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Comparing Coro/Changes (file contents):
Revision 1.157 by root, Sun Nov 26 17:35:42 2006 UTC vs.
Revision 1.328 by root, Fri Apr 4 20:07:34 2008 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: check wether stack-sharing is still effective 3TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO.
4TODO: more effective stack sharing by having one "default stack" for "simple" coroutines? 4TODO: maybe implement a default message channel, very much like Erlang's
5TODO: verify exception frame changes and force stack copies? 5 actor model (which is cool in a lot of important aspects (failures!),
6 but very lacking in others (higher level ipc)).
6 7
84.46 Fri Apr 4 22:05:43 CEST 2008
9 - upgrade libcoro, resulting in pthread-backend (which was only created
10 to fulfill the rules of the programming languages shootout).
11
124.45 Thu Mar 13 11:55:36 CET 2008
13 - fix a file leaking bug in eg/mhyttpd that would allow
14 downloading of any file (reported by oesi).
15 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
16 (also add testcase).
17 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
18 apparently having loads of fun with that).
19 - implement $state->swap_defsv, ->swap_defav and document ->throw.
20
214.4 Wed Feb 13 16:44:29 CET 2008
22 - only assume .cfi pseudo isns exist on GNU/Linux.
23 - add get_timed method to Coro::Channels.
24 - fixed Coro::Debug manpage.
25 - perl 5.11 compatbility improvement based on patch by
26 Andreas König.
27
284.37 Sun Jan 20 11:25:23 CET 2008
29 - soften the check for an active parser for perl 5.10 (avoiding
30 "Coro::State::transfer called while parsing" in many cases).
31
324.36 Sun Jan 13 10:53:56 CET 2008
33 - reset diehook when terminating from an async_pool as to not
34 trigger any __DIE__ handlers.
35
364.35 Sun Jan 13 04:14:13 CET 2008
37 - "bt" debug command now displays any exceptions
38 from longmess and also skips the innermost
39 stackframes, giving more useufl output.
40 - allow backtraces in coroutines blocked in Coro::EV,
41 at a <1% speed hit.
42 - handle localising of $SIG{__WARN__} and __DIE__
43 properly (with a proper amount of dirty hacking).
44
454.34 Sat Dec 22 17:49:53 CET 2007
46 - upgrade to EV version 2.0 API.
47
484.33 Mon Dec 17 08:36:12 CET 2007
49 - make Coro::AIO etc. loadable in the absence of EV.
50
514.32 Mon Dec 17 07:46:02 CET 2007
52 - majorly improved Coro::Handle's performance with Coro::EV.
53 - implemented the until now mythical Coro::BDB module.
54 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
55
564.31 Wed Dec 5 12:32:39 CET 2007
57 - remove warn statement form Coro::Util.
58
594.3 Tue Dec 4 20:33:14 CET 2007
60 - calls to the idle function could cause stack corruption
61 when the stack changed.
62 - do no longer rely on the presence of EV::DNS if EV is used
63 (because it is gone), but instead take avdantage of EV::ADNS
64 if available.
65 - add ($) prototypes to all functions in Coro::Storable.
66 - use a conventional (safer) idle callback in Coro::EV.
67 - do accept quickly in Coro::Debug to avoid endless loops.
68
694.22 Fri Nov 30 16:04:04 CET 2007
70 - really use optimised versions for Event and EV in Coro::Util
71 and Coro::Handle.
72
734.21 Sun Nov 25 10:48:59 CET 2007
74 - fix a spurious memory read.
75 - Coro::EV no longer keeps the eventloop "alive".
76
774.2 Fri Nov 9 20:47:05 CET 2007
78 - enable/disable tracing from a new coroutine, not a pooled one.
79 - fix a memleak in Coro::Event.
80 - removed killall call from fork_eval.
81 - made sure store_fd is already loaded so that fork_eval
82 does not have to parse autoload in each subprocess.
83 - only use assembly method if -O switch is in $Config{optimize}.
