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Comparing Coro/Changes (file contents):
Revision 1.271 by root, Tue Oct 9 22:29:26 2007 UTC vs.
Revision 1.447 by root, Thu Nov 20 06:32:55 2008 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO. 3TODO: should explore PerlIO::coroaio (perl leaks like hell).
4TODO: maybe implement a default message channel, very much like Erlang 4TODO: maybe implement a default message channel, very much like Erlang's
5 (which is cool in a lot of important aspects (failures!), 5 actor model (which is cool in a lot of important aspects (failures!),
6 but very lacking in others (higher level ipc)). 6 but very lacking in others (higher level ipc)).
7 7
84.1 8TODO: async_pool to SLF
9TODO: _cancel to xs
105.0
11 - NEW ARCHITECTURE: use the latest 4.x version if you experience
12 stability issues.
13 - bump API version to 7 - all dependents must be recompiled.
14 - removed timed_* functions - they were not being used anyways
15 and should be replaced by a more generic mechanism -
16 and were annoying to support anyways :)
17 - removed SemaphoreSet's waiter method - use sem instead.
18 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
19 - async_pool did free a scalar value twice
20 ("Attempt to unreference...").
21 - fix a disastrous bug in the readline optimisation
22 introduced in 4.801.
23 - fix a longstanding bug where calling terminate on a coro that
24 was waiting for a semaphore that was just becoming available
25 would cause a deadlock (semaphore would get into a state where
26 it was available but waiters were still blocked).
27 - calling throw on a coroutine that is waiting for a semaphore will
28 no longer make it acquire the semaphore (and thus leak a count).
29 - perl's process emulation is now not even theoretically supported
30 anymore.
31 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
32 conversion of callback-style to blocking-style.
33 - new methods $coro->schedule_to and ->cede_to, to specifically
34 schedule or cede to a specific coroutine.
35 - new function Coro::Semaphore::wait.
36 - use named constants in Coro::Channel (Richard Hundt).
37 - directly patch the entersub opcode calling SLF functions (cede,
38 transfer and so on). this does speed up context switching, but
39 more importanly, it frees us from the hardcoded behaviour of
40 entersub, so we might actually be able to return something from
41 those functions and atcually create new ones.
42 - take advantage of __builtin_frame_address on gcc.
43 - expose THX in coroapi (not sure whether this was a wise decision,
44 as "threaded" perls are running at half speed anyways).
45 - implement execute_slf (schedule-like-function) interface that makes
46 it possible to implement schedule-like-functions in XS.
47 - use new SLF interface to massively speed up Coro::EV by roughly a
48 factor of two.
49 - used new SLF interface to massively speed up Coro::Semaphore by a
50 factor of three.
51 - used new SLF interface to speed up Coro::AIO by roughly a factor of
52 four and reduce its memory usage considerably.
53 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
54 for a nice speedup and vastly more correct behaviour. Also implement
55 a new method "sem" to get at the underlying semaphore object.
56 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
57 (in comparison) 20-40% speedup.
58 - used new SLF interface to reimplement Coro::Signal gaining
59 some unknown (because I was too lazy), but certain, speedup, and also
60 making signals reliable for the first time.
61 - used new SLF interface and other optimisations to speed up async_pool
62 by a factor of two. It also doesn't rely on perl's exception mechanism
63 to exit anymore. The overhead for terminating an async_pool, coro over
64 a normal async is now very small.
65 - sped up coroutine creation/destruction by 40%.
66 - forgot to include Coro/libcoro/README in the dist for all these years.
67 - work around a freebsd pthreads bug (manual testcancel is required as
68 pthread_cond_wait isn't a cancellation point on freebsd).
69 - use new rouse functions to speed up and simplify Coro::BDB.
70 - make "prefer perl native functions" work with threaded perls.
71 - condense Coro::Debug ps output, hint at v and w flags.
72 - (libcoro) lots of minor cleanups and portability improvements.
73
744.913 Sat Nov 15 07:58:28 CET 2008
75 - async_pool did free a scalar value twice
76 ("Attempt to unreference...").
77
784.912 Thu Nov 13 18:31:23 CET 2008
79 - minor cleanups.
80 - use much larger stacks on linux and perl < 5.8.8.
81 - Coro::Debug::new_unix_server did not unlink the socket
82 when destroyed.
83
844.911 Tue Nov 11 04:26:17 CET 2008
85 - "port" to threaded perls.
86
874.91 Mon Nov 10 05:36:38 CET 2008
88 - the ->throw exception object no longer leaks.
89 - creating a new cctx leaked a scopestack entry (memleak).
