ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/Coro/Changes
Revision: 1.233
Committed: Sat Aug 18 17:32:07 2007 UTC (16 years, 9 months ago) by root
Branch: MAIN
Changes since 1.232: +4 -0 lines
Log Message:
added some generically useful code from crossfire

File Contents

# Content
1 Revision history for Perl extension Coro.
2
3 TODO: better (earlier) error messages on broken transfer's
4 TODO: destroy gets only called on cancel: fix(?)
5 TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO.
6 TODO: maybe implement a default message channel, very much like Erlang
7 (which is cool in a lot of important aspects (failures!),
8 but very lacking in others).
9
10 3.64
11 - added Coro::Semaphore::adjust.
12 - added Coro::Util::fork_eval.
13 - incompatibly changed Coro::Storable::freeze.
14 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
15
16 3.63 Wed May 16 14:10:06 CEST 2007
17 - implement handcoded assembly for x86/amd64 SVR ABI.
18
19 3.62 Fri Apr 27 21:36:06 CEST 2007
20 - upgrade libcoro (which might set unwind info correctly).
21 - change default on linux to setjmp/longjmp.
22
23 3.61 Thu Apr 19 12:36:18 CEST 2007
24 - Coro::Storable caused an endless loop when thawing invalid
25 pst's sometimes.
26 - use a Semaphore in Coro::Storable, as Storable doesn't
27 seem to be reentrant (although it is documented to
28 be threadsafe...).
29 - fix Coro::Signal to bring back the original unreliable
30 but stateful semantics.
31 - fixed a lot of typos in Coro.pm (patch submitted by David
32 Steinbrunner, which applied flawlessly).
33
34 3.6 Sat Apr 14 17:13:31 CEST 2007
35 - added some bugfixes to get eg/myhttpd working again.
36 - added Coro::Storable for often-cede'ing freeze/thaw.
37 - try to do a clean exit when a coroutine calls exit
38 (EXPERIMENTAL).
39 - got rid of indirect call through _coro_init.
40 - updated the partly antique examples in eg/ to
41 work again and be a bit less magic, too.
42 - fixed Coro::Signal semantics to work as documented again.
43
44 3.55 Sun Mar 25 01:20:47 CET 2007
45 - add SAVE_DEFFH to save the default filehandle and enable
46 it by default.
47 - finally move socket-operations from Coro::Socket to Coro::Handle
48 to be able to unblock foreign sockets.
49 - add Coro::State::save_also and guarded_save.
50 - add count accessor to Coro::Semaphore.
51 - add Coro::State::cctx_stacksize.
52 - just for the fun of it, do not rely on implicit context,
53 which can dramatically improve performance, but people
54 using windows-process-emulation perls do not care much about
55 performance.
56
57 3.51 Sun Mar 4 14:18:04 CET 2007
58 - fixed a problem when you weakened references to Coro::State's
59 (patch by Yuval Kogman).
60
61 3.501 Wed Feb 28 12:44:07 CET 2007
62 - rename some global symbols as macosx from hell redefines
63 them without asking.
64
65 3.5 Tue Feb 13 20:22:53 CET 2007
66 - do AnyEvent model detection earlier, avoiding problems
67 caused by first using AnyEvent and later Coro::Event.
68 - implement and document Coro::Event event objects.
69 - fix a potential problem in Coro::Event causing crashes.
70 - initialise PL_comppad when creating a new coroutine,
71 avoids crashes on early coro destruction.
72
73 3.41 Mon Jan 22 19:19:49 CET 2007
74 - readline on Coro::Handle did not support undefined $/,
75 nor did it deliver partial lines on EOF or error.
76 - implement malloc fallback for stack allocation because
77 stupid broken idiotic OSX has a stupid broken
78 idiotic fits-the-whole-os mmap "implementation" and
79 my dick feels longer if Coro is portable even to
80 obsolete platforms.
81
82 3.4 Fri Jan 19 21:52:54 CET 2007
83 - remove t/09_timer.t, as it isn't really testing much
84 but was rather flaky in practise.
85 - async_pool coro would keep arguments and callback alive until
86 it was reused.
87 - cancellation of a coroutine could cause spurious idle calls
88 in cede_notself.
89
90 3.3 Sat Jan 6 03:45:00 CET 2007
91 - implement $coro->on_destroy.
92 - Coro::Event blocking semantics have been changed,
93 documented and - hopefully - improved.
94 - fix nice adding, not subtracting, from priority.
