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Comparing Coro/Changes (file contents):
Revision 1.120 by root, Mon Dec 12 20:38:17 2005 UTC vs.
Revision 1.351 by root, Sun May 25 01:32:15 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
8 - tweak META.yaml a bit, unfortunately, there is no documented way
9 to have optional dependencies with CPAN. doh :(
10 - avoid running some tests on windows because they would fail due to
11 perl bug (broken fork, broken pipes...).
12 - work around perl on windows bugs where perl returns undocumented
13 error codes for sysread, syswrite etc. by taking advantage
14 of AnyEvent's workaround for that problem.
15 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
16 a common perl implementation bug on windows.
17 - use unix domain sockets in testsuite to work around
18 common perl implementation bugs on widows (they are emulated by
19 tcp sockets on windows. ugh.)
20
214.71 Sat May 24 20:01:27 CEST 2008
22 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
23 - take advantage of async name resolution of AnyEvent::Util.
24 - work around brutal inet_aton override in Coro::LWP.
25 - take advantage of the readyhook in Coro::EV, for smoother
26 scheduling.
27
284.7 Sun May 11 00:32:19 CEST 2008
29 - completely reworked the Coro manpage.
30 - added Coro::AnyEvent, generic event loop integration.
31 - implement cancel, ready and kill commands in Coro::Debug.
32 - document find_coro in Coro::Debug.
33 - incompatible change: rename has_stack to has_cctx.
34 - Coro::AIO and Coro::BDB no longer force event model detection,
35 use AnyEvent::AIO and AnyEvent::BDB.
36
374.6 Sat Apr 26 10:05:14 CEST 2008
38 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
39 by the Coro module. It was a mistake to have it in the first place.
40 - (experimental) support for activestate perl 5.10 (method "w").
41 - (experimental) support for strawberry perl (method "a").
42 - coro_sigelem_set did not return a value although it had to,
43 actual impact unknown.
44
454.51 Mon Apr 14 13:28:27 CEST 2008
46 - make it compile again on 5.8.
47
484.50 Thu Apr 10 09:43:17 CEST 2008
49 - I did it twice! (see 4.49).
50
514.49 Sun Apr 6 21:23:31 CEST 2008
52 - grr, instead of compiling the recent changes on 5.10 only they
53 were compiled on 5.8 only.
54
554.48 Sun Apr 6 20:36:46 CEST 2008
56 - allow coroutine switches during eval's under 5.10.x, as it seems
57 the parser is a per-interpreter option now, so this is safe
58 (this might fix the odd crashing bug).
59 - drop support for 5.9.x versions: they are dead, jim.
60
614.47 Sun Apr 6 00:37:52 CEST 2008
62 - force cctx allocation on API calls: we know we need to force one
63 and gcc actually manages to confuse our heuristic nowadays,
64 leading to crashes and worse.
65 - document force_cctx.
66
674.46 Fri Apr 4 22:05:43 CEST 2008
68 - upgrade libcoro, resulting in pthread-backend (which was only created
69 to fulfill the rules of the programming languages shootout).
70
714.45 Thu Mar 13 11:55:36 CET 2008
72 - fix a file leaking bug in eg/mhyttpd that would allow
73 downloading of any file (reported by oesi).
74 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
75 (also add testcase).
76 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
77 apparently having loads of fun with that).
78 - implement $state->swap_defsv, ->swap_defav and document ->throw.
79
804.4 Wed Feb 13 16:44:29 CET 2008
81 - only assume .cfi pseudo isns exist on GNU/Linux.
82 - add get_timed method to Coro::Channels.
83 - fixed Coro::Debug manpage.
84 - perl 5.11 compatbility improvement based on patch by
85 Andreas König.
86
874.37 Sun Jan 20 11:25:23 CET 2008
88 - soften the check for an active parser for perl 5.10 (avoiding
89 "Coro::State::transfer called while parsing" in many cases).
90
914.36 Sun Jan 13 10:53:56 CET 2008
92 - reset diehook when terminating from an async_pool as to not
93 trigger any __DIE__ handlers.
