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Comparing Coro/Changes (file contents):
Revision 1.448 by root, Thu Nov 20 07:02:43 2008 UTC vs.
Revision 1.583 by root, Wed Aug 3 15:16:34 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
85.0 76.04 Wed Aug 3 17:15:45 CEST 2011
8 - use even more efficient and more compatible condvars for
9 compatibility to AnyEvent 6.x :)
10 - more inconsequential ecb.h updates.
11
126.03 Wed Aug 3 11:41:30 CEST 2011
13 - change how Coro patches AnyEvent condvars for compatibility to
14 AnyEvent 6.x.
15 - update ecb.h, to no longer include <pthread.h> in case WinNT.h
16 hasn't been included.
17
186.02 Wed Jul 13 04:35:19 CEST 2011
19 - "improve portability to Gentoo" - gentoo manages to put perl variables
20 in memory areas that are farther than 2gb apart, which the jit couldn't
21 handle and barfed. now it's just a bit slower on gentoo and similar
22 systems.
23
246.01 Sun Jul 3 12:31:14 CEST 2011
25 - workarounds are good, but the test for whether pthreads are used
26 was not good. thisone should be better.
27 - check differently whether gcc generates cfi instructions itself.
28
296.0 Wed Jun 29 19:43:35 CEST 2011
30 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
31 destroyed and cleaned up automatically (e.g. async { schedule }).
32 - implement a JIT compiler for part of the thread switch code,
33 which gives a 50% speed improvement on threaded perls, and
34 about 4% on non-thraeded perls (so threaded perls now finally
35 reach about half the speed of non-threaded perls).
36 - slightly modernise Coro::Intro, add section about rouse functions.
37 - avoid DEFSV and ERRSV, giving another 10% improvement
38 in thread switching.
39 - Coro::State->is_destroyed is now called is_zombie.
40 - implement a Coro->safe_cancel method that might fail, but
41 cancels in a "safer" way if it succeeds.
42 - add preliminary support for DEBUGGING perls.
43 - get rid of two hash-accesses when initialising a new Coro - this
44 speeds up coro creation by almost a factor of two.
45 - croak when a coro that is being cancelled tries to block
46 (e.g. while executing a guard block), instead of crashing or
47 deadlocking.
48 - use a more robust and also faster method to identify Coro::State
49 objects - speeds up everything a bit.
50 - implement Coro->cancel in XS for a 20% speed improvement, and to
51 be able to implement mutual cancellation.
52 - speed up context switches by a percent or two by more efficiently
53 allocating context stack entries.
54 - implement Coro->join and Coro->on_destroy in XS for a speedup and
55 a reduction in memory use.
56 - cancelling a coro while it itself is cancelling another coro is
57 now supported and working, instead of triggering an assertion.
58 - be a bit more crash-resistant when calling (buggy) on_destroy
59 callbacks (best effort).
60 - move on_destroy into the slf_frame, to allow extension slf
61 functions to have destructors.
62 - get rid if coro refcounting - simply crash in other interpreter
63 threads by nulling the pointers on clone.
64 - simplify warn/die hook handling when loading Coro - the convoluted
65 logic seems to be no longer neccessary.
66 - use libecb instead of our own home-grown gcc hacks.
67 - document alternatives to Coro::LWP. Please use them :)
68 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
69 sigaltstack. Really. wine suffers from it, erlang suffers from it,
70 and it's known since at least 2006.
71
725.372 Wed Feb 23 06:14:30 CET 2011
73 - apparently mingw doesn't provide a working gettimeofday, try to
74 work around that by relying on Time::HiRes (indirectly brought to
75 my attention by Max Maischein).
76 - fix some portability issues when Time::HiRes was used.
77
785.371 Mon Feb 21 14:36:08 CET 2011
79 - backport to windows process emulation code again.
80
815.37 Sat Feb 19 07:49:44 CET 2011
82 - add a big "Coro thread life cycle" section to "man Coro".
83 - try a tentative workaround against the breakage that 5.13 has
84 introduced without depreciation period. sigh.
85 - no longer use Time::HiRes if gettimeofday is available, which
86 saves quite a lot of memory.
87
885.36 Sun Feb 13 05:33:41 CET 2011
89 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
90 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
91 method call.
