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Comparing Coro/Changes (file contents):
Revision 1.343 by root, Fri May 9 22:29:05 2008 UTC vs.
Revision 1.519 by root, Thu Aug 13 02:35:41 2009 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO. 3TODO: should explore PerlIO::coroaio (perl leaks like hell).
4TODO: maybe implement a default message channel, very much like Erlang's 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!), 5 actor model (which is cool in a lot of important aspects (failures!),
6 but very lacking in others (higher level ipc)). 6 but very lacking in others (higher level ipc)).
7TODO: unready_all
8TODO: myhttpd header parsing
9TODO: channel->maxsize(newsize)?
7 10
8 TODO: Coro::AnyEvent 11 - speed up Coro::async considerably.
12
135.162 Tue Jul 28 04:04:03 CEST 2009
14 - perl 5.8.2 is now minimum requirement.
15 - skip t/19_handle.t on broken windows perls.
16
175.161 Wed Jul 22 04:47:38 CEST 2009
18 - Coro::AnyEvent::poll could have a different prototype when EV was
19 used as backend (analyzed by Tatsuhiko Miyagawa).
20 - Coro::AnyEvent errornously initialised the event loop when loaded,
21 not on demand.
22 - try to workaround rare */t/01_unblock.t failures.
23
245.16 Tue Jul 21 01:44:37 CEST 2009
25 - Coro::AnyEvent failed to hook into the event loop
26 when no threads had been readied between detecting
27 the event loop and actually running it.
28 - considerably speed up Coro::Select by taking avdantage
29 of AnyEvent > 4.8 and some other optimisations.
30 - implement paragraph readline mode in Coro::Handle
31 (based on patches by Zsbán Ambrus).
32 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
33 and analyzed by Yasuhiro MATSUMOTO).
34 - clarified libcoro license and copyright.
35 - someone stole my EXTRA_META!!!
36 - implement Coro::Select::patch_pp_sselect and it's brother,
37 for hardcode select overriding.
38
395.151 Mon Jul 6 05:41:57 CEST 2009
40 - backport to windows process emulation code again (patch by
41 Yasuhiro MATSUMOTO).
42 - slightly update Coro::MakeMaker.
43
445.15 Tue Jun 30 10:28:06 CEST 2009
45 - deprecate Coro::Socket, document how to get ipv6 support via
46 AnyEvent::Socket instead.
47 - implement signal->wait ($cb) interface, similar to semaphores.
48 - work around SvOK not supporting getmagic, so we have to getmagic
49 to test for undef :/ (reported by Matthias Waldorf).
50 - load Coro::AnyEvent in all modules using AnyEvent.
51 - work around perl corrupting our internal data structures,
52 reported by Tokuhiro Matsuno.
53 - enable per-coroutine real and cpu time gathering
54 (Coro::State::enable_times).
55
565.14 Wed Jun 24 01:37:48 CEST 2009
57 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
58 as this seems to have been a difficult concept (poll, sleep, idle,
59 idle_upto).
60 - add Coro::AnyEvent::readable/writable functions.
61 - clarify Coro::EV/Event/AnyEvent manpages.
62 - free per-thread global scalars in the thread calling ->cancel, to
63 avoid crashes when $_, $@ etc., are magical but some of those
64 had already been freed.
65 - "unexperimentalise" the callback interface for Coro::Semaphore.
66 - speed up ready queue management/context switching by using a linked
67 list instead of an array (~5-10%).
68 - implement "watch" command in Coro::Debug shells.
69 - for fun, implement time-slicing as an example in the manpage.
70 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
71 Coro::Event, use the normal AnyEvent handling instead of dieing
72 (the same is true for Coro::Handle).
73 - properly document Coro::EV::timed_io_once.
74 - avoid unneccessary ->cancel calls in Coro::Handle.
75 - maybe make it work on mingw32 with win32 backend
76 (based on patch by Yasuhiro Matsumoto).
77
785.132 Fri May 29 09:00:39 CEST 2009
79 - do not keep a reference to the argument itself in
80 Coro::Semaphore::guard, as it could change later.
81 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
82 should support a prepare callback.
83
845.131 Mon Mar 16 23:20:37 CET 2009
85 - implement and document Coro->suspend, Coro->resume.
86 - fix Coro::Select implementation to not (often) close
87 the passed file descriptors (testcase provided by pippijn).
88
895.13 Mon Dec 15 21:51:42 CET 2008
90 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
91 - don't set diehook to C<undef> but instead to NULL, to avoid
92 spurious warnings.
93 - fix a lot of bugs in Coro::SemaphoreSet.
94 - Coro::SemaphoreSet will less often create a semaphore needlessly.
95 - add Coro::SemaphoreSet::count and wait methods.
96 - take advantage of the new Guard module.
97 - deprecate Coro::guard.
98 - try to fix the dreaded 01_unblock tests once more. I hate it when
99 testsuites need more fixing than the code they are supposed to test.
100 - croak in more cases when a required callback isn't resolvable.
101 - fix some minor issues in Coro::State->call/eval.
102 - use current coroutine context instead of a temporary one
103 when temporarily switching to another coroutine.
104 - do not call C-level on_destroy handlers during global destruction,
105 to avoid needless segfaults.
106
1075.12 Sun Dec 7 13:30:38 CET 2008
108 - add default config for MirOS, which seems to be a bug-to-bug
109 compatible fork of openbsd ("world domination by releasing
110 openbsd cvs before the openbsd folks do it" or so :).
111 - free_padlist did destroy the names pad, not good, but didn't
112 seem to bother perl - this could fix issues such as eval ""
113 inside a function called from multiple coroutines.
114 - use a different method to detect destruction time.
115 - be more careful when freeing padlists just before global
116 destruction.
117 - fixed and expanded the call/cc example.
118 - renamed _terminate to _coro_run.
119 - new method Coro::Channel->shutdown.
120 - try pthreads on openbsd <4.4 (broken sigaltstack, will
121 pthreads fare better?).
122 - be less picky about destroying "a" running coroutine.
123
1245.11 Tue Nov 25 21:49:05 CET 2008
125 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
126 working code with failed assertions, introducing more bugs than
127 it fixes, requiring elaborate workarounds :(
128
1295.1 Mon Nov 24 08:54:59 CET 2008
130 - wrote a small introductory tutorial - Coro::Intro.
131 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
132 - Coro::Select did errornously dup the file descriptors
133 and didn't work with all AnyEvent backends.
134 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
135 LWP data transfers.
136 - disassociate c contexts from coro objects - this is agruably more
137 correct, but mostly allows sharing of cctxs between coro and state
138 objects, for added memory savings and speed increases.
139 - bumped $Coro::POOL_RSS up to 32kb by default.
140 - no longer set the optype to OP_CUSTOM, as B::* understandably
141 doesn't like this very much (and we *are* a type of entersub).
142 - implement state cloning, just to prove that call/cc can be done.
143 - automatically load Coro::AnyEvent in Coro::Handle.
144 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
145 do not have this method (and don't need it either).
146 - speed up generic anyevent methods in Coro::Handle by using rouse
147 callbacks.
148 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
149 others. It also makes the debugger happier, as you can trace
150 through the idle threads now.
151 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
152 - eg/event was pretty broken.
153 - better 5.8.6 compatibility.
154
1555.0 Thu Nov 20 10:35:05 CET 2008
156 - NEW ARCHITECTURE: use the latest 4.x version if you experience
157 stability issues.
158 - bump API version to 7 - all dependents must be recompiled.
159 - removed timed_* functions - they were not being used anyways
160 and should be replaced by a more generic mechanism -
161 and were annoying to support anyways :)
162 - removed SemaphoreSet's waiter method - use sem method instead.
163 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
164 - async_pool did free a scalar value twice
165 ("Attempt to unreference...").
166 - fix a longstanding bug where calling terminate on a coro that
167 was waiting for a semaphore that was just becoming available
168 would cause a deadlock (semaphore would get into a state where
169 it was available but waiters were still blocked).
170 - calling throw on a coroutine that is waiting for a semaphore will
171 no longer make it acquire the semaphore (and thus leak a count).
172 - perl's process emulation is now not even theoretically supported
173 anymore.
174 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
175 conversion of callback-style to blocking-style.
176 - new methods $coro->schedule_to and ->cede_to, to specifically
177 schedule or cede to a specific coroutine.
178 - new function Coro::Semaphore::wait.
179 - use named constants in Coro::Channel (Richard Hundt).
180 - directly patch the entersub opcode calling SLF functions (cede,
181 transfer and so on). this does speed up context switching, but
182 more importanly, it frees us from the hardcoded behaviour of
183 entersub, so we might actually be able to return something from
184 those functions and atcually create new ones.
185 - take advantage of __builtin_frame_address on gcc.
186 - expose THX in coroapi (not sure whether this was a wise decision,
187 as "threaded" perls are running at half speed anyways).
188 - implement execute_slf (schedule-like-function) interface that makes
189 it possible to implement schedule-like-functions in XS.
190 - use new SLF interface to massively speed up Coro::EV by roughly a
191 factor of two.
192 - used new SLF interface to massively speed up Coro::Semaphore by a
193 factor of three.
