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Comparing Coro/Changes (file contents):
Revision 1.145 by root, Tue Nov 7 11:24:18 2006 UTC vs.
Revision 1.359 by root, Sat May 31 12:10:55 2008 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2
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
84.742 Sat May 31 14:10:21 CEST 2008
9 - implement a workaround for (some) perl <5.8.8 versions.
10 - require EV 3.3+.
11
124.741 Fri May 30 23:33:09 CEST 2008
13 - tell netbsd how utterly broken their imitation of an OS is
14 and refuse to build by default if pthreads are in use.
15 - switch to "s" method on all bsd's by default, as their ucontext
16 stuff seems just too broken.
17 - fix a bug in Coro::Select.
18
194.74 Thu May 29 20:05:31 CEST 2008
20 - do not test Coro::LWP for lack of dependencies.
21 - do not test Coro::Select for lack of working perls.
22
234.73 Thu May 29 2008
24 - fix a bug in Coro::EV which would cause it to block despite
25 there being runnable coroutines.
26 - sprinkle "no warnings" freely over everything, also suppress
27 warnings for some other modules.
28 - fix typo in WSAEWOULDBLOCK.
29
304.72 Sun May 25 05:14:36 CEST 2008
31 - tweak META.yaml a bit, unfortunately, there is no documented way
32 to have optional dependencies with CPAN. doh :(
33 - avoid running some tests on windows because they would fail due to
34 perl bug (broken fork, broken pipes...).
35 - work around perl on windows bugs where perl returns undocumented
36 error codes for sysread, syswrite etc. by taking advantage
37 of AnyEvent's workaround for that problem.
38 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
39 a common perl implementation bug on windows.
40 - use unix domain sockets in testsuite to work around
41 common perl implementation bugs on widows (they are emulated by
42 tcp sockets on windows. ugh.)
43
444.71 Sat May 24 20:01:27 CEST 2008
45 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
46 - take advantage of async name resolution of AnyEvent::Util.
47 - work around brutal inet_aton override in Coro::LWP.
48 - take advantage of the readyhook in Coro::EV, for smoother
49 scheduling.
50
514.7 Sun May 11 00:32:19 CEST 2008
52 - completely reworked the Coro manpage.
53 - added Coro::AnyEvent, generic event loop integration.
54 - implement cancel, ready and kill commands in Coro::Debug.
55 - document find_coro in Coro::Debug.
56 - incompatible change: rename has_stack to has_cctx.
57 - Coro::AIO and Coro::BDB no longer force event model detection,
58 use AnyEvent::AIO and AnyEvent::BDB.
59
604.6 Sat Apr 26 10:05:14 CEST 2008
61 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
62 by the Coro module. It was a mistake to have it in the first place.
63 - (experimental) support for activestate perl 5.10 (method "w").
64 - (experimental) support for strawberry perl (method "a").
65 - coro_sigelem_set did not return a value although it had to,
66 actual impact unknown.
67
684.51 Mon Apr 14 13:28:27 CEST 2008
69 - make it compile again on 5.8.
70
714.50 Thu Apr 10 09:43:17 CEST 2008
72 - I did it twice! (see 4.49).
73
744.49 Sun Apr 6 21:23:31 CEST 2008
75 - grr, instead of compiling the recent changes on 5.10 only they
76 were compiled on 5.8 only.
77
784.48 Sun Apr 6 20:36:46 CEST 2008
79 - allow coroutine switches during eval's under 5.10.x, as it seems
80 the parser is a per-interpreter option now, so this is safe
81 (this might fix the odd crashing bug).
82 - drop support for 5.9.x versions: they are dead, jim.
83
844.47 Sun Apr 6 00:37:52 CEST 2008
85 - force cctx allocation on API calls: we know we need to force one
86 and gcc actually manages to confuse our heuristic nowadays,
87 leading to crashes and worse.
88 - document force_cctx.
89
904.46 Fri Apr 4 22:05:43 CEST 2008
91 - upgrade libcoro, resulting in pthread-backend (which was only created
92 to fulfill the rules of the programming languages shootout).
93
944.45 Thu Mar 13 11:55:36 CET 2008
95 - fix a file leaking bug in eg/mhyttpd that would allow
96 downloading of any file (reported by oesi).
97 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
98 (also add testcase).
99 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
100 apparently having loads of fun with that).
101 - implement $state->swap_defsv, ->swap_defav and document ->throw.
102
1034.4 Wed Feb 13 16:44:29 CET 2008
104 - only assume .cfi pseudo isns exist on GNU/Linux.
105 - add get_timed method to Coro::Channels.
