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Comparing Coro/Changes (file contents):
Revision 1.29 by root, Wed Jul 25 04:26:55 2001 UTC vs.
Revision 1.251 by root, Wed Oct 3 01:48:05 2007 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
30.12 3TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO.
4TODO: maybe implement a default message channel, very much like Erlang
5 (which is cool in a lot of important aspects (failures!),
6 but very lacking in others (higher level ipc)).
7
84.0
9 - incompatibly changed Coro::Storable::freeze.
10 - major new feature: added Coro::Debug, for interactive coroutine
11 debugging, tracing and much more.
12 - unbelievable, but true: $_, $@ and many other "saved" variables
13 actually weren't being saved. This has been fixed, of course,
14 while increasing performance while losing all the save flags.
15 - save flags are gone, and all the api functions dealing with them.
16 - added Coro::Semaphore::adjust.
17 - added Coro::Util::fork_eval.
18 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
19 - added Coro::killall.
20 - reduce initial stack sizes to allow for "micro-coroutines".
21 - better async_pool resource management, moved parts of async_pool
22 handling to XS (major speed improvement).
23 - actually croak before modifying important data structures.
24 - refuse to transfer while compiling.
25 - possibly support eval EXPR better now.
26 - enable assembly per default on linux+bsd x86+amd64.
27 - all internal members are named _something for easier subclassing.
28 - many minor tweaks.
29
303.63 Wed May 16 14:10:06 CEST 2007
31 - implement handcoded assembly for x86/amd64 SVR ABI.
32
333.62 Fri Apr 27 21:36:06 CEST 2007
34 - upgrade libcoro (which might set unwind info correctly).
35 - change default on linux to setjmp/longjmp.
36
373.61 Thu Apr 19 12:36:18 CEST 2007
38 - Coro::Storable caused an endless loop when thawing invalid
39 pst's sometimes.
40 - use a Semaphore in Coro::Storable, as Storable doesn't
41 seem to be reentrant (although it is documented to
42 be threadsafe...).
43 - fix Coro::Signal to bring back the original unreliable
44 but stateful semantics.
45 - fixed a lot of typos in Coro.pm (patch submitted by David
46 Steinbrunner, which applied flawlessly).
47
483.6 Sat Apr 14 17:13:31 CEST 2007
49 - added some bugfixes to get eg/myhttpd working again.
50 - added Coro::Storable for often-cede'ing freeze/thaw.
51 - try to do a clean exit when a coroutine calls exit
52 (EXPERIMENTAL).
53 - got rid of indirect call through _coro_init.
54 - updated the partly antique examples in eg/ to
55 work again and be a bit less magic, too.
56 - fixed Coro::Signal semantics to work as documented again.
57
583.55 Sun Mar 25 01:20:47 CET 2007
59 - add SAVE_DEFFH to save the default filehandle and enable
60 it by default.
61 - finally move socket-operations from Coro::Socket to Coro::Handle
62 to be able to unblock foreign sockets.
63 - add Coro::State::save_also and guarded_save.
64 - add count accessor to Coro::Semaphore.
65 - add Coro::State::cctx_stacksize.
66 - just for the fun of it, do not rely on implicit context,
67 which can dramatically improve performance, but people
68 using windows-process-emulation perls do not care much about
69 performance.
70
713.51 Sun Mar 4 14:18:04 CET 2007
72 - fixed a problem when you weakened references to Coro::State's
73 (patch by Yuval Kogman).
74
753.501 Wed Feb 28 12:44:07 CET 2007
76 - rename some global symbols as macosx from hell redefines
77 them without asking.
78
793.5 Tue Feb 13 20:22:53 CET 2007
80 - do AnyEvent model detection earlier, avoiding problems
81 caused by first using AnyEvent and later Coro::Event.
82 - implement and document Coro::Event event objects.
83 - fix a potential problem in Coro::Event causing crashes.
84 - initialise PL_comppad when creating a new coroutine,
85 avoids crashes on early coro destruction.
86
873.41 Mon Jan 22 19:19:49 CET 2007
88 - readline on Coro::Handle did not support undefined $/,
89 nor did it deliver partial lines on EOF or error.
90 - implement malloc fallback for stack allocation because
91 stupid broken idiotic OSX has a stupid broken
92 idiotic fits-the-whole-os mmap "implementation" and
93 my dick feels longer if Coro is portable even to
94 obsolete platforms.
95
963.4 Fri Jan 19 21:52:54 CET 2007
97 - remove t/09_timer.t, as it isn't really testing much
98 but was rather flaky in practise.
99 - async_pool coro would keep arguments and callback alive until
100 it was reused.
101 - cancellation of a coroutine could cause spurious idle calls
102 in cede_notself.
103
1043.3 Sat Jan 6 03:45:00 CET 2007
105 - implement $coro->on_destroy.
106 - Coro::Event blocking semantics have been changed,
107 documented and - hopefully - improved.
108 - fix nice adding, not subtracting, from priority.
109 - fix ->prio and api_is_ready (patch by Mark Hinds).
110 - fixed an assert ("... == prev__cctx->idle_te")
111 that could errronously trigger.
112 - fix various large and small memleaks.
113 - use a (hopefully) more stable cancel implementation
114 that immediately frees the coroutine data.
115 - cede/cede_notself return a status now.
116 - added Coro::guard function.
117 - added a global coroutine pool for jobs (on my machine,
118 I can create and execute 48k simple coros/s with async,
119 and 128k coros with async_pool).
120 - Coro::AIO now uses the coroutine priority as io priority.
121
1223.2 Fri Dec 22 05:07:09 CET 2006
123 - improve portability to slightly older perls.
124 - use cleaner coroutine destruction.
125 - simplify configuration for users.
126 - optionally (unrecommended) prefer perl functions over
127 their coro replacements.
128
1293.11 Tue Dec 5 13:11:24 CET 2006
130 - fixed some bogus assert's, but as perl.h disables assert even
131 without NDEBUG (thank you very much), not too many people should
132 notice (that did include myself). Andreas König noticed, though :)
133 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
134 it. Also noticed by Andreas König :)
135 - save/restore tainted status.
136 - verified to pass the testsuite on my 5.9.5.
137
1383.1 Mon Dec 4 23:03:40 CET 2006
139 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
140 - incompatible change: transfer flags are now per-state.
141 - give a better error message on deadlock.
142 - document Coro::nready.
143 - enhanced testsuite.
144
1453.01 Sun Dec 3 23:47:42 CET 2006
146 - forgot to include Coro::Timer.
147
1483.0 Sun Dec 3 22:57:25 CET 2006
149 - the "FINALLY COMPLETELY STABLE" release (coming soon:
150 the "FAMOUS LAST WORDS" release).
151 - implement a new stack sharing algorithm, which uses a stack
152 pool (size currently hardcoded).
153 - make stack sharing mandatory (it no longer uses a heuristic).
154 - eval/die no longer cause weird problems under heavy use.
155 - Coro::Event could cause livelocks if it was used but
156 no Coro::Event watchers were used.
157 - Coro::Event now uses asynccheck as prepare does not
158 check for changed watchers.
159 - Coro::Event allows multiple waiting coros and will wake up one
160 per event.
161 - Coro::Event should be cleaner and more efficient now.
162 - new utility function Coro::unblock_sub.
163 - document the sad fact that Event is no longer reentrant.
164 - putting a coroutine into the ready queue twice could under
165 some circumstances lead to stack corruption.
166 - minor incompatibility: subclassing Coro::State is supported
167 directly now without going through a _coro_state member.
168 - state/coro switching is much faster now.
169 - very minor optimisations and code/documentation cleanup.
170 - avoid problems due to compiler inlining.
171 - removed timers from Coro::Timer -> use AnyEvent instead.
172 - replaced Coro::idle coroutine by (cleaner) idle handler.
173 - updated to newest libcoro.
174 - implement enhanced support for valgrind.
175 - implement is_ready and return value for ready.
176 - removed Coro::Cont, it was a misnomer (it's generators),
177 and it was somewhat annoying to get it right. Will come back
178 if somebody asks for it :)
179 - many ->wait methods and Coro::Event could return
180 spuriously without the event having happened.
181
1822.5 Tue Nov 7 12:22:33 CET 2006
183 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
184 use AnyEvent, moved them to Coro/.
