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Comparing Coro/Changes (file contents):
Revision 1.134 by root, Wed Nov 1 22:02:45 2006 UTC vs.
Revision 1.360 by root, Sun Jun 15 22:31:33 2008 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: possibly convert some of the Event modules into AnyEvent users. 3TODO: should explore PerlIO::via::CoroCede and PerlIO::via::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
84.743 Mon Jun 16 00:21:57 CEST 2008
9 - when using Coro::EV without running EV::loop it could
10 result in busy-waiting for events, this has been fixed.
11 - reduce codesize and improve performance by using EV_DEFAULT_UC.
12
134.742 Sat May 31 14:10:21 CEST 2008
14 - implement a workaround for (some) perl <5.8.8 versions.
15 - require EV 3.3+.
16
174.741 Fri May 30 23:33:09 CEST 2008
18 - tell netbsd how utterly broken their imitation of an OS is
19 and refuse to build by default if pthreads are in use.
20 - switch to "s" method on all bsd's by default, as their ucontext
21 stuff seems just too broken.
22 - fix a bug in Coro::Select.
23
244.74 Thu May 29 20:05:31 CEST 2008
25 - do not test Coro::LWP for lack of dependencies.
26 - do not test Coro::Select for lack of working perls.
27
284.73 Thu May 29 2008
29 - fix a bug in Coro::EV which would cause it to block despite
30 there being runnable coroutines.
31 - sprinkle "no warnings" freely over everything, also suppress
32 warnings for some other modules.
33 - fix typo in WSAEWOULDBLOCK.
34
354.72 Sun May 25 05:14:36 CEST 2008
36 - tweak META.yaml a bit, unfortunately, there is no documented way
37 to have optional dependencies with CPAN. doh :(
38 - avoid running some tests on windows because they would fail due to
39 perl bug (broken fork, broken pipes...).
40 - work around perl on windows bugs where perl returns undocumented
41 error codes for sysread, syswrite etc. by taking advantage
42 of AnyEvent's workaround for that problem.
43 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
44 a common perl implementation bug on windows.
45 - use unix domain sockets in testsuite to work around
46 common perl implementation bugs on widows (they are emulated by
47 tcp sockets on windows. ugh.)
48
494.71 Sat May 24 20:01:27 CEST 2008
50 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
51 - take advantage of async name resolution of AnyEvent::Util.
52 - work around brutal inet_aton override in Coro::LWP.
53 - take advantage of the readyhook in Coro::EV, for smoother
54 scheduling.
55
564.7 Sun May 11 00:32:19 CEST 2008
57 - completely reworked the Coro manpage.
58 - added Coro::AnyEvent, generic event loop integration.
59 - implement cancel, ready and kill commands in Coro::Debug.
60 - document find_coro in Coro::Debug.
61 - incompatible change: rename has_stack to has_cctx.
62 - Coro::AIO and Coro::BDB no longer force event model detection,
63 use AnyEvent::AIO and AnyEvent::BDB.
64
654.6 Sat Apr 26 10:05:14 CEST 2008
66 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
67 by the Coro module. It was a mistake to have it in the first place.
68 - (experimental) support for activestate perl 5.10 (method "w").
69 - (experimental) support for strawberry perl (method "a").
70 - coro_sigelem_set did not return a value although it had to,
71 actual impact unknown.
72
734.51 Mon Apr 14 13:28:27 CEST 2008
74 - make it compile again on 5.8.
75
764.50 Thu Apr 10 09:43:17 CEST 2008
77 - I did it twice! (see 4.49).
78
794.49 Sun Apr 6 21:23:31 CEST 2008
80 - grr, instead of compiling the recent changes on 5.10 only they
81 were compiled on 5.8 only.
82
834.48 Sun Apr 6 20:36:46 CEST 2008
84 - allow coroutine switches during eval's under 5.10.x, as it seems
85 the parser is a per-interpreter option now, so this is safe
86 (this might fix the odd crashing bug).
