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Revision: 1.191
Committed: Thu Jan 4 20:14:19 2007 UTC (17 years, 4 months ago) by root
Branch: MAIN
Changes since 1.190: +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 3.3
7 - implement $coro->on_destroy.
8 - Coro::Event blocking semantics have been changed,
9 documented and - hopefully - improved.
10 - fix nice adding, not subtracting, from priority.
11 - fix ->prio and api_is_ready (patch by Mark Hinds).
12 - fixed an assert ("... == prev__cctx->idle_te")
13 that could errronously trigger.
14 - use a (hopefully) more stable cancel implementation
15 that immediately frees the coroutine data.
16 - added Coro::guard function.
17
18 3.2 Fri Dec 22 05:07:09 CET 2006
19 - improve portability to slightly older perls.
20 - use cleaner coroutine destruction.
21 - simplify configuration for users.
22 - optionally (unrecommended) prefer perl functions over
23 their coro replacements.
24
25 3.11 Tue Dec 5 13:11:24 CET 2006
26 - fixed some bogus assert's, but as perl.h disables assert even
27 without NDEBUG (thank you very much), not too many people should
28 notice (that did include myself). Andreas König noticed, though :)
29 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
30 it. Also noticed by Andreas König :)
31 - save/restore tainted status.
32 - verified to pass the testsuite on my 5.9.5.
33
34 3.1 Mon Dec 4 23:03:40 CET 2006
35 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
36 - incompatible change: transfer flags are now per-state.
37 - give a better error message on deadlock.
38 - document Coro::nready.
39 - enhanced testsuite.
40
41 3.01 Sun Dec 3 23:47:42 CET 2006
42 - forgot to include Coro::Timer.
43
44 3.0 Sun Dec 3 22:57:25 CET 2006
45 - the "FINALLY COMPLETELY STABLE" release (coming soon:
46 the "FAMOUS LAST WORDS" release).
47 - implement a new stack sharing algorithm, which uses a stack
48 pool (size currently hardcoded).
49 - make stack sharing mandatory (it no longer uses a heuristic).
50 - eval/die no longer cause weird problems under heavy use.
51 - Coro::Event could cause livelocks if it was used but
52 no Coro::Event watchers were used.
53 - Coro::Event now uses asynccheck as prepare does not
54 check for changed watchers.
55 - Coro::Event allows multiple waiting coros and will wake up one
56 per event.
57 - Coro::Event should be cleaner and more efficient now.
58 - new utility function Coro::unblock_sub.
59 - document the sad fact that Event is no longer reentrant.
60 - putting a coroutine into the ready queue twice could under
61 some circumstances lead to stack corruption.
62 - minor incompatibility: subclassing Coro::State is supported
63 directly now without going through a _coro_state member.
64 - state/coro switching is much faster now.
65 - very minor optimisations and code/documentation cleanup.
66 - avoid problems due to compiler inlining.
67 - removed timers from Coro::Timer -> use AnyEvent instead.
68 - replaced Coro::idle coroutine by (cleaner) idle handler.
69 - updated to newest libcoro.
70 - implement enhanced support for valgrind.
71 - implement is_ready and return value for ready.
72 - removed Coro::Cont, it was a misnomer (it's generators),
73 and it was somewhat annoying to get it right. Will come back
74 if somebody asks for it :)
75 - many ->wait methods and Coro::Event could return
76 spuriously without the event having happened.
77
78 2.5 Tue Nov 7 12:22:33 CET 2006
79 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
80 use AnyEvent, moved them to Coro/.
81 - added Coro::LWP which contains all the uglyness required to
82 make LWP non-blocking.
83 - should work with perl 5.9.x now (Andreas König made me do it).
84 - fixed another bug in Coro::Select when the timeout was undef.
85 - reuse PL_start_env for all coros, saves some memory per coroutine.
86 - manage PL_top_env differently, hopefully to avoid panic: top_env.
87 - timeout argument was not properly used in Coro::Socket.
88 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
89 - emulate undocumented(!) functionality of IO::Socket required
90 by LWP(!!).
91 - updated eg/lwp to work with newer lwp's.
92 - remove "FATAL: uncaught exception" prefix. Coroutines that die
93 kill the whole process, just as exceptions in the main "coroutine"
94 did already.
95
96 2.1 Wed Nov 1 23:01:13 CET 2006
97 - fix a long-standing bug in Coro::Select where select with
98 zero timeout would instead change the current default filehandle.
99 - use a simpler and hopefully more robust way to clone padlists
100 (uses less memory and a perl function instead of our own).
101 - coro can now create a stack guard area on many architectures.
102 - Coro::AIO properly reexports additional functions from IO::AIO.
103 - updated libcoro with a workaround for OS X,
104 pach and testing by Michael Schwern.
105
106 2.0 Tue Oct 24 05:47:17 CEST 2006
107 - support additional aio requests in Coro::AIO.
108
109 1.9 (never properly released due to a glitch)
110
111 1.8 Thu Feb 2 00:59:06 CET 2006
112 - applied suggested patch by SAMV to avoid problems during stupid
113 mark & sweep gc run.
114 - applied patch by Scott Walters for 5.9.3 compatibility.
115
116 1.7 Tue Dec 27 01:41:58 CET 2005
117 - added Coro::AIO, a thin wrapper around IO::AIO.
118 - improved Makefile.PL explanations.
119
120 1.6 Mon Dec 12 21:30:05 CET 2005
121 - additionally save PM_curpm might fix as-of-yet
122 unseen problems with regex matches being attributed to the
123 wrong package.
124 - add t/10_bugs.t, which currently checks against imho broken
125 perls that use 0.26MB of stack space per Perl_magic_get
126 invocation (newer linuxes) as opposed to the 0.0002MB perl
127 normally uses.
128 - make stacksize configurable for the ultimate debian experience.
129
130 1.51 Mon Dec 12 18:48:36 CET 2005
131 - remove debugging warn() accidentally left in Coro::Select.
132
133 1.5 Tue Nov 29 13:32:44 CET 2005
134 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
135 - fix Coro::Select 'select'.
136 - strict'ify some modules.
137 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
138 - use XSLoader in selected modules.
139 - remove some 5.6 compatibility cruft.
140
141 1.4 Tue Sep 6 00:11:05 CEST 2005
142 - libcoro did not take into account the trampoline on amd64,
143 when 'l'inux method was used.
144
145 1.31 Tue Aug 30 23:31:33 CEST 2005
146 - some portability fixes/workarounds.
147
148 1.3 Sat Aug 20 03:08:56 CEST 2005
149 - no code changes. module seems to work fine.
150 - improve Coro::State docs, remove reference to nonexisting
151 Coro::State::flush method.
152 - no longer autodetect windows, present it as an option instead.
153
154 1.2 Mon May 16 02:00:55 CEST 2005
155 - included libcoro.c earlier in State.xs, might improve portability.
156 - use a faster and possibly more stable Coro::Cont implementation.
157 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
158 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
159 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
160
161 1.11 Thu Mar 3 18:00:52 CET 2005
162 - change of contact address.
163
164 1.1 Tue Feb 22 20:51:16 CET 2005
165 - support [l]inux method on amd64.
166 - allow some context switches while compiling/eval'ing.
167
168 1.0 Tue Aug 10 03:47:27 CEST 2004
169 - Event 0.89 fixes the bug again.
170 - fix the remaining(??) memleak. I didn't free the cache-AV for
171 padlists, so one AV per created anon-sub leaked.
172
173 0.97 Fri May 14 15:23:32 CEST 2004
174 - remove stupid gcc extension that was an experiment only anyway.
175
176 0.96 Thu May 13 18:09:29 CEST 2004
177 - tell people if they have yet another broken Event variant.
178 - made Coro to work _better_ with threads (it seems that, as long
179 as you use Coros in one thread only everything will work fine.
180 Looking at the perl source the problem might be missing locking
181 between Coro and some perl internal routines. That's not easily
182 fixable).
183 - (hopefully) got rid of the static xnext inside transfer.
184
185 0.95 Sun Feb 15 03:20:28 CET 2004
186 - removed Coro::State::flush, implemented a new and much
187 faster caching mechanism by attaching magic to the CV.
188 - a memleak with (real) closures remains.
189 - dramatically reduced size of stacks to 65536 (linux/x86), after
190 observing that even myhttpd never had more than a kilobyte
191 of stack in use (stack is still only physically allocated in
192 pagesize increments for systems suporting mmap).
193 - fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
194 - fix for threaded perl.
195
196 0.9 Sun Nov 23 04:32:39 CET 2003
197 - fix a few very hard to track down but (of course) stupid
198 memory leaks.
199 - stringify version number to avoid locale problems :(.
200 - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
201 hopefully ignoring it "just works".
202
203 0.8 Wed Nov 5 19:38:40 CET 2003
204 - port to perl5.005_03, but only 5.8.x+ is supported!
