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Revision: 1.247
Committed: Mon Oct 1 23:54:36 2007 UTC (16 years, 7 months ago) by root
Branch: MAIN
Changes since 1.246: +1 -1 lines
Log Message:
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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 - reduce initial stack sizes to allow for "micro-coroutines".
17 - better async_pool resource management, moved parts of async_pool
18 handling to XS (major speed improvement).
19 - actually croak before modifying important data structures.
20 - refuse to transfer while compiling.
21 - possibly support eval EXPR better now.
22 - enable assembly method per default on linux+bsd x86+amd64.
23 - many minor tweaks.
24
25 3.63 Wed May 16 14:10:06 CEST 2007
26 - implement handcoded assembly for x86/amd64 SVR ABI.
27
28 3.62 Fri Apr 27 21:36:06 CEST 2007
29 - upgrade libcoro (which might set unwind info correctly).
30 - change default on linux to setjmp/longjmp.
31
32 3.61 Thu Apr 19 12:36:18 CEST 2007
33 - Coro::Storable caused an endless loop when thawing invalid
34 pst's sometimes.
35 - use a Semaphore in Coro::Storable, as Storable doesn't
36 seem to be reentrant (although it is documented to
37 be threadsafe...).
38 - fix Coro::Signal to bring back the original unreliable
39 but stateful semantics.
40 - fixed a lot of typos in Coro.pm (patch submitted by David
41 Steinbrunner, which applied flawlessly).
42
43 3.6 Sat Apr 14 17:13:31 CEST 2007
44 - added some bugfixes to get eg/myhttpd working again.
45 - added Coro::Storable for often-cede'ing freeze/thaw.
46 - try to do a clean exit when a coroutine calls exit
47 (EXPERIMENTAL).
48 - got rid of indirect call through _coro_init.
49 - updated the partly antique examples in eg/ to
50 work again and be a bit less magic, too.
51 - fixed Coro::Signal semantics to work as documented again.
52
53 3.55 Sun Mar 25 01:20:47 CET 2007
54 - add SAVE_DEFFH to save the default filehandle and enable
55 it by default.
56 - finally move socket-operations from Coro::Socket to Coro::Handle
57 to be able to unblock foreign sockets.
58 - add Coro::State::save_also and guarded_save.
59 - add count accessor to Coro::Semaphore.
60 - add Coro::State::cctx_stacksize.
61 - just for the fun of it, do not rely on implicit context,
62 which can dramatically improve performance, but people
63 using windows-process-emulation perls do not care much about
64 performance.
65
66 3.51 Sun Mar 4 14:18:04 CET 2007
67 - fixed a problem when you weakened references to Coro::State's
68 (patch by Yuval Kogman).
69
70 3.501 Wed Feb 28 12:44:07 CET 2007
71 - rename some global symbols as macosx from hell redefines
72 them without asking.
73
74 3.5 Tue Feb 13 20:22:53 CET 2007
75 - do AnyEvent model detection earlier, avoiding problems
76 caused by first using AnyEvent and later Coro::Event.
77 - implement and document Coro::Event event objects.
78 - fix a potential problem in Coro::Event causing crashes.
79 - initialise PL_comppad when creating a new coroutine,
80 avoids crashes on early coro destruction.
81
82 3.41 Mon Jan 22 19:19:49 CET 2007
83 - readline on Coro::Handle did not support undefined $/,
84 nor did it deliver partial lines on EOF or error.
85 - implement malloc fallback for stack allocation because
86 stupid broken idiotic OSX has a stupid broken
87 idiotic fits-the-whole-os mmap "implementation" and
88 my dick feels longer if Coro is portable even to
89 obsolete platforms.
90
91 3.4 Fri Jan 19 21:52:54 CET 2007
92 - remove t/09_timer.t, as it isn't really testing much
93 but was rather flaky in practise.
94 - async_pool coro would keep arguments and callback alive until
95 it was reused.
96 - cancellation of a coroutine could cause spurious idle calls
97 in cede_notself.
98
99 3.3 Sat Jan 6 03:45:00 CET 2007
100 - implement $coro->on_destroy.
101 - Coro::Event blocking semantics have been changed,
102 documented and - hopefully - improved.
103 - fix nice adding, not subtracting, from priority.
104 - fix ->prio and api_is_ready (patch by Mark Hinds).
105 - fixed an assert ("... == prev__cctx->idle_te")
106 that could errronously trigger.
