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Comparing Coro/Changes (file contents):
Revision 1.252 by root, Wed Oct 3 16:03:17 2007 UTC vs.
Revision 1.422 by root, Sun Nov 16 11:12:57 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
84.0 8TODO: testcancel
9TODO: aio
10TODO: Coro::Semaphore
11TODO: trow disturbs cleanup path inside pp_slf?
12TODO: throw special-case in transfer?
135.0
14 - NEW ARCHITECTURE: use 4.912 for the stable version.
15 - bump API version to 7 - all dependents must be recompiled.
16 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
17 - async_pool did free a scalar value twice
18 ("Attempt to unreference...").
19 - fix a longstanding bug where calling terminate on a coro that
20 was waiting for a semaphore that was just becoming available
21 would cause a deadlock (semaphore would get into a state where
22 it was available but waiters were waiting(.
23 - perl's process emulation is now not even theoretically supported
24 anymore.
25 - directly patch the entersub opcode calling SLF functions (cede,
26 transfer and so on). this does speed up context switching, but
27 more importanly, it frees us from the hardcoded behaviour of
28 entersub, so we might actually be able to return something from
29 those functions and atcually create new ones.
30 - take advantage of __builtin_frame_address on gcc.
31 - expose THX in coroapi (not sure whether this was a wise decision,
32 as "threaded" perls are running at half speed anyways).
33 - implement execute_slf (schedule-like-function) interface that makes
34 it possible to implement schedule-like-functions in XS.
35 - use new SLF interface to massively speed up Coro::EV by roughly a factor
36 of two.
37 - removed timed_down and timed_guard functions - they were not being used
38 anyways and should be replaced by a more generic mechanism - and were
39 annoying to support anyways :
40 - used new SLF interface to massively speed up Coro::Semaphore by a factor
41 of three.
42 - forgot to include Coro/libcoro/README in the dist for all these years.
43 - work around a freebsd pthreads bug (manual testcancel is required as
44 pthread_cond_wait isn't a cancellation point on freebsd).
45
464.913 Sat Nov 15 07:58:28 CET 2008
47 - async_pool did free a scalar value twice
48 ("Attempt to unreference...").
49
504.912 Thu Nov 13 18:31:23 CET 2008
51 - minor cleanups.
52 - use much larger stacks on linux and perl < 5.8.8.
53 - Coro::Debug::new_unix_server did not unlink the socket
54 when destroyed.
55
564.911 Tue Nov 11 04:26:17 CET 2008
57 - "port" to threaded perls.
58
594.91 Mon Nov 10 05:36:38 CET 2008
60 - the ->throw exception object no longer leaks.
61 - creating a new cctx leaked a scopestack entry (memleak).
62 - new coroutines didn't get created with a zero flags field
63 (unknown impact).
64 - calling ->throw on a not-yet-started coroutine should now work
65 instead of being ignored.
66 - ->throw is now supported on Coro::State objects.
67 - clean up cctx creation code a bit.
68 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
69
704.9 Sat Nov 8 17:45:27 CET 2008
71 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
72 - (libcoro) no longer leak threads in the experimental pthread backend,
73 also speed it up considerably.
74 - (libcoro) do not rely on makecontext passing void *'s unscathed.
75 - fix compiletime dependencies on libcoro in the Makefile.
76 - cctx_count wasn't always updated properly.
77 - Coro::State::cctx_stacksize wasn't applied correctly.
78 - new function Coro::State::cctx_max_idle.
79 - the default max number of idle C contexts is now 4.
80 - (libcoro) try harder to get _setjmp/_longjmp.
81 - (libcoro) cleanup and extend the libcoro API to officially
82 allow the creation of empty source contexts.
83 - very experimental workaround for the totally broken netbsd platform.
84 - tried to hack around openbsd bugs.
85
864.804 Wed Nov 5 16:36:00 CET 2008
87 - Coro::Debug::new_unix_server would not create a non-blocking listening
88 socket, sometimes causing freezes.
89 - (libcoro) fix misaligned stack points for setjmp and assembly
90 methods, which can cause crashes on x86/x86_64 with a sufficiently
91 aggressive compiler.
92 - new function: Coro::Debug::new_tcp_server.
93 - move ->throw into the Coro class because it only works on coro objects.
94
954.803 Mon Nov 3 17:16:12 CET 2008
96 - (libcoro) use a global asm statement to become independent of gcc
97 otpimisations for CORO_ASM (thanks to pippijn for the idea).
98 - try to workaround yet another broken bsd, this time dragonfly.
