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Comparing Coro/Changes (file contents):
Revision 1.332 by root, Sun Apr 6 18:39:02 2008 UTC vs.
Revision 1.544 by root, Thu Nov 11 00:09:08 2010 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's 4TODO: unready_all
5 actor model (which is cool in a lot of important aspects (failures!), 5TODO: myhttpd header parsing
6 but very lacking in others (higher level ipc)). 6TODO: channel->maxsize(newsize)?
7TODO: http://www.microsoft.com/msj/archive/s2ce.aspx
8
95.25 Thu Nov 11 01:08:39 CET 2010
10 - try a different approach on netbsd - netbsd 5 finally has marginally
11 working pthreads, but still broken ucontext/sigaltstack.
12 - openbsd 4.8 finally got their act together, Coro works out of the box
13 with asm, setjmp and pthreads (no change, just informational).
14
155.24 Sat Oct 23 11:27:12 CEST 2010
16 - port to the EV 4.0 API.
17 - work around bugs in mingw32, making strawberry perl work
18 out of the box.
19 - correctly modify Coro::AIO function prototypes
20 so that they reflect the "no optional parameters" rule.
21 - "ported" libcoro to C++.
22
235.23 Mon May 17 18:50:42 CEST 2010
24 - be more resistant to ordering changes when initialising
25 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
26 Waldorf).
27 - document that perl 5.12 deliberately removed support for cloning.
28
295.22 Wed Apr 14 03:55:35 CEST 2010
30 - correctly return udnef on errors in Coro::Handle::read/write
31 (testcase by Marc Mims).
32 - convert Coro::Util into a "perl compatibility wrapper" - the functions
33 are less useful now, but are drop-in replacements for existing
34 functions, listing better alternatives in the documentation. This also
35 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
36 with Coro::Util::inet_aton.
37 - do not override $Coro::idle unconditionally in Coro.pm, as other
38 modules could have provided their own idle coro already
39 (for exmaple, Coro::AnyEvent).
40 - fix Coro::Util::gethost* functions.
41 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
42
435.21 Wed Dec 16 07:19:51 CET 2009
44 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
45 together.
46 - add some examples on how to combine other event loops with Coro in
47 Coro::AnyEvent, and how to run it (and not to block). Seems to be
48 the most common source of confusion.
49 - try to catch people naively blocking in an event callback.
50 - work around the perl filehandle bug issue in conjunction with
51 older common::sense (as indirectly pointed out by ZSystem).
52 - clarify the "not from signal handlers" section.
53
545.2 Sun Oct 4 14:54:24 CEST 2009
55 - Coro::Storable destroyed the prototypes of the functions it wrapped.
56 - export rouse_cb and rouse_wait by default now.
57 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
58 - new method $state->swap_sv.
59 - added section on "windows process emulation" to the manpage,
60 after a not-so-fruitful (nor-friendly) "discussion" with chip
61 salzenberg (discussion implies arguments, but his only arguments
62 were ad-hominems, one wonders why he started it in the first
63 place). I hope this explains it well enough for him to understand,
64 and maybe well enough for others to understand.
65 - use common::sense everywhere now.
66 - idle callbacks are no longer supported, use idle coros instead.
67 - print a thread listing when a deadlock is detected.
68
695.17 Sat Aug 22 23:09:31 CEST 2009
70 - work around a bug in the perl debugger causing crashes
71 when running under the debugger by marking _pool_handler as nodebug.
72 - speed up Coro::async considerably.
73 - try some hacks to get netbsd to work "more often" - their broken
74 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
75 - convert Coro to AE 5.0 API.
76
775.162 Tue Jul 28 04:04:03 CEST 2009
78 - perl 5.8.2 is now minimum requirement.
79 - skip t/19_handle.t on broken windows perls.
80
815.161 Wed Jul 22 04:47:38 CEST 2009
82 - Coro::AnyEvent::poll could have a different prototype when EV was
83 used as backend (analyzed by Tatsuhiko Miyagawa).
84 - Coro::AnyEvent errornously initialised the event loop when loaded,
85 not on demand.
86 - try to workaround rare */t/01_unblock.t failures.
87
885.16 Tue Jul 21 01:44:37 CEST 2009
89 - Coro::AnyEvent failed to hook into the event loop
90 when no threads had been readied between detecting
91 the event loop and actually running it.
92 - considerably speed up Coro::Select by taking avdantage
93 of AnyEvent > 4.8 and some other optimisations.
