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Revision: 1.181
Committed: Tue Dec 12 04:21:09 2006 UTC (17 years, 5 months ago) by root
Branch: MAIN
Changes since 1.180: +1 -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: "internals mode"
5 TODO: "use defaults for everything"
6
7 - improve portability to slightly older perls.
8 - use cleaner coroutine destruction.
9
10 3.11 Tue Dec 5 13:11:24 CET 2006
11 - fixed some bogus assert's, but as perl.h disables assert even
12 without NDEBUG (thank you very much), not too many people should
13 notice (that did include myself). Andreas König noticed, though :)
14 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
15 it. Also noticed by Andreas König :)
16 - save/restore tainted status.
17 - verified to pass the testsuite on my 5.9.5.
18
19 3.1 Mon Dec 4 23:03:40 CET 2006
20 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
21 - incompatible change: transfer flags are now per-state.
22 - give a better error message on deadlock.
23 - document Coro::nready.
24 - enhanced testsuite.
25
26 3.01 Sun Dec 3 23:47:42 CET 2006
27 - forgot to include Coro::Timer.
28
29 3.0 Sun Dec 3 22:57:25 CET 2006
30 - the "FINALLY COMPLETELY STABLE" release (coming soon:
31 the "FAMOUS LAST WORDS" release).
32 - implement a new stack sharing algorithm, which uses a stack
33 pool (size currently hardcoded).
34 - make stack sharing mandatory (it no longer uses a heuristic).
35 - eval/die no longer cause weird problems under heavy use.
36 - Coro::Event could cause livelocks if it was used but
37 no Coro::Event watchers were used.
38 - Coro::Event now uses asynccheck as prepare does not
39 check for changed watchers.
40 - Coro::Event allows multiple waiting coros and will wake up one
41 per event.
42 - Coro::Event should be cleaner and more efficient now.
43 - new utility function Coro::unblock_sub.
44 - document the sad fact that Event is no longer reentrant.
45 - putting a coroutine into the ready queue twice could under
46 some circumstances lead to stack corruption.
47 - minor incompatibility: subclassing Coro::State is supported
48 directly now without going through a _coro_state member.
49 - state/coro switching is much faster now.
50 - very minor optimisations and code/documentation cleanup.
51 - avoid problems due to compiler inlining.
52 - removed timers from Coro::Timer -> use AnyEvent instead.
53 - replaced Coro::idle coroutine by (cleaner) idle handler.
54 - updated to newest libcoro.
55 - implement enhanced support for valgrind.
56 - implement is_ready and return value for ready.
57 - removed Coro::Cont, it was a misnomer (it's generators),
58 and it was somewhat annoying to get it right. Will come back
59 if somebody asks for it :)
60 - many ->wait methods and Coro::Event could return
61 spuriously without the event having happened.
62
63 2.5 Tue Nov 7 12:22:33 CET 2006
64 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
65 use AnyEvent, moved them to Coro/.
66 - added Coro::LWP which contains all the uglyness required to
67 make LWP non-blocking.
68 - should work with perl 5.9.x now (Andreas König made me do it).
69 - fixed another bug in Coro::Select when the timeout was undef.
70 - reuse PL_start_env for all coros, saves some memory per coroutine.
71 - manage PL_top_env differently, hopefully to avoid panic: top_env.
72 - timeout argument was not properly used in Coro::Socket.
73 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
74 - emulate undocumented(!) functionality of IO::Socket required
75 by LWP(!!).
76 - updated eg/lwp to work with newer lwp's.
77 - remove "FATAL: uncaught exception" prefix. Coroutines that die
78 kill the whole process, just as exceptions in the main "coroutine"
79 did already.
80
81 2.1 Wed Nov 1 23:01:13 CET 2006
82 - fix a long-standing bug in Coro::Select where select with
83 zero timeout would instead change the current default filehandle.
84 - use a simpler and hopefully more robust way to clone padlists
85 (uses less memory and a perl function instead of our own).
86 - coro can now create a stack guard area on many architectures.
87 - Coro::AIO properly reexports additional functions from IO::AIO.
88 - updated libcoro with a workaround for OS X,
89 pach and testing by Michael Schwern.
90
91 2.0 Tue Oct 24 05:47:17 CEST 2006
92 - support additional aio requests in Coro::AIO.
