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Comparing Coro/Changes (file contents):
Revision 1.356 by root, Thu May 29 03:31:52 2008 UTC vs.
Revision 1.549 by root, Sat Feb 19 04:34:58 2011 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
7 8
84.73 9 - add a big "Coro thread life cycle" section to "man Coro".
10 - try a tentative workaround against the breakage that 5.13 has
11 introduced without depreciation period. sigh.
12
135.36 Sun Feb 13 05:33:41 CET 2011
14 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
15 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
16 method call.
17 - undocument Coro::Timer::sleep and obsolete whole module.
18 - optimise Coro::Timer::timeout memory and cpu usage.
19 - slightly updated Coro::Intro for recent changes.
20 - do not initialise PL_dirty anymore.
21
225.25 Thu Nov 11 01:08:39 CET 2010
23 - try a different approach on netbsd - netbsd 5 finally has marginally
24 working pthreads, but still broken ucontext/sigaltstack.
25 - openbsd 4.8 finally got their act together, Coro works out of the box
26 with asm, setjmp and pthreads (no change, just informational).
27
285.24 Sat Oct 23 11:27:12 CEST 2010
29 - port to the EV 4.0 API.
30 - work around bugs in mingw32, making strawberry perl work
31 out of the box.
32 - correctly modify Coro::AIO function prototypes
33 so that they reflect the "no optional parameters" rule.
34 - "ported" libcoro to C++.
35
365.23 Mon May 17 18:50:42 CEST 2010
37 - be more resistant to ordering changes when initialising
38 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
39 Waldorf).
40 - document that perl 5.12 deliberately removed support for cloning.
41
425.22 Wed Apr 14 03:55:35 CEST 2010
43 - correctly return udnef on errors in Coro::Handle::read/write
44 (testcase by Marc Mims).
45 - convert Coro::Util into a "perl compatibility wrapper" - the functions
46 are less useful now, but are drop-in replacements for existing
47 functions, listing better alternatives in the documentation. This also
48 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
49 with Coro::Util::inet_aton.
50 - do not override $Coro::idle unconditionally in Coro.pm, as other
51 modules could have provided their own idle coro already
52 (for exmaple, Coro::AnyEvent).
53 - fix Coro::Util::gethost* functions.
54 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
55
565.21 Wed Dec 16 07:19:51 CET 2009
57 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
58 together.
59 - add some examples on how to combine other event loops with Coro in
60 Coro::AnyEvent, and how to run it (and not to block). Seems to be
61 the most common source of confusion.
62 - try to catch people naively blocking in an event callback.
63 - work around the perl filehandle bug issue in conjunction with
64 older common::sense (as indirectly pointed out by ZSystem).
65 - clarify the "not from signal handlers" section.
66
675.2 Sun Oct 4 14:54:24 CEST 2009
68 - Coro::Storable destroyed the prototypes of the functions it wrapped.
69 - export rouse_cb and rouse_wait by default now.
70 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
71 - new method $state->swap_sv.
72 - added section on "windows process emulation" to the manpage,
73 after a not-so-fruitful (nor-friendly) "discussion" with chip
74 salzenberg (discussion implies arguments, but his only arguments
75 were ad-hominems, one wonders why he started it in the first
76 place). I hope this explains it well enough for him to understand,
77 and maybe well enough for others to understand.
78 - use common::sense everywhere now.
79 - idle callbacks are no longer supported, use idle coros instead.
80 - print a thread listing when a deadlock is detected.
81
825.17 Sat Aug 22 23:09:31 CEST 2009
83 - work around a bug in the perl debugger causing crashes
84 when running under the debugger by marking _pool_handler as nodebug.
85 - speed up Coro::async considerably.
86 - try some hacks to get netbsd to work "more often" - their broken
87 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
88 - convert Coro to AE 5.0 API.
89
905.162 Tue Jul 28 04:04:03 CEST 2009
91 - perl 5.8.2 is now minimum requirement.
92 - skip t/19_handle.t on broken windows perls.
93
945.161 Wed Jul 22 04:47:38 CEST 2009
95 - Coro::AnyEvent::poll could have a different prototype when EV was
96 used as backend (analyzed by Tatsuhiko Miyagawa).
97 - Coro::AnyEvent errornously initialised the event loop when loaded,
98 not on demand.
99 - try to workaround rare */t/01_unblock.t failures.
100
1015.16 Tue Jul 21 01:44:37 CEST 2009
102 - Coro::AnyEvent failed to hook into the event loop
103 when no threads had been readied between detecting
104 the event loop and actually running it.
105 - considerably speed up Coro::Select by taking avdantage
106 of AnyEvent > 4.8 and some other optimisations.
107 - implement paragraph readline mode in Coro::Handle
108 (based on patches by Zsbán Ambrus).
109 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
110 and analyzed by Yasuhiro MATSUMOTO).
111 - clarified libcoro license and copyright.
112 - someone stole my EXTRA_META!!!
113 - implement Coro::Select::patch_pp_sselect and it's brother,
114 for hardcode select overriding.
115
1165.151 Mon Jul 6 05:41:57 CEST 2009
117 - backport to windows process emulation code again (patch by
118 Yasuhiro MATSUMOTO).
119 - slightly update Coro::MakeMaker.
120
1215.15 Tue Jun 30 10:28:06 CEST 2009
122 - deprecate Coro::Socket, document how to get ipv6 support via
123 AnyEvent::Socket instead.
124 - implement signal->wait ($cb) interface, similar to semaphores.
125 - work around SvOK not supporting getmagic, so we have to getmagic
126 to test for undef :/ (reported by Matthias Waldorf).
127 - load Coro::AnyEvent in all modules using AnyEvent.
128 - work around perl corrupting our internal data structures,
129 reported by Tokuhiro Matsuno.
130 - enable per-coroutine real and cpu time gathering
131 (Coro::State::enable_times).
132
1335.14 Wed Jun 24 01:37:48 CEST 2009
134 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
135 as this seems to have been a difficult concept (poll, sleep, idle,
136 idle_upto).
137 - add Coro::AnyEvent::readable/writable functions.
138 - clarify Coro::EV/Event/AnyEvent manpages.
139 - free per-thread global scalars in the thread calling ->cancel, to
140 avoid crashes when $_, $@ etc., are magical but some of those
141 had already been freed.
142 - "unexperimentalise" the callback interface for Coro::Semaphore.
143 - speed up ready queue management/context switching by using a linked
144 list instead of an array (~5-10%).
145 - implement "watch" command in Coro::Debug shells.
146 - for fun, implement time-slicing as an example in the manpage.
147 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
148 Coro::Event, use the normal AnyEvent handling instead of dieing
149 (the same is true for Coro::Handle).
150 - properly document Coro::EV::timed_io_once.
151 - avoid unneccessary ->cancel calls in Coro::Handle.
152 - maybe make it work on mingw32 with win32 backend
153 (based on patch by Yasuhiro Matsumoto).
154
1555.132 Fri May 29 09:00:39 CEST 2009
156 - do not keep a reference to the argument itself in
157 Coro::Semaphore::guard, as it could change later.
158 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
159 should support a prepare callback.
160
1615.131 Mon Mar 16 23:20:37 CET 2009
162 - implement and document Coro->suspend, Coro->resume.
163 - fix Coro::Select implementation to not (often) close
164 the passed file descriptors (testcase provided by pippijn).
165
1665.13 Mon Dec 15 21:51:42 CET 2008
167 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
168 - don't set diehook to C<undef> but instead to NULL, to avoid
169 spurious warnings.
170 - fix a lot of bugs in Coro::SemaphoreSet.
171 - Coro::SemaphoreSet will less often create a semaphore needlessly.
172 - add Coro::SemaphoreSet::count and wait methods.
173 - take advantage of the new Guard module.
174 - deprecate Coro::guard.
175 - try to fix the dreaded 01_unblock tests once more. I hate it when
176 testsuites need more fixing than the code they are supposed to test.
177 - croak in more cases when a required callback isn't resolvable.
178 - fix some minor issues in Coro::State->call/eval.
179 - use current coroutine context instead of a temporary one
180 when temporarily switching to another coroutine.
181 - do not call C-level on_destroy handlers during global destruction,
182 to avoid needless segfaults.
183
1845.12 Sun Dec 7 13:30:38 CET 2008
185 - add default config for MirOS, which seems to be a bug-to-bug
186 compatible fork of openbsd ("world domination by releasing
187 openbsd cvs before the openbsd folks do it" or so :).
188 - free_padlist did destroy the names pad, not good, but didn't
189 seem to bother perl - this could fix issues such as eval ""
190 inside a function called from multiple coroutines.
191 - use a different method to detect destruction time.
192 - be more careful when freeing padlists just before global
193 destruction.
194 - fixed and expanded the call/cc example.
195 - renamed _terminate to _coro_run.
196 - new method Coro::Channel->shutdown.
197 - try pthreads on openbsd <4.4 (broken sigaltstack, will
198 pthreads fare better?).
199 - be less picky about destroying "a" running coroutine.
200
2015.11 Tue Nov 25 21:49:05 CET 2008
202 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
203 working code with failed assertions, introducing more bugs than
204 it fixes, requiring elaborate workarounds :(
205
2065.1 Mon Nov 24 08:54:59 CET 2008
207 - wrote a small introductory tutorial - Coro::Intro.
208 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
209 - Coro::Select did errornously dup the file descriptors
210 and didn't work with all AnyEvent backends.
211 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
212 LWP data transfers.
213 - disassociate c contexts from coro objects - this is agruably more
214 correct, but mostly allows sharing of cctxs between coro and state
215 objects, for added memory savings and speed increases.
216 - bumped $Coro::POOL_RSS up to 32kb by default.
217 - no longer set the optype to OP_CUSTOM, as B::* understandably
218 doesn't like this very much (and we *are* a type of entersub).
219 - implement state cloning, just to prove that call/cc can be done.
220 - automatically load Coro::AnyEvent in Coro::Handle.
221 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
222 do not have this method (and don't need it either).
223 - speed up generic anyevent methods in Coro::Handle by using rouse
224 callbacks.
225 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
226 others. It also makes the debugger happier, as you can trace
227 through the idle threads now.
228 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
229 - eg/event was pretty broken.
230 - better 5.8.6 compatibility.
231
2325.0 Thu Nov 20 10:35:05 CET 2008
233 - NEW ARCHITECTURE: use the latest 4.x version if you experience
234 stability issues.
235 - bump API version to 7 - all dependents must be recompiled.
236 - removed timed_* functions - they were not being used anyways
237 and should be replaced by a more generic mechanism -
238 and were annoying to support anyways :)
239 - removed SemaphoreSet's waiter method - use sem method instead.
240 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
241 - async_pool did free a scalar value twice
242 ("Attempt to unreference...").
243 - fix a longstanding bug where calling terminate on a coro that
244 was waiting for a semaphore that was just becoming available
245 would cause a deadlock (semaphore would get into a state where
246 it was available but waiters were still blocked).
247 - calling throw on a coroutine that is waiting for a semaphore will
248 no longer make it acquire the semaphore (and thus leak a count).
249 - perl's process emulation is now not even theoretically supported
250 anymore.
251 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
252 conversion of callback-style to blocking-style.
253 - new methods $coro->schedule_to and ->cede_to, to specifically
254 schedule or cede to a specific coroutine.
255 - new function Coro::Semaphore::wait.
256 - use named constants in Coro::Channel (Richard Hundt).
257 - directly patch the entersub opcode calling SLF functions (cede,
258 transfer and so on). this does speed up context switching, but
259 more importanly, it frees us from the hardcoded behaviour of
260 entersub, so we might actually be able to return something from
261 those functions and atcually create new ones.
