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Comparing Coro/Changes (file contents):
Revision 1.203 by root, Mon Jan 22 18:45:17 2007 UTC vs.
Revision 1.413 by root, Fri Nov 14 23:48:09 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
5TODO: fast reloads in cf cause segfaults (coro_state_free->destroy->crash) 5 actor model (which is cool in a lot of important aspects (failures!),
6 but very lacking in others (higher level ipc)).
7TODO: MAP_STACK
8
95.0
10 - NEW ARCHITECTURE: use 4.912 for the stable version.
11 - bump API version to 7 - all dependents must be recompiled.
12 - perl's process emulation is now not even theoretically supported
13 anymore.
14 - directly patch the entersub opcode calling SLF functions (cede,
15 transfer and so on). this does speed up context switching, but
16 more importanly, it frees us from the hardcoded behaviour of
17 entersub, so we might actually be able to return something from
18 those functions and atcually create new ones.
19 - take advantage of __builtin_frame_address on gcc.
20 - expose THX in coroapi (not sure whether this was a wise decision,
21 as "threaded" perls are running at half speed anyways).
22 - implement execute_slf (schedule-like-function) interface that makes
23 it possible to implement schedule-like-functions in XS.
24 - use new SLF interface to massively speed up Coro::EV (it's roughly
25 twice as fast now).
26
274.912 Thu Nov 13 18:31:23 CET 2008
28 - minor cleanups.
29 - use much larger stacks on linux and perl < 5.8.8.
30 - Coro::Debug::new_unix_server did not unlink the socket
31 when destroyed.
32
334.911 Tue Nov 11 04:26:17 CET 2008
34 - "port" to threaded perls.
35
364.91 Mon Nov 10 05:36:38 CET 2008
37 - the ->throw exception object no longer leaks.
38 - creating a new cctx leaked a scopestack entry (memleak).
39 - new coroutines didn't get created with a zero flags field
40 (unknown impact).
41 - calling ->throw on a not-yet-started coroutine should now work
42 instead of being ignored.
43 - ->throw is now supported on Coro::State objects.
44 - clean up cctx creation code a bit.
45 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
46
474.9 Sat Nov 8 17:45:27 CET 2008
48 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
49 - (libcoro) no longer leak threads in the experimental pthread backend,
50 also speed it up considerably.
51 - (libcoro) do not rely on makecontext passing void *'s unscathed.
52 - fix compiletime dependencies on libcoro in the Makefile.
53 - cctx_count wasn't always updated properly.
54 - Coro::State::cctx_stacksize wasn't applied correctly.
55 - new function Coro::State::cctx_max_idle.
56 - the default max number of idle C contexts is now 4.
57 - (libcoro) try harder to get _setjmp/_longjmp.
58 - (libcoro) cleanup and extend the libcoro API to officially
59 allow the creation of empty source contexts.
60 - very experimental workaround for the totally broken netbsd platform.
61 - tried to hack around openbsd bugs.
62
634.804 Wed Nov 5 16:36:00 CET 2008
64 - Coro::Debug::new_unix_server would not create a non-blocking listening
65 socket, sometimes causing freezes.
66 - (libcoro) fix misaligned stack points for setjmp and assembly
67 methods, which can cause crashes on x86/x86_64 with a sufficiently
68 aggressive compiler.
69 - new function: Coro::Debug::new_tcp_server.
70 - move ->throw into the Coro class because it only works on coro objects.
71
724.803 Mon Nov 3 17:16:12 CET 2008
73 - (libcoro) use a global asm statement to become independent of gcc
74 otpimisations for CORO_ASM (thanks to pippijn for the idea).
75 - try to workaround yet another broken bsd, this time dragonfly.
76
774.802 Thu Oct 30 10:56:12 CET 2008
78 - support -fno-omit-frame-pointer on x86 with the assembly method.
79 - tune 01_unblock.t tests a bit.
80
814.801 Wed Oct 22 18:33:37 CEST 2008
82 - improve readline speed for very long "lines".
83 - backport to 5.8.8.
84
854.8 Thu Oct 2 13:34:40 CEST 2008
86 - new function Coro::AIO::aio_wait.
87 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
88 - greatly speed up and reduce memory usage of Coro::AIO requests.
89 - implement some other µ-optimisations.
90
914.749 Mon Sep 29 14:40:12 CEST 2008
92 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
93
944.748 Sat Sep 27 14:03:19 CEST 2008
95 - implement, but do not document, PerlIO::cede(granularity).
96 - Coro::Storable forgot to wrap Storable::pstore.
97 - work around the multitude of leaks and memory corruption
98 bugs in PerlIO::via by using our own C-level perliol. As a side
99 effect, Coro::Storable is now much, much, much faster.
100
1014.747 Tue Sep 23 01:59:41 CEST 2008
102 - fix a per-cv memleak (one empty array was leaked per
103 code reference).
104 - avoid a crash in coro->call|rss when the coroutine was already
105 destroyed (most noticably when using Coro::Debug::ps :)
106 - also protect *Storable::FILE.
107 - push up default storable granularity to 20ms.
108
1094.746 Sun Sep 21 03:22:20 CEST 2008
110 - be more insistent on locking Storable against reentrancy
111 in Coro::Storable.
112 - move swap_def?v and throw to Coro::State, as documented.
113
1144.745 Thu Jul 24 00:14:38 CEST 2008
115 - remove debugging code related to MgPV_nolen_const, also try to
116 make it compile with perl 5.8.6 (yes, apple apparently loves
117 outdated software). Reported by John S.
118
1194.744 Tue Jul 8 22:06:35 CEST 2008
120 - correctly provide default DIE/WARN handlers as documented.
121 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
122 implementations inside perl work fine for us.
123
1244.743 Mon Jun 16 00:21:57 CEST 2008
125 - when using Coro::EV without running EV::loop it could
126 result in busy-waiting for events, this has been fixed.
127 - reduce codesize and improve performance by using EV_DEFAULT_UC.
128
1294.742 Sat May 31 14:10:21 CEST 2008
130 - implement a workaround for (some) perl <5.8.8 versions.
131 - require EV 3.3+.
132
1334.741 Fri May 30 23:33:09 CEST 2008
134 - tell netbsd how utterly broken their imitation of an OS is
135 and refuse to build by default if pthreads are in use.
136 - switch to "s" method on all bsd's by default, as their ucontext
137 stuff seems just too broken.
138 - fix a bug in Coro::Select.
139
1404.74 Thu May 29 20:05:31 CEST 2008
141 - do not test Coro::LWP for lack of dependencies.
142 - do not test Coro::Select for lack of working perls.
143
1444.73 Thu May 29 2008
145 - fix a bug in Coro::EV which would cause it to block despite
146 there being runnable coroutines.
147 - sprinkle "no warnings" freely over everything, also suppress
148 warnings for some other modules.
149 - fix typo in WSAEWOULDBLOCK.
150
1514.72 Sun May 25 05:14:36 CEST 2008
152 - tweak META.yaml a bit, unfortunately, there is no documented way
153 to have optional dependencies with CPAN. doh :(
154 - avoid running some tests on windows because they would fail due to
155 perl bug (broken fork, broken pipes...).
156 - work around perl on windows bugs where perl returns undocumented
157 error codes for sysread, syswrite etc. by taking advantage
158 of AnyEvent's workaround for that problem.
159 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
160 a common perl implementation bug on windows.
161 - use unix domain sockets in testsuite to work around
162 common perl implementation bugs on widows (they are emulated by
163 tcp sockets on windows. ugh.)
164
1654.71 Sat May 24 20:01:27 CEST 2008
166 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
167 - take advantage of async name resolution of AnyEvent::Util.
168 - work around brutal inet_aton override in Coro::LWP.
169 - take advantage of the readyhook in Coro::EV, for smoother
170 scheduling.
171
1724.7 Sun May 11 00:32:19 CEST 2008
173 - completely reworked the Coro manpage.
174 - added Coro::AnyEvent, generic event loop integration.
175 - implement cancel, ready and kill commands in Coro::Debug.
176 - document find_coro in Coro::Debug.
177 - incompatible change: rename has_stack to has_cctx.
178 - Coro::AIO and Coro::BDB no longer force event model detection,
179 use AnyEvent::AIO and AnyEvent::BDB.
180
1814.6 Sat Apr 26 10:05:14 CEST 2008
182 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
183 by the Coro module. It was a mistake to have it in the first place.
184 - (experimental) support for activestate perl 5.10 (method "w").
185 - (experimental) support for strawberry perl (method "a").
186 - coro_sigelem_set did not return a value although it had to,
187 actual impact unknown.
188
1894.51 Mon Apr 14 13:28:27 CEST 2008
190 - make it compile again on 5.8.
191
1924.50 Thu Apr 10 09:43:17 CEST 2008
193 - I did it twice! (see 4.49).
194
1954.49 Sun Apr 6 21:23:31 CEST 2008
196 - grr, instead of compiling the recent changes on 5.10 only they
197 were compiled on 5.8 only.
198
1994.48 Sun Apr 6 20:36:46 CEST 2008
200 - allow coroutine switches during eval's under 5.10.x, as it seems
201 the parser is a per-interpreter option now, so this is safe
202 (this might fix the odd crashing bug).
203 - drop support for 5.9.x versions: they are dead, jim.
204
2054.47 Sun Apr 6 00:37:52 CEST 2008
206 - force cctx allocation on API calls: we know we need to force one
207 and gcc actually manages to confuse our heuristic nowadays,
208 leading to crashes and worse.
209 - document force_cctx.
210
2114.46 Fri Apr 4 22:05:43 CEST 2008
212 - upgrade libcoro, resulting in pthread-backend (which was only created
213 to fulfill the rules of the programming languages shootout).
214
2154.45 Thu Mar 13 11:55:36 CET 2008
216 - fix a file leaking bug in eg/mhyttpd that would allow
217 downloading of any file (reported by oesi).
218 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
219 (also add testcase).
220 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
221 apparently having loads of fun with that).
222 - implement $state->swap_defsv, ->swap_defav and document ->throw.
223
2244.4 Wed Feb 13 16:44:29 CET 2008
225 - only assume .cfi pseudo isns exist on GNU/Linux.
226 - add get_timed method to Coro::Channels.
227 - fixed Coro::Debug manpage.
228 - perl 5.11 compatbility improvement based on patch by
229 Andreas König.
230
2314.37 Sun Jan 20 11:25:23 CET 2008
232 - soften the check for an active parser for perl 5.10 (avoiding
233 "Coro::State::transfer called while parsing" in many cases).
234
2354.36 Sun Jan 13 10:53:56 CET 2008
236 - reset diehook when terminating from an async_pool as to not
237 trigger any __DIE__ handlers.
238
2394.35 Sun Jan 13 04:14:13 CET 2008
240 - "bt" debug command now displays any exceptions
241 from longmess and also skips the innermost
242 stackframes, giving more useufl output.
243 - allow backtraces in coroutines blocked in Coro::EV,
244 at a <1% speed hit.
245 - handle localising of $SIG{__WARN__} and __DIE__
246 properly (with a proper amount of dirty hacking).
247
2484.34 Sat Dec 22 17:49:53 CET 2007
249 - upgrade to EV version 2.0 API.
250
2514.33 Mon Dec 17 08:36:12 CET 2007
252 - make Coro::AIO etc. loadable in the absence of EV.
253
2544.32 Mon Dec 17 07:46:02 CET 2007
255 - majorly improved Coro::Handle's performance with Coro::EV.
256 - implemented the until now mythical Coro::BDB module.
257 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
258
2594.31 Wed Dec 5 12:32:39 CET 2007
260 - remove warn statement form Coro::Util.
