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Comparing Coro/Changes (file contents):
Revision 1.447 by root, Thu Nov 20 06:32:55 2008 UTC vs.
Revision 1.571 by root, Tue Jun 28 22:18:57 2011 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: should explore PerlIO::coroaio (perl leaks like hell). 3TODO: should explore PerlIO::coroaio (perl leaks like hell).
4TODO: maybe implement a default message channel, very much like Erlang's 4TODO: channel->maxsize(newsize)?
5 actor model (which is cool in a lot of important aspects (failures!), 5TODO: http://www.microsoft.com/msj/archive/s2ce.aspx
6 but very lacking in others (higher level ipc)).
7 6
8TODO: async_pool to SLF 7TODO: tutorial
9TODO: _cancel to xs 8TODO: in_eval, PL_tained
105.0 9 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
10 destroyed and cleaned up automatically (e.g. async { schedule }).
11 - implement a JIT compiler for part of the thread switch code,
12 which gives a 50% speed improvement on threaded perls, and
13 about 4% on non-thraeded perls (so threaded perls now finally
14 reach about half the speed of non-threaded perls).
15 - avoid DEFSV and ERRSV, giving another 10% improvement
16 in thread switching.
17 - Coro::State->is_destroyed is now called is_zombie.
18 - implement a Coro->safe_cancel method that might fail, but
19 cancels in a "safer" way if it succeeds.
20 - get rid of two hash-accesses when initialising a new Coro - this
21 speeds up coro creation by almost a factor of two.
22 - croak when a coro that is being cancelled tries to block
23 (e.g. while executing a guard block), instead of crashing or
24 deadlocking.
25 - use a more robust and also faster method to identify Coro::State
26 objects - speeds up everything a bit.
27 - implement Coro->cancel in XS for a 20% speed improvement, and to
28 be able to implement mutual cancellation.
29 - speed up context switches by a percent or two by more efficiently
30 allocating context stack entries.
31 - implement Coro->join and Coro->on_destroy in XS for a speedup and
32 a reduction in memory use.
33 - cancelling a coro while it itself is cancelling another coro is
34 now supported and working, instead of triggering an assertion.
35 - be a bit more crash-resistant when calling (buggy) on_destroy
36 callbacks (best effort).
37 - move on_destroy into the slf_frame, to allow extension slf
38 functions to have destructors.
39 - get rid if coro refcounting - simply crash in other interpreter
40 threads by nulling the pointers on clone.
41 - simplify warn/die hook handling when loading Coro - the convoluted
42 logic seems to be no longer neccessary.
43 - use libecb instead of our own home-grown gcc hacks.
44 - document alternatives to Coro::LWP. Please use them :)
45 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
46 sigaltstack.
47
485.372 Wed Feb 23 06:14:30 CET 2011
49 - apparently mingw doesn't provide a working gettimeofday, try to
50 work around that by relying on Time::HiRes (indirectly brought to
51 my attention by Max Maischein).
52 - fix some portability issues when Time::HiRes was used.
53
545.371 Mon Feb 21 14:36:08 CET 2011
55 - backport to windows process emulation code again.
56
575.37 Sat Feb 19 07:49:44 CET 2011
58 - add a big "Coro thread life cycle" section to "man Coro".
59 - try a tentative workaround against the breakage that 5.13 has
60 introduced without depreciation period. sigh.
61 - no longer use Time::HiRes if gettimeofday is available, which
62 saves quite a lot of memory.
63
645.36 Sun Feb 13 05:33:41 CET 2011
65 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
66 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
67 method call.
68 - undocument Coro::Timer::sleep and obsolete whole module.
69 - optimise Coro::Timer::timeout memory and cpu usage.
70 - slightly updated Coro::Intro for recent changes.
71 - do not initialise PL_dirty anymore.
72
735.25 Thu Nov 11 01:08:39 CET 2010
74 - try a different approach on netbsd - netbsd 5 finally has marginally
75 working pthreads, but still broken ucontext/sigaltstack.
76 - openbsd 4.8 finally got their act together, Coro works out of the box
77 with asm, setjmp and pthreads (no change, just informational).
