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Comparing Coro/Changes (file contents):
Revision 1.547 by root, Sun Feb 13 04:39:14 2011 UTC vs.
Revision 1.678 by root, Sun Dec 16 09:33:44 2018 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: unready_all
5TODO: myhttpd header parsing
6TODO: channel->maxsize(newsize)? 4TODO: channel->maxsize(newsize)?
7TODO: http://www.microsoft.com/msj/archive/s2ce.aspx 5TODO: __GCC_HAVE_DWARF2_CFI_ASM
6TODO: swap_sv, maybe add scope_swap_sv?
7TODO: croak when async_pool tries to run canceled thread?
8TODO: how to debug safe_cancel failure (vebrose mode? show how to make backtrace?)
9TODO: scalar context for Coro::AIO wrappers?
10
116.53 Sun Dec 16 10:33:15 CET 2018
12 - the autogenerated prototypes of Coro::AIO now add ";" at the end
13 to avoid generating named unary operators and messing up parsing
14 (mostly affects aio_mlockall 4 | 8 which was parsed as
15 (aio_mlockall 4) | 8).
16 - do not use a prototype for select in Coro::Select, as CORE::select also
17 doesn't have one.
18
196.52 Tue Aug 14 18:49:43 CEST 2018
20 - libcoro update: allow sharing of coro threads using the pthreads
21 backend among different pthreads, as is required by Coro::Multicore.
22 - always allow ->call and ->eval when the coro is the current coroutine. this
23 makes it possible, among other things, to call these on $Coro::main.
24 - minor code cleanups.
25
266.514 Thu Aug 31 18:25:31 CEST 2017
27 - safe_cancel no longer croaks when called on already-destroyed
28 thread, but instead "just works".
29
306.513 Sat Jul 15 01:18:51 CEST 2017
31 - experimental 5.22 comaptibility changes (PadlistNAMES).
32 - removed attributes example and made sure the other examples
33 still work.
34 - fix some statevar types for newer perls, should be of no consequence.
35
366.512 Fri Jul 14 05:03:17 CEST 2017
37 - seems to pass test suite down till 5.8.9, so make this the
38 minimum requirement in Makefile.PL.
39 - experimental 5.24 compatibility changes (SUB_ARGARRAY).
40 - experimental 5.26 compatibility changes (PL_comppad -> PADOFFSET).
41 - disable FORTIFY_SOURCE to avoid broken (but well-intentioned)
42 fortified longjmp variants in some libcs.
43 - re-try JIT allocation without PROT_EXEC, to hopefully improve
44 portability (still doesn't seem to work around broken selinux
45 mmap everywhere).
46 - speling fixes (Xavier Guimard).
47
486.511 Sun Jun 26 23:44:50 CEST 2016
49 - make it compile with threaded perls again.
50 - simplify and speed up __DIE__ and __WARN__ handling.
51
526.51 Sat Jun 25 20:57:20 CEST 2016
53 - 6.5 release didn't compile on most older perls due to
54 a logic error enabling experimental 5.24 code for all versions.
55 - since various broken or deficient patches float around
56 to work around the vtbl API breakage in perl, let's provide
57 our own workaround, which seems to be much less invasive
58 and more compatible than the approaches seen so far. YMMV.
59 - work around assertion failure in perl_destruct on 5.24
60 (analyzed by Dave Mitchell).
61
626.5 Wed Jun 22 22:23:50 CEST 2016
63 - swap_sv swapping order was not symmetrical, causing
64 wrong swaps when swap_sv was used multiple times on the
65 same sv in the same thread.
66 - swap_sv calls can now be undone by calling it again
67 with the same variables.
68 - swap_sv calls will now be undone in async_pool threads.
69 - split Coro::Semaphore::up/adjust into separate xs functions
70 for better error reporting, at slight codesize increase.
71 - (libcoro) arm assembly support, please test and report.
72 - adjust to PL_savestack changes in perl 5.24 (adapted from
73 the debian patch, which unfortunately gets it wrong).
74
756.49 Sat Oct 17 01:40:12 CEST 2015
76 - throwing an exception to a thread waiting in
77 Coro::Handle using Coro::EV did not stop the watchers,
78 causing the next call to fail (testcase by Martin Pritchard).
79 - bump minimum perl version to 5.10.
80
816.48 Sun Oct 4 19:03:51 CEST 2015
82 - fix memory leak when Coro::Handle uses Coro::EV internally
83 (testcase by Sten Sten).
84 - update code to libev 4 API (internally, Coro still used the
85 version 3 API calls).
86 - remove unused hv_sig.
