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Comparing Coro/Changes (file contents):
Revision 1.310 by root, Thu Dec 27 21:52:21 2007 UTC vs.
Revision 1.495 by root, Sat Jun 20 07:16:31 2009 UTC

1Revision history for Perl extension Coro. 1Revision history for Perl extension Coro.
2 2
3TODO: should explore PerlIO::via::CoroCede and PerlIO::via::CoroAIO. 3TODO: should explore PerlIO::coroaio (perl leaks like hell).
4TODO: maybe implement a default message channel, very much like Erlang 4TODO: maybe implement a default message channel, very much like Erlang's
5 (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)?
7 10
84.35 11 - clarify Coro::EV/Event/AnyEvent manpages: you have to actually run
12 the event loop somewhere to be able to poll for events
13 in the presence of ready threads.
14 - speed up ready queue management/context switching by using a linked
15 list instead of an array (~5-10%).
16 - implement "watch" command in Coro::Debug shells.
17 - for fun, implement time-slicing as an example in the manpage.
18
195.132 Fri May 29 09:00:39 CEST 2009
20 - do not keep a reference to the argument itself in
21 Coro::Semaphore::guard, as it could change later.
22 - support SO_RCVBUF/SO_SNDBUF nonstandard Coro::Socket options,
23 should support a prepare callback.
24
255.131 Mon Mar 16 23:20:37 CET 2009
26 - implement and document Coro->suspend, Coro->resume.
27 - fix Coro::Select implementation to not (often) close
28 the passed file descriptors (testcase provided by pippijn).
29
305.13 Mon Dec 15 21:51:42 CET 2008
31 - EXPERIMENTAL: implement dynamic winds (on_enter/on_leave).
32 - don't set diehook to C<undef> but instead to NULL, to avoid
33 spurious warnings.
34 - fix a lot of bugs in Coro::SemaphoreSet.
35 - Coro::SemaphoreSet will less often create a semaphore needlessly.
36 - add Coro::SemaphoreSet::count and wait methods.
37 - take advantage of the new Guard module.
38 - deprecate Coro::guard.
39 - try to fix the dreaded 01_unblock tests once more. I hate it when
40 testsuites need more fixing than the code they are supposed to test.
41 - croak in more cases when a required callback isn't resolvable.
42 - fix some minor issues in Coro::State->call/eval.
43 - use current coroutine context instead of a temporary one
44 when temporarily switching to another coroutine.
45 - do not call C-level on_destroy handlers during global destruction,
46 to avoid needless segfaults.
47
485.12 Sun Dec 7 13:30:38 CET 2008
49 - add default config for MirOS, which seems to be a bug-to-bug
50 compatible fork of openbsd ("world domination by releasing
51 openbsd cvs before the openbsd folks do it" or so :).
52 - free_padlist did destroy the names pad, not good, but didn't
53 seem to bother perl - this could fix issues such as eval ""
54 inside a function called from multiple coroutines.
55 - use a different method to detect destruction time.
56 - be more careful when freeing padlists just before global
57 destruction.
58 - fixed and expanded the call/cc example.
59 - renamed _terminate to _coro_run.
60 - new method Coro::Channel->shutdown.
61 - try pthreads on openbsd <4.4 (broken sigaltstack, will
62 pthreads fare better?).
63 - be less picky about destroying "a" running coroutine.
64
655.11 Tue Nov 25 21:49:05 CET 2008
66 - DEBUGGING in 5.10.0 is a mess: it constantly flags perfectly
67 working code with failed assertions, introducing more bugs than
68 it fixes, requiring elaborate workarounds :(
69
705.1 Mon Nov 24 08:54:59 CET 2008
71 - wrote a small introductory tutorial - Coro::Intro.
72 - convert Coro::Timer, Coro::Select and Coro::Util to rouse API.
73 - Coro::Select did errornously dup the file descriptors
74 and didn't work with all AnyEvent backends.
