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Comparing Coro/Changes (file contents):
Revision 1.141 by root, Sun Nov 5 19:16:09 2006 UTC vs.
Revision 1.369 by root, Sun Sep 21 18:29:39 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)).
4 7
5 - converted Coro::Select to AnyEvent. 84.747
9 - fix a per-cv memleak (one empty array was leaked per
10 code reference).
11
124.746 Sun Sep 21 03:22:20 CEST 2008
13 - be more insistent on locking Storable against reentrancy
14 in Coro::Storable.
15 - move swap_def?v and throw to Coro::State, as documented.
16
174.745 Thu Jul 24 00:14:38 CEST 2008
18 - remove debugging code related to MgPV_nolen_const, also try to
19 make it compile with perl 5.8.6 (yes, apple apparently loves
20 outdated software). Reported by John S.
21
224.744 Tue Jul 8 22:06:35 CEST 2008
23 - correctly provide default DIE/WARN handlers as documented.
24 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
25 implementations inside perl work fine for us.
26
274.743 Mon Jun 16 00:21:57 CEST 2008
28 - when using Coro::EV without running EV::loop it could
29 result in busy-waiting for events, this has been fixed.
30 - reduce codesize and improve performance by using EV_DEFAULT_UC.
31
324.742 Sat May 31 14:10:21 CEST 2008
33 - implement a workaround for (some) perl <5.8.8 versions.
34 - require EV 3.3+.
35
364.741 Fri May 30 23:33:09 CEST 2008
37 - tell netbsd how utterly broken their imitation of an OS is
38 and refuse to build by default if pthreads are in use.
39 - switch to "s" method on all bsd's by default, as their ucontext
40 stuff seems just too broken.
41 - fix a bug in Coro::Select.
42
434.74 Thu May 29 20:05:31 CEST 2008
44 - do not test Coro::LWP for lack of dependencies.
45 - do not test Coro::Select for lack of working perls.
46
474.73 Thu May 29 2008
48 - fix a bug in Coro::EV which would cause it to block despite
49 there being runnable coroutines.
50 - sprinkle "no warnings" freely over everything, also suppress
51 warnings for some other modules.
52 - fix typo in WSAEWOULDBLOCK.
53
544.72 Sun May 25 05:14:36 CEST 2008
55 - tweak META.yaml a bit, unfortunately, there is no documented way
56 to have optional dependencies with CPAN. doh :(
57 - avoid running some tests on windows because they would fail due to
58 perl bug (broken fork, broken pipes...).
59 - work around perl on windows bugs where perl returns undocumented
60 error codes for sysread, syswrite etc. by taking advantage
61 of AnyEvent's workaround for that problem.
62 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
63 a common perl implementation bug on windows.
64 - use unix domain sockets in testsuite to work around
65 common perl implementation bugs on widows (they are emulated by
66 tcp sockets on windows. ugh.)
67
684.71 Sat May 24 20:01:27 CEST 2008
69 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
70 - take advantage of async name resolution of AnyEvent::Util.
71 - work around brutal inet_aton override in Coro::LWP.
72 - take advantage of the readyhook in Coro::EV, for smoother
73 scheduling.
74
754.7 Sun May 11 00:32:19 CEST 2008
76 - completely reworked the Coro manpage.
77 - added Coro::AnyEvent, generic event loop integration.
78 - implement cancel, ready and kill commands in Coro::Debug.
79 - document find_coro in Coro::Debug.
80 - incompatible change: rename has_stack to has_cctx.
81 - Coro::AIO and Coro::BDB no longer force event model detection,
82 use AnyEvent::AIO and AnyEvent::BDB.
83
844.6 Sat Apr 26 10:05:14 CEST 2008
85 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
86 by the Coro module. It was a mistake to have it in the first place.
87 - (experimental) support for activestate perl 5.10 (method "w").
88 - (experimental) support for strawberry perl (method "a").
89 - coro_sigelem_set did not return a value although it had to,
90 actual impact unknown.
91
924.51 Mon Apr 14 13:28:27 CEST 2008
93 - make it compile again on 5.8.
94
954.50 Thu Apr 10 09:43:17 CEST 2008
96 - I did it twice! (see 4.49).
