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Comparing Coro/Changes (file contents):
Revision 1.166 by root, Fri Dec 1 13:36:07 2006 UTC vs.
Revision 1.330 by root, Sat Apr 5 22:38:26 2008 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
33.0 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
84.47 Sun Apr 6 00:37:52 CEST 2008
9 - force cctx allocation on API calls: we know we need to force one
10 and gcc actually manages to confuse our heuristic nowadays,
11 leading to crashes and worse.
12 - document force_cctx.
13
144.46 Fri Apr 4 22:05:43 CEST 2008
15 - upgrade libcoro, resulting in pthread-backend (which was only created
16 to fulfill the rules of the programming languages shootout).
17
184.45 Thu Mar 13 11:55:36 CET 2008
19 - fix a file leaking bug in eg/mhyttpd that would allow
20 downloading of any file (reported by oesi).
21 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
22 (also add testcase).
23 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
24 apparently having loads of fun with that).
25 - implement $state->swap_defsv, ->swap_defav and document ->throw.
26
274.4 Wed Feb 13 16:44:29 CET 2008
28 - only assume .cfi pseudo isns exist on GNU/Linux.
29 - add get_timed method to Coro::Channels.
30 - fixed Coro::Debug manpage.
31 - perl 5.11 compatbility improvement based on patch by
32 Andreas König.
33
344.37 Sun Jan 20 11:25:23 CET 2008
35 - soften the check for an active parser for perl 5.10 (avoiding
36 "Coro::State::transfer called while parsing" in many cases).
37
384.36 Sun Jan 13 10:53:56 CET 2008
39 - reset diehook when terminating from an async_pool as to not
40 trigger any __DIE__ handlers.
41
424.35 Sun Jan 13 04:14:13 CET 2008
43 - "bt" debug command now displays any exceptions
44 from longmess and also skips the innermost
45 stackframes, giving more useufl output.
46 - allow backtraces in coroutines blocked in Coro::EV,
47 at a <1% speed hit.
48 - handle localising of $SIG{__WARN__} and __DIE__
49 properly (with a proper amount of dirty hacking).
50
514.34 Sat Dec 22 17:49:53 CET 2007
52 - upgrade to EV version 2.0 API.
53
544.33 Mon Dec 17 08:36:12 CET 2007
55 - make Coro::AIO etc. loadable in the absence of EV.
56
574.32 Mon Dec 17 07:46:02 CET 2007
58 - majorly improved Coro::Handle's performance with Coro::EV.
59 - implemented the until now mythical Coro::BDB module.
60 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
61
624.31 Wed Dec 5 12:32:39 CET 2007
63 - remove warn statement form Coro::Util.
64
654.3 Tue Dec 4 20:33:14 CET 2007
66 - calls to the idle function could cause stack corruption
67 when the stack changed.
68 - do no longer rely on the presence of EV::DNS if EV is used
69 (because it is gone), but instead take avdantage of EV::ADNS
70 if available.
71 - add ($) prototypes to all functions in Coro::Storable.
72 - use a conventional (safer) idle callback in Coro::EV.
73 - do accept quickly in Coro::Debug to avoid endless loops.
74
754.22 Fri Nov 30 16:04:04 CET 2007
76 - really use optimised versions for Event and EV in Coro::Util
77 and Coro::Handle.
78
794.21 Sun Nov 25 10:48:59 CET 2007
80 - fix a spurious memory read.
81 - Coro::EV no longer keeps the eventloop "alive".
82
834.2 Fri Nov 9 20:47:05 CET 2007
84 - enable/disable tracing from a new coroutine, not a pooled one.
85 - fix a memleak in Coro::Event.
86 - removed killall call from fork_eval.
87 - made sure store_fd is already loaded so that fork_eval
88 does not have to parse autoload in each subprocess.
89 - only use assembly method if -O switch is in $Config{optimize}.
90 - add (optional) Coro::EV module, so far the best event loop module
91 directly supported by Coro.
92 - if the event model is EV, use EV::DNS to resolve
93 stuff in Coro::Util.
94 - don't get confused by multiple event notifications in Coro::Handle.
95 - initial support for EV (libevent interface).
96 - require Event and EV using configure_requires, to force their existance.
97
984.13 Wed Oct 24 07:26:45 CEST 2007
99 - add Coro::Storable::blocking_thaw.
100 - use a vastly more complicated technique to localise
101 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
102 - use a coroutine for the idle callback Coro::Event,
103 instead of running Event in the current coroutine context.
104 This also catches recursive invocations.
105 - actually report fork errors in gethostbyname and inet_aton.
106
1074.11 Thu Oct 11 02:40:24 CEST 2007
108 - port to threaded perls.
109
1104.1 Thu Oct 11 02:38:16 CEST 2007
111 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
112 be local to each coro (see Coro::State).
113 - incompatible change: for very deep reasons, cede and cede_notself
114 cannot return anything, so nothing will be returned.
115 - possibly bring back 5.10 compatibility (untested).
116 - work around stupid (and wrong) warning on 5.10 :(.
117 - overlay the saved state over the context stack. This saves
118 a few hundred bytes per coroutine on average and also
119 speeds up context switching a bit.