95 - fix ->prio and api_is_ready (patch by Mark Hinds).
96 - fixed an assert ("... == prev__cctx->idle_te")
97 that could errronously trigger.
98 - fix various large and small memleaks.
99 - use a (hopefully) more stable cancel implementation
100 that immediately frees the coroutine data.
101 - cede/cede_notself return a status now.
102 - added Coro::guard function.
103 - added a global coroutine pool for jobs (on my machine,
104 I can create and execute 48k simple coros/s with async,
105 and 128k coros with async_pool).
106 - Coro::AIO now uses the coroutine priority as io priority.
107
108 3.2 Fri Dec 22 05:07:09 CET 2006
109 - improve portability to slightly older perls.
110 - use cleaner coroutine destruction.
111 - simplify configuration for users.
112 - optionally (unrecommended) prefer perl functions over
113 their coro replacements.
114
115 3.11 Tue Dec 5 13:11:24 CET 2006
116 - fixed some bogus assert's, but as perl.h disables assert even
117 without NDEBUG (thank you very much), not too many people should
118 notice (that did include myself). Andreas König noticed, though :)
119 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
120 it. Also noticed by Andreas König :)
121 - save/restore tainted status.
122 - verified to pass the testsuite on my 5.9.5.
123
124 3.1 Mon Dec 4 23:03:40 CET 2006
125 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
126 - incompatible change: transfer flags are now per-state.
127 - give a better error message on deadlock.
128 - document Coro::nready.
129 - enhanced testsuite.
130
131 3.01 Sun Dec 3 23:47:42 CET 2006
132 - forgot to include Coro::Timer.
133
134 3.0 Sun Dec 3 22:57:25 CET 2006
135 - the "FINALLY COMPLETELY STABLE" release (coming soon:
136 the "FAMOUS LAST WORDS" release).
137 - implement a new stack sharing algorithm, which uses a stack
138 pool (size currently hardcoded).
139 - make stack sharing mandatory (it no longer uses a heuristic).
140 - eval/die no longer cause weird problems under heavy use.
141 - Coro::Event could cause livelocks if it was used but
142 no Coro::Event watchers were used.
143 - Coro::Event now uses asynccheck as prepare does not
144 check for changed watchers.
145 - Coro::Event allows multiple waiting coros and will wake up one
146 per event.
147 - Coro::Event should be cleaner and more efficient now.
148 - new utility function Coro::unblock_sub.
149 - document the sad fact that Event is no longer reentrant.
150 - putting a coroutine into the ready queue twice could under
151 some circumstances lead to stack corruption.
152 - minor incompatibility: subclassing Coro::State is supported
153 directly now without going through a _coro_state member.
154 - state/coro switching is much faster now.
155 - very minor optimisations and code/documentation cleanup.
156 - avoid problems due to compiler inlining.
157 - removed timers from Coro::Timer -> use AnyEvent instead.
158 - replaced Coro::idle coroutine by (cleaner) idle handler.
159 - updated to newest libcoro.
160 - implement enhanced support for valgrind.
161 - implement is_ready and return value for ready.
162 - removed Coro::Cont, it was a misnomer (it's generators),
163 and it was somewhat annoying to get it right. Will come back
164 if somebody asks for it :)
165 - many ->wait methods and Coro::Event could return
166 spuriously without the event having happened.
167
168 2.5 Tue Nov 7 12:22:33 CET 2006
169 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
170 use AnyEvent, moved them to Coro/.
171 - added Coro::LWP which contains all the uglyness required to
172 make LWP non-blocking.
173 - should work with perl 5.9.x now (Andreas König made me do it).
174 - fixed another bug in Coro::Select when the timeout was undef.
175 - reuse PL_start_env for all coros, saves some memory per coroutine.
176 - manage PL_top_env differently, hopefully to avoid panic: top_env.
177 - timeout argument was not properly used in Coro::Socket.
178 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
179 - emulate undocumented(!) functionality of IO::Socket required
180 by LWP(!!).
181 - updated eg/lwp to work with newer lwp's.
182 - remove "FATAL: uncaught exception" prefix. Coroutines that die
183 kill the whole process, just as exceptions in the main "coroutine"
184 did already.
185
186 2.1 Wed Nov 1 23:01:13 CET 2006
187 - fix a long-standing bug in Coro::Select where select with
188 zero timeout would instead change the current default filehandle.
189 - use a simpler and hopefully more robust way to clone padlists
190 (uses less memory and a perl function instead of our own).