97
984.49 Sun Apr 6 21:23:31 CEST 2008
99 - grr, instead of compiling the recent changes on 5.10 only they
100 were compiled on 5.8 only.
101
1024.48 Sun Apr 6 20:36:46 CEST 2008
103 - allow coroutine switches during eval's under 5.10.x, as it seems
104 the parser is a per-interpreter option now, so this is safe
105 (this might fix the odd crashing bug).
106 - drop support for 5.9.x versions: they are dead, jim.
107
1084.47 Sun Apr 6 00:37:52 CEST 2008
109 - force cctx allocation on API calls: we know we need to force one
110 and gcc actually manages to confuse our heuristic nowadays,
111 leading to crashes and worse.
112 - document force_cctx.
113
1144.46 Fri Apr 4 22:05:43 CEST 2008
115 - upgrade libcoro, resulting in pthread-backend (which was only created
116 to fulfill the rules of the programming languages shootout).
117
1184.45 Thu Mar 13 11:55:36 CET 2008
119 - fix a file leaking bug in eg/mhyttpd that would allow
120 downloading of any file (reported by oesi).
121 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
122 (also add testcase).
123 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
124 apparently having loads of fun with that).
125 - implement $state->swap_defsv, ->swap_defav and document ->throw.
126
1274.4 Wed Feb 13 16:44:29 CET 2008
128 - only assume .cfi pseudo isns exist on GNU/Linux.
129 - add get_timed method to Coro::Channels.
130 - fixed Coro::Debug manpage.
131 - perl 5.11 compatbility improvement based on patch by
132 Andreas König.
133
1344.37 Sun Jan 20 11:25:23 CET 2008
135 - soften the check for an active parser for perl 5.10 (avoiding
136 "Coro::State::transfer called while parsing" in many cases).
137
1384.36 Sun Jan 13 10:53:56 CET 2008
139 - reset diehook when terminating from an async_pool as to not
140 trigger any __DIE__ handlers.
141
1424.35 Sun Jan 13 04:14:13 CET 2008
143 - "bt" debug command now displays any exceptions
144 from longmess and also skips the innermost
145 stackframes, giving more useufl output.
146 - allow backtraces in coroutines blocked in Coro::EV,
147 at a <1% speed hit.
148 - handle localising of $SIG{__WARN__} and __DIE__
149 properly (with a proper amount of dirty hacking).
150
1514.34 Sat Dec 22 17:49:53 CET 2007
152 - upgrade to EV version 2.0 API.
153
1544.33 Mon Dec 17 08:36:12 CET 2007
155 - make Coro::AIO etc. loadable in the absence of EV.
156
1574.32 Mon Dec 17 07:46:02 CET 2007
158 - majorly improved Coro::Handle's performance with Coro::EV.
159 - implemented the until now mythical Coro::BDB module.
160 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
161
1624.31 Wed Dec 5 12:32:39 CET 2007
163 - remove warn statement form Coro::Util.
164
1654.3 Tue Dec 4 20:33:14 CET 2007
166 - calls to the idle function could cause stack corruption
167 when the stack changed.
168 - do no longer rely on the presence of EV::DNS if EV is used
169 (because it is gone), but instead take avdantage of EV::ADNS
170 if available.
171 - add ($) prototypes to all functions in Coro::Storable.
172 - use a conventional (safer) idle callback in Coro::EV.
173 - do accept quickly in Coro::Debug to avoid endless loops.
174
1754.22 Fri Nov 30 16:04:04 CET 2007
176 - really use optimised versions for Event and EV in Coro::Util
177 and Coro::Handle.
178
1794.21 Sun Nov 25 10:48:59 CET 2007
180 - fix a spurious memory read.
181 - Coro::EV no longer keeps the eventloop "alive".
182
1834.2 Fri Nov 9 20:47:05 CET 2007
184 - enable/disable tracing from a new coroutine, not a pooled one.
185 - fix a memleak in Coro::Event.
186 - removed killall call from fork_eval.
187 - made sure store_fd is already loaded so that fork_eval
188 does not have to parse autoload in each subprocess.
