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Revision: 1.214
Committed: Mon Mar 19 14:14:23 2007 UTC (17 years, 2 months ago) by root
Branch: MAIN
Changes since 1.213: +2 -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 - finally move socket-operations from Coro::Socket to Coro::Handle
14 to be able to unblock foreign sockets.
15
16 3.51 Sun Mar 4 14:18:04 CET 2007
17 - fixed a problem when you weakened references to Coro::State's
18 (patch by Yuval Kogman).
19
20 3.501 Wed Feb 28 12:44:07 CET 2007
21 - rename some global symbols as macosx from hell redefines
22 them without asking.
23
24 3.5 Tue Feb 13 20:22:53 CET 2007
25 - do AnyEvent model detection earlier, avoiding problems
26 caused by first using AnyEvent and later Coro::Event.
27 - implement and document Coro::Event event objects.
28 - fix a potential problem in Coro::Event causing crashes.
29 - initialise PL_comppad when creating a new coroutine,
30 avoids crashes on early coro destruction.
31
32 3.41 Mon Jan 22 19:19:49 CET 2007
33 - readline on Coro::Handle did not support undefined $/,
34 nor did it deliver partial lines on EOF or error.
35 - implement malloc fallback for stack allocation because
36 stupid broken idiotic OSX has a stupid broken
37 idiotic fits-the-whole-os mmap "implementation" and
38 my dick feels longer if Coro is portable even to
39 obsolete platforms.
40
41 3.4 Fri Jan 19 21:52:54 CET 2007
42 - remove t/09_timer.t, as it isn't really testing much
43 but was rather flaky in practise.
44 - async_pool coro would keep arguments and callback alive until
45 it was reused.
46 - cancellation of a coroutine could cause spurious idle calls
47 in cede_notself.
48
49 3.3 Sat Jan 6 03:45:00 CET 2007
50 - implement $coro->on_destroy.
51 - Coro::Event blocking semantics have been changed,
52 documented and - hopefully - improved.
53 - fix nice adding, not subtracting, from priority.
54 - fix ->prio and api_is_ready (patch by Mark Hinds).
55 - fixed an assert ("... == prev__cctx->idle_te")
56 that could errronously trigger.
57 - fix various large and small memleaks.
58 - use a (hopefully) more stable cancel implementation
59 that immediately frees the coroutine data.
60 - cede/cede_notself return a status now.
61 - added Coro::guard function.
62 - added a global coroutine pool for jobs (on my machine,
63 I can create and execute 48k simple coros/s with async,
64 and 128k coros with async_pool).
65 - Coro::AIO now uses the coroutine priority as io priority.
66
67 3.2 Fri Dec 22 05:07:09 CET 2006
68 - improve portability to slightly older perls.
69 - use cleaner coroutine destruction.
70 - simplify configuration for users.
71 - optionally (unrecommended) prefer perl functions over
72 their coro replacements.
73
74 3.11 Tue Dec 5 13:11:24 CET 2006
75 - fixed some bogus assert's, but as perl.h disables assert even
76 without NDEBUG (thank you very much), not too many people should
77 notice (that did include myself). Andreas König noticed, though :)
78 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
79 it. Also noticed by Andreas König :)
80 - save/restore tainted status.
81 - verified to pass the testsuite on my 5.9.5.
82
83 3.1 Mon Dec 4 23:03:40 CET 2006
84 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
85 - incompatible change: transfer flags are now per-state.
86 - give a better error message on deadlock.
87 - document Coro::nready.
88 - enhanced testsuite.
89
90 3.01 Sun Dec 3 23:47:42 CET 2006
91 - forgot to include Coro::Timer.
92
93 3.0 Sun Dec 3 22:57:25 CET 2006
94 - the "FINALLY COMPLETELY STABLE" release (coming soon:
95 the "FAMOUS LAST WORDS" release).
96 - implement a new stack sharing algorithm, which uses a stack
97 pool (size currently hardcoded).
98 - make stack sharing mandatory (it no longer uses a heuristic).
99 - eval/die no longer cause weird problems under heavy use.
100 - Coro::Event could cause livelocks if it was used but
101 no Coro::Event watchers were used.
102 - Coro::Event now uses asynccheck as prepare does not
103 check for changed watchers.
104 - Coro::Event allows multiple waiting coros and will wake up one
105 per event.
106 - Coro::Event should be cleaner and more efficient now.
107 - new utility function Coro::unblock_sub.
108 - document the sad fact that Event is no longer reentrant.
109 - putting a coroutine into the ready queue twice could under
110 some circumstances lead to stack corruption.
111 - minor incompatibility: subclassing Coro::State is supported
112 directly now without going through a _coro_state member.
113 - state/coro switching is much faster now.
114 - very minor optimisations and code/documentation cleanup.
115 - avoid problems due to compiler inlining.
116 - removed timers from Coro::Timer -> use AnyEvent instead.
117 - replaced Coro::idle coroutine by (cleaner) idle handler.
118 - updated to newest libcoro.
119 - implement enhanced support for valgrind.
120 - implement is_ready and return value for ready.
121 - removed Coro::Cont, it was a misnomer (it's generators),
122 and it was somewhat annoying to get it right. Will come back
123 if somebody asks for it :)
124 - many ->wait methods and Coro::Event could return
125 spuriously without the event having happened.
126
127 2.5 Tue Nov 7 12:22:33 CET 2006
128 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
129 use AnyEvent, moved them to Coro/.
130 - added Coro::LWP which contains all the uglyness required to
131 make LWP non-blocking.
132 - should work with perl 5.9.x now (Andreas König made me do it).
133 - fixed another bug in Coro::Select when the timeout was undef.
134 - reuse PL_start_env for all coros, saves some memory per coroutine.
135 - manage PL_top_env differently, hopefully to avoid panic: top_env.
136 - timeout argument was not properly used in Coro::Socket.
137 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
138 - emulate undocumented(!) functionality of IO::Socket required
139 by LWP(!!).
140 - updated eg/lwp to work with newer lwp's.
141 - remove "FATAL: uncaught exception" prefix. Coroutines that die
142 kill the whole process, just as exceptions in the main "coroutine"
143 did already.
144
145 2.1 Wed Nov 1 23:01:13 CET 2006
146 - fix a long-standing bug in Coro::Select where select with
147 zero timeout would instead change the current default filehandle.
148 - use a simpler and hopefully more robust way to clone padlists
149 (uses less memory and a perl function instead of our own).
150 - coro can now create a stack guard area on many architectures.
151 - Coro::AIO properly reexports additional functions from IO::AIO.
152 - updated libcoro with a workaround for OS X,
153 pach and testing by Michael Schwern.
154
155 2.0 Tue Oct 24 05:47:17 CEST 2006
156 - support additional aio requests in Coro::AIO.
157
158 1.9 (never properly released due to a glitch)
159
160 1.8 Thu Feb 2 00:59:06 CET 2006
161 - applied suggested patch by SAMV to avoid problems during stupid
162 mark & sweep gc run.
163 - applied patch by Scott Walters for 5.9.3 compatibility.
164
165 1.7 Tue Dec 27 01:41:58 CET 2005
166 - added Coro::AIO, a thin wrapper around IO::AIO.
167 - improved Makefile.PL explanations.
168
169 1.6 Mon Dec 12 21:30:05 CET 2005
170 - additionally save PM_curpm might fix as-of-yet
171 unseen problems with regex matches being attributed to the
172 wrong package.
173 - add t/10_bugs.t, which currently checks against imho broken
174 perls that use 0.26MB of stack space per Perl_magic_get
175 invocation (newer linuxes) as opposed to the 0.0002MB perl
176 normally uses.
177 - make stacksize configurable for the ultimate debian experience.
178
179 1.51 Mon Dec 12 18:48:36 CET 2005
180 - remove debugging warn() accidentally left in Coro::Select.
181
182 1.5 Tue Nov 29 13:32:44 CET 2005
183 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
184 - fix Coro::Select 'select'.
185 - strict'ify some modules.
186 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
187 - use XSLoader in selected modules.
188 - remove some 5.6 compatibility cruft.
189
190 1.4 Tue Sep 6 00:11:05 CEST 2005
191 - libcoro did not take into account the trampoline on amd64,
192 when 'l'inux method was used.
193
194 1.31 Tue Aug 30 23:31:33 CEST 2005
195 - some portability fixes/workarounds.
196
197 1.3 Sat Aug 20 03:08:56 CEST 2005
198 - no code changes. module seems to work fine.
199 - improve Coro::State docs, remove reference to nonexisting
200 Coro::State::flush method.
201 - no longer autodetect windows, present it as an option instead.
202
203 1.2 Mon May 16 02:00:55 CEST 2005
204 - included libcoro.c earlier in State.xs, might improve portability.
205 - use a faster and possibly more stable Coro::Cont implementation.
206 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
207 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
208 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
209
210 1.11 Thu Mar 3 18:00:52 CET 2005
211 - change of contact address.
212
213 1.1 Tue Feb 22 20:51:16 CET 2005
214 - support [l]inux method on amd64.
215 - allow some context switches while compiling/eval'ing.
216
217 1.0 Tue Aug 10 03:47:27 CEST 2004
218 - Event 0.89 fixes the bug again.
219 - fix the remaining(??) memleak. I didn't free the cache-AV for
220 padlists, so one AV per created anon-sub leaked.
221
222 0.97 Fri May 14 15:23:32 CEST 2004
223 - remove stupid gcc extension that was an experiment only anyway.
224
225 0.96 Thu May 13 18:09:29 CEST 2004
226 - tell people if they have yet another broken Event variant.
227 - made Coro to work _better_ with threads (it seems that, as long
228 as you use Coros in one thread only everything will work fine.
229 Looking at the perl source the problem might be missing locking
230 between Coro and some perl internal routines. That's not easily
231 fixable).
232 - (hopefully) got rid of the static xnext inside transfer.
233
234 0.95 Sun Feb 15 03:20:28 CET 2004
235 - removed Coro::State::flush, implemented a new and much
236 faster caching mechanism by attaching magic to the CV.
237 - a memleak with (real) closures remains.
238 - dramatically reduced size of stacks to 65536 (linux/x86), after
239 observing that even myhttpd never had more than a kilobyte
240 of stack in use (stack is still only physically allocated in
241 pagesize increments for systems suporting mmap).
242 - fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
243 - fix for threaded perl.
244
245 0.9 Sun Nov 23 04:32:39 CET 2003
246 - fix a few very hard to track down but (of course) stupid
247 memory leaks.
248 - stringify version number to avoid locale problems :(.
249 - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
250 hopefully ignoring it "just works".
251
252 0.8 Wed Nov 5 19:38:40 CET 2003
253 - port to perl5.005_03, but only 5.8.x+ is supported!
254 - honor LocalAddr even without LocalPort in Coro::Socket.
255
256 0.7 Tue May 27 03:12:38 CEST 2003
257 - the version jump indicates some level of testing, not gobs
258 of new features.
259 - uh... I found the prompt function in ExtUtils::MakeMaker.
260 Highly correct stuff, that is...
261 - fixed(?) a bug with die's in coroutines causing "panic: top_env".
262 the fix is not well understood by the author, so beware :(.
263
264 0.652 Thu May 8 02:54:46 CEST 2003
265 - Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
266 cause version 4 doesn't have ucontext.
267 - Benjamin Reed reported that setjmp works fine on darwin,
268 so preselect it.
269
270 0.651 Sat Mar 29 15:00:23 CET 2003
271 - fix a bug in Coro::Handle where some bytes could get lost
272 on reading, reported by jason@nichego.net.
273
274 0.65 Sun Mar 23 00:08:26 CET 2003
275 - added a README.linux-glibc.
276 - new module Coro::Select.
277 - also save/restore PL_comppad, fixes segfaults with 5.8.1.
278 (I never claimed that I know what I am doing ;).
279 - set default to setjmp/longjmp on non-x86-linux.
280
281 0.6 Thu Nov 21 11:09:06 CET 2002
282 - made lazy context switching the default.
283 - fixed the bug where SemaphoreSet::guard
284 was the same as timed_guard and timed_guard was missing.
285 - fix a memleak in Coro::Timer.
286 - reclassified context sharing as not experimental.
287
288 0.534 Sun Apr 14 03:05:12 CEST 2002
289 - fixed backspace => tab in header parsing (myhttpd).
290 - added eg/readline, for elmex.
291 - Coro::Event now calls ->start on first call instead of
292 ->again, which created wrong timeouts for the first ->next.
293 - fixed a bug where Coro::Socket returned a closed socket instead
294 of nothing on ECONNREFUSED and similar error conditions.
295
296 0.533 Mon Feb 18 18:49:40 CET 2002
297 - adapt to finally working Event-0.85.
298 - fixed buggy event initialization (trapped under windows, but how
299 could it possibly have worked anywhere?)
300
301 0.532 Wed Jan 16 02:45:32 CET 2002
302 - removed the reference to pp_entersub, might work on
303 (some) win32 perls now (testsuite works under cygwin,
304 without Event, which freezes).
305
306 0.531 Mon Dec 10 22:18:44 CET 2001
307 - Fixed a bug in SemaphoreSet::timed_down.
308
309 0.53 Tue Nov 27 21:11:13 CET 2001
310 - some tests for Event.
311 - slightly different internal architecture to get refcnt into the object
312 and not the reference. might fix a few bugs, certainly did introduce
313 new ones.
314 - Coro::Timer (independent of Event).
315 - new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
316
317 0.52 Tue Nov 6 21:36:18 CET 2001
318 - ported to cygwin (trivial).
319 patch by Gerrit P. Haase <gp@familiehaase.de>.
320 - small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
321
322 0.51 Thu Nov 1 20:39:01 CET 2001
323 - terminate/cancel now work properly (otherwise termination
324 could cause a "next coroutine is not and contains not..."
325 error.
326 - added Coro::Socket::shutdown.
327 - Coro::Event::loop no is the same as Event::loop.
328 - implemented terminate with args + join.
329
330 0.5 Fri Sep 28 16:15:35 CEST 2001
331 - fixed "print" on a Coro::Handle. The print method worked.
332 - small tweaks (seem to reduce memory consumption a lot)
333 in various modules.
334 - splendid use of "no warnings" scattered throughout.
335 - added Coro::Handle::rbuf, fixed Coro::Handle::fh.
336
337 0.49 Sun Sep 16 02:42:45 CEST 2001
338 - changed some method calls to function calls for speed
339 inside Coro::Handle.
340 - make Coro::Handle use an array instead of a hash for
341 speed reasons.
342 - IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
343 sjlj and ucontext should now work.
344 - IRIX-specific port for libcoro.
345 - swapped order of accept results to match IO::Socket.
346 - changed getsock/peername to sock/peername to match IO::Socket.
347 - fixed a bug that caused segfault when returning to main task
348 under some circumstances.
349 - other bugfixes.
350
351 0.45 Sun Sep 2 02:54:01 CEST 2001
352 - new method Coro::Handle::timeout.
353 - corrected speling of set...name to get...name in Coro::Socket.
354 - Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
355 - Coro::Handle now supports fileno and FILENO.
356 - added eg/myhttpd, a web server.
357 - Coro::Socket now accepts numeric ports as well as "port(number)"
358 syntax.
359 - moved some scheduling primitives into xs code. more to come.
360 - new simple priority system.
361 - implemented Coro::Event using XS, almost four times faster!
362 - small memory corruption problem fixed (boy that was difficult).
363
364 0.13 Wed Aug 8 16:53:07 CEST 2001
365 - new method Coro::Handle::readline.
366 - added eg/lwp and Coro::Handle::autoflush, to make LWP work.
367 (see eg/lwp on how to make LWP non-blocking).
368 - renamed Coro::Socket::new_inet to new.
369 - added Coro::Util, some utility functions.
370 - die/eval now works better (still get annoying (but true ;)
371 "Callback called exit" messages).
372 - Coro::Handle now supports timeout, and Coro::Socket Timeout.
373 - much better Coro::Socket support.
374
375 0.12 Fri Jul 27 04:19:01 CEST 2001
376 - do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
377 - very experimental stack sharing algorithm. not 100% safe but
378 should work well in practise ;)
379 - added Coro::RWLock.
380 - Coro::Specific now works.
381
382 0.11 Tue Jul 24 22:49:21 CEST 2001
383 - added specialized hack for newer and older linux versions (fast).
384 - renamed Coro::Event::IO to Coro::Handle.
385 - new module Coro::Socket.
386
387 0.1 Tue Jul 24 01:47:53 CEST 2001
388 - release candidate 3. A rather new internal structure :(
389 - the great renaming: Damian Conway gave me a suitable replacement
390 for yield.
391 - added Coro/libcoro, a portable coroutine implementation for C
392 (not even perl-dependent!!!), which can be used by Coro::State.
393 - renamed SAVE_DEFSV (on xs-level only) to avoid symbol clash in
394 perl-5.6.
395 - new function Coro::Event::idle.
396 - the idle process is now overriden
397 by default in Coro::Event.
398 - Coro::Channel now enforces the size.
399 - canceling events now works in all cases.
400 - Coro state now include $_ and $@.
401 - yet another bug workaround that I do not really understand :(
402 - new module Coro::Event::IO (very undocumented) to do
403 non-blocking i/o.
404 - performance tuning.
405
406 0.08 Thu Jul 19 06:13:25 CEST 2001
407 - release candidate 2 (new functionality).
408 - add Coro::State::flush function.
409 - transfer now supports a flags value (mostly for speed ATM).
410 - might compile and work in the presence of threads now.
411 - continuations have a saner syntax.
412 - no more memleaks.
413
414 0.07 Tue Jul 17 17:40:18 CEST 2001
415 - release candidate 1 ;)
416 - slightly nicer code.
417 - fixed a scheduling bug in Coro::Event.
418
419 0.06 Tue Jul 17 04:23:24 CEST 2001
420 - ok, I found the showstopper - the same sub must not be
421 re-entered in two different coroutines, otherwise => crash. I
422 see no easy solution to this problem, except by walking the call
423 chaing and saving/restoring the cv's, which is what I do now.
424 - memory leaks still latent, especially at thread termination.
425 - Coro::Event now works (haha).
426
427 0.05 Sun Jul 15 17:32:20 CEST 2001
428 - fixed a few issues in Coro::Event.
429 - I forgot to include Coro::Event in 0.04 :(:(:(
430
431 0.04 Sun Jul 15 05:24:59 CEST 2001
432 - @_ is now properly localized.
433 - Coro::State is now easier subclassable.
434 - Coro::Cont now coroutine-aware.
435 - Coro::Specific is a low-overhead module to create
436 coroutine-specific vars.
437 - Coro::Event provides a simple interface to Event.
438
439 0.03 Fri Jul 13 14:51:52 CEST 2001
440 - transfer() now implemented in XS (beware).
441 - new module Coro::Cont for really faked continuations.
442 - big internal architecture changes: Coro::State is now
443 really low-level and can thus be used to implement other
444 interesting things, While "Coro::" implements a process-like
445 model. Still crude and subject to change.
446 - $_ and $@ are no longer being localized.
447
448 0.02 Tue Jul 10 01:38:17 CEST 2001
449 - implemented "async" attribute.
450 - $_ and $@ are now localized.
451 - added Coro::Channel.
452 - more testcases, still no docs.
453
454 0.01 Tue Jul 3 02:18:41 CEST 2001
455 - original version; copied from Convert::Scalar.
456