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Comparing Coro/Changes (file contents):
Revision 1.138 by root, Sun Nov 5 02:01:24 2006 UTC vs.
Revision 1.463 by root, Mon Nov 24 07:55:28 2008 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: possibly convert some of the Event modules into AnyEvent users. 3TODO: should explore PerlIO::coroaio (perl leaks like hell).
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!),
6 but very lacking in others (higher level ipc)).
4 7
5TODO: eg/lwp to use Coro::Select 85.1 Mon Nov 24 08:54:59 CET 2008
6TODO: Event/LWP.pm 9 - wrote a small introductory tutorial - Coro::Intro.
7 - should compile with perl 5.9.x now. 10 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
11 - Coro::Select did errornously dup the file descriptors
12 and didn't work with all AnyEvent backends.
13 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
14 LWP data transfers.
15 - disassociate c contexts from coro objects - this is agruably more
16 correct, but mostly allows sharing of cctxs between coro and state
17 objects, for added memory savings and speed increases.
18 - bumped $Coro::POOL_RSS up to 32kb by default.
19 - no longer set the optype to OP_CUSTOM, as B::* understandably
20 doesn't like this very much (and we *are* a type of entersub).
21 - implement state cloning, just to prove that call/cc can be done.
22 - automatically load Coro::AnyEvent in Coro::Handle.
23 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
24 do not have this method (and don't need it either).
25 - speed up generic anyevent methods in Coro::Handle by using rouse
26 callbacks.
27 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
28 others. It also makes the debugger happier, as you can trace
29 through the idle threads now.
30 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
31 - eg/event was pretty broken.
32 - better 5.8.6 compatibility.
33
345.0 Thu Nov 20 10:35:05 CET 2008
35 - NEW ARCHITECTURE: use the latest 4.x version if you experience
36 stability issues.
37 - bump API version to 7 - all dependents must be recompiled.
38 - removed timed_* functions - they were not being used anyways
39 and should be replaced by a more generic mechanism -
40 and were annoying to support anyways :)
41 - removed SemaphoreSet's waiter method - use sem method instead.
42 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
43 - async_pool did free a scalar value twice
44 ("Attempt to unreference...").
45 - fix a longstanding bug where calling terminate on a coro that
46 was waiting for a semaphore that was just becoming available
47 would cause a deadlock (semaphore would get into a state where
48 it was available but waiters were still blocked).
49 - calling throw on a coroutine that is waiting for a semaphore will
50 no longer make it acquire the semaphore (and thus leak a count).
51 - perl's process emulation is now not even theoretically supported
52 anymore.
53 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
54 conversion of callback-style to blocking-style.
55 - new methods $coro->schedule_to and ->cede_to, to specifically
56 schedule or cede to a specific coroutine.
57 - new function Coro::Semaphore::wait.
58 - use named constants in Coro::Channel (Richard Hundt).
59 - directly patch the entersub opcode calling SLF functions (cede,
60 transfer and so on). this does speed up context switching, but
61 more importanly, it frees us from the hardcoded behaviour of
62 entersub, so we might actually be able to return something from
63 those functions and atcually create new ones.
64 - take advantage of __builtin_frame_address on gcc.
65 - expose THX in coroapi (not sure whether this was a wise decision,
66 as "threaded" perls are running at half speed anyways).
67 - implement execute_slf (schedule-like-function) interface that makes
68 it possible to implement schedule-like-functions in XS.
69 - use new SLF interface to massively speed up Coro::EV by roughly a
70 factor of two.
71 - used new SLF interface to massively speed up Coro::Semaphore by a
72 factor of three.
73 - used new SLF interface to speed up Coro::AIO by roughly a factor of
74 four and reduce its memory usage considerably.
75 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
76 for a nice speedup and vastly more correct behaviour. Also implement
77 a new method "sem" to get at the underlying semaphore object.
78 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
79 (in comparison) 20-40% speedup.
80 - used new SLF interface to reimplement Coro::Signal gaining
81 some unknown (because I was too lazy), but certain, speedup, and also
82 making signals reliable for the first time.
83 - used new SLF interface and other optimisations to speed up async_pool
84 by a factor of two. It also doesn't rely on perl's exception mechanism
85 to exit anymore. The overhead for terminating an async_pool, coro over
86 a normal async is now very small.
