ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/Coro/Changes
(Generate patch)

Comparing Coro/Changes (file contents):
Revision 1.91 by pcg, Thu Apr 1 02:29:05 2004 UTC vs.
Revision 1.337 by root, Thu Apr 24 10:31:59 2008 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 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 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
9 by the Coro module. It was a mistake.
10 - coro_sigelem_set did not return a value although it had to,
11 actual impact unknown.
12
134.51 Mon Apr 14 13:28:27 CEST 2008
14 - make it compile again on 5.8.
15
164.50 Thu Apr 10 09:43:17 CEST 2008
17 - I did it twice! (see 4.49).
18
194.49 Sun Apr 6 21:23:31 CEST 2008
20 - grr, instead of compiling the recent changes on 5.10 only they
21 were compiled on 5.8 only.
22
234.48 Sun Apr 6 20:36:46 CEST 2008
24 - allow coroutine switches during eval's under 5.10.x, as it seems
25 the parser is a per-interpreter option now, so this is safe
26 (this might fix the odd crashing bug).
27 - drop support for 5.9.x versions: they are dead, jim.
28
294.47 Sun Apr 6 00:37:52 CEST 2008
30 - force cctx allocation on API calls: we know we need to force one
31 and gcc actually manages to confuse our heuristic nowadays,
32 leading to crashes and worse.
33 - document force_cctx.
34
354.46 Fri Apr 4 22:05:43 CEST 2008
36 - upgrade libcoro, resulting in pthread-backend (which was only created
37 to fulfill the rules of the programming languages shootout).
38
394.45 Thu Mar 13 11:55:36 CET 2008
40 - fix a file leaking bug in eg/mhyttpd that would allow
41 downloading of any file (reported by oesi).
42 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
43 (also add testcase).
44 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
45 apparently having loads of fun with that).
46 - implement $state->swap_defsv, ->swap_defav and document ->throw.
47
484.4 Wed Feb 13 16:44:29 CET 2008
49 - only assume .cfi pseudo isns exist on GNU/Linux.
50 - add get_timed method to Coro::Channels.
51 - fixed Coro::Debug manpage.
52 - perl 5.11 compatbility improvement based on patch by
53 Andreas König.
54
554.37 Sun Jan 20 11:25:23 CET 2008
56 - soften the check for an active parser for perl 5.10 (avoiding
57 "Coro::State::transfer called while parsing" in many cases).
58
594.36 Sun Jan 13 10:53:56 CET 2008
60 - reset diehook when terminating from an async_pool as to not
61 trigger any __DIE__ handlers.
62
634.35 Sun Jan 13 04:14:13 CET 2008
64 - "bt" debug command now displays any exceptions
65 from longmess and also skips the innermost
66 stackframes, giving more useufl output.
67 - allow backtraces in coroutines blocked in Coro::EV,
68 at a <1% speed hit.
69 - handle localising of $SIG{__WARN__} and __DIE__
70 properly (with a proper amount of dirty hacking).
71
724.34 Sat Dec 22 17:49:53 CET 2007
73 - upgrade to EV version 2.0 API.
74
754.33 Mon Dec 17 08:36:12 CET 2007
76 - make Coro::AIO etc. loadable in the absence of EV.
77
784.32 Mon Dec 17 07:46:02 CET 2007
79 - majorly improved Coro::Handle's performance with Coro::EV.
80 - implemented the until now mythical Coro::BDB module.
81 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
82
834.31 Wed Dec 5 12:32:39 CET 2007
84 - remove warn statement form Coro::Util.
85
864.3 Tue Dec 4 20:33:14 CET 2007
87 - calls to the idle function could cause stack corruption
88 when the stack changed.
89 - do no longer rely on the presence of EV::DNS if EV is used
90 (because it is gone), but instead take avdantage of EV::ADNS
91 if available.
92 - add ($) prototypes to all functions in Coro::Storable.
93 - use a conventional (safer) idle callback in Coro::EV.
94 - do accept quickly in Coro::Debug to avoid endless loops.
95
964.22 Fri Nov 30 16:04:04 CET 2007
97 - really use optimised versions for Event and EV in Coro::Util
98 and Coro::Handle.
99
1004.21 Sun Nov 25 10:48:59 CET 2007
101 - fix a spurious memory read.
102 - Coro::EV no longer keeps the eventloop "alive".
103
1044.2 Fri Nov 9 20:47:05 CET 2007
105 - enable/disable tracing from a new coroutine, not a pooled one.
106 - fix a memleak in Coro::Event.
107 - removed killall call from fork_eval.
108 - made sure store_fd is already loaded so that fork_eval
109 does not have to parse autoload in each subprocess.
110 - only use assembly method if -O switch is in $Config{optimize}.
111 - add (optional) Coro::EV module, so far the best event loop module
112 directly supported by Coro.
113 - if the event model is EV, use EV::DNS to resolve
114 stuff in Coro::Util.
115 - don't get confused by multiple event notifications in Coro::Handle.
116 - initial support for EV (libevent interface).
117 - require Event and EV using configure_requires, to force their existance.
118
1194.13 Wed Oct 24 07:26:45 CEST 2007
120 - add Coro::Storable::blocking_thaw.
121 - use a vastly more complicated technique to localise
122 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
123 - use a coroutine for the idle callback Coro::Event,
124 instead of running Event in the current coroutine context.
125 This also catches recursive invocations.
126 - actually report fork errors in gethostbyname and inet_aton.
127
1284.11 Thu Oct 11 02:40:24 CEST 2007
129 - port to threaded perls.
130
1314.1 Thu Oct 11 02:38:16 CEST 2007
132 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
133 be local to each coro (see Coro::State).
134 - incompatible change: for very deep reasons, cede and cede_notself
135 cannot return anything, so nothing will be returned.
136 - possibly bring back 5.10 compatibility (untested).
137 - work around stupid (and wrong) warning on 5.10 :(.
138 - overlay the saved state over the context stack. This saves
139 a few hundred bytes per coroutine on average and also
140 speeds up context switching a bit.
141 - further tune default stack sizes.
142 - (more) correctly calculate stack usage in coro_rss.
143 - Coro::Storable::blocking_* did not properly lock
144 resulting in races between coroutines.
145 - added Coro::Storable::guard.
146 - stopping to trace a coroutine could destroy the cctx of
147 an unrelated coroutine.
148 - explain the relationship between Perl and C coroutines in
149 more detail in Coro::State.
150 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
151 causing a fork per resolve. This also affected Coro::Socket.
152 - switch to a separate stack in $coro->call/eval to avoid
153 invalidating pointers.
154
1554.03 Sat Oct 6 21:24:00 CEST 2007
156 - added Coro::throw method.
157 - minor code cleanups.
158
1594.02 Sat Oct 6 02:36:47 CEST 2007
160 - fix a very minor per-coroutine memleak (a single codereference).
161 - fixed a bug where the currently in-use c context would be freed
162 prematurely (can happen only when programs change the stacksize
163 or use tracing).
164 - tracing can no longer keep a coro alive after it terminated.
165 - do static branch prediction in the common path for gcc. gives
166 about 2-5% speed improvement here.
167
1684.01 Fri Oct 5 22:10:49 CEST 2007
169 - instead of recreating *a* standard output handle we simply
170 use STDOUT, which is faster and hopefully more robust.
171
1724.0 Fri Oct 5 12:56:00 CEST 2007
173 - incompatibly changed Coro::Storable::freeze.
174 - major new feature: added Coro::Debug, for interactive coroutine
175 debugging, tracing and much more.
176 - major bug fix: unbelievable, but true: $_, $/ and many other
177 "saved" variables actually weren't being saved. This has been fixed,
178 of course, while increasing performance while losing all the save
179 flags.
180 - save flags are gone, and all the api functions dealing with them.
181 - added Coro::Semaphore::adjust.
182 - added Coro::Util::fork_eval.
183 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
184 - added Coro::killall.
185 - reduce initial stack sizes to allow for "micro-coroutines".
186 - better async_pool resource management, moved parts of async_pool
187 handling to XS (major speed improvement).
188 - actually croak before modifying important data structures.
189 - refuse to transfer while compiling.
190 - possibly support eval EXPR better now.
191 - enable assembly per default on linux+bsd x86+amd64.
192 - all internal members were renamed _something for easier subclassing.
193 - many minor tweaks.
194
1953.63 Wed May 16 14:10:06 CEST 2007
196 - implement handcoded assembly for x86/amd64 SVR ABI.
197
1983.62 Fri Apr 27 21:36:06 CEST 2007
199 - upgrade libcoro (which might set unwind info correctly).
200 - change default on linux to setjmp/longjmp.
201
2023.61 Thu Apr 19 12:36:18 CEST 2007
203 - Coro::Storable caused an endless loop when thawing invalid
204 pst's sometimes.
205 - use a Semaphore in Coro::Storable, as Storable doesn't
206 seem to be reentrant (although it is documented to
207 be threadsafe...).
208 - fix Coro::Signal to bring back the original unreliable
209 but stateful semantics.
210 - fixed a lot of typos in Coro.pm (patch submitted by David
211 Steinbrunner, which applied flawlessly).
212
2133.6 Sat Apr 14 17:13:31 CEST 2007
214 - added some bugfixes to get eg/myhttpd working again.
215 - added Coro::Storable for often-cede'ing freeze/thaw.
216 - try to do a clean exit when a coroutine calls exit
217 (EXPERIMENTAL).
218 - got rid of indirect call through _coro_init.
219 - updated the partly antique examples in eg/ to
220 work again and be a bit less magic, too.
221 - fixed Coro::Signal semantics to work as documented again.
222
2233.55 Sun Mar 25 01:20:47 CET 2007
224 - add SAVE_DEFFH to save the default filehandle and enable
225 it by default.
226 - finally move socket-operations from Coro::Socket to Coro::Handle
227 to be able to unblock foreign sockets.
228 - add Coro::State::save_also and guarded_save.
229 - add count accessor to Coro::Semaphore.
230 - add Coro::State::cctx_stacksize.
231 - just for the fun of it, do not rely on implicit context,
232 which can dramatically improve performance, but people
233 using windows-process-emulation perls do not care much about
234 performance.
235
2363.51 Sun Mar 4 14:18:04 CET 2007
237 - fixed a problem when you weakened references to Coro::State's
238 (patch by Yuval Kogman).
239
2403.501 Wed Feb 28 12:44:07 CET 2007
241 - rename some global symbols as macosx from hell redefines
242 them without asking.
243
2443.5 Tue Feb 13 20:22:53 CET 2007
245 - do AnyEvent model detection earlier, avoiding problems
246 caused by first using AnyEvent and later Coro::Event.
247 - implement and document Coro::Event event objects.
248 - fix a potential problem in Coro::Event causing crashes.
249 - initialise PL_comppad when creating a new coroutine,
250 avoids crashes on early coro destruction.
251
2523.41 Mon Jan 22 19:19:49 CET 2007
253 - readline on Coro::Handle did not support undefined $/,
254 nor did it deliver partial lines on EOF or error.
255 - implement malloc fallback for stack allocation because
256 stupid broken idiotic OSX has a stupid broken
257 idiotic fits-the-whole-os mmap "implementation" and
258 my dick feels longer if Coro is portable even to
259 obsolete platforms.
260
2613.4 Fri Jan 19 21:52:54 CET 2007
262 - remove t/09_timer.t, as it isn't really testing much
263 but was rather flaky in practise.
264 - async_pool coro would keep arguments and callback alive until
265 it was reused.
266 - cancellation of a coroutine could cause spurious idle calls
267 in cede_notself.
268
2693.3 Sat Jan 6 03:45:00 CET 2007
270 - implement $coro->on_destroy.
271 - Coro::Event blocking semantics have been changed,
272 documented and - hopefully - improved.
273 - fix nice adding, not subtracting, from priority.
274 - fix ->prio and api_is_ready (patch by Mark Hinds).
275 - fixed an assert ("... == prev__cctx->idle_te")
276 that could errronously trigger.
277 - fix various large and small memleaks.
278 - use a (hopefully) more stable cancel implementation
279 that immediately frees the coroutine data.
280 - cede/cede_notself return a status now.
281 - added Coro::guard function.
282 - added a global coroutine pool for jobs (on my machine,
283 I can create and execute 48k simple coros/s with async,
284 and 128k coros with async_pool).
285 - Coro::AIO now uses the coroutine priority as io priority.
286
2873.2 Fri Dec 22 05:07:09 CET 2006
288 - improve portability to slightly older perls.
289 - use cleaner coroutine destruction.
290 - simplify configuration for users.
291 - optionally (unrecommended) prefer perl functions over
292 their coro replacements.
293
2943.11 Tue Dec 5 13:11:24 CET 2006
295 - fixed some bogus assert's, but as perl.h disables assert even
296 without NDEBUG (thank you very much), not too many people should
297 notice (that did include myself). Andreas König noticed, though :)
298 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
299 it. Also noticed by Andreas König :)
300 - save/restore tainted status.
301 - verified to pass the testsuite on my 5.9.5.
302
3033.1 Mon Dec 4 23:03:40 CET 2006
304 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
305 - incompatible change: transfer flags are now per-state.
306 - give a better error message on deadlock.
307 - document Coro::nready.
308 - enhanced testsuite.
309
3103.01 Sun Dec 3 23:47:42 CET 2006
311 - forgot to include Coro::Timer.
312
3133.0 Sun Dec 3 22:57:25 CET 2006
314 - the "FINALLY COMPLETELY STABLE" release (coming soon:
315 the "FAMOUS LAST WORDS" release).
316 - implement a new stack sharing algorithm, which uses a stack
317 pool (size currently hardcoded).
318 - make stack sharing mandatory (it no longer uses a heuristic).
319 - eval/die no longer cause weird problems under heavy use.
320 - Coro::Event could cause livelocks if it was used but
321 no Coro::Event watchers were used.
322 - Coro::Event now uses asynccheck as prepare does not
323 check for changed watchers.
324 - Coro::Event allows multiple waiting coros and will wake up one
325 per event.
326 - Coro::Event should be cleaner and more efficient now.
327 - new utility function Coro::unblock_sub.
328 - document the sad fact that Event is no longer reentrant.
329 - putting a coroutine into the ready queue twice could under
330 some circumstances lead to stack corruption.
331 - minor incompatibility: subclassing Coro::State is supported
332 directly now without going through a _coro_state member.
333 - state/coro switching is much faster now.
334 - very minor optimisations and code/documentation cleanup.
335 - avoid problems due to compiler inlining.
336 - removed timers from Coro::Timer -> use AnyEvent instead.
337 - replaced Coro::idle coroutine by (cleaner) idle handler.
338 - updated to newest libcoro.
339 - implement enhanced support for valgrind.
340 - implement is_ready and return value for ready.
341 - removed Coro::Cont, it was a misnomer (it's generators),
342 and it was somewhat annoying to get it right. Will come back
343 if somebody asks for it :)
344 - many ->wait methods and Coro::Event could return
345 spuriously without the event having happened.
346
3472.5 Tue Nov 7 12:22:33 CET 2006
348 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
349 use AnyEvent, moved them to Coro/.
350 - added Coro::LWP which contains all the uglyness required to
351 make LWP non-blocking.
352 - should work with perl 5.9.x now (Andreas König made me do it).
353 - fixed another bug in Coro::Select when the timeout was undef.
354 - reuse PL_start_env for all coros, saves some memory per coroutine.
355 - manage PL_top_env differently, hopefully to avoid panic: top_env.
356 - timeout argument was not properly used in Coro::Socket.
357 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
358 - emulate undocumented(!) functionality of IO::Socket required
359 by LWP(!!).
360 - updated eg/lwp to work with newer lwp's.
361 - remove "FATAL: uncaught exception" prefix. Coroutines that die
362 kill the whole process, just as exceptions in the main "coroutine"
363 did already.
364
3652.1 Wed Nov 1 23:01:13 CET 2006
366 - fix a long-standing bug in Coro::Select where select with
367 zero timeout would instead change the current default filehandle.
368 - use a simpler and hopefully more robust way to clone padlists
369 (uses less memory and a perl function instead of our own).
370 - coro can now create a stack guard area on many architectures.
