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Comparing Coro/Changes (file contents):
Revision 1.94 by pcg, Fri May 14 13:25:08 2004 UTC vs.
Revision 1.563 by root, Thu May 12 23:24:27 2011 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2
3TODO: should explore PerlIO::coroaio (perl leaks like hell).
4TODO: channel->maxsize(newsize)?
5TODO: http://www.microsoft.com/msj/archive/s2ce.aspx
6
7TODO:mg_virtual check
8TODO:detah on refcnt
9TODO:slf_xx_yy=>slf_yy_xx
10 - croak when a coro that is being cancelled tries to block
11 (e.g. while executing a guard block), instead of crashing or
12 deadlocking.
13 - use a more robust and also faster method to identify Coro::State
14 objects - speeds up everything a bit.
15 - implement a Coro->safe_cancel method that might fail, but
16 cancels in a "safer" way if it succeeds.
17 - implement Coro->cancel in XS for a 20% speed improvement, and to
18 be able to implement mutual cancellation.
19 - speed up context switches by a percent or two by more efficiently
20 allocating context stack entries.
21 - implement Coro->join and Coro->on_destroy in XS for a speedup and
22 a reduction in memory use.
23 - cancelling a coro while it itself is cancelling another coro is
24 now supported and working, instead of triggering an assertion.
25 - be a bit more crash-resistant when calling (buggy) on_destroy
26 callbacks (best effort).
27 - move on_destroy into the slf_frame, to allow extension slf
28 functions to have destructors.
29 - get rid if coro refcounting - simply crash in other interpreter
30 threads by nulling the pointers on clone.
31
325.372 Wed Feb 23 06:14:30 CET 2011
33 - apparently mingw doesn't provide a working gettimeofday, try to
34 work around that by relying on Time::HiRes (indirectly brought to
35 my attention by Max Maischein).
36 - fix some portability issues when Time::HiRes was used.
37
385.371 Mon Feb 21 14:36:08 CET 2011
39 - backport to windows process emulation code again.
40
415.37 Sat Feb 19 07:49:44 CET 2011
42 - add a big "Coro thread life cycle" section to "man Coro".
43 - try a tentative workaround against the breakage that 5.13 has
44 introduced without depreciation period. sigh.
45 - no longer use Time::HiRes if gettimeofday is available, which
46 saves quite a lot of memory.
47
485.36 Sun Feb 13 05:33:41 CET 2011
49 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
50 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
51 method call.
52 - undocument Coro::Timer::sleep and obsolete whole module.
53 - optimise Coro::Timer::timeout memory and cpu usage.
54 - slightly updated Coro::Intro for recent changes.
55 - do not initialise PL_dirty anymore.
56
575.25 Thu Nov 11 01:08:39 CET 2010
58 - try a different approach on netbsd - netbsd 5 finally has marginally
59 working pthreads, but still broken ucontext/sigaltstack.
60 - openbsd 4.8 finally got their act together, Coro works out of the box
61 with asm, setjmp and pthreads (no change, just informational).
62
635.24 Sat Oct 23 11:27:12 CEST 2010
64 - port to the EV 4.0 API.
65 - work around bugs in mingw32, making strawberry perl work
66 out of the box.
67 - correctly modify Coro::AIO function prototypes
68 so that they reflect the "no optional parameters" rule.
69 - "ported" libcoro to C++.
70
715.23 Mon May 17 18:50:42 CEST 2010
72 - be more resistant to ordering changes when initialising
73 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
74 Waldorf).
75 - document that perl 5.12 deliberately removed support for cloning.
76
775.22 Wed Apr 14 03:55:35 CEST 2010
78 - correctly return udnef on errors in Coro::Handle::read/write
79 (testcase by Marc Mims).
80 - convert Coro::Util into a "perl compatibility wrapper" - the functions
81 are less useful now, but are drop-in replacements for existing
82 functions, listing better alternatives in the documentation. This also
83 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
84 with Coro::Util::inet_aton.
85 - do not override $Coro::idle unconditionally in Coro.pm, as other
86 modules could have provided their own idle coro already
87 (for exmaple, Coro::AnyEvent).
88 - fix Coro::Util::gethost* functions.
89 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
90
915.21 Wed Dec 16 07:19:51 CET 2009
92 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
93 together.
94 - add some examples on how to combine other event loops with Coro in
95 Coro::AnyEvent, and how to run it (and not to block). Seems to be
96 the most common source of confusion.
97 - try to catch people naively blocking in an event callback.
98 - work around the perl filehandle bug issue in conjunction with
99 older common::sense (as indirectly pointed out by ZSystem).
100 - clarify the "not from signal handlers" section.
101
1025.2 Sun Oct 4 14:54:24 CEST 2009
103 - Coro::Storable destroyed the prototypes of the functions it wrapped.
104 - export rouse_cb and rouse_wait by default now.
105 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
106 - new method $state->swap_sv.
107 - added section on "windows process emulation" to the manpage,
108 after a not-so-fruitful (nor-friendly) "discussion" with chip
109 salzenberg (discussion implies arguments, but his only arguments
110 were ad-hominems, one wonders why he started it in the first
111 place). I hope this explains it well enough for him to understand,
112 and maybe well enough for others to understand.
113 - use common::sense everywhere now.
114 - idle callbacks are no longer supported, use idle coros instead.
115 - print a thread listing when a deadlock is detected.
116
1175.17 Sat Aug 22 23:09:31 CEST 2009
118 - work around a bug in the perl debugger causing crashes
119 when running under the debugger by marking _pool_handler as nodebug.
120 - speed up Coro::async considerably.
121 - try some hacks to get netbsd to work "more often" - their broken
122 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
123 - convert Coro to AE 5.0 API.
124
1255.162 Tue Jul 28 04:04:03 CEST 2009
126 - perl 5.8.2 is now minimum requirement.
127 - skip t/19_handle.t on broken windows perls.
128
1295.161 Wed Jul 22 04:47:38 CEST 2009
130 - Coro::AnyEvent::poll could have a different prototype when EV was
131 used as backend (analyzed by Tatsuhiko Miyagawa).
132 - Coro::AnyEvent errornously initialised the event loop when loaded,
133 not on demand.
134 - try to workaround rare */t/01_unblock.t failures.
135
1365.16 Tue Jul 21 01:44:37 CEST 2009
137 - Coro::AnyEvent failed to hook into the event loop
138 when no threads had been readied between detecting
139 the event loop and actually running it.
140 - considerably speed up Coro::Select by taking avdantage
141 of AnyEvent > 4.8 and some other optimisations.
142 - implement paragraph readline mode in Coro::Handle
143 (based on patches by Zsbán Ambrus).
144 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
145 and analyzed by Yasuhiro MATSUMOTO).
146 - clarified libcoro license and copyright.
147 - someone stole my EXTRA_META!!!
148 - implement Coro::Select::patch_pp_sselect and it's brother,
149 for hardcode select overriding.
150
1515.151 Mon Jul 6 05:41:57 CEST 2009
152 - backport to windows process emulation code again (patch by
153 Yasuhiro MATSUMOTO).
154 - slightly update Coro::MakeMaker.
155
1565.15 Tue Jun 30 10:28:06 CEST 2009
157 - deprecate Coro::Socket, document how to get ipv6 support via
158 AnyEvent::Socket instead.
159 - implement signal->wait ($cb) interface, similar to semaphores.
160 - work around SvOK not supporting getmagic, so we have to getmagic
161 to test for undef :/ (reported by Matthias Waldorf).
162 - load Coro::AnyEvent in all modules using AnyEvent.
163 - work around perl corrupting our internal data structures,
164 reported by Tokuhiro Matsuno.
165 - enable per-coroutine real and cpu time gathering
166 (Coro::State::enable_times).
167
1685.14 Wed Jun 24 01:37:48 CEST 2009
169 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
170 as this seems to have been a difficult concept (poll, sleep, idle,
171 idle_upto).
172 - add Coro::AnyEvent::readable/writable functions.
173 - clarify Coro::EV/Event/AnyEvent manpages.
174 - free per-thread global scalars in the thread calling ->cancel, to
175 avoid crashes when $_, $@ etc., are magical but some of those
176 had already been freed.
177 - "unexperimentalise" the callback interface for Coro::Semaphore.
178 - speed up ready queue management/context switching by using a linked
179 list instead of an array (~5-10%).
180 - implement "watch" command in Coro::Debug shells.
181 - for fun, implement time-slicing as an example in the manpage.
182 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
183 Coro::Event, use the normal AnyEvent handling instead of dieing
184 (the same is true for Coro::Handle).
185 - properly document Coro::EV::timed_io_once.
186 - avoid unneccessary ->cancel calls in Coro::Handle.
187 - maybe make it work on mingw32 with win32 backend
188 (based on patch by Yasuhiro Matsumoto).
189
1905.132 Fri May 29 09:00:39 CEST 2009
191 - do not keep a reference to the argument itself in
192 Coro::Semaphore::guard, as it could change later.
193 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
194 should support a prepare callback.
195
1965.131 Mon Mar 16 23:20:37 CET 2009
197 - implement and document Coro->suspend, Coro->resume.
198 - fix Coro::Select implementation to not (often) close
199 the passed file descriptors (testcase provided by pippijn).
200
2015.13 Mon Dec 15 21:51:42 CET 2008
202 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
203 - don't set diehook to C<undef> but instead to NULL, to avoid
204 spurious warnings.
205 - fix a lot of bugs in Coro::SemaphoreSet.
206 - Coro::SemaphoreSet will less often create a semaphore needlessly.
207 - add Coro::SemaphoreSet::count and wait methods.
208 - take advantage of the new Guard module.
209 - deprecate Coro::guard.
210 - try to fix the dreaded 01_unblock tests once more. I hate it when
211 testsuites need more fixing than the code they are supposed to test.
212 - croak in more cases when a required callback isn't resolvable.
213 - fix some minor issues in Coro::State->call/eval.
214 - use current coroutine context instead of a temporary one
215 when temporarily switching to another coroutine.
216 - do not call C-level on_destroy handlers during global destruction,
217 to avoid needless segfaults.
218
2195.12 Sun Dec 7 13:30:38 CET 2008
220 - add default config for MirOS, which seems to be a bug-to-bug
221 compatible fork of openbsd ("world domination by releasing
222 openbsd cvs before the openbsd folks do it" or so :).
223 - free_padlist did destroy the names pad, not good, but didn't
224 seem to bother perl - this could fix issues such as eval ""
225 inside a function called from multiple coroutines.
226 - use a different method to detect destruction time.
227 - be more careful when freeing padlists just before global
228 destruction.
229 - fixed and expanded the call/cc example.
230 - renamed _terminate to _coro_run.
231 - new method Coro::Channel->shutdown.
232 - try pthreads on openbsd <4.4 (broken sigaltstack, will
233 pthreads fare better?).
234 - be less picky about destroying "a" running coroutine.
235
2365.11 Tue Nov 25 21:49:05 CET 2008
237 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
238 working code with failed assertions, introducing more bugs than
239 it fixes, requiring elaborate workarounds :(
240
2415.1 Mon Nov 24 08:54:59 CET 2008
242 - wrote a small introductory tutorial - Coro::Intro.
243 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
244 - Coro::Select did errornously dup the file descriptors
245 and didn't work with all AnyEvent backends.
246 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
247 LWP data transfers.
248 - disassociate c contexts from coro objects - this is agruably more
249 correct, but mostly allows sharing of cctxs between coro and state
250 objects, for added memory savings and speed increases.
251 - bumped $Coro::POOL_RSS up to 32kb by default.
252 - no longer set the optype to OP_CUSTOM, as B::* understandably
253 doesn't like this very much (and we *are* a type of entersub).
254 - implement state cloning, just to prove that call/cc can be done.
255 - automatically load Coro::AnyEvent in Coro::Handle.
256 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
257 do not have this method (and don't need it either).
258 - speed up generic anyevent methods in Coro::Handle by using rouse
259 callbacks.
260 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
261 others. It also makes the debugger happier, as you can trace
262 through the idle threads now.
263 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
264 - eg/event was pretty broken.
265 - better 5.8.6 compatibility.
266
2675.0 Thu Nov 20 10:35:05 CET 2008
268 - NEW ARCHITECTURE: use the latest 4.x version if you experience
269 stability issues.
270 - bump API version to 7 - all dependents must be recompiled.
271 - removed timed_* functions - they were not being used anyways
272 and should be replaced by a more generic mechanism -
273 and were annoying to support anyways :)
274 - removed SemaphoreSet's waiter method - use sem method instead.
275 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
276 - async_pool did free a scalar value twice
277 ("Attempt to unreference...").
278 - fix a longstanding bug where calling terminate on a coro that
279 was waiting for a semaphore that was just becoming available
280 would cause a deadlock (semaphore would get into a state where
281 it was available but waiters were still blocked).
282 - calling throw on a coroutine that is waiting for a semaphore will
283 no longer make it acquire the semaphore (and thus leak a count).
284 - perl's process emulation is now not even theoretically supported
285 anymore.
286 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
287 conversion of callback-style to blocking-style.
288 - new methods $coro->schedule_to and ->cede_to, to specifically
289 schedule or cede to a specific coroutine.
290 - new function Coro::Semaphore::wait.
291 - use named constants in Coro::Channel (Richard Hundt).
292 - directly patch the entersub opcode calling SLF functions (cede,
293 transfer and so on). this does speed up context switching, but
294 more importanly, it frees us from the hardcoded behaviour of
295 entersub, so we might actually be able to return something from
296 those functions and atcually create new ones.
297 - take advantage of __builtin_frame_address on gcc.
298 - expose THX in coroapi (not sure whether this was a wise decision,
299 as "threaded" perls are running at half speed anyways).
300 - implement execute_slf (schedule-like-function) interface that makes
301 it possible to implement schedule-like-functions in XS.
302 - use new SLF interface to massively speed up Coro::EV by roughly a
303 factor of two.
304 - used new SLF interface to massively speed up Coro::Semaphore by a
305 factor of three.
306 - used new SLF interface to speed up Coro::AIO by roughly a factor of
307 four and reduce its memory usage considerably.
308 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
309 for a nice speedup and vastly more correct behaviour. Also implement
310 a new method "sem" to get at the underlying semaphore object.
311 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
312 (in comparison) 20-40% speedup.
313 - used new SLF interface to reimplement Coro::Signal gaining
314 some unknown (because I was too lazy), but certain, speedup, and also
315 making signals reliable for the first time.
316 - used new SLF interface and other optimisations to speed up async_pool
317 by a factor of two. It also doesn't rely on perl's exception mechanism
318 to exit anymore. The overhead for terminating an async_pool, coro over
319 a normal async is now very small.
320 - sped up coroutine creation/destruction by 40%.
321 - forgot to include Coro/libcoro/README in the dist for all these years.
322 - work around a freebsd pthreads bug (manual testcancel is required as
323 pthread_cond_wait isn't a cancellation point on freebsd).
324 - use new rouse functions to speed up and simplify Coro::BDB.
325 - make "prefer perl native functions" work with threaded perls.
326 - condense Coro::Debug ps output, hint at v and w flags.
327 - (libcoro) lots of minor cleanups and portability improvements.
328
3294.914 Wed Nov 19 12:54:18 CET 2008
330 - fix a disastrous bug in the readline optimisation
331 introduced in 4.801.
332
3334.913 Sat Nov 15 07:58:28 CET 2008
334 - async_pool did free a scalar value twice
335 ("Attempt to unreference...").
336
3374.912 Thu Nov 13 18:31:23 CET 2008
338 - minor cleanups.
339 - use much larger stacks on linux and perl < 5.8.8.
340 - Coro::Debug::new_unix_server did not unlink the socket
341 when destroyed.
342
3434.911 Tue Nov 11 04:26:17 CET 2008
344 - "port" to threaded perls.
345
3464.91 Mon Nov 10 05:36:38 CET 2008
347 - the ->throw exception object no longer leaks.
348 - creating a new cctx leaked a scopestack entry (memleak).
349 - new coroutines didn't get created with a zero flags field
350 (unknown impact).
351 - calling ->throw on a not-yet-started coroutine should now work
352 instead of being ignored.
353 - ->throw is now supported on Coro::State objects.
354 - clean up cctx creation code a bit.
355 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
356
3574.9 Sat Nov 8 17:45:27 CET 2008
358 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
359 - (libcoro) no longer leak threads in the experimental pthread backend,
360 also speed it up considerably.
361 - (libcoro) do not rely on makecontext passing void *'s unscathed.
362 - fix compiletime dependencies on libcoro in the Makefile.
363 - cctx_count wasn't always updated properly.
364 - Coro::State::cctx_stacksize wasn't applied correctly.
365 - new function Coro::State::cctx_max_idle.
366 - the default max number of idle C contexts is now 4.
367 - (libcoro) try harder to get _setjmp/_longjmp.
368 - (libcoro) cleanup and extend the libcoro API to officially
369 allow the creation of empty source contexts.
370 - very experimental workaround for the totally broken netbsd platform.
371 - tried to hack around openbsd bugs.
372
3734.804 Wed Nov 5 16:36:00 CET 2008
374 - Coro::Debug::new_unix_server would not create a non-blocking listening
375 socket, sometimes causing freezes.
376 - (libcoro) fix misaligned stack points for setjmp and assembly
377 methods, which can cause crashes on x86/x86_64 with a sufficiently
378 aggressive compiler.
379 - new function: Coro::Debug::new_tcp_server.
380 - move ->throw into the Coro class because it only works on coro objects.
381
3824.803 Mon Nov 3 17:16:12 CET 2008
383 - (libcoro) use a global asm statement to become independent of gcc
384 otpimisations for CORO_ASM (thanks to pippijn for the idea).
385 - try to workaround yet another broken bsd, this time dragonfly.
386
3874.802 Thu Oct 30 10:56:12 CET 2008
388 - support -fno-omit-frame-pointer on x86 with the assembly method.
389 - tune 01_unblock.t tests a bit.
390
3914.801 Wed Oct 22 18:33:37 CEST 2008
392 - improve readline speed for very long "lines".
393 - backport to 5.8.8.
394
3954.8 Thu Oct 2 13:34:40 CEST 2008
396 - new function Coro::AIO::aio_wait.
397 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
398 - greatly speed up and reduce memory usage of Coro::AIO requests.
399 - implement some other µ-optimisations.
400
4014.749 Mon Sep 29 14:40:12 CEST 2008
402 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
403
4044.748 Sat Sep 27 14:03:19 CEST 2008
405 - implement, but do not document, PerlIO::cede(granularity).
406 - Coro::Storable forgot to wrap Storable::pstore.
407 - work around the multitude of leaks and memory corruption
408 bugs in PerlIO::via by using our own C-level perliol. As a side
409 effect, Coro::Storable is now much, much, much faster.
410
4114.747 Tue Sep 23 01:59:41 CEST 2008
412 - fix a per-cv memleak (one empty array was leaked per
413 code reference).
414 - avoid a crash in coro->call|rss when the coroutine was already
415 destroyed (most noticably when using Coro::Debug::ps :)
416 - also protect *Storable::FILE.
417 - push up default storable granularity to 20ms.
418
4194.746 Sun Sep 21 03:22:20 CEST 2008
420 - be more insistent on locking Storable against reentrancy
421 in Coro::Storable.
422 - move swap_def?v and throw to Coro::State, as documented.
423
4244.745 Thu Jul 24 00:14:38 CEST 2008
425 - remove debugging code related to MgPV_nolen_const, also try to
426 make it compile with perl 5.8.6 (yes, apple apparently loves
427 outdated software). Reported by John S.
428
4294.744 Tue Jul 8 22:06:35 CEST 2008
430 - correctly provide default DIE/WARN handlers as documented.
431 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
432 implementations inside perl work fine for us.
433
4344.743 Mon Jun 16 00:21:57 CEST 2008
435 - when using Coro::EV without running EV::loop it could
436 result in busy-waiting for events, this has been fixed.
437 - reduce codesize and improve performance by using EV_DEFAULT_UC.
438
4394.742 Sat May 31 14:10:21 CEST 2008
440 - implement a workaround for (some) perl <5.8.8 versions.
441 - require EV 3.3+.
442
4434.741 Fri May 30 23:33:09 CEST 2008
444 - tell netbsd how utterly broken their imitation of an OS is
445 and refuse to build by default if pthreads are in use.
446 - switch to "s" method on all bsd's by default, as their ucontext
447 stuff seems just too broken.
448 - fix a bug in Coro::Select.
449
4504.74 Thu May 29 20:05:31 CEST 2008
451 - do not test Coro::LWP for lack of dependencies.
452 - do not test Coro::Select for lack of working perls.
453
4544.73 Thu May 29 2008
455 - fix a bug in Coro::EV which would cause it to block despite
456 there being runnable coroutines.
457 - sprinkle "no warnings" freely over everything, also suppress
458 warnings for some other modules.
459 - fix typo in WSAEWOULDBLOCK.
460
4614.72 Sun May 25 05:14:36 CEST 2008
462 - tweak META.yaml a bit, unfortunately, there is no documented way
463 to have optional dependencies with CPAN. doh :(
464 - avoid running some tests on windows because they would fail due to
465 perl bug (broken fork, broken pipes...).