185 - added Coro::LWP which contains all the uglyness required to
186 make LWP non-blocking.
187 - should work with perl 5.9.x now (Andreas König made me do it).
188 - fixed another bug in Coro::Select when the timeout was undef.
189 - reuse PL_start_env for all coros, saves some memory per coroutine.
190 - manage PL_top_env differently, hopefully to avoid panic: top_env.
191 - timeout argument was not properly used in Coro::Socket.
192 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
193 - emulate undocumented(!) functionality of IO::Socket required
194 by LWP(!!).
195 - updated eg/lwp to work with newer lwp's.
196 - remove "FATAL: uncaught exception" prefix. Coroutines that die
197 kill the whole process, just as exceptions in the main "coroutine"
198 did already.
199
2002.1 Wed Nov 1 23:01:13 CET 2006
201 - fix a long-standing bug in Coro::Select where select with
202 zero timeout would instead change the current default filehandle.
203 - use a simpler and hopefully more robust way to clone padlists
204 (uses less memory and a perl function instead of our own).
205 - coro can now create a stack guard area on many architectures.
206 - Coro::AIO properly reexports additional functions from IO::AIO.
207 - updated libcoro with a workaround for OS X,
208 pach and testing by Michael Schwern.
209
2102.0 Tue Oct 24 05:47:17 CEST 2006
211 - support additional aio requests in Coro::AIO.
212
2131.9 (never properly released due to a glitch)
214
2151.8 Thu Feb 2 00:59:06 CET 2006
216 - applied suggested patch by SAMV to avoid problems during stupid
217 mark & sweep gc run.
218 - applied patch by Scott Walters for 5.9.3 compatibility.
219
2201.7 Tue Dec 27 01:41:58 CET 2005
221 - added Coro::AIO, a thin wrapper around IO::AIO.
222 - improved Makefile.PL explanations.
223
2241.6 Mon Dec 12 21:30:05 CET 2005
225 - additionally save PM_curpm might fix as-of-yet
226 unseen problems with regex matches being attributed to the
227 wrong package.
228 - add t/10_bugs.t, which currently checks against imho broken
229 perls that use 0.26MB of stack space per Perl_magic_get
230 invocation (newer linuxes) as opposed to the 0.0002MB perl
231 normally uses.
232 - make stacksize configurable for the ultimate debian experience.
233
2341.51 Mon Dec 12 18:48:36 CET 2005
235 - remove debugging warn() accidentally left in Coro::Select.
236
2371.5 Tue Nov 29 13:32:44 CET 2005
238 - use Coro::Event inside Coro::Select to avoid spurious deadlocks.
239 - fix Coro::Select 'select'.
240 - strict'ify some modules.
241 - libcoro errornously restored the SIGUSR2 handler to SIGUSR1.
242 - use XSLoader in selected modules.
243 - remove some 5.6 compatibility cruft.
244
2451.4 Tue Sep 6 00:11:05 CEST 2005
246 - libcoro did not take into account the trampoline on amd64,
247 when 'l'inux method was used.
248
2491.31 Tue Aug 30 23:31:33 CEST 2005
250 - some portability fixes/workarounds.
251
2521.3 Sat Aug 20 03:08:56 CEST 2005
253 - no code changes. module seems to work fine.
254 - improve Coro::State docs, remove reference to nonexisting
255 Coro::State::flush method.
256 - no longer autodetect windows, present it as an option instead.
257
2581.2 Mon May 16 02:00:55 CEST 2005
259 - included libcoro.c earlier in State.xs, might improve portability.
260 - use a faster and possibly more stable Coro::Cont implementation.
261 - accept x86_64 in addition to amd64 for optimized linux-amd64 support.
262 - fix bugs Coro::SemaphoreSet that could cause locks never to be freed.
263 - fix bugs in CoroAPI.h and document it in Coro::MakeMaker.
264
2651.11 Thu Mar 3 18:00:52 CET 2005
266 - change of contact address.
267
2681.1 Tue Feb 22 20:51:16 CET 2005
269 - support [l]inux method on amd64.
270 - allow some context switches while compiling/eval'ing.
271
2721.0 Tue Aug 10 03:47:27 CEST 2004
273 - Event 0.89 fixes the bug again.