87
886.47 Sat Jul 11 03:58:20 CEST 2015
89 - swap_svs - NVs can be in the SV head beginning with 5.20.
90
916.46 Tue Jun 30 14:36:30 CEST 2015
92 - restore portability to perls with windows fork emulation
93 (patch by Petr Písař).
94
956.45 Tue Jun 30 01:40:08 CEST 2015
96 - restore portability to perl 5.16 and below.
97
986.44 Tue Jun 30 00:41:54 CEST 2015
99 - avoid segfaulting (or worse) when tracing a canceled thread.
100 - the Event module silently broke it's public hook API, causing
101 failures on perls compiled with -Duselongdouble. Requiring
102 the latest version of Event because I don't know which release
103 changed this (it's not mentioned in the ChangeLog).
104 - allow xs level enterleave hooks via CoroAPI.
105
1066.43 Thu Jun 4 15:38:14 CEST 2015
107 - use stability canary.
108 - port to stableperl-5.22.0-1.001.
109 - update libecb.
110
1116.42 Wed Feb 11 20:29:52 CET 2015
112 - Coro::SemaphoreSet->try did not actually work (analyzed by
113 SATO Kentaro).
114 - upgrade libecb to be C11 compliant.
115
1166.41 Sat Sep 6 22:08:46 CEST 2014
117 - restore portability to perl 5.8.x.
118 - give new Coro's a valid GvHV(PL_hintgv) - this is slow and takes
119 up some memory, but fixes "use feature" and similar modules
120 when used inside a Coro.
121 - allow zero as argument to Coro::Channel to mean the same thing
122 as no argument. this works with older versions as well,
123 but wasn't legal until now.
124 - slightly better c header file detection.
125
1266.39 Mon Jun 2 00:00:08 CEST 2014
127 - work around more incompatible changes in 5.20.
128
1296.38 Sun Jun 1 21:54:23 CEST 2014
130 - check that perl slots actually have enough space to hold
131 interpreter variables.
132 - untested port to perl 5.19 (64 bit tmps indices) (reported
133 by Andreas König).
134 - croak when cancel is called without a thread context.
135
1366.37 Tue Mar 4 13:27:33 CET 2014
137 - *sigh*, removed leftover debugging code from debugging a
138 perl bug, of all things.
139
1406.36 Tue Mar 4 07:11:59 CET 2014
141 - semaphores would not clear the destroy hook when interrupted
142 by ->throw, causing segfaults or worse.
143 - ->throw on a thread waiting for a semaphore did not acquire
144 the semaphore, but also didn't wake up other waiters,
145 possibly causing a deadlock.
146 - "FATAL: $Coro::IDLE blocked itself" will now use Carp::confess
147 to report a full stacktrace, which should help find out
148 where the actual call is.
149 - "atomically" destroy data in slf_destroy, because it is
150 the right thing to do, just in case.
151 - disable ecb.h libm dependency, to compile on ancient systems
152 or under adverse conditions.
153
1546.33 Mon Nov 18 11:26:27 CET 2013
155 - do not crash when freeing padlists with holes (in 5.18).
156 - tentative SVt_BIND 5.19 port/fix.
157
1586.32 Tue Nov 5 15:35:35 CET 2013
159 - use a new algorithm to derive padlists for perl 5.18. The old
160 one could lead to 0-pointer accesses inside perl (reported
161 by Darin McBride).
162
1636.31 Thu May 9 07:39:48 CEST 2013
164 - Coro::AIO requests would crash if the thread was ready'd
165 while the request was ongoing.
166
1676.29 Wed May 8 02:55:18 CEST 2013
168 - when an on_destroy handler destructs the coro currently being
169 destructed a perl scalar could be accessed after being freed,
170 likely causing a crash.
171
1726.28 Wed Mar 6 06:58:02 CET 2013
173 - clean remnants of existing __DIE__ and __WARN__ handlers so
174 they lose their magic and will not cause segfaults later
175 (testcase by Andrey Sagulin).
176 - improved Coro::State documentation a bit.
177 - Coro::Debug::command now flushes the output.
178 - add hack detection code for x32 abi, because the braindead slugs
179 who designed that made it look exactly like x86_64 without
180 providing proper compile time symbols to test for it. as a result,
181 this detection cannot work reliably.
182 - valgrind stack registering was broken.
183 - do not rely on Time::HiRes anymore in Coro::Debug.
184
1856.23 Fri Dec 7 23:36:37 CET 2012
186 - use experimental fiber implementation on native windows
187 perls.
188 - use sizeof (void *) as multiplication factor for stack sizes,
189 to accomodate the totally braindamaged microsoft 64 bit "os".