87 - drop support for 5.9.x versions: they are dead, jim.
88
894.47 Sun Apr 6 00:37:52 CEST 2008
90 - force cctx allocation on API calls: we know we need to force one
91 and gcc actually manages to confuse our heuristic nowadays,
92 leading to crashes and worse.
93 - document force_cctx.
94
954.46 Fri Apr 4 22:05:43 CEST 2008
96 - upgrade libcoro, resulting in pthread-backend (which was only created
97 to fulfill the rules of the programming languages shootout).
98
994.45 Thu Mar 13 11:55:36 CET 2008
100 - fix a file leaking bug in eg/mhyttpd that would allow
101 downloading of any file (reported by oesi).
102 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
103 (also add testcase).
104 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
105 apparently having loads of fun with that).
106 - implement $state->swap_defsv, ->swap_defav and document ->throw.
107
1084.4 Wed Feb 13 16:44:29 CET 2008
109 - only assume .cfi pseudo isns exist on GNU/Linux.
110 - add get_timed method to Coro::Channels.
111 - fixed Coro::Debug manpage.
112 - perl 5.11 compatbility improvement based on patch by
113 Andreas König.
114
1154.37 Sun Jan 20 11:25:23 CET 2008
116 - soften the check for an active parser for perl 5.10 (avoiding
117 "Coro::State::transfer called while parsing" in many cases).
118
1194.36 Sun Jan 13 10:53:56 CET 2008
120 - reset diehook when terminating from an async_pool as to not
121 trigger any __DIE__ handlers.
122
1234.35 Sun Jan 13 04:14:13 CET 2008
124 - "bt" debug command now displays any exceptions
125 from longmess and also skips the innermost
126 stackframes, giving more useufl output.
127 - allow backtraces in coroutines blocked in Coro::EV,
128 at a <1% speed hit.
129 - handle localising of $SIG{__WARN__} and __DIE__
130 properly (with a proper amount of dirty hacking).
131
1324.34 Sat Dec 22 17:49:53 CET 2007
133 - upgrade to EV version 2.0 API.
134
1354.33 Mon Dec 17 08:36:12 CET 2007
136 - make Coro::AIO etc. loadable in the absence of EV.
137
1384.32 Mon Dec 17 07:46:02 CET 2007
139 - majorly improved Coro::Handle's performance with Coro::EV.
140 - implemented the until now mythical Coro::BDB module.
141 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
142
1434.31 Wed Dec 5 12:32:39 CET 2007
144 - remove warn statement form Coro::Util.
145
1464.3 Tue Dec 4 20:33:14 CET 2007
147 - calls to the idle function could cause stack corruption
148 when the stack changed.
149 - do no longer rely on the presence of EV::DNS if EV is used
150 (because it is gone), but instead take avdantage of EV::ADNS
151 if available.
152 - add ($) prototypes to all functions in Coro::Storable.
153 - use a conventional (safer) idle callback in Coro::EV.
154 - do accept quickly in Coro::Debug to avoid endless loops.
155
1564.22 Fri Nov 30 16:04:04 CET 2007
157 - really use optimised versions for Event and EV in Coro::Util
158 and Coro::Handle.
159
1604.21 Sun Nov 25 10:48:59 CET 2007
161 - fix a spurious memory read.
162 - Coro::EV no longer keeps the eventloop "alive".
163
1644.2 Fri Nov 9 20:47:05 CET 2007
165 - enable/disable tracing from a new coroutine, not a pooled one.
166 - fix a memleak in Coro::Event.
167 - removed killall call from fork_eval.
168 - made sure store_fd is already loaded so that fork_eval
169 does not have to parse autoload in each subprocess.
170 - only use assembly method if -O switch is in $Config{optimize}.
171 - add (optional) Coro::EV module, so far the best event loop module
172 directly supported by Coro.
173 - if the event model is EV, use EV::DNS to resolve
174 stuff in Coro::Util.
175 - don't get confused by multiple event notifications in Coro::Handle.
176 - initial support for EV (libevent interface).
177 - require Event and EV using configure_requires, to force their existance.
178
1794.13 Wed Oct 24 07:26:45 CEST 2007
180 - add Coro::Storable::blocking_thaw.
181 - use a vastly more complicated technique to localise
182 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
183 - use a coroutine for the idle callback Coro::Event,
184 instead of running Event in the current coroutine context.
185 This also catches recursive invocations.
186 - actually report fork errors in gethostbyname and inet_aton.
187
1884.11 Thu Oct 11 02:40:24 CEST 2007
189 - port to threaded perls.
190
1914.1 Thu Oct 11 02:38:16 CEST 2007
192 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
193 be local to each coro (see Coro::State).
194 - incompatible change: for very deep reasons, cede and cede_notself
195 cannot return anything, so nothing will be returned.
196 - possibly bring back 5.10 compatibility (untested).
197 - work around stupid (and wrong) warning on 5.10 :(.
198 - overlay the saved state over the context stack. This saves
199 a few hundred bytes per coroutine on average and also
200 speeds up context switching a bit.
201 - further tune default stack sizes.
202 - (more) correctly calculate stack usage in coro_rss.
203 - Coro::Storable::blocking_* did not properly lock
204 resulting in races between coroutines.
205 - added Coro::Storable::guard.
206 - stopping to trace a coroutine could destroy the cctx of
207 an unrelated coroutine.
208 - explain the relationship between Perl and C coroutines in
209 more detail in Coro::State.
210 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
211 causing a fork per resolve. This also affected Coro::Socket.
212 - switch to a separate stack in $coro->call/eval to avoid
213 invalidating pointers.
214
2154.03 Sat Oct 6 21:24:00 CEST 2007
216 - added Coro::throw method.
217 - minor code cleanups.
218
2194.02 Sat Oct 6 02:36:47 CEST 2007
220 - fix a very minor per-coroutine memleak (a single codereference).
221 - fixed a bug where the currently in-use c context would be freed
222 prematurely (can happen only when programs change the stacksize
223 or use tracing).
224 - tracing can no longer keep a coro alive after it terminated.
225 - do static branch prediction in the common path for gcc. gives
226 about 2-5% speed improvement here.
227
2284.01 Fri Oct 5 22:10:49 CEST 2007
229 - instead of recreating *a* standard output handle we simply
230 use STDOUT, which is faster and hopefully more robust.
231
2324.0 Fri Oct 5 12:56:00 CEST 2007
233 - incompatibly changed Coro::Storable::freeze.
234 - major new feature: added Coro::Debug, for interactive coroutine
235 debugging, tracing and much more.
236 - major bug fix: unbelievable, but true: $_, $/ and many other
237 "saved" variables actually weren't being saved. This has been fixed,
238 of course, while increasing performance while losing all the save
239 flags.
240 - save flags are gone, and all the api functions dealing with them.
241 - added Coro::Semaphore::adjust.
242 - added Coro::Util::fork_eval.
243 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
244 - added Coro::killall.
245 - reduce initial stack sizes to allow for "micro-coroutines".
246 - better async_pool resource management, moved parts of async_pool
247 handling to XS (major speed improvement).
248 - actually croak before modifying important data structures.
249 - refuse to transfer while compiling.
250 - possibly support eval EXPR better now.
251 - enable assembly per default on linux+bsd x86+amd64.
252 - all internal members were renamed _something for easier subclassing.
253 - many minor tweaks.
254
2553.63 Wed May 16 14:10:06 CEST 2007
256 - implement handcoded assembly for x86/amd64 SVR ABI.
257
2583.62 Fri Apr 27 21:36:06 CEST 2007
259 - upgrade libcoro (which might set unwind info correctly).
260 - change default on linux to setjmp/longjmp.
261
2623.61 Thu Apr 19 12:36:18 CEST 2007
263 - Coro::Storable caused an endless loop when thawing invalid
264 pst's sometimes.