371 - Coro::AIO properly reexports additional functions from IO::AIO.
372 - updated libcoro with a workaround for OS X,
373 pach and testing by Michael Schwern.
374
3752.0 Tue Oct 24 05:47:17 CEST 2006
376 - support additional aio requests in Coro::AIO.
377
3781.9 (never properly released due to a glitch)
379
3801.8 Thu Feb 2 00:59:06 CET 2006
381 - applied suggested patch by SAMV to avoid problems during stupid
382 mark & sweep gc run.
383 - applied patch by Scott Walters for 5.9.3 compatibility.
384
3851.7 Tue Dec 27 01:41:58 CET 2005
386 - added Coro::AIO, a thin wrapper around IO::AIO.
387 - improved Makefile.PL explanations.
388
3891.6 Mon Dec 12 21:30:05 CET 2005
390 - additionally save PM_curpm might fix as-of-yet
391 unseen problems with regex matches being attributed to the
392 wrong package.
393 - add t/10_bugs.t, which currently checks against imho broken
394 perls that use 0.26MB of stack space per Perl_magic_get
395 invocation (newer linuxes) as opposed to the 0.0002MB perl
396 normally uses.
397 - make stacksize configurable for the ultimate debian experience.
398
3991.51 Mon Dec 12 18:48:36 CET 2005
400 - remove debugging warn() accidentally left in Coro::Select.
401
4021.5 Tue Nov 29 13:32:44 CET 2005
403 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
404 - fix Coro::Select 'select'.
405 - strict'ify some modules.
406 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
407 - use XSLoader in selected modules.
408 - remove some 5.6 compatibility cruft.
409
4101.4 Tue Sep 6 00:11:05 CEST 2005
411 - libcoro did not take into account the trampoline on amd64,
412 when 'l'inux method was used.
413
4141.31 Tue Aug 30 23:31:33 CEST 2005
415 - some portability fixes/workarounds.
416
4171.3 Sat Aug 20 03:08:56 CEST 2005
418 - no code changes. module seems to work fine.
419 - improve Coro::State docs, remove reference to nonexisting
420 Coro::State::flush method.
421 - no longer autodetect windows, present it as an option instead.
422
4231.2 Mon May 16 02:00:55 CEST 2005
424 - included libcoro.c earlier in State.xs, might improve portability.
425 - use a faster and possibly more stable Coro::Cont implementation.
426 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
427 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
428 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
429
4301.11 Thu Mar 3 18:00:52 CET 2005
431 - change of contact address.
432
4331.1 Tue Feb 22 20:51:16 CET 2005
434 - support [l]inux method on amd64.
435 - allow some context switches while compiling/eval'ing.
436
4371.0 Tue Aug 10 03:47:27 CEST 2004
438 - Event 0.89 fixes the bug again.
439 - fix the remaining(??) memleak. I didn't free the cache-AV for
440 padlists, so one AV per created anon-sub leaked.
441
4420.97 Fri May 14 15:23:32 CEST 2004
443 - remove stupid gcc extension that was an experiment only anyway.
444
4450.96 Thu May 13 18:09:29 CEST 2004
446 - tell people if they have yet another broken Event variant.
3 - made Coro to work _better_ with threads (it seems that, as long 447 - made Coro to work _better_ with threads (it seems that, as long
4 as you use Coros in one thread only everything will work fine. 448 as you use Coros in one thread only everything will work fine.
5 Looking at the perl source the problem might be missing locking 449 Looking at the perl source the problem might be missing locking
6 between Coro and some perl internal routines. That's not easily 450 between Coro and some perl internal routines. That's not easily
7 fixable). 451 fixable).
452 - (hopefully) got rid of the static xnext inside transfer.
8 453
90.95 Sun Feb 15 03:20:28 CET 2004 4540.95 Sun Feb 15 03:20:28 CET 2004
10 - removed Coro::State::flush, implemented a new and much 455 - removed Coro::State::flush, implemented a new and much
11 faster caching mechanism by attaching magic to the CV. 456 faster caching mechanism by attaching magic to the CV.
12 - a memleak with (real) closures remains. 457 - a memleak with (real) closures remains.

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines