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Comparing Coro/Changes (file contents):
Revision 1.302 by root, Mon Dec 17 06:36:24 2007 UTC vs.
Revision 1.504 by root, Mon Jun 29 06:14:23 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)?
7 10
84.32 11 - deprecate Coro::Socket, document how to get ipv6 support via
12 AnyEvent::Socket instead.
13 - implement signal->wait ($cb) interface, similar to semaphores.
14 - work around SvOK not supporting getmagic, so we have to getmagic
15 to test for undef :/ (reported by Matthias Waldorf).
16 - load Coro::AnyEvent in all modules using AnyEvent.
17 - work around perl corrupting our internal data structures,
18 reported by Tokuhiro Matsuno.
19 - enable per-coroutine real and cpu time gathering
20 (Coro::State::enable_times).
21
225.14 Wed Jun 24 01:37:48 CEST 2009
23 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
24 as this seems to have been a difficult concept (poll, sleep, idle,
25 idle_upto).
26 - add Coro::AnyEvent::readable/writable functions.
27 - clarify Coro::EV/Event/AnyEvent manpages.
28 - free per-thread global scalars in the thread calling ->cancel, to
29 avoid crashes when $_, $@ etc., are magical but some of those
30 had already been freed.
31 - "unexperimentalise" the callback interface for Coro::Semaphore.
32 - speed up ready queue management/context switching by using a linked
33 list instead of an array (~5-10%).
34 - implement "watch" command in Coro::Debug shells.
35 - for fun, implement time-slicing as an example in the manpage.
36 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
37 Coro::Event, use the normal AnyEvent handling instead of dieing
38 (the same is true for Coro::Handle).
39 - properly document Coro::EV::timed_io_once.
40 - avoid unneccessary ->cancel calls in Coro::Handle.
41 - maybe make it work on mingw32 with win32 backend
42 (based on patch by Yasuhiro Matsumoto).
43
445.132 Fri May 29 09:00:39 CEST 2009
45 - do not keep a reference to the argument itself in
46 Coro::Semaphore::guard, as it could change later.
47 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
48 should support a prepare callback.
49
505.131 Mon Mar 16 23:20:37 CET 2009
51 - implement and document Coro->suspend, Coro->resume.
52 - fix Coro::Select implementation to not (often) close
53 the passed file descriptors (testcase provided by pippijn).
54
555.13 Mon Dec 15 21:51:42 CET 2008
56 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
57 - don't set diehook to C<undef> but instead to NULL, to avoid
58 spurious warnings.
59 - fix a lot of bugs in Coro::SemaphoreSet.
60 - Coro::SemaphoreSet will less often create a semaphore needlessly.
61 - add Coro::SemaphoreSet::count and wait methods.
62 - take advantage of the new Guard module.
63 - deprecate Coro::guard.
64 - try to fix the dreaded 01_unblock tests once more. I hate it when
65 testsuites need more fixing than the code they are supposed to test.
66 - croak in more cases when a required callback isn't resolvable.
67 - fix some minor issues in Coro::State->call/eval.
68 - use current coroutine context instead of a temporary one
69 when temporarily switching to another coroutine.
70 - do not call C-level on_destroy handlers during global destruction,
71 to avoid needless segfaults.
72
735.12 Sun Dec 7 13:30:38 CET 2008
74 - add default config for MirOS, which seems to be a bug-to-bug
75 compatible fork of openbsd ("world domination by releasing
76 openbsd cvs before the openbsd folks do it" or so :).
77 - free_padlist did destroy the names pad, not good, but didn't
78 seem to bother perl - this could fix issues such as eval ""
79 inside a function called from multiple coroutines.
80 - use a different method to detect destruction time.
81 - be more careful when freeing padlists just before global
82 destruction.
83 - fixed and expanded the call/cc example.
84 - renamed _terminate to _coro_run.
85 - new method Coro::Channel->shutdown.
86 - try pthreads on openbsd <4.4 (broken sigaltstack, will
87 pthreads fare better?).