265 - use a Semaphore in Coro::Storable, as Storable doesn't
266 seem to be reentrant (although it is documented to
267 be threadsafe...).
268 - fix Coro::Signal to bring back the original unreliable
269 but stateful semantics.
270 - fixed a lot of typos in Coro.pm (patch submitted by David
271 Steinbrunner, which applied flawlessly).
272
2733.6 Sat Apr 14 17:13:31 CEST 2007
274 - added some bugfixes to get eg/myhttpd working again.
275 - added Coro::Storable for often-cede'ing freeze/thaw.
276 - try to do a clean exit when a coroutine calls exit
277 (EXPERIMENTAL).
278 - got rid of indirect call through _coro_init.
279 - updated the partly antique examples in eg/ to
280 work again and be a bit less magic, too.
281 - fixed Coro::Signal semantics to work as documented again.
282
2833.55 Sun Mar 25 01:20:47 CET 2007
284 - add SAVE_DEFFH to save the default filehandle and enable
285 it by default.
286 - finally move socket-operations from Coro::Socket to Coro::Handle
287 to be able to unblock foreign sockets.
288 - add Coro::State::save_also and guarded_save.
289 - add count accessor to Coro::Semaphore.
290 - add Coro::State::cctx_stacksize.
291 - just for the fun of it, do not rely on implicit context,
292 which can dramatically improve performance, but people
293 using windows-process-emulation perls do not care much about
294 performance.
295
2963.51 Sun Mar 4 14:18:04 CET 2007
297 - fixed a problem when you weakened references to Coro::State's
298 (patch by Yuval Kogman).
299
3003.501 Wed Feb 28 12:44:07 CET 2007
301 - rename some global symbols as macosx from hell redefines
302 them without asking.
303
3043.5 Tue Feb 13 20:22:53 CET 2007
305 - do AnyEvent model detection earlier, avoiding problems
306 caused by first using AnyEvent and later Coro::Event.
307 - implement and document Coro::Event event objects.
308 - fix a potential problem in Coro::Event causing crashes.
309 - initialise PL_comppad when creating a new coroutine,
310 avoids crashes on early coro destruction.
311
3123.41 Mon Jan 22 19:19:49 CET 2007
313 - readline on Coro::Handle did not support undefined $/,
314 nor did it deliver partial lines on EOF or error.
315 - implement malloc fallback for stack allocation because
316 stupid broken idiotic OSX has a stupid broken
317 idiotic fits-the-whole-os mmap "implementation" and
318 my dick feels longer if Coro is portable even to
319 obsolete platforms.
320
3213.4 Fri Jan 19 21:52:54 CET 2007
322 - remove t/09_timer.t, as it isn't really testing much
323 but was rather flaky in practise.
324 - async_pool coro would keep arguments and callback alive until
325 it was reused.
326 - cancellation of a coroutine could cause spurious idle calls
327 in cede_notself.
328
3293.3 Sat Jan 6 03:45:00 CET 2007
330 - implement $coro->on_destroy.
331 - Coro::Event blocking semantics have been changed,
332 documented and - hopefully - improved.
333 - fix nice adding, not subtracting, from priority.
334 - fix ->prio and api_is_ready (patch by Mark Hinds).
335 - fixed an assert ("... == prev__cctx->idle_te")
336 that could errronously trigger.
337 - fix various large and small memleaks.
338 - use a (hopefully) more stable cancel implementation
339 that immediately frees the coroutine data.
340 - cede/cede_notself return a status now.
341 - added Coro::guard function.
342 - added a global coroutine pool for jobs (on my machine,
343 I can create and execute 48k simple coros/s with async,
344 and 128k coros with async_pool).
345 - Coro::AIO now uses the coroutine priority as io priority.
346
3473.2 Fri Dec 22 05:07:09 CET 2006
348 - improve portability to slightly older perls.