191 - coro can now create a stack guard area on many architectures.
192 - Coro::AIO properly reexports additional functions from IO::AIO.
193 - updated libcoro with a workaround for OS X,
194 pach and testing by Michael Schwern.
195
196 2.0 Tue Oct 24 05:47:17 CEST 2006
197 - support additional aio requests in Coro::AIO.
198
199 1.9 (never properly released due to a glitch)
200
201 1.8 Thu Feb 2 00:59:06 CET 2006
202 - applied suggested patch by SAMV to avoid problems during stupid
203 mark & sweep gc run.
204 - applied patch by Scott Walters for 5.9.3 compatibility.
205
206 1.7 Tue Dec 27 01:41:58 CET 2005
207 - added Coro::AIO, a thin wrapper around IO::AIO.
208 - improved Makefile.PL explanations.
209
210 1.6 Mon Dec 12 21:30:05 CET 2005
211 - additionally save PM_curpm might fix as-of-yet
212 unseen problems with regex matches being attributed to the
213 wrong package.
214 - add t/10_bugs.t, which currently checks against imho broken
215 perls that use 0.26MB of stack space per Perl_magic_get
216 invocation (newer linuxes) as opposed to the 0.0002MB perl
217 normally uses.
218 - make stacksize configurable for the ultimate debian experience.
219
220 1.51 Mon Dec 12 18:48:36 CET 2005
221 - remove debugging warn() accidentally left in Coro::Select.
222
223 1.5 Tue Nov 29 13:32:44 CET 2005
224 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
225 - fix Coro::Select 'select'.
226 - strict'ify some modules.
227 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
228 - use XSLoader in selected modules.
229 - remove some 5.6 compatibility cruft.
230
231 1.4 Tue Sep 6 00:11:05 CEST 2005
232 - libcoro did not take into account the trampoline on amd64,
233 when 'l'inux method was used.
234
235 1.31 Tue Aug 30 23:31:33 CEST 2005
236 - some portability fixes/workarounds.
237
238 1.3 Sat Aug 20 03:08:56 CEST 2005
239 - no code changes. module seems to work fine.
240 - improve Coro::State docs, remove reference to nonexisting
241 Coro::State::flush method.
242 - no longer autodetect windows, present it as an option instead.
243
244 1.2 Mon May 16 02:00:55 CEST 2005
245 - included libcoro.c earlier in State.xs, might improve portability.
246 - use a faster and possibly more stable Coro::Cont implementation.
247 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
248 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
249 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
250
251 1.11 Thu Mar 3 18:00:52 CET 2005
252 - change of contact address.
253
254 1.1 Tue Feb 22 20:51:16 CET 2005
255 - support [l]inux method on amd64.
256 - allow some context switches while compiling/eval'ing.
257
258 1.0 Tue Aug 10 03:47:27 CEST 2004
259 - Event 0.89 fixes the bug again.
260 - fix the remaining(??) memleak. I didn't free the cache-AV for
261 padlists, so one AV per created anon-sub leaked.
262
263 0.97 Fri May 14 15:23:32 CEST 2004
264 - remove stupid gcc extension that was an experiment only anyway.
265
266 0.96 Thu May 13 18:09:29 CEST 2004
267 - tell people if they have yet another broken Event variant.
268 - made Coro to work _better_ with threads (it seems that, as long
269 as you use Coros in one thread only everything will work fine.
270 Looking at the perl source the problem might be missing locking
271 between Coro and some perl internal routines. That's not easily
272 fixable).
273 - (hopefully) got rid of the static xnext inside transfer.
274
275 0.95 Sun Feb 15 03:20:28 CET 2004
276 - removed Coro::State::flush, implemented a new and much
277 faster caching mechanism by attaching magic to the CV.
278 - a memleak with (real) closures remains.
279 - dramatically reduced size of stacks to 65536 (linux/x86), after
280 observing that even myhttpd never had more than a kilobyte
281 of stack in use (stack is still only physically allocated in
282 pagesize increments for systems suporting mmap).
283 - fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
284 - fix for threaded perl.
285
286 0.9 Sun Nov 23 04:32:39 CET 2003
287 - fix a few very hard to track down but (of course) stupid
288 memory leaks.
289 - stringify version number to avoid locale problems :(.
290 - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
291 hopefully ignoring it "just works".
292
293 0.8 Wed Nov 5 19:38:40 CET 2003
294 - port to perl5.005_03, but only 5.8.x+ is supported!
295 - honor LocalAddr even without LocalPort in Coro::Socket.
