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Comparing Coro/Changes (file contents):
Revision 1.166 by root, Fri Dec 1 13:36:07 2006 UTC vs.
Revision 1.392 by root, Fri Nov 7 20:12:26 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
174.804 Wed Nov 5 16:36:00 CET 2008
18 - Coro::Debug::new_unix_server would not create a non-blocking listening
19 socket, sometimes causing freezes.
20 - (libcoro) fix misaligned stack points for setjmp and assembly
21 methods, which can cause crashes on x86/x86_64 with a sufficiently
22 aggressive compiler.
23 - new function: Coro::Debug::new_tcp_server.
24 - move ->throw into the Coro class because it only works on coro objects.
25
264.803 Mon Nov 3 17:16:12 CET 2008
27 - (libcoro) use a global asm statement to become independent of gcc
28 otpimisations for CORO_ASM (thanks to pippijn for the idea).
29 - try to workaround yet another broken bsd, this time dragonfly.
30
314.802 Thu Oct 30 10:56:12 CET 2008
32 - support -fno-omit-frame-pointer on x86 with the assembly method.
33 - tune 01_unblock.t tests a bit.
34
354.801 Wed Oct 22 18:33:37 CEST 2008
36 - improve readline speed for very long "lines".
37 - backport to 5.8.8.
38
394.8 Thu Oct 2 13:34:40 CEST 2008
40 - new function Coro::AIO::aio_wait.
41 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
42 - greatly speed up and reduce memory usage of Coro::AIO requests.
43 - implement some other µ-optimisations.
44
454.749 Mon Sep 29 14:40:12 CEST 2008
46 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
47
484.748 Sat Sep 27 14:03:19 CEST 2008
49 - implement, but do not document, PerlIO::cede(granularity).
50 - Coro::Storable forgot to wrap Storable::pstore.
51 - work around the multitude of leaks and memory corruption
52 bugs in PerlIO::via by using our own C-level perliol. As a side
53 effect, Coro::Storable is now much, much, much faster.
54
554.747 Tue Sep 23 01:59:41 CEST 2008
56 - fix a per-cv memleak (one empty array was leaked per
57 code reference).
58 - avoid a crash in coro->call|rss when the coroutine was already
59 destroyed (most noticably when using Coro::Debug::ps :)
60 - also protect *Storable::FILE.
61 - push up default storable granularity to 20ms.
62
634.746 Sun Sep 21 03:22:20 CEST 2008
64 - be more insistent on locking Storable against reentrancy
65 in Coro::Storable.
66 - move swap_def?v and throw to Coro::State, as documented.
67
684.745 Thu Jul 24 00:14:38 CEST 2008
69 - remove debugging code related to MgPV_nolen_const, also try to
70 make it compile with perl 5.8.6 (yes, apple apparently loves
71 outdated software). Reported by John S.
72
734.744 Tue Jul 8 22:06:35 CEST 2008
74 - correctly provide default DIE/WARN handlers as documented.
75 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
76 implementations inside perl work fine for us.
77
784.743 Mon Jun 16 00:21:57 CEST 2008
79 - when using Coro::EV without running EV::loop it could
80 result in busy-waiting for events, this has been fixed.
81 - reduce codesize and improve performance by using EV_DEFAULT_UC.
82
834.742 Sat May 31 14:10:21 CEST 2008
84 - implement a workaround for (some) perl <5.8.8 versions.
85 - require EV 3.3+.
86
874.741 Fri May 30 23:33:09 CEST 2008
88 - tell netbsd how utterly broken their imitation of an OS is
89 and refuse to build by default if pthreads are in use.
90 - switch to "s" method on all bsd's by default, as their ucontext
91 stuff seems just too broken.
92 - fix a bug in Coro::Select.
93
944.74 Thu May 29 20:05:31 CEST 2008
95 - do not test Coro::LWP for lack of dependencies.
96 - do not test Coro::Select for lack of working perls.
97
984.73 Thu May 29 2008
99 - fix a bug in Coro::EV which would cause it to block despite
100 there being runnable coroutines.
101 - sprinkle "no warnings" freely over everything, also suppress
102 warnings for some other modules.
103 - fix typo in WSAEWOULDBLOCK.
104
1054.72 Sun May 25 05:14:36 CEST 2008
106 - tweak META.yaml a bit, unfortunately, there is no documented way
107 to have optional dependencies with CPAN. doh :(
108 - avoid running some tests on windows because they would fail due to
109 perl bug (broken fork, broken pipes...).
