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Comparing Coro/Changes (file contents):
Revision 1.315 by root, Sun Jan 13 09:54:27 2008 UTC vs.
Revision 1.529 by root, Tue Nov 24 06:13:01 2009 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO. 3TODO: should explore PerlIO::coroaio (perl leaks like hell).
4TODO: maybe implement a default message channel, very much like Erlang 4TODO: maybe implement a default message channel, very much like Erlang's
5 (which is cool in a lot of important aspects (failures!), 5 actor model (which is cool in a lot of important aspects (failures!),
6 but very lacking in others (higher level ipc)). 6 but very lacking in others (higher level ipc)).
7TODO: unready_all
8TODO: myhttpd header parsing
9TODO: channel->maxsize(newsize)?
10
11 - clarify the "not from signal handlers" section.
12
135.2 Sun Oct 4 14:54:24 CEST 2009
14 - Coro::Storable destroyed the prototypes of the functions it wrapped.
15 - export rouse_cb and rouse_wait by default now.
16 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
17 - new method $state->swap_sv.
18 - added section on "windows process emulation" to the manpage,
19 after a not-so-fruitful (nor-friendly) "discussion" with chip
20 salzenberg (discussion implies arguments, but his only arguments
21 were ad-hominems, one wonders why he started it in the first
22 place). I hope this explains it well enough for him to understand,
23 and maybe well enough for others to understand.
24 - use common::sense everywhere now.
25 - idle callbacks are no longer supported, use idle coros instead.
26 - print a thread listing when a deadlock is detected.
27
285.17 Sat Aug 22 23:09:31 CEST 2009
29 - work around a bug in the perl debugger causing crashes
30 when running under the debugger by marking _pool_handler as nodebug.
31 - speed up Coro::async considerably.
32 - try some hacks to get netbsd to work "more often" - their broken
33 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
34 - convert Coro to AE 5.0 API.
35
365.162 Tue Jul 28 04:04:03 CEST 2009
37 - perl 5.8.2 is now minimum requirement.
38 - skip t/19_handle.t on broken windows perls.
39
405.161 Wed Jul 22 04:47:38 CEST 2009
41 - Coro::AnyEvent::poll could have a different prototype when EV was
42 used as backend (analyzed by Tatsuhiko Miyagawa).
43 - Coro::AnyEvent errornously initialised the event loop when loaded,
44 not on demand.
45 - try to workaround rare */t/01_unblock.t failures.
46
475.16 Tue Jul 21 01:44:37 CEST 2009
48 - Coro::AnyEvent failed to hook into the event loop
49 when no threads had been readied between detecting
50 the event loop and actually running it.
51 - considerably speed up Coro::Select by taking avdantage
52 of AnyEvent > 4.8 and some other optimisations.
53 - implement paragraph readline mode in Coro::Handle
54 (based on patches by Zsbán Ambrus).
55 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
56 and analyzed by Yasuhiro MATSUMOTO).
57 - clarified libcoro license and copyright.
58 - someone stole my EXTRA_META!!!
59 - implement Coro::Select::patch_pp_sselect and it's brother,
60 for hardcode select overriding.
61
625.151 Mon Jul 6 05:41:57 CEST 2009
63 - backport to windows process emulation code again (patch by
64 Yasuhiro MATSUMOTO).
65 - slightly update Coro::MakeMaker.
66
675.15 Tue Jun 30 10:28:06 CEST 2009
68 - deprecate Coro::Socket, document how to get ipv6 support via
69 AnyEvent::Socket instead.
70 - implement signal->wait ($cb) interface, similar to semaphores.
71 - work around SvOK not supporting getmagic, so we have to getmagic
72 to test for undef :/ (reported by Matthias Waldorf).
73 - load Coro::AnyEvent in all modules using AnyEvent.
74 - work around perl corrupting our internal data structures,
75 reported by Tokuhiro Matsuno.
76 - enable per-coroutine real and cpu time gathering
77 (Coro::State::enable_times).
78
795.14 Wed Jun 24 01:37:48 CEST 2009
80 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
81 as this seems to have been a difficult concept (poll, sleep, idle,
82 idle_upto).
83 - add Coro::AnyEvent::readable/writable functions.
84 - clarify Coro::EV/Event/AnyEvent manpages.
85 - free per-thread global scalars in the thread calling ->cancel, to
86 avoid crashes when $_, $@ etc., are magical but some of those
87 had already been freed.
