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Revision: 1.237
Committed: Fri Sep 21 02:23:48 2007 UTC (16 years, 8 months ago) by root
Branch: MAIN
Changes since 1.236: +1 -0 lines
Log Message:
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# 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 - reduce initial stack sizes to allow for "micro-coroutines".
17 - many minor tweaks.
18
19 3.63 Wed May 16 14:10:06 CEST 2007
20 - implement handcoded assembly for x86/amd64 SVR ABI.
21
22 3.62 Fri Apr 27 21:36:06 CEST 2007
23 - upgrade libcoro (which might set unwind info correctly).
24 - change default on linux to setjmp/longjmp.
25
26 3.61 Thu Apr 19 12:36:18 CEST 2007
27 - Coro::Storable caused an endless loop when thawing invalid
28 pst's sometimes.
29 - use a Semaphore in Coro::Storable, as Storable doesn't
30 seem to be reentrant (although it is documented to
31 be threadsafe...).
32 - fix Coro::Signal to bring back the original unreliable
33 but stateful semantics.
34 - fixed a lot of typos in Coro.pm (patch submitted by David
35 Steinbrunner, which applied flawlessly).
36
37 3.6 Sat Apr 14 17:13:31 CEST 2007
38 - added some bugfixes to get eg/myhttpd working again.
39 - added Coro::Storable for often-cede'ing freeze/thaw.
40 - try to do a clean exit when a coroutine calls exit
41 (EXPERIMENTAL).
42 - got rid of indirect call through _coro_init.
43 - updated the partly antique examples in eg/ to
44 work again and be a bit less magic, too.
45 - fixed Coro::Signal semantics to work as documented again.
46
47 3.55 Sun Mar 25 01:20:47 CET 2007
48 - add SAVE_DEFFH to save the default filehandle and enable
49 it by default.
50 - finally move socket-operations from Coro::Socket to Coro::Handle
51 to be able to unblock foreign sockets.
52 - add Coro::State::save_also and guarded_save.
53 - add count accessor to Coro::Semaphore.
54 - add Coro::State::cctx_stacksize.
55 - just for the fun of it, do not rely on implicit context,
56 which can dramatically improve performance, but people
57 using windows-process-emulation perls do not care much about
58 performance.
59
60 3.51 Sun Mar 4 14:18:04 CET 2007
61 - fixed a problem when you weakened references to Coro::State's
62 (patch by Yuval Kogman).
63
64 3.501 Wed Feb 28 12:44:07 CET 2007
65 - rename some global symbols as macosx from hell redefines
66 them without asking.
67
68 3.5 Tue Feb 13 20:22:53 CET 2007
69 - do AnyEvent model detection earlier, avoiding problems
70 caused by first using AnyEvent and later Coro::Event.
71 - implement and document Coro::Event event objects.
72 - fix a potential problem in Coro::Event causing crashes.
73 - initialise PL_comppad when creating a new coroutine,
74 avoids crashes on early coro destruction.
75
76 3.41 Mon Jan 22 19:19:49 CET 2007
77 - readline on Coro::Handle did not support undefined $/,
78 nor did it deliver partial lines on EOF or error.
79 - implement malloc fallback for stack allocation because
80 stupid broken idiotic OSX has a stupid broken
81 idiotic fits-the-whole-os mmap "implementation" and
82 my dick feels longer if Coro is portable even to
83 obsolete platforms.
84
85 3.4 Fri Jan 19 21:52:54 CET 2007
86 - remove t/09_timer.t, as it isn't really testing much
87 but was rather flaky in practise.
88 - async_pool coro would keep arguments and callback alive until
89 it was reused.
90 - cancellation of a coroutine could cause spurious idle calls
91 in cede_notself.
92
93 3.3 Sat Jan 6 03:45:00 CET 2007
94 - implement $coro->on_destroy.
95 - Coro::Event blocking semantics have been changed,
96 documented and - hopefully - improved.
97 - fix nice adding, not subtracting, from priority.
98 - fix ->prio and api_is_ready (patch by Mark Hinds).
99 - fixed an assert ("... == prev__cctx->idle_te")
100 that could errronously trigger.
101 - fix various large and small memleaks.
102 - use a (hopefully) more stable cancel implementation
103 that immediately frees the coroutine data.
104 - cede/cede_notself return a status now.
105 - added Coro::guard function.
