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Comparing Coro/Changes (file contents):
Revision 1.275 by root, Thu Oct 11 00:38:37 2007 UTC vs.
Revision 1.511 by root, Sat Jul 11 14:24:12 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 - considerably speed up Coro::Select by taking avdantage
12 of AnyEvent > 4.8 and some other optimisations.
13 - clarified libcoro license and copyright.
14 - someone stole my EXTRA_META!!!
15
165.151 Mon Jul 6 05:41:57 CEST 2009
17 - backport to windows process emulation code again (patch by
18 Yasuhiro MATSUMOTO).
19 - slightly update Coro::MakeMaker.
20
215.15 Tue Jun 30 10:28:06 CEST 2009
22 - deprecate Coro::Socket, document how to get ipv6 support via
23 AnyEvent::Socket instead.
24 - implement signal->wait ($cb) interface, similar to semaphores.
25 - work around SvOK not supporting getmagic, so we have to getmagic
26 to test for undef :/ (reported by Matthias Waldorf).
27 - load Coro::AnyEvent in all modules using AnyEvent.
28 - work around perl corrupting our internal data structures,
29 reported by Tokuhiro Matsuno.
30 - enable per-coroutine real and cpu time gathering
31 (Coro::State::enable_times).
32
335.14 Wed Jun 24 01:37:48 CEST 2009
34 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
35 as this seems to have been a difficult concept (poll, sleep, idle,
36 idle_upto).
37 - add Coro::AnyEvent::readable/writable functions.
38 - clarify Coro::EV/Event/AnyEvent manpages.
39 - free per-thread global scalars in the thread calling ->cancel, to
40 avoid crashes when $_, $@ etc., are magical but some of those
41 had already been freed.
42 - "unexperimentalise" the callback interface for Coro::Semaphore.
43 - speed up ready queue management/context switching by using a linked
44 list instead of an array (~5-10%).
45 - implement "watch" command in Coro::Debug shells.
46 - for fun, implement time-slicing as an example in the manpage.
47 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
48 Coro::Event, use the normal AnyEvent handling instead of dieing
49 (the same is true for Coro::Handle).
50 - properly document Coro::EV::timed_io_once.
51 - avoid unneccessary ->cancel calls in Coro::Handle.
52 - maybe make it work on mingw32 with win32 backend
53 (based on patch by Yasuhiro Matsumoto).
54
555.132 Fri May 29 09:00:39 CEST 2009
56 - do not keep a reference to the argument itself in
57 Coro::Semaphore::guard, as it could change later.
58 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
59 should support a prepare callback.
60
615.131 Mon Mar 16 23:20:37 CET 2009
62 - implement and document Coro->suspend, Coro->resume.
63 - fix Coro::Select implementation to not (often) close
64 the passed file descriptors (testcase provided by pippijn).
65
665.13 Mon Dec 15 21:51:42 CET 2008
67 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
68 - don't set diehook to C<undef> but instead to NULL, to avoid
69 spurious warnings.
70 - fix a lot of bugs in Coro::SemaphoreSet.
71 - Coro::SemaphoreSet will less often create a semaphore needlessly.
72 - add Coro::SemaphoreSet::count and wait methods.
73 - take advantage of the new Guard module.
74 - deprecate Coro::guard.
75 - try to fix the dreaded 01_unblock tests once more. I hate it when
76 testsuites need more fixing than the code they are supposed to test.
77 - croak in more cases when a required callback isn't resolvable.
78 - fix some minor issues in Coro::State->call/eval.
79 - use current coroutine context instead of a temporary one
80 when temporarily switching to another coroutine.
81 - do not call C-level on_destroy handlers during global destruction,
82 to avoid needless segfaults.
83
845.12 Sun Dec 7 13:30:38 CET 2008
85 - add default config for MirOS, which seems to be a bug-to-bug
86 compatible fork of openbsd ("world domination by releasing
87 openbsd cvs before the openbsd folks do it" or so :).
88 - free_padlist did destroy the names pad, not good, but didn't
89 seem to bother perl - this could fix issues such as eval ""
90 inside a function called from multiple coroutines.
91 - use a different method to detect destruction time.
92 - be more careful when freeing padlists just before global
93 destruction.
94 - fixed and expanded the call/cc example.
95 - renamed _terminate to _coro_run.
96 - new method Coro::Channel->shutdown.
97 - try pthreads on openbsd <4.4 (broken sigaltstack, will
98 pthreads fare better?).