88 - "unexperimentalise" the callback interface for Coro::Semaphore.
89 - speed up ready queue management/context switching by using a linked
90 list instead of an array (~5-10%).
91 - implement "watch" command in Coro::Debug shells.
92 - for fun, implement time-slicing as an example in the manpage.
93 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
94 Coro::Event, use the normal AnyEvent handling instead of dieing
95 (the same is true for Coro::Handle).
96 - properly document Coro::EV::timed_io_once.
97 - avoid unneccessary ->cancel calls in Coro::Handle.
98 - maybe make it work on mingw32 with win32 backend
99 (based on patch by Yasuhiro Matsumoto).
100
1015.132 Fri May 29 09:00:39 CEST 2009
102 - do not keep a reference to the argument itself in
103 Coro::Semaphore::guard, as it could change later.
104 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
105 should support a prepare callback.
106
1075.131 Mon Mar 16 23:20:37 CET 2009
108 - implement and document Coro->suspend, Coro->resume.
109 - fix Coro::Select implementation to not (often) close
110 the passed file descriptors (testcase provided by pippijn).
111
1125.13 Mon Dec 15 21:51:42 CET 2008
113 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
114 - don't set diehook to C<undef> but instead to NULL, to avoid
115 spurious warnings.
116 - fix a lot of bugs in Coro::SemaphoreSet.
117 - Coro::SemaphoreSet will less often create a semaphore needlessly.
118 - add Coro::SemaphoreSet::count and wait methods.
119 - take advantage of the new Guard module.
120 - deprecate Coro::guard.
121 - try to fix the dreaded 01_unblock tests once more. I hate it when
122 testsuites need more fixing than the code they are supposed to test.
123 - croak in more cases when a required callback isn't resolvable.
124 - fix some minor issues in Coro::State->call/eval.
125 - use current coroutine context instead of a temporary one
126 when temporarily switching to another coroutine.
127 - do not call C-level on_destroy handlers during global destruction,
128 to avoid needless segfaults.
129
1305.12 Sun Dec 7 13:30:38 CET 2008
131 - add default config for MirOS, which seems to be a bug-to-bug
132 compatible fork of openbsd ("world domination by releasing
133 openbsd cvs before the openbsd folks do it" or so :).
134 - free_padlist did destroy the names pad, not good, but didn't
135 seem to bother perl - this could fix issues such as eval ""
136 inside a function called from multiple coroutines.
137 - use a different method to detect destruction time.
138 - be more careful when freeing padlists just before global
139 destruction.
140 - fixed and expanded the call/cc example.
141 - renamed _terminate to _coro_run.
142 - new method Coro::Channel->shutdown.
143 - try pthreads on openbsd <4.4 (broken sigaltstack, will
144 pthreads fare better?).
145 - be less picky about destroying "a" running coroutine.
146
1475.11 Tue Nov 25 21:49:05 CET 2008
148 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
149 working code with failed assertions, introducing more bugs than
150 it fixes, requiring elaborate workarounds :(
151
1525.1 Mon Nov 24 08:54:59 CET 2008
153 - wrote a small introductory tutorial - Coro::Intro.
154 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
155 - Coro::Select did errornously dup the file descriptors
156 and didn't work with all AnyEvent backends.
157 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
158 LWP data transfers.
159 - disassociate c contexts from coro objects - this is agruably more
160 correct, but mostly allows sharing of cctxs between coro and state
161 objects, for added memory savings and speed increases.
162 - bumped $Coro::POOL_RSS up to 32kb by default.
163 - no longer set the optype to OP_CUSTOM, as B::* understandably
164 doesn't like this very much (and we *are* a type of entersub).
165 - implement state cloning, just to prove that call/cc can be done.
166 - automatically load Coro::AnyEvent in Coro::Handle.
167 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
168 do not have this method (and don't need it either).
169 - speed up generic anyevent methods in Coro::Handle by using rouse
170 callbacks.
171 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
172 others. It also makes the debugger happier, as you can trace
173 through the idle threads now.
174 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
175 - eg/event was pretty broken.
176 - better 5.8.6 compatibility.
177
1785.0 Thu Nov 20 10:35:05 CET 2008
179 - NEW ARCHITECTURE: use the latest 4.x version if you experience
180 stability issues.
181 - bump API version to 7 - all dependents must be recompiled.