90 - new coroutines didn't get created with a zero flags field
91 (unknown impact).
92 - calling ->throw on a not-yet-started coroutine should now work
93 instead of being ignored.
94 - ->throw is now supported on Coro::State objects.
95 - clean up cctx creation code a bit.
96 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
97
984.9 Sat Nov 8 17:45:27 CET 2008
99 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
100 - (libcoro) no longer leak threads in the experimental pthread backend,
101 also speed it up considerably.
102 - (libcoro) do not rely on makecontext passing void *'s unscathed.
103 - fix compiletime dependencies on libcoro in the Makefile.
104 - cctx_count wasn't always updated properly.
105 - Coro::State::cctx_stacksize wasn't applied correctly.
106 - new function Coro::State::cctx_max_idle.
107 - the default max number of idle C contexts is now 4.
108 - (libcoro) try harder to get _setjmp/_longjmp.
109 - (libcoro) cleanup and extend the libcoro API to officially
110 allow the creation of empty source contexts.
111 - very experimental workaround for the totally broken netbsd platform.
112 - tried to hack around openbsd bugs.
113
1144.804 Wed Nov 5 16:36:00 CET 2008
115 - Coro::Debug::new_unix_server would not create a non-blocking listening
116 socket, sometimes causing freezes.
117 - (libcoro) fix misaligned stack points for setjmp and assembly
118 methods, which can cause crashes on x86/x86_64 with a sufficiently
119 aggressive compiler.
120 - new function: Coro::Debug::new_tcp_server.
121 - move ->throw into the Coro class because it only works on coro objects.
122
1234.803 Mon Nov 3 17:16:12 CET 2008
124 - (libcoro) use a global asm statement to become independent of gcc
125 otpimisations for CORO_ASM (thanks to pippijn for the idea).
126 - try to workaround yet another broken bsd, this time dragonfly.
127
1284.802 Thu Oct 30 10:56:12 CET 2008
129 - support -fno-omit-frame-pointer on x86 with the assembly method.
130 - tune 01_unblock.t tests a bit.
131
1324.801 Wed Oct 22 18:33:37 CEST 2008
133 - improve readline speed for very long "lines".
134 - backport to 5.8.8.
135
1364.8 Thu Oct 2 13:34:40 CEST 2008
137 - new function Coro::AIO::aio_wait.
138 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
139 - greatly speed up and reduce memory usage of Coro::AIO requests.
140 - implement some other µ-optimisations.
141
1424.749 Mon Sep 29 14:40:12 CEST 2008
143 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
144
1454.748 Sat Sep 27 14:03:19 CEST 2008
146 - implement, but do not document, PerlIO::cede(granularity).
147 - Coro::Storable forgot to wrap Storable::pstore.
148 - work around the multitude of leaks and memory corruption
149 bugs in PerlIO::via by using our own C-level perliol. As a side
150 effect, Coro::Storable is now much, much, much faster.
151
1524.747 Tue Sep 23 01:59:41 CEST 2008
153 - fix a per-cv memleak (one empty array was leaked per
154 code reference).
155 - avoid a crash in coro->call|rss when the coroutine was already
156 destroyed (most noticably when using Coro::Debug::ps :)
157 - also protect *Storable::FILE.
158 - push up default storable granularity to 20ms.
159
1604.746 Sun Sep 21 03:22:20 CEST 2008
161 - be more insistent on locking Storable against reentrancy
162 in Coro::Storable.
163 - move swap_def?v and throw to Coro::State, as documented.
164
1654.745 Thu Jul 24 00:14:38 CEST 2008
166 - remove debugging code related to MgPV_nolen_const, also try to
167 make it compile with perl 5.8.6 (yes, apple apparently loves
168 outdated software). Reported by John S.
169
1704.744 Tue Jul 8 22:06:35 CEST 2008
171 - correctly provide default DIE/WARN handlers as documented.
172 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
173 implementations inside perl work fine for us.
174
1754.743 Mon Jun 16 00:21:57 CEST 2008
176 - when using Coro::EV without running EV::loop it could
177 result in busy-waiting for events, this has been fixed.
178 - reduce codesize and improve performance by using EV_DEFAULT_UC.
179
1804.742 Sat May 31 14:10:21 CEST 2008
181 - implement a workaround for (some) perl <5.8.8 versions.
182 - require EV 3.3+.
183
1844.741 Fri May 30 23:33:09 CEST 2008
185 - tell netbsd how utterly broken their imitation of an OS is
186 and refuse to build by default if pthreads are in use.
187 - switch to "s" method on all bsd's by default, as their ucontext
188 stuff seems just too broken.
