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Comparing Coro/Changes (file contents):
Revision 1.123 by root, Mon Dec 26 18:48:11 2005 UTC vs.
Revision 1.374 by root, Wed Sep 24 21:20:05 2008 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
31.7 3TODO: should explore PerlIO::coroaio.
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
84.748
9 - implement, but do not document, PerlIO::cede(granularity).
10 - Coro::Storable forgot to wrap Storable::pstore.
11 - work around the multitude of leaks and memory corruption
12 bugs in PerlIO::via by using our own C-level perliol.
13
144.747 Tue Sep 23 01:59:41 CEST 2008
15 - fix a per-cv memleak (one empty array was leaked per
16 code reference).
17 - avoid a crash in coro->call|rss when the coroutine was already
18 destroyed (most noticably when using Coro::Debug::ps :)
19 - also protect *Storable::FILE.
20 - push up default storable granularity to 20ms.
21
224.746 Sun Sep 21 03:22:20 CEST 2008
23 - be more insistent on locking Storable against reentrancy
24 in Coro::Storable.
25 - move swap_def?v and throw to Coro::State, as documented.
26
274.745 Thu Jul 24 00:14:38 CEST 2008
28 - remove debugging code related to MgPV_nolen_const, also try to
29 make it compile with perl 5.8.6 (yes, apple apparently loves
30 outdated software). Reported by John S.
31
324.744 Tue Jul 8 22:06:35 CEST 2008
33 - correctly provide default DIE/WARN handlers as documented.
34 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
35 implementations inside perl work fine for us.
36
374.743 Mon Jun 16 00:21:57 CEST 2008
38 - when using Coro::EV without running EV::loop it could
39 result in busy-waiting for events, this has been fixed.
40 - reduce codesize and improve performance by using EV_DEFAULT_UC.
41
424.742 Sat May 31 14:10:21 CEST 2008
43 - implement a workaround for (some) perl <5.8.8 versions.
44 - require EV 3.3+.
45
464.741 Fri May 30 23:33:09 CEST 2008
47 - tell netbsd how utterly broken their imitation of an OS is
48 and refuse to build by default if pthreads are in use.
49 - switch to "s" method on all bsd's by default, as their ucontext
50 stuff seems just too broken.
51 - fix a bug in Coro::Select.
52
534.74 Thu May 29 20:05:31 CEST 2008
54 - do not test Coro::LWP for lack of dependencies.
55 - do not test Coro::Select for lack of working perls.
56
574.73 Thu May 29 2008
58 - fix a bug in Coro::EV which would cause it to block despite
59 there being runnable coroutines.
60 - sprinkle "no warnings" freely over everything, also suppress
61 warnings for some other modules.
62 - fix typo in WSAEWOULDBLOCK.
63
644.72 Sun May 25 05:14:36 CEST 2008
65 - tweak META.yaml a bit, unfortunately, there is no documented way
66 to have optional dependencies with CPAN. doh :(
67 - avoid running some tests on windows because they would fail due to
68 perl bug (broken fork, broken pipes...).
69 - work around perl on windows bugs where perl returns undocumented
70 error codes for sysread, syswrite etc. by taking advantage
71 of AnyEvent's workaround for that problem.
72 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
73 a common perl implementation bug on windows.
74 - use unix domain sockets in testsuite to work around
75 common perl implementation bugs on widows (they are emulated by
76 tcp sockets on windows. ugh.)
77
784.71 Sat May 24 20:01:27 CEST 2008
79 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
80 - take advantage of async name resolution of AnyEvent::Util.
81 - work around brutal inet_aton override in Coro::LWP.
82 - take advantage of the readyhook in Coro::EV, for smoother
83 scheduling.
84
854.7 Sun May 11 00:32:19 CEST 2008
86 - completely reworked the Coro manpage.
87 - added Coro::AnyEvent, generic event loop integration.
88 - implement cancel, ready and kill commands in Coro::Debug.
89 - document find_coro in Coro::Debug.
90 - incompatible change: rename has_stack to has_cctx.
91 - Coro::AIO and Coro::BDB no longer force event model detection,
92 use AnyEvent::AIO and AnyEvent::BDB.
93
944.6 Sat Apr 26 10:05:14 CEST 2008
95 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
96 by the Coro module. It was a mistake to have it in the first place.
97 - (experimental) support for activestate perl 5.10 (method "w").
