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Comparing Coro/Changes (file contents):
Revision 1.163 by root, Fri Dec 1 02:17:37 2006 UTC vs.
Revision 1.501 by root, Sat Jun 27 14:06:59 2009 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
33.0 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)).
7TODO: unready_all
8TODO: myhttpd header parsing
9TODO: channel->maxsize(newsize)?
10
11 - implement signal->wait ($cb) interface, similar to semaphores.
12 - work around SvOK not supporting getmagic, so we have to getmagic
13 to test for undef :/ (reported by Matthias Waldorf).
14
155.14 Wed Jun 24 01:37:48 CEST 2009
16 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
17 as this seems to have been a difficult concept (poll, sleep, idle,
18 idle_upto).
19 - add Coro::AnyEvent::readable/writable functions.
20 - clarify Coro::EV/Event/AnyEvent manpages.
21 - free per-thread global scalars in the thread calling ->cancel, to
22 avoid crashes when $_, $@ etc., are magical but some of those
23 had already been freed.
24 - "unexperimentalise" the callback interface for Coro::Semaphore.
25 - speed up ready queue management/context switching by using a linked
26 list instead of an array (~5-10%).
27 - implement "watch" command in Coro::Debug shells.
28 - for fun, implement time-slicing as an example in the manpage.
29 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
30 Coro::Event, use the normal AnyEvent handling instead of dieing
31 (the same is true for Coro::Handle).
32 - properly document Coro::EV::timed_io_once.
33 - avoid unneccessary ->cancel calls in Coro::Handle.
34 - maybe make it work on mingw32 with win32 backend
35 (based on patch by Yasuhiro Matsumoto).
36
375.132 Fri May 29 09:00:39 CEST 2009
38 - do not keep a reference to the argument itself in
39 Coro::Semaphore::guard, as it could change later.
40 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
41 should support a prepare callback.
42
435.131 Mon Mar 16 23:20:37 CET 2009
44 - implement and document Coro->suspend, Coro->resume.
45 - fix Coro::Select implementation to not (often) close
46 the passed file descriptors (testcase provided by pippijn).
47
485.13 Mon Dec 15 21:51:42 CET 2008
49 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
50 - don't set diehook to C<undef> but instead to NULL, to avoid
51 spurious warnings.
52 - fix a lot of bugs in Coro::SemaphoreSet.
53 - Coro::SemaphoreSet will less often create a semaphore needlessly.
54 - add Coro::SemaphoreSet::count and wait methods.
55 - take advantage of the new Guard module.
56 - deprecate Coro::guard.
57 - try to fix the dreaded 01_unblock tests once more. I hate it when
58 testsuites need more fixing than the code they are supposed to test.
59 - croak in more cases when a required callback isn't resolvable.
60 - fix some minor issues in Coro::State->call/eval.
61 - use current coroutine context instead of a temporary one
62 when temporarily switching to another coroutine.
63 - do not call C-level on_destroy handlers during global destruction,
64 to avoid needless segfaults.
65
665.12 Sun Dec 7 13:30:38 CET 2008
67 - add default config for MirOS, which seems to be a bug-to-bug
68 compatible fork of openbsd ("world domination by releasing
69 openbsd cvs before the openbsd folks do it" or so :).
70 - free_padlist did destroy the names pad, not good, but didn't
71 seem to bother perl - this could fix issues such as eval ""
72 inside a function called from multiple coroutines.
73 - use a different method to detect destruction time.
74 - be more careful when freeing padlists just before global
75 destruction.
76 - fixed and expanded the call/cc example.
77 - renamed _terminate to _coro_run.
78 - new method Coro::Channel->shutdown.
79 - try pthreads on openbsd <4.4 (broken sigaltstack, will
80 pthreads fare better?).
81 - be less picky about destroying "a" running coroutine.
82
835.11 Tue Nov 25 21:49:05 CET 2008
84 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
85 working code with failed assertions, introducing more bugs than
86 it fixes, requiring elaborate workarounds :(
87
885.1 Mon Nov 24 08:54:59 CET 2008
89 - wrote a small introductory tutorial - Coro::Intro.
90 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
91 - Coro::Select did errornously dup the file descriptors
92 and didn't work with all AnyEvent backends.
93 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
94 LWP data transfers.
95 - disassociate c contexts from coro objects - this is agruably more
96 correct, but mostly allows sharing of cctxs between coro and state
97 objects, for added memory savings and speed increases.
98 - bumped $Coro::POOL_RSS up to 32kb by default.
99 - no longer set the optype to OP_CUSTOM, as B::* understandably
100 doesn't like this very much (and we *are* a type of entersub).
101 - implement state cloning, just to prove that call/cc can be done.
102 - automatically load Coro::AnyEvent in Coro::Handle.
103 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
104 do not have this method (and don't need it either).
105 - speed up generic anyevent methods in Coro::Handle by using rouse
106 callbacks.
107 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
108 others. It also makes the debugger happier, as you can trace
109 through the idle threads now.
110 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
111 - eg/event was pretty broken.
112 - better 5.8.6 compatibility.
113
1145.0 Thu Nov 20 10:35:05 CET 2008
115 - NEW ARCHITECTURE: use the latest 4.x version if you experience
116 stability issues.
117 - bump API version to 7 - all dependents must be recompiled.
118 - removed timed_* functions - they were not being used anyways
119 and should be replaced by a more generic mechanism -
120 and were annoying to support anyways :)
121 - removed SemaphoreSet's waiter method - use sem method instead.
122 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
123 - async_pool did free a scalar value twice
124 ("Attempt to unreference...").
125 - fix a longstanding bug where calling terminate on a coro that
126 was waiting for a semaphore that was just becoming available
127 would cause a deadlock (semaphore would get into a state where
128 it was available but waiters were still blocked).
129 - calling throw on a coroutine that is waiting for a semaphore will
130 no longer make it acquire the semaphore (and thus leak a count).
131 - perl's process emulation is now not even theoretically supported
132 anymore.
133 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
134 conversion of callback-style to blocking-style.
135 - new methods $coro->schedule_to and ->cede_to, to specifically
136 schedule or cede to a specific coroutine.
137 - new function Coro::Semaphore::wait.
138 - use named constants in Coro::Channel (Richard Hundt).
139 - directly patch the entersub opcode calling SLF functions (cede,
140 transfer and so on). this does speed up context switching, but
141 more importanly, it frees us from the hardcoded behaviour of
142 entersub, so we might actually be able to return something from
143 those functions and atcually create new ones.
144 - take advantage of __builtin_frame_address on gcc.
145 - expose THX in coroapi (not sure whether this was a wise decision,
146 as "threaded" perls are running at half speed anyways).
147 - implement execute_slf (schedule-like-function) interface that makes
148 it possible to implement schedule-like-functions in XS.
149 - use new SLF interface to massively speed up Coro::EV by roughly a
150 factor of two.
151 - used new SLF interface to massively speed up Coro::Semaphore by a
152 factor of three.
153 - used new SLF interface to speed up Coro::AIO by roughly a factor of
154 four and reduce its memory usage considerably.
155 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
156 for a nice speedup and vastly more correct behaviour. Also implement
157 a new method "sem" to get at the underlying semaphore object.
158 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
159 (in comparison) 20-40% speedup.
160 - used new SLF interface to reimplement Coro::Signal gaining
161 some unknown (because I was too lazy), but certain, speedup, and also
162 making signals reliable for the first time.
163 - used new SLF interface and other optimisations to speed up async_pool
164 by a factor of two. It also doesn't rely on perl's exception mechanism
165 to exit anymore. The overhead for terminating an async_pool, coro over
166 a normal async is now very small.
167 - sped up coroutine creation/destruction by 40%.
168 - forgot to include Coro/libcoro/README in the dist for all these years.
169 - work around a freebsd pthreads bug (manual testcancel is required as
170 pthread_cond_wait isn't a cancellation point on freebsd).