84 - add (optional) Coro::EV module, so far the best event loop module
85 directly supported by Coro.
86 - if the event model is EV, use EV::DNS to resolve
87 stuff in Coro::Util.
88 - don't get confused by multiple event notifications in Coro::Handle.
89 - initial support for EV (libevent interface).
90 - require Event and EV using configure_requires, to force their existance.
91
924.13 Wed Oct 24 07:26:45 CEST 2007
93 - add Coro::Storable::blocking_thaw.
94 - use a vastly more complicated technique to localise
95 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
96 - use a coroutine for the idle callback Coro::Event,
97 instead of running Event in the current coroutine context.
98 This also catches recursive invocations.
99 - actually report fork errors in gethostbyname and inet_aton.
100
1014.11 Thu Oct 11 02:40:24 CEST 2007
102 - port to threaded perls.
103
1044.1 Thu Oct 11 02:38:16 CEST 2007
105 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
106 be local to each coro (see Coro::State).
107 - incompatible change: for very deep reasons, cede and cede_notself
108 cannot return anything, so nothing will be returned.
109 - possibly bring back 5.10 compatibility (untested).
110 - work around stupid (and wrong) warning on 5.10 :(.
111 - overlay the saved state over the context stack. This saves
112 a few hundred bytes per coroutine on average and also
113 speeds up context switching a bit.
114 - further tune default stack sizes.
115 - (more) correctly calculate stack usage in coro_rss.
116 - Coro::Storable::blocking_* did not properly lock
117 resulting in races between coroutines.
118 - added Coro::Storable::guard.
119 - stopping to trace a coroutine could destroy the cctx of
120 an unrelated coroutine.
121 - explain the relationship between Perl and C coroutines in
122 more detail in Coro::State.
123 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
124 causing a fork per resolve. This also affected Coro::Socket.
125 - switch to a separate stack in $coro->call/eval to avoid
126 invalidating pointers.
127
1284.03 Sat Oct 6 21:24:00 CEST 2007
129 - added Coro::throw method.
130 - minor code cleanups.
131
1324.02 Sat Oct 6 02:36:47 CEST 2007
133 - fix a very minor per-coroutine memleak (a single codereference).
134 - fixed a bug where the currently in-use c context would be freed
135 prematurely (can happen only when programs change the stacksize
136 or use tracing).
137 - tracing can no longer keep a coro alive after it terminated.
138 - do static branch prediction in the common path for gcc. gives
139 about 2-5% speed improvement here.
140
1414.01 Fri Oct 5 22:10:49 CEST 2007
142 - instead of recreating *a* standard output handle we simply
143 use STDOUT, which is faster and hopefully more robust.
144
1454.0 Fri Oct 5 12:56:00 CEST 2007
146 - incompatibly changed Coro::Storable::freeze.
147 - major new feature: added Coro::Debug, for interactive coroutine
148 debugging, tracing and much more.
149 - major bug fix: unbelievable, but true: $_, $/ and many other
150 "saved" variables actually weren't being saved. This has been fixed,
151 of course, while increasing performance while losing all the save
152 flags.
153 - save flags are gone, and all the api functions dealing with them.
154 - added Coro::Semaphore::adjust.
155 - added Coro::Util::fork_eval.
156 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
157 - added Coro::killall.
158 - reduce initial stack sizes to allow for "micro-coroutines".
159 - better async_pool resource management, moved parts of async_pool
160 handling to XS (major speed improvement).
161 - actually croak before modifying important data structures.
162 - refuse to transfer while compiling.
163 - possibly support eval EXPR better now.
164 - enable assembly per default on linux+bsd x86+amd64.
165 - all internal members were renamed _something for easier subclassing.
166 - many minor tweaks.
167
1683.63 Wed May 16 14:10:06 CEST 2007
169 - implement handcoded assembly for x86/amd64 SVR ABI.