98 - (experimental) support for strawberry perl (method "a").
99 - coro_sigelem_set did not return a value although it had to,
100 actual impact unknown.
101
1024.51 Mon Apr 14 13:28:27 CEST 2008
103 - make it compile again on 5.8.
104
1054.50 Thu Apr 10 09:43:17 CEST 2008
106 - I did it twice! (see 4.49).
107
1084.49 Sun Apr 6 21:23:31 CEST 2008
109 - grr, instead of compiling the recent changes on 5.10 only they
110 were compiled on 5.8 only.
111
1124.48 Sun Apr 6 20:36:46 CEST 2008
113 - allow coroutine switches during eval's under 5.10.x, as it seems
114 the parser is a per-interpreter option now, so this is safe
115 (this might fix the odd crashing bug).
116 - drop support for 5.9.x versions: they are dead, jim.
117
1184.47 Sun Apr 6 00:37:52 CEST 2008
119 - force cctx allocation on API calls: we know we need to force one
120 and gcc actually manages to confuse our heuristic nowadays,
121 leading to crashes and worse.
122 - document force_cctx.
123
1244.46 Fri Apr 4 22:05:43 CEST 2008
125 - upgrade libcoro, resulting in pthread-backend (which was only created
126 to fulfill the rules of the programming languages shootout).
127
1284.45 Thu Mar 13 11:55:36 CET 2008
129 - fix a file leaking bug in eg/mhyttpd that would allow
130 downloading of any file (reported by oesi).
131 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
132 (also add testcase).
133 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
134 apparently having loads of fun with that).
135 - implement $state->swap_defsv, ->swap_defav and document ->throw.
136
1374.4 Wed Feb 13 16:44:29 CET 2008
138 - only assume .cfi pseudo isns exist on GNU/Linux.
139 - add get_timed method to Coro::Channels.
140 - fixed Coro::Debug manpage.
141 - perl 5.11 compatbility improvement based on patch by
142 Andreas König.
143
1444.37 Sun Jan 20 11:25:23 CET 2008
145 - soften the check for an active parser for perl 5.10 (avoiding
146 "Coro::State::transfer called while parsing" in many cases).
147
1484.36 Sun Jan 13 10:53:56 CET 2008
149 - reset diehook when terminating from an async_pool as to not
150 trigger any __DIE__ handlers.
151
1524.35 Sun Jan 13 04:14:13 CET 2008
153 - "bt" debug command now displays any exceptions
154 from longmess and also skips the innermost
155 stackframes, giving more useufl output.
156 - allow backtraces in coroutines blocked in Coro::EV,
157 at a <1% speed hit.
158 - handle localising of $SIG{__WARN__} and __DIE__
159 properly (with a proper amount of dirty hacking).
160
1614.34 Sat Dec 22 17:49:53 CET 2007
162 - upgrade to EV version 2.0 API.
163
1644.33 Mon Dec 17 08:36:12 CET 2007
165 - make Coro::AIO etc. loadable in the absence of EV.
166
1674.32 Mon Dec 17 07:46:02 CET 2007
168 - majorly improved Coro::Handle's performance with Coro::EV.
169 - implemented the until now mythical Coro::BDB module.
170 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
171
1724.31 Wed Dec 5 12:32:39 CET 2007
173 - remove warn statement form Coro::Util.
174
1754.3 Tue Dec 4 20:33:14 CET 2007
176 - calls to the idle function could cause stack corruption
177 when the stack changed.
178 - do no longer rely on the presence of EV::DNS if EV is used
179 (because it is gone), but instead take avdantage of EV::ADNS
180 if available.
181 - add ($) prototypes to all functions in Coro::Storable.
182 - use a conventional (safer) idle callback in Coro::EV.
183 - do accept quickly in Coro::Debug to avoid endless loops.
184
1854.22 Fri Nov 30 16:04:04 CET 2007
186 - really use optimised versions for Event and EV in Coro::Util
187 and Coro::Handle.
188
1894.21 Sun Nov 25 10:48:59 CET 2007
190 - fix a spurious memory read.
191 - Coro::EV no longer keeps the eventloop "alive".
192
1934.2 Fri Nov 9 20:47:05 CET 2007
194 - enable/disable tracing from a new coroutine, not a pooled one.
195 - fix a memleak in Coro::Event.
196 - removed killall call from fork_eval.
