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Comparing Coro/Changes (file contents):
Revision 1.157 by root, Sun Nov 26 17:35:42 2006 UTC vs.
Revision 1.314 by root, Sun Jan 13 09:47:22 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
5TODO: verify exception frame changes and force stack copies? 5 (which is cool in a lot of important aspects (failures!),
6 but very lacking in others (higher level ipc)).
6 7
8 - reset diehook when terminating from an async_pool as to not
9 trigger any __DIE__ handlers.
10
114.35 Sun Jan 13 04:14:13 CET 2008
12 - "bt" debug command now displays any exceptions
13 from longmess and also skips the innermost
14 stackframes, giving more useufl output.
15 - allow backtraces in coroutines blocked in Coro::EV,
16 at a <1% speed hit.
17 - handle localising of $SIG{__WARN__} and __DIE__
18 properly (with a proper amount of dirty hacking).
19
204.34 Sat Dec 22 17:49:53 CET 2007
21 - upgrade to EV version 2.0 API.
22
234.33 Mon Dec 17 08:36:12 CET 2007
24 - make Coro::AIO etc. loadable in the absence of EV.
25
264.32 Mon Dec 17 07:46:02 CET 2007
27 - majorly improved Coro::Handle's performance with Coro::EV.
28 - implemented the until now mythical Coro::BDB module.
29 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
30
314.31 Wed Dec 5 12:32:39 CET 2007
32 - remove warn statement form Coro::Util.
33
344.3 Tue Dec 4 20:33:14 CET 2007
35 - calls to the idle function could cause stack corruption
36 when the stack changed.
37 - do no longer rely on the presence of EV::DNS if EV is used
38 (because it is gone), but instead take avdantage of EV::ADNS
39 if available.
40 - add ($) prototypes to all functions in Coro::Storable.
41 - use a conventional (safer) idle callback in Coro::EV.
42 - do accept quickly in Coro::Debug to avoid endless loops.
43
444.22 Fri Nov 30 16:04:04 CET 2007
45 - really use optimised versions for Event and EV in Coro::Util
46 and Coro::Handle.
47
484.21 Sun Nov 25 10:48:59 CET 2007
49 - fix a spurious memory read.
50 - Coro::EV no longer keeps the eventloop "alive".
51
524.2 Fri Nov 9 20:47:05 CET 2007
53 - enable/disable tracing from a new coroutine, not a pooled one.
54 - fix a memleak in Coro::Event.
55 - removed killall call from fork_eval.
56 - made sure store_fd is already loaded so that fork_eval
57 does not have to parse autoload in each subprocess.
58 - only use assembly method if -O switch is in $Config{optimize}.
59 - add (optional) Coro::EV module, so far the best event loop module
60 directly supported by Coro.
61 - if the event model is EV, use EV::DNS to resolve
62 stuff in Coro::Util.
63 - don't get confused by multiple event notifications in Coro::Handle.
64 - initial support for EV (libevent interface).
65 - require Event and EV using configure_requires, to force their existance.
66
674.13 Wed Oct 24 07:26:45 CEST 2007
68 - add Coro::Storable::blocking_thaw.
69 - use a vastly more complicated technique to localise
70 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
71 - use a coroutine for the idle callback Coro::Event,
72 instead of running Event in the current coroutine context.
73 This also catches recursive invocations.
74 - actually report fork errors in gethostbyname and inet_aton.
75
764.11 Thu Oct 11 02:40:24 CEST 2007
77 - port to threaded perls.
78
794.1 Thu Oct 11 02:38:16 CEST 2007
80 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
81 be local to each coro (see Coro::State).
82 - incompatible change: for very deep reasons, cede and cede_notself
83 cannot return anything, so nothing will be returned.
84 - possibly bring back 5.10 compatibility (untested).
85 - work around stupid (and wrong) warning on 5.10 :(.
86 - overlay the saved state over the context stack. This saves
87 a few hundred bytes per coroutine on average and also
88 speeds up context switching a bit.
89 - further tune default stack sizes.
90 - (more) correctly calculate stack usage in coro_rss.
91 - Coro::Storable::blocking_* did not properly lock
92 resulting in races between coroutines.
93 - added Coro::Storable::guard.
94 - stopping to trace a coroutine could destroy the cctx of
95 an unrelated coroutine.
96 - explain the relationship between Perl and C coroutines in
97 more detail in Coro::State.
98 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
99 causing a fork per resolve. This also affected Coro::Socket.
100 - switch to a separate stack in $coro->call/eval to avoid
101 invalidating pointers.
102
1034.03 Sat Oct 6 21:24:00 CEST 2007
104 - added Coro::throw method.
105 - minor code cleanups.
106
1074.02 Sat Oct 6 02:36:47 CEST 2007
108 - fix a very minor per-coroutine memleak (a single codereference).
