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Revision: 1.256
Committed: Fri Oct 5 20:11:25 2007 UTC (16 years, 7 months ago) by root
Branch: MAIN
Changes since 1.255: +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 4.01 Fri Oct 5 22:10:49 CEST 2007
9 - use a different, less descriptive but hopefully more robust way
10 to create the stdout glob for a newly created coroutine.
11
12 4.0 Fri Oct 5 12:56:00 CEST 2007
13 - incompatibly changed Coro::Storable::freeze.
14 - major new feature: added Coro::Debug, for interactive coroutine
15 debugging, tracing and much more.
16 - major bug fix: unbelievable, but true: $_, $/ and many other
17 "saved" variables actually weren't being saved. This has been fixed,
18 of course, while increasing performance while losing all the save
19 flags.
20 - save flags are gone, and all the api functions dealing with them.
21 - added Coro::Semaphore::adjust.
22 - added Coro::Util::fork_eval.
23 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
24 - added Coro::killall.
25 - reduce initial stack sizes to allow for "micro-coroutines".
26 - better async_pool resource management, moved parts of async_pool
27 handling to XS (major speed improvement).
28 - actually croak before modifying important data structures.
29 - refuse to transfer while compiling.
30 - possibly support eval EXPR better now.
31 - enable assembly per default on linux+bsd x86+amd64.
32 - all internal members were renamed _something for easier subclassing.
33 - many minor tweaks.
34
35 3.63 Wed May 16 14:10:06 CEST 2007
36 - implement handcoded assembly for x86/amd64 SVR ABI.
37
38 3.62 Fri Apr 27 21:36:06 CEST 2007
39 - upgrade libcoro (which might set unwind info correctly).
40 - change default on linux to setjmp/longjmp.
41
42 3.61 Thu Apr 19 12:36:18 CEST 2007
43 - Coro::Storable caused an endless loop when thawing invalid
44 pst's sometimes.
45 - use a Semaphore in Coro::Storable, as Storable doesn't
46 seem to be reentrant (although it is documented to
47 be threadsafe...).
48 - fix Coro::Signal to bring back the original unreliable
49 but stateful semantics.
50 - fixed a lot of typos in Coro.pm (patch submitted by David
51 Steinbrunner, which applied flawlessly).
52
53 3.6 Sat Apr 14 17:13:31 CEST 2007
54 - added some bugfixes to get eg/myhttpd working again.
55 - added Coro::Storable for often-cede'ing freeze/thaw.
56 - try to do a clean exit when a coroutine calls exit
57 (EXPERIMENTAL).
58 - got rid of indirect call through _coro_init.
59 - updated the partly antique examples in eg/ to
60 work again and be a bit less magic, too.
61 - fixed Coro::Signal semantics to work as documented again.
62
63 3.55 Sun Mar 25 01:20:47 CET 2007
64 - add SAVE_DEFFH to save the default filehandle and enable
65 it by default.
66 - finally move socket-operations from Coro::Socket to Coro::Handle
67 to be able to unblock foreign sockets.
68 - add Coro::State::save_also and guarded_save.
69 - add count accessor to Coro::Semaphore.
70 - add Coro::State::cctx_stacksize.
71 - just for the fun of it, do not rely on implicit context,
72 which can dramatically improve performance, but people
73 using windows-process-emulation perls do not care much about
74 performance.
75
76 3.51 Sun Mar 4 14:18:04 CET 2007
77 - fixed a problem when you weakened references to Coro::State's
78 (patch by Yuval Kogman).
79
80 3.501 Wed Feb 28 12:44:07 CET 2007
81 - rename some global symbols as macosx from hell redefines
82 them without asking.
83
84 3.5 Tue Feb 13 20:22:53 CET 2007
85 - do AnyEvent model detection earlier, avoiding problems
86 caused by first using AnyEvent and later Coro::Event.
87 - implement and document Coro::Event event objects.
88 - fix a potential problem in Coro::Event causing crashes.
89 - initialise PL_comppad when creating a new coroutine,
90 avoids crashes on early coro destruction.
91
92 3.41 Mon Jan 22 19:19:49 CET 2007
93 - readline on Coro::Handle did not support undefined $/,
94 nor did it deliver partial lines on EOF or error.
95 - implement malloc fallback for stack allocation because
96 stupid broken idiotic OSX has a stupid broken
97 idiotic fits-the-whole-os mmap "implementation" and
98 my dick feels longer if Coro is portable even to
99 obsolete platforms.
100
101 3.4 Fri Jan 19 21:52:54 CET 2007
102 - remove t/09_timer.t, as it isn't really testing much
103 but was rather flaky in practise.