110 - work around perl on windows bugs where perl returns undocumented
111 error codes for sysread, syswrite etc. by taking advantage
112 of AnyEvent's workaround for that problem.
113 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
114 a common perl implementation bug on windows.
115 - use unix domain sockets in testsuite to work around
116 common perl implementation bugs on widows (they are emulated by
117 tcp sockets on windows. ugh.)
118
1194.71 Sat May 24 20:01:27 CEST 2008
120 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
121 - take advantage of async name resolution of AnyEvent::Util.
122 - work around brutal inet_aton override in Coro::LWP.
123 - take advantage of the readyhook in Coro::EV, for smoother
124 scheduling.
125
1264.7 Sun May 11 00:32:19 CEST 2008
127 - completely reworked the Coro manpage.
128 - added Coro::AnyEvent, generic event loop integration.
129 - implement cancel, ready and kill commands in Coro::Debug.
130 - document find_coro in Coro::Debug.
131 - incompatible change: rename has_stack to has_cctx.
132 - Coro::AIO and Coro::BDB no longer force event model detection,
133 use AnyEvent::AIO and AnyEvent::BDB.
134
1354.6 Sat Apr 26 10:05:14 CEST 2008
136 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
137 by the Coro module. It was a mistake to have it in the first place.
138 - (experimental) support for activestate perl 5.10 (method "w").
139 - (experimental) support for strawberry perl (method "a").
140 - coro_sigelem_set did not return a value although it had to,
141 actual impact unknown.
142
1434.51 Mon Apr 14 13:28:27 CEST 2008
144 - make it compile again on 5.8.
145
1464.50 Thu Apr 10 09:43:17 CEST 2008
147 - I did it twice! (see 4.49).
148
1494.49 Sun Apr 6 21:23:31 CEST 2008
150 - grr, instead of compiling the recent changes on 5.10 only they
151 were compiled on 5.8 only.
152
1534.48 Sun Apr 6 20:36:46 CEST 2008
154 - allow coroutine switches during eval's under 5.10.x, as it seems
155 the parser is a per-interpreter option now, so this is safe
156 (this might fix the odd crashing bug).
157 - drop support for 5.9.x versions: they are dead, jim.
158
1594.47 Sun Apr 6 00:37:52 CEST 2008
160 - force cctx allocation on API calls: we know we need to force one
161 and gcc actually manages to confuse our heuristic nowadays,
162 leading to crashes and worse.
163 - document force_cctx.
164
1654.46 Fri Apr 4 22:05:43 CEST 2008
166 - upgrade libcoro, resulting in pthread-backend (which was only created
167 to fulfill the rules of the programming languages shootout).
168
1694.45 Thu Mar 13 11:55:36 CET 2008
170 - fix a file leaking bug in eg/mhyttpd that would allow
171 downloading of any file (reported by oesi).
172 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
173 (also add testcase).
174 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
175 apparently having loads of fun with that).
176 - implement $state->swap_defsv, ->swap_defav and document ->throw.
177
1784.4 Wed Feb 13 16:44:29 CET 2008
179 - only assume .cfi pseudo isns exist on GNU/Linux.
180 - add get_timed method to Coro::Channels.
181 - fixed Coro::Debug manpage.
182 - perl 5.11 compatbility improvement based on patch by
183 Andreas König.
184
1854.37 Sun Jan 20 11:25:23 CET 2008
186 - soften the check for an active parser for perl 5.10 (avoiding
187 "Coro::State::transfer called while parsing" in many cases).
188
1894.36 Sun Jan 13 10:53:56 CET 2008
190 - reset diehook when terminating from an async_pool as to not
191 trigger any __DIE__ handlers.
192
1934.35 Sun Jan 13 04:14:13 CET 2008
194 - "bt" debug command now displays any exceptions
195 from longmess and also skips the innermost
196 stackframes, giving more useufl output.
197 - allow backtraces in coroutines blocked in Coro::EV,
198 at a <1% speed hit.
199 - handle localising of $SIG{__WARN__} and __DIE__
200 properly (with a proper amount of dirty hacking).
201
2024.34 Sat Dec 22 17:49:53 CET 2007
203 - upgrade to EV version 2.0 API.
204
2054.33 Mon Dec 17 08:36:12 CET 2007
206 - make Coro::AIO etc. loadable in the absence of EV.
