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Comparing Coro/Changes (file contents):
Revision 1.186 by root, Wed Dec 27 09:49:24 2006 UTC vs.
Revision 1.397 by root, Sat Nov 8 16:46:32 2008 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: better (earlier) error messages on broken transfer's 3TODO: should explore PerlIO::coroaio (perl leaks like hell).
4TODO: give some sensible deifnition to running an event loop 4TODO: maybe implement a default message channel, very much like Erlang's
5as coroutine with higher priority. 5 actor model (which is cool in a lot of important aspects (failures!),
6 but very lacking in others (higher level ipc)).
6 7
84.9 Sat Nov 8 17:45:27 CET 2008
9 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
10 - (libcoro) no longer leak threads in the experimental pthread backend,
11 also speed it up considerably.
12 - (libcoro) do not rely on makecontext passing void *'s unscathed.
13 - fix compiletime dependencies on libcoro in the Makefile.
14 - cctx_count wasn't always updated properly.
15 - Coro::State::cctx_stacksize wasn't applied correctly.
16 - new function Coro::State::cctx_max_idle.
17 - the default max number of idle C contexts is now 4.
18 - (libcoro) try harder to get _setjmp/_longjmp.
19 - (libcoro) cleanup and extend the libcoro API to officially
20 allow the creation of empty source contexts.
21 - very experimental workaround for the totally broken netbsd platform.
22 - tried to hack around openbsd bugs.
23
244.804 Wed Nov 5 16:36:00 CET 2008
25 - Coro::Debug::new_unix_server would not create a non-blocking listening
26 socket, sometimes causing freezes.
27 - (libcoro) fix misaligned stack points for setjmp and assembly
28 methods, which can cause crashes on x86/x86_64 with a sufficiently
29 aggressive compiler.
30 - new function: Coro::Debug::new_tcp_server.
31 - move ->throw into the Coro class because it only works on coro objects.
32
334.803 Mon Nov 3 17:16:12 CET 2008
34 - (libcoro) use a global asm statement to become independent of gcc
35 otpimisations for CORO_ASM (thanks to pippijn for the idea).
36 - try to workaround yet another broken bsd, this time dragonfly.
37
384.802 Thu Oct 30 10:56:12 CET 2008
39 - support -fno-omit-frame-pointer on x86 with the assembly method.
40 - tune 01_unblock.t tests a bit.
41
424.801 Wed Oct 22 18:33:37 CEST 2008
43 - improve readline speed for very long "lines".
44 - backport to 5.8.8.
45
464.8 Thu Oct 2 13:34:40 CEST 2008
47 - new function Coro::AIO::aio_wait.
48 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
49 - greatly speed up and reduce memory usage of Coro::AIO requests.
50 - implement some other µ-optimisations.
51
524.749 Mon Sep 29 14:40:12 CEST 2008
53 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
54
554.748 Sat Sep 27 14:03:19 CEST 2008
56 - implement, but do not document, PerlIO::cede(granularity).
57 - Coro::Storable forgot to wrap Storable::pstore.
58 - work around the multitude of leaks and memory corruption
59 bugs in PerlIO::via by using our own C-level perliol. As a side
60 effect, Coro::Storable is now much, much, much faster.
61
624.747 Tue Sep 23 01:59:41 CEST 2008
63 - fix a per-cv memleak (one empty array was leaked per
64 code reference).
65 - avoid a crash in coro->call|rss when the coroutine was already
66 destroyed (most noticably when using Coro::Debug::ps :)
67 - also protect *Storable::FILE.
68 - push up default storable granularity to 20ms.
69
704.746 Sun Sep 21 03:22:20 CEST 2008
71 - be more insistent on locking Storable against reentrancy
72 in Coro::Storable.
73 - move swap_def?v and throw to Coro::State, as documented.
74
754.745 Thu Jul 24 00:14:38 CEST 2008
76 - remove debugging code related to MgPV_nolen_const, also try to
77 make it compile with perl 5.8.6 (yes, apple apparently loves
78 outdated software). Reported by John S.
