calls
813 in cede_notself.
814
8153.3 Sat Jan 6 03:45:00 CET 2007
816 - implement $coro->on_destroy.
817 - Coro::Event blocking semantics have been changed,
818 documented and - hopefully - improved.
819 - fix nice adding, not subtracting, from priority.
820 - fix ->prio and api_is_ready (patch by Mark Hinds).
821 - fixed an assert ("... == prev__cctx->idle_te")
822 that could errronously trigger.
823 - fix various large and small memleaks.
824 - use a (hopefully) more stable cancel implementation
825 that immediately frees the coroutine data.
826 - cede/cede_notself return a status now.
827 - added Coro::guard function.
828 - added a global coroutine pool for jobs (on my machine,
829 I can create and execute 48k simple coros/s with async,
830 and 128k coros with async_pool).
831 - Coro::AIO now uses the coroutine priority as io priority.
832
8333.2 Fri Dec 22 05:07:09 CET 2006
6 - improve portability to slightly older perls. 834 - improve portability to slightly older perls.
7 - use cleaner coroutine destruction. 835 - use cleaner coroutine destruction.
836 - simplify configuration for users.
837 - optionally (unrecommended) prefer perl functions over
838 their coro replacements.
8 839
93.11 Tue Dec 5 13:11:24 CET 2006 8403.11 Tue Dec 5 13:11:24 CET 2006
10 - fixed some bogus assert's, but as perl.h disables assert even 841 - fixed some bogus assert's, but as perl.h disables assert even
11 without NDEBUG (thank you very much), not too many people should 842 without NDEBUG (thank you very much), not too many people should
12 notice (that did include myself). Andreas König noticed, though :) 843 notice (that did include myself). Andreas König noticed, though :)

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