106 - fixed Coro::Debug manpage.
107 - perl 5.11 compatbility improvement based on patch by
108 Andreas König.
109
1104.37 Sun Jan 20 11:25:23 CET 2008
111 - soften the check for an active parser for perl 5.10 (avoiding
112 "Coro::State::transfer called while parsing" in many cases).
113
1144.36 Sun Jan 13 10:53:56 CET 2008
115 - reset diehook when terminating from an async_pool as to not
116 trigger any __DIE__ handlers.
117
1184.35 Sun Jan 13 04:14:13 CET 2008
119 - "bt" debug command now displays any exceptions
120 from longmess and also skips the innermost
121 stackframes, giving more useufl output.
122 - allow backtraces in coroutines blocked in Coro::EV,
123 at a <1% speed hit.
124 - handle localising of $SIG{__WARN__} and __DIE__
125 properly (with a proper amount of dirty hacking).
126
1274.34 Sat Dec 22 17:49:53 CET 2007
128 - upgrade to EV version 2.0 API.
129
1304.33 Mon Dec 17 08:36:12 CET 2007
131 - make Coro::AIO etc. loadable in the absence of EV.
132
1334.32 Mon Dec 17 07:46:02 CET 2007
134 - majorly improved Coro::Handle's performance with Coro::EV.
135 - implemented the until now mythical Coro::BDB module.
136 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
137
1384.31 Wed Dec 5 12:32:39 CET 2007
139 - remove warn statement form Coro::Util.
140
1414.3 Tue Dec 4 20:33:14 CET 2007
142 - calls to the idle function could cause stack corruption
143 when the stack changed.
144 - do no longer rely on the presence of EV::DNS if EV is used
145 (because it is gone), but instead take avdantage of EV::ADNS
146 if available.
147 - add ($) prototypes to all functions in Coro::Storable.
148 - use a conventional (safer) idle callback in Coro::EV.
149 - do accept quickly in Coro::Debug to avoid endless loops.
150
1514.22 Fri Nov 30 16:04:04 CET 2007
152 - really use optimised versions for Event and EV in Coro::Util
153 and Coro::Handle.
154
1554.21 Sun Nov 25 10:48:59 CET 2007
156 - fix a spurious memory read.
157 - Coro::EV no longer keeps the eventloop "alive".
158
1594.2 Fri Nov 9 20:47:05 CET 2007
160 - enable/disable tracing from a new coroutine, not a pooled one.
161 - fix a memleak in Coro::Event.
162 - removed killall call from fork_eval.
163 - made sure store_fd is already loaded so that fork_eval
164 does not have to parse autoload in each subprocess.
165 - only use assembly method if -O switch is in $Config{optimize}.
166 - add (optional) Coro::EV module, so far the best event loop module
167 directly supported by Coro.
168 - if the event model is EV, use EV::DNS to resolve
169 stuff in Coro::Util.
170 - don't get confused by multiple event notifications in Coro::Handle.
171 - initial support for EV (libevent interface).
172 - require Event and EV using configure_requires, to force their existance.
173
1744.13 Wed Oct 24 07:26:45 CEST 2007
175 - add Coro::Storable::blocking_thaw.
176 - use a vastly more complicated technique to localise
177 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
178 - use a coroutine for the idle callback Coro::Event,
179 instead of running Event in the current coroutine context.
180 This also catches recursive invocations.
181 - actually report fork errors in gethostbyname and inet_aton.
182
1834.11 Thu Oct 11 02:40:24 CEST 2007
184 - port to threaded perls.
185
1864.1 Thu Oct 11 02:38:16 CEST 2007
187 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
188 be local to each coro (see Coro::State).
189 - incompatible change: for very deep reasons, cede and cede_notself
190 cannot return anything, so nothing will be returned.
191 - possibly bring back 5.10 compatibility (untested).
192 - work around stupid (and wrong) warning on 5.10 :(.
193 - overlay the saved state over the context stack. This saves
194 a few hundred bytes per coroutine on average and also
195 speeds up context switching a bit.
196 - further tune default stack sizes.
197 - (more) correctly calculate stack usage in coro_rss.
198 - Coro::Storable::blocking_* did not properly lock
199 resulting in races between coroutines.
200 - added Coro::Storable::guard.
201 - stopping to trace a coroutine could destroy the cctx of
202 an unrelated coroutine.
203 - explain the relationship between Perl and C coroutines in
204 more detail in Coro::State.
205 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
206 causing a fork per resolve. This also affected Coro::Socket.
207 - switch to a separate stack in $coro->call/eval to avoid
208 invalidating pointers.
