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Comparing Coro/Changes (file contents):
Revision 1.153 by root, Fri Nov 24 00:31:21 2006 UTC vs.
Revision 1.340 by root, Sat Apr 26 08:05:38 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 but very lacking in others (higher level ipc)).
6 7
84.6 Sat Apr 26 10:05:14 CEST 2008
9 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
10 by the Coro module. It was a mistake to have it in the first place.
11 - (experimental) support for activestate perl 5.10 (method "w").
12 - (experimental) support for strawberry perl (method "a").
13 - coro_sigelem_set did not return a value although it had to,
14 actual impact unknown.
15
164.51 Mon Apr 14 13:28:27 CEST 2008
17 - make it compile again on 5.8.
18
194.50 Thu Apr 10 09:43:17 CEST 2008
20 - I did it twice! (see 4.49).
21
224.49 Sun Apr 6 21:23:31 CEST 2008
23 - grr, instead of compiling the recent changes on 5.10 only they
24 were compiled on 5.8 only.
25
264.48 Sun Apr 6 20:36:46 CEST 2008
27 - allow coroutine switches during eval's under 5.10.x, as it seems
28 the parser is a per-interpreter option now, so this is safe
29 (this might fix the odd crashing bug).
30 - drop support for 5.9.x versions: they are dead, jim.
31
324.47 Sun Apr 6 00:37:52 CEST 2008
33 - force cctx allocation on API calls: we know we need to force one
34 and gcc actually manages to confuse our heuristic nowadays,
35 leading to crashes and worse.
36 - document force_cctx.
37
384.46 Fri Apr 4 22:05:43 CEST 2008
39 - upgrade libcoro, resulting in pthread-backend (which was only created
40 to fulfill the rules of the programming languages shootout).
41
424.45 Thu Mar 13 11:55:36 CET 2008
43 - fix a file leaking bug in eg/mhyttpd that would allow
44 downloading of any file (reported by oesi).
45 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
46 (also add testcase).
47 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
48 apparently having loads of fun with that).
49 - implement $state->swap_defsv, ->swap_defav and document ->throw.
50
514.4 Wed Feb 13 16:44:29 CET 2008
52 - only assume .cfi pseudo isns exist on GNU/Linux.
53 - add get_timed method to Coro::Channels.
54 - fixed Coro::Debug manpage.
55 - perl 5.11 compatbility improvement based on patch by
56 Andreas König.
57
584.37 Sun Jan 20 11:25:23 CET 2008
59 - soften the check for an active parser for perl 5.10 (avoiding
60 "Coro::State::transfer called while parsing" in many cases).
61
624.36 Sun Jan 13 10:53:56 CET 2008
63 - reset diehook when terminating from an async_pool as to not
64 trigger any __DIE__ handlers.
65
664.35 Sun Jan 13 04:14:13 CET 2008
67 - "bt" debug command now displays any exceptions
68 from longmess and also skips the innermost
69 stackframes, giving more useufl output.
70 - allow backtraces in coroutines blocked in Coro::EV,
71 at a <1% speed hit.
72 - handle localising of $SIG{__WARN__} and __DIE__
73 properly (with a proper amount of dirty hacking).
74
754.34 Sat Dec 22 17:49:53 CET 2007
76 - upgrade to EV version 2.0 API.
77
784.33 Mon Dec 17 08:36:12 CET 2007
79 - make Coro::AIO etc. loadable in the absence of EV.
80
814.32 Mon Dec 17 07:46:02 CET 2007
82 - majorly improved Coro::Handle's performance with Coro::EV.
83 - implemented the until now mythical Coro::BDB module.
84 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
85
864.31 Wed Dec 5 12:32:39 CET 2007
87 - remove warn statement form Coro::Util.
88
894.3 Tue Dec 4 20:33:14 CET 2007
90 - calls to the idle function could cause stack corruption
91 when the stack changed.
92 - do no longer rely on the presence of EV::DNS if EV is used
93 (because it is gone), but instead take avdantage of EV::ADNS
94 if available.
95 - add ($) prototypes to all functions in Coro::Storable.
96 - use a conventional (safer) idle callback in Coro::EV.
97 - do accept quickly in Coro::Debug to avoid endless loops.
98
994.22 Fri Nov 30 16:04:04 CET 2007
100 - really use optimised versions for Event and EV in Coro::Util
101 and Coro::Handle.
102
1034.21 Sun Nov 25 10:48:59 CET 2007
104 - fix a spurious memory read.
105 - Coro::EV no longer keeps the eventloop "alive".
106
1074.2 Fri Nov 9 20:47:05 CET 2007
108 - enable/disable tracing from a new coroutine, not a pooled one.
109 - fix a memleak in Coro::Event.
110 - removed killall call from fork_eval.
111 - made sure store_fd is already loaded so that fork_eval
112 does not have to parse autoload in each subprocess.
113 - only use assembly method if -O switch is in $Config{optimize}.
114 - add (optional) Coro::EV module, so far the best event loop module
115 directly supported by Coro.
116 - if the event model is EV, use EV::DNS to resolve
117 stuff in Coro::Util.
118 - don't get confused by multiple event notifications in Coro::Handle.
119 - initial support for EV (libevent interface).
120 - require Event and EV using configure_requires, to force their existance.
121
1224.13 Wed Oct 24 07:26:45 CEST 2007
123 - add Coro::Storable::blocking_thaw.
124 - use a vastly more complicated technique to localise
125 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
126 - use a coroutine for the idle callback Coro::Event,
127 instead of running Event in the current coroutine context.
128 This also catches recursive invocations.
129 - actually report fork errors in gethostbyname and inet_aton.
130
1314.11 Thu Oct 11 02:40:24 CEST 2007
132 - port to threaded perls.
133
1344.1 Thu Oct 11 02:38:16 CEST 2007
135 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
136 be local to each coro (see Coro::State).
137 - incompatible change: for very deep reasons, cede and cede_notself
138 cannot return anything, so nothing will be returned.
139 - possibly bring back 5.10 compatibility (untested).
140 - work around stupid (and wrong) warning on 5.10 :(.
141 - overlay the saved state over the context stack. This saves
142 a few hundred bytes per coroutine on average and also
143 speeds up context switching a bit.
144 - further tune default stack sizes.
145 - (more) correctly calculate stack usage in coro_rss.
146 - Coro::Storable::blocking_* did not properly lock
147 resulting in races between coroutines.
148 - added Coro::Storable::guard.
149 - stopping to trace a coroutine could destroy the cctx of
150 an unrelated coroutine.
151 - explain the relationship between Perl and C coroutines in
152 more detail in Coro::State.
153 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
154 causing a fork per resolve. This also affected Coro::Socket.
155 - switch to a separate stack in $coro->call/eval to avoid
156 invalidating pointers.
157
1584.03 Sat Oct 6 21:24:00 CEST 2007
159 - added Coro::throw method.
160 - minor code cleanups.
161
1624.02 Sat Oct 6 02:36:47 CEST 2007
163 - fix a very minor per-coroutine memleak (a single codereference).
164 - fixed a bug where the currently in-use c context would be freed
165 prematurely (can happen only when programs change the stacksize
166 or use tracing).
167 - tracing can no longer keep a coro alive after it terminated.
168 - do static branch prediction in the common path for gcc. gives
169 about 2-5% speed improvement here.
170
1714.01 Fri Oct 5 22:10:49 CEST 2007
172 - instead of recreating *a* standard output handle we simply
173 use STDOUT, which is faster and hopefully more robust.
174
1754.0 Fri Oct 5 12:56:00 CEST 2007
176 - incompatibly changed Coro::Storable::freeze.
177 - major new feature: added Coro::Debug, for interactive coroutine
178 debugging, tracing and much more.
179 - major bug fix: unbelievable, but true: $_, $/ and many other
180 "saved" variables actually weren't being saved. This has been fixed,
181 of course, while increasing performance while losing all the save
182 flags.
183 - save flags are gone, and all the api functions dealing with them.
184 - added Coro::Semaphore::adjust.
185 - added Coro::Util::fork_eval.
186 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
187 - added Coro::killall.
188 - reduce initial stack sizes to allow for "micro-coroutines".
189 - better async_pool resource management, moved parts of async_pool
190 handling to XS (major speed improvement).
191 - actually croak before modifying important data structures.
192 - refuse to transfer while compiling.
193 - possibly support eval EXPR better now.
194 - enable assembly per default on linux+bsd x86+amd64.
195 - all internal members were renamed _something for easier subclassing.
196 - many minor tweaks.
197
1983.63 Wed May 16 14:10:06 CEST 2007
199 - implement handcoded assembly for x86/amd64 SVR ABI.
200
2013.62 Fri Apr 27 21:36:06 CEST 2007
202 - upgrade libcoro (which might set unwind info correctly).
203 - change default on linux to setjmp/longjmp.
204
2053.61 Thu Apr 19 12:36:18 CEST 2007
206 - Coro::Storable caused an endless loop when thawing invalid
207 pst's sometimes.
208 - use a Semaphore in Coro::Storable, as Storable doesn't
209 seem to be reentrant (although it is documented to
210 be threadsafe...).
211 - fix Coro::Signal to bring back the original unreliable
212 but stateful semantics.
213 - fixed a lot of typos in Coro.pm (patch submitted by David
214 Steinbrunner, which applied flawlessly).
215
2163.6 Sat Apr 14 17:13:31 CEST 2007
217 - added some bugfixes to get eg/myhttpd working again.
218 - added Coro::Storable for often-cede'ing freeze/thaw.
219 - try to do a clean exit when a coroutine calls exit
220 (EXPERIMENTAL).
221 - got rid of indirect call through _coro_init.
222 - updated the partly antique examples in eg/ to
223 work again and be a bit less magic, too.
224 - fixed Coro::Signal semantics to work as documented again.
225
2263.55 Sun Mar 25 01:20:47 CET 2007
227 - add SAVE_DEFFH to save the default filehandle and enable
228 it by default.
229 - finally move socket-operations from Coro::Socket to Coro::Handle
230 to be able to unblock foreign sockets.
231 - add Coro::State::save_also and guarded_save.
232 - add count accessor to Coro::Semaphore.
233 - add Coro::State::cctx_stacksize.
234 - just for the fun of it, do not rely on implicit context,
235 which can dramatically improve performance, but people
236 using windows-process-emulation perls do not care much about
237 performance.
238
2393.51 Sun Mar 4 14:18:04 CET 2007
240 - fixed a problem when you weakened references to Coro::State's
241 (patch by Yuval Kogman).
242
2433.501 Wed Feb 28 12:44:07 CET 2007
244 - rename some global symbols as macosx from hell redefines
245 them without asking.
246
2473.5 Tue Feb 13 20:22:53 CET 2007
248 - do AnyEvent model detection earlier, avoiding problems
249 caused by first using AnyEvent and later Coro::Event.
250 - implement and document Coro::Event event objects.
251 - fix a potential problem in Coro::Event causing crashes.
252 - initialise PL_comppad when creating a new coroutine,
253 avoids crashes on early coro destruction.
254
2553.41 Mon Jan 22 19:19:49 CET 2007
256 - readline on Coro::Handle did not support undefined $/,
257 nor did it deliver partial lines on EOF or error.
258 - implement malloc fallback for stack allocation because
259 stupid broken idiotic OSX has a stupid broken
260 idiotic fits-the-whole-os mmap "implementation" and
261 my dick feels longer if Coro is portable even to
262 obsolete platforms.
263
2643.4 Fri Jan 19 21:52:54 CET 2007
265 - remove t/09_timer.t, as it isn't really testing much
266 but was rather flaky in practise.
267 - async_pool coro would keep arguments and callback alive until
268 it was reused.
269 - cancellation of a coroutine could cause spurious idle calls
270 in cede_notself.
271
2723.3 Sat Jan 6 03:45:00 CET 2007
273 - implement $coro->on_destroy.
274 - Coro::Event blocking semantics have been changed,
275 documented and - hopefully - improved.
276 - fix nice adding, not subtracting, from priority.
277 - fix ->prio and api_is_ready (patch by Mark Hinds).
278 - fixed an assert ("... == prev__cctx->idle_te")
279 that could errronously trigger.
280 - fix various large and small memleaks.
281 - use a (hopefully) more stable cancel implementation
282 that immediately frees the coroutine data.
283 - cede/cede_notself return a status now.
284 - added Coro::guard function.
285 - added a global coroutine pool for jobs (on my machine,
286 I can create and execute 48k simple coros/s with async,
287 and 128k coros with async_pool).
288 - Coro::AIO now uses the coroutine priority as io priority.
289
2903.2 Fri Dec 22 05:07:09 CET 2006
291 - improve portability to slightly older perls.
292 - use cleaner coroutine destruction.
293 - simplify configuration for users.
294 - optionally (unrecommended) prefer perl functions over
295 their coro replacements.
296
2973.11 Tue Dec 5 13:11:24 CET 2006
298 - fixed some bogus assert's, but as perl.h disables assert even
299 without NDEBUG (thank you very much), not too many people should
300 notice (that did include myself). Andreas König noticed, though :)
301 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
302 it. Also noticed by Andreas König :)
303 - save/restore tainted status.
304 - verified to pass the testsuite on my 5.9.5.
305
3063.1 Mon Dec 4 23:03:40 CET 2006
307 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
308 - incompatible change: transfer flags are now per-state.
309 - give a better error message on deadlock.
310 - document Coro::nready.
311 - enhanced testsuite.
312
3133.01 Sun Dec 3 23:47:42 CET 2006
314 - forgot to include Coro::Timer.
315
3163.0 Sun Dec 3 22:57:25 CET 2006
317 - the "FINALLY COMPLETELY STABLE" release (coming soon:
318 the "FAMOUS LAST WORDS" release).
319 - implement a new stack sharing algorithm, which uses a stack
320 pool (size currently hardcoded).
321 - make stack sharing mandatory (it no longer uses a heuristic).
322 - eval/die no longer cause weird problems under heavy use.
7 - Coro::Event could cause livelocks if it was used but 323 - Coro::Event could cause livelocks if it was used but
8 Event watchers were used directly. 324 no Coro::Event watchers were used.
325 - Coro::Event now uses asynccheck as prepare does not
326 check for changed watchers.
327 - Coro::Event allows multiple waiting coros and will wake up one
328 per event.
9 - Coro::Event should be cleaner and more efficient now. 329 - Coro::Event should be cleaner and more efficient now.
10 - minor documentation cleanup. 330 - new utility function Coro::unblock_sub.
331 - document the sad fact that Event is no longer reentrant.
332 - putting a coroutine into the ready queue twice could under
333 some circumstances lead to stack corruption.
334 - minor incompatibility: subclassing Coro::State is supported
335 directly now without going through a _coro_state member.
336 - state/coro switching is much faster now.
11 - very minor optimisations and cleanups. 337 - very minor optimisations and code/documentation cleanup.
12 - avoid problems due to compiler inlining. 338 - avoid problems due to compiler inlining.
339 - removed timers from Coro::Timer -> use AnyEvent instead.
340 - replaced Coro::idle coroutine by (cleaner) idle handler.
341 - updated to newest libcoro.
342 - implement enhanced support for valgrind.
343 - implement is_ready and return value for ready.
344 - removed Coro::Cont, it was a misnomer (it's generators),
345 and it was somewhat annoying to get it right. Will come back
346 if somebody asks for it :)
347 - many ->wait methods and Coro::Event could return
348 spuriously without the event having happened.
13 349
142.5 Tue Nov 7 12:22:33 CET 2006 3502.5 Tue Nov 7 12:22:33 CET 2006
15 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket 351 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
16 use AnyEvent, moved them to Coro/. 352 use AnyEvent, moved them to Coro/.
17 - added Coro::LWP which contains all the uglyness required to 353 - added Coro::LWP which contains all the uglyness required to

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