104 - async_pool coro would keep arguments and callback alive until
105 it was reused.
106 - cancellation of a coroutine could cause spurious idle calls
107 in cede_notself.
108
109 3.3 Sat Jan 6 03:45:00 CET 2007
110 - implement $coro->on_destroy.
111 - Coro::Event blocking semantics have been changed,
112 documented and - hopefully - improved.
113 - fix nice adding, not subtracting, from priority.
114 - fix ->prio and api_is_ready (patch by Mark Hinds).
115 - fixed an assert ("... == prev__cctx->idle_te")
116 that could errronously trigger.
117 - fix various large and small memleaks.
118 - use a (hopefully) more stable cancel implementation
119 that immediately frees the coroutine data.
120 - cede/cede_notself return a status now.
121 - added Coro::guard function.
122 - added a global coroutine pool for jobs (on my machine,
123 I can create and execute 48k simple coros/s with async,
124 and 128k coros with async_pool).
125 - Coro::AIO now uses the coroutine priority as io priority.
126
127 3.2 Fri Dec 22 05:07:09 CET 2006
128 - improve portability to slightly older perls.
129 - use cleaner coroutine destruction.
130 - simplify configuration for users.
131 - optionally (unrecommended) prefer perl functions over
132 their coro replacements.
133
134 3.11 Tue Dec 5 13:11:24 CET 2006
135 - fixed some bogus assert's, but as perl.h disables assert even
136 without NDEBUG (thank you very much), not too many people should
137 notice (that did include myself). Andreas König noticed, though :)
138 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
139 it. Also noticed by Andreas König :)
140 - save/restore tainted status.
141 - verified to pass the testsuite on my 5.9.5.
142
143 3.1 Mon Dec 4 23:03:40 CET 2006
144 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
145 - incompatible change: transfer flags are now per-state.
146 - give a better error message on deadlock.
147 - document Coro::nready.
148 - enhanced testsuite.
149
150 3.01 Sun Dec 3 23:47:42 CET 2006
151 - forgot to include Coro::Timer.
152
153 3.0 Sun Dec 3 22:57:25 CET 2006
154 - the "FINALLY COMPLETELY STABLE" release (coming soon:
155 the "FAMOUS LAST WORDS" release).
156 - implement a new stack sharing algorithm, which uses a stack
157 pool (size currently hardcoded).
158 - make stack sharing mandatory (it no longer uses a heuristic).
159 - eval/die no longer cause weird problems under heavy use.
160 - Coro::Event could cause livelocks if it was used but
161 no Coro::Event watchers were used.
162 - Coro::Event now uses asynccheck as prepare does not
163 check for changed watchers.
164 - Coro::Event allows multiple waiting coros and will wake up one
165 per event.
166 - Coro::Event should be cleaner and more efficient now.
167 - new utility function Coro::unblock_sub.
168 - document the sad fact that Event is no longer reentrant.
169 - putting a coroutine into the ready queue twice could under
170 some circumstances lead to stack corruption.
171 - minor incompatibility: subclassing Coro::State is supported
172 directly now without going through a _coro_state member.
173 - state/coro switching is much faster now.
174 - very minor optimisations and code/documentation cleanup.
175 - avoid problems due to compiler inlining.
176 - removed timers from Coro::Timer -> use AnyEvent instead.
177 - replaced Coro::idle coroutine by (cleaner) idle handler.
178 - updated to newest libcoro.
179 - implement enhanced support for valgrind.
180 - implement is_ready and return value for ready.
181 - removed Coro::Cont, it was a misnomer (it's generators),
182 and it was somewhat annoying to get it right. Will come back
183 if somebody asks for it :)
184 - many ->wait methods and Coro::Event could return
185 spuriously without the event having happened.
186
187 2.5 Tue Nov 7 12:22:33 CET 2006
188 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
189 use AnyEvent, moved them to Coro/.
190 - added Coro::LWP which contains all the uglyness required to
191 make LWP non-blocking.
192 - should work with perl 5.9.x now (Andreas König made me do it).
193 - fixed another bug in Coro::Select when the timeout was undef.
194 - reuse PL_start_env for all coros, saves some memory per coroutine.
195 - manage PL_top_env differently, hopefully to avoid panic: top_env.
196 - timeout argument was not properly used in Coro::Socket.
197 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
198 - emulate undocumented(!) functionality of IO::Socket required
199 by LWP(!!).
200 - updated eg/lwp to work with newer lwp's.
201 - remove "FATAL: uncaught exception" prefix. Coroutines that die
202 kill the whole process, just as exceptions in the main "coroutine"
203 did already.
