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Comparing Coro/Changes (file contents):
Revision 1.156 by root, Sun Nov 26 03:22:50 2006 UTC vs.
Revision 1.326 by root, Wed Mar 12 21:11:35 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
84.5
9 - fix a file leaking bug in eg/mhyttpd that would allow
10 downloading of any file (reported by oesi).
11 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
12 (also add testcase).
13 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
14 apparently having loads of fun with that).
15 - implement $state->swap_defsv, ->swap_defav and document ->throw.
16
174.4 Wed Feb 13 16:44:29 CET 2008
18 - only assume .cfi pseudo isns exist on GNU/Linux.
19 - add get_timed method to Coro::Channels.
20 - fixed Coro::Debug manpage.
21 - perl 5.11 compatbility improvement based on patch by
22 Andreas König.
23
244.37 Sun Jan 20 11:25:23 CET 2008
25 - soften the check for an active parser for perl 5.10 (avoiding
26 "Coro::State::transfer called while parsing" in many cases).
27
284.36 Sun Jan 13 10:53:56 CET 2008
29 - reset diehook when terminating from an async_pool as to not
30 trigger any __DIE__ handlers.
31
324.35 Sun Jan 13 04:14:13 CET 2008
33 - "bt" debug command now displays any exceptions
34 from longmess and also skips the innermost
35 stackframes, giving more useufl output.
36 - allow backtraces in coroutines blocked in Coro::EV,
37 at a <1% speed hit.
38 - handle localising of $SIG{__WARN__} and __DIE__
39 properly (with a proper amount of dirty hacking).
40
414.34 Sat Dec 22 17:49:53 CET 2007
42 - upgrade to EV version 2.0 API.
43
444.33 Mon Dec 17 08:36:12 CET 2007
45 - make Coro::AIO etc. loadable in the absence of EV.
46
474.32 Mon Dec 17 07:46:02 CET 2007
48 - majorly improved Coro::Handle's performance with Coro::EV.
49 - implemented the until now mythical Coro::BDB module.
50 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
51
524.31 Wed Dec 5 12:32:39 CET 2007
53 - remove warn statement form Coro::Util.
54
554.3 Tue Dec 4 20:33:14 CET 2007
56 - calls to the idle function could cause stack corruption
57 when the stack changed.
58 - do no longer rely on the presence of EV::DNS if EV is used
59 (because it is gone), but instead take avdantage of EV::ADNS
60 if available.
61 - add ($) prototypes to all functions in Coro::Storable.
62 - use a conventional (safer) idle callback in Coro::EV.
63 - do accept quickly in Coro::Debug to avoid endless loops.
64
654.22 Fri Nov 30 16:04:04 CET 2007
66 - really use optimised versions for Event and EV in Coro::Util
67 and Coro::Handle.
68
694.21 Sun Nov 25 10:48:59 CET 2007
70 - fix a spurious memory read.
71 - Coro::EV no longer keeps the eventloop "alive".
72
734.2 Fri Nov 9 20:47:05 CET 2007
74 - enable/disable tracing from a new coroutine, not a pooled one.
75 - fix a memleak in Coro::Event.
76 - removed killall call from fork_eval.
77 - made sure store_fd is already loaded so that fork_eval
78 does not have to parse autoload in each subprocess.
79 - only use assembly method if -O switch is in $Config{optimize}.
80 - add (optional) Coro::EV module, so far the best event loop module
81 directly supported by Coro.
82 - if the event model is EV, use EV::DNS to resolve
83 stuff in Coro::Util.
84 - don't get confused by multiple event notifications in Coro::Handle.
85 - initial support for EV (libevent interface).
86 - require Event and EV using configure_requires, to force their existance.
87
884.13 Wed Oct 24 07:26:45 CEST 2007
89 - add Coro::Storable::blocking_thaw.
90 - use a vastly more complicated technique to localise
91 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
92 - use a coroutine for the idle callback Coro::Event,
93 instead of running Event in the current coroutine context.
94 This also catches recursive invocations.
95 - actually report fork errors in gethostbyname and inet_aton.
96
974.11 Thu Oct 11 02:40:24 CEST 2007
98 - port to threaded perls.
99
1004.1 Thu Oct 11 02:38:16 CEST 2007
101 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
102 be local to each coro (see Coro::State).
103 - incompatible change: for very deep reasons, cede and cede_notself
104 cannot return anything, so nothing will be returned.
105 - possibly bring back 5.10 compatibility (untested).
106 - work around stupid (and wrong) warning on 5.10 :(.
107 - overlay the saved state over the context stack. This saves
108 a few hundred bytes per coroutine on average and also
109 speeds up context switching a bit.
110 - further tune default stack sizes.
111 - (more) correctly calculate stack usage in coro_rss.
112 - Coro::Storable::blocking_* did not properly lock
113 resulting in races between coroutines.
114 - added Coro::Storable::guard.
115 - stopping to trace a coroutine could destroy the cctx of
116 an unrelated coroutine.
