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Comparing Coro/Changes (file contents):
Revision 1.212 by root, Mon Mar 12 21:40:14 2007 UTC vs.
Revision 1.405 by root, Wed Nov 12 23:24:40 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: destroy gets only called on cancel: fix(?) 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)).
5 7
63.52 8 - minor cleanups.
9 - use much larger stacks on linux and perl < 5.8.8.
10
114.911 Tue Nov 11 04:26:17 CET 2008
12 - "port" to threaded perls.
13
144.91 Mon Nov 10 05:36:38 CET 2008
15 - the ->throw exception object no longer leaks.
16 - creating a new cctx leaked a scopestack entry (memleak).
17 - new coroutines didn't get created with a zero flags field
18 (unknown impact).
19 - calling ->throw on a not-yet-started coroutine should now work
20 instead of being ignored.
21 - ->throw is now supported on Coro::State objects.
22 - clean up cctx creation code a bit.
23 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
24
254.9 Sat Nov 8 17:45:27 CET 2008
26 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
27 - (libcoro) no longer leak threads in the experimental pthread backend,
28 also speed it up considerably.
29 - (libcoro) do not rely on makecontext passing void *'s unscathed.
30 - fix compiletime dependencies on libcoro in the Makefile.
31 - cctx_count wasn't always updated properly.
32 - Coro::State::cctx_stacksize wasn't applied correctly.
33 - new function Coro::State::cctx_max_idle.
34 - the default max number of idle C contexts is now 4.
35 - (libcoro) try harder to get _setjmp/_longjmp.
36 - (libcoro) cleanup and extend the libcoro API to officially
37 allow the creation of empty source contexts.
38 - very experimental workaround for the totally broken netbsd platform.
39 - tried to hack around openbsd bugs.
40
414.804 Wed Nov 5 16:36:00 CET 2008
42 - Coro::Debug::new_unix_server would not create a non-blocking listening
43 socket, sometimes causing freezes.
44 - (libcoro) fix misaligned stack points for setjmp and assembly
45 methods, which can cause crashes on x86/x86_64 with a sufficiently
46 aggressive compiler.
47 - new function: Coro::Debug::new_tcp_server.
48 - move ->throw into the Coro class because it only works on coro objects.
49
504.803 Mon Nov 3 17:16:12 CET 2008
51 - (libcoro) use a global asm statement to become independent of gcc
52 otpimisations for CORO_ASM (thanks to pippijn for the idea).
53 - try to workaround yet another broken bsd, this time dragonfly.
54
554.802 Thu Oct 30 10:56:12 CET 2008
56 - support -fno-omit-frame-pointer on x86 with the assembly method.
57 - tune 01_unblock.t tests a bit.
58
594.801 Wed Oct 22 18:33:37 CEST 2008
60 - improve readline speed for very long "lines".
61 - backport to 5.8.8.
62
634.8 Thu Oct 2 13:34:40 CEST 2008
64 - new function Coro::AIO::aio_wait.
65 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
66 - greatly speed up and reduce memory usage of Coro::AIO requests.
67 - implement some other µ-optimisations.
68
694.749 Mon Sep 29 14:40:12 CEST 2008
70 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
71
724.748 Sat Sep 27 14:03:19 CEST 2008
73 - implement, but do not document, PerlIO::cede(granularity).
74 - Coro::Storable forgot to wrap Storable::pstore.
75 - work around the multitude of leaks and memory corruption
76 bugs in PerlIO::via by using our own C-level perliol. As a side
77 effect, Coro::Storable is now much, much, much faster.
78
794.747 Tue Sep 23 01:59:41 CEST 2008
80 - fix a per-cv memleak (one empty array was leaked per
81 code reference).
82 - avoid a crash in coro->call|rss when the coroutine was already
83 destroyed (most noticably when using Coro::Debug::ps :)
84 - also protect *Storable::FILE.
85 - push up default storable granularity to 20ms.
86
874.746 Sun Sep 21 03:22:20 CEST 2008
88 - be more insistent on locking Storable against reentrancy
89 in Coro::Storable.
90 - move swap_def?v and throw to Coro::State, as documented.
91
924.745 Thu Jul 24 00:14:38 CEST 2008
93 - remove debugging code related to MgPV_nolen_const, also try to
94 make it compile with perl 5.8.6 (yes, apple apparently loves
95 outdated software). Reported by John S.
96
974.744 Tue Jul 8 22:06:35 CEST 2008
98 - correctly provide default DIE/WARN handlers as documented.
