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Revision: 1.213
Committed: Sat Mar 17 19:51:57 2007 UTC (17 years, 2 months ago) by root
Branch: MAIN
Changes since 1.212: +4 -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
6 3.52
7 - add count accessor to Coro::Semaphore.
8 - add Coro::State::cctx_stacksize.
9 - just for the fun of it, do not rely on implicit context,
10 which can dramatically improve performance, but people
11 using windows-process-emulation perls do not care much about
12 performance.
13
14 3.51 Sun Mar 4 14:18:04 CET 2007
15 - fixed a problem when you weakened references to Coro::State's
16 (patch by Yuval Kogman).
17
18 3.501 Wed Feb 28 12:44:07 CET 2007
19 - rename some global symbols as macosx from hell redefines
20 them without asking.
21
22 3.5 Tue Feb 13 20:22:53 CET 2007
23 - do AnyEvent model detection earlier, avoiding problems
24 caused by first using AnyEvent and later Coro::Event.
25 - implement and document Coro::Event event objects.
26 - fix a potential problem in Coro::Event causing crashes.
27 - initialise PL_comppad when creating a new coroutine,
28 avoids crashes on early coro destruction.
29
30 3.41 Mon Jan 22 19:19:49 CET 2007
31 - readline on Coro::Handle did not support undefined $/,
32 nor did it deliver partial lines on EOF or error.
33 - implement malloc fallback for stack allocation because
34 stupid broken idiotic OSX has a stupid broken
35 idiotic fits-the-whole-os mmap "implementation" and
36 my dick feels longer if Coro is portable even to
37 obsolete platforms.
38
39 3.4 Fri Jan 19 21:52:54 CET 2007
40 - remove t/09_timer.t, as it isn't really testing much
41 but was rather flaky in practise.
42 - async_pool coro would keep arguments and callback alive until
43 it was reused.
44 - cancellation of a coroutine could cause spurious idle calls
45 in cede_notself.
46
47 3.3 Sat Jan 6 03:45:00 CET 2007
48 - implement $coro->on_destroy.
49 - Coro::Event blocking semantics have been changed,
50 documented and - hopefully - improved.
51 - fix nice adding, not subtracting, from priority.
52 - fix ->prio and api_is_ready (patch by Mark Hinds).
53 - fixed an assert ("... == prev__cctx->idle_te")
54 that could errronously trigger.
55 - fix various large and small memleaks.
56 - use a (hopefully) more stable cancel implementation
57 that immediately frees the coroutine data.
58 - cede/cede_notself return a status now.
59 - added Coro::guard function.
60 - added a global coroutine pool for jobs (on my machine,
61 I can create and execute 48k simple coros/s with async,
62 and 128k coros with async_pool).
63 - Coro::AIO now uses the coroutine priority as io priority.
64
65 3.2 Fri Dec 22 05:07:09 CET 2006
66 - improve portability to slightly older perls.
67 - use cleaner coroutine destruction.
68 - simplify configuration for users.
69 - optionally (unrecommended) prefer perl functions over
70 their coro replacements.
71
72 3.11 Tue Dec 5 13:11:24 CET 2006
73 - fixed some bogus assert's, but as perl.h disables assert even
74 without NDEBUG (thank you very much), not too many people should
75 notice (that did include myself). Andreas König noticed, though :)
76 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
77 it. Also noticed by Andreas König :)
78 - save/restore tainted status.
79 - verified to pass the testsuite on my 5.9.5.
80
81 3.1 Mon Dec 4 23:03:40 CET 2006
82 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
83 - incompatible change: transfer flags are now per-state.
84 - give a better error message on deadlock.
85 - document Coro::nready.
86 - enhanced testsuite.
87
88 3.01 Sun Dec 3 23:47:42 CET 2006
89 - forgot to include Coro::Timer.
90
91 3.0 Sun Dec 3 22:57:25 CET 2006
92 - the "FINALLY COMPLETELY STABLE" release (coming soon:
93 the "FAMOUS LAST WORDS" release).