204
205 2.1 Wed Nov 1 23:01:13 CET 2006
206 - fix a long-standing bug in Coro::Select where select with
207 zero timeout would instead change the current default filehandle.
208 - use a simpler and hopefully more robust way to clone padlists
209 (uses less memory and a perl function instead of our own).
210 - coro can now create a stack guard area on many architectures.
211 - Coro::AIO properly reexports additional functions from IO::AIO.
212 - updated libcoro with a workaround for OS X,
213 pach and testing by Michael Schwern.
214
215 2.0 Tue Oct 24 05:47:17 CEST 2006
216 - support additional aio requests in Coro::AIO.
217
218 1.9 (never properly released due to a glitch)
219
220 1.8 Thu Feb 2 00:59:06 CET 2006
221 - applied suggested patch by SAMV to avoid problems during stupid
222 mark & sweep gc run.
223 - applied patch by Scott Walters for 5.9.3 compatibility.
224
225 1.7 Tue Dec 27 01:41:58 CET 2005
226 - added Coro::AIO, a thin wrapper around IO::AIO.
227 - improved Makefile.PL explanations.
228
229 1.6 Mon Dec 12 21:30:05 CET 2005
230 - additionally save PM_curpm might fix as-of-yet
231 unseen problems with regex matches being attributed to the
232 wrong package.
233 - add t/10_bugs.t, which currently checks against imho broken
234 perls that use 0.26MB of stack space per Perl_magic_get
235 invocation (newer linuxes) as opposed to the 0.0002MB perl
236 normally uses.
237 - make stacksize configurable for the ultimate debian experience.
238
239 1.51 Mon Dec 12 18:48:36 CET 2005
240 - remove debugging warn() accidentally left in Coro::Select.
241
242 1.5 Tue Nov 29 13:32:44 CET 2005
243 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
244 - fix Coro::Select 'select'.
245 - strict'ify some modules.
246 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
247 - use XSLoader in selected modules.
248 - remove some 5.6 compatibility cruft.
249
250 1.4 Tue Sep 6 00:11:05 CEST 2005
251 - libcoro did not take into account the trampoline on amd64,
252 when 'l'inux method was used.
253
254 1.31 Tue Aug 30 23:31:33 CEST 2005
255 - some portability fixes/workarounds.
256
257 1.3 Sat Aug 20 03:08:56 CEST 2005
258 - no code changes. module seems to work fine.
259 - improve Coro::State docs, remove reference to nonexisting
260 Coro::State::flush method.
261 - no longer autodetect windows, present it as an option instead.
262
263 1.2 Mon May 16 02:00:55 CEST 2005
264 - included libcoro.c earlier in State.xs, might improve portability.
265 - use a faster and possibly more stable Coro::Cont implementation.
266 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
267 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
268 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
269
270 1.11 Thu Mar 3 18:00:52 CET 2005
271 - change of contact address.
272
273 1.1 Tue Feb 22 20:51:16 CET 2005
274 - support [l]inux method on amd64.
275 - allow some context switches while compiling/eval'ing.
276
277 1.0 Tue Aug 10 03:47:27 CEST 2004
278 - Event 0.89 fixes the bug again.
279 - fix the remaining(??) memleak. I didn't free the cache-AV for
280 padlists, so one AV per created anon-sub leaked.
281
282 0.97 Fri May 14 15:23:32 CEST 2004
283 - remove stupid gcc extension that was an experiment only anyway.
284
285 0.96 Thu May 13 18:09:29 CEST 2004
286 - tell people if they have yet another broken Event variant.
287 - made Coro to work _better_ with threads (it seems that, as long
288 as you use Coros in one thread only everything will work fine.
289 Looking at the perl source the problem might be missing locking
290 between Coro and some perl internal routines. That's not easily
291 fixable).
292 - (hopefully) got rid of the static xnext inside transfer.
293
294 0.95 Sun Feb 15 03:20:28 CET 2004
295 - removed Coro::State::flush, implemented a new and much
296 faster caching mechanism by attaching magic to the CV.
297 - a memleak with (real) closures remains.
298 - dramatically reduced size of stacks to 65536 (linux/x86), after
299 observing that even myhttpd never had more than a kilobyte
300 of stack in use (stack is still only physically allocated in
301 pagesize increments for systems suporting mmap).
302 - fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
303 - fix for threaded perl.
304
305 0.9 Sun Nov 23 04:32:39 CET 2003
306 - fix a few very hard to track down but (of course) stupid
307 memory leaks.
308 - stringify version number to avoid locale problems :(.
