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Comparing Coro/Changes (file contents):
Revision 1.486 by root, Sat Feb 7 22:24:51 2009 UTC vs.
Revision 1.577 by root, Tue Jul 12 22:32:27 2011 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: should explore PerlIO::coroaio (perl leaks like hell). 3TODO: should explore PerlIO::coroaio (perl leaks like hell).
4TODO: maybe implement a default message channel, very much like Erlang's 4TODO: channel->maxsize(newsize)?
5 actor model (which is cool in a lot of important aspects (failures!), 5TODO: http://www.microsoft.com/msj/archive/s2ce.aspx
6 but very lacking in others (higher level ipc)).
7 6
8TODO: suspend/resume, unready_all etc. 7 - "improve portability to Gentoo" - gentoo manages to put perl variables
8 in memory areas that are farther than 2gb apart, which the jit couldn't
9 handle and barfed. now it's just a bit slower on gentoo.
10
116.01 Sun Jul 3 12:31:14 CEST 2011
12 - workarounds are good, but the test for whether pthreads are used
13 was not good. thisone should be better.
14 - check differently whether gcc generates cfi instructions itself.
15
166.0 Wed Jun 29 19:43:35 CEST 2011
17 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
18 destroyed and cleaned up automatically (e.g. async { schedule }).
19 - implement a JIT compiler for part of the thread switch code,
20 which gives a 50% speed improvement on threaded perls, and
21 about 4% on non-thraeded perls (so threaded perls now finally
22 reach about half the speed of non-threaded perls).
23 - slightly modernise Coro::Intro, add section about rouse functions.
24 - avoid DEFSV and ERRSV, giving another 10% improvement
25 in thread switching.
26 - Coro::State->is_destroyed is now called is_zombie.
27 - implement a Coro->safe_cancel method that might fail, but
28 cancels in a "safer" way if it succeeds.
29 - add preliminary support for DEBUGGING perls.
30 - get rid of two hash-accesses when initialising a new Coro - this
31 speeds up coro creation by almost a factor of two.
32 - croak when a coro that is being cancelled tries to block
33 (e.g. while executing a guard block), instead of crashing or
34 deadlocking.
35 - use a more robust and also faster method to identify Coro::State
36 objects - speeds up everything a bit.
37 - implement Coro->cancel in XS for a 20% speed improvement, and to
38 be able to implement mutual cancellation.
39 - speed up context switches by a percent or two by more efficiently
40 allocating context stack entries.
41 - implement Coro->join and Coro->on_destroy in XS for a speedup and
42 a reduction in memory use.
43 - cancelling a coro while it itself is cancelling another coro is
44 now supported and working, instead of triggering an assertion.
45 - be a bit more crash-resistant when calling (buggy) on_destroy
46 callbacks (best effort).
47 - move on_destroy into the slf_frame, to allow extension slf
48 functions to have destructors.
49 - get rid if coro refcounting - simply crash in other interpreter
50 threads by nulling the pointers on clone.
51 - simplify warn/die hook handling when loading Coro - the convoluted
52 logic seems to be no longer neccessary.
53 - use libecb instead of our own home-grown gcc hacks.
54 - document alternatives to Coro::LWP. Please use them :)
55 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
56 sigaltstack. Really. wine suffers from it, erlang suffers from it,
57 and it's known since at least 2006.
58
595.372 Wed Feb 23 06:14:30 CET 2011
60 - apparently mingw doesn't provide a working gettimeofday, try to
61 work around that by relying on Time::HiRes (indirectly brought to
62 my attention by Max Maischein).
63 - fix some portability issues when Time::HiRes was used.
64
655.371 Mon Feb 21 14:36:08 CET 2011
66 - backport to windows process emulation code again.
67
685.37 Sat Feb 19 07:49:44 CET 2011
69 - add a big "Coro thread life cycle" section to "man Coro".
70 - try a tentative workaround against the breakage that 5.13 has
71 introduced without depreciation period. sigh.
72 - no longer use Time::HiRes if gettimeofday is available, which
73 saves quite a lot of memory.
74
755.36 Sun Feb 13 05:33:41 CET 2011
76 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
77 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
78 method call.
79 - undocument Coro::Timer::sleep and obsolete whole module.
80 - optimise Coro::Timer::timeout memory and cpu usage.
81 - slightly updated Coro::Intro for recent changes.
82 - do not initialise PL_dirty anymore.
83
845.25 Thu Nov 11 01:08:39 CET 2010
85 - try a different approach on netbsd - netbsd 5 finally has marginally
86 working pthreads, but still broken ucontext/sigaltstack.
87 - openbsd 4.8 finally got their act together, Coro works out of the box
88 with asm, setjmp and pthreads (no change, just informational).
89
905.24 Sat Oct 23 11:27:12 CEST 2010
91 - port to the EV 4.0 API.
92 - work around bugs in mingw32, making strawberry perl work
93 out of the box.
94 - correctly modify Coro::AIO function prototypes
95 so that they reflect the "no optional parameters" rule.
96 - "ported" libcoro to C++.
97
985.23 Mon May 17 18:50:42 CEST 2010
99 - be more resistant to ordering changes when initialising
100 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
101 Waldorf).
102 - document that perl 5.12 deliberately removed support for cloning.
103
1045.22 Wed Apr 14 03:55:35 CEST 2010
105 - correctly return udnef on errors in Coro::Handle::read/write
106 (testcase by Marc Mims).
107 - convert Coro::Util into a "perl compatibility wrapper" - the functions
108 are less useful now, but are drop-in replacements for existing
109 functions, listing better alternatives in the documentation. This also
110 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
111 with Coro::Util::inet_aton.
112 - do not override $Coro::idle unconditionally in Coro.pm, as other
113 modules could have provided their own idle coro already
114 (for exmaple, Coro::AnyEvent).
115 - fix Coro::Util::gethost* functions.
116 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
117
1185.21 Wed Dec 16 07:19:51 CET 2009
119 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
120 together.
121 - add some examples on how to combine other event loops with Coro in
122 Coro::AnyEvent, and how to run it (and not to block). Seems to be
123 the most common source of confusion.
124 - try to catch people naively blocking in an event callback.
125 - work around the perl filehandle bug issue in conjunction with
126 older common::sense (as indirectly pointed out by ZSystem).
127 - clarify the "not from signal handlers" section.
128
1295.2 Sun Oct 4 14:54:24 CEST 2009
130 - Coro::Storable destroyed the prototypes of the functions it wrapped.
131 - export rouse_cb and rouse_wait by default now.
132 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
133 - new method $state->swap_sv.
134 - added section on "windows process emulation" to the manpage,
135 after a not-so-fruitful (nor-friendly) "discussion" with chip
136 salzenberg (discussion implies arguments, but his only arguments
137 were ad-hominems, one wonders why he started it in the first
138 place). I hope this explains it well enough for him to understand,
139 and maybe well enough for others to understand.
140 - use common::sense everywhere now.
141 - idle callbacks are no longer supported, use idle coros instead.
142 - print a thread listing when a deadlock is detected.
143
1445.17 Sat Aug 22 23:09:31 CEST 2009
145 - work around a bug in the perl debugger causing crashes
146 when running under the debugger by marking _pool_handler as nodebug.
147 - speed up Coro::async considerably.
148 - try some hacks to get netbsd to work "more often" - their broken
149 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
150 - convert Coro to AE 5.0 API.
151
1525.162 Tue Jul 28 04:04:03 CEST 2009
153 - perl 5.8.2 is now minimum requirement.
154 - skip t/19_handle.t on broken windows perls.
155
1565.161 Wed Jul 22 04:47:38 CEST 2009
157 - Coro::AnyEvent::poll could have a different prototype when EV was
158 used as backend (analyzed by Tatsuhiko Miyagawa).
159 - Coro::AnyEvent errornously initialised the event loop when loaded,
160 not on demand.
161 - try to workaround rare */t/01_unblock.t failures.
162
1635.16 Tue Jul 21 01:44:37 CEST 2009
164 - Coro::AnyEvent failed to hook into the event loop
165 when no threads had been readied between detecting
166 the event loop and actually running it.
167 - considerably speed up Coro::Select by taking avdantage
168 of AnyEvent > 4.8 and some other optimisations.
169 - implement paragraph readline mode in Coro::Handle
170 (based on patches by Zsbán Ambrus).
171 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
172 and analyzed by Yasuhiro MATSUMOTO).
173 - clarified libcoro license and copyright.
174 - someone stole my EXTRA_META!!!
175 - implement Coro::Select::patch_pp_sselect and it's brother,
176 for hardcode select overriding.
177
1785.151 Mon Jul 6 05:41:57 CEST 2009
179 - backport to windows process emulation code again (patch by
180 Yasuhiro MATSUMOTO).
181 - slightly update Coro::MakeMaker.
182
1835.15 Tue Jun 30 10:28:06 CEST 2009
184 - deprecate Coro::Socket, document how to get ipv6 support via
185 AnyEvent::Socket instead.
186 - implement signal->wait ($cb) interface, similar to semaphores.
187 - work around SvOK not supporting getmagic, so we have to getmagic
188 to test for undef :/ (reported by Matthias Waldorf).
189 - load Coro::AnyEvent in all modules using AnyEvent.
190 - work around perl corrupting our internal data structures,
191 reported by Tokuhiro Matsuno.
192 - enable per-coroutine real and cpu time gathering
193 (Coro::State::enable_times).
194
1955.14 Wed Jun 24 01:37:48 CEST 2009
196 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
197 as this seems to have been a difficult concept (poll, sleep, idle,
198 idle_upto).
199 - add Coro::AnyEvent::readable/writable functions.
200 - clarify Coro::EV/Event/AnyEvent manpages.
201 - free per-thread global scalars in the thread calling ->cancel, to
202 avoid crashes when $_, $@ etc., are magical but some of those
203 had already been freed.
204 - "unexperimentalise" the callback interface for Coro::Semaphore.
205 - speed up ready queue management/context switching by using a linked
206 list instead of an array (~5-10%).
207 - implement "watch" command in Coro::Debug shells.
208 - for fun, implement time-slicing as an example in the manpage.
209 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
210 Coro::Event, use the normal AnyEvent handling instead of dieing
211 (the same is true for Coro::Handle).
212 - properly document Coro::EV::timed_io_once.
213 - avoid unneccessary ->cancel calls in Coro::Handle.
214 - maybe make it work on mingw32 with win32 backend
215 (based on patch by Yasuhiro Matsumoto).
216
2175.132 Fri May 29 09:00:39 CEST 2009
218 - do not keep a reference to the argument itself in
219 Coro::Semaphore::guard, as it could change later.
220 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
221 should support a prepare callback.
222
2235.131 Mon Mar 16 23:20:37 CET 2009
9 - implement and document Coro->suspend, Coro->resume. 224 - implement and document Coro->suspend, Coro->resume.
10 - fix Coro::Select implementation to not (often) close 225 - fix Coro::Select implementation to not (often) close
11 the passed file descriptors (testcase provided by pippijn). 226 the passed file descriptors (testcase provided by pippijn).
12 227
135.13 Mon Dec 15 21:51:42 CET 2008 2285.13 Mon Dec 15 21:51:42 CET 2008

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