209
2104.03 Sat Oct 6 21:24:00 CEST 2007
211 - added Coro::throw method.
212 - minor code cleanups.
213
2144.02 Sat Oct 6 02:36:47 CEST 2007
215 - fix a very minor per-coroutine memleak (a single codereference).
216 - fixed a bug where the currently in-use c context would be freed
217 prematurely (can happen only when programs change the stacksize
218 or use tracing).
219 - tracing can no longer keep a coro alive after it terminated.
220 - do static branch prediction in the common path for gcc. gives
221 about 2-5% speed improvement here.
222
2234.01 Fri Oct 5 22:10:49 CEST 2007
224 - instead of recreating *a* standard output handle we simply
225 use STDOUT, which is faster and hopefully more robust.
226
2274.0 Fri Oct 5 12:56:00 CEST 2007
228 - incompatibly changed Coro::Storable::freeze.
229 - major new feature: added Coro::Debug, for interactive coroutine
230 debugging, tracing and much more.
231 - major bug fix: unbelievable, but true: $_, $/ and many other
232 "saved" variables actually weren't being saved. This has been fixed,
233 of course, while increasing performance while losing all the save
234 flags.
235 - save flags are gone, and all the api functions dealing with them.
236 - added Coro::Semaphore::adjust.
237 - added Coro::Util::fork_eval.
238 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
239 - added Coro::killall.
240 - reduce initial stack sizes to allow for "micro-coroutines".
241 - better async_pool resource management, moved parts of async_pool
242 handling to XS (major speed improvement).
243 - actually croak before modifying important data structures.
244 - refuse to transfer while compiling.
245 - possibly support eval EXPR better now.
246 - enable assembly per default on linux+bsd x86+amd64.
247 - all internal members were renamed _something for easier subclassing.
248 - many minor tweaks.
249
2503.63 Wed May 16 14:10:06 CEST 2007
251 - implement handcoded assembly for x86/amd64 SVR ABI.
252
2533.62 Fri Apr 27 21:36:06 CEST 2007
254 - upgrade libcoro (which might set unwind info correctly).
255 - change default on linux to setjmp/longjmp.
256
2573.61 Thu Apr 19 12:36:18 CEST 2007
258 - Coro::Storable caused an endless loop when thawing invalid
259 pst's sometimes.
260 - use a Semaphore in Coro::Storable, as Storable doesn't
261 seem to be reentrant (although it is documented to
262 be threadsafe...).
263 - fix Coro::Signal to bring back the original unreliable
264 but stateful semantics.
265 - fixed a lot of typos in Coro.pm (patch submitted by David
266 Steinbrunner, which applied flawlessly).
267
2683.6 Sat Apr 14 17:13:31 CEST 2007
269 - added some bugfixes to get eg/myhttpd working again.
270 - added Coro::Storable for often-cede'ing freeze/thaw.
271 - try to do a clean exit when a coroutine calls exit
272 (EXPERIMENTAL).
273 - got rid of indirect call through _coro_init.
274 - updated the partly antique examples in eg/ to
275 work again and be a bit less magic, too.
276 - fixed Coro::Signal semantics to work as documented again.
277
2783.55 Sun Mar 25 01:20:47 CET 2007
279 - add SAVE_DEFFH to save the default filehandle and enable
280 it by default.
281 - finally move socket-operations from Coro::Socket to Coro::Handle
282 to be able to unblock foreign sockets.
283 - add Coro::State::save_also and guarded_save.
284 - add count accessor to Coro::Semaphore.
285 - add Coro::State::cctx_stacksize.
286 - just for the fun of it, do not rely on implicit context,
287 which can dramatically improve performance, but people
288 using windows-process-emulation perls do not care much about
289 performance.
290
2913.51 Sun Mar 4 14:18:04 CET 2007
292 - fixed a problem when you weakened references to Coro::State's
293 (patch by Yuval Kogman).
294
2953.501 Wed Feb 28 12:44:07 CET 2007
296 - rename some global symbols as macosx from hell redefines
297 them without asking.
298
2993.5 Tue Feb 13 20:22:53 CET 2007
300 - do AnyEvent model detection earlier, avoiding problems
301 caused by first using AnyEvent and later Coro::Event.
302 - implement and document Coro::Event event objects.
303 - fix a potential problem in Coro::Event causing crashes.
304 - initialise PL_comppad when creating a new coroutine,
305 avoids crashes on early coro destruction.
306
3073.41 Mon Jan 22 19:19:49 CET 2007
308 - readline on Coro::Handle did not support undefined $/,
309 nor did it deliver partial lines on EOF or error.