107 - fix various large and small memleaks.
108 - use a (hopefully) more stable cancel implementation
109 that immediately frees the coroutine data.
110 - cede/cede_notself return a status now.
111 - added Coro::guard function.
112 - added a global coroutine pool for jobs (on my machine,
113 I can create and execute 48k simple coros/s with async,
114 and 128k coros with async_pool).
115 - Coro::AIO now uses the coroutine priority as io priority.
116
117 3.2 Fri Dec 22 05:07:09 CET 2006
118 - improve portability to slightly older perls.
119 - use cleaner coroutine destruction.
120 - simplify configuration for users.
121 - optionally (unrecommended) prefer perl functions over
122 their coro replacements.
123
124 3.11 Tue Dec 5 13:11:24 CET 2006
125 - fixed some bogus assert's, but as perl.h disables assert even
126 without NDEBUG (thank you very much), not too many people should
127 notice (that did include myself). Andreas König noticed, though :)
128 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
129 it. Also noticed by Andreas König :)
130 - save/restore tainted status.
131 - verified to pass the testsuite on my 5.9.5.
132
133 3.1 Mon Dec 4 23:03:40 CET 2006
134 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
135 - incompatible change: transfer flags are now per-state.
136 - give a better error message on deadlock.
137 - document Coro::nready.
138 - enhanced testsuite.
139
140 3.01 Sun Dec 3 23:47:42 CET 2006
141 - forgot to include Coro::Timer.
142
143 3.0 Sun Dec 3 22:57:25 CET 2006
144 - the "FINALLY COMPLETELY STABLE" release (coming soon:
145 the "FAMOUS LAST WORDS" release).
146 - implement a new stack sharing algorithm, which uses a stack
147 pool (size currently hardcoded).
148 - make stack sharing mandatory (it no longer uses a heuristic).
149 - eval/die no longer cause weird problems under heavy use.
150 - Coro::Event could cause livelocks if it was used but
151 no Coro::Event watchers were used.
152 - Coro::Event now uses asynccheck as prepare does not
153 check for changed watchers.
154 - Coro::Event allows multiple waiting coros and will wake up one
155 per event.
156 - Coro::Event should be cleaner and more efficient now.
157 - new utility function Coro::unblock_sub.
158 - document the sad fact that Event is no longer reentrant.
159 - putting a coroutine into the ready queue twice could under
160 some circumstances lead to stack corruption.
161 - minor incompatibility: subclassing Coro::State is supported
162 directly now without going through a _coro_state member.
163 - state/coro switching is much faster now.
164 - very minor optimisations and code/documentation cleanup.
165 - avoid problems due to compiler inlining.
166 - removed timers from Coro::Timer -> use AnyEvent instead.
167 - replaced Coro::idle coroutine by (cleaner) idle handler.
168 - updated to newest libcoro.
169 - implement enhanced support for valgrind.
170 - implement is_ready and return value for ready.
171 - removed Coro::Cont, it was a misnomer (it's generators),
172 and it was somewhat annoying to get it right. Will come back
173 if somebody asks for it :)
174 - many ->wait methods and Coro::Event could return
175 spuriously without the event having happened.
176
177 2.5 Tue Nov 7 12:22:33 CET 2006
178 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
179 use AnyEvent, moved them to Coro/.
180 - added Coro::LWP which contains all the uglyness required to
181 make LWP non-blocking.
182 - should work with perl 5.9.x now (Andreas König made me do it).
183 - fixed another bug in Coro::Select when the timeout was undef.
184 - reuse PL_start_env for all coros, saves some memory per coroutine.
185 - manage PL_top_env differently, hopefully to avoid panic: top_env.
186 - timeout argument was not properly used in Coro::Socket.
187 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
188 - emulate undocumented(!) functionality of IO::Socket required
189 by LWP(!!).
190 - updated eg/lwp to work with newer lwp's.
191 - remove "FATAL: uncaught exception" prefix. Coroutines that die
192 kill the whole process, just as exceptions in the main "coroutine"
193 did already.
194
195 2.1 Wed Nov 1 23:01:13 CET 2006
196 - fix a long-standing bug in Coro::Select where select with
197 zero timeout would instead change the current default filehandle.
198 - use a simpler and hopefully more robust way to clone padlists
199 (uses less memory and a perl function instead of our own).
200 - coro can now create a stack guard area on many architectures.
201 - Coro::AIO properly reexports additional functions from IO::AIO.
