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Revision: 1.211
Committed: Wed Mar 7 13:11:10 2007 UTC (17 years, 2 months ago) by root
Branch: MAIN
Changes since 1.210: +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
6 3.52
7 - add count accessor to Coro::Semaphore.
8
9 3.51 Sun Mar 4 14:18:04 CET 2007
10 - fixed a problem when you weakened references to Coro::State's
11 (patch by Yuval Kogman).
12
13 3.501 Wed Feb 28 12:44:07 CET 2007
14 - rename some global symbols as macosx from hell redefines
15 them without asking.
16
17 3.5 Tue Feb 13 20:22:53 CET 2007
18 - do AnyEvent model detection earlier, avoiding problems
19 caused by first using AnyEvent and later Coro::Event.
20 - implement and document Coro::Event event objects.
21 - fix a potential problem in Coro::Event causing crashes.
22 - initialise PL_comppad when creating a new coroutine,
23 avoids crashes on early coro destruction.
24
25 3.41 Mon Jan 22 19:19:49 CET 2007
26 - readline on Coro::Handle did not support undefined $/,
27 nor did it deliver partial lines on EOF or error.
28 - implement malloc fallback for stack allocation because
29 stupid broken idiotic OSX has a stupid broken
30 idiotic fits-the-whole-os mmap "implementation" and
31 my dick feels longer if Coro is portable even to
32 obsolete platforms.
33
34 3.4 Fri Jan 19 21:52:54 CET 2007
35 - remove t/09_timer.t, as it isn't really testing much
36 but was rather flaky in practise.
37 - async_pool coro would keep arguments and callback alive until
38 it was reused.
39 - cancellation of a coroutine could cause spurious idle calls
40 in cede_notself.
41
42 3.3 Sat Jan 6 03:45:00 CET 2007
43 - implement $coro->on_destroy.
44 - Coro::Event blocking semantics have been changed,
45 documented and - hopefully - improved.
46 - fix nice adding, not subtracting, from priority.
47 - fix ->prio and api_is_ready (patch by Mark Hinds).
48 - fixed an assert ("... == prev__cctx->idle_te")
49 that could errronously trigger.
50 - fix various large and small memleaks.
51 - use a (hopefully) more stable cancel implementation
52 that immediately frees the coroutine data.
53 - cede/cede_notself return a status now.
54 - added Coro::guard function.
55 - added a global coroutine pool for jobs (on my machine,
56 I can create and execute 48k simple coros/s with async,
57 and 128k coros with async_pool).
58 - Coro::AIO now uses the coroutine priority as io priority.
59
60 3.2 Fri Dec 22 05:07:09 CET 2006
61 - improve portability to slightly older perls.
62 - use cleaner coroutine destruction.
63 - simplify configuration for users.
64 - optionally (unrecommended) prefer perl functions over
65 their coro replacements.
66
67 3.11 Tue Dec 5 13:11:24 CET 2006
68 - fixed some bogus assert's, but as perl.h disables assert even
69 without NDEBUG (thank you very much), not too many people should
70 notice (that did include myself). Andreas König noticed, though :)
71 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
72 it. Also noticed by Andreas König :)
73 - save/restore tainted status.
74 - verified to pass the testsuite on my 5.9.5.
75
76 3.1 Mon Dec 4 23:03:40 CET 2006
77 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
78 - incompatible change: transfer flags are now per-state.
79 - give a better error message on deadlock.
80 - document Coro::nready.
81 - enhanced testsuite.
82
83 3.01 Sun Dec 3 23:47:42 CET 2006
84 - forgot to include Coro::Timer.
85
86 3.0 Sun Dec 3 22:57:25 CET 2006
87 - the "FINALLY COMPLETELY STABLE" release (coming soon:
88 the "FAMOUS LAST WORDS" release).
89 - implement a new stack sharing algorithm, which uses a stack
90 pool (size currently hardcoded).
91 - make stack sharing mandatory (it no longer uses a heuristic).
92 - eval/die no longer cause weird problems under heavy use.
93 - Coro::Event could cause livelocks if it was used but
94 no Coro::Event watchers were used.
95 - Coro::Event now uses asynccheck as prepare does not
96 check for changed watchers.
97 - Coro::Event allows multiple waiting coros and will wake up one
98 per event.
99 - Coro::Event should be cleaner and more efficient now.
100 - new utility function Coro::unblock_sub.
101 - document the sad fact that Event is no longer reentrant.
102 - putting a coroutine into the ready queue twice could under
103 some circumstances lead to stack corruption.
104 - minor incompatibility: subclassing Coro::State is supported
105 directly now without going through a _coro_state member.
106 - state/coro switching is much faster now.
107 - very minor optimisations and code/documentation cleanup.
108 - avoid problems due to compiler inlining.
109 - removed timers from Coro::Timer -> use AnyEvent instead.
110 - replaced Coro::idle coroutine by (cleaner) idle handler.
111 - updated to newest libcoro.
112 - implement enhanced support for valgrind.
113 - implement is_ready and return value for ready.
114 - removed Coro::Cont, it was a misnomer (it's generators),
115 and it was somewhat annoying to get it right. Will come back
116 if somebody asks for it :)
117 - many ->wait methods and Coro::Event could return
118 spuriously without the event having happened.
119
120 2.5 Tue Nov 7 12:22:33 CET 2006
121 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
122 use AnyEvent, moved them to Coro/.
123 - added Coro::LWP which contains all the uglyness required to
124 make LWP non-blocking.
125 - should work with perl 5.9.x now (Andreas König made me do it).
126 - fixed another bug in Coro::Select when the timeout was undef.
127 - reuse PL_start_env for all coros, saves some memory per coroutine.
128 - manage PL_top_env differently, hopefully to avoid panic: top_env.
129 - timeout argument was not properly used in Coro::Socket.
130 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
131 - emulate undocumented(!) functionality of IO::Socket required
132 by LWP(!!).
133 - updated eg/lwp to work with newer lwp's.
134 - remove "FATAL: uncaught exception" prefix. Coroutines that die
135 kill the whole process, just as exceptions in the main "coroutine"
136 did already.
137
138 2.1 Wed Nov 1 23:01:13 CET 2006
139 - fix a long-standing bug in Coro::Select where select with
140 zero timeout would instead change the current default filehandle.
141 - use a simpler and hopefully more robust way to clone padlists
142 (uses less memory and a perl function instead of our own).
143 - coro can now create a stack guard area on many architectures.
144 - Coro::AIO properly reexports additional functions from IO::AIO.
145 - updated libcoro with a workaround for OS X,
146 pach and testing by Michael Schwern.
147
148 2.0 Tue Oct 24 05:47:17 CEST 2006
149 - support additional aio requests in Coro::AIO.
150
151 1.9 (never properly released due to a glitch)
152
153 1.8 Thu Feb 2 00:59:06 CET 2006
154 - applied suggested patch by SAMV to avoid problems during stupid
155 mark & sweep gc run.
156 - applied patch by Scott Walters for 5.9.3 compatibility.
157
158 1.7 Tue Dec 27 01:41:58 CET 2005
159 - added Coro::AIO, a thin wrapper around IO::AIO.
160 - improved Makefile.PL explanations.
161
162 1.6 Mon Dec 12 21:30:05 CET 2005
163 - additionally save PM_curpm might fix as-of-yet
164 unseen problems with regex matches being attributed to the
165 wrong package.
166 - add t/10_bugs.t, which currently checks against imho broken
167 perls that use 0.26MB of stack space per Perl_magic_get
168 invocation (newer linuxes) as opposed to the 0.0002MB perl
169 normally uses.
170 - make stacksize configurable for the ultimate debian experience.
171
172 1.51 Mon Dec 12 18:48:36 CET 2005
173 - remove debugging warn() accidentally left in Coro::Select.
174
175 1.5 Tue Nov 29 13:32:44 CET 2005
176 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
177 - fix Coro::Select 'select'.
178 - strict'ify some modules.
179 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
180 - use XSLoader in selected modules.
181 - remove some 5.6 compatibility cruft.
182
183 1.4 Tue Sep 6 00:11:05 CEST 2005
184 - libcoro did not take into account the trampoline on amd64,
185 when 'l'inux method was used.
186
187 1.31 Tue Aug 30 23:31:33 CEST 2005
188 - some portability fixes/workarounds.
189
190 1.3 Sat Aug 20 03:08:56 CEST 2005
191 - no code changes. module seems to work fine.
192 - improve Coro::State docs, remove reference to nonexisting
193 Coro::State::flush method.
194 - no longer autodetect windows, present it as an option instead.
195
196 1.2 Mon May 16 02:00:55 CEST 2005
197 - included libcoro.c earlier in State.xs, might improve portability.
198 - use a faster and possibly more stable Coro::Cont implementation.
199 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
200 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
201 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
202
203 1.11 Thu Mar 3 18:00:52 CET 2005
204 - change of contact address.
205
206 1.1 Tue Feb 22 20:51:16 CET 2005
207 - support [l]inux method on amd64.
208 - allow some context switches while compiling/eval'ing.
209
210 1.0 Tue Aug 10 03:47:27 CEST 2004
211 - Event 0.89 fixes the bug again.
212 - fix the remaining(??) memleak. I didn't free the cache-AV for
213 padlists, so one AV per created anon-sub leaked.
214
215 0.97 Fri May 14 15:23:32 CEST 2004
216 - remove stupid gcc extension that was an experiment only anyway.
217
218 0.96 Thu May 13 18:09:29 CEST 2004
219 - tell people if they have yet another broken Event variant.
220 - made Coro to work _better_ with threads (it seems that, as long
221 as you use Coros in one thread only everything will work fine.
222 Looking at the perl source the problem might be missing locking
223 between Coro and some perl internal routines. That's not easily
224 fixable).
225 - (hopefully) got rid of the static xnext inside transfer.
226
227 0.95 Sun Feb 15 03:20:28 CET 2004
228 - removed Coro::State::flush, implemented a new and much
229 faster caching mechanism by attaching magic to the CV.
230 - a memleak with (real) closures remains.
231 - dramatically reduced size of stacks to 65536 (linux/x86), after
232 observing that even myhttpd never had more than a kilobyte
233 of stack in use (stack is still only physically allocated in
234 pagesize increments for systems suporting mmap).
235 - fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
236 - fix for threaded perl.
237
238 0.9 Sun Nov 23 04:32:39 CET 2003
239 - fix a few very hard to track down but (of course) stupid
240 memory leaks.
241 - stringify version number to avoid locale problems :(.
242 - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
243 hopefully ignoring it "just works".
244
245 0.8 Wed Nov 5 19:38:40 CET 2003
246 - port to perl5.005_03, but only 5.8.x+ is supported!
247 - honor LocalAddr even without LocalPort in Coro::Socket.
248
249 0.7 Tue May 27 03:12:38 CEST 2003
250 - the version jump indicates some level of testing, not gobs
251 of new features.
252 - uh... I found the prompt function in ExtUtils::MakeMaker.
253 Highly correct stuff, that is...
254 - fixed(?) a bug with die's in coroutines causing "panic: top_env".
255 the fix is not well understood by the author, so beware :(.
256
257 0.652 Thu May 8 02:54:46 CEST 2003
258 - Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
259 cause version 4 doesn't have ucontext.
260 - Benjamin Reed reported that setjmp works fine on darwin,
261 so preselect it.
262
263 0.651 Sat Mar 29 15:00:23 CET 2003
264 - fix a bug in Coro::Handle where some bytes could get lost
265 on reading, reported by jason@nichego.net.
266
267 0.65 Sun Mar 23 00:08:26 CET 2003
268 - added a README.linux-glibc.
269 - new module Coro::Select.
270 - also save/restore PL_comppad, fixes segfaults with 5.8.1.
271 (I never claimed that I know what I am doing ;).
272 - set default to setjmp/longjmp on non-x86-linux.
273
274 0.6 Thu Nov 21 11:09:06 CET 2002
275 - made lazy context switching the default.
276 - fixed the bug where SemaphoreSet::guard
277 was the same as timed_guard and timed_guard was missing.
278 - fix a memleak in Coro::Timer.
279 - reclassified context sharing as not experimental.
280
281 0.534 Sun Apr 14 03:05:12 CEST 2002
282 - fixed backspace => tab in header parsing (myhttpd).
283 - added eg/readline, for elmex.
284 - Coro::Event now calls ->start on first call instead of
285 ->again, which created wrong timeouts for the first ->next.
286 - fixed a bug where Coro::Socket returned a closed socket instead
287 of nothing on ECONNREFUSED and similar error conditions.
288
289 0.533 Mon Feb 18 18:49:40 CET 2002
290 - adapt to finally working Event-0.85.
291 - fixed buggy event initialization (trapped under windows, but how
292 could it possibly have worked anywhere?)
293
294 0.532 Wed Jan 16 02:45:32 CET 2002
295 - removed the reference to pp_entersub, might work on
296 (some) win32 perls now (testsuite works under cygwin,
297 without Event, which freezes).
298
299 0.531 Mon Dec 10 22:18:44 CET 2001
300 - Fixed a bug in SemaphoreSet::timed_down.
301
302 0.53 Tue Nov 27 21:11:13 CET 2001
303 - some tests for Event.
304 - slightly different internal architecture to get refcnt into the object
305 and not the reference. might fix a few bugs, certainly did introduce
306 new ones.
307 - Coro::Timer (independent of Event).
308 - new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
309
310 0.52 Tue Nov 6 21:36:18 CET 2001
311 - ported to cygwin (trivial).
312 patch by Gerrit P. Haase <gp@familiehaase.de>.
313 - small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
314
315 0.51 Thu Nov 1 20:39:01 CET 2001
316 - terminate/cancel now work properly (otherwise termination
317 could cause a "next coroutine is not and contains not..."
318 error.
319 - added Coro::Socket::shutdown.
320 - Coro::Event::loop no is the same as Event::loop.
321 - implemented terminate with args + join.
322
323 0.5 Fri Sep 28 16:15:35 CEST 2001
324 - fixed "print" on a Coro::Handle. The print method worked.
325 - small tweaks (seem to reduce memory consumption a lot)
326 in various modules.
327 - splendid use of "no warnings" scattered throughout.
328 - added Coro::Handle::rbuf, fixed Coro::Handle::fh.
329
330 0.49 Sun Sep 16 02:42:45 CEST 2001
331 - changed some method calls to function calls for speed
332 inside Coro::Handle.
333 - make Coro::Handle use an array instead of a hash for
334 speed reasons.
335 - IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
336 sjlj and ucontext should now work.
337 - IRIX-specific port for libcoro.
338 - swapped order of accept results to match IO::Socket.
339 - changed getsock/peername to sock/peername to match IO::Socket.
340 - fixed a bug that caused segfault when returning to main task
341 under some circumstances.
342 - other bugfixes.
343
344 0.45 Sun Sep 2 02:54:01 CEST 2001
345 - new method Coro::Handle::timeout.
346 - corrected speling of set...name to get...name in Coro::Socket.
347 - Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
348 - Coro::Handle now supports fileno and FILENO.
349 - added eg/myhttpd, a web server.
350 - Coro::Socket now accepts numeric ports as well as "port(number)"
351 syntax.
352 - moved some scheduling primitives into xs code. more to come.
353 - new simple priority system.
354 - implemented Coro::Event using XS, almost four times faster!
355 - small memory corruption problem fixed (boy that was difficult).
356
357 0.13 Wed Aug 8 16:53:07 CEST 2001
358 - new method Coro::Handle::readline.
359 - added eg/lwp and Coro::Handle::autoflush, to make LWP work.
360 (see eg/lwp on how to make LWP non-blocking).
361 - renamed Coro::Socket::new_inet to new.
362 - added Coro::Util, some utility functions.
363 - die/eval now works better (still get annoying (but true ;)
364 "Callback called exit" messages).
365 - Coro::Handle now supports timeout, and Coro::Socket Timeout.
366 - much better Coro::Socket support.
367
368 0.12 Fri Jul 27 04:19:01 CEST 2001
369 - do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
370 - very experimental stack sharing algorithm. not 100% safe but
371 should work well in practise ;)
372 - added Coro::RWLock.
373 - Coro::Specific now works.
374
375 0.11 Tue Jul 24 22:49:21 CEST 2001
376 - added specialized hack for newer and older linux versions (fast).
377 - renamed Coro::Event::IO to Coro::Handle.
378 - new module Coro::Socket.
379
380 0.1 Tue Jul 24 01:47:53 CEST 2001
381 - release candidate 3. A rather new internal structure :(
382 - the great renaming: Damian Conway gave me a suitable replacement
383 for yield.
384 - added Coro/libcoro, a portable coroutine implementation for C
385 (not even perl-dependent!!!), which can be used by Coro::State.
386 - renamed SAVE_DEFSV (on xs-level only) to avoid symbol clash in
387 perl-5.6.
388 - new function Coro::Event::idle.
389 - the idle process is now overriden
390 by default in Coro::Event.
391 - Coro::Channel now enforces the size.
392 - canceling events now works in all cases.
393 - Coro state now include $_ and $@.
394 - yet another bug workaround that I do not really understand :(
395 - new module Coro::Event::IO (very undocumented) to do
396 non-blocking i/o.
397 - performance tuning.
398
399 0.08 Thu Jul 19 06:13:25 CEST 2001
400 - release candidate 2 (new functionality).
401 - add Coro::State::flush function.
402 - transfer now supports a flags value (mostly for speed ATM).
403 - might compile and work in the presence of threads now.
404 - continuations have a saner syntax.
405 - no more memleaks.
406
407 0.07 Tue Jul 17 17:40:18 CEST 2001
408 - release candidate 1 ;)
409 - slightly nicer code.
410 - fixed a scheduling bug in Coro::Event.
411
412 0.06 Tue Jul 17 04:23:24 CEST 2001
413 - ok, I found the showstopper - the same sub must not be
414 re-entered in two different coroutines, otherwise => crash. I
415 see no easy solution to this problem, except by walking the call
416 chaing and saving/restoring the cv's, which is what I do now.
417 - memory leaks still latent, especially at thread termination.
418 - Coro::Event now works (haha).
419
420 0.05 Sun Jul 15 17:32:20 CEST 2001
421 - fixed a few issues in Coro::Event.
422 - I forgot to include Coro::Event in 0.04 :(:(:(
423
424 0.04 Sun Jul 15 05:24:59 CEST 2001
425 - @_ is now properly localized.
426 - Coro::State is now easier subclassable.
427 - Coro::Cont now coroutine-aware.
428 - Coro::Specific is a low-overhead module to create
429 coroutine-specific vars.
430 - Coro::Event provides a simple interface to Event.
431
432 0.03 Fri Jul 13 14:51:52 CEST 2001
433 - transfer() now implemented in XS (beware).
434 - new module Coro::Cont for really faked continuations.
435 - big internal architecture changes: Coro::State is now
436 really low-level and can thus be used to implement other
437 interesting things, While "Coro::" implements a process-like
438 model. Still crude and subject to change.
439 - $_ and $@ are no longer being localized.
440
441 0.02 Tue Jul 10 01:38:17 CEST 2001
442 - implemented "async" attribute.
443 - $_ and $@ are now localized.
444 - added Coro::Channel.
445 - more testcases, still no docs.
446
447 0.01 Tue Jul 3 02:18:41 CEST 2001
448 - original version; copied from Convert::Scalar.
449