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Comparing Coro/Changes (file contents):
Revision 1.442 by root, Wed Nov 19 15:09:57 2008 UTC vs.
Revision 1.556 by root, Fri Apr 29 17:38:56 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)). 6TODO: cancel calling another coro that cancels ourselves => crash (CF_DELAYCANCEL?) -> canceltest
7 7
8TODO: async_pool to SLF 8 - implement Coro->cancel in XS for a 20% speed improvement, and to
95.0 9 be able to implement mutual cancellation.
10 - cancelling a coro while it itself is cancelling another coro is
11 now supported and working, instead of triggering an assertion.
12 - be a bit more crash-resistant when calling (buggy) on_destroy
13 callbacks (best effort).
14
155.372 Wed Feb 23 06:14:30 CET 2011
16 - apparently mingw doesn't provide a working gettimeofday, try to
17 work around that by relying on Time::HiRes (indirectly brought to
18 my attention by Max Maischein).
19 - fix some portability issues when Time::HiRes was used.
20
215.371 Mon Feb 21 14:36:08 CET 2011
22 - backport to windows process emulation code again.
23
245.37 Sat Feb 19 07:49:44 CET 2011
25 - add a big "Coro thread life cycle" section to "man Coro".
26 - try a tentative workaround against the breakage that 5.13 has
27 introduced without depreciation period. sigh.
28 - no longer use Time::HiRes if gettimeofday is available, which
29 saves quite a lot of memory.
30
315.36 Sun Feb 13 05:33:41 CET 2011
32 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
33 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
34 method call.
35 - undocument Coro::Timer::sleep and obsolete whole module.
36 - optimise Coro::Timer::timeout memory and cpu usage.
37 - slightly updated Coro::Intro for recent changes.
38 - do not initialise PL_dirty anymore.
39
405.25 Thu Nov 11 01:08:39 CET 2010
41 - try a different approach on netbsd - netbsd 5 finally has marginally
42 working pthreads, but still broken ucontext/sigaltstack.
43 - openbsd 4.8 finally got their act together, Coro works out of the box
44 with asm, setjmp and pthreads (no change, just informational).
45
465.24 Sat Oct 23 11:27:12 CEST 2010
47 - port to the EV 4.0 API.
48 - work around bugs in mingw32, making strawberry perl work
49 out of the box.
50 - correctly modify Coro::AIO function prototypes
51 so that they reflect the "no optional parameters" rule.
52 - "ported" libcoro to C++.
53
545.23 Mon May 17 18:50:42 CEST 2010
55 - be more resistant to ordering changes when initialising
56 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
57 Waldorf).
58 - document that perl 5.12 deliberately removed support for cloning.
59
605.22 Wed Apr 14 03:55:35 CEST 2010
61 - correctly return udnef on errors in Coro::Handle::read/write
62 (testcase by Marc Mims).
63 - convert Coro::Util into a "perl compatibility wrapper" - the functions
64 are less useful now, but are drop-in replacements for existing
65 functions, listing better alternatives in the documentation. This also
66 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
67 with Coro::Util::inet_aton.
68 - do not override $Coro::idle unconditionally in Coro.pm, as other
69 modules could have provided their own idle coro already
70 (for exmaple, Coro::AnyEvent).
71 - fix Coro::Util::gethost* functions.
72 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
73
745.21 Wed Dec 16 07:19:51 CET 2009
75 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
76 together.
77 - add some examples on how to combine other event loops with Coro in
78 Coro::AnyEvent, and how to run it (and not to block). Seems to be
79 the most common source of confusion.
80 - try to catch people naively blocking in an event callback.
81 - work around the perl filehandle bug issue in conjunction with
82 older common::sense (as indirectly pointed out by ZSystem).
83 - clarify the "not from signal handlers" section.
84
855.2 Sun Oct 4 14:54:24 CEST 2009
86 - Coro::Storable destroyed the prototypes of the functions it wrapped.
87 - export rouse_cb and rouse_wait by default now.
88 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
89 - new method $state->swap_sv.
