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

Comparing Coro/Changes (file contents):
Revision 1.67 by root, Wed Jan 16 01:45:24 2002 UTC vs.
Revision 1.307 by root, Sat Dec 22 16:53:37 2007 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2
3TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO.
4TODO: maybe implement a default message channel, very much like Erlang
5 (which is cool in a lot of important aspects (failures!),
6 but very lacking in others (higher level ipc)).
7
84.34 Sat Dec 22 17:49:53 CET 2007
9 - upgrade to EV version 2.0 API.
10
114.33 Mon Dec 17 08:36:12 CET 2007
12 - make Coro::AIO etc. loadable in the absence of EV.
13
144.32 Mon Dec 17 07:46:02 CET 2007
15 - majorly improved Coro::Handle's performance with Coro::EV.
16 - implemented the until now mythical Coro::BDB module.
17 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
18
194.31 Wed Dec 5 12:32:39 CET 2007
20 - remove warn statement form Coro::Util.
21
224.3 Tue Dec 4 20:33:14 CET 2007
23 - calls to the idle function could cause stack corruption
24 when the stack changed.
25 - do no longer rely on the presence of EV::DNS if EV is used
26 (because it is gone), but instead take avdantage of EV::ADNS
27 if available.
28 - add ($) prototypes to all functions in Coro::Storable.
29 - use a conventional (safer) idle callback in Coro::EV.
30 - do accept quickly in Coro::Debug to avoid endless loops.
31
324.22 Fri Nov 30 16:04:04 CET 2007
33 - really use optimised versions for Event and EV in Coro::Util
34 and Coro::Handle.
35
364.21 Sun Nov 25 10:48:59 CET 2007
37 - fix a spurious memory read.
38 - Coro::EV no longer keeps the eventloop "alive".
39
404.2 Fri Nov 9 20:47:05 CET 2007
41 - enable/disable tracing from a new coroutine, not a pooled one.
42 - fix a memleak in Coro::Event.
43 - removed killall call from fork_eval.
44 - made sure store_fd is already loaded so that fork_eval
45 does not have to parse autoload in each subprocess.
46 - only use assembly method if -O switch is in $Config{optimize}.
47 - add (optional) Coro::EV module, so far the best event loop module
48 directly supported by Coro.
49 - if the event model is EV, use EV::DNS to resolve
50 stuff in Coro::Util.
51 - don't get confused by multiple event notifications in Coro::Handle.
52 - initial support for EV (libevent interface).
53 - require Event and EV using configure_requires, to force their existance.
54
554.13 Wed Oct 24 07:26:45 CEST 2007
56 - add Coro::Storable::blocking_thaw.
57 - use a vastly more complicated technique to localise
58 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
59 - use a coroutine for the idle callback Coro::Event,
60 instead of running Event in the current coroutine context.
61 This also catches recursive invocations.
62 - actually report fork errors in gethostbyname and inet_aton.
63
644.11 Thu Oct 11 02:40:24 CEST 2007
65 - port to threaded perls.
66
674.1 Thu Oct 11 02:38:16 CEST 2007
68 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
69 be local to each coro (see Coro::State).
70 - incompatible change: for very deep reasons, cede and cede_notself
71 cannot return anything, so nothing will be returned.
72 - possibly bring back 5.10 compatibility (untested).
73 - work around stupid (and wrong) warning on 5.10 :(.
74 - overlay the saved state over the context stack. This saves
75 a few hundred bytes per coroutine on average and also
76 speeds up context switching a bit.
77 - further tune default stack sizes.
78 - (more) correctly calculate stack usage in coro_rss.
79 - Coro::Storable::blocking_* did not properly lock
80 resulting in races between coroutines.
81 - added Coro::Storable::guard.
82 - stopping to trace a coroutine could destroy the cctx of
83 an unrelated coroutine.
84 - explain the relationship between Perl and C coroutines in
85 more detail in Coro::State.
86 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
87 causing a fork per resolve. This also affected Coro::Socket.
88 - switch to a separate stack in $coro->call/eval to avoid
89 invalidating pointers.
90
914.03 Sat Oct 6 21:24:00 CEST 2007
92 - added Coro::throw method.