207
2084.32 Mon Dec 17 07:46:02 CET 2007
209 - majorly improved Coro::Handle's performance with Coro::EV.
210 - implemented the until now mythical Coro::BDB module.
211 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
212
2134.31 Wed Dec 5 12:32:39 CET 2007
214 - remove warn statement form Coro::Util.
215
2164.3 Tue Dec 4 20:33:14 CET 2007
217 - calls to the idle function could cause stack corruption
218 when the stack changed.
219 - do no longer rely on the presence of EV::DNS if EV is used
220 (because it is gone), but instead take avdantage of EV::ADNS
221 if available.
222 - add ($) prototypes to all functions in Coro::Storable.
223 - use a conventional (safer) idle callback in Coro::EV.
224 - do accept quickly in Coro::Debug to avoid endless loops.
225
2264.22 Fri Nov 30 16:04:04 CET 2007
227 - really use optimised versions for Event and EV in Coro::Util
228 and Coro::Handle.
229
2304.21 Sun Nov 25 10:48:59 CET 2007
231 - fix a spurious memory read.
232 - Coro::EV no longer keeps the eventloop "alive".
233
2344.2 Fri Nov 9 20:47:05 CET 2007
235 - enable/disable tracing from a new coroutine, not a pooled one.
236 - fix a memleak in Coro::Event.
237 - removed killall call from fork_eval.
238 - made sure store_fd is already loaded so that fork_eval
239 does not have to parse autoload in each subprocess.
240 - only use assembly method if -O switch is in $Config{optimize}.
241 - add (optional) Coro::EV module, so far the best event loop module
242 directly supported by Coro.
243 - if the event model is EV, use EV::DNS to resolve
244 stuff in Coro::Util.
245 - don't get confused by multiple event notifications in Coro::Handle.
246 - initial support for EV (libevent interface).
247 - require Event and EV using configure_requires, to force their existance.
248
2494.13 Wed Oct 24 07:26:45 CEST 2007
250 - add Coro::Storable::blocking_thaw.
251 - use a vastly more complicated technique to localise
252 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
253 - use a coroutine for the idle callback Coro::Event,
254 instead of running Event in the current coroutine context.
255 This also catches recursive invocations.
256 - actually report fork errors in gethostbyname and inet_aton.
257
2584.11 Thu Oct 11 02:40:24 CEST 2007
259 - port to threaded perls.
260
2614.1 Thu Oct 11 02:38:16 CEST 2007
262 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
263 be local to each coro (see Coro::State).
264 - incompatible change: for very deep reasons, cede and cede_notself
265 cannot return anything, so nothing will be returned.
266 - possibly bring back 5.10 compatibility (untested).
267 - work around stupid (and wrong) warning on 5.10 :(.
268 - overlay the saved state over the context stack. This saves
269 a few hundred bytes per coroutine on average and also
270 speeds up context switching a bit.
271 - further tune default stack sizes.
272 - (more) correctly calculate stack usage in coro_rss.
273 - Coro::Storable::blocking_* did not properly lock
274 resulting in races between coroutines.
275 - added Coro::Storable::guard.
276 - stopping to trace a coroutine could destroy the cctx of
277 an unrelated coroutine.
278 - explain the relationship between Perl and C coroutines in
279 more detail in Coro::State.
280 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
281 causing a fork per resolve. This also affected Coro::Socket.
282 - switch to a separate stack in $coro->call/eval to avoid
283 invalidating pointers.
284
2854.03 Sat Oct 6 21:24:00 CEST 2007
286 - added Coro::throw method.
287 - minor code cleanups.
288
2894.02 Sat Oct 6 02:36:47 CEST 2007
290 - fix a very minor per-coroutine memleak (a single codereference).
291 - fixed a bug where the currently in-use c context would be freed
292 prematurely (can happen only when programs change the stacksize
293 or use tracing).
294 - tracing can no longer keep a coro alive after it terminated.
295 - do static branch prediction in the common path for gcc. gives
296 about 2-5% speed improvement here.
297
2984.01 Fri Oct 5 22:10:49 CEST 2007
299 - instead of recreating *a* standard output handle we simply
300 use STDOUT, which is faster and hopefully more robust.
301
3024.0 Fri Oct 5 12:56:00 CEST 2007
303 - incompatibly changed Coro::Storable::freeze.