99 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
100 implementations inside perl work fine for us.
101
1024.743 Mon Jun 16 00:21:57 CEST 2008
103 - when using Coro::EV without running EV::loop it could
104 result in busy-waiting for events, this has been fixed.
105 - reduce codesize and improve performance by using EV_DEFAULT_UC.
106
1074.742 Sat May 31 14:10:21 CEST 2008
108 - implement a workaround for (some) perl <5.8.8 versions.
109 - require EV 3.3+.
110
1114.741 Fri May 30 23:33:09 CEST 2008
112 - tell netbsd how utterly broken their imitation of an OS is
113 and refuse to build by default if pthreads are in use.
114 - switch to "s" method on all bsd's by default, as their ucontext
115 stuff seems just too broken.
116 - fix a bug in Coro::Select.
117
1184.74 Thu May 29 20:05:31 CEST 2008
119 - do not test Coro::LWP for lack of dependencies.
120 - do not test Coro::Select for lack of working perls.
121
1224.73 Thu May 29 2008
123 - fix a bug in Coro::EV which would cause it to block despite
124 there being runnable coroutines.
125 - sprinkle "no warnings" freely over everything, also suppress
126 warnings for some other modules.
127 - fix typo in WSAEWOULDBLOCK.
128
1294.72 Sun May 25 05:14:36 CEST 2008
130 - tweak META.yaml a bit, unfortunately, there is no documented way
131 to have optional dependencies with CPAN. doh :(
132 - avoid running some tests on windows because they would fail due to
133 perl bug (broken fork, broken pipes...).
134 - work around perl on windows bugs where perl returns undocumented
135 error codes for sysread, syswrite etc. by taking advantage
136 of AnyEvent's workaround for that problem.
137 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
138 a common perl implementation bug on windows.
139 - use unix domain sockets in testsuite to work around
140 common perl implementation bugs on widows (they are emulated by
141 tcp sockets on windows. ugh.)
142
1434.71 Sat May 24 20:01:27 CEST 2008
144 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
145 - take advantage of async name resolution of AnyEvent::Util.
146 - work around brutal inet_aton override in Coro::LWP.
147 - take advantage of the readyhook in Coro::EV, for smoother
148 scheduling.
149
1504.7 Sun May 11 00:32:19 CEST 2008
151 - completely reworked the Coro manpage.
152 - added Coro::AnyEvent, generic event loop integration.
153 - implement cancel, ready and kill commands in Coro::Debug.
154 - document find_coro in Coro::Debug.
155 - incompatible change: rename has_stack to has_cctx.
156 - Coro::AIO and Coro::BDB no longer force event model detection,
157 use AnyEvent::AIO and AnyEvent::BDB.
158
1594.6 Sat Apr 26 10:05:14 CEST 2008
160 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
161 by the Coro module. It was a mistake to have it in the first place.
162 - (experimental) support for activestate perl 5.10 (method "w").
163 - (experimental) support for strawberry perl (method "a").
164 - coro_sigelem_set did not return a value although it had to,
165 actual impact unknown.
166
1674.51 Mon Apr 14 13:28:27 CEST 2008
168 - make it compile again on 5.8.
169
1704.50 Thu Apr 10 09:43:17 CEST 2008
171 - I did it twice! (see 4.49).
172
1734.49 Sun Apr 6 21:23:31 CEST 2008
174 - grr, instead of compiling the recent changes on 5.10 only they
175 were compiled on 5.8 only.
176
1774.48 Sun Apr 6 20:36:46 CEST 2008
178 - allow coroutine switches during eval's under 5.10.x, as it seems
179 the parser is a per-interpreter option now, so this is safe
180 (this might fix the odd crashing bug).
181 - drop support for 5.9.x versions: they are dead, jim.
182
1834.47 Sun Apr 6 00:37:52 CEST 2008
184 - force cctx allocation on API calls: we know we need to force one
185 and gcc actually manages to confuse our heuristic nowadays,
186 leading to crashes and worse.
187 - document force_cctx.
188
1894.46 Fri Apr 4 22:05:43 CEST 2008
190 - upgrade libcoro, resulting in pthread-backend (which was only created
191 to fulfill the rules of the programming languages shootout).
192
1934.45 Thu Mar 13 11:55:36 CET 2008
194 - fix a file leaking bug in eg/mhyttpd that would allow
195 downloading of any file (reported by oesi).
196 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
197 (also add testcase).
198 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
199 apparently having loads of fun with that).
