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Revision: 1.215
Committed: Mon Mar 19 15:50:48 2007 UTC (17 years, 2 months ago) by root
Branch: MAIN
Changes since 1.214: +6 -3 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
6 3.55
7 - add SAVE_DEFFH to save the default filehandle and enable
8 it by default.
9 - finally move socket-operations from Coro::Socket to Coro::Handle
10 to be able to unblock foreign sockets.
11 - add Coro::State::save_also and guarded_save.
12 - add count accessor to Coro::Semaphore.
13 - add Coro::State::cctx_stacksize.
14 - just for the fun of it, do not rely on implicit context,
15 which can dramatically improve performance, but people
16 using windows-process-emulation perls do not care much about
17 performance.
18
19 3.51 Sun Mar 4 14:18:04 CET 2007
20 - fixed a problem when you weakened references to Coro::State's
21 (patch by Yuval Kogman).
22
23 3.501 Wed Feb 28 12:44:07 CET 2007
24 - rename some global symbols as macosx from hell redefines
25 them without asking.
26
27 3.5 Tue Feb 13 20:22:53 CET 2007
28 - do AnyEvent model detection earlier, avoiding problems
29 caused by first using AnyEvent and later Coro::Event.
30 - implement and document Coro::Event event objects.
31 - fix a potential problem in Coro::Event causing crashes.
32 - initialise PL_comppad when creating a new coroutine,
33 avoids crashes on early coro destruction.
34
35 3.41 Mon Jan 22 19:19:49 CET 2007
36 - readline on Coro::Handle did not support undefined $/,
37 nor did it deliver partial lines on EOF or error.
38 - implement malloc fallback for stack allocation because
39 stupid broken idiotic OSX has a stupid broken
40 idiotic fits-the-whole-os mmap "implementation" and
41 my dick feels longer if Coro is portable even to
42 obsolete platforms.
43
44 3.4 Fri Jan 19 21:52:54 CET 2007
45 - remove t/09_timer.t, as it isn't really testing much
46 but was rather flaky in practise.
47 - async_pool coro would keep arguments and callback alive until
48 it was reused.
49 - cancellation of a coroutine could cause spurious idle calls
50 in cede_notself.
51
52 3.3 Sat Jan 6 03:45:00 CET 2007
53 - implement $coro->on_destroy.
54 - Coro::Event blocking semantics have been changed,
55 documented and - hopefully - improved.
56 - fix nice adding, not subtracting, from priority.
57 - fix ->prio and api_is_ready (patch by Mark Hinds).
58 - fixed an assert ("... == prev__cctx->idle_te")
59 that could errronously trigger.
60 - fix various large and small memleaks.
61 - use a (hopefully) more stable cancel implementation
62 that immediately frees the coroutine data.
63 - cede/cede_notself return a status now.
64 - added Coro::guard function.
65 - added a global coroutine pool for jobs (on my machine,
66 I can create and execute 48k simple coros/s with async,
67 and 128k coros with async_pool).
68 - Coro::AIO now uses the coroutine priority as io priority.
69
70 3.2 Fri Dec 22 05:07:09 CET 2006
71 - improve portability to slightly older perls.
72 - use cleaner coroutine destruction.
73 - simplify configuration for users.
74 - optionally (unrecommended) prefer perl functions over
75 their coro replacements.
76
77 3.11 Tue Dec 5 13:11:24 CET 2006
78 - fixed some bogus assert's, but as perl.h disables assert even
79 without NDEBUG (thank you very much), not too many people should
80 notice (that did include myself). Andreas König noticed, though :)
81 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
82 it. Also noticed by Andreas König :)
83 - save/restore tainted status.
84 - verified to pass the testsuite on my 5.9.5.
85
86 3.1 Mon Dec 4 23:03:40 CET 2006
87 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
88 - incompatible change: transfer flags are now per-state.
89 - give a better error message on deadlock.
90 - document Coro::nready.
91 - enhanced testsuite.
92
93 3.01 Sun Dec 3 23:47:42 CET 2006
94 - forgot to include Coro::Timer.
95
96 3.0 Sun Dec 3 22:57:25 CET 2006
97 - the "FINALLY COMPLETELY STABLE" release (coming soon:
98 the "FAMOUS LAST WORDS" release).
99 - implement a new stack sharing algorithm, which uses a stack
100 pool (size currently hardcoded).
101 - make stack sharing mandatory (it no longer uses a heuristic).
102 - eval/die no longer cause weird problems under heavy use.
103 - Coro::Event could cause livelocks if it was used but
104 no Coro::Event watchers were used.
105 - Coro::Event now uses asynccheck as prepare does not
106 check for changed watchers.
107 - Coro::Event allows multiple waiting coros and will wake up one
108 per event.
109 - Coro::Event should be cleaner and more efficient now.
110 - new utility function Coro::unblock_sub.
111 - document the sad fact that Event is no longer reentrant.
112 - putting a coroutine into the ready queue twice could under
113 some circumstances lead to stack corruption.
114 - minor incompatibility: subclassing Coro::State is supported
115 directly now without going through a _coro_state member.
116 - state/coro switching is much faster now.
117 - very minor optimisations and code/documentation cleanup.
118 - avoid problems due to compiler inlining.
119 - removed timers from Coro::Timer -> use AnyEvent instead.
120 - replaced Coro::idle coroutine by (cleaner) idle handler.
121 - updated to newest libcoro.
122 - implement enhanced support for valgrind.
123 - implement is_ready and return value for ready.
124 - removed Coro::Cont, it was a misnomer (it's generators),
125 and it was somewhat annoying to get it right. Will come back
126 if somebody asks for it :)
127 - many ->wait methods and Coro::Event could return
128 spuriously without the event having happened.
129
130 2.5 Tue Nov 7 12:22:33 CET 2006
131 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
132 use AnyEvent, moved them to Coro/.
133 - added Coro::LWP which contains all the uglyness required to
134 make LWP non-blocking.
135 - should work with perl 5.9.x now (Andreas König made me do it).
136 - fixed another bug in Coro::Select when the timeout was undef.
137 - reuse PL_start_env for all coros, saves some memory per coroutine.
138 - manage PL_top_env differently, hopefully to avoid panic: top_env.
139 - timeout argument was not properly used in Coro::Socket.
140 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
141 - emulate undocumented(!) functionality of IO::Socket required
142 by LWP(!!).
143 - updated eg/lwp to work with newer lwp's.
144 - remove "FATAL: uncaught exception" prefix. Coroutines that die
145 kill the whole process, just as exceptions in the main "coroutine"
146 did already.
147
148 2.1 Wed Nov 1 23:01:13 CET 2006
149 - fix a long-standing bug in Coro::Select where select with
150 zero timeout would instead change the current default filehandle.
151 - use a simpler and hopefully more robust way to clone padlists
152 (uses less memory and a perl function instead of our own).
153 - coro can now create a stack guard area on many architectures.
154 - Coro::AIO properly reexports additional functions from IO::AIO.
155 - updated libcoro with a workaround for OS X,
156 pach and testing by Michael Schwern.
157
158 2.0 Tue Oct 24 05:47:17 CEST 2006
159 - support additional aio requests in Coro::AIO.
160
161 1.9 (never properly released due to a glitch)
162
163 1.8 Thu Feb 2 00:59:06 CET 2006
164 - applied suggested patch by SAMV to avoid problems during stupid
165 mark & sweep gc run.
166 - applied patch by Scott Walters for 5.9.3 compatibility.
167
168 1.7 Tue Dec 27 01:41:58 CET 2005
169 - added Coro::AIO, a thin wrapper around IO::AIO.
170 - improved Makefile.PL explanations.
171
172 1.6 Mon Dec 12 21:30:05 CET 2005
173 - additionally save PM_curpm might fix as-of-yet
174 unseen problems with regex matches being attributed to the
175 wrong package.
176 - add t/10_bugs.t, which currently checks against imho broken
177 perls that use 0.26MB of stack space per Perl_magic_get
178 invocation (newer linuxes) as opposed to the 0.0002MB perl
179 normally uses.
180 - make stacksize configurable for the ultimate debian experience.
181
182 1.51 Mon Dec 12 18:48:36 CET 2005
183 - remove debugging warn() accidentally left in Coro::Select.
184
185 1.5 Tue Nov 29 13:32:44 CET 2005
186 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
187 - fix Coro::Select 'select'.
188 - strict'ify some modules.
189 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
190 - use XSLoader in selected modules.
191 - remove some 5.6 compatibility cruft.
192
193 1.4 Tue Sep 6 00:11:05 CEST 2005
194 - libcoro did not take into account the trampoline on amd64,
195 when 'l'inux method was used.
196
197 1.31 Tue Aug 30 23:31:33 CEST 2005
198 - some portability fixes/workarounds.
199
200 1.3 Sat Aug 20 03:08:56 CEST 2005
201 - no code changes. module seems to work fine.
202 - improve Coro::State docs, remove reference to nonexisting
203 Coro::State::flush method.
204 - no longer autodetect windows, present it as an option instead.
205
206 1.2 Mon May 16 02:00:55 CEST 2005
207 - included libcoro.c earlier in State.xs, might improve portability.
208 - use a faster and possibly more stable Coro::Cont implementation.
209 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
210 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
211 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
212
213 1.11 Thu Mar 3 18:00:52 CET 2005
214 - change of contact address.
215
216 1.1 Tue Feb 22 20:51:16 CET 2005
217 - support [l]inux method on amd64.
218 - allow some context switches while compiling/eval'ing.
219
220 1.0 Tue Aug 10 03:47:27 CEST 2004
221 - Event 0.89 fixes the bug again.
222 - fix the remaining(??) memleak. I didn't free the cache-AV for
223 padlists, so one AV per created anon-sub leaked.
224
225 0.97 Fri May 14 15:23:32 CEST 2004
226 - remove stupid gcc extension that was an experiment only anyway.
227
228 0.96 Thu May 13 18:09:29 CEST 2004
229 - tell people if they have yet another broken Event variant.
230 - made Coro to work _better_ with threads (it seems that, as long
231 as you use Coros in one thread only everything will work fine.
232 Looking at the perl source the problem might be missing locking
233 between Coro and some perl internal routines. That's not easily
234 fixable).
235 - (hopefully) got rid of the static xnext inside transfer.
236
237 0.95 Sun Feb 15 03:20:28 CET 2004
238 - removed Coro::State::flush, implemented a new and much
239 faster caching mechanism by attaching magic to the CV.
240 - a memleak with (real) closures remains.
241 - dramatically reduced size of stacks to 65536 (linux/x86), after
242 observing that even myhttpd never had more than a kilobyte
243 of stack in use (stack is still only physically allocated in
244 pagesize increments for systems suporting mmap).
245 - fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
246 - fix for threaded perl.
247
248 0.9 Sun Nov 23 04:32:39 CET 2003
249 - fix a few very hard to track down but (of course) stupid
250 memory leaks.
251 - stringify version number to avoid locale problems :(.
252 - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
253 hopefully ignoring it "just works".
254
255 0.8 Wed Nov 5 19:38:40 CET 2003
256 - port to perl5.005_03, but only 5.8.x+ is supported!
257 - honor LocalAddr even without LocalPort in Coro::Socket.
258
259 0.7 Tue May 27 03:12:38 CEST 2003
260 - the version jump indicates some level of testing, not gobs
261 of new features.
262 - uh... I found the prompt function in ExtUtils::MakeMaker.
263 Highly correct stuff, that is...
264 - fixed(?) a bug with die's in coroutines causing "panic: top_env".
265 the fix is not well understood by the author, so beware :(.
266
267 0.652 Thu May 8 02:54:46 CEST 2003
268 - Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
269 cause version 4 doesn't have ucontext.
270 - Benjamin Reed reported that setjmp works fine on darwin,
271 so preselect it.
272
273 0.651 Sat Mar 29 15:00:23 CET 2003
274 - fix a bug in Coro::Handle where some bytes could get lost
275 on reading, reported by jason@nichego.net.