170
1713.62 Fri Apr 27 21:36:06 CEST 2007
172 - upgrade libcoro (which might set unwind info correctly).
173 - change default on linux to setjmp/longjmp.
174
1753.61 Thu Apr 19 12:36:18 CEST 2007
176 - Coro::Storable caused an endless loop when thawing invalid
177 pst's sometimes.
178 - use a Semaphore in Coro::Storable, as Storable doesn't
179 seem to be reentrant (although it is documented to
180 be threadsafe...).
181 - fix Coro::Signal to bring back the original unreliable
182 but stateful semantics.
183 - fixed a lot of typos in Coro.pm (patch submitted by David
184 Steinbrunner, which applied flawlessly).
185
1863.6 Sat Apr 14 17:13:31 CEST 2007
187 - added some bugfixes to get eg/myhttpd working again.
188 - added Coro::Storable for often-cede'ing freeze/thaw.
189 - try to do a clean exit when a coroutine calls exit
190 (EXPERIMENTAL).
191 - got rid of indirect call through _coro_init.
192 - updated the partly antique examples in eg/ to
193 work again and be a bit less magic, too.
194 - fixed Coro::Signal semantics to work as documented again.
195
1963.55 Sun Mar 25 01:20:47 CET 2007
197 - add SAVE_DEFFH to save the default filehandle and enable
198 it by default.
199 - finally move socket-operations from Coro::Socket to Coro::Handle
200 to be able to unblock foreign sockets.
201 - add Coro::State::save_also and guarded_save.
202 - add count accessor to Coro::Semaphore.
203 - add Coro::State::cctx_stacksize.
204 - just for the fun of it, do not rely on implicit context,
205 which can dramatically improve performance, but people
206 using windows-process-emulation perls do not care much about
207 performance.
208
2093.51 Sun Mar 4 14:18:04 CET 2007
210 - fixed a problem when you weakened references to Coro::State's
211 (patch by Yuval Kogman).
212
2133.501 Wed Feb 28 12:44:07 CET 2007
214 - rename some global symbols as macosx from hell redefines
215 them without asking.
216
2173.5 Tue Feb 13 20:22:53 CET 2007
218 - do AnyEvent model detection earlier, avoiding problems
219 caused by first using AnyEvent and later Coro::Event.
220 - implement and document Coro::Event event objects.
221 - fix a potential problem in Coro::Event causing crashes.
222 - initialise PL_comppad when creating a new coroutine,
223 avoids crashes on early coro destruction.
224
2253.41 Mon Jan 22 19:19:49 CET 2007
226 - readline on Coro::Handle did not support undefined $/,
227 nor did it deliver partial lines on EOF or error.
228 - implement malloc fallback for stack allocation because
229 stupid broken idiotic OSX has a stupid broken
230 idiotic fits-the-whole-os mmap "implementation" and
231 my dick feels longer if Coro is portable even to
232 obsolete platforms.
233
2343.4 Fri Jan 19 21:52:54 CET 2007
235 - remove t/09_timer.t, as it isn't really testing much
236 but was rather flaky in practise.
237 - async_pool coro would keep arguments and callback alive until
238 it was reused.
239 - cancellation of a coroutine could cause spurious idle calls
240 in cede_notself.
241
2423.3 Sat Jan 6 03:45:00 CET 2007
243 - implement $coro->on_destroy.
244 - Coro::Event blocking semantics have been changed,
245 documented and - hopefully - improved.
246 - fix nice adding, not subtracting, from priority.
247 - fix ->prio and api_is_ready (patch by Mark Hinds).
248 - fixed an assert ("... == prev__cctx->idle_te")
249 that could errronously trigger.
250 - fix various large and small memleaks.
251 - use a (hopefully) more stable cancel implementation
252 that immediately frees the coroutine data.
253 - cede/cede_notself return a status now.
254 - added Coro::guard function.
255 - added a global coroutine pool for jobs (on my machine,
256 I can create and execute 48k simple coros/s with async,
257 and 128k coros with async_pool).