309 - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
310 hopefully ignoring it "just works".
311
312 0.8 Wed Nov 5 19:38:40 CET 2003
313 - port to perl5.005_03, but only 5.8.x+ is supported!
314 - honor LocalAddr even without LocalPort in Coro::Socket.
315
316 0.7 Tue May 27 03:12:38 CEST 2003
317 - the version jump indicates some level of testing, not gobs
318 of new features.
319 - uh... I found the prompt function in ExtUtils::MakeMaker.
320 Highly correct stuff, that is...
321 - fixed(?) a bug with die's in coroutines causing "panic: top_env".
322 the fix is not well understood by the author, so beware :(.
323
324 0.652 Thu May 8 02:54:46 CEST 2003
325 - Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
326 cause version 4 doesn't have ucontext.
327 - Benjamin Reed reported that setjmp works fine on darwin,
328 so preselect it.
329
330 0.651 Sat Mar 29 15:00:23 CET 2003
331 - fix a bug in Coro::Handle where some bytes could get lost
332 on reading, reported by jason@nichego.net.
333
334 0.65 Sun Mar 23 00:08:26 CET 2003
335 - added a README.linux-glibc.
336 - new module Coro::Select.
337 - also save/restore PL_comppad, fixes segfaults with 5.8.1.
338 (I never claimed that I know what I am doing ;).
339 - set default to setjmp/longjmp on non-x86-linux.
340
341 0.6 Thu Nov 21 11:09:06 CET 2002
342 - made lazy context switching the default.
343 - fixed the bug where SemaphoreSet::guard
344 was the same as timed_guard and timed_guard was missing.
345 - fix a memleak in Coro::Timer.
346 - reclassified context sharing as not experimental.
347
348 0.534 Sun Apr 14 03:05:12 CEST 2002
349 - fixed backspace => tab in header parsing (myhttpd).
350 - added eg/readline, for elmex.
351 - Coro::Event now calls ->start on first call instead of
352 ->again, which created wrong timeouts for the first ->next.
353 - fixed a bug where Coro::Socket returned a closed socket instead
354 of nothing on ECONNREFUSED and similar error conditions.
355
356 0.533 Mon Feb 18 18:49:40 CET 2002
357 - adapt to finally working Event-0.85.
358 - fixed buggy event initialization (trapped under windows, but how
359 could it possibly have worked anywhere?)
360
361 0.532 Wed Jan 16 02:45:32 CET 2002
362 - removed the reference to pp_entersub, might work on
363 (some) win32 perls now (testsuite works under cygwin,
364 without Event, which freezes).
365
366 0.531 Mon Dec 10 22:18:44 CET 2001
367 - Fixed a bug in SemaphoreSet::timed_down.
368
369 0.53 Tue Nov 27 21:11:13 CET 2001
370 - some tests for Event.
371 - slightly different internal architecture to get refcnt into the object
372 and not the reference. might fix a few bugs, certainly did introduce
373 new ones.
374 - Coro::Timer (independent of Event).
375 - new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
376
377 0.52 Tue Nov 6 21:36:18 CET 2001
378 - ported to cygwin (trivial).
379 patch by Gerrit P. Haase <gp@familiehaase.de>.
380 - small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
381
382 0.51 Thu Nov 1 20:39:01 CET 2001
383 - terminate/cancel now work properly (otherwise termination
384 could cause a "next coroutine is not and contains not..."
385 error.
386 - added Coro::Socket::shutdown.
387 - Coro::Event::loop no is the same as Event::loop.
388 - implemented terminate with args + join.
389
390 0.5 Fri Sep 28 16:15:35 CEST 2001
391 - fixed "print" on a Coro::Handle. The print method worked.
392 - small tweaks (seem to reduce memory consumption a lot)
393 in various modules.
394 - splendid use of "no warnings" scattered throughout.
395 - added Coro::Handle::rbuf, fixed Coro::Handle::fh.
396
397 0.49 Sun Sep 16 02:42:45 CEST 2001
398 - changed some method calls to function calls for speed
399 inside Coro::Handle.
400 - make Coro::Handle use an array instead of a hash for
401 speed reasons.
402 - IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
403 sjlj and ucontext should now work.
404 - IRIX-specific port for libcoro.
405 - swapped order of accept results to match IO::Socket.
406 - changed getsock/peername to sock/peername to match IO::Socket.
407 - fixed a bug that caused segfault when returning to main task
408 under some circumstances.
409 - other bugfixes.
410
411 0.45 Sun Sep 2 02:54:01 CEST 2001
412 - new method Coro::Handle::timeout.
413 - corrected speling of set...name to get...name in Coro::Socket.
414 - Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
415 - Coro::Handle now supports fileno and FILENO.
416 - added eg/myhttpd, a web server.
417 - Coro::Socket now accepts numeric ports as well as "port(number)"
418 syntax.
419 - moved some scheduling primitives into xs code. more to come.
420 - new simple priority system.
421 - implemented Coro::Event using XS, almost four times faster!
422 - small memory corruption problem fixed (boy that was difficult).
423
424 0.13 Wed Aug 8 16:53:07 CEST 2001
425 - new method Coro::Handle::readline.
426 - added eg/lwp and Coro::Handle::autoflush, to make LWP work.
427 (see eg/lwp on how to make LWP non-blocking).
428 - renamed Coro::Socket::new_inet to new.
429 - added Coro::Util, some utility functions.
430 - die/eval now works better (still get annoying (but true ;)
431 "Callback called exit" messages).
432 - Coro::Handle now supports timeout, and Coro::Socket Timeout.
433 - much better Coro::Socket support.
434
435 0.12 Fri Jul 27 04:19:01 CEST 2001
436 - do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
437 - very experimental stack sharing algorithm. not 100% safe but
438 should work well in practise ;)
439 - added Coro::RWLock.
440 - Coro::Specific now works.
441
442 0.11 Tue Jul 24 22:49:21 CEST 2001
443 - added specialized hack for newer and older linux versions (fast).
444 - renamed Coro::Event::IO to Coro::Handle.
445 - new module Coro::Socket.
446
447 0.1 Tue Jul 24 01:47:53 CEST 2001
448 - release candidate 3. A rather new internal structure :(
449 - the great renaming: Damian Conway gave me a suitable replacement
450 for yield.
451 - added Coro/libcoro, a portable coroutine implementation for C
452 (not even perl-dependent!!!), which can be used by Coro::State.
453 - renamed SAVE_DEFSV (on xs-level only) to avoid symbol clash in
454 perl-5.6.
455 - new function Coro::Event::idle.
456 - the idle process is now overriden
457 by default in Coro::Event.
458 - Coro::Channel now enforces the size.
459 - canceling events now works in all cases.
460 - Coro state now include $_ and $@.
461 - yet another bug workaround that I do not really understand :(
462 - new module Coro::Event::IO (very undocumented) to do
463 non-blocking i/o.
464 - performance tuning.
465
466 0.08 Thu Jul 19 06:13:25 CEST 2001
467 - release candidate 2 (new functionality).
468 - add Coro::State::flush function.
469 - transfer now supports a flags value (mostly for speed ATM).
470 - might compile and work in the presence of threads now.
471 - continuations have a saner syntax.
472 - no more memleaks.
473
474 0.07 Tue Jul 17 17:40:18 CEST 2001
475 - release candidate 1 ;)
476 - slightly nicer code.
477 - fixed a scheduling bug in Coro::Event.
478
479 0.06 Tue Jul 17 04:23:24 CEST 2001
480 - ok, I found the showstopper - the same sub must not be
481 re-entered in two different coroutines, otherwise => crash. I
482 see no easy solution to this problem, except by walking the call
483 chaing and saving/restoring the cv's, which is what I do now.
484 - memory leaks still latent, especially at thread termination.
485 - Coro::Event now works (haha).
486
487 0.05 Sun Jul 15 17:32:20 CEST 2001
488 - fixed a few issues in Coro::Event.
489 - I forgot to include Coro::Event in 0.04 :(:(:(
490
491 0.04 Sun Jul 15 05:24:59 CEST 2001
492 - @_ is now properly localized.
493 - Coro::State is now easier subclassable.
494 - Coro::Cont now coroutine-aware.
495 - Coro::Specific is a low-overhead module to create
496 coroutine-specific vars.
497 - Coro::Event provides a simple interface to Event.
498
499 0.03 Fri Jul 13 14:51:52 CEST 2001
500 - transfer() now implemented in XS (beware).
501 - new module Coro::Cont for really faked continuations.
502 - big internal architecture changes: Coro::State is now
503 really low-level and can thus be used to implement other
504 interesting things, While "Coro::" implements a process-like
505 model. Still crude and subject to change.
506 - $_ and $@ are no longer being localized.
507
508 0.02 Tue Jul 10 01:38:17 CEST 2001
509 - implemented "async" attribute.
510 - $_ and $@ are now localized.
511 - added Coro::Channel.
512 - more testcases, still no docs.
513
514 0.01 Tue Jul 3 02:18:41 CEST 2001
515 - original version; copied from Convert::Scalar.
516