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Comparing Coro/Changes (file contents):
Revision 1.276 by root, Thu Oct 11 00:40:48 2007 UTC vs.
Revision 1.487 by root, Mon Mar 16 22:22:12 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 4TODO: maybe implement a default message channel, very much like Erlang's
5 (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
8
95.131 Mon Mar 16 23:20:37 CET 2009
10 - implement and document Coro->suspend, Coro->resume.
11 - fix Coro::Select implementation to not (often) close
12 the passed file descriptors (testcase provided by pippijn).
13
145.13 Mon Dec 15 21:51:42 CET 2008
15 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
16 - don't set diehook to C<undef> but instead to NULL, to avoid
17 spurious warnings.
18 - fix a lot of bugs in Coro::SemaphoreSet.
19 - Coro::SemaphoreSet will less often create a semaphore needlessly.
20 - add Coro::SemaphoreSet::count and wait methods.
21 - take advantage of the new Guard module.
22 - deprecate Coro::guard.
23 - try to fix the dreaded 01_unblock tests once more. I hate it when
24 testsuites need more fixing than the code they are supposed to test.
25 - croak in more cases when a required callback isn't resolvable.
26 - fix some minor issues in Coro::State->call/eval.
27 - use current coroutine context instead of a temporary one
28 when temporarily switching to another coroutine.
29 - do not call C-level on_destroy handlers during global destruction,
30 to avoid needless segfaults.
31
325.12 Sun Dec 7 13:30:38 CET 2008
33 - add default config for MirOS, which seems to be a bug-to-bug
34 compatible fork of openbsd ("world domination by releasing
35 openbsd cvs before the openbsd folks do it" or so :).
36 - free_padlist did destroy the names pad, not good, but didn't
37 seem to bother perl - this could fix issues such as eval ""
38 inside a function called from multiple coroutines.
39 - use a different method to detect destruction time.
40 - be more careful when freeing padlists just before global
41 destruction.
42 - fixed and expanded the call/cc example.
43 - renamed _terminate to _coro_run.
44 - new method Coro::Channel->shutdown.
45 - try pthreads on openbsd <4.4 (broken sigaltstack, will
46 pthreads fare better?).
47 - be less picky about destroying "a" running coroutine.
48
495.11 Tue Nov 25 21:49:05 CET 2008
50 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
51 working code with failed assertions, introducing more bugs than
52 it fixes, requiring elaborate workarounds :(
53
545.1 Mon Nov 24 08:54:59 CET 2008
55 - wrote a small introductory tutorial - Coro::Intro.
56 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
57 - Coro::Select did errornously dup the file descriptors
58 and didn't work with all AnyEvent backends.
59 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
60 LWP data transfers.
61 - disassociate c contexts from coro objects - this is agruably more
62 correct, but mostly allows sharing of cctxs between coro and state
63 objects, for added memory savings and speed increases.
64 - bumped $Coro::POOL_RSS up to 32kb by default.
65 - no longer set the optype to OP_CUSTOM, as B::* understandably
66 doesn't like this very much (and we *are* a type of entersub).
67 - implement state cloning, just to prove that call/cc can be done.
68 - automatically load Coro::AnyEvent in Coro::Handle.
69 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
70 do not have this method (and don't need it either).
71 - speed up generic anyevent methods in Coro::Handle by using rouse
72 callbacks.
73 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
74 others. It also makes the debugger happier, as you can trace
75 through the idle threads now.
76 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
77 - eg/event was pretty broken.
78 - better 5.8.6 compatibility.
79
805.0 Thu Nov 20 10:35:05 CET 2008
81 - NEW ARCHITECTURE: use the latest 4.x version if you experience
82 stability issues.
83 - bump API version to 7 - all dependents must be recompiled.
84 - removed timed_* functions - they were not being used anyways
85 and should be replaced by a more generic mechanism -
86 and were annoying to support anyways :)
87 - removed SemaphoreSet's waiter method - use sem method instead.
