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Comparing Coro/Changes (file contents):
Revision 1.387 by root, Mon Nov 3 16:17:30 2008 UTC vs.
Revision 1.517 by root, Thu Jul 23 01:35:18 2009 UTC

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: maybe implement a default message channel, very much like Erlang's
5 actor model (which is cool in a lot of important aspects (failures!), 5 actor model (which is cool in a lot of important aspects (failures!),
6 but very lacking in others (higher level ipc)). 6 but very lacking in others (higher level ipc)).
7TODO: unready_all
8TODO: myhttpd header parsing
9TODO: channel->maxsize(newsize)?
10
11 - perl 5.8.2 is now minimum requirement.
12
135.161 Wed Jul 22 04:47:38 CEST 2009
14 - Coro::AnyEvent::poll could have a different prototype when EV was
15 used as backend (analyzed by Tatsuhiko Miyagawa).
16 - Coro::AnyEvent errornously initialised the event loop when loaded,
17 not on demand.
18 - try to workaround rare */t/01_unblock.t failures.
19
205.16 Tue Jul 21 01:44:37 CEST 2009
21 - Coro::AnyEvent failed to hook into the event loop
22 when no threads had been readied between detecting
23 the event loop and actually running it.
24 - considerably speed up Coro::Select by taking avdantage
25 of AnyEvent > 4.8 and some other optimisations.
26 - implement paragraph readline mode in Coro::Handle
27 (based on patches by Zsbán Ambrus).
28 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
29 and analyzed by Yasuhiro MATSUMOTO).
30 - clarified libcoro license and copyright.
31 - someone stole my EXTRA_META!!!
32 - implement Coro::Select::patch_pp_sselect and it's brother,
33 for hardcode select overriding.
34
355.151 Mon Jul 6 05:41:57 CEST 2009
36 - backport to windows process emulation code again (patch by
37 Yasuhiro MATSUMOTO).
38 - slightly update Coro::MakeMaker.
39
405.15 Tue Jun 30 10:28:06 CEST 2009
41 - deprecate Coro::Socket, document how to get ipv6 support via
42 AnyEvent::Socket instead.
43 - implement signal->wait ($cb) interface, similar to semaphores.
44 - work around SvOK not supporting getmagic, so we have to getmagic
45 to test for undef :/ (reported by Matthias Waldorf).
46 - load Coro::AnyEvent in all modules using AnyEvent.
47 - work around perl corrupting our internal data structures,
48 reported by Tokuhiro Matsuno.
49 - enable per-coroutine real and cpu time gathering
50 (Coro::State::enable_times).
51
525.14 Wed Jun 24 01:37:48 CEST 2009
53 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
54 as this seems to have been a difficult concept (poll, sleep, idle,
55 idle_upto).
56 - add Coro::AnyEvent::readable/writable functions.
57 - clarify Coro::EV/Event/AnyEvent manpages.
58 - free per-thread global scalars in the thread calling ->cancel, to
59 avoid crashes when $_, $@ etc., are magical but some of those
60 had already been freed.
61 - "unexperimentalise" the callback interface for Coro::Semaphore.
62 - speed up ready queue management/context switching by using a linked
63 list instead of an array (~5-10%).
64 - implement "watch" command in Coro::Debug shells.
65 - for fun, implement time-slicing as an example in the manpage.
66 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
67 Coro::Event, use the normal AnyEvent handling instead of dieing
68 (the same is true for Coro::Handle).
69 - properly document Coro::EV::timed_io_once.
70 - avoid unneccessary ->cancel calls in Coro::Handle.
71 - maybe make it work on mingw32 with win32 backend
72 (based on patch by Yasuhiro Matsumoto).
73
745.132 Fri May 29 09:00:39 CEST 2009
75 - do not keep a reference to the argument itself in
76 Coro::Semaphore::guard, as it could change later.
77 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
78 should support a prepare callback.
79
805.131 Mon Mar 16 23:20:37 CET 2009
81 - implement and document Coro->suspend, Coro->resume.
82 - fix Coro::Select implementation to not (often) close
83 the passed file descriptors (testcase provided by pippijn).
84
855.13 Mon Dec 15 21:51:42 CET 2008
86 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
87 - don't set diehook to C<undef> but instead to NULL, to avoid
88 spurious warnings.
89 - fix a lot of bugs in Coro::SemaphoreSet.
90 - Coro::SemaphoreSet will less often create a semaphore needlessly.
91 - add Coro::SemaphoreSet::count and wait methods.
92 - take advantage of the new Guard module.
