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Comparing Coro/Changes (file contents):
Revision 1.139 by root, Sun Nov 5 02:18:05 2006 UTC vs.
Revision 1.331 by root, Sun Apr 6 17:51:14 2008 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: possibly convert some of the Event modules into AnyEvent users. 3TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO.
4TODO: maybe implement a default message channel, very much like Erlang's
5 actor model (which is cool in a lot of important aspects (failures!),
6 but very lacking in others (higher level ipc)).
4 7
8 - allow coroutine switches during eval's under 5.10.x, as it seems
9 the parser is a per-interpreter option now, so this is safe
10 (this might fix the odd crashing bug).
11 - drop support for 5.9.x versions, they are dead, jim.
12
134.47 Sun Apr 6 00:37:52 CEST 2008
14 - force cctx allocation on API calls: we know we need to force one
15 and gcc actually manages to confuse our heuristic nowadays,
16 leading to crashes and worse.
17 - document force_cctx.
18
194.46 Fri Apr 4 22:05:43 CEST 2008
20 - upgrade libcoro, resulting in pthread-backend (which was only created
21 to fulfill the rules of the programming languages shootout).
22
234.45 Thu Mar 13 11:55:36 CET 2008
24 - fix a file leaking bug in eg/mhyttpd that would allow
25 downloading of any file (reported by oesi).
26 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
27 (also add testcase).
28 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
29 apparently having loads of fun with that).
30 - implement $state->swap_defsv, ->swap_defav and document ->throw.
31
324.4 Wed Feb 13 16:44:29 CET 2008
33 - only assume .cfi pseudo isns exist on GNU/Linux.
34 - add get_timed method to Coro::Channels.
35 - fixed Coro::Debug manpage.
36 - perl 5.11 compatbility improvement based on patch by
37 Andreas König.
38
394.37 Sun Jan 20 11:25:23 CET 2008
40 - soften the check for an active parser for perl 5.10 (avoiding
41 "Coro::State::transfer called while parsing" in many cases).
42
434.36 Sun Jan 13 10:53:56 CET 2008
44 - reset diehook when terminating from an async_pool as to not
45 trigger any __DIE__ handlers.
46
474.35 Sun Jan 13 04:14:13 CET 2008
48 - "bt" debug command now displays any exceptions
49 from longmess and also skips the innermost
50 stackframes, giving more useufl output.
51 - allow backtraces in coroutines blocked in Coro::EV,
52 at a <1% speed hit.
53 - handle localising of $SIG{__WARN__} and __DIE__
54 properly (with a proper amount of dirty hacking).
55
564.34 Sat Dec 22 17:49:53 CET 2007
57 - upgrade to EV version 2.0 API.
58
594.33 Mon Dec 17 08:36:12 CET 2007
60 - make Coro::AIO etc. loadable in the absence of EV.
61
624.32 Mon Dec 17 07:46:02 CET 2007
63 - majorly improved Coro::Handle's performance with Coro::EV.
64 - implemented the until now mythical Coro::BDB module.
65 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
66
674.31 Wed Dec 5 12:32:39 CET 2007
68 - remove warn statement form Coro::Util.
69
704.3 Tue Dec 4 20:33:14 CET 2007
71 - calls to the idle function could cause stack corruption
72 when the stack changed.
73 - do no longer rely on the presence of EV::DNS if EV is used
74 (because it is gone), but instead take avdantage of EV::ADNS
75 if available.
76 - add ($) prototypes to all functions in Coro::Storable.
77 - use a conventional (safer) idle callback in Coro::EV.
78 - do accept quickly in Coro::Debug to avoid endless loops.
79
804.22 Fri Nov 30 16:04:04 CET 2007
81 - really use optimised versions for Event and EV in Coro::Util
82 and Coro::Handle.
83
844.21 Sun Nov 25 10:48:59 CET 2007
85 - fix a spurious memory read.
86 - Coro::EV no longer keeps the eventloop "alive".
87
884.2 Fri Nov 9 20:47:05 CET 2007
89 - enable/disable tracing from a new coroutine, not a pooled one.
90 - fix a memleak in Coro::Event.
91 - removed killall call from fork_eval.
92 - made sure store_fd is already loaded so that fork_eval
93 does not have to parse autoload in each subprocess.