94 - implement a new stack sharing algorithm, which uses a stack
95 pool (size currently hardcoded).
96 - make stack sharing mandatory (it no longer uses a heuristic).
97 - eval/die no longer cause weird problems under heavy use.
98 - Coro::Event could cause livelocks if it was used but
99 no Coro::Event watchers were used.
100 - Coro::Event now uses asynccheck as prepare does not
101 check for changed watchers.
102 - Coro::Event allows multiple waiting coros and will wake up one
103 per event.
104 - Coro::Event should be cleaner and more efficient now.
105 - new utility function Coro::unblock_sub.
106 - document the sad fact that Event is no longer reentrant.
107 - putting a coroutine into the ready queue twice could under
108 some circumstances lead to stack corruption.
109 - minor incompatibility: subclassing Coro::State is supported
110 directly now without going through a _coro_state member.
111 - state/coro switching is much faster now.
112 - very minor optimisations and code/documentation cleanup.
113 - avoid problems due to compiler inlining.
114 - removed timers from Coro::Timer -> use AnyEvent instead.
115 - replaced Coro::idle coroutine by (cleaner) idle handler.
116 - updated to newest libcoro.
117 - implement enhanced support for valgrind.
118 - implement is_ready and return value for ready.
119 - removed Coro::Cont, it was a misnomer (it's generators),
120 and it was somewhat annoying to get it right. Will come back
121 if somebody asks for it :)
122 - many ->wait methods and Coro::Event could return
123 spuriously without the event having happened.
124
125 2.5 Tue Nov 7 12:22:33 CET 2006
126 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
127 use AnyEvent, moved them to Coro/.
128 - added Coro::LWP which contains all the uglyness required to
129 make LWP non-blocking.
130 - should work with perl 5.9.x now (Andreas König made me do it).
131 - fixed another bug in Coro::Select when the timeout was undef.
132 - reuse PL_start_env for all coros, saves some memory per coroutine.
133 - manage PL_top_env differently, hopefully to avoid panic: top_env.
134 - timeout argument was not properly used in Coro::Socket.
135 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
136 - emulate undocumented(!) functionality of IO::Socket required
137 by LWP(!!).
138 - updated eg/lwp to work with newer lwp's.
139 - remove "FATAL: uncaught exception" prefix. Coroutines that die
140 kill the whole process, just as exceptions in the main "coroutine"
141 did already.
142
143 2.1 Wed Nov 1 23:01:13 CET 2006
144 - fix a long-standing bug in Coro::Select where select with
145 zero timeout would instead change the current default filehandle.
146 - use a simpler and hopefully more robust way to clone padlists
147 (uses less memory and a perl function instead of our own).
148 - coro can now create a stack guard area on many architectures.
149 - Coro::AIO properly reexports additional functions from IO::AIO.
150 - updated libcoro with a workaround for OS X,
151 pach and testing by Michael Schwern.
152
153 2.0 Tue Oct 24 05:47:17 CEST 2006
154 - support additional aio requests in Coro::AIO.
155
156 1.9 (never properly released due to a glitch)
157
158 1.8 Thu Feb 2 00:59:06 CET 2006
159 - applied suggested patch by SAMV to avoid problems during stupid
160 mark & sweep gc run.
161 - applied patch by Scott Walters for 5.9.3 compatibility.
162
163 1.7 Tue Dec 27 01:41:58 CET 2005
164 - added Coro::AIO, a thin wrapper around IO::AIO.
165 - improved Makefile.PL explanations.
166
167 1.6 Mon Dec 12 21:30:05 CET 2005
168 - additionally save PM_curpm might fix as-of-yet
169 unseen problems with regex matches being attributed to the
170 wrong package.
171 - add t/10_bugs.t, which currently checks against imho broken
172 perls that use 0.26MB of stack space per Perl_magic_get
173 invocation (newer linuxes) as opposed to the 0.0002MB perl
174 normally uses.
175 - make stacksize configurable for the ultimate debian experience.
176
177 1.51 Mon Dec 12 18:48:36 CET 2005
178 - remove debugging warn() accidentally left in Coro::Select.
179
180 1.5 Tue Nov 29 13:32:44 CET 2005
181 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
182 - fix Coro::Select 'select'.
183 - strict'ify some modules.
184 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
185 - use XSLoader in selected modules.
186 - remove some 5.6 compatibility cruft.
187
188 1.4 Tue Sep 6 00:11:05 CEST 2005
189 - libcoro did not take into account the trampoline on amd64,
190 when 'l'inux method was used.
191
192 1.31 Tue Aug 30 23:31:33 CEST 2005
193 - some portability fixes/workarounds.
194
195 1.3 Sat Aug 20 03:08:56 CEST 2005
196 - no code changes. module seems to work fine.
197 - improve Coro::State docs, remove reference to nonexisting
198 Coro::State::flush method.
199 - no longer autodetect windows, present it as an option instead.
200
201 1.2 Mon May 16 02:00:55 CEST 2005
202 - included libcoro.c earlier in State.xs, might improve portability.
203 - use a faster and possibly more stable Coro::Cont implementation.
204 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
205 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
206 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
207
208 1.11 Thu Mar 3 18:00:52 CET 2005
209 - change of contact address.
210
211 1.1 Tue Feb 22 20:51:16 CET 2005
212 - support [l]inux method on amd64.
213 - allow some context switches while compiling/eval'ing.
214
215 1.0 Tue Aug 10 03:47:27 CEST 2004
216 - Event 0.89 fixes the bug again.
217 - fix the remaining(??) memleak. I didn't free the cache-AV for
218 padlists, so one AV per created anon-sub leaked.
219
220 0.97 Fri May 14 15:23:32 CEST 2004
221 - remove stupid gcc extension that was an experiment only anyway.
222
223 0.96 Thu May 13 18:09:29 CEST 2004
224 - tell people if they have yet another broken Event variant.
225 - made Coro to work _better_ with threads (it seems that, as long
226 as you use Coros in one thread only everything will work fine.
227 Looking at the perl source the problem might be missing locking
228 between Coro and some perl internal routines. That's not easily
229 fixable).
230 - (hopefully) got rid of the static xnext inside transfer.
231
232 0.95 Sun Feb 15 03:20:28 CET 2004
233 - removed Coro::State::flush, implemented a new and much
234 faster caching mechanism by attaching magic to the CV.
235 - a memleak with (real) closures remains.
236 - dramatically reduced size of stacks to 65536 (linux/x86), after
237 observing that even myhttpd never had more than a kilobyte
238 of stack in use (stack is still only physically allocated in
239 pagesize increments for systems suporting mmap).
240 - fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
241 - fix for threaded perl.
242
243 0.9 Sun Nov 23 04:32:39 CET 2003
244 - fix a few very hard to track down but (of course) stupid
245 memory leaks.
246 - stringify version number to avoid locale problems :(.
247 - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
248 hopefully ignoring it "just works".
249
250 0.8 Wed Nov 5 19:38:40 CET 2003
251 - port to perl5.005_03, but only 5.8.x+ is supported!
252 - honor LocalAddr even without LocalPort in Coro::Socket.
253
254 0.7 Tue May 27 03:12:38 CEST 2003
255 - the version jump indicates some level of testing, not gobs
256 of new features.
257 - uh... I found the prompt function in ExtUtils::MakeMaker.
258 Highly correct stuff, that is...
259 - fixed(?) a bug with die's in coroutines causing "panic: top_env".
260 the fix is not well understood by the author, so beware :(.
261
262 0.652 Thu May 8 02:54:46 CEST 2003
263 - Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
264 cause version 4 doesn't have ucontext.
265 - Benjamin Reed reported that setjmp works fine on darwin,
266 so preselect it.
267
268 0.651 Sat Mar 29 15:00:23 CET 2003
269 - fix a bug in Coro::Handle where some bytes could get lost
270 on reading, reported by jason@nichego.net.
271
272 0.65 Sun Mar 23 00:08:26 CET 2003
273 - added a README.linux-glibc.