99 - be less picky about destroying "a" running coroutine.
100
1015.11 Tue Nov 25 21:49:05 CET 2008
102 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
103 working code with failed assertions, introducing more bugs than
104 it fixes, requiring elaborate workarounds :(
105
1065.1 Mon Nov 24 08:54:59 CET 2008
107 - wrote a small introductory tutorial - Coro::Intro.
108 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
109 - Coro::Select did errornously dup the file descriptors
110 and didn't work with all AnyEvent backends.
111 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
112 LWP data transfers.
113 - disassociate c contexts from coro objects - this is agruably more
114 correct, but mostly allows sharing of cctxs between coro and state
115 objects, for added memory savings and speed increases.
116 - bumped $Coro::POOL_RSS up to 32kb by default.
117 - no longer set the optype to OP_CUSTOM, as B::* understandably
118 doesn't like this very much (and we *are* a type of entersub).
119 - implement state cloning, just to prove that call/cc can be done.
120 - automatically load Coro::AnyEvent in Coro::Handle.
121 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
122 do not have this method (and don't need it either).
123 - speed up generic anyevent methods in Coro::Handle by using rouse
124 callbacks.
125 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
126 others. It also makes the debugger happier, as you can trace
127 through the idle threads now.
128 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
129 - eg/event was pretty broken.
130 - better 5.8.6 compatibility.
131
1325.0 Thu Nov 20 10:35:05 CET 2008
133 - NEW ARCHITECTURE: use the latest 4.x version if you experience
134 stability issues.
135 - bump API version to 7 - all dependents must be recompiled.
136 - removed timed_* functions - they were not being used anyways
137 and should be replaced by a more generic mechanism -
138 and were annoying to support anyways :)
139 - removed SemaphoreSet's waiter method - use sem method instead.
140 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
141 - async_pool did free a scalar value twice
142 ("Attempt to unreference...").
143 - fix a longstanding bug where calling terminate on a coro that
144 was waiting for a semaphore that was just becoming available
145 would cause a deadlock (semaphore would get into a state where
146 it was available but waiters were still blocked).
147 - calling throw on a coroutine that is waiting for a semaphore will
148 no longer make it acquire the semaphore (and thus leak a count).
149 - perl's process emulation is now not even theoretically supported
150 anymore.
151 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
152 conversion of callback-style to blocking-style.
153 - new methods $coro->schedule_to and ->cede_to, to specifically
154 schedule or cede to a specific coroutine.
155 - new function Coro::Semaphore::wait.
156 - use named constants in Coro::Channel (Richard Hundt).
157 - directly patch the entersub opcode calling SLF functions (cede,
158 transfer and so on). this does speed up context switching, but
159 more importanly, it frees us from the hardcoded behaviour of
160 entersub, so we might actually be able to return something from
161 those functions and atcually create new ones.
162 - take advantage of __builtin_frame_address on gcc.
163 - expose THX in coroapi (not sure whether this was a wise decision,
164 as "threaded" perls are running at half speed anyways).
165 - implement execute_slf (schedule-like-function) interface that makes
166 it possible to implement schedule-like-functions in XS.
167 - use new SLF interface to massively speed up Coro::EV by roughly a
168 factor of two.
169 - used new SLF interface to massively speed up Coro::Semaphore by a
170 factor of three.
171 - used new SLF interface to speed up Coro::AIO by roughly a factor of
172 four and reduce its memory usage considerably.
173 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
174 for a nice speedup and vastly more correct behaviour. Also implement
175 a new method "sem" to get at the underlying semaphore object.
176 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
177 (in comparison) 20-40% speedup.
178 - used new SLF interface to reimplement Coro::Signal gaining
179 some unknown (because I was too lazy), but certain, speedup, and also
180 making signals reliable for the first time.
181 - used new SLF interface and other optimisations to speed up async_pool
182 by a factor of two. It also doesn't rely on perl's exception mechanism
183 to exit anymore. The overhead for terminating an async_pool, coro over
184 a normal async is now very small.
185 - sped up coroutine creation/destruction by 40%.
186 - forgot to include Coro/libcoro/README in the dist for all these years.
187 - work around a freebsd pthreads bug (manual testcancel is required as
188 pthread_cond_wait isn't a cancellation point on freebsd).
189 - use new rouse functions to speed up and simplify Coro::BDB.
190 - make "prefer perl native functions" work with threaded perls.
191 - condense Coro::Debug ps output, hint at v and w flags.