120 - further tune default stack sizes.
121 - (more) correctly calculate stack usage in coro_rss.
122 - Coro::Storable::blocking_* did not properly lock
123 resulting in races between coroutines.
124 - added Coro::Storable::guard.
125 - stopping to trace a coroutine could destroy the cctx of
126 an unrelated coroutine.
127 - explain the relationship between Perl and C coroutines in
128 more detail in Coro::State.
129 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
130 causing a fork per resolve. This also affected Coro::Socket.
131 - switch to a separate stack in $coro->call/eval to avoid
132 invalidating pointers.
133
1344.03 Sat Oct 6 21:24:00 CEST 2007
135 - added Coro::throw method.
136 - minor code cleanups.
137
1384.02 Sat Oct 6 02:36:47 CEST 2007
139 - fix a very minor per-coroutine memleak (a single codereference).
140 - fixed a bug where the currently in-use c context would be freed
141 prematurely (can happen only when programs change the stacksize
142 or use tracing).
143 - tracing can no longer keep a coro alive after it terminated.
144 - do static branch prediction in the common path for gcc. gives
145 about 2-5% speed improvement here.
146
1474.01 Fri Oct 5 22:10:49 CEST 2007
148 - instead of recreating *a* standard output handle we simply
149 use STDOUT, which is faster and hopefully more robust.
150
1514.0 Fri Oct 5 12:56:00 CEST 2007
152 - incompatibly changed Coro::Storable::freeze.
153 - major new feature: added Coro::Debug, for interactive coroutine
154 debugging, tracing and much more.
155 - major bug fix: unbelievable, but true: $_, $/ and many other
156 "saved" variables actually weren't being saved. This has been fixed,
157 of course, while increasing performance while losing all the save
158 flags.
159 - save flags are gone, and all the api functions dealing with them.
160 - added Coro::Semaphore::adjust.
161 - added Coro::Util::fork_eval.
162 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
163 - added Coro::killall.
164 - reduce initial stack sizes to allow for "micro-coroutines".
165 - better async_pool resource management, moved parts of async_pool
166 handling to XS (major speed improvement).
167 - actually croak before modifying important data structures.
168 - refuse to transfer while compiling.
169 - possibly support eval EXPR better now.
170 - enable assembly per default on linux+bsd x86+amd64.
171 - all internal members were renamed _something for easier subclassing.
172 - many minor tweaks.
173
1743.63 Wed May 16 14:10:06 CEST 2007
175 - implement handcoded assembly for x86/amd64 SVR ABI.
176
1773.62 Fri Apr 27 21:36:06 CEST 2007
178 - upgrade libcoro (which might set unwind info correctly).
179 - change default on linux to setjmp/longjmp.
180
1813.61 Thu Apr 19 12:36:18 CEST 2007
182 - Coro::Storable caused an endless loop when thawing invalid
183 pst's sometimes.
184 - use a Semaphore in Coro::Storable, as Storable doesn't
185 seem to be reentrant (although it is documented to
186 be threadsafe...).
187 - fix Coro::Signal to bring back the original unreliable
188 but stateful semantics.
189 - fixed a lot of typos in Coro.pm (patch submitted by David
190 Steinbrunner, which applied flawlessly).
191
1923.6 Sat Apr 14 17:13:31 CEST 2007
193 - added some bugfixes to get eg/myhttpd working again.
194 - added Coro::Storable for often-cede'ing freeze/thaw.
195 - try to do a clean exit when a coroutine calls exit
196 (EXPERIMENTAL).
197 - got rid of indirect call through _coro_init.
198 - updated the partly antique examples in eg/ to
199 work again and be a bit less magic, too.
200 - fixed Coro::Signal semantics to work as documented again.
201
2023.55 Sun Mar 25 01:20:47 CET 2007
203 - add SAVE_DEFFH to save the default filehandle and enable
204 it by default.
205 - finally move socket-operations from Coro::Socket to Coro::Handle
206 to be able to unblock foreign sockets.
207 - add Coro::State::save_also and guarded_save.
208 - add count accessor to Coro::Semaphore.
209 - add Coro::State::cctx_stacksize.
210 - just for the fun of it, do not rely on implicit context,
211 which can dramatically improve performance, but people
212 using windows-process-emulation perls do not care much about
213 performance.
214
2153.51 Sun Mar 4 14:18:04 CET 2007
216 - fixed a problem when you weakened references to Coro::State's
217 (patch by Yuval Kogman).
218
2193.501 Wed Feb 28 12:44:07 CET 2007
220 - rename some global symbols as macosx from hell redefines
221 them without asking.
222
2233.5 Tue Feb 13 20:22:53 CET 2007
224 - do AnyEvent model detection earlier, avoiding problems
225 caused by first using AnyEvent and later Coro::Event.
226 - implement and document Coro::Event event objects.
227 - fix a potential problem in Coro::Event causing crashes.
228 - initialise PL_comppad when creating a new coroutine,
229 avoids crashes on early coro destruction.
230
2313.41 Mon Jan 22 19:19:49 CET 2007
232 - readline on Coro::Handle did not support undefined $/,
233 nor did it deliver partial lines on EOF or error.
234 - implement malloc fallback for stack allocation because
235 stupid broken idiotic OSX has a stupid broken
236 idiotic fits-the-whole-os mmap "implementation" and
237 my dick feels longer if Coro is portable even to
238 obsolete platforms.
239
2403.4 Fri Jan 19 21:52:54 CET 2007
241 - remove t/09_timer.t, as it isn't really testing much
242 but was rather flaky in practise.
243 - async_pool coro would keep arguments and callback alive until
244 it was reused.
245 - cancellation of a coroutine could cause spurious idle calls
246 in cede_notself.
247
2483.3 Sat Jan 6 03:45:00 CET 2007
249 - implement $coro->on_destroy.
250 - Coro::Event blocking semantics have been changed,
251 documented and - hopefully - improved.
252 - fix nice adding, not subtracting, from priority.
253 - fix ->prio and api_is_ready (patch by Mark Hinds).
254 - fixed an assert ("... == prev__cctx->idle_te")
255 that could errronously trigger.
256 - fix various large and small memleaks.
257 - use a (hopefully) more stable cancel implementation
258 that immediately frees the coroutine data.
259 - cede/cede_notself return a status now.
260 - added Coro::guard function.
261 - added a global coroutine pool for jobs (on my machine,
262 I can create and execute 48k simple coros/s with async,
263 and 128k coros with async_pool).
264 - Coro::AIO now uses the coroutine priority as io priority.
265
2663.2 Fri Dec 22 05:07:09 CET 2006
267 - improve portability to slightly older perls.
268 - use cleaner coroutine destruction.
269 - simplify configuration for users.
270 - optionally (unrecommended) prefer perl functions over
271 their coro replacements.
272
2733.11 Tue Dec 5 13:11:24 CET 2006
274 - fixed some bogus assert's, but as perl.h disables assert even
275 without NDEBUG (thank you very much), not too many people should
276 notice (that did include myself). Andreas König noticed, though :)
277 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
278 it. Also noticed by Andreas König :)
279 - save/restore tainted status.
280 - verified to pass the testsuite on my 5.9.5.
281
2823.1 Mon Dec 4 23:03:40 CET 2006
283 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
284 - incompatible change: transfer flags are now per-state.
285 - give a better error message on deadlock.
286 - document Coro::nready.
287 - enhanced testsuite.
288
2893.01 Sun Dec 3 23:47:42 CET 2006
290 - forgot to include Coro::Timer.
291
2923.0 Sun Dec 3 22:57:25 CET 2006
4 - the "FINALLY COMPLETELY STABLE" release (coming soon: 293 - the "FINALLY COMPLETELY STABLE" release (coming soon:
5 the "FAMOUS LAST WORDS" release). 294 the "FAMOUS LAST WORDS" release).
6 - implement a new stack sharing algorithm, which uses a stack 295 - implement a new stack sharing algorithm, which uses a stack
7 pool (size currently hardcoded). 296 pool (size currently hardcoded).
8 - make stack sharing mandatory (it no longer uses a heuristic). 297 - make stack sharing mandatory (it no longer uses a heuristic).
9 - eval/die no longer cause weird problems under heavy use. 298 - eval/die no longer cause weird problems under heavy use.
10 - Coro::Event could cause livelocks if it was used but 299 - Coro::Event could cause livelocks if it was used but
11 no Coro::Event watchers were used. 300 no Coro::Event watchers were used.
301 - Coro::Event now uses asynccheck as prepare does not
302 check for changed watchers.
303 - Coro::Event allows multiple waiting coros and will wake up one
304 per event.
12 - Coro::Event should be cleaner and more efficient now. 305 - Coro::Event should be cleaner and more efficient now.
13 - new utility function Coro::unblock_sub. 306 - new utility function Coro::unblock_sub.
14 - document the sad fact that Event is no longer reentrant. 307 - document the sad fact that Event is no longer reentrant.
15 - putting a coroutine into the ready queue twice could under 308 - putting a coroutine into the ready queue twice could under
16 some circumstances lead to stack corruption. 309 some circumstances lead to stack corruption.
… …
22 - removed timers from Coro::Timer -> use AnyEvent instead. 315 - removed timers from Coro::Timer -> use AnyEvent instead.
23 - replaced Coro::idle coroutine by (cleaner) idle handler. 316 - replaced Coro::idle coroutine by (cleaner) idle handler.
24 - updated to newest libcoro. 317 - updated to newest libcoro.
25 - implement enhanced support for valgrind. 318 - implement enhanced support for valgrind.
26 - implement is_ready and return value for ready. 319 - implement is_ready and return value for ready.
320 - removed Coro::Cont, it was a misnomer (it's generators),
321 and it was somewhat annoying to get it right. Will come back
322 if somebody asks for it :)
27 - many ->wait methods and Coro::Event could return 323 - many ->wait methods and Coro::Event could return
28 spuriously without the event having happened. 324 spuriously without the event having happened.
29 325
302.5 Tue Nov 7 12:22:33 CET 2006 3262.5 Tue Nov 7 12:22:33 CET 2006
31 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket 327 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket

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