202 - updated libcoro with a workaround for OS X,
203 pach and testing by Michael Schwern.
204
205 2.0 Tue Oct 24 05:47:17 CEST 2006
206 - support additional aio requests in Coro::AIO.
207
208 1.9 (never properly released due to a glitch)
209
210 1.8 Thu Feb 2 00:59:06 CET 2006
211 - applied suggested patch by SAMV to avoid problems during stupid
212 mark & sweep gc run.
213 - applied patch by Scott Walters for 5.9.3 compatibility.
214
215 1.7 Tue Dec 27 01:41:58 CET 2005
216 - added Coro::AIO, a thin wrapper around IO::AIO.
217 - improved Makefile.PL explanations.
218
219 1.6 Mon Dec 12 21:30:05 CET 2005
220 - additionally save PM_curpm might fix as-of-yet
221 unseen problems with regex matches being attributed to the
222 wrong package.
223 - add t/10_bugs.t, which currently checks against imho broken
224 perls that use 0.26MB of stack space per Perl_magic_get
225 invocation (newer linuxes) as opposed to the 0.0002MB perl
226 normally uses.
227 - make stacksize configurable for the ultimate debian experience.
228
229 1.51 Mon Dec 12 18:48:36 CET 2005
230 - remove debugging warn() accidentally left in Coro::Select.
231
232 1.5 Tue Nov 29 13:32:44 CET 2005
233 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
234 - fix Coro::Select 'select'.
235 - strict'ify some modules.
236 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
237 - use XSLoader in selected modules.
238 - remove some 5.6 compatibility cruft.
239
240 1.4 Tue Sep 6 00:11:05 CEST 2005
241 - libcoro did not take into account the trampoline on amd64,
242 when 'l'inux method was used.
243
244 1.31 Tue Aug 30 23:31:33 CEST 2005
245 - some portability fixes/workarounds.
246
247 1.3 Sat Aug 20 03:08:56 CEST 2005
248 - no code changes. module seems to work fine.
249 - improve Coro::State docs, remove reference to nonexisting
250 Coro::State::flush method.
251 - no longer autodetect windows, present it as an option instead.
252
253 1.2 Mon May 16 02:00:55 CEST 2005
254 - included libcoro.c earlier in State.xs, might improve portability.
255 - use a faster and possibly more stable Coro::Cont implementation.
256 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
257 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
258 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
259
260 1.11 Thu Mar 3 18:00:52 CET 2005
261 - change of contact address.
262
263 1.1 Tue Feb 22 20:51:16 CET 2005
264 - support [l]inux method on amd64.
265 - allow some context switches while compiling/eval'ing.
266
267 1.0 Tue Aug 10 03:47:27 CEST 2004
268 - Event 0.89 fixes the bug again.
269 - fix the remaining(??) memleak. I didn't free the cache-AV for
270 padlists, so one AV per created anon-sub leaked.
271
272 0.97 Fri May 14 15:23:32 CEST 2004
273 - remove stupid gcc extension that was an experiment only anyway.
274
275 0.96 Thu May 13 18:09:29 CEST 2004
276 - tell people if they have yet another broken Event variant.
277 - made Coro to work _better_ with threads (it seems that, as long
278 as you use Coros in one thread only everything will work fine.
279 Looking at the perl source the problem might be missing locking
280 between Coro and some perl internal routines. That's not easily
281 fixable).
282 - (hopefully) got rid of the static xnext inside transfer.
283
284 0.95 Sun Feb 15 03:20:28 CET 2004
285 - removed Coro::State::flush, implemented a new and much
286 faster caching mechanism by attaching magic to the CV.
287 - a memleak with (real) closures remains.
288 - dramatically reduced size of stacks to 65536 (linux/x86), after
289 observing that even myhttpd never had more than a kilobyte
290 of stack in use (stack is still only physically allocated in
291 pagesize increments for systems suporting mmap).
292 - fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
293 - fix for threaded perl.
294
295 0.9 Sun Nov 23 04:32:39 CET 2003
296 - fix a few very hard to track down but (of course) stupid
297 memory leaks.
298 - stringify version number to avoid locale problems :(.
299 - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
300 hopefully ignoring it "just works".
301
302 0.8 Wed Nov 5 19:38:40 CET 2003
303 - port to perl5.005_03, but only 5.8.x+ is supported!
304 - honor LocalAddr even without LocalPort in Coro::Socket.
