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Comparing Coro/Changes (file contents):
Revision 1.151 by root, Thu Nov 23 23:54:02 2006 UTC vs.
Revision 1.346 by root, Sat May 10 22:32:40 2008 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: check wether stack-sharing is still effective 3TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO.
4TODO: more effective stack sharing by having one "default stack" for "simple" coroutines? 4TODO: maybe implement a default message channel, very much like Erlang's
5TODO: verify exception frame changes and force stack copies? 5 actor model (which is cool in a lot of important aspects (failures!),
6#2 0x00002ac4a63f2622 in api_schedule () at State.xs:895 6 but very lacking in others (higher level ipc)).
7#3 0x00002ac4a63f26a9 in XS_Coro_schedule (cv=0x911700) at State.xs:1095
8#4 0x00000000004941b8 in Perl_pp_entersub () at pp_hot.c:2869
9#5 0x0000000000489fee in Perl_runops_standard () at run.c:37
10#6 0x000000000041dec7 in Perl_call_sv (sv=0xbfd8ea0, flags=<value optimized out>) at perl.c:2806
11#7 0x00002ac4a6606ad3 in pe_event_invoke (ev=0x1ada6e0) at c/ev.c:308
12#8 0x00002ac4a6608878 in one_event (tm=60) at c/queue.c:91
13#9 0x00002ac4a6608f4f in XS_Event_one_event (cv=<value optimized out>) at c/queue.c:234
14#10 0x00000000004941b8 in Perl_pp_entersub () at pp_hot.c:2869
15#11 0x0000000000489fee in Perl_runops_standard () at run.c:37
16#12 0x00000000004c4287 in S_docatch (o=<value optimized out>) at pp_ctl.c:2566
17#13 0x0000000000489fee in Perl_runops_standard () at run.c:37
18#14 0x00000000004c4287 in S_docatch (o=<value optimized out>) at pp_ctl.c:2566
19#15 0x0000000000489fee in Perl_runops_standard () at run.c:37
20#16 0x000000000041e38c in Perl_call_sv (sv=<value optimized out>, flags=140) at perl.c:2806
21#17 0x00002ac4a63f1d72 in setup_coro (arg=0x881d80) at State.xs:620
22#18 0x00002ac4a63f28b7 in coro_init () at libcoro/coro.c:78
23#19 0x0000000000000000 in ?? ()
24 7
25 - minor documentation cleanup. 84.7 Sun May 11 00:32:19 CEST 2008
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 - incompatible change: rename has_stack to has_cctx.
14 - Coro::AIO and Coro::BDB no longer force event model detection,
15 use AnyEvent::AIO and AnyEvent::BDB.
16
174.6 Sat Apr 26 10:05:14 CEST 2008
18 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
19 by the Coro module. It was a mistake to have it in the first place.
20 - (experimental) support for activestate perl 5.10 (method "w").
21 - (experimental) support for strawberry perl (method "a").
22 - coro_sigelem_set did not return a value although it had to,
23 actual impact unknown.
24
254.51 Mon Apr 14 13:28:27 CEST 2008
26 - make it compile again on 5.8.
27
284.50 Thu Apr 10 09:43:17 CEST 2008
29 - I did it twice! (see 4.49).
30
314.49 Sun Apr 6 21:23:31 CEST 2008
32 - grr, instead of compiling the recent changes on 5.10 only they
33 were compiled on 5.8 only.
34
354.48 Sun Apr 6 20:36:46 CEST 2008
36 - allow coroutine switches during eval's under 5.10.x, as it seems
37 the parser is a per-interpreter option now, so this is safe
38 (this might fix the odd crashing bug).
39 - drop support for 5.9.x versions: they are dead, jim.
40
414.47 Sun Apr 6 00:37:52 CEST 2008
42 - force cctx allocation on API calls: we know we need to force one
43 and gcc actually manages to confuse our heuristic nowadays,
44 leading to crashes and worse.
45 - document force_cctx.
46
474.46 Fri Apr 4 22:05:43 CEST 2008
48 - upgrade libcoro, resulting in pthread-backend (which was only created
49 to fulfill the rules of the programming languages shootout).
50
514.45 Thu Mar 13 11:55:36 CET 2008
52 - fix a file leaking bug in eg/mhyttpd that would allow
53 downloading of any file (reported by oesi).
54 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
55 (also add testcase).
56 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
57 apparently having loads of fun with that).
58 - implement $state->swap_defsv, ->swap_defav and document ->throw.
59
604.4 Wed Feb 13 16:44:29 CET 2008
61 - only assume .cfi pseudo isns exist on GNU/Linux.
62 - add get_timed method to Coro::Channels.
63 - fixed Coro::Debug manpage.
64 - perl 5.11 compatbility improvement based on patch by
65 Andreas König.
66
674.37 Sun Jan 20 11:25:23 CET 2008
68 - soften the check for an active parser for perl 5.10 (avoiding
69 "Coro::State::transfer called while parsing" in many cases).
70
714.36 Sun Jan 13 10:53:56 CET 2008
72 - reset diehook when terminating from an async_pool as to not
73 trigger any __DIE__ handlers.
74
754.35 Sun Jan 13 04:14:13 CET 2008
76 - "bt" debug command now displays any exceptions
77 from longmess and also skips the innermost
78 stackframes, giving more useufl output.
79 - allow backtraces in coroutines blocked in Coro::EV,
80 at a <1% speed hit.
81 - handle localising of $SIG{__WARN__} and __DIE__
82 properly (with a proper amount of dirty hacking).
83
844.34 Sat Dec 22 17:49:53 CET 2007
85 - upgrade to EV version 2.0 API.
86
874.33 Mon Dec 17 08:36:12 CET 2007
88 - make Coro::AIO etc. loadable in the absence of EV.
89
904.32 Mon Dec 17 07:46:02 CET 2007
91 - majorly improved Coro::Handle's performance with Coro::EV.
92 - implemented the until now mythical Coro::BDB module.
93 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
94
954.31 Wed Dec 5 12:32:39 CET 2007
96 - remove warn statement form Coro::Util.
97
984.3 Tue Dec 4 20:33:14 CET 2007
99 - calls to the idle function could cause stack corruption
100 when the stack changed.
101 - do no longer rely on the presence of EV::DNS if EV is used
102 (because it is gone), but instead take avdantage of EV::ADNS
103 if available.
104 - add ($) prototypes to all functions in Coro::Storable.
105 - use a conventional (safer) idle callback in Coro::EV.
106 - do accept quickly in Coro::Debug to avoid endless loops.
107
1084.22 Fri Nov 30 16:04:04 CET 2007
109 - really use optimised versions for Event and EV in Coro::Util
110 and Coro::Handle.
111
1124.21 Sun Nov 25 10:48:59 CET 2007
113 - fix a spurious memory read.
114 - Coro::EV no longer keeps the eventloop "alive".
115
1164.2 Fri Nov 9 20:47:05 CET 2007
117 - enable/disable tracing from a new coroutine, not a pooled one.
118 - fix a memleak in Coro::Event.
119 - removed killall call from fork_eval.
120 - made sure store_fd is already loaded so that fork_eval
121 does not have to parse autoload in each subprocess.
122 - only use assembly method if -O switch is in $Config{optimize}.
123 - add (optional) Coro::EV module, so far the best event loop module
124 directly supported by Coro.
125 - if the event model is EV, use EV::DNS to resolve
126 stuff in Coro::Util.
127 - don't get confused by multiple event notifications in Coro::Handle.
128 - initial support for EV (libevent interface).
129 - require Event and EV using configure_requires, to force their existance.
130
1314.13 Wed Oct 24 07:26:45 CEST 2007
132 - add Coro::Storable::blocking_thaw.
133 - use a vastly more complicated technique to localise
134 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
135 - use a coroutine for the idle callback Coro::Event,
136 instead of running Event in the current coroutine context.
137 This also catches recursive invocations.
138 - actually report fork errors in gethostbyname and inet_aton.
139
1404.11 Thu Oct 11 02:40:24 CEST 2007
141 - port to threaded perls.
142
1434.1 Thu Oct 11 02:38:16 CEST 2007
144 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
145 be local to each coro (see Coro::State).
146 - incompatible change: for very deep reasons, cede and cede_notself
147 cannot return anything, so nothing will be returned.
148 - possibly bring back 5.10 compatibility (untested).
149 - work around stupid (and wrong) warning on 5.10 :(.
150 - overlay the saved state over the context stack. This saves
151 a few hundred bytes per coroutine on average and also
152 speeds up context switching a bit.
153 - further tune default stack sizes.
154 - (more) correctly calculate stack usage in coro_rss.
155 - Coro::Storable::blocking_* did not properly lock
156 resulting in races between coroutines.
157 - added Coro::Storable::guard.
158 - stopping to trace a coroutine could destroy the cctx of
159 an unrelated coroutine.
160 - explain the relationship between Perl and C coroutines in
161 more detail in Coro::State.
162 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
163 causing a fork per resolve. This also affected Coro::Socket.
164 - switch to a separate stack in $coro->call/eval to avoid
165 invalidating pointers.
166
1674.03 Sat Oct 6 21:24:00 CEST 2007
168 - added Coro::throw method.
169 - minor code cleanups.
170
1714.02 Sat Oct 6 02:36:47 CEST 2007
172 - fix a very minor per-coroutine memleak (a single codereference).
173 - fixed a bug where the currently in-use c context would be freed
174 prematurely (can happen only when programs change the stacksize
175 or use tracing).
176 - tracing can no longer keep a coro alive after it terminated.
177 - do static branch prediction in the common path for gcc. gives
178 about 2-5% speed improvement here.
179
1804.01 Fri Oct 5 22:10:49 CEST 2007
181 - instead of recreating *a* standard output handle we simply
182 use STDOUT, which is faster and hopefully more robust.
183
1844.0 Fri Oct 5 12:56:00 CEST 2007
185 - incompatibly changed Coro::Storable::freeze.
186 - major new feature: added Coro::Debug, for interactive coroutine
187 debugging, tracing and much more.
188 - major bug fix: unbelievable, but true: $_, $/ and many other
189 "saved" variables actually weren't being saved. This has been fixed,
190 of course, while increasing performance while losing all the save
191 flags.
192 - save flags are gone, and all the api functions dealing with them.
193 - added Coro::Semaphore::adjust.
194 - added Coro::Util::fork_eval.
195 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
196 - added Coro::killall.
197 - reduce initial stack sizes to allow for "micro-coroutines".
198 - better async_pool resource management, moved parts of async_pool
199 handling to XS (major speed improvement).
200 - actually croak before modifying important data structures.
201 - refuse to transfer while compiling.
202 - possibly support eval EXPR better now.
203 - enable assembly per default on linux+bsd x86+amd64.
204 - all internal members were renamed _something for easier subclassing.
205 - many minor tweaks.
206
2073.63 Wed May 16 14:10:06 CEST 2007
208 - implement handcoded assembly for x86/amd64 SVR ABI.
209
2103.62 Fri Apr 27 21:36:06 CEST 2007
211 - upgrade libcoro (which might set unwind info correctly).
212 - change default on linux to setjmp/longjmp.
213
2143.61 Thu Apr 19 12:36:18 CEST 2007
215 - Coro::Storable caused an endless loop when thawing invalid
216 pst's sometimes.
217 - use a Semaphore in Coro::Storable, as Storable doesn't
218 seem to be reentrant (although it is documented to
219 be threadsafe...).
220 - fix Coro::Signal to bring back the original unreliable
221 but stateful semantics.
222 - fixed a lot of typos in Coro.pm (patch submitted by David
223 Steinbrunner, which applied flawlessly).
224
2253.6 Sat Apr 14 17:13:31 CEST 2007
226 - added some bugfixes to get eg/myhttpd working again.
227 - added Coro::Storable for often-cede'ing freeze/thaw.
228 - try to do a clean exit when a coroutine calls exit
229 (EXPERIMENTAL).
230 - got rid of indirect call through _coro_init.
231 - updated the partly antique examples in eg/ to
232 work again and be a bit less magic, too.
233 - fixed Coro::Signal semantics to work as documented again.
234
2353.55 Sun Mar 25 01:20:47 CET 2007
236 - add SAVE_DEFFH to save the default filehandle and enable
237 it by default.
238 - finally move socket-operations from Coro::Socket to Coro::Handle
239 to be able to unblock foreign sockets.
240 - add Coro::State::save_also and guarded_save.
241 - add count accessor to Coro::Semaphore.
242 - add Coro::State::cctx_stacksize.
243 - just for the fun of it, do not rely on implicit context,
244 which can dramatically improve performance, but people
245 using windows-process-emulation perls do not care much about
246 performance.
247
2483.51 Sun Mar 4 14:18:04 CET 2007
249 - fixed a problem when you weakened references to Coro::State's
250 (patch by Yuval Kogman).
251
2523.501 Wed Feb 28 12:44:07 CET 2007
253 - rename some global symbols as macosx from hell redefines
254 them without asking.
255
2563.5 Tue Feb 13 20:22:53 CET 2007
257 - do AnyEvent model detection earlier, avoiding problems
258 caused by first using AnyEvent and later Coro::Event.
259 - implement and document Coro::Event event objects.
260 - fix a potential problem in Coro::Event causing crashes.
261 - initialise PL_comppad when creating a new coroutine,
262 avoids crashes on early coro destruction.
263
2643.41 Mon Jan 22 19:19:49 CET 2007
265 - readline on Coro::Handle did not support undefined $/,
266 nor did it deliver partial lines on EOF or error.
267 - implement malloc fallback for stack allocation because
268 stupid broken idiotic OSX has a stupid broken
269 idiotic fits-the-whole-os mmap "implementation" and
270 my dick feels longer if Coro is portable even to
271 obsolete platforms.
272
2733.4 Fri Jan 19 21:52:54 CET 2007
274 - remove t/09_timer.t, as it isn't really testing much
275 but was rather flaky in practise.
276 - async_pool coro would keep arguments and callback alive until
277 it was reused.
278 - cancellation of a coroutine could cause spurious idle calls
279 in cede_notself.
280
2813.3 Sat Jan 6 03:45:00 CET 2007
282 - implement $coro->on_destroy.
283 - Coro::Event blocking semantics have been changed,
284 documented and - hopefully - improved.
285 - fix nice adding, not subtracting, from priority.
286 - fix ->prio and api_is_ready (patch by Mark Hinds).
287 - fixed an assert ("... == prev__cctx->idle_te")
288 that could errronously trigger.
289 - fix various large and small memleaks.
290 - use a (hopefully) more stable cancel implementation
291 that immediately frees the coroutine data.
292 - cede/cede_notself return a status now.
293 - added Coro::guard function.
294 - added a global coroutine pool for jobs (on my machine,
295 I can create and execute 48k simple coros/s with async,
296 and 128k coros with async_pool).
297 - Coro::AIO now uses the coroutine priority as io priority.
298
2993.2 Fri Dec 22 05:07:09 CET 2006
300 - improve portability to slightly older perls.
301 - use cleaner coroutine destruction.
302 - simplify configuration for users.
303 - optionally (unrecommended) prefer perl functions over
304 their coro replacements.
305
3063.11 Tue Dec 5 13:11:24 CET 2006
307 - fixed some bogus assert's, but as perl.h disables assert even
308 without NDEBUG (thank you very much), not too many people should
309 notice (that did include myself). Andreas König noticed, though :)
310 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
311 it. Also noticed by Andreas König :)
312 - save/restore tainted status.
313 - verified to pass the testsuite on my 5.9.5.
314
3153.1 Mon Dec 4 23:03:40 CET 2006
316 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
317 - incompatible change: transfer flags are now per-state.
318 - give a better error message on deadlock.
319 - document Coro::nready.
320 - enhanced testsuite.
321
3223.01 Sun Dec 3 23:47:42 CET 2006
323 - forgot to include Coro::Timer.
324
3253.0 Sun Dec 3 22:57:25 CET 2006
326 - the "FINALLY COMPLETELY STABLE" release (coming soon:
327 the "FAMOUS LAST WORDS" release).
328 - implement a new stack sharing algorithm, which uses a stack
329 pool (size currently hardcoded).
330 - make stack sharing mandatory (it no longer uses a heuristic).
331 - eval/die no longer cause weird problems under heavy use.
332 - Coro::Event could cause livelocks if it was used but
333 no Coro::Event watchers were used.
334 - Coro::Event now uses asynccheck as prepare does not
335 check for changed watchers.
336 - Coro::Event allows multiple waiting coros and will wake up one
337 per event.
338 - Coro::Event should be cleaner and more efficient now.
339 - new utility function Coro::unblock_sub.
340 - document the sad fact that Event is no longer reentrant.
341 - putting a coroutine into the ready queue twice could under
342 some circumstances lead to stack corruption.
343 - minor incompatibility: subclassing Coro::State is supported
344 directly now without going through a _coro_state member.
345 - state/coro switching is much faster now.
26 - verys minor optimisations and cleanups. 346 - very minor optimisations and code/documentation cleanup.
347 - avoid problems due to compiler inlining.
348 - removed timers from Coro::Timer -> use AnyEvent instead.
349 - replaced Coro::idle coroutine by (cleaner) idle handler.
350 - updated to newest libcoro.
351 - implement enhanced support for valgrind.
352 - implement is_ready and return value for ready.
353 - removed Coro::Cont, it was a misnomer (it's generators),
354 and it was somewhat annoying to get it right. Will come back
355 if somebody asks for it :)
356 - many ->wait methods and Coro::Event could return
357 spuriously without the event having happened.
27 358
282.5 Tue Nov 7 12:22:33 CET 2006 3592.5 Tue Nov 7 12:22:33 CET 2006
29 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket 360 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
30 use AnyEvent, moved them to Coro/. 361 use AnyEvent, moved them to Coro/.
31 - added Coro::LWP which contains all the uglyness required to 362 - added Coro::LWP which contains all the uglyness required to

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