182 - removed timed_* functions - they were not being used anyways
183 and should be replaced by a more generic mechanism -
184 and were annoying to support anyways :)
185 - removed SemaphoreSet's waiter method - use sem method instead.
186 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
187 - async_pool did free a scalar value twice
188 ("Attempt to unreference...").
189 - fix a longstanding bug where calling terminate on a coro that
190 was waiting for a semaphore that was just becoming available
191 would cause a deadlock (semaphore would get into a state where
192 it was available but waiters were still blocked).
193 - calling throw on a coroutine that is waiting for a semaphore will
194 no longer make it acquire the semaphore (and thus leak a count).
195 - perl's process emulation is now not even theoretically supported
196 anymore.
197 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
198 conversion of callback-style to blocking-style.
199 - new methods $coro->schedule_to and ->cede_to, to specifically
200 schedule or cede to a specific coroutine.
201 - new function Coro::Semaphore::wait.
202 - use named constants in Coro::Channel (Richard Hundt).
203 - directly patch the entersub opcode calling SLF functions (cede,
204 transfer and so on). this does speed up context switching, but
205 more importanly, it frees us from the hardcoded behaviour of
206 entersub, so we might actually be able to return something from
207 those functions and atcually create new ones.
208 - take advantage of __builtin_frame_address on gcc.
209 - expose THX in coroapi (not sure whether this was a wise decision,
210 as "threaded" perls are running at half speed anyways).
211 - implement execute_slf (schedule-like-function) interface that makes
212 it possible to implement schedule-like-functions in XS.
213 - use new SLF interface to massively speed up Coro::EV by roughly a
214 factor of two.
215 - used new SLF interface to massively speed up Coro::Semaphore by a
216 factor of three.
217 - used new SLF interface to speed up Coro::AIO by roughly a factor of
218 four and reduce its memory usage considerably.
219 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
220 for a nice speedup and vastly more correct behaviour. Also implement
221 a new method "sem" to get at the underlying semaphore object.
222 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
223 (in comparison) 20-40% speedup.
224 - used new SLF interface to reimplement Coro::Signal gaining
225 some unknown (because I was too lazy), but certain, speedup, and also
226 making signals reliable for the first time.
227 - used new SLF interface and other optimisations to speed up async_pool
228 by a factor of two. It also doesn't rely on perl's exception mechanism
229 to exit anymore. The overhead for terminating an async_pool, coro over
230 a normal async is now very small.
231 - sped up coroutine creation/destruction by 40%.
232 - forgot to include Coro/libcoro/README in the dist for all these years.
233 - work around a freebsd pthreads bug (manual testcancel is required as
234 pthread_cond_wait isn't a cancellation point on freebsd).
235 - use new rouse functions to speed up and simplify Coro::BDB.
236 - make "prefer perl native functions" work with threaded perls.
237 - condense Coro::Debug ps output, hint at v and w flags.
238 - (libcoro) lots of minor cleanups and portability improvements.
239
2404.914 Wed Nov 19 12:54:18 CET 2008
241 - fix a disastrous bug in the readline optimisation
242 introduced in 4.801.
243
2444.913 Sat Nov 15 07:58:28 CET 2008
245 - async_pool did free a scalar value twice
246 ("Attempt to unreference...").
247
2484.912 Thu Nov 13 18:31:23 CET 2008
249 - minor cleanups.
250 - use much larger stacks on linux and perl < 5.8.8.
251 - Coro::Debug::new_unix_server did not unlink the socket
252 when destroyed.
253
2544.911 Tue Nov 11 04:26:17 CET 2008
255 - "port" to threaded perls.
256
2574.91 Mon Nov 10 05:36:38 CET 2008
258 - the ->throw exception object no longer leaks.
259 - creating a new cctx leaked a scopestack entry (memleak).
260 - new coroutines didn't get created with a zero flags field
261 (unknown impact).
262 - calling ->throw on a not-yet-started coroutine should now work
263 instead of being ignored.
264 - ->throw is now supported on Coro::State objects.
265 - clean up cctx creation code a bit.
266 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
267
2684.9 Sat Nov 8 17:45:27 CET 2008
269 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
270 - (libcoro) no longer leak threads in the experimental pthread backend,
271 also speed it up considerably.
272 - (libcoro) do not rely on makecontext passing void *'s unscathed.