93
94 1.9 (never properly released due to a glitch)
95
96 1.8 Thu Feb 2 00:59:06 CET 2006
97 - applied suggested patch by SAMV to avoid problems during stupid
98 mark & sweep gc run.
99 - applied patch by Scott Walters for 5.9.3 compatibility.
100
101 1.7 Tue Dec 27 01:41:58 CET 2005
102 - added Coro::AIO, a thin wrapper around IO::AIO.
103 - improved Makefile.PL explanations.
104
105 1.6 Mon Dec 12 21:30:05 CET 2005
106 - additionally save PM_curpm might fix as-of-yet
107 unseen problems with regex matches being attributed to the
108 wrong package.
109 - add t/10_bugs.t, which currently checks against imho broken
110 perls that use 0.26MB of stack space per Perl_magic_get
111 invocation (newer linuxes) as opposed to the 0.0002MB perl
112 normally uses.
113 - make stacksize configurable for the ultimate debian experience.
114
115 1.51 Mon Dec 12 18:48:36 CET 2005
116 - remove debugging warn() accidentally left in Coro::Select.
117
118 1.5 Tue Nov 29 13:32:44 CET 2005
119 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
120 - fix Coro::Select 'select'.
121 - strict'ify some modules.
122 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
123 - use XSLoader in selected modules.
124 - remove some 5.6 compatibility cruft.
125
126 1.4 Tue Sep 6 00:11:05 CEST 2005
127 - libcoro did not take into account the trampoline on amd64,
128 when 'l'inux method was used.
129
130 1.31 Tue Aug 30 23:31:33 CEST 2005
131 - some portability fixes/workarounds.
132
133 1.3 Sat Aug 20 03:08:56 CEST 2005
134 - no code changes. module seems to work fine.
135 - improve Coro::State docs, remove reference to nonexisting
136 Coro::State::flush method.
137 - no longer autodetect windows, present it as an option instead.
138
139 1.2 Mon May 16 02:00:55 CEST 2005
140 - included libcoro.c earlier in State.xs, might improve portability.
141 - use a faster and possibly more stable Coro::Cont implementation.
142 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
143 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
144 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
145
146 1.11 Thu Mar 3 18:00:52 CET 2005
147 - change of contact address.
148
149 1.1 Tue Feb 22 20:51:16 CET 2005
150 - support [l]inux method on amd64.
151 - allow some context switches while compiling/eval'ing.
152
153 1.0 Tue Aug 10 03:47:27 CEST 2004
154 - Event 0.89 fixes the bug again.
155 - fix the remaining(??) memleak. I didn't free the cache-AV for
156 padlists, so one AV per created anon-sub leaked.
157
158 0.97 Fri May 14 15:23:32 CEST 2004
159 - remove stupid gcc extension that was an experiment only anyway.
160
161 0.96 Thu May 13 18:09:29 CEST 2004
162 - tell people if they have yet another broken Event variant.
163 - made Coro to work _better_ with threads (it seems that, as long
164 as you use Coros in one thread only everything will work fine.
165 Looking at the perl source the problem might be missing locking
166 between Coro and some perl internal routines. That's not easily
167 fixable).
168 - (hopefully) got rid of the static xnext inside transfer.
169
170 0.95 Sun Feb 15 03:20:28 CET 2004
171 - removed Coro::State::flush, implemented a new and much
172 faster caching mechanism by attaching magic to the CV.
173 - a memleak with (real) closures remains.
174 - dramatically reduced size of stacks to 65536 (linux/x86), after
175 observing that even myhttpd never had more than a kilobyte
176 of stack in use (stack is still only physically allocated in
177 pagesize increments for systems suporting mmap).
178 - fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
179 - fix for threaded perl.
180
181 0.9 Sun Nov 23 04:32:39 CET 2003
182 - fix a few very hard to track down but (of course) stupid
183 memory leaks.
184 - stringify version number to avoid locale problems :(.
185 - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
186 hopefully ignoring it "just works".
187
188 0.8 Wed Nov 5 19:38:40 CET 2003
189 - port to perl5.005_03, but only 5.8.x+ is supported!
190 - honor LocalAddr even without LocalPort in Coro::Socket.
191
192 0.7 Tue May 27 03:12:38 CEST 2003
193 - the version jump indicates some level of testing, not gobs
194 of new features.
195 - uh... I found the prompt function in ExtUtils::MakeMaker.
