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Revision: 1.245
Committed: Thu Sep 27 20:14:49 2007 UTC (16 years, 7 months ago) by root
Branch: MAIN
Changes since 1.244: +3 -1 lines
Log Message:
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File Contents

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