276
277 0.65 Sun Mar 23 00:08:26 CET 2003
278 - added a README.linux-glibc.
279 - new module Coro::Select.
280 - also save/restore PL_comppad, fixes segfaults with 5.8.1.
281 (I never claimed that I know what I am doing ;).
282 - set default to setjmp/longjmp on non-x86-linux.
283
284 0.6 Thu Nov 21 11:09:06 CET 2002
285 - made lazy context switching the default.
286 - fixed the bug where SemaphoreSet::guard
287 was the same as timed_guard and timed_guard was missing.
288 - fix a memleak in Coro::Timer.
289 - reclassified context sharing as not experimental.
290
291 0.534 Sun Apr 14 03:05:12 CEST 2002
292 - fixed backspace => tab in header parsing (myhttpd).
293 - added eg/readline, for elmex.
294 - Coro::Event now calls ->start on first call instead of
295 ->again, which created wrong timeouts for the first ->next.
296 - fixed a bug where Coro::Socket returned a closed socket instead
297 of nothing on ECONNREFUSED and similar error conditions.
298
299 0.533 Mon Feb 18 18:49:40 CET 2002
300 - adapt to finally working Event-0.85.
301 - fixed buggy event initialization (trapped under windows, but how
302 could it possibly have worked anywhere?)
303
304 0.532 Wed Jan 16 02:45:32 CET 2002
305 - removed the reference to pp_entersub, might work on
306 (some) win32 perls now (testsuite works under cygwin,
307 without Event, which freezes).
308
309 0.531 Mon Dec 10 22:18:44 CET 2001
310 - Fixed a bug in SemaphoreSet::timed_down.
311
312 0.53 Tue Nov 27 21:11:13 CET 2001
313 - some tests for Event.
314 - slightly different internal architecture to get refcnt into the object
315 and not the reference. might fix a few bugs, certainly did introduce
316 new ones.
317 - Coro::Timer (independent of Event).
318 - new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
319
320 0.52 Tue Nov 6 21:36:18 CET 2001
321 - ported to cygwin (trivial).
322 patch by Gerrit P. Haase <gp@familiehaase.de>.
323 - small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
324
325 0.51 Thu Nov 1 20:39:01 CET 2001
326 - terminate/cancel now work properly (otherwise termination
327 could cause a "next coroutine is not and contains not..."
328 error.
329 - added Coro::Socket::shutdown.
330 - Coro::Event::loop no is the same as Event::loop.
331 - implemented terminate with args + join.
332
333 0.5 Fri Sep 28 16:15:35 CEST 2001
334 - fixed "print" on a Coro::Handle. The print method worked.
335 - small tweaks (seem to reduce memory consumption a lot)
336 in various modules.
337 - splendid use of "no warnings" scattered throughout.
338 - added Coro::Handle::rbuf, fixed Coro::Handle::fh.
339
340 0.49 Sun Sep 16 02:42:45 CEST 2001
341 - changed some method calls to function calls for speed
342 inside Coro::Handle.
343 - make Coro::Handle use an array instead of a hash for
344 speed reasons.
345 - IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
346 sjlj and ucontext should now work.
347 - IRIX-specific port for libcoro.
348 - swapped order of accept results to match IO::Socket.
349 - changed getsock/peername to sock/peername to match IO::Socket.
350 - fixed a bug that caused segfault when returning to main task
351 under some circumstances.
352 - other bugfixes.
353
354 0.45 Sun Sep 2 02:54:01 CEST 2001
355 - new method Coro::Handle::timeout.
356 - corrected speling of set...name to get...name in Coro::Socket.
357 - Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
358 - Coro::Handle now supports fileno and FILENO.
359 - added eg/myhttpd, a web server.
360 - Coro::Socket now accepts numeric ports as well as "port(number)"
361 syntax.
362 - moved some scheduling primitives into xs code. more to come.
363 - new simple priority system.
364 - implemented Coro::Event using XS, almost four times faster!
365 - small memory corruption problem fixed (boy that was difficult).