274 - new module Coro::Select.
275 - also save/restore PL_comppad, fixes segfaults with 5.8.1.
276 (I never claimed that I know what I am doing ;).
277 - set default to setjmp/longjmp on non-x86-linux.
278
279 0.6 Thu Nov 21 11:09:06 CET 2002
280 - made lazy context switching the default.
281 - fixed the bug where SemaphoreSet::guard
282 was the same as timed_guard and timed_guard was missing.
283 - fix a memleak in Coro::Timer.
284 - reclassified context sharing as not experimental.
285
286 0.534 Sun Apr 14 03:05:12 CEST 2002
287 - fixed backspace => tab in header parsing (myhttpd).
288 - added eg/readline, for elmex.
289 - Coro::Event now calls ->start on first call instead of
290 ->again, which created wrong timeouts for the first ->next.
291 - fixed a bug where Coro::Socket returned a closed socket instead
292 of nothing on ECONNREFUSED and similar error conditions.
293
294 0.533 Mon Feb 18 18:49:40 CET 2002
295 - adapt to finally working Event-0.85.
296 - fixed buggy event initialization (trapped under windows, but how
297 could it possibly have worked anywhere?)
298
299 0.532 Wed Jan 16 02:45:32 CET 2002
300 - removed the reference to pp_entersub, might work on
301 (some) win32 perls now (testsuite works under cygwin,
302 without Event, which freezes).
303
304 0.531 Mon Dec 10 22:18:44 CET 2001
305 - Fixed a bug in SemaphoreSet::timed_down.
306
307 0.53 Tue Nov 27 21:11:13 CET 2001
308 - some tests for Event.
309 - slightly different internal architecture to get refcnt into the object
310 and not the reference. might fix a few bugs, certainly did introduce
311 new ones.
312 - Coro::Timer (independent of Event).
313 - new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
314
315 0.52 Tue Nov 6 21:36:18 CET 2001
316 - ported to cygwin (trivial).
317 patch by Gerrit P. Haase <gp@familiehaase.de>.
318 - small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
319
320 0.51 Thu Nov 1 20:39:01 CET 2001
321 - terminate/cancel now work properly (otherwise termination
322 could cause a "next coroutine is not and contains not..."
323 error.
324 - added Coro::Socket::shutdown.
325 - Coro::Event::loop no is the same as Event::loop.
326 - implemented terminate with args + join.
327
328 0.5 Fri Sep 28 16:15:35 CEST 2001
329 - fixed "print" on a Coro::Handle. The print method worked.
330 - small tweaks (seem to reduce memory consumption a lot)
331 in various modules.
332 - splendid use of "no warnings" scattered throughout.
333 - added Coro::Handle::rbuf, fixed Coro::Handle::fh.
334
335 0.49 Sun Sep 16 02:42:45 CEST 2001
336 - changed some method calls to function calls for speed
337 inside Coro::Handle.
338 - make Coro::Handle use an array instead of a hash for
339 speed reasons.
340 - IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
341 sjlj and ucontext should now work.
342 - IRIX-specific port for libcoro.
343 - swapped order of accept results to match IO::Socket.
344 - changed getsock/peername to sock/peername to match IO::Socket.
345 - fixed a bug that caused segfault when returning to main task
346 under some circumstances.
347 - other bugfixes.
348
349 0.45 Sun Sep 2 02:54:01 CEST 2001
350 - new method Coro::Handle::timeout.
351 - corrected speling of set...name to get...name in Coro::Socket.
352 - Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
353 - Coro::Handle now supports fileno and FILENO.
354 - added eg/myhttpd, a web server.
355 - Coro::Socket now accepts numeric ports as well as "port(number)"
356 syntax.
357 - moved some scheduling primitives into xs code. more to come.
358 - new simple priority system.
359 - implemented Coro::Event using XS, almost four times faster!
360 - small memory corruption problem fixed (boy that was difficult).
361
362 0.13 Wed Aug 8 16:53:07 CEST 2001
363 - new method Coro::Handle::readline.