79
804.744 Tue Jul 8 22:06:35 CEST 2008
81 - correctly provide default DIE/WARN handlers as documented.
82 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
83 implementations inside perl work fine for us.
84
854.743 Mon Jun 16 00:21:57 CEST 2008
86 - when using Coro::EV without running EV::loop it could
87 result in busy-waiting for events, this has been fixed.
88 - reduce codesize and improve performance by using EV_DEFAULT_UC.
89
904.742 Sat May 31 14:10:21 CEST 2008
91 - implement a workaround for (some) perl <5.8.8 versions.
92 - require EV 3.3+.
93
944.741 Fri May 30 23:33:09 CEST 2008
95 - tell netbsd how utterly broken their imitation of an OS is
96 and refuse to build by default if pthreads are in use.
97 - switch to "s" method on all bsd's by default, as their ucontext
98 stuff seems just too broken.
99 - fix a bug in Coro::Select.
100
1014.74 Thu May 29 20:05:31 CEST 2008
102 - do not test Coro::LWP for lack of dependencies.
103 - do not test Coro::Select for lack of working perls.
104
1054.73 Thu May 29 2008
106 - fix a bug in Coro::EV which would cause it to block despite
107 there being runnable coroutines.
108 - sprinkle "no warnings" freely over everything, also suppress
109 warnings for some other modules.
110 - fix typo in WSAEWOULDBLOCK.
111
1124.72 Sun May 25 05:14:36 CEST 2008
113 - tweak META.yaml a bit, unfortunately, there is no documented way
114 to have optional dependencies with CPAN. doh :(
115 - avoid running some tests on windows because they would fail due to
116 perl bug (broken fork, broken pipes...).
117 - work around perl on windows bugs where perl returns undocumented
118 error codes for sysread, syswrite etc. by taking advantage
119 of AnyEvent's workaround for that problem.
120 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
121 a common perl implementation bug on windows.
122 - use unix domain sockets in testsuite to work around
123 common perl implementation bugs on widows (they are emulated by
124 tcp sockets on windows. ugh.)
125
1264.71 Sat May 24 20:01:27 CEST 2008
127 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
128 - take advantage of async name resolution of AnyEvent::Util.
129 - work around brutal inet_aton override in Coro::LWP.
130 - take advantage of the readyhook in Coro::EV, for smoother
131 scheduling.
132
1334.7 Sun May 11 00:32:19 CEST 2008
134 - completely reworked the Coro manpage.
135 - added Coro::AnyEvent, generic event loop integration.
136 - implement cancel, ready and kill commands in Coro::Debug.
137 - document find_coro in Coro::Debug.
138 - incompatible change: rename has_stack to has_cctx.
139 - Coro::AIO and Coro::BDB no longer force event model detection,
140 use AnyEvent::AIO and AnyEvent::BDB.
141
1424.6 Sat Apr 26 10:05:14 CEST 2008
143 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
144 by the Coro module. It was a mistake to have it in the first place.
145 - (experimental) support for activestate perl 5.10 (method "w").
146 - (experimental) support for strawberry perl (method "a").
147 - coro_sigelem_set did not return a value although it had to,
148 actual impact unknown.
149
1504.51 Mon Apr 14 13:28:27 CEST 2008
151 - make it compile again on 5.8.
152
1534.50 Thu Apr 10 09:43:17 CEST 2008
154 - I did it twice! (see 4.49).
155
1564.49 Sun Apr 6 21:23:31 CEST 2008
157 - grr, instead of compiling the recent changes on 5.10 only they
158 were compiled on 5.8 only.
159
1604.48 Sun Apr 6 20:36:46 CEST 2008
161 - allow coroutine switches during eval's under 5.10.x, as it seems
162 the parser is a per-interpreter option now, so this is safe
163 (this might fix the odd crashing bug).
164 - drop support for 5.9.x versions: they are dead, jim.
