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Revision: 1.179
Committed: Mon Dec 11 20:54:45 2006 UTC (17 years, 5 months ago) by root
Branch: MAIN
Changes since 1.178: +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
5 - improve portability to slightly older perls.
6
7 3.11 Tue Dec 5 13:11:24 CET 2006
8 - fixed some bogus assert's, but as perl.h disables assert even
9 without NDEBUG (thank you very much), not too many people should
10 notice (that did include myself). Andreas König noticed, though :)
11 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
12 it. Also noticed by Andreas König :)
13 - save/restore tainted status.
14 - verified to pass the testsuite on my 5.9.5.
15
16 3.1 Mon Dec 4 23:03:40 CET 2006
17 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
18 - incompatible change: transfer flags are now per-state.
19 - give a better error message on deadlock.
20 - document Coro::nready.
21 - enhanced testsuite.
22
23 3.01 Sun Dec 3 23:47:42 CET 2006
24 - forgot to include Coro::Timer.
25
26 3.0 Sun Dec 3 22:57:25 CET 2006
27 - the "FINALLY COMPLETELY STABLE" release (coming soon:
28 the "FAMOUS LAST WORDS" release).
29 - implement a new stack sharing algorithm, which uses a stack
30 pool (size currently hardcoded).
31 - make stack sharing mandatory (it no longer uses a heuristic).
32 - eval/die no longer cause weird problems under heavy use.
33 - Coro::Event could cause livelocks if it was used but
34 no Coro::Event watchers were used.
35 - Coro::Event now uses asynccheck as prepare does not
36 check for changed watchers.
37 - Coro::Event allows multiple waiting coros and will wake up one
38 per event.
39 - Coro::Event should be cleaner and more efficient now.
40 - new utility function Coro::unblock_sub.
41 - document the sad fact that Event is no longer reentrant.
42 - putting a coroutine into the ready queue twice could under
43 some circumstances lead to stack corruption.
44 - minor incompatibility: subclassing Coro::State is supported
45 directly now without going through a _coro_state member.
46 - state/coro switching is much faster now.
47 - very minor optimisations and code/documentation cleanup.
48 - avoid problems due to compiler inlining.
49 - removed timers from Coro::Timer -> use AnyEvent instead.
50 - replaced Coro::idle coroutine by (cleaner) idle handler.
51 - updated to newest libcoro.
52 - implement enhanced support for valgrind.
53 - implement is_ready and return value for ready.
54 - removed Coro::Cont, it was a misnomer (it's generators),
55 and it was somewhat annoying to get it right. Will come back
56 if somebody asks for it :)
57 - many ->wait methods and Coro::Event could return
58 spuriously without the event having happened.
59
60 2.5 Tue Nov 7 12:22:33 CET 2006
61 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
62 use AnyEvent, moved them to Coro/.
63 - added Coro::LWP which contains all the uglyness required to
64 make LWP non-blocking.
65 - should work with perl 5.9.x now (Andreas König made me do it).
66 - fixed another bug in Coro::Select when the timeout was undef.
67 - reuse PL_start_env for all coros, saves some memory per coroutine.
68 - manage PL_top_env differently, hopefully to avoid panic: top_env.
69 - timeout argument was not properly used in Coro::Socket.
70 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
71 - emulate undocumented(!) functionality of IO::Socket required
72 by LWP(!!).
73 - updated eg/lwp to work with newer lwp's.
74 - remove "FATAL: uncaught exception" prefix. Coroutines that die
75 kill the whole process, just as exceptions in the main "coroutine"
76 did already.
77
78 2.1 Wed Nov 1 23:01:13 CET 2006
79 - fix a long-standing bug in Coro::Select where select with
80 zero timeout would instead change the current default filehandle.
81 - use a simpler and hopefully more robust way to clone padlists
82 (uses less memory and a perl function instead of our own).
83 - coro can now create a stack guard area on many architectures.
84 - Coro::AIO properly reexports additional functions from IO::AIO.
85 - updated libcoro with a workaround for OS X,
86 pach and testing by Michael Schwern.
87
88 2.0 Tue Oct 24 05:47:17 CEST 2006
89 - support additional aio requests in Coro::AIO.
90
91 1.9 (never properly released due to a glitch)
92
93 1.8 Thu Feb 2 00:59:06 CET 2006
94 - applied suggested patch by SAMV to avoid problems during stupid
95 mark & sweep gc run.