190 - changed verifier host from win2k-ap510-32 to win7-sp516-32/64.
191 activeperl 5.16 crashes when PerlIO_define_layer is called due
192 to some bug in the perl dll, strawberry perl at least passes
193 the testsuite.
194 - implement Coro::Handle->peeraddr/host/port, for slightly
195 improved compatibility with LWP.
196 - implement 5.17 compatibility by almost blindly applying a
197 good-looking patch by Father Chrysostomos.
198 - move stack management functions into libcoro 3.
199 - libcoro version 3 "released".
200 - support magic values as timed_io_once args.
201 - recommend AnyEvent 7+ or EV 4+, also require EV
202 version 4 or newer for Coro::EV.
203
2046.10 Tue Oct 9 01:14:27 CEST 2012
205 - updated ecb.h, it had a typo that caused it to not compile on many
206 big endian systems (reported by many people).
207 - disable memory fences in ecb.h to improve portability.
208
2096.09 Sat Oct 6 23:25:02 CEST 2012
210 - Coro::EV I/O watchers were not interruptible by exceptions
211 (Coro::State::throw) (testcase by sten).
212 - ->throw now puts threads into the ready queue, as this seems to
213 be expected by existing code, and code that doesn't cope with spurious
214 wakeups needs fixing anyway.
215 - use fd -1 in mmap.
216 - cast I32 to int in error message printf.
217 - warn about broken so-called "hardened" kernels.
218
2196.08 Fri Apr 13 12:05:47 CEST 2012
220 - be more aggressive about exiting like perl does - formerly,
221 exiting from the non-main thread would not execute END blocks.
222
2236.07 Fri Nov 11 21:21:48 CET 2011
224 - work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV).
225 - update ecb.h.
226
2276.06 Mon Aug 8 23:59:48 CEST 2011
228 - cygwin unfortunately patches the stack at runtime, so we use the pthreads
229 backend, which is an order of magnitude slower. unfortunately, cygwins
230 pthread implementation isn't very complete either, so allocate the stack
231 twice just to be sure.
232 (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS,
233 in its ithreaded perl - best recompile cygwin and use the 'w'indows
234 backend for much better performance. also disable ithreads for
235 even better performance...).
236
2376.05 Thu Aug 4 21:36:36 CEST 2011
238 - blush, condvar values would not be propagated from send to recv anymore
239 (reported by Chip Salzenberg).
240 - use exponential increase for the readline buffer length in
241 Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes.
242
2436.04 Wed Aug 3 17:15:45 CEST 2011
244 - use even more efficient and more compatible condvars for
245 compatibility to AnyEvent 6.x :)
246 - more inconsequential ecb.h updates.
247
2486.03 Wed Aug 3 11:41:30 CEST 2011
249 - change how Coro patches AnyEvent condvars for compatibility to
250 AnyEvent 6.x.
251 - update ecb.h, to no longer include <pthread.h> in case WinNT.h
252 hasn't been included.
253
2546.02 Wed Jul 13 04:35:19 CEST 2011
255 - "improve portability to Gentoo" - gentoo manages to put perl variables
256 in memory areas that are farther than 2gb apart, which the jit couldn't
257 handle and barfed. now it's just a bit slower on gentoo and similar
258 systems.
259
2606.01 Sun Jul 3 12:31:14 CEST 2011
261 - workarounds are good, but the test for whether pthreads are used
262 was not good. this one should be better.
263 - check differently whether gcc generates cfi instructions itself.
264
2656.0 Wed Jun 29 19:43:35 CEST 2011
266 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
267 destroyed and cleaned up automatically (e.g. async { schedule }).
268 - implement a JIT compiler for part of the thread switch code,
269 which gives a 50% speed improvement on threaded perls, and
270 about 4% on non-threaded perls (so threaded perls now finally
271 reach about half the speed of non-threaded perls).
272 - slightly modernise Coro::Intro, add section about rouse functions.
273 - avoid DEFSV and ERRSV, giving another 10% improvement
274 in thread switching.
275 - Coro::State->is_destroyed is now called is_zombie.
276 - implement a Coro->safe_cancel method that might fail, but
277 cancels in a "safer" way if it succeeds.
278 - add preliminary support for DEBUGGING perls.
279 - get rid of two hash-accesses when initialising a new Coro - this
280 speeds up coro creation by almost a factor of two.
281 - croak when a coro that is being cancelled tries to block
282 (e.g. while executing a guard block), instead of crashing or
283 deadlocking.