366
367 0.13 Wed Aug 8 16:53:07 CEST 2001
368 - new method Coro::Handle::readline.
369 - added eg/lwp and Coro::Handle::autoflush, to make LWP work.
370 (see eg/lwp on how to make LWP non-blocking).
371 - renamed Coro::Socket::new_inet to new.
372 - added Coro::Util, some utility functions.
373 - die/eval now works better (still get annoying (but true ;)
374 "Callback called exit" messages).
375 - Coro::Handle now supports timeout, and Coro::Socket Timeout.
376 - much better Coro::Socket support.
377
378 0.12 Fri Jul 27 04:19:01 CEST 2001
379 - do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
380 - very experimental stack sharing algorithm. not 100% safe but
381 should work well in practise ;)
382 - added Coro::RWLock.
383 - Coro::Specific now works.
384
385 0.11 Tue Jul 24 22:49:21 CEST 2001
386 - added specialized hack for newer and older linux versions (fast).
387 - renamed Coro::Event::IO to Coro::Handle.
388 - new module Coro::Socket.
389
390 0.1 Tue Jul 24 01:47:53 CEST 2001
391 - release candidate 3. A rather new internal structure :(
392 - the great renaming: Damian Conway gave me a suitable replacement
393 for yield.
394 - added Coro/libcoro, a portable coroutine implementation for C
395 (not even perl-dependent!!!), which can be used by Coro::State.
396 - renamed SAVE_DEFSV (on xs-level only) to avoid symbol clash in
397 perl-5.6.
398 - new function Coro::Event::idle.
399 - the idle process is now overriden
400 by default in Coro::Event.
401 - Coro::Channel now enforces the size.
402 - canceling events now works in all cases.
403 - Coro state now include $_ and $@.
404 - yet another bug workaround that I do not really understand :(
405 - new module Coro::Event::IO (very undocumented) to do
406 non-blocking i/o.
407 - performance tuning.
408
409 0.08 Thu Jul 19 06:13:25 CEST 2001
410 - release candidate 2 (new functionality).
411 - add Coro::State::flush function.
412 - transfer now supports a flags value (mostly for speed ATM).
413 - might compile and work in the presence of threads now.
414 - continuations have a saner syntax.
415 - no more memleaks.
416
417 0.07 Tue Jul 17 17:40:18 CEST 2001
418 - release candidate 1 ;)
419 - slightly nicer code.
420 - fixed a scheduling bug in Coro::Event.
421
422 0.06 Tue Jul 17 04:23:24 CEST 2001
423 - ok, I found the showstopper - the same sub must not be
424 re-entered in two different coroutines, otherwise => crash. I
425 see no easy solution to this problem, except by walking the call
426 chaing and saving/restoring the cv's, which is what I do now.
427 - memory leaks still latent, especially at thread termination.
428 - Coro::Event now works (haha).
429
430 0.05 Sun Jul 15 17:32:20 CEST 2001
431 - fixed a few issues in Coro::Event.
432 - I forgot to include Coro::Event in 0.04 :(:(:(
433
434 0.04 Sun Jul 15 05:24:59 CEST 2001
435 - @_ is now properly localized.
436 - Coro::State is now easier subclassable.
437 - Coro::Cont now coroutine-aware.
438 - Coro::Specific is a low-overhead module to create
439 coroutine-specific vars.
440 - Coro::Event provides a simple interface to Event.
441
442 0.03 Fri Jul 13 14:51:52 CEST 2001
443 - transfer() now implemented in XS (beware).
444 - new module Coro::Cont for really faked continuations.
445 - big internal architecture changes: Coro::State is now
446 really low-level and can thus be used to implement other
447 interesting things, While "Coro::" implements a process-like
448 model. Still crude and subject to change.
449 - $_ and $@ are no longer being localized.
450
451 0.02 Tue Jul 10 01:38:17 CEST 2001
452 - implemented "async" attribute.
453 - $_ and $@ are now localized.
454 - added Coro::Channel.
455 - more testcases, still no docs.
456
457 0.01 Tue Jul 3 02:18:41 CEST 2001
458 - original version; copied from Convert::Scalar.
459