99
1004.802 Thu Oct 30 10:56:12 CET 2008
101 - support -fno-omit-frame-pointer on x86 with the assembly method.
102 - tune 01_unblock.t tests a bit.
103
1044.801 Wed Oct 22 18:33:37 CEST 2008
105 - improve readline speed for very long "lines".
106 - backport to 5.8.8.
107
1084.8 Thu Oct 2 13:34:40 CEST 2008
109 - new function Coro::AIO::aio_wait.
110 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
111 - greatly speed up and reduce memory usage of Coro::AIO requests.
112 - implement some other µ-optimisations.
113
1144.749 Mon Sep 29 14:40:12 CEST 2008
115 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
116
1174.748 Sat Sep 27 14:03:19 CEST 2008
118 - implement, but do not document, PerlIO::cede(granularity).
119 - Coro::Storable forgot to wrap Storable::pstore.
120 - work around the multitude of leaks and memory corruption
121 bugs in PerlIO::via by using our own C-level perliol. As a side
122 effect, Coro::Storable is now much, much, much faster.
123
1244.747 Tue Sep 23 01:59:41 CEST 2008
125 - fix a per-cv memleak (one empty array was leaked per
126 code reference).
127 - avoid a crash in coro->call|rss when the coroutine was already
128 destroyed (most noticably when using Coro::Debug::ps :)
129 - also protect *Storable::FILE.
130 - push up default storable granularity to 20ms.
131
1324.746 Sun Sep 21 03:22:20 CEST 2008
133 - be more insistent on locking Storable against reentrancy
134 in Coro::Storable.
135 - move swap_def?v and throw to Coro::State, as documented.
136
1374.745 Thu Jul 24 00:14:38 CEST 2008
138 - remove debugging code related to MgPV_nolen_const, also try to
139 make it compile with perl 5.8.6 (yes, apple apparently loves
140 outdated software). Reported by John S.
141
1424.744 Tue Jul 8 22:06:35 CEST 2008
143 - correctly provide default DIE/WARN handlers as documented.
144 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
145 implementations inside perl work fine for us.
146
1474.743 Mon Jun 16 00:21:57 CEST 2008
148 - when using Coro::EV without running EV::loop it could
149 result in busy-waiting for events, this has been fixed.
150 - reduce codesize and improve performance by using EV_DEFAULT_UC.
151
1524.742 Sat May 31 14:10:21 CEST 2008
153 - implement a workaround for (some) perl <5.8.8 versions.
154 - require EV 3.3+.
155
1564.741 Fri May 30 23:33:09 CEST 2008
157 - tell netbsd how utterly broken their imitation of an OS is
158 and refuse to build by default if pthreads are in use.
159 - switch to "s" method on all bsd's by default, as their ucontext
160 stuff seems just too broken.
161 - fix a bug in Coro::Select.
162
1634.74 Thu May 29 20:05:31 CEST 2008
164 - do not test Coro::LWP for lack of dependencies.
165 - do not test Coro::Select for lack of working perls.
166
1674.73 Thu May 29 2008
168 - fix a bug in Coro::EV which would cause it to block despite
169 there being runnable coroutines.
170 - sprinkle "no warnings" freely over everything, also suppress
171 warnings for some other modules.
172 - fix typo in WSAEWOULDBLOCK.
173
1744.72 Sun May 25 05:14:36 CEST 2008
175 - tweak META.yaml a bit, unfortunately, there is no documented way
176 to have optional dependencies with CPAN. doh :(
177 - avoid running some tests on windows because they would fail due to
178 perl bug (broken fork, broken pipes...).
179 - work around perl on windows bugs where perl returns undocumented
180 error codes for sysread, syswrite etc. by taking advantage
181 of AnyEvent's workaround for that problem.
182 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
183 a common perl implementation bug on windows.
184 - use unix domain sockets in testsuite to work around
185 common perl implementation bugs on widows (they are emulated by
186 tcp sockets on windows. ugh.)
187
1884.71 Sat May 24 20:01:27 CEST 2008
189 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
190 - take advantage of async name resolution of AnyEvent::Util.
191 - work around brutal inet_aton override in Coro::LWP.
192 - take advantage of the readyhook in Coro::EV, for smoother
193 scheduling.
194
1954.7 Sun May 11 00:32:19 CEST 2008
196 - completely reworked the Coro manpage.
197 - added Coro::AnyEvent, generic event loop integration.
198 - implement cancel, ready and kill commands in Coro::Debug.
199 - document find_coro in Coro::Debug.
200 - incompatible change: rename has_stack to has_cctx.