189 - only use assembly method if -O switch is in $Config{optimize}.
190 - add (optional) Coro::EV module, so far the best event loop module
191 directly supported by Coro.
192 - if the event model is EV, use EV::DNS to resolve
193 stuff in Coro::Util.
194 - don't get confused by multiple event notifications in Coro::Handle.
195 - initial support for EV (libevent interface).
196 - require Event and EV using configure_requires, to force their existance.
197
1984.13 Wed Oct 24 07:26:45 CEST 2007
199 - add Coro::Storable::blocking_thaw.
200 - use a vastly more complicated technique to localise
201 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
202 - use a coroutine for the idle callback Coro::Event,
203 instead of running Event in the current coroutine context.
204 This also catches recursive invocations.
205 - actually report fork errors in gethostbyname and inet_aton.
206
2074.11 Thu Oct 11 02:40:24 CEST 2007
208 - port to threaded perls.
209
2104.1 Thu Oct 11 02:38:16 CEST 2007
211 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
212 be local to each coro (see Coro::State).
213 - incompatible change: for very deep reasons, cede and cede_notself
214 cannot return anything, so nothing will be returned.
215 - possibly bring back 5.10 compatibility (untested).
216 - work around stupid (and wrong) warning on 5.10 :(.
217 - overlay the saved state over the context stack. This saves
218 a few hundred bytes per coroutine on average and also
219 speeds up context switching a bit.
220 - further tune default stack sizes.
221 - (more) correctly calculate stack usage in coro_rss.
222 - Coro::Storable::blocking_* did not properly lock
223 resulting in races between coroutines.
224 - added Coro::Storable::guard.
225 - stopping to trace a coroutine could destroy the cctx of
226 an unrelated coroutine.
227 - explain the relationship between Perl and C coroutines in
228 more detail in Coro::State.
229 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
230 causing a fork per resolve. This also affected Coro::Socket.
231 - switch to a separate stack in $coro->call/eval to avoid
232 invalidating pointers.
233
2344.03 Sat Oct 6 21:24:00 CEST 2007
235 - added Coro::throw method.
236 - minor code cleanups.
237
2384.02 Sat Oct 6 02:36:47 CEST 2007
239 - fix a very minor per-coroutine memleak (a single codereference).
240 - fixed a bug where the currently in-use c context would be freed
241 prematurely (can happen only when programs change the stacksize
242 or use tracing).
243 - tracing can no longer keep a coro alive after it terminated.
244 - do static branch prediction in the common path for gcc. gives
245 about 2-5% speed improvement here.
246
2474.01 Fri Oct 5 22:10:49 CEST 2007
248 - instead of recreating *a* standard output handle we simply
249 use STDOUT, which is faster and hopefully more robust.
250
2514.0 Fri Oct 5 12:56:00 CEST 2007
252 - incompatibly changed Coro::Storable::freeze.
253 - major new feature: added Coro::Debug, for interactive coroutine
254 debugging, tracing and much more.
255 - major bug fix: unbelievable, but true: $_, $/ and many other
256 "saved" variables actually weren't being saved. This has been fixed,
257 of course, while increasing performance while losing all the save
258 flags.
259 - save flags are gone, and all the api functions dealing with them.
260 - added Coro::Semaphore::adjust.
261 - added Coro::Util::fork_eval.
262 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
263 - added Coro::killall.
264 - reduce initial stack sizes to allow for "micro-coroutines".
265 - better async_pool resource management, moved parts of async_pool
266 handling to XS (major speed improvement).
267 - actually croak before modifying important data structures.
268 - refuse to transfer while compiling.
269 - possibly support eval EXPR better now.
270 - enable assembly per default on linux+bsd x86+amd64.
271 - all internal members were renamed _something for easier subclassing.
272 - many minor tweaks.
273
2743.63 Wed May 16 14:10:06 CEST 2007
275 - implement handcoded assembly for x86/amd64 SVR ABI.
276
2773.62 Fri Apr 27 21:36:06 CEST 2007
278 - upgrade libcoro (which might set unwind info correctly).
279 - change default on linux to setjmp/longjmp.