88 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
89 - async_pool did free a scalar value twice
90 ("Attempt to unreference...").
91 - fix a longstanding bug where calling terminate on a coro that
92 was waiting for a semaphore that was just becoming available
93 would cause a deadlock (semaphore would get into a state where
94 it was available but waiters were still blocked).
95 - calling throw on a coroutine that is waiting for a semaphore will
96 no longer make it acquire the semaphore (and thus leak a count).
97 - perl's process emulation is now not even theoretically supported
98 anymore.
99 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
100 conversion of callback-style to blocking-style.
101 - new methods $coro->schedule_to and ->cede_to, to specifically
102 schedule or cede to a specific coroutine.
103 - new function Coro::Semaphore::wait.
104 - use named constants in Coro::Channel (Richard Hundt).
105 - directly patch the entersub opcode calling SLF functions (cede,
106 transfer and so on). this does speed up context switching, but
107 more importanly, it frees us from the hardcoded behaviour of
108 entersub, so we might actually be able to return something from
109 those functions and atcually create new ones.
110 - take advantage of __builtin_frame_address on gcc.
111 - expose THX in coroapi (not sure whether this was a wise decision,
112 as "threaded" perls are running at half speed anyways).
113 - implement execute_slf (schedule-like-function) interface that makes
114 it possible to implement schedule-like-functions in XS.
115 - use new SLF interface to massively speed up Coro::EV by roughly a
116 factor of two.
117 - used new SLF interface to massively speed up Coro::Semaphore by a
118 factor of three.
119 - used new SLF interface to speed up Coro::AIO by roughly a factor of
120 four and reduce its memory usage considerably.
121 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
122 for a nice speedup and vastly more correct behaviour. Also implement
123 a new method "sem" to get at the underlying semaphore object.
124 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
125 (in comparison) 20-40% speedup.
126 - used new SLF interface to reimplement Coro::Signal gaining
127 some unknown (because I was too lazy), but certain, speedup, and also
128 making signals reliable for the first time.
129 - used new SLF interface and other optimisations to speed up async_pool
130 by a factor of two. It also doesn't rely on perl's exception mechanism
131 to exit anymore. The overhead for terminating an async_pool, coro over
132 a normal async is now very small.
133 - sped up coroutine creation/destruction by 40%.
134 - forgot to include Coro/libcoro/README in the dist for all these years.
135 - work around a freebsd pthreads bug (manual testcancel is required as
136 pthread_cond_wait isn't a cancellation point on freebsd).
137 - use new rouse functions to speed up and simplify Coro::BDB.
138 - make "prefer perl native functions" work with threaded perls.
139 - condense Coro::Debug ps output, hint at v and w flags.
140 - (libcoro) lots of minor cleanups and portability improvements.
141
1424.914 Wed Nov 19 12:54:18 CET 2008
143 - fix a disastrous bug in the readline optimisation
144 introduced in 4.801.
145
1464.913 Sat Nov 15 07:58:28 CET 2008
147 - async_pool did free a scalar value twice
148 ("Attempt to unreference...").
149
1504.912 Thu Nov 13 18:31:23 CET 2008
151 - minor cleanups.
152 - use much larger stacks on linux and perl < 5.8.8.
153 - Coro::Debug::new_unix_server did not unlink the socket
154 when destroyed.
155
1564.911 Tue Nov 11 04:26:17 CET 2008
157 - "port" to threaded perls.
158
1594.91 Mon Nov 10 05:36:38 CET 2008
160 - the ->throw exception object no longer leaks.
161 - creating a new cctx leaked a scopestack entry (memleak).
162 - new coroutines didn't get created with a zero flags field
163 (unknown impact).
164 - calling ->throw on a not-yet-started coroutine should now work
165 instead of being ignored.
166 - ->throw is now supported on Coro::State objects.
167 - clean up cctx creation code a bit.
168 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
169
1704.9 Sat Nov 8 17:45:27 CET 2008
171 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
172 - (libcoro) no longer leak threads in the experimental pthread backend,
173 also speed it up considerably.
174 - (libcoro) do not rely on makecontext passing void *'s unscathed.
175 - fix compiletime dependencies on libcoro in the Makefile.
176 - cctx_count wasn't always updated properly.
177 - Coro::State::cctx_stacksize wasn't applied correctly.
178 - new function Coro::State::cctx_max_idle.
179 - the default max number of idle C contexts is now 4.
180 - (libcoro) try harder to get _setjmp/_longjmp.
181 - (libcoro) cleanup and extend the libcoro API to officially
182 allow the creation of empty source contexts.
183 - very experimental workaround for the totally broken netbsd platform.
184 - tried to hack around openbsd bugs.
185
1864.804 Wed Nov 5 16:36:00 CET 2008
187 - Coro::Debug::new_unix_server would not create a non-blocking listening
188 socket, sometimes causing freezes.
189 - (libcoro) fix misaligned stack points for setjmp and assembly
190 methods, which can cause crashes on x86/x86_64 with a sufficiently
191 aggressive compiler.
192 - new function: Coro::Debug::new_tcp_server.
193 - move ->throw into the Coro class because it only works on coro objects.
194
1954.803 Mon Nov 3 17:16:12 CET 2008
196 - (libcoro) use a global asm statement to become independent of gcc
197 otpimisations for CORO_ASM (thanks to pippijn for the idea).
198 - try to workaround yet another broken bsd, this time dragonfly.
199
2004.802 Thu Oct 30 10:56:12 CET 2008
201 - support -fno-omit-frame-pointer on x86 with the assembly method.
202 - tune 01_unblock.t tests a bit.
203
2044.801 Wed Oct 22 18:33:37 CEST 2008
205 - improve readline speed for very long "lines".
206 - backport to 5.8.8.
207
2084.8 Thu Oct 2 13:34:40 CEST 2008
209 - new function Coro::AIO::aio_wait.
210 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
211 - greatly speed up and reduce memory usage of Coro::AIO requests.
212 - implement some other µ-optimisations.
213
2144.749 Mon Sep 29 14:40:12 CEST 2008
215 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
216
2174.748 Sat Sep 27 14:03:19 CEST 2008
218 - implement, but do not document, PerlIO::cede(granularity).
219 - Coro::Storable forgot to wrap Storable::pstore.
220 - work around the multitude of leaks and memory corruption
221 bugs in PerlIO::via by using our own C-level perliol. As a side
222 effect, Coro::Storable is now much, much, much faster.
223
2244.747 Tue Sep 23 01:59:41 CEST 2008
225 - fix a per-cv memleak (one empty array was leaked per
226 code reference).
227 - avoid a crash in coro->call|rss when the coroutine was already
228 destroyed (most noticably when using Coro::Debug::ps :)
229 - also protect *Storable::FILE.
230 - push up default storable granularity to 20ms.
231
2324.746 Sun Sep 21 03:22:20 CEST 2008
233 - be more insistent on locking Storable against reentrancy
234 in Coro::Storable.
235 - move swap_def?v and throw to Coro::State, as documented.
236
2374.745 Thu Jul 24 00:14:38 CEST 2008
238 - remove debugging code related to MgPV_nolen_const, also try to
239 make it compile with perl 5.8.6 (yes, apple apparently loves
240 outdated software). Reported by John S.
241
2424.744 Tue Jul 8 22:06:35 CEST 2008
243 - correctly provide default DIE/WARN handlers as documented.
244 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
245 implementations inside perl work fine for us.
246
2474.743 Mon Jun 16 00:21:57 CEST 2008
248 - when using Coro::EV without running EV::loop it could
249 result in busy-waiting for events, this has been fixed.
250 - reduce codesize and improve performance by using EV_DEFAULT_UC.
251
2524.742 Sat May 31 14:10:21 CEST 2008
253 - implement a workaround for (some) perl <5.8.8 versions.
254 - require EV 3.3+.