117 - explain the relationship between Perl and C coroutines in
118 more detail in Coro::State.
119 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
120 causing a fork per resolve. This also affected Coro::Socket.
121 - switch to a separate stack in $coro->call/eval to avoid
122 invalidating pointers.
123
1244.03 Sat Oct 6 21:24:00 CEST 2007
125 - added Coro::throw method.
126 - minor code cleanups.
127
1284.02 Sat Oct 6 02:36:47 CEST 2007
129 - fix a very minor per-coroutine memleak (a single codereference).
130 - fixed a bug where the currently in-use c context would be freed
131 prematurely (can happen only when programs change the stacksize
132 or use tracing).
133 - tracing can no longer keep a coro alive after it terminated.
134 - do static branch prediction in the common path for gcc. gives
135 about 2-5% speed improvement here.
136
1374.01 Fri Oct 5 22:10:49 CEST 2007
138 - instead of recreating *a* standard output handle we simply
139 use STDOUT, which is faster and hopefully more robust.
140
1414.0 Fri Oct 5 12:56:00 CEST 2007
142 - incompatibly changed Coro::Storable::freeze.
143 - major new feature: added Coro::Debug, for interactive coroutine
144 debugging, tracing and much more.
145 - major bug fix: unbelievable, but true: $_, $/ and many other
146 "saved" variables actually weren't being saved. This has been fixed,
147 of course, while increasing performance while losing all the save
148 flags.
149 - save flags are gone, and all the api functions dealing with them.
150 - added Coro::Semaphore::adjust.
151 - added Coro::Util::fork_eval.
152 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
153 - added Coro::killall.
154 - reduce initial stack sizes to allow for "micro-coroutines".
155 - better async_pool resource management, moved parts of async_pool
156 handling to XS (major speed improvement).
157 - actually croak before modifying important data structures.
158 - refuse to transfer while compiling.
159 - possibly support eval EXPR better now.
160 - enable assembly per default on linux+bsd x86+amd64.
161 - all internal members were renamed _something for easier subclassing.
162 - many minor tweaks.
163
1643.63 Wed May 16 14:10:06 CEST 2007
165 - implement handcoded assembly for x86/amd64 SVR ABI.
166
1673.62 Fri Apr 27 21:36:06 CEST 2007
168 - upgrade libcoro (which might set unwind info correctly).
169 - change default on linux to setjmp/longjmp.
170
1713.61 Thu Apr 19 12:36:18 CEST 2007
172 - Coro::Storable caused an endless loop when thawing invalid
173 pst's sometimes.
174 - use a Semaphore in Coro::Storable, as Storable doesn't
175 seem to be reentrant (although it is documented to
176 be threadsafe...).
177 - fix Coro::Signal to bring back the original unreliable
178 but stateful semantics.
179 - fixed a lot of typos in Coro.pm (patch submitted by David
180 Steinbrunner, which applied flawlessly).
181
1823.6 Sat Apr 14 17:13:31 CEST 2007
183 - added some bugfixes to get eg/myhttpd working again.
184 - added Coro::Storable for often-cede'ing freeze/thaw.
185 - try to do a clean exit when a coroutine calls exit
186 (EXPERIMENTAL).
187 - got rid of indirect call through _coro_init.
188 - updated the partly antique examples in eg/ to
189 work again and be a bit less magic, too.
190 - fixed Coro::Signal semantics to work as documented again.
191
1923.55 Sun Mar 25 01:20:47 CET 2007
193 - add SAVE_DEFFH to save the default filehandle and enable
194 it by default.
195 - finally move socket-operations from Coro::Socket to Coro::Handle
196 to be able to unblock foreign sockets.
197 - add Coro::State::save_also and guarded_save.
198 - add count accessor to Coro::Semaphore.
199 - add Coro::State::cctx_stacksize.
200 - just for the fun of it, do not rely on implicit context,
201 which can dramatically improve performance, but people
202 using windows-process-emulation perls do not care much about
203 performance.
204
2053.51 Sun Mar 4 14:18:04 CET 2007
206 - fixed a problem when you weakened references to Coro::State's
207 (patch by Yuval Kogman).
208
2093.501 Wed Feb 28 12:44:07 CET 2007
210 - rename some global symbols as macosx from hell redefines
211 them without asking.
212
2133.5 Tue Feb 13 20:22:53 CET 2007
214 - do AnyEvent model detection earlier, avoiding problems
215 caused by first using AnyEvent and later Coro::Event.
216 - implement and document Coro::Event event objects.
217 - fix a potential problem in Coro::Event causing crashes.
218 - initialise PL_comppad when creating a new coroutine,
219 avoids crashes on early coro destruction.
220
2213.41 Mon Jan 22 19:19:49 CET 2007
222 - readline on Coro::Handle did not support undefined $/,
223 nor did it deliver partial lines on EOF or error.
224 - implement malloc fallback for stack allocation because
225 stupid broken idiotic OSX has a stupid broken
226 idiotic fits-the-whole-os mmap "implementation" and
227 my dick feels longer if Coro is portable even to
228 obsolete platforms.