262 - take advantage of __builtin_frame_address on gcc.
263 - expose THX in coroapi (not sure whether this was a wise decision,
264 as "threaded" perls are running at half speed anyways).
265 - implement execute_slf (schedule-like-function) interface that makes
266 it possible to implement schedule-like-functions in XS.
267 - use new SLF interface to massively speed up Coro::EV by roughly a
268 factor of two.
269 - used new SLF interface to massively speed up Coro::Semaphore by a
270 factor of three.
271 - used new SLF interface to speed up Coro::AIO by roughly a factor of
272 four and reduce its memory usage considerably.
273 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
274 for a nice speedup and vastly more correct behaviour. Also implement
275 a new method "sem" to get at the underlying semaphore object.
276 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
277 (in comparison) 20-40% speedup.
278 - used new SLF interface to reimplement Coro::Signal gaining
279 some unknown (because I was too lazy), but certain, speedup, and also
280 making signals reliable for the first time.
281 - used new SLF interface and other optimisations to speed up async_pool
282 by a factor of two. It also doesn't rely on perl's exception mechanism
283 to exit anymore. The overhead for terminating an async_pool, coro over
284 a normal async is now very small.
285 - sped up coroutine creation/destruction by 40%.
286 - forgot to include Coro/libcoro/README in the dist for all these years.
287 - work around a freebsd pthreads bug (manual testcancel is required as
288 pthread_cond_wait isn't a cancellation point on freebsd).
289 - use new rouse functions to speed up and simplify Coro::BDB.
290 - make "prefer perl native functions" work with threaded perls.
291 - condense Coro::Debug ps output, hint at v and w flags.
292 - (libcoro) lots of minor cleanups and portability improvements.
293
2944.914 Wed Nov 19 12:54:18 CET 2008
295 - fix a disastrous bug in the readline optimisation
296 introduced in 4.801.
297
2984.913 Sat Nov 15 07:58:28 CET 2008
299 - async_pool did free a scalar value twice
300 ("Attempt to unreference...").
301
3024.912 Thu Nov 13 18:31:23 CET 2008
303 - minor cleanups.
304 - use much larger stacks on linux and perl < 5.8.8.
305 - Coro::Debug::new_unix_server did not unlink the socket
306 when destroyed.
307
3084.911 Tue Nov 11 04:26:17 CET 2008
309 - "port" to threaded perls.
310
3114.91 Mon Nov 10 05:36:38 CET 2008
312 - the ->throw exception object no longer leaks.
313 - creating a new cctx leaked a scopestack entry (memleak).
314 - new coroutines didn't get created with a zero flags field
315 (unknown impact).
316 - calling ->throw on a not-yet-started coroutine should now work
317 instead of being ignored.
318 - ->throw is now supported on Coro::State objects.
319 - clean up cctx creation code a bit.
320 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
321
3224.9 Sat Nov 8 17:45:27 CET 2008
323 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
324 - (libcoro) no longer leak threads in the experimental pthread backend,
325 also speed it up considerably.
326 - (libcoro) do not rely on makecontext passing void *'s unscathed.
327 - fix compiletime dependencies on libcoro in the Makefile.
328 - cctx_count wasn't always updated properly.
329 - Coro::State::cctx_stacksize wasn't applied correctly.
330 - new function Coro::State::cctx_max_idle.
331 - the default max number of idle C contexts is now 4.
332 - (libcoro) try harder to get _setjmp/_longjmp.
333 - (libcoro) cleanup and extend the libcoro API to officially
334 allow the creation of empty source contexts.
335 - very experimental workaround for the totally broken netbsd platform.
336 - tried to hack around openbsd bugs.
337
3384.804 Wed Nov 5 16:36:00 CET 2008
339 - Coro::Debug::new_unix_server would not create a non-blocking listening
340 socket, sometimes causing freezes.
341 - (libcoro) fix misaligned stack points for setjmp and assembly
342 methods, which can cause crashes on x86/x86_64 with a sufficiently
343 aggressive compiler.