364 - added eg/lwp and Coro::Handle::autoflush, to make LWP work.
365 (see eg/lwp on how to make LWP non-blocking).
366 - renamed Coro::Socket::new_inet to new.
367 - added Coro::Util, some utility functions.
368 - die/eval now works better (still get annoying (but true ;)
369 "Callback called exit" messages).
370 - Coro::Handle now supports timeout, and Coro::Socket Timeout.
371 - much better Coro::Socket support.
372
373 0.12 Fri Jul 27 04:19:01 CEST 2001
374 - do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
375 - very experimental stack sharing algorithm. not 100% safe but
376 should work well in practise ;)
377 - added Coro::RWLock.
378 - Coro::Specific now works.
379
380 0.11 Tue Jul 24 22:49:21 CEST 2001
381 - added specialized hack for newer and older linux versions (fast).
382 - renamed Coro::Event::IO to Coro::Handle.
383 - new module Coro::Socket.
384
385 0.1 Tue Jul 24 01:47:53 CEST 2001
386 - release candidate 3. A rather new internal structure :(
387 - the great renaming: Damian Conway gave me a suitable replacement
388 for yield.
389 - added Coro/libcoro, a portable coroutine implementation for C
390 (not even perl-dependent!!!), which can be used by Coro::State.
391 - renamed SAVE_DEFSV (on xs-level only) to avoid symbol clash in
392 perl-5.6.
393 - new function Coro::Event::idle.
394 - the idle process is now overriden
395 by default in Coro::Event.
396 - Coro::Channel now enforces the size.
397 - canceling events now works in all cases.
398 - Coro state now include $_ and $@.
399 - yet another bug workaround that I do not really understand :(
400 - new module Coro::Event::IO (very undocumented) to do
401 non-blocking i/o.
402 - performance tuning.
403
404 0.08 Thu Jul 19 06:13:25 CEST 2001
405 - release candidate 2 (new functionality).
406 - add Coro::State::flush function.
407 - transfer now supports a flags value (mostly for speed ATM).
408 - might compile and work in the presence of threads now.
409 - continuations have a saner syntax.
410 - no more memleaks.
411
412 0.07 Tue Jul 17 17:40:18 CEST 2001
413 - release candidate 1 ;)
414 - slightly nicer code.
415 - fixed a scheduling bug in Coro::Event.
416
417 0.06 Tue Jul 17 04:23:24 CEST 2001
418 - ok, I found the showstopper - the same sub must not be
419 re-entered in two different coroutines, otherwise => crash. I
420 see no easy solution to this problem, except by walking the call
421 chaing and saving/restoring the cv's, which is what I do now.
422 - memory leaks still latent, especially at thread termination.
423 - Coro::Event now works (haha).
424
425 0.05 Sun Jul 15 17:32:20 CEST 2001
426 - fixed a few issues in Coro::Event.
427 - I forgot to include Coro::Event in 0.04 :(:(:(
428
429 0.04 Sun Jul 15 05:24:59 CEST 2001
430 - @_ is now properly localized.
431 - Coro::State is now easier subclassable.
432 - Coro::Cont now coroutine-aware.
433 - Coro::Specific is a low-overhead module to create
434 coroutine-specific vars.
435 - Coro::Event provides a simple interface to Event.
436
437 0.03 Fri Jul 13 14:51:52 CEST 2001
438 - transfer() now implemented in XS (beware).
439 - new module Coro::Cont for really faked continuations.
440 - big internal architecture changes: Coro::State is now
441 really low-level and can thus be used to implement other
442 interesting things, While "Coro::" implements a process-like
443 model. Still crude and subject to change.
444 - $_ and $@ are no longer being localized.
445
446 0.02 Tue Jul 10 01:38:17 CEST 2001
447 - implemented "async" attribute.
448 - $_ and $@ are now localized.
449 - added Coro::Channel.
450 - more testcases, still no docs.
451
452 0.01 Tue Jul 3 02:18:41 CEST 2001
453 - original version; copied from Convert::Scalar.
454