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Revision: 1.253
Committed: Wed Oct 3 18:37:48 2007 UTC (16 years, 7 months ago) by root
Branch: MAIN
Changes since 1.252: +1 -1 lines
Log Message:
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# Content
1 Revision history for Perl extension Coro.
2
3 TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO.
4 TODO: 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
8 4.0
9 - incompatibly changed Coro::Storable::freeze.
10 - major new feature: added Coro::Debug, for interactive coroutine
11 debugging, tracing and much more.
12 - major bug fix: unbelievable, but true: $_, $/ and many other
13 "saved" variables actually weren't being saved. This has been fixed,
14 of course, while increasing performance while losing all the save
15 flags.
16 - save flags are gone, and all the api functions dealing with them.
17 - added Coro::Semaphore::adjust.
18 - added Coro::Util::fork_eval.
19 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
20 - added Coro::killall.
21 - reduce initial stack sizes to allow for "micro-coroutines".
22 - better async_pool resource management, moved parts of async_pool
23 handling to XS (major speed improvement).
24 - actually croak before modifying important data structures.
25 - refuse to transfer while compiling.
26 - possibly support eval EXPR better now.
27 - enable assembly per default on linux+bsd x86+amd64.
28 - all internal members were renamed _something for easier subclassing.
29 - many minor tweaks.
30
31 3.63 Wed May 16 14:10:06 CEST 2007
32 - implement handcoded assembly for x86/amd64 SVR ABI.
33
34 3.62 Fri Apr 27 21:36:06 CEST 2007
35 - upgrade libcoro (which might set unwind info correctly).
36 - change default on linux to setjmp/longjmp.
37
38 3.61 Thu Apr 19 12:36:18 CEST 2007
39 - Coro::Storable caused an endless loop when thawing invalid
40 pst's sometimes.
41 - use a Semaphore in Coro::Storable, as Storable doesn't
42 seem to be reentrant (although it is documented to
43 be threadsafe...).
44 - fix Coro::Signal to bring back the original unreliable
45 but stateful semantics.
46 - fixed a lot of typos in Coro.pm (patch submitted by David
47 Steinbrunner, which applied flawlessly).
48
49 3.6 Sat Apr 14 17:13:31 CEST 2007
50 - added some bugfixes to get eg/myhttpd working again.
51 - added Coro::Storable for often-cede'ing freeze/thaw.
52 - try to do a clean exit when a coroutine calls exit
53 (EXPERIMENTAL).
54 - got rid of indirect call through _coro_init.
55 - updated the partly antique examples in eg/ to
56 work again and be a bit less magic, too.
57 - fixed Coro::Signal semantics to work as documented again.
58
59 3.55 Sun Mar 25 01:20:47 CET 2007
60 - add SAVE_DEFFH to save the default filehandle and enable
61 it by default.
62 - finally move socket-operations from Coro::Socket to Coro::Handle
63 to be able to unblock foreign sockets.
64 - add Coro::State::save_also and guarded_save.
65 - add count accessor to Coro::Semaphore.
66 - add Coro::State::cctx_stacksize.
67 - just for the fun of it, do not rely on implicit context,
68 which can dramatically improve performance, but people
69 using windows-process-emulation perls do not care much about
70 performance.
71
72 3.51 Sun Mar 4 14:18:04 CET 2007
73 - fixed a problem when you weakened references to Coro::State's
74 (patch by Yuval Kogman).
75
76 3.501 Wed Feb 28 12:44:07 CET 2007
77 - rename some global symbols as macosx from hell redefines
78 them without asking.
79
80 3.5 Tue Feb 13 20:22:53 CET 2007
81 - do AnyEvent model detection earlier, avoiding problems
82 caused by first using AnyEvent and later Coro::Event.
83 - implement and document Coro::Event event objects.
84 - fix a potential problem in Coro::Event causing crashes.
85 - initialise PL_comppad when creating a new coroutine,
86 avoids crashes on early coro destruction.
87
88 3.41 Mon Jan 22 19:19:49 CET 2007
89 - readline on Coro::Handle did not support undefined $/,
90 nor did it deliver partial lines on EOF or error.
91 - implement malloc fallback for stack allocation because
92 stupid broken idiotic OSX has a stupid broken
93 idiotic fits-the-whole-os mmap "implementation" and
94 my dick feels longer if Coro is portable even to
95 obsolete platforms.
96
97 3.4 Fri Jan 19 21:52:54 CET 2007
98 - remove t/09_timer.t, as it isn't really testing much
99 but was rather flaky in practise.