165
1664.47 Sun Apr 6 00:37:52 CEST 2008
167 - force cctx allocation on API calls: we know we need to force one
168 and gcc actually manages to confuse our heuristic nowadays,
169 leading to crashes and worse.
170 - document force_cctx.
171
1724.46 Fri Apr 4 22:05:43 CEST 2008
173 - upgrade libcoro, resulting in pthread-backend (which was only created
174 to fulfill the rules of the programming languages shootout).
175
1764.45 Thu Mar 13 11:55:36 CET 2008
177 - fix a file leaking bug in eg/mhyttpd that would allow
178 downloading of any file (reported by oesi).
179 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
180 (also add testcase).
181 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
182 apparently having loads of fun with that).
183 - implement $state->swap_defsv, ->swap_defav and document ->throw.
184
1854.4 Wed Feb 13 16:44:29 CET 2008
186 - only assume .cfi pseudo isns exist on GNU/Linux.
187 - add get_timed method to Coro::Channels.
188 - fixed Coro::Debug manpage.
189 - perl 5.11 compatbility improvement based on patch by
190 Andreas König.
191
1924.37 Sun Jan 20 11:25:23 CET 2008
193 - soften the check for an active parser for perl 5.10 (avoiding
194 "Coro::State::transfer called while parsing" in many cases).
195
1964.36 Sun Jan 13 10:53:56 CET 2008
197 - reset diehook when terminating from an async_pool as to not
198 trigger any __DIE__ handlers.
199
2004.35 Sun Jan 13 04:14:13 CET 2008
201 - "bt" debug command now displays any exceptions
202 from longmess and also skips the innermost
203 stackframes, giving more useufl output.
204 - allow backtraces in coroutines blocked in Coro::EV,
205 at a <1% speed hit.
206 - handle localising of $SIG{__WARN__} and __DIE__
207 properly (with a proper amount of dirty hacking).
208
2094.34 Sat Dec 22 17:49:53 CET 2007
210 - upgrade to EV version 2.0 API.
211
2124.33 Mon Dec 17 08:36:12 CET 2007
213 - make Coro::AIO etc. loadable in the absence of EV.
214
2154.32 Mon Dec 17 07:46:02 CET 2007
216 - majorly improved Coro::Handle's performance with Coro::EV.
217 - implemented the until now mythical Coro::BDB module.
218 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
219
2204.31 Wed Dec 5 12:32:39 CET 2007
221 - remove warn statement form Coro::Util.
222
2234.3 Tue Dec 4 20:33:14 CET 2007
224 - calls to the idle function could cause stack corruption
225 when the stack changed.
226 - do no longer rely on the presence of EV::DNS if EV is used
227 (because it is gone), but instead take avdantage of EV::ADNS
228 if available.
229 - add ($) prototypes to all functions in Coro::Storable.
230 - use a conventional (safer) idle callback in Coro::EV.
231 - do accept quickly in Coro::Debug to avoid endless loops.
232
2334.22 Fri Nov 30 16:04:04 CET 2007
234 - really use optimised versions for Event and EV in Coro::Util
235 and Coro::Handle.
236
2374.21 Sun Nov 25 10:48:59 CET 2007
238 - fix a spurious memory read.
239 - Coro::EV no longer keeps the eventloop "alive".
240
2414.2 Fri Nov 9 20:47:05 CET 2007
242 - enable/disable tracing from a new coroutine, not a pooled one.
243 - fix a memleak in Coro::Event.
244 - removed killall call from fork_eval.
245 - made sure store_fd is already loaded so that fork_eval
246 does not have to parse autoload in each subprocess.
247 - only use assembly method if -O switch is in $Config{optimize}.
248 - add (optional) Coro::EV module, so far the best event loop module
249 directly supported by Coro.
250 - if the event model is EV, use EV::DNS to resolve
251 stuff in Coro::Util.
252 - don't get confused by multiple event notifications in Coro::Handle.
253 - initial support for EV (libevent interface).
254 - require Event and EV using configure_requires, to force their existance.
255
2564.13 Wed Oct 24 07:26:45 CEST 2007
257 - add Coro::Storable::blocking_thaw.
258 - use a vastly more complicated technique to localise
259 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
260 - use a coroutine for the idle callback Coro::Event,
261 instead of running Event in the current coroutine context.
262 This also catches recursive invocations.
263 - actually report fork errors in gethostbyname and inet_aton.
264
2654.11 Thu Oct 11 02:40:24 CEST 2007
266 - port to threaded perls.
267
2684.1 Thu Oct 11 02:38:16 CEST 2007
269 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
270 be local to each coro (see Coro::State).
271 - incompatible change: for very deep reasons, cede and cede_notself
272 cannot return anything, so nothing will be returned.
273 - possibly bring back 5.10 compatibility (untested).
274 - work around stupid (and wrong) warning on 5.10 :(.
275 - overlay the saved state over the context stack. This saves
276 a few hundred bytes per coroutine on average and also
277 speeds up context switching a bit.
278 - further tune default stack sizes.
279 - (more) correctly calculate stack usage in coro_rss.
280 - Coro::Storable::blocking_* did not properly lock
281 resulting in races between coroutines.
282 - added Coro::Storable::guard.
283 - stopping to trace a coroutine could destroy the cctx of
284 an unrelated coroutine.
285 - explain the relationship between Perl and C coroutines in
286 more detail in Coro::State.
287 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
288 causing a fork per resolve. This also affected Coro::Socket.
289 - switch to a separate stack in $coro->call/eval to avoid
290 invalidating pointers.
291
2924.03 Sat Oct 6 21:24:00 CEST 2007
293 - added Coro::throw method.
294 - minor code cleanups.
295
2964.02 Sat Oct 6 02:36:47 CEST 2007
297 - fix a very minor per-coroutine memleak (a single codereference).
298 - fixed a bug where the currently in-use c context would be freed
299 prematurely (can happen only when programs change the stacksize
300 or use tracing).
301 - tracing can no longer keep a coro alive after it terminated.
302 - do static branch prediction in the common path for gcc. gives
303 about 2-5% speed improvement here.
304
3054.01 Fri Oct 5 22:10:49 CEST 2007
306 - instead of recreating *a* standard output handle we simply
307 use STDOUT, which is faster and hopefully more robust.
308
3094.0 Fri Oct 5 12:56:00 CEST 2007
310 - incompatibly changed Coro::Storable::freeze.
311 - major new feature: added Coro::Debug, for interactive coroutine
312 debugging, tracing and much more.
313 - major bug fix: unbelievable, but true: $_, $/ and many other
314 "saved" variables actually weren't being saved. This has been fixed,
315 of course, while increasing performance while losing all the save
316 flags.
317 - save flags are gone, and all the api functions dealing with them.
318 - added Coro::Semaphore::adjust.
319 - added Coro::Util::fork_eval.
320 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
321 - added Coro::killall.
322 - reduce initial stack sizes to allow for "micro-coroutines".
323 - better async_pool resource management, moved parts of async_pool
324 handling to XS (major speed improvement).
325 - actually croak before modifying important data structures.
326 - refuse to transfer while compiling.
327 - possibly support eval EXPR better now.
328 - enable assembly per default on linux+bsd x86+amd64.
329 - all internal members were renamed _something for easier subclassing.
330 - many minor tweaks.
331
3323.63 Wed May 16 14:10:06 CEST 2007
333 - implement handcoded assembly for x86/amd64 SVR ABI.
334
3353.62 Fri Apr 27 21:36:06 CEST 2007
336 - upgrade libcoro (which might set unwind info correctly).
337 - change default on linux to setjmp/longjmp.
338
3393.61 Thu Apr 19 12:36:18 CEST 2007
340 - Coro::Storable caused an endless loop when thawing invalid
341 pst's sometimes.
342 - use a Semaphore in Coro::Storable, as Storable doesn't
343 seem to be reentrant (although it is documented to
344 be threadsafe...).
345 - fix Coro::Signal to bring back the original unreliable
346 but stateful semantics.
347 - fixed a lot of typos in Coro.pm (patch submitted by David
348 Steinbrunner, which applied flawlessly).
349
3503.6 Sat Apr 14 17:13:31 CEST 2007
351 - added some bugfixes to get eg/myhttpd working again.
352 - added Coro::Storable for often-cede'ing freeze/thaw.
353 - try to do a clean exit when a coroutine calls exit
354 (EXPERIMENTAL).
355 - got rid of indirect call through _coro_init.
356 - updated the partly antique examples in eg/ to
357 work again and be a bit less magic, too.
358 - fixed Coro::Signal semantics to work as documented again.
359
3603.55 Sun Mar 25 01:20:47 CET 2007
361 - add SAVE_DEFFH to save the default filehandle and enable
362 it by default.
363 - finally move socket-operations from Coro::Socket to Coro::Handle
364 to be able to unblock foreign sockets.
365 - add Coro::State::save_also and guarded_save.
366 - add count accessor to Coro::Semaphore.
367 - add Coro::State::cctx_stacksize.
368 - just for the fun of it, do not rely on implicit context,
369 which can dramatically improve performance, but people
370 using windows-process-emulation perls do not care much about
371 performance.
372
3733.51 Sun Mar 4 14:18:04 CET 2007
374 - fixed a problem when you weakened references to Coro::State's
375 (patch by Yuval Kogman).
376
3773.501 Wed Feb 28 12:44:07 CET 2007
378 - rename some global symbols as macosx from hell redefines
379 them without asking.
380
3813.5 Tue Feb 13 20:22:53 CET 2007
382 - do AnyEvent model detection earlier, avoiding problems
383 caused by first using AnyEvent and later Coro::Event.
384 - implement and document Coro::Event event objects.
385 - fix a potential problem in Coro::Event causing crashes.
386 - initialise PL_comppad when creating a new coroutine,
387 avoids crashes on early coro destruction.
388
3893.41 Mon Jan 22 19:19:49 CET 2007
390 - readline on Coro::Handle did not support undefined $/,
391 nor did it deliver partial lines on EOF or error.
392 - implement malloc fallback for stack allocation because
393 stupid broken idiotic OSX has a stupid broken
394 idiotic fits-the-whole-os mmap "implementation" and
395 my dick feels longer if Coro is portable even to
396 obsolete platforms.
397
3983.4 Fri Jan 19 21:52:54 CET 2007
399 - remove t/09_timer.t, as it isn't really testing much
400 but was rather flaky in practise.
401 - async_pool coro would keep arguments and callback alive until
402 it was reused.
403 - cancellation of a coroutine could cause spurious idle calls
404 in cede_notself.
405
4063.3 Sat Jan 6 03:45:00 CET 2007
407 - implement $coro->on_destroy.
408 - Coro::Event blocking semantics have been changed,
409 documented and - hopefully - improved.
7 - fix nice adding, not subtracting, from priority. 410 - fix nice adding, not subtracting, from priority.
8 - fix ->prio and api_is_ready (patch by Mark Hinds). 411 - fix ->prio and api_is_ready (patch by Mark Hinds).
412 - fixed an assert ("... == prev__cctx->idle_te")
413 that could errronously trigger.
414 - fix various large and small memleaks.
415 - use a (hopefully) more stable cancel implementation
416 that immediately frees the coroutine data.
417 - cede/cede_notself return a status now.
418 - added Coro::guard function.
419 - added a global coroutine pool for jobs (on my machine,
420 I can create and execute 48k simple coros/s with async,
421 and 128k coros with async_pool).
422 - Coro::AIO now uses the coroutine priority as io priority.
9 423
103.2 Fri Dec 22 05:07:09 CET 2006 4243.2 Fri Dec 22 05:07:09 CET 2006
11 - improve portability to slightly older perls. 425 - improve portability to slightly older perls.
12 - use cleaner coroutine destruction. 426 - use cleaner coroutine destruction.
13 - simplify configuration for users. 427 - simplify configuration for users.

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