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Comparing Coro/Changes (file contents):
Revision 1.149 by root, Mon Nov 20 22:26:16 2006 UTC vs.
Revision 1.325 by root, Wed Mar 12 21:11:13 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
7 - minor documentation cleanup. 8 - fix a file leaking bug in eg/mhyttpd that would allow
9 downloading of any file (reported by oesi).
10 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
11 (also add testcase).
12 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
13 apparently having loads of fun with that).
14 - implement $state->swap_defsv, ->swap_defav and document ->throw.
15
164.4 Wed Feb 13 16:44:29 CET 2008
17 - only assume .cfi pseudo isns exist on GNU/Linux.
18 - add get_timed method to Coro::Channels.
19 - fixed Coro::Debug manpage.
20 - perl 5.11 compatbility improvement based on patch by
21 Andreas König.
22
234.37 Sun Jan 20 11:25:23 CET 2008
24 - soften the check for an active parser for perl 5.10 (avoiding
25 "Coro::State::transfer called while parsing" in many cases).
26
274.36 Sun Jan 13 10:53:56 CET 2008
28 - reset diehook when terminating from an async_pool as to not
29 trigger any __DIE__ handlers.
30
314.35 Sun Jan 13 04:14:13 CET 2008
32 - "bt" debug command now displays any exceptions
33 from longmess and also skips the innermost
34 stackframes, giving more useufl output.
35 - allow backtraces in coroutines blocked in Coro::EV,
36 at a <1% speed hit.
37 - handle localising of $SIG{__WARN__} and __DIE__
38 properly (with a proper amount of dirty hacking).
39
404.34 Sat Dec 22 17:49:53 CET 2007
41 - upgrade to EV version 2.0 API.
42
434.33 Mon Dec 17 08:36:12 CET 2007
44 - make Coro::AIO etc. loadable in the absence of EV.
45
464.32 Mon Dec 17 07:46:02 CET 2007
47 - majorly improved Coro::Handle's performance with Coro::EV.
48 - implemented the until now mythical Coro::BDB module.
49 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
50
514.31 Wed Dec 5 12:32:39 CET 2007
52 - remove warn statement form Coro::Util.
53
544.3 Tue Dec 4 20:33:14 CET 2007
55 - calls to the idle function could cause stack corruption
56 when the stack changed.
57 - do no longer rely on the presence of EV::DNS if EV is used
58 (because it is gone), but instead take avdantage of EV::ADNS
59 if available.
60 - add ($) prototypes to all functions in Coro::Storable.
61 - use a conventional (safer) idle callback in Coro::EV.
62 - do accept quickly in Coro::Debug to avoid endless loops.
63
644.22 Fri Nov 30 16:04:04 CET 2007
65 - really use optimised versions for Event and EV in Coro::Util
66 and Coro::Handle.
67
684.21 Sun Nov 25 10:48:59 CET 2007
69 - fix a spurious memory read.
70 - Coro::EV no longer keeps the eventloop "alive".
71
724.2 Fri Nov 9 20:47:05 CET 2007
73 - enable/disable tracing from a new coroutine, not a pooled one.
74 - fix a memleak in Coro::Event.
75 - removed killall call from fork_eval.
76 - made sure store_fd is already loaded so that fork_eval
77 does not have to parse autoload in each subprocess.
78 - only use assembly method if -O switch is in $Config{optimize}.
79 - add (optional) Coro::EV module, so far the best event loop module
80 directly supported by Coro.
81 - if the event model is EV, use EV::DNS to resolve
82 stuff in Coro::Util.
83 - don't get confused by multiple event notifications in Coro::Handle.
84 - initial support for EV (libevent interface).
85 - require Event and EV using configure_requires, to force their existance.
86
874.13 Wed Oct 24 07:26:45 CEST 2007
88 - add Coro::Storable::blocking_thaw.
89 - use a vastly more complicated technique to localise
90 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
91 - use a coroutine for the idle callback Coro::Event,
92 instead of running Event in the current coroutine context.
93 This also catches recursive invocations.
94 - actually report fork errors in gethostbyname and inet_aton.
95
964.11 Thu Oct 11 02:40:24 CEST 2007
97 - port to threaded perls.
98
994.1 Thu Oct 11 02:38:16 CEST 2007
100 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
101 be local to each coro (see Coro::State).
102 - incompatible change: for very deep reasons, cede and cede_notself
103 cannot return anything, so nothing will be returned.
104 - possibly bring back 5.10 compatibility (untested).
105 - work around stupid (and wrong) warning on 5.10 :(.
106 - overlay the saved state over the context stack. This saves
107 a few hundred bytes per coroutine on average and also
108 speeds up context switching a bit.
109 - further tune default stack sizes.
110 - (more) correctly calculate stack usage in coro_rss.