284 - use a more robust and also faster method to identify Coro::State
285 objects - speeds up everything a bit.
286 - implement Coro->cancel in XS for a 20% speed improvement, and to
287 be able to implement mutual cancellation.
288 - speed up context switches by a percent or two by more efficiently
289 allocating context stack entries.
290 - implement Coro->join and Coro->on_destroy in XS for a speedup and
291 a reduction in memory use.
292 - cancelling a coro while it itself is cancelling another coro is
293 now supported and working, instead of triggering an assertion.
294 - be a bit more crash-resistant when calling (buggy) on_destroy
295 callbacks (best effort).
296 - move on_destroy into the slf_frame, to allow extension slf
297 functions to have destructors.
298 - get rid if coro refcounting - simply crash in other interpreter
299 threads by nulling the pointers on clone.
300 - simplify warn/die hook handling when loading Coro - the convoluted
301 logic seems to be no longer neccessary.
302 - use libecb instead of our own home-grown gcc hacks.
303 - document alternatives to Coro::LWP. Please use them :)
304 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
305 sigaltstack. Really. wine suffers from it, erlang suffers from it,
306 and it's known since at least 2006.
307
3085.372 Wed Feb 23 06:14:30 CET 2011
309 - apparently mingw doesn't provide a working gettimeofday, try to
310 work around that by relying on Time::HiRes (indirectly brought to
311 my attention by Max Maischein).
312 - fix some portability issues when Time::HiRes was used.
313
3145.371 Mon Feb 21 14:36:08 CET 2011
315 - backport to windows process emulation code again.
316
3175.37 Sat Feb 19 07:49:44 CET 2011
318 - add a big "Coro thread life cycle" section to "man Coro".
319 - try a tentative workaround against the breakage that 5.13 has
320 introduced without depreciation period. sigh.
321 - no longer use Time::HiRes if gettimeofday is available, which
322 saves quite a lot of memory.
8 323
95.36 Sun Feb 13 05:33:41 CET 2011 3245.36 Sun Feb 13 05:33:41 CET 2011
10 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore, 325 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
11 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new" 326 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
12 method call. 327 method call.
… …
314 - ->throw is now supported on Coro::State objects. 629 - ->throw is now supported on Coro::State objects.
315 - clean up cctx creation code a bit. 630 - clean up cctx creation code a bit.
316 - entersub is actually a UNOP, not a LOGOP (not a bugfix). 631 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
317 632
3184.9 Sat Nov 8 17:45:27 CET 2008 6334.9 Sat Nov 8 17:45:27 CET 2008
319 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there). 634 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
320 - (libcoro) no longer leak threads in the experimental pthread backend, 635 - (libcoro) no longer leak threads in the experimental pthread backend,
321 also speed it up considerably. 636 also speed it up considerably.
322 - (libcoro) do not rely on makecontext passing void *'s unscathed. 637 - (libcoro) do not rely on makecontext passing void *'s unscathed.
323 - fix compiletime dependencies on libcoro in the Makefile. 638 - fix compiletime dependencies on libcoro in the Makefile.
324 - cctx_count wasn't always updated properly. 639 - cctx_count wasn't always updated properly.
… …
386 - remove debugging code related to MgPV_nolen_const, also try to 701 - remove debugging code related to MgPV_nolen_const, also try to
387 make it compile with perl 5.8.6 (yes, apple apparently loves 702 make it compile with perl 5.8.6 (yes, apple apparently loves
388 outdated software). Reported by John S. 703 outdated software). Reported by John S.
389 704
3904.744 Tue Jul 8 22:06:35 CEST 2008 7054.744 Tue Jul 8 22:06:35 CEST 2008
391 - correctly provide default DIE/WARN handlers as documented. 706 - correctly provide default DIE/WARN handlers as documented.
392 - also overwrite PL_vtbl_sigelem.svt_clear, even though current 707 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
393 implementations inside perl work fine for us. 708 implementations inside perl work fine for us.
394 709
3954.743 Mon Jun 16 00:21:57 CEST 2008 7104.743 Mon Jun 16 00:21:57 CEST 2008
396 - when using Coro::EV without running EV::loop it could 711 - when using Coro::EV without running EV::loop it could
… …
418 - sprinkle "no warnings" freely over everything, also suppress 733 - sprinkle "no warnings" freely over everything, also suppress
419 warnings for some other modules. 734 warnings for some other modules.
420 - fix typo in WSAEWOULDBLOCK. 735 - fix typo in WSAEWOULDBLOCK.