194 - used new SLF interface to speed up Coro::AIO by roughly a factor of
195 four and reduce its memory usage considerably.
196 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
197 for a nice speedup and vastly more correct behaviour. Also implement
198 a new method "sem" to get at the underlying semaphore object.
199 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
200 (in comparison) 20-40% speedup.
201 - used new SLF interface to reimplement Coro::Signal gaining
202 some unknown (because I was too lazy), but certain, speedup, and also
203 making signals reliable for the first time.
204 - used new SLF interface and other optimisations to speed up async_pool
205 by a factor of two. It also doesn't rely on perl's exception mechanism
206 to exit anymore. The overhead for terminating an async_pool, coro over
207 a normal async is now very small.
208 - sped up coroutine creation/destruction by 40%.
209 - forgot to include Coro/libcoro/README in the dist for all these years.
210 - work around a freebsd pthreads bug (manual testcancel is required as
211 pthread_cond_wait isn't a cancellation point on freebsd).
212 - use new rouse functions to speed up and simplify Coro::BDB.
213 - make "prefer perl native functions" work with threaded perls.
214 - condense Coro::Debug ps output, hint at v and w flags.
215 - (libcoro) lots of minor cleanups and portability improvements.
216
2174.914 Wed Nov 19 12:54:18 CET 2008
218 - fix a disastrous bug in the readline optimisation
219 introduced in 4.801.
220
2214.913 Sat Nov 15 07:58:28 CET 2008
222 - async_pool did free a scalar value twice
223 ("Attempt to unreference...").
224
2254.912 Thu Nov 13 18:31:23 CET 2008
226 - minor cleanups.
227 - use much larger stacks on linux and perl < 5.8.8.
228 - Coro::Debug::new_unix_server did not unlink the socket
229 when destroyed.
230
2314.911 Tue Nov 11 04:26:17 CET 2008
232 - "port" to threaded perls.
233
2344.91 Mon Nov 10 05:36:38 CET 2008
235 - the ->throw exception object no longer leaks.
236 - creating a new cctx leaked a scopestack entry (memleak).
237 - new coroutines didn't get created with a zero flags field
238 (unknown impact).
239 - calling ->throw on a not-yet-started coroutine should now work
240 instead of being ignored.
241 - ->throw is now supported on Coro::State objects.
242 - clean up cctx creation code a bit.
243 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
244
2454.9 Sat Nov 8 17:45:27 CET 2008
246 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
247 - (libcoro) no longer leak threads in the experimental pthread backend,
248 also speed it up considerably.
249 - (libcoro) do not rely on makecontext passing void *'s unscathed.
250 - fix compiletime dependencies on libcoro in the Makefile.
251 - cctx_count wasn't always updated properly.
252 - Coro::State::cctx_stacksize wasn't applied correctly.
253 - new function Coro::State::cctx_max_idle.
254 - the default max number of idle C contexts is now 4.
255 - (libcoro) try harder to get _setjmp/_longjmp.
256 - (libcoro) cleanup and extend the libcoro API to officially
257 allow the creation of empty source contexts.
258 - very experimental workaround for the totally broken netbsd platform.
259 - tried to hack around openbsd bugs.
260
2614.804 Wed Nov 5 16:36:00 CET 2008
262 - Coro::Debug::new_unix_server would not create a non-blocking listening
263 socket, sometimes causing freezes.
264 - (libcoro) fix misaligned stack points for setjmp and assembly
265 methods, which can cause crashes on x86/x86_64 with a sufficiently
266 aggressive compiler.
267 - new function: Coro::Debug::new_tcp_server.
268 - move ->throw into the Coro class because it only works on coro objects.
269
2704.803 Mon Nov 3 17:16:12 CET 2008
271 - (libcoro) use a global asm statement to become independent of gcc
272 otpimisations for CORO_ASM (thanks to pippijn for the idea).
273 - try to workaround yet another broken bsd, this time dragonfly.
274
2754.802 Thu Oct 30 10:56:12 CET 2008
276 - support -fno-omit-frame-pointer on x86 with the assembly method.
277 - tune 01_unblock.t tests a bit.
278
2794.801 Wed Oct 22 18:33:37 CEST 2008
280 - improve readline speed for very long "lines".
281 - backport to 5.8.8.
282
2834.8 Thu Oct 2 13:34:40 CEST 2008
284 - new function Coro::AIO::aio_wait.
285 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
286 - greatly speed up and reduce memory usage of Coro::AIO requests.
287 - implement some other µ-optimisations.
288
2894.749 Mon Sep 29 14:40:12 CEST 2008
290 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
291
2924.748 Sat Sep 27 14:03:19 CEST 2008
293 - implement, but do not document, PerlIO::cede(granularity).