189 - fix a bug in Coro::Select.
190
1914.74 Thu May 29 20:05:31 CEST 2008
192 - do not test Coro::LWP for lack of dependencies.
193 - do not test Coro::Select for lack of working perls.
194
1954.73 Thu May 29 2008
196 - fix a bug in Coro::EV which would cause it to block despite
197 there being runnable coroutines.
198 - sprinkle "no warnings" freely over everything, also suppress
199 warnings for some other modules.
200 - fix typo in WSAEWOULDBLOCK.
201
2024.72 Sun May 25 05:14:36 CEST 2008
203 - tweak META.yaml a bit, unfortunately, there is no documented way
204 to have optional dependencies with CPAN. doh :(
205 - avoid running some tests on windows because they would fail due to
206 perl bug (broken fork, broken pipes...).
207 - work around perl on windows bugs where perl returns undocumented
208 error codes for sysread, syswrite etc. by taking advantage
209 of AnyEvent's workaround for that problem.
210 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
211 a common perl implementation bug on windows.
212 - use unix domain sockets in testsuite to work around
213 common perl implementation bugs on widows (they are emulated by
214 tcp sockets on windows. ugh.)
215
2164.71 Sat May 24 20:01:27 CEST 2008
217 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
218 - take advantage of async name resolution of AnyEvent::Util.
219 - work around brutal inet_aton override in Coro::LWP.
220 - take advantage of the readyhook in Coro::EV, for smoother
221 scheduling.
222
2234.7 Sun May 11 00:32:19 CEST 2008
224 - completely reworked the Coro manpage.
225 - added Coro::AnyEvent, generic event loop integration.
226 - implement cancel, ready and kill commands in Coro::Debug.
227 - document find_coro in Coro::Debug.
228 - incompatible change: rename has_stack to has_cctx.
229 - Coro::AIO and Coro::BDB no longer force event model detection,
230 use AnyEvent::AIO and AnyEvent::BDB.
231
2324.6 Sat Apr 26 10:05:14 CEST 2008
233 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
234 by the Coro module. It was a mistake to have it in the first place.
235 - (experimental) support for activestate perl 5.10 (method "w").
236 - (experimental) support for strawberry perl (method "a").
237 - coro_sigelem_set did not return a value although it had to,
238 actual impact unknown.
239
2404.51 Mon Apr 14 13:28:27 CEST 2008
241 - make it compile again on 5.8.
242
2434.50 Thu Apr 10 09:43:17 CEST 2008
244 - I did it twice! (see 4.49).
245
2464.49 Sun Apr 6 21:23:31 CEST 2008
247 - grr, instead of compiling the recent changes on 5.10 only they
248 were compiled on 5.8 only.
249
2504.48 Sun Apr 6 20:36:46 CEST 2008
251 - allow coroutine switches during eval's under 5.10.x, as it seems
252 the parser is a per-interpreter option now, so this is safe
253 (this might fix the odd crashing bug).
254 - drop support for 5.9.x versions: they are dead, jim.
255
2564.47 Sun Apr 6 00:37:52 CEST 2008
257 - force cctx allocation on API calls: we know we need to force one
258 and gcc actually manages to confuse our heuristic nowadays,
259 leading to crashes and worse.
260 - document force_cctx.
261
2624.46 Fri Apr 4 22:05:43 CEST 2008
263 - upgrade libcoro, resulting in pthread-backend (which was only created
264 to fulfill the rules of the programming languages shootout).
265
2664.45 Thu Mar 13 11:55:36 CET 2008
267 - fix a file leaking bug in eg/mhyttpd that would allow
268 downloading of any file (reported by oesi).
269 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
270 (also add testcase).
271 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
272 apparently having loads of fun with that).
273 - implement $state->swap_defsv, ->swap_defav and document ->throw.
274
2754.4 Wed Feb 13 16:44:29 CET 2008
276 - only assume .cfi pseudo isns exist on GNU/Linux.
277 - add get_timed method to Coro::Channels.
278 - fixed Coro::Debug manpage.
279 - perl 5.11 compatbility improvement based on patch by
280 Andreas König.
281
2824.37 Sun Jan 20 11:25:23 CET 2008
283 - soften the check for an active parser for perl 5.10 (avoiding
284 "Coro::State::transfer called while parsing" in many cases).
285
2864.36 Sun Jan 13 10:53:56 CET 2008
287 - reset diehook when terminating from an async_pool as to not
288 trigger any __DIE__ handlers.
289
2904.35 Sun Jan 13 04:14:13 CET 2008
291 - "bt" debug command now displays any exceptions
292 from longmess and also skips the innermost
293 stackframes, giving more useufl output.
