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Comparing Coro/Changes (file contents):
Revision 1.538 by root, Fri May 7 20:28:30 2010 UTC vs.
Revision 1.679 by root, Sun Dec 16 10:06:34 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?
8 10
116.54 Sun Dec 16 11:06:07 CET 2018
12 - reinstate Coro::Select::select prototype - it breaks more than it fixes.
13
146.53 Sun Dec 16 10:33:15 CET 2018
15 - the autogenerated prototypes of Coro::AIO now add ";" at the end
16 to avoid generating named unary operators and messing up parsing
17 (mostly affects aio_mlockall 4 | 8 which was parsed as
18 (aio_mlockall 4) | 8).
19 - do not use a prototype for select in Coro::Select, as CORE::select also
20 doesn't have one.
21
226.52 Tue Aug 14 18:49:43 CEST 2018
23 - libcoro update: allow sharing of coro threads using the pthreads
24 backend among different pthreads, as is required by Coro::Multicore.
25 - always allow ->call and ->eval when the coro is the current coroutine. this
26 makes it possible, among other things, to call these on $Coro::main.
27 - minor code cleanups.
28
296.514 Thu Aug 31 18:25:31 CEST 2017
30 - safe_cancel no longer croaks when called on already-destroyed
31 thread, but instead "just works".
32
336.513 Sat Jul 15 01:18:51 CEST 2017
34 - experimental 5.22 comaptibility changes (PadlistNAMES).
35 - removed attributes example and made sure the other examples
36 still work.
37 - fix some statevar types for newer perls, should be of no consequence.
38
396.512 Fri Jul 14 05:03:17 CEST 2017
40 - seems to pass test suite down till 5.8.9, so make this the
41 minimum requirement in Makefile.PL.
42 - experimental 5.24 compatibility changes (SUB_ARGARRAY).
43 - experimental 5.26 compatibility changes (PL_comppad -> PADOFFSET).
44 - disable FORTIFY_SOURCE to avoid broken (but well-intentioned)
45 fortified longjmp variants in some libcs.
46 - re-try JIT allocation without PROT_EXEC, to hopefully improve
47 portability (still doesn't seem to work around broken selinux
48 mmap everywhere).
49 - speling fixes (Xavier Guimard).
50
516.511 Sun Jun 26 23:44:50 CEST 2016
52 - make it compile with threaded perls again.
53 - simplify and speed up __DIE__ and __WARN__ handling.
54
556.51 Sat Jun 25 20:57:20 CEST 2016
56 - 6.5 release didn't compile on most older perls due to
57 a logic error enabling experimental 5.24 code for all versions.
58 - since various broken or deficient patches float around
59 to work around the vtbl API breakage in perl, let's provide
60 our own workaround, which seems to be much less invasive
61 and more compatible than the approaches seen so far. YMMV.
62 - work around assertion failure in perl_destruct on 5.24
63 (analyzed by Dave Mitchell).
64
656.5 Wed Jun 22 22:23:50 CEST 2016
66 - swap_sv swapping order was not symmetrical, causing
67 wrong swaps when swap_sv was used multiple times on the
68 same sv in the same thread.
69 - swap_sv calls can now be undone by calling it again
70 with the same variables.
71 - swap_sv calls will now be undone in async_pool threads.
72 - split Coro::Semaphore::up/adjust into separate xs functions
73 for better error reporting, at slight codesize increase.
74 - (libcoro) arm assembly support, please test and report.
75 - adjust to PL_savestack changes in perl 5.24 (adapted from
76 the debian patch, which unfortunately gets it wrong).
77
786.49 Sat Oct 17 01:40:12 CEST 2015
79 - throwing an exception to a thread waiting in
80 Coro::Handle using Coro::EV did not stop the watchers,
81 causing the next call to fail (testcase by Martin Pritchard).
82 - bump minimum perl version to 5.10.
83
846.48 Sun Oct 4 19:03:51 CEST 2015
85 - fix memory leak when Coro::Handle uses Coro::EV internally
86 (testcase by Sten Sten).
87 - update code to libev 4 API (internally, Coro still used the
88 version 3 API calls).
89 - remove unused hv_sig.
90
916.47 Sat Jul 11 03:58:20 CEST 2015
92 - swap_svs - NVs can be in the SV head beginning with 5.20.
93
946.46 Tue Jun 30 14:36:30 CEST 2015
95 - restore portability to perls with windows fork emulation
96 (patch by Petr Písař).
97
986.45 Tue Jun 30 01:40:08 CEST 2015
99 - restore portability to perl 5.16 and below.
100
1016.44 Tue Jun 30 00:41:54 CEST 2015
102 - avoid segfaulting (or worse) when tracing a canceled thread.
103 - the Event module silently broke it's public hook API, causing
104 failures on perls compiled with -Duselongdouble. Requiring
105 the latest version of Event because I don't know which release
106 changed this (it's not mentioned in the ChangeLog).
107 - allow xs level enterleave hooks via CoroAPI.
108
1096.43 Thu Jun 4 15:38:14 CEST 2015
110 - use stability canary.
111 - port to stableperl-5.22.0-1.001.
112 - update libecb.
113
1146.42 Wed Feb 11 20:29:52 CET 2015
115 - Coro::SemaphoreSet->try did not actually work (analyzed by
116 SATO Kentaro).
117 - upgrade libecb to be C11 compliant.
118
1196.41 Sat Sep 6 22:08:46 CEST 2014
120 - restore portability to perl 5.8.x.
121 - give new Coro's a valid GvHV(PL_hintgv) - this is slow and takes
122 up some memory, but fixes "use feature" and similar modules
123 when used inside a Coro.
124 - allow zero as argument to Coro::Channel to mean the same thing
125 as no argument. this works with older versions as well,
126 but wasn't legal until now.
127 - slightly better c header file detection.
128
1296.39 Mon Jun 2 00:00:08 CEST 2014
130 - work around more incompatible changes in 5.20.
131
1326.38 Sun Jun 1 21:54:23 CEST 2014
133 - check that perl slots actually have enough space to hold
134 interpreter variables.
135 - untested port to perl 5.19 (64 bit tmps indices) (reported
136 by Andreas König).
137 - croak when cancel is called without a thread context.
138
1396.37 Tue Mar 4 13:27:33 CET 2014
140 - *sigh*, removed leftover debugging code from debugging a
141 perl bug, of all things.
142
1436.36 Tue Mar 4 07:11:59 CET 2014
144 - semaphores would not clear the destroy hook when interrupted
145 by ->throw, causing segfaults or worse.
146 - ->throw on a thread waiting for a semaphore did not acquire
147 the semaphore, but also didn't wake up other waiters,
148 possibly causing a deadlock.
149 - "FATAL: $Coro::IDLE blocked itself" will now use Carp::confess
150 to report a full stacktrace, which should help find out
151 where the actual call is.
152 - "atomically" destroy data in slf_destroy, because it is
153 the right thing to do, just in case.
154 - disable ecb.h libm dependency, to compile on ancient systems
155 or under adverse conditions.
156
1576.33 Mon Nov 18 11:26:27 CET 2013
158 - do not crash when freeing padlists with holes (in 5.18).
159 - tentative SVt_BIND 5.19 port/fix.
160
1616.32 Tue Nov 5 15:35:35 CET 2013
162 - use a new algorithm to derive padlists for perl 5.18. The old
163 one could lead to 0-pointer accesses inside perl (reported
164 by Darin McBride).
165
1666.31 Thu May 9 07:39:48 CEST 2013
167 - Coro::AIO requests would crash if the thread was ready'd
168 while the request was ongoing.
169
1706.29 Wed May 8 02:55:18 CEST 2013
171 - when an on_destroy handler destructs the coro currently being
172 destructed a perl scalar could be accessed after being freed,
173 likely causing a crash.
174
1756.28 Wed Mar 6 06:58:02 CET 2013
176 - clean remnants of existing __DIE__ and __WARN__ handlers so
177 they lose their magic and will not cause segfaults later
178 (testcase by Andrey Sagulin).
179 - improved Coro::State documentation a bit.
180 - Coro::Debug::command now flushes the output.
181 - add hack detection code for x32 abi, because the braindead slugs
182 who designed that made it look exactly like x86_64 without
183 providing proper compile time symbols to test for it. as a result,
184 this detection cannot work reliably.
185 - valgrind stack registering was broken.
186 - do not rely on Time::HiRes anymore in Coro::Debug.
