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Comparing Coro/Changes (file contents):
Revision 1.195 by root, Fri Jan 5 19:47:12 2007 UTC vs.
Revision 1.401 by root, Mon Nov 10 20:38:33 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
63.3 8 - "port" to threaded perls.
9
104.91 Mon Nov 10 05:36:38 CET 2008
11 - the ->throw exception object no longer leaks.
12 - creating a new cctx leaked a scopestack entry (memleak).
13 - new coroutines didn't get created with a zero flags field
14 (unknown impact).
15 - calling ->throw on a not-yet-started coroutine should now work
16 instead of being ignored.
17 - ->throw is now supported on Coro::State objects.
18 - clean up cctx creation code a bit.
19 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
20
214.9 Sat Nov 8 17:45:27 CET 2008
22 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
23 - (libcoro) no longer leak threads in the experimental pthread backend,
24 also speed it up considerably.
25 - (libcoro) do not rely on makecontext passing void *'s unscathed.
26 - fix compiletime dependencies on libcoro in the Makefile.
27 - cctx_count wasn't always updated properly.
28 - Coro::State::cctx_stacksize wasn't applied correctly.
29 - new function Coro::State::cctx_max_idle.
30 - the default max number of idle C contexts is now 4.
31 - (libcoro) try harder to get _setjmp/_longjmp.
32 - (libcoro) cleanup and extend the libcoro API to officially
33 allow the creation of empty source contexts.
34 - very experimental workaround for the totally broken netbsd platform.
35 - tried to hack around openbsd bugs.
36
374.804 Wed Nov 5 16:36:00 CET 2008
38 - Coro::Debug::new_unix_server would not create a non-blocking listening
39 socket, sometimes causing freezes.
40 - (libcoro) fix misaligned stack points for setjmp and assembly
41 methods, which can cause crashes on x86/x86_64 with a sufficiently
42 aggressive compiler.
43 - new function: Coro::Debug::new_tcp_server.
44 - move ->throw into the Coro class because it only works on coro objects.
45
464.803 Mon Nov 3 17:16:12 CET 2008
47 - (libcoro) use a global asm statement to become independent of gcc
48 otpimisations for CORO_ASM (thanks to pippijn for the idea).
49 - try to workaround yet another broken bsd, this time dragonfly.
50
514.802 Thu Oct 30 10:56:12 CET 2008
52 - support -fno-omit-frame-pointer on x86 with the assembly method.
53 - tune 01_unblock.t tests a bit.
54
554.801 Wed Oct 22 18:33:37 CEST 2008
56 - improve readline speed for very long "lines".
57 - backport to 5.8.8.
58
594.8 Thu Oct 2 13:34:40 CEST 2008
60 - new function Coro::AIO::aio_wait.
61 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
62 - greatly speed up and reduce memory usage of Coro::AIO requests.
63 - implement some other µ-optimisations.
64
654.749 Mon Sep 29 14:40:12 CEST 2008
66 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
67
684.748 Sat Sep 27 14:03:19 CEST 2008
69 - implement, but do not document, PerlIO::cede(granularity).
70 - Coro::Storable forgot to wrap Storable::pstore.
71 - work around the multitude of leaks and memory corruption
72 bugs in PerlIO::via by using our own C-level perliol. As a side
73 effect, Coro::Storable is now much, much, much faster.
74
754.747 Tue Sep 23 01:59:41 CEST 2008
76 - fix a per-cv memleak (one empty array was leaked per
77 code reference).
78 - avoid a crash in coro->call|rss when the coroutine was already
79 destroyed (most noticably when using Coro::Debug::ps :)
80 - also protect *Storable::FILE.
81 - push up default storable granularity to 20ms.
82
834.746 Sun Sep 21 03:22:20 CEST 2008
84 - be more insistent on locking Storable against reentrancy
85 in Coro::Storable.
86 - move swap_def?v and throw to Coro::State, as documented.
87
884.745 Thu Jul 24 00:14:38 CEST 2008
89 - remove debugging code related to MgPV_nolen_const, also try to
90 make it compile with perl 5.8.6 (yes, apple apparently loves
91 outdated software). Reported by John S.
92
934.744 Tue Jul 8 22:06:35 CEST 2008
94 - correctly provide default DIE/WARN handlers as documented.
95 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
96 implementations inside perl work fine for us.
97
984.743 Mon Jun 16 00:21:57 CEST 2008
99 - when using Coro::EV without running EV::loop it could
100 result in busy-waiting for events, this has been fixed.
101 - reduce codesize and improve performance by using EV_DEFAULT_UC.
102
1034.742 Sat May 31 14:10:21 CEST 2008
104 - implement a workaround for (some) perl <5.8.8 versions.
105 - require EV 3.3+.
106
1074.741 Fri May 30 23:33:09 CEST 2008
108 - tell netbsd how utterly broken their imitation of an OS is
109 and refuse to build by default if pthreads are in use.
110 - switch to "s" method on all bsd's by default, as their ucontext
111 stuff seems just too broken.
112 - fix a bug in Coro::Select.
113
1144.74 Thu May 29 20:05:31 CEST 2008
115 - do not test Coro::LWP for lack of dependencies.
116 - do not test Coro::Select for lack of working perls.
117
1184.73 Thu May 29 2008
119 - fix a bug in Coro::EV which would cause it to block despite
120 there being runnable coroutines.
121 - sprinkle "no warnings" freely over everything, also suppress
122 warnings for some other modules.
123 - fix typo in WSAEWOULDBLOCK.
124
1254.72 Sun May 25 05:14:36 CEST 2008
126 - tweak META.yaml a bit, unfortunately, there is no documented way
127 to have optional dependencies with CPAN. doh :(
128 - avoid running some tests on windows because they would fail due to
129 perl bug (broken fork, broken pipes...).
130 - work around perl on windows bugs where perl returns undocumented
131 error codes for sysread, syswrite etc. by taking advantage
132 of AnyEvent's workaround for that problem.
133 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
134 a common perl implementation bug on windows.
135 - use unix domain sockets in testsuite to work around
136 common perl implementation bugs on widows (they are emulated by
137 tcp sockets on windows. ugh.)
138
1394.71 Sat May 24 20:01:27 CEST 2008
140 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
141 - take advantage of async name resolution of AnyEvent::Util.
142 - work around brutal inet_aton override in Coro::LWP.
143 - take advantage of the readyhook in Coro::EV, for smoother
144 scheduling.
145
1464.7 Sun May 11 00:32:19 CEST 2008
147 - completely reworked the Coro manpage.
148 - added Coro::AnyEvent, generic event loop integration.
149 - implement cancel, ready and kill commands in Coro::Debug.
150 - document find_coro in Coro::Debug.
151 - incompatible change: rename has_stack to has_cctx.
152 - Coro::AIO and Coro::BDB no longer force event model detection,
153 use AnyEvent::AIO and AnyEvent::BDB.
154
1554.6 Sat Apr 26 10:05:14 CEST 2008
156 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
157 by the Coro module. It was a mistake to have it in the first place.
158 - (experimental) support for activestate perl 5.10 (method "w").
159 - (experimental) support for strawberry perl (method "a").
160 - coro_sigelem_set did not return a value although it had to,
161 actual impact unknown.
162
1634.51 Mon Apr 14 13:28:27 CEST 2008
164 - make it compile again on 5.8.
165
1664.50 Thu Apr 10 09:43:17 CEST 2008
167 - I did it twice! (see 4.49).
168
1694.49 Sun Apr 6 21:23:31 CEST 2008
170 - grr, instead of compiling the recent changes on 5.10 only they
171 were compiled on 5.8 only.
172
1734.48 Sun Apr 6 20:36:46 CEST 2008
174 - allow coroutine switches during eval's under 5.10.x, as it seems
175 the parser is a per-interpreter option now, so this is safe
176 (this might fix the odd crashing bug).
177 - drop support for 5.9.x versions: they are dead, jim.
178
1794.47 Sun Apr 6 00:37:52 CEST 2008
180 - force cctx allocation on API calls: we know we need to force one
181 and gcc actually manages to confuse our heuristic nowadays,
182 leading to crashes and worse.
183 - document force_cctx.
184
1854.46 Fri Apr 4 22:05:43 CEST 2008
186 - upgrade libcoro, resulting in pthread-backend (which was only created
187 to fulfill the rules of the programming languages shootout).
188
1894.45 Thu Mar 13 11:55:36 CET 2008
190 - fix a file leaking bug in eg/mhyttpd that would allow
191 downloading of any file (reported by oesi).
192 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
193 (also add testcase).
194 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
195 apparently having loads of fun with that).
196 - implement $state->swap_defsv, ->swap_defav and document ->throw.
197
1984.4 Wed Feb 13 16:44:29 CET 2008
199 - only assume .cfi pseudo isns exist on GNU/Linux.
200 - add get_timed method to Coro::Channels.
201 - fixed Coro::Debug manpage.
202 - perl 5.11 compatbility improvement based on patch by
203 Andreas König.
204
2054.37 Sun Jan 20 11:25:23 CET 2008
206 - soften the check for an active parser for perl 5.10 (avoiding
207 "Coro::State::transfer called while parsing" in many cases).
208
2094.36 Sun Jan 13 10:53:56 CET 2008
210 - reset diehook when terminating from an async_pool as to not
211 trigger any __DIE__ handlers.
212
2134.35 Sun Jan 13 04:14:13 CET 2008
214 - "bt" debug command now displays any exceptions
215 from longmess and also skips the innermost
216 stackframes, giving more useufl output.
217 - allow backtraces in coroutines blocked in Coro::EV,
218 at a <1% speed hit.
219 - handle localising of $SIG{__WARN__} and __DIE__
220 properly (with a proper amount of dirty hacking).
221
2224.34 Sat Dec 22 17:49:53 CET 2007
223 - upgrade to EV version 2.0 API.
224
2254.33 Mon Dec 17 08:36:12 CET 2007
226 - make Coro::AIO etc. loadable in the absence of EV.
227
2284.32 Mon Dec 17 07:46:02 CET 2007
229 - majorly improved Coro::Handle's performance with Coro::EV.
230 - implemented the until now mythical Coro::BDB module.
231 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
232
2334.31 Wed Dec 5 12:32:39 CET 2007
234 - remove warn statement form Coro::Util.
235
2364.3 Tue Dec 4 20:33:14 CET 2007
237 - calls to the idle function could cause stack corruption
238 when the stack changed.
239 - do no longer rely on the presence of EV::DNS if EV is used
240 (because it is gone), but instead take avdantage of EV::ADNS
241 if available.
242 - add ($) prototypes to all functions in Coro::Storable.
243 - use a conventional (safer) idle callback in Coro::EV.
244 - do accept quickly in Coro::Debug to avoid endless loops.
245
2464.22 Fri Nov 30 16:04:04 CET 2007
247 - really use optimised versions for Event and EV in Coro::Util
248 and Coro::Handle.
249
2504.21 Sun Nov 25 10:48:59 CET 2007
251 - fix a spurious memory read.
252 - Coro::EV no longer keeps the eventloop "alive".
253
2544.2 Fri Nov 9 20:47:05 CET 2007
255 - enable/disable tracing from a new coroutine, not a pooled one.
256 - fix a memleak in Coro::Event.
257 - removed killall call from fork_eval.
258 - made sure store_fd is already loaded so that fork_eval
259 does not have to parse autoload in each subprocess.
