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Comparing Coro/Changes (file contents):
Revision 1.160 by root, Mon Nov 27 02:01:44 2006 UTC vs.
Revision 1.393 by root, Fri Nov 7 20:27:47 2008 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
33.0 3TODO: should explore PerlIO::coroaio (perl leaks like hell).
4TODO: maybe implement a default message channel, very much like Erlang's
5 actor model (which is cool in a lot of important aspects (failures!),
6 but very lacking in others (higher level ipc)).
7
85.0
9 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
10 - (libcoro) no longer leak threads in the experimental pthread backend,
11 also speed it up considerably.
12 - fix compiletime dependencies on libcoro in the Makefile.
13 - cctx_count wasn't always updated properly.
14 - (libcoro) cleanup and extend the libcoro API to officialy
15 allow creation of empty source contexts.
16 - Coro::State::cctx_stacksize wasn't applied correctly.
17 - new function Coro::State::cctx_max_idle.
18 - the default max number of idle C contexts is now 4.
19
204.804 Wed Nov 5 16:36:00 CET 2008
21 - Coro::Debug::new_unix_server would not create a non-blocking listening
22 socket, sometimes causing freezes.
23 - (libcoro) fix misaligned stack points for setjmp and assembly
24 methods, which can cause crashes on x86/x86_64 with a sufficiently
25 aggressive compiler.
26 - new function: Coro::Debug::new_tcp_server.
27 - move ->throw into the Coro class because it only works on coro objects.
28
294.803 Mon Nov 3 17:16:12 CET 2008
30 - (libcoro) use a global asm statement to become independent of gcc
31 otpimisations for CORO_ASM (thanks to pippijn for the idea).
32 - try to workaround yet another broken bsd, this time dragonfly.
33
344.802 Thu Oct 30 10:56:12 CET 2008
35 - support -fno-omit-frame-pointer on x86 with the assembly method.
36 - tune 01_unblock.t tests a bit.
37
384.801 Wed Oct 22 18:33:37 CEST 2008
39 - improve readline speed for very long "lines".
40 - backport to 5.8.8.
41
424.8 Thu Oct 2 13:34:40 CEST 2008
43 - new function Coro::AIO::aio_wait.
44 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
45 - greatly speed up and reduce memory usage of Coro::AIO requests.
46 - implement some other µ-optimisations.
47
484.749 Mon Sep 29 14:40:12 CEST 2008
49 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
50
514.748 Sat Sep 27 14:03:19 CEST 2008
52 - implement, but do not document, PerlIO::cede(granularity).
53 - Coro::Storable forgot to wrap Storable::pstore.
54 - work around the multitude of leaks and memory corruption
55 bugs in PerlIO::via by using our own C-level perliol. As a side
56 effect, Coro::Storable is now much, much, much faster.
57
584.747 Tue Sep 23 01:59:41 CEST 2008
59 - fix a per-cv memleak (one empty array was leaked per
60 code reference).
61 - avoid a crash in coro->call|rss when the coroutine was already
62 destroyed (most noticably when using Coro::Debug::ps :)
63 - also protect *Storable::FILE.
64 - push up default storable granularity to 20ms.
65
664.746 Sun Sep 21 03:22:20 CEST 2008
67 - be more insistent on locking Storable against reentrancy
68 in Coro::Storable.
69 - move swap_def?v and throw to Coro::State, as documented.
70
714.745 Thu Jul 24 00:14:38 CEST 2008
72 - remove debugging code related to MgPV_nolen_const, also try to
73 make it compile with perl 5.8.6 (yes, apple apparently loves
74 outdated software). Reported by John S.
75
764.744 Tue Jul 8 22:06:35 CEST 2008
77 - correctly provide default DIE/WARN handlers as documented.
78 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
79 implementations inside perl work fine for us.
80
814.743 Mon Jun 16 00:21:57 CEST 2008
82 - when using Coro::EV without running EV::loop it could
83 result in busy-waiting for events, this has been fixed.
84 - reduce codesize and improve performance by using EV_DEFAULT_UC.
85
864.742 Sat May 31 14:10:21 CEST 2008
87 - implement a workaround for (some) perl <5.8.8 versions.
88 - require EV 3.3+.
89
904.741 Fri May 30 23:33:09 CEST 2008
91 - tell netbsd how utterly broken their imitation of an OS is
92 and refuse to build by default if pthreads are in use.
93 - switch to "s" method on all bsd's by default, as their ucontext
94 stuff seems just too broken.
95 - fix a bug in Coro::Select.
96
974.74 Thu May 29 20:05:31 CEST 2008
98 - do not test Coro::LWP for lack of dependencies.
