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Revision: 1.192
Committed: Thu Jan 4 23:49:27 2007 UTC (17 years, 4 months ago) by root
Branch: MAIN
Changes since 1.191: +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: 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 - fix various large and small memleaks.
15 - use a (hopefully) more stable cancel implementation
16 that immediately frees the coroutine data.
17 - added Coro::guard function.
18
19 3.2 Fri Dec 22 05:07:09 CET 2006
20 - improve portability to slightly older perls.
21 - use cleaner coroutine destruction.
22 - simplify configuration for users.
23 - optionally (unrecommended) prefer perl functions over
24 their coro replacements.
25
26 3.11 Tue Dec 5 13:11:24 CET 2006
27 - fixed some bogus assert's, but as perl.h disables assert even
28 without NDEBUG (thank you very much), not too many people should
29 notice (that did include myself). Andreas König noticed, though :)
30 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
31 it. Also noticed by Andreas König :)
32 - save/restore tainted status.
33 - verified to pass the testsuite on my 5.9.5.
34
35 3.1 Mon Dec 4 23:03:40 CET 2006
36 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
37 - incompatible change: transfer flags are now per-state.
38 - give a better error message on deadlock.
39 - document Coro::nready.
40 - enhanced testsuite.
41
42 3.01 Sun Dec 3 23:47:42 CET 2006
43 - forgot to include Coro::Timer.
44
45 3.0 Sun Dec 3 22:57:25 CET 2006
46 - the "FINALLY COMPLETELY STABLE" release (coming soon:
47 the "FAMOUS LAST WORDS" release).
48 - implement a new stack sharing algorithm, which uses a stack
49 pool (size currently hardcoded).
50 - make stack sharing mandatory (it no longer uses a heuristic).
51 - eval/die no longer cause weird problems under heavy use.
52 - Coro::Event could cause livelocks if it was used but
53 no Coro::Event watchers were used.
54 - Coro::Event now uses asynccheck as prepare does not
55 check for changed watchers.
56 - Coro::Event allows multiple waiting coros and will wake up one
57 per event.
58 - Coro::Event should be cleaner and more efficient now.
59 - new utility function Coro::unblock_sub.
60 - document the sad fact that Event is no longer reentrant.
61 - putting a coroutine into the ready queue twice could under
62 some circumstances lead to stack corruption.
63 - minor incompatibility: subclassing Coro::State is supported
64 directly now without going through a _coro_state member.
65 - state/coro switching is much faster now.
66 - very minor optimisations and code/documentation cleanup.
67 - avoid problems due to compiler inlining.
68 - removed timers from Coro::Timer -> use AnyEvent instead.
69 - replaced Coro::idle coroutine by (cleaner) idle handler.
70 - updated to newest libcoro.
71 - implement enhanced support for valgrind.
72 - implement is_ready and return value for ready.
73 - removed Coro::Cont, it was a misnomer (it's generators),
74 and it was somewhat annoying to get it right. Will come back
75 if somebody asks for it :)
76 - many ->wait methods and Coro::Event could return
77 spuriously without the event having happened.
78
79 2.5 Tue Nov 7 12:22:33 CET 2006
80 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
81 use AnyEvent, moved them to Coro/.
82 - added Coro::LWP which contains all the uglyness required to
83 make LWP non-blocking.
84 - should work with perl 5.9.x now (Andreas König made me do it).
85 - fixed another bug in Coro::Select when the timeout was undef.
86 - reuse PL_start_env for all coros, saves some memory per coroutine.
87 - manage PL_top_env differently, hopefully to avoid panic: top_env.
88 - timeout argument was not properly used in Coro::Socket.
89 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
90 - emulate undocumented(!) functionality of IO::Socket required
91 by LWP(!!).
92 - updated eg/lwp to work with newer lwp's.
93 - remove "FATAL: uncaught exception" prefix. Coroutines that die
94 kill the whole process, just as exceptions in the main "coroutine"
95 did already.
96
97 2.1 Wed Nov 1 23:01:13 CET 2006
98 - fix a long-standing bug in Coro::Select where select with
99 zero timeout would instead change the current default filehandle.
100 - use a simpler and hopefully more robust way to clone padlists
101 (uses less memory and a perl function instead of our own).
102 - coro can now create a stack guard area on many architectures.
103 - Coro::AIO properly reexports additional functions from IO::AIO.
104 - updated libcoro with a workaround for OS X,
105 pach and testing by Michael Schwern.