304 - major new feature: added Coro::Debug, for interactive coroutine
305 debugging, tracing and much more.
306 - major bug fix: unbelievable, but true: $_, $/ and many other
307 "saved" variables actually weren't being saved. This has been fixed,
308 of course, while increasing performance while losing all the save
309 flags.
310 - save flags are gone, and all the api functions dealing with them.
311 - added Coro::Semaphore::adjust.
312 - added Coro::Util::fork_eval.
313 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
314 - added Coro::killall.
315 - reduce initial stack sizes to allow for "micro-coroutines".
316 - better async_pool resource management, moved parts of async_pool
317 handling to XS (major speed improvement).
318 - actually croak before modifying important data structures.
319 - refuse to transfer while compiling.
320 - possibly support eval EXPR better now.
321 - enable assembly per default on linux+bsd x86+amd64.
322 - all internal members were renamed _something for easier subclassing.
323 - many minor tweaks.
324
3253.63 Wed May 16 14:10:06 CEST 2007
326 - implement handcoded assembly for x86/amd64 SVR ABI.
327
3283.62 Fri Apr 27 21:36:06 CEST 2007
329 - upgrade libcoro (which might set unwind info correctly).
330 - change default on linux to setjmp/longjmp.
331
3323.61 Thu Apr 19 12:36:18 CEST 2007
333 - Coro::Storable caused an endless loop when thawing invalid
334 pst's sometimes.
335 - use a Semaphore in Coro::Storable, as Storable doesn't
336 seem to be reentrant (although it is documented to
337 be threadsafe...).
338 - fix Coro::Signal to bring back the original unreliable
339 but stateful semantics.
340 - fixed a lot of typos in Coro.pm (patch submitted by David
341 Steinbrunner, which applied flawlessly).
342
3433.6 Sat Apr 14 17:13:31 CEST 2007
344 - added some bugfixes to get eg/myhttpd working again.
345 - added Coro::Storable for often-cede'ing freeze/thaw.
346 - try to do a clean exit when a coroutine calls exit
347 (EXPERIMENTAL).
348 - got rid of indirect call through _coro_init.
349 - updated the partly antique examples in eg/ to
350 work again and be a bit less magic, too.
351 - fixed Coro::Signal semantics to work as documented again.
352
3533.55 Sun Mar 25 01:20:47 CET 2007
354 - add SAVE_DEFFH to save the default filehandle and enable
355 it by default.
356 - finally move socket-operations from Coro::Socket to Coro::Handle
357 to be able to unblock foreign sockets.
358 - add Coro::State::save_also and guarded_save.
359 - add count accessor to Coro::Semaphore.
360 - add Coro::State::cctx_stacksize.
361 - just for the fun of it, do not rely on implicit context,
362 which can dramatically improve performance, but people
363 using windows-process-emulation perls do not care much about
364 performance.
365
3663.51 Sun Mar 4 14:18:04 CET 2007
367 - fixed a problem when you weakened references to Coro::State's
368 (patch by Yuval Kogman).
369
3703.501 Wed Feb 28 12:44:07 CET 2007
371 - rename some global symbols as macosx from hell redefines
372 them without asking.
373
3743.5 Tue Feb 13 20:22:53 CET 2007
375 - do AnyEvent model detection earlier, avoiding problems
376 caused by first using AnyEvent and later Coro::Event.
377 - implement and document Coro::Event event objects.
378 - fix a potential problem in Coro::Event causing crashes.
379 - initialise PL_comppad when creating a new coroutine,
380 avoids crashes on early coro destruction.
381
3823.41 Mon Jan 22 19:19:49 CET 2007
383 - readline on Coro::Handle did not support undefined $/,
384 nor did it deliver partial lines on EOF or error.
385 - implement malloc fallback for stack allocation because
386 stupid broken idiotic OSX has a stupid broken
387 idiotic fits-the-whole-os mmap "implementation" and
388 my dick feels longer if Coro is portable even to
389 obsolete platforms.
390
3913.4 Fri Jan 19 21:52:54 CET 2007
392 - remove t/09_timer.t, as it isn't really testing much
393 but was rather flaky in practise.
394 - async_pool coro would keep arguments and callback alive until
395 it was reused.
396 - cancellation of a coroutine could cause spurious idle calls
397 in cede_notself.
398
3993.3 Sat Jan 6 03:45:00 CET 2007
400 - implement $coro->on_destroy.
