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Revision: 1.165
Committed: Fri Dec 1 03:47:55 2006 UTC (17 years, 5 months ago) by root
Branch: MAIN
Changes since 1.164: +1 -0 lines
Log Message:
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File Contents

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