261
2624.3 Tue Dec 4 20:33:14 CET 2007
263 - calls to the idle function could cause stack corruption
264 when the stack changed.
265 - do no longer rely on the presence of EV::DNS if EV is used
266 (because it is gone), but instead take avdantage of EV::ADNS
267 if available.
268 - add ($) prototypes to all functions in Coro::Storable.
269 - use a conventional (safer) idle callback in Coro::EV.
270 - do accept quickly in Coro::Debug to avoid endless loops.
271
2724.22 Fri Nov 30 16:04:04 CET 2007
273 - really use optimised versions for Event and EV in Coro::Util
274 and Coro::Handle.
275
2764.21 Sun Nov 25 10:48:59 CET 2007
277 - fix a spurious memory read.
278 - Coro::EV no longer keeps the eventloop "alive".
279
2804.2 Fri Nov 9 20:47:05 CET 2007
281 - enable/disable tracing from a new coroutine, not a pooled one.
282 - fix a memleak in Coro::Event.
283 - removed killall call from fork_eval.
284 - made sure store_fd is already loaded so that fork_eval
285 does not have to parse autoload in each subprocess.
286 - only use assembly method if -O switch is in $Config{optimize}.
287 - add (optional) Coro::EV module, so far the best event loop module
288 directly supported by Coro.
289 - if the event model is EV, use EV::DNS to resolve
290 stuff in Coro::Util.
291 - don't get confused by multiple event notifications in Coro::Handle.
292 - initial support for EV (libevent interface).
293 - require Event and EV using configure_requires, to force their existance.
294
2954.13 Wed Oct 24 07:26:45 CEST 2007
296 - add Coro::Storable::blocking_thaw.
297 - use a vastly more complicated technique to localise
298 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
299 - use a coroutine for the idle callback Coro::Event,
300 instead of running Event in the current coroutine context.
301 This also catches recursive invocations.
302 - actually report fork errors in gethostbyname and inet_aton.
303
3044.11 Thu Oct 11 02:40:24 CEST 2007
305 - port to threaded perls.
306
3074.1 Thu Oct 11 02:38:16 CEST 2007
308 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
309 be local to each coro (see Coro::State).
310 - incompatible change: for very deep reasons, cede and cede_notself
311 cannot return anything, so nothing will be returned.
312 - possibly bring back 5.10 compatibility (untested).
313 - work around stupid (and wrong) warning on 5.10 :(.
314 - overlay the saved state over the context stack. This saves
315 a few hundred bytes per coroutine on average and also
316 speeds up context switching a bit.
317 - further tune default stack sizes.
318 - (more) correctly calculate stack usage in coro_rss.
319 - Coro::Storable::blocking_* did not properly lock
320 resulting in races between coroutines.
321 - added Coro::Storable::guard.
322 - stopping to trace a coroutine could destroy the cctx of
323 an unrelated coroutine.
324 - explain the relationship between Perl and C coroutines in
325 more detail in Coro::State.
326 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
327 causing a fork per resolve. This also affected Coro::Socket.
328 - switch to a separate stack in $coro->call/eval to avoid
329 invalidating pointers.
330
3314.03 Sat Oct 6 21:24:00 CEST 2007
332 - added Coro::throw method.
333 - minor code cleanups.
334
3354.02 Sat Oct 6 02:36:47 CEST 2007
336 - fix a very minor per-coroutine memleak (a single codereference).
337 - fixed a bug where the currently in-use c context would be freed
338 prematurely (can happen only when programs change the stacksize
339 or use tracing).
340 - tracing can no longer keep a coro alive after it terminated.
341 - do static branch prediction in the common path for gcc. gives
342 about 2-5% speed improvement here.
343
3444.01 Fri Oct 5 22:10:49 CEST 2007
345 - instead of recreating *a* standard output handle we simply
346 use STDOUT, which is faster and hopefully more robust.
347
3484.0 Fri Oct 5 12:56:00 CEST 2007
349 - incompatibly changed Coro::Storable::freeze.