90 - added section on "windows process emulation" to the manpage,
91 after a not-so-fruitful (nor-friendly) "discussion" with chip
92 salzenberg (discussion implies arguments, but his only arguments
93 were ad-hominems, one wonders why he started it in the first
94 place). I hope this explains it well enough for him to understand,
95 and maybe well enough for others to understand.
96 - use common::sense everywhere now.
97 - idle callbacks are no longer supported, use idle coros instead.
98 - print a thread listing when a deadlock is detected.
99
1005.17 Sat Aug 22 23:09:31 CEST 2009
101 - work around a bug in the perl debugger causing crashes
102 when running under the debugger by marking _pool_handler as nodebug.
103 - speed up Coro::async considerably.
104 - try some hacks to get netbsd to work "more often" - their broken
105 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
106 - convert Coro to AE 5.0 API.
107
1085.162 Tue Jul 28 04:04:03 CEST 2009
109 - perl 5.8.2 is now minimum requirement.
110 - skip t/19_handle.t on broken windows perls.
111
1125.161 Wed Jul 22 04:47:38 CEST 2009
113 - Coro::AnyEvent::poll could have a different prototype when EV was
114 used as backend (analyzed by Tatsuhiko Miyagawa).
115 - Coro::AnyEvent errornously initialised the event loop when loaded,
116 not on demand.
117 - try to workaround rare */t/01_unblock.t failures.
118
1195.16 Tue Jul 21 01:44:37 CEST 2009
120 - Coro::AnyEvent failed to hook into the event loop
121 when no threads had been readied between detecting
122 the event loop and actually running it.
123 - considerably speed up Coro::Select by taking avdantage
124 of AnyEvent > 4.8 and some other optimisations.
125 - implement paragraph readline mode in Coro::Handle
126 (based on patches by Zsbán Ambrus).
127 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
128 and analyzed by Yasuhiro MATSUMOTO).
129 - clarified libcoro license and copyright.
130 - someone stole my EXTRA_META!!!
131 - implement Coro::Select::patch_pp_sselect and it's brother,
132 for hardcode select overriding.
133
1345.151 Mon Jul 6 05:41:57 CEST 2009
135 - backport to windows process emulation code again (patch by
136 Yasuhiro MATSUMOTO).
137 - slightly update Coro::MakeMaker.
138
1395.15 Tue Jun 30 10:28:06 CEST 2009
140 - deprecate Coro::Socket, document how to get ipv6 support via
141 AnyEvent::Socket instead.
142 - implement signal->wait ($cb) interface, similar to semaphores.
143 - work around SvOK not supporting getmagic, so we have to getmagic
144 to test for undef :/ (reported by Matthias Waldorf).
145 - load Coro::AnyEvent in all modules using AnyEvent.
146 - work around perl corrupting our internal data structures,
147 reported by Tokuhiro Matsuno.
148 - enable per-coroutine real and cpu time gathering
149 (Coro::State::enable_times).
150
1515.14 Wed Jun 24 01:37:48 CEST 2009
152 - provide explicit functions to "cede" to the event loop in Coro::AnyEvent,
153 as this seems to have been a difficult concept (poll, sleep, idle,
154 idle_upto).
155 - add Coro::AnyEvent::readable/writable functions.
156 - clarify Coro::EV/Event/AnyEvent manpages.
157 - free per-thread global scalars in the thread calling ->cancel, to
158 avoid crashes when $_, $@ etc., are magical but some of those
159 had already been freed.
160 - "unexperimentalise" the callback interface for Coro::Semaphore.
161 - speed up ready queue management/context switching by using a linked
162 list instead of an array (~5-10%).
163 - implement "watch" command in Coro::Debug shells.
164 - for fun, implement time-slicing as an example in the manpage.
165 - if AnyEvent detects EV or Event, but we don't have Coro::EV or
166 Coro::Event, use the normal AnyEvent handling instead of dieing
167 (the same is true for Coro::Handle).
168 - properly document Coro::EV::timed_io_once.
169 - avoid unneccessary ->cancel calls in Coro::Handle.
170 - maybe make it work on mingw32 with win32 backend
171 (based on patch by Yasuhiro Matsumoto).