94 - implement paragraph readline mode in Coro::Handle
95 (based on patches by Zsbán Ambrus).
96 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
97 and analyzed by Yasuhiro MATSUMOTO).
98 - clarified libcoro license and copyright.
99 - someone stole my EXTRA_META!!!
100 - implement Coro::Select::patch_pp_sselect and it's brother,
101 for hardcode select overriding.
102
1035.151 Mon Jul 6 05:41:57 CEST 2009
104 - backport to windows process emulation code again (patch by
105 Yasuhiro MATSUMOTO).
106 - slightly update Coro::MakeMaker.
107
1085.15 Tue Jun 30 10:28:06 CEST 2009
109 - deprecate Coro::Socket, document how to get ipv6 support via
110 AnyEvent::Socket instead.
111 - implement signal->wait ($cb) interface, similar to semaphores.
112 - work around SvOK not supporting getmagic, so we have to getmagic
113 to test for undef :/ (reported by Matthias Waldorf).
114 - load Coro::AnyEvent in all modules using AnyEvent.
115 - work around perl corrupting our internal data structures,
116 reported by Tokuhiro Matsuno.
117 - enable per-coroutine real and cpu time gathering
118 (Coro::State::enable_times).
119
1205.14 Wed Jun 24 01:37:48 CEST 2009
121 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
122 as this seems to have been a difficult concept (poll, sleep, idle,
123 idle_upto).
124 - add Coro::AnyEvent::readable/writable functions.
125 - clarify Coro::EV/Event/AnyEvent manpages.
126 - free per-thread global scalars in the thread calling ->cancel, to
127 avoid crashes when $_, $@ etc., are magical but some of those
128 had already been freed.
129 - "unexperimentalise" the callback interface for Coro::Semaphore.
130 - speed up ready queue management/context switching by using a linked
131 list instead of an array (~5-10%).
132 - implement "watch" command in Coro::Debug shells.
133 - for fun, implement time-slicing as an example in the manpage.
134 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
135 Coro::Event, use the normal AnyEvent handling instead of dieing
136 (the same is true for Coro::Handle).
137 - properly document Coro::EV::timed_io_once.
138 - avoid unneccessary ->cancel calls in Coro::Handle.
139 - maybe make it work on mingw32 with win32 backend
140 (based on patch by Yasuhiro Matsumoto).
141
1425.132 Fri May 29 09:00:39 CEST 2009
143 - do not keep a reference to the argument itself in
144 Coro::Semaphore::guard, as it could change later.
145 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
146 should support a prepare callback.
147
1485.131 Mon Mar 16 23:20:37 CET 2009
149 - implement and document Coro->suspend, Coro->resume.
150 - fix Coro::Select implementation to not (often) close
151 the passed file descriptors (testcase provided by pippijn).
152
1535.13 Mon Dec 15 21:51:42 CET 2008
154 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
155 - don't set diehook to C<undef> but instead to NULL, to avoid
156 spurious warnings.
157 - fix a lot of bugs in Coro::SemaphoreSet.
158 - Coro::SemaphoreSet will less often create a semaphore needlessly.
159 - add Coro::SemaphoreSet::count and wait methods.
160 - take advantage of the new Guard module.
161 - deprecate Coro::guard.
162 - try to fix the dreaded 01_unblock tests once more. I hate it when
163 testsuites need more fixing than the code they are supposed to test.
164 - croak in more cases when a required callback isn't resolvable.
165 - fix some minor issues in Coro::State->call/eval.
166 - use current coroutine context instead of a temporary one
167 when temporarily switching to another coroutine.
168 - do not call C-level on_destroy handlers during global destruction,
169 to avoid needless segfaults.
170
1715.12 Sun Dec 7 13:30:38 CET 2008
172 - add default config for MirOS, which seems to be a bug-to-bug
173 compatible fork of openbsd ("world domination by releasing
174 openbsd cvs before the openbsd folks do it" or so :).
175 - free_padlist did destroy the names pad, not good, but didn't
176 seem to bother perl - this could fix issues such as eval ""
177 inside a function called from multiple coroutines.
178 - use a different method to detect destruction time.
179 - be more careful when freeing padlists just before global
180 destruction.
181 - fixed and expanded the call/cc example.
182 - renamed _terminate to _coro_run.
183 - new method Coro::Channel->shutdown.