192 - (libcoro) lots of minor cleanups and portability improvements.
193
1944.914 Wed Nov 19 12:54:18 CET 2008
195 - fix a disastrous bug in the readline optimisation
196 introduced in 4.801.
197
1984.913 Sat Nov 15 07:58:28 CET 2008
199 - async_pool did free a scalar value twice
200 ("Attempt to unreference...").
201
2024.912 Thu Nov 13 18:31:23 CET 2008
203 - minor cleanups.
204 - use much larger stacks on linux and perl < 5.8.8.
205 - Coro::Debug::new_unix_server did not unlink the socket
206 when destroyed.
207
2084.911 Tue Nov 11 04:26:17 CET 2008
209 - "port" to threaded perls.
210
2114.91 Mon Nov 10 05:36:38 CET 2008
212 - the ->throw exception object no longer leaks.
213 - creating a new cctx leaked a scopestack entry (memleak).
214 - new coroutines didn't get created with a zero flags field
215 (unknown impact).
216 - calling ->throw on a not-yet-started coroutine should now work
217 instead of being ignored.
218 - ->throw is now supported on Coro::State objects.
219 - clean up cctx creation code a bit.
220 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
221
2224.9 Sat Nov 8 17:45:27 CET 2008
223 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
224 - (libcoro) no longer leak threads in the experimental pthread backend,
225 also speed it up considerably.
226 - (libcoro) do not rely on makecontext passing void *'s unscathed.
227 - fix compiletime dependencies on libcoro in the Makefile.
228 - cctx_count wasn't always updated properly.
229 - Coro::State::cctx_stacksize wasn't applied correctly.
230 - new function Coro::State::cctx_max_idle.
231 - the default max number of idle C contexts is now 4.
232 - (libcoro) try harder to get _setjmp/_longjmp.
233 - (libcoro) cleanup and extend the libcoro API to officially
234 allow the creation of empty source contexts.
235 - very experimental workaround for the totally broken netbsd platform.
236 - tried to hack around openbsd bugs.
237
2384.804 Wed Nov 5 16:36:00 CET 2008
239 - Coro::Debug::new_unix_server would not create a non-blocking listening
240 socket, sometimes causing freezes.
241 - (libcoro) fix misaligned stack points for setjmp and assembly
242 methods, which can cause crashes on x86/x86_64 with a sufficiently
243 aggressive compiler.
244 - new function: Coro::Debug::new_tcp_server.
245 - move ->throw into the Coro class because it only works on coro objects.
246
2474.803 Mon Nov 3 17:16:12 CET 2008
248 - (libcoro) use a global asm statement to become independent of gcc
249 otpimisations for CORO_ASM (thanks to pippijn for the idea).
250 - try to workaround yet another broken bsd, this time dragonfly.
251
2524.802 Thu Oct 30 10:56:12 CET 2008
253 - support -fno-omit-frame-pointer on x86 with the assembly method.
254 - tune 01_unblock.t tests a bit.
255
2564.801 Wed Oct 22 18:33:37 CEST 2008
257 - improve readline speed for very long "lines".
258 - backport to 5.8.8.
259
2604.8 Thu Oct 2 13:34:40 CEST 2008
261 - new function Coro::AIO::aio_wait.
262 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
263 - greatly speed up and reduce memory usage of Coro::AIO requests.
264 - implement some other µ-optimisations.
265
2664.749 Mon Sep 29 14:40:12 CEST 2008
267 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
268
2694.748 Sat Sep 27 14:03:19 CEST 2008
270 - implement, but do not document, PerlIO::cede(granularity).
271 - Coro::Storable forgot to wrap Storable::pstore.
272 - work around the multitude of leaks and memory corruption
273 bugs in PerlIO::via by using our own C-level perliol. As a side
274 effect, Coro::Storable is now much, much, much faster.
275
2764.747 Tue Sep 23 01:59:41 CEST 2008
277 - fix a per-cv memleak (one empty array was leaked per
278 code reference).
279 - avoid a crash in coro->call|rss when the coroutine was already
280 destroyed (most noticably when using Coro::Debug::ps :)
281 - also protect *Storable::FILE.
282 - push up default storable granularity to 20ms.
283
2844.746 Sun Sep 21 03:22:20 CEST 2008
285 - be more insistent on locking Storable against reentrancy
286 in Coro::Storable.
287 - move swap_def?v and throw to Coro::State, as documented.
