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Revision: 1.248
Committed: Tue Oct 2 10:38:17 2007 UTC (16 years, 7 months ago) by root
Branch: MAIN
Changes since 1.247: +1 -0 lines
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# Content
1 Revision history for Perl extension Coro.
2
3 TODO: destroy gets only called on cancel: fix(?)
4 TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO.
5 TODO: maybe implement a default message channel, very much like Erlang
6 (which is cool in a lot of important aspects (failures!),
7 but very lacking in others (higher level ipc)).
8
9 3.8
10 - incompatibly changed Coro::Storable::freeze.
11 - major new feature: added Coro::Debug, for interactive coroutine
12 debugging, tracing and much more.
13 - added Coro::Semaphore::adjust.
14 - added Coro::Util::fork_eval.
15 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
16 - added Coro::killall.
17 - reduce initial stack sizes to allow for "micro-coroutines".
18 - better async_pool resource management, moved parts of async_pool
19 handling to XS (major speed improvement).
20 - actually croak before modifying important data structures.
21 - refuse to transfer while compiling.
22 - possibly support eval EXPR better now.
23 - enable assembly method per default on linux+bsd x86+amd64.
24 - many minor tweaks.
25
26 3.63 Wed May 16 14:10:06 CEST 2007
27 - implement handcoded assembly for x86/amd64 SVR ABI.
28
29 3.62 Fri Apr 27 21:36:06 CEST 2007
30 - upgrade libcoro (which might set unwind info correctly).
31 - change default on linux to setjmp/longjmp.
32
33 3.61 Thu Apr 19 12:36:18 CEST 2007
34 - Coro::Storable caused an endless loop when thawing invalid
35 pst's sometimes.
36 - use a Semaphore in Coro::Storable, as Storable doesn't
37 seem to be reentrant (although it is documented to
38 be threadsafe...).
39 - fix Coro::Signal to bring back the original unreliable
40 but stateful semantics.
41 - fixed a lot of typos in Coro.pm (patch submitted by David
42 Steinbrunner, which applied flawlessly).
43
44 3.6 Sat Apr 14 17:13:31 CEST 2007
45 - added some bugfixes to get eg/myhttpd working again.
46 - added Coro::Storable for often-cede'ing freeze/thaw.
47 - try to do a clean exit when a coroutine calls exit
48 (EXPERIMENTAL).
49 - got rid of indirect call through _coro_init.
50 - updated the partly antique examples in eg/ to
51 work again and be a bit less magic, too.
52 - fixed Coro::Signal semantics to work as documented again.
53
54 3.55 Sun Mar 25 01:20:47 CET 2007
55 - add SAVE_DEFFH to save the default filehandle and enable
56 it by default.
57 - finally move socket-operations from Coro::Socket to Coro::Handle
58 to be able to unblock foreign sockets.
59 - add Coro::State::save_also and guarded_save.
60 - add count accessor to Coro::Semaphore.
61 - add Coro::State::cctx_stacksize.
62 - just for the fun of it, do not rely on implicit context,
63 which can dramatically improve performance, but people
64 using windows-process-emulation perls do not care much about
65 performance.
66
67 3.51 Sun Mar 4 14:18:04 CET 2007
68 - fixed a problem when you weakened references to Coro::State's
69 (patch by Yuval Kogman).
70
71 3.501 Wed Feb 28 12:44:07 CET 2007
72 - rename some global symbols as macosx from hell redefines
73 them without asking.
74
75 3.5 Tue Feb 13 20:22:53 CET 2007
76 - do AnyEvent model detection earlier, avoiding problems
77 caused by first using AnyEvent and later Coro::Event.
78 - implement and document Coro::Event event objects.
79 - fix a potential problem in Coro::Event causing crashes.
80 - initialise PL_comppad when creating a new coroutine,
81 avoids crashes on early coro destruction.
82
83 3.41 Mon Jan 22 19:19:49 CET 2007
84 - readline on Coro::Handle did not support undefined $/,
85 nor did it deliver partial lines on EOF or error.
86 - implement malloc fallback for stack allocation because
87 stupid broken idiotic OSX has a stupid broken
88 idiotic fits-the-whole-os mmap "implementation" and
89 my dick feels longer if Coro is portable even to
90 obsolete platforms.
91
92 3.4 Fri Jan 19 21:52:54 CET 2007
93 - remove t/09_timer.t, as it isn't really testing much
94 but was rather flaky in practise.
95 - async_pool coro would keep arguments and callback alive until
96 it was reused.
97 - cancellation of a coroutine could cause spurious idle calls
98 in cede_notself.