184 - try pthreads on openbsd <4.4 (broken sigaltstack, will
185 pthreads fare better?).
186 - be less picky about destroying "a" running coroutine.
187
1885.11 Tue Nov 25 21:49:05 CET 2008
189 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
190 working code with failed assertions, introducing more bugs than
191 it fixes, requiring elaborate workarounds :(
192
1935.1 Mon Nov 24 08:54:59 CET 2008
194 - wrote a small introductory tutorial - Coro::Intro.
195 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
196 - Coro::Select did errornously dup the file descriptors
197 and didn't work with all AnyEvent backends.
198 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
199 LWP data transfers.
200 - disassociate c contexts from coro objects - this is agruably more
201 correct, but mostly allows sharing of cctxs between coro and state
202 objects, for added memory savings and speed increases.
203 - bumped $Coro::POOL_RSS up to 32kb by default.
204 - no longer set the optype to OP_CUSTOM, as B::* understandably
205 doesn't like this very much (and we *are* a type of entersub).
206 - implement state cloning, just to prove that call/cc can be done.
207 - automatically load Coro::AnyEvent in Coro::Handle.
208 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
209 do not have this method (and don't need it either).
210 - speed up generic anyevent methods in Coro::Handle by using rouse
211 callbacks.
212 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
213 others. It also makes the debugger happier, as you can trace
214 through the idle threads now.
215 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
216 - eg/event was pretty broken.
217 - better 5.8.6 compatibility.
218
2195.0 Thu Nov 20 10:35:05 CET 2008
220 - NEW ARCHITECTURE: use the latest 4.x version if you experience
221 stability issues.
222 - bump API version to 7 - all dependents must be recompiled.
223 - removed timed_* functions - they were not being used anyways
224 and should be replaced by a more generic mechanism -
225 and were annoying to support anyways :)
226 - removed SemaphoreSet's waiter method - use sem method instead.
227 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
228 - async_pool did free a scalar value twice
229 ("Attempt to unreference...").
230 - fix a longstanding bug where calling terminate on a coro that
231 was waiting for a semaphore that was just becoming available
232 would cause a deadlock (semaphore would get into a state where
233 it was available but waiters were still blocked).
234 - calling throw on a coroutine that is waiting for a semaphore will
235 no longer make it acquire the semaphore (and thus leak a count).
236 - perl's process emulation is now not even theoretically supported
237 anymore.
238 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
239 conversion of callback-style to blocking-style.
240 - new methods $coro->schedule_to and ->cede_to, to specifically
241 schedule or cede to a specific coroutine.
242 - new function Coro::Semaphore::wait.
243 - use named constants in Coro::Channel (Richard Hundt).
244 - directly patch the entersub opcode calling SLF functions (cede,
245 transfer and so on). this does speed up context switching, but
246 more importanly, it frees us from the hardcoded behaviour of
247 entersub, so we might actually be able to return something from
248 those functions and atcually create new ones.
249 - take advantage of __builtin_frame_address on gcc.
250 - expose THX in coroapi (not sure whether this was a wise decision,
251 as "threaded" perls are running at half speed anyways).
252 - implement execute_slf (schedule-like-function) interface that makes
253 it possible to implement schedule-like-functions in XS.
254 - use new SLF interface to massively speed up Coro::EV by roughly a
255 factor of two.
256 - used new SLF interface to massively speed up Coro::Semaphore by a
257 factor of three.
258 - used new SLF interface to speed up Coro::AIO by roughly a factor of
259 four and reduce its memory usage considerably.
260 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
261 for a nice speedup and vastly more correct behaviour. Also implement
262 a new method "sem" to get at the underlying semaphore object.
263 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
264 (in comparison) 20-40% speedup.
265 - used new SLF interface to reimplement Coro::Signal gaining
266 some unknown (because I was too lazy), but certain, speedup, and also
267 making signals reliable for the first time.
268 - used new SLF interface and other optimisations to speed up async_pool
269 by a factor of two. It also doesn't rely on perl's exception mechanism
270 to exit anymore. The overhead for terminating an async_pool, coro over
271 a normal async is now very small.
272 - sped up coroutine creation/destruction by 40%.
273 - forgot to include Coro/libcoro/README in the dist for all these years.
274 - work around a freebsd pthreads bug (manual testcancel is required as
275 pthread_cond_wait isn't a cancellation point on freebsd).
276 - use new rouse functions to speed up and simplify Coro::BDB.
