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Comparing Coro/Changes (file contents):
Revision 1.280 by root, Tue Oct 23 01:48:33 2007 UTC vs.
Revision 1.489 by root, Mon Apr 6 03:34:21 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
7 8
84.13 9TODO: myhttpd header parsing
10 - do not keep a reference to the argument itself in
11 Coro::Senmaphore::guard, as it could change later.
12 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
13 should support a prepare callback.
14
155.131 Mon Mar 16 23:20:37 CET 2009
16 - implement and document Coro->suspend, Coro->resume.
17 - fix Coro::Select implementation to not (often) close
18 the passed file descriptors (testcase provided by pippijn).
19
205.13 Mon Dec 15 21:51:42 CET 2008
21 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
22 - don't set diehook to C<undef> but instead to NULL, to avoid
23 spurious warnings.
24 - fix a lot of bugs in Coro::SemaphoreSet.
25 - Coro::SemaphoreSet will less often create a semaphore needlessly.
26 - add Coro::SemaphoreSet::count and wait methods.
27 - take advantage of the new Guard module.
28 - deprecate Coro::guard.
29 - try to fix the dreaded 01_unblock tests once more. I hate it when
30 testsuites need more fixing than the code they are supposed to test.
31 - croak in more cases when a required callback isn't resolvable.
32 - fix some minor issues in Coro::State->call/eval.
33 - use current coroutine context instead of a temporary one
34 when temporarily switching to another coroutine.
35 - do not call C-level on_destroy handlers during global destruction,
36 to avoid needless segfaults.
37
385.12 Sun Dec 7 13:30:38 CET 2008
39 - add default config for MirOS, which seems to be a bug-to-bug
40 compatible fork of openbsd ("world domination by releasing
41 openbsd cvs before the openbsd folks do it" or so :).
42 - free_padlist did destroy the names pad, not good, but didn't
43 seem to bother perl - this could fix issues such as eval ""
44 inside a function called from multiple coroutines.
45 - use a different method to detect destruction time.
46 - be more careful when freeing padlists just before global
47 destruction.
48 - fixed and expanded the call/cc example.
49 - renamed _terminate to _coro_run.
50 - new method Coro::Channel->shutdown.
51 - try pthreads on openbsd <4.4 (broken sigaltstack, will
52 pthreads fare better?).
53 - be less picky about destroying "a" running coroutine.
54
555.11 Tue Nov 25 21:49:05 CET 2008
56 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
57 working code with failed assertions, introducing more bugs than
58 it fixes, requiring elaborate workarounds :(
59
605.1 Mon Nov 24 08:54:59 CET 2008
61 - wrote a small introductory tutorial - Coro::Intro.
62 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
63 - Coro::Select did errornously dup the file descriptors
64 and didn't work with all AnyEvent backends.
65 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
66 LWP data transfers.
67 - disassociate c contexts from coro objects - this is agruably more
68 correct, but mostly allows sharing of cctxs between coro and state
69 objects, for added memory savings and speed increases.
70 - bumped $Coro::POOL_RSS up to 32kb by default.
71 - no longer set the optype to OP_CUSTOM, as B::* understandably
72 doesn't like this very much (and we *are* a type of entersub).
73 - implement state cloning, just to prove that call/cc can be done.
74 - automatically load Coro::AnyEvent in Coro::Handle.
75 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
76 do not have this method (and don't need it either).
77 - speed up generic anyevent methods in Coro::Handle by using rouse
78 callbacks.
79 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
80 others. It also makes the debugger happier, as you can trace
81 through the idle threads now.
82 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
83 - eg/event was pretty broken.
84 - better 5.8.6 compatibility.
85
865.0 Thu Nov 20 10:35:05 CET 2008
87 - NEW ARCHITECTURE: use the latest 4.x version if you experience
88 stability issues.
89 - bump API version to 7 - all dependents must be recompiled.