200 - implement $state->swap_defsv, ->swap_defav and document ->throw.
201
2024.4 Wed Feb 13 16:44:29 CET 2008
203 - only assume .cfi pseudo isns exist on GNU/Linux.
204 - add get_timed method to Coro::Channels.
205 - fixed Coro::Debug manpage.
206 - perl 5.11 compatbility improvement based on patch by
207 Andreas König.
208
2094.37 Sun Jan 20 11:25:23 CET 2008
210 - soften the check for an active parser for perl 5.10 (avoiding
211 "Coro::State::transfer called while parsing" in many cases).
212
2134.36 Sun Jan 13 10:53:56 CET 2008
214 - reset diehook when terminating from an async_pool as to not
215 trigger any __DIE__ handlers.
216
2174.35 Sun Jan 13 04:14:13 CET 2008
218 - "bt" debug command now displays any exceptions
219 from longmess and also skips the innermost
220 stackframes, giving more useufl output.
221 - allow backtraces in coroutines blocked in Coro::EV,
222 at a <1% speed hit.
223 - handle localising of $SIG{__WARN__} and __DIE__
224 properly (with a proper amount of dirty hacking).
225
2264.34 Sat Dec 22 17:49:53 CET 2007
227 - upgrade to EV version 2.0 API.
228
2294.33 Mon Dec 17 08:36:12 CET 2007
230 - make Coro::AIO etc. loadable in the absence of EV.
231
2324.32 Mon Dec 17 07:46:02 CET 2007
233 - majorly improved Coro::Handle's performance with Coro::EV.
234 - implemented the until now mythical Coro::BDB module.
235 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
236
2374.31 Wed Dec 5 12:32:39 CET 2007
238 - remove warn statement form Coro::Util.
239
2404.3 Tue Dec 4 20:33:14 CET 2007
241 - calls to the idle function could cause stack corruption
242 when the stack changed.
243 - do no longer rely on the presence of EV::DNS if EV is used
244 (because it is gone), but instead take avdantage of EV::ADNS
245 if available.
246 - add ($) prototypes to all functions in Coro::Storable.
247 - use a conventional (safer) idle callback in Coro::EV.
248 - do accept quickly in Coro::Debug to avoid endless loops.
249
2504.22 Fri Nov 30 16:04:04 CET 2007
251 - really use optimised versions for Event and EV in Coro::Util
252 and Coro::Handle.
253
2544.21 Sun Nov 25 10:48:59 CET 2007
255 - fix a spurious memory read.
256 - Coro::EV no longer keeps the eventloop "alive".
257
2584.2 Fri Nov 9 20:47:05 CET 2007
259 - enable/disable tracing from a new coroutine, not a pooled one.
260 - fix a memleak in Coro::Event.
261 - removed killall call from fork_eval.
262 - made sure store_fd is already loaded so that fork_eval
263 does not have to parse autoload in each subprocess.
264 - only use assembly method if -O switch is in $Config{optimize}.
265 - add (optional) Coro::EV module, so far the best event loop module
266 directly supported by Coro.
267 - if the event model is EV, use EV::DNS to resolve
268 stuff in Coro::Util.
269 - don't get confused by multiple event notifications in Coro::Handle.
270 - initial support for EV (libevent interface).
271 - require Event and EV using configure_requires, to force their existance.
272
2734.13 Wed Oct 24 07:26:45 CEST 2007
274 - add Coro::Storable::blocking_thaw.
275 - use a vastly more complicated technique to localise
276 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
277 - use a coroutine for the idle callback Coro::Event,
278 instead of running Event in the current coroutine context.
279 This also catches recursive invocations.
280 - actually report fork errors in gethostbyname and inet_aton.
281
2824.11 Thu Oct 11 02:40:24 CEST 2007
283 - port to threaded perls.
284
2854.1 Thu Oct 11 02:38:16 CEST 2007
286 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
287 be local to each coro (see Coro::State).
288 - incompatible change: for very deep reasons, cede and cede_notself
289 cannot return anything, so nothing will be returned.
290 - possibly bring back 5.10 compatibility (untested).
291 - work around stupid (and wrong) warning on 5.10 :(.
292 - overlay the saved state over the context stack. This saves
293 a few hundred bytes per coroutine on average and also
294 speeds up context switching a bit.
295 - further tune default stack sizes.
296 - (more) correctly calculate stack usage in coro_rss.
297 - Coro::Storable::blocking_* did not properly lock
298 resulting in races between coroutines.
299 - added Coro::Storable::guard.
