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Comparing Coro/Changes (file contents):
Revision 1.513 by root, Fri Jul 17 13:54:57 2009 UTC vs.
Revision 1.634 by root, Wed Aug 13 03:09:53 2014 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
5 actor model (which is cool in a lot of important aspects (failures!),
6 but very lacking in others (higher level ipc)).
7TODO: unready_all
8TODO: myhttpd header parsing
9TODO: channel->maxsize(newsize)? 4TODO: channel->maxsize(newsize)?
5TODO: __GCC_HAVE_DWARF2_CFI_ASM
6TODO: swap_sv, maybe add scope_swap_sv, andallow to unswap by repeat?
7TODO: swap_sv not undone in pool
8TODO: croak when async_pool triesd to runc anceled thread?
10 9
10 - restore portability to perl 5.8.x.
11 - allow zero as agrument to Coro::Channel to mean the same thing
12 as no argument. this works with older versions as well,
13 but wasn't legal until now.
14
156.39 Mon Jun 2 00:00:08 CEST 2014
16 - work around more incompatible changes in 5.20.
17
186.38 Sun Jun 1 21:54:23 CEST 2014
19 - check that perl slots actually have enough space to hold
20 interpreter variables.
21 - untested port to perl 5.19 (64 bit tmps indices) (reported
22 by Andreas König).
23 - croak when cancel is called without a thread context.
24
256.37 Tue Mar 4 13:27:33 CET 2014
26 - *sigh*, removed leftover debugging code from debugging a
27 perl bug, of all things.
28
296.36 Tue Mar 4 07:11:59 CET 2014
30 - semaphores would not clear the destroy hook when interrupted
31 by ->throw, causing segfaults or worse.
32 - ->throw on a thread waiting for a semaphore did not acquire
33 the semaphore, but also didn't wake up other waiters,
34 possibly causing a deadlock.
35 - "FATAL: $Coro::IDLE blocked itself" will now use Carp::confess
36 to report a full stacktrace, which should help find out
37 where the actual call is.
38 - "atomically" destroy data in slf_destroy, because it is
39 the right thing to do, just in case.
40 - disable ecb.h libm dependency, to compile on ancient systems
41 or under adverse conditions.
42
436.33 Mon Nov 18 11:26:27 CET 2013
44 - do not crash when freeing padlists with holes (in 5.18).
45 - tentative SVt_BIND 5.19 port/fix.
46
476.32 Tue Nov 5 15:35:35 CET 2013
48 - use a new algorithm to derive padlists for perl 5.18. The old
49 one could lead to 0-pointer accesses inside perl (reported
50 by Darin McBride).
51
526.31 Thu May 9 07:39:48 CEST 2013
53 - Coro::AIO requests would crash if the thread was ready'd
54 while the request was ongoing.
55
566.29 Wed May 8 02:55:18 CEST 2013
57 - when an on_destroy handler destructs the coro currently being
58 destructed a perl scalar could be accessed after being freed,
59 likely causing a crash.
60
616.28 Wed Mar 6 06:58:02 CET 2013
62 - clean remnants of existing __DIE__ and __WARN__ handlers so
63 they lose their magic and will not cause segfaults later
64 (testcase by Andrey Sagulin).
65 - improved Coro::State documentation a bit.
66 - Coro::Debug::command now flushes the output.
67 - add hack detection code for x32 abi, because the braindead slugs
68 who designed that made it look exactly like x86_64 without
69 providing proper compile time symbols to test for it. as a result,
70 this detection cannot work reliably.
71 - valgrind stack registering was broken.
72 - do not rely on Time::HiRes anymore in Coro::Debug.
73
746.23 Fri Dec 7 23:36:37 CET 2012
75 - use experimental fiber implementation on native windows
76 perls.
77 - use sizeof (void *) as multiplication factor for stack sizes,
78 to accomodate the totally braindamaged microsoft 64 bit "os".
79 - changed verifier host from win2k-ap510-32 to win7-sp516-32/64.
80 activeperl 5.16 crashes when PerlIO_define_layer is called due
81 to some bug in the perl dll, strawberry perl at least passes
82 the testsuite.
83 - implement Coro::Handle->peeraddr/host/port, for slightly
84 improved compatibility with LWP.
85 - implement 5.17 compatibility by almost blindly applying a
86 good-looking patch by Father Chrysostomos.
87 - move stack management functions into libcoro 3.
88 - libcoro version 3 "released".
89 - support magic values as timed_io_once args.
90 - recommend AnyEvent 7+ or EV 4+, also require EV
91 version 4 or newer for Coro::EV.
92
936.10 Tue Oct 9 01:14:27 CEST 2012
94 - updated ecb.h, it had a typo that caused it to not compile on many
95 big endian systems (reported by many people).
96 - disable memory fences in ecb.h to improve portability.
97
986.09 Sat Oct 6 23:25:02 CEST 2012
99 - Coro::EV I/O watchers were not interruptible by exceptions
100 (Coro::State::throw) (testcase by sten).
101 - ->throw now puts threads into the ready queue, as this seems to
102 be expected by existing code, and code that doesn't cope with spurious
103 wakeups needs fixing anyway.
104 - use fd -1 in mmap.
105 - cast I32 to int in error message printf.
106 - warn about broken so-called "hardened" kernels.
107
1086.08 Fri Apr 13 12:05:47 CEST 2012
109 - be more aggressive about exiting like perl does - formerly,
110 exiting from the non-main thread would not execute END blocks.
111
1126.07 Fri Nov 11 21:21:48 CET 2011
113 - work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV).
114 - update ecb.h.
115
1166.06 Mon Aug 8 23:59:48 CEST 2011
117 - cygwin unfortunately patches the stack at runtime, so we use the pthreads
118 backend, which is an order of magnitude slower. unfortunately, cygwins
119 pthread implementation isn't very complete either, so allocate the stack
120 twice just to be sure.
121 (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS,
122 in its ithreaded perl - best recompile cygwin and use the 'w'indows
123 backend for much better performance. also disable ithreads for
124 even better performance...).
125
1266.05 Thu Aug 4 21:36:36 CEST 2011
127 - blush, condvar values would not be propagated from send to recv anymore
128 (reported by Chip Salzenberg).
129 - use exponential increase for the readline buffer length in
130 Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes.
131
1326.04 Wed Aug 3 17:15:45 CEST 2011
133 - use even more efficient and more compatible condvars for
134 compatibility to AnyEvent 6.x :)
135 - more inconsequential ecb.h updates.
136
1376.03 Wed Aug 3 11:41:30 CEST 2011
138 - change how Coro patches AnyEvent condvars for compatibility to
139 AnyEvent 6.x.
140 - update ecb.h, to no longer include <pthread.h> in case WinNT.h
141 hasn't been included.
142
1436.02 Wed Jul 13 04:35:19 CEST 2011
144 - "improve portability to Gentoo" - gentoo manages to put perl variables
145 in memory areas that are farther than 2gb apart, which the jit couldn't
146 handle and barfed. now it's just a bit slower on gentoo and similar
147 systems.
148
1496.01 Sun Jul 3 12:31:14 CEST 2011
150 - workarounds are good, but the test for whether pthreads are used
151 was not good. this one should be better.
152 - check differently whether gcc generates cfi instructions itself.
153
1546.0 Wed Jun 29 19:43:35 CEST 2011
155 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
156 destroyed and cleaned up automatically (e.g. async { schedule }).
157 - implement a JIT compiler for part of the thread switch code,
158 which gives a 50% speed improvement on threaded perls, and
159 about 4% on non-threaded perls (so threaded perls now finally
160 reach about half the speed of non-threaded perls).
161 - slightly modernise Coro::Intro, add section about rouse functions.
162 - avoid DEFSV and ERRSV, giving another 10% improvement
163 in thread switching.
164 - Coro::State->is_destroyed is now called is_zombie.
165 - implement a Coro->safe_cancel method that might fail, but
166 cancels in a "safer" way if it succeeds.
167 - add preliminary support for DEBUGGING perls.
168 - get rid of two hash-accesses when initialising a new Coro - this
169 speeds up coro creation by almost a factor of two.
170 - croak when a coro that is being cancelled tries to block
171 (e.g. while executing a guard block), instead of crashing or
172 deadlocking.
173 - use a more robust and also faster method to identify Coro::State
174 objects - speeds up everything a bit.
175 - implement Coro->cancel in XS for a 20% speed improvement, and to
176 be able to implement mutual cancellation.
177 - speed up context switches by a percent or two by more efficiently
178 allocating context stack entries.
179 - implement Coro->join and Coro->on_destroy in XS for a speedup and
180 a reduction in memory use.
181 - cancelling a coro while it itself is cancelling another coro is
182 now supported and working, instead of triggering an assertion.
183 - be a bit more crash-resistant when calling (buggy) on_destroy
184 callbacks (best effort).
185 - move on_destroy into the slf_frame, to allow extension slf
186 functions to have destructors.
187 - get rid if coro refcounting - simply crash in other interpreter
188 threads by nulling the pointers on clone.
189 - simplify warn/die hook handling when loading Coro - the convoluted
190 logic seems to be no longer neccessary.
191 - use libecb instead of our own home-grown gcc hacks.
192 - document alternatives to Coro::LWP. Please use them :)
193 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
194 sigaltstack. Really. wine suffers from it, erlang suffers from it,
195 and it's known since at least 2006.
196
1975.372 Wed Feb 23 06:14:30 CET 2011
198 - apparently mingw doesn't provide a working gettimeofday, try to
199 work around that by relying on Time::HiRes (indirectly brought to
200 my attention by Max Maischein).
201 - fix some portability issues when Time::HiRes was used.
202
2035.371 Mon Feb 21 14:36:08 CET 2011
204 - backport to windows process emulation code again.
205
2065.37 Sat Feb 19 07:49:44 CET 2011
207 - add a big "Coro thread life cycle" section to "man Coro".
208 - try a tentative workaround against the breakage that 5.13 has
209 introduced without depreciation period. sigh.
210 - no longer use Time::HiRes if gettimeofday is available, which
211 saves quite a lot of memory.
212
2135.36 Sun Feb 13 05:33:41 CET 2011
214 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
215 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
216 method call.
217 - undocument Coro::Timer::sleep and obsolete whole module.
218 - optimise Coro::Timer::timeout memory and cpu usage.
219 - slightly updated Coro::Intro for recent changes.
220 - do not initialise PL_dirty anymore.
221
2225.25 Thu Nov 11 01:08:39 CET 2010
223 - try a different approach on netbsd - netbsd 5 finally has marginally
224 working pthreads, but still broken ucontext/sigaltstack.
225 - openbsd 4.8 finally got their act together, Coro works out of the box
226 with asm, setjmp and pthreads (no change, just informational).
227
2285.24 Sat Oct 23 11:27:12 CEST 2010
229 - port to the EV 4.0 API.
230 - work around bugs in mingw32, making strawberry perl work
231 out of the box.
232 - correctly modify Coro::AIO function prototypes
233 so that they reflect the "no optional parameters" rule.
234 - "ported" libcoro to C++.
235
2365.23 Mon May 17 18:50:42 CEST 2010
237 - be more resistant to ordering changes when initialising
238 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
239 Waldorf).
240 - document that perl 5.12 deliberately removed support for cloning.
241
2425.22 Wed Apr 14 03:55:35 CEST 2010
243 - correctly return udnef on errors in Coro::Handle::read/write
244 (testcase by Marc Mims).
245 - convert Coro::Util into a "perl compatibility wrapper" - the functions
246 are less useful now, but are drop-in replacements for existing
247 functions, listing better alternatives in the documentation. This also
248 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
249 with Coro::Util::inet_aton.
250 - do not override $Coro::idle unconditionally in Coro.pm, as other
251 modules could have provided their own idle coro already
252 (for exmaple, Coro::AnyEvent).
253 - fix Coro::Util::gethost* functions.
254 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
255
2565.21 Wed Dec 16 07:19:51 CET 2009
257 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
258 together.
259 - add some examples on how to combine other event loops with Coro in
260 Coro::AnyEvent, and how to run it (and not to block). Seems to be
261 the most common source of confusion.
262 - try to catch people naively blocking in an event callback.
263 - work around the perl filehandle bug issue in conjunction with
264 older common::sense (as indirectly pointed out by ZSystem).
265 - clarify the "not from signal handlers" section.
266
2675.2 Sun Oct 4 14:54:24 CEST 2009
268 - Coro::Storable destroyed the prototypes of the functions it wrapped.
269 - export rouse_cb and rouse_wait by default now.
270 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
271 - new method $state->swap_sv.
272 - added section on "windows process emulation" to the manpage,
273 after a not-so-fruitful (nor-friendly) "discussion" with chip
274 salzenberg (discussion implies arguments, but his only arguments
275 were ad-hominems, one wonders why he started it in the first
276 place). I hope this explains it well enough for him to understand,
277 and maybe well enough for others to understand.
278 - use common::sense everywhere now.
279 - idle callbacks are no longer supported, use idle coros instead.
280 - print a thread listing when a deadlock is detected.
281
2825.17 Sat Aug 22 23:09:31 CEST 2009
283 - work around a bug in the perl debugger causing crashes
284 when running under the debugger by marking _pool_handler as nodebug.
285 - speed up Coro::async considerably.
286 - try some hacks to get netbsd to work "more often" - their broken
287 setjmp/longjmp, ucontext *and* phtreads are really hard on Coro.
288 - convert Coro to AE 5.0 API.
289
2905.162 Tue Jul 28 04:04:03 CEST 2009
291 - perl 5.8.2 is now minimum requirement.
292 - skip t/19_handle.t on broken windows perls.
293
2945.161 Wed Jul 22 04:47:38 CEST 2009
295 - Coro::AnyEvent::poll could have a different prototype when EV was
296 used as backend (analyzed by Tatsuhiko Miyagawa).
297 - Coro::AnyEvent errornously initialised the event loop when loaded,
298 not on demand.
299 - try to workaround rare */t/01_unblock.t failures.
300
3015.16 Tue Jul 21 01:44:37 CEST 2009
11 - Coro::AnyEvent failed to hook into the event loop 302 - Coro::AnyEvent failed to hook into the event loop
12 when no threads had been readied between detecting 303 when no threads had been readied between detecting
13 the event loop and actually running it. 304 the event loop and actually running it.
14 - considerably speed up Coro::Select by taking avdantage 305 - considerably speed up Coro::Select by taking avdantage
15 of AnyEvent > 4.8 and some other optimisations. 306 of AnyEvent > 4.8 and some other optimisations.
307 - implement paragraph readline mode in Coro::Handle
308 (based on patches by Zsbán Ambrus).
16 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported 309 - replace WSAEINPROGRESS by WSAEWOULDBLOCK (reported
17 and analyzed by Yasuhiro MATSUMOTO). 310 and analyzed by Yasuhiro MATSUMOTO).
18 - clarified libcoro license and copyright. 311 - clarified libcoro license and copyright.
19 - someone stole my EXTRA_META!!! 312 - someone stole my EXTRA_META!!!
20 - implement Coro::Select::patch_pp_sselect and it's brother, 313 - implement Coro::Select::patch_pp_sselect and it's brother,
… …
225 - ->throw is now supported on Coro::State objects. 518 - ->throw is now supported on Coro::State objects.
226 - clean up cctx creation code a bit. 519 - clean up cctx creation code a bit.
227 - entersub is actually a UNOP, not a LOGOP (not a bugfix). 520 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
228 521
2294.9 Sat Nov 8 17:45:27 CET 2008 5224.9 Sat Nov 8 17:45:27 CET 2008
230 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there). 523 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
231 - (libcoro) no longer leak threads in the experimental pthread backend, 524 - (libcoro) no longer leak threads in the experimental pthread backend,
232 also speed it up considerably. 525 also speed it up considerably.
233 - (libcoro) do not rely on makecontext passing void *'s unscathed. 526 - (libcoro) do not rely on makecontext passing void *'s unscathed.
234 - fix compiletime dependencies on libcoro in the Makefile. 527 - fix compiletime dependencies on libcoro in the Makefile.
235 - cctx_count wasn't always updated properly. 528 - cctx_count wasn't always updated properly.
… …
297 - remove debugging code related to MgPV_nolen_const, also try to 590 - remove debugging code related to MgPV_nolen_const, also try to
298 make it compile with perl 5.8.6 (yes, apple apparently loves 591 make it compile with perl 5.8.6 (yes, apple apparently loves
299 outdated software). Reported by John S. 592 outdated software). Reported by John S.
300 593
3014.744 Tue Jul 8 22:06:35 CEST 2008 5944.744 Tue Jul 8 22:06:35 CEST 2008
302 - correctly provide default DIE/WARN handlers as documented. 595 - correctly provide default DIE/WARN handlers as documented.
303 - also overwrite PL_vtbl_sigelem.svt_clear, even though current 596 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
304 implementations inside perl work fine for us. 597 implementations inside perl work fine for us.
305 598
3064.743 Mon Jun 16 00:21:57 CEST 2008 5994.743 Mon Jun 16 00:21:57 CEST 2008
307 - when using Coro::EV without running EV::loop it could 600 - when using Coro::EV without running EV::loop it could
… …
329 - sprinkle "no warnings" freely over everything, also suppress 622 - sprinkle "no warnings" freely over everything, also suppress
330 warnings for some other modules. 623 warnings for some other modules.
331 - fix typo in WSAEWOULDBLOCK. 624 - fix typo in WSAEWOULDBLOCK.
332 625
3334.72 Sun May 25 05:14:36 CEST 2008 6264.72 Sun May 25 05:14:36 CEST 2008
334 - tweak META.yaml a bit, unfortunately, there is no documented way 627 - tweak META.yaml a bit, unfortunately, there is no documented way
335 to have optional dependencies with CPAN. doh :( 628 to have optional dependencies with CPAN. doh :(
336 - avoid running some tests on windows because they would fail due to 629 - avoid running some tests on windows because they would fail due to
337 perl bug (broken fork, broken pipes...). 630 perl bug (broken fork, broken pipes...).
338 - work around perl on windows bugs where perl returns undocumented 631 - work around perl on windows bugs where perl returns undocumented
339 error codes for sysread, syswrite etc. by taking advantage 632 error codes for sysread, syswrite etc. by taking advantage
… …
343 - use unix domain sockets in testsuite to work around 636 - use unix domain sockets in testsuite to work around
344 common perl implementation bugs on widows (they are emulated by 637 common perl implementation bugs on widows (they are emulated by
345 tcp sockets on windows. ugh.) 638 tcp sockets on windows. ugh.)
346 639
3474.71 Sat May 24 20:01:27 CEST 2008 6404.71 Sat May 24 20:01:27 CEST 2008
348 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()"). 641 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
349 - take advantage of async name resolution of AnyEvent::Util. 642 - take advantage of async name resolution of AnyEvent::Util.
350 - work around brutal inet_aton override in Coro::LWP. 643 - work around brutal inet_aton override in Coro::LWP.
351 - take advantage of the readyhook in Coro::EV, for smoother 644 - take advantage of the readyhook in Coro::EV, for smoother
352 scheduling. 645 scheduling.
353 646
3544.7 Sun May 11 00:32:19 CEST 2008 6474.7 Sun May 11 00:32:19 CEST 2008
355 - completely reworked the Coro manpage. 648 - completely reworked the Coro manpage.
356 - added Coro::AnyEvent, generic event loop integration. 649 - added Coro::AnyEvent, generic event loop integration.
357 - implement cancel, ready and kill commands in Coro::Debug. 650 - implement cancel, ready and kill commands in Coro::Debug.
358 - document find_coro in Coro::Debug. 651 - document find_coro in Coro::Debug.
359 - incompatible change: rename has_stack to has_cctx. 652 - incompatible change: rename has_stack to has_cctx.
360 - Coro::AIO and Coro::BDB no longer force event model detection, 653 - Coro::AIO and Coro::BDB no longer force event model detection,
361 use AnyEvent::AIO and AnyEvent::BDB. 654 use AnyEvent::AIO and AnyEvent::BDB.
… …
485 778
4864.11 Thu Oct 11 02:40:24 CEST 2007 7794.11 Thu Oct 11 02:40:24 CEST 2007
487 - port to threaded perls. 780 - port to threaded perls.
488 781
4894.1 Thu Oct 11 02:38:16 CEST 2007 7824.1 Thu Oct 11 02:38:16 CEST 2007
490 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now 783 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
491 be local to each coro (see Coro::State). 784 be local to each coro (see Coro::State).
492 - incompatible change: for very deep reasons, cede and cede_notself 785 - incompatible change: for very deep reasons, cede and cede_notself
493 cannot return anything, so nothing will be returned. 786 cannot return anything, so nothing will be returned.
494 - possibly bring back 5.10 compatibility (untested). 787 - possibly bring back 5.10 compatibility (untested).
495 - work around stupid (and wrong) warning on 5.10 :(. 788 - work around stupid (and wrong) warning on 5.10 :(.
… …
567 but stateful semantics. 860 but stateful semantics.
568 - fixed a lot of typos in Coro.pm (patch submitted by David 861 - fixed a lot of typos in Coro.pm (patch submitted by David
569 Steinbrunner, which applied flawlessly). 862 Steinbrunner, which applied flawlessly).
570 863
5713.6 Sat Apr 14 17:13:31 CEST 2007 8643.6 Sat Apr 14 17:13:31 CEST 2007
572 - added some bugfixes to get eg/myhttpd working again. 865 - added some bugfixes to get eg/myhttpd working again.
573 - added Coro::Storable for often-cede'ing freeze/thaw. 866 - added Coro::Storable for often-cede'ing freeze/thaw.
574 - try to do a clean exit when a coroutine calls exit 867 - try to do a clean exit when a coroutine calls exit
575 (EXPERIMENTAL). 868 (EXPERIMENTAL).
576 - got rid of indirect call through _coro_init. 869 - got rid of indirect call through _coro_init.
577 - updated the partly antique examples in eg/ to 870 - updated the partly antique examples in eg/ to

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