92 - undocument Coro::Timer::sleep and obsolete whole module.
93 - optimise Coro::Timer::timeout memory and cpu usage.
94 - slightly updated Coro::Intro for recent changes.
95 - do not initialise PL_dirty anymore.
96
975.25 Thu Nov 11 01:08:39 CET 2010
98 - try a different approach on netbsd - netbsd 5 finally has marginally
99 working pthreads, but still broken ucontext/sigaltstack.
100 - openbsd 4.8 finally got their act together, Coro works out of the box
101 with asm, setjmp and pthreads (no change, just informational).
102
1035.24 Sat Oct 23 11:27:12 CEST 2010
104 - port to the EV 4.0 API.
105 - work around bugs in mingw32, making strawberry perl work
106 out of the box.
107 - correctly modify Coro::AIO function prototypes
108 so that they reflect the "no optional parameters" rule.
109 - "ported" libcoro to C++.
110
1115.23 Mon May 17 18:50:42 CEST 2010
112 - be more resistant to ordering changes when initialising
113 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
114 Waldorf).
115 - document that perl 5.12 deliberately removed support for cloning.
116
1175.22 Wed Apr 14 03:55:35 CEST 2010
118 - correctly return udnef on errors in Coro::Handle::read/write
119 (testcase by Marc Mims).
120 - convert Coro::Util into a "perl compatibility wrapper" - the functions
121 are less useful now, but are drop-in replacements for existing
122 functions, listing better alternatives in the documentation. This also
123 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
124 with Coro::Util::inet_aton.
125 - do not override $Coro::idle unconditionally in Coro.pm, as other
126 modules could have provided their own idle coro already
127 (for exmaple, Coro::AnyEvent).
128 - fix Coro::Util::gethost* functions.
129 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
130
1315.21 Wed Dec 16 07:19:51 CET 2009
132 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
133 together.
134 - add some examples on how to combine other event loops with Coro in
135 Coro::AnyEvent, and how to run it (and not to block). Seems to be
136 the most common source of confusion.
137 - try to catch people naively blocking in an event callback.
138 - work around the perl filehandle bug issue in conjunction with
139 older common::sense (as indirectly pointed out by ZSystem).
140 - clarify the "not from signal handlers" section.
141
1425.2 Sun Oct 4 14:54:24 CEST 2009
143 - Coro::Storable destroyed the prototypes of the functions it wrapped.
144 - export rouse_cb and rouse_wait by default now.
145 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
146 - new method $state->swap_sv.
147 - added section on "windows process emulation" to the manpage,
148 after a not-so-fruitful (nor-friendly) "discussion" with chip
149 salzenberg (discussion implies arguments, but his only arguments
150 were ad-hominems, one wonders why he started it in the first
151 place). I hope this explains it well enough for him to understand,
152 and maybe well enough for others to understand.
153 - use common::sense everywhere now.
154 - idle callbacks are no longer supported, use idle coros instead.
155 - print a thread listing when a deadlock is detected.
156
1575.17 Sat Aug 22 23:09:31 CEST 2009
158 - work around a bug in the perl debugger causing crashes
159 when running under the debugger by marking _pool_handler as nodebug.
160 - speed up Coro::async considerably.
161 - try some hacks to get netbsd to work "more often" - their broken
162 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
163 - convert Coro to AE 5.0 API.
164
1655.162 Tue Jul 28 04:04:03 CEST 2009
166 - perl 5.8.2 is now minimum requirement.
167 - skip t/19_handle.t on broken windows perls.
168
1695.161 Wed Jul 22 04:47:38 CEST 2009
170 - Coro::AnyEvent::poll could have a different prototype when EV was
171 used as backend (analyzed by Tatsuhiko Miyagawa).
172 - Coro::AnyEvent errornously initialised the event loop when loaded,
173 not on demand.
174 - try to workaround rare */t/01_unblock.t failures.
175
1765.16 Tue Jul 21 01:44:37 CEST 2009
177 - Coro::AnyEvent failed to hook into the event loop
178 when no threads had been readied between detecting
179 the event loop and actually running it.
180 - considerably speed up Coro::Select by taking avdantage
181 of AnyEvent > 4.8 and some other optimisations.
182 - implement paragraph readline mode in Coro::Handle
183 (based on patches by Zsbán Ambrus).