350 - major new feature: added Coro::Debug, for interactive coroutine
351 debugging, tracing and much more.
352 - major bug fix: unbelievable, but true: $_, $/ and many other
353 "saved" variables actually weren't being saved. This has been fixed,
354 of course, while increasing performance while losing all the save
355 flags.
356 - save flags are gone, and all the api functions dealing with them.
357 - added Coro::Semaphore::adjust.
358 - added Coro::Util::fork_eval.
359 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
360 - added Coro::killall.
361 - reduce initial stack sizes to allow for "micro-coroutines".
362 - better async_pool resource management, moved parts of async_pool
363 handling to XS (major speed improvement).
364 - actually croak before modifying important data structures.
365 - refuse to transfer while compiling.
366 - possibly support eval EXPR better now.
367 - enable assembly per default on linux+bsd x86+amd64.
368 - all internal members were renamed _something for easier subclassing.
369 - many minor tweaks.
370
3713.63 Wed May 16 14:10:06 CEST 2007
372 - implement handcoded assembly for x86/amd64 SVR ABI.
373
3743.62 Fri Apr 27 21:36:06 CEST 2007
375 - upgrade libcoro (which might set unwind info correctly).
376 - change default on linux to setjmp/longjmp.
377
3783.61 Thu Apr 19 12:36:18 CEST 2007
379 - Coro::Storable caused an endless loop when thawing invalid
380 pst's sometimes.
381 - use a Semaphore in Coro::Storable, as Storable doesn't
382 seem to be reentrant (although it is documented to
383 be threadsafe...).
384 - fix Coro::Signal to bring back the original unreliable
385 but stateful semantics.
386 - fixed a lot of typos in Coro.pm (patch submitted by David
387 Steinbrunner, which applied flawlessly).
388
3893.6 Sat Apr 14 17:13:31 CEST 2007
390 - added some bugfixes to get eg/myhttpd working again.
391 - added Coro::Storable for often-cede'ing freeze/thaw.
392 - try to do a clean exit when a coroutine calls exit
393 (EXPERIMENTAL).
394 - got rid of indirect call through _coro_init.
395 - updated the partly antique examples in eg/ to
396 work again and be a bit less magic, too.
397 - fixed Coro::Signal semantics to work as documented again.
398
3993.55 Sun Mar 25 01:20:47 CET 2007
400 - add SAVE_DEFFH to save the default filehandle and enable
401 it by default.
402 - finally move socket-operations from Coro::Socket to Coro::Handle
403 to be able to unblock foreign sockets.
404 - add Coro::State::save_also and guarded_save.
405 - add count accessor to Coro::Semaphore.
406 - add Coro::State::cctx_stacksize.
407 - just for the fun of it, do not rely on implicit context,
408 which can dramatically improve performance, but people
409 using windows-process-emulation perls do not care much about
410 performance.
411
4123.51 Sun Mar 4 14:18:04 CET 2007
413 - fixed a problem when you weakened references to Coro::State's
414 (patch by Yuval Kogman).
415
4163.501 Wed Feb 28 12:44:07 CET 2007
417 - rename some global symbols as macosx from hell redefines
418 them without asking.
419
4203.5 Tue Feb 13 20:22:53 CET 2007
421 - do AnyEvent model detection earlier, avoiding problems
422 caused by first using AnyEvent and later Coro::Event.
423 - implement and document Coro::Event event objects.
424 - fix a potential problem in Coro::Event causing crashes.
425 - initialise PL_comppad when creating a new coroutine,
426 avoids crashes on early coro destruction.
6 427
73.41 Mon Jan 22 19:19:49 CET 2007 4283.41 Mon Jan 22 19:19:49 CET 2007
8 - readline on Coro::Handle did not support undefined $/, 429 - readline on Coro::Handle did not support undefined $/,
9 nor did it deliver partial lines on EOF or error. 430 nor did it deliver partial lines on EOF or error.
10 - implement malloc fallback for stack allocation because 431 - implement malloc fallback for stack allocation because

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