466 - work around perl on windows bugs where perl returns undocumented
467 error codes for sysread, syswrite etc. by taking advantage
468 of AnyEvent's workaround for that problem.
469 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
470 a common perl implementation bug on windows.
471 - use unix domain sockets in testsuite to work around
472 common perl implementation bugs on widows (they are emulated by
473 tcp sockets on windows. ugh.)
474
4754.71 Sat May 24 20:01:27 CEST 2008
476 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
477 - take advantage of async name resolution of AnyEvent::Util.
478 - work around brutal inet_aton override in Coro::LWP.
479 - take advantage of the readyhook in Coro::EV, for smoother
480 scheduling.
481
4824.7 Sun May 11 00:32:19 CEST 2008
483 - completely reworked the Coro manpage.
484 - added Coro::AnyEvent, generic event loop integration.
485 - implement cancel, ready and kill commands in Coro::Debug.
486 - document find_coro in Coro::Debug.
487 - incompatible change: rename has_stack to has_cctx.
488 - Coro::AIO and Coro::BDB no longer force event model detection,
489 use AnyEvent::AIO and AnyEvent::BDB.
490
4914.6 Sat Apr 26 10:05:14 CEST 2008
492 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
493 by the Coro module. It was a mistake to have it in the first place.
494 - (experimental) support for activestate perl 5.10 (method "w").
495 - (experimental) support for strawberry perl (method "a").
496 - coro_sigelem_set did not return a value although it had to,
497 actual impact unknown.
498
4994.51 Mon Apr 14 13:28:27 CEST 2008
500 - make it compile again on 5.8.
501
5024.50 Thu Apr 10 09:43:17 CEST 2008
503 - I did it twice! (see 4.49).
504
5054.49 Sun Apr 6 21:23:31 CEST 2008
506 - grr, instead of compiling the recent changes on 5.10 only they
507 were compiled on 5.8 only.
508
5094.48 Sun Apr 6 20:36:46 CEST 2008
510 - allow coroutine switches during eval's under 5.10.x, as it seems
511 the parser is a per-interpreter option now, so this is safe
512 (this might fix the odd crashing bug).
513 - drop support for 5.9.x versions: they are dead, jim.
514
5154.47 Sun Apr 6 00:37:52 CEST 2008
516 - force cctx allocation on API calls: we know we need to force one
517 and gcc actually manages to confuse our heuristic nowadays,
518 leading to crashes and worse.
519 - document force_cctx.
520
5214.46 Fri Apr 4 22:05:43 CEST 2008
522 - upgrade libcoro, resulting in pthread-backend (which was only created
523 to fulfill the rules of the programming languages shootout).
524
5254.45 Thu Mar 13 11:55:36 CET 2008
526 - fix a file leaking bug in eg/mhyttpd that would allow
527 downloading of any file (reported by oesi).
528 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
529 (also add testcase).
530 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
531 apparently having loads of fun with that).
532 - implement $state->swap_defsv, ->swap_defav and document ->throw.
533
5344.4 Wed Feb 13 16:44:29 CET 2008
535 - only assume .cfi pseudo isns exist on GNU/Linux.
536 - add get_timed method to Coro::Channels.
537 - fixed Coro::Debug manpage.
538 - perl 5.11 compatbility improvement based on patch by
539 Andreas König.
540
5414.37 Sun Jan 20 11:25:23 CET 2008
542 - soften the check for an active parser for perl 5.10 (avoiding
543 "Coro::State::transfer called while parsing" in many cases).
544
5454.36 Sun Jan 13 10:53:56 CET 2008
546 - reset diehook when terminating from an async_pool as to not
547 trigger any __DIE__ handlers.
548
5494.35 Sun Jan 13 04:14:13 CET 2008
550 - "bt" debug command now displays any exceptions
551 from longmess and also skips the innermost
552 stackframes, giving more useufl output.
553 - allow backtraces in coroutines blocked in Coro::EV,
554 at a <1% speed hit.
555 - handle localising of $SIG{__WARN__} and __DIE__
556 properly (with a proper amount of dirty hacking).
557
5584.34 Sat Dec 22 17:49:53 CET 2007
559 - upgrade to EV version 2.0 API.
560
5614.33 Mon Dec 17 08:36:12 CET 2007
562 - make Coro::AIO etc. loadable in the absence of EV.
563
5644.32 Mon Dec 17 07:46:02 CET 2007
565 - majorly improved Coro::Handle's performance with Coro::EV.
566 - implemented the until now mythical Coro::BDB module.
567 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
568
5694.31 Wed Dec 5 12:32:39 CET 2007
570 - remove warn statement form Coro::Util.
571
5724.3 Tue Dec 4 20:33:14 CET 2007
573 - calls to the idle function could cause stack corruption
574 when the stack changed.
575 - do no longer rely on the presence of EV::DNS if EV is used
576 (because it is gone), but instead take avdantage of EV::ADNS
577 if available.
578 - add ($) prototypes to all functions in Coro::Storable.
579 - use a conventional (safer) idle callback in Coro::EV.
580 - do accept quickly in Coro::Debug to avoid endless loops.
581
5824.22 Fri Nov 30 16:04:04 CET 2007
583 - really use optimised versions for Event and EV in Coro::Util
584 and Coro::Handle.