229
2303.4 Fri Jan 19 21:52:54 CET 2007
231 - remove t/09_timer.t, as it isn't really testing much
232 but was rather flaky in practise.
233 - async_pool coro would keep arguments and callback alive until
234 it was reused.
235 - cancellation of a coroutine could cause spurious idle calls
236 in cede_notself.
237
2383.3 Sat Jan 6 03:45:00 CET 2007
239 - implement $coro->on_destroy.
240 - Coro::Event blocking semantics have been changed,
241 documented and - hopefully - improved.
242 - fix nice adding, not subtracting, from priority.
243 - fix ->prio and api_is_ready (patch by Mark Hinds).
244 - fixed an assert ("... == prev__cctx->idle_te")
245 that could errronously trigger.
246 - fix various large and small memleaks.
247 - use a (hopefully) more stable cancel implementation
248 that immediately frees the coroutine data.
249 - cede/cede_notself return a status now.
250 - added Coro::guard function.
251 - added a global coroutine pool for jobs (on my machine,
252 I can create and execute 48k simple coros/s with async,
253 and 128k coros with async_pool).
254 - Coro::AIO now uses the coroutine priority as io priority.
255
2563.2 Fri Dec 22 05:07:09 CET 2006
257 - improve portability to slightly older perls.
258 - use cleaner coroutine destruction.
259 - simplify configuration for users.
260 - optionally (unrecommended) prefer perl functions over
261 their coro replacements.
262
2633.11 Tue Dec 5 13:11:24 CET 2006
264 - fixed some bogus assert's, but as perl.h disables assert even
265 without NDEBUG (thank you very much), not too many people should
266 notice (that did include myself). Andreas König noticed, though :)
267 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
268 it. Also noticed by Andreas König :)
269 - save/restore tainted status.
270 - verified to pass the testsuite on my 5.9.5.
271
2723.1 Mon Dec 4 23:03:40 CET 2006
273 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
274 - incompatible change: transfer flags are now per-state.
275 - give a better error message on deadlock.
276 - document Coro::nready.
277 - enhanced testsuite.
278
2793.01 Sun Dec 3 23:47:42 CET 2006
280 - forgot to include Coro::Timer.
281
2823.0 Sun Dec 3 22:57:25 CET 2006
283 - the "FINALLY COMPLETELY STABLE" release (coming soon:
284 the "FAMOUS LAST WORDS" release).
7 - reimplement a new stack sharing algorithm. 285 - implement a new stack sharing algorithm, which uses a stack
286 pool (size currently hardcoded).
8 - make stack sharing mandatory (it no longer uses a heuristic). 287 - make stack sharing mandatory (it no longer uses a heuristic).
288 - eval/die no longer cause weird problems under heavy use.
9 - Coro::Event could cause livelocks if it was used but 289 - Coro::Event could cause livelocks if it was used but
10 Event watchers were used directly. 290 no Coro::Event watchers were used.
291 - Coro::Event now uses asynccheck as prepare does not
292 check for changed watchers.
293 - Coro::Event allows multiple waiting coros and will wake up one
294 per event.
11 - Coro::Event should be cleaner and more efficient now. 295 - Coro::Event should be cleaner and more efficient now.
296 - new utility function Coro::unblock_sub.
297 - document the sad fact that Event is no longer reentrant.
298 - putting a coroutine into the ready queue twice could under
299 some circumstances lead to stack corruption.
12 - minor incompatibility: subclassing is supported directly now 300 - minor incompatibility: subclassing Coro::State is supported
13 without going through a _coro_state member. 301 directly now without going through a _coro_state member.
14 - state/coro switching is much faster now. 302 - state/coro switching is much faster now.
15 - very minor optimisations and code/documentation cleanup. 303 - very minor optimisations and code/documentation cleanup.
16 - avoid problems due to compiler inlining. 304 - avoid problems due to compiler inlining.
17 - removed timers from Coro::Timer -> use AnyEvent instead. 305 - removed timers from Coro::Timer -> use AnyEvent instead.
18 - replaced Coro::idle coroutine by (cleaner) idle handler. 306 - replaced Coro::idle coroutine by (cleaner) idle handler.
19 - updated to newest libcoro. 307 - updated to newest libcoro.
308 - implement enhanced support for valgrind.
309 - implement is_ready and return value for ready.
310 - removed Coro::Cont, it was a misnomer (it's generators),
311 and it was somewhat annoying to get it right. Will come back
312 if somebody asks for it :)
313 - many ->wait methods and Coro::Event could return
314 spuriously without the event having happened.
20 315
212.5 Tue Nov 7 12:22:33 CET 2006 3162.5 Tue Nov 7 12:22:33 CET 2006
22 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket 317 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
23 use AnyEvent, moved them to Coro/. 318 use AnyEvent, moved them to Coro/.
24 - added Coro::LWP which contains all the uglyness required to 319 - added Coro::LWP which contains all the uglyness required to

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