296
297 0.7 Tue May 27 03:12:38 CEST 2003
298 - the version jump indicates some level of testing, not gobs
299 of new features.
300 - uh... I found the prompt function in ExtUtils::MakeMaker.
301 Highly correct stuff, that is...
302 - fixed(?) a bug with die's in coroutines causing "panic: top_env".
303 the fix is not well understood by the author, so beware :(.
304
305 0.652 Thu May 8 02:54:46 CEST 2003
306 - Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
307 cause version 4 doesn't have ucontext.
308 - Benjamin Reed reported that setjmp works fine on darwin,
309 so preselect it.
310
311 0.651 Sat Mar 29 15:00:23 CET 2003
312 - fix a bug in Coro::Handle where some bytes could get lost
313 on reading, reported by jason@nichego.net.
314
315 0.65 Sun Mar 23 00:08:26 CET 2003
316 - added a README.linux-glibc.
317 - new module Coro::Select.
318 - also save/restore PL_comppad, fixes segfaults with 5.8.1.
319 (I never claimed that I know what I am doing ;).
320 - set default to setjmp/longjmp on non-x86-linux.
321
322 0.6 Thu Nov 21 11:09:06 CET 2002
323 - made lazy context switching the default.
324 - fixed the bug where SemaphoreSet::guard
325 was the same as timed_guard and timed_guard was missing.
326 - fix a memleak in Coro::Timer.
327 - reclassified context sharing as not experimental.
328
329 0.534 Sun Apr 14 03:05:12 CEST 2002
330 - fixed backspace => tab in header parsing (myhttpd).
331 - added eg/readline, for elmex.
332 - Coro::Event now calls ->start on first call instead of
333 ->again, which created wrong timeouts for the first ->next.
334 - fixed a bug where Coro::Socket returned a closed socket instead
335 of nothing on ECONNREFUSED and similar error conditions.
336
337 0.533 Mon Feb 18 18:49:40 CET 2002
338 - adapt to finally working Event-0.85.
339 - fixed buggy event initialization (trapped under windows, but how
340 could it possibly have worked anywhere?)
341
342 0.532 Wed Jan 16 02:45:32 CET 2002
343 - removed the reference to pp_entersub, might work on
344 (some) win32 perls now (testsuite works under cygwin,
345 without Event, which freezes).
346
347 0.531 Mon Dec 10 22:18:44 CET 2001
348 - Fixed a bug in SemaphoreSet::timed_down.
349
350 0.53 Tue Nov 27 21:11:13 CET 2001
351 - some tests for Event.
352 - slightly different internal architecture to get refcnt into the object
353 and not the reference. might fix a few bugs, certainly did introduce
354 new ones.
355 - Coro::Timer (independent of Event).
356 - new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
357
358 0.52 Tue Nov 6 21:36:18 CET 2001
359 - ported to cygwin (trivial).
360 patch by Gerrit P. Haase <gp@familiehaase.de>.
361 - small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
362
363 0.51 Thu Nov 1 20:39:01 CET 2001
364 - terminate/cancel now work properly (otherwise termination
365 could cause a "next coroutine is not and contains not..."
366 error.
367 - added Coro::Socket::shutdown.
368 - Coro::Event::loop no is the same as Event::loop.
369 - implemented terminate with args + join.
370
371 0.5 Fri Sep 28 16:15:35 CEST 2001
372 - fixed "print" on a Coro::Handle. The print method worked.
373 - small tweaks (seem to reduce memory consumption a lot)
374 in various modules.
375 - splendid use of "no warnings" scattered throughout.
376 - added Coro::Handle::rbuf, fixed Coro::Handle::fh.
377
378 0.49 Sun Sep 16 02:42:45 CEST 2001
379 - changed some method calls to function calls for speed
380 inside Coro::Handle.
381 - make Coro::Handle use an array instead of a hash for
382 speed reasons.
383 - IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
384 sjlj and ucontext should now work.
385 - IRIX-specific port for libcoro.
386 - swapped order of accept results to match IO::Socket.
387 - changed getsock/peername to sock/peername to match IO::Socket.
388 - fixed a bug that caused segfault when returning to main task
389 under some circumstances.
390 - other bugfixes.
391
392 0.45 Sun Sep 2 02:54:01 CEST 2001
393 - new method Coro::Handle::timeout.
394 - corrected speling of set...name to get...name in Coro::Socket.
395 - Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
396 - Coro::Handle now supports fileno and FILENO.
397 - added eg/myhttpd, a web server.
398 - Coro::Socket now accepts numeric ports as well as "port(number)"
399 syntax.
400 - moved some scheduling primitives into xs code. more to come.
401 - new simple priority system.
402 - implemented Coro::Event using XS, almost four times faster!
403 - small memory corruption problem fixed (boy that was difficult).
404
405 0.13 Wed Aug 8 16:53:07 CEST 2001
406 - new method Coro::Handle::readline.
407 - added eg/lwp and Coro::Handle::autoflush, to make LWP work.
408 (see eg/lwp on how to make LWP non-blocking).
409 - renamed Coro::Socket::new_inet to new.
410 - added Coro::Util, some utility functions.
411 - die/eval now works better (still get annoying (but true ;)
412 "Callback called exit" messages).
413 - Coro::Handle now supports timeout, and Coro::Socket Timeout.
414 - much better Coro::Socket support.
415
416 0.12 Fri Jul 27 04:19:01 CEST 2001
417 - do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
418 - very experimental stack sharing algorithm. not 100% safe but
419 should work well in practise ;)
420 - added Coro::RWLock.
421 - Coro::Specific now works.
422
423 0.11 Tue Jul 24 22:49:21 CEST 2001
424 - added specialized hack for newer and older linux versions (fast).
425 - renamed Coro::Event::IO to Coro::Handle.
426 - new module Coro::Socket.
427
428 0.1 Tue Jul 24 01:47:53 CEST 2001
429 - release candidate 3. A rather new internal structure :(
430 - the great renaming: Damian Conway gave me a suitable replacement
431 for yield.
432 - added Coro/libcoro, a portable coroutine implementation for C
433 (not even perl-dependent!!!), which can be used by Coro::State.
434 - renamed SAVE_DEFSV (on xs-level only) to avoid symbol clash in
435 perl-5.6.
436 - new function Coro::Event::idle.
437 - the idle process is now overriden
438 by default in Coro::Event.
439 - Coro::Channel now enforces the size.
440 - canceling events now works in all cases.
441 - Coro state now include $_ and $@.
442 - yet another bug workaround that I do not really understand :(
443 - new module Coro::Event::IO (very undocumented) to do
444 non-blocking i/o.
445 - performance tuning.
446
447 0.08 Thu Jul 19 06:13:25 CEST 2001
448 - release candidate 2 (new functionality).
449 - add Coro::State::flush function.
450 - transfer now supports a flags value (mostly for speed ATM).
451 - might compile and work in the presence of threads now.
452 - continuations have a saner syntax.
453 - no more memleaks.
454
455 0.07 Tue Jul 17 17:40:18 CEST 2001
456 - release candidate 1 ;)
457 - slightly nicer code.
458 - fixed a scheduling bug in Coro::Event.
459
460 0.06 Tue Jul 17 04:23:24 CEST 2001
461 - ok, I found the showstopper - the same sub must not be
462 re-entered in two different coroutines, otherwise => crash. I
463 see no easy solution to this problem, except by walking the call
464 chaing and saving/restoring the cv's, which is what I do now.
465 - memory leaks still latent, especially at thread termination.
466 - Coro::Event now works (haha).
467
468 0.05 Sun Jul 15 17:32:20 CEST 2001
469 - fixed a few issues in Coro::Event.
470 - I forgot to include Coro::Event in 0.04 :(:(:(
471
472 0.04 Sun Jul 15 05:24:59 CEST 2001
473 - @_ is now properly localized.
474 - Coro::State is now easier subclassable.
475 - Coro::Cont now coroutine-aware.
476 - Coro::Specific is a low-overhead module to create
477 coroutine-specific vars.
478 - Coro::Event provides a simple interface to Event.
479
480 0.03 Fri Jul 13 14:51:52 CEST 2001
481 - transfer() now implemented in XS (beware).
482 - new module Coro::Cont for really faked continuations.
483 - big internal architecture changes: Coro::State is now
484 really low-level and can thus be used to implement other
485 interesting things, While "Coro::" implements a process-like
486 model. Still crude and subject to change.
487 - $_ and $@ are no longer being localized.
488
489 0.02 Tue Jul 10 01:38:17 CEST 2001
490 - implemented "async" attribute.
491 - $_ and $@ are now localized.
492 - added Coro::Channel.
493 - more testcases, still no docs.
494
495 0.01 Tue Jul 3 02:18:41 CEST 2001
496 - original version; copied from Convert::Scalar.
497