111 - Coro::Storable::blocking_* did not properly lock
112 resulting in races between coroutines.
113 - added Coro::Storable::guard.
114 - stopping to trace a coroutine could destroy the cctx of
115 an unrelated coroutine.
116 - explain the relationship between Perl and C coroutines in
117 more detail in Coro::State.
118 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
119 causing a fork per resolve. This also affected Coro::Socket.
120 - switch to a separate stack in $coro->call/eval to avoid
121 invalidating pointers.
122
1234.03 Sat Oct 6 21:24:00 CEST 2007
124 - added Coro::throw method.
125 - minor code cleanups.
126
1274.02 Sat Oct 6 02:36:47 CEST 2007
128 - fix a very minor per-coroutine memleak (a single codereference).
129 - fixed a bug where the currently in-use c context would be freed
130 prematurely (can happen only when programs change the stacksize
131 or use tracing).
132 - tracing can no longer keep a coro alive after it terminated.
133 - do static branch prediction in the common path for gcc. gives
134 about 2-5% speed improvement here.
135
1364.01 Fri Oct 5 22:10:49 CEST 2007
137 - instead of recreating *a* standard output handle we simply
138 use STDOUT, which is faster and hopefully more robust.
139
1404.0 Fri Oct 5 12:56:00 CEST 2007
141 - incompatibly changed Coro::Storable::freeze.
142 - major new feature: added Coro::Debug, for interactive coroutine
143 debugging, tracing and much more.
144 - major bug fix: unbelievable, but true: $_, $/ and many other
145 "saved" variables actually weren't being saved. This has been fixed,
146 of course, while increasing performance while losing all the save
147 flags.
148 - save flags are gone, and all the api functions dealing with them.
149 - added Coro::Semaphore::adjust.
150 - added Coro::Util::fork_eval.
151 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
152 - added Coro::killall.
153 - reduce initial stack sizes to allow for "micro-coroutines".
154 - better async_pool resource management, moved parts of async_pool
155 handling to XS (major speed improvement).
156 - actually croak before modifying important data structures.
157 - refuse to transfer while compiling.
158 - possibly support eval EXPR better now.
159 - enable assembly per default on linux+bsd x86+amd64.
160 - all internal members were renamed _something for easier subclassing.
161 - many minor tweaks.
162
1633.63 Wed May 16 14:10:06 CEST 2007
164 - implement handcoded assembly for x86/amd64 SVR ABI.
165
1663.62 Fri Apr 27 21:36:06 CEST 2007
167 - upgrade libcoro (which might set unwind info correctly).
168 - change default on linux to setjmp/longjmp.
169
1703.61 Thu Apr 19 12:36:18 CEST 2007
171 - Coro::Storable caused an endless loop when thawing invalid
172 pst's sometimes.
173 - use a Semaphore in Coro::Storable, as Storable doesn't
174 seem to be reentrant (although it is documented to
175 be threadsafe...).
176 - fix Coro::Signal to bring back the original unreliable
177 but stateful semantics.
178 - fixed a lot of typos in Coro.pm (patch submitted by David
179 Steinbrunner, which applied flawlessly).
180
1813.6 Sat Apr 14 17:13:31 CEST 2007
182 - added some bugfixes to get eg/myhttpd working again.
183 - added Coro::Storable for often-cede'ing freeze/thaw.
184 - try to do a clean exit when a coroutine calls exit
185 (EXPERIMENTAL).
186 - got rid of indirect call through _coro_init.
187 - updated the partly antique examples in eg/ to
188 work again and be a bit less magic, too.
189 - fixed Coro::Signal semantics to work as documented again.
190
1913.55 Sun Mar 25 01:20:47 CET 2007
192 - add SAVE_DEFFH to save the default filehandle and enable
193 it by default.
194 - finally move socket-operations from Coro::Socket to Coro::Handle
195 to be able to unblock foreign sockets.
196 - add Coro::State::save_also and guarded_save.
197 - add count accessor to Coro::Semaphore.
198 - add Coro::State::cctx_stacksize.
199 - just for the fun of it, do not rely on implicit context,
200 which can dramatically improve performance, but people
201 using windows-process-emulation perls do not care much about
202 performance.
203
2043.51 Sun Mar 4 14:18:04 CET 2007
205 - fixed a problem when you weakened references to Coro::State's
206 (patch by Yuval Kogman).
207
2083.501 Wed Feb 28 12:44:07 CET 2007
209 - rename some global symbols as macosx from hell redefines
210 them without asking.
211
2123.5 Tue Feb 13 20:22:53 CET 2007
213 - do AnyEvent model detection earlier, avoiding problems
214 caused by first using AnyEvent and later Coro::Event.
215 - implement and document Coro::Event event objects.
216 - fix a potential problem in Coro::Event causing crashes.
217 - initialise PL_comppad when creating a new coroutine,
218 avoids crashes on early coro destruction.
219
2203.41 Mon Jan 22 19:19:49 CET 2007
221 - readline on Coro::Handle did not support undefined $/,
222 nor did it deliver partial lines on EOF or error.
223 - implement malloc fallback for stack allocation because
224 stupid broken idiotic OSX has a stupid broken
225 idiotic fits-the-whole-os mmap "implementation" and
226 my dick feels longer if Coro is portable even to
227 obsolete platforms.
228
2293.4 Fri Jan 19 21:52:54 CET 2007
230 - remove t/09_timer.t, as it isn't really testing much
231 but was rather flaky in practise.
232 - async_pool coro would keep arguments and callback alive until
233 it was reused.
234 - cancellation of a coroutine could cause spurious idle calls
235 in cede_notself.
236
2373.3 Sat Jan 6 03:45:00 CET 2007
238 - implement $coro->on_destroy.
239 - Coro::Event blocking semantics have been changed,
240 documented and - hopefully - improved.
241 - fix nice adding, not subtracting, from priority.
242 - fix ->prio and api_is_ready (patch by Mark Hinds).
243 - fixed an assert ("... == prev__cctx->idle_te")
244 that could errronously trigger.
245 - fix various large and small memleaks.
246 - use a (hopefully) more stable cancel implementation
247 that immediately frees the coroutine data.
248 - cede/cede_notself return a status now.
249 - added Coro::guard function.
250 - added a global coroutine pool for jobs (on my machine,
251 I can create and execute 48k simple coros/s with async,
252 and 128k coros with async_pool).
253 - Coro::AIO now uses the coroutine priority as io priority.
254
2553.2 Fri Dec 22 05:07:09 CET 2006
256 - improve portability to slightly older perls.
257 - use cleaner coroutine destruction.
258 - simplify configuration for users.
259 - optionally (unrecommended) prefer perl functions over
260 their coro replacements.
261
2623.11 Tue Dec 5 13:11:24 CET 2006
263 - fixed some bogus assert's, but as perl.h disables assert even
264 without NDEBUG (thank you very much), not too many people should
265 notice (that did include myself). Andreas König noticed, though :)
266 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
267 it. Also noticed by Andreas König :)
268 - save/restore tainted status.
269 - verified to pass the testsuite on my 5.9.5.
270
2713.1 Mon Dec 4 23:03:40 CET 2006
272 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
273 - incompatible change: transfer flags are now per-state.
274 - give a better error message on deadlock.
275 - document Coro::nready.
276 - enhanced testsuite.
277
2783.01 Sun Dec 3 23:47:42 CET 2006
279 - forgot to include Coro::Timer.
280
2813.0 Sun Dec 3 22:57:25 CET 2006
282 - the "FINALLY COMPLETELY STABLE" release (coming soon:
283 the "FAMOUS LAST WORDS" release).
284 - implement a new stack sharing algorithm, which uses a stack
285 pool (size currently hardcoded).
286 - make stack sharing mandatory (it no longer uses a heuristic).
287 - eval/die no longer cause weird problems under heavy use.
288 - Coro::Event could cause livelocks if it was used but
289 no Coro::Event watchers were used.
290 - Coro::Event now uses asynccheck as prepare does not
291 check for changed watchers.
292 - Coro::Event allows multiple waiting coros and will wake up one
293 per event.
294 - Coro::Event should be cleaner and more efficient now.
295 - new utility function Coro::unblock_sub.
296 - document the sad fact that Event is no longer reentrant.
297 - putting a coroutine into the ready queue twice could under
298 some circumstances lead to stack corruption.
299 - minor incompatibility: subclassing Coro::State is supported
300 directly now without going through a _coro_state member.
301 - state/coro switching is much faster now.
302 - very minor optimisations and code/documentation cleanup.
303 - avoid problems due to compiler inlining.
304 - removed timers from Coro::Timer -> use AnyEvent instead.
305 - replaced Coro::idle coroutine by (cleaner) idle handler.
306 - updated to newest libcoro.
307 - implement enhanced support for valgrind.
308 - implement is_ready and return value for ready.
309 - removed Coro::Cont, it was a misnomer (it's generators),
310 and it was somewhat annoying to get it right. Will come back
311 if somebody asks for it :)
312 - many ->wait methods and Coro::Event could return
313 spuriously without the event having happened.
8 314
92.5 Tue Nov 7 12:22:33 CET 2006 3152.5 Tue Nov 7 12:22:33 CET 2006
10 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket 316 - made Coro::Util, Coro::Select, Coro::Handle and Coro::Socket
11 use AnyEvent, moved them to Coro/. 317 use AnyEvent, moved them to Coro/.
12 - added Coro::LWP which contains all the uglyness required to 318 - added Coro::LWP which contains all the uglyness required to

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