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Revision: 1.175
Committed: Mon Dec 4 13:47:56 2006 UTC (17 years, 5 months ago) by root
Branch: MAIN
Changes since 1.174: +3 -0 lines
Log Message:
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File Contents

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