258 - Coro::AIO now uses the coroutine priority as io priority.
259
2603.2 Fri Dec 22 05:07:09 CET 2006
261 - improve portability to slightly older perls.
262 - use cleaner coroutine destruction.
263 - simplify configuration for users.
264 - optionally (unrecommended) prefer perl functions over
265 their coro replacements.
266
2673.11 Tue Dec 5 13:11:24 CET 2006
268 - fixed some bogus assert's, but as perl.h disables assert even
269 without NDEBUG (thank you very much), not too many people should
270 notice (that did include myself). Andreas König noticed, though :)
271 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
272 it. Also noticed by Andreas König :)
273 - save/restore tainted status.
274 - verified to pass the testsuite on my 5.9.5.
275
2763.1 Mon Dec 4 23:03:40 CET 2006
277 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
278 - incompatible change: transfer flags are now per-state.
279 - give a better error message on deadlock.
280 - document Coro::nready.
281 - enhanced testsuite.
282
2833.01 Sun Dec 3 23:47:42 CET 2006
284 - forgot to include Coro::Timer.
285
2863.0 Sun Dec 3 22:57:25 CET 2006
287 - the "FINALLY COMPLETELY STABLE" release (coming soon:
288 the "FAMOUS LAST WORDS" release).
7 - reimplement a new stack sharing algorithm. 289 - implement a new stack sharing algorithm, which uses a stack
290 pool (size currently hardcoded).
8 - make stack sharing mandatory (it no longer uses a heuristic). 291 - make stack sharing mandatory (it no longer uses a heuristic).
9 - eval/die no longer cause weird problems under heavy use. 292 - eval/die no longer cause weird problems under heavy use.
10 - Coro::Event could cause livelocks if it was used but 293 - Coro::Event could cause livelocks if it was used but
11 Event watchers were used directly. 294 no Coro::Event watchers were used.
295 - Coro::Event now uses asynccheck as prepare does not
296 check for changed watchers.
297 - Coro::Event allows multiple waiting coros and will wake up one
298 per event.
12 - Coro::Event should be cleaner and more efficient now. 299 - Coro::Event should be cleaner and more efficient now.
300 - new utility function Coro::unblock_sub.
301 - document the sad fact that Event is no longer reentrant.
302 - putting a coroutine into the ready queue twice could under
303 some circumstances lead to stack corruption.
13 - minor incompatibility: subclassing is supported directly now 304 - minor incompatibility: subclassing Coro::State is supported
14 without going through a _coro_state member. 305 directly now without going through a _coro_state member.
15 - state/coro switching is much faster now. 306 - state/coro switching is much faster now.
16 - very minor optimisations and code/documentation cleanup. 307 - very minor optimisations and code/documentation cleanup.
17 - avoid problems due to compiler inlining. 308 - avoid problems due to compiler inlining.
18 - removed timers from Coro::Timer -> use AnyEvent instead. 309 - removed timers from Coro::Timer -> use AnyEvent instead.
19 - replaced Coro::idle coroutine by (cleaner) idle handler. 310 - replaced Coro::idle coroutine by (cleaner) idle handler.
20 - updated to newest libcoro. 311 - updated to newest libcoro.
312 - implement enhanced support for valgrind.
313 - implement is_ready and return value for ready.
314 - removed Coro::Cont, it was a misnomer (it's generators),
315 and it was somewhat annoying to get it right. Will come back
316 if somebody asks for it :)
317 - many ->wait methods and Coro::Event could return
318 spuriously without the event having happened.
21 319
222.5 Tue Nov 7 12:22:33 CET 2006 3202.5 Tue Nov 7 12:22:33 CET 2006
23 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket 321 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
24 use AnyEvent, moved them to Coro/. 322 use AnyEvent, moved them to Coro/.
25 - added Coro::LWP which contains all the uglyness required to 323 - added Coro::LWP which contains all the uglyness required to

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