109 - fixed a bug where the currently in-use c context would be freed
110 prematurely (can happen only when programs change the stacksize
111 or use tracing).
112 - tracing can no longer keep a coro alive after it terminated.
113 - do static branch prediction in the common path for gcc. gives
114 about 2-5% speed improvement here.
115
1164.01 Fri Oct 5 22:10:49 CEST 2007
117 - instead of recreating *a* standard output handle we simply
118 use STDOUT, which is faster and hopefully more robust.
119
1204.0 Fri Oct 5 12:56:00 CEST 2007
121 - incompatibly changed Coro::Storable::freeze.
122 - major new feature: added Coro::Debug, for interactive coroutine
123 debugging, tracing and much more.
124 - major bug fix: unbelievable, but true: $_, $/ and many other
125 "saved" variables actually weren't being saved. This has been fixed,
126 of course, while increasing performance while losing all the save
127 flags.
128 - save flags are gone, and all the api functions dealing with them.
129 - added Coro::Semaphore::adjust.
130 - added Coro::Util::fork_eval.
131 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
132 - added Coro::killall.
133 - reduce initial stack sizes to allow for "micro-coroutines".
134 - better async_pool resource management, moved parts of async_pool
135 handling to XS (major speed improvement).
136 - actually croak before modifying important data structures.
137 - refuse to transfer while compiling.
138 - possibly support eval EXPR better now.
139 - enable assembly per default on linux+bsd x86+amd64.
140 - all internal members were renamed _something for easier subclassing.
141 - many minor tweaks.
142
1433.63 Wed May 16 14:10:06 CEST 2007
144 - implement handcoded assembly for x86/amd64 SVR ABI.
145
1463.62 Fri Apr 27 21:36:06 CEST 2007
147 - upgrade libcoro (which might set unwind info correctly).
148 - change default on linux to setjmp/longjmp.
149
1503.61 Thu Apr 19 12:36:18 CEST 2007
151 - Coro::Storable caused an endless loop when thawing invalid
152 pst's sometimes.
153 - use a Semaphore in Coro::Storable, as Storable doesn't
154 seem to be reentrant (although it is documented to
155 be threadsafe...).
156 - fix Coro::Signal to bring back the original unreliable
157 but stateful semantics.
158 - fixed a lot of typos in Coro.pm (patch submitted by David
159 Steinbrunner, which applied flawlessly).
160
1613.6 Sat Apr 14 17:13:31 CEST 2007
162 - added some bugfixes to get eg/myhttpd working again.
163 - added Coro::Storable for often-cede'ing freeze/thaw.
164 - try to do a clean exit when a coroutine calls exit
165 (EXPERIMENTAL).
166 - got rid of indirect call through _coro_init.
167 - updated the partly antique examples in eg/ to
168 work again and be a bit less magic, too.
169 - fixed Coro::Signal semantics to work as documented again.
170
1713.55 Sun Mar 25 01:20:47 CET 2007
172 - add SAVE_DEFFH to save the default filehandle and enable
173 it by default.
174 - finally move socket-operations from Coro::Socket to Coro::Handle
175 to be able to unblock foreign sockets.
176 - add Coro::State::save_also and guarded_save.
177 - add count accessor to Coro::Semaphore.
178 - add Coro::State::cctx_stacksize.
179 - just for the fun of it, do not rely on implicit context,
180 which can dramatically improve performance, but people
181 using windows-process-emulation perls do not care much about
182 performance.
183
1843.51 Sun Mar 4 14:18:04 CET 2007
185 - fixed a problem when you weakened references to Coro::State's
186 (patch by Yuval Kogman).
187
1883.501 Wed Feb 28 12:44:07 CET 2007
189 - rename some global symbols as macosx from hell redefines
190 them without asking.
191
1923.5 Tue Feb 13 20:22:53 CET 2007
193 - do AnyEvent model detection earlier, avoiding problems
194 caused by first using AnyEvent and later Coro::Event.
195 - implement and document Coro::Event event objects.
196 - fix a potential problem in Coro::Event causing crashes.
197 - initialise PL_comppad when creating a new coroutine,
198 avoids crashes on early coro destruction.
199
2003.41 Mon Jan 22 19:19:49 CET 2007
201 - readline on Coro::Handle did not support undefined $/,
202 nor did it deliver partial lines on EOF or error.
203 - implement malloc fallback for stack allocation because
204 stupid broken idiotic OSX has a stupid broken
205 idiotic fits-the-whole-os mmap "implementation" and
206 my dick feels longer if Coro is portable even to
207 obsolete platforms.
208
2093.4 Fri Jan 19 21:52:54 CET 2007
210 - remove t/09_timer.t, as it isn't really testing much
211 but was rather flaky in practise.
212 - async_pool coro would keep arguments and callback alive until
213 it was reused.
214 - cancellation of a coroutine could cause spurious idle calls
215 in cede_notself.
216
2173.3 Sat Jan 6 03:45:00 CET 2007
218 - implement $coro->on_destroy.
219 - Coro::Event blocking semantics have been changed,
220 documented and - hopefully - improved.
221 - fix nice adding, not subtracting, from priority.
222 - fix ->prio and api_is_ready (patch by Mark Hinds).
223 - fixed an assert ("... == prev__cctx->idle_te")
224 that could errronously trigger.
225 - fix various large and small memleaks.
226 - use a (hopefully) more stable cancel implementation
227 that immediately frees the coroutine data.
228 - cede/cede_notself return a status now.
229 - added Coro::guard function.
230 - added a global coroutine pool for jobs (on my machine,
231 I can create and execute 48k simple coros/s with async,
232 and 128k coros with async_pool).
233 - Coro::AIO now uses the coroutine priority as io priority.
234
2353.2 Fri Dec 22 05:07:09 CET 2006
236 - improve portability to slightly older perls.
237 - use cleaner coroutine destruction.
238 - simplify configuration for users.
239 - optionally (unrecommended) prefer perl functions over
240 their coro replacements.
241
2423.11 Tue Dec 5 13:11:24 CET 2006
243 - fixed some bogus assert's, but as perl.h disables assert even
244 without NDEBUG (thank you very much), not too many people should
245 notice (that did include myself). Andreas König noticed, though :)
246 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
247 it. Also noticed by Andreas König :)
248 - save/restore tainted status.
249 - verified to pass the testsuite on my 5.9.5.
250
2513.1 Mon Dec 4 23:03:40 CET 2006
252 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
253 - incompatible change: transfer flags are now per-state.
254 - give a better error message on deadlock.
255 - document Coro::nready.
256 - enhanced testsuite.
257
2583.01 Sun Dec 3 23:47:42 CET 2006
259 - forgot to include Coro::Timer.
260
2613.0 Sun Dec 3 22:57:25 CET 2006
262 - the "FINALLY COMPLETELY STABLE" release (coming soon:
263 the "FAMOUS LAST WORDS" release).
7 - reimplement a new stack sharing algorithm. 264 - implement a new stack sharing algorithm, which uses a stack
265 pool (size currently hardcoded).
8 - make stack sharing mandatory (it no longer uses a heuristic). 266 - make stack sharing mandatory (it no longer uses a heuristic).
9 - eval/die no longer cause weird problems under heavy use. 267 - eval/die no longer cause weird problems under heavy use.
10 - Coro::Event could cause livelocks if it was used but 268 - Coro::Event could cause livelocks if it was used but
11 Event watchers were used directly. 269 no Coro::Event watchers were used.
270 - Coro::Event now uses asynccheck as prepare does not
271 check for changed watchers.
272 - Coro::Event allows multiple waiting coros and will wake up one
273 per event.
12 - Coro::Event should be cleaner and more efficient now. 274 - Coro::Event should be cleaner and more efficient now.
275 - new utility function Coro::unblock_sub.
276 - document the sad fact that Event is no longer reentrant.
277 - putting a coroutine into the ready queue twice could under
278 some circumstances lead to stack corruption.
13 - minor incompatibility: subclassing is supported directly now 279 - minor incompatibility: subclassing Coro::State is supported
14 without going through a _coro_state member. 280 directly now without going through a _coro_state member.
15 - state/coro switching is much faster now. 281 - state/coro switching is much faster now.
16 - very minor optimisations and code/documentation cleanup. 282 - very minor optimisations and code/documentation cleanup.
17 - avoid problems due to compiler inlining. 283 - avoid problems due to compiler inlining.
18 - removed timers from Coro::Timer -> use AnyEvent instead. 284 - removed timers from Coro::Timer -> use AnyEvent instead.
19 - replaced Coro::idle coroutine by (cleaner) idle handler. 285 - replaced Coro::idle coroutine by (cleaner) idle handler.
20 - updated to newest libcoro. 286 - updated to newest libcoro.
287 - implement enhanced support for valgrind.
288 - implement is_ready and return value for ready.
289 - removed Coro::Cont, it was a misnomer (it's generators),
290 and it was somewhat annoying to get it right. Will come back
291 if somebody asks for it :)
292 - many ->wait methods and Coro::Event could return
293 spuriously without the event having happened.
21 294
222.5 Tue Nov 7 12:22:33 CET 2006 2952.5 Tue Nov 7 12:22:33 CET 2006
23 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket 296 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
24 use AnyEvent, moved them to Coro/. 297 use AnyEvent, moved them to Coro/.
25 - added Coro::LWP which contains all the uglyness required to 298 - added Coro::LWP which contains all the uglyness required to

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