90 - removed timed_* functions - they were not being used anyways
91 and should be replaced by a more generic mechanism -
92 and were annoying to support anyways :)
93 - removed SemaphoreSet's waiter method - use sem method instead.
94 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
95 - async_pool did free a scalar value twice
96 ("Attempt to unreference...").
97 - fix a longstanding bug where calling terminate on a coro that
98 was waiting for a semaphore that was just becoming available
99 would cause a deadlock (semaphore would get into a state where
100 it was available but waiters were still blocked).
101 - calling throw on a coroutine that is waiting for a semaphore will
102 no longer make it acquire the semaphore (and thus leak a count).
103 - perl's process emulation is now not even theoretically supported
104 anymore.
105 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
106 conversion of callback-style to blocking-style.
107 - new methods $coro->schedule_to and ->cede_to, to specifically
108 schedule or cede to a specific coroutine.
109 - new function Coro::Semaphore::wait.
110 - use named constants in Coro::Channel (Richard Hundt).
111 - directly patch the entersub opcode calling SLF functions (cede,
112 transfer and so on). this does speed up context switching, but
113 more importanly, it frees us from the hardcoded behaviour of
114 entersub, so we might actually be able to return something from
115 those functions and atcually create new ones.
116 - take advantage of __builtin_frame_address on gcc.
117 - expose THX in coroapi (not sure whether this was a wise decision,
118 as "threaded" perls are running at half speed anyways).
119 - implement execute_slf (schedule-like-function) interface that makes
120 it possible to implement schedule-like-functions in XS.
121 - use new SLF interface to massively speed up Coro::EV by roughly a
122 factor of two.
123 - used new SLF interface to massively speed up Coro::Semaphore by a
124 factor of three.
125 - used new SLF interface to speed up Coro::AIO by roughly a factor of
126 four and reduce its memory usage considerably.
127 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
128 for a nice speedup and vastly more correct behaviour. Also implement
129 a new method "sem" to get at the underlying semaphore object.
130 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
131 (in comparison) 20-40% speedup.
132 - used new SLF interface to reimplement Coro::Signal gaining
133 some unknown (because I was too lazy), but certain, speedup, and also
134 making signals reliable for the first time.
135 - used new SLF interface and other optimisations to speed up async_pool
136 by a factor of two. It also doesn't rely on perl's exception mechanism
137 to exit anymore. The overhead for terminating an async_pool, coro over
138 a normal async is now very small.
139 - sped up coroutine creation/destruction by 40%.
140 - forgot to include Coro/libcoro/README in the dist for all these years.
141 - work around a freebsd pthreads bug (manual testcancel is required as
142 pthread_cond_wait isn't a cancellation point on freebsd).
143 - use new rouse functions to speed up and simplify Coro::BDB.
144 - make "prefer perl native functions" work with threaded perls.
145 - condense Coro::Debug ps output, hint at v and w flags.
146 - (libcoro) lots of minor cleanups and portability improvements.
147
1484.914 Wed Nov 19 12:54:18 CET 2008
149 - fix a disastrous bug in the readline optimisation
150 introduced in 4.801.
151
1524.913 Sat Nov 15 07:58:28 CET 2008
153 - async_pool did free a scalar value twice
154 ("Attempt to unreference...").
155
1564.912 Thu Nov 13 18:31:23 CET 2008
157 - minor cleanups.
158 - use much larger stacks on linux and perl < 5.8.8.
159 - Coro::Debug::new_unix_server did not unlink the socket
160 when destroyed.
161
1624.911 Tue Nov 11 04:26:17 CET 2008
163 - "port" to threaded perls.
164
1654.91 Mon Nov 10 05:36:38 CET 2008
166 - the ->throw exception object no longer leaks.
167 - creating a new cctx leaked a scopestack entry (memleak).
168 - new coroutines didn't get created with a zero flags field
169 (unknown impact).
170 - calling ->throw on a not-yet-started coroutine should now work
171 instead of being ignored.
172 - ->throw is now supported on Coro::State objects.
173 - clean up cctx creation code a bit.
174 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
175
1764.9 Sat Nov 8 17:45:27 CET 2008
177 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
178 - (libcoro) no longer leak threads in the experimental pthread backend,
179 also speed it up considerably.
180 - (libcoro) do not rely on makecontext passing void *'s unscathed.
181 - fix compiletime dependencies on libcoro in the Makefile.
182 - cctx_count wasn't always updated properly.
183 - Coro::State::cctx_stacksize wasn't applied correctly.
184 - new function Coro::State::cctx_max_idle.
185 - the default max number of idle C contexts is now 4.
186 - (libcoro) try harder to get _setjmp/_longjmp.
187 - (libcoro) cleanup and extend the libcoro API to officially
188 allow the creation of empty source contexts.
189 - very experimental workaround for the totally broken netbsd platform.
190 - tried to hack around openbsd bugs.
191
1924.804 Wed Nov 5 16:36:00 CET 2008
193 - Coro::Debug::new_unix_server would not create a non-blocking listening
194 socket, sometimes causing freezes.
195 - (libcoro) fix misaligned stack points for setjmp and assembly
196 methods, which can cause crashes on x86/x86_64 with a sufficiently
197 aggressive compiler.
198 - new function: Coro::Debug::new_tcp_server.
199 - move ->throw into the Coro class because it only works on coro objects.
200
2014.803 Mon Nov 3 17:16:12 CET 2008
202 - (libcoro) use a global asm statement to become independent of gcc
203 otpimisations for CORO_ASM (thanks to pippijn for the idea).
204 - try to workaround yet another broken bsd, this time dragonfly.
205
2064.802 Thu Oct 30 10:56:12 CET 2008
207 - support -fno-omit-frame-pointer on x86 with the assembly method.
208 - tune 01_unblock.t tests a bit.
209
2104.801 Wed Oct 22 18:33:37 CEST 2008
211 - improve readline speed for very long "lines".
212 - backport to 5.8.8.
213
2144.8 Thu Oct 2 13:34:40 CEST 2008
215 - new function Coro::AIO::aio_wait.
216 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
217 - greatly speed up and reduce memory usage of Coro::AIO requests.
218 - implement some other µ-optimisations.
219
2204.749 Mon Sep 29 14:40:12 CEST 2008
221 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
222
2234.748 Sat Sep 27 14:03:19 CEST 2008
224 - implement, but do not document, PerlIO::cede(granularity).
225 - Coro::Storable forgot to wrap Storable::pstore.
226 - work around the multitude of leaks and memory corruption
227 bugs in PerlIO::via by using our own C-level perliol. As a side
228 effect, Coro::Storable is now much, much, much faster.
229
2304.747 Tue Sep 23 01:59:41 CEST 2008
231 - fix a per-cv memleak (one empty array was leaked per
232 code reference).
233 - avoid a crash in coro->call|rss when the coroutine was already
234 destroyed (most noticably when using Coro::Debug::ps :)
235 - also protect *Storable::FILE.
236 - push up default storable granularity to 20ms.
237
2384.746 Sun Sep 21 03:22:20 CEST 2008
239 - be more insistent on locking Storable against reentrancy
240 in Coro::Storable.
241 - move swap_def?v and throw to Coro::State, as documented.
242
2434.745 Thu Jul 24 00:14:38 CEST 2008
244 - remove debugging code related to MgPV_nolen_const, also try to
245 make it compile with perl 5.8.6 (yes, apple apparently loves
246 outdated software). Reported by John S.
247
2484.744 Tue Jul 8 22:06:35 CEST 2008
249 - correctly provide default DIE/WARN handlers as documented.
250 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
251 implementations inside perl work fine for us.
252
2534.743 Mon Jun 16 00:21:57 CEST 2008
254 - when using Coro::EV without running EV::loop it could
255 result in busy-waiting for events, this has been fixed.
256 - reduce codesize and improve performance by using EV_DEFAULT_UC.
257
2584.742 Sat May 31 14:10:21 CEST 2008
259 - implement a workaround for (some) perl <5.8.8 versions.
260 - require EV 3.3+.
261
2624.741 Fri May 30 23:33:09 CEST 2008
263 - tell netbsd how utterly broken their imitation of an OS is
264 and refuse to build by default if pthreads are in use.
265 - switch to "s" method on all bsd's by default, as their ucontext
266 stuff seems just too broken.
267 - fix a bug in Coro::Select.
268
2694.74 Thu May 29 20:05:31 CEST 2008
270 - do not test Coro::LWP for lack of dependencies.
271 - do not test Coro::Select for lack of working perls.
272
2734.73 Thu May 29 2008
274 - fix a bug in Coro::EV which would cause it to block despite
275 there being runnable coroutines.
276 - sprinkle "no warnings" freely over everything, also suppress
277 warnings for some other modules.
278 - fix typo in WSAEWOULDBLOCK.
279
2804.72 Sun May 25 05:14:36 CEST 2008
281 - tweak META.yaml a bit, unfortunately, there is no documented way
282 to have optional dependencies with CPAN. doh :(
283 - avoid running some tests on windows because they would fail due to
284 perl bug (broken fork, broken pipes...).
285 - work around perl on windows bugs where perl returns undocumented
286 error codes for sysread, syswrite etc. by taking advantage
287 of AnyEvent's workaround for that problem.
288 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
289 a common perl implementation bug on windows.
290 - use unix domain sockets in testsuite to work around
291 common perl implementation bugs on widows (they are emulated by
292 tcp sockets on windows. ugh.)
293
2944.71 Sat May 24 20:01:27 CEST 2008
295 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
296 - take advantage of async name resolution of AnyEvent::Util.
297 - work around brutal inet_aton override in Coro::LWP.
298 - take advantage of the readyhook in Coro::EV, for smoother
299 scheduling.
300
3014.7 Sun May 11 00:32:19 CEST 2008
302 - completely reworked the Coro manpage.
303 - added Coro::AnyEvent, generic event loop integration.
304 - implement cancel, ready and kill commands in Coro::Debug.
305 - document find_coro in Coro::Debug.
306 - incompatible change: rename has_stack to has_cctx.
307 - Coro::AIO and Coro::BDB no longer force event model detection,
308 use AnyEvent::AIO and AnyEvent::BDB.
309
3104.6 Sat Apr 26 10:05:14 CEST 2008
311 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
312 by the Coro module. It was a mistake to have it in the first place.
313 - (experimental) support for activestate perl 5.10 (method "w").
314 - (experimental) support for strawberry perl (method "a").
315 - coro_sigelem_set did not return a value although it had to,
316 actual impact unknown.
317
3184.51 Mon Apr 14 13:28:27 CEST 2008
319 - make it compile again on 5.8.
320
3214.50 Thu Apr 10 09:43:17 CEST 2008
322 - I did it twice! (see 4.49).
323
3244.49 Sun Apr 6 21:23:31 CEST 2008
325 - grr, instead of compiling the recent changes on 5.10 only they
326 were compiled on 5.8 only.
327
3284.48 Sun Apr 6 20:36:46 CEST 2008
329 - allow coroutine switches during eval's under 5.10.x, as it seems
330 the parser is a per-interpreter option now, so this is safe
331 (this might fix the odd crashing bug).
332 - drop support for 5.9.x versions: they are dead, jim.
333
3344.47 Sun Apr 6 00:37:52 CEST 2008
335 - force cctx allocation on API calls: we know we need to force one
336 and gcc actually manages to confuse our heuristic nowadays,
337 leading to crashes and worse.
338 - document force_cctx.
339
3404.46 Fri Apr 4 22:05:43 CEST 2008
341 - upgrade libcoro, resulting in pthread-backend (which was only created
342 to fulfill the rules of the programming languages shootout).
343
3444.45 Thu Mar 13 11:55:36 CET 2008
345 - fix a file leaking bug in eg/mhyttpd that would allow
346 downloading of any file (reported by oesi).
347 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
348 (also add testcase).
349 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
350 apparently having loads of fun with that).
351 - implement $state->swap_defsv, ->swap_defav and document ->throw.
352
3534.4 Wed Feb 13 16:44:29 CET 2008
354 - only assume .cfi pseudo isns exist on GNU/Linux.
355 - add get_timed method to Coro::Channels.
356 - fixed Coro::Debug manpage.
357 - perl 5.11 compatbility improvement based on patch by
358 Andreas König.
359
3604.37 Sun Jan 20 11:25:23 CET 2008
361 - soften the check for an active parser for perl 5.10 (avoiding
362 "Coro::State::transfer called while parsing" in many cases).
363
3644.36 Sun Jan 13 10:53:56 CET 2008
365 - reset diehook when terminating from an async_pool as to not
366 trigger any __DIE__ handlers.
367
3684.35 Sun Jan 13 04:14:13 CET 2008
369 - "bt" debug command now displays any exceptions
370 from longmess and also skips the innermost
371 stackframes, giving more useufl output.
372 - allow backtraces in coroutines blocked in Coro::EV,
373 at a <1% speed hit.
374 - handle localising of $SIG{__WARN__} and __DIE__
375 properly (with a proper amount of dirty hacking).
376
3774.34 Sat Dec 22 17:49:53 CET 2007
378 - upgrade to EV version 2.0 API.
379
3804.33 Mon Dec 17 08:36:12 CET 2007
381 - make Coro::AIO etc. loadable in the absence of EV.
382
3834.32 Mon Dec 17 07:46:02 CET 2007
384 - majorly improved Coro::Handle's performance with Coro::EV.
385 - implemented the until now mythical Coro::BDB module.
386 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
387
3884.31 Wed Dec 5 12:32:39 CET 2007
389 - remove warn statement form Coro::Util.
390
3914.3 Tue Dec 4 20:33:14 CET 2007
392 - calls to the idle function could cause stack corruption
393 when the stack changed.
394 - do no longer rely on the presence of EV::DNS if EV is used
395 (because it is gone), but instead take avdantage of EV::ADNS
396 if available.
397 - add ($) prototypes to all functions in Coro::Storable.
398 - use a conventional (safer) idle callback in Coro::EV.
399 - do accept quickly in Coro::Debug to avoid endless loops.
400
4014.22 Fri Nov 30 16:04:04 CET 2007
402 - really use optimised versions for Event and EV in Coro::Util
403 and Coro::Handle.
404
4054.21 Sun Nov 25 10:48:59 CET 2007
406 - fix a spurious memory read.
407 - Coro::EV no longer keeps the eventloop "alive".
408
4094.2 Fri Nov 9 20:47:05 CET 2007
410 - enable/disable tracing from a new coroutine, not a pooled one.
411 - fix a memleak in Coro::Event.
412 - removed killall call from fork_eval.
413 - made sure store_fd is already loaded so that fork_eval
414 does not have to parse autoload in each subprocess.
415 - only use assembly method if -O switch is in $Config{optimize}.
416 - add (optional) Coro::EV module, so far the best event loop module
417 directly supported by Coro.
418 - if the event model is EV, use EV::DNS to resolve
419 stuff in Coro::Util.
420 - don't get confused by multiple event notifications in Coro::Handle.
421 - initial support for EV (libevent interface).
422 - require Event and EV using configure_requires, to force their existance.
423
4244.13 Wed Oct 24 07:26:45 CEST 2007
9 - add Coro::Storable::blocking_thaw. 425 - add Coro::Storable::blocking_thaw.
10 - use a vastly more complicated technique to localise 426 - use a vastly more complicated technique to localise
11 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8. 427 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
12 - use a coroutine for the idle callback Coro::Event, 428 - use a coroutine for the idle callback Coro::Event,
13 instead of running Event in the current coroutine context. 429 instead of running Event in the current coroutine context.

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