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Revision: 1.235
Committed: Wed Sep 19 23:45:39 2007 UTC (16 years, 8 months ago) by root
Branch: MAIN
Changes since 1.234: +1 -1 lines
Log Message:
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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 3.7
11 - added Coro::Debug, interactive coroutine debugging.
12 - added Coro::Semaphore::adjust.
13 - added Coro::Util::fork_eval.
14 - incompatibly changed Coro::Storable::freeze.
15 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
16
17 3.63 Wed May 16 14:10:06 CEST 2007
18 - implement handcoded assembly for x86/amd64 SVR ABI.
19
20 3.62 Fri Apr 27 21:36:06 CEST 2007
21 - upgrade libcoro (which might set unwind info correctly).
22 - change default on linux to setjmp/longjmp.
23
24 3.61 Thu Apr 19 12:36:18 CEST 2007
25 - Coro::Storable caused an endless loop when thawing invalid
26 pst's sometimes.
27 - use a Semaphore in Coro::Storable, as Storable doesn't
28 seem to be reentrant (although it is documented to
29 be threadsafe...).
30 - fix Coro::Signal to bring back the original unreliable
31 but stateful semantics.
32 - fixed a lot of typos in Coro.pm (patch submitted by David
33 Steinbrunner, which applied flawlessly).
34
35 3.6 Sat Apr 14 17:13:31 CEST 2007
36 - added some bugfixes to get eg/myhttpd working again.
37 - added Coro::Storable for often-cede'ing freeze/thaw.
38 - try to do a clean exit when a coroutine calls exit
39 (EXPERIMENTAL).
40 - got rid of indirect call through _coro_init.
41 - updated the partly antique examples in eg/ to
42 work again and be a bit less magic, too.
43 - fixed Coro::Signal semantics to work as documented again.
44
45 3.55 Sun Mar 25 01:20:47 CET 2007
46 - add SAVE_DEFFH to save the default filehandle and enable
47 it by default.
48 - finally move socket-operations from Coro::Socket to Coro::Handle
49 to be able to unblock foreign sockets.
50 - add Coro::State::save_also and guarded_save.
51 - add count accessor to Coro::Semaphore.
52 - add Coro::State::cctx_stacksize.
53 - just for the fun of it, do not rely on implicit context,
54 which can dramatically improve performance, but people
55 using windows-process-emulation perls do not care much about
56 performance.
57
58 3.51 Sun Mar 4 14:18:04 CET 2007
59 - fixed a problem when you weakened references to Coro::State's
60 (patch by Yuval Kogman).
61
62 3.501 Wed Feb 28 12:44:07 CET 2007
63 - rename some global symbols as macosx from hell redefines
64 them without asking.
65
66 3.5 Tue Feb 13 20:22:53 CET 2007
67 - do AnyEvent model detection earlier, avoiding problems
68 caused by first using AnyEvent and later Coro::Event.
69 - implement and document Coro::Event event objects.
70 - fix a potential problem in Coro::Event causing crashes.
71 - initialise PL_comppad when creating a new coroutine,
72 avoids crashes on early coro destruction.
73
74 3.41 Mon Jan 22 19:19:49 CET 2007
75 - readline on Coro::Handle did not support undefined $/,
76 nor did it deliver partial lines on EOF or error.
77 - implement malloc fallback for stack allocation because
78 stupid broken idiotic OSX has a stupid broken
79 idiotic fits-the-whole-os mmap "implementation" and
80 my dick feels longer if Coro is portable even to
81 obsolete platforms.
82
83 3.4 Fri Jan 19 21:52:54 CET 2007
84 - remove t/09_timer.t, as it isn't really testing much
85 but was rather flaky in practise.
86 - async_pool coro would keep arguments and callback alive until
87 it was reused.
88 - cancellation of a coroutine could cause spurious idle calls
89 in cede_notself.
90
91 3.3 Sat Jan 6 03:45:00 CET 2007
92 - implement $coro->on_destroy.
93 - Coro::Event blocking semantics have been changed,
94 documented and - hopefully - improved.
95 - fix nice adding, not subtracting, from priority.
96 - fix ->prio and api_is_ready (patch by Mark Hinds).
97 - fixed an assert ("... == prev__cctx->idle_te")
98 that could errronously trigger.
99 - fix various large and small memleaks.
100 - use a (hopefully) more stable cancel implementation
101 that immediately frees the coroutine data.