94
954.35 Sun Jan 13 04:14:13 CET 2008
96 - "bt" debug command now displays any exceptions
97 from longmess and also skips the innermost
98 stackframes, giving more useufl output.
99 - allow backtraces in coroutines blocked in Coro::EV,
100 at a <1% speed hit.
101 - handle localising of $SIG{__WARN__} and __DIE__
102 properly (with a proper amount of dirty hacking).
103
1044.34 Sat Dec 22 17:49:53 CET 2007
105 - upgrade to EV version 2.0 API.
106
1074.33 Mon Dec 17 08:36:12 CET 2007
108 - make Coro::AIO etc. loadable in the absence of EV.
109
1104.32 Mon Dec 17 07:46:02 CET 2007
111 - majorly improved Coro::Handle's performance with Coro::EV.
112 - implemented the until now mythical Coro::BDB module.
113 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
114
1154.31 Wed Dec 5 12:32:39 CET 2007
116 - remove warn statement form Coro::Util.
117
1184.3 Tue Dec 4 20:33:14 CET 2007
119 - calls to the idle function could cause stack corruption
120 when the stack changed.
121 - do no longer rely on the presence of EV::DNS if EV is used
122 (because it is gone), but instead take avdantage of EV::ADNS
123 if available.
124 - add ($) prototypes to all functions in Coro::Storable.
125 - use a conventional (safer) idle callback in Coro::EV.
126 - do accept quickly in Coro::Debug to avoid endless loops.
127
1284.22 Fri Nov 30 16:04:04 CET 2007
129 - really use optimised versions for Event and EV in Coro::Util
130 and Coro::Handle.
131
1324.21 Sun Nov 25 10:48:59 CET 2007
133 - fix a spurious memory read.
134 - Coro::EV no longer keeps the eventloop "alive".
135
1364.2 Fri Nov 9 20:47:05 CET 2007
137 - enable/disable tracing from a new coroutine, not a pooled one.
138 - fix a memleak in Coro::Event.
139 - removed killall call from fork_eval.
140 - made sure store_fd is already loaded so that fork_eval
141 does not have to parse autoload in each subprocess.
142 - only use assembly method if -O switch is in $Config{optimize}.
143 - add (optional) Coro::EV module, so far the best event loop module
144 directly supported by Coro.
145 - if the event model is EV, use EV::DNS to resolve
146 stuff in Coro::Util.
147 - don't get confused by multiple event notifications in Coro::Handle.
148 - initial support for EV (libevent interface).
149 - require Event and EV using configure_requires, to force their existance.
150
1514.13 Wed Oct 24 07:26:45 CEST 2007
152 - add Coro::Storable::blocking_thaw.
153 - use a vastly more complicated technique to localise
154 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
155 - use a coroutine for the idle callback Coro::Event,
156 instead of running Event in the current coroutine context.
157 This also catches recursive invocations.
158 - actually report fork errors in gethostbyname and inet_aton.
159
1604.11 Thu Oct 11 02:40:24 CEST 2007
161 - port to threaded perls.
162
1634.1 Thu Oct 11 02:38:16 CEST 2007
164 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
165 be local to each coro (see Coro::State).
166 - incompatible change: for very deep reasons, cede and cede_notself
167 cannot return anything, so nothing will be returned.
168 - possibly bring back 5.10 compatibility (untested).
169 - work around stupid (and wrong) warning on 5.10 :(.
170 - overlay the saved state over the context stack. This saves
171 a few hundred bytes per coroutine on average and also
172 speeds up context switching a bit.
173 - further tune default stack sizes.
174 - (more) correctly calculate stack usage in coro_rss.
175 - Coro::Storable::blocking_* did not properly lock
176 resulting in races between coroutines.
177 - added Coro::Storable::guard.
178 - stopping to trace a coroutine could destroy the cctx of
179 an unrelated coroutine.
180 - explain the relationship between Perl and C coroutines in
181 more detail in Coro::State.
182 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
183 causing a fork per resolve. This also affected Coro::Socket.
184 - switch to a separate stack in $coro->call/eval to avoid
185 invalidating pointers.
186
1874.03 Sat Oct 6 21:24:00 CEST 2007
188 - added Coro::throw method.
189 - minor code cleanups.
190
1914.02 Sat Oct 6 02:36:47 CEST 2007
192 - fix a very minor per-coroutine memleak (a single codereference).
193 - fixed a bug where the currently in-use c context would be freed
194 prematurely (can happen only when programs change the stacksize
195 or use tracing).
196 - tracing can no longer keep a coro alive after it terminated.
197 - do static branch prediction in the common path for gcc. gives
198 about 2-5% speed improvement here.
199
2004.01 Fri Oct 5 22:10:49 CEST 2007
201 - instead of recreating *a* standard output handle we simply
202 use STDOUT, which is faster and hopefully more robust.
203
2044.0 Fri Oct 5 12:56:00 CEST 2007
205 - incompatibly changed Coro::Storable::freeze.
206 - major new feature: added Coro::Debug, for interactive coroutine
207 debugging, tracing and much more.
208 - major bug fix: unbelievable, but true: $_, $/ and many other
209 "saved" variables actually weren't being saved. This has been fixed,
210 of course, while increasing performance while losing all the save
211 flags.
212 - save flags are gone, and all the api functions dealing with them.
213 - added Coro::Semaphore::adjust.
214 - added Coro::Util::fork_eval.
215 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
216 - added Coro::killall.
217 - reduce initial stack sizes to allow for "micro-coroutines".
218 - better async_pool resource management, moved parts of async_pool
219 handling to XS (major speed improvement).
220 - actually croak before modifying important data structures.
221 - refuse to transfer while compiling.
222 - possibly support eval EXPR better now.
223 - enable assembly per default on linux+bsd x86+amd64.
224 - all internal members were renamed _something for easier subclassing.
225 - many minor tweaks.
226
2273.63 Wed May 16 14:10:06 CEST 2007
228 - implement handcoded assembly for x86/amd64 SVR ABI.
229
2303.62 Fri Apr 27 21:36:06 CEST 2007
231 - upgrade libcoro (which might set unwind info correctly).
232 - change default on linux to setjmp/longjmp.
233
2343.61 Thu Apr 19 12:36:18 CEST 2007
235 - Coro::Storable caused an endless loop when thawing invalid
236 pst's sometimes.
237 - use a Semaphore in Coro::Storable, as Storable doesn't
238 seem to be reentrant (although it is documented to
239 be threadsafe...).
240 - fix Coro::Signal to bring back the original unreliable
241 but stateful semantics.
242 - fixed a lot of typos in Coro.pm (patch submitted by David
243 Steinbrunner, which applied flawlessly).
244
2453.6 Sat Apr 14 17:13:31 CEST 2007
246 - added some bugfixes to get eg/myhttpd working again.
247 - added Coro::Storable for often-cede'ing freeze/thaw.
248 - try to do a clean exit when a coroutine calls exit
249 (EXPERIMENTAL).
250 - got rid of indirect call through _coro_init.
251 - updated the partly antique examples in eg/ to
252 work again and be a bit less magic, too.
253 - fixed Coro::Signal semantics to work as documented again.
254
2553.55 Sun Mar 25 01:20:47 CET 2007
256 - add SAVE_DEFFH to save the default filehandle and enable
257 it by default.
258 - finally move socket-operations from Coro::Socket to Coro::Handle
259 to be able to unblock foreign sockets.
260 - add Coro::State::save_also and guarded_save.
261 - add count accessor to Coro::Semaphore.
262 - add Coro::State::cctx_stacksize.
263 - just for the fun of it, do not rely on implicit context,
264 which can dramatically improve performance, but people
265 using windows-process-emulation perls do not care much about
266 performance.
267
2683.51 Sun Mar 4 14:18:04 CET 2007
269 - fixed a problem when you weakened references to Coro::State's
270 (patch by Yuval Kogman).
271
2723.501 Wed Feb 28 12:44:07 CET 2007
273 - rename some global symbols as macosx from hell redefines
274 them without asking.
275
2763.5 Tue Feb 13 20:22:53 CET 2007
277 - do AnyEvent model detection earlier, avoiding problems
278 caused by first using AnyEvent and later Coro::Event.
279 - implement and document Coro::Event event objects.
280 - fix a potential problem in Coro::Event causing crashes.
281 - initialise PL_comppad when creating a new coroutine,
282 avoids crashes on early coro destruction.
283
2843.41 Mon Jan 22 19:19:49 CET 2007
285 - readline on Coro::Handle did not support undefined $/,
286 nor did it deliver partial lines on EOF or error.
287 - implement malloc fallback for stack allocation because
288 stupid broken idiotic OSX has a stupid broken
289 idiotic fits-the-whole-os mmap "implementation" and
290 my dick feels longer if Coro is portable even to
291 obsolete platforms.
292
2933.4 Fri Jan 19 21:52:54 CET 2007
294 - remove t/09_timer.t, as it isn't really testing much
295 but was rather flaky in practise.
296 - async_pool coro would keep arguments and callback alive until
297 it was reused.
298 - cancellation of a coroutine could cause spurious idle calls
299 in cede_notself.
300
3013.3 Sat Jan 6 03:45:00 CET 2007
302 - implement $coro->on_destroy.
303 - Coro::Event blocking semantics have been changed,
304 documented and - hopefully - improved.
305 - fix nice adding, not subtracting, from priority.
306 - fix ->prio and api_is_ready (patch by Mark Hinds).
307 - fixed an assert ("... == prev__cctx->idle_te")
308 that could errronously trigger.
309 - fix various large and small memleaks.
310 - use a (hopefully) more stable cancel implementation
311 that immediately frees the coroutine data.
312 - cede/cede_notself return a status now.
313 - added Coro::guard function.
314 - added a global coroutine pool for jobs (on my machine,
315 I can create and execute 48k simple coros/s with async,
316 and 128k coros with async_pool).
317 - Coro::AIO now uses the coroutine priority as io priority.
318
3193.2 Fri Dec 22 05:07:09 CET 2006
320 - improve portability to slightly older perls.
321 - use cleaner coroutine destruction.
322 - simplify configuration for users.
323 - optionally (unrecommended) prefer perl functions over
324 their coro replacements.
325
3263.11 Tue Dec 5 13:11:24 CET 2006
327 - fixed some bogus assert's, but as perl.h disables assert even
328 without NDEBUG (thank you very much), not too many people should
329 notice (that did include myself). Andreas König noticed, though :)
330 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
331 it. Also noticed by Andreas König :)
332 - save/restore tainted status.
333 - verified to pass the testsuite on my 5.9.5.
334
3353.1 Mon Dec 4 23:03:40 CET 2006
336 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
337 - incompatible change: transfer flags are now per-state.
338 - give a better error message on deadlock.
339 - document Coro::nready.
340 - enhanced testsuite.
341
3423.01 Sun Dec 3 23:47:42 CET 2006
343 - forgot to include Coro::Timer.
344
3453.0 Sun Dec 3 22:57:25 CET 2006
346 - the "FINALLY COMPLETELY STABLE" release (coming soon:
347 the "FAMOUS LAST WORDS" release).
348 - implement a new stack sharing algorithm, which uses a stack
349 pool (size currently hardcoded).
350 - make stack sharing mandatory (it no longer uses a heuristic).
351 - eval/die no longer cause weird problems under heavy use.
352 - Coro::Event could cause livelocks if it was used but
353 no Coro::Event watchers were used.
354 - Coro::Event now uses asynccheck as prepare does not
355 check for changed watchers.
356 - Coro::Event allows multiple waiting coros and will wake up one
357 per event.
358 - Coro::Event should be cleaner and more efficient now.
359 - new utility function Coro::unblock_sub.
360 - document the sad fact that Event is no longer reentrant.
361 - putting a coroutine into the ready queue twice could under
362 some circumstances lead to stack corruption.
363 - minor incompatibility: subclassing Coro::State is supported
364 directly now without going through a _coro_state member.
365 - state/coro switching is much faster now.
366 - very minor optimisations and code/documentation cleanup.
367 - avoid problems due to compiler inlining.
368 - removed timers from Coro::Timer -> use AnyEvent instead.
369 - replaced Coro::idle coroutine by (cleaner) idle handler.
370 - updated to newest libcoro.
371 - implement enhanced support for valgrind.
372 - implement is_ready and return value for ready.
373 - removed Coro::Cont, it was a misnomer (it's generators),
374 and it was somewhat annoying to get it right. Will come back
375 if somebody asks for it :)
376 - many ->wait methods and Coro::Event could return
377 spuriously without the event having happened.
378
3792.5 Tue Nov 7 12:22:33 CET 2006
380 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
381 use AnyEvent, moved them to Coro/.
382 - added Coro::LWP which contains all the uglyness required to
383 make LWP non-blocking.
384 - should work with perl 5.9.x now (Andreas König made me do it).
385 - fixed another bug in Coro::Select when the timeout was undef.
386 - reuse PL_start_env for all coros, saves some memory per coroutine.
387 - manage PL_top_env differently, hopefully to avoid panic: top_env.
388 - timeout argument was not properly used in Coro::Socket.
389 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
390 - emulate undocumented(!) functionality of IO::Socket required
391 by LWP(!!).
392 - updated eg/lwp to work with newer lwp's.
393 - remove "FATAL: uncaught exception" prefix. Coroutines that die
394 kill the whole process, just as exceptions in the main "coroutine"
395 did already.
396
3972.1 Wed Nov 1 23:01:13 CET 2006
398 - fix a long-standing bug in Coro::Select where select with
399 zero timeout would instead change the current default filehandle.
400 - use a simpler and hopefully more robust way to clone padlists
401 (uses less memory and a perl function instead of our own).
402 - coro can now create a stack guard area on many architectures.
403 - Coro::AIO properly reexports additional functions from IO::AIO.
404 - updated libcoro with a workaround for OS X,
405 pach and testing by Michael Schwern.
406
4072.0 Tue Oct 24 05:47:17 CEST 2006
408 - support additional aio requests in Coro::AIO.
409
4101.9 (never properly released due to a glitch)
411
4121.8 Thu Feb 2 00:59:06 CET 2006
413 - applied suggested patch by SAMV to avoid problems during stupid
414 mark & sweep gc run.
415 - applied patch by Scott Walters for 5.9.3 compatibility.
416
4171.7 Tue Dec 27 01:41:58 CET 2005
418 - added Coro::AIO, a thin wrapper around IO::AIO.
419 - improved Makefile.PL explanations.
2 420
31.6 Mon Dec 12 21:30:05 CET 2005 4211.6 Mon Dec 12 21:30:05 CET 2005
4 - additionally save PM_curpm might fix as-of-yet 422 - additionally save PM_curpm might fix as-of-yet
5 unseen problems with regex matches being attributes to the 423 unseen problems with regex matches being attributed to the
6 wrong package. 424 wrong package.
7 - add t/10_bugs.t, which currently checks against imho broken 425 - add t/10_bugs.t, which currently checks against imho broken
8 perls that use 0.26MB of stack space per Perl_magic_get 426 perls that use 0.26MB of stack space per Perl_magic_get
9 invocation (debian) as opposed ot the 0.0002MB normal 427 invocation (newer linuxes) as opposed to the 0.0002MB perl
10 perls use. 428 normally uses.
11 - make stacksize configurable for the ultimate debian experience. 429 - make stacksize configurable for the ultimate debian experience.
12 430
131.51 Mon Dec 12 18:48:36 CET 2005 4311.51 Mon Dec 12 18:48:36 CET 2005
14 - remove debugging warn() accidentally left in Coro::Select. 432 - remove debugging warn() accidentally left in Coro::Select.
15 433

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