260 - only use assembly method if -O switch is in $Config{optimize}.
261 - add (optional) Coro::EV module, so far the best event loop module
262 directly supported by Coro.
263 - if the event model is EV, use EV::DNS to resolve
264 stuff in Coro::Util.
265 - don't get confused by multiple event notifications in Coro::Handle.
266 - initial support for EV (libevent interface).
267 - require Event and EV using configure_requires, to force their existance.
268
2694.13 Wed Oct 24 07:26:45 CEST 2007
270 - add Coro::Storable::blocking_thaw.
271 - use a vastly more complicated technique to localise
272 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
273 - use a coroutine for the idle callback Coro::Event,
274 instead of running Event in the current coroutine context.
275 This also catches recursive invocations.
276 - actually report fork errors in gethostbyname and inet_aton.
277
2784.11 Thu Oct 11 02:40:24 CEST 2007
279 - port to threaded perls.
280
2814.1 Thu Oct 11 02:38:16 CEST 2007
282 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
283 be local to each coro (see Coro::State).
284 - incompatible change: for very deep reasons, cede and cede_notself
285 cannot return anything, so nothing will be returned.
286 - possibly bring back 5.10 compatibility (untested).
287 - work around stupid (and wrong) warning on 5.10 :(.
288 - overlay the saved state over the context stack. This saves
289 a few hundred bytes per coroutine on average and also
290 speeds up context switching a bit.
291 - further tune default stack sizes.
292 - (more) correctly calculate stack usage in coro_rss.
293 - Coro::Storable::blocking_* did not properly lock
294 resulting in races between coroutines.
295 - added Coro::Storable::guard.
296 - stopping to trace a coroutine could destroy the cctx of
297 an unrelated coroutine.
298 - explain the relationship between Perl and C coroutines in
299 more detail in Coro::State.
300 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
301 causing a fork per resolve. This also affected Coro::Socket.
302 - switch to a separate stack in $coro->call/eval to avoid
303 invalidating pointers.
304
3054.03 Sat Oct 6 21:24:00 CEST 2007
306 - added Coro::throw method.
307 - minor code cleanups.
308
3094.02 Sat Oct 6 02:36:47 CEST 2007
310 - fix a very minor per-coroutine memleak (a single codereference).
311 - fixed a bug where the currently in-use c context would be freed
312 prematurely (can happen only when programs change the stacksize
313 or use tracing).
314 - tracing can no longer keep a coro alive after it terminated.
315 - do static branch prediction in the common path for gcc. gives
316 about 2-5% speed improvement here.
317
3184.01 Fri Oct 5 22:10:49 CEST 2007
319 - instead of recreating *a* standard output handle we simply
320 use STDOUT, which is faster and hopefully more robust.
321
3224.0 Fri Oct 5 12:56:00 CEST 2007
323 - incompatibly changed Coro::Storable::freeze.
324 - major new feature: added Coro::Debug, for interactive coroutine
325 debugging, tracing and much more.
326 - major bug fix: unbelievable, but true: $_, $/ and many other
327 "saved" variables actually weren't being saved. This has been fixed,
328 of course, while increasing performance while losing all the save
329 flags.
330 - save flags are gone, and all the api functions dealing with them.
331 - added Coro::Semaphore::adjust.
332 - added Coro::Util::fork_eval.
333 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
334 - added Coro::killall.
335 - reduce initial stack sizes to allow for "micro-coroutines".
336 - better async_pool resource management, moved parts of async_pool
337 handling to XS (major speed improvement).
338 - actually croak before modifying important data structures.
339 - refuse to transfer while compiling.
340 - possibly support eval EXPR better now.
341 - enable assembly per default on linux+bsd x86+amd64.
342 - all internal members were renamed _something for easier subclassing.
343 - many minor tweaks.
344
3453.63 Wed May 16 14:10:06 CEST 2007
346 - implement handcoded assembly for x86/amd64 SVR ABI.