100 - async_pool coro would keep arguments and callback alive until
101 it was reused.
102 - cancellation of a coroutine could cause spurious idle calls
103 in cede_notself.
104
105 3.3 Sat Jan 6 03:45:00 CET 2007
106 - implement $coro->on_destroy.
107 - Coro::Event blocking semantics have been changed,
108 documented and - hopefully - improved.
109 - fix nice adding, not subtracting, from priority.
110 - fix ->prio and api_is_ready (patch by Mark Hinds).
111 - fixed an assert ("... == prev__cctx->idle_te")
112 that could errronously trigger.
113 - fix various large and small memleaks.
114 - use a (hopefully) more stable cancel implementation
115 that immediately frees the coroutine data.
116 - cede/cede_notself return a status now.
117 - added Coro::guard function.
118 - added a global coroutine pool for jobs (on my machine,
119 I can create and execute 48k simple coros/s with async,
120 and 128k coros with async_pool).
121 - Coro::AIO now uses the coroutine priority as io priority.
122
123 3.2 Fri Dec 22 05:07:09 CET 2006
124 - improve portability to slightly older perls.
125 - use cleaner coroutine destruction.
126 - simplify configuration for users.
127 - optionally (unrecommended) prefer perl functions over
128 their coro replacements.
129
130 3.11 Tue Dec 5 13:11:24 CET 2006
131 - fixed some bogus assert's, but as perl.h disables assert even
132 without NDEBUG (thank you very much), not too many people should
133 notice (that did include myself). Andreas König noticed, though :)
134 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
135 it. Also noticed by Andreas König :)
136 - save/restore tainted status.
137 - verified to pass the testsuite on my 5.9.5.
138
139 3.1 Mon Dec 4 23:03:40 CET 2006
140 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
141 - incompatible change: transfer flags are now per-state.
142 - give a better error message on deadlock.
143 - document Coro::nready.
144 - enhanced testsuite.
145
146 3.01 Sun Dec 3 23:47:42 CET 2006
147 - forgot to include Coro::Timer.
148
149 3.0 Sun Dec 3 22:57:25 CET 2006
150 - the "FINALLY COMPLETELY STABLE" release (coming soon:
151 the "FAMOUS LAST WORDS" release).
152 - implement a new stack sharing algorithm, which uses a stack
153 pool (size currently hardcoded).
154 - make stack sharing mandatory (it no longer uses a heuristic).
155 - eval/die no longer cause weird problems under heavy use.
156 - Coro::Event could cause livelocks if it was used but
157 no Coro::Event watchers were used.
158 - Coro::Event now uses asynccheck as prepare does not
159 check for changed watchers.
160 - Coro::Event allows multiple waiting coros and will wake up one
161 per event.
162 - Coro::Event should be cleaner and more efficient now.
163 - new utility function Coro::unblock_sub.
164 - document the sad fact that Event is no longer reentrant.
165 - putting a coroutine into the ready queue twice could under
166 some circumstances lead to stack corruption.
167 - minor incompatibility: subclassing Coro::State is supported
168 directly now without going through a _coro_state member.
169 - state/coro switching is much faster now.
170 - very minor optimisations and code/documentation cleanup.
171 - avoid problems due to compiler inlining.
172 - removed timers from Coro::Timer -> use AnyEvent instead.
173 - replaced Coro::idle coroutine by (cleaner) idle handler.
174 - updated to newest libcoro.
175 - implement enhanced support for valgrind.
176 - implement is_ready and return value for ready.
177 - removed Coro::Cont, it was a misnomer (it's generators),
178 and it was somewhat annoying to get it right. Will come back
179 if somebody asks for it :)
180 - many ->wait methods and Coro::Event could return
181 spuriously without the event having happened.
182
183 2.5 Tue Nov 7 12:22:33 CET 2006
184 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
185 use AnyEvent, moved them to Coro/.
186 - added Coro::LWP which contains all the uglyness required to
187 make LWP non-blocking.
188 - should work with perl 5.9.x now (Andreas König made me do it).
189 - fixed another bug in Coro::Select when the timeout was undef.
190 - reuse PL_start_env for all coros, saves some memory per coroutine.
191 - manage PL_top_env differently, hopefully to avoid panic: top_env.
192 - timeout argument was not properly used in Coro::Socket.
193 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
194 - emulate undocumented(!) functionality of IO::Socket required
195 by LWP(!!).
196 - updated eg/lwp to work with newer lwp's.
197 - remove "FATAL: uncaught exception" prefix. Coroutines that die
198 kill the whole process, just as exceptions in the main "coroutine"
199 did already.