171 - use new rouse functions to speed up and simplify Coro::BDB.
172 - make "prefer perl native functions" work with threaded perls.
173 - condense Coro::Debug ps output, hint at v and w flags.
174 - (libcoro) lots of minor cleanups and portability improvements.
175
1764.914 Wed Nov 19 12:54:18 CET 2008
177 - fix a disastrous bug in the readline optimisation
178 introduced in 4.801.
179
1804.913 Sat Nov 15 07:58:28 CET 2008
181 - async_pool did free a scalar value twice
182 ("Attempt to unreference...").
183
1844.912 Thu Nov 13 18:31:23 CET 2008
185 - minor cleanups.
186 - use much larger stacks on linux and perl < 5.8.8.
187 - Coro::Debug::new_unix_server did not unlink the socket
188 when destroyed.
189
1904.911 Tue Nov 11 04:26:17 CET 2008
191 - "port" to threaded perls.
192
1934.91 Mon Nov 10 05:36:38 CET 2008
194 - the ->throw exception object no longer leaks.
195 - creating a new cctx leaked a scopestack entry (memleak).
196 - new coroutines didn't get created with a zero flags field
197 (unknown impact).
198 - calling ->throw on a not-yet-started coroutine should now work
199 instead of being ignored.
200 - ->throw is now supported on Coro::State objects.
201 - clean up cctx creation code a bit.
202 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
203
2044.9 Sat Nov 8 17:45:27 CET 2008
205 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
206 - (libcoro) no longer leak threads in the experimental pthread backend,
207 also speed it up considerably.
208 - (libcoro) do not rely on makecontext passing void *'s unscathed.
209 - fix compiletime dependencies on libcoro in the Makefile.
210 - cctx_count wasn't always updated properly.
211 - Coro::State::cctx_stacksize wasn't applied correctly.
212 - new function Coro::State::cctx_max_idle.
213 - the default max number of idle C contexts is now 4.
214 - (libcoro) try harder to get _setjmp/_longjmp.
215 - (libcoro) cleanup and extend the libcoro API to officially
216 allow the creation of empty source contexts.
217 - very experimental workaround for the totally broken netbsd platform.
218 - tried to hack around openbsd bugs.
219
2204.804 Wed Nov 5 16:36:00 CET 2008
221 - Coro::Debug::new_unix_server would not create a non-blocking listening
222 socket, sometimes causing freezes.
223 - (libcoro) fix misaligned stack points for setjmp and assembly
224 methods, which can cause crashes on x86/x86_64 with a sufficiently
225 aggressive compiler.
226 - new function: Coro::Debug::new_tcp_server.
227 - move ->throw into the Coro class because it only works on coro objects.
228
2294.803 Mon Nov 3 17:16:12 CET 2008
230 - (libcoro) use a global asm statement to become independent of gcc
231 otpimisations for CORO_ASM (thanks to pippijn for the idea).
232 - try to workaround yet another broken bsd, this time dragonfly.
233
2344.802 Thu Oct 30 10:56:12 CET 2008
235 - support -fno-omit-frame-pointer on x86 with the assembly method.
236 - tune 01_unblock.t tests a bit.
237
2384.801 Wed Oct 22 18:33:37 CEST 2008
239 - improve readline speed for very long "lines".
240 - backport to 5.8.8.
241
2424.8 Thu Oct 2 13:34:40 CEST 2008
243 - new function Coro::AIO::aio_wait.
244 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
245 - greatly speed up and reduce memory usage of Coro::AIO requests.
246 - implement some other µ-optimisations.
247
2484.749 Mon Sep 29 14:40:12 CEST 2008
249 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
250
2514.748 Sat Sep 27 14:03:19 CEST 2008
252 - implement, but do not document, PerlIO::cede(granularity).
253 - Coro::Storable forgot to wrap Storable::pstore.
254 - work around the multitude of leaks and memory corruption
255 bugs in PerlIO::via by using our own C-level perliol. As a side
256 effect, Coro::Storable is now much, much, much faster.
257
2584.747 Tue Sep 23 01:59:41 CEST 2008
259 - fix a per-cv memleak (one empty array was leaked per
260 code reference).
261 - avoid a crash in coro->call|rss when the coroutine was already
262 destroyed (most noticably when using Coro::Debug::ps :)
263 - also protect *Storable::FILE.
264 - push up default storable granularity to 20ms.
265
2664.746 Sun Sep 21 03:22:20 CEST 2008
267 - be more insistent on locking Storable against reentrancy
268 in Coro::Storable.
269 - move swap_def?v and throw to Coro::State, as documented.
270
2714.745 Thu Jul 24 00:14:38 CEST 2008
272 - remove debugging code related to MgPV_nolen_const, also try to
273 make it compile with perl 5.8.6 (yes, apple apparently loves
274 outdated software). Reported by John S.
275
2764.744 Tue Jul 8 22:06:35 CEST 2008
277 - correctly provide default DIE/WARN handlers as documented.
278 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
279 implementations inside perl work fine for us.
280
2814.743 Mon Jun 16 00:21:57 CEST 2008
282 - when using Coro::EV without running EV::loop it could
283 result in busy-waiting for events, this has been fixed.
284 - reduce codesize and improve performance by using EV_DEFAULT_UC.
285
2864.742 Sat May 31 14:10:21 CEST 2008
287 - implement a workaround for (some) perl <5.8.8 versions.
288 - require EV 3.3+.
289
2904.741 Fri May 30 23:33:09 CEST 2008
291 - tell netbsd how utterly broken their imitation of an OS is
292 and refuse to build by default if pthreads are in use.
293 - switch to "s" method on all bsd's by default, as their ucontext
294 stuff seems just too broken.
295 - fix a bug in Coro::Select.
296
2974.74 Thu May 29 20:05:31 CEST 2008
298 - do not test Coro::LWP for lack of dependencies.
299 - do not test Coro::Select for lack of working perls.
300
3014.73 Thu May 29 2008
302 - fix a bug in Coro::EV which would cause it to block despite
303 there being runnable coroutines.
304 - sprinkle "no warnings" freely over everything, also suppress
305 warnings for some other modules.
306 - fix typo in WSAEWOULDBLOCK.
307
3084.72 Sun May 25 05:14:36 CEST 2008
309 - tweak META.yaml a bit, unfortunately, there is no documented way
310 to have optional dependencies with CPAN. doh :(
311 - avoid running some tests on windows because they would fail due to
312 perl bug (broken fork, broken pipes...).
313 - work around perl on windows bugs where perl returns undocumented
314 error codes for sysread, syswrite etc. by taking advantage
315 of AnyEvent's workaround for that problem.
316 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
317 a common perl implementation bug on windows.
318 - use unix domain sockets in testsuite to work around
319 common perl implementation bugs on widows (they are emulated by
320 tcp sockets on windows. ugh.)
321
3224.71 Sat May 24 20:01:27 CEST 2008
323 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
324 - take advantage of async name resolution of AnyEvent::Util.
325 - work around brutal inet_aton override in Coro::LWP.
326 - take advantage of the readyhook in Coro::EV, for smoother
327 scheduling.
328
3294.7 Sun May 11 00:32:19 CEST 2008
330 - completely reworked the Coro manpage.
331 - added Coro::AnyEvent, generic event loop integration.
332 - implement cancel, ready and kill commands in Coro::Debug.
333 - document find_coro in Coro::Debug.
334 - incompatible change: rename has_stack to has_cctx.
335 - Coro::AIO and Coro::BDB no longer force event model detection,
336 use AnyEvent::AIO and AnyEvent::BDB.
337
3384.6 Sat Apr 26 10:05:14 CEST 2008
339 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
340 by the Coro module. It was a mistake to have it in the first place.
341 - (experimental) support for activestate perl 5.10 (method "w").
342 - (experimental) support for strawberry perl (method "a").
343 - coro_sigelem_set did not return a value although it had to,
344 actual impact unknown.
345
3464.51 Mon Apr 14 13:28:27 CEST 2008
347 - make it compile again on 5.8.
348
3494.50 Thu Apr 10 09:43:17 CEST 2008
350 - I did it twice! (see 4.49).
351
3524.49 Sun Apr 6 21:23:31 CEST 2008
353 - grr, instead of compiling the recent changes on 5.10 only they
354 were compiled on 5.8 only.
355
3564.48 Sun Apr 6 20:36:46 CEST 2008
357 - allow coroutine switches during eval's under 5.10.x, as it seems
358 the parser is a per-interpreter option now, so this is safe
359 (this might fix the odd crashing bug).
360 - drop support for 5.9.x versions: they are dead, jim.
361
3624.47 Sun Apr 6 00:37:52 CEST 2008
363 - force cctx allocation on API calls: we know we need to force one
364 and gcc actually manages to confuse our heuristic nowadays,
365 leading to crashes and worse.
366 - document force_cctx.
367
3684.46 Fri Apr 4 22:05:43 CEST 2008
369 - upgrade libcoro, resulting in pthread-backend (which was only created
370 to fulfill the rules of the programming languages shootout).
371
3724.45 Thu Mar 13 11:55:36 CET 2008
373 - fix a file leaking bug in eg/mhyttpd that would allow
374 downloading of any file (reported by oesi).
375 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
376 (also add testcase).
377 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
378 apparently having loads of fun with that).
379 - implement $state->swap_defsv, ->swap_defav and document ->throw.
380
3814.4 Wed Feb 13 16:44:29 CET 2008
382 - only assume .cfi pseudo isns exist on GNU/Linux.
383 - add get_timed method to Coro::Channels.
384 - fixed Coro::Debug manpage.
385 - perl 5.11 compatbility improvement based on patch by
386 Andreas König.
387
3884.37 Sun Jan 20 11:25:23 CET 2008
389 - soften the check for an active parser for perl 5.10 (avoiding
390 "Coro::State::transfer called while parsing" in many cases).
391
3924.36 Sun Jan 13 10:53:56 CET 2008
393 - reset diehook when terminating from an async_pool as to not
394 trigger any __DIE__ handlers.
395
3964.35 Sun Jan 13 04:14:13 CET 2008
397 - "bt" debug command now displays any exceptions
398 from longmess and also skips the innermost
399 stackframes, giving more useufl output.
400 - allow backtraces in coroutines blocked in Coro::EV,
401 at a <1% speed hit.
402 - handle localising of $SIG{__WARN__} and __DIE__
403 properly (with a proper amount of dirty hacking).
404
4054.34 Sat Dec 22 17:49:53 CET 2007
406 - upgrade to EV version 2.0 API.
407
4084.33 Mon Dec 17 08:36:12 CET 2007
409 - make Coro::AIO etc. loadable in the absence of EV.
410
4114.32 Mon Dec 17 07:46:02 CET 2007
412 - majorly improved Coro::Handle's performance with Coro::EV.
413 - implemented the until now mythical Coro::BDB module.
414 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
415
4164.31 Wed Dec 5 12:32:39 CET 2007
417 - remove warn statement form Coro::Util.
418
4194.3 Tue Dec 4 20:33:14 CET 2007
420 - calls to the idle function could cause stack corruption
421 when the stack changed.
422 - do no longer rely on the presence of EV::DNS if EV is used
423 (because it is gone), but instead take avdantage of EV::ADNS
424 if available.
425 - add ($) prototypes to all functions in Coro::Storable.
426 - use a conventional (safer) idle callback in Coro::EV.
427 - do accept quickly in Coro::Debug to avoid endless loops.
428
4294.22 Fri Nov 30 16:04:04 CET 2007
430 - really use optimised versions for Event and EV in Coro::Util
431 and Coro::Handle.
432
4334.21 Sun Nov 25 10:48:59 CET 2007
434 - fix a spurious memory read.
435 - Coro::EV no longer keeps the eventloop "alive".
436
4374.2 Fri Nov 9 20:47:05 CET 2007
438 - enable/disable tracing from a new coroutine, not a pooled one.
439 - fix a memleak in Coro::Event.
440 - removed killall call from fork_eval.
441 - made sure store_fd is already loaded so that fork_eval
442 does not have to parse autoload in each subprocess.
443 - only use assembly method if -O switch is in $Config{optimize}.
444 - add (optional) Coro::EV module, so far the best event loop module
445 directly supported by Coro.
446 - if the event model is EV, use EV::DNS to resolve
447 stuff in Coro::Util.
448 - don't get confused by multiple event notifications in Coro::Handle.
449 - initial support for EV (libevent interface).
450 - require Event and EV using configure_requires, to force their existance.
451
4524.13 Wed Oct 24 07:26:45 CEST 2007
453 - add Coro::Storable::blocking_thaw.
454 - use a vastly more complicated technique to localise
455 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
456 - use a coroutine for the idle callback Coro::Event,
457 instead of running Event in the current coroutine context.
458 This also catches recursive invocations.
459 - actually report fork errors in gethostbyname and inet_aton.
460
4614.11 Thu Oct 11 02:40:24 CEST 2007
462 - port to threaded perls.
463
4644.1 Thu Oct 11 02:38:16 CEST 2007
465 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
466 be local to each coro (see Coro::State).
467 - incompatible change: for very deep reasons, cede and cede_notself
468 cannot return anything, so nothing will be returned.
469 - possibly bring back 5.10 compatibility (untested).
470 - work around stupid (and wrong) warning on 5.10 :(.
471 - overlay the saved state over the context stack. This saves
472 a few hundred bytes per coroutine on average and also
473 speeds up context switching a bit.
474 - further tune default stack sizes.
475 - (more) correctly calculate stack usage in coro_rss.
476 - Coro::Storable::blocking_* did not properly lock
477 resulting in races between coroutines.
478 - added Coro::Storable::guard.
479 - stopping to trace a coroutine could destroy the cctx of
480 an unrelated coroutine.
481 - explain the relationship between Perl and C coroutines in
482 more detail in Coro::State.
483 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
484 causing a fork per resolve. This also affected Coro::Socket.
485 - switch to a separate stack in $coro->call/eval to avoid
486 invalidating pointers.
487
4884.03 Sat Oct 6 21:24:00 CEST 2007
489 - added Coro::throw method.
490 - minor code cleanups.
491
4924.02 Sat Oct 6 02:36:47 CEST 2007
493 - fix a very minor per-coroutine memleak (a single codereference).
494 - fixed a bug where the currently in-use c context would be freed
495 prematurely (can happen only when programs change the stacksize
496 or use tracing).
497 - tracing can no longer keep a coro alive after it terminated.
498 - do static branch prediction in the common path for gcc. gives
499 about 2-5% speed improvement here.
500
5014.01 Fri Oct 5 22:10:49 CEST 2007
502 - instead of recreating *a* standard output handle we simply
503 use STDOUT, which is faster and hopefully more robust.
504
5054.0 Fri Oct 5 12:56:00 CEST 2007
506 - incompatibly changed Coro::Storable::freeze.
507 - major new feature: added Coro::Debug, for interactive coroutine
508 debugging, tracing and much more.
509 - major bug fix: unbelievable, but true: $_, $/ and many other
510 "saved" variables actually weren't being saved. This has been fixed,
511 of course, while increasing performance while losing all the save
512 flags.
513 - save flags are gone, and all the api functions dealing with them.
514 - added Coro::Semaphore::adjust.
515 - added Coro::Util::fork_eval.
516 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
517 - added Coro::killall.
518 - reduce initial stack sizes to allow for "micro-coroutines".
519 - better async_pool resource management, moved parts of async_pool
520 handling to XS (major speed improvement).
521 - actually croak before modifying important data structures.
522 - refuse to transfer while compiling.
523 - possibly support eval EXPR better now.
524 - enable assembly per default on linux+bsd x86+amd64.
525 - all internal members were renamed _something for easier subclassing.
526 - many minor tweaks.
527
5283.63 Wed May 16 14:10:06 CEST 2007
529 - implement handcoded assembly for x86/amd64 SVR ABI.
530
5313.62 Fri Apr 27 21:36:06 CEST 2007
532 - upgrade libcoro (which might set unwind info correctly).
533 - change default on linux to setjmp/longjmp.
534
5353.61 Thu Apr 19 12:36:18 CEST 2007
536 - Coro::Storable caused an endless loop when thawing invalid
537 pst's sometimes.
538 - use a Semaphore in Coro::Storable, as Storable doesn't
539 seem to be reentrant (although it is documented to
540 be threadsafe...).
541 - fix Coro::Signal to bring back the original unreliable
542 but stateful semantics.
543 - fixed a lot of typos in Coro.pm (patch submitted by David
544 Steinbrunner, which applied flawlessly).
545
5463.6 Sat Apr 14 17:13:31 CEST 2007
547 - added some bugfixes to get eg/myhttpd working again.
548 - added Coro::Storable for often-cede'ing freeze/thaw.
549 - try to do a clean exit when a coroutine calls exit
550 (EXPERIMENTAL).
551 - got rid of indirect call through _coro_init.
552 - updated the partly antique examples in eg/ to
553 work again and be a bit less magic, too.
554 - fixed Coro::Signal semantics to work as documented again.
555
5563.55 Sun Mar 25 01:20:47 CET 2007
557 - add SAVE_DEFFH to save the default filehandle and enable
558 it by default.
559 - finally move socket-operations from Coro::Socket to Coro::Handle
560 to be able to unblock foreign sockets.
561 - add Coro::State::save_also and guarded_save.
562 - add count accessor to Coro::Semaphore.
563 - add Coro::State::cctx_stacksize.
564 - just for the fun of it, do not rely on implicit context,
565 which can dramatically improve performance, but people
566 using windows-process-emulation perls do not care much about
567 performance.
568
5693.51 Sun Mar 4 14:18:04 CET 2007
570 - fixed a problem when you weakened references to Coro::State's
571 (patch by Yuval Kogman).
572
5733.501 Wed Feb 28 12:44:07 CET 2007
574 - rename some global symbols as macosx from hell redefines
575 them without asking.
576
5773.5 Tue Feb 13 20:22:53 CET 2007
578 - do AnyEvent model detection earlier, avoiding problems
579 caused by first using AnyEvent and later Coro::Event.
580 - implement and document Coro::Event event objects.
581 - fix a potential problem in Coro::Event causing crashes.
582 - initialise PL_comppad when creating a new coroutine,
583 avoids crashes on early coro destruction.
584
5853.41 Mon Jan 22 19:19:49 CET 2007
586 - readline on Coro::Handle did not support undefined $/,
587 nor did it deliver partial lines on EOF or error.
588 - implement malloc fallback for stack allocation because
589 stupid broken idiotic OSX has a stupid broken
590 idiotic fits-the-whole-os mmap "implementation" and
591 my dick feels longer if Coro is portable even to
592 obsolete platforms.
593
5943.4 Fri Jan 19 21:52:54 CET 2007
595 - remove t/09_timer.t, as it isn't really testing much
596 but was rather flaky in practise.
597 - async_pool coro would keep arguments and callback alive until
598 it was reused.
599 - cancellation of a coroutine could cause spurious idle calls
600 in cede_notself.
601
6023.3 Sat Jan 6 03:45:00 CET 2007
603 - implement $coro->on_destroy.
604 - Coro::Event blocking semantics have been changed,
605 documented and - hopefully - improved.
606 - fix nice adding, not subtracting, from priority.
607 - fix ->prio and api_is_ready (patch by Mark Hinds).
608 - fixed an assert ("... == prev__cctx->idle_te")
609 that could errronously trigger.
610 - fix various large and small memleaks.
611 - use a (hopefully) more stable cancel implementation
612 that immediately frees the coroutine data.
613 - cede/cede_notself return a status now.
614 - added Coro::guard function.
615 - added a global coroutine pool for jobs (on my machine,
616 I can create and execute 48k simple coros/s with async,
617 and 128k coros with async_pool).
618 - Coro::AIO now uses the coroutine priority as io priority.
619
6203.2 Fri Dec 22 05:07:09 CET 2006
621 - improve portability to slightly older perls.
622 - use cleaner coroutine destruction.
623 - simplify configuration for users.
624 - optionally (unrecommended) prefer perl functions over
625 their coro replacements.
626
6273.11 Tue Dec 5 13:11:24 CET 2006
628 - fixed some bogus assert's, but as perl.h disables assert even
629 without NDEBUG (thank you very much), not too many people should
630 notice (that did include myself). Andreas König noticed, though :)
631 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
632 it. Also noticed by Andreas König :)
633 - save/restore tainted status.
634 - verified to pass the testsuite on my 5.9.5.
635
6363.1 Mon Dec 4 23:03:40 CET 2006
637 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
638 - incompatible change: transfer flags are now per-state.
639 - give a better error message on deadlock.
640 - document Coro::nready.
641 - enhanced testsuite.
642
6433.01 Sun Dec 3 23:47:42 CET 2006
644 - forgot to include Coro::Timer.
645
6463.0 Sun Dec 3 22:57:25 CET 2006
4 - the "FINALLY COMPLETELY STABLE" release (coming soon: 647 - the "FINALLY COMPLETELY STABLE" release (coming soon:
5 the "FAMOUS LAST WORDS" release). 648 the "FAMOUS LAST WORDS" release).
6 - implement a new stack sharing algorithm. 649 - implement a new stack sharing algorithm, which uses a stack
650 pool (size currently hardcoded).
7 - make stack sharing mandatory (it no longer uses a heuristic). 651 - make stack sharing mandatory (it no longer uses a heuristic).
8 - eval/die no longer cause weird problems under heavy use. 652 - eval/die no longer cause weird problems under heavy use.
9 - Coro::Event could cause livelocks if it was used but 653 - Coro::Event could cause livelocks if it was used but
10 no Coro::Event watchers were used. 654 no Coro::Event watchers were used.
655 - Coro::Event now uses asynccheck as prepare does not
656 check for changed watchers.
657 - Coro::Event allows multiple waiting coros and will wake up one
658 per event.
11 - Coro::Event should be cleaner and more efficient now. 659 - Coro::Event should be cleaner and more efficient now.
660 - new utility function Coro::unblock_sub.
661 - document the sad fact that Event is no longer reentrant.
12 - putting a coroutine into the ready queue twice could under 662 - putting a coroutine into the ready queue twice could under
13 some circumstances lead to stack corruption. 663 some circumstances lead to stack corruption.
14 - minor incompatibility: subclassing Coro::State is supported 664 - minor incompatibility: subclassing Coro::State is supported
15 directly now without going through a _coro_state member. 665 directly now without going through a _coro_state member.
16 - state/coro switching is much faster now. 666 - state/coro switching is much faster now.
19 - removed timers from Coro::Timer -> use AnyEvent instead. 669 - removed timers from Coro::Timer -> use AnyEvent instead.
20 - replaced Coro::idle coroutine by (cleaner) idle handler. 670 - replaced Coro::idle coroutine by (cleaner) idle handler.
21 - updated to newest libcoro. 671 - updated to newest libcoro.
22 - implement enhanced support for valgrind. 672 - implement enhanced support for valgrind.
23 - implement is_ready and return value for ready. 673 - implement is_ready and return value for ready.
674 - removed Coro::Cont, it was a misnomer (it's generators),
675 and it was somewhat annoying to get it right. Will come back
676 if somebody asks for it :)
24 - many ->wait methods and Coro::Event could return 677 - many ->wait methods and Coro::Event could return
25 spuriously without the event having happened. 678 spuriously without the event having happened.
26 679
272.5 Tue Nov 7 12:22:33 CET 2006 6802.5 Tue Nov 7 12:22:33 CET 2006
28 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket 681 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket

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