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Revision: 1.174
Committed: Mon Dec 4 03:54:44 2006 UTC (17 years, 5 months ago) by root
Branch: MAIN
Changes since 1.173: +1 -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 - enhanced testsuite.
9
10 3.01 Sun Dec 3 23:47:42 CET 2006
11 - forgot to include Coro::Timer.
12
13 3.0 Sun Dec 3 22:57:25 CET 2006
14 - the "FINALLY COMPLETELY STABLE" release (coming soon:
15 the "FAMOUS LAST WORDS" release).
16 - implement a new stack sharing algorithm, which uses a stack
17 pool (size currently hardcoded).
18 - make stack sharing mandatory (it no longer uses a heuristic).
19 - eval/die no longer cause weird problems under heavy use.
20 - Coro::Event could cause livelocks if it was used but
21 no Coro::Event watchers were used.
22 - Coro::Event now uses asynccheck as prepare does not
23 check for changed watchers.
24 - Coro::Event allows multiple waiting coros and will wake up one
25 per event.
26 - Coro::Event should be cleaner and more efficient now.
27 - new utility function Coro::unblock_sub.
28 - document the sad fact that Event is no longer reentrant.
29 - putting a coroutine into the ready queue twice could under
30 some circumstances lead to stack corruption.
31 - minor incompatibility: subclassing Coro::State is supported
32 directly now without going through a _coro_state member.
33 - state/coro switching is much faster now.
34 - very minor optimisations and code/documentation cleanup.
35 - avoid problems due to compiler inlining.
36 - removed timers from Coro::Timer -> use AnyEvent instead.
37 - replaced Coro::idle coroutine by (cleaner) idle handler.
38 - updated to newest libcoro.
39 - implement enhanced support for valgrind.
40 - implement is_ready and return value for ready.
41 - removed Coro::Cont, it was a misnomer (it's generators),
42 and it was somewhat annoying to get it right. Will come back
43 if somebody asks for it :)
44 - many ->wait methods and Coro::Event could return
45 spuriously without the event having happened.
46
47 2.5 Tue Nov 7 12:22:33 CET 2006
48 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
49 use AnyEvent, moved them to Coro/.
50 - added Coro::LWP which contains all the uglyness required to
51 make LWP non-blocking.
52 - should work with perl 5.9.x now (Andreas König made me do it).
53 - fixed another bug in Coro::Select when the timeout was undef.
54 - reuse PL_start_env for all coros, saves some memory per coroutine.
55 - manage PL_top_env differently, hopefully to avoid panic: top_env.
56 - timeout argument was not properly used in Coro::Socket.
57 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
58 - emulate undocumented(!) functionality of IO::Socket required
59 by LWP(!!).
60 - updated eg/lwp to work with newer lwp's.
61 - remove "FATAL: uncaught exception" prefix. Coroutines that die
62 kill the whole process, just as exceptions in the main "coroutine"
63 did already.
64
65 2.1 Wed Nov 1 23:01:13 CET 2006
66 - fix a long-standing bug in Coro::Select where select with
67 zero timeout would instead change the current default filehandle.
68 - use a simpler and hopefully more robust way to clone padlists
69 (uses less memory and a perl function instead of our own).
70 - coro can now create a stack guard area on many architectures.
71 - Coro::AIO properly reexports additional functions from IO::AIO.
72 - updated libcoro with a workaround for OS X,
73 pach and testing by Michael Schwern.
74
75 2.0 Tue Oct 24 05:47:17 CEST 2006
76 - support additional aio requests in Coro::AIO.
77
78 1.9 (never properly released due to a glitch)
79
80 1.8 Thu Feb 2 00:59:06 CET 2006
81 - applied suggested patch by SAMV to avoid problems during stupid
82 mark & sweep gc run.
83 - applied patch by Scott Walters for 5.9.3 compatibility.
84
85 1.7 Tue Dec 27 01:41:58 CET 2005
86 - added Coro::AIO, a thin wrapper around IO::AIO.
87 - improved Makefile.PL explanations.
88
89 1.6 Mon Dec 12 21:30:05 CET 2005
90 - additionally save PM_curpm might fix as-of-yet
91 unseen problems with regex matches being attributed to the
92 wrong package.
