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Revision: 1.173
Committed: Mon Dec 4 03:48:16 2006 UTC (17 years, 5 months ago) by root
Branch: MAIN
Changes since 1.172: +4 -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 - give a better error message on deadlock.
8
9 3.01 Sun Dec 3 23:47:42 CET 2006
10 - forgot to include Coro::Timer.
11
12 3.0 Sun Dec 3 22:57:25 CET 2006
13 - the "FINALLY COMPLETELY STABLE" release (coming soon:
14 the "FAMOUS LAST WORDS" release).
15 - implement a new stack sharing algorithm, which uses a stack
16 pool (size currently hardcoded).
17 - make stack sharing mandatory (it no longer uses a heuristic).
18 - eval/die no longer cause weird problems under heavy use.
19 - Coro::Event could cause livelocks if it was used but
20 no Coro::Event watchers were used.
21 - Coro::Event now uses asynccheck as prepare does not
22 check for changed watchers.
23 - Coro::Event allows multiple waiting coros and will wake up one
24 per event.
25 - Coro::Event should be cleaner and more efficient now.
26 - new utility function Coro::unblock_sub.
27 - document the sad fact that Event is no longer reentrant.
28 - putting a coroutine into the ready queue twice could under
29 some circumstances lead to stack corruption.
30 - minor incompatibility: subclassing Coro::State is supported
31 directly now without going through a _coro_state member.
32 - state/coro switching is much faster now.
33 - very minor optimisations and code/documentation cleanup.
34 - avoid problems due to compiler inlining.
35 - removed timers from Coro::Timer -> use AnyEvent instead.
36 - replaced Coro::idle coroutine by (cleaner) idle handler.
37 - updated to newest libcoro.
38 - implement enhanced support for valgrind.
39 - implement is_ready and return value for ready.
40 - removed Coro::Cont, it was a misnomer (it's generators),
41 and it was somewhat annoying to get it right. Will come back
42 if somebody asks for it :)
43 - many ->wait methods and Coro::Event could return
44 spuriously without the event having happened.
45
46 2.5 Tue Nov 7 12:22:33 CET 2006
47 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
48 use AnyEvent, moved them to Coro/.
49 - added Coro::LWP which contains all the uglyness required to
50 make LWP non-blocking.
51 - should work with perl 5.9.x now (Andreas König made me do it).
52 - fixed another bug in Coro::Select when the timeout was undef.
53 - reuse PL_start_env for all coros, saves some memory per coroutine.
54 - manage PL_top_env differently, hopefully to avoid panic: top_env.
55 - timeout argument was not properly used in Coro::Socket.
56 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
57 - emulate undocumented(!) functionality of IO::Socket required
58 by LWP(!!).
59 - updated eg/lwp to work with newer lwp's.
60 - remove "FATAL: uncaught exception" prefix. Coroutines that die
61 kill the whole process, just as exceptions in the main "coroutine"
62 did already.
63
64 2.1 Wed Nov 1 23:01:13 CET 2006
65 - fix a long-standing bug in Coro::Select where select with
66 zero timeout would instead change the current default filehandle.
67 - use a simpler and hopefully more robust way to clone padlists
68 (uses less memory and a perl function instead of our own).
69 - coro can now create a stack guard area on many architectures.
70 - Coro::AIO properly reexports additional functions from IO::AIO.
71 - updated libcoro with a workaround for OS X,
72 pach and testing by Michael Schwern.
73
74 2.0 Tue Oct 24 05:47:17 CEST 2006
75 - support additional aio requests in Coro::AIO.
76
77 1.9 (never properly released due to a glitch)
78
79 1.8 Thu Feb 2 00:59:06 CET 2006
80 - applied suggested patch by SAMV to avoid problems during stupid
81 mark & sweep gc run.
82 - applied patch by Scott Walters for 5.9.3 compatibility.
83
84 1.7 Tue Dec 27 01:41:58 CET 2005
85 - added Coro::AIO, a thin wrapper around IO::AIO.
86 - improved Makefile.PL explanations.
87
88 1.6 Mon Dec 12 21:30:05 CET 2005
89 - additionally save PM_curpm might fix as-of-yet
90 unseen problems with regex matches being attributed to the
91 wrong package.