96 - applied patch by Scott Walters for 5.9.3 compatibility.
97
98 1.7 Tue Dec 27 01:41:58 CET 2005
99 - added Coro::AIO, a thin wrapper around IO::AIO.
100 - improved Makefile.PL explanations.
101
102 1.6 Mon Dec 12 21:30:05 CET 2005
103 - additionally save PM_curpm might fix as-of-yet
104 unseen problems with regex matches being attributed to the
105 wrong package.
106 - add t/10_bugs.t, which currently checks against imho broken
107 perls that use 0.26MB of stack space per Perl_magic_get
108 invocation (newer linuxes) as opposed to the 0.0002MB perl
109 normally uses.
110 - make stacksize configurable for the ultimate debian experience.
111
112 1.51 Mon Dec 12 18:48:36 CET 2005
113 - remove debugging warn() accidentally left in Coro::Select.
114
115 1.5 Tue Nov 29 13:32:44 CET 2005
116 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
117 - fix Coro::Select 'select'.
118 - strict'ify some modules.
119 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
120 - use XSLoader in selected modules.
121 - remove some 5.6 compatibility cruft.
122
123 1.4 Tue Sep 6 00:11:05 CEST 2005
124 - libcoro did not take into account the trampoline on amd64,
125 when 'l'inux method was used.
126
127 1.31 Tue Aug 30 23:31:33 CEST 2005
128 - some portability fixes/workarounds.
129
130 1.3 Sat Aug 20 03:08:56 CEST 2005
131 - no code changes. module seems to work fine.
132 - improve Coro::State docs, remove reference to nonexisting
133 Coro::State::flush method.
134 - no longer autodetect windows, present it as an option instead.
135
136 1.2 Mon May 16 02:00:55 CEST 2005
137 - included libcoro.c earlier in State.xs, might improve portability.
138 - use a faster and possibly more stable Coro::Cont implementation.
139 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
140 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
141 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
142
143 1.11 Thu Mar 3 18:00:52 CET 2005
144 - change of contact address.
145
146 1.1 Tue Feb 22 20:51:16 CET 2005
147 - support [l]inux method on amd64.
148 - allow some context switches while compiling/eval'ing.
149
150 1.0 Tue Aug 10 03:47:27 CEST 2004
151 - Event 0.89 fixes the bug again.
152 - fix the remaining(??) memleak. I didn't free the cache-AV for
153 padlists, so one AV per created anon-sub leaked.
154
155 0.97 Fri May 14 15:23:32 CEST 2004
156 - remove stupid gcc extension that was an experiment only anyway.
157
158 0.96 Thu May 13 18:09:29 CEST 2004
159 - tell people if they have yet another broken Event variant.
160 - made Coro to work _better_ with threads (it seems that, as long
161 as you use Coros in one thread only everything will work fine.
162 Looking at the perl source the problem might be missing locking
163 between Coro and some perl internal routines. That's not easily
164 fixable).
165 - (hopefully) got rid of the static xnext inside transfer.
166
167 0.95 Sun Feb 15 03:20:28 CET 2004
168 - removed Coro::State::flush, implemented a new and much
169 faster caching mechanism by attaching magic to the CV.
170 - a memleak with (real) closures remains.
171 - dramatically reduced size of stacks to 65536 (linux/x86), after
172 observing that even myhttpd never had more than a kilobyte
173 of stack in use (stack is still only physically allocated in
174 pagesize increments for systems suporting mmap).
175 - fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
176 - fix for threaded perl.
177
178 0.9 Sun Nov 23 04:32:39 CET 2003
179 - fix a few very hard to track down but (of course) stupid
180 memory leaks.
181 - stringify version number to avoid locale problems :(.
182 - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
183 hopefully ignoring it "just works".
184
185 0.8 Wed Nov 5 19:38:40 CET 2003
186 - port to perl5.005_03, but only 5.8.x+ is supported!
187 - honor LocalAddr even without LocalPort in Coro::Socket.
188
189 0.7 Tue May 27 03:12:38 CEST 2003
190 - the version jump indicates some level of testing, not gobs
191 of new features.
192 - uh... I found the prompt function in ExtUtils::MakeMaker.
193 Highly correct stuff, that is...
194 - fixed(?) a bug with die's in coroutines causing "panic: top_env".
195 the fix is not well understood by the author, so beware :(.
196
197 0.652 Thu May 8 02:54:46 CEST 2003
198 - Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
199 cause version 4 doesn't have ucontext.
200 - Benjamin Reed reported that setjmp works fine on darwin,
201 so preselect it.
202
203 0.651 Sat Mar 29 15:00:23 CET 2003
204 - fix a bug in Coro::Handle where some bytes could get lost
205 on reading, reported by jason@nichego.net.
206
207 0.65 Sun Mar 23 00:08:26 CET 2003
208 - added a README.linux-glibc.
209 - new module Coro::Select.
210 - also save/restore PL_comppad, fixes segfaults with 5.8.1.
211 (I never claimed that I know what I am doing ;).
212 - set default to setjmp/longjmp on non-x86-linux.
213
214 0.6 Thu Nov 21 11:09:06 CET 2002
215 - made lazy context switching the default.
216 - fixed the bug where SemaphoreSet::guard
217 was the same as timed_guard and timed_guard was missing.
218 - fix a memleak in Coro::Timer.
219 - reclassified context sharing as not experimental.
220
221 0.534 Sun Apr 14 03:05:12 CEST 2002
222 - fixed backspace => tab in header parsing (myhttpd).
223 - added eg/readline, for elmex.
224 - Coro::Event now calls ->start on first call instead of
225 ->again, which created wrong timeouts for the first ->next.
226 - fixed a bug where Coro::Socket returned a closed socket instead
227 of nothing on ECONNREFUSED and similar error conditions.
228
229 0.533 Mon Feb 18 18:49:40 CET 2002
230 - adapt to finally working Event-0.85.
231 - fixed buggy event initialization (trapped under windows, but how
232 could it possibly have worked anywhere?)
233
234 0.532 Wed Jan 16 02:45:32 CET 2002
235 - removed the reference to pp_entersub, might work on
236 (some) win32 perls now (testsuite works under cygwin,
237 without Event, which freezes).
238
239 0.531 Mon Dec 10 22:18:44 CET 2001
240 - Fixed a bug in SemaphoreSet::timed_down.
241
242 0.53 Tue Nov 27 21:11:13 CET 2001
243 - some tests for Event.
244 - slightly different internal architecture to get refcnt into the object
245 and not the reference. might fix a few bugs, certainly did introduce
246 new ones.
247 - Coro::Timer (independent of Event).
248 - new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
249
250 0.52 Tue Nov 6 21:36:18 CET 2001
251 - ported to cygwin (trivial).
252 patch by Gerrit P. Haase <gp@familiehaase.de>.
253 - small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
254
255 0.51 Thu Nov 1 20:39:01 CET 2001
256 - terminate/cancel now work properly (otherwise termination
257 could cause a "next coroutine is not and contains not..."
258 error.
259 - added Coro::Socket::shutdown.
260 - Coro::Event::loop no is the same as Event::loop.
261 - implemented terminate with args + join.
262
263 0.5 Fri Sep 28 16:15:35 CEST 2001
264 - fixed "print" on a Coro::Handle. The print method worked.
265 - small tweaks (seem to reduce memory consumption a lot)
266 in various modules.
267 - splendid use of "no warnings" scattered throughout.
268 - added Coro::Handle::rbuf, fixed Coro::Handle::fh.
269
270 0.49 Sun Sep 16 02:42:45 CEST 2001
271 - changed some method calls to function calls for speed
272 inside Coro::Handle.
273 - make Coro::Handle use an array instead of a hash for
274 speed reasons.
275 - IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
276 sjlj and ucontext should now work.
277 - IRIX-specific port for libcoro.
278 - swapped order of accept results to match IO::Socket.
279 - changed getsock/peername to sock/peername to match IO::Socket.
280 - fixed a bug that caused segfault when returning to main task
281 under some circumstances.
282 - other bugfixes.
283
284 0.45 Sun Sep 2 02:54:01 CEST 2001
285 - new method Coro::Handle::timeout.
286 - corrected speling of set...name to get...name in Coro::Socket.
287 - Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
288 - Coro::Handle now supports fileno and FILENO.
289 - added eg/myhttpd, a web server.
290 - Coro::Socket now accepts numeric ports as well as "port(number)"
291 syntax.
292 - moved some scheduling primitives into xs code. more to come.
293 - new simple priority system.
294 - implemented Coro::Event using XS, almost four times faster!
295 - small memory corruption problem fixed (boy that was difficult).
296
297 0.13 Wed Aug 8 16:53:07 CEST 2001
298 - new method Coro::Handle::readline.
299 - added eg/lwp and Coro::Handle::autoflush, to make LWP work.
300 (see eg/lwp on how to make LWP non-blocking).
301 - renamed Coro::Socket::new_inet to new.
302 - added Coro::Util, some utility functions.
303 - die/eval now works better (still get annoying (but true ;)
304 "Callback called exit" messages).
305 - Coro::Handle now supports timeout, and Coro::Socket Timeout.
306 - much better Coro::Socket support.
307
308 0.12 Fri Jul 27 04:19:01 CEST 2001
309 - do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
310 - very experimental stack sharing algorithm. not 100% safe but
311 should work well in practise ;)
312 - added Coro::RWLock.
313 - Coro::Specific now works.
314
315 0.11 Tue Jul 24 22:49:21 CEST 2001
316 - added specialized hack for newer and older linux versions (fast).
317 - renamed Coro::Event::IO to Coro::Handle.
318 - new module Coro::Socket.
319
320 0.1 Tue Jul 24 01:47:53 CEST 2001
321 - release candidate 3. A rather new internal structure :(
322 - the great renaming: Damian Conway gave me a suitable replacement
323 for yield.
324 - added Coro/libcoro, a portable coroutine implementation for C
325 (not even perl-dependent!!!), which can be used by Coro::State.
326 - renamed SAVE_DEFSV (on xs-level only) to avoid symbol clash in
327 perl-5.6.
328 - new function Coro::Event::idle.
329 - the idle process is now overriden
330 by default in Coro::Event.
331 - Coro::Channel now enforces the size.
332 - canceling events now works in all cases.
333 - Coro state now include $_ and $@.
334 - yet another bug workaround that I do not really understand :(
335 - new module Coro::Event::IO (very undocumented) to do
336 non-blocking i/o.
337 - performance tuning.
338
339 0.08 Thu Jul 19 06:13:25 CEST 2001
340 - release candidate 2 (new functionality).
341 - add Coro::State::flush function.
342 - transfer now supports a flags value (mostly for speed ATM).
343 - might compile and work in the presence of threads now.
344 - continuations have a saner syntax.
345 - no more memleaks.
346
347 0.07 Tue Jul 17 17:40:18 CEST 2001
348 - release candidate 1 ;)
349 - slightly nicer code.
350 - fixed a scheduling bug in Coro::Event.
351
352 0.06 Tue Jul 17 04:23:24 CEST 2001
353 - ok, I found the showstopper - the same sub must not be
354 re-entered in two different coroutines, otherwise => crash. I
355 see no easy solution to this problem, except by walking the call
356 chaing and saving/restoring the cv's, which is what I do now.
357 - memory leaks still latent, especially at thread termination.
358 - Coro::Event now works (haha).
359
360 0.05 Sun Jul 15 17:32:20 CEST 2001
361 - fixed a few issues in Coro::Event.
362 - I forgot to include Coro::Event in 0.04 :(:(:(
363
364 0.04 Sun Jul 15 05:24:59 CEST 2001
365 - @_ is now properly localized.
366 - Coro::State is now easier subclassable.
367 - Coro::Cont now coroutine-aware.
368 - Coro::Specific is a low-overhead module to create
369 coroutine-specific vars.
370 - Coro::Event provides a simple interface to Event.
371
372 0.03 Fri Jul 13 14:51:52 CEST 2001
373 - transfer() now implemented in XS (beware).
374 - new module Coro::Cont for really faked continuations.
375 - big internal architecture changes: Coro::State is now
376 really low-level and can thus be used to implement other
377 interesting things, While "Coro::" implements a process-like
378 model. Still crude and subject to change.
379 - $_ and $@ are no longer being localized.
380
381 0.02 Tue Jul 10 01:38:17 CEST 2001
382 - implemented "async" attribute.
383 - $_ and $@ are now localized.
384 - added Coro::Channel.
385 - more testcases, still no docs.
386
387 0.01 Tue Jul 3 02:18:41 CEST 2001
388 - original version; copied from Convert::Scalar.
389