ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/Coro/Changes
(Generate patch)

Comparing Coro/Changes (file contents):
Revision 1.252 by root, Wed Oct 3 16:03:17 2007 UTC vs.
Revision 1.444 by root, Wed Nov 19 16:01:32 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: 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.
32 - new function Coro::Semaphore::wait.
33 - use named constants in Coro::Channel (Richard Hundt).
34 - directly patch the entersub opcode calling SLF functions (cede,
35 transfer and so on). this does speed up context switching, but
36 more importanly, it frees us from the hardcoded behaviour of
37 entersub, so we might actually be able to return something from
38 those functions and atcually create new ones.
39 - take advantage of __builtin_frame_address on gcc.
40 - expose THX in coroapi (not sure whether this was a wise decision,
41 as "threaded" perls are running at half speed anyways).
42 - implement execute_slf (schedule-like-function) interface that makes
43 it possible to implement schedule-like-functions in XS.
44 - use new SLF interface to massively speed up Coro::EV by roughly a
45 factor of two.
46 - used new SLF interface to massively speed up Coro::Semaphore by a
47 factor of three.
48 - used new SLF interface to speed up Coro::AIO by roughly a factor of
49 four and reduce its memory usage considerably.
50 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
51 for a nice speedup and vastly more correct behaviour. Also implement
52 a new method "sem" to get at the underlying semaphore object.
53 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
54 (in comparison) 20-40% speedup.
55 - used new SLF interface to reimplement Coro::Signal gaining
56 some unknown (because I was too lazy), but certain, speedup, and also
57 making signals reliable for the first time.
58 - sped up coroutine creation/destruction by 40%.
59 - forgot to include Coro/libcoro/README in the dist for all these years.
60 - work around a freebsd pthreads bug (manual testcancel is required as
61 pthread_cond_wait isn't a cancellation point on freebsd).
62 - use new rouse functions to speed up and simplify Coro::BDB.
63 - make "prefer perl native functions" work with threaded perls.
64 - condense Coro::Debug ps output, hint at v and w flags.
65 - (libcoro) lots of minor cleanups and portability improvements.
66
674.913 Sat Nov 15 07:58:28 CET 2008
68 - async_pool did free a scalar value twice
69 ("Attempt to unreference...").
70
714.912 Thu Nov 13 18:31:23 CET 2008
72 - minor cleanups.
73 - use much larger stacks on linux and perl < 5.8.8.
74 - Coro::Debug::new_unix_server did not unlink the socket
75 when destroyed.
76
774.911 Tue Nov 11 04:26:17 CET 2008
78 - "port" to threaded perls.
79
804.91 Mon Nov 10 05:36:38 CET 2008
81 - the ->throw exception object no longer leaks.
82 - creating a new cctx leaked a scopestack entry (memleak).
83 - new coroutines didn't get created with a zero flags field
84 (unknown impact).
85 - calling ->throw on a not-yet-started coroutine should now work
86 instead of being ignored.
87 - ->throw is now supported on Coro::State objects.
88 - clean up cctx creation code a bit.
89 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
90
914.9 Sat Nov 8 17:45:27 CET 2008
92 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
93 - (libcoro) no longer leak threads in the experimental pthread backend,
94 also speed it up considerably.
95 - (libcoro) do not rely on makecontext passing void *'s unscathed.
96 - fix compiletime dependencies on libcoro in the Makefile.
97 - cctx_count wasn't always updated properly.
98 - Coro::State::cctx_stacksize wasn't applied correctly.
99 - new function Coro::State::cctx_max_idle.
100 - the default max number of idle C contexts is now 4.
101 - (libcoro) try harder to get _setjmp/_longjmp.
102 - (libcoro) cleanup and extend the libcoro API to officially
103 allow the creation of empty source contexts.
104 - very experimental workaround for the totally broken netbsd platform.
105 - tried to hack around openbsd bugs.
106
1074.804 Wed Nov 5 16:36:00 CET 2008
108 - Coro::Debug::new_unix_server would not create a non-blocking listening
109 socket, sometimes causing freezes.
110 - (libcoro) fix misaligned stack points for setjmp and assembly
111 methods, which can cause crashes on x86/x86_64 with a sufficiently
112 aggressive compiler.
113 - new function: Coro::Debug::new_tcp_server.
114 - move ->throw into the Coro class because it only works on coro objects.
115
1164.803 Mon Nov 3 17:16:12 CET 2008
117 - (libcoro) use a global asm statement to become independent of gcc
118 otpimisations for CORO_ASM (thanks to pippijn for the idea).
119 - try to workaround yet another broken bsd, this time dragonfly.
120
1214.802 Thu Oct 30 10:56:12 CET 2008
122 - support -fno-omit-frame-pointer on x86 with the assembly method.
123 - tune 01_unblock.t tests a bit.
124
1254.801 Wed Oct 22 18:33:37 CEST 2008
126 - improve readline speed for very long "lines".
127 - backport to 5.8.8.
128
1294.8 Thu Oct 2 13:34:40 CEST 2008
130 - new function Coro::AIO::aio_wait.
131 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
132 - greatly speed up and reduce memory usage of Coro::AIO requests.
133 - implement some other µ-optimisations.
134
1354.749 Mon Sep 29 14:40:12 CEST 2008
136 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
137
1384.748 Sat Sep 27 14:03:19 CEST 2008
139 - implement, but do not document, PerlIO::cede(granularity).
140 - Coro::Storable forgot to wrap Storable::pstore.
141 - work around the multitude of leaks and memory corruption
142 bugs in PerlIO::via by using our own C-level perliol. As a side
143 effect, Coro::Storable is now much, much, much faster.
144
1454.747 Tue Sep 23 01:59:41 CEST 2008
146 - fix a per-cv memleak (one empty array was leaked per
147 code reference).
148 - avoid a crash in coro->call|rss when the coroutine was already
149 destroyed (most noticably when using Coro::Debug::ps :)
150 - also protect *Storable::FILE.
151 - push up default storable granularity to 20ms.
152
1534.746 Sun Sep 21 03:22:20 CEST 2008
154 - be more insistent on locking Storable against reentrancy
155 in Coro::Storable.
156 - move swap_def?v and throw to Coro::State, as documented.
157
1584.745 Thu Jul 24 00:14:38 CEST 2008
159 - remove debugging code related to MgPV_nolen_const, also try to
160 make it compile with perl 5.8.6 (yes, apple apparently loves
161 outdated software). Reported by John S.
162
1634.744 Tue Jul 8 22:06:35 CEST 2008
164 - correctly provide default DIE/WARN handlers as documented.
165 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
166 implementations inside perl work fine for us.
167
1684.743 Mon Jun 16 00:21:57 CEST 2008
169 - when using Coro::EV without running EV::loop it could
170 result in busy-waiting for events, this has been fixed.
171 - reduce codesize and improve performance by using EV_DEFAULT_UC.
172
1734.742 Sat May 31 14:10:21 CEST 2008
174 - implement a workaround for (some) perl <5.8.8 versions.
175 - require EV 3.3+.
176
1774.741 Fri May 30 23:33:09 CEST 2008
178 - tell netbsd how utterly broken their imitation of an OS is
179 and refuse to build by default if pthreads are in use.
180 - switch to "s" method on all bsd's by default, as their ucontext
181 stuff seems just too broken.
182 - fix a bug in Coro::Select.
183
1844.74 Thu May 29 20:05:31 CEST 2008
185 - do not test Coro::LWP for lack of dependencies.
186 - do not test Coro::Select for lack of working perls.
187
1884.73 Thu May 29 2008
189 - fix a bug in Coro::EV which would cause it to block despite
190 there being runnable coroutines.
191 - sprinkle "no warnings" freely over everything, also suppress
192 warnings for some other modules.
193 - fix typo in WSAEWOULDBLOCK.
194
1954.72 Sun May 25 05:14:36 CEST 2008
196 - tweak META.yaml a bit, unfortunately, there is no documented way
197 to have optional dependencies with CPAN. doh :(
198 - avoid running some tests on windows because they would fail due to
199 perl bug (broken fork, broken pipes...).
200 - work around perl on windows bugs where perl returns undocumented
201 error codes for sysread, syswrite etc. by taking advantage
202 of AnyEvent's workaround for that problem.
203 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
204 a common perl implementation bug on windows.
205 - use unix domain sockets in testsuite to work around
206 common perl implementation bugs on widows (they are emulated by
207 tcp sockets on windows. ugh.)
208
2094.71 Sat May 24 20:01:27 CEST 2008
210 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
211 - take advantage of async name resolution of AnyEvent::Util.
212 - work around brutal inet_aton override in Coro::LWP.
213 - take advantage of the readyhook in Coro::EV, for smoother
214 scheduling.
215
2164.7 Sun May 11 00:32:19 CEST 2008
217 - completely reworked the Coro manpage.
218 - added Coro::AnyEvent, generic event loop integration.
219 - implement cancel, ready and kill commands in Coro::Debug.
220 - document find_coro in Coro::Debug.
221 - incompatible change: rename has_stack to has_cctx.
222 - Coro::AIO and Coro::BDB no longer force event model detection,
223 use AnyEvent::AIO and AnyEvent::BDB.
224
2254.6 Sat Apr 26 10:05:14 CEST 2008
226 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
227 by the Coro module. It was a mistake to have it in the first place.
228 - (experimental) support for activestate perl 5.10 (method "w").
229 - (experimental) support for strawberry perl (method "a").
230 - coro_sigelem_set did not return a value although it had to,
231 actual impact unknown.
232
2334.51 Mon Apr 14 13:28:27 CEST 2008
234 - make it compile again on 5.8.
235
2364.50 Thu Apr 10 09:43:17 CEST 2008
237 - I did it twice! (see 4.49).
238
2394.49 Sun Apr 6 21:23:31 CEST 2008
240 - grr, instead of compiling the recent changes on 5.10 only they
241 were compiled on 5.8 only.
242
2434.48 Sun Apr 6 20:36:46 CEST 2008
244 - allow coroutine switches during eval's under 5.10.x, as it seems
245 the parser is a per-interpreter option now, so this is safe
246 (this might fix the odd crashing bug).
247 - drop support for 5.9.x versions: they are dead, jim.
248
2494.47 Sun Apr 6 00:37:52 CEST 2008
250 - force cctx allocation on API calls: we know we need to force one
251 and gcc actually manages to confuse our heuristic nowadays,
252 leading to crashes and worse.
253 - document force_cctx.
254
2554.46 Fri Apr 4 22:05:43 CEST 2008
256 - upgrade libcoro, resulting in pthread-backend (which was only created
257 to fulfill the rules of the programming languages shootout).
258
2594.45 Thu Mar 13 11:55:36 CET 2008
260 - fix a file leaking bug in eg/mhyttpd that would allow
261 downloading of any file (reported by oesi).
262 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
263 (also add testcase).
264 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
265 apparently having loads of fun with that).
266 - implement $state->swap_defsv, ->swap_defav and document ->throw.
267
2684.4 Wed Feb 13 16:44:29 CET 2008
269 - only assume .cfi pseudo isns exist on GNU/Linux.
270 - add get_timed method to Coro::Channels.
271 - fixed Coro::Debug manpage.
272 - perl 5.11 compatbility improvement based on patch by
273 Andreas König.
274
2754.37 Sun Jan 20 11:25:23 CET 2008
276 - soften the check for an active parser for perl 5.10 (avoiding
277 "Coro::State::transfer called while parsing" in many cases).
278
2794.36 Sun Jan 13 10:53:56 CET 2008
280 - reset diehook when terminating from an async_pool as to not
281 trigger any __DIE__ handlers.
282
2834.35 Sun Jan 13 04:14:13 CET 2008
284 - "bt" debug command now displays any exceptions
285 from longmess and also skips the innermost
286 stackframes, giving more useufl output.
287 - allow backtraces in coroutines blocked in Coro::EV,
288 at a <1% speed hit.
289 - handle localising of $SIG{__WARN__} and __DIE__
290 properly (with a proper amount of dirty hacking).
291
2924.34 Sat Dec 22 17:49:53 CET 2007
293 - upgrade to EV version 2.0 API.
294
2954.33 Mon Dec 17 08:36:12 CET 2007
296 - make Coro::AIO etc. loadable in the absence of EV.
297
2984.32 Mon Dec 17 07:46:02 CET 2007
299 - majorly improved Coro::Handle's performance with Coro::EV.
300 - implemented the until now mythical Coro::BDB module.
301 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
302
3034.31 Wed Dec 5 12:32:39 CET 2007
304 - remove warn statement form Coro::Util.
305
3064.3 Tue Dec 4 20:33:14 CET 2007
307 - calls to the idle function could cause stack corruption
308 when the stack changed.
309 - do no longer rely on the presence of EV::DNS if EV is used
310 (because it is gone), but instead take avdantage of EV::ADNS
311 if available.
312 - add ($) prototypes to all functions in Coro::Storable.
313 - use a conventional (safer) idle callback in Coro::EV.
314 - do accept quickly in Coro::Debug to avoid endless loops.
315
3164.22 Fri Nov 30 16:04:04 CET 2007
317 - really use optimised versions for Event and EV in Coro::Util
318 and Coro::Handle.
319
3204.21 Sun Nov 25 10:48:59 CET 2007
321 - fix a spurious memory read.
322 - Coro::EV no longer keeps the eventloop "alive".
323
3244.2 Fri Nov 9 20:47:05 CET 2007
325 - enable/disable tracing from a new coroutine, not a pooled one.
326 - fix a memleak in Coro::Event.
327 - removed killall call from fork_eval.
328 - made sure store_fd is already loaded so that fork_eval
329 does not have to parse autoload in each subprocess.
330 - only use assembly method if -O switch is in $Config{optimize}.
331 - add (optional) Coro::EV module, so far the best event loop module
332 directly supported by Coro.
333 - if the event model is EV, use EV::DNS to resolve
334 stuff in Coro::Util.
335 - don't get confused by multiple event notifications in Coro::Handle.
336 - initial support for EV (libevent interface).
337 - require Event and EV using configure_requires, to force their existance.
338
3394.13 Wed Oct 24 07:26:45 CEST 2007
340 - add Coro::Storable::blocking_thaw.
341 - use a vastly more complicated technique to localise
342 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
343 - use a coroutine for the idle callback Coro::Event,
344 instead of running Event in the current coroutine context.
345 This also catches recursive invocations.
346 - actually report fork errors in gethostbyname and inet_aton.
347
3484.11 Thu Oct 11 02:40:24 CEST 2007
349 - port to threaded perls.
350
3514.1 Thu Oct 11 02:38:16 CEST 2007
352 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
353 be local to each coro (see Coro::State).
354 - incompatible change: for very deep reasons, cede and cede_notself
355 cannot return anything, so nothing will be returned.
356 - possibly bring back 5.10 compatibility (untested).
357 - work around stupid (and wrong) warning on 5.10 :(.
358 - overlay the saved state over the context stack. This saves
359 a few hundred bytes per coroutine on average and also
360 speeds up context switching a bit.
361 - further tune default stack sizes.
362 - (more) correctly calculate stack usage in coro_rss.
363 - Coro::Storable::blocking_* did not properly lock
364 resulting in races between coroutines.
365 - added Coro::Storable::guard.
366 - stopping to trace a coroutine could destroy the cctx of
367 an unrelated coroutine.
368 - explain the relationship between Perl and C coroutines in
369 more detail in Coro::State.
370 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
371 causing a fork per resolve. This also affected Coro::Socket.
372 - switch to a separate stack in $coro->call/eval to avoid
373 invalidating pointers.
374
3754.03 Sat Oct 6 21:24:00 CEST 2007
376 - added Coro::throw method.
377 - minor code cleanups.
378
3794.02 Sat Oct 6 02:36:47 CEST 2007
380 - fix a very minor per-coroutine memleak (a single codereference).
381 - fixed a bug where the currently in-use c context would be freed
382 prematurely (can happen only when programs change the stacksize
383 or use tracing).
384 - tracing can no longer keep a coro alive after it terminated.
385 - do static branch prediction in the common path for gcc. gives
386 about 2-5% speed improvement here.
387
3884.01 Fri Oct 5 22:10:49 CEST 2007
389 - instead of recreating *a* standard output handle we simply
390 use STDOUT, which is faster and hopefully more robust.
391
3924.0 Fri Oct 5 12:56:00 CEST 2007
9 - incompatibly changed Coro::Storable::freeze. 393 - incompatibly changed Coro::Storable::freeze.
10 - major new feature: added Coro::Debug, for interactive coroutine 394 - major new feature: added Coro::Debug, for interactive coroutine
11 debugging, tracing and much more. 395 debugging, tracing and much more.
12 - major bug fix: unbelievable, but true: $_, $/ and many other 396 - major bug fix: unbelievable, but true: $_, $/ and many other
13 "saved" variables actually weren't being saved. This has been fixed, 397 "saved" variables actually weren't being saved. This has been fixed,
23 handling to XS (major speed improvement). 407 handling to XS (major speed improvement).
24 - actually croak before modifying important data structures. 408 - actually croak before modifying important data structures.
25 - refuse to transfer while compiling. 409 - refuse to transfer while compiling.
26 - possibly support eval EXPR better now. 410 - possibly support eval EXPR better now.
27 - enable assembly per default on linux+bsd x86+amd64. 411 - enable assembly per default on linux+bsd x86+amd64.
28 - all internal members are named _something for easier subclassing. 412 - all internal members were renamed _something for easier subclassing.
29 - many minor tweaks. 413 - many minor tweaks.
30 414
313.63 Wed May 16 14:10:06 CEST 2007 4153.63 Wed May 16 14:10:06 CEST 2007
32 - implement handcoded assembly for x86/amd64 SVR ABI. 416 - implement handcoded assembly for x86/amd64 SVR ABI.
33 417

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines