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Comparing Coro/Changes (file contents):
Revision 1.63 by root, Mon Dec 3 05:52:35 2001 UTC vs.
Revision 1.264 by root, Sun Oct 7 03:58:37 2007 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
30.531 3TODO: localise SIG{__DIE__} and/or __WARN__
4TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO.
5TODO: maybe implement a default message channel, very much like Erlang
6 (which is cool in a lot of important aspects (failures!),
7 but very lacking in others (higher level ipc)).
8
9 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
10 be local to each coro (see Coro::State).
11 - possibly bring back 5.10 compatibility (untested).
12 - work around stupid (and wrong) warning on 5.10 :(.
13 - overlay the saved state over the context stack. This saves
14 a few hundred bytes per coroutine on average and also
15 speeds up context switching a bit.
16 - (more) correctly calculate stack usage in coro_rss.
17
184.03 Sat Oct 6 21:24:00 CEST 2007
19 - added Coro::throw method.
20 - minor code cleanups.
21
224.02 Sat Oct 6 02:36:47 CEST 2007
23 - fix a very minor per-coroutine memleak (a single codereference).
24 - fixed a bug where the currently in-use c context would be freed
25 prematurely (can happen only when programs change the stacksize
26 or use tracing).
27 - tracing can no longer keep a coro alive after it terminated.
28 - do static branch prediction in the common path for gcc. gives
29 about 2-5% speed improvement here.
30
314.01 Fri Oct 5 22:10:49 CEST 2007
32 - instead of recreating *a* standard output handle we simply
33 use STDOUT, which is faster and hopefully more robust.
34
354.0 Fri Oct 5 12:56:00 CEST 2007
36 - incompatibly changed Coro::Storable::freeze.
37 - major new feature: added Coro::Debug, for interactive coroutine
38 debugging, tracing and much more.
39 - major bug fix: unbelievable, but true: $_, $/ and many other
40 "saved" variables actually weren't being saved. This has been fixed,
41 of course, while increasing performance while losing all the save
42 flags.
43 - save flags are gone, and all the api functions dealing with them.
44 - added Coro::Semaphore::adjust.
45 - added Coro::Util::fork_eval.
46 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
47 - added Coro::killall.
48 - reduce initial stack sizes to allow for "micro-coroutines".
49 - better async_pool resource management, moved parts of async_pool
50 handling to XS (major speed improvement).
51 - actually croak before modifying important data structures.
52 - refuse to transfer while compiling.
53 - possibly support eval EXPR better now.
54 - enable assembly per default on linux+bsd x86+amd64.
55 - all internal members were renamed _something for easier subclassing.
56 - many minor tweaks.
57
583.63 Wed May 16 14:10:06 CEST 2007
59 - implement handcoded assembly for x86/amd64 SVR ABI.
60
613.62 Fri Apr 27 21:36:06 CEST 2007
62 - upgrade libcoro (which might set unwind info correctly).
63 - change default on linux to setjmp/longjmp.
64
653.61 Thu Apr 19 12:36:18 CEST 2007
66 - Coro::Storable caused an endless loop when thawing invalid
67 pst's sometimes.
68 - use a Semaphore in Coro::Storable, as Storable doesn't
69 seem to be reentrant (although it is documented to
70 be threadsafe...).
71 - fix Coro::Signal to bring back the original unreliable
72 but stateful semantics.
73 - fixed a lot of typos in Coro.pm (patch submitted by David
74 Steinbrunner, which applied flawlessly).
75
763.6 Sat Apr 14 17:13:31 CEST 2007
77 - added some bugfixes to get eg/myhttpd working again.
78 - added Coro::Storable for often-cede'ing freeze/thaw.
79 - try to do a clean exit when a coroutine calls exit
80 (EXPERIMENTAL).
81 - got rid of indirect call through _coro_init.
82 - updated the partly antique examples in eg/ to
83 work again and be a bit less magic, too.
84 - fixed Coro::Signal semantics to work as documented again.
85
863.55 Sun Mar 25 01:20:47 CET 2007
87 - add SAVE_DEFFH to save the default filehandle and enable
88 it by default.
89 - finally move socket-operations from Coro::Socket to Coro::Handle
90 to be able to unblock foreign sockets.
91 - add Coro::State::save_also and guarded_save.
92 - add count accessor to Coro::Semaphore.
93 - add Coro::State::cctx_stacksize.
94 - just for the fun of it, do not rely on implicit context,
95 which can dramatically improve performance, but people
96 using windows-process-emulation perls do not care much about
97 performance.
98
993.51 Sun Mar 4 14:18:04 CET 2007
100 - fixed a problem when you weakened references to Coro::State's
101 (patch by Yuval Kogman).
102
1033.501 Wed Feb 28 12:44:07 CET 2007
104 - rename some global symbols as macosx from hell redefines
105 them without asking.
106
1073.5 Tue Feb 13 20:22:53 CET 2007
108 - do AnyEvent model detection earlier, avoiding problems
109 caused by first using AnyEvent and later Coro::Event.
110 - implement and document Coro::Event event objects.
111 - fix a potential problem in Coro::Event causing crashes.
112 - initialise PL_comppad when creating a new coroutine,
113 avoids crashes on early coro destruction.
114
1153.41 Mon Jan 22 19:19:49 CET 2007
116 - readline on Coro::Handle did not support undefined $/,
117 nor did it deliver partial lines on EOF or error.
118 - implement malloc fallback for stack allocation because
119 stupid broken idiotic OSX has a stupid broken
120 idiotic fits-the-whole-os mmap "implementation" and
121 my dick feels longer if Coro is portable even to
122 obsolete platforms.
123
1243.4 Fri Jan 19 21:52:54 CET 2007
125 - remove t/09_timer.t, as it isn't really testing much
126 but was rather flaky in practise.
127 - async_pool coro would keep arguments and callback alive until
128 it was reused.
129 - cancellation of a coroutine could cause spurious idle calls
130 in cede_notself.
131
1323.3 Sat Jan 6 03:45:00 CET 2007
133 - implement $coro->on_destroy.
134 - Coro::Event blocking semantics have been changed,
135 documented and - hopefully - improved.
136 - fix nice adding, not subtracting, from priority.
137 - fix ->prio and api_is_ready (patch by Mark Hinds).
138 - fixed an assert ("... == prev__cctx->idle_te")
139 that could errronously trigger.
140 - fix various large and small memleaks.
141 - use a (hopefully) more stable cancel implementation
142 that immediately frees the coroutine data.
143 - cede/cede_notself return a status now.
144 - added Coro::guard function.
145 - added a global coroutine pool for jobs (on my machine,
146 I can create and execute 48k simple coros/s with async,
147 and 128k coros with async_pool).
148 - Coro::AIO now uses the coroutine priority as io priority.
149
1503.2 Fri Dec 22 05:07:09 CET 2006
151 - improve portability to slightly older perls.
152 - use cleaner coroutine destruction.
153 - simplify configuration for users.
154 - optionally (unrecommended) prefer perl functions over
155 their coro replacements.
156
1573.11 Tue Dec 5 13:11:24 CET 2006
158 - fixed some bogus assert's, but as perl.h disables assert even
159 without NDEBUG (thank you very much), not too many people should
160 notice (that did include myself). Andreas König noticed, though :)
161 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
162 it. Also noticed by Andreas König :)
163 - save/restore tainted status.
164 - verified to pass the testsuite on my 5.9.5.
165
1663.1 Mon Dec 4 23:03:40 CET 2006
167 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
168 - incompatible change: transfer flags are now per-state.
169 - give a better error message on deadlock.
170 - document Coro::nready.
171 - enhanced testsuite.
172
1733.01 Sun Dec 3 23:47:42 CET 2006
174 - forgot to include Coro::Timer.
175
1763.0 Sun Dec 3 22:57:25 CET 2006
177 - the "FINALLY COMPLETELY STABLE" release (coming soon:
178 the "FAMOUS LAST WORDS" release).