300 - stopping to trace a coroutine could destroy the cctx of
301 an unrelated coroutine.
302 - explain the relationship between Perl and C coroutines in
303 more detail in Coro::State.
304 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
305 causing a fork per resolve. This also affected Coro::Socket.
306 - switch to a separate stack in $coro->call/eval to avoid
307 invalidating pointers.
308
3094.03 Sat Oct 6 21:24:00 CEST 2007
310 - added Coro::throw method.
311 - minor code cleanups.
312
3134.02 Sat Oct 6 02:36:47 CEST 2007
314 - fix a very minor per-coroutine memleak (a single codereference).
315 - fixed a bug where the currently in-use c context would be freed
316 prematurely (can happen only when programs change the stacksize
317 or use tracing).
318 - tracing can no longer keep a coro alive after it terminated.
319 - do static branch prediction in the common path for gcc. gives
320 about 2-5% speed improvement here.
321
3224.01 Fri Oct 5 22:10:49 CEST 2007
323 - instead of recreating *a* standard output handle we simply
324 use STDOUT, which is faster and hopefully more robust.
325
3264.0 Fri Oct 5 12:56:00 CEST 2007
327 - incompatibly changed Coro::Storable::freeze.
328 - major new feature: added Coro::Debug, for interactive coroutine
329 debugging, tracing and much more.
330 - major bug fix: unbelievable, but true: $_, $/ and many other
331 "saved" variables actually weren't being saved. This has been fixed,
332 of course, while increasing performance while losing all the save
333 flags.
334 - save flags are gone, and all the api functions dealing with them.
335 - added Coro::Semaphore::adjust.
336 - added Coro::Util::fork_eval.
337 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
338 - added Coro::killall.
339 - reduce initial stack sizes to allow for "micro-coroutines".
340 - better async_pool resource management, moved parts of async_pool
341 handling to XS (major speed improvement).
342 - actually croak before modifying important data structures.
343 - refuse to transfer while compiling.
344 - possibly support eval EXPR better now.
345 - enable assembly per default on linux+bsd x86+amd64.
346 - all internal members were renamed _something for easier subclassing.
347 - many minor tweaks.
348
3493.63 Wed May 16 14:10:06 CEST 2007
350 - implement handcoded assembly for x86/amd64 SVR ABI.
351
3523.62 Fri Apr 27 21:36:06 CEST 2007
353 - upgrade libcoro (which might set unwind info correctly).
354 - change default on linux to setjmp/longjmp.
355
3563.61 Thu Apr 19 12:36:18 CEST 2007
357 - Coro::Storable caused an endless loop when thawing invalid
358 pst's sometimes.
359 - use a Semaphore in Coro::Storable, as Storable doesn't
360 seem to be reentrant (although it is documented to
361 be threadsafe...).
362 - fix Coro::Signal to bring back the original unreliable
363 but stateful semantics.
364 - fixed a lot of typos in Coro.pm (patch submitted by David
365 Steinbrunner, which applied flawlessly).
366
3673.6 Sat Apr 14 17:13:31 CEST 2007
368 - added some bugfixes to get eg/myhttpd working again.
369 - added Coro::Storable for often-cede'ing freeze/thaw.
370 - try to do a clean exit when a coroutine calls exit
371 (EXPERIMENTAL).
372 - got rid of indirect call through _coro_init.
373 - updated the partly antique examples in eg/ to
374 work again and be a bit less magic, too.
375 - fixed Coro::Signal semantics to work as documented again.
376
3773.55 Sun Mar 25 01:20:47 CET 2007
378 - add SAVE_DEFFH to save the default filehandle and enable
379 it by default.
380 - finally move socket-operations from Coro::Socket to Coro::Handle
381 to be able to unblock foreign sockets.
382 - add Coro::State::save_also and guarded_save.
7 - add count accessor to Coro::Semaphore. 383 - add count accessor to Coro::Semaphore.
8 - add Coro::State::cctx_stacksize. 384 - add Coro::State::cctx_stacksize.
385 - just for the fun of it, do not rely on implicit context,
386 which can dramatically improve performance, but people
387 using windows-process-emulation perls do not care much about
388 performance.
9 389
103.51 Sun Mar 4 14:18:04 CET 2007 3903.51 Sun Mar 4 14:18:04 CET 2007
11 - fixed a problem when you weakened references to Coro::State's 391 - fixed a problem when you weakened references to Coro::State's
12 (patch by Yuval Kogman). 392 (patch by Yuval Kogman).
13 393

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