288
2894.745 Thu Jul 24 00:14:38 CEST 2008
290 - remove debugging code related to MgPV_nolen_const, also try to
291 make it compile with perl 5.8.6 (yes, apple apparently loves
292 outdated software). Reported by John S.
293
2944.744 Tue Jul 8 22:06:35 CEST 2008
295 - correctly provide default DIE/WARN handlers as documented.
296 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
297 implementations inside perl work fine for us.
298
2994.743 Mon Jun 16 00:21:57 CEST 2008
300 - when using Coro::EV without running EV::loop it could
301 result in busy-waiting for events, this has been fixed.
302 - reduce codesize and improve performance by using EV_DEFAULT_UC.
303
3044.742 Sat May 31 14:10:21 CEST 2008
305 - implement a workaround for (some) perl <5.8.8 versions.
306 - require EV 3.3+.
307
3084.741 Fri May 30 23:33:09 CEST 2008
309 - tell netbsd how utterly broken their imitation of an OS is
310 and refuse to build by default if pthreads are in use.
311 - switch to "s" method on all bsd's by default, as their ucontext
312 stuff seems just too broken.
313 - fix a bug in Coro::Select.
314
3154.74 Thu May 29 20:05:31 CEST 2008
316 - do not test Coro::LWP for lack of dependencies.
317 - do not test Coro::Select for lack of working perls.
318
3194.73 Thu May 29 2008
320 - fix a bug in Coro::EV which would cause it to block despite
321 there being runnable coroutines.
322 - sprinkle "no warnings" freely over everything, also suppress
323 warnings for some other modules.
324 - fix typo in WSAEWOULDBLOCK.
325
3264.72 Sun May 25 05:14:36 CEST 2008
327 - tweak META.yaml a bit, unfortunately, there is no documented way
328 to have optional dependencies with CPAN. doh :(
329 - avoid running some tests on windows because they would fail due to
330 perl bug (broken fork, broken pipes...).
331 - work around perl on windows bugs where perl returns undocumented
332 error codes for sysread, syswrite etc. by taking advantage
333 of AnyEvent's workaround for that problem.
334 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
335 a common perl implementation bug on windows.
336 - use unix domain sockets in testsuite to work around
337 common perl implementation bugs on widows (they are emulated by
338 tcp sockets on windows. ugh.)
339
3404.71 Sat May 24 20:01:27 CEST 2008
341 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
342 - take advantage of async name resolution of AnyEvent::Util.
343 - work around brutal inet_aton override in Coro::LWP.
344 - take advantage of the readyhook in Coro::EV, for smoother
345 scheduling.
346
3474.7 Sun May 11 00:32:19 CEST 2008
348 - completely reworked the Coro manpage.
349 - added Coro::AnyEvent, generic event loop integration.
350 - implement cancel, ready and kill commands in Coro::Debug.
351 - document find_coro in Coro::Debug.
352 - incompatible change: rename has_stack to has_cctx.
353 - Coro::AIO and Coro::BDB no longer force event model detection,
354 use AnyEvent::AIO and AnyEvent::BDB.
355
3564.6 Sat Apr 26 10:05:14 CEST 2008
357 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
358 by the Coro module. It was a mistake to have it in the first place.
359 - (experimental) support for activestate perl 5.10 (method "w").
360 - (experimental) support for strawberry perl (method "a").
361 - coro_sigelem_set did not return a value although it had to,
362 actual impact unknown.
363
3644.51 Mon Apr 14 13:28:27 CEST 2008
365 - make it compile again on 5.8.
366
3674.50 Thu Apr 10 09:43:17 CEST 2008
368 - I did it twice! (see 4.49).
369
3704.49 Sun Apr 6 21:23:31 CEST 2008
371 - grr, instead of compiling the recent changes on 5.10 only they
372 were compiled on 5.8 only.
373
3744.48 Sun Apr 6 20:36:46 CEST 2008
375 - allow coroutine switches during eval's under 5.10.x, as it seems
376 the parser is a per-interpreter option now, so this is safe
377 (this might fix the odd crashing bug).
378 - drop support for 5.9.x versions: they are dead, jim.
379
3804.47 Sun Apr 6 00:37:52 CEST 2008
381 - force cctx allocation on API calls: we know we need to force one
382 and gcc actually manages to confuse our heuristic nowadays,
383 leading to crashes and worse.
384 - document force_cctx.
385
3864.46 Fri Apr 4 22:05:43 CEST 2008
387 - upgrade libcoro, resulting in pthread-backend (which was only created
388 to fulfill the rules of the programming languages shootout).
389
3904.45 Thu Mar 13 11:55:36 CET 2008
391 - fix a file leaking bug in eg/mhyttpd that would allow
392 downloading of any file (reported by oesi).
393 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
394 (also add testcase).
395 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
396 apparently having loads of fun with that).
397 - implement $state->swap_defsv, ->swap_defav and document ->throw.
398
3994.4 Wed Feb 13 16:44:29 CET 2008
400 - only assume .cfi pseudo isns exist on GNU/Linux.
401 - add get_timed method to Coro::Channels.
402 - fixed Coro::Debug manpage.
403 - perl 5.11 compatbility improvement based on patch by
404 Andreas König.
405
4064.37 Sun Jan 20 11:25:23 CET 2008
407 - soften the check for an active parser for perl 5.10 (avoiding
408 "Coro::State::transfer called while parsing" in many cases).
409
4104.36 Sun Jan 13 10:53:56 CET 2008
411 - reset diehook when terminating from an async_pool as to not
412 trigger any __DIE__ handlers.
413
4144.35 Sun Jan 13 04:14:13 CET 2008
415 - "bt" debug command now displays any exceptions
416 from longmess and also skips the innermost
417 stackframes, giving more useufl output.
418 - allow backtraces in coroutines blocked in Coro::EV,
419 at a <1% speed hit.
420 - handle localising of $SIG{__WARN__} and __DIE__
421 properly (with a proper amount of dirty hacking).
422
4234.34 Sat Dec 22 17:49:53 CET 2007
424 - upgrade to EV version 2.0 API.
425
4264.33 Mon Dec 17 08:36:12 CET 2007
427 - make Coro::AIO etc. loadable in the absence of EV.
428
4294.32 Mon Dec 17 07:46:02 CET 2007
430 - majorly improved Coro::Handle's performance with Coro::EV.
431 - implemented the until now mythical Coro::BDB module.
432 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
433
4344.31 Wed Dec 5 12:32:39 CET 2007
435 - remove warn statement form Coro::Util.
436
4374.3 Tue Dec 4 20:33:14 CET 2007
438 - calls to the idle function could cause stack corruption
439 when the stack changed.
440 - do no longer rely on the presence of EV::DNS if EV is used
441 (because it is gone), but instead take avdantage of EV::ADNS
442 if available.
443 - add ($) prototypes to all functions in Coro::Storable.
444 - use a conventional (safer) idle callback in Coro::EV.
445 - do accept quickly in Coro::Debug to avoid endless loops.
446
4474.22 Fri Nov 30 16:04:04 CET 2007
448 - really use optimised versions for Event and EV in Coro::Util
449 and Coro::Handle.
450
4514.21 Sun Nov 25 10:48:59 CET 2007
452 - fix a spurious memory read.
453 - Coro::EV no longer keeps the eventloop "alive".
454
4554.2 Fri Nov 9 20:47:05 CET 2007
456 - enable/disable tracing from a new coroutine, not a pooled one.
457 - fix a memleak in Coro::Event.
458 - removed killall call from fork_eval.
459 - made sure store_fd is already loaded so that fork_eval
460 does not have to parse autoload in each subprocess.
461 - only use assembly method if -O switch is in $Config{optimize}.
462 - add (optional) Coro::EV module, so far the best event loop module
463 directly supported by Coro.
464 - if the event model is EV, use EV::DNS to resolve
465 stuff in Coro::Util.
466 - don't get confused by multiple event notifications in Coro::Handle.
467 - initial support for EV (libevent interface).
468 - require Event and EV using configure_requires, to force their existance.
469
4704.13 Wed Oct 24 07:26:45 CEST 2007
471 - add Coro::Storable::blocking_thaw.
472 - use a vastly more complicated technique to localise
473 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
474 - use a coroutine for the idle callback Coro::Event,
475 instead of running Event in the current coroutine context.
476 This also catches recursive invocations.
477 - actually report fork errors in gethostbyname and inet_aton.
478
4794.11 Thu Oct 11 02:40:24 CEST 2007
480 - port to threaded perls.
7 481
84.1 Thu Oct 11 02:38:16 CEST 2007 4824.1 Thu Oct 11 02:38:16 CEST 2007
9 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now 483 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
10 be local to each coro (see Coro::State). 484 be local to each coro (see Coro::State).
11 - incompatible change: for very deep reasons, cede and cede_notself 485 - incompatible change: for very deep reasons, cede and cede_notself

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