172
1735.132 Fri May 29 09:00:39 CEST 2009
174 - do not keep a reference to the argument itself in
175 Coro::Semaphore::guard, as it could change later.
176 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
177 should support a prepare callback.
178
1795.131 Mon Mar 16 23:20:37 CET 2009
180 - implement and document Coro->suspend, Coro->resume.
181 - fix Coro::Select implementation to not (often) close
182 the passed file descriptors (testcase provided by pippijn).
183
1845.13 Mon Dec 15 21:51:42 CET 2008
185 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
186 - don't set diehook to C<undef> but instead to NULL, to avoid
187 spurious warnings.
188 - fix a lot of bugs in Coro::SemaphoreSet.
189 - Coro::SemaphoreSet will less often create a semaphore needlessly.
190 - add Coro::SemaphoreSet::count and wait methods.
191 - take advantage of the new Guard module.
192 - deprecate Coro::guard.
193 - try to fix the dreaded 01_unblock tests once more. I hate it when
194 testsuites need more fixing than the code they are supposed to test.
195 - croak in more cases when a required callback isn't resolvable.
196 - fix some minor issues in Coro::State->call/eval.
197 - use current coroutine context instead of a temporary one
198 when temporarily switching to another coroutine.
199 - do not call C-level on_destroy handlers during global destruction,
200 to avoid needless segfaults.
201
2025.12 Sun Dec 7 13:30:38 CET 2008
203 - add default config for MirOS, which seems to be a bug-to-bug
204 compatible fork of openbsd ("world domination by releasing
205 openbsd cvs before the openbsd folks do it" or so :).
206 - free_padlist did destroy the names pad, not good, but didn't
207 seem to bother perl - this could fix issues such as eval ""
208 inside a function called from multiple coroutines.
209 - use a different method to detect destruction time.
210 - be more careful when freeing padlists just before global
211 destruction.
212 - fixed and expanded the call/cc example.
213 - renamed _terminate to _coro_run.
214 - new method Coro::Channel->shutdown.
215 - try pthreads on openbsd <4.4 (broken sigaltstack, will
216 pthreads fare better?).
217 - be less picky about destroying "a" running coroutine.
218
2195.11 Tue Nov 25 21:49:05 CET 2008
220 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
221 working code with failed assertions, introducing more bugs than
222 it fixes, requiring elaborate workarounds :(
223
2245.1 Mon Nov 24 08:54:59 CET 2008
225 - wrote a small introductory tutorial - Coro::Intro.
226 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
227 - Coro::Select did errornously dup the file descriptors
228 and didn't work with all AnyEvent backends.
229 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
230 LWP data transfers.
231 - disassociate c contexts from coro objects - this is agruably more
232 correct, but mostly allows sharing of cctxs between coro and state
233 objects, for added memory savings and speed increases.
234 - bumped $Coro::POOL_RSS up to 32kb by default.
235 - no longer set the optype to OP_CUSTOM, as B::* understandably
236 doesn't like this very much (and we *are* a type of entersub).
237 - implement state cloning, just to prove that call/cc can be done.
238 - automatically load Coro::AnyEvent in Coro::Handle.
239 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
240 do not have this method (and don't need it either).
241 - speed up generic anyevent methods in Coro::Handle by using rouse
242 callbacks.
243 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
244 others. It also makes the debugger happier, as you can trace
245 through the idle threads now.
246 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
247 - eg/event was pretty broken.
248 - better 5.8.6 compatibility.
249
2505.0 Thu Nov 20 10:35:05 CET 2008
10 - NEW ARCHITECTURE: use the latest 4.x version if you experience 251 - NEW ARCHITECTURE: use the latest 4.x version if you experience
11 stability issues. 252 stability issues.
12 - bump API version to 7 - all dependents must be recompiled. 253 - bump API version to 7 - all dependents must be recompiled.
13 - removed timed_* functions - they were not being used anyways 254 - removed timed_* functions - they were not being used anyways
14 and should be replaced by a more generic mechanism - 255 and should be replaced by a more generic mechanism -
15 and were annoying to support anyways :) 256 and were annoying to support anyways :)
16 - removed SemaphoreSet's waiter method - use sem instead. 257 - removed SemaphoreSet's waiter method - use sem method instead.
17 - Coro::Semaphore->adjust didn't correctly wake up enough waiters. 258 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
18 - async_pool did free a scalar value twice 259 - async_pool did free a scalar value twice
19 ("Attempt to unreference..."). 260 ("Attempt to unreference...").
20 - fix a disastrous bug in the readline optimisation
21 introduced in 4.801.
22 - fix a longstanding bug where calling terminate on a coro that 261 - fix a longstanding bug where calling terminate on a coro that
23 was waiting for a semaphore that was just becoming available 262 was waiting for a semaphore that was just becoming available
24 would cause a deadlock (semaphore would get into a state where 263 would cause a deadlock (semaphore would get into a state where
25 it was available but waiters were still blocked). 264 it was available but waiters were still blocked).
26 - calling throw on a coroutine that is waiting for a semaphore will 265 - calling throw on a coroutine that is waiting for a semaphore will
27 no longer make it acquire the semaphore (and thus leak a count). 266 no longer make it acquire the semaphore (and thus leak a count).
28 - perl's process emulation is now not even theoretically supported 267 - perl's process emulation is now not even theoretically supported
29 anymore. 268 anymore.
30 - new functions Coro::rouse_cb and Coro::rouse_wait. 269 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
270 conversion of callback-style to blocking-style.
271 - new methods $coro->schedule_to and ->cede_to, to specifically
272 schedule or cede to a specific coroutine.
31 - new function Coro::Semaphore::wait. 273 - new function Coro::Semaphore::wait.
32 - use named constants in Coro::Channel (Richard Hundt). 274 - use named constants in Coro::Channel (Richard Hundt).
33 - directly patch the entersub opcode calling SLF functions (cede, 275 - directly patch the entersub opcode calling SLF functions (cede,
34 transfer and so on). this does speed up context switching, but 276 transfer and so on). this does speed up context switching, but
35 more importanly, it frees us from the hardcoded behaviour of 277 more importanly, it frees us from the hardcoded behaviour of
… …
52 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate 294 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
53 (in comparison) 20-40% speedup. 295 (in comparison) 20-40% speedup.
54 - used new SLF interface to reimplement Coro::Signal gaining 296 - used new SLF interface to reimplement Coro::Signal gaining
55 some unknown (because I was too lazy), but certain, speedup, and also 297 some unknown (because I was too lazy), but certain, speedup, and also
56 making signals reliable for the first time. 298 making signals reliable for the first time.
299 - used new SLF interface and other optimisations to speed up async_pool
300 by a factor of two. It also doesn't rely on perl's exception mechanism
301 to exit anymore. The overhead for terminating an async_pool, coro over
302 a normal async is now very small.
303 - sped up coroutine creation/destruction by 40%.
57 - forgot to include Coro/libcoro/README in the dist for all these years. 304 - forgot to include Coro/libcoro/README in the dist for all these years.
58 - work around a freebsd pthreads bug (manual testcancel is required as 305 - work around a freebsd pthreads bug (manual testcancel is required as
59 pthread_cond_wait isn't a cancellation point on freebsd). 306 pthread_cond_wait isn't a cancellation point on freebsd).
60 - use new rouse functions to speed up and simplify Coro::BDB. 307 - use new rouse functions to speed up and simplify Coro::BDB.
61 - make "prefer perl native functions" work with threaded perls. 308 - make "prefer perl native functions" work with threaded perls.
62 - condense Coro::Debug ps output, hint at v and w flags. 309 - condense Coro::Debug ps output, hint at v and w flags.
63 - (libcoro) lots of minor cleanups and portability improvements. 310 - (libcoro) lots of minor cleanups and portability improvements.
311
3124.914 Wed Nov 19 12:54:18 CET 2008
313 - fix a disastrous bug in the readline optimisation
314 introduced in 4.801.
64 315
654.913 Sat Nov 15 07:58:28 CET 2008 3164.913 Sat Nov 15 07:58:28 CET 2008
66 - async_pool did free a scalar value twice 317 - async_pool did free a scalar value twice
67 ("Attempt to unreference..."). 318 ("Attempt to unreference...").
68 319

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