201 - Coro::AIO and Coro::BDB no longer force event model detection,
202 use AnyEvent::AIO and AnyEvent::BDB.
203
2044.6 Sat Apr 26 10:05:14 CEST 2008
205 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
206 by the Coro module. It was a mistake to have it in the first place.
207 - (experimental) support for activestate perl 5.10 (method "w").
208 - (experimental) support for strawberry perl (method "a").
209 - coro_sigelem_set did not return a value although it had to,
210 actual impact unknown.
211
2124.51 Mon Apr 14 13:28:27 CEST 2008
213 - make it compile again on 5.8.
214
2154.50 Thu Apr 10 09:43:17 CEST 2008
216 - I did it twice! (see 4.49).
217
2184.49 Sun Apr 6 21:23:31 CEST 2008
219 - grr, instead of compiling the recent changes on 5.10 only they
220 were compiled on 5.8 only.
221
2224.48 Sun Apr 6 20:36:46 CEST 2008
223 - allow coroutine switches during eval's under 5.10.x, as it seems
224 the parser is a per-interpreter option now, so this is safe
225 (this might fix the odd crashing bug).
226 - drop support for 5.9.x versions: they are dead, jim.
227
2284.47 Sun Apr 6 00:37:52 CEST 2008
229 - force cctx allocation on API calls: we know we need to force one
230 and gcc actually manages to confuse our heuristic nowadays,
231 leading to crashes and worse.
232 - document force_cctx.
233
2344.46 Fri Apr 4 22:05:43 CEST 2008
235 - upgrade libcoro, resulting in pthread-backend (which was only created
236 to fulfill the rules of the programming languages shootout).
237
2384.45 Thu Mar 13 11:55:36 CET 2008
239 - fix a file leaking bug in eg/mhyttpd that would allow
240 downloading of any file (reported by oesi).
241 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
242 (also add testcase).
243 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
244 apparently having loads of fun with that).
245 - implement $state->swap_defsv, ->swap_defav and document ->throw.
246
2474.4 Wed Feb 13 16:44:29 CET 2008
248 - only assume .cfi pseudo isns exist on GNU/Linux.
249 - add get_timed method to Coro::Channels.
250 - fixed Coro::Debug manpage.
251 - perl 5.11 compatbility improvement based on patch by
252 Andreas König.
253
2544.37 Sun Jan 20 11:25:23 CET 2008
255 - soften the check for an active parser for perl 5.10 (avoiding
256 "Coro::State::transfer called while parsing" in many cases).
257
2584.36 Sun Jan 13 10:53:56 CET 2008
259 - reset diehook when terminating from an async_pool as to not
260 trigger any __DIE__ handlers.
261
2624.35 Sun Jan 13 04:14:13 CET 2008
263 - "bt" debug command now displays any exceptions
264 from longmess and also skips the innermost
265 stackframes, giving more useufl output.
266 - allow backtraces in coroutines blocked in Coro::EV,
267 at a <1% speed hit.
268 - handle localising of $SIG{__WARN__} and __DIE__
269 properly (with a proper amount of dirty hacking).
270
2714.34 Sat Dec 22 17:49:53 CET 2007
272 - upgrade to EV version 2.0 API.
273
2744.33 Mon Dec 17 08:36:12 CET 2007
275 - make Coro::AIO etc. loadable in the absence of EV.
276
2774.32 Mon Dec 17 07:46:02 CET 2007
278 - majorly improved Coro::Handle's performance with Coro::EV.
279 - implemented the until now mythical Coro::BDB module.
280 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
281
2824.31 Wed Dec 5 12:32:39 CET 2007
283 - remove warn statement form Coro::Util.
284
2854.3 Tue Dec 4 20:33:14 CET 2007
286 - calls to the idle function could cause stack corruption
287 when the stack changed.
288 - do no longer rely on the presence of EV::DNS if EV is used
289 (because it is gone), but instead take avdantage of EV::ADNS
290 if available.
291 - add ($) prototypes to all functions in Coro::Storable.
292 - use a conventional (safer) idle callback in Coro::EV.
293 - do accept quickly in Coro::Debug to avoid endless loops.
294
2954.22 Fri Nov 30 16:04:04 CET 2007
296 - really use optimised versions for Event and EV in Coro::Util
297 and Coro::Handle.
298
2994.21 Sun Nov 25 10:48:59 CET 2007
300 - fix a spurious memory read.
301 - Coro::EV no longer keeps the eventloop "alive".
302
3034.2 Fri Nov 9 20:47:05 CET 2007
304 - enable/disable tracing from a new coroutine, not a pooled one.