280
2813.61 Thu Apr 19 12:36:18 CEST 2007
282 - Coro::Storable caused an endless loop when thawing invalid
283 pst's sometimes.
284 - use a Semaphore in Coro::Storable, as Storable doesn't
285 seem to be reentrant (although it is documented to
286 be threadsafe...).
287 - fix Coro::Signal to bring back the original unreliable
288 but stateful semantics.
289 - fixed a lot of typos in Coro.pm (patch submitted by David
290 Steinbrunner, which applied flawlessly).
291
2923.6 Sat Apr 14 17:13:31 CEST 2007
293 - added some bugfixes to get eg/myhttpd working again.
294 - added Coro::Storable for often-cede'ing freeze/thaw.
295 - try to do a clean exit when a coroutine calls exit
296 (EXPERIMENTAL).
297 - got rid of indirect call through _coro_init.
298 - updated the partly antique examples in eg/ to
299 work again and be a bit less magic, too.
300 - fixed Coro::Signal semantics to work as documented again.
301
3023.55 Sun Mar 25 01:20:47 CET 2007
303 - add SAVE_DEFFH to save the default filehandle and enable
304 it by default.
305 - finally move socket-operations from Coro::Socket to Coro::Handle
306 to be able to unblock foreign sockets.
307 - add Coro::State::save_also and guarded_save.
308 - add count accessor to Coro::Semaphore.
309 - add Coro::State::cctx_stacksize.
310 - just for the fun of it, do not rely on implicit context,
311 which can dramatically improve performance, but people
312 using windows-process-emulation perls do not care much about
313 performance.
314
3153.51 Sun Mar 4 14:18:04 CET 2007
316 - fixed a problem when you weakened references to Coro::State's
317 (patch by Yuval Kogman).
318
3193.501 Wed Feb 28 12:44:07 CET 2007
320 - rename some global symbols as macosx from hell redefines
321 them without asking.
322
3233.5 Tue Feb 13 20:22:53 CET 2007
324 - do AnyEvent model detection earlier, avoiding problems
325 caused by first using AnyEvent and later Coro::Event.
326 - implement and document Coro::Event event objects.
327 - fix a potential problem in Coro::Event causing crashes.
328 - initialise PL_comppad when creating a new coroutine,
329 avoids crashes on early coro destruction.
330
3313.41 Mon Jan 22 19:19:49 CET 2007
332 - readline on Coro::Handle did not support undefined $/,
333 nor did it deliver partial lines on EOF or error.
334 - implement malloc fallback for stack allocation because
335 stupid broken idiotic OSX has a stupid broken
336 idiotic fits-the-whole-os mmap "implementation" and
337 my dick feels longer if Coro is portable even to
338 obsolete platforms.
339
3403.4 Fri Jan 19 21:52:54 CET 2007
341 - remove t/09_timer.t, as it isn't really testing much
342 but was rather flaky in practise.
343 - async_pool coro would keep arguments and callback alive until
344 it was reused.
345 - cancellation of a coroutine could cause spurious idle calls
346 in cede_notself.
347
3483.3 Sat Jan 6 03:45:00 CET 2007
349 - implement $coro->on_destroy.
350 - Coro::Event blocking semantics have been changed,
351 documented and - hopefully - improved.
352 - fix nice adding, not subtracting, from priority.
353 - fix ->prio and api_is_ready (patch by Mark Hinds).
354 - fixed an assert ("... == prev__cctx->idle_te")
355 that could errronously trigger.
356 - fix various large and small memleaks.
357 - use a (hopefully) more stable cancel implementation
358 that immediately frees the coroutine data.
359 - cede/cede_notself return a status now.
360 - added Coro::guard function.
361 - added a global coroutine pool for jobs (on my machine,
362 I can create and execute 48k simple coros/s with async,
363 and 128k coros with async_pool).
364 - Coro::AIO now uses the coroutine priority as io priority.
365
3663.2 Fri Dec 22 05:07:09 CET 2006
367 - improve portability to slightly older perls.
368 - use cleaner coroutine destruction.
369 - simplify configuration for users.
370 - optionally (unrecommended) prefer perl functions over
371 their coro replacements.
