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Comparing Coro/Changes (file contents):
Revision 1.160 by root, Mon Nov 27 02:01:44 2006 UTC vs.
Revision 1.386 by root, Mon Nov 3 16:05:37 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
84.803
9 - use a global asm statement to become independent of gcc otpimisations
10 for CORO_ASM (thanks to pippijn for the idea).
11
124.802 Thu Oct 30 10:56:12 CET 2008
13 - support -fno-omit-frame-pointer on x86 with the assembly method.
14 - tune 01_unblock.t tests a bit.
15
164.801 Wed Oct 22 18:33:37 CEST 2008
17 - improve readline speed for very long "lines".
18 - backport to 5.8.8.
19
204.8 Thu Oct 2 13:34:40 CEST 2008
21 - new function Coro::AIO::aio_wait.
22 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
23 - greatly speed up and reduce memory usage of Coro::AIO requests.
24 - implement some other µ-optimisations.
25
264.749 Mon Sep 29 14:40:12 CEST 2008
27 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
28
294.748 Sat Sep 27 14:03:19 CEST 2008
30 - implement, but do not document, PerlIO::cede(granularity).
31 - Coro::Storable forgot to wrap Storable::pstore.
32 - work around the multitude of leaks and memory corruption
33 bugs in PerlIO::via by using our own C-level perliol. As a side
34 effect, Coro::Storable is now much, much, much faster.
35
364.747 Tue Sep 23 01:59:41 CEST 2008
37 - fix a per-cv memleak (one empty array was leaked per
38 code reference).
39 - avoid a crash in coro->call|rss when the coroutine was already
40 destroyed (most noticably when using Coro::Debug::ps :)
41 - also protect *Storable::FILE.
42 - push up default storable granularity to 20ms.
43
444.746 Sun Sep 21 03:22:20 CEST 2008
45 - be more insistent on locking Storable against reentrancy
46 in Coro::Storable.
47 - move swap_def?v and throw to Coro::State, as documented.
48
494.745 Thu Jul 24 00:14:38 CEST 2008
50 - remove debugging code related to MgPV_nolen_const, also try to
51 make it compile with perl 5.8.6 (yes, apple apparently loves
52 outdated software). Reported by John S.
53
544.744 Tue Jul 8 22:06:35 CEST 2008
55 - correctly provide default DIE/WARN handlers as documented.
56 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
57 implementations inside perl work fine for us.
58
594.743 Mon Jun 16 00:21:57 CEST 2008
60 - when using Coro::EV without running EV::loop it could
61 result in busy-waiting for events, this has been fixed.
62 - reduce codesize and improve performance by using EV_DEFAULT_UC.
63
644.742 Sat May 31 14:10:21 CEST 2008
65 - implement a workaround for (some) perl <5.8.8 versions.
66 - require EV 3.3+.
67
684.741 Fri May 30 23:33:09 CEST 2008
69 - tell netbsd how utterly broken their imitation of an OS is
70 and refuse to build by default if pthreads are in use.
71 - switch to "s" method on all bsd's by default, as their ucontext
72 stuff seems just too broken.
73 - fix a bug in Coro::Select.
74
754.74 Thu May 29 20:05:31 CEST 2008
76 - do not test Coro::LWP for lack of dependencies.
77 - do not test Coro::Select for lack of working perls.
78
794.73 Thu May 29 2008
80 - fix a bug in Coro::EV which would cause it to block despite
81 there being runnable coroutines.
82 - sprinkle "no warnings" freely over everything, also suppress
83 warnings for some other modules.
84 - fix typo in WSAEWOULDBLOCK.
85
864.72 Sun May 25 05:14:36 CEST 2008
87 - tweak META.yaml a bit, unfortunately, there is no documented way
88 to have optional dependencies with CPAN. doh :(
89 - avoid running some tests on windows because they would fail due to
90 perl bug (broken fork, broken pipes...).
91 - work around perl on windows bugs where perl returns undocumented
92 error codes for sysread, syswrite etc. by taking advantage
93 of AnyEvent's workaround for that problem.
94 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
95 a common perl implementation bug on windows.
96 - use unix domain sockets in testsuite to work around
97 common perl implementation bugs on widows (they are emulated by
98 tcp sockets on windows. ugh.)
99
1004.71 Sat May 24 20:01:27 CEST 2008
101 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
102 - take advantage of async name resolution of AnyEvent::Util.
103 - work around brutal inet_aton override in Coro::LWP.
104 - take advantage of the readyhook in Coro::EV, for smoother
105 scheduling.
106
1074.7 Sun May 11 00:32:19 CEST 2008
108 - completely reworked the Coro manpage.
109 - added Coro::AnyEvent, generic event loop integration.
110 - implement cancel, ready and kill commands in Coro::Debug.
111 - document find_coro in Coro::Debug.
112 - incompatible change: rename has_stack to has_cctx.
113 - Coro::AIO and Coro::BDB no longer force event model detection,
114 use AnyEvent::AIO and AnyEvent::BDB.
115
1164.6 Sat Apr 26 10:05:14 CEST 2008
117 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
118 by the Coro module. It was a mistake to have it in the first place.
119 - (experimental) support for activestate perl 5.10 (method "w").
120 - (experimental) support for strawberry perl (method "a").
121 - coro_sigelem_set did not return a value although it had to,
122 actual impact unknown.
123
1244.51 Mon Apr 14 13:28:27 CEST 2008
125 - make it compile again on 5.8.
126
1274.50 Thu Apr 10 09:43:17 CEST 2008
128 - I did it twice! (see 4.49).
129
1304.49 Sun Apr 6 21:23:31 CEST 2008
131 - grr, instead of compiling the recent changes on 5.10 only they
132 were compiled on 5.8 only.
133
1344.48 Sun Apr 6 20:36:46 CEST 2008
135 - allow coroutine switches during eval's under 5.10.x, as it seems
136 the parser is a per-interpreter option now, so this is safe
137 (this might fix the odd crashing bug).
138 - drop support for 5.9.x versions: they are dead, jim.
139
1404.47 Sun Apr 6 00:37:52 CEST 2008
141 - force cctx allocation on API calls: we know we need to force one
142 and gcc actually manages to confuse our heuristic nowadays,
143 leading to crashes and worse.
144 - document force_cctx.
145
1464.46 Fri Apr 4 22:05:43 CEST 2008
147 - upgrade libcoro, resulting in pthread-backend (which was only created
148 to fulfill the rules of the programming languages shootout).
149
1504.45 Thu Mar 13 11:55:36 CET 2008
151 - fix a file leaking bug in eg/mhyttpd that would allow
152 downloading of any file (reported by oesi).
153 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
154 (also add testcase).
155 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
156 apparently having loads of fun with that).
157 - implement $state->swap_defsv, ->swap_defav and document ->throw.
158
1594.4 Wed Feb 13 16:44:29 CET 2008
160 - only assume .cfi pseudo isns exist on GNU/Linux.
161 - add get_timed method to Coro::Channels.
162 - fixed Coro::Debug manpage.
163 - perl 5.11 compatbility improvement based on patch by
164 Andreas König.
165
1664.37 Sun Jan 20 11:25:23 CET 2008
167 - soften the check for an active parser for perl 5.10 (avoiding
168 "Coro::State::transfer called while parsing" in many cases).
169
1704.36 Sun Jan 13 10:53:56 CET 2008
171 - reset diehook when terminating from an async_pool as to not
172 trigger any __DIE__ handlers.
173
1744.35 Sun Jan 13 04:14:13 CET 2008
175 - "bt" debug command now displays any exceptions
176 from longmess and also skips the innermost
177 stackframes, giving more useufl output.
178 - allow backtraces in coroutines blocked in Coro::EV,
179 at a <1% speed hit.
180 - handle localising of $SIG{__WARN__} and __DIE__
181 properly (with a proper amount of dirty hacking).
182
1834.34 Sat Dec 22 17:49:53 CET 2007
184 - upgrade to EV version 2.0 API.
185
1864.33 Mon Dec 17 08:36:12 CET 2007
187 - make Coro::AIO etc. loadable in the absence of EV.
188
1894.32 Mon Dec 17 07:46:02 CET 2007
190 - majorly improved Coro::Handle's performance with Coro::EV.
191 - implemented the until now mythical Coro::BDB module.
192 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
193
1944.31 Wed Dec 5 12:32:39 CET 2007
195 - remove warn statement form Coro::Util.
196
1974.3 Tue Dec 4 20:33:14 CET 2007
198 - calls to the idle function could cause stack corruption
199 when the stack changed.