305 - fix a memleak in Coro::Event.
306 - removed killall call from fork_eval.
307 - made sure store_fd is already loaded so that fork_eval
308 does not have to parse autoload in each subprocess.
309 - only use assembly method if -O switch is in $Config{optimize}.
310 - add (optional) Coro::EV module, so far the best event loop module
311 directly supported by Coro.
312 - if the event model is EV, use EV::DNS to resolve
313 stuff in Coro::Util.
314 - don't get confused by multiple event notifications in Coro::Handle.
315 - initial support for EV (libevent interface).
316 - require Event and EV using configure_requires, to force their existance.
317
3184.13 Wed Oct 24 07:26:45 CEST 2007
319 - add Coro::Storable::blocking_thaw.
320 - use a vastly more complicated technique to localise
321 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
322 - use a coroutine for the idle callback Coro::Event,
323 instead of running Event in the current coroutine context.
324 This also catches recursive invocations.
325 - actually report fork errors in gethostbyname and inet_aton.
326
3274.11 Thu Oct 11 02:40:24 CEST 2007
328 - port to threaded perls.
329
3304.1 Thu Oct 11 02:38:16 CEST 2007
331 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
332 be local to each coro (see Coro::State).
333 - incompatible change: for very deep reasons, cede and cede_notself
334 cannot return anything, so nothing will be returned.
335 - possibly bring back 5.10 compatibility (untested).
336 - work around stupid (and wrong) warning on 5.10 :(.
337 - overlay the saved state over the context stack. This saves
338 a few hundred bytes per coroutine on average and also
339 speeds up context switching a bit.
340 - further tune default stack sizes.
341 - (more) correctly calculate stack usage in coro_rss.
342 - Coro::Storable::blocking_* did not properly lock
343 resulting in races between coroutines.
344 - added Coro::Storable::guard.
345 - stopping to trace a coroutine could destroy the cctx of
346 an unrelated coroutine.
347 - explain the relationship between Perl and C coroutines in
348 more detail in Coro::State.
349 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
350 causing a fork per resolve. This also affected Coro::Socket.
351 - switch to a separate stack in $coro->call/eval to avoid
352 invalidating pointers.
353
3544.03 Sat Oct 6 21:24:00 CEST 2007
355 - added Coro::throw method.
356 - minor code cleanups.
357
3584.02 Sat Oct 6 02:36:47 CEST 2007
359 - fix a very minor per-coroutine memleak (a single codereference).
360 - fixed a bug where the currently in-use c context would be freed
361 prematurely (can happen only when programs change the stacksize
362 or use tracing).
363 - tracing can no longer keep a coro alive after it terminated.
364 - do static branch prediction in the common path for gcc. gives
365 about 2-5% speed improvement here.
366
3674.01 Fri Oct 5 22:10:49 CEST 2007
368 - instead of recreating *a* standard output handle we simply
369 use STDOUT, which is faster and hopefully more robust.
370
3714.0 Fri Oct 5 12:56:00 CEST 2007
9 - incompatibly changed Coro::Storable::freeze. 372 - incompatibly changed Coro::Storable::freeze.
10 - major new feature: added Coro::Debug, for interactive coroutine 373 - major new feature: added Coro::Debug, for interactive coroutine
11 debugging, tracing and much more. 374 debugging, tracing and much more.
12 - major bug fix: unbelievable, but true: $_, $/ and many other 375 - major bug fix: unbelievable, but true: $_, $/ and many other
13 "saved" variables actually weren't being saved. This has been fixed, 376 "saved" variables actually weren't being saved. This has been fixed,
23 handling to XS (major speed improvement). 386 handling to XS (major speed improvement).
24 - actually croak before modifying important data structures. 387 - actually croak before modifying important data structures.
25 - refuse to transfer while compiling. 388 - refuse to transfer while compiling.
26 - possibly support eval EXPR better now. 389 - possibly support eval EXPR better now.
27 - enable assembly per default on linux+bsd x86+amd64. 390 - enable assembly per default on linux+bsd x86+amd64.
28 - all internal members are named _something for easier subclassing. 391 - all internal members were renamed _something for easier subclassing.
29 - many minor tweaks. 392 - many minor tweaks.
30 393
313.63 Wed May 16 14:10:06 CEST 2007 3943.63 Wed May 16 14:10:06 CEST 2007
32 - implement handcoded assembly for x86/amd64 SVR ABI. 395 - implement handcoded assembly for x86/amd64 SVR ABI.
33 396

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