200
201 2.1 Wed Nov 1 23:01:13 CET 2006
202 - fix a long-standing bug in Coro::Select where select with
203 zero timeout would instead change the current default filehandle.
204 - use a simpler and hopefully more robust way to clone padlists
205 (uses less memory and a perl function instead of our own).
206 - coro can now create a stack guard area on many architectures.
207 - Coro::AIO properly reexports additional functions from IO::AIO.
208 - updated libcoro with a workaround for OS X,
209 pach and testing by Michael Schwern.
210
211 2.0 Tue Oct 24 05:47:17 CEST 2006
212 - support additional aio requests in Coro::AIO.
213
214 1.9 (never properly released due to a glitch)
215
216 1.8 Thu Feb 2 00:59:06 CET 2006
217 - applied suggested patch by SAMV to avoid problems during stupid
218 mark & sweep gc run.
219 - applied patch by Scott Walters for 5.9.3 compatibility.
220
221 1.7 Tue Dec 27 01:41:58 CET 2005
222 - added Coro::AIO, a thin wrapper around IO::AIO.
223 - improved Makefile.PL explanations.
224
225 1.6 Mon Dec 12 21:30:05 CET 2005
226 - additionally save PM_curpm might fix as-of-yet
227 unseen problems with regex matches being attributed to the
228 wrong package.
229 - add t/10_bugs.t, which currently checks against imho broken
230 perls that use 0.26MB of stack space per Perl_magic_get
231 invocation (newer linuxes) as opposed to the 0.0002MB perl
232 normally uses.
233 - make stacksize configurable for the ultimate debian experience.
234
235 1.51 Mon Dec 12 18:48:36 CET 2005
236 - remove debugging warn() accidentally left in Coro::Select.
237
238 1.5 Tue Nov 29 13:32:44 CET 2005
239 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
240 - fix Coro::Select 'select'.
241 - strict'ify some modules.
242 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
243 - use XSLoader in selected modules.
244 - remove some 5.6 compatibility cruft.
245
246 1.4 Tue Sep 6 00:11:05 CEST 2005
247 - libcoro did not take into account the trampoline on amd64,
248 when 'l'inux method was used.
249
250 1.31 Tue Aug 30 23:31:33 CEST 2005
251 - some portability fixes/workarounds.
252
253 1.3 Sat Aug 20 03:08:56 CEST 2005
254 - no code changes. module seems to work fine.
255 - improve Coro::State docs, remove reference to nonexisting
256 Coro::State::flush method.
257 - no longer autodetect windows, present it as an option instead.
258
259 1.2 Mon May 16 02:00:55 CEST 2005
260 - included libcoro.c earlier in State.xs, might improve portability.
261 - use a faster and possibly more stable Coro::Cont implementation.
262 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
263 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
264 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
265
266 1.11 Thu Mar 3 18:00:52 CET 2005
267 - change of contact address.
268
269 1.1 Tue Feb 22 20:51:16 CET 2005
270 - support [l]inux method on amd64.
271 - allow some context switches while compiling/eval'ing.
272
273 1.0 Tue Aug 10 03:47:27 CEST 2004
274 - Event 0.89 fixes the bug again.
275 - fix the remaining(??) memleak. I didn't free the cache-AV for
276 padlists, so one AV per created anon-sub leaked.
277
278 0.97 Fri May 14 15:23:32 CEST 2004
279 - remove stupid gcc extension that was an experiment only anyway.
280
281 0.96 Thu May 13 18:09:29 CEST 2004
282 - tell people if they have yet another broken Event variant.
283 - made Coro to work _better_ with threads (it seems that, as long
284 as you use Coros in one thread only everything will work fine.
285 Looking at the perl source the problem might be missing locking
286 between Coro and some perl internal routines. That's not easily
287 fixable).
288 - (hopefully) got rid of the static xnext inside transfer.
289
290 0.95 Sun Feb 15 03:20:28 CET 2004
291 - removed Coro::State::flush, implemented a new and much
292 faster caching mechanism by attaching magic to the CV.
293 - a memleak with (real) closures remains.
294 - dramatically reduced size of stacks to 65536 (linux/x86), after
295 observing that even myhttpd never had more than a kilobyte
296 of stack in use (stack is still only physically allocated in
297 pagesize increments for systems suporting mmap).
298 - fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
299 - fix for threaded perl.
300
301 0.9 Sun Nov 23 04:32:39 CET 2003
302 - fix a few very hard to track down but (of course) stupid
303 memory leaks.
304 - stringify version number to avoid locale problems :(.
305 - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
306 hopefully ignoring it "just works".
307
308 0.8 Wed Nov 5 19:38:40 CET 2003
309 - port to perl5.005_03, but only 5.8.x+ is supported!
310 - honor LocalAddr even without LocalPort in Coro::Socket.
311
312 0.7 Tue May 27 03:12:38 CEST 2003
313 - the version jump indicates some level of testing, not gobs
314 of new features.
315 - uh... I found the prompt function in ExtUtils::MakeMaker.
316 Highly correct stuff, that is...
317 - fixed(?) a bug with die's in coroutines causing "panic: top_env".
318 the fix is not well understood by the author, so beware :(.
319
320 0.652 Thu May 8 02:54:46 CEST 2003
321 - Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
322 cause version 4 doesn't have ucontext.
323 - Benjamin Reed reported that setjmp works fine on darwin,
324 so preselect it.
325
326 0.651 Sat Mar 29 15:00:23 CET 2003
327 - fix a bug in Coro::Handle where some bytes could get lost
328 on reading, reported by jason@nichego.net.
329
330 0.65 Sun Mar 23 00:08:26 CET 2003
331 - added a README.linux-glibc.
332 - new module Coro::Select.
333 - also save/restore PL_comppad, fixes segfaults with 5.8.1.
334 (I never claimed that I know what I am doing ;).
335 - set default to setjmp/longjmp on non-x86-linux.
336
337 0.6 Thu Nov 21 11:09:06 CET 2002
338 - made lazy context switching the default.
339 - fixed the bug where SemaphoreSet::guard
340 was the same as timed_guard and timed_guard was missing.
341 - fix a memleak in Coro::Timer.
342 - reclassified context sharing as not experimental.
343
344 0.534 Sun Apr 14 03:05:12 CEST 2002
345 - fixed backspace => tab in header parsing (myhttpd).
346 - added eg/readline, for elmex.
347 - Coro::Event now calls ->start on first call instead of
348 ->again, which created wrong timeouts for the first ->next.
349 - fixed a bug where Coro::Socket returned a closed socket instead
350 of nothing on ECONNREFUSED and similar error conditions.
351
352 0.533 Mon Feb 18 18:49:40 CET 2002
353 - adapt to finally working Event-0.85.
354 - fixed buggy event initialization (trapped under windows, but how
355 could it possibly have worked anywhere?)
356
357 0.532 Wed Jan 16 02:45:32 CET 2002
358 - removed the reference to pp_entersub, might work on
359 (some) win32 perls now (testsuite works under cygwin,
360 without Event, which freezes).
361
362 0.531 Mon Dec 10 22:18:44 CET 2001
363 - Fixed a bug in SemaphoreSet::timed_down.
364
365 0.53 Tue Nov 27 21:11:13 CET 2001
366 - some tests for Event.
367 - slightly different internal architecture to get refcnt into the object
368 and not the reference. might fix a few bugs, certainly did introduce
369 new ones.
370 - Coro::Timer (independent of Event).
371 - new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
372
373 0.52 Tue Nov 6 21:36:18 CET 2001
374 - ported to cygwin (trivial).
375 patch by Gerrit P. Haase <gp@familiehaase.de>.
376 - small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
377
378 0.51 Thu Nov 1 20:39:01 CET 2001
379 - terminate/cancel now work properly (otherwise termination
380 could cause a "next coroutine is not and contains not..."
381 error.
382 - added Coro::Socket::shutdown.
383 - Coro::Event::loop no is the same as Event::loop.
384 - implemented terminate with args + join.
385
386 0.5 Fri Sep 28 16:15:35 CEST 2001
387 - fixed "print" on a Coro::Handle. The print method worked.
388 - small tweaks (seem to reduce memory consumption a lot)
389 in various modules.
390 - splendid use of "no warnings" scattered throughout.
391 - added Coro::Handle::rbuf, fixed Coro::Handle::fh.
392
393 0.49 Sun Sep 16 02:42:45 CEST 2001
394 - changed some method calls to function calls for speed
395 inside Coro::Handle.
396 - make Coro::Handle use an array instead of a hash for
397 speed reasons.
398 - IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
399 sjlj and ucontext should now work.
400 - IRIX-specific port for libcoro.
401 - swapped order of accept results to match IO::Socket.
402 - changed getsock/peername to sock/peername to match IO::Socket.
403 - fixed a bug that caused segfault when returning to main task
404 under some circumstances.
405 - other bugfixes.
406
407 0.45 Sun Sep 2 02:54:01 CEST 2001
408 - new method Coro::Handle::timeout.
409 - corrected speling of set...name to get...name in Coro::Socket.