200 - do no longer rely on the presence of EV::DNS if EV is used
201 (because it is gone), but instead take avdantage of EV::ADNS
202 if available.
203 - add ($) prototypes to all functions in Coro::Storable.
204 - use a conventional (safer) idle callback in Coro::EV.
205 - do accept quickly in Coro::Debug to avoid endless loops.
206
2074.22 Fri Nov 30 16:04:04 CET 2007
208 - really use optimised versions for Event and EV in Coro::Util
209 and Coro::Handle.
210
2114.21 Sun Nov 25 10:48:59 CET 2007
212 - fix a spurious memory read.
213 - Coro::EV no longer keeps the eventloop "alive".
214
2154.2 Fri Nov 9 20:47:05 CET 2007
216 - enable/disable tracing from a new coroutine, not a pooled one.
217 - fix a memleak in Coro::Event.
218 - removed killall call from fork_eval.
219 - made sure store_fd is already loaded so that fork_eval
220 does not have to parse autoload in each subprocess.
221 - only use assembly method if -O switch is in $Config{optimize}.
222 - add (optional) Coro::EV module, so far the best event loop module
223 directly supported by Coro.
224 - if the event model is EV, use EV::DNS to resolve
225 stuff in Coro::Util.
226 - don't get confused by multiple event notifications in Coro::Handle.
227 - initial support for EV (libevent interface).
228 - require Event and EV using configure_requires, to force their existance.
229
2304.13 Wed Oct 24 07:26:45 CEST 2007
231 - add Coro::Storable::blocking_thaw.
232 - use a vastly more complicated technique to localise
233 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
234 - use a coroutine for the idle callback Coro::Event,
235 instead of running Event in the current coroutine context.
236 This also catches recursive invocations.
237 - actually report fork errors in gethostbyname and inet_aton.
238
2394.11 Thu Oct 11 02:40:24 CEST 2007
240 - port to threaded perls.
241
2424.1 Thu Oct 11 02:38:16 CEST 2007
243 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
244 be local to each coro (see Coro::State).
245 - incompatible change: for very deep reasons, cede and cede_notself
246 cannot return anything, so nothing will be returned.
247 - possibly bring back 5.10 compatibility (untested).
248 - work around stupid (and wrong) warning on 5.10 :(.
249 - overlay the saved state over the context stack. This saves
250 a few hundred bytes per coroutine on average and also
251 speeds up context switching a bit.
252 - further tune default stack sizes.
253 - (more) correctly calculate stack usage in coro_rss.
254 - Coro::Storable::blocking_* did not properly lock
255 resulting in races between coroutines.
256 - added Coro::Storable::guard.
257 - stopping to trace a coroutine could destroy the cctx of
258 an unrelated coroutine.
259 - explain the relationship between Perl and C coroutines in
260 more detail in Coro::State.
261 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
262 causing a fork per resolve. This also affected Coro::Socket.
263 - switch to a separate stack in $coro->call/eval to avoid
264 invalidating pointers.
265
2664.03 Sat Oct 6 21:24:00 CEST 2007
267 - added Coro::throw method.
268 - minor code cleanups.
269
2704.02 Sat Oct 6 02:36:47 CEST 2007
271 - fix a very minor per-coroutine memleak (a single codereference).
272 - fixed a bug where the currently in-use c context would be freed
273 prematurely (can happen only when programs change the stacksize
274 or use tracing).
275 - tracing can no longer keep a coro alive after it terminated.
276 - do static branch prediction in the common path for gcc. gives
277 about 2-5% speed improvement here.
278
2794.01 Fri Oct 5 22:10:49 CEST 2007
280 - instead of recreating *a* standard output handle we simply
281 use STDOUT, which is faster and hopefully more robust.
282
2834.0 Fri Oct 5 12:56:00 CEST 2007
284 - incompatibly changed Coro::Storable::freeze.
285 - major new feature: added Coro::Debug, for interactive coroutine
286 debugging, tracing and much more.
287 - major bug fix: unbelievable, but true: $_, $/ and many other
288 "saved" variables actually weren't being saved. This has been fixed,
289 of course, while increasing performance while losing all the save
290 flags.
291 - save flags are gone, and all the api functions dealing with them.
292 - added Coro::Semaphore::adjust.