179 - implement a new stack sharing algorithm, which uses a stack
180 pool (size currently hardcoded).
181 - make stack sharing mandatory (it no longer uses a heuristic).
182 - eval/die no longer cause weird problems under heavy use.
183 - Coro::Event could cause livelocks if it was used but
184 no Coro::Event watchers were used.
185 - Coro::Event now uses asynccheck as prepare does not
186 check for changed watchers.
187 - Coro::Event allows multiple waiting coros and will wake up one
188 per event.
189 - Coro::Event should be cleaner and more efficient now.
190 - new utility function Coro::unblock_sub.
191 - document the sad fact that Event is no longer reentrant.
192 - putting a coroutine into the ready queue twice could under
193 some circumstances lead to stack corruption.
194 - minor incompatibility: subclassing Coro::State is supported
195 directly now without going through a _coro_state member.
196 - state/coro switching is much faster now.
197 - very minor optimisations and code/documentation cleanup.
198 - avoid problems due to compiler inlining.
199 - removed timers from Coro::Timer -> use AnyEvent instead.
200 - replaced Coro::idle coroutine by (cleaner) idle handler.
201 - updated to newest libcoro.
202 - implement enhanced support for valgrind.
203 - implement is_ready and return value for ready.
204 - removed Coro::Cont, it was a misnomer (it's generators),
205 and it was somewhat annoying to get it right. Will come back
206 if somebody asks for it :)
207 - many ->wait methods and Coro::Event could return
208 spuriously without the event having happened.
209
2102.5 Tue Nov 7 12:22:33 CET 2006
211 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
212 use AnyEvent, moved them to Coro/.
213 - added Coro::LWP which contains all the uglyness required to
214 make LWP non-blocking.
215 - should work with perl 5.9.x now (Andreas König made me do it).
216 - fixed another bug in Coro::Select when the timeout was undef.
217 - reuse PL_start_env for all coros, saves some memory per coroutine.
218 - manage PL_top_env differently, hopefully to avoid panic: top_env.
219 - timeout argument was not properly used in Coro::Socket.
220 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
221 - emulate undocumented(!) functionality of IO::Socket required
222 by LWP(!!).
223 - updated eg/lwp to work with newer lwp's.
224 - remove "FATAL: uncaught exception" prefix. Coroutines that die
225 kill the whole process, just as exceptions in the main "coroutine"
226 did already.
227
2282.1 Wed Nov 1 23:01:13 CET 2006
229 - fix a long-standing bug in Coro::Select where select with
230 zero timeout would instead change the current default filehandle.
231 - use a simpler and hopefully more robust way to clone padlists
232 (uses less memory and a perl function instead of our own).
233 - coro can now create a stack guard area on many architectures.
234 - Coro::AIO properly reexports additional functions from IO::AIO.
235 - updated libcoro with a workaround for OS X,
236 pach and testing by Michael Schwern.
237
2382.0 Tue Oct 24 05:47:17 CEST 2006
239 - support additional aio requests in Coro::AIO.
240
2411.9 (never properly released due to a glitch)
242
2431.8 Thu Feb 2 00:59:06 CET 2006
244 - applied suggested patch by SAMV to avoid problems during stupid
245 mark & sweep gc run.
246 - applied patch by Scott Walters for 5.9.3 compatibility.
247
2481.7 Tue Dec 27 01:41:58 CET 2005
249 - added Coro::AIO, a thin wrapper around IO::AIO.
250 - improved Makefile.PL explanations.
251
2521.6 Mon Dec 12 21:30:05 CET 2005
253 - additionally save PM_curpm might fix as-of-yet
254 unseen problems with regex matches being attributed to the
255 wrong package.
256 - add t/10_bugs.t, which currently checks against imho broken
257 perls that use 0.26MB of stack space per Perl_magic_get
258 invocation (newer linuxes) as opposed to the 0.0002MB perl
259 normally uses.
260 - make stacksize configurable for the ultimate debian experience.
261
2621.51 Mon Dec 12 18:48:36 CET 2005
263 - remove debugging warn() accidentally left in Coro::Select.
264
2651.5 Tue Nov 29 13:32:44 CET 2005
266 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
267 - fix Coro::Select 'select'.
268 - strict'ify some modules.
269 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
270 - use XSLoader in selected modules.
271 - remove some 5.6 compatibility cruft.
272
2731.4 Tue Sep 6 00:11:05 CEST 2005
274 - libcoro did not take into account the trampoline on amd64,
275 when 'l'inux method was used.
276
2771.31 Tue Aug 30 23:31:33 CEST 2005
278 - some portability fixes/workarounds.
279
2801.3 Sat Aug 20 03:08:56 CEST 2005
281 - no code changes. module seems to work fine.
282 - improve Coro::State docs, remove reference to nonexisting
283 Coro::State::flush method.
284 - no longer autodetect windows, present it as an option instead.
285
2861.2 Mon May 16 02:00:55 CEST 2005
287 - included libcoro.c earlier in State.xs, might improve portability.
288 - use a faster and possibly more stable Coro::Cont implementation.
289 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
290 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
291 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
292
2931.11 Thu Mar 3 18:00:52 CET 2005
294 - change of contact address.
295
2961.1 Tue Feb 22 20:51:16 CET 2005
297 - support [l]inux method on amd64.
298 - allow some context switches while compiling/eval'ing.
299
3001.0 Tue Aug 10 03:47:27 CEST 2004
301 - Event 0.89 fixes the bug again.
302 - fix the remaining(??) memleak. I didn't free the cache-AV for
303 padlists, so one AV per created anon-sub leaked.
304
3050.97 Fri May 14 15:23:32 CEST 2004
306 - remove stupid gcc extension that was an experiment only anyway.
307
3080.96 Thu May 13 18:09:29 CEST 2004
309 - tell people if they have yet another broken Event variant.
310 - made Coro to work _better_ with threads (it seems that, as long
311 as you use Coros in one thread only everything will work fine.
312 Looking at the perl source the problem might be missing locking
313 between Coro and some perl internal routines. That's not easily
314 fixable).
315 - (hopefully) got rid of the static xnext inside transfer.
316
3170.95 Sun Feb 15 03:20:28 CET 2004
318 - removed Coro::State::flush, implemented a new and much
319 faster caching mechanism by attaching magic to the CV.
320 - a memleak with (real) closures remains.
321 - dramatically reduced size of stacks to 65536 (linux/x86), after
322 observing that even myhttpd never had more than a kilobyte
323 of stack in use (stack is still only physically allocated in
324 pagesize increments for systems suporting mmap).
325 - fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
326 - fix for threaded perl.
327
3280.9 Sun Nov 23 04:32:39 CET 2003
329 - fix a few very hard to track down but (of course) stupid
330 memory leaks.
331 - stringify version number to avoid locale problems :(.
332 - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
333 hopefully ignoring it "just works".
334
3350.8 Wed Nov 5 19:38:40 CET 2003
336 - port to perl5.005_03, but only 5.8.x+ is supported!
337 - honor LocalAddr even without LocalPort in Coro::Socket.
338
3390.7 Tue May 27 03:12:38 CEST 2003
340 - the version jump indicates some level of testing, not gobs
341 of new features.
342 - uh... I found the prompt function in ExtUtils::MakeMaker.
343 Highly correct stuff, that is...
344 - fixed(?) a bug with die's in coroutines causing "panic: top_env".
345 the fix is not well understood by the author, so beware :(.
346
3470.652 Thu May 8 02:54:46 CEST 2003
348 - Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
349 cause version 4 doesn't have ucontext.
350 - Benjamin Reed reported that setjmp works fine on darwin,
351 so preselect it.
352
3530.651 Sat Mar 29 15:00:23 CET 2003
354 - fix a bug in Coro::Handle where some bytes could get lost
355 on reading, reported by jason@nichego.net.
356
3570.65 Sun Mar 23 00:08:26 CET 2003
358 - added a README.linux-glibc.
359 - new module Coro::Select.
360 - also save/restore PL_comppad, fixes segfaults with 5.8.1.
361 (I never claimed that I know what I am doing ;).
362 - set default to setjmp/longjmp on non-x86-linux.
363
3640.6 Thu Nov 21 11:09:06 CET 2002
365 - made lazy context switching the default.
366 - fixed the bug where SemaphoreSet::guard
367 was the same as timed_guard and timed_guard was missing.
368 - fix a memleak in Coro::Timer.
369 - reclassified context sharing as not experimental.
370
3710.534 Sun Apr 14 03:05:12 CEST 2002
372 - fixed backspace => tab in header parsing (myhttpd).
373 - added eg/readline, for elmex.
374 - Coro::Event now calls ->start on first call instead of
375 ->again, which created wrong timeouts for the first ->next.
376 - fixed a bug where Coro::Socket returned a closed socket instead
377 of nothing on ECONNREFUSED and similar error conditions.
378
3790.533 Mon Feb 18 18:49:40 CET 2002
380 - adapt to finally working Event-0.85.
381 - fixed buggy event initialization (trapped under windows, but how
382 could it possibly have worked anywhere?)
383
3840.532 Wed Jan 16 02:45:32 CET 2002
385 - removed the reference to pp_entersub, might work on
386 (some) win32 perls now (testsuite works under cygwin,
387 without Event, which freezes).
388
3890.531 Mon Dec 10 22:18:44 CET 2001
4 - Fixed a bug in SemaphoreSet::timed_down. 390 - Fixed a bug in SemaphoreSet::timed_down.
5 391
60.53 Tue Nov 27 21:11:13 CET 2001 3920.53 Tue Nov 27 21:11:13 CET 2001
7 - some tests for Event. 393 - some tests for Event.
8 - slightly different internal architecture to get refcnt into the object 394 - slightly different internal architecture to get refcnt into the object
9 and not the reference. might fix a few bugs, certainly did introduce 395 and not the reference. might fix a few bugs, certainly did introduce
10 new ones. 396 new ones.
11 - Coro::Timer (independent of Event). 397 - Coro::Timer (independent of Event).
12 - new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet. 398 - new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
13 399
140.52 Tue Nov 6 21:36:18 CET 2001 4000.52 Tue Nov 6 21:36:18 CET 2001
15 - ported to cygwin (trivial). 401 - ported to cygwin (trivial).
16 patch by Gerrit P. Haase <gp@familiehaase.de>. 402 patch by Gerrit P. Haase <gp@familiehaase.de>.
17 - small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov. 403 - small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
18 404
190.51 Thu Nov 1 20:39:01 CET 2001 4050.51 Thu Nov 1 20:39:01 CET 2001
20 - terminate/cancel now work properly (otherwise termination 406 - terminate/cancel now work properly (otherwise termination
21 could cause a "next coroutine is not and contains not..." 407 could cause a "next coroutine is not and contains not..."
22 error. 408 error.
23 - added Coro::Socket::shutdown. 409 - added Coro::Socket::shutdown.
24 - Coro::Event::loop no is the same as Event::loop. 410 - Coro::Event::loop no is the same as Event::loop.
25 - implemented terminate with args + join. 411 - implemented terminate with args + join.
26 412
270.5 Fri Sep 28 16:15:35 CEST 2001 4130.5 Fri Sep 28 16:15:35 CEST 2001
28 - fixed "print" on a Coro::Handle. The print method worked. 414 - fixed "print" on a Coro::Handle. The print method worked.
29 - small tweaks (seem to reduce memory consumption a lot) 415 - small tweaks (seem to reduce memory consumption a lot)
30 in various modules. 416 in various modules.
31 - splendid use of "no warnings" scattered throughout. 417 - splendid use of "no warnings" scattered throughout.
32 - added Coro::Handle::rbuf, fixed Coro::Handle::fh. 418 - added Coro::Handle::rbuf, fixed Coro::Handle::fh.

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