106 - added a global coroutine pool for jobs (on my machine,
107 I can create and execute 48k simple coros/s with async,
108 and 128k coros with async_pool).
109 - Coro::AIO now uses the coroutine priority as io priority.
110
111 3.2 Fri Dec 22 05:07:09 CET 2006
112 - improve portability to slightly older perls.
113 - use cleaner coroutine destruction.
114 - simplify configuration for users.
115 - optionally (unrecommended) prefer perl functions over
116 their coro replacements.
117
118 3.11 Tue Dec 5 13:11:24 CET 2006
119 - fixed some bogus assert's, but as perl.h disables assert even
120 without NDEBUG (thank you very much), not too many people should
121 notice (that did include myself). Andreas König noticed, though :)
122 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
123 it. Also noticed by Andreas König :)
124 - save/restore tainted status.
125 - verified to pass the testsuite on my 5.9.5.
126
127 3.1 Mon Dec 4 23:03:40 CET 2006
128 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
129 - incompatible change: transfer flags are now per-state.
130 - give a better error message on deadlock.
131 - document Coro::nready.
132 - enhanced testsuite.
133
134 3.01 Sun Dec 3 23:47:42 CET 2006
135 - forgot to include Coro::Timer.
136
137 3.0 Sun Dec 3 22:57:25 CET 2006
138 - the "FINALLY COMPLETELY STABLE" release (coming soon:
139 the "FAMOUS LAST WORDS" release).
140 - implement a new stack sharing algorithm, which uses a stack
141 pool (size currently hardcoded).
142 - make stack sharing mandatory (it no longer uses a heuristic).
143 - eval/die no longer cause weird problems under heavy use.
144 - Coro::Event could cause livelocks if it was used but
145 no Coro::Event watchers were used.
146 - Coro::Event now uses asynccheck as prepare does not
147 check for changed watchers.
148 - Coro::Event allows multiple waiting coros and will wake up one
149 per event.
150 - Coro::Event should be cleaner and more efficient now.
151 - new utility function Coro::unblock_sub.
152 - document the sad fact that Event is no longer reentrant.
153 - putting a coroutine into the ready queue twice could under
154 some circumstances lead to stack corruption.
155 - minor incompatibility: subclassing Coro::State is supported
156 directly now without going through a _coro_state member.
157 - state/coro switching is much faster now.
158 - very minor optimisations and code/documentation cleanup.
159 - avoid problems due to compiler inlining.
160 - removed timers from Coro::Timer -> use AnyEvent instead.
161 - replaced Coro::idle coroutine by (cleaner) idle handler.
162 - updated to newest libcoro.
163 - implement enhanced support for valgrind.
164 - implement is_ready and return value for ready.
165 - removed Coro::Cont, it was a misnomer (it's generators),
166 and it was somewhat annoying to get it right. Will come back
167 if somebody asks for it :)
168 - many ->wait methods and Coro::Event could return
169 spuriously without the event having happened.
170
171 2.5 Tue Nov 7 12:22:33 CET 2006
172 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
173 use AnyEvent, moved them to Coro/.
174 - added Coro::LWP which contains all the uglyness required to
175 make LWP non-blocking.
176 - should work with perl 5.9.x now (Andreas König made me do it).
177 - fixed another bug in Coro::Select when the timeout was undef.
178 - reuse PL_start_env for all coros, saves some memory per coroutine.
179 - manage PL_top_env differently, hopefully to avoid panic: top_env.
180 - timeout argument was not properly used in Coro::Socket.
181 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
182 - emulate undocumented(!) functionality of IO::Socket required
183 by LWP(!!).
184 - updated eg/lwp to work with newer lwp's.
185 - remove "FATAL: uncaught exception" prefix. Coroutines that die
186 kill the whole process, just as exceptions in the main "coroutine"
187 did already.
188
189 2.1 Wed Nov 1 23:01:13 CET 2006
190 - fix a long-standing bug in Coro::Select where select with
191 zero timeout would instead change the current default filehandle.
192 - use a simpler and hopefully more robust way to clone padlists
193 (uses less memory and a perl function instead of our own).
194 - coro can now create a stack guard area on many architectures.
195 - Coro::AIO properly reexports additional functions from IO::AIO.
196 - updated libcoro with a workaround for OS X,
197 pach and testing by Michael Schwern.
198
199 2.0 Tue Oct 24 05:47:17 CEST 2006
200 - support additional aio requests in Coro::AIO.
201
202 1.9 (never properly released due to a glitch)
203
204 1.8 Thu Feb 2 00:59:06 CET 2006
205 - applied suggested patch by SAMV to avoid problems during stupid
206 mark & sweep gc run.
207 - applied patch by Scott Walters for 5.9.3 compatibility.
208
209 1.7 Tue Dec 27 01:41:58 CET 2005
210 - added Coro::AIO, a thin wrapper around IO::AIO.
211 - improved Makefile.PL explanations.
212
213 1.6 Mon Dec 12 21:30:05 CET 2005
214 - additionally save PM_curpm might fix as-of-yet
215 unseen problems with regex matches being attributed to the
216 wrong package.
217 - add t/10_bugs.t, which currently checks against imho broken
218 perls that use 0.26MB of stack space per Perl_magic_get
219 invocation (newer linuxes) as opposed to the 0.0002MB perl
220 normally uses.
221 - make stacksize configurable for the ultimate debian experience.
222
223 1.51 Mon Dec 12 18:48:36 CET 2005
224 - remove debugging warn() accidentally left in Coro::Select.
225
226 1.5 Tue Nov 29 13:32:44 CET 2005
227 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
228 - fix Coro::Select 'select'.
229 - strict'ify some modules.
230 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
231 - use XSLoader in selected modules.
232 - remove some 5.6 compatibility cruft.
233
234 1.4 Tue Sep 6 00:11:05 CEST 2005
235 - libcoro did not take into account the trampoline on amd64,
236 when 'l'inux method was used.
237
238 1.31 Tue Aug 30 23:31:33 CEST 2005
239 - some portability fixes/workarounds.
240
241 1.3 Sat Aug 20 03:08:56 CEST 2005
242 - no code changes. module seems to work fine.
243 - improve Coro::State docs, remove reference to nonexisting
244 Coro::State::flush method.
245 - no longer autodetect windows, present it as an option instead.
246
247 1.2 Mon May 16 02:00:55 CEST 2005
248 - included libcoro.c earlier in State.xs, might improve portability.
249 - use a faster and possibly more stable Coro::Cont implementation.
250 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
251 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
252 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
253
254 1.11 Thu Mar 3 18:00:52 CET 2005
255 - change of contact address.
256
257 1.1 Tue Feb 22 20:51:16 CET 2005
258 - support [l]inux method on amd64.
259 - allow some context switches while compiling/eval'ing.
260
261 1.0 Tue Aug 10 03:47:27 CEST 2004
262 - Event 0.89 fixes the bug again.
263 - fix the remaining(??) memleak. I didn't free the cache-AV for
264 padlists, so one AV per created anon-sub leaked.
265
266 0.97 Fri May 14 15:23:32 CEST 2004
267 - remove stupid gcc extension that was an experiment only anyway.
268
269 0.96 Thu May 13 18:09:29 CEST 2004
270 - tell people if they have yet another broken Event variant.
271 - made Coro to work _better_ with threads (it seems that, as long
272 as you use Coros in one thread only everything will work fine.
273 Looking at the perl source the problem might be missing locking
274 between Coro and some perl internal routines. That's not easily
275 fixable).
276 - (hopefully) got rid of the static xnext inside transfer.
277
278 0.95 Sun Feb 15 03:20:28 CET 2004
279 - removed Coro::State::flush, implemented a new and much
280 faster caching mechanism by attaching magic to the CV.
281 - a memleak with (real) closures remains.
282 - dramatically reduced size of stacks to 65536 (linux/x86), after
283 observing that even myhttpd never had more than a kilobyte
284 of stack in use (stack is still only physically allocated in
285 pagesize increments for systems suporting mmap).
286 - fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
287 - fix for threaded perl.
288
289 0.9 Sun Nov 23 04:32:39 CET 2003
290 - fix a few very hard to track down but (of course) stupid
291 memory leaks.
292 - stringify version number to avoid locale problems :(.
293 - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
294 hopefully ignoring it "just works".
295
296 0.8 Wed Nov 5 19:38:40 CET 2003
297 - port to perl5.005_03, but only 5.8.x+ is supported!
298 - honor LocalAddr even without LocalPort in Coro::Socket.
299
300 0.7 Tue May 27 03:12:38 CEST 2003
301 - the version jump indicates some level of testing, not gobs
302 of new features.