347
3483.62 Fri Apr 27 21:36:06 CEST 2007
349 - upgrade libcoro (which might set unwind info correctly).
350 - change default on linux to setjmp/longjmp.
351
3523.61 Thu Apr 19 12:36:18 CEST 2007
353 - Coro::Storable caused an endless loop when thawing invalid
354 pst's sometimes.
355 - use a Semaphore in Coro::Storable, as Storable doesn't
356 seem to be reentrant (although it is documented to
357 be threadsafe...).
358 - fix Coro::Signal to bring back the original unreliable
359 but stateful semantics.
360 - fixed a lot of typos in Coro.pm (patch submitted by David
361 Steinbrunner, which applied flawlessly).
362
3633.6 Sat Apr 14 17:13:31 CEST 2007
364 - added some bugfixes to get eg/myhttpd working again.
365 - added Coro::Storable for often-cede'ing freeze/thaw.
366 - try to do a clean exit when a coroutine calls exit
367 (EXPERIMENTAL).
368 - got rid of indirect call through _coro_init.
369 - updated the partly antique examples in eg/ to
370 work again and be a bit less magic, too.
371 - fixed Coro::Signal semantics to work as documented again.
372
3733.55 Sun Mar 25 01:20:47 CET 2007
374 - add SAVE_DEFFH to save the default filehandle and enable
375 it by default.
376 - finally move socket-operations from Coro::Socket to Coro::Handle
377 to be able to unblock foreign sockets.
378 - add Coro::State::save_also and guarded_save.
379 - add count accessor to Coro::Semaphore.
380 - add Coro::State::cctx_stacksize.
381 - just for the fun of it, do not rely on implicit context,
382 which can dramatically improve performance, but people
383 using windows-process-emulation perls do not care much about
384 performance.
385
3863.51 Sun Mar 4 14:18:04 CET 2007
387 - fixed a problem when you weakened references to Coro::State's
388 (patch by Yuval Kogman).
389
3903.501 Wed Feb 28 12:44:07 CET 2007
391 - rename some global symbols as macosx from hell redefines
392 them without asking.
393
3943.5 Tue Feb 13 20:22:53 CET 2007
395 - do AnyEvent model detection earlier, avoiding problems
396 caused by first using AnyEvent and later Coro::Event.
397 - implement and document Coro::Event event objects.
398 - fix a potential problem in Coro::Event causing crashes.
399 - initialise PL_comppad when creating a new coroutine,
400 avoids crashes on early coro destruction.
401
4023.41 Mon Jan 22 19:19:49 CET 2007
403 - readline on Coro::Handle did not support undefined $/,
404 nor did it deliver partial lines on EOF or error.
405 - implement malloc fallback for stack allocation because
406 stupid broken idiotic OSX has a stupid broken
407 idiotic fits-the-whole-os mmap "implementation" and
408 my dick feels longer if Coro is portable even to
409 obsolete platforms.
410
4113.4 Fri Jan 19 21:52:54 CET 2007
412 - remove t/09_timer.t, as it isn't really testing much
413 but was rather flaky in practise.
414 - async_pool coro would keep arguments and callback alive until
415 it was reused.
416 - cancellation of a coroutine could cause spurious idle calls
417 in cede_notself.
418
4193.3 Sat Jan 6 03:45:00 CET 2007
7 - implement $coro->on_destroy. 420 - implement $coro->on_destroy.
8 - Coro::Event blocking semantics have been changed, 421 - Coro::Event blocking semantics have been changed,
9 documented and - hopefully - improved. 422 documented and - hopefully - improved.
10 - fix nice adding, not subtracting, from priority. 423 - fix nice adding, not subtracting, from priority.
11 - fix ->prio and api_is_ready (patch by Mark Hinds). 424 - fix ->prio and api_is_ready (patch by Mark Hinds).

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