99 - do not test Coro::Select for lack of working perls.
100
1014.73 Thu May 29 2008
102 - fix a bug in Coro::EV which would cause it to block despite
103 there being runnable coroutines.
104 - sprinkle "no warnings" freely over everything, also suppress
105 warnings for some other modules.
106 - fix typo in WSAEWOULDBLOCK.
107
1084.72 Sun May 25 05:14:36 CEST 2008
109 - tweak META.yaml a bit, unfortunately, there is no documented way
110 to have optional dependencies with CPAN. doh :(
111 - avoid running some tests on windows because they would fail due to
112 perl bug (broken fork, broken pipes...).
113 - work around perl on windows bugs where perl returns undocumented
114 error codes for sysread, syswrite etc. by taking advantage
115 of AnyEvent's workaround for that problem.
116 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
117 a common perl implementation bug on windows.
118 - use unix domain sockets in testsuite to work around
119 common perl implementation bugs on widows (they are emulated by
120 tcp sockets on windows. ugh.)
121
1224.71 Sat May 24 20:01:27 CEST 2008
123 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
124 - take advantage of async name resolution of AnyEvent::Util.
125 - work around brutal inet_aton override in Coro::LWP.
126 - take advantage of the readyhook in Coro::EV, for smoother
127 scheduling.
128
1294.7 Sun May 11 00:32:19 CEST 2008
130 - completely reworked the Coro manpage.
131 - added Coro::AnyEvent, generic event loop integration.
132 - implement cancel, ready and kill commands in Coro::Debug.
133 - document find_coro in Coro::Debug.
134 - incompatible change: rename has_stack to has_cctx.
135 - Coro::AIO and Coro::BDB no longer force event model detection,
136 use AnyEvent::AIO and AnyEvent::BDB.
137
1384.6 Sat Apr 26 10:05:14 CEST 2008
139 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
140 by the Coro module. It was a mistake to have it in the first place.
141 - (experimental) support for activestate perl 5.10 (method "w").
142 - (experimental) support for strawberry perl (method "a").
143 - coro_sigelem_set did not return a value although it had to,
144 actual impact unknown.
145
1464.51 Mon Apr 14 13:28:27 CEST 2008
147 - make it compile again on 5.8.
148
1494.50 Thu Apr 10 09:43:17 CEST 2008
150 - I did it twice! (see 4.49).
151
1524.49 Sun Apr 6 21:23:31 CEST 2008
153 - grr, instead of compiling the recent changes on 5.10 only they
154 were compiled on 5.8 only.
155
1564.48 Sun Apr 6 20:36:46 CEST 2008
157 - allow coroutine switches during eval's under 5.10.x, as it seems
158 the parser is a per-interpreter option now, so this is safe
159 (this might fix the odd crashing bug).
160 - drop support for 5.9.x versions: they are dead, jim.
161
1624.47 Sun Apr 6 00:37:52 CEST 2008
163 - force cctx allocation on API calls: we know we need to force one
164 and gcc actually manages to confuse our heuristic nowadays,
165 leading to crashes and worse.
166 - document force_cctx.
167
1684.46 Fri Apr 4 22:05:43 CEST 2008
169 - upgrade libcoro, resulting in pthread-backend (which was only created
170 to fulfill the rules of the programming languages shootout).
171
1724.45 Thu Mar 13 11:55:36 CET 2008
173 - fix a file leaking bug in eg/mhyttpd that would allow
174 downloading of any file (reported by oesi).
175 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
176 (also add testcase).
177 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
178 apparently having loads of fun with that).
179 - implement $state->swap_defsv, ->swap_defav and document ->throw.
180
1814.4 Wed Feb 13 16:44:29 CET 2008
182 - only assume .cfi pseudo isns exist on GNU/Linux.
183 - add get_timed method to Coro::Channels.
184 - fixed Coro::Debug manpage.
185 - perl 5.11 compatbility improvement based on patch by
186 Andreas König.
187
1884.37 Sun Jan 20 11:25:23 CET 2008
189 - soften the check for an active parser for perl 5.10 (avoiding
190 "Coro::State::transfer called while parsing" in many cases).
191
1924.36 Sun Jan 13 10:53:56 CET 2008
193 - reset diehook when terminating from an async_pool as to not
194 trigger any __DIE__ handlers.
195
1964.35 Sun Jan 13 04:14:13 CET 2008
197 - "bt" debug command now displays any exceptions
198 from longmess and also skips the innermost
199 stackframes, giving more useufl output.