102 - cede/cede_notself return a status now.
103 - added Coro::guard function.
104 - added a global coroutine pool for jobs (on my machine,
105 I can create and execute 48k simple coros/s with async,
106 and 128k coros with async_pool).
107 - Coro::AIO now uses the coroutine priority as io priority.
108
109 3.2 Fri Dec 22 05:07:09 CET 2006
110 - improve portability to slightly older perls.
111 - use cleaner coroutine destruction.
112 - simplify configuration for users.
113 - optionally (unrecommended) prefer perl functions over
114 their coro replacements.
115
116 3.11 Tue Dec 5 13:11:24 CET 2006
117 - fixed some bogus assert's, but as perl.h disables assert even
118 without NDEBUG (thank you very much), not too many people should
119 notice (that did include myself). Andreas König noticed, though :)
120 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
121 it. Also noticed by Andreas König :)
122 - save/restore tainted status.
123 - verified to pass the testsuite on my 5.9.5.
124
125 3.1 Mon Dec 4 23:03:40 CET 2006
126 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
127 - incompatible change: transfer flags are now per-state.
128 - give a better error message on deadlock.
129 - document Coro::nready.
130 - enhanced testsuite.
131
132 3.01 Sun Dec 3 23:47:42 CET 2006
133 - forgot to include Coro::Timer.
134
135 3.0 Sun Dec 3 22:57:25 CET 2006
136 - the "FINALLY COMPLETELY STABLE" release (coming soon:
137 the "FAMOUS LAST WORDS" release).
138 - implement a new stack sharing algorithm, which uses a stack
139 pool (size currently hardcoded).
140 - make stack sharing mandatory (it no longer uses a heuristic).
141 - eval/die no longer cause weird problems under heavy use.
142 - Coro::Event could cause livelocks if it was used but
143 no Coro::Event watchers were used.
144 - Coro::Event now uses asynccheck as prepare does not
145 check for changed watchers.
146 - Coro::Event allows multiple waiting coros and will wake up one
147 per event.
148 - Coro::Event should be cleaner and more efficient now.
149 - new utility function Coro::unblock_sub.
150 - document the sad fact that Event is no longer reentrant.
151 - putting a coroutine into the ready queue twice could under
152 some circumstances lead to stack corruption.
153 - minor incompatibility: subclassing Coro::State is supported
154 directly now without going through a _coro_state member.
155 - state/coro switching is much faster now.
156 - very minor optimisations and code/documentation cleanup.
157 - avoid problems due to compiler inlining.
158 - removed timers from Coro::Timer -> use AnyEvent instead.
159 - replaced Coro::idle coroutine by (cleaner) idle handler.
160 - updated to newest libcoro.
161 - implement enhanced support for valgrind.
162 - implement is_ready and return value for ready.
163 - removed Coro::Cont, it was a misnomer (it's generators),
164 and it was somewhat annoying to get it right. Will come back
165 if somebody asks for it :)
166 - many ->wait methods and Coro::Event could return
167 spuriously without the event having happened.
168
169 2.5 Tue Nov 7 12:22:33 CET 2006
170 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
171 use AnyEvent, moved them to Coro/.
172 - added Coro::LWP which contains all the uglyness required to
173 make LWP non-blocking.
174 - should work with perl 5.9.x now (Andreas König made me do it).
175 - fixed another bug in Coro::Select when the timeout was undef.
176 - reuse PL_start_env for all coros, saves some memory per coroutine.
177 - manage PL_top_env differently, hopefully to avoid panic: top_env.
178 - timeout argument was not properly used in Coro::Socket.
179 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
180 - emulate undocumented(!) functionality of IO::Socket required
181 by LWP(!!).
182 - updated eg/lwp to work with newer lwp's.
183 - remove "FATAL: uncaught exception" prefix. Coroutines that die
184 kill the whole process, just as exceptions in the main "coroutine"
185 did already.
186
187 2.1 Wed Nov 1 23:01:13 CET 2006
188 - fix a long-standing bug in Coro::Select where select with
189 zero timeout would instead change the current default filehandle.
190 - use a simpler and hopefully more robust way to clone padlists
191 (uses less memory and a perl function instead of our own).
192 - coro can now create a stack guard area on many architectures.
193 - Coro::AIO properly reexports additional functions from IO::AIO.
194 - updated libcoro with a workaround for OS X,
195 pach and testing by Michael Schwern.
196
197 2.0 Tue Oct 24 05:47:17 CEST 2006
198 - support additional aio requests in Coro::AIO.
199
200 1.9 (never properly released due to a glitch)
201
202 1.8 Thu Feb 2 00:59:06 CET 2006
203 - applied suggested patch by SAMV to avoid problems during stupid
204 mark & sweep gc run.
205 - applied patch by Scott Walters for 5.9.3 compatibility.
206
207 1.7 Tue Dec 27 01:41:58 CET 2005
208 - added Coro::AIO, a thin wrapper around IO::AIO.
209 - improved Makefile.PL explanations.
210
211 1.6 Mon Dec 12 21:30:05 CET 2005
212 - additionally save PM_curpm might fix as-of-yet
213 unseen problems with regex matches being attributed to the
214 wrong package.
215 - add t/10_bugs.t, which currently checks against imho broken
216 perls that use 0.26MB of stack space per Perl_magic_get
217 invocation (newer linuxes) as opposed to the 0.0002MB perl
218 normally uses.
219 - make stacksize configurable for the ultimate debian experience.
220
221 1.51 Mon Dec 12 18:48:36 CET 2005
222 - remove debugging warn() accidentally left in Coro::Select.
223
224 1.5 Tue Nov 29 13:32:44 CET 2005
225 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
226 - fix Coro::Select 'select'.
227 - strict'ify some modules.
228 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
229 - use XSLoader in selected modules.
230 - remove some 5.6 compatibility cruft.
231
232 1.4 Tue Sep 6 00:11:05 CEST 2005
233 - libcoro did not take into account the trampoline on amd64,
234 when 'l'inux method was used.
235
236 1.31 Tue Aug 30 23:31:33 CEST 2005
237 - some portability fixes/workarounds.
238
239 1.3 Sat Aug 20 03:08:56 CEST 2005
240 - no code changes. module seems to work fine.
241 - improve Coro::State docs, remove reference to nonexisting
242 Coro::State::flush method.
243 - no longer autodetect windows, present it as an option instead.
244
245 1.2 Mon May 16 02:00:55 CEST 2005
246 - included libcoro.c earlier in State.xs, might improve portability.
247 - use a faster and possibly more stable Coro::Cont implementation.
248 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
249 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
250 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
251
252 1.11 Thu Mar 3 18:00:52 CET 2005
253 - change of contact address.
254
255 1.1 Tue Feb 22 20:51:16 CET 2005
256 - support [l]inux method on amd64.
257 - allow some context switches while compiling/eval'ing.
258
259 1.0 Tue Aug 10 03:47:27 CEST 2004
260 - Event 0.89 fixes the bug again.
261 - fix the remaining(??) memleak. I didn't free the cache-AV for
262 padlists, so one AV per created anon-sub leaked.
263
264 0.97 Fri May 14 15:23:32 CEST 2004
265 - remove stupid gcc extension that was an experiment only anyway.
266
267 0.96 Thu May 13 18:09:29 CEST 2004
268 - tell people if they have yet another broken Event variant.
269 - made Coro to work _better_ with threads (it seems that, as long
270 as you use Coros in one thread only everything will work fine.
271 Looking at the perl source the problem might be missing locking
272 between Coro and some perl internal routines. That's not easily
273 fixable).
274 - (hopefully) got rid of the static xnext inside transfer.
275
276 0.95 Sun Feb 15 03:20:28 CET 2004
277 - removed Coro::State::flush, implemented a new and much
278 faster caching mechanism by attaching magic to the CV.
279 - a memleak with (real) closures remains.
280 - dramatically reduced size of stacks to 65536 (linux/x86), after
281 observing that even myhttpd never had more than a kilobyte
282 of stack in use (stack is still only physically allocated in
283 pagesize increments for systems suporting mmap).
284 - fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
285 - fix for threaded perl.
286
287 0.9 Sun Nov 23 04:32:39 CET 2003
288 - fix a few very hard to track down but (of course) stupid
289 memory leaks.
290 - stringify version number to avoid locale problems :(.
291 - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
292 hopefully ignoring it "just works".
293
294 0.8 Wed Nov 5 19:38:40 CET 2003
295 - port to perl5.005_03, but only 5.8.x+ is supported!
296 - honor LocalAddr even without LocalPort in Coro::Socket.
297
298 0.7 Tue May 27 03:12:38 CEST 2003
299 - the version jump indicates some level of testing, not gobs
300 of new features.
301 - uh... I found the prompt function in ExtUtils::MakeMaker.
302 Highly correct stuff, that is...
303 - fixed(?) a bug with die's in coroutines causing "panic: top_env".
304 the fix is not well understood by the author, so beware :(.
305
306 0.652 Thu May 8 02:54:46 CEST 2003
307 - Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
308 cause version 4 doesn't have ucontext.
309 - Benjamin Reed reported that setjmp works fine on darwin,
310 so preselect it.
311
312 0.651 Sat Mar 29 15:00:23 CET 2003
313 - fix a bug in Coro::Handle where some bytes could get lost
314 on reading, reported by jason@nichego.net.
315
316 0.65 Sun Mar 23 00:08:26 CET 2003
317 - added a README.linux-glibc.
318 - new module Coro::Select.
319 - also save/restore PL_comppad, fixes segfaults with 5.8.1.
320 (I never claimed that I know what I am doing ;).
321 - set default to setjmp/longjmp on non-x86-linux.
322
323 0.6 Thu Nov 21 11:09:06 CET 2002
324 - made lazy context switching the default.
325 - fixed the bug where SemaphoreSet::guard
326 was the same as timed_guard and timed_guard was missing.
327 - fix a memleak in Coro::Timer.
328 - reclassified context sharing as not experimental.
329
330 0.534 Sun Apr 14 03:05:12 CEST 2002
331 - fixed backspace => tab in header parsing (myhttpd).
332 - added eg/readline, for elmex.
333 - Coro::Event now calls ->start on first call instead of
334 ->again, which created wrong timeouts for the first ->next.
335 - fixed a bug where Coro::Socket returned a closed socket instead
336 of nothing on ECONNREFUSED and similar error conditions.
337
338 0.533 Mon Feb 18 18:49:40 CET 2002
339 - adapt to finally working Event-0.85.
340 - fixed buggy event initialization (trapped under windows, but how
341 could it possibly have worked anywhere?)
342
343 0.532 Wed Jan 16 02:45:32 CET 2002
344 - removed the reference to pp_entersub, might work on
345 (some) win32 perls now (testsuite works under cygwin,
346 without Event, which freezes).
347
348 0.531 Mon Dec 10 22:18:44 CET 2001
349 - Fixed a bug in SemaphoreSet::timed_down.
350
351 0.53 Tue Nov 27 21:11:13 CET 2001
352 - some tests for Event.
353 - slightly different internal architecture to get refcnt into the object
354 and not the reference. might fix a few bugs, certainly did introduce
355 new ones.
356 - Coro::Timer (independent of Event).
357 - new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
358
359 0.52 Tue Nov 6 21:36:18 CET 2001
360 - ported to cygwin (trivial).
361 patch by Gerrit P. Haase <gp@familiehaase.de>.
362 - small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
363
364 0.51 Thu Nov 1 20:39:01 CET 2001
365 - terminate/cancel now work properly (otherwise termination
366 could cause a "next coroutine is not and contains not..."
367 error.
368 - added Coro::Socket::shutdown.
369 - Coro::Event::loop no is the same as Event::loop.
370 - implemented terminate with args + join.
371
372 0.5 Fri Sep 28 16:15:35 CEST 2001
373 - fixed "print" on a Coro::Handle. The print method worked.
374 - small tweaks (seem to reduce memory consumption a lot)
375 in various modules.
376 - splendid use of "no warnings" scattered throughout.
377 - added Coro::Handle::rbuf, fixed Coro::Handle::fh.
378
379 0.49 Sun Sep 16 02:42:45 CEST 2001
380 - changed some method calls to function calls for speed
381 inside Coro::Handle.
382 - make Coro::Handle use an array instead of a hash for
383 speed reasons.
384 - IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
385 sjlj and ucontext should now work.
386 - IRIX-specific port for libcoro.
387 - swapped order of accept results to match IO::Socket.
388 - changed getsock/peername to sock/peername to match IO::Socket.
389 - fixed a bug that caused segfault when returning to main task
390 under some circumstances.
391 - other bugfixes.
392
393 0.45 Sun Sep 2 02:54:01 CEST 2001
394 - new method Coro::Handle::timeout.
395 - corrected speling of set...name to get...name in Coro::Socket.
396 - Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
397 - Coro::Handle now supports fileno and FILENO.
398 - added eg/myhttpd, a web server.
399 - Coro::Socket now accepts numeric ports as well as "port(number)"
400 syntax.
401 - moved some scheduling primitives into xs code. more to come.
402 - new simple priority system.
403 - implemented Coro::Event using XS, almost four times faster!
404 - small memory corruption problem fixed (boy that was difficult).
405
406 0.13 Wed Aug 8 16:53:07 CEST 2001
407 - new method Coro::Handle::readline.
408 - added eg/lwp and Coro::Handle::autoflush, to make LWP work.
409 (see eg/lwp on how to make LWP non-blocking).
410 - renamed Coro::Socket::new_inet to new.
411 - added Coro::Util, some utility functions.
412 - die/eval now works better (still get annoying (but true ;)
413 "Callback called exit" messages).
414 - Coro::Handle now supports timeout, and Coro::Socket Timeout.
415 - much better Coro::Socket support.
416
417 0.12 Fri Jul 27 04:19:01 CEST 2001
418 - do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
419 - very experimental stack sharing algorithm. not 100% safe but
420 should work well in practise ;)
421 - added Coro::RWLock.
422 - Coro::Specific now works.
423
424 0.11 Tue Jul 24 22:49:21 CEST 2001
425 - added specialized hack for newer and older linux versions (fast).
426 - renamed Coro::Event::IO to Coro::Handle.
427 - new module Coro::Socket.
428
429 0.1 Tue Jul 24 01:47:53 CEST 2001
430 - release candidate 3. A rather new internal structure :(
431 - the great renaming: Damian Conway gave me a suitable replacement
432 for yield.
433 - added Coro/libcoro, a portable coroutine implementation for C
434 (not even perl-dependent!!!), which can be used by Coro::State.
435 - renamed SAVE_DEFSV (on xs-level only) to avoid symbol clash in
436 perl-5.6.
437 - new function Coro::Event::idle.
438 - the idle process is now overriden
439 by default in Coro::Event.
440 - Coro::Channel now enforces the size.
441 - canceling events now works in all cases.
442 - Coro state now include $_ and $@.
443 - yet another bug workaround that I do not really understand :(
444 - new module Coro::Event::IO (very undocumented) to do
445 non-blocking i/o.
446 - performance tuning.
447
448 0.08 Thu Jul 19 06:13:25 CEST 2001
449 - release candidate 2 (new functionality).
450 - add Coro::State::flush function.
451 - transfer now supports a flags value (mostly for speed ATM).
452 - might compile and work in the presence of threads now.
453 - continuations have a saner syntax.
454 - no more memleaks.
455
456 0.07 Tue Jul 17 17:40:18 CEST 2001
457 - release candidate 1 ;)
458 - slightly nicer code.
459 - fixed a scheduling bug in Coro::Event.
460
461 0.06 Tue Jul 17 04:23:24 CEST 2001
462 - ok, I found the showstopper - the same sub must not be
463 re-entered in two different coroutines, otherwise => crash. I
464 see no easy solution to this problem, except by walking the call
465 chaing and saving/restoring the cv's, which is what I do now.
466 - memory leaks still latent, especially at thread termination.
467 - Coro::Event now works (haha).
468
469 0.05 Sun Jul 15 17:32:20 CEST 2001
470 - fixed a few issues in Coro::Event.
471 - I forgot to include Coro::Event in 0.04 :(:(:(
472
473 0.04 Sun Jul 15 05:24:59 CEST 2001
474 - @_ is now properly localized.
475 - Coro::State is now easier subclassable.
476 - Coro::Cont now coroutine-aware.
477 - Coro::Specific is a low-overhead module to create
478 coroutine-specific vars.
479 - Coro::Event provides a simple interface to Event.
480
481 0.03 Fri Jul 13 14:51:52 CEST 2001
482 - transfer() now implemented in XS (beware).
483 - new module Coro::Cont for really faked continuations.
484 - big internal architecture changes: Coro::State is now
485 really low-level and can thus be used to implement other
486 interesting things, While "Coro::" implements a process-like
487 model. Still crude and subject to change.
488 - $_ and $@ are no longer being localized.
489
490 0.02 Tue Jul 10 01:38:17 CEST 2001
491 - implemented "async" attribute.
492 - $_ and $@ are now localized.
493 - added Coro::Channel.
494 - more testcases, still no docs.
495
496 0.01 Tue Jul 3 02:18:41 CEST 2001
497 - original version; copied from Convert::Scalar.
498