78
795.24 Sat Oct 23 11:27:12 CEST 2010
80 - port to the EV 4.0 API.
81 - work around bugs in mingw32, making strawberry perl work
82 out of the box.
83 - correctly modify Coro::AIO function prototypes
84 so that they reflect the "no optional parameters" rule.
85 - "ported" libcoro to C++.
86
875.23 Mon May 17 18:50:42 CEST 2010
88 - be more resistant to ordering changes when initialising
89 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
90 Waldorf).
91 - document that perl 5.12 deliberately removed support for cloning.
92
935.22 Wed Apr 14 03:55:35 CEST 2010
94 - correctly return udnef on errors in Coro::Handle::read/write
95 (testcase by Marc Mims).
96 - convert Coro::Util into a "perl compatibility wrapper" - the functions
97 are less useful now, but are drop-in replacements for existing
98 functions, listing better alternatives in the documentation. This also
99 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
100 with Coro::Util::inet_aton.
101 - do not override $Coro::idle unconditionally in Coro.pm, as other
102 modules could have provided their own idle coro already
103 (for exmaple, Coro::AnyEvent).
104 - fix Coro::Util::gethost* functions.
105 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
106
1075.21 Wed Dec 16 07:19:51 CET 2009
108 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
109 together.
110 - add some examples on how to combine other event loops with Coro in
111 Coro::AnyEvent, and how to run it (and not to block). Seems to be
112 the most common source of confusion.
113 - try to catch people naively blocking in an event callback.
114 - work around the perl filehandle bug issue in conjunction with
115 older common::sense (as indirectly pointed out by ZSystem).
116 - clarify the "not from signal handlers" section.
117
1185.2 Sun Oct 4 14:54:24 CEST 2009
119 - Coro::Storable destroyed the prototypes of the functions it wrapped.
120 - export rouse_cb and rouse_wait by default now.
121 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
122 - new method $state->swap_sv.
123 - added section on "windows process emulation" to the manpage,
124 after a not-so-fruitful (nor-friendly) "discussion" with chip
125 salzenberg (discussion implies arguments, but his only arguments
126 were ad-hominems, one wonders why he started it in the first
127 place). I hope this explains it well enough for him to understand,
128 and maybe well enough for others to understand.
129 - use common::sense everywhere now.
130 - idle callbacks are no longer supported, use idle coros instead.
131 - print a thread listing when a deadlock is detected.
132
1335.17 Sat Aug 22 23:09:31 CEST 2009
134 - work around a bug in the perl debugger causing crashes
135 when running under the debugger by marking _pool_handler as nodebug.
136 - speed up Coro::async considerably.
137 - try some hacks to get netbsd to work "more often" - their broken
138 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
139 - convert Coro to AE 5.0 API.
140
1415.162 Tue Jul 28 04:04:03 CEST 2009
142 - perl 5.8.2 is now minimum requirement.
143 - skip t/19_handle.t on broken windows perls.
144
1455.161 Wed Jul 22 04:47:38 CEST 2009
146 - Coro::AnyEvent::poll could have a different prototype when EV was
147 used as backend (analyzed by Tatsuhiko Miyagawa).
148 - Coro::AnyEvent errornously initialised the event loop when loaded,
149 not on demand.
150 - try to workaround rare */t/01_unblock.t failures.
151
1525.16 Tue Jul 21 01:44:37 CEST 2009
153 - Coro::AnyEvent failed to hook into the event loop
154 when no threads had been readied between detecting
155 the event loop and actually running it.
156 - considerably speed up Coro::Select by taking avdantage
157 of AnyEvent > 4.8 and some other optimisations.
158 - implement paragraph readline mode in Coro::Handle
159 (based on patches by Zsbán Ambrus).
160 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
161 and analyzed by Yasuhiro MATSUMOTO).
162 - clarified libcoro license and copyright.
163 - someone stole my EXTRA_META!!!
164 - implement Coro::Select::patch_pp_sselect and it's brother,
165 for hardcode select overriding.
166
1675.151 Mon Jul 6 05:41:57 CEST 2009
168 - backport to windows process emulation code again (patch by
169 Yasuhiro MATSUMOTO).
170 - slightly update Coro::MakeMaker.
171
1725.15 Tue Jun 30 10:28:06 CEST 2009
173 - deprecate Coro::Socket, document how to get ipv6 support via
174 AnyEvent::Socket instead.
175 - implement signal->wait ($cb) interface, similar to semaphores.
176 - work around SvOK not supporting getmagic, so we have to getmagic
177 to test for undef :/ (reported by Matthias Waldorf).
178 - load Coro::AnyEvent in all modules using AnyEvent.
179 - work around perl corrupting our internal data structures,
180 reported by Tokuhiro Matsuno.
181 - enable per-coroutine real and cpu time gathering
182 (Coro::State::enable_times).
183
1845.14 Wed Jun 24 01:37:48 CEST 2009
185 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
186 as this seems to have been a difficult concept (poll, sleep, idle,
187 idle_upto).
188 - add Coro::AnyEvent::readable/writable functions.
189 - clarify Coro::EV/Event/AnyEvent manpages.
190 - free per-thread global scalars in the thread calling ->cancel, to
191 avoid crashes when $_, $@ etc., are magical but some of those
192 had already been freed.
193 - "unexperimentalise" the callback interface for Coro::Semaphore.
194 - speed up ready queue management/context switching by using a linked
195 list instead of an array (~5-10%).
196 - implement "watch" command in Coro::Debug shells.
197 - for fun, implement time-slicing as an example in the manpage.
198 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
199 Coro::Event, use the normal AnyEvent handling instead of dieing
200 (the same is true for Coro::Handle).
201 - properly document Coro::EV::timed_io_once.
202 - avoid unneccessary ->cancel calls in Coro::Handle.
203 - maybe make it work on mingw32 with win32 backend
204 (based on patch by Yasuhiro Matsumoto).
205
2065.132 Fri May 29 09:00:39 CEST 2009
207 - do not keep a reference to the argument itself in
208 Coro::Semaphore::guard, as it could change later.
209 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
210 should support a prepare callback.
211
2125.131 Mon Mar 16 23:20:37 CET 2009
213 - implement and document Coro->suspend, Coro->resume.
214 - fix Coro::Select implementation to not (often) close
215 the passed file descriptors (testcase provided by pippijn).
216
2175.13 Mon Dec 15 21:51:42 CET 2008
218 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
219 - don't set diehook to C<undef> but instead to NULL, to avoid
220 spurious warnings.
221 - fix a lot of bugs in Coro::SemaphoreSet.
222 - Coro::SemaphoreSet will less often create a semaphore needlessly.
223 - add Coro::SemaphoreSet::count and wait methods.
224 - take advantage of the new Guard module.
225 - deprecate Coro::guard.
226 - try to fix the dreaded 01_unblock tests once more. I hate it when
227 testsuites need more fixing than the code they are supposed to test.
228 - croak in more cases when a required callback isn't resolvable.
229 - fix some minor issues in Coro::State->call/eval.
230 - use current coroutine context instead of a temporary one
231 when temporarily switching to another coroutine.
232 - do not call C-level on_destroy handlers during global destruction,
233 to avoid needless segfaults.
234
2355.12 Sun Dec 7 13:30:38 CET 2008
236 - add default config for MirOS, which seems to be a bug-to-bug
237 compatible fork of openbsd ("world domination by releasing
238 openbsd cvs before the openbsd folks do it" or so :).
239 - free_padlist did destroy the names pad, not good, but didn't
240 seem to bother perl - this could fix issues such as eval ""
241 inside a function called from multiple coroutines.
242 - use a different method to detect destruction time.
243 - be more careful when freeing padlists just before global
244 destruction.
245 - fixed and expanded the call/cc example.
246 - renamed _terminate to _coro_run.
247 - new method Coro::Channel->shutdown.
248 - try pthreads on openbsd <4.4 (broken sigaltstack, will
249 pthreads fare better?).
250 - be less picky about destroying "a" running coroutine.