294 - Coro::Storable forgot to wrap Storable::pstore.
295 - work around the multitude of leaks and memory corruption
296 bugs in PerlIO::via by using our own C-level perliol. As a side
297 effect, Coro::Storable is now much, much, much faster.
298
2994.747 Tue Sep 23 01:59:41 CEST 2008
300 - fix a per-cv memleak (one empty array was leaked per
301 code reference).
302 - avoid a crash in coro->call|rss when the coroutine was already
303 destroyed (most noticably when using Coro::Debug::ps :)
304 - also protect *Storable::FILE.
305 - push up default storable granularity to 20ms.
306
3074.746 Sun Sep 21 03:22:20 CEST 2008
308 - be more insistent on locking Storable against reentrancy
309 in Coro::Storable.
310 - move swap_def?v and throw to Coro::State, as documented.
311
3124.745 Thu Jul 24 00:14:38 CEST 2008
313 - remove debugging code related to MgPV_nolen_const, also try to
314 make it compile with perl 5.8.6 (yes, apple apparently loves
315 outdated software). Reported by John S.
316
3174.744 Tue Jul 8 22:06:35 CEST 2008
318 - correctly provide default DIE/WARN handlers as documented.
319 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
320 implementations inside perl work fine for us.
321
3224.743 Mon Jun 16 00:21:57 CEST 2008
323 - when using Coro::EV without running EV::loop it could
324 result in busy-waiting for events, this has been fixed.
325 - reduce codesize and improve performance by using EV_DEFAULT_UC.
326
3274.742 Sat May 31 14:10:21 CEST 2008
328 - implement a workaround for (some) perl <5.8.8 versions.
329 - require EV 3.3+.
330
3314.741 Fri May 30 23:33:09 CEST 2008
332 - tell netbsd how utterly broken their imitation of an OS is
333 and refuse to build by default if pthreads are in use.
334 - switch to "s" method on all bsd's by default, as their ucontext
335 stuff seems just too broken.
336 - fix a bug in Coro::Select.
337
3384.74 Thu May 29 20:05:31 CEST 2008
339 - do not test Coro::LWP for lack of dependencies.
340 - do not test Coro::Select for lack of working perls.
341
3424.73 Thu May 29 2008
343 - fix a bug in Coro::EV which would cause it to block despite
344 there being runnable coroutines.
345 - sprinkle "no warnings" freely over everything, also suppress
346 warnings for some other modules.
347 - fix typo in WSAEWOULDBLOCK.
348
3494.72 Sun May 25 05:14:36 CEST 2008
350 - tweak META.yaml a bit, unfortunately, there is no documented way
351 to have optional dependencies with CPAN. doh :(
352 - avoid running some tests on windows because they would fail due to
353 perl bug (broken fork, broken pipes...).
354 - work around perl on windows bugs where perl returns undocumented
355 error codes for sysread, syswrite etc. by taking advantage
356 of AnyEvent's workaround for that problem.
357 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
358 a common perl implementation bug on windows.
359 - use unix domain sockets in testsuite to work around
360 common perl implementation bugs on widows (they are emulated by
361 tcp sockets on windows. ugh.)
362
3634.71 Sat May 24 20:01:27 CEST 2008
364 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
365 - take advantage of async name resolution of AnyEvent::Util.
366 - work around brutal inet_aton override in Coro::LWP.
367 - take advantage of the readyhook in Coro::EV, for smoother
368 scheduling.
369
3704.7 Sun May 11 00:32:19 CEST 2008
9 - completely reworked the Coro manpage. 371 - completely reworked the Coro manpage.
10 - added Coro::AnyEvent, generic event loop integration. 372 - added Coro::AnyEvent, generic event loop integration.
11 - implement cancel, ready and kill commands in Coro::Debug. 373 - implement cancel, ready and kill commands in Coro::Debug.
12 - document find_coro in Coro::Debug. 374 - document find_coro in Coro::Debug.
13 - incompatible change: rename has_stack to has_cctx. 375 - incompatible change: rename has_stack to has_cctx.
376 - Coro::AIO and Coro::BDB no longer force event model detection,
377 use AnyEvent::AIO and AnyEvent::BDB.
14 378
154.6 Sat Apr 26 10:05:14 CEST 2008 3794.6 Sat Apr 26 10:05:14 CEST 2008
16 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported 380 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
17 by the Coro module. It was a mistake to have it in the first place. 381 by the Coro module. It was a mistake to have it in the first place.
18 - (experimental) support for activestate perl 5.10 (method "w"). 382 - (experimental) support for activestate perl 5.10 (method "w").

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