88 - be less picky about destroying "a" running coroutine.
89
905.11 Tue Nov 25 21:49:05 CET 2008
91 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
92 working code with failed assertions, introducing more bugs than
93 it fixes, requiring elaborate workarounds :(
94
955.1 Mon Nov 24 08:54:59 CET 2008
96 - wrote a small introductory tutorial - Coro::Intro.
97 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
98 - Coro::Select did errornously dup the file descriptors
99 and didn't work with all AnyEvent backends.
100 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
101 LWP data transfers.
102 - disassociate c contexts from coro objects - this is agruably more
103 correct, but mostly allows sharing of cctxs between coro and state
104 objects, for added memory savings and speed increases.
105 - bumped $Coro::POOL_RSS up to 32kb by default.
106 - no longer set the optype to OP_CUSTOM, as B::* understandably
107 doesn't like this very much (and we *are* a type of entersub).
108 - implement state cloning, just to prove that call/cc can be done.
109 - automatically load Coro::AnyEvent in Coro::Handle.
110 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
111 do not have this method (and don't need it either).
112 - speed up generic anyevent methods in Coro::Handle by using rouse
113 callbacks.
114 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
115 others. It also makes the debugger happier, as you can trace
116 through the idle threads now.
117 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
118 - eg/event was pretty broken.
119 - better 5.8.6 compatibility.
120
1215.0 Thu Nov 20 10:35:05 CET 2008
122 - NEW ARCHITECTURE: use the latest 4.x version if you experience
123 stability issues.
124 - bump API version to 7 - all dependents must be recompiled.
125 - removed timed_* functions - they were not being used anyways
126 and should be replaced by a more generic mechanism -
127 and were annoying to support anyways :)
128 - removed SemaphoreSet's waiter method - use sem method instead.
129 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
130 - async_pool did free a scalar value twice
131 ("Attempt to unreference...").
132 - fix a longstanding bug where calling terminate on a coro that
133 was waiting for a semaphore that was just becoming available
134 would cause a deadlock (semaphore would get into a state where
135 it was available but waiters were still blocked).
136 - calling throw on a coroutine that is waiting for a semaphore will
137 no longer make it acquire the semaphore (and thus leak a count).
138 - perl's process emulation is now not even theoretically supported
139 anymore.
140 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
141 conversion of callback-style to blocking-style.
142 - new methods $coro->schedule_to and ->cede_to, to specifically
143 schedule or cede to a specific coroutine.
144 - new function Coro::Semaphore::wait.
145 - use named constants in Coro::Channel (Richard Hundt).
146 - directly patch the entersub opcode calling SLF functions (cede,
147 transfer and so on). this does speed up context switching, but
148 more importanly, it frees us from the hardcoded behaviour of
149 entersub, so we might actually be able to return something from
150 those functions and atcually create new ones.
151 - take advantage of __builtin_frame_address on gcc.
152 - expose THX in coroapi (not sure whether this was a wise decision,
153 as "threaded" perls are running at half speed anyways).
154 - implement execute_slf (schedule-like-function) interface that makes
155 it possible to implement schedule-like-functions in XS.
156 - use new SLF interface to massively speed up Coro::EV by roughly a
157 factor of two.
158 - used new SLF interface to massively speed up Coro::Semaphore by a
159 factor of three.
160 - used new SLF interface to speed up Coro::AIO by roughly a factor of
161 four and reduce its memory usage considerably.
162 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
163 for a nice speedup and vastly more correct behaviour. Also implement
164 a new method "sem" to get at the underlying semaphore object.
165 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
166 (in comparison) 20-40% speedup.
167 - used new SLF interface to reimplement Coro::Signal gaining
168 some unknown (because I was too lazy), but certain, speedup, and also
169 making signals reliable for the first time.
170 - used new SLF interface and other optimisations to speed up async_pool
171 by a factor of two. It also doesn't rely on perl's exception mechanism
172 to exit anymore. The overhead for terminating an async_pool, coro over
173 a normal async is now very small.
