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Comparing Coro/Changes (file contents):
Revision 1.142 by root, Mon Nov 6 18:44:19 2006 UTC vs.
Revision 1.342 by root, Fri May 9 22:04:37 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 - made Coro::Util and Coro::Select use AnyEvent, moved to Coro/. 8 TODO: Coro::AnyEvent
9 - completely reworked the Coro manpage.
10 - added Coro::AnyEvent, generic event loop integration.
11 - implement cancel, ready and kill commands in Coro::Debug.
12 - document find_coro in Coro::Debug.
13
144.6 Sat Apr 26 10:05:14 CEST 2008
15 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
16 by the Coro module. It was a mistake to have it in the first place.
17 - (experimental) support for activestate perl 5.10 (method "w").
18 - (experimental) support for strawberry perl (method "a").
19 - coro_sigelem_set did not return a value although it had to,
20 actual impact unknown.
21
224.51 Mon Apr 14 13:28:27 CEST 2008
23 - make it compile again on 5.8.
24
254.50 Thu Apr 10 09:43:17 CEST 2008
26 - I did it twice! (see 4.49).
27
284.49 Sun Apr 6 21:23:31 CEST 2008
29 - grr, instead of compiling the recent changes on 5.10 only they
30 were compiled on 5.8 only.
31
324.48 Sun Apr 6 20:36:46 CEST 2008
33 - allow coroutine switches during eval's under 5.10.x, as it seems
34 the parser is a per-interpreter option now, so this is safe
35 (this might fix the odd crashing bug).
36 - drop support for 5.9.x versions: they are dead, jim.
37
384.47 Sun Apr 6 00:37:52 CEST 2008
39 - force cctx allocation on API calls: we know we need to force one
40 and gcc actually manages to confuse our heuristic nowadays,
41 leading to crashes and worse.
42 - document force_cctx.
43
444.46 Fri Apr 4 22:05:43 CEST 2008
45 - upgrade libcoro, resulting in pthread-backend (which was only created
46 to fulfill the rules of the programming languages shootout).
47
484.45 Thu Mar 13 11:55:36 CET 2008
49 - fix a file leaking bug in eg/mhyttpd that would allow
50 downloading of any file (reported by oesi).
51 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
52 (also add testcase).
53 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
54 apparently having loads of fun with that).
55 - implement $state->swap_defsv, ->swap_defav and document ->throw.
56
574.4 Wed Feb 13 16:44:29 CET 2008
58 - only assume .cfi pseudo isns exist on GNU/Linux.
59 - add get_timed method to Coro::Channels.
60 - fixed Coro::Debug manpage.
61 - perl 5.11 compatbility improvement based on patch by
62 Andreas König.
63
644.37 Sun Jan 20 11:25:23 CET 2008
65 - soften the check for an active parser for perl 5.10 (avoiding
66 "Coro::State::transfer called while parsing" in many cases).
67
684.36 Sun Jan 13 10:53:56 CET 2008
69 - reset diehook when terminating from an async_pool as to not
70 trigger any __DIE__ handlers.
71
724.35 Sun Jan 13 04:14:13 CET 2008
73 - "bt" debug command now displays any exceptions
74 from longmess and also skips the innermost
75 stackframes, giving more useufl output.
76 - allow backtraces in coroutines blocked in Coro::EV,
77 at a <1% speed hit.
78 - handle localising of $SIG{__WARN__} and __DIE__
79 properly (with a proper amount of dirty hacking).
80
814.34 Sat Dec 22 17:49:53 CET 2007
82 - upgrade to EV version 2.0 API.
83
844.33 Mon Dec 17 08:36:12 CET 2007
85 - make Coro::AIO etc. loadable in the absence of EV.
86
874.32 Mon Dec 17 07:46:02 CET 2007
88 - majorly improved Coro::Handle's performance with Coro::EV.
89 - implemented the until now mythical Coro::BDB module.
90 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
91
924.31 Wed Dec 5 12:32:39 CET 2007
93 - remove warn statement form Coro::Util.
94
954.3 Tue Dec 4 20:33:14 CET 2007
96 - calls to the idle function could cause stack corruption
97 when the stack changed.
98 - do no longer rely on the presence of EV::DNS if EV is used
99 (because it is gone), but instead take avdantage of EV::ADNS
100 if available.
101 - add ($) prototypes to all functions in Coro::Storable.
102 - use a conventional (safer) idle callback in Coro::EV.
103 - do accept quickly in Coro::Debug to avoid endless loops.
104
1054.22 Fri Nov 30 16:04:04 CET 2007
106 - really use optimised versions for Event and EV in Coro::Util
107 and Coro::Handle.
108
1094.21 Sun Nov 25 10:48:59 CET 2007
110 - fix a spurious memory read.
111 - Coro::EV no longer keeps the eventloop "alive".
112
1134.2 Fri Nov 9 20:47:05 CET 2007
114 - enable/disable tracing from a new coroutine, not a pooled one.
115 - fix a memleak in Coro::Event.
116 - removed killall call from fork_eval.
117 - made sure store_fd is already loaded so that fork_eval
118 does not have to parse autoload in each subprocess.
119 - only use assembly method if -O switch is in $Config{optimize}.
120 - add (optional) Coro::EV module, so far the best event loop module
121 directly supported by Coro.
122 - if the event model is EV, use EV::DNS to resolve
123 stuff in Coro::Util.
124 - don't get confused by multiple event notifications in Coro::Handle.
125 - initial support for EV (libevent interface).
126 - require Event and EV using configure_requires, to force their existance.
127
1284.13 Wed Oct 24 07:26:45 CEST 2007
129 - add Coro::Storable::blocking_thaw.
130 - use a vastly more complicated technique to localise
131 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
132 - use a coroutine for the idle callback Coro::Event,
133 instead of running Event in the current coroutine context.
134 This also catches recursive invocations.
135 - actually report fork errors in gethostbyname and inet_aton.
136
1374.11 Thu Oct 11 02:40:24 CEST 2007
138 - port to threaded perls.
139
1404.1 Thu Oct 11 02:38:16 CEST 2007
141 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
142 be local to each coro (see Coro::State).
143 - incompatible change: for very deep reasons, cede and cede_notself
144 cannot return anything, so nothing will be returned.
145 - possibly bring back 5.10 compatibility (untested).
146 - work around stupid (and wrong) warning on 5.10 :(.
147 - overlay the saved state over the context stack. This saves
148 a few hundred bytes per coroutine on average and also
149 speeds up context switching a bit.
150 - further tune default stack sizes.
151 - (more) correctly calculate stack usage in coro_rss.
152 - Coro::Storable::blocking_* did not properly lock
153 resulting in races between coroutines.
154 - added Coro::Storable::guard.
155 - stopping to trace a coroutine could destroy the cctx of
156 an unrelated coroutine.
157 - explain the relationship between Perl and C coroutines in
158 more detail in Coro::State.
159 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
160 causing a fork per resolve. This also affected Coro::Socket.
161 - switch to a separate stack in $coro->call/eval to avoid
162 invalidating pointers.
163
1644.03 Sat Oct 6 21:24:00 CEST 2007
165 - added Coro::throw method.
166 - minor code cleanups.
167
1684.02 Sat Oct 6 02:36:47 CEST 2007
169 - fix a very minor per-coroutine memleak (a single codereference).
170 - fixed a bug where the currently in-use c context would be freed
171 prematurely (can happen only when programs change the stacksize
172 or use tracing).
173 - tracing can no longer keep a coro alive after it terminated.
174 - do static branch prediction in the common path for gcc. gives
175 about 2-5% speed improvement here.
176
1774.01 Fri Oct 5 22:10:49 CEST 2007
178 - instead of recreating *a* standard output handle we simply
179 use STDOUT, which is faster and hopefully more robust.
180
1814.0 Fri Oct 5 12:56:00 CEST 2007
182 - incompatibly changed Coro::Storable::freeze.
183 - major new feature: added Coro::Debug, for interactive coroutine
184 debugging, tracing and much more.
185 - major bug fix: unbelievable, but true: $_, $/ and many other
186 "saved" variables actually weren't being saved. This has been fixed,
187 of course, while increasing performance while losing all the save
188 flags.
189 - save flags are gone, and all the api functions dealing with them.
190 - added Coro::Semaphore::adjust.
191 - added Coro::Util::fork_eval.
192 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
193 - added Coro::killall.
194 - reduce initial stack sizes to allow for "micro-coroutines".
195 - better async_pool resource management, moved parts of async_pool
196 handling to XS (major speed improvement).
197 - actually croak before modifying important data structures.
198 - refuse to transfer while compiling.
199 - possibly support eval EXPR better now.
200 - enable assembly per default on linux+bsd x86+amd64.
201 - all internal members were renamed _something for easier subclassing.
202 - many minor tweaks.
203
2043.63 Wed May 16 14:10:06 CEST 2007
205 - implement handcoded assembly for x86/amd64 SVR ABI.
206
2073.62 Fri Apr 27 21:36:06 CEST 2007
208 - upgrade libcoro (which might set unwind info correctly).
209 - change default on linux to setjmp/longjmp.
210
2113.61 Thu Apr 19 12:36:18 CEST 2007
212 - Coro::Storable caused an endless loop when thawing invalid
213 pst's sometimes.
214 - use a Semaphore in Coro::Storable, as Storable doesn't
215 seem to be reentrant (although it is documented to
216 be threadsafe...).
217 - fix Coro::Signal to bring back the original unreliable
218 but stateful semantics.
219 - fixed a lot of typos in Coro.pm (patch submitted by David
220 Steinbrunner, which applied flawlessly).
221
2223.6 Sat Apr 14 17:13:31 CEST 2007
223 - added some bugfixes to get eg/myhttpd working again.
224 - added Coro::Storable for often-cede'ing freeze/thaw.
225 - try to do a clean exit when a coroutine calls exit
226 (EXPERIMENTAL).
227 - got rid of indirect call through _coro_init.
228 - updated the partly antique examples in eg/ to
229 work again and be a bit less magic, too.
230 - fixed Coro::Signal semantics to work as documented again.
231
2323.55 Sun Mar 25 01:20:47 CET 2007
233 - add SAVE_DEFFH to save the default filehandle and enable
234 it by default.
235 - finally move socket-operations from Coro::Socket to Coro::Handle
236 to be able to unblock foreign sockets.
237 - add Coro::State::save_also and guarded_save.
238 - add count accessor to Coro::Semaphore.
239 - add Coro::State::cctx_stacksize.
240 - just for the fun of it, do not rely on implicit context,
241 which can dramatically improve performance, but people
242 using windows-process-emulation perls do not care much about
243 performance.
244
2453.51 Sun Mar 4 14:18:04 CET 2007
246 - fixed a problem when you weakened references to Coro::State's
247 (patch by Yuval Kogman).
248
2493.501 Wed Feb 28 12:44:07 CET 2007
250 - rename some global symbols as macosx from hell redefines
251 them without asking.
252
2533.5 Tue Feb 13 20:22:53 CET 2007
254 - do AnyEvent model detection earlier, avoiding problems
255 caused by first using AnyEvent and later Coro::Event.
256 - implement and document Coro::Event event objects.
257 - fix a potential problem in Coro::Event causing crashes.
258 - initialise PL_comppad when creating a new coroutine,
259 avoids crashes on early coro destruction.
260
2613.41 Mon Jan 22 19:19:49 CET 2007
262 - readline on Coro::Handle did not support undefined $/,
263 nor did it deliver partial lines on EOF or error.
264 - implement malloc fallback for stack allocation because
265 stupid broken idiotic OSX has a stupid broken
266 idiotic fits-the-whole-os mmap "implementation" and
267 my dick feels longer if Coro is portable even to
268 obsolete platforms.
269
2703.4 Fri Jan 19 21:52:54 CET 2007
271 - remove t/09_timer.t, as it isn't really testing much
272 but was rather flaky in practise.
273 - async_pool coro would keep arguments and callback alive until
274 it was reused.
275 - cancellation of a coroutine could cause spurious idle calls
276 in cede_notself.
277
2783.3 Sat Jan 6 03:45:00 CET 2007
279 - implement $coro->on_destroy.
280 - Coro::Event blocking semantics have been changed,
281 documented and - hopefully - improved.
282 - fix nice adding, not subtracting, from priority.
283 - fix ->prio and api_is_ready (patch by Mark Hinds).
284 - fixed an assert ("... == prev__cctx->idle_te")
285 that could errronously trigger.
286 - fix various large and small memleaks.
287 - use a (hopefully) more stable cancel implementation
288 that immediately frees the coroutine data.
289 - cede/cede_notself return a status now.
290 - added Coro::guard function.
291 - added a global coroutine pool for jobs (on my machine,
292 I can create and execute 48k simple coros/s with async,
293 and 128k coros with async_pool).
294 - Coro::AIO now uses the coroutine priority as io priority.
295
2963.2 Fri Dec 22 05:07:09 CET 2006
297 - improve portability to slightly older perls.
298 - use cleaner coroutine destruction.
299 - simplify configuration for users.
300 - optionally (unrecommended) prefer perl functions over
301 their coro replacements.
302
3033.11 Tue Dec 5 13:11:24 CET 2006
304 - fixed some bogus assert's, but as perl.h disables assert even
305 without NDEBUG (thank you very much), not too many people should
306 notice (that did include myself). Andreas König noticed, though :)
307 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
308 it. Also noticed by Andreas König :)
309 - save/restore tainted status.
310 - verified to pass the testsuite on my 5.9.5.
311
3123.1 Mon Dec 4 23:03:40 CET 2006
313 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
314 - incompatible change: transfer flags are now per-state.
315 - give a better error message on deadlock.
316 - document Coro::nready.
317 - enhanced testsuite.
318
3193.01 Sun Dec 3 23:47:42 CET 2006
320 - forgot to include Coro::Timer.
321
3223.0 Sun Dec 3 22:57:25 CET 2006
323 - the "FINALLY COMPLETELY STABLE" release (coming soon:
324 the "FAMOUS LAST WORDS" release).
325 - implement a new stack sharing algorithm, which uses a stack
326 pool (size currently hardcoded).
327 - make stack sharing mandatory (it no longer uses a heuristic).
328 - eval/die no longer cause weird problems under heavy use.
329 - Coro::Event could cause livelocks if it was used but
330 no Coro::Event watchers were used.
331 - Coro::Event now uses asynccheck as prepare does not
332 check for changed watchers.
333 - Coro::Event allows multiple waiting coros and will wake up one
334 per event.
335 - Coro::Event should be cleaner and more efficient now.
336 - new utility function Coro::unblock_sub.
337 - document the sad fact that Event is no longer reentrant.
338 - putting a coroutine into the ready queue twice could under
339 some circumstances lead to stack corruption.
340 - minor incompatibility: subclassing Coro::State is supported
341 directly now without going through a _coro_state member.
342 - state/coro switching is much faster now.
343 - very minor optimisations and code/documentation cleanup.
344 - avoid problems due to compiler inlining.
345 - removed timers from Coro::Timer -> use AnyEvent instead.
346 - replaced Coro::idle coroutine by (cleaner) idle handler.
347 - updated to newest libcoro.
348 - implement enhanced support for valgrind.
349 - implement is_ready and return value for ready.
350 - removed Coro::Cont, it was a misnomer (it's generators),
351 and it was somewhat annoying to get it right. Will come back
352 if somebody asks for it :)
353 - many ->wait methods and Coro::Event could return
354 spuriously without the event having happened.
355
3562.5 Tue Nov 7 12:22:33 CET 2006
357 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
358 use AnyEvent, moved them to Coro/.
6 - added Coro::LWP which contains all the uglyness required to 359 - added Coro::LWP which contains all the uglyness required to
7 make LWP non-blocking. 360 make LWP non-blocking.
8 - should work with perl 5.9.x now (Andreas König made me do it). 361 - 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. 362 - fixed another bug in Coro::Select when the timeout was undef.
10 - reuse PL_start_env for all coros, saves some memory per coroutine. 363 - reuse PL_start_env for all coros, saves some memory per coroutine.

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