87 - sped up coroutine creation/destruction by 40%.
88 - forgot to include Coro/libcoro/README in the dist for all these years.
89 - work around a freebsd pthreads bug (manual testcancel is required as
90 pthread_cond_wait isn't a cancellation point on freebsd).
91 - use new rouse functions to speed up and simplify Coro::BDB.
92 - make "prefer perl native functions" work with threaded perls.
93 - condense Coro::Debug ps output, hint at v and w flags.
94 - (libcoro) lots of minor cleanups and portability improvements.
95
964.914 Wed Nov 19 12:54:18 CET 2008
97 - fix a disastrous bug in the readline optimisation
98 introduced in 4.801.
99
1004.913 Sat Nov 15 07:58:28 CET 2008
101 - async_pool did free a scalar value twice
102 ("Attempt to unreference...").
103
1044.912 Thu Nov 13 18:31:23 CET 2008
105 - minor cleanups.
106 - use much larger stacks on linux and perl < 5.8.8.
107 - Coro::Debug::new_unix_server did not unlink the socket
108 when destroyed.
109
1104.911 Tue Nov 11 04:26:17 CET 2008
111 - "port" to threaded perls.
112
1134.91 Mon Nov 10 05:36:38 CET 2008
114 - the ->throw exception object no longer leaks.
115 - creating a new cctx leaked a scopestack entry (memleak).
116 - new coroutines didn't get created with a zero flags field
117 (unknown impact).
118 - calling ->throw on a not-yet-started coroutine should now work
119 instead of being ignored.
120 - ->throw is now supported on Coro::State objects.
121 - clean up cctx creation code a bit.
122 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
123
1244.9 Sat Nov 8 17:45:27 CET 2008
125 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
126 - (libcoro) no longer leak threads in the experimental pthread backend,
127 also speed it up considerably.
128 - (libcoro) do not rely on makecontext passing void *'s unscathed.
129 - fix compiletime dependencies on libcoro in the Makefile.
130 - cctx_count wasn't always updated properly.
131 - Coro::State::cctx_stacksize wasn't applied correctly.
132 - new function Coro::State::cctx_max_idle.
133 - the default max number of idle C contexts is now 4.
134 - (libcoro) try harder to get _setjmp/_longjmp.
135 - (libcoro) cleanup and extend the libcoro API to officially
136 allow the creation of empty source contexts.
137 - very experimental workaround for the totally broken netbsd platform.
138 - tried to hack around openbsd bugs.
139
1404.804 Wed Nov 5 16:36:00 CET 2008
141 - Coro::Debug::new_unix_server would not create a non-blocking listening
142 socket, sometimes causing freezes.
143 - (libcoro) fix misaligned stack points for setjmp and assembly
144 methods, which can cause crashes on x86/x86_64 with a sufficiently
145 aggressive compiler.
146 - new function: Coro::Debug::new_tcp_server.
147 - move ->throw into the Coro class because it only works on coro objects.
148
1494.803 Mon Nov 3 17:16:12 CET 2008
150 - (libcoro) use a global asm statement to become independent of gcc
151 otpimisations for CORO_ASM (thanks to pippijn for the idea).
152 - try to workaround yet another broken bsd, this time dragonfly.
153
1544.802 Thu Oct 30 10:56:12 CET 2008
155 - support -fno-omit-frame-pointer on x86 with the assembly method.
156 - tune 01_unblock.t tests a bit.
157
1584.801 Wed Oct 22 18:33:37 CEST 2008
159 - improve readline speed for very long "lines".
160 - backport to 5.8.8.
161
1624.8 Thu Oct 2 13:34:40 CEST 2008
163 - new function Coro::AIO::aio_wait.
164 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
165 - greatly speed up and reduce memory usage of Coro::AIO requests.
166 - implement some other µ-optimisations.
167
1684.749 Mon Sep 29 14:40:12 CEST 2008
169 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
170
1714.748 Sat Sep 27 14:03:19 CEST 2008
172 - implement, but do not document, PerlIO::cede(granularity).
173 - Coro::Storable forgot to wrap Storable::pstore.
174 - work around the multitude of leaks and memory corruption
175 bugs in PerlIO::via by using our own C-level perliol. As a side
176 effect, Coro::Storable is now much, much, much faster.
177
1784.747 Tue Sep 23 01:59:41 CEST 2008
179 - fix a per-cv memleak (one empty array was leaked per
180 code reference).
181 - avoid a crash in coro->call|rss when the coroutine was already
182 destroyed (most noticably when using Coro::Debug::ps :)
183 - also protect *Storable::FILE.
184 - push up default storable granularity to 20ms.
185
1864.746 Sun Sep 21 03:22:20 CEST 2008
187 - be more insistent on locking Storable against reentrancy
188 in Coro::Storable.
189 - move swap_def?v and throw to Coro::State, as documented.
190
1914.745 Thu Jul 24 00:14:38 CEST 2008
192 - remove debugging code related to MgPV_nolen_const, also try to
193 make it compile with perl 5.8.6 (yes, apple apparently loves
194 outdated software). Reported by John S.
195
1964.744 Tue Jul 8 22:06:35 CEST 2008
197 - correctly provide default DIE/WARN handlers as documented.
198 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
199 implementations inside perl work fine for us.
200
2014.743 Mon Jun 16 00:21:57 CEST 2008
202 - when using Coro::EV without running EV::loop it could
203 result in busy-waiting for events, this has been fixed.
204 - reduce codesize and improve performance by using EV_DEFAULT_UC.
205
2064.742 Sat May 31 14:10:21 CEST 2008
207 - implement a workaround for (some) perl <5.8.8 versions.
208 - require EV 3.3+.
209
2104.741 Fri May 30 23:33:09 CEST 2008
211 - tell netbsd how utterly broken their imitation of an OS is
212 and refuse to build by default if pthreads are in use.
213 - switch to "s" method on all bsd's by default, as their ucontext
214 stuff seems just too broken.
215 - fix a bug in Coro::Select.
216
2174.74 Thu May 29 20:05:31 CEST 2008
218 - do not test Coro::LWP for lack of dependencies.
219 - do not test Coro::Select for lack of working perls.
220
2214.73 Thu May 29 2008
222 - fix a bug in Coro::EV which would cause it to block despite
223 there being runnable coroutines.
224 - sprinkle "no warnings" freely over everything, also suppress
225 warnings for some other modules.
226 - fix typo in WSAEWOULDBLOCK.
227
2284.72 Sun May 25 05:14:36 CEST 2008
229 - tweak META.yaml a bit, unfortunately, there is no documented way
230 to have optional dependencies with CPAN. doh :(
231 - avoid running some tests on windows because they would fail due to
232 perl bug (broken fork, broken pipes...).
233 - work around perl on windows bugs where perl returns undocumented
234 error codes for sysread, syswrite etc. by taking advantage
235 of AnyEvent's workaround for that problem.
236 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
237 a common perl implementation bug on windows.
238 - use unix domain sockets in testsuite to work around
239 common perl implementation bugs on widows (they are emulated by
240 tcp sockets on windows. ugh.)
241
2424.71 Sat May 24 20:01:27 CEST 2008
243 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
244 - take advantage of async name resolution of AnyEvent::Util.
245 - work around brutal inet_aton override in Coro::LWP.
246 - take advantage of the readyhook in Coro::EV, for smoother
247 scheduling.
248
2494.7 Sun May 11 00:32:19 CEST 2008
250 - completely reworked the Coro manpage.
251 - added Coro::AnyEvent, generic event loop integration.
252 - implement cancel, ready and kill commands in Coro::Debug.
253 - document find_coro in Coro::Debug.
254 - incompatible change: rename has_stack to has_cctx.
255 - Coro::AIO and Coro::BDB no longer force event model detection,
256 use AnyEvent::AIO and AnyEvent::BDB.
257
2584.6 Sat Apr 26 10:05:14 CEST 2008
259 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
260 by the Coro module. It was a mistake to have it in the first place.
261 - (experimental) support for activestate perl 5.10 (method "w").
262 - (experimental) support for strawberry perl (method "a").
263 - coro_sigelem_set did not return a value although it had to,
264 actual impact unknown.
265
2664.51 Mon Apr 14 13:28:27 CEST 2008
267 - make it compile again on 5.8.
268
2694.50 Thu Apr 10 09:43:17 CEST 2008
270 - I did it twice! (see 4.49).
271
2724.49 Sun Apr 6 21:23:31 CEST 2008
273 - grr, instead of compiling the recent changes on 5.10 only they
274 were compiled on 5.8 only.
275
2764.48 Sun Apr 6 20:36:46 CEST 2008
277 - allow coroutine switches during eval's under 5.10.x, as it seems
278 the parser is a per-interpreter option now, so this is safe
279 (this might fix the odd crashing bug).
280 - drop support for 5.9.x versions: they are dead, jim.
281
2824.47 Sun Apr 6 00:37:52 CEST 2008
283 - force cctx allocation on API calls: we know we need to force one
284 and gcc actually manages to confuse our heuristic nowadays,
285 leading to crashes and worse.
286 - document force_cctx.
287
2884.46 Fri Apr 4 22:05:43 CEST 2008
289 - upgrade libcoro, resulting in pthread-backend (which was only created
290 to fulfill the rules of the programming languages shootout).
291
2924.45 Thu Mar 13 11:55:36 CET 2008
293 - fix a file leaking bug in eg/mhyttpd that would allow
294 downloading of any file (reported by oesi).
295 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
296 (also add testcase).
297 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
298 apparently having loads of fun with that).
299 - implement $state->swap_defsv, ->swap_defav and document ->throw.
300
3014.4 Wed Feb 13 16:44:29 CET 2008
302 - only assume .cfi pseudo isns exist on GNU/Linux.
303 - add get_timed method to Coro::Channels.
304 - fixed Coro::Debug manpage.
305 - perl 5.11 compatbility improvement based on patch by
306 Andreas König.
307
3084.37 Sun Jan 20 11:25:23 CET 2008
309 - soften the check for an active parser for perl 5.10 (avoiding
310 "Coro::State::transfer called while parsing" in many cases).
311
3124.36 Sun Jan 13 10:53:56 CET 2008
313 - reset diehook when terminating from an async_pool as to not
314 trigger any __DIE__ handlers.
315
3164.35 Sun Jan 13 04:14:13 CET 2008
317 - "bt" debug command now displays any exceptions
318 from longmess and also skips the innermost
319 stackframes, giving more useufl output.
320 - allow backtraces in coroutines blocked in Coro::EV,
321 at a <1% speed hit.
322 - handle localising of $SIG{__WARN__} and __DIE__
323 properly (with a proper amount of dirty hacking).
324
3254.34 Sat Dec 22 17:49:53 CET 2007
326 - upgrade to EV version 2.0 API.
327
3284.33 Mon Dec 17 08:36:12 CET 2007
329 - make Coro::AIO etc. loadable in the absence of EV.
330
3314.32 Mon Dec 17 07:46:02 CET 2007
332 - majorly improved Coro::Handle's performance with Coro::EV.
333 - implemented the until now mythical Coro::BDB module.
334 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
335
3364.31 Wed Dec 5 12:32:39 CET 2007
337 - remove warn statement form Coro::Util.
338
3394.3 Tue Dec 4 20:33:14 CET 2007
340 - calls to the idle function could cause stack corruption
341 when the stack changed.
342 - do no longer rely on the presence of EV::DNS if EV is used
343 (because it is gone), but instead take avdantage of EV::ADNS
344 if available.
345 - add ($) prototypes to all functions in Coro::Storable.
346 - use a conventional (safer) idle callback in Coro::EV.
347 - do accept quickly in Coro::Debug to avoid endless loops.
348
3494.22 Fri Nov 30 16:04:04 CET 2007
350 - really use optimised versions for Event and EV in Coro::Util
351 and Coro::Handle.
352
3534.21 Sun Nov 25 10:48:59 CET 2007
354 - fix a spurious memory read.
355 - Coro::EV no longer keeps the eventloop "alive".
356
3574.2 Fri Nov 9 20:47:05 CET 2007
358 - enable/disable tracing from a new coroutine, not a pooled one.
359 - fix a memleak in Coro::Event.
360 - removed killall call from fork_eval.
361 - made sure store_fd is already loaded so that fork_eval
362 does not have to parse autoload in each subprocess.
363 - only use assembly method if -O switch is in $Config{optimize}.
364 - add (optional) Coro::EV module, so far the best event loop module
365 directly supported by Coro.
366 - if the event model is EV, use EV::DNS to resolve
367 stuff in Coro::Util.
368 - don't get confused by multiple event notifications in Coro::Handle.
369 - initial support for EV (libevent interface).
370 - require Event and EV using configure_requires, to force their existance.
371
3724.13 Wed Oct 24 07:26:45 CEST 2007
373 - add Coro::Storable::blocking_thaw.
374 - use a vastly more complicated technique to localise
375 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
376 - use a coroutine for the idle callback Coro::Event,
377 instead of running Event in the current coroutine context.
378 This also catches recursive invocations.
379 - actually report fork errors in gethostbyname and inet_aton.
380
3814.11 Thu Oct 11 02:40:24 CEST 2007
382 - port to threaded perls.
383
3844.1 Thu Oct 11 02:38:16 CEST 2007
385 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
386 be local to each coro (see Coro::State).
387 - incompatible change: for very deep reasons, cede and cede_notself
388 cannot return anything, so nothing will be returned.
389 - possibly bring back 5.10 compatibility (untested).
390 - work around stupid (and wrong) warning on 5.10 :(.
391 - overlay the saved state over the context stack. This saves
392 a few hundred bytes per coroutine on average and also
393 speeds up context switching a bit.
394 - further tune default stack sizes.
395 - (more) correctly calculate stack usage in coro_rss.
396 - Coro::Storable::blocking_* did not properly lock
397 resulting in races between coroutines.
398 - added Coro::Storable::guard.
399 - stopping to trace a coroutine could destroy the cctx of
400 an unrelated coroutine.
401 - explain the relationship between Perl and C coroutines in
402 more detail in Coro::State.
403 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
404 causing a fork per resolve. This also affected Coro::Socket.
405 - switch to a separate stack in $coro->call/eval to avoid
406 invalidating pointers.
407
4084.03 Sat Oct 6 21:24:00 CEST 2007
409 - added Coro::throw method.
410 - minor code cleanups.
411
4124.02 Sat Oct 6 02:36:47 CEST 2007
413 - fix a very minor per-coroutine memleak (a single codereference).
414 - fixed a bug where the currently in-use c context would be freed
415 prematurely (can happen only when programs change the stacksize
416 or use tracing).
417 - tracing can no longer keep a coro alive after it terminated.
418 - do static branch prediction in the common path for gcc. gives
419 about 2-5% speed improvement here.
420
4214.01 Fri Oct 5 22:10:49 CEST 2007
422 - instead of recreating *a* standard output handle we simply
423 use STDOUT, which is faster and hopefully more robust.
424
4254.0 Fri Oct 5 12:56:00 CEST 2007
426 - incompatibly changed Coro::Storable::freeze.
427 - major new feature: added Coro::Debug, for interactive coroutine
428 debugging, tracing and much more.
429 - major bug fix: unbelievable, but true: $_, $/ and many other
430 "saved" variables actually weren't being saved. This has been fixed,
431 of course, while increasing performance while losing all the save
432 flags.
433 - save flags are gone, and all the api functions dealing with them.
434 - added Coro::Semaphore::adjust.
435 - added Coro::Util::fork_eval.
436 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
437 - added Coro::killall.
438 - reduce initial stack sizes to allow for "micro-coroutines".
439 - better async_pool resource management, moved parts of async_pool
440 handling to XS (major speed improvement).
441 - actually croak before modifying important data structures.
442 - refuse to transfer while compiling.
443 - possibly support eval EXPR better now.
444 - enable assembly per default on linux+bsd x86+amd64.
445 - all internal members were renamed _something for easier subclassing.
446 - many minor tweaks.
447
4483.63 Wed May 16 14:10:06 CEST 2007
449 - implement handcoded assembly for x86/amd64 SVR ABI.
450
4513.62 Fri Apr 27 21:36:06 CEST 2007
452 - upgrade libcoro (which might set unwind info correctly).
453 - change default on linux to setjmp/longjmp.
454
4553.61 Thu Apr 19 12:36:18 CEST 2007
456 - Coro::Storable caused an endless loop when thawing invalid
457 pst's sometimes.
458 - use a Semaphore in Coro::Storable, as Storable doesn't
459 seem to be reentrant (although it is documented to
460 be threadsafe...).
461 - fix Coro::Signal to bring back the original unreliable
462 but stateful semantics.
463 - fixed a lot of typos in Coro.pm (patch submitted by David
464 Steinbrunner, which applied flawlessly).
465
4663.6 Sat Apr 14 17:13:31 CEST 2007
467 - added some bugfixes to get eg/myhttpd working again.
468 - added Coro::Storable for often-cede'ing freeze/thaw.
469 - try to do a clean exit when a coroutine calls exit
470 (EXPERIMENTAL).
471 - got rid of indirect call through _coro_init.
472 - updated the partly antique examples in eg/ to
473 work again and be a bit less magic, too.
474 - fixed Coro::Signal semantics to work as documented again.
475
4763.55 Sun Mar 25 01:20:47 CET 2007
477 - add SAVE_DEFFH to save the default filehandle and enable
478 it by default.
479 - finally move socket-operations from Coro::Socket to Coro::Handle
480 to be able to unblock foreign sockets.
481 - add Coro::State::save_also and guarded_save.
482 - add count accessor to Coro::Semaphore.
483 - add Coro::State::cctx_stacksize.
484 - just for the fun of it, do not rely on implicit context,
485 which can dramatically improve performance, but people
486 using windows-process-emulation perls do not care much about
487 performance.
488
4893.51 Sun Mar 4 14:18:04 CET 2007
490 - fixed a problem when you weakened references to Coro::State's
491 (patch by Yuval Kogman).
492
4933.501 Wed Feb 28 12:44:07 CET 2007
494 - rename some global symbols as macosx from hell redefines
495 them without asking.
496
4973.5 Tue Feb 13 20:22:53 CET 2007
498 - do AnyEvent model detection earlier, avoiding problems
499 caused by first using AnyEvent and later Coro::Event.
500 - implement and document Coro::Event event objects.
501 - fix a potential problem in Coro::Event causing crashes.
502 - initialise PL_comppad when creating a new coroutine,
503 avoids crashes on early coro destruction.
504
5053.41 Mon Jan 22 19:19:49 CET 2007
506 - readline on Coro::Handle did not support undefined $/,
507 nor did it deliver partial lines on EOF or error.
508 - implement malloc fallback for stack allocation because
509 stupid broken idiotic OSX has a stupid broken
510 idiotic fits-the-whole-os mmap "implementation" and
511 my dick feels longer if Coro is portable even to
512 obsolete platforms.
513
5143.4 Fri Jan 19 21:52:54 CET 2007
515 - remove t/09_timer.t, as it isn't really testing much
516 but was rather flaky in practise.
517 - async_pool coro would keep arguments and callback alive until
518 it was reused.
519 - cancellation of a coroutine could cause spurious idle calls
520 in cede_notself.
521
5223.3 Sat Jan 6 03:45:00 CET 2007
523 - implement $coro->on_destroy.
524 - Coro::Event blocking semantics have been changed,
525 documented and - hopefully - improved.
526 - fix nice adding, not subtracting, from priority.
527 - fix ->prio and api_is_ready (patch by Mark Hinds).
528 - fixed an assert ("... == prev__cctx->idle_te")
529 that could errronously trigger.
530 - fix various large and small memleaks.
531 - use a (hopefully) more stable cancel implementation
532 that immediately frees the coroutine data.
533 - cede/cede_notself return a status now.
534 - added Coro::guard function.
535 - added a global coroutine pool for jobs (on my machine,
536 I can create and execute 48k simple coros/s with async,
537 and 128k coros with async_pool).
538 - Coro::AIO now uses the coroutine priority as io priority.
539
5403.2 Fri Dec 22 05:07:09 CET 2006
541 - improve portability to slightly older perls.
542 - use cleaner coroutine destruction.
543 - simplify configuration for users.
544 - optionally (unrecommended) prefer perl functions over
545 their coro replacements.
546
5473.11 Tue Dec 5 13:11:24 CET 2006
548 - fixed some bogus assert's, but as perl.h disables assert even
549 without NDEBUG (thank you very much), not too many people should
550 notice (that did include myself). Andreas König noticed, though :)
551 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
552 it. Also noticed by Andreas König :)
553 - save/restore tainted status.
554 - verified to pass the testsuite on my 5.9.5.
555
5563.1 Mon Dec 4 23:03:40 CET 2006
557 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
558 - incompatible change: transfer flags are now per-state.
559 - give a better error message on deadlock.
560 - document Coro::nready.
561 - enhanced testsuite.
562
5633.01 Sun Dec 3 23:47:42 CET 2006
564 - forgot to include Coro::Timer.
565
5663.0 Sun Dec 3 22:57:25 CET 2006
567 - the "FINALLY COMPLETELY STABLE" release (coming soon:
568 the "FAMOUS LAST WORDS" release).
569 - implement a new stack sharing algorithm, which uses a stack
570 pool (size currently hardcoded).
571 - make stack sharing mandatory (it no longer uses a heuristic).
572 - eval/die no longer cause weird problems under heavy use.
573 - Coro::Event could cause livelocks if it was used but
574 no Coro::Event watchers were used.
575 - Coro::Event now uses asynccheck as prepare does not
576 check for changed watchers.
577 - Coro::Event allows multiple waiting coros and will wake up one
578 per event.
579 - Coro::Event should be cleaner and more efficient now.
580 - new utility function Coro::unblock_sub.
581 - document the sad fact that Event is no longer reentrant.
582 - putting a coroutine into the ready queue twice could under
583 some circumstances lead to stack corruption.
584 - minor incompatibility: subclassing Coro::State is supported
585 directly now without going through a _coro_state member.
586 - state/coro switching is much faster now.
587 - very minor optimisations and code/documentation cleanup.
588 - avoid problems due to compiler inlining.
589 - removed timers from Coro::Timer -> use AnyEvent instead.
590 - replaced Coro::idle coroutine by (cleaner) idle handler.
591 - updated to newest libcoro.
592 - implement enhanced support for valgrind.
593 - implement is_ready and return value for ready.
594 - removed Coro::Cont, it was a misnomer (it's generators),
595 and it was somewhat annoying to get it right. Will come back
596 if somebody asks for it :)
597 - many ->wait methods and Coro::Event could return
598 spuriously without the event having happened.
599
6002.5 Tue Nov 7 12:22:33 CET 2006
601 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
602 use AnyEvent, moved them to Coro/.
603 - added Coro::LWP which contains all the uglyness required to
604 make LWP non-blocking.
605 - should work with perl 5.9.x now (Andreas König made me do it).
606 - fixed another bug in Coro::Select when the timeout was undef.
8 - reuse PL_start_env for all coros, saves some memory per coroutine. 607 - reuse PL_start_env for all coros, saves some memory per coroutine.
9 - manage PL_top_env differently, hopefully to avoid panic: top_env. 608 - manage PL_top_env differently, hopefully to avoid panic: top_env.
10 - timeout argument was not properly used in Coro::Socket. 609 - timeout argument was not properly used in Coro::Socket.
11 - allow limited forms of subclassing in Coro::Handle/Coro::Socket. 610 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
12 - emulate undocumented(!) functionality of IO::Socket required 611 - emulate undocumented(!) functionality of IO::Socket required
13 by LWP(!!). 612 by LWP(!!).
14 - updated eg/lwp to work with newer lwp's. 613 - updated eg/lwp to work with newer lwp's.
15 - made Coro::Util an AnyEvent user, moved it to Coro/.
16 - remove "FATAL: uncaught exception" prefix. coroutines that die 614 - remove "FATAL: uncaught exception" prefix. Coroutines that die
17 kill the whole process, just as exceptions in the main coroutine 615 kill the whole process, just as exceptions in the main "coroutine"
18 do. 616 did already.
19 617
202.1 Wed Nov 1 23:01:13 CET 2006 6182.1 Wed Nov 1 23:01:13 CET 2006
21 - fix a long-standing bug in Coro::Select where select with 619 - fix a long-standing bug in Coro::Select where select with
22 zero timeout would instead change the current default filehandle. 620 zero timeout would instead change the current default filehandle.
23 - use a simpler and hopefully more robust way to clone padlists 621 - use a simpler and hopefully more robust way to clone padlists

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