585
5864.21 Sun Nov 25 10:48:59 CET 2007
587 - fix a spurious memory read.
588 - Coro::EV no longer keeps the eventloop "alive".
589
5904.2 Fri Nov 9 20:47:05 CET 2007
591 - enable/disable tracing from a new coroutine, not a pooled one.
592 - fix a memleak in Coro::Event.
593 - removed killall call from fork_eval.
594 - made sure store_fd is already loaded so that fork_eval
595 does not have to parse autoload in each subprocess.
596 - only use assembly method if -O switch is in $Config{optimize}.
597 - add (optional) Coro::EV module, so far the best event loop module
598 directly supported by Coro.
599 - if the event model is EV, use EV::DNS to resolve
600 stuff in Coro::Util.
601 - don't get confused by multiple event notifications in Coro::Handle.
602 - initial support for EV (libevent interface).
603 - require Event and EV using configure_requires, to force their existance.
604
6054.13 Wed Oct 24 07:26:45 CEST 2007
606 - add Coro::Storable::blocking_thaw.
607 - use a vastly more complicated technique to localise
608 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
609 - use a coroutine for the idle callback Coro::Event,
610 instead of running Event in the current coroutine context.
611 This also catches recursive invocations.
612 - actually report fork errors in gethostbyname and inet_aton.
613
6144.11 Thu Oct 11 02:40:24 CEST 2007
615 - port to threaded perls.
616
6174.1 Thu Oct 11 02:38:16 CEST 2007
618 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
619 be local to each coro (see Coro::State).
620 - incompatible change: for very deep reasons, cede and cede_notself
621 cannot return anything, so nothing will be returned.
622 - possibly bring back 5.10 compatibility (untested).
623 - work around stupid (and wrong) warning on 5.10 :(.
624 - overlay the saved state over the context stack. This saves
625 a few hundred bytes per coroutine on average and also
626 speeds up context switching a bit.
627 - further tune default stack sizes.
628 - (more) correctly calculate stack usage in coro_rss.
629 - Coro::Storable::blocking_* did not properly lock
630 resulting in races between coroutines.
631 - added Coro::Storable::guard.
632 - stopping to trace a coroutine could destroy the cctx of
633 an unrelated coroutine.
634 - explain the relationship between Perl and C coroutines in
635 more detail in Coro::State.
636 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
637 causing a fork per resolve. This also affected Coro::Socket.
638 - switch to a separate stack in $coro->call/eval to avoid
639 invalidating pointers.
640
6414.03 Sat Oct 6 21:24:00 CEST 2007
642 - added Coro::throw method.
643 - minor code cleanups.
644
6454.02 Sat Oct 6 02:36:47 CEST 2007
646 - fix a very minor per-coroutine memleak (a single codereference).
647 - fixed a bug where the currently in-use c context would be freed
648 prematurely (can happen only when programs change the stacksize
649 or use tracing).
650 - tracing can no longer keep a coro alive after it terminated.
651 - do static branch prediction in the common path for gcc. gives
652 about 2-5% speed improvement here.
653
6544.01 Fri Oct 5 22:10:49 CEST 2007
655 - instead of recreating *a* standard output handle we simply
656 use STDOUT, which is faster and hopefully more robust.
657
6584.0 Fri Oct 5 12:56:00 CEST 2007
659 - incompatibly changed Coro::Storable::freeze.
660 - major new feature: added Coro::Debug, for interactive coroutine
661 debugging, tracing and much more.
662 - major bug fix: unbelievable, but true: $_, $/ and many other
663 "saved" variables actually weren't being saved. This has been fixed,
664 of course, while increasing performance while losing all the save
665 flags.
666 - save flags are gone, and all the api functions dealing with them.
667 - added Coro::Semaphore::adjust.
668 - added Coro::Util::fork_eval.
669 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
670 - added Coro::killall.
671 - reduce initial stack sizes to allow for "micro-coroutines".
672 - better async_pool resource management, moved parts of async_pool
673 handling to XS (major speed improvement).
674 - actually croak before modifying important data structures.
675 - refuse to transfer while compiling.
676 - possibly support eval EXPR better now.
677 - enable assembly per default on linux+bsd x86+amd64.
678 - all internal members were renamed _something for easier subclassing.
679 - many minor tweaks.
680
6813.63 Wed May 16 14:10:06 CEST 2007
682 - implement handcoded assembly for x86/amd64 SVR ABI.
683
6843.62 Fri Apr 27 21:36:06 CEST 2007
685 - upgrade libcoro (which might set unwind info correctly).
686 - change default on linux to setjmp/longjmp.
687
6883.61 Thu Apr 19 12:36:18 CEST 2007
689 - Coro::Storable caused an endless loop when thawing invalid
690 pst's sometimes.
691 - use a Semaphore in Coro::Storable, as Storable doesn't
692 seem to be reentrant (although it is documented to
693 be threadsafe...).
694 - fix Coro::Signal to bring back the original unreliable
695 but stateful semantics.
696 - fixed a lot of typos in Coro.pm (patch submitted by David
697 Steinbrunner, which applied flawlessly).
698
6993.6 Sat Apr 14 17:13:31 CEST 2007
700 - added some bugfixes to get eg/myhttpd working again.
701 - added Coro::Storable for often-cede'ing freeze/thaw.
702 - try to do a clean exit when a coroutine calls exit
703 (EXPERIMENTAL).
704 - got rid of indirect call through _coro_init.
705 - updated the partly antique examples in eg/ to
706 work again and be a bit less magic, too.
707 - fixed Coro::Signal semantics to work as documented again.
708
7093.55 Sun Mar 25 01:20:47 CET 2007
710 - add SAVE_DEFFH to save the default filehandle and enable
711 it by default.
712 - finally move socket-operations from Coro::Socket to Coro::Handle
713 to be able to unblock foreign sockets.
714 - add Coro::State::save_also and guarded_save.
715 - add count accessor to Coro::Semaphore.
716 - add Coro::State::cctx_stacksize.
717 - just for the fun of it, do not rely on implicit context,
718 which can dramatically improve performance, but people
719 using windows-process-emulation perls do not care much about
720 performance.
721
7223.51 Sun Mar 4 14:18:04 CET 2007
723 - fixed a problem when you weakened references to Coro::State's
724 (patch by Yuval Kogman).
725
7263.501 Wed Feb 28 12:44:07 CET 2007
727 - rename some global symbols as macosx from hell redefines
728 them without asking.
729
7303.5 Tue Feb 13 20:22:53 CET 2007
731 - do AnyEvent model detection earlier, avoiding problems
732 caused by first using AnyEvent and later Coro::Event.
733 - implement and document Coro::Event event objects.
734 - fix a potential problem in Coro::Event causing crashes.
735 - initialise PL_comppad when creating a new coroutine,
736 avoids crashes on early coro destruction.
737
7383.41 Mon Jan 22 19:19:49 CET 2007
739 - readline on Coro::Handle did not support undefined $/,
740 nor did it deliver partial lines on EOF or error.
741 - implement malloc fallback for stack allocation because
742 stupid broken idiotic OSX has a stupid broken
743 idiotic fits-the-whole-os mmap "implementation" and
744 my dick feels longer if Coro is portable even to
745 obsolete platforms.
746
7473.4 Fri Jan 19 21:52:54 CET 2007
748 - remove t/09_timer.t, as it isn't really testing much
749 but was rather flaky in practise.
750 - async_pool coro would keep arguments and callback alive until
751 it was reused.
752 - cancellation of a coroutine could cause spurious idle calls
753 in cede_notself.
754
7553.3 Sat Jan 6 03:45:00 CET 2007
756 - implement $coro->on_destroy.
757 - Coro::Event blocking semantics have been changed,
758 documented and - hopefully - improved.
759 - fix nice adding, not subtracting, from priority.
760 - fix ->prio and api_is_ready (patch by Mark Hinds).
761 - fixed an assert ("... == prev__cctx->idle_te")
762 that could errronously trigger.
763 - fix various large and small memleaks.
764 - use a (hopefully) more stable cancel implementation
765 that immediately frees the coroutine data.
766 - cede/cede_notself return a status now.
767 - added Coro::guard function.
768 - added a global coroutine pool for jobs (on my machine,
769 I can create and execute 48k simple coros/s with async,
770 and 128k coros with async_pool).
771 - Coro::AIO now uses the coroutine priority as io priority.
772
7733.2 Fri Dec 22 05:07:09 CET 2006
774 - improve portability to slightly older perls.
775 - use cleaner coroutine destruction.
776 - simplify configuration for users.
777 - optionally (unrecommended) prefer perl functions over
778 their coro replacements.
779
7803.11 Tue Dec 5 13:11:24 CET 2006
781 - fixed some bogus assert's, but as perl.h disables assert even
782 without NDEBUG (thank you very much), not too many people should
783 notice (that did include myself). Andreas König noticed, though :)
784 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
785 it. Also noticed by Andreas König :)
786 - save/restore tainted status.
787 - verified to pass the testsuite on my 5.9.5.
788
7893.1 Mon Dec 4 23:03:40 CET 2006
790 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
791 - incompatible change: transfer flags are now per-state.
792 - give a better error message on deadlock.
793 - document Coro::nready.
794 - enhanced testsuite.
795
7963.01 Sun Dec 3 23:47:42 CET 2006
797 - forgot to include Coro::Timer.
798
7993.0 Sun Dec 3 22:57:25 CET 2006
800 - the "FINALLY COMPLETELY STABLE" release (coming soon:
801 the "FAMOUS LAST WORDS" release).
802 - implement a new stack sharing algorithm, which uses a stack
803 pool (size currently hardcoded).
804 - make stack sharing mandatory (it no longer uses a heuristic).
805 - eval/die no longer cause weird problems under heavy use.
806 - Coro::Event could cause livelocks if it was used but
807 no Coro::Event watchers were used.
808 - Coro::Event now uses asynccheck as prepare does not
809 check for changed watchers.
810 - Coro::Event allows multiple waiting coros and will wake up one
811 per event.
812 - Coro::Event should be cleaner and more efficient now.
813 - new utility function Coro::unblock_sub.
814 - document the sad fact that Event is no longer reentrant.
815 - putting a coroutine into the ready queue twice could under
816 some circumstances lead to stack corruption.
817 - minor incompatibility: subclassing Coro::State is supported
818 directly now without going through a _coro_state member.
819 - state/coro switching is much faster now.
820 - very minor optimisations and code/documentation cleanup.
821 - avoid problems due to compiler inlining.
822 - removed timers from Coro::Timer -> use AnyEvent instead.
823 - replaced Coro::idle coroutine by (cleaner) idle handler.
824 - updated to newest libcoro.