421 736
4224.72 Sun May 25 05:14:36 CEST 2008 7374.72 Sun May 25 05:14:36 CEST 2008
423 - tweak META.yaml a bit, unfortunately, there is no documented way 738 - tweak META.yaml a bit, unfortunately, there is no documented way
424 to have optional dependencies with CPAN. doh :( 739 to have optional dependencies with CPAN. doh :(
425 - avoid running some tests on windows because they would fail due to 740 - avoid running some tests on windows because they would fail due to
426 perl bug (broken fork, broken pipes...). 741 perl bug (broken fork, broken pipes...).
427 - work around perl on windows bugs where perl returns undocumented 742 - work around perl on windows bugs where perl returns undocumented
428 error codes for sysread, syswrite etc. by taking advantage 743 error codes for sysread, syswrite etc. by taking advantage
… …
432 - use unix domain sockets in testsuite to work around 747 - use unix domain sockets in testsuite to work around
433 common perl implementation bugs on widows (they are emulated by 748 common perl implementation bugs on widows (they are emulated by
434 tcp sockets on windows. ugh.) 749 tcp sockets on windows. ugh.)
435 750
4364.71 Sat May 24 20:01:27 CEST 2008 7514.71 Sat May 24 20:01:27 CEST 2008
437 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()"). 752 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
438 - take advantage of async name resolution of AnyEvent::Util. 753 - take advantage of async name resolution of AnyEvent::Util.
439 - work around brutal inet_aton override in Coro::LWP. 754 - work around brutal inet_aton override in Coro::LWP.
440 - take advantage of the readyhook in Coro::EV, for smoother 755 - take advantage of the readyhook in Coro::EV, for smoother
441 scheduling. 756 scheduling.
442 757
4434.7 Sun May 11 00:32:19 CEST 2008 7584.7 Sun May 11 00:32:19 CEST 2008
444 - completely reworked the Coro manpage. 759 - completely reworked the Coro manpage.
445 - added Coro::AnyEvent, generic event loop integration. 760 - added Coro::AnyEvent, generic event loop integration.
446 - implement cancel, ready and kill commands in Coro::Debug. 761 - implement cancel, ready and kill commands in Coro::Debug.
447 - document find_coro in Coro::Debug. 762 - document find_coro in Coro::Debug.
448 - incompatible change: rename has_stack to has_cctx. 763 - incompatible change: rename has_stack to has_cctx.
449 - Coro::AIO and Coro::BDB no longer force event model detection, 764 - Coro::AIO and Coro::BDB no longer force event model detection,
450 use AnyEvent::AIO and AnyEvent::BDB. 765 use AnyEvent::AIO and AnyEvent::BDB.
… …
574 889
5754.11 Thu Oct 11 02:40:24 CEST 2007 8904.11 Thu Oct 11 02:40:24 CEST 2007
576 - port to threaded perls. 891 - port to threaded perls.
577 892
5784.1 Thu Oct 11 02:38:16 CEST 2007 8934.1 Thu Oct 11 02:38:16 CEST 2007
579 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now 894 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
580 be local to each coro (see Coro::State). 895 be local to each coro (see Coro::State).
581 - incompatible change: for very deep reasons, cede and cede_notself 896 - incompatible change: for very deep reasons, cede and cede_notself
582 cannot return anything, so nothing will be returned. 897 cannot return anything, so nothing will be returned.
583 - possibly bring back 5.10 compatibility (untested). 898 - possibly bring back 5.10 compatibility (untested).
584 - work around stupid (and wrong) warning on 5.10 :(. 899 - work around stupid (and wrong) warning on 5.10 :(.
… …
656 but stateful semantics. 971 but stateful semantics.
657 - fixed a lot of typos in Coro.pm (patch submitted by David 972 - fixed a lot of typos in Coro.pm (patch submitted by David
658 Steinbrunner, which applied flawlessly). 973 Steinbrunner, which applied flawlessly).
659 974
6603.6 Sat Apr 14 17:13:31 CEST 2007 9753.6 Sat Apr 14 17:13:31 CEST 2007
661 - added some bugfixes to get eg/myhttpd working again. 976 - added some bugfixes to get eg/myhttpd working again.
662 - added Coro::Storable for often-cede'ing freeze/thaw. 977 - added Coro::Storable for often-cede'ing freeze/thaw.
663 - try to do a clean exit when a coroutine calls exit 978 - try to do a clean exit when a coroutine calls exit
664 (EXPERIMENTAL). 979 (EXPERIMENTAL).
665 - got rid of indirect call through _coro_init. 980 - got rid of indirect call through _coro_init.
666 - updated the partly antique examples in eg/ to 981 - updated the partly antique examples in eg/ to

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