93 - minor code cleanups.
94
954.02 Sat Oct 6 02:36:47 CEST 2007
96 - fix a very minor per-coroutine memleak (a single codereference).
97 - fixed a bug where the currently in-use c context would be freed
98 prematurely (can happen only when programs change the stacksize
99 or use tracing).
100 - tracing can no longer keep a coro alive after it terminated.
101 - do static branch prediction in the common path for gcc. gives
102 about 2-5% speed improvement here.
103
1044.01 Fri Oct 5 22:10:49 CEST 2007
105 - instead of recreating *a* standard output handle we simply
106 use STDOUT, which is faster and hopefully more robust.
107
1084.0 Fri Oct 5 12:56:00 CEST 2007
109 - incompatibly changed Coro::Storable::freeze.
110 - major new feature: added Coro::Debug, for interactive coroutine
111 debugging, tracing and much more.
112 - major bug fix: unbelievable, but true: $_, $/ and many other
113 "saved" variables actually weren't being saved. This has been fixed,
114 of course, while increasing performance while losing all the save
115 flags.
116 - save flags are gone, and all the api functions dealing with them.
117 - added Coro::Semaphore::adjust.
118 - added Coro::Util::fork_eval.
119 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
120 - added Coro::killall.
121 - reduce initial stack sizes to allow for "micro-coroutines".
122 - better async_pool resource management, moved parts of async_pool
123 handling to XS (major speed improvement).
124 - actually croak before modifying important data structures.
125 - refuse to transfer while compiling.
126 - possibly support eval EXPR better now.
127 - enable assembly per default on linux+bsd x86+amd64.
128 - all internal members were renamed _something for easier subclassing.
129 - many minor tweaks.
130
1313.63 Wed May 16 14:10:06 CEST 2007
132 - implement handcoded assembly for x86/amd64 SVR ABI.
133
1343.62 Fri Apr 27 21:36:06 CEST 2007
135 - upgrade libcoro (which might set unwind info correctly).
136 - change default on linux to setjmp/longjmp.
137
1383.61 Thu Apr 19 12:36:18 CEST 2007
139 - Coro::Storable caused an endless loop when thawing invalid
140 pst's sometimes.
141 - use a Semaphore in Coro::Storable, as Storable doesn't
142 seem to be reentrant (although it is documented to
143 be threadsafe...).
144 - fix Coro::Signal to bring back the original unreliable
145 but stateful semantics.
146 - fixed a lot of typos in Coro.pm (patch submitted by David
147 Steinbrunner, which applied flawlessly).
148
1493.6 Sat Apr 14 17:13:31 CEST 2007
150 - added some bugfixes to get eg/myhttpd working again.
151 - added Coro::Storable for often-cede'ing freeze/thaw.
152 - try to do a clean exit when a coroutine calls exit
153 (EXPERIMENTAL).
154 - got rid of indirect call through _coro_init.
155 - updated the partly antique examples in eg/ to
156 work again and be a bit less magic, too.
157 - fixed Coro::Signal semantics to work as documented again.
158
1593.55 Sun Mar 25 01:20:47 CET 2007
160 - add SAVE_DEFFH to save the default filehandle and enable
161 it by default.
162 - finally move socket-operations from Coro::Socket to Coro::Handle
163 to be able to unblock foreign sockets.
164 - add Coro::State::save_also and guarded_save.
165 - add count accessor to Coro::Semaphore.
166 - add Coro::State::cctx_stacksize.
167 - just for the fun of it, do not rely on implicit context,
168 which can dramatically improve performance, but people
169 using windows-process-emulation perls do not care much about
170 performance.
171
1723.51 Sun Mar 4 14:18:04 CET 2007
173 - fixed a problem when you weakened references to Coro::State's
174 (patch by Yuval Kogman).
175
1763.501 Wed Feb 28 12:44:07 CET 2007
177 - rename some global symbols as macosx from hell redefines
178 them without asking.
179
1803.5 Tue Feb 13 20:22:53 CET 2007
181 - do AnyEvent model detection earlier, avoiding problems
182 caused by first using AnyEvent and later Coro::Event.
183 - implement and document Coro::Event event objects.
184 - fix a potential problem in Coro::Event causing crashes.
185 - initialise PL_comppad when creating a new coroutine,
186 avoids crashes on early coro destruction.
187
1883.41 Mon Jan 22 19:19:49 CET 2007
189 - readline on Coro::Handle did not support undefined $/,
190 nor did it deliver partial lines on EOF or error.
191 - implement malloc fallback for stack allocation because
192 stupid broken idiotic OSX has a stupid broken
193 idiotic fits-the-whole-os mmap "implementation" and
194 my dick feels longer if Coro is portable even to
195 obsolete platforms.
196
1973.4 Fri Jan 19 21:52:54 CET 2007
198 - remove t/09_timer.t, as it isn't really testing much
199 but was rather flaky in practise.
200 - async_pool coro would keep arguments and callback alive until
201 it was reused.
202 - cancellation of a coroutine could cause spurious idle calls
203 in cede_notself.
204
2053.3 Sat Jan 6 03:45:00 CET 2007
206 - implement $coro->on_destroy.
207 - Coro::Event blocking semantics have been changed,
208 documented and - hopefully - improved.
209 - fix nice adding, not subtracting, from priority.
210 - fix ->prio and api_is_ready (patch by Mark Hinds).
211 - fixed an assert ("... == prev__cctx->idle_te")
212 that could errronously trigger.
213 - fix various large and small memleaks.
214 - use a (hopefully) more stable cancel implementation
215 that immediately frees the coroutine data.
216 - cede/cede_notself return a status now.
217 - added Coro::guard function.
218 - added a global coroutine pool for jobs (on my machine,
219 I can create and execute 48k simple coros/s with async,
220 and 128k coros with async_pool).
221 - Coro::AIO now uses the coroutine priority as io priority.
222
2233.2 Fri Dec 22 05:07:09 CET 2006
224 - improve portability to slightly older perls.
225 - use cleaner coroutine destruction.
226 - simplify configuration for users.
227 - optionally (unrecommended) prefer perl functions over
228 their coro replacements.
229
2303.11 Tue Dec 5 13:11:24 CET 2006
231 - fixed some bogus assert's, but as perl.h disables assert even
232 without NDEBUG (thank you very much), not too many people should
233 notice (that did include myself). Andreas König noticed, though :)
234 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
235 it. Also noticed by Andreas König :)
236 - save/restore tainted status.
237 - verified to pass the testsuite on my 5.9.5.
238
2393.1 Mon Dec 4 23:03:40 CET 2006
240 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
241 - incompatible change: transfer flags are now per-state.
242 - give a better error message on deadlock.
243 - document Coro::nready.
244 - enhanced testsuite.
245
2463.01 Sun Dec 3 23:47:42 CET 2006
247 - forgot to include Coro::Timer.
248
2493.0 Sun Dec 3 22:57:25 CET 2006
250 - the "FINALLY COMPLETELY STABLE" release (coming soon:
251 the "FAMOUS LAST WORDS" release).
252 - implement a new stack sharing algorithm, which uses a stack
253 pool (size currently hardcoded).
254 - make stack sharing mandatory (it no longer uses a heuristic).
255 - eval/die no longer cause weird problems under heavy use.
256 - Coro::Event could cause livelocks if it was used but
257 no Coro::Event watchers were used.
258 - Coro::Event now uses asynccheck as prepare does not
259 check for changed watchers.
260 - Coro::Event allows multiple waiting coros and will wake up one
261 per event.
262 - Coro::Event should be cleaner and more efficient now.
263 - new utility function Coro::unblock_sub.
264 - document the sad fact that Event is no longer reentrant.
265 - putting a coroutine into the ready queue twice could under
266 some circumstances lead to stack corruption.
267 - minor incompatibility: subclassing Coro::State is supported
268 directly now without going through a _coro_state member.
269 - state/coro switching is much faster now.
270 - very minor optimisations and code/documentation cleanup.
271 - avoid problems due to compiler inlining.
272 - removed timers from Coro::Timer -> use AnyEvent instead.
273 - replaced Coro::idle coroutine by (cleaner) idle handler.
274 - updated to newest libcoro.
275 - implement enhanced support for valgrind.
276 - implement is_ready and return value for ready.
277 - removed Coro::Cont, it was a misnomer (it's generators),
278 and it was somewhat annoying to get it right. Will come back
279 if somebody asks for it :)
280 - many ->wait methods and Coro::Event could return
281 spuriously without the event having happened.
282
2832.5 Tue Nov 7 12:22:33 CET 2006
284 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
285 use AnyEvent, moved them to Coro/.
286 - added Coro::LWP which contains all the uglyness required to
287 make LWP non-blocking.
288 - should work with perl 5.9.x now (Andreas König made me do it).
289 - fixed another bug in Coro::Select when the timeout was undef.
290 - reuse PL_start_env for all coros, saves some memory per coroutine.
291 - manage PL_top_env differently, hopefully to avoid panic: top_env.
292 - timeout argument was not properly used in Coro::Socket.
293 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
294 - emulate undocumented(!) functionality of IO::Socket required
295 by LWP(!!).
296 - updated eg/lwp to work with newer lwp's.
297 - remove "FATAL: uncaught exception" prefix. Coroutines that die
298 kill the whole process, just as exceptions in the main "coroutine"
299 did already.
300
3012.1 Wed Nov 1 23:01:13 CET 2006
302 - fix a long-standing bug in Coro::Select where select with
303 zero timeout would instead change the current default filehandle.
304 - use a simpler and hopefully more robust way to clone padlists
305 (uses less memory and a perl function instead of our own).
306 - coro can now create a stack guard area on many architectures.
307 - Coro::AIO properly reexports additional functions from IO::AIO.
308 - updated libcoro with a workaround for OS X,
309 pach and testing by Michael Schwern.
310
3112.0 Tue Oct 24 05:47:17 CEST 2006
312 - support additional aio requests in Coro::AIO.
313
3141.9 (never properly released due to a glitch)
315
3161.8 Thu Feb 2 00:59:06 CET 2006
317 - applied suggested patch by SAMV to avoid problems during stupid
318 mark & sweep gc run.
319 - applied patch by Scott Walters for 5.9.3 compatibility.
320
3211.7 Tue Dec 27 01:41:58 CET 2005
322 - added Coro::AIO, a thin wrapper around IO::AIO.
323 - improved Makefile.PL explanations.
324
3251.6 Mon Dec 12 21:30:05 CET 2005
326 - additionally save PM_curpm might fix as-of-yet
327 unseen problems with regex matches being attributed to the
328 wrong package.
329 - add t/10_bugs.t, which currently checks against imho broken
330 perls that use 0.26MB of stack space per Perl_magic_get
331 invocation (newer linuxes) as opposed to the 0.0002MB perl
332 normally uses.
333 - make stacksize configurable for the ultimate debian experience.
334
3351.51 Mon Dec 12 18:48:36 CET 2005
336 - remove debugging warn() accidentally left in Coro::Select.
337
3381.5 Tue Nov 29 13:32:44 CET 2005
339 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
340 - fix Coro::Select 'select'.
341 - strict'ify some modules.
342 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
343 - use XSLoader in selected modules.
344 - remove some 5.6 compatibility cruft.
345
3461.4 Tue Sep 6 00:11:05 CEST 2005
347 - libcoro did not take into account the trampoline on amd64,
348 when 'l'inux method was used.
349
3501.31 Tue Aug 30 23:31:33 CEST 2005
351 - some portability fixes/workarounds.
352
3531.3 Sat Aug 20 03:08:56 CEST 2005
354 - no code changes. module seems to work fine.
355 - improve Coro::State docs, remove reference to nonexisting
356 Coro::State::flush method.
357 - no longer autodetect windows, present it as an option instead.
358
3591.2 Mon May 16 02:00:55 CEST 2005
360 - included libcoro.c earlier in State.xs, might improve portability.
361 - use a faster and possibly more stable Coro::Cont implementation.
362 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
363 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
364 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
365
3661.11 Thu Mar 3 18:00:52 CET 2005
367 - change of contact address.
368
3691.1 Tue Feb 22 20:51:16 CET 2005
370 - support [l]inux method on amd64.
371 - allow some context switches while compiling/eval'ing.
372
3731.0 Tue Aug 10 03:47:27 CEST 2004
374 - Event 0.89 fixes the bug again.
375 - fix the remaining(??) memleak. I didn't free the cache-AV for
376 padlists, so one AV per created anon-sub leaked.
377
3780.97 Fri May 14 15:23:32 CEST 2004
379 - remove stupid gcc extension that was an experiment only anyway.
380
3810.96 Thu May 13 18:09:29 CEST 2004
382 - tell people if they have yet another broken Event variant.
383 - made Coro to work _better_ with threads (it seems that, as long
384 as you use Coros in one thread only everything will work fine.
385 Looking at the perl source the problem might be missing locking
386 between Coro and some perl internal routines. That's not easily
387 fixable).
388 - (hopefully) got rid of the static xnext inside transfer.
389
3900.95 Sun Feb 15 03:20:28 CET 2004
391 - removed Coro::State::flush, implemented a new and much
392 faster caching mechanism by attaching magic to the CV.
393 - a memleak with (real) closures remains.
394 - dramatically reduced size of stacks to 65536 (linux/x86), after
395 observing that even myhttpd never had more than a kilobyte
396 of stack in use (stack is still only physically allocated in
397 pagesize increments for systems suporting mmap).
398 - fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
399 - fix for threaded perl.
400
4010.9 Sun Nov 23 04:32:39 CET 2003
402 - fix a few very hard to track down but (of course) stupid
403 memory leaks.
404 - stringify version number to avoid locale problems :(.
405 - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
406 hopefully ignoring it "just works".
407
4080.8 Wed Nov 5 19:38:40 CET 2003
409 - port to perl5.005_03, but only 5.8.x+ is supported!
410 - honor LocalAddr even without LocalPort in Coro::Socket.
411
4120.7 Tue May 27 03:12:38 CEST 2003
413 - the version jump indicates some level of testing, not gobs
414 of new features.
415 - uh... I found the prompt function in ExtUtils::MakeMaker.
416 Highly correct stuff, that is...
417 - fixed(?) a bug with die's in coroutines causing "panic: top_env".
418 the fix is not well understood by the author, so beware :(.
419
4200.652 Thu May 8 02:54:46 CEST 2003
421 - Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
422 cause version 4 doesn't have ucontext.
423 - Benjamin Reed reported that setjmp works fine on darwin,
424 so preselect it.
425
4260.651 Sat Mar 29 15:00:23 CET 2003
427 - fix a bug in Coro::Handle where some bytes could get lost
428 on reading, reported by jason@nichego.net.
429
4300.65 Sun Mar 23 00:08:26 CET 2003
431 - added a README.linux-glibc.
432 - new module Coro::Select.
433 - also save/restore PL_comppad, fixes segfaults with 5.8.1.
434 (I never claimed that I know what I am doing ;).
435 - set default to setjmp/longjmp on non-x86-linux.
436
4370.6 Thu Nov 21 11:09:06 CET 2002
438 - made lazy context switching the default.
439 - fixed the bug where SemaphoreSet::guard
440 was the same as timed_guard and timed_guard was missing.
441 - fix a memleak in Coro::Timer.
442 - reclassified context sharing as not experimental.
443
4440.534 Sun Apr 14 03:05:12 CEST 2002
445 - fixed backspace => tab in header parsing (myhttpd).
446 - added eg/readline, for elmex.
447 - Coro::Event now calls ->start on first call instead of
448 ->again, which created wrong timeouts for the first ->next.
449 - fixed a bug where Coro::Socket returned a closed socket instead
450 of nothing on ECONNREFUSED and similar error conditions.
451
4520.533 Mon Feb 18 18:49:40 CET 2002
453 - adapt to finally working Event-0.85.
454 - fixed buggy event initialization (trapped under windows, but how
455 could it possibly have worked anywhere?)
2 456
30.532 Wed Jan 16 02:45:32 CET 2002 4570.532 Wed Jan 16 02:45:32 CET 2002
4 - removed the reference to pp_entersub, might work on 458 - removed the reference to pp_entersub, might work on
5 (some) win32 perls now (testsuite works under cygwin, 459 (some) win32 perls now (testsuite works under cygwin,
6 without Event, which freezes). 460 without Event, which freezes).

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines