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Revision: 1.218
Committed: Fri Apr 13 03:57:14 2007 UTC (17 years, 1 month ago) by root
Branch: MAIN
Changes since 1.217: +3 -0 lines
Log Message:
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File Contents

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