94 - only use assembly method if -O switch is in $Config{optimize}.
95 - add (optional) Coro::EV module, so far the best event loop module
96 directly supported by Coro.
97 - if the event model is EV, use EV::DNS to resolve
98 stuff in Coro::Util.
99 - don't get confused by multiple event notifications in Coro::Handle.
100 - initial support for EV (libevent interface).
101 - require Event and EV using configure_requires, to force their existance.
102
1034.13 Wed Oct 24 07:26:45 CEST 2007
104 - add Coro::Storable::blocking_thaw.
105 - use a vastly more complicated technique to localise
106 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
107 - use a coroutine for the idle callback Coro::Event,
108 instead of running Event in the current coroutine context.
109 This also catches recursive invocations.
110 - actually report fork errors in gethostbyname and inet_aton.
111
1124.11 Thu Oct 11 02:40:24 CEST 2007
113 - port to threaded perls.
114
1154.1 Thu Oct 11 02:38:16 CEST 2007
116 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
117 be local to each coro (see Coro::State).
118 - incompatible change: for very deep reasons, cede and cede_notself
119 cannot return anything, so nothing will be returned.
120 - possibly bring back 5.10 compatibility (untested).
121 - work around stupid (and wrong) warning on 5.10 :(.
122 - overlay the saved state over the context stack. This saves
123 a few hundred bytes per coroutine on average and also
124 speeds up context switching a bit.
125 - further tune default stack sizes.
126 - (more) correctly calculate stack usage in coro_rss.
127 - Coro::Storable::blocking_* did not properly lock
128 resulting in races between coroutines.
129 - added Coro::Storable::guard.
130 - stopping to trace a coroutine could destroy the cctx of
131 an unrelated coroutine.
132 - explain the relationship between Perl and C coroutines in
133 more detail in Coro::State.
134 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
135 causing a fork per resolve. This also affected Coro::Socket.
136 - switch to a separate stack in $coro->call/eval to avoid
137 invalidating pointers.
138
1394.03 Sat Oct 6 21:24:00 CEST 2007
140 - added Coro::throw method.
141 - minor code cleanups.
142
1434.02 Sat Oct 6 02:36:47 CEST 2007
144 - fix a very minor per-coroutine memleak (a single codereference).
145 - fixed a bug where the currently in-use c context would be freed
146 prematurely (can happen only when programs change the stacksize
147 or use tracing).
148 - tracing can no longer keep a coro alive after it terminated.
149 - do static branch prediction in the common path for gcc. gives
150 about 2-5% speed improvement here.
151
1524.01 Fri Oct 5 22:10:49 CEST 2007
153 - instead of recreating *a* standard output handle we simply
154 use STDOUT, which is faster and hopefully more robust.
155
1564.0 Fri Oct 5 12:56:00 CEST 2007
157 - incompatibly changed Coro::Storable::freeze.
158 - major new feature: added Coro::Debug, for interactive coroutine
159 debugging, tracing and much more.
160 - major bug fix: unbelievable, but true: $_, $/ and many other
161 "saved" variables actually weren't being saved. This has been fixed,
162 of course, while increasing performance while losing all the save
163 flags.
164 - save flags are gone, and all the api functions dealing with them.
165 - added Coro::Semaphore::adjust.
166 - added Coro::Util::fork_eval.
167 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
168 - added Coro::killall.
169 - reduce initial stack sizes to allow for "micro-coroutines".
170 - better async_pool resource management, moved parts of async_pool
171 handling to XS (major speed improvement).
172 - actually croak before modifying important data structures.
173 - refuse to transfer while compiling.
174 - possibly support eval EXPR better now.
175 - enable assembly per default on linux+bsd x86+amd64.
176 - all internal members were renamed _something for easier subclassing.
177 - many minor tweaks.
178
1793.63 Wed May 16 14:10:06 CEST 2007
180 - implement handcoded assembly for x86/amd64 SVR ABI.
181
1823.62 Fri Apr 27 21:36:06 CEST 2007
183 - upgrade libcoro (which might set unwind info correctly).
184 - change default on linux to setjmp/longjmp.
185
1863.61 Thu Apr 19 12:36:18 CEST 2007
187 - Coro::Storable caused an endless loop when thawing invalid
188 pst's sometimes.
189 - use a Semaphore in Coro::Storable, as Storable doesn't
190 seem to be reentrant (although it is documented to
191 be threadsafe...).
192 - fix Coro::Signal to bring back the original unreliable
193 but stateful semantics.
194 - fixed a lot of typos in Coro.pm (patch submitted by David
195 Steinbrunner, which applied flawlessly).
196
1973.6 Sat Apr 14 17:13:31 CEST 2007
198 - added some bugfixes to get eg/myhttpd working again.
199 - added Coro::Storable for often-cede'ing freeze/thaw.
200 - try to do a clean exit when a coroutine calls exit
201 (EXPERIMENTAL).
202 - got rid of indirect call through _coro_init.
203 - updated the partly antique examples in eg/ to
204 work again and be a bit less magic, too.
205 - fixed Coro::Signal semantics to work as documented again.
206
2073.55 Sun Mar 25 01:20:47 CET 2007
208 - add SAVE_DEFFH to save the default filehandle and enable
209 it by default.
210 - finally move socket-operations from Coro::Socket to Coro::Handle
211 to be able to unblock foreign sockets.
212 - add Coro::State::save_also and guarded_save.
213 - add count accessor to Coro::Semaphore.
214 - add Coro::State::cctx_stacksize.
215 - just for the fun of it, do not rely on implicit context,
216 which can dramatically improve performance, but people
217 using windows-process-emulation perls do not care much about
218 performance.
219
2203.51 Sun Mar 4 14:18:04 CET 2007
221 - fixed a problem when you weakened references to Coro::State's
222 (patch by Yuval Kogman).
223
2243.501 Wed Feb 28 12:44:07 CET 2007
225 - rename some global symbols as macosx from hell redefines
226 them without asking.
227
2283.5 Tue Feb 13 20:22:53 CET 2007
229 - do AnyEvent model detection earlier, avoiding problems
230 caused by first using AnyEvent and later Coro::Event.
231 - implement and document Coro::Event event objects.
232 - fix a potential problem in Coro::Event causing crashes.
233 - initialise PL_comppad when creating a new coroutine,
234 avoids crashes on early coro destruction.
235
2363.41 Mon Jan 22 19:19:49 CET 2007
237 - readline on Coro::Handle did not support undefined $/,
238 nor did it deliver partial lines on EOF or error.
239 - implement malloc fallback for stack allocation because
240 stupid broken idiotic OSX has a stupid broken
241 idiotic fits-the-whole-os mmap "implementation" and
242 my dick feels longer if Coro is portable even to
243 obsolete platforms.
244
2453.4 Fri Jan 19 21:52:54 CET 2007
246 - remove t/09_timer.t, as it isn't really testing much
247 but was rather flaky in practise.
248 - async_pool coro would keep arguments and callback alive until
249 it was reused.
250 - cancellation of a coroutine could cause spurious idle calls
251 in cede_notself.
252
2533.3 Sat Jan 6 03:45:00 CET 2007
254 - implement $coro->on_destroy.
255 - Coro::Event blocking semantics have been changed,
256 documented and - hopefully - improved.
257 - fix nice adding, not subtracting, from priority.
258 - fix ->prio and api_is_ready (patch by Mark Hinds).
259 - fixed an assert ("... == prev__cctx->idle_te")
260 that could errronously trigger.
261 - fix various large and small memleaks.
262 - use a (hopefully) more stable cancel implementation
263 that immediately frees the coroutine data.
264 - cede/cede_notself return a status now.
265 - added Coro::guard function.
266 - added a global coroutine pool for jobs (on my machine,
267 I can create and execute 48k simple coros/s with async,
268 and 128k coros with async_pool).
269 - Coro::AIO now uses the coroutine priority as io priority.
270
2713.2 Fri Dec 22 05:07:09 CET 2006
272 - improve portability to slightly older perls.
273 - use cleaner coroutine destruction.
274 - simplify configuration for users.
275 - optionally (unrecommended) prefer perl functions over
276 their coro replacements.
277
2783.11 Tue Dec 5 13:11:24 CET 2006
279 - fixed some bogus assert's, but as perl.h disables assert even
280 without NDEBUG (thank you very much), not too many people should
281 notice (that did include myself). Andreas König noticed, though :)
282 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
283 it. Also noticed by Andreas König :)
284 - save/restore tainted status.