273 - fix compiletime dependencies on libcoro in the Makefile.
274 - cctx_count wasn't always updated properly.
275 - Coro::State::cctx_stacksize wasn't applied correctly.
276 - new function Coro::State::cctx_max_idle.
277 - the default max number of idle C contexts is now 4.
278 - (libcoro) try harder to get _setjmp/_longjmp.
279 - (libcoro) cleanup and extend the libcoro API to officially
280 allow the creation of empty source contexts.
281 - very experimental workaround for the totally broken netbsd platform.
282 - tried to hack around openbsd bugs.
283
2844.804 Wed Nov 5 16:36:00 CET 2008
285 - Coro::Debug::new_unix_server would not create a non-blocking listening
286 socket, sometimes causing freezes.
287 - (libcoro) fix misaligned stack points for setjmp and assembly
288 methods, which can cause crashes on x86/x86_64 with a sufficiently
289 aggressive compiler.
290 - new function: Coro::Debug::new_tcp_server.
291 - move ->throw into the Coro class because it only works on coro objects.
292
2934.803 Mon Nov 3 17:16:12 CET 2008
294 - (libcoro) use a global asm statement to become independent of gcc
295 otpimisations for CORO_ASM (thanks to pippijn for the idea).
296 - try to workaround yet another broken bsd, this time dragonfly.
297
2984.802 Thu Oct 30 10:56:12 CET 2008
299 - support -fno-omit-frame-pointer on x86 with the assembly method.
300 - tune 01_unblock.t tests a bit.
301
3024.801 Wed Oct 22 18:33:37 CEST 2008
303 - improve readline speed for very long "lines".
304 - backport to 5.8.8.
305
3064.8 Thu Oct 2 13:34:40 CEST 2008
307 - new function Coro::AIO::aio_wait.
308 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
309 - greatly speed up and reduce memory usage of Coro::AIO requests.
310 - implement some other µ-optimisations.
311
3124.749 Mon Sep 29 14:40:12 CEST 2008
313 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
314
3154.748 Sat Sep 27 14:03:19 CEST 2008
316 - implement, but do not document, PerlIO::cede(granularity).
317 - Coro::Storable forgot to wrap Storable::pstore.
318 - work around the multitude of leaks and memory corruption
319 bugs in PerlIO::via by using our own C-level perliol. As a side
320 effect, Coro::Storable is now much, much, much faster.
321
3224.747 Tue Sep 23 01:59:41 CEST 2008
323 - fix a per-cv memleak (one empty array was leaked per
324 code reference).
325 - avoid a crash in coro->call|rss when the coroutine was already
326 destroyed (most noticably when using Coro::Debug::ps :)
327 - also protect *Storable::FILE.
328 - push up default storable granularity to 20ms.
329
3304.746 Sun Sep 21 03:22:20 CEST 2008
331 - be more insistent on locking Storable against reentrancy
332 in Coro::Storable.
333 - move swap_def?v and throw to Coro::State, as documented.
334
3354.745 Thu Jul 24 00:14:38 CEST 2008
336 - remove debugging code related to MgPV_nolen_const, also try to
337 make it compile with perl 5.8.6 (yes, apple apparently loves
338 outdated software). Reported by John S.
339
3404.744 Tue Jul 8 22:06:35 CEST 2008
341 - correctly provide default DIE/WARN handlers as documented.
342 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
343 implementations inside perl work fine for us.
344
3454.743 Mon Jun 16 00:21:57 CEST 2008
346 - when using Coro::EV without running EV::loop it could
347 result in busy-waiting for events, this has been fixed.
348 - reduce codesize and improve performance by using EV_DEFAULT_UC.
349
3504.742 Sat May 31 14:10:21 CEST 2008
351 - implement a workaround for (some) perl <5.8.8 versions.
352 - require EV 3.3+.
353
3544.741 Fri May 30 23:33:09 CEST 2008
355 - tell netbsd how utterly broken their imitation of an OS is
356 and refuse to build by default if pthreads are in use.
357 - switch to "s" method on all bsd's by default, as their ucontext
358 stuff seems just too broken.
359 - fix a bug in Coro::Select.
360
3614.74 Thu May 29 20:05:31 CEST 2008
362 - do not test Coro::LWP for lack of dependencies.
363 - do not test Coro::Select for lack of working perls.