197 - made sure store_fd is already loaded so that fork_eval
198 does not have to parse autoload in each subprocess.
199 - only use assembly method if -O switch is in $Config{optimize}.
200 - add (optional) Coro::EV module, so far the best event loop module
201 directly supported by Coro.
202 - if the event model is EV, use EV::DNS to resolve
203 stuff in Coro::Util.
204 - don't get confused by multiple event notifications in Coro::Handle.
205 - initial support for EV (libevent interface).
206 - require Event and EV using configure_requires, to force their existance.
207
2084.13 Wed Oct 24 07:26:45 CEST 2007
209 - add Coro::Storable::blocking_thaw.
210 - use a vastly more complicated technique to localise
211 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
212 - use a coroutine for the idle callback Coro::Event,
213 instead of running Event in the current coroutine context.
214 This also catches recursive invocations.
215 - actually report fork errors in gethostbyname and inet_aton.
216
2174.11 Thu Oct 11 02:40:24 CEST 2007
218 - port to threaded perls.
219
2204.1 Thu Oct 11 02:38:16 CEST 2007
221 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
222 be local to each coro (see Coro::State).
223 - incompatible change: for very deep reasons, cede and cede_notself
224 cannot return anything, so nothing will be returned.
225 - possibly bring back 5.10 compatibility (untested).
226 - work around stupid (and wrong) warning on 5.10 :(.
227 - overlay the saved state over the context stack. This saves
228 a few hundred bytes per coroutine on average and also
229 speeds up context switching a bit.
230 - further tune default stack sizes.
231 - (more) correctly calculate stack usage in coro_rss.
232 - Coro::Storable::blocking_* did not properly lock
233 resulting in races between coroutines.
234 - added Coro::Storable::guard.
235 - stopping to trace a coroutine could destroy the cctx of
236 an unrelated coroutine.
237 - explain the relationship between Perl and C coroutines in
238 more detail in Coro::State.
239 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
240 causing a fork per resolve. This also affected Coro::Socket.
241 - switch to a separate stack in $coro->call/eval to avoid
242 invalidating pointers.
243
2444.03 Sat Oct 6 21:24:00 CEST 2007
245 - added Coro::throw method.
246 - minor code cleanups.
247
2484.02 Sat Oct 6 02:36:47 CEST 2007
249 - fix a very minor per-coroutine memleak (a single codereference).
250 - fixed a bug where the currently in-use c context would be freed
251 prematurely (can happen only when programs change the stacksize
252 or use tracing).
253 - tracing can no longer keep a coro alive after it terminated.
254 - do static branch prediction in the common path for gcc. gives
255 about 2-5% speed improvement here.
256
2574.01 Fri Oct 5 22:10:49 CEST 2007
258 - instead of recreating *a* standard output handle we simply
259 use STDOUT, which is faster and hopefully more robust.
260
2614.0 Fri Oct 5 12:56:00 CEST 2007
262 - incompatibly changed Coro::Storable::freeze.
263 - major new feature: added Coro::Debug, for interactive coroutine
264 debugging, tracing and much more.
265 - major bug fix: unbelievable, but true: $_, $/ and many other
266 "saved" variables actually weren't being saved. This has been fixed,
267 of course, while increasing performance while losing all the save
268 flags.
269 - save flags are gone, and all the api functions dealing with them.
270 - added Coro::Semaphore::adjust.
271 - added Coro::Util::fork_eval.
272 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
273 - added Coro::killall.
274 - reduce initial stack sizes to allow for "micro-coroutines".
275 - better async_pool resource management, moved parts of async_pool
276 handling to XS (major speed improvement).
277 - actually croak before modifying important data structures.
278 - refuse to transfer while compiling.
279 - possibly support eval EXPR better now.
280 - enable assembly per default on linux+bsd x86+amd64.
281 - all internal members were renamed _something for easier subclassing.
282 - many minor tweaks.
283
2843.63 Wed May 16 14:10:06 CEST 2007
285 - implement handcoded assembly for x86/amd64 SVR ABI.
286
2873.62 Fri Apr 27 21:36:06 CEST 2007
288 - upgrade libcoro (which might set unwind info correctly).
289 - change default on linux to setjmp/longjmp.
290
2913.61 Thu Apr 19 12:36:18 CEST 2007
292 - Coro::Storable caused an endless loop when thawing invalid
293 pst's sometimes.
294 - use a Semaphore in Coro::Storable, as Storable doesn't
295 seem to be reentrant (although it is documented to
296 be threadsafe...).
297 - fix Coro::Signal to bring back the original unreliable
298 but stateful semantics.
299 - fixed a lot of typos in Coro.pm (patch submitted by David
300 Steinbrunner, which applied flawlessly).
301
3023.6 Sat Apr 14 17:13:31 CEST 2007
303 - added some bugfixes to get eg/myhttpd working again.
304 - added Coro::Storable for often-cede'ing freeze/thaw.
305 - try to do a clean exit when a coroutine calls exit
306 (EXPERIMENTAL).
307 - got rid of indirect call through _coro_init.
308 - updated the partly antique examples in eg/ to
309 work again and be a bit less magic, too.
310 - fixed Coro::Signal semantics to work as documented again.
311
3123.55 Sun Mar 25 01:20:47 CET 2007
313 - add SAVE_DEFFH to save the default filehandle and enable
314 it by default.
315 - finally move socket-operations from Coro::Socket to Coro::Handle
316 to be able to unblock foreign sockets.
317 - add Coro::State::save_also and guarded_save.
318 - add count accessor to Coro::Semaphore.
319 - add Coro::State::cctx_stacksize.
320 - just for the fun of it, do not rely on implicit context,
321 which can dramatically improve performance, but people
322 using windows-process-emulation perls do not care much about
323 performance.
324
3253.51 Sun Mar 4 14:18:04 CET 2007
326 - fixed a problem when you weakened references to Coro::State's
327 (patch by Yuval Kogman).
328
3293.501 Wed Feb 28 12:44:07 CET 2007
330 - rename some global symbols as macosx from hell redefines
331 them without asking.
332
3333.5 Tue Feb 13 20:22:53 CET 2007
334 - do AnyEvent model detection earlier, avoiding problems
335 caused by first using AnyEvent and later Coro::Event.
336 - implement and document Coro::Event event objects.
337 - fix a potential problem in Coro::Event causing crashes.
338 - initialise PL_comppad when creating a new coroutine,
339 avoids crashes on early coro destruction.
340
3413.41 Mon Jan 22 19:19:49 CET 2007
342 - readline on Coro::Handle did not support undefined $/,
343 nor did it deliver partial lines on EOF or error.
344 - implement malloc fallback for stack allocation because
345 stupid broken idiotic OSX has a stupid broken
346 idiotic fits-the-whole-os mmap "implementation" and
347 my dick feels longer if Coro is portable even to
348 obsolete platforms.
349
3503.4 Fri Jan 19 21:52:54 CET 2007
351 - remove t/09_timer.t, as it isn't really testing much
352 but was rather flaky in practise.
353 - async_pool coro would keep arguments and callback alive until
354 it was reused.
355 - cancellation of a coroutine could cause spurious idle calls
356 in cede_notself.
357
3583.3 Sat Jan 6 03:45:00 CET 2007
359 - implement $coro->on_destroy.
360 - Coro::Event blocking semantics have been changed,
361 documented and - hopefully - improved.
362 - fix nice adding, not subtracting, from priority.
363 - fix ->prio and api_is_ready (patch by Mark Hinds).
364 - fixed an assert ("... == prev__cctx->idle_te")
365 that could errronously trigger.
366 - fix various large and small memleaks.
367 - use a (hopefully) more stable cancel implementation
368 that immediately frees the coroutine data.
369 - cede/cede_notself return a status now.
370 - added Coro::guard function.
371 - added a global coroutine pool for jobs (on my machine,
372 I can create and execute 48k simple coros/s with async,
373 and 128k coros with async_pool).
374 - Coro::AIO now uses the coroutine priority as io priority.
375
3763.2 Fri Dec 22 05:07:09 CET 2006
377 - improve portability to slightly older perls.
378 - use cleaner coroutine destruction.
379 - simplify configuration for users.
380 - optionally (unrecommended) prefer perl functions over
381 their coro replacements.
382
3833.11 Tue Dec 5 13:11:24 CET 2006
384 - fixed some bogus assert's, but as perl.h disables assert even
385 without NDEBUG (thank you very much), not too many people should
386 notice (that did include myself). Andreas König noticed, though :)
387 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
388 it. Also noticed by Andreas König :)
389 - save/restore tainted status.
390 - verified to pass the testsuite on my 5.9.5.