174 - sped up coroutine creation/destruction by 40%.
175 - forgot to include Coro/libcoro/README in the dist for all these years.
176 - work around a freebsd pthreads bug (manual testcancel is required as
177 pthread_cond_wait isn't a cancellation point on freebsd).
178 - use new rouse functions to speed up and simplify Coro::BDB.
179 - make "prefer perl native functions" work with threaded perls.
180 - condense Coro::Debug ps output, hint at v and w flags.
181 - (libcoro) lots of minor cleanups and portability improvements.
182
1834.914 Wed Nov 19 12:54:18 CET 2008
184 - fix a disastrous bug in the readline optimisation
185 introduced in 4.801.
186
1874.913 Sat Nov 15 07:58:28 CET 2008
188 - async_pool did free a scalar value twice
189 ("Attempt to unreference...").
190
1914.912 Thu Nov 13 18:31:23 CET 2008
192 - minor cleanups.
193 - use much larger stacks on linux and perl < 5.8.8.
194 - Coro::Debug::new_unix_server did not unlink the socket
195 when destroyed.
196
1974.911 Tue Nov 11 04:26:17 CET 2008
198 - "port" to threaded perls.
199
2004.91 Mon Nov 10 05:36:38 CET 2008
201 - the ->throw exception object no longer leaks.
202 - creating a new cctx leaked a scopestack entry (memleak).
203 - new coroutines didn't get created with a zero flags field
204 (unknown impact).
205 - calling ->throw on a not-yet-started coroutine should now work
206 instead of being ignored.
207 - ->throw is now supported on Coro::State objects.
208 - clean up cctx creation code a bit.
209 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
210
2114.9 Sat Nov 8 17:45:27 CET 2008
212 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
213 - (libcoro) no longer leak threads in the experimental pthread backend,
214 also speed it up considerably.
215 - (libcoro) do not rely on makecontext passing void *'s unscathed.
216 - fix compiletime dependencies on libcoro in the Makefile.
217 - cctx_count wasn't always updated properly.
218 - Coro::State::cctx_stacksize wasn't applied correctly.
219 - new function Coro::State::cctx_max_idle.
220 - the default max number of idle C contexts is now 4.
221 - (libcoro) try harder to get _setjmp/_longjmp.
222 - (libcoro) cleanup and extend the libcoro API to officially
223 allow the creation of empty source contexts.
224 - very experimental workaround for the totally broken netbsd platform.
225 - tried to hack around openbsd bugs.
226
2274.804 Wed Nov 5 16:36:00 CET 2008
228 - Coro::Debug::new_unix_server would not create a non-blocking listening
229 socket, sometimes causing freezes.
230 - (libcoro) fix misaligned stack points for setjmp and assembly
231 methods, which can cause crashes on x86/x86_64 with a sufficiently
232 aggressive compiler.
233 - new function: Coro::Debug::new_tcp_server.
234 - move ->throw into the Coro class because it only works on coro objects.
235
2364.803 Mon Nov 3 17:16:12 CET 2008
237 - (libcoro) use a global asm statement to become independent of gcc
238 otpimisations for CORO_ASM (thanks to pippijn for the idea).
239 - try to workaround yet another broken bsd, this time dragonfly.
240
2414.802 Thu Oct 30 10:56:12 CET 2008
242 - support -fno-omit-frame-pointer on x86 with the assembly method.
243 - tune 01_unblock.t tests a bit.
244
2454.801 Wed Oct 22 18:33:37 CEST 2008
246 - improve readline speed for very long "lines".
247 - backport to 5.8.8.
248
2494.8 Thu Oct 2 13:34:40 CEST 2008
250 - new function Coro::AIO::aio_wait.
251 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
252 - greatly speed up and reduce memory usage of Coro::AIO requests.
253 - implement some other µ-optimisations.