200 - allow backtraces in coroutines blocked in Coro::EV,
201 at a <1% speed hit.
202 - handle localising of $SIG{__WARN__} and __DIE__
203 properly (with a proper amount of dirty hacking).
204
2054.34 Sat Dec 22 17:49:53 CET 2007
206 - upgrade to EV version 2.0 API.
207
2084.33 Mon Dec 17 08:36:12 CET 2007
209 - make Coro::AIO etc. loadable in the absence of EV.
210
2114.32 Mon Dec 17 07:46:02 CET 2007
212 - majorly improved Coro::Handle's performance with Coro::EV.
213 - implemented the until now mythical Coro::BDB module.
214 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
215
2164.31 Wed Dec 5 12:32:39 CET 2007
217 - remove warn statement form Coro::Util.
218
2194.3 Tue Dec 4 20:33:14 CET 2007
220 - calls to the idle function could cause stack corruption
221 when the stack changed.
222 - do no longer rely on the presence of EV::DNS if EV is used
223 (because it is gone), but instead take avdantage of EV::ADNS
224 if available.
225 - add ($) prototypes to all functions in Coro::Storable.
226 - use a conventional (safer) idle callback in Coro::EV.
227 - do accept quickly in Coro::Debug to avoid endless loops.
228
2294.22 Fri Nov 30 16:04:04 CET 2007
230 - really use optimised versions for Event and EV in Coro::Util
231 and Coro::Handle.
232
2334.21 Sun Nov 25 10:48:59 CET 2007
234 - fix a spurious memory read.
235 - Coro::EV no longer keeps the eventloop "alive".
236
2374.2 Fri Nov 9 20:47:05 CET 2007
238 - enable/disable tracing from a new coroutine, not a pooled one.
239 - fix a memleak in Coro::Event.
240 - removed killall call from fork_eval.
241 - made sure store_fd is already loaded so that fork_eval
242 does not have to parse autoload in each subprocess.
243 - only use assembly method if -O switch is in $Config{optimize}.
244 - add (optional) Coro::EV module, so far the best event loop module
245 directly supported by Coro.
246 - if the event model is EV, use EV::DNS to resolve
247 stuff in Coro::Util.
248 - don't get confused by multiple event notifications in Coro::Handle.
249 - initial support for EV (libevent interface).
250 - require Event and EV using configure_requires, to force their existance.
251
2524.13 Wed Oct 24 07:26:45 CEST 2007
253 - add Coro::Storable::blocking_thaw.
254 - use a vastly more complicated technique to localise
255 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
256 - use a coroutine for the idle callback Coro::Event,
257 instead of running Event in the current coroutine context.
258 This also catches recursive invocations.
259 - actually report fork errors in gethostbyname and inet_aton.
260
2614.11 Thu Oct 11 02:40:24 CEST 2007
262 - port to threaded perls.
263
2644.1 Thu Oct 11 02:38:16 CEST 2007
265 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
266 be local to each coro (see Coro::State).
267 - incompatible change: for very deep reasons, cede and cede_notself
268 cannot return anything, so nothing will be returned.
269 - possibly bring back 5.10 compatibility (untested).
270 - work around stupid (and wrong) warning on 5.10 :(.
271 - overlay the saved state over the context stack. This saves
272 a few hundred bytes per coroutine on average and also
273 speeds up context switching a bit.
274 - further tune default stack sizes.
275 - (more) correctly calculate stack usage in coro_rss.
276 - Coro::Storable::blocking_* did not properly lock
277 resulting in races between coroutines.
278 - added Coro::Storable::guard.
279 - stopping to trace a coroutine could destroy the cctx of
280 an unrelated coroutine.
281 - explain the relationship between Perl and C coroutines in
282 more detail in Coro::State.
283 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
284 causing a fork per resolve. This also affected Coro::Socket.
285 - switch to a separate stack in $coro->call/eval to avoid
286 invalidating pointers.
287
2884.03 Sat Oct 6 21:24:00 CEST 2007
289 - added Coro::throw method.
290 - minor code cleanups.
291
2924.02 Sat Oct 6 02:36:47 CEST 2007
293 - fix a very minor per-coroutine memleak (a single codereference).
294 - fixed a bug where the currently in-use c context would be freed
295 prematurely (can happen only when programs change the stacksize
296 or use tracing).
297 - tracing can no longer keep a coro alive after it terminated.
298 - do static branch prediction in the common path for gcc. gives
299 about 2-5% speed improvement here.
300
3014.01 Fri Oct 5 22:10:49 CEST 2007
302 - instead of recreating *a* standard output handle we simply
303 use STDOUT, which is faster and hopefully more robust.
304
3054.0 Fri Oct 5 12:56:00 CEST 2007
306 - incompatibly changed Coro::Storable::freeze.
307 - major new feature: added Coro::Debug, for interactive coroutine
308 debugging, tracing and much more.
309 - major bug fix: unbelievable, but true: $_, $/ and many other
310 "saved" variables actually weren't being saved. This has been fixed,
311 of course, while increasing performance while losing all the save
312 flags.
313 - save flags are gone, and all the api functions dealing with them.
314 - added Coro::Semaphore::adjust.
315 - added Coro::Util::fork_eval.
316 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
317 - added Coro::killall.
318 - reduce initial stack sizes to allow for "micro-coroutines".
319 - better async_pool resource management, moved parts of async_pool
320 handling to XS (major speed improvement).
321 - actually croak before modifying important data structures.
322 - refuse to transfer while compiling.
323 - possibly support eval EXPR better now.
324 - enable assembly per default on linux+bsd x86+amd64.
325 - all internal members were renamed _something for easier subclassing.
326 - many minor tweaks.
327
3283.63 Wed May 16 14:10:06 CEST 2007
329 - implement handcoded assembly for x86/amd64 SVR ABI.
330
3313.62 Fri Apr 27 21:36:06 CEST 2007
332 - upgrade libcoro (which might set unwind info correctly).
333 - change default on linux to setjmp/longjmp.
334
3353.61 Thu Apr 19 12:36:18 CEST 2007
336 - Coro::Storable caused an endless loop when thawing invalid
337 pst's sometimes.
338 - use a Semaphore in Coro::Storable, as Storable doesn't
339 seem to be reentrant (although it is documented to
340 be threadsafe...).
341 - fix Coro::Signal to bring back the original unreliable
342 but stateful semantics.
343 - fixed a lot of typos in Coro.pm (patch submitted by David
344 Steinbrunner, which applied flawlessly).
345
3463.6 Sat Apr 14 17:13:31 CEST 2007
347 - added some bugfixes to get eg/myhttpd working again.
348 - added Coro::Storable for often-cede'ing freeze/thaw.
349 - try to do a clean exit when a coroutine calls exit
350 (EXPERIMENTAL).
351 - got rid of indirect call through _coro_init.
352 - updated the partly antique examples in eg/ to
353 work again and be a bit less magic, too.
354 - fixed Coro::Signal semantics to work as documented again.
355
3563.55 Sun Mar 25 01:20:47 CET 2007
357 - add SAVE_DEFFH to save the default filehandle and enable
358 it by default.
359 - finally move socket-operations from Coro::Socket to Coro::Handle
360 to be able to unblock foreign sockets.
361 - add Coro::State::save_also and guarded_save.
362 - add count accessor to Coro::Semaphore.
363 - add Coro::State::cctx_stacksize.
364 - just for the fun of it, do not rely on implicit context,
365 which can dramatically improve performance, but people
366 using windows-process-emulation perls do not care much about
367 performance.
368
3693.51 Sun Mar 4 14:18:04 CET 2007
370 - fixed a problem when you weakened references to Coro::State's
371 (patch by Yuval Kogman).
372
3733.501 Wed Feb 28 12:44:07 CET 2007
374 - rename some global symbols as macosx from hell redefines
375 them without asking.
376
3773.5 Tue Feb 13 20:22:53 CET 2007
378 - do AnyEvent model detection earlier, avoiding problems
379 caused by first using AnyEvent and later Coro::Event.
380 - implement and document Coro::Event event objects.
381 - fix a potential problem in Coro::Event causing crashes.
382 - initialise PL_comppad when creating a new coroutine,
383 avoids crashes on early coro destruction.
384
3853.41 Mon Jan 22 19:19:49 CET 2007
386 - readline on Coro::Handle did not support undefined $/,
387 nor did it deliver partial lines on EOF or error.
388 - implement malloc fallback for stack allocation because
389 stupid broken idiotic OSX has a stupid broken
390 idiotic fits-the-whole-os mmap "implementation" and
391 my dick feels longer if Coro is portable even to
392 obsolete platforms.
393
3943.4 Fri Jan 19 21:52:54 CET 2007
395 - remove t/09_timer.t, as it isn't really testing much
396 but was rather flaky in practise.
397 - async_pool coro would keep arguments and callback alive until
398 it was reused.
399 - cancellation of a coroutine could cause spurious idle calls
400 in cede_notself.
401
4023.3 Sat Jan 6 03:45:00 CET 2007
403 - implement $coro->on_destroy.
404 - Coro::Event blocking semantics have been changed,
405 documented and - hopefully - improved.
406 - fix nice adding, not subtracting, from priority.
407 - fix ->prio and api_is_ready (patch by Mark Hinds).
408 - fixed an assert ("... == prev__cctx->idle_te")
409 that could errronously trigger.
410 - fix various large and small memleaks.
411 - use a (hopefully) more stable cancel implementation
412 that immediately frees the coroutine data.
413 - cede/cede_notself return a status now.
414 - added Coro::guard function.
415 - added a global coroutine pool for jobs (on my machine,
416 I can create and execute 48k simple coros/s with async,
417 and 128k coros with async_pool).
418 - Coro::AIO now uses the coroutine priority as io priority.
419
4203.2 Fri Dec 22 05:07:09 CET 2006
421 - improve portability to slightly older perls.
422 - use cleaner coroutine destruction.
423 - simplify configuration for users.
424 - optionally (unrecommended) prefer perl functions over
425 their coro replacements.
426
4273.11 Tue Dec 5 13:11:24 CET 2006
428 - fixed some bogus assert's, but as perl.h disables assert even
429 without NDEBUG (thank you very much), not too many people should
430 notice (that did include myself). Andreas König noticed, though :)
431 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
432 it. Also noticed by Andreas König :)
433 - save/restore tainted status.
434 - verified to pass the testsuite on my 5.9.5.
435
4363.1 Mon Dec 4 23:03:40 CET 2006
437 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
438 - incompatible change: transfer flags are now per-state.
439 - give a better error message on deadlock.
440 - document Coro::nready.
441 - enhanced testsuite.
442
4433.01 Sun Dec 3 23:47:42 CET 2006
444 - forgot to include Coro::Timer.
445
4463.0 Sun Dec 3 22:57:25 CET 2006
447 - the "FINALLY COMPLETELY STABLE" release (coming soon:
448 the "FAMOUS LAST WORDS" release).
4 - reimplement a new stack sharing algorithm. 449 - implement a new stack sharing algorithm, which uses a stack
450 pool (size currently hardcoded).
5 - make stack sharing mandatory (it no longer uses a heuristic). 451 - make stack sharing mandatory (it no longer uses a heuristic).
6 - eval/die no longer cause weird problems under heavy use. 452 - eval/die no longer cause weird problems under heavy use.
7 - Coro::Event could cause livelocks if it was used but 453 - Coro::Event could cause livelocks if it was used but
8 Event watchers were used directly. 454 no Coro::Event watchers were used.
455 - Coro::Event now uses asynccheck as prepare does not
456 check for changed watchers.
457 - Coro::Event allows multiple waiting coros and will wake up one
458 per event.
9 - Coro::Event should be cleaner and more efficient now. 459 - Coro::Event should be cleaner and more efficient now.
460 - new utility function Coro::unblock_sub.
461 - document the sad fact that Event is no longer reentrant.
462 - putting a coroutine into the ready queue twice could under
463 some circumstances lead to stack corruption.
10 - minor incompatibility: subclassing is supported directly now 464 - minor incompatibility: subclassing Coro::State is supported
11 without going through a _coro_state member. 465 directly now without going through a _coro_state member.
12 - state/coro switching is much faster now. 466 - state/coro switching is much faster now.
13 - very minor optimisations and code/documentation cleanup. 467 - very minor optimisations and code/documentation cleanup.
14 - avoid problems due to compiler inlining. 468 - avoid problems due to compiler inlining.
15 - removed timers from Coro::Timer -> use AnyEvent instead. 469 - removed timers from Coro::Timer -> use AnyEvent instead.
16 - replaced Coro::idle coroutine by (cleaner) idle handler. 470 - replaced Coro::idle coroutine by (cleaner) idle handler.
17 - updated to newest libcoro. 471 - updated to newest libcoro.
18 - implement enhanced support for valgrind. 472 - implement enhanced support for valgrind.
473 - implement is_ready and return value for ready.
474 - removed Coro::Cont, it was a misnomer (it's generators),
475 and it was somewhat annoying to get it right. Will come back
476 if somebody asks for it :)
477 - many ->wait methods and Coro::Event could return
478 spuriously without the event having happened.
19 479
202.5 Tue Nov 7 12:22:33 CET 2006 4802.5 Tue Nov 7 12:22:33 CET 2006
21 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket 481 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
22 use AnyEvent, moved them to Coro/. 482 use AnyEvent, moved them to Coro/.
23 - added Coro::LWP which contains all the uglyness required to 483 - added Coro::LWP which contains all the uglyness required to

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