401 - Coro::Event blocking semantics have been changed,
402 documented and - hopefully - improved.
403 - fix nice adding, not subtracting, from priority.
404 - fix ->prio and api_is_ready (patch by Mark Hinds).
405 - fixed an assert ("... == prev__cctx->idle_te")
406 that could errronously trigger.
407 - fix various large and small memleaks.
408 - use a (hopefully) more stable cancel implementation
409 that immediately frees the coroutine data.
410 - cede/cede_notself return a status now.
411 - added Coro::guard function.
412 - added a global coroutine pool for jobs (on my machine,
413 I can create and execute 48k simple coros/s with async,
414 and 128k coros with async_pool).
415 - Coro::AIO now uses the coroutine priority as io priority.
416
4173.2 Fri Dec 22 05:07:09 CET 2006
418 - improve portability to slightly older perls.
419 - use cleaner coroutine destruction.
420 - simplify configuration for users.
421 - optionally (unrecommended) prefer perl functions over
422 their coro replacements.
423
4243.11 Tue Dec 5 13:11:24 CET 2006
425 - fixed some bogus assert's, but as perl.h disables assert even
426 without NDEBUG (thank you very much), not too many people should
427 notice (that did include myself). Andreas König noticed, though :)
428 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
429 it. Also noticed by Andreas König :)
430 - save/restore tainted status.
431 - verified to pass the testsuite on my 5.9.5.
432
4333.1 Mon Dec 4 23:03:40 CET 2006
434 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
435 - incompatible change: transfer flags are now per-state.
436 - give a better error message on deadlock.
437 - document Coro::nready.
438 - enhanced testsuite.
439
4403.01 Sun Dec 3 23:47:42 CET 2006
441 - forgot to include Coro::Timer.
442
4433.0 Sun Dec 3 22:57:25 CET 2006
4 - the "FINALLY COMPLETELY STABLE" release (coming soon: 444 - the "FINALLY COMPLETELY STABLE" release (coming soon:
5 the "FAMOUS LAST WORDS" release). 445 the "FAMOUS LAST WORDS" release).
6 - implement a new stack sharing algorithm, which uses a stack 446 - implement a new stack sharing algorithm, which uses a stack
7 pool (size currently hardcoded). 447 pool (size currently hardcoded).
8 - make stack sharing mandatory (it no longer uses a heuristic). 448 - make stack sharing mandatory (it no longer uses a heuristic).
9 - eval/die no longer cause weird problems under heavy use. 449 - eval/die no longer cause weird problems under heavy use.
10 - Coro::Event could cause livelocks if it was used but 450 - Coro::Event could cause livelocks if it was used but
11 no Coro::Event watchers were used. 451 no Coro::Event watchers were used.
452 - Coro::Event now uses asynccheck as prepare does not
453 check for changed watchers.
454 - Coro::Event allows multiple waiting coros and will wake up one
455 per event.
12 - Coro::Event should be cleaner and more efficient now. 456 - Coro::Event should be cleaner and more efficient now.
13 - new utility function Coro::unblock_sub. 457 - new utility function Coro::unblock_sub.
14 - document the sad fact that Event is no longer reentrant. 458 - document the sad fact that Event is no longer reentrant.
15 - putting a coroutine into the ready queue twice could under 459 - putting a coroutine into the ready queue twice could under
16 some circumstances lead to stack corruption. 460 some circumstances lead to stack corruption.
22 - removed timers from Coro::Timer -> use AnyEvent instead. 466 - removed timers from Coro::Timer -> use AnyEvent instead.
23 - replaced Coro::idle coroutine by (cleaner) idle handler. 467 - replaced Coro::idle coroutine by (cleaner) idle handler.
24 - updated to newest libcoro. 468 - updated to newest libcoro.
25 - implement enhanced support for valgrind. 469 - implement enhanced support for valgrind.
26 - implement is_ready and return value for ready. 470 - implement is_ready and return value for ready.
471 - removed Coro::Cont, it was a misnomer (it's generators),
472 and it was somewhat annoying to get it right. Will come back
473 if somebody asks for it :)
27 - many ->wait methods and Coro::Event could return 474 - many ->wait methods and Coro::Event could return
28 spuriously without the event having happened. 475 spuriously without the event having happened.
29 476
302.5 Tue Nov 7 12:22:33 CET 2006 4772.5 Tue Nov 7 12:22:33 CET 2006
31 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket 478 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket

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