410 - Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
411 - Coro::Handle now supports fileno and FILENO.
412 - added eg/myhttpd, a web server.
413 - Coro::Socket now accepts numeric ports as well as "port(number)"
414 syntax.
415 - moved some scheduling primitives into xs code. more to come.
416 - new simple priority system.
417 - implemented Coro::Event using XS, almost four times faster!
418 - small memory corruption problem fixed (boy that was difficult).
419
420 0.13 Wed Aug 8 16:53:07 CEST 2001
421 - new method Coro::Handle::readline.
422 - added eg/lwp and Coro::Handle::autoflush, to make LWP work.
423 (see eg/lwp on how to make LWP non-blocking).
424 - renamed Coro::Socket::new_inet to new.
425 - added Coro::Util, some utility functions.
426 - die/eval now works better (still get annoying (but true ;)
427 "Callback called exit" messages).
428 - Coro::Handle now supports timeout, and Coro::Socket Timeout.
429 - much better Coro::Socket support.
430
431 0.12 Fri Jul 27 04:19:01 CEST 2001
432 - do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
433 - very experimental stack sharing algorithm. not 100% safe but
434 should work well in practise ;)
435 - added Coro::RWLock.
436 - Coro::Specific now works.
437
438 0.11 Tue Jul 24 22:49:21 CEST 2001
439 - added specialized hack for newer and older linux versions (fast).
440 - renamed Coro::Event::IO to Coro::Handle.
441 - new module Coro::Socket.
442
443 0.1 Tue Jul 24 01:47:53 CEST 2001
444 - release candidate 3. A rather new internal structure :(
445 - the great renaming: Damian Conway gave me a suitable replacement
446 for yield.
447 - added Coro/libcoro, a portable coroutine implementation for C
448 (not even perl-dependent!!!), which can be used by Coro::State.
449 - renamed SAVE_DEFSV (on xs-level only) to avoid symbol clash in
450 perl-5.6.
451 - new function Coro::Event::idle.
452 - the idle process is now overriden
453 by default in Coro::Event.
454 - Coro::Channel now enforces the size.
455 - canceling events now works in all cases.
456 - Coro state now include $_ and $@.
457 - yet another bug workaround that I do not really understand :(
458 - new module Coro::Event::IO (very undocumented) to do
459 non-blocking i/o.
460 - performance tuning.
461
462 0.08 Thu Jul 19 06:13:25 CEST 2001
463 - release candidate 2 (new functionality).
464 - add Coro::State::flush function.
465 - transfer now supports a flags value (mostly for speed ATM).
466 - might compile and work in the presence of threads now.
467 - continuations have a saner syntax.
468 - no more memleaks.
469
470 0.07 Tue Jul 17 17:40:18 CEST 2001
471 - release candidate 1 ;)
472 - slightly nicer code.
473 - fixed a scheduling bug in Coro::Event.
474
475 0.06 Tue Jul 17 04:23:24 CEST 2001
476 - ok, I found the showstopper - the same sub must not be
477 re-entered in two different coroutines, otherwise => crash. I
478 see no easy solution to this problem, except by walking the call
479 chaing and saving/restoring the cv's, which is what I do now.
480 - memory leaks still latent, especially at thread termination.
481 - Coro::Event now works (haha).
482
483 0.05 Sun Jul 15 17:32:20 CEST 2001
484 - fixed a few issues in Coro::Event.
485 - I forgot to include Coro::Event in 0.04 :(:(:(
486
487 0.04 Sun Jul 15 05:24:59 CEST 2001
488 - @_ is now properly localized.
489 - Coro::State is now easier subclassable.
490 - Coro::Cont now coroutine-aware.
491 - Coro::Specific is a low-overhead module to create
492 coroutine-specific vars.
493 - Coro::Event provides a simple interface to Event.
494
495 0.03 Fri Jul 13 14:51:52 CEST 2001
496 - transfer() now implemented in XS (beware).
497 - new module Coro::Cont for really faked continuations.
498 - big internal architecture changes: Coro::State is now
499 really low-level and can thus be used to implement other
500 interesting things, While "Coro::" implements a process-like
501 model. Still crude and subject to change.
502 - $_ and $@ are no longer being localized.
503
504 0.02 Tue Jul 10 01:38:17 CEST 2001
505 - implemented "async" attribute.
506 - $_ and $@ are now localized.
507 - added Coro::Channel.
508 - more testcases, still no docs.
509
510 0.01 Tue Jul 3 02:18:41 CEST 2001
511 - original version; copied from Convert::Scalar.
512