251
2525.11 Tue Nov 25 21:49:05 CET 2008
253 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
254 working code with failed assertions, introducing more bugs than
255 it fixes, requiring elaborate workarounds :(
256
2575.1 Mon Nov 24 08:54:59 CET 2008
258 - wrote a small introductory tutorial - Coro::Intro.
259 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
260 - Coro::Select did errornously dup the file descriptors
261 and didn't work with all AnyEvent backends.
262 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
263 LWP data transfers.
264 - disassociate c contexts from coro objects - this is agruably more
265 correct, but mostly allows sharing of cctxs between coro and state
266 objects, for added memory savings and speed increases.
267 - bumped $Coro::POOL_RSS up to 32kb by default.
268 - no longer set the optype to OP_CUSTOM, as B::* understandably
269 doesn't like this very much (and we *are* a type of entersub).
270 - implement state cloning, just to prove that call/cc can be done.
271 - automatically load Coro::AnyEvent in Coro::Handle.
272 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
273 do not have this method (and don't need it either).
274 - speed up generic anyevent methods in Coro::Handle by using rouse
275 callbacks.
276 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
277 others. It also makes the debugger happier, as you can trace
278 through the idle threads now.
279 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
280 - eg/event was pretty broken.
281 - better 5.8.6 compatibility.
282
2835.0 Thu Nov 20 10:35:05 CET 2008
11 - NEW ARCHITECTURE: use the latest 4.x version if you experience 284 - NEW ARCHITECTURE: use the latest 4.x version if you experience
12 stability issues. 285 stability issues.
13 - bump API version to 7 - all dependents must be recompiled. 286 - bump API version to 7 - all dependents must be recompiled.
14 - removed timed_* functions - they were not being used anyways 287 - removed timed_* functions - they were not being used anyways
15 and should be replaced by a more generic mechanism - 288 and should be replaced by a more generic mechanism -
16 and were annoying to support anyways :) 289 and were annoying to support anyways :)
17 - removed SemaphoreSet's waiter method - use sem instead. 290 - removed SemaphoreSet's waiter method - use sem method instead.
18 - Coro::Semaphore->adjust didn't correctly wake up enough waiters. 291 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
19 - async_pool did free a scalar value twice 292 - async_pool did free a scalar value twice
20 ("Attempt to unreference..."). 293 ("Attempt to unreference...").
21 - fix a disastrous bug in the readline optimisation
22 introduced in 4.801.
23 - fix a longstanding bug where calling terminate on a coro that 294 - fix a longstanding bug where calling terminate on a coro that
24 was waiting for a semaphore that was just becoming available 295 was waiting for a semaphore that was just becoming available
25 would cause a deadlock (semaphore would get into a state where 296 would cause a deadlock (semaphore would get into a state where
26 it was available but waiters were still blocked). 297 it was available but waiters were still blocked).
27 - calling throw on a coroutine that is waiting for a semaphore will 298 - calling throw on a coroutine that is waiting for a semaphore will
… …
69 - use new rouse functions to speed up and simplify Coro::BDB. 340 - use new rouse functions to speed up and simplify Coro::BDB.
70 - make "prefer perl native functions" work with threaded perls. 341 - make "prefer perl native functions" work with threaded perls.
71 - condense Coro::Debug ps output, hint at v and w flags. 342 - condense Coro::Debug ps output, hint at v and w flags.
72 - (libcoro) lots of minor cleanups and portability improvements. 343 - (libcoro) lots of minor cleanups and portability improvements.
73 344
3454.914 Wed Nov 19 12:54:18 CET 2008
346 - fix a disastrous bug in the readline optimisation
347 introduced in 4.801.
348
744.913 Sat Nov 15 07:58:28 CET 2008 3494.913 Sat Nov 15 07:58:28 CET 2008
75 - async_pool did free a scalar value twice 350 - async_pool did free a scalar value twice
76 ("Attempt to unreference..."). 351 ("Attempt to unreference...").
77 352
784.912 Thu Nov 13 18:31:23 CET 2008 3534.912 Thu Nov 13 18:31:23 CET 2008

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