196 Highly correct stuff, that is...
197 - fixed(?) a bug with die's in coroutines causing "panic: top_env".
198 the fix is not well understood by the author, so beware :(.
199
200 0.652 Thu May 8 02:54:46 CEST 2003
201 - Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
202 cause version 4 doesn't have ucontext.
203 - Benjamin Reed reported that setjmp works fine on darwin,
204 so preselect it.
205
206 0.651 Sat Mar 29 15:00:23 CET 2003
207 - fix a bug in Coro::Handle where some bytes could get lost
208 on reading, reported by jason@nichego.net.
209
210 0.65 Sun Mar 23 00:08:26 CET 2003
211 - added a README.linux-glibc.
212 - new module Coro::Select.
213 - also save/restore PL_comppad, fixes segfaults with 5.8.1.
214 (I never claimed that I know what I am doing ;).
215 - set default to setjmp/longjmp on non-x86-linux.
216
217 0.6 Thu Nov 21 11:09:06 CET 2002
218 - made lazy context switching the default.
219 - fixed the bug where SemaphoreSet::guard
220 was the same as timed_guard and timed_guard was missing.
221 - fix a memleak in Coro::Timer.
222 - reclassified context sharing as not experimental.
223
224 0.534 Sun Apr 14 03:05:12 CEST 2002
225 - fixed backspace => tab in header parsing (myhttpd).
226 - added eg/readline, for elmex.
227 - Coro::Event now calls ->start on first call instead of
228 ->again, which created wrong timeouts for the first ->next.
229 - fixed a bug where Coro::Socket returned a closed socket instead
230 of nothing on ECONNREFUSED and similar error conditions.
231
232 0.533 Mon Feb 18 18:49:40 CET 2002
233 - adapt to finally working Event-0.85.
234 - fixed buggy event initialization (trapped under windows, but how
235 could it possibly have worked anywhere?)
236
237 0.532 Wed Jan 16 02:45:32 CET 2002
238 - removed the reference to pp_entersub, might work on
239 (some) win32 perls now (testsuite works under cygwin,
240 without Event, which freezes).
241
242 0.531 Mon Dec 10 22:18:44 CET 2001
243 - Fixed a bug in SemaphoreSet::timed_down.
244
245 0.53 Tue Nov 27 21:11:13 CET 2001
246 - some tests for Event.
247 - slightly different internal architecture to get refcnt into the object
248 and not the reference. might fix a few bugs, certainly did introduce
249 new ones.
250 - Coro::Timer (independent of Event).
251 - new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
252
253 0.52 Tue Nov 6 21:36:18 CET 2001
254 - ported to cygwin (trivial).
255 patch by Gerrit P. Haase <gp@familiehaase.de>.
256 - small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
257
258 0.51 Thu Nov 1 20:39:01 CET 2001
259 - terminate/cancel now work properly (otherwise termination
260 could cause a "next coroutine is not and contains not..."
261 error.
262 - added Coro::Socket::shutdown.
263 - Coro::Event::loop no is the same as Event::loop.
264 - implemented terminate with args + join.
265
266 0.5 Fri Sep 28 16:15:35 CEST 2001
267 - fixed "print" on a Coro::Handle. The print method worked.
268 - small tweaks (seem to reduce memory consumption a lot)
269 in various modules.
270 - splendid use of "no warnings" scattered throughout.
271 - added Coro::Handle::rbuf, fixed Coro::Handle::fh.
272
273 0.49 Sun Sep 16 02:42:45 CEST 2001
274 - changed some method calls to function calls for speed
275 inside Coro::Handle.
276 - make Coro::Handle use an array instead of a hash for
277 speed reasons.
278 - IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
279 sjlj and ucontext should now work.
280 - IRIX-specific port for libcoro.
281 - swapped order of accept results to match IO::Socket.
282 - changed getsock/peername to sock/peername to match IO::Socket.
283 - fixed a bug that caused segfault when returning to main task
284 under some circumstances.
285 - other bugfixes.
286
287 0.45 Sun Sep 2 02:54:01 CEST 2001
288 - new method Coro::Handle::timeout.
289 - corrected speling of set...name to get...name in Coro::Socket.
290 - Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
291 - Coro::Handle now supports fileno and FILENO.
292 - added eg/myhttpd, a web server.
293 - Coro::Socket now accepts numeric ports as well as "port(number)"
294 syntax.
295 - moved some scheduling primitives into xs code. more to come.
296 - new simple priority system.
297 - implemented Coro::Event using XS, almost four times faster!
298 - small memory corruption problem fixed (boy that was difficult).
299
300 0.13 Wed Aug 8 16:53:07 CEST 2001
301 - new method Coro::Handle::readline.
302 - added eg/lwp and Coro::Handle::autoflush, to make LWP work.
303 (see eg/lwp on how to make LWP non-blocking).
304 - renamed Coro::Socket::new_inet to new.
305 - added Coro::Util, some utility functions.
306 - die/eval now works better (still get annoying (but true ;)
307 "Callback called exit" messages).
308 - Coro::Handle now supports timeout, and Coro::Socket Timeout.
309 - much better Coro::Socket support.
310
311 0.12 Fri Jul 27 04:19:01 CEST 2001
312 - do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
313 - very experimental stack sharing algorithm. not 100% safe but
314 should work well in practise ;)
315 - added Coro::RWLock.
316 - Coro::Specific now works.
317
318 0.11 Tue Jul 24 22:49:21 CEST 2001
319 - added specialized hack for newer and older linux versions (fast).
320 - renamed Coro::Event::IO to Coro::Handle.
321 - new module Coro::Socket.
322
323 0.1 Tue Jul 24 01:47:53 CEST 2001
324 - release candidate 3. A rather new internal structure :(
325 - the great renaming: Damian Conway gave me a suitable replacement
326 for yield.
327 - added Coro/libcoro, a portable coroutine implementation for C
328 (not even perl-dependent!!!), which can be used by Coro::State.
329 - renamed SAVE_DEFSV (on xs-level only) to avoid symbol clash in
330 perl-5.6.
331 - new function Coro::Event::idle.
332 - the idle process is now overriden
333 by default in Coro::Event.
334 - Coro::Channel now enforces the size.
335 - canceling events now works in all cases.
336 - Coro state now include $_ and $@.
337 - yet another bug workaround that I do not really understand :(
338 - new module Coro::Event::IO (very undocumented) to do
339 non-blocking i/o.
340 - performance tuning.
341
342 0.08 Thu Jul 19 06:13:25 CEST 2001
343 - release candidate 2 (new functionality).
344 - add Coro::State::flush function.
345 - transfer now supports a flags value (mostly for speed ATM).
346 - might compile and work in the presence of threads now.
347 - continuations have a saner syntax.
348 - no more memleaks.
349
350 0.07 Tue Jul 17 17:40:18 CEST 2001
351 - release candidate 1 ;)
352 - slightly nicer code.
353 - fixed a scheduling bug in Coro::Event.
354
355 0.06 Tue Jul 17 04:23:24 CEST 2001
356 - ok, I found the showstopper - the same sub must not be
357 re-entered in two different coroutines, otherwise => crash. I
358 see no easy solution to this problem, except by walking the call
359 chaing and saving/restoring the cv's, which is what I do now.
360 - memory leaks still latent, especially at thread termination.
361 - Coro::Event now works (haha).
362
363 0.05 Sun Jul 15 17:32:20 CEST 2001
364 - fixed a few issues in Coro::Event.
365 - I forgot to include Coro::Event in 0.04 :(:(:(
366
367 0.04 Sun Jul 15 05:24:59 CEST 2001
368 - @_ is now properly localized.
369 - Coro::State is now easier subclassable.
370 - Coro::Cont now coroutine-aware.
371 - Coro::Specific is a low-overhead module to create
372 coroutine-specific vars.
373 - Coro::Event provides a simple interface to Event.
374
375 0.03 Fri Jul 13 14:51:52 CEST 2001
376 - transfer() now implemented in XS (beware).
377 - new module Coro::Cont for really faked continuations.
378 - big internal architecture changes: Coro::State is now
379 really low-level and can thus be used to implement other
380 interesting things, While "Coro::" implements a process-like
381 model. Still crude and subject to change.
382 - $_ and $@ are no longer being localized.
383
384 0.02 Tue Jul 10 01:38:17 CEST 2001
385 - implemented "async" attribute.
386 - $_ and $@ are now localized.
387 - added Coro::Channel.
388 - more testcases, still no docs.
389
390 0.01 Tue Jul 3 02:18:41 CEST 2001
391 - original version; copied from Convert::Scalar.
392