825 - implement enhanced support for valgrind.
826 - implement is_ready and return value for ready.
827 - removed Coro::Cont, it was a misnomer (it's generators),
828 and it was somewhat annoying to get it right. Will come back
829 if somebody asks for it :)
830 - many ->wait methods and Coro::Event could return
831 spuriously without the event having happened.
832
8332.5 Tue Nov 7 12:22:33 CET 2006
834 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
835 use AnyEvent, moved them to Coro/.
836 - added Coro::LWP which contains all the uglyness required to
837 make LWP non-blocking.
838 - should work with perl 5.9.x now (Andreas König made me do it).
839 - fixed another bug in Coro::Select when the timeout was undef.
840 - reuse PL_start_env for all coros, saves some memory per coroutine.
841 - manage PL_top_env differently, hopefully to avoid panic: top_env.
842 - timeout argument was not properly used in Coro::Socket.
843 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
844 - emulate undocumented(!) functionality of IO::Socket required
845 by LWP(!!).
846 - updated eg/lwp to work with newer lwp's.
847 - remove "FATAL: uncaught exception" prefix. Coroutines that die
848 kill the whole process, just as exceptions in the main "coroutine"
849 did already.
850
8512.1 Wed Nov 1 23:01:13 CET 2006
852 - fix a long-standing bug in Coro::Select where select with
853 zero timeout would instead change the current default filehandle.
854 - use a simpler and hopefully more robust way to clone padlists
855 (uses less memory and a perl function instead of our own).
856 - coro can now create a stack guard area on many architectures.
857 - Coro::AIO properly reexports additional functions from IO::AIO.
858 - updated libcoro with a workaround for OS X,
859 pach and testing by Michael Schwern.
860
8612.0 Tue Oct 24 05:47:17 CEST 2006
862 - support additional aio requests in Coro::AIO.
863
8641.9 (never properly released due to a glitch)
865
8661.8 Thu Feb 2 00:59:06 CET 2006
867 - applied suggested patch by SAMV to avoid problems during stupid
868 mark & sweep gc run.
869 - applied patch by Scott Walters for 5.9.3 compatibility.
870
8711.7 Tue Dec 27 01:41:58 CET 2005
872 - added Coro::AIO, a thin wrapper around IO::AIO.
873 - improved Makefile.PL explanations.
874
8751.6 Mon Dec 12 21:30:05 CET 2005
876 - additionally save PM_curpm might fix as-of-yet
877 unseen problems with regex matches being attributed to the
878 wrong package.
879 - add t/10_bugs.t, which currently checks against imho broken
880 perls that use 0.26MB of stack space per Perl_magic_get
881 invocation (newer linuxes) as opposed to the 0.0002MB perl
882 normally uses.
883 - make stacksize configurable for the ultimate debian experience.
884
8851.51 Mon Dec 12 18:48:36 CET 2005
886 - remove debugging warn() accidentally left in Coro::Select.
887
8881.5 Tue Nov 29 13:32:44 CET 2005
889 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
890 - fix Coro::Select 'select'.
891 - strict'ify some modules.
892 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
893 - use XSLoader in selected modules.
894 - remove some 5.6 compatibility cruft.
895
8961.4 Tue Sep 6 00:11:05 CEST 2005
897 - libcoro did not take into account the trampoline on amd64,
898 when 'l'inux method was used.
899
9001.31 Tue Aug 30 23:31:33 CEST 2005
901 - some portability fixes/workarounds.
902
9031.3 Sat Aug 20 03:08:56 CEST 2005
904 - no code changes. module seems to work fine.
905 - improve Coro::State docs, remove reference to nonexisting
906 Coro::State::flush method.
907 - no longer autodetect windows, present it as an option instead.
908
9091.2 Mon May 16 02:00:55 CEST 2005
910 - included libcoro.c earlier in State.xs, might improve portability.
911 - use a faster and possibly more stable Coro::Cont implementation.
912 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
913 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
914 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
915
9161.11 Thu Mar 3 18:00:52 CET 2005
917 - change of contact address.
918
9191.1 Tue Feb 22 20:51:16 CET 2005
920 - support [l]inux method on amd64.
921 - allow some context switches while compiling/eval'ing.
922
9231.0 Tue Aug 10 03:47:27 CEST 2004
924 - Event 0.89 fixes the bug again.
925 - fix the remaining(??) memleak. I didn't free the cache-AV for
926 padlists, so one AV per created anon-sub leaked.
2 927
30.97 Fri May 14 15:23:32 CEST 2004 9280.97 Fri May 14 15:23:32 CEST 2004
4 - remove stupid gcc extension that was an experiment only anyway. 929 - remove stupid gcc extension that was an experiment only anyway.
5 930
60.96 Thu May 13 18:09:29 CEST 2004 9310.96 Thu May 13 18:09:29 CEST 2004
7 - tell people if they have yet anothe rbroken Event variant. 932 - tell people if they have yet another broken Event variant.
8 - made Coro to work _better_ with threads (it seems that, as long 933 - made Coro to work _better_ with threads (it seems that, as long
9 as you use Coros in one thread only everything will work fine. 934 as you use Coros in one thread only everything will work fine.
10 Looking at the perl source the problem might be missing locking 935 Looking at the perl source the problem might be missing locking
11 between Coro and some perl internal routines. That's not easily 936 between Coro and some perl internal routines. That's not easily
12 fixable). 937 fixable).

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