254
2554.749 Mon Sep 29 14:40:12 CEST 2008
256 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
257
2584.748 Sat Sep 27 14:03:19 CEST 2008
259 - implement, but do not document, PerlIO::cede(granularity).
260 - Coro::Storable forgot to wrap Storable::pstore.
261 - work around the multitude of leaks and memory corruption
262 bugs in PerlIO::via by using our own C-level perliol. As a side
263 effect, Coro::Storable is now much, much, much faster.
264
2654.747 Tue Sep 23 01:59:41 CEST 2008
266 - fix a per-cv memleak (one empty array was leaked per
267 code reference).
268 - avoid a crash in coro->call|rss when the coroutine was already
269 destroyed (most noticably when using Coro::Debug::ps :)
270 - also protect *Storable::FILE.
271 - push up default storable granularity to 20ms.
272
2734.746 Sun Sep 21 03:22:20 CEST 2008
274 - be more insistent on locking Storable against reentrancy
275 in Coro::Storable.
276 - move swap_def?v and throw to Coro::State, as documented.
277
2784.745 Thu Jul 24 00:14:38 CEST 2008
279 - remove debugging code related to MgPV_nolen_const, also try to
280 make it compile with perl 5.8.6 (yes, apple apparently loves
281 outdated software). Reported by John S.
282
2834.744 Tue Jul 8 22:06:35 CEST 2008
284 - correctly provide default DIE/WARN handlers as documented.
285 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
286 implementations inside perl work fine for us.
287
2884.743 Mon Jun 16 00:21:57 CEST 2008
289 - when using Coro::EV without running EV::loop it could
290 result in busy-waiting for events, this has been fixed.
291 - reduce codesize and improve performance by using EV_DEFAULT_UC.
292
2934.742 Sat May 31 14:10:21 CEST 2008
294 - implement a workaround for (some) perl <5.8.8 versions.
295 - require EV 3.3+.
296
2974.741 Fri May 30 23:33:09 CEST 2008
298 - tell netbsd how utterly broken their imitation of an OS is
299 and refuse to build by default if pthreads are in use.
300 - switch to "s" method on all bsd's by default, as their ucontext
301 stuff seems just too broken.
302 - fix a bug in Coro::Select.
303
3044.74 Thu May 29 20:05:31 CEST 2008
305 - do not test Coro::LWP for lack of dependencies.
306 - do not test Coro::Select for lack of working perls.
307
3084.73 Thu May 29 2008
309 - fix a bug in Coro::EV which would cause it to block despite
310 there being runnable coroutines.
311 - sprinkle "no warnings" freely over everything, also suppress
312 warnings for some other modules.
313 - fix typo in WSAEWOULDBLOCK.
314
3154.72 Sun May 25 05:14:36 CEST 2008
316 - tweak META.yaml a bit, unfortunately, there is no documented way
317 to have optional dependencies with CPAN. doh :(
318 - avoid running some tests on windows because they would fail due to
319 perl bug (broken fork, broken pipes...).
320 - work around perl on windows bugs where perl returns undocumented
321 error codes for sysread, syswrite etc. by taking advantage
322 of AnyEvent's workaround for that problem.
323 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
324 a common perl implementation bug on windows.
325 - use unix domain sockets in testsuite to work around
326 common perl implementation bugs on widows (they are emulated by
327 tcp sockets on windows. ugh.)
328
3294.71 Sat May 24 20:01:27 CEST 2008
330 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
331 - take advantage of async name resolution of AnyEvent::Util.
332 - work around brutal inet_aton override in Coro::LWP.
333 - take advantage of the readyhook in Coro::EV, for smoother
334 scheduling.
335
3364.7 Sun May 11 00:32:19 CEST 2008
337 - completely reworked the Coro manpage.
338 - added Coro::AnyEvent, generic event loop integration.
339 - implement cancel, ready and kill commands in Coro::Debug.
340 - document find_coro in Coro::Debug.
341 - incompatible change: rename has_stack to has_cctx.
342 - Coro::AIO and Coro::BDB no longer force event model detection,
343 use AnyEvent::AIO and AnyEvent::BDB.
344
3454.6 Sat Apr 26 10:05:14 CEST 2008
346 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
347 by the Coro module. It was a mistake to have it in the first place.
348 - (experimental) support for activestate perl 5.10 (method "w").
349 - (experimental) support for strawberry perl (method "a").
350 - coro_sigelem_set did not return a value although it had to,
351 actual impact unknown.
352
3534.51 Mon Apr 14 13:28:27 CEST 2008
354 - make it compile again on 5.8.
355
3564.50 Thu Apr 10 09:43:17 CEST 2008
357 - I did it twice! (see 4.49).
358
3594.49 Sun Apr 6 21:23:31 CEST 2008
360 - grr, instead of compiling the recent changes on 5.10 only they
361 were compiled on 5.8 only.
362
3634.48 Sun Apr 6 20:36:46 CEST 2008
364 - allow coroutine switches during eval's under 5.10.x, as it seems
365 the parser is a per-interpreter option now, so this is safe
366 (this might fix the odd crashing bug).
367 - drop support for 5.9.x versions: they are dead, jim.
368
3694.47 Sun Apr 6 00:37:52 CEST 2008
370 - force cctx allocation on API calls: we know we need to force one
371 and gcc actually manages to confuse our heuristic nowadays,
372 leading to crashes and worse.
373 - document force_cctx.
374
3754.46 Fri Apr 4 22:05:43 CEST 2008
376 - upgrade libcoro, resulting in pthread-backend (which was only created
377 to fulfill the rules of the programming languages shootout).
378
3794.45 Thu Mar 13 11:55:36 CET 2008
380 - fix a file leaking bug in eg/mhyttpd that would allow
381 downloading of any file (reported by oesi).
382 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
383 (also add testcase).
384 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
385 apparently having loads of fun with that).
386 - implement $state->swap_defsv, ->swap_defav and document ->throw.
387
3884.4 Wed Feb 13 16:44:29 CET 2008
389 - only assume .cfi pseudo isns exist on GNU/Linux.
390 - add get_timed method to Coro::Channels.
391 - fixed Coro::Debug manpage.
392 - perl 5.11 compatbility improvement based on patch by
393 Andreas König.
394
3954.37 Sun Jan 20 11:25:23 CET 2008
396 - soften the check for an active parser for perl 5.10 (avoiding
397 "Coro::State::transfer called while parsing" in many cases).
398
3994.36 Sun Jan 13 10:53:56 CET 2008
400 - reset diehook when terminating from an async_pool as to not
401 trigger any __DIE__ handlers.
402
4034.35 Sun Jan 13 04:14:13 CET 2008
404 - "bt" debug command now displays any exceptions
405 from longmess and also skips the innermost
406 stackframes, giving more useufl output.
407 - allow backtraces in coroutines blocked in Coro::EV,
408 at a <1% speed hit.
409 - handle localising of $SIG{__WARN__} and __DIE__
410 properly (with a proper amount of dirty hacking).
411
4124.34 Sat Dec 22 17:49:53 CET 2007
413 - upgrade to EV version 2.0 API.
414
4154.33 Mon Dec 17 08:36:12 CET 2007
416 - make Coro::AIO etc. loadable in the absence of EV.
417
4184.32 Mon Dec 17 07:46:02 CET 2007
9 - majorly improved Coro::Handle's performance with Coro::EV. 419 - majorly improved Coro::Handle's performance with Coro::EV.
10 - implemented the until now mythical Coro::BDB module. 420 - implemented the until now mythical Coro::BDB module.
421 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
11 422
124.31 Wed Dec 5 12:32:39 CET 2007 4234.31 Wed Dec 5 12:32:39 CET 2007
13 - remove warn statement form Coro::Util. 424 - remove warn statement form Coro::Util.
14 425
154.3 Tue Dec 4 20:33:14 CET 2007 4264.3 Tue Dec 4 20:33:14 CET 2007

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