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Comparing Coro/Changes (file contents):
Revision 1.174 by root, Mon Dec 4 03:54:44 2006 UTC vs.
Revision 1.332 by root, Sun Apr 6 18:39:02 2008 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: transfer flags must be per state 3TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO.
4TODO: better (earlier) error messages on broken transfer's 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)).
5 7
63. 84.48 Sun Apr 6 20:36:46 CEST 2008
9 - allow coroutine switches during eval's under 5.10.x, as it seems
10 the parser is a per-interpreter option now, so this is safe
11 (this might fix the odd crashing bug).
12 - drop support for 5.9.x versions: they are dead, jim.
13
144.47 Sun Apr 6 00:37:52 CEST 2008
15 - force cctx allocation on API calls: we know we need to force one
16 and gcc actually manages to confuse our heuristic nowadays,
17 leading to crashes and worse.
18 - document force_cctx.
19
204.46 Fri Apr 4 22:05:43 CEST 2008
21 - upgrade libcoro, resulting in pthread-backend (which was only created
22 to fulfill the rules of the programming languages shootout).
23
244.45 Thu Mar 13 11:55:36 CET 2008
25 - fix a file leaking bug in eg/mhyttpd that would allow
26 downloading of any file (reported by oesi).
27 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
28 (also add testcase).
29 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
30 apparently having loads of fun with that).
31 - implement $state->swap_defsv, ->swap_defav and document ->throw.
32
334.4 Wed Feb 13 16:44:29 CET 2008
34 - only assume .cfi pseudo isns exist on GNU/Linux.
35 - add get_timed method to Coro::Channels.
36 - fixed Coro::Debug manpage.
37 - perl 5.11 compatbility improvement based on patch by
38 Andreas König.
39
404.37 Sun Jan 20 11:25:23 CET 2008
41 - soften the check for an active parser for perl 5.10 (avoiding
42 "Coro::State::transfer called while parsing" in many cases).
43
444.36 Sun Jan 13 10:53:56 CET 2008
45 - reset diehook when terminating from an async_pool as to not
46 trigger any __DIE__ handlers.
47
484.35 Sun Jan 13 04:14:13 CET 2008
49 - "bt" debug command now displays any exceptions
50 from longmess and also skips the innermost
51 stackframes, giving more useufl output.
52 - allow backtraces in coroutines blocked in Coro::EV,
53 at a <1% speed hit.
54 - handle localising of $SIG{__WARN__} and __DIE__
55 properly (with a proper amount of dirty hacking).
56
574.34 Sat Dec 22 17:49:53 CET 2007
58 - upgrade to EV version 2.0 API.
59
604.33 Mon Dec 17 08:36:12 CET 2007
61 - make Coro::AIO etc. loadable in the absence of EV.
62
634.32 Mon Dec 17 07:46:02 CET 2007
64 - majorly improved Coro::Handle's performance with Coro::EV.
65 - implemented the until now mythical Coro::BDB module.
66 - specialcase EV in Coro::AIO and Coro::BDB for extra speed.
67
684.31 Wed Dec 5 12:32:39 CET 2007
69 - remove warn statement form Coro::Util.
70
714.3 Tue Dec 4 20:33:14 CET 2007
72 - calls to the idle function could cause stack corruption
73 when the stack changed.
74 - do no longer rely on the presence of EV::DNS if EV is used
75 (because it is gone), but instead take avdantage of EV::ADNS
76 if available.
77 - add ($) prototypes to all functions in Coro::Storable.
78 - use a conventional (safer) idle callback in Coro::EV.
79 - do accept quickly in Coro::Debug to avoid endless loops.
80
814.22 Fri Nov 30 16:04:04 CET 2007
82 - really use optimised versions for Event and EV in Coro::Util
83 and Coro::Handle.
84
854.21 Sun Nov 25 10:48:59 CET 2007
86 - fix a spurious memory read.
87 - Coro::EV no longer keeps the eventloop "alive".
88
894.2 Fri Nov 9 20:47:05 CET 2007
90 - enable/disable tracing from a new coroutine, not a pooled one.
91 - fix a memleak in Coro::Event.
92 - removed killall call from fork_eval.
93 - made sure store_fd is already loaded so that fork_eval
94 does not have to parse autoload in each subprocess.
95 - only use assembly method if -O switch is in $Config{optimize}.
96 - add (optional) Coro::EV module, so far the best event loop module
97 directly supported by Coro.
98 - if the event model is EV, use EV::DNS to resolve
99 stuff in Coro::Util.
100 - don't get confused by multiple event notifications in Coro::Handle.
101 - initial support for EV (libevent interface).