255
2564.741 Fri May 30 23:33:09 CEST 2008
257 - tell netbsd how utterly broken their imitation of an OS is
258 and refuse to build by default if pthreads are in use.
259 - switch to "s" method on all bsd's by default, as their ucontext
260 stuff seems just too broken.
261 - fix a bug in Coro::Select.
262
2634.74 Thu May 29 20:05:31 CEST 2008
264 - do not test Coro::LWP for lack of dependencies.
265 - do not test Coro::Select for lack of working perls.
266
2674.73 Thu May 29 2008
268 - fix a bug in Coro::EV which would cause it to block despite
269 there being runnable coroutines.
270 - sprinkle "no warnings" freely over everything, also suppress
271 warnings for some other modules.
272 - fix typo in WSAEWOULDBLOCK.
273
2744.72 Sun May 25 05:14:36 CEST 2008
275 - tweak META.yaml a bit, unfortunately, there is no documented way
276 to have optional dependencies with CPAN. doh :(
277 - avoid running some tests on windows because they would fail due to
278 perl bug (broken fork, broken pipes...).
279 - work around perl on windows bugs where perl returns undocumented
280 error codes for sysread, syswrite etc. by taking advantage
281 of AnyEvent's workaround for that problem.
282 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
283 a common perl implementation bug on windows.
284 - use unix domain sockets in testsuite to work around
285 common perl implementation bugs on widows (they are emulated by
286 tcp sockets on windows. ugh.)
287
2884.71 Sat May 24 20:01:27 CEST 2008
289 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
290 - take advantage of async name resolution of AnyEvent::Util.
291 - work around brutal inet_aton override in Coro::LWP.
292 - take advantage of the readyhook in Coro::EV, for smoother
293 scheduling.
294
2954.7 Sun May 11 00:32:19 CEST 2008
296 - completely reworked the Coro manpage.
297 - added Coro::AnyEvent, generic event loop integration.
298 - implement cancel, ready and kill commands in Coro::Debug.
299 - document find_coro in Coro::Debug.
300 - incompatible change: rename has_stack to has_cctx.
301 - Coro::AIO and Coro::BDB no longer force event model detection,
302 use AnyEvent::AIO and AnyEvent::BDB.
303
3044.6 Sat Apr 26 10:05:14 CEST 2008
305 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
306 by the Coro module. It was a mistake to have it in the first place.
307 - (experimental) support for activestate perl 5.10 (method "w").
308 - (experimental) support for strawberry perl (method "a").
309 - coro_sigelem_set did not return a value although it had to,
310 actual impact unknown.
311
3124.51 Mon Apr 14 13:28:27 CEST 2008
313 - make it compile again on 5.8.
314
3154.50 Thu Apr 10 09:43:17 CEST 2008
316 - I did it twice! (see 4.49).
317
3184.49 Sun Apr 6 21:23:31 CEST 2008
319 - grr, instead of compiling the recent changes on 5.10 only they
320 were compiled on 5.8 only.
321
3224.48 Sun Apr 6 20:36:46 CEST 2008
323 - allow coroutine switches during eval's under 5.10.x, as it seems
324 the parser is a per-interpreter option now, so this is safe
325 (this might fix the odd crashing bug).
326 - drop support for 5.9.x versions: they are dead, jim.
327
3284.47 Sun Apr 6 00:37:52 CEST 2008
329 - force cctx allocation on API calls: we know we need to force one
330 and gcc actually manages to confuse our heuristic nowadays,
331 leading to crashes and worse.
332 - document force_cctx.
333
3344.46 Fri Apr 4 22:05:43 CEST 2008
335 - upgrade libcoro, resulting in pthread-backend (which was only created
336 to fulfill the rules of the programming languages shootout).
337
3384.45 Thu Mar 13 11:55:36 CET 2008
339 - fix a file leaking bug in eg/mhyttpd that would allow
340 downloading of any file (reported by oesi).
341 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
342 (also add testcase).
343 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
344 apparently having loads of fun with that).
345 - implement $state->swap_defsv, ->swap_defav and document ->throw.
346
3474.4 Wed Feb 13 16:44:29 CET 2008
348 - only assume .cfi pseudo isns exist on GNU/Linux.
349 - add get_timed method to Coro::Channels.
350 - fixed Coro::Debug manpage.
351 - perl 5.11 compatbility improvement based on patch by
352 Andreas König.
353
3544.37 Sun Jan 20 11:25:23 CET 2008
355 - soften the check for an active parser for perl 5.10 (avoiding
356 "Coro::State::transfer called while parsing" in many cases).
357
3584.36 Sun Jan 13 10:53:56 CET 2008
359 - reset diehook when terminating from an async_pool as to not
360 trigger any __DIE__ handlers.
361
3624.35 Sun Jan 13 04:14:13 CET 2008
363 - "bt" debug command now displays any exceptions
364 from longmess and also skips the innermost
365 stackframes, giving more useufl output.
366 - allow backtraces in coroutines blocked in Coro::EV,
367 at a <1% speed hit.
368 - handle localising of $SIG{__WARN__} and __DIE__
369 properly (with a proper amount of dirty hacking).
370
3714.34 Sat Dec 22 17:49:53 CET 2007
372 - upgrade to EV version 2.0 API.
373
3744.33 Mon Dec 17 08:36:12 CET 2007
375 - make Coro::AIO etc. loadable in the absence of EV.
376
3774.32 Mon Dec 17 07:46:02 CET 2007
378 - majorly improved Coro::Handle's performance with Coro::EV.
379 - implemented the until now mythical Coro::BDB module.
380 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
381
3824.31 Wed Dec 5 12:32:39 CET 2007
383 - remove warn statement form Coro::Util.
384
3854.3 Tue Dec 4 20:33:14 CET 2007
386 - calls to the idle function could cause stack corruption
387 when the stack changed.
388 - do no longer rely on the presence of EV::DNS if EV is used
389 (because it is gone), but instead take avdantage of EV::ADNS
390 if available.
391 - add ($) prototypes to all functions in Coro::Storable.
392 - use a conventional (safer) idle callback in Coro::EV.
393 - do accept quickly in Coro::Debug to avoid endless loops.
394
3954.22 Fri Nov 30 16:04:04 CET 2007
396 - really use optimised versions for Event and EV in Coro::Util
397 and Coro::Handle.
398
3994.21 Sun Nov 25 10:48:59 CET 2007
400 - fix a spurious memory read.
401 - Coro::EV no longer keeps the eventloop "alive".
402
4034.2 Fri Nov 9 20:47:05 CET 2007
404 - enable/disable tracing from a new coroutine, not a pooled one.
405 - fix a memleak in Coro::Event.
406 - removed killall call from fork_eval.
407 - made sure store_fd is already loaded so that fork_eval
408 does not have to parse autoload in each subprocess.
409 - only use assembly method if -O switch is in $Config{optimize}.
410 - add (optional) Coro::EV module, so far the best event loop module
411 directly supported by Coro.
412 - if the event model is EV, use EV::DNS to resolve
413 stuff in Coro::Util.
414 - don't get confused by multiple event notifications in Coro::Handle.
415 - initial support for EV (libevent interface).
416 - require Event and EV using configure_requires, to force their existance.
417
4184.13 Wed Oct 24 07:26:45 CEST 2007
419 - add Coro::Storable::blocking_thaw.
420 - use a vastly more complicated technique to localise
421 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
422 - use a coroutine for the idle callback Coro::Event,
423 instead of running Event in the current coroutine context.
424 This also catches recursive invocations.
425 - actually report fork errors in gethostbyname and inet_aton.
7 426
84.11 Thu Oct 11 02:40:24 CEST 2007 4274.11 Thu Oct 11 02:40:24 CEST 2007
9 - port to threaded perls. 428 - port to threaded perls.
10 429
114.1 Thu Oct 11 02:38:16 CEST 2007 4304.1 Thu Oct 11 02:38:16 CEST 2007

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