305
306 0.7 Tue May 27 03:12:38 CEST 2003
307 - the version jump indicates some level of testing, not gobs
308 of new features.
309 - uh... I found the prompt function in ExtUtils::MakeMaker.
310 Highly correct stuff, that is...
311 - fixed(?) a bug with die's in coroutines causing "panic: top_env".
312 the fix is not well understood by the author, so beware :(.
313
314 0.652 Thu May 8 02:54:46 CEST 2003
315 - Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
316 cause version 4 doesn't have ucontext.
317 - Benjamin Reed reported that setjmp works fine on darwin,
318 so preselect it.
319
320 0.651 Sat Mar 29 15:00:23 CET 2003
321 - fix a bug in Coro::Handle where some bytes could get lost
322 on reading, reported by jason@nichego.net.
323
324 0.65 Sun Mar 23 00:08:26 CET 2003
325 - added a README.linux-glibc.
326 - new module Coro::Select.
327 - also save/restore PL_comppad, fixes segfaults with 5.8.1.
328 (I never claimed that I know what I am doing ;).
329 - set default to setjmp/longjmp on non-x86-linux.
330
331 0.6 Thu Nov 21 11:09:06 CET 2002
332 - made lazy context switching the default.
333 - fixed the bug where SemaphoreSet::guard
334 was the same as timed_guard and timed_guard was missing.
335 - fix a memleak in Coro::Timer.
336 - reclassified context sharing as not experimental.
337
338 0.534 Sun Apr 14 03:05:12 CEST 2002
339 - fixed backspace => tab in header parsing (myhttpd).
340 - added eg/readline, for elmex.
341 - Coro::Event now calls ->start on first call instead of
342 ->again, which created wrong timeouts for the first ->next.
343 - fixed a bug where Coro::Socket returned a closed socket instead
344 of nothing on ECONNREFUSED and similar error conditions.
345
346 0.533 Mon Feb 18 18:49:40 CET 2002
347 - adapt to finally working Event-0.85.
348 - fixed buggy event initialization (trapped under windows, but how
349 could it possibly have worked anywhere?)
350
351 0.532 Wed Jan 16 02:45:32 CET 2002
352 - removed the reference to pp_entersub, might work on
353 (some) win32 perls now (testsuite works under cygwin,
354 without Event, which freezes).
355
356 0.531 Mon Dec 10 22:18:44 CET 2001
357 - Fixed a bug in SemaphoreSet::timed_down.
358
359 0.53 Tue Nov 27 21:11:13 CET 2001
360 - some tests for Event.
361 - slightly different internal architecture to get refcnt into the object
362 and not the reference. might fix a few bugs, certainly did introduce
363 new ones.
364 - Coro::Timer (independent of Event).
365 - new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
366
367 0.52 Tue Nov 6 21:36:18 CET 2001
368 - ported to cygwin (trivial).
369 patch by Gerrit P. Haase <gp@familiehaase.de>.
370 - small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
371
372 0.51 Thu Nov 1 20:39:01 CET 2001
373 - terminate/cancel now work properly (otherwise termination
374 could cause a "next coroutine is not and contains not..."
375 error.
376 - added Coro::Socket::shutdown.
377 - Coro::Event::loop no is the same as Event::loop.
378 - implemented terminate with args + join.
379
380 0.5 Fri Sep 28 16:15:35 CEST 2001
381 - fixed "print" on a Coro::Handle. The print method worked.
382 - small tweaks (seem to reduce memory consumption a lot)
383 in various modules.
384 - splendid use of "no warnings" scattered throughout.
385 - added Coro::Handle::rbuf, fixed Coro::Handle::fh.
386
387 0.49 Sun Sep 16 02:42:45 CEST 2001
388 - changed some method calls to function calls for speed
389 inside Coro::Handle.
390 - make Coro::Handle use an array instead of a hash for
391 speed reasons.
392 - IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
393 sjlj and ucontext should now work.
394 - IRIX-specific port for libcoro.
395 - swapped order of accept results to match IO::Socket.
396 - changed getsock/peername to sock/peername to match IO::Socket.
397 - fixed a bug that caused segfault when returning to main task
398 under some circumstances.
399 - other bugfixes.
400
401 0.45 Sun Sep 2 02:54:01 CEST 2001
402 - new method Coro::Handle::timeout.
403 - corrected speling of set...name to get...name in Coro::Socket.
404 - Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
405 - Coro::Handle now supports fileno and FILENO.
406 - added eg/myhttpd, a web server.