205 - honor LocalAddr even without LocalPort in Coro::Socket.
206
207 0.7 Tue May 27 03:12:38 CEST 2003
208 - the version jump indicates some level of testing, not gobs
209 of new features.
210 - uh... I found the prompt function in ExtUtils::MakeMaker.
211 Highly correct stuff, that is...
212 - fixed(?) a bug with die's in coroutines causing "panic: top_env".
213 the fix is not well understood by the author, so beware :(.
214
215 0.652 Thu May 8 02:54:46 CEST 2003
216 - Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
217 cause version 4 doesn't have ucontext.
218 - Benjamin Reed reported that setjmp works fine on darwin,
219 so preselect it.
220
221 0.651 Sat Mar 29 15:00:23 CET 2003
222 - fix a bug in Coro::Handle where some bytes could get lost
223 on reading, reported by jason@nichego.net.
224
225 0.65 Sun Mar 23 00:08:26 CET 2003
226 - added a README.linux-glibc.
227 - new module Coro::Select.
228 - also save/restore PL_comppad, fixes segfaults with 5.8.1.
229 (I never claimed that I know what I am doing ;).
230 - set default to setjmp/longjmp on non-x86-linux.
231
232 0.6 Thu Nov 21 11:09:06 CET 2002
233 - made lazy context switching the default.
234 - fixed the bug where SemaphoreSet::guard
235 was the same as timed_guard and timed_guard was missing.
236 - fix a memleak in Coro::Timer.
237 - reclassified context sharing as not experimental.
238
239 0.534 Sun Apr 14 03:05:12 CEST 2002
240 - fixed backspace => tab in header parsing (myhttpd).
241 - added eg/readline, for elmex.
242 - Coro::Event now calls ->start on first call instead of
243 ->again, which created wrong timeouts for the first ->next.
244 - fixed a bug where Coro::Socket returned a closed socket instead
245 of nothing on ECONNREFUSED and similar error conditions.
246
247 0.533 Mon Feb 18 18:49:40 CET 2002
248 - adapt to finally working Event-0.85.
249 - fixed buggy event initialization (trapped under windows, but how
250 could it possibly have worked anywhere?)
251
252 0.532 Wed Jan 16 02:45:32 CET 2002
253 - removed the reference to pp_entersub, might work on
254 (some) win32 perls now (testsuite works under cygwin,
255 without Event, which freezes).
256
257 0.531 Mon Dec 10 22:18:44 CET 2001
258 - Fixed a bug in SemaphoreSet::timed_down.
259
260 0.53 Tue Nov 27 21:11:13 CET 2001
261 - some tests for Event.
262 - slightly different internal architecture to get refcnt into the object
263 and not the reference. might fix a few bugs, certainly did introduce
264 new ones.
265 - Coro::Timer (independent of Event).
266 - new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
267
268 0.52 Tue Nov 6 21:36:18 CET 2001
269 - ported to cygwin (trivial).
270 patch by Gerrit P. Haase <gp@familiehaase.de>.
271 - small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
272
273 0.51 Thu Nov 1 20:39:01 CET 2001
274 - terminate/cancel now work properly (otherwise termination
275 could cause a "next coroutine is not and contains not..."
276 error.
277 - added Coro::Socket::shutdown.
278 - Coro::Event::loop no is the same as Event::loop.
279 - implemented terminate with args + join.
280
281 0.5 Fri Sep 28 16:15:35 CEST 2001
282 - fixed "print" on a Coro::Handle. The print method worked.
283 - small tweaks (seem to reduce memory consumption a lot)
284 in various modules.
285 - splendid use of "no warnings" scattered throughout.
286 - added Coro::Handle::rbuf, fixed Coro::Handle::fh.
287
288 0.49 Sun Sep 16 02:42:45 CEST 2001
289 - changed some method calls to function calls for speed
290 inside Coro::Handle.
291 - make Coro::Handle use an array instead of a hash for
292 speed reasons.
293 - IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
294 sjlj and ucontext should now work.
295 - IRIX-specific port for libcoro.
296 - swapped order of accept results to match IO::Socket.
297 - changed getsock/peername to sock/peername to match IO::Socket.
298 - fixed a bug that caused segfault when returning to main task
299 under some circumstances.
300 - other bugfixes.
301
302 0.45 Sun Sep 2 02:54:01 CEST 2001
303 - new method Coro::Handle::timeout.
304 - corrected speling of set...name to get...name in Coro::Socket.
305 - Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
306 - Coro::Handle now supports fileno and FILENO.