293 - added Coro::Util::fork_eval.
294 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
295 - added Coro::killall.
296 - reduce initial stack sizes to allow for "micro-coroutines".
297 - better async_pool resource management, moved parts of async_pool
298 handling to XS (major speed improvement).
299 - actually croak before modifying important data structures.
300 - refuse to transfer while compiling.
301 - possibly support eval EXPR better now.
302 - enable assembly per default on linux+bsd x86+amd64.
303 - all internal members were renamed _something for easier subclassing.
304 - many minor tweaks.
305
3063.63 Wed May 16 14:10:06 CEST 2007
307 - implement handcoded assembly for x86/amd64 SVR ABI.
308
3093.62 Fri Apr 27 21:36:06 CEST 2007
310 - upgrade libcoro (which might set unwind info correctly).
311 - change default on linux to setjmp/longjmp.
312
3133.61 Thu Apr 19 12:36:18 CEST 2007
314 - Coro::Storable caused an endless loop when thawing invalid
315 pst's sometimes.
316 - use a Semaphore in Coro::Storable, as Storable doesn't
317 seem to be reentrant (although it is documented to
318 be threadsafe...).
319 - fix Coro::Signal to bring back the original unreliable
320 but stateful semantics.
321 - fixed a lot of typos in Coro.pm (patch submitted by David
322 Steinbrunner, which applied flawlessly).
323
3243.6 Sat Apr 14 17:13:31 CEST 2007
325 - added some bugfixes to get eg/myhttpd working again.
326 - added Coro::Storable for often-cede'ing freeze/thaw.
327 - try to do a clean exit when a coroutine calls exit
328 (EXPERIMENTAL).
329 - got rid of indirect call through _coro_init.
330 - updated the partly antique examples in eg/ to
331 work again and be a bit less magic, too.
332 - fixed Coro::Signal semantics to work as documented again.
333
3343.55 Sun Mar 25 01:20:47 CET 2007
335 - add SAVE_DEFFH to save the default filehandle and enable
336 it by default.
337 - finally move socket-operations from Coro::Socket to Coro::Handle
338 to be able to unblock foreign sockets.
339 - add Coro::State::save_also and guarded_save.
340 - add count accessor to Coro::Semaphore.
341 - add Coro::State::cctx_stacksize.
342 - just for the fun of it, do not rely on implicit context,
343 which can dramatically improve performance, but people
344 using windows-process-emulation perls do not care much about
345 performance.
346
3473.51 Sun Mar 4 14:18:04 CET 2007
348 - fixed a problem when you weakened references to Coro::State's
349 (patch by Yuval Kogman).
350
3513.501 Wed Feb 28 12:44:07 CET 2007
352 - rename some global symbols as macosx from hell redefines
353 them without asking.
354
3553.5 Tue Feb 13 20:22:53 CET 2007
356 - do AnyEvent model detection earlier, avoiding problems
357 caused by first using AnyEvent and later Coro::Event.
358 - implement and document Coro::Event event objects.
359 - fix a potential problem in Coro::Event causing crashes.
360 - initialise PL_comppad when creating a new coroutine,
361 avoids crashes on early coro destruction.
362
3633.41 Mon Jan 22 19:19:49 CET 2007
364 - readline on Coro::Handle did not support undefined $/,
365 nor did it deliver partial lines on EOF or error.
366 - implement malloc fallback for stack allocation because
367 stupid broken idiotic OSX has a stupid broken
368 idiotic fits-the-whole-os mmap "implementation" and
369 my dick feels longer if Coro is portable even to
370 obsolete platforms.
371
3723.4 Fri Jan 19 21:52:54 CET 2007
373 - remove t/09_timer.t, as it isn't really testing much
374 but was rather flaky in practise.
375 - async_pool coro would keep arguments and callback alive until
376 it was reused.
377 - cancellation of a coroutine could cause spurious idle calls
378 in cede_notself.
379
3803.3 Sat Jan 6 03:45:00 CET 2007
381 - implement $coro->on_destroy.
382 - Coro::Event blocking semantics have been changed,
383 documented and - hopefully - improved.
384 - fix nice adding, not subtracting, from priority.
385 - fix ->prio and api_is_ready (patch by Mark Hinds).
386 - fixed an assert ("... == prev__cctx->idle_te")
387 that could errronously trigger.