75 - Coro::Select wasn't imported correctly form Coro::LWP, causing blocking
76 LWP data transfers.
77 - disassociate c contexts from coro objects - this is agruably more
78 correct, but mostly allows sharing of cctxs between coro and state
79 objects, for added memory savings and speed increases.
80 - bumped $Coro::POOL_RSS up to 32kb by default.
81 - no longer set the optype to OP_CUSTOM, as B::* understandably
82 doesn't like this very much (and we *are* a type of entersub).
83 - implement state cloning, just to prove that call/cc can be done.
84 - automatically load Coro::AnyEvent in Coro::Handle.
85 - wrap ->cancel calls in eval inside Coro::Handle as EV watchers
86 do not have this method (and don't need it either).
87 - speed up generic anyevent methods in Coro::Handle by using rouse
88 callbacks.
89 - allow coroutines in $Coro::IDLE, speeding up Coro::AnyEvent and
90 others. It also makes the debugger happier, as you can trace
91 through the idle threads now.
92 - add comppad_name* and hints ($^H, %^H) to per-thread variables.
93 - eg/event was pretty broken.
94 - better 5.8.6 compatibility.
95
965.0 Thu Nov 20 10:35:05 CET 2008
97 - NEW ARCHITECTURE: use the latest 4.x version if you experience
98 stability issues.
99 - bump API version to 7 - all dependents must be recompiled.
100 - removed timed_* functions - they were not being used anyways
101 and should be replaced by a more generic mechanism -
102 and were annoying to support anyways :)
103 - removed SemaphoreSet's waiter method - use sem method instead.
104 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
105 - async_pool did free a scalar value twice
106 ("Attempt to unreference...").
107 - fix a longstanding bug where calling terminate on a coro that
108 was waiting for a semaphore that was just becoming available
109 would cause a deadlock (semaphore would get into a state where
110 it was available but waiters were still blocked).
111 - calling throw on a coroutine that is waiting for a semaphore will
112 no longer make it acquire the semaphore (and thus leak a count).
113 - perl's process emulation is now not even theoretically supported
114 anymore.
115 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
116 conversion of callback-style to blocking-style.
117 - new methods $coro->schedule_to and ->cede_to, to specifically
118 schedule or cede to a specific coroutine.
119 - new function Coro::Semaphore::wait.
120 - use named constants in Coro::Channel (Richard Hundt).
121 - directly patch the entersub opcode calling SLF functions (cede,
122 transfer and so on). this does speed up context switching, but
123 more importanly, it frees us from the hardcoded behaviour of
124 entersub, so we might actually be able to return something from
125 those functions and atcually create new ones.
126 - take advantage of __builtin_frame_address on gcc.
127 - expose THX in coroapi (not sure whether this was a wise decision,
128 as "threaded" perls are running at half speed anyways).
129 - implement execute_slf (schedule-like-function) interface that makes
130 it possible to implement schedule-like-functions in XS.
131 - use new SLF interface to massively speed up Coro::EV by roughly a
132 factor of two.
133 - used new SLF interface to massively speed up Coro::Semaphore by a
134 factor of three.
135 - used new SLF interface to speed up Coro::AIO by roughly a factor of
136 four and reduce its memory usage considerably.
137 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
138 for a nice speedup and vastly more correct behaviour. Also implement
139 a new method "sem" to get at the underlying semaphore object.
140 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
141 (in comparison) 20-40% speedup.
142 - used new SLF interface to reimplement Coro::Signal gaining
143 some unknown (because I was too lazy), but certain, speedup, and also
144 making signals reliable for the first time.
145 - used new SLF interface and other optimisations to speed up async_pool
146 by a factor of two. It also doesn't rely on perl's exception mechanism
147 to exit anymore. The overhead for terminating an async_pool, coro over
148 a normal async is now very small.
149 - sped up coroutine creation/destruction by 40%.
150 - forgot to include Coro/libcoro/README in the dist for all these years.