102 - require Event and EV using configure_requires, to force their existance.
103
1044.13 Wed Oct 24 07:26:45 CEST 2007
105 - add Coro::Storable::blocking_thaw.
106 - use a vastly more complicated technique to localise
107 $SIG{__WARN/DIE__} that also works on perls <= 5.8.8.
108 - use a coroutine for the idle callback Coro::Event,
109 instead of running Event in the current coroutine context.
110 This also catches recursive invocations.
111 - actually report fork errors in gethostbyname and inet_aton.
112
1134.11 Thu Oct 11 02:40:24 CEST 2007
114 - port to threaded perls.
115
1164.1 Thu Oct 11 02:38:16 CEST 2007
117 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
118 be local to each coro (see Coro::State).
119 - incompatible change: for very deep reasons, cede and cede_notself
120 cannot return anything, so nothing will be returned.
121 - possibly bring back 5.10 compatibility (untested).
122 - work around stupid (and wrong) warning on 5.10 :(.
123 - overlay the saved state over the context stack. This saves
124 a few hundred bytes per coroutine on average and also
125 speeds up context switching a bit.
126 - further tune default stack sizes.
127 - (more) correctly calculate stack usage in coro_rss.
128 - Coro::Storable::blocking_* did not properly lock
129 resulting in races between coroutines.
130 - added Coro::Storable::guard.
131 - stopping to trace a coroutine could destroy the cctx of
132 an unrelated coroutine.
133 - explain the relationship between Perl and C coroutines in
134 more detail in Coro::State.
135 - Coro::Util::inet_aton did not short-circuit dotted quad forms,
136 causing a fork per resolve. This also affected Coro::Socket.
137 - switch to a separate stack in $coro->call/eval to avoid
138 invalidating pointers.
139
1404.03 Sat Oct 6 21:24:00 CEST 2007
141 - added Coro::throw method.
142 - minor code cleanups.
143
1444.02 Sat Oct 6 02:36:47 CEST 2007
145 - fix a very minor per-coroutine memleak (a single codereference).
146 - fixed a bug where the currently in-use c context would be freed
147 prematurely (can happen only when programs change the stacksize
148 or use tracing).
149 - tracing can no longer keep a coro alive after it terminated.
150 - do static branch prediction in the common path for gcc. gives
151 about 2-5% speed improvement here.
152
1534.01 Fri Oct 5 22:10:49 CEST 2007
154 - instead of recreating *a* standard output handle we simply
155 use STDOUT, which is faster and hopefully more robust.
156
1574.0 Fri Oct 5 12:56:00 CEST 2007
158 - incompatibly changed Coro::Storable::freeze.
159 - major new feature: added Coro::Debug, for interactive coroutine
160 debugging, tracing and much more.
161 - major bug fix: unbelievable, but true: $_, $/ and many other
162 "saved" variables actually weren't being saved. This has been fixed,
163 of course, while increasing performance while losing all the save
164 flags.
165 - save flags are gone, and all the api functions dealing with them.
166 - added Coro::Semaphore::adjust.
167 - added Coro::Util::fork_eval.
168 - added Coro::Storable::{nfreeze,blocking_{freeze,nfreeze}}.
169 - added Coro::killall.
170 - reduce initial stack sizes to allow for "micro-coroutines".
171 - better async_pool resource management, moved parts of async_pool
172 handling to XS (major speed improvement).
173 - actually croak before modifying important data structures.
174 - refuse to transfer while compiling.
175 - possibly support eval EXPR better now.
176 - enable assembly per default on linux+bsd x86+amd64.
177 - all internal members were renamed _something for easier subclassing.
178 - many minor tweaks.
179
1803.63 Wed May 16 14:10:06 CEST 2007
181 - implement handcoded assembly for x86/amd64 SVR ABI.
182
1833.62 Fri Apr 27 21:36:06 CEST 2007
184 - upgrade libcoro (which might set unwind info correctly).
185 - change default on linux to setjmp/longjmp.
186
1873.61 Thu Apr 19 12:36:18 CEST 2007
188 - Coro::Storable caused an endless loop when thawing invalid
189 pst's sometimes.
190 - use a Semaphore in Coro::Storable, as Storable doesn't
191 seem to be reentrant (although it is documented to
192 be threadsafe...).
193 - fix Coro::Signal to bring back the original unreliable
194 but stateful semantics.
195 - fixed a lot of typos in Coro.pm (patch submitted by David
196 Steinbrunner, which applied flawlessly).
197
1983.6 Sat Apr 14 17:13:31 CEST 2007
199 - added some bugfixes to get eg/myhttpd working again.
200 - added Coro::Storable for often-cede'ing freeze/thaw.
201 - try to do a clean exit when a coroutine calls exit
202 (EXPERIMENTAL).
203 - got rid of indirect call through _coro_init.
204 - updated the partly antique examples in eg/ to
205 work again and be a bit less magic, too.
206 - fixed Coro::Signal semantics to work as documented again.
207
2083.55 Sun Mar 25 01:20:47 CET 2007
209 - add SAVE_DEFFH to save the default filehandle and enable
210 it by default.
211 - finally move socket-operations from Coro::Socket to Coro::Handle
212 to be able to unblock foreign sockets.
213 - add Coro::State::save_also and guarded_save.
214 - add count accessor to Coro::Semaphore.
215 - add Coro::State::cctx_stacksize.
216 - just for the fun of it, do not rely on implicit context,
217 which can dramatically improve performance, but people
218 using windows-process-emulation perls do not care much about
219 performance.
220
2213.51 Sun Mar 4 14:18:04 CET 2007
222 - fixed a problem when you weakened references to Coro::State's
223 (patch by Yuval Kogman).
224
2253.501 Wed Feb 28 12:44:07 CET 2007
226 - rename some global symbols as macosx from hell redefines
227 them without asking.
228
2293.5 Tue Feb 13 20:22:53 CET 2007
230 - do AnyEvent model detection earlier, avoiding problems
231 caused by first using AnyEvent and later Coro::Event.
232 - implement and document Coro::Event event objects.
233 - fix a potential problem in Coro::Event causing crashes.
234 - initialise PL_comppad when creating a new coroutine,
235 avoids crashes on early coro destruction.
236
2373.41 Mon Jan 22 19:19:49 CET 2007
238 - readline on Coro::Handle did not support undefined $/,
239 nor did it deliver partial lines on EOF or error.
240 - implement malloc fallback for stack allocation because
241 stupid broken idiotic OSX has a stupid broken
242 idiotic fits-the-whole-os mmap "implementation" and
243 my dick feels longer if Coro is portable even to
244 obsolete platforms.
245
2463.4 Fri Jan 19 21:52:54 CET 2007
247 - remove t/09_timer.t, as it isn't really testing much
248 but was rather flaky in practise.
249 - async_pool coro would keep arguments and callback alive until
250 it was reused.
251 - cancellation of a coroutine could cause spurious idle calls
252 in cede_notself.
253
2543.3 Sat Jan 6 03:45:00 CET 2007
255 - implement $coro->on_destroy.
256 - Coro::Event blocking semantics have been changed,
257 documented and - hopefully - improved.
258 - fix nice adding, not subtracting, from priority.
259 - fix ->prio and api_is_ready (patch by Mark Hinds).
260 - fixed an assert ("... == prev__cctx->idle_te")
261 that could errronously trigger.
262 - fix various large and small memleaks.
263 - use a (hopefully) more stable cancel implementation
264 that immediately frees the coroutine data.
265 - cede/cede_notself return a status now.
266 - added Coro::guard function.
267 - added a global coroutine pool for jobs (on my machine,
268 I can create and execute 48k simple coros/s with async,
269 and 128k coros with async_pool).
270 - Coro::AIO now uses the coroutine priority as io priority.
271
2723.2 Fri Dec 22 05:07:09 CET 2006
273 - improve portability to slightly older perls.
274 - use cleaner coroutine destruction.
275 - simplify configuration for users.
276 - optionally (unrecommended) prefer perl functions over
277 their coro replacements.
278
2793.11 Tue Dec 5 13:11:24 CET 2006
280 - fixed some bogus assert's, but as perl.h disables assert even
281 without NDEBUG (thank you very much), not too many people should
282 notice (that did include myself). Andreas König noticed, though :)
283 - do not save/restore PL_sortcxix on >= 5.9.x, it doesn't seem to have
284 it. Also noticed by Andreas König :)
285 - save/restore tainted status.
286 - verified to pass the testsuite on my 5.9.5.
287
2883.1 Mon Dec 4 23:03:40 CET 2006
289 - INCOMPATIBLE CHANGE: $/ is now per-coroutine (but slow).
290 - incompatible change: transfer flags are now per-state.
7 - give a better error message on deadlock. 291 - give a better error message on deadlock.
292 - document Coro::nready.
8 - enhanced testsuite. 293 - enhanced testsuite.
9 294
103.01 Sun Dec 3 23:47:42 CET 2006 2953.01 Sun Dec 3 23:47:42 CET 2006
11 - forgot to include Coro::Timer. 296 - forgot to include Coro::Timer.
12 297

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