307 - added eg/myhttpd, a web server.
308 - Coro::Socket now accepts numeric ports as well as "port(number)"
309 syntax.
310 - moved some scheduling primitives into xs code. more to come.
311 - new simple priority system.
312 - implemented Coro::Event using XS, almost four times faster!
313 - small memory corruption problem fixed (boy that was difficult).
314
315 0.13 Wed Aug 8 16:53:07 CEST 2001
316 - new method Coro::Handle::readline.
317 - added eg/lwp and Coro::Handle::autoflush, to make LWP work.
318 (see eg/lwp on how to make LWP non-blocking).
319 - renamed Coro::Socket::new_inet to new.
320 - added Coro::Util, some utility functions.
321 - die/eval now works better (still get annoying (but true ;)
322 "Callback called exit" messages).
323 - Coro::Handle now supports timeout, and Coro::Socket Timeout.
324 - much better Coro::Socket support.
325
326 0.12 Fri Jul 27 04:19:01 CEST 2001
327 - do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
328 - very experimental stack sharing algorithm. not 100% safe but
329 should work well in practise ;)
330 - added Coro::RWLock.
331 - Coro::Specific now works.
332
333 0.11 Tue Jul 24 22:49:21 CEST 2001
334 - added specialized hack for newer and older linux versions (fast).
335 - renamed Coro::Event::IO to Coro::Handle.
336 - new module Coro::Socket.
337
338 0.1 Tue Jul 24 01:47:53 CEST 2001
339 - release candidate 3. A rather new internal structure :(
340 - the great renaming: Damian Conway gave me a suitable replacement
341 for yield.
342 - added Coro/libcoro, a portable coroutine implementation for C
343 (not even perl-dependent!!!), which can be used by Coro::State.
344 - renamed SAVE_DEFSV (on xs-level only) to avoid symbol clash in
345 perl-5.6.
346 - new function Coro::Event::idle.
347 - the idle process is now overriden
348 by default in Coro::Event.
349 - Coro::Channel now enforces the size.
350 - canceling events now works in all cases.
351 - Coro state now include $_ and $@.
352 - yet another bug workaround that I do not really understand :(
353 - new module Coro::Event::IO (very undocumented) to do
354 non-blocking i/o.
355 - performance tuning.
356
357 0.08 Thu Jul 19 06:13:25 CEST 2001
358 - release candidate 2 (new functionality).
359 - add Coro::State::flush function.
360 - transfer now supports a flags value (mostly for speed ATM).
361 - might compile and work in the presence of threads now.
362 - continuations have a saner syntax.
363 - no more memleaks.
364
365 0.07 Tue Jul 17 17:40:18 CEST 2001
366 - release candidate 1 ;)
367 - slightly nicer code.
368 - fixed a scheduling bug in Coro::Event.
369
370 0.06 Tue Jul 17 04:23:24 CEST 2001
371 - ok, I found the showstopper - the same sub must not be
372 re-entered in two different coroutines, otherwise => crash. I
373 see no easy solution to this problem, except by walking the call
374 chaing and saving/restoring the cv's, which is what I do now.
375 - memory leaks still latent, especially at thread termination.
376 - Coro::Event now works (haha).
377
378 0.05 Sun Jul 15 17:32:20 CEST 2001
379 - fixed a few issues in Coro::Event.
380 - I forgot to include Coro::Event in 0.04 :(:(:(
381
382 0.04 Sun Jul 15 05:24:59 CEST 2001
383 - @_ is now properly localized.
384 - Coro::State is now easier subclassable.
385 - Coro::Cont now coroutine-aware.
386 - Coro::Specific is a low-overhead module to create
387 coroutine-specific vars.
388 - Coro::Event provides a simple interface to Event.
389
390 0.03 Fri Jul 13 14:51:52 CEST 2001
391 - transfer() now implemented in XS (beware).
392 - new module Coro::Cont for really faked continuations.
393 - big internal architecture changes: Coro::State is now
394 really low-level and can thus be used to implement other
395 interesting things, While "Coro::" implements a process-like
396 model. Still crude and subject to change.
397 - $_ and $@ are no longer being localized.
398
399 0.02 Tue Jul 10 01:38:17 CEST 2001
400 - implemented "async" attribute.
401 - $_ and $@ are now localized.
402 - added Coro::Channel.
403 - more testcases, still no docs.
404
405 0.01 Tue Jul 3 02:18:41 CEST 2001
406 - original version; copied from Convert::Scalar.
407