93 - add t/10_bugs.t, which currently checks against imho broken
94 perls that use 0.26MB of stack space per Perl_magic_get
95 invocation (newer linuxes) as opposed to the 0.0002MB perl
96 normally uses.
97 - make stacksize configurable for the ultimate debian experience.
98
99 1.51 Mon Dec 12 18:48:36 CET 2005
100 - remove debugging warn() accidentally left in Coro::Select.
101
102 1.5 Tue Nov 29 13:32:44 CET 2005
103 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
104 - fix Coro::Select 'select'.
105 - strict'ify some modules.
106 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
107 - use XSLoader in selected modules.
108 - remove some 5.6 compatibility cruft.
109
110 1.4 Tue Sep 6 00:11:05 CEST 2005
111 - libcoro did not take into account the trampoline on amd64,
112 when 'l'inux method was used.
113
114 1.31 Tue Aug 30 23:31:33 CEST 2005
115 - some portability fixes/workarounds.
116
117 1.3 Sat Aug 20 03:08:56 CEST 2005
118 - no code changes. module seems to work fine.
119 - improve Coro::State docs, remove reference to nonexisting
120 Coro::State::flush method.
121 - no longer autodetect windows, present it as an option instead.
122
123 1.2 Mon May 16 02:00:55 CEST 2005
124 - included libcoro.c earlier in State.xs, might improve portability.
125 - use a faster and possibly more stable Coro::Cont implementation.
126 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
127 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
128 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
129
130 1.11 Thu Mar 3 18:00:52 CET 2005
131 - change of contact address.
132
133 1.1 Tue Feb 22 20:51:16 CET 2005
134 - support [l]inux method on amd64.
135 - allow some context switches while compiling/eval'ing.
136
137 1.0 Tue Aug 10 03:47:27 CEST 2004
138 - Event 0.89 fixes the bug again.
139 - fix the remaining(??) memleak. I didn't free the cache-AV for
140 padlists, so one AV per created anon-sub leaked.
141
142 0.97 Fri May 14 15:23:32 CEST 2004
143 - remove stupid gcc extension that was an experiment only anyway.
144
145 0.96 Thu May 13 18:09:29 CEST 2004
146 - tell people if they have yet another broken Event variant.
147 - made Coro to work _better_ with threads (it seems that, as long
148 as you use Coros in one thread only everything will work fine.
149 Looking at the perl source the problem might be missing locking
150 between Coro and some perl internal routines. That's not easily
151 fixable).
152 - (hopefully) got rid of the static xnext inside transfer.
153
154 0.95 Sun Feb 15 03:20:28 CET 2004
155 - removed Coro::State::flush, implemented a new and much
156 faster caching mechanism by attaching magic to the CV.
157 - a memleak with (real) closures remains.
158 - dramatically reduced size of stacks to 65536 (linux/x86), after
159 observing that even myhttpd never had more than a kilobyte
160 of stack in use (stack is still only physically allocated in
161 pagesize increments for systems suporting mmap).
162 - fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
163 - fix for threaded perl.
164
165 0.9 Sun Nov 23 04:32:39 CET 2003
166 - fix a few very hard to track down but (of course) stupid
167 memory leaks.
168 - stringify version number to avoid locale problems :(.
169 - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
170 hopefully ignoring it "just works".
171
172 0.8 Wed Nov 5 19:38:40 CET 2003
173 - port to perl5.005_03, but only 5.8.x+ is supported!
174 - honor LocalAddr even without LocalPort in Coro::Socket.
175
176 0.7 Tue May 27 03:12:38 CEST 2003
177 - the version jump indicates some level of testing, not gobs
178 of new features.
179 - uh... I found the prompt function in ExtUtils::MakeMaker.
180 Highly correct stuff, that is...
181 - fixed(?) a bug with die's in coroutines causing "panic: top_env".
182 the fix is not well understood by the author, so beware :(.
183
184 0.652 Thu May 8 02:54:46 CEST 2003
185 - Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
186 cause version 4 doesn't have ucontext.
187 - Benjamin Reed reported that setjmp works fine on darwin,
188 so preselect it.