285 - verified to pass the testsuite on my 5.9.5.
286
2873.1 Mon Dec 4 23:03:40 CET 2006
288 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
289 - incompatible change: transfer flags are now per-state.
290 - give a better error message on deadlock.
291 - document Coro::nready.
292 - enhanced testsuite.
293
2943.01 Sun Dec 3 23:47:42 CET 2006
295 - forgot to include Coro::Timer.
296
2973.0 Sun Dec 3 22:57:25 CET 2006
298 - the "FINALLY COMPLETELY STABLE" release (coming soon:
299 the "FAMOUS LAST WORDS" release).
300 - implement a new stack sharing algorithm, which uses a stack
301 pool (size currently hardcoded).
302 - make stack sharing mandatory (it no longer uses a heuristic).
303 - eval/die no longer cause weird problems under heavy use.
304 - Coro::Event could cause livelocks if it was used but
305 no Coro::Event watchers were used.
306 - Coro::Event now uses asynccheck as prepare does not
307 check for changed watchers.
308 - Coro::Event allows multiple waiting coros and will wake up one
309 per event.
310 - Coro::Event should be cleaner and more efficient now.
311 - new utility function Coro::unblock_sub.
312 - document the sad fact that Event is no longer reentrant.
313 - putting a coroutine into the ready queue twice could under
314 some circumstances lead to stack corruption.
315 - minor incompatibility: subclassing Coro::State is supported
316 directly now without going through a _coro_state member.
317 - state/coro switching is much faster now.
318 - very minor optimisations and code/documentation cleanup.
319 - avoid problems due to compiler inlining.
320 - removed timers from Coro::Timer -> use AnyEvent instead.
321 - replaced Coro::idle coroutine by (cleaner) idle handler.
322 - updated to newest libcoro.
323 - implement enhanced support for valgrind.
324 - implement is_ready and return value for ready.
325 - removed Coro::Cont, it was a misnomer (it's generators),
326 and it was somewhat annoying to get it right. Will come back
327 if somebody asks for it :)
328 - many ->wait methods and Coro::Event could return
329 spuriously without the event having happened.
330
3312.5 Tue Nov 7 12:22:33 CET 2006
332 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
333 use AnyEvent, moved them to Coro/.
5 - added Coro::LWP which contains all the uglyness of making LWP 334 - added Coro::LWP which contains all the uglyness required to
6 non-blocking. 335 make LWP non-blocking.
7 - should compile with perl 5.9.x now. 336 - should work with perl 5.9.x now (Andreas König made me do it).
337 - fixed another bug in Coro::Select when the timeout was undef.
8 - reuse PL_start_env for all coros, saves some memory per coroutine. 338 - reuse PL_start_env for all coros, saves some memory per coroutine.
9 - manage PL_top_env differently, hopefully to avoid panic: top_env. 339 - manage PL_top_env differently, hopefully to avoid panic: top_env.
10 - timeout argument was not properly used in Coro::Socket. 340 - timeout argument was not properly used in Coro::Socket.
11 - allow limited forms of subclassing in Coro::Handle/Coro::Socket. 341 - allow limited forms of subclassing in Coro::Handle/Coro::Socket.
12 - emulate undocumented(!) functionality of IO::Socket required 342 - emulate undocumented(!) functionality of IO::Socket required
13 by LWP(!!). 343 by LWP(!!).
14 - updated eg/lwp to work with newer lwp's. 344 - updated eg/lwp to work with newer lwp's.
15 - made Coro::Util an AnyEvent user, moved it to Coro/.
16 - remove "FATAL: uncaught exception" prefix. coroutines that die 345 - remove "FATAL: uncaught exception" prefix. Coroutines that die
17 kill the whole process, just as exceptions in the main coroutine 346 kill the whole process, just as exceptions in the main "coroutine"
18 do. 347 did already.
19 348
202.1 Wed Nov 1 23:01:13 CET 2006 3492.1 Wed Nov 1 23:01:13 CET 2006
21 - fix a long-standing bug in Coro::Select where select with 350 - fix a long-standing bug in Coro::Select where select with
22 zero timeout would instead change the current default filehandle. 351 zero timeout would instead change the current default filehandle.
23 - use a simpler and hopefully more robust way to clone padlists 352 - use a simpler and hopefully more robust way to clone padlists

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