99
100 3.3 Sat Jan 6 03:45:00 CET 2007
101 - implement $coro->on_destroy.
102 - Coro::Event blocking semantics have been changed,
103 documented and - hopefully - improved.
104 - fix nice adding, not subtracting, from priority.
105 - fix ->prio and api_is_ready (patch by Mark Hinds).
106 - fixed an assert ("... == prev__cctx->idle_te")
107 that could errronously trigger.
108 - fix various large and small memleaks.
109 - use a (hopefully) more stable cancel implementation
110 that immediately frees the coroutine data.
111 - cede/cede_notself return a status now.
112 - added Coro::guard function.
113 - added a global coroutine pool for jobs (on my machine,
114 I can create and execute 48k simple coros/s with async,
115 and 128k coros with async_pool).
116 - Coro::AIO now uses the coroutine priority as io priority.
117
118 3.2 Fri Dec 22 05:07:09 CET 2006
119 - improve portability to slightly older perls.
120 - use cleaner coroutine destruction.
121 - simplify configuration for users.
122 - optionally (unrecommended) prefer perl functions over
123 their coro replacements.
124
125 3.11 Tue Dec 5 13:11:24 CET 2006
126 - fixed some bogus assert's, but as perl.h disables assert even
127 without NDEBUG (thank you very much), not too many people should
128 notice (that did include myself). Andreas König noticed, though :)
129 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
130 it. Also noticed by Andreas König :)
131 - save/restore tainted status.
132 - verified to pass the testsuite on my 5.9.5.
133
134 3.1 Mon Dec 4 23:03:40 CET 2006
135 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
136 - incompatible change: transfer flags are now per-state.
137 - give a better error message on deadlock.
138 - document Coro::nready.
139 - enhanced testsuite.
140
141 3.01 Sun Dec 3 23:47:42 CET 2006
142 - forgot to include Coro::Timer.
143
144 3.0 Sun Dec 3 22:57:25 CET 2006
145 - the "FINALLY COMPLETELY STABLE" release (coming soon:
146 the "FAMOUS LAST WORDS" release).
147 - implement a new stack sharing algorithm, which uses a stack
148 pool (size currently hardcoded).
149 - make stack sharing mandatory (it no longer uses a heuristic).
150 - eval/die no longer cause weird problems under heavy use.
151 - Coro::Event could cause livelocks if it was used but
152 no Coro::Event watchers were used.
153 - Coro::Event now uses asynccheck as prepare does not
154 check for changed watchers.
155 - Coro::Event allows multiple waiting coros and will wake up one
156 per event.
157 - Coro::Event should be cleaner and more efficient now.
158 - new utility function Coro::unblock_sub.
159 - document the sad fact that Event is no longer reentrant.
160 - putting a coroutine into the ready queue twice could under
161 some circumstances lead to stack corruption.
162 - minor incompatibility: subclassing Coro::State is supported
163 directly now without going through a _coro_state member.
164 - state/coro switching is much faster now.
165 - very minor optimisations and code/documentation cleanup.
166 - avoid problems due to compiler inlining.
167 - removed timers from Coro::Timer -> use AnyEvent instead.
168 - replaced Coro::idle coroutine by (cleaner) idle handler.
169 - updated to newest libcoro.
170 - implement enhanced support for valgrind.
171 - implement is_ready and return value for ready.
172 - removed Coro::Cont, it was a misnomer (it's generators),
173 and it was somewhat annoying to get it right. Will come back
174 if somebody asks for it :)
175 - many ->wait methods and Coro::Event could return
176 spuriously without the event having happened.
177
178 2.5 Tue Nov 7 12:22:33 CET 2006
179 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
180 use AnyEvent, moved them to Coro/.
181 - added Coro::LWP which contains all the uglyness required to
182 make LWP non-blocking.
183 - should work with perl 5.9.x now (Andreas König made me do it).
184 - fixed another bug in Coro::Select when the timeout was undef.
185 - reuse PL_start_env for all coros, saves some memory per coroutine.
186 - manage PL_top_env differently, hopefully to avoid panic: top_env.
187 - timeout argument was not properly used in Coro::Socket.
188 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
189 - emulate undocumented(!) functionality of IO::Socket required
190 by LWP(!!).
191 - updated eg/lwp to work with newer lwp's.
192 - remove "FATAL: uncaught exception" prefix. Coroutines that die
193 kill the whole process, just as exceptions in the main "coroutine"
194 did already.