277 - make "prefer perl native functions" work with threaded perls.
278 - condense Coro::Debug ps output, hint at v and w flags.
279 - (libcoro) lots of minor cleanups and portability improvements.
280
2814.914 Wed Nov 19 12:54:18 CET 2008
282 - fix a disastrous bug in the readline optimisation
283 introduced in 4.801.
284
2854.913 Sat Nov 15 07:58:28 CET 2008
286 - async_pool did free a scalar value twice
287 ("Attempt to unreference...").
288
2894.912 Thu Nov 13 18:31:23 CET 2008
290 - minor cleanups.
291 - use much larger stacks on linux and perl < 5.8.8.
292 - Coro::Debug::new_unix_server did not unlink the socket
293 when destroyed.
294
2954.911 Tue Nov 11 04:26:17 CET 2008
296 - "port" to threaded perls.
297
2984.91 Mon Nov 10 05:36:38 CET 2008
299 - the ->throw exception object no longer leaks.
300 - creating a new cctx leaked a scopestack entry (memleak).
301 - new coroutines didn't get created with a zero flags field
302 (unknown impact).
303 - calling ->throw on a not-yet-started coroutine should now work
304 instead of being ignored.
305 - ->throw is now supported on Coro::State objects.
306 - clean up cctx creation code a bit.
307 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
308
3094.9 Sat Nov 8 17:45:27 CET 2008
310 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
311 - (libcoro) no longer leak threads in the experimental pthread backend,
312 also speed it up considerably.
313 - (libcoro) do not rely on makecontext passing void *'s unscathed.
314 - fix compiletime dependencies on libcoro in the Makefile.
315 - cctx_count wasn't always updated properly.
316 - Coro::State::cctx_stacksize wasn't applied correctly.
317 - new function Coro::State::cctx_max_idle.
318 - the default max number of idle C contexts is now 4.
319 - (libcoro) try harder to get _setjmp/_longjmp.
320 - (libcoro) cleanup and extend the libcoro API to officially
321 allow the creation of empty source contexts.
322 - very experimental workaround for the totally broken netbsd platform.
323 - tried to hack around openbsd bugs.
324
3254.804 Wed Nov 5 16:36:00 CET 2008
326 - Coro::Debug::new_unix_server would not create a non-blocking listening
327 socket, sometimes causing freezes.
328 - (libcoro) fix misaligned stack points for setjmp and assembly
329 methods, which can cause crashes on x86/x86_64 with a sufficiently
330 aggressive compiler.
331 - new function: Coro::Debug::new_tcp_server.
332 - move ->throw into the Coro class because it only works on coro objects.
333
3344.803 Mon Nov 3 17:16:12 CET 2008
335 - (libcoro) use a global asm statement to become independent of gcc
336 otpimisations for CORO_ASM (thanks to pippijn for the idea).
337 - try to workaround yet another broken bsd, this time dragonfly.
338
3394.802 Thu Oct 30 10:56:12 CET 2008
340 - support -fno-omit-frame-pointer on x86 with the assembly method.
341 - tune 01_unblock.t tests a bit.
342
3434.801 Wed Oct 22 18:33:37 CEST 2008
344 - improve readline speed for very long "lines".
345 - backport to 5.8.8.
346
3474.8 Thu Oct 2 13:34:40 CEST 2008
348 - new function Coro::AIO::aio_wait.
349 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
350 - greatly speed up and reduce memory usage of Coro::AIO requests.
351 - implement some other µ-optimisations.
352
3534.749 Mon Sep 29 14:40:12 CEST 2008
354 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
355
3564.748 Sat Sep 27 14:03:19 CEST 2008
357 - implement, but do not document, PerlIO::cede(granularity).
358 - Coro::Storable forgot to wrap Storable::pstore.
359 - work around the multitude of leaks and memory corruption
360 bugs in PerlIO::via by using our own C-level perliol. As a side
361 effect, Coro::Storable is now much, much, much faster.
362
3634.747 Tue Sep 23 01:59:41 CEST 2008
364 - fix a per-cv memleak (one empty array was leaked per
365 code reference).
366 - avoid a crash in coro->call|rss when the coroutine was already
367 destroyed (most noticably when using Coro::Debug::ps :)
368 - also protect *Storable::FILE.
369 - push up default storable granularity to 20ms.
370
3714.746 Sun Sep 21 03:22:20 CEST 2008
372 - be more insistent on locking Storable against reentrancy
373 in Coro::Storable.
374 - move swap_def?v and throw to Coro::State, as documented.
375
3764.745 Thu Jul 24 00:14:38 CEST 2008
377 - remove debugging code related to MgPV_nolen_const, also try to
378 make it compile with perl 5.8.6 (yes, apple apparently loves
379 outdated software). Reported by John S.
380
3814.744 Tue Jul 8 22:06:35 CEST 2008
382 - correctly provide default DIE/WARN handlers as documented.
383 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
384 implementations inside perl work fine for us.
385
3864.743 Mon Jun 16 00:21:57 CEST 2008
387 - when using Coro::EV without running EV::loop it could
388 result in busy-waiting for events, this has been fixed.
389 - reduce codesize and improve performance by using EV_DEFAULT_UC.
390
3914.742 Sat May 31 14:10:21 CEST 2008
392 - implement a workaround for (some) perl <5.8.8 versions.
393 - require EV 3.3+.
394
3954.741 Fri May 30 23:33:09 CEST 2008
396 - tell netbsd how utterly broken their imitation of an OS is
397 and refuse to build by default if pthreads are in use.
398 - switch to "s" method on all bsd's by default, as their ucontext
399 stuff seems just too broken.
400 - fix a bug in Coro::Select.
401
4024.74 Thu May 29 20:05:31 CEST 2008
403 - do not test Coro::LWP for lack of dependencies.
404 - do not test Coro::Select for lack of working perls.
405
4064.73 Thu May 29 2008
407 - fix a bug in Coro::EV which would cause it to block despite
408 there being runnable coroutines.
409 - sprinkle "no warnings" freely over everything, also suppress
410 warnings for some other modules.
411 - fix typo in WSAEWOULDBLOCK.
412
4134.72 Sun May 25 05:14:36 CEST 2008
414 - tweak META.yaml a bit, unfortunately, there is no documented way
415 to have optional dependencies with CPAN. doh :(
416 - avoid running some tests on windows because they would fail due to
417 perl bug (broken fork, broken pipes...).
418 - work around perl on windows bugs where perl returns undocumented
419 error codes for sysread, syswrite etc. by taking advantage
420 of AnyEvent's workaround for that problem.
421 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
422 a common perl implementation bug on windows.
423 - use unix domain sockets in testsuite to work around
424 common perl implementation bugs on widows (they are emulated by
425 tcp sockets on windows. ugh.)
426
4274.71 Sat May 24 20:01:27 CEST 2008
428 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
429 - take advantage of async name resolution of AnyEvent::Util.
430 - work around brutal inet_aton override in Coro::LWP.
431 - take advantage of the readyhook in Coro::EV, for smoother
432 scheduling.
433
4344.7 Sun May 11 00:32:19 CEST 2008
435 - completely reworked the Coro manpage.
436 - added Coro::AnyEvent, generic event loop integration.
437 - implement cancel, ready and kill commands in Coro::Debug.
438 - document find_coro in Coro::Debug.
439 - incompatible change: rename has_stack to has_cctx.
440 - Coro::AIO and Coro::BDB no longer force event model detection,
441 use AnyEvent::AIO and AnyEvent::BDB.
442
4434.6 Sat Apr 26 10:05:14 CEST 2008
444 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
445 by the Coro module. It was a mistake to have it in the first place.
446 - (experimental) support for activestate perl 5.10 (method "w").
447 - (experimental) support for strawberry perl (method "a").
448 - coro_sigelem_set did not return a value although it had to,
449 actual impact unknown.
450
4514.51 Mon Apr 14 13:28:27 CEST 2008
452 - make it compile again on 5.8.
453
4544.50 Thu Apr 10 09:43:17 CEST 2008
455 - I did it twice! (see 4.49).
456
4574.49 Sun Apr 6 21:23:31 CEST 2008
458 - grr, instead of compiling the recent changes on 5.10 only they
459 were compiled on 5.8 only.
7 460
84.48 Sun Apr 6 20:36:46 CEST 2008 4614.48 Sun Apr 6 20:36:46 CEST 2008
9 - allow coroutine switches during eval's under 5.10.x, as it seems 462 - allow coroutine switches during eval's under 5.10.x, as it seems
10 the parser is a per-interpreter option now, so this is safe 463 the parser is a per-interpreter option now, so this is safe
11 (this might fix the odd crashing bug). 464 (this might fix the odd crashing bug).

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