372
3733.11 Tue Dec 5 13:11:24 CET 2006
374 - fixed some bogus assert's, but as perl.h disables assert even
375 without NDEBUG (thank you very much), not too many people should
376 notice (that did include myself). Andreas König noticed, though :)
377 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
378 it. Also noticed by Andreas König :)
379 - save/restore tainted status.
380 - verified to pass the testsuite on my 5.9.5.
381
3823.1 Mon Dec 4 23:03:40 CET 2006
383 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
384 - incompatible change: transfer flags are now per-state.
385 - give a better error message on deadlock.
386 - document Coro::nready.
387 - enhanced testsuite.
388
3893.01 Sun Dec 3 23:47:42 CET 2006
390 - forgot to include Coro::Timer.
391
3923.0 Sun Dec 3 22:57:25 CET 2006
393 - the "FINALLY COMPLETELY STABLE" release (coming soon:
394 the "FAMOUS LAST WORDS" release).
395 - implement a new stack sharing algorithm, which uses a stack
396 pool (size currently hardcoded).
397 - make stack sharing mandatory (it no longer uses a heuristic).
398 - eval/die no longer cause weird problems under heavy use.
399 - Coro::Event could cause livelocks if it was used but
400 no Coro::Event watchers were used.
401 - Coro::Event now uses asynccheck as prepare does not
402 check for changed watchers.
403 - Coro::Event allows multiple waiting coros and will wake up one
404 per event.
405 - Coro::Event should be cleaner and more efficient now.
406 - new utility function Coro::unblock_sub.
407 - document the sad fact that Event is no longer reentrant.
408 - putting a coroutine into the ready queue twice could under
409 some circumstances lead to stack corruption.
410 - minor incompatibility: subclassing Coro::State is supported
411 directly now without going through a _coro_state member.
412 - state/coro switching is much faster now.
413 - very minor optimisations and code/documentation cleanup.
414 - avoid problems due to compiler inlining.
415 - removed timers from Coro::Timer -> use AnyEvent instead.
416 - replaced Coro::idle coroutine by (cleaner) idle handler.
417 - updated to newest libcoro.
418 - implement enhanced support for valgrind.
419 - implement is_ready and return value for ready.
420 - removed Coro::Cont, it was a misnomer (it's generators),
421 and it was somewhat annoying to get it right. Will come back
422 if somebody asks for it :)
423 - many ->wait methods and Coro::Event could return
424 spuriously without the event having happened.
425
4262.5 Tue Nov 7 12:22:33 CET 2006
427 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
428 use AnyEvent, moved them to Coro/.
6 - added Coro::LWP which contains all the uglyness required to 429 - added Coro::LWP which contains all the uglyness required to
7 make LWP non-blocking. 430 make LWP non-blocking.
8 - should work with perl 5.9.x now (Andreas König made me do it). 431 - should work with perl 5.9.x now (Andreas König made me do it).
9 - fixed another bug in Coro::Select when the timeout was undef. 432 - fixed another bug in Coro::Select when the timeout was undef.
10 - reuse PL_start_env for all coros, saves some memory per coroutine. 433 - reuse PL_start_env for all coros, saves some memory per coroutine.
12 - timeout argument was not properly used in Coro::Socket. 435 - timeout argument was not properly used in Coro::Socket.
13 - allow limited forms of subclassing in Coro::Handle/Coro::Socket. 436 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
14 - emulate undocumented(!) functionality of IO::Socket required 437 - emulate undocumented(!) functionality of IO::Socket required
15 by LWP(!!). 438 by LWP(!!).
16 - updated eg/lwp to work with newer lwp's. 439 - updated eg/lwp to work with newer lwp's.
17 - made Coro::Util an AnyEvent user, moved it to Coro/.
18 - remove "FATAL: uncaught exception" prefix. Coroutines that die 440 - remove "FATAL: uncaught exception" prefix. Coroutines that die
19 kill the whole process, just as exceptions in the main "coroutine" 441 kill the whole process, just as exceptions in the main "coroutine"
20 did already. 442 did already.
21 443
222.1 Wed Nov 1 23:01:13 CET 2006 4442.1 Wed Nov 1 23:01:13 CET 2006

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