303 - uh... I found the prompt function in ExtUtils::MakeMaker.
304 Highly correct stuff, that is...
305 - fixed(?) a bug with die's in coroutines causing "panic: top_env".
306 the fix is not well understood by the author, so beware :(.
307
308 0.652 Thu May 8 02:54:46 CEST 2003
309 - Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
310 cause version 4 doesn't have ucontext.
311 - Benjamin Reed reported that setjmp works fine on darwin,
312 so preselect it.
313
314 0.651 Sat Mar 29 15:00:23 CET 2003
315 - fix a bug in Coro::Handle where some bytes could get lost
316 on reading, reported by jason@nichego.net.
317
318 0.65 Sun Mar 23 00:08:26 CET 2003
319 - added a README.linux-glibc.
320 - new module Coro::Select.
321 - also save/restore PL_comppad, fixes segfaults with 5.8.1.
322 (I never claimed that I know what I am doing ;).
323 - set default to setjmp/longjmp on non-x86-linux.
324
325 0.6 Thu Nov 21 11:09:06 CET 2002
326 - made lazy context switching the default.
327 - fixed the bug where SemaphoreSet::guard
328 was the same as timed_guard and timed_guard was missing.
329 - fix a memleak in Coro::Timer.
330 - reclassified context sharing as not experimental.
331
332 0.534 Sun Apr 14 03:05:12 CEST 2002
333 - fixed backspace => tab in header parsing (myhttpd).
334 - added eg/readline, for elmex.
335 - Coro::Event now calls ->start on first call instead of
336 ->again, which created wrong timeouts for the first ->next.
337 - fixed a bug where Coro::Socket returned a closed socket instead
338 of nothing on ECONNREFUSED and similar error conditions.
339
340 0.533 Mon Feb 18 18:49:40 CET 2002
341 - adapt to finally working Event-0.85.
342 - fixed buggy event initialization (trapped under windows, but how
343 could it possibly have worked anywhere?)
344
345 0.532 Wed Jan 16 02:45:32 CET 2002
346 - removed the reference to pp_entersub, might work on
347 (some) win32 perls now (testsuite works under cygwin,
348 without Event, which freezes).
349
350 0.531 Mon Dec 10 22:18:44 CET 2001
351 - Fixed a bug in SemaphoreSet::timed_down.
352
353 0.53 Tue Nov 27 21:11:13 CET 2001
354 - some tests for Event.
355 - slightly different internal architecture to get refcnt into the object
356 and not the reference. might fix a few bugs, certainly did introduce
357 new ones.
358 - Coro::Timer (independent of Event).
359 - new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
360
361 0.52 Tue Nov 6 21:36:18 CET 2001
362 - ported to cygwin (trivial).
363 patch by Gerrit P. Haase <gp@familiehaase.de>.
364 - small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
365
366 0.51 Thu Nov 1 20:39:01 CET 2001
367 - terminate/cancel now work properly (otherwise termination
368 could cause a "next coroutine is not and contains not..."
369 error.
370 - added Coro::Socket::shutdown.
371 - Coro::Event::loop no is the same as Event::loop.
372 - implemented terminate with args + join.
373
374 0.5 Fri Sep 28 16:15:35 CEST 2001
375 - fixed "print" on a Coro::Handle. The print method worked.
376 - small tweaks (seem to reduce memory consumption a lot)
377 in various modules.
378 - splendid use of "no warnings" scattered throughout.
379 - added Coro::Handle::rbuf, fixed Coro::Handle::fh.
380
381 0.49 Sun Sep 16 02:42:45 CEST 2001
382 - changed some method calls to function calls for speed
383 inside Coro::Handle.
384 - make Coro::Handle use an array instead of a hash for
385 speed reasons.
386 - IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
387 sjlj and ucontext should now work.
388 - IRIX-specific port for libcoro.
389 - swapped order of accept results to match IO::Socket.
390 - changed getsock/peername to sock/peername to match IO::Socket.
391 - fixed a bug that caused segfault when returning to main task
392 under some circumstances.
393 - other bugfixes.
394
395 0.45 Sun Sep 2 02:54:01 CEST 2001
396 - new method Coro::Handle::timeout.
397 - corrected speling of set...name to get...name in Coro::Socket.
398 - Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
399 - Coro::Handle now supports fileno and FILENO.
400 - added eg/myhttpd, a web server.
401 - Coro::Socket now accepts numeric ports as well as "port(number)"
402 syntax.