184 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
185 and analyzed by Yasuhiro MATSUMOTO).
186 - clarified libcoro license and copyright.
187 - someone stole my EXTRA_META!!!
188 - implement Coro::Select::patch_pp_sselect and it's brother,
189 for hardcode select overriding.
190
1915.151 Mon Jul 6 05:41:57 CEST 2009
192 - backport to windows process emulation code again (patch by
193 Yasuhiro MATSUMOTO).
194 - slightly update Coro::MakeMaker.
195
1965.15 Tue Jun 30 10:28:06 CEST 2009
197 - deprecate Coro::Socket, document how to get ipv6 support via
198 AnyEvent::Socket instead.
199 - implement signal->wait ($cb) interface, similar to semaphores.
200 - work around SvOK not supporting getmagic, so we have to getmagic
201 to test for undef :/ (reported by Matthias Waldorf).
202 - load Coro::AnyEvent in all modules using AnyEvent.
203 - work around perl corrupting our internal data structures,
204 reported by Tokuhiro Matsuno.
205 - enable per-coroutine real and cpu time gathering
206 (Coro::State::enable_times).
207
2085.14 Wed Jun 24 01:37:48 CEST 2009
209 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
210 as this seems to have been a difficult concept (poll, sleep, idle,
211 idle_upto).
212 - add Coro::AnyEvent::readable/writable functions.
213 - clarify Coro::EV/Event/AnyEvent manpages.
214 - free per-thread global scalars in the thread calling ->cancel, to
215 avoid crashes when $_, $@ etc., are magical but some of those
216 had already been freed.
217 - "unexperimentalise" the callback interface for Coro::Semaphore.
218 - speed up ready queue management/context switching by using a linked
219 list instead of an array (~5-10%).
220 - implement "watch" command in Coro::Debug shells.
221 - for fun, implement time-slicing as an example in the manpage.
222 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
223 Coro::Event, use the normal AnyEvent handling instead of dieing
224 (the same is true for Coro::Handle).
225 - properly document Coro::EV::timed_io_once.
226 - avoid unneccessary ->cancel calls in Coro::Handle.
227 - maybe make it work on mingw32 with win32 backend
228 (based on patch by Yasuhiro Matsumoto).
229
2305.132 Fri May 29 09:00:39 CEST 2009
231 - do not keep a reference to the argument itself in
232 Coro::Semaphore::guard, as it could change later.
233 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
234 should support a prepare callback.
235
2365.131 Mon Mar 16 23:20:37 CET 2009
237 - implement and document Coro->suspend, Coro->resume.
238 - fix Coro::Select implementation to not (often) close
239 the passed file descriptors (testcase provided by pippijn).
240
2415.13 Mon Dec 15 21:51:42 CET 2008
242 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
243 - don't set diehook to C<undef> but instead to NULL, to avoid
244 spurious warnings.
245 - fix a lot of bugs in Coro::SemaphoreSet.
246 - Coro::SemaphoreSet will less often create a semaphore needlessly.
247 - add Coro::SemaphoreSet::count and wait methods.
248 - take advantage of the new Guard module.
249 - deprecate Coro::guard.
250 - try to fix the dreaded 01_unblock tests once more. I hate it when
251 testsuites need more fixing than the code they are supposed to test.
252 - croak in more cases when a required callback isn't resolvable.
253 - fix some minor issues in Coro::State->call/eval.
254 - use current coroutine context instead of a temporary one
255 when temporarily switching to another coroutine.
256 - do not call C-level on_destroy handlers during global destruction,
257 to avoid needless segfaults.
258
2595.12 Sun Dec 7 13:30:38 CET 2008
260 - add default config for MirOS, which seems to be a bug-to-bug
261 compatible fork of openbsd ("world domination by releasing
262 openbsd cvs before the openbsd folks do it" or so :).
263 - free_padlist did destroy the names pad, not good, but didn't
264 seem to bother perl - this could fix issues such as eval ""
265 inside a function called from multiple coroutines.
266 - use a different method to detect destruction time.
267 - be more careful when freeing padlists just before global
268 destruction.
269 - fixed and expanded the call/cc example.
270 - renamed _terminate to _coro_run.
271 - new method Coro::Channel->shutdown.
272 - try pthreads on openbsd <4.4 (broken sigaltstack, will
273 pthreads fare better?).
274 - be less picky about destroying "a" running coroutine.
275
2765.11 Tue Nov 25 21:49:05 CET 2008
277 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
278 working code with failed assertions, introducing more bugs than
279 it fixes, requiring elaborate workarounds :(
280
2815.1 Mon Nov 24 08:54:59 CET 2008
282 - wrote a small introductory tutorial - Coro::Intro.
283 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
284 - Coro::Select did errornously dup the file descriptors
285 and didn't work with all AnyEvent backends.
286 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
287 LWP data transfers.
288 - disassociate c contexts from coro objects - this is agruably more
289 correct, but mostly allows sharing of cctxs between coro and state
290 objects, for added memory savings and speed increases.
291 - bumped $Coro::POOL_RSS up to 32kb by default.
292 - no longer set the optype to OP_CUSTOM, as B::* understandably
293 doesn't like this very much (and we *are* a type of entersub).
294 - implement state cloning, just to prove that call/cc can be done.
295 - automatically load Coro::AnyEvent in Coro::Handle.
296 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
297 do not have this method (and don't need it either).
298 - speed up generic anyevent methods in Coro::Handle by using rouse
299 callbacks.
300 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
301 others. It also makes the debugger happier, as you can trace
302 through the idle threads now.
303 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
304 - eg/event was pretty broken.
305 - better 5.8.6 compatibility.
306
3075.0 Thu Nov 20 10:35:05 CET 2008
9 - NEW ARCHITECTURE: use the latest 4.x version if you experience 308 - NEW ARCHITECTURE: use the latest 4.x version if you experience
10 stability issues. 309 stability issues.
11 - bump API version to 7 - all dependents must be recompiled. 310 - bump API version to 7 - all dependents must be recompiled.
12 - removed timed_* functions - they were not being used anyways 311 - removed timed_* functions - they were not being used anyways
13 and should be replaced by a more generic mechanism - 312 and should be replaced by a more generic mechanism -
14 and were annoying to support anyways :) 313 and were annoying to support anyways :)
15 - removed SemaphoreSet's waiter method - use sem instead. 314 - removed SemaphoreSet's waiter method - use sem method instead.
16 - Coro::Semaphore->adjust didn't correctly wake up enough waiters. 315 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
17 - async_pool did free a scalar value twice 316 - async_pool did free a scalar value twice
18 ("Attempt to unreference..."). 317 ("Attempt to unreference...").
19 - fix a disastrous bug in the readline optimisation
20 introduced in 4.801.
21 - fix a longstanding bug where calling terminate on a coro that 318 - fix a longstanding bug where calling terminate on a coro that
22 was waiting for a semaphore that was just becoming available 319 was waiting for a semaphore that was just becoming available
23 would cause a deadlock (semaphore would get into a state where 320 would cause a deadlock (semaphore would get into a state where
24 it was available but waiters were still blocked). 321 it was available but waiters were still blocked).
25 - calling throw on a coroutine that is waiting for a semaphore will 322 - calling throw on a coroutine that is waiting for a semaphore will
… …
67 - use new rouse functions to speed up and simplify Coro::BDB. 364 - use new rouse functions to speed up and simplify Coro::BDB.
68 - make "prefer perl native functions" work with threaded perls. 365 - make "prefer perl native functions" work with threaded perls.
69 - condense Coro::Debug ps output, hint at v and w flags. 366 - condense Coro::Debug ps output, hint at v and w flags.
70 - (libcoro) lots of minor cleanups and portability improvements. 367 - (libcoro) lots of minor cleanups and portability improvements.
71 368
3694.914 Wed Nov 19 12:54:18 CET 2008
370 - fix a disastrous bug in the readline optimisation
371 introduced in 4.801.
372
724.913 Sat Nov 15 07:58:28 CET 2008 3734.913 Sat Nov 15 07:58:28 CET 2008
73 - async_pool did free a scalar value twice 374 - async_pool did free a scalar value twice
74 ("Attempt to unreference..."). 375 ("Attempt to unreference...").
75 376
764.912 Thu Nov 13 18:31:23 CET 2008 3774.912 Thu Nov 13 18:31:23 CET 2008

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