151 - work around a freebsd pthreads bug (manual testcancel is required as
152 pthread_cond_wait isn't a cancellation point on freebsd).
153 - use new rouse functions to speed up and simplify Coro::BDB.
154 - make "prefer perl native functions" work with threaded perls.
155 - condense Coro::Debug ps output, hint at v and w flags.
156 - (libcoro) lots of minor cleanups and portability improvements.
157
1584.914 Wed Nov 19 12:54:18 CET 2008
159 - fix a disastrous bug in the readline optimisation
160 introduced in 4.801.
161
1624.913 Sat Nov 15 07:58:28 CET 2008
163 - async_pool did free a scalar value twice
164 ("Attempt to unreference...").
165
1664.912 Thu Nov 13 18:31:23 CET 2008
167 - minor cleanups.
168 - use much larger stacks on linux and perl < 5.8.8.
169 - Coro::Debug::new_unix_server did not unlink the socket
170 when destroyed.
171
1724.911 Tue Nov 11 04:26:17 CET 2008
173 - "port" to threaded perls.
174
1754.91 Mon Nov 10 05:36:38 CET 2008
176 - the ->throw exception object no longer leaks.
177 - creating a new cctx leaked a scopestack entry (memleak).
178 - new coroutines didn't get created with a zero flags field
179 (unknown impact).
180 - calling ->throw on a not-yet-started coroutine should now work
181 instead of being ignored.
182 - ->throw is now supported on Coro::State objects.
183 - clean up cctx creation code a bit.
184 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
185
1864.9 Sat Nov 8 17:45:27 CET 2008
187 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
188 - (libcoro) no longer leak threads in the experimental pthread backend,
189 also speed it up considerably.
190 - (libcoro) do not rely on makecontext passing void *'s unscathed.
191 - fix compiletime dependencies on libcoro in the Makefile.
192 - cctx_count wasn't always updated properly.
193 - Coro::State::cctx_stacksize wasn't applied correctly.
194 - new function Coro::State::cctx_max_idle.
195 - the default max number of idle C contexts is now 4.
196 - (libcoro) try harder to get _setjmp/_longjmp.
197 - (libcoro) cleanup and extend the libcoro API to officially
198 allow the creation of empty source contexts.
199 - very experimental workaround for the totally broken netbsd platform.
200 - tried to hack around openbsd bugs.
201
2024.804 Wed Nov 5 16:36:00 CET 2008
203 - Coro::Debug::new_unix_server would not create a non-blocking listening
204 socket, sometimes causing freezes.
205 - (libcoro) fix misaligned stack points for setjmp and assembly
206 methods, which can cause crashes on x86/x86_64 with a sufficiently
207 aggressive compiler.
208 - new function: Coro::Debug::new_tcp_server.
209 - move ->throw into the Coro class because it only works on coro objects.
210
2114.803 Mon Nov 3 17:16:12 CET 2008
212 - (libcoro) use a global asm statement to become independent of gcc
213 otpimisations for CORO_ASM (thanks to pippijn for the idea).
214 - try to workaround yet another broken bsd, this time dragonfly.
215
2164.802 Thu Oct 30 10:56:12 CET 2008
217 - support -fno-omit-frame-pointer on x86 with the assembly method.
218 - tune 01_unblock.t tests a bit.
219
2204.801 Wed Oct 22 18:33:37 CEST 2008
221 - improve readline speed for very long "lines".
222 - backport to 5.8.8.
223
2244.8 Thu Oct 2 13:34:40 CEST 2008
225 - new function Coro::AIO::aio_wait.
226 - Coro.:AIO and Coro::BDB now "use Coro::AnyEvent".
227 - greatly speed up and reduce memory usage of Coro::AIO requests.
228 - implement some other µ-optimisations.
229
2304.749 Mon Sep 29 14:40:12 CEST 2008
231 - port to slow and broken pseudo-threaded perls. (courtesy pippijn).
232
2334.748 Sat Sep 27 14:03:19 CEST 2008
234 - implement, but do not document, PerlIO::cede(granularity).
235 - Coro::Storable forgot to wrap Storable::pstore.
236 - work around the multitude of leaks and memory corruption
237 bugs in PerlIO::via by using our own C-level perliol. As a side
238 effect, Coro::Storable is now much, much, much faster.
239
2404.747 Tue Sep 23 01:59:41 CEST 2008
241 - fix a per-cv memleak (one empty array was leaked per
242 code reference).
243 - avoid a crash in coro->call|rss when the coroutine was already
244 destroyed (most noticably when using Coro::Debug::ps :)
245 - also protect *Storable::FILE.
246 - push up default storable granularity to 20ms.
247
2484.746 Sun Sep 21 03:22:20 CEST 2008
249 - be more insistent on locking Storable against reentrancy
250 in Coro::Storable.
251 - move swap_def?v and throw to Coro::State, as documented.
252
2534.745 Thu Jul 24 00:14:38 CEST 2008
254 - remove debugging code related to MgPV_nolen_const, also try to
255 make it compile with perl 5.8.6 (yes, apple apparently loves
256 outdated software). Reported by John S.
257
2584.744 Tue Jul 8 22:06:35 CEST 2008
259 - correctly provide default DIE/WARN handlers as documented.
260 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
261 implementations inside perl work fine for us.
262
2634.743 Mon Jun 16 00:21:57 CEST 2008
264 - when using Coro::EV without running EV::loop it could
265 result in busy-waiting for events, this has been fixed.
266 - reduce codesize and improve performance by using EV_DEFAULT_UC.
267
2684.742 Sat May 31 14:10:21 CEST 2008
269 - implement a workaround for (some) perl <5.8.8 versions.
270 - require EV 3.3+.
271
2724.741 Fri May 30 23:33:09 CEST 2008
273 - tell netbsd how utterly broken their imitation of an OS is
274 and refuse to build by default if pthreads are in use.
275 - switch to "s" method on all bsd's by default, as their ucontext
276 stuff seems just too broken.
277 - fix a bug in Coro::Select.
278
2794.74 Thu May 29 20:05:31 CEST 2008
280 - do not test Coro::LWP for lack of dependencies.
281 - do not test Coro::Select for lack of working perls.
282
2834.73 Thu May 29 2008
284 - fix a bug in Coro::EV which would cause it to block despite
285 there being runnable coroutines.
286 - sprinkle "no warnings" freely over everything, also suppress
287 warnings for some other modules.
288 - fix typo in WSAEWOULDBLOCK.
289
2904.72 Sun May 25 05:14:36 CEST 2008
291 - tweak META.yaml a bit, unfortunately, there is no documented way
292 to have optional dependencies with CPAN. doh :(
293 - avoid running some tests on windows because they would fail due to
294 perl bug (broken fork, broken pipes...).
295 - work around perl on windows bugs where perl returns undocumented
296 error codes for sysread, syswrite etc. by taking advantage
297 of AnyEvent's workaround for that problem.
298 - use AnyEvent::Util::fh_nonblocking in Coro::Handle to work around
299 a common perl implementation bug on windows.
300 - use unix domain sockets in testsuite to work around
301 common perl implementation bugs on widows (they are emulated by
302 tcp sockets on windows. ugh.)
303
3044.71 Sat May 24 20:01:27 CEST 2008
305 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
306 - take advantage of async name resolution of AnyEvent::Util.
307 - work around brutal inet_aton override in Coro::LWP.
308 - take advantage of the readyhook in Coro::EV, for smoother
309 scheduling.
310
3114.7 Sun May 11 00:32:19 CEST 2008
312 - completely reworked the Coro manpage.
313 - added Coro::AnyEvent, generic event loop integration.
314 - implement cancel, ready and kill commands in Coro::Debug.
315 - document find_coro in Coro::Debug.
316 - incompatible change: rename has_stack to has_cctx.
317 - Coro::AIO and Coro::BDB no longer force event model detection,
318 use AnyEvent::AIO and AnyEvent::BDB.
319
3204.6 Sat Apr 26 10:05:14 CEST 2008
321 - INCOMPATIBLE CHANGE: sub/code attributes are no longer supported
322 by the Coro module. It was a mistake to have it in the first place.
323 - (experimental) support for activestate perl 5.10 (method "w").
324 - (experimental) support for strawberry perl (method "a").
325 - coro_sigelem_set did not return a value although it had to,
326 actual impact unknown.
327
3284.51 Mon Apr 14 13:28:27 CEST 2008
329 - make it compile again on 5.8.
330
3314.50 Thu Apr 10 09:43:17 CEST 2008
332 - I did it twice! (see 4.49).
333
3344.49 Sun Apr 6 21:23:31 CEST 2008
335 - grr, instead of compiling the recent changes on 5.10 only they
336 were compiled on 5.8 only.
337
3384.48 Sun Apr 6 20:36:46 CEST 2008
339 - allow coroutine switches during eval's under 5.10.x, as it seems
340 the parser is a per-interpreter option now, so this is safe
341 (this might fix the odd crashing bug).
342 - drop support for 5.9.x versions: they are dead, jim.
343
3444.47 Sun Apr 6 00:37:52 CEST 2008
345 - force cctx allocation on API calls: we know we need to force one
346 and gcc actually manages to confuse our heuristic nowadays,
347 leading to crashes and worse.
348 - document force_cctx.
349
3504.46 Fri Apr 4 22:05:43 CEST 2008
351 - upgrade libcoro, resulting in pthread-backend (which was only created
352 to fulfill the rules of the programming languages shootout).
353
3544.45 Thu Mar 13 11:55:36 CET 2008
355 - fix a file leaking bug in eg/mhyttpd that would allow
356 downloading of any file (reported by oesi).
357 - fix deadlock bug in Coro::Channel (reported by Richard Hundt)
358 (also add testcase).
359 - support Broadcast option in Coro::Socket (patch by Richard Hundt,
360 apparently having loads of fun with that).
361 - implement $state->swap_defsv, ->swap_defav and document ->throw.
362
3634.4 Wed Feb 13 16:44:29 CET 2008
364 - only assume .cfi pseudo isns exist on GNU/Linux.
365 - add get_timed method to Coro::Channels.
366 - fixed Coro::Debug manpage.
367 - perl 5.11 compatbility improvement based on patch by
368 Andreas König.
369
3704.37 Sun Jan 20 11:25:23 CET 2008
371 - soften the check for an active parser for perl 5.10 (avoiding
372 "Coro::State::transfer called while parsing" in many cases).
373
3744.36 Sun Jan 13 10:53:56 CET 2008
375 - reset diehook when terminating from an async_pool as to not
376 trigger any __DIE__ handlers.
377
3784.35 Sun Jan 13 04:14:13 CET 2008
9 - "bt" debug command now displays any exceptions 379 - "bt" debug command now displays any exceptions
10 from longmess. 380 from longmess and also skips the innermost
381 stackframes, giving more useufl output.
11 - allow backtraces in coroutines blocked in Coro::EV, 382 - allow backtraces in coroutines blocked in Coro::EV,
12 at a <1% speed hit. 383 at a <1% speed hit.
384 - handle localising of $SIG{__WARN__} and __DIE__
385 properly (with a proper amount of dirty hacking).
13 386
144.34 Sat Dec 22 17:49:53 CET 2007 3874.34 Sat Dec 22 17:49:53 CET 2007
15 - upgrade to EV version 2.0 API. 388 - upgrade to EV version 2.0 API.
16 389
174.33 Mon Dec 17 08:36:12 CET 2007 3904.33 Mon Dec 17 08:36:12 CET 2007

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