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Comparing Coro/Changes (file contents):
Revision 1.148 by root, Mon Nov 20 20:29:33 2006 UTC vs.
Revision 1.338 by root, Thu Apr 24 12:40:38 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
7 - avoid deadlock in Coro::Event's idle process when it is called 8 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
8 early with no active watchers. 9 by the Coro module. It was a mistake.
9 - minor documentation cleanup. 10 - (experimental) support for activestate perl 5.10.
11 - coro_sigelem_set did not return a value although it had to,
12 actual impact unknown.
13
144.51 Mon Apr 14 13:28:27 CEST 2008
15 - make it compile again on 5.8.
16
174.50 Thu Apr 10 09:43:17 CEST 2008
18 - I did it twice! (see 4.49).
19
204.49 Sun Apr 6 21:23:31 CEST 2008
21 - grr, instead of compiling the recent changes on 5.10 only they
22 were compiled on 5.8 only.
23
244.48 Sun Apr 6 20:36:46 CEST 2008
25 - allow coroutine switches during eval's under 5.10.x, as it seems
26 the parser is a per-interpreter option now, so this is safe
27 (this might fix the odd crashing bug).
28 - drop support for 5.9.x versions: they are dead, jim.
29
304.47 Sun Apr 6 00:37:52 CEST 2008
31 - force cctx allocation on API calls: we know we need to force one
32 and gcc actually manages to confuse our heuristic nowadays,
33 leading to crashes and worse.
34 - document force_cctx.
35
364.46 Fri Apr 4 22:05:43 CEST 2008
37 - upgrade libcoro, resulting in pthread-backend (which was only created
38 to fulfill the rules of the programming languages shootout).
39
404.45 Thu Mar 13 11:55:36 CET 2008
41 - fix a file leaking bug in eg/mhyttpd that would allow
42 downloading of any file (reported by oesi).
43 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
44 (also add testcase).
45 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
46 apparently having loads of fun with that).
47 - implement $state->swap_defsv, ->swap_defav and document ->throw.
48
494.4 Wed Feb 13 16:44:29 CET 2008
50 - only assume .cfi pseudo isns exist on GNU/Linux.
51 - add get_timed method to Coro::Channels.
52 - fixed Coro::Debug manpage.
53 - perl 5.11 compatbility improvement based on patch by
54 Andreas König.
55
564.37 Sun Jan 20 11:25:23 CET 2008
57 - soften the check for an active parser for perl 5.10 (avoiding
58 "Coro::State::transfer called while parsing" in many cases).
59
604.36 Sun Jan 13 10:53:56 CET 2008
61 - reset diehook when terminating from an async_pool as to not
62 trigger any __DIE__ handlers.
63
644.35 Sun Jan 13 04:14:13 CET 2008
65 - "bt" debug command now displays any exceptions
66 from longmess and also skips the innermost
67 stackframes, giving more useufl output.
68 - allow backtraces in coroutines blocked in Coro::EV,
69 at a <1% speed hit.
70 - handle localising of $SIG{__WARN__} and __DIE__
71 properly (with a proper amount of dirty hacking).
72
734.34 Sat Dec 22 17:49:53 CET 2007
74 - upgrade to EV version 2.0 API.
75
764.33 Mon Dec 17 08:36:12 CET 2007
77 - make Coro::AIO etc. loadable in the absence of EV.
78
794.32 Mon Dec 17 07:46:02 CET 2007
80 - majorly improved Coro::Handle's performance with Coro::EV.
81 - implemented the until now mythical Coro::BDB module.
82 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
83
844.31 Wed Dec 5 12:32:39 CET 2007
85 - remove warn statement form Coro::Util.
86
874.3 Tue Dec 4 20:33:14 CET 2007
88 - calls to the idle function could cause stack corruption
89 when the stack changed.
90 - do no longer rely on the presence of EV::DNS if EV is used
91 (because it is gone), but instead take avdantage of EV::ADNS
92 if available.
93 - add ($) prototypes to all functions in Coro::Storable.
94 - use a conventional (safer) idle callback in Coro::EV.
95 - do accept quickly in Coro::Debug to avoid endless loops.
96
974.22 Fri Nov 30 16:04:04 CET 2007
98 - really use optimised versions for Event and EV in Coro::Util
99 and Coro::Handle.
100
1014.21 Sun Nov 25 10:48:59 CET 2007
102 - fix a spurious memory read.
103 - Coro::EV no longer keeps the eventloop "alive".
104
1054.2 Fri Nov 9 20:47:05 CET 2007
106 - enable/disable tracing from a new coroutine, not a pooled one.
107 - fix a memleak in Coro::Event.
108 - removed killall call from fork_eval.
109 - made sure store_fd is already loaded so that fork_eval
110 does not have to parse autoload in each subprocess.
111 - only use assembly method if -O switch is in $Config{optimize}.
112 - add (optional) Coro::EV module, so far the best event loop module
113 directly supported by Coro.
114 - if the event model is EV, use EV::DNS to resolve
115 stuff in Coro::Util.
116 - don't get confused by multiple event notifications in Coro::Handle.
117 - initial support for EV (libevent interface).
118 - require Event and EV using configure_requires, to force their existance.
119
1204.13 Wed Oct 24 07:26:45 CEST 2007
121 - add Coro::Storable::blocking_thaw.
122 - use a vastly more complicated technique to localise
123 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
124 - use a coroutine for the idle callback Coro::Event,
125 instead of running Event in the current coroutine context.
126 This also catches recursive invocations.
127 - actually report fork errors in gethostbyname and inet_aton.
128
1294.11 Thu Oct 11 02:40:24 CEST 2007
130 - port to threaded perls.
131
1324.1 Thu Oct 11 02:38:16 CEST 2007
133 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
134 be local to each coro (see Coro::State).
135 - incompatible change: for very deep reasons, cede and cede_notself
136 cannot return anything, so nothing will be returned.
137 - possibly bring back 5.10 compatibility (untested).
138 - work around stupid (and wrong) warning on 5.10 :(.
139 - overlay the saved state over the context stack. This saves
140 a few hundred bytes per coroutine on average and also
141 speeds up context switching a bit.
142 - further tune default stack sizes.
143 - (more) correctly calculate stack usage in coro_rss.
144 - Coro::Storable::blocking_* did not properly lock
145 resulting in races between coroutines.
146 - added Coro::Storable::guard.
147 - stopping to trace a coroutine could destroy the cctx of
148 an unrelated coroutine.
149 - explain the relationship between Perl and C coroutines in
150 more detail in Coro::State.
151 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
152 causing a fork per resolve. This also affected Coro::Socket.
153 - switch to a separate stack in $coro->call/eval to avoid
154 invalidating pointers.
155
1564.03 Sat Oct 6 21:24:00 CEST 2007
157 - added Coro::throw method.
158 - minor code cleanups.
159
1604.02 Sat Oct 6 02:36:47 CEST 2007
161 - fix a very minor per-coroutine memleak (a single codereference).
162 - fixed a bug where the currently in-use c context would be freed
163 prematurely (can happen only when programs change the stacksize
164 or use tracing).
165 - tracing can no longer keep a coro alive after it terminated.
166 - do static branch prediction in the common path for gcc. gives
167 about 2-5% speed improvement here.
168
1694.01 Fri Oct 5 22:10:49 CEST 2007
170 - instead of recreating *a* standard output handle we simply
171 use STDOUT, which is faster and hopefully more robust.
172
1734.0 Fri Oct 5 12:56:00 CEST 2007
174 - incompatibly changed Coro::Storable::freeze.
175 - major new feature: added Coro::Debug, for interactive coroutine
176 debugging, tracing and much more.
177 - major bug fix: unbelievable, but true: $_, $/ and many other
178 "saved" variables actually weren't being saved. This has been fixed,
179 of course, while increasing performance while losing all the save
180 flags.
181 - save flags are gone, and all the api functions dealing with them.
182 - added Coro::Semaphore::adjust.
183 - added Coro::Util::fork_eval.
184 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
185 - added Coro::killall.
186 - reduce initial stack sizes to allow for "micro-coroutines".
187 - better async_pool resource management, moved parts of async_pool
188 handling to XS (major speed improvement).
189 - actually croak before modifying important data structures.
190 - refuse to transfer while compiling.
191 - possibly support eval EXPR better now.
192 - enable assembly per default on linux+bsd x86+amd64.
193 - all internal members were renamed _something for easier subclassing.
194 - many minor tweaks.
195
1963.63 Wed May 16 14:10:06 CEST 2007
197 - implement handcoded assembly for x86/amd64 SVR ABI.
198
1993.62 Fri Apr 27 21:36:06 CEST 2007
200 - upgrade libcoro (which might set unwind info correctly).
201 - change default on linux to setjmp/longjmp.
202
2033.61 Thu Apr 19 12:36:18 CEST 2007
204 - Coro::Storable caused an endless loop when thawing invalid
205 pst's sometimes.
206 - use a Semaphore in Coro::Storable, as Storable doesn't
207 seem to be reentrant (although it is documented to
208 be threadsafe...).
209 - fix Coro::Signal to bring back the original unreliable
210 but stateful semantics.
211 - fixed a lot of typos in Coro.pm (patch submitted by David
212 Steinbrunner, which applied flawlessly).
213
2143.6 Sat Apr 14 17:13:31 CEST 2007
215 - added some bugfixes to get eg/myhttpd working again.
216 - added Coro::Storable for often-cede'ing freeze/thaw.
217 - try to do a clean exit when a coroutine calls exit
218 (EXPERIMENTAL).
219 - got rid of indirect call through _coro_init.
220 - updated the partly antique examples in eg/ to
221 work again and be a bit less magic, too.
222 - fixed Coro::Signal semantics to work as documented again.
223
2243.55 Sun Mar 25 01:20:47 CET 2007
225 - add SAVE_DEFFH to save the default filehandle and enable
226 it by default.
227 - finally move socket-operations from Coro::Socket to Coro::Handle
228 to be able to unblock foreign sockets.
229 - add Coro::State::save_also and guarded_save.
230 - add count accessor to Coro::Semaphore.
231 - add Coro::State::cctx_stacksize.
232 - just for the fun of it, do not rely on implicit context,
233 which can dramatically improve performance, but people
234 using windows-process-emulation perls do not care much about
235 performance.
236
2373.51 Sun Mar 4 14:18:04 CET 2007
238 - fixed a problem when you weakened references to Coro::State's
239 (patch by Yuval Kogman).
240
2413.501 Wed Feb 28 12:44:07 CET 2007
242 - rename some global symbols as macosx from hell redefines
243 them without asking.
244
2453.5 Tue Feb 13 20:22:53 CET 2007
246 - do AnyEvent model detection earlier, avoiding problems
247 caused by first using AnyEvent and later Coro::Event.
248 - implement and document Coro::Event event objects.
249 - fix a potential problem in Coro::Event causing crashes.
250 - initialise PL_comppad when creating a new coroutine,
251 avoids crashes on early coro destruction.
252
2533.41 Mon Jan 22 19:19:49 CET 2007
254 - readline on Coro::Handle did not support undefined $/,
255 nor did it deliver partial lines on EOF or error.
256 - implement malloc fallback for stack allocation because
257 stupid broken idiotic OSX has a stupid broken
258 idiotic fits-the-whole-os mmap "implementation" and
259 my dick feels longer if Coro is portable even to
260 obsolete platforms.
261
2623.4 Fri Jan 19 21:52:54 CET 2007
263 - remove t/09_timer.t, as it isn't really testing much
264 but was rather flaky in practise.
265 - async_pool coro would keep arguments and callback alive until
266 it was reused.
267 - cancellation of a coroutine could cause spurious idle calls
268 in cede_notself.
269
2703.3 Sat Jan 6 03:45:00 CET 2007
271 - implement $coro->on_destroy.
272 - Coro::Event blocking semantics have been changed,
273 documented and - hopefully - improved.
274 - fix nice adding, not subtracting, from priority.
275 - fix ->prio and api_is_ready (patch by Mark Hinds).
276 - fixed an assert ("... == prev__cctx->idle_te")
277 that could errronously trigger.
278 - fix various large and small memleaks.
279 - use a (hopefully) more stable cancel implementation
280 that immediately frees the coroutine data.
281 - cede/cede_notself return a status now.
282 - added Coro::guard function.
283 - added a global coroutine pool for jobs (on my machine,
284 I can create and execute 48k simple coros/s with async,
285 and 128k coros with async_pool).
286 - Coro::AIO now uses the coroutine priority as io priority.
287
2883.2 Fri Dec 22 05:07:09 CET 2006
289 - improve portability to slightly older perls.
290 - use cleaner coroutine destruction.
291 - simplify configuration for users.
292 - optionally (unrecommended) prefer perl functions over
293 their coro replacements.
294
2953.11 Tue Dec 5 13:11:24 CET 2006
296 - fixed some bogus assert's, but as perl.h disables assert even
297 without NDEBUG (thank you very much), not too many people should
298 notice (that did include myself). Andreas König noticed, though :)
299 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
300 it. Also noticed by Andreas König :)
301 - save/restore tainted status.
302 - verified to pass the testsuite on my 5.9.5.
303
3043.1 Mon Dec 4 23:03:40 CET 2006
305 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
306 - incompatible change: transfer flags are now per-state.
307 - give a better error message on deadlock.
308 - document Coro::nready.
309 - enhanced testsuite.
310
3113.01 Sun Dec 3 23:47:42 CET 2006
312 - forgot to include Coro::Timer.
313
3143.0 Sun Dec 3 22:57:25 CET 2006
315 - the "FINALLY COMPLETELY STABLE" release (coming soon:
316 the "FAMOUS LAST WORDS" release).
317 - implement a new stack sharing algorithm, which uses a stack
318 pool (size currently hardcoded).
319 - make stack sharing mandatory (it no longer uses a heuristic).
320 - eval/die no longer cause weird problems under heavy use.
321 - Coro::Event could cause livelocks if it was used but
322 no Coro::Event watchers were used.
323 - Coro::Event now uses asynccheck as prepare does not
324 check for changed watchers.
325 - Coro::Event allows multiple waiting coros and will wake up one
326 per event.
327 - Coro::Event should be cleaner and more efficient now.
328 - new utility function Coro::unblock_sub.
329 - document the sad fact that Event is no longer reentrant.
330 - putting a coroutine into the ready queue twice could under
331 some circumstances lead to stack corruption.
332 - minor incompatibility: subclassing Coro::State is supported
333 directly now without going through a _coro_state member.
334 - state/coro switching is much faster now.
335 - very minor optimisations and code/documentation cleanup.
336 - avoid problems due to compiler inlining.
337 - removed timers from Coro::Timer -> use AnyEvent instead.
338 - replaced Coro::idle coroutine by (cleaner) idle handler.
339 - updated to newest libcoro.
340 - implement enhanced support for valgrind.
341 - implement is_ready and return value for ready.
342 - removed Coro::Cont, it was a misnomer (it's generators),
343 and it was somewhat annoying to get it right. Will come back
344 if somebody asks for it :)
345 - many ->wait methods and Coro::Event could return
346 spuriously without the event having happened.
10 347
112.5 Tue Nov 7 12:22:33 CET 2006 3482.5 Tue Nov 7 12:22:33 CET 2006
12 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket 349 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
13 use AnyEvent, moved them to Coro/. 350 use AnyEvent, moved them to Coro/.
14 - added Coro::LWP which contains all the uglyness required to 351 - added Coro::LWP which contains all the uglyness required to

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