294 - allow backtraces in coroutines blocked in Coro::EV,
295 at a <1% speed hit.
296 - handle localising of $SIG{__WARN__} and __DIE__
297 properly (with a proper amount of dirty hacking).
298
2994.34 Sat Dec 22 17:49:53 CET 2007
300 - upgrade to EV version 2.0 API.
301
3024.33 Mon Dec 17 08:36:12 CET 2007
303 - make Coro::AIO etc. loadable in the absence of EV.
304
3054.32 Mon Dec 17 07:46:02 CET 2007
306 - majorly improved Coro::Handle's performance with Coro::EV.
307 - implemented the until now mythical Coro::BDB module.
308 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
309
3104.31 Wed Dec 5 12:32:39 CET 2007
311 - remove warn statement form Coro::Util.
312
3134.3 Tue Dec 4 20:33:14 CET 2007
314 - calls to the idle function could cause stack corruption
315 when the stack changed.
316 - do no longer rely on the presence of EV::DNS if EV is used
317 (because it is gone), but instead take avdantage of EV::ADNS
318 if available.
319 - add ($) prototypes to all functions in Coro::Storable.
320 - use a conventional (safer) idle callback in Coro::EV.
321 - do accept quickly in Coro::Debug to avoid endless loops.
322
3234.22 Fri Nov 30 16:04:04 CET 2007
324 - really use optimised versions for Event and EV in Coro::Util
325 and Coro::Handle.
326
3274.21 Sun Nov 25 10:48:59 CET 2007
328 - fix a spurious memory read.
329 - Coro::EV no longer keeps the eventloop "alive".
330
3314.2 Fri Nov 9 20:47:05 CET 2007
332 - enable/disable tracing from a new coroutine, not a pooled one.
333 - fix a memleak in Coro::Event.
334 - removed killall call from fork_eval.
335 - made sure store_fd is already loaded so that fork_eval
336 does not have to parse autoload in each subprocess.
337 - only use assembly method if -O switch is in $Config{optimize}.
338 - add (optional) Coro::EV module, so far the best event loop module
339 directly supported by Coro.
340 - if the event model is EV, use EV::DNS to resolve
341 stuff in Coro::Util.
342 - don't get confused by multiple event notifications in Coro::Handle.
343 - initial support for EV (libevent interface).
344 - require Event and EV using configure_requires, to force their existance.
345
3464.13 Wed Oct 24 07:26:45 CEST 2007
347 - add Coro::Storable::blocking_thaw.
348 - use a vastly more complicated technique to localise
349 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
350 - use a coroutine for the idle callback Coro::Event,
351 instead of running Event in the current coroutine context.
352 This also catches recursive invocations.
353 - actually report fork errors in gethostbyname and inet_aton.
354
3554.11 Thu Oct 11 02:40:24 CEST 2007
356 - port to threaded perls.
357
3584.1 Thu Oct 11 02:38:16 CEST 2007
9 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now 359 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
10 be local to each coro (see Coro::State). 360 be local to each coro (see Coro::State).
361 - incompatible change: for very deep reasons, cede and cede_notself
362 cannot return anything, so nothing will be returned.
11 - possibly bring back 5.10 compatibility (untested). 363 - possibly bring back 5.10 compatibility (untested).
12 - work around stupid (and wrong) warning on 5.10 :(. 364 - work around stupid (and wrong) warning on 5.10 :(.
13 - overlay the saved state over the context stack. This saves 365 - overlay the saved state over the context stack. This saves
14 a few hundred bytes per coroutine on average and also 366 a few hundred bytes per coroutine on average and also
15 speeds up context switching a bit. 367 speeds up context switching a bit.
22 an unrelated coroutine. 374 an unrelated coroutine.
23 - explain the relationship between Perl and C coroutines in 375 - explain the relationship between Perl and C coroutines in
24 more detail in Coro::State. 376 more detail in Coro::State.
25 - Coro::Util::inet_aton did not short-circuit dotted quad forms, 377 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
26 causing a fork per resolve. This also affected Coro::Socket. 378 causing a fork per resolve. This also affected Coro::Socket.
27 - sped up Coro::Event next event handling by 15%, uses less memory. 379 - switch to a separate stack in $coro->call/eval to avoid
380 invalidating pointers.
28 381
294.03 Sat Oct 6 21:24:00 CEST 2007 3824.03 Sat Oct 6 21:24:00 CEST 2007
30 - added Coro::throw method. 383 - added Coro::throw method.
31 - minor code cleanups. 384 - minor code cleanups.
32 385

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