407 - Coro::Socket now accepts numeric ports as well as "port(number)"
408 syntax.
409 - moved some scheduling primitives into xs code. more to come.
410 - new simple priority system.
411 - implemented Coro::Event using XS, almost four times faster!
412 - small memory corruption problem fixed (boy that was difficult).
413
414 0.13 Wed Aug 8 16:53:07 CEST 2001
415 - new method Coro::Handle::readline.
416 - added eg/lwp and Coro::Handle::autoflush, to make LWP work.
417 (see eg/lwp on how to make LWP non-blocking).
418 - renamed Coro::Socket::new_inet to new.
419 - added Coro::Util, some utility functions.
420 - die/eval now works better (still get annoying (but true ;)
421 "Callback called exit" messages).
422 - Coro::Handle now supports timeout, and Coro::Socket Timeout.
423 - much better Coro::Socket support.
424
425 0.12 Fri Jul 27 04:19:01 CEST 2001
426 - do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
427 - very experimental stack sharing algorithm. not 100% safe but
428 should work well in practise ;)
429 - added Coro::RWLock.
430 - Coro::Specific now works.
431
432 0.11 Tue Jul 24 22:49:21 CEST 2001
433 - added specialized hack for newer and older linux versions (fast).
434 - renamed Coro::Event::IO to Coro::Handle.
435 - new module Coro::Socket.
436
437 0.1 Tue Jul 24 01:47:53 CEST 2001
438 - release candidate 3. A rather new internal structure :(
439 - the great renaming: Damian Conway gave me a suitable replacement
440 for yield.
441 - added Coro/libcoro, a portable coroutine implementation for C
442 (not even perl-dependent!!!), which can be used by Coro::State.
443 - renamed SAVE_DEFSV (on xs-level only) to avoid symbol clash in
444 perl-5.6.
445 - new function Coro::Event::idle.
446 - the idle process is now overriden
447 by default in Coro::Event.
448 - Coro::Channel now enforces the size.
449 - canceling events now works in all cases.
450 - Coro state now include $_ and $@.
451 - yet another bug workaround that I do not really understand :(
452 - new module Coro::Event::IO (very undocumented) to do
453 non-blocking i/o.
454 - performance tuning.
455
456 0.08 Thu Jul 19 06:13:25 CEST 2001
457 - release candidate 2 (new functionality).
458 - add Coro::State::flush function.
459 - transfer now supports a flags value (mostly for speed ATM).
460 - might compile and work in the presence of threads now.
461 - continuations have a saner syntax.
462 - no more memleaks.
463
464 0.07 Tue Jul 17 17:40:18 CEST 2001
465 - release candidate 1 ;)
466 - slightly nicer code.
467 - fixed a scheduling bug in Coro::Event.
468
469 0.06 Tue Jul 17 04:23:24 CEST 2001
470 - ok, I found the showstopper - the same sub must not be
471 re-entered in two different coroutines, otherwise => crash. I
472 see no easy solution to this problem, except by walking the call
473 chaing and saving/restoring the cv's, which is what I do now.
474 - memory leaks still latent, especially at thread termination.
475 - Coro::Event now works (haha).
476
477 0.05 Sun Jul 15 17:32:20 CEST 2001
478 - fixed a few issues in Coro::Event.
479 - I forgot to include Coro::Event in 0.04 :(:(:(
480
481 0.04 Sun Jul 15 05:24:59 CEST 2001
482 - @_ is now properly localized.
483 - Coro::State is now easier subclassable.
484 - Coro::Cont now coroutine-aware.
485 - Coro::Specific is a low-overhead module to create
486 coroutine-specific vars.
487 - Coro::Event provides a simple interface to Event.
488
489 0.03 Fri Jul 13 14:51:52 CEST 2001
490 - transfer() now implemented in XS (beware).
491 - new module Coro::Cont for really faked continuations.
492 - big internal architecture changes: Coro::State is now
493 really low-level and can thus be used to implement other
494 interesting things, While "Coro::" implements a process-like
495 model. Still crude and subject to change.
496 - $_ and $@ are no longer being localized.
497
498 0.02 Tue Jul 10 01:38:17 CEST 2001
499 - implemented "async" attribute.
500 - $_ and $@ are now localized.
501 - added Coro::Channel.
502 - more testcases, still no docs.
503
504 0.01 Tue Jul 3 02:18:41 CEST 2001
505 - original version; copied from Convert::Scalar.
506