93 - deprecate Coro::guard.
94 - try to fix the dreaded 01_unblock tests once more. I hate it when
95 testsuites need more fixing than the code they are supposed to test.
96 - croak in more cases when a required callback isn't resolvable.
97 - fix some minor issues in Coro::State->call/eval.
98 - use current coroutine context instead of a temporary one
99 when temporarily switching to another coroutine.
100 - do not call C-level on_destroy handlers during global destruction,
101 to avoid needless segfaults.
102
1035.12 Sun Dec 7 13:30:38 CET 2008
104 - add default config for MirOS, which seems to be a bug-to-bug
105 compatible fork of openbsd ("world domination by releasing
106 openbsd cvs before the openbsd folks do it" or so :).
107 - free_padlist did destroy the names pad, not good, but didn't
108 seem to bother perl - this could fix issues such as eval ""
109 inside a function called from multiple coroutines.
110 - use a different method to detect destruction time.
111 - be more careful when freeing padlists just before global
112 destruction.
113 - fixed and expanded the call/cc example.
114 - renamed _terminate to _coro_run.
115 - new method Coro::Channel->shutdown.
116 - try pthreads on openbsd <4.4 (broken sigaltstack, will
117 pthreads fare better?).
118 - be less picky about destroying "a" running coroutine.
119
1205.11 Tue Nov 25 21:49:05 CET 2008
121 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
122 working code with failed assertions, introducing more bugs than
123 it fixes, requiring elaborate workarounds :(
124
1255.1 Mon Nov 24 08:54:59 CET 2008
126 - wrote a small introductory tutorial - Coro::Intro.
127 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
128 - Coro::Select did errornously dup the file descriptors
129 and didn't work with all AnyEvent backends.
130 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
131 LWP data transfers.
132 - disassociate c contexts from coro objects - this is agruably more
133 correct, but mostly allows sharing of cctxs between coro and state
134 objects, for added memory savings and speed increases.
135 - bumped $Coro::POOL_RSS up to 32kb by default.
136 - no longer set the optype to OP_CUSTOM, as B::* understandably
137 doesn't like this very much (and we *are* a type of entersub).
138 - implement state cloning, just to prove that call/cc can be done.
139 - automatically load Coro::AnyEvent in Coro::Handle.
140 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
141 do not have this method (and don't need it either).
142 - speed up generic anyevent methods in Coro::Handle by using rouse
143 callbacks.
144 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
145 others. It also makes the debugger happier, as you can trace
146 through the idle threads now.
147 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
148 - eg/event was pretty broken.
149 - better 5.8.6 compatibility.
150
1515.0 Thu Nov 20 10:35:05 CET 2008
152 - NEW ARCHITECTURE: use the latest 4.x version if you experience
153 stability issues.
154 - bump API version to 7 - all dependents must be recompiled.
155 - removed timed_* functions - they were not being used anyways
156 and should be replaced by a more generic mechanism -
157 and were annoying to support anyways :)
158 - removed SemaphoreSet's waiter method - use sem method instead.
159 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
160 - async_pool did free a scalar value twice
161 ("Attempt to unreference...").
162 - fix a longstanding bug where calling terminate on a coro that
163 was waiting for a semaphore that was just becoming available
164 would cause a deadlock (semaphore would get into a state where
165 it was available but waiters were still blocked).
166 - calling throw on a coroutine that is waiting for a semaphore will
167 no longer make it acquire the semaphore (and thus leak a count).
168 - perl's process emulation is now not even theoretically supported
169 anymore.
170 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
171 conversion of callback-style to blocking-style.
172 - new methods $coro->schedule_to and ->cede_to, to specifically
173 schedule or cede to a specific coroutine.
174 - new function Coro::Semaphore::wait.
175 - use named constants in Coro::Channel (Richard Hundt).
176 - directly patch the entersub opcode calling SLF functions (cede,
177 transfer and so on). this does speed up context switching, but
178 more importanly, it frees us from the hardcoded behaviour of
179 entersub, so we might actually be able to return something from
180 those functions and atcually create new ones.
181 - take advantage of __builtin_frame_address on gcc.
182 - expose THX in coroapi (not sure whether this was a wise decision,
183 as "threaded" perls are running at half speed anyways).
184 - implement execute_slf (schedule-like-function) interface that makes
185 it possible to implement schedule-like-functions in XS.
186 - use new SLF interface to massively speed up Coro::EV by roughly a
187 factor of two.
188 - used new SLF interface to massively speed up Coro::Semaphore by a
189 factor of three.
190 - used new SLF interface to speed up Coro::AIO by roughly a factor of
191 four and reduce its memory usage considerably.
192 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
193 for a nice speedup and vastly more correct behaviour. Also implement
194 a new method "sem" to get at the underlying semaphore object.
195 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
196 (in comparison) 20-40% speedup.
197 - used new SLF interface to reimplement Coro::Signal gaining
198 some unknown (because I was too lazy), but certain, speedup, and also
199 making signals reliable for the first time.
200 - used new SLF interface and other optimisations to speed up async_pool
201 by a factor of two. It also doesn't rely on perl's exception mechanism
202 to exit anymore. The overhead for terminating an async_pool, coro over
203 a normal async is now very small.
204 - sped up coroutine creation/destruction by 40%.
205 - forgot to include Coro/libcoro/README in the dist for all these years.
206 - work around a freebsd pthreads bug (manual testcancel is required as
207 pthread_cond_wait isn't a cancellation point on freebsd).
208 - use new rouse functions to speed up and simplify Coro::BDB.
209 - make "prefer perl native functions" work with threaded perls.
210 - condense Coro::Debug ps output, hint at v and w flags.
211 - (libcoro) lots of minor cleanups and portability improvements.
212
2134.914 Wed Nov 19 12:54:18 CET 2008
214 - fix a disastrous bug in the readline optimisation
215 introduced in 4.801.
216
2174.913 Sat Nov 15 07:58:28 CET 2008
218 - async_pool did free a scalar value twice
219 ("Attempt to unreference...").
220
2214.912 Thu Nov 13 18:31:23 CET 2008
222 - minor cleanups.
223 - use much larger stacks on linux and perl < 5.8.8.
224 - Coro::Debug::new_unix_server did not unlink the socket
225 when destroyed.
226
2274.911 Tue Nov 11 04:26:17 CET 2008
228 - "port" to threaded perls.
229
2304.91 Mon Nov 10 05:36:38 CET 2008
231 - the ->throw exception object no longer leaks.
232 - creating a new cctx leaked a scopestack entry (memleak).
233 - new coroutines didn't get created with a zero flags field
234 (unknown impact).
235 - calling ->throw on a not-yet-started coroutine should now work
236 instead of being ignored.
237 - ->throw is now supported on Coro::State objects.
238 - clean up cctx creation code a bit.
239 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
240
2414.9 Sat Nov 8 17:45:27 CET 2008
242 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
243 - (libcoro) no longer leak threads in the experimental pthread backend,
244 also speed it up considerably.
245 - (libcoro) do not rely on makecontext passing void *'s unscathed.
246 - fix compiletime dependencies on libcoro in the Makefile.
247 - cctx_count wasn't always updated properly.
248 - Coro::State::cctx_stacksize wasn't applied correctly.
249 - new function Coro::State::cctx_max_idle.
250 - the default max number of idle C contexts is now 4.
251 - (libcoro) try harder to get _setjmp/_longjmp.
252 - (libcoro) cleanup and extend the libcoro API to officially
253 allow the creation of empty source contexts.
254 - very experimental workaround for the totally broken netbsd platform.
255 - tried to hack around openbsd bugs.
256
2574.804 Wed Nov 5 16:36:00 CET 2008
258 - Coro::Debug::new_unix_server would not create a non-blocking listening
259 socket, sometimes causing freezes.
260 - (libcoro) fix misaligned stack points for setjmp and assembly
261 methods, which can cause crashes on x86/x86_64 with a sufficiently
262 aggressive compiler.
263 - new function: Coro::Debug::new_tcp_server.
264 - move ->throw into the Coro class because it only works on coro objects.
7 265
84.803 Mon Nov 3 17:16:12 CET 2008 2664.803 Mon Nov 3 17:16:12 CET 2008
9 - use a global asm statement to become independent of gcc otpimisations 267 - (libcoro) use a global asm statement to become independent of gcc
10 for CORO_ASM (thanks to pippijn for the idea). 268 otpimisations for CORO_ASM (thanks to pippijn for the idea).
11 - try to workaround yet another broken bsd, this time dragonfly. 269 - try to workaround yet another broken bsd, this time dragonfly.
12 270
134.802 Thu Oct 30 10:56:12 CET 2008 2714.802 Thu Oct 30 10:56:12 CET 2008
14 - support -fno-omit-frame-pointer on x86 with the assembly method. 272 - support -fno-omit-frame-pointer on x86 with the assembly method.
15 - tune 01_unblock.t tests a bit. 273 - tune 01_unblock.t tests a bit.

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