92 - add t/10_bugs.t, which currently checks against imho broken
93 perls that use 0.26MB of stack space per Perl_magic_get
94 invocation (newer linuxes) as opposed to the 0.0002MB perl
95 normally uses.
96 - make stacksize configurable for the ultimate debian experience.
97
98 1.51 Mon Dec 12 18:48:36 CET 2005
99 - remove debugging warn() accidentally left in Coro::Select.
100
101 1.5 Tue Nov 29 13:32:44 CET 2005
102 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
103 - fix Coro::Select 'select'.
104 - strict'ify some modules.
105 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
106 - use XSLoader in selected modules.
107 - remove some 5.6 compatibility cruft.
108
109 1.4 Tue Sep 6 00:11:05 CEST 2005
110 - libcoro did not take into account the trampoline on amd64,
111 when 'l'inux method was used.
112
113 1.31 Tue Aug 30 23:31:33 CEST 2005
114 - some portability fixes/workarounds.
115
116 1.3 Sat Aug 20 03:08:56 CEST 2005
117 - no code changes. module seems to work fine.
118 - improve Coro::State docs, remove reference to nonexisting
119 Coro::State::flush method.
120 - no longer autodetect windows, present it as an option instead.
121
122 1.2 Mon May 16 02:00:55 CEST 2005
123 - included libcoro.c earlier in State.xs, might improve portability.
124 - use a faster and possibly more stable Coro::Cont implementation.
125 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
126 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
127 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
128
129 1.11 Thu Mar 3 18:00:52 CET 2005
130 - change of contact address.
131
132 1.1 Tue Feb 22 20:51:16 CET 2005
133 - support [l]inux method on amd64.
134 - allow some context switches while compiling/eval'ing.
135
136 1.0 Tue Aug 10 03:47:27 CEST 2004
137 - Event 0.89 fixes the bug again.
138 - fix the remaining(??) memleak. I didn't free the cache-AV for
139 padlists, so one AV per created anon-sub leaked.
140
141 0.97 Fri May 14 15:23:32 CEST 2004
142 - remove stupid gcc extension that was an experiment only anyway.
143
144 0.96 Thu May 13 18:09:29 CEST 2004
145 - tell people if they have yet another broken Event variant.
146 - made Coro to work _better_ with threads (it seems that, as long
147 as you use Coros in one thread only everything will work fine.
148 Looking at the perl source the problem might be missing locking
149 between Coro and some perl internal routines. That's not easily
150 fixable).
151 - (hopefully) got rid of the static xnext inside transfer.
152
153 0.95 Sun Feb 15 03:20:28 CET 2004
154 - removed Coro::State::flush, implemented a new and much
155 faster caching mechanism by attaching magic to the CV.
156 - a memleak with (real) closures remains.
157 - dramatically reduced size of stacks to 65536 (linux/x86), after
158 observing that even myhttpd never had more than a kilobyte
159 of stack in use (stack is still only physically allocated in
160 pagesize increments for systems suporting mmap).
161 - fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
162 - fix for threaded perl.
163
164 0.9 Sun Nov 23 04:32:39 CET 2003
165 - fix a few very hard to track down but (of course) stupid
166 memory leaks.
167 - stringify version number to avoid locale problems :(.
168 - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
169 hopefully ignoring it "just works".
170
171 0.8 Wed Nov 5 19:38:40 CET 2003
172 - port to perl5.005_03, but only 5.8.x+ is supported!
173 - honor LocalAddr even without LocalPort in Coro::Socket.
174
175 0.7 Tue May 27 03:12:38 CEST 2003
176 - the version jump indicates some level of testing, not gobs
177 of new features.
178 - uh... I found the prompt function in ExtUtils::MakeMaker.
179 Highly correct stuff, that is...
180 - fixed(?) a bug with die's in coroutines causing "panic: top_env".
181 the fix is not well understood by the author, so beware :(.
182
183 0.652 Thu May 8 02:54:46 CEST 2003
184 - Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
185 cause version 4 doesn't have ucontext.
186 - Benjamin Reed reported that setjmp works fine on darwin,
187 so preselect it.
188
189 0.651 Sat Mar 29 15:00:23 CET 2003
190 - fix a bug in Coro::Handle where some bytes could get lost
191 on reading, reported by jason@nichego.net.
192
193 0.65 Sun Mar 23 00:08:26 CET 2003
194 - added a README.linux-glibc.
195 - new module Coro::Select.
196 - also save/restore PL_comppad, fixes segfaults with 5.8.1.
197 (I never claimed that I know what I am doing ;).
198 - set default to setjmp/longjmp on non-x86-linux.
199
200 0.6 Thu Nov 21 11:09:06 CET 2002
201 - made lazy context switching the default.
202 - fixed the bug where SemaphoreSet::guard
203 was the same as timed_guard and timed_guard was missing.
204 - fix a memleak in Coro::Timer.
205 - reclassified context sharing as not experimental.
206
207 0.534 Sun Apr 14 03:05:12 CEST 2002
208 - fixed backspace => tab in header parsing (myhttpd).
209 - added eg/readline, for elmex.
210 - Coro::Event now calls ->start on first call instead of
211 ->again, which created wrong timeouts for the first ->next.
212 - fixed a bug where Coro::Socket returned a closed socket instead
213 of nothing on ECONNREFUSED and similar error conditions.
214
215 0.533 Mon Feb 18 18:49:40 CET 2002
216 - adapt to finally working Event-0.85.
217 - fixed buggy event initialization (trapped under windows, but how
218 could it possibly have worked anywhere?)
219
220 0.532 Wed Jan 16 02:45:32 CET 2002
221 - removed the reference to pp_entersub, might work on
222 (some) win32 perls now (testsuite works under cygwin,
223 without Event, which freezes).
224
225 0.531 Mon Dec 10 22:18:44 CET 2001
226 - Fixed a bug in SemaphoreSet::timed_down.
227
228 0.53 Tue Nov 27 21:11:13 CET 2001
229 - some tests for Event.
230 - slightly different internal architecture to get refcnt into the object
231 and not the reference. might fix a few bugs, certainly did introduce
232 new ones.
233 - Coro::Timer (independent of Event).
234 - new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
235
236 0.52 Tue Nov 6 21:36:18 CET 2001
237 - ported to cygwin (trivial).
238 patch by Gerrit P. Haase <gp@familiehaase.de>.
239 - small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
240
241 0.51 Thu Nov 1 20:39:01 CET 2001
242 - terminate/cancel now work properly (otherwise termination
243 could cause a "next coroutine is not and contains not..."
244 error.
245 - added Coro::Socket::shutdown.
246 - Coro::Event::loop no is the same as Event::loop.
247 - implemented terminate with args + join.
248
249 0.5 Fri Sep 28 16:15:35 CEST 2001
250 - fixed "print" on a Coro::Handle. The print method worked.
251 - small tweaks (seem to reduce memory consumption a lot)
252 in various modules.
253 - splendid use of "no warnings" scattered throughout.
254 - added Coro::Handle::rbuf, fixed Coro::Handle::fh.
255
256 0.49 Sun Sep 16 02:42:45 CEST 2001
257 - changed some method calls to function calls for speed
258 inside Coro::Handle.
259 - make Coro::Handle use an array instead of a hash for
260 speed reasons.
261 - IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
262 sjlj and ucontext should now work.
263 - IRIX-specific port for libcoro.
264 - swapped order of accept results to match IO::Socket.
265 - changed getsock/peername to sock/peername to match IO::Socket.
266 - fixed a bug that caused segfault when returning to main task
267 under some circumstances.
268 - other bugfixes.
269
270 0.45 Sun Sep 2 02:54:01 CEST 2001
271 - new method Coro::Handle::timeout.
272 - corrected speling of set...name to get...name in Coro::Socket.
273 - Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
274 - Coro::Handle now supports fileno and FILENO.
275 - added eg/myhttpd, a web server.
276 - Coro::Socket now accepts numeric ports as well as "port(number)"
277 syntax.
278 - moved some scheduling primitives into xs code. more to come.
279 - new simple priority system.
280 - implemented Coro::Event using XS, almost four times faster!
281 - small memory corruption problem fixed (boy that was difficult).
282
283 0.13 Wed Aug 8 16:53:07 CEST 2001
284 - new method Coro::Handle::readline.
285 - added eg/lwp and Coro::Handle::autoflush, to make LWP work.
286 (see eg/lwp on how to make LWP non-blocking).
287 - renamed Coro::Socket::new_inet to new.
288 - added Coro::Util, some utility functions.
289 - die/eval now works better (still get annoying (but true ;)
290 "Callback called exit" messages).
291 - Coro::Handle now supports timeout, and Coro::Socket Timeout.
292 - much better Coro::Socket support.
293
294 0.12 Fri Jul 27 04:19:01 CEST 2001
295 - do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
296 - very experimental stack sharing algorithm. not 100% safe but
297 should work well in practise ;)
298 - added Coro::RWLock.
299 - Coro::Specific now works.
300
301 0.11 Tue Jul 24 22:49:21 CEST 2001
302 - added specialized hack for newer and older linux versions (fast).
303 - renamed Coro::Event::IO to Coro::Handle.
304 - new module Coro::Socket.
305
306 0.1 Tue Jul 24 01:47:53 CEST 2001
307 - release candidate 3. A rather new internal structure :(
308 - the great renaming: Damian Conway gave me a suitable replacement
309 for yield.
310 - added Coro/libcoro, a portable coroutine implementation for C
311 (not even perl-dependent!!!), which can be used by Coro::State.
312 - renamed SAVE_DEFSV (on xs-level only) to avoid symbol clash in
313 perl-5.6.
314 - new function Coro::Event::idle.
315 - the idle process is now overriden
316 by default in Coro::Event.
317 - Coro::Channel now enforces the size.
318 - canceling events now works in all cases.
319 - Coro state now include $_ and $@.
320 - yet another bug workaround that I do not really understand :(
321 - new module Coro::Event::IO (very undocumented) to do
322 non-blocking i/o.
323 - performance tuning.
324
325 0.08 Thu Jul 19 06:13:25 CEST 2001
326 - release candidate 2 (new functionality).
327 - add Coro::State::flush function.
328 - transfer now supports a flags value (mostly for speed ATM).
329 - might compile and work in the presence of threads now.
330 - continuations have a saner syntax.
331 - no more memleaks.
332
333 0.07 Tue Jul 17 17:40:18 CEST 2001
334 - release candidate 1 ;)
335 - slightly nicer code.
336 - fixed a scheduling bug in Coro::Event.
337
338 0.06 Tue Jul 17 04:23:24 CEST 2001
339 - ok, I found the showstopper - the same sub must not be
340 re-entered in two different coroutines, otherwise => crash. I
341 see no easy solution to this problem, except by walking the call
342 chaing and saving/restoring the cv's, which is what I do now.
343 - memory leaks still latent, especially at thread termination.
344 - Coro::Event now works (haha).
345
346 0.05 Sun Jul 15 17:32:20 CEST 2001
347 - fixed a few issues in Coro::Event.
348 - I forgot to include Coro::Event in 0.04 :(:(:(
349
350 0.04 Sun Jul 15 05:24:59 CEST 2001
351 - @_ is now properly localized.
352 - Coro::State is now easier subclassable.
353 - Coro::Cont now coroutine-aware.
354 - Coro::Specific is a low-overhead module to create
355 coroutine-specific vars.
356 - Coro::Event provides a simple interface to Event.
357
358 0.03 Fri Jul 13 14:51:52 CEST 2001
359 - transfer() now implemented in XS (beware).
360 - new module Coro::Cont for really faked continuations.
361 - big internal architecture changes: Coro::State is now
362 really low-level and can thus be used to implement other
363 interesting things, While "Coro::" implements a process-like
364 model. Still crude and subject to change.
365 - $_ and $@ are no longer being localized.
366
367 0.02 Tue Jul 10 01:38:17 CEST 2001
368 - implemented "async" attribute.
369 - $_ and $@ are now localized.
370 - added Coro::Channel.
371 - more testcases, still no docs.
372
373 0.01 Tue Jul 3 02:18:41 CEST 2001
374 - original version; copied from Convert::Scalar.
375