106
107 2.0 Tue Oct 24 05:47:17 CEST 2006
108 - support additional aio requests in Coro::AIO.
109
110 1.9 (never properly released due to a glitch)
111
112 1.8 Thu Feb 2 00:59:06 CET 2006
113 - applied suggested patch by SAMV to avoid problems during stupid
114 mark & sweep gc run.
115 - applied patch by Scott Walters for 5.9.3 compatibility.
116
117 1.7 Tue Dec 27 01:41:58 CET 2005
118 - added Coro::AIO, a thin wrapper around IO::AIO.
119 - improved Makefile.PL explanations.
120
121 1.6 Mon Dec 12 21:30:05 CET 2005
122 - additionally save PM_curpm might fix as-of-yet
123 unseen problems with regex matches being attributed to the
124 wrong package.
125 - add t/10_bugs.t, which currently checks against imho broken
126 perls that use 0.26MB of stack space per Perl_magic_get
127 invocation (newer linuxes) as opposed to the 0.0002MB perl
128 normally uses.
129 - make stacksize configurable for the ultimate debian experience.
130
131 1.51 Mon Dec 12 18:48:36 CET 2005
132 - remove debugging warn() accidentally left in Coro::Select.
133
134 1.5 Tue Nov 29 13:32:44 CET 2005
135 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
136 - fix Coro::Select 'select'.
137 - strict'ify some modules.
138 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
139 - use XSLoader in selected modules.
140 - remove some 5.6 compatibility cruft.
141
142 1.4 Tue Sep 6 00:11:05 CEST 2005
143 - libcoro did not take into account the trampoline on amd64,
144 when 'l'inux method was used.
145
146 1.31 Tue Aug 30 23:31:33 CEST 2005
147 - some portability fixes/workarounds.
148
149 1.3 Sat Aug 20 03:08:56 CEST 2005
150 - no code changes. module seems to work fine.
151 - improve Coro::State docs, remove reference to nonexisting
152 Coro::State::flush method.
153 - no longer autodetect windows, present it as an option instead.
154
155 1.2 Mon May 16 02:00:55 CEST 2005
156 - included libcoro.c earlier in State.xs, might improve portability.
157 - use a faster and possibly more stable Coro::Cont implementation.
158 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
159 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
160 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
161
162 1.11 Thu Mar 3 18:00:52 CET 2005
163 - change of contact address.
164
165 1.1 Tue Feb 22 20:51:16 CET 2005
166 - support [l]inux method on amd64.
167 - allow some context switches while compiling/eval'ing.
168
169 1.0 Tue Aug 10 03:47:27 CEST 2004
170 - Event 0.89 fixes the bug again.
171 - fix the remaining(??) memleak. I didn't free the cache-AV for
172 padlists, so one AV per created anon-sub leaked.
173
174 0.97 Fri May 14 15:23:32 CEST 2004
175 - remove stupid gcc extension that was an experiment only anyway.
176
177 0.96 Thu May 13 18:09:29 CEST 2004
178 - tell people if they have yet another broken Event variant.
179 - made Coro to work _better_ with threads (it seems that, as long
180 as you use Coros in one thread only everything will work fine.
181 Looking at the perl source the problem might be missing locking
182 between Coro and some perl internal routines. That's not easily
183 fixable).
184 - (hopefully) got rid of the static xnext inside transfer.
185
186 0.95 Sun Feb 15 03:20:28 CET 2004
187 - removed Coro::State::flush, implemented a new and much
188 faster caching mechanism by attaching magic to the CV.
189 - a memleak with (real) closures remains.
190 - dramatically reduced size of stacks to 65536 (linux/x86), after
191 observing that even myhttpd never had more than a kilobyte
192 of stack in use (stack is still only physically allocated in
193 pagesize increments for systems suporting mmap).
194 - fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
195 - fix for threaded perl.
196
197 0.9 Sun Nov 23 04:32:39 CET 2003
198 - fix a few very hard to track down but (of course) stupid
199 memory leaks.
200 - stringify version number to avoid locale problems :(.
201 - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
202 hopefully ignoring it "just works".
203
204 0.8 Wed Nov 5 19:38:40 CET 2003
205 - port to perl5.005_03, but only 5.8.x+ is supported!
206 - honor LocalAddr even without LocalPort in Coro::Socket.
207
208 0.7 Tue May 27 03:12:38 CEST 2003
209 - the version jump indicates some level of testing, not gobs
210 of new features.
211 - uh... I found the prompt function in ExtUtils::MakeMaker.
212 Highly correct stuff, that is...
213 - fixed(?) a bug with die's in coroutines causing "panic: top_env".
214 the fix is not well understood by the author, so beware :(.
215
216 0.652 Thu May 8 02:54:46 CEST 2003
217 - Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
218 cause version 4 doesn't have ucontext.
219 - Benjamin Reed reported that setjmp works fine on darwin,
220 so preselect it.
221
222 0.651 Sat Mar 29 15:00:23 CET 2003
223 - fix a bug in Coro::Handle where some bytes could get lost
224 on reading, reported by jason@nichego.net.
225
226 0.65 Sun Mar 23 00:08:26 CET 2003
227 - added a README.linux-glibc.
228 - new module Coro::Select.
229 - also save/restore PL_comppad, fixes segfaults with 5.8.1.
230 (I never claimed that I know what I am doing ;).
231 - set default to setjmp/longjmp on non-x86-linux.
232
233 0.6 Thu Nov 21 11:09:06 CET 2002
234 - made lazy context switching the default.
235 - fixed the bug where SemaphoreSet::guard
236 was the same as timed_guard and timed_guard was missing.
237 - fix a memleak in Coro::Timer.
238 - reclassified context sharing as not experimental.
239
240 0.534 Sun Apr 14 03:05:12 CEST 2002
241 - fixed backspace => tab in header parsing (myhttpd).
242 - added eg/readline, for elmex.
243 - Coro::Event now calls ->start on first call instead of
244 ->again, which created wrong timeouts for the first ->next.
245 - fixed a bug where Coro::Socket returned a closed socket instead
246 of nothing on ECONNREFUSED and similar error conditions.
247
248 0.533 Mon Feb 18 18:49:40 CET 2002
249 - adapt to finally working Event-0.85.
250 - fixed buggy event initialization (trapped under windows, but how
251 could it possibly have worked anywhere?)
252
253 0.532 Wed Jan 16 02:45:32 CET 2002
254 - removed the reference to pp_entersub, might work on
255 (some) win32 perls now (testsuite works under cygwin,
256 without Event, which freezes).
257
258 0.531 Mon Dec 10 22:18:44 CET 2001
259 - Fixed a bug in SemaphoreSet::timed_down.
260
261 0.53 Tue Nov 27 21:11:13 CET 2001
262 - some tests for Event.
263 - slightly different internal architecture to get refcnt into the object
264 and not the reference. might fix a few bugs, certainly did introduce
265 new ones.
266 - Coro::Timer (independent of Event).
267 - new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
268
269 0.52 Tue Nov 6 21:36:18 CET 2001
270 - ported to cygwin (trivial).
271 patch by Gerrit P. Haase <gp@familiehaase.de>.
272 - small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
273
274 0.51 Thu Nov 1 20:39:01 CET 2001
275 - terminate/cancel now work properly (otherwise termination
276 could cause a "next coroutine is not and contains not..."
277 error.
278 - added Coro::Socket::shutdown.
279 - Coro::Event::loop no is the same as Event::loop.
280 - implemented terminate with args + join.
281
282 0.5 Fri Sep 28 16:15:35 CEST 2001
283 - fixed "print" on a Coro::Handle. The print method worked.
284 - small tweaks (seem to reduce memory consumption a lot)
285 in various modules.
286 - splendid use of "no warnings" scattered throughout.
287 - added Coro::Handle::rbuf, fixed Coro::Handle::fh.
288
289 0.49 Sun Sep 16 02:42:45 CEST 2001
290 - changed some method calls to function calls for speed
291 inside Coro::Handle.
292 - make Coro::Handle use an array instead of a hash for
293 speed reasons.
294 - IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
295 sjlj and ucontext should now work.
296 - IRIX-specific port for libcoro.
297 - swapped order of accept results to match IO::Socket.
298 - changed getsock/peername to sock/peername to match IO::Socket.
299 - fixed a bug that caused segfault when returning to main task
300 under some circumstances.
301 - other bugfixes.
302
303 0.45 Sun Sep 2 02:54:01 CEST 2001
304 - new method Coro::Handle::timeout.
305 - corrected speling of set...name to get...name in Coro::Socket.
306 - Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
307 - Coro::Handle now supports fileno and FILENO.
308 - added eg/myhttpd, a web server.
309 - Coro::Socket now accepts numeric ports as well as "port(number)"
310 syntax.
311 - moved some scheduling primitives into xs code. more to come.
312 - new simple priority system.
313 - implemented Coro::Event using XS, almost four times faster!
314 - small memory corruption problem fixed (boy that was difficult).
315
316 0.13 Wed Aug 8 16:53:07 CEST 2001
317 - new method Coro::Handle::readline.
318 - added eg/lwp and Coro::Handle::autoflush, to make LWP work.
319 (see eg/lwp on how to make LWP non-blocking).
320 - renamed Coro::Socket::new_inet to new.
321 - added Coro::Util, some utility functions.
322 - die/eval now works better (still get annoying (but true ;)
323 "Callback called exit" messages).
324 - Coro::Handle now supports timeout, and Coro::Socket Timeout.
325 - much better Coro::Socket support.
326
327 0.12 Fri Jul 27 04:19:01 CEST 2001
328 - do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
329 - very experimental stack sharing algorithm. not 100% safe but
330 should work well in practise ;)
331 - added Coro::RWLock.
332 - Coro::Specific now works.
333
334 0.11 Tue Jul 24 22:49:21 CEST 2001
335 - added specialized hack for newer and older linux versions (fast).
336 - renamed Coro::Event::IO to Coro::Handle.
337 - new module Coro::Socket.
338
339 0.1 Tue Jul 24 01:47:53 CEST 2001
340 - release candidate 3. A rather new internal structure :(
341 - the great renaming: Damian Conway gave me a suitable replacement
342 for yield.
343 - added Coro/libcoro, a portable coroutine implementation for C
344 (not even perl-dependent!!!), which can be used by Coro::State.
345 - renamed SAVE_DEFSV (on xs-level only) to avoid symbol clash in
346 perl-5.6.
347 - new function Coro::Event::idle.
348 - the idle process is now overriden
349 by default in Coro::Event.
350 - Coro::Channel now enforces the size.
351 - canceling events now works in all cases.
352 - Coro state now include $_ and $@.
353 - yet another bug workaround that I do not really understand :(
354 - new module Coro::Event::IO (very undocumented) to do
355 non-blocking i/o.
356 - performance tuning.
357
358 0.08 Thu Jul 19 06:13:25 CEST 2001
359 - release candidate 2 (new functionality).
360 - add Coro::State::flush function.
361 - transfer now supports a flags value (mostly for speed ATM).
362 - might compile and work in the presence of threads now.
363 - continuations have a saner syntax.
364 - no more memleaks.
365
366 0.07 Tue Jul 17 17:40:18 CEST 2001
367 - release candidate 1 ;)
368 - slightly nicer code.
369 - fixed a scheduling bug in Coro::Event.
370
371 0.06 Tue Jul 17 04:23:24 CEST 2001
372 - ok, I found the showstopper - the same sub must not be
373 re-entered in two different coroutines, otherwise => crash. I
374 see no easy solution to this problem, except by walking the call
375 chaing and saving/restoring the cv's, which is what I do now.
376 - memory leaks still latent, especially at thread termination.
377 - Coro::Event now works (haha).
378
379 0.05 Sun Jul 15 17:32:20 CEST 2001
380 - fixed a few issues in Coro::Event.
381 - I forgot to include Coro::Event in 0.04 :(:(:(
382
383 0.04 Sun Jul 15 05:24:59 CEST 2001
384 - @_ is now properly localized.
385 - Coro::State is now easier subclassable.
386 - Coro::Cont now coroutine-aware.
387 - Coro::Specific is a low-overhead module to create
388 coroutine-specific vars.
389 - Coro::Event provides a simple interface to Event.
390
391 0.03 Fri Jul 13 14:51:52 CEST 2001
392 - transfer() now implemented in XS (beware).
393 - new module Coro::Cont for really faked continuations.
394 - big internal architecture changes: Coro::State is now
395 really low-level and can thus be used to implement other
396 interesting things, While "Coro::" implements a process-like
397 model. Still crude and subject to change.
398 - $_ and $@ are no longer being localized.
399
400 0.02 Tue Jul 10 01:38:17 CEST 2001
401 - implemented "async" attribute.
402 - $_ and $@ are now localized.
403 - added Coro::Channel.
404 - more testcases, still no docs.
405
406 0.01 Tue Jul 3 02:18:41 CEST 2001
407 - original version; copied from Convert::Scalar.
408