274 - fix the remaining(??) memleak. I didn't free the cache-AV for
275 padlists, so one AV per created anon-sub leaked.
276
2770.97 Fri May 14 15:23:32 CEST 2004
278 - remove stupid gcc extension that was an experiment only anyway.
279
2800.96 Thu May 13 18:09:29 CEST 2004
281 - tell people if they have yet another broken Event variant.
282 - made Coro to work _better_ with threads (it seems that, as long
283 as you use Coros in one thread only everything will work fine.
284 Looking at the perl source the problem might be missing locking
285 between Coro and some perl internal routines. That's not easily
286 fixable).
287 - (hopefully) got rid of the static xnext inside transfer.
288
2890.95 Sun Feb 15 03:20:28 CET 2004
290 - removed Coro::State::flush, implemented a new and much
291 faster caching mechanism by attaching magic to the CV.
292 - a memleak with (real) closures remains.
293 - dramatically reduced size of stacks to 65536 (linux/x86), after
294 observing that even myhttpd never had more than a kilobyte
295 of stack in use (stack is still only physically allocated in
296 pagesize increments for systems suporting mmap).
297 - fix for a "cygwin-64" architecture added, proposed by Stefan Traby.
298 - fix for threaded perl.
299
3000.9 Sun Nov 23 04:32:39 CET 2003
301 - fix a few very hard to track down but (of course) stupid
302 memory leaks.
303 - stringify version number to avoid locale problems :(.
304 - perl 5.9.0 does not have SvPADBUSY, reported by Scott Walters,
305 hopefully ignoring it "just works".
306
3070.8 Wed Nov 5 19:38:40 CET 2003
308 - port to perl5.005_03, but only 5.8.x+ is supported!
309 - honor LocalAddr even without LocalPort in Coro::Socket.
310
3110.7 Tue May 27 03:12:38 CEST 2003
312 - the version jump indicates some level of testing, not gobs
313 of new features.
314 - uh... I found the prompt function in ExtUtils::MakeMaker.
315 Highly correct stuff, that is...
316 - fixed(?) a bug with die's in coroutines causing "panic: top_env".
317 the fix is not well understood by the author, so beware :(.
318
3190.652 Thu May 8 02:54:46 CEST 2003
320 - Applied patch by Slaven Rezic to set default to "s" on FreeBSD,
321 cause version 4 doesn't have ucontext.
322 - Benjamin Reed reported that setjmp works fine on darwin,
323 so preselect it.
324
3250.651 Sat Mar 29 15:00:23 CET 2003
326 - fix a bug in Coro::Handle where some bytes could get lost
327 on reading, reported by jason@nichego.net.
328
3290.65 Sun Mar 23 00:08:26 CET 2003
330 - added a README.linux-glibc.
331 - new module Coro::Select.
332 - also save/restore PL_comppad, fixes segfaults with 5.8.1.
333 (I never claimed that I know what I am doing ;).
334 - set default to setjmp/longjmp on non-x86-linux.
335
3360.6 Thu Nov 21 11:09:06 CET 2002
337 - made lazy context switching the default.
338 - fixed the bug where SemaphoreSet::guard
339 was the same as timed_guard and timed_guard was missing.
340 - fix a memleak in Coro::Timer.
341 - reclassified context sharing as not experimental.
342
3430.534 Sun Apr 14 03:05:12 CEST 2002
344 - fixed backspace => tab in header parsing (myhttpd).
345 - added eg/readline, for elmex.
346 - Coro::Event now calls ->start on first call instead of
347 ->again, which created wrong timeouts for the first ->next.
348 - fixed a bug where Coro::Socket returned a closed socket instead
349 of nothing on ECONNREFUSED and similar error conditions.
350
3510.533 Mon Feb 18 18:49:40 CET 2002
352 - adapt to finally working Event-0.85.
353 - fixed buggy event initialization (trapped under windows, but how
354 could it possibly have worked anywhere?)
355
3560.532 Wed Jan 16 02:45:32 CET 2002
357 - removed the reference to pp_entersub, might work on
358 (some) win32 perls now (testsuite works under cygwin,
359 without Event, which freezes).
360
3610.531 Mon Dec 10 22:18:44 CET 2001
362 - Fixed a bug in SemaphoreSet::timed_down.
363
3640.53 Tue Nov 27 21:11:13 CET 2001
365 - some tests for Event.
366 - slightly different internal architecture to get refcnt into the object
367 and not the reference. might fix a few bugs, certainly did introduce
368 new ones.
369 - Coro::Timer (independent of Event).
370 - new timed_wait functions for Coro::Signal, Semaphore, SemaphoreSet.
371
3720.52 Tue Nov 6 21:36:18 CET 2001
373 - ported to cygwin (trivial).
374 patch by Gerrit P. Haase <gp@familiehaase.de>.
375 - small setjmp code fix by Sullivan.DanielJ@epamail.epa.gov.
376
3770.51 Thu Nov 1 20:39:01 CET 2001
378 - terminate/cancel now work properly (otherwise termination
379 could cause a "next coroutine is not and contains not..."
380 error.
381 - added Coro::Socket::shutdown.
382 - Coro::Event::loop no is the same as Event::loop.
383 - implemented terminate with args + join.
384
3850.5 Fri Sep 28 16:15:35 CEST 2001
386 - fixed "print" on a Coro::Handle. The print method worked.
387 - small tweaks (seem to reduce memory consumption a lot)
388 in various modules.
389 - splendid use of "no warnings" scattered throughout.
390 - added Coro::Handle::rbuf, fixed Coro::Handle::fh.
391
3920.49 Sun Sep 16 02:42:45 CEST 2001
393 - changed some method calls to function calls for speed
394 inside Coro::Handle.
395 - make Coro::Handle use an array instead of a hash for
396 speed reasons.
397 - IRIX mystery solved: it's SGI's NT, after all: "standard, huh?".
398 sjlj and ucontext should now work.
399 - IRIX-specific port for libcoro.
400 - swapped order of accept results to match IO::Socket.
401 - changed getsock/peername to sock/peername to match IO::Socket.
402 - fixed a bug that caused segfault when returning to main task
403 under some circumstances.
404 - other bugfixes.
405
4060.45 Sun Sep 2 02:54:01 CEST 2001
407 - new method Coro::Handle::timeout.
408 - corrected speling of set...name to get...name in Coro::Socket.
409 - Coro::Socket::accept now returns a Coro::Socket, not a Coro::Handle.
410 - Coro::Handle now supports fileno and FILENO.
411 - added eg/myhttpd, a web server.
412 - Coro::Socket now accepts numeric ports as well as "port(number)"
413 syntax.
414 - moved some scheduling primitives into xs code. more to come.
415 - new simple priority system.
416 - implemented Coro::Event using XS, almost four times faster!
417 - small memory corruption problem fixed (boy that was difficult).
418
4190.13 Wed Aug 8 16:53:07 CEST 2001
420 - new method Coro::Handle::readline.
421 - added eg/lwp and Coro::Handle::autoflush, to make LWP work.
422 (see eg/lwp on how to make LWP non-blocking).
423 - renamed Coro::Socket::new_inet to new.
424 - added Coro::Util, some utility functions.
425 - die/eval now works better (still get annoying (but true ;)
426 "Callback called exit" messages).
427 - Coro::Handle now supports timeout, and Coro::Socket Timeout.
428 - much better Coro::Socket support.
429
4300.12 Fri Jul 27 04:19:01 CEST 2001
4 - do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined. 431 - do not use mmap if neither MAP_ANON nor MAP_ANONYMOUS is defined.
5 - very experimental stack sharing algorithm. not 100% safe ut 432 - very experimental stack sharing algorithm. not 100% safe but
6 should work well in practise ;) 433 should work well in practise ;)
434 - added Coro::RWLock.
435 - Coro::Specific now works.
7 436
80.11 Tue Jul 24 22:49:21 CEST 2001 4370.11 Tue Jul 24 22:49:21 CEST 2001
9 - added specialized hack for newer and older linux versions (fast). 438 - added specialized hack for newer and older linux versions (fast).
10 - renamed Coro::Event::IO to Coro::Handle. 439 - renamed Coro::Event::IO to Coro::Handle.
11 - new module Coro::Socket. 440 - new module Coro::Socket.

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