349 - use cleaner coroutine destruction.
350 - simplify configuration for users.
351 - optionally (unrecommended) prefer perl functions over
352 their coro replacements.
353
3543.11 Tue Dec 5 13:11:24 CET 2006
355 - fixed some bogus assert's, but as perl.h disables assert even
356 without NDEBUG (thank you very much), not too many people should
357 notice (that did include myself). Andreas König noticed, though :)
358 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
359 it. Also noticed by Andreas König :)
360 - save/restore tainted status.
361 - verified to pass the testsuite on my 5.9.5.
362
3633.1 Mon Dec 4 23:03:40 CET 2006
364 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
365 - incompatible change: transfer flags are now per-state.
366 - give a better error message on deadlock.
367 - document Coro::nready.
368 - enhanced testsuite.
369
3703.01 Sun Dec 3 23:47:42 CET 2006
371 - forgot to include Coro::Timer.
372
3733.0 Sun Dec 3 22:57:25 CET 2006
374 - the "FINALLY COMPLETELY STABLE" release (coming soon:
375 the "FAMOUS LAST WORDS" release).
376 - implement a new stack sharing algorithm, which uses a stack
377 pool (size currently hardcoded).
378 - make stack sharing mandatory (it no longer uses a heuristic).
379 - eval/die no longer cause weird problems under heavy use.
380 - Coro::Event could cause livelocks if it was used but
381 no Coro::Event watchers were used.
382 - Coro::Event now uses asynccheck as prepare does not
383 check for changed watchers.
384 - Coro::Event allows multiple waiting coros and will wake up one
385 per event.
386 - Coro::Event should be cleaner and more efficient now.
387 - new utility function Coro::unblock_sub.
388 - document the sad fact that Event is no longer reentrant.
389 - putting a coroutine into the ready queue twice could under
390 some circumstances lead to stack corruption.
391 - minor incompatibility: subclassing Coro::State is supported
392 directly now without going through a _coro_state member.
393 - state/coro switching is much faster now.
394 - very minor optimisations and code/documentation cleanup.
395 - avoid problems due to compiler inlining.
396 - removed timers from Coro::Timer -> use AnyEvent instead.
397 - replaced Coro::idle coroutine by (cleaner) idle handler.
398 - updated to newest libcoro.
399 - implement enhanced support for valgrind.
400 - implement is_ready and return value for ready.
401 - removed Coro::Cont, it was a misnomer (it's generators),
402 and it was somewhat annoying to get it right. Will come back
403 if somebody asks for it :)
404 - many ->wait methods and Coro::Event could return
405 spuriously without the event having happened.
406
4072.5 Tue Nov 7 12:22:33 CET 2006
408 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
409 use AnyEvent, moved them to Coro/.
410 - added Coro::LWP which contains all the uglyness required to
411 make LWP non-blocking.
412 - should work with perl 5.9.x now (Andreas König made me do it).
413 - fixed another bug in Coro::Select when the timeout was undef.
414 - reuse PL_start_env for all coros, saves some memory per coroutine.
415 - manage PL_top_env differently, hopefully to avoid panic: top_env.
416 - timeout argument was not properly used in Coro::Socket.
417 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
418 - emulate undocumented(!) functionality of IO::Socket required
419 by LWP(!!).
420 - updated eg/lwp to work with newer lwp's.
421 - remove "FATAL: uncaught exception" prefix. Coroutines that die
422 kill the whole process, just as exceptions in the main "coroutine"
423 did already.
4 424
52.1 Wed Nov 1 23:01:13 CET 2006 4252.1 Wed Nov 1 23:01:13 CET 2006
6 - fix a long-standing bug in Coro::Select where select with 426 - fix a long-standing bug in Coro::Select where select with
7 zero timeout would instead change the current default filehandle. 427 zero timeout would instead change the current default filehandle.
8 - use a simpler and hopefully more robust way to clone padlists 428 - use a simpler and hopefully more robust way to clone padlists

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