391
3923.1 Mon Dec 4 23:03:40 CET 2006
393 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
394 - incompatible change: transfer flags are now per-state.
395 - give a better error message on deadlock.
396 - document Coro::nready.
397 - enhanced testsuite.
398
3993.01 Sun Dec 3 23:47:42 CET 2006
400 - forgot to include Coro::Timer.
401
4023.0 Sun Dec 3 22:57:25 CET 2006
403 - the "FINALLY COMPLETELY STABLE" release (coming soon:
404 the "FAMOUS LAST WORDS" release).
405 - implement a new stack sharing algorithm, which uses a stack
406 pool (size currently hardcoded).
407 - make stack sharing mandatory (it no longer uses a heuristic).
408 - eval/die no longer cause weird problems under heavy use.
409 - Coro::Event could cause livelocks if it was used but
410 no Coro::Event watchers were used.
411 - Coro::Event now uses asynccheck as prepare does not
412 check for changed watchers.
413 - Coro::Event allows multiple waiting coros and will wake up one
414 per event.
415 - Coro::Event should be cleaner and more efficient now.
416 - new utility function Coro::unblock_sub.
417 - document the sad fact that Event is no longer reentrant.
418 - putting a coroutine into the ready queue twice could under
419 some circumstances lead to stack corruption.
420 - minor incompatibility: subclassing Coro::State is supported
421 directly now without going through a _coro_state member.
422 - state/coro switching is much faster now.
423 - very minor optimisations and code/documentation cleanup.
424 - avoid problems due to compiler inlining.
425 - removed timers from Coro::Timer -> use AnyEvent instead.
426 - replaced Coro::idle coroutine by (cleaner) idle handler.
427 - updated to newest libcoro.
428 - implement enhanced support for valgrind.
429 - implement is_ready and return value for ready.
430 - removed Coro::Cont, it was a misnomer (it's generators),
431 and it was somewhat annoying to get it right. Will come back
432 if somebody asks for it :)
433 - many ->wait methods and Coro::Event could return
434 spuriously without the event having happened.
435
4362.5 Tue Nov 7 12:22:33 CET 2006
437 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
438 use AnyEvent, moved them to Coro/.
439 - added Coro::LWP which contains all the uglyness required to
440 make LWP non-blocking.
441 - should work with perl 5.9.x now (Andreas König made me do it).
442 - fixed another bug in Coro::Select when the timeout was undef.
443 - reuse PL_start_env for all coros, saves some memory per coroutine.
444 - manage PL_top_env differently, hopefully to avoid panic: top_env.
445 - timeout argument was not properly used in Coro::Socket.
446 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
447 - emulate undocumented(!) functionality of IO::Socket required
448 by LWP(!!).
449 - updated eg/lwp to work with newer lwp's.
450 - remove "FATAL: uncaught exception" prefix. Coroutines that die
451 kill the whole process, just as exceptions in the main "coroutine"
452 did already.
453
4542.1 Wed Nov 1 23:01:13 CET 2006
455 - fix a long-standing bug in Coro::Select where select with
456 zero timeout would instead change the current default filehandle.
457 - use a simpler and hopefully more robust way to clone padlists
458 (uses less memory and a perl function instead of our own).
459 - coro can now create a stack guard area on many architectures.
460 - Coro::AIO properly reexports additional functions from IO::AIO.
461 - updated libcoro with a workaround for OS X,
462 pach and testing by Michael Schwern.
463
4642.0 Tue Oct 24 05:47:17 CEST 2006
465 - support additional aio requests in Coro::AIO.
466
4671.9 (never properly released due to a glitch)
468
4691.8 Thu Feb 2 00:59:06 CET 2006
470 - applied suggested patch by SAMV to avoid problems during stupid
471 mark & sweep gc run.
472 - applied patch by Scott Walters for 5.9.3 compatibility.
473
4741.7 Tue Dec 27 01:41:58 CET 2005
4 - added Coro::AIO, a thin wrapper around IO::AIO. 475 - added Coro::AIO, a thin wrapper around IO::AIO.
5 - improved Makefile.PL explanations. 476 - improved Makefile.PL explanations.
6 477
71.6 Mon Dec 12 21:30:05 CET 2005 4781.6 Mon Dec 12 21:30:05 CET 2005
8 - additionally save PM_curpm might fix as-of-yet 479 - additionally save PM_curpm might fix as-of-yet

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