403 - moved some scheduling primitives into xs code. more to come.
404 - new simple priority system.
405 - implemented Coro::Event using XS, almost four times faster!
406 - small memory corruption problem fixed (boy that was difficult).
407
408 0.13 Wed Aug 8 16:53:07 CEST 2001
409 - new method Coro::Handle::readline.
410 - added eg/lwp and Coro::Handle::autoflush, to make LWP work.
411 (see eg/lwp on how to make LWP non-blocking).
412 - renamed Coro::Socket::new_inet to new.
413 - added Coro::Util, some utility functions.
414 - die/eval now works better (still get annoying (but true ;)
415 "Callback called exit" messages).
416 - Coro::Handle now supports timeout, and Coro::Socket Timeout.
417 - much better Coro::Socket support.
418
419 0.12 Fri Jul 27 04:19:01 CEST 2001
420 - do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
421 - very experimental stack sharing algorithm. not 100% safe but
422 should work well in practise ;)
423 - added Coro::RWLock.
424 - Coro::Specific now works.
425
426 0.11 Tue Jul 24 22:49:21 CEST 2001
427 - added specialized hack for newer and older linux versions (fast).
428 - renamed Coro::Event::IO to Coro::Handle.
429 - new module Coro::Socket.
430
431 0.1 Tue Jul 24 01:47:53 CEST 2001
432 - release candidate 3. A rather new internal structure :(
433 - the great renaming: Damian Conway gave me a suitable replacement
434 for yield.
435 - added Coro/libcoro, a portable coroutine implementation for C
436 (not even perl-dependent!!!), which can be used by Coro::State.
437 - renamed SAVE_DEFSV (on xs-level only) to avoid symbol clash in
438 perl-5.6.
439 - new function Coro::Event::idle.
440 - the idle process is now overriden
441 by default in Coro::Event.
442 - Coro::Channel now enforces the size.
443 - canceling events now works in all cases.
444 - Coro state now include $_ and $@.
445 - yet another bug workaround that I do not really understand :(
446 - new module Coro::Event::IO (very undocumented) to do
447 non-blocking i/o.
448 - performance tuning.
449
450 0.08 Thu Jul 19 06:13:25 CEST 2001
451 - release candidate 2 (new functionality).
452 - add Coro::State::flush function.
453 - transfer now supports a flags value (mostly for speed ATM).
454 - might compile and work in the presence of threads now.
455 - continuations have a saner syntax.
456 - no more memleaks.
457
458 0.07 Tue Jul 17 17:40:18 CEST 2001
459 - release candidate 1 ;)
460 - slightly nicer code.
461 - fixed a scheduling bug in Coro::Event.
462
463 0.06 Tue Jul 17 04:23:24 CEST 2001
464 - ok, I found the showstopper - the same sub must not be
465 re-entered in two different coroutines, otherwise => crash. I
466 see no easy solution to this problem, except by walking the call
467 chaing and saving/restoring the cv's, which is what I do now.
468 - memory leaks still latent, especially at thread termination.
469 - Coro::Event now works (haha).
470
471 0.05 Sun Jul 15 17:32:20 CEST 2001
472 - fixed a few issues in Coro::Event.
473 - I forgot to include Coro::Event in 0.04 :(:(:(
474
475 0.04 Sun Jul 15 05:24:59 CEST 2001
476 - @_ is now properly localized.
477 - Coro::State is now easier subclassable.
478 - Coro::Cont now coroutine-aware.
479 - Coro::Specific is a low-overhead module to create
480 coroutine-specific vars.
481 - Coro::Event provides a simple interface to Event.
482
483 0.03 Fri Jul 13 14:51:52 CEST 2001
484 - transfer() now implemented in XS (beware).
485 - new module Coro::Cont for really faked continuations.
486 - big internal architecture changes: Coro::State is now
487 really low-level and can thus be used to implement other
488 interesting things, While "Coro::" implements a process-like
489 model. Still crude and subject to change.
490 - $_ and $@ are no longer being localized.
491
492 0.02 Tue Jul 10 01:38:17 CEST 2001
493 - implemented "async" attribute.
494 - $_ and $@ are now localized.
495 - added Coro::Channel.
496 - more testcases, still no docs.
497
498 0.01 Tue Jul 3 02:18:41 CEST 2001
499 - original version; copied from Convert::Scalar.
500