344 - new function: Coro::Debug::new_tcp_server.
345 - move ->throw into the Coro class because it only works on coro objects.
346
3474.803 Mon Nov 3 17:16:12 CET 2008
348 - (libcoro) use a global asm statement to become independent of gcc
349 otpimisations for CORO_ASM (thanks to pippijn for the idea).
350 - try to workaround yet another broken bsd, this time dragonfly.
351
3524.802 Thu Oct 30 10:56:12 CET 2008
353 - support -fno-omit-frame-pointer on x86 with the assembly method.
354 - tune 01_unblock.t tests a bit.
355
3564.801 Wed Oct 22 18:33:37 CEST 2008
357 - improve readline speed for very long "lines".
358 - backport to 5.8.8.
359
3604.8 Thu Oct 2 13:34:40 CEST 2008
361 - new function Coro::AIO::aio_wait.
362 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
363 - greatly speed up and reduce memory usage of Coro::AIO requests.
364 - implement some other µ-optimisations.
365
3664.749 Mon Sep 29 14:40:12 CEST 2008
367 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
368
3694.748 Sat Sep 27 14:03:19 CEST 2008
370 - implement, but do not document, PerlIO::cede(granularity).
371 - Coro::Storable forgot to wrap Storable::pstore.
372 - work around the multitude of leaks and memory corruption
373 bugs in PerlIO::via by using our own C-level perliol. As a side
374 effect, Coro::Storable is now much, much, much faster.
375
3764.747 Tue Sep 23 01:59:41 CEST 2008
377 - fix a per-cv memleak (one empty array was leaked per
378 code reference).
379 - avoid a crash in coro->call|rss when the coroutine was already
380 destroyed (most noticably when using Coro::Debug::ps :)
381 - also protect *Storable::FILE.
382 - push up default storable granularity to 20ms.
383
3844.746 Sun Sep 21 03:22:20 CEST 2008
385 - be more insistent on locking Storable against reentrancy
386 in Coro::Storable.
387 - move swap_def?v and throw to Coro::State, as documented.
388
3894.745 Thu Jul 24 00:14:38 CEST 2008
390 - remove debugging code related to MgPV_nolen_const, also try to
391 make it compile with perl 5.8.6 (yes, apple apparently loves
392 outdated software). Reported by John S.
393
3944.744 Tue Jul 8 22:06:35 CEST 2008
395 - correctly provide default DIE/WARN handlers as documented.
396 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
397 implementations inside perl work fine for us.
398
3994.743 Mon Jun 16 00:21:57 CEST 2008
400 - when using Coro::EV without running EV::loop it could
401 result in busy-waiting for events, this has been fixed.
402 - reduce codesize and improve performance by using EV_DEFAULT_UC.
403
4044.742 Sat May 31 14:10:21 CEST 2008
405 - implement a workaround for (some) perl <5.8.8 versions.
406 - require EV 3.3+.
407
4084.741 Fri May 30 23:33:09 CEST 2008
409 - tell netbsd how utterly broken their imitation of an OS is
410 and refuse to build by default if pthreads are in use.
411 - switch to "s" method on all bsd's by default, as their ucontext
412 stuff seems just too broken.
413 - fix a bug in Coro::Select.
414
4154.74 Thu May 29 20:05:31 CEST 2008
416 - do not test Coro::LWP for lack of dependencies.
417 - do not test Coro::Select for lack of working perls.
418
4194.73 Thu May 29 2008
9 - fix a bug in Coro::EV which would cause it to block despite 420 - fix a bug in Coro::EV which would cause it to block despite
10 there being runnable coroutines. 421 there being runnable coroutines.
11 - sprinkle "no warnings" freely over everything, also suppress 422 - sprinkle "no warnings" freely over everything, also suppress
12 warnings for some other modules. 423 warnings for some other modules.
13 - fix typo in WSAEWOULDBLOCK. 424 - fix typo in WSAEWOULDBLOCK.

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