364
3654.73 Thu May 29 2008
366 - fix a bug in Coro::EV which would cause it to block despite
367 there being runnable coroutines.
368 - sprinkle "no warnings" freely over everything, also suppress
369 warnings for some other modules.
370 - fix typo in WSAEWOULDBLOCK.
371
3724.72 Sun May 25 05:14:36 CEST 2008
373 - tweak META.yaml a bit, unfortunately, there is no documented way
374 to have optional dependencies with CPAN. doh :(
375 - avoid running some tests on windows because they would fail due to
376 perl bug (broken fork, broken pipes...).
377 - work around perl on windows bugs where perl returns undocumented
378 error codes for sysread, syswrite etc. by taking advantage
379 of AnyEvent's workaround for that problem.
380 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
381 a common perl implementation bug on windows.
382 - use unix domain sockets in testsuite to work around
383 common perl implementation bugs on widows (they are emulated by
384 tcp sockets on windows. ugh.)
385
3864.71 Sat May 24 20:01:27 CEST 2008
387 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
388 - take advantage of async name resolution of AnyEvent::Util.
389 - work around brutal inet_aton override in Coro::LWP.
390 - take advantage of the readyhook in Coro::EV, for smoother
391 scheduling.
392
3934.7 Sun May 11 00:32:19 CEST 2008
394 - completely reworked the Coro manpage.
395 - added Coro::AnyEvent, generic event loop integration.
396 - implement cancel, ready and kill commands in Coro::Debug.
397 - document find_coro in Coro::Debug.
398 - incompatible change: rename has_stack to has_cctx.
399 - Coro::AIO and Coro::BDB no longer force event model detection,
400 use AnyEvent::AIO and AnyEvent::BDB.
401
4024.6 Sat Apr 26 10:05:14 CEST 2008
403 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
404 by the Coro module. It was a mistake to have it in the first place.
405 - (experimental) support for activestate perl 5.10 (method "w").
406 - (experimental) support for strawberry perl (method "a").
407 - coro_sigelem_set did not return a value although it had to,
408 actual impact unknown.
409
4104.51 Mon Apr 14 13:28:27 CEST 2008
411 - make it compile again on 5.8.
412
4134.50 Thu Apr 10 09:43:17 CEST 2008
414 - I did it twice! (see 4.49).
415
4164.49 Sun Apr 6 21:23:31 CEST 2008
417 - grr, instead of compiling the recent changes on 5.10 only they
418 were compiled on 5.8 only.
419
4204.48 Sun Apr 6 20:36:46 CEST 2008
421 - allow coroutine switches during eval's under 5.10.x, as it seems
422 the parser is a per-interpreter option now, so this is safe
423 (this might fix the odd crashing bug).
424 - drop support for 5.9.x versions: they are dead, jim.
425
4264.47 Sun Apr 6 00:37:52 CEST 2008
427 - force cctx allocation on API calls: we know we need to force one
428 and gcc actually manages to confuse our heuristic nowadays,
429 leading to crashes and worse.
430 - document force_cctx.
431
4324.46 Fri Apr 4 22:05:43 CEST 2008
433 - upgrade libcoro, resulting in pthread-backend (which was only created
434 to fulfill the rules of the programming languages shootout).
435
4364.45 Thu Mar 13 11:55:36 CET 2008
437 - fix a file leaking bug in eg/mhyttpd that would allow
438 downloading of any file (reported by oesi).
439 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
440 (also add testcase).
441 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
442 apparently having loads of fun with that).
443 - implement $state->swap_defsv, ->swap_defav and document ->throw.
444
4454.4 Wed Feb 13 16:44:29 CET 2008
446 - only assume .cfi pseudo isns exist on GNU/Linux.
447 - add get_timed method to Coro::Channels.
448 - fixed Coro::Debug manpage.
449 - perl 5.11 compatbility improvement based on patch by
450 Andreas König.
451
4524.37 Sun Jan 20 11:25:23 CET 2008
453 - soften the check for an active parser for perl 5.10 (avoiding
454 "Coro::State::transfer called while parsing" in many cases).
7 455
84.36 Sun Jan 13 10:53:56 CET 2008 4564.36 Sun Jan 13 10:53:56 CET 2008
9 - reset diehook when terminating from an async_pool as to not 457 - reset diehook when terminating from an async_pool as to not
10 trigger any __DIE__ handlers. 458 trigger any __DIE__ handlers.
11 459

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