310 - implement malloc fallback for stack allocation because
311 stupid broken idiotic OSX has a stupid broken
312 idiotic fits-the-whole-os mmap "implementation" and
313 my dick feels longer if Coro is portable even to
314 obsolete platforms.
315
3163.4 Fri Jan 19 21:52:54 CET 2007
317 - remove t/09_timer.t, as it isn't really testing much
318 but was rather flaky in practise.
319 - async_pool coro would keep arguments and callback alive until
320 it was reused.
321 - cancellation of a coroutine could cause spurious idle calls
322 in cede_notself.
323
3243.3 Sat Jan 6 03:45:00 CET 2007
325 - implement $coro->on_destroy.
326 - Coro::Event blocking semantics have been changed,
327 documented and - hopefully - improved.
328 - fix nice adding, not subtracting, from priority.
329 - fix ->prio and api_is_ready (patch by Mark Hinds).
330 - fixed an assert ("... == prev__cctx->idle_te")
331 that could errronously trigger.
332 - fix various large and small memleaks.
333 - use a (hopefully) more stable cancel implementation
334 that immediately frees the coroutine data.
335 - cede/cede_notself return a status now.
336 - added Coro::guard function.
337 - added a global coroutine pool for jobs (on my machine,
338 I can create and execute 48k simple coros/s with async,
339 and 128k coros with async_pool).
340 - Coro::AIO now uses the coroutine priority as io priority.
341
3423.2 Fri Dec 22 05:07:09 CET 2006
343 - improve portability to slightly older perls.
344 - use cleaner coroutine destruction.
345 - simplify configuration for users.
346 - optionally (unrecommended) prefer perl functions over
347 their coro replacements.
348
3493.11 Tue Dec 5 13:11:24 CET 2006
350 - fixed some bogus assert's, but as perl.h disables assert even
351 without NDEBUG (thank you very much), not too many people should
352 notice (that did include myself). Andreas König noticed, though :)
353 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
354 it. Also noticed by Andreas König :)
355 - save/restore tainted status.
356 - verified to pass the testsuite on my 5.9.5.
357
3583.1 Mon Dec 4 23:03:40 CET 2006
359 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
360 - incompatible change: transfer flags are now per-state.
361 - give a better error message on deadlock.
362 - document Coro::nready.
363 - enhanced testsuite.
364
3653.01 Sun Dec 3 23:47:42 CET 2006
366 - forgot to include Coro::Timer.
367
3683.0 Sun Dec 3 22:57:25 CET 2006
369 - the "FINALLY COMPLETELY STABLE" release (coming soon:
370 the "FAMOUS LAST WORDS" release).
371 - implement a new stack sharing algorithm, which uses a stack
372 pool (size currently hardcoded).
373 - make stack sharing mandatory (it no longer uses a heuristic).
374 - eval/die no longer cause weird problems under heavy use.
375 - Coro::Event could cause livelocks if it was used but
376 no Coro::Event watchers were used.
377 - Coro::Event now uses asynccheck as prepare does not
378 check for changed watchers.
379 - Coro::Event allows multiple waiting coros and will wake up one
380 per event.
381 - Coro::Event should be cleaner and more efficient now.
382 - new utility function Coro::unblock_sub.
383 - document the sad fact that Event is no longer reentrant.
384 - putting a coroutine into the ready queue twice could under
385 some circumstances lead to stack corruption.
386 - minor incompatibility: subclassing Coro::State is supported
387 directly now without going through a _coro_state member.
388 - state/coro switching is much faster now.
389 - very minor optimisations and code/documentation cleanup.
390 - avoid problems due to compiler inlining.
391 - removed timers from Coro::Timer -> use AnyEvent instead.
392 - replaced Coro::idle coroutine by (cleaner) idle handler.
393 - updated to newest libcoro.
394 - implement enhanced support for valgrind.
395 - implement is_ready and return value for ready.
396 - removed Coro::Cont, it was a misnomer (it's generators),
397 and it was somewhat annoying to get it right. Will come back
398 if somebody asks for it :)
399 - many ->wait methods and Coro::Event could return
400 spuriously without the event having happened.
2 401
32.5 Tue Nov 7 12:22:33 CET 2006 4022.5 Tue Nov 7 12:22:33 CET 2006
4 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket 403 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
5 use AnyEvent, moved them to Coro/. 404 use AnyEvent, moved them to Coro/.
6 - added Coro::LWP which contains all the uglyness required to 405 - added Coro::LWP which contains all the uglyness required to

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