195
196 2.1 Wed Nov 1 23:01:13 CET 2006
197 - fix a long-standing bug in Coro::Select where select with
198 zero timeout would instead change the current default filehandle.
199 - use a simpler and hopefully more robust way to clone padlists
200 (uses less memory and a perl function instead of our own).
201 - coro can now create a stack guard area on many architectures.
202 - Coro::AIO properly reexports additional functions from IO::AIO.
203 - updated libcoro with a workaround for OS X,
204 pach and testing by Michael Schwern.
205
206 2.0 Tue Oct 24 05:47:17 CEST 2006
207 - support additional aio requests in Coro::AIO.
208
209 1.9 (never properly released due to a glitch)
210
211 1.8 Thu Feb 2 00:59:06 CET 2006
212 - applied suggested patch by SAMV to avoid problems during stupid
213 mark & sweep gc run.
214 - applied patch by Scott Walters for 5.9.3 compatibility.
215
216 1.7 Tue Dec 27 01:41:58 CET 2005
217 - added Coro::AIO, a thin wrapper around IO::AIO.
218 - improved Makefile.PL explanations.
219
220 1.6 Mon Dec 12 21:30:05 CET 2005
221 - additionally save PM_curpm might fix as-of-yet
222 unseen problems with regex matches being attributed to the
223 wrong package.
224 - add t/10_bugs.t, which currently checks against imho broken
225 perls that use 0.26MB of stack space per Perl_magic_get
226 invocation (newer linuxes) as opposed to the 0.0002MB perl
227 normally uses.
228 - make stacksize configurable for the ultimate debian experience.
229
230 1.51 Mon Dec 12 18:48:36 CET 2005
231 - remove debugging warn() accidentally left in Coro::Select.
232
233 1.5 Tue Nov 29 13:32:44 CET 2005
234 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
235 - fix Coro::Select 'select'.
236 - strict'ify some modules.
237 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
238 - use XSLoader in selected modules.
239 - remove some 5.6 compatibility cruft.
240
241 1.4 Tue Sep 6 00:11:05 CEST 2005
242 - libcoro did not take into account the trampoline on amd64,
243 when 'l'inux method was used.
244
245 1.31 Tue Aug 30 23:31:33 CEST 2005
246 - some portability fixes/workarounds.
247
248 1.3 Sat Aug 20 03:08:56 CEST 2005
249 - no code changes. module seems to work fine.
250 - improve Coro::State docs, remove reference to nonexisting
251 Coro::State::flush method.
252 - no longer autodetect windows, present it as an option instead.
253
254 1.2 Mon May 16 02:00:55 CEST 2005
255 - included libcoro.c earlier in State.xs, might improve portability.
256 - use a faster and possibly more stable Coro::Cont implementation.
257 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
258 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
259 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
260
261 1.11 Thu Mar 3 18:00:52 CET 2005
262 - change of contact address.
263
264 1.1 Tue Feb 22 20:51:16 CET 2005
265 - support [l]inux method on amd64.
266 - allow some context switches while compiling/eval'ing.
267
268 1.0 Tue Aug 10 03:47:27 CEST 2004
269 - Event 0.89 fixes the bug again.
270 - fix the remaining(??) memleak. I didn't free the cache-AV for
271 padlists, so one AV per created anon-sub leaked.
272
273 0.97 Fri May 14 15:23:32 CEST 2004
274 - remove stupid gcc extension that was an experiment only anyway.
275
276 0.96 Thu May 13 18:09:29 CEST 2004
277 - tell people if they have yet another broken Event variant.
278 - made Coro to work _better_ with threads (it seems that, as long
279 as you use Coros in one thread only everything will work fine.
280 Looking at the perl source the problem might be missing locking
281 between Coro and some perl internal routines. That's not easily
282 fixable).
283 - (hopefully) got rid of the static xnext inside transfer.
284
285 0.95 Sun Feb 15 03:20:28 CET 2004
286 - removed Coro::State::flush, implemented a new and much
287 faster caching mechanism by attaching magic to the CV.
288 - a memleak with (real) closures remains.
289 - dramatically reduced size of stacks to 65536 (linux/x86), after
290 observing that even myhttpd never had more than a kilobyte
291 of stack in use (stack is still only physically allocated in
292 pagesize increments for systems suporting mmap).
293 - fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
294 - fix for threaded perl.
295
296 0.9 Sun Nov 23 04:32:39 CET 2003
297 - fix a few very hard to track down but (of course) stupid
298 memory leaks.
299 - stringify version number to avoid locale problems :(.
300 - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
301 hopefully ignoring it "just works".
302
303 0.8 Wed Nov 5 19:38:40 CET 2003
304 - port to perl5.005_03, but only 5.8.x+ is supported!
305 - honor LocalAddr even without LocalPort in Coro::Socket.
306
307 0.7 Tue May 27 03:12:38 CEST 2003
308 - the version jump indicates some level of testing, not gobs
309 of new features.
310 - uh... I found the prompt function in ExtUtils::MakeMaker.
311 Highly correct stuff, that is...
312 - fixed(?) a bug with die's in coroutines causing "panic: top_env".
313 the fix is not well understood by the author, so beware :(.
314
315 0.652 Thu May 8 02:54:46 CEST 2003
316 - Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
317 cause version 4 doesn't have ucontext.
318 - Benjamin Reed reported that setjmp works fine on darwin,
319 so preselect it.
320
321 0.651 Sat Mar 29 15:00:23 CET 2003
322 - fix a bug in Coro::Handle where some bytes could get lost
323 on reading, reported by jason@nichego.net.
324
325 0.65 Sun Mar 23 00:08:26 CET 2003
326 - added a README.linux-glibc.
327 - new module Coro::Select.
328 - also save/restore PL_comppad, fixes segfaults with 5.8.1.
329 (I never claimed that I know what I am doing ;).
330 - set default to setjmp/longjmp on non-x86-linux.
331
332 0.6 Thu Nov 21 11:09:06 CET 2002
333 - made lazy context switching the default.
334 - fixed the bug where SemaphoreSet::guard
335 was the same as timed_guard and timed_guard was missing.
336 - fix a memleak in Coro::Timer.
337 - reclassified context sharing as not experimental.
338
339 0.534 Sun Apr 14 03:05:12 CEST 2002
340 - fixed backspace => tab in header parsing (myhttpd).
341 - added eg/readline, for elmex.
342 - Coro::Event now calls ->start on first call instead of
343 ->again, which created wrong timeouts for the first ->next.
344 - fixed a bug where Coro::Socket returned a closed socket instead
345 of nothing on ECONNREFUSED and similar error conditions.
346
347 0.533 Mon Feb 18 18:49:40 CET 2002
348 - adapt to finally working Event-0.85.
349 - fixed buggy event initialization (trapped under windows, but how
350 could it possibly have worked anywhere?)
351
352 0.532 Wed Jan 16 02:45:32 CET 2002
353 - removed the reference to pp_entersub, might work on
354 (some) win32 perls now (testsuite works under cygwin,
355 without Event, which freezes).
356
357 0.531 Mon Dec 10 22:18:44 CET 2001
358 - Fixed a bug in SemaphoreSet::timed_down.
359
360 0.53 Tue Nov 27 21:11:13 CET 2001
361 - some tests for Event.
362 - slightly different internal architecture to get refcnt into the object
363 and not the reference. might fix a few bugs, certainly did introduce
364 new ones.
365 - Coro::Timer (independent of Event).
366 - new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
367
368 0.52 Tue Nov 6 21:36:18 CET 2001
369 - ported to cygwin (trivial).
370 patch by Gerrit P. Haase <gp@familiehaase.de>.
371 - small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
372
373 0.51 Thu Nov 1 20:39:01 CET 2001
374 - terminate/cancel now work properly (otherwise termination
375 could cause a "next coroutine is not and contains not..."
376 error.
377 - added Coro::Socket::shutdown.
378 - Coro::Event::loop no is the same as Event::loop.
379 - implemented terminate with args + join.
380
381 0.5 Fri Sep 28 16:15:35 CEST 2001
382 - fixed "print" on a Coro::Handle. The print method worked.
383 - small tweaks (seem to reduce memory consumption a lot)
384 in various modules.
385 - splendid use of "no warnings" scattered throughout.
386 - added Coro::Handle::rbuf, fixed Coro::Handle::fh.
387
388 0.49 Sun Sep 16 02:42:45 CEST 2001
389 - changed some method calls to function calls for speed
390 inside Coro::Handle.
391 - make Coro::Handle use an array instead of a hash for
392 speed reasons.
393 - IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
394 sjlj and ucontext should now work.
395 - IRIX-specific port for libcoro.
396 - swapped order of accept results to match IO::Socket.
397 - changed getsock/peername to sock/peername to match IO::Socket.
398 - fixed a bug that caused segfault when returning to main task
399 under some circumstances.
400 - other bugfixes.
401
402 0.45 Sun Sep 2 02:54:01 CEST 2001
403 - new method Coro::Handle::timeout.
404 - corrected speling of set...name to get...name in Coro::Socket.
405 - Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
406 - Coro::Handle now supports fileno and FILENO.
407 - added eg/myhttpd, a web server.
408 - Coro::Socket now accepts numeric ports as well as "port(number)"
409 syntax.
410 - moved some scheduling primitives into xs code. more to come.
411 - new simple priority system.
412 - implemented Coro::Event using XS, almost four times faster!
413 - small memory corruption problem fixed (boy that was difficult).
414
415 0.13 Wed Aug 8 16:53:07 CEST 2001
416 - new method Coro::Handle::readline.
417 - added eg/lwp and Coro::Handle::autoflush, to make LWP work.
418 (see eg/lwp on how to make LWP non-blocking).
419 - renamed Coro::Socket::new_inet to new.
420 - added Coro::Util, some utility functions.
421 - die/eval now works better (still get annoying (but true ;)
422 "Callback called exit" messages).
423 - Coro::Handle now supports timeout, and Coro::Socket Timeout.
424 - much better Coro::Socket support.
425
426 0.12 Fri Jul 27 04:19:01 CEST 2001
427 - do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
428 - very experimental stack sharing algorithm. not 100% safe but
429 should work well in practise ;)
430 - added Coro::RWLock.
431 - Coro::Specific now works.
432
433 0.11 Tue Jul 24 22:49:21 CEST 2001
434 - added specialized hack for newer and older linux versions (fast).
435 - renamed Coro::Event::IO to Coro::Handle.
436 - new module Coro::Socket.
437
438 0.1 Tue Jul 24 01:47:53 CEST 2001
439 - release candidate 3. A rather new internal structure :(
440 - the great renaming: Damian Conway gave me a suitable replacement
441 for yield.
442 - added Coro/libcoro, a portable coroutine implementation for C
443 (not even perl-dependent!!!), which can be used by Coro::State.
444 - renamed SAVE_DEFSV (on xs-level only) to avoid symbol clash in
445 perl-5.6.
446 - new function Coro::Event::idle.
447 - the idle process is now overriden
448 by default in Coro::Event.
449 - Coro::Channel now enforces the size.
450 - canceling events now works in all cases.
451 - Coro state now include $_ and $@.
452 - yet another bug workaround that I do not really understand :(
453 - new module Coro::Event::IO (very undocumented) to do
454 non-blocking i/o.
455 - performance tuning.
456
457 0.08 Thu Jul 19 06:13:25 CEST 2001
458 - release candidate 2 (new functionality).
459 - add Coro::State::flush function.
460 - transfer now supports a flags value (mostly for speed ATM).
461 - might compile and work in the presence of threads now.
462 - continuations have a saner syntax.
463 - no more memleaks.
464
465 0.07 Tue Jul 17 17:40:18 CEST 2001
466 - release candidate 1 ;)
467 - slightly nicer code.
468 - fixed a scheduling bug in Coro::Event.
469
470 0.06 Tue Jul 17 04:23:24 CEST 2001
471 - ok, I found the showstopper - the same sub must not be
472 re-entered in two different coroutines, otherwise => crash. I
473 see no easy solution to this problem, except by walking the call
474 chaing and saving/restoring the cv's, which is what I do now.
475 - memory leaks still latent, especially at thread termination.
476 - Coro::Event now works (haha).
477
478 0.05 Sun Jul 15 17:32:20 CEST 2001
479 - fixed a few issues in Coro::Event.
480 - I forgot to include Coro::Event in 0.04 :(:(:(
481
482 0.04 Sun Jul 15 05:24:59 CEST 2001
483 - @_ is now properly localized.
484 - Coro::State is now easier subclassable.
485 - Coro::Cont now coroutine-aware.
486 - Coro::Specific is a low-overhead module to create
487 coroutine-specific vars.
488 - Coro::Event provides a simple interface to Event.
489
490 0.03 Fri Jul 13 14:51:52 CEST 2001
491 - transfer() now implemented in XS (beware).
492 - new module Coro::Cont for really faked continuations.
493 - big internal architecture changes: Coro::State is now
494 really low-level and can thus be used to implement other
495 interesting things, While "Coro::" implements a process-like
496 model. Still crude and subject to change.
497 - $_ and $@ are no longer being localized.
498
499 0.02 Tue Jul 10 01:38:17 CEST 2001
500 - implemented "async" attribute.
501 - $_ and $@ are now localized.
502 - added Coro::Channel.
503 - more testcases, still no docs.
504
505 0.01 Tue Jul 3 02:18:41 CEST 2001
506 - original version; copied from Convert::Scalar.
507