388 - fix various large and small memleaks.
389 - use a (hopefully) more stable cancel implementation
390 that immediately frees the coroutine data.
391 - cede/cede_notself return a status now.
392 - added Coro::guard function.
393 - added a global coroutine pool for jobs (on my machine,
394 I can create and execute 48k simple coros/s with async,
395 and 128k coros with async_pool).
396 - Coro::AIO now uses the coroutine priority as io priority.
397
3983.2 Fri Dec 22 05:07:09 CET 2006
399 - improve portability to slightly older perls.
400 - use cleaner coroutine destruction.
401 - simplify configuration for users.
402 - optionally (unrecommended) prefer perl functions over
403 their coro replacements.
404
4053.11 Tue Dec 5 13:11:24 CET 2006
406 - fixed some bogus assert's, but as perl.h disables assert even
407 without NDEBUG (thank you very much), not too many people should
408 notice (that did include myself). Andreas König noticed, though :)
409 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
410 it. Also noticed by Andreas König :)
411 - save/restore tainted status.
412 - verified to pass the testsuite on my 5.9.5.
413
4143.1 Mon Dec 4 23:03:40 CET 2006
415 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
416 - incompatible change: transfer flags are now per-state.
417 - give a better error message on deadlock.
418 - document Coro::nready.
419 - enhanced testsuite.
420
4213.01 Sun Dec 3 23:47:42 CET 2006
422 - forgot to include Coro::Timer.
423
4243.0 Sun Dec 3 22:57:25 CET 2006
425 - the "FINALLY COMPLETELY STABLE" release (coming soon:
426 the "FAMOUS LAST WORDS" release).
4 - reimplement a new stack sharing algorithm. 427 - implement a new stack sharing algorithm, which uses a stack
428 pool (size currently hardcoded).
5 - make stack sharing mandatory (it no longer uses a heuristic). 429 - make stack sharing mandatory (it no longer uses a heuristic).
6 - eval/die no longer cause weird problems under heavy use. 430 - eval/die no longer cause weird problems under heavy use.
7 - Coro::Event could cause livelocks if it was used but 431 - Coro::Event could cause livelocks if it was used but
8 Event watchers were used directly. 432 no Coro::Event watchers were used.
433 - Coro::Event now uses asynccheck as prepare does not
434 check for changed watchers.
435 - Coro::Event allows multiple waiting coros and will wake up one
436 per event.
9 - Coro::Event should be cleaner and more efficient now. 437 - Coro::Event should be cleaner and more efficient now.
438 - new utility function Coro::unblock_sub.
439 - document the sad fact that Event is no longer reentrant.
440 - putting a coroutine into the ready queue twice could under
441 some circumstances lead to stack corruption.
10 - minor incompatibility: subclassing is supported directly now 442 - minor incompatibility: subclassing Coro::State is supported
11 without going through a _coro_state member. 443 directly now without going through a _coro_state member.
12 - state/coro switching is much faster now. 444 - state/coro switching is much faster now.
13 - very minor optimisations and code/documentation cleanup. 445 - very minor optimisations and code/documentation cleanup.
14 - avoid problems due to compiler inlining. 446 - avoid problems due to compiler inlining.
15 - removed timers from Coro::Timer -> use AnyEvent instead. 447 - removed timers from Coro::Timer -> use AnyEvent instead.
16 - replaced Coro::idle coroutine by (cleaner) idle handler. 448 - replaced Coro::idle coroutine by (cleaner) idle handler.
17 - updated to newest libcoro. 449 - updated to newest libcoro.
18 - implement enhanced support for valgrind. 450 - implement enhanced support for valgrind.
451 - implement is_ready and return value for ready.
452 - removed Coro::Cont, it was a misnomer (it's generators),
453 and it was somewhat annoying to get it right. Will come back
454 if somebody asks for it :)
455 - many ->wait methods and Coro::Event could return
456 spuriously without the event having happened.
19 457
202.5 Tue Nov 7 12:22:33 CET 2006 4582.5 Tue Nov 7 12:22:33 CET 2006
21 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket 459 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
22 use AnyEvent, moved them to Coro/. 460 use AnyEvent, moved them to Coro/.
23 - added Coro::LWP which contains all the uglyness required to 461 - added Coro::LWP which contains all the uglyness required to

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