189
190 0.651 Sat Mar 29 15:00:23 CET 2003
191 - fix a bug in Coro::Handle where some bytes could get lost
192 on reading, reported by jason@nichego.net.
193
194 0.65 Sun Mar 23 00:08:26 CET 2003
195 - added a README.linux-glibc.
196 - new module Coro::Select.
197 - also save/restore PL_comppad, fixes segfaults with 5.8.1.
198 (I never claimed that I know what I am doing ;).
199 - set default to setjmp/longjmp on non-x86-linux.
200
201 0.6 Thu Nov 21 11:09:06 CET 2002
202 - made lazy context switching the default.
203 - fixed the bug where SemaphoreSet::guard
204 was the same as timed_guard and timed_guard was missing.
205 - fix a memleak in Coro::Timer.
206 - reclassified context sharing as not experimental.
207
208 0.534 Sun Apr 14 03:05:12 CEST 2002
209 - fixed backspace => tab in header parsing (myhttpd).
210 - added eg/readline, for elmex.
211 - Coro::Event now calls ->start on first call instead of
212 ->again, which created wrong timeouts for the first ->next.
213 - fixed a bug where Coro::Socket returned a closed socket instead
214 of nothing on ECONNREFUSED and similar error conditions.
215
216 0.533 Mon Feb 18 18:49:40 CET 2002
217 - adapt to finally working Event-0.85.
218 - fixed buggy event initialization (trapped under windows, but how
219 could it possibly have worked anywhere?)
220
221 0.532 Wed Jan 16 02:45:32 CET 2002
222 - removed the reference to pp_entersub, might work on
223 (some) win32 perls now (testsuite works under cygwin,
224 without Event, which freezes).
225
226 0.531 Mon Dec 10 22:18:44 CET 2001
227 - Fixed a bug in SemaphoreSet::timed_down.
228
229 0.53 Tue Nov 27 21:11:13 CET 2001
230 - some tests for Event.
231 - slightly different internal architecture to get refcnt into the object
232 and not the reference. might fix a few bugs, certainly did introduce
233 new ones.
234 - Coro::Timer (independent of Event).
235 - new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
236
237 0.52 Tue Nov 6 21:36:18 CET 2001
238 - ported to cygwin (trivial).
239 patch by Gerrit P. Haase <gp@familiehaase.de>.
240 - small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
241
242 0.51 Thu Nov 1 20:39:01 CET 2001
243 - terminate/cancel now work properly (otherwise termination
244 could cause a "next coroutine is not and contains not..."
245 error.
246 - added Coro::Socket::shutdown.
247 - Coro::Event::loop no is the same as Event::loop.
248 - implemented terminate with args + join.
249
250 0.5 Fri Sep 28 16:15:35 CEST 2001
251 - fixed "print" on a Coro::Handle. The print method worked.
252 - small tweaks (seem to reduce memory consumption a lot)
253 in various modules.
254 - splendid use of "no warnings" scattered throughout.
255 - added Coro::Handle::rbuf, fixed Coro::Handle::fh.
256
257 0.49 Sun Sep 16 02:42:45 CEST 2001
258 - changed some method calls to function calls for speed
259 inside Coro::Handle.
260 - make Coro::Handle use an array instead of a hash for
261 speed reasons.
262 - IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
263 sjlj and ucontext should now work.
264 - IRIX-specific port for libcoro.
265 - swapped order of accept results to match IO::Socket.
266 - changed getsock/peername to sock/peername to match IO::Socket.
267 - fixed a bug that caused segfault when returning to main task
268 under some circumstances.
269 - other bugfixes.
270
271 0.45 Sun Sep 2 02:54:01 CEST 2001
272 - new method Coro::Handle::timeout.
273 - corrected speling of set...name to get...name in Coro::Socket.
274 - Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
275 - Coro::Handle now supports fileno and FILENO.
276 - added eg/myhttpd, a web server.
277 - Coro::Socket now accepts numeric ports as well as "port(number)"
278 syntax.
279 - moved some scheduling primitives into xs code. more to come.
280 - new simple priority system.
281 - implemented Coro::Event using XS, almost four times faster!
282 - small memory corruption problem fixed (boy that was difficult).
283
284 0.13 Wed Aug 8 16:53:07 CEST 2001
285 - new method Coro::Handle::readline.
286 - added eg/lwp and Coro::Handle::autoflush, to make LWP work.
287 (see eg/lwp on how to make LWP non-blocking).
288 - renamed Coro::Socket::new_inet to new.
289 - added Coro::Util, some utility functions.
290 - die/eval now works better (still get annoying (but true ;)
291 "Callback called exit" messages).
292 - Coro::Handle now supports timeout, and Coro::Socket Timeout.
293 - much better Coro::Socket support.
294
295 0.12 Fri Jul 27 04:19:01 CEST 2001
296 - do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
297 - very experimental stack sharing algorithm. not 100% safe but
298 should work well in practise ;)
299 - added Coro::RWLock.
300 - Coro::Specific now works.
301
302 0.11 Tue Jul 24 22:49:21 CEST 2001
303 - added specialized hack for newer and older linux versions (fast).
304 - renamed Coro::Event::IO to Coro::Handle.
305 - new module Coro::Socket.
306
307 0.1 Tue Jul 24 01:47:53 CEST 2001
308 - release candidate 3. A rather new internal structure :(
309 - the great renaming: Damian Conway gave me a suitable replacement
310 for yield.
311 - added Coro/libcoro, a portable coroutine implementation for C
312 (not even perl-dependent!!!), which can be used by Coro::State.
313 - renamed SAVE_DEFSV (on xs-level only) to avoid symbol clash in
314 perl-5.6.
315 - new function Coro::Event::idle.
316 - the idle process is now overriden
317 by default in Coro::Event.
318 - Coro::Channel now enforces the size.
319 - canceling events now works in all cases.
320 - Coro state now include $_ and $@.
321 - yet another bug workaround that I do not really understand :(
322 - new module Coro::Event::IO (very undocumented) to do
323 non-blocking i/o.
324 - performance tuning.
325
326 0.08 Thu Jul 19 06:13:25 CEST 2001
327 - release candidate 2 (new functionality).
328 - add Coro::State::flush function.
329 - transfer now supports a flags value (mostly for speed ATM).
330 - might compile and work in the presence of threads now.
331 - continuations have a saner syntax.
332 - no more memleaks.
333
334 0.07 Tue Jul 17 17:40:18 CEST 2001
335 - release candidate 1 ;)
336 - slightly nicer code.
337 - fixed a scheduling bug in Coro::Event.
338
339 0.06 Tue Jul 17 04:23:24 CEST 2001
340 - ok, I found the showstopper - the same sub must not be
341 re-entered in two different coroutines, otherwise => crash. I
342 see no easy solution to this problem, except by walking the call
343 chaing and saving/restoring the cv's, which is what I do now.
344 - memory leaks still latent, especially at thread termination.
345 - Coro::Event now works (haha).
346
347 0.05 Sun Jul 15 17:32:20 CEST 2001
348 - fixed a few issues in Coro::Event.
349 - I forgot to include Coro::Event in 0.04 :(:(:(
350
351 0.04 Sun Jul 15 05:24:59 CEST 2001
352 - @_ is now properly localized.
353 - Coro::State is now easier subclassable.
354 - Coro::Cont now coroutine-aware.
355 - Coro::Specific is a low-overhead module to create
356 coroutine-specific vars.
357 - Coro::Event provides a simple interface to Event.
358
359 0.03 Fri Jul 13 14:51:52 CEST 2001
360 - transfer() now implemented in XS (beware).
361 - new module Coro::Cont for really faked continuations.
362 - big internal architecture changes: Coro::State is now
363 really low-level and can thus be used to implement other
364 interesting things, While "Coro::" implements a process-like
365 model. Still crude and subject to change.
366 - $_ and $@ are no longer being localized.
367
368 0.02 Tue Jul 10 01:38:17 CEST 2001
369 - implemented "async" attribute.
370 - $_ and $@ are now localized.
371 - added Coro::Channel.
372 - more testcases, still no docs.
373
374 0.01 Tue Jul 3 02:18:41 CEST 2001
375 - original version; copied from Convert::Scalar.
376