187
1886.23 Fri Dec 7 23:36:37 CET 2012
189 - use experimental fiber implementation on native windows
190 perls.
191 - use sizeof (void *) as multiplication factor for stack sizes,
192 to accomodate the totally braindamaged microsoft 64 bit "os".
193 - changed verifier host from win2k-ap510-32 to win7-sp516-32/64.
194 activeperl 5.16 crashes when PerlIO_define_layer is called due
195 to some bug in the perl dll, strawberry perl at least passes
196 the testsuite.
197 - implement Coro::Handle->peeraddr/host/port, for slightly
198 improved compatibility with LWP.
199 - implement 5.17 compatibility by almost blindly applying a
200 good-looking patch by Father Chrysostomos.
201 - move stack management functions into libcoro 3.
202 - libcoro version 3 "released".
203 - support magic values as timed_io_once args.
204 - recommend AnyEvent 7+ or EV 4+, also require EV
205 version 4 or newer for Coro::EV.
206
2076.10 Tue Oct 9 01:14:27 CEST 2012
208 - updated ecb.h, it had a typo that caused it to not compile on many
209 big endian systems (reported by many people).
210 - disable memory fences in ecb.h to improve portability.
211
2126.09 Sat Oct 6 23:25:02 CEST 2012
213 - Coro::EV I/O watchers were not interruptible by exceptions
214 (Coro::State::throw) (testcase by sten).
215 - ->throw now puts threads into the ready queue, as this seems to
216 be expected by existing code, and code that doesn't cope with spurious
217 wakeups needs fixing anyway.
218 - use fd -1 in mmap.
219 - cast I32 to int in error message printf.
220 - warn about broken so-called "hardened" kernels.
221
2226.08 Fri Apr 13 12:05:47 CEST 2012
223 - be more aggressive about exiting like perl does - formerly,
224 exiting from the non-main thread would not execute END blocks.
225
2266.07 Fri Nov 11 21:21:48 CET 2011
227 - work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV).
228 - update ecb.h.
229
2306.06 Mon Aug 8 23:59:48 CEST 2011
231 - cygwin unfortunately patches the stack at runtime, so we use the pthreads
232 backend, which is an order of magnitude slower. unfortunately, cygwins
233 pthread implementation isn't very complete either, so allocate the stack
234 twice just to be sure.
235 (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS,
236 in its ithreaded perl - best recompile cygwin and use the 'w'indows
237 backend for much better performance. also disable ithreads for
238 even better performance...).
239
2406.05 Thu Aug 4 21:36:36 CEST 2011
241 - blush, condvar values would not be propagated from send to recv anymore
242 (reported by Chip Salzenberg).
243 - use exponential increase for the readline buffer length in
244 Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes.
245
2466.04 Wed Aug 3 17:15:45 CEST 2011
247 - use even more efficient and more compatible condvars for
248 compatibility to AnyEvent 6.x :)
249 - more inconsequential ecb.h updates.
250
2516.03 Wed Aug 3 11:41:30 CEST 2011
252 - change how Coro patches AnyEvent condvars for compatibility to
253 AnyEvent 6.x.
254 - update ecb.h, to no longer include <pthread.h> in case WinNT.h
255 hasn't been included.
256
2576.02 Wed Jul 13 04:35:19 CEST 2011
258 - "improve portability to Gentoo" - gentoo manages to put perl variables
259 in memory areas that are farther than 2gb apart, which the jit couldn't
260 handle and barfed. now it's just a bit slower on gentoo and similar
261 systems.
262
2636.01 Sun Jul 3 12:31:14 CEST 2011
264 - workarounds are good, but the test for whether pthreads are used
265 was not good. this one should be better.
266 - check differently whether gcc generates cfi instructions itself.
267
2686.0 Wed Jun 29 19:43:35 CEST 2011
269 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
270 destroyed and cleaned up automatically (e.g. async { schedule }).
271 - implement a JIT compiler for part of the thread switch code,
272 which gives a 50% speed improvement on threaded perls, and
273 about 4% on non-threaded perls (so threaded perls now finally
274 reach about half the speed of non-threaded perls).
275 - slightly modernise Coro::Intro, add section about rouse functions.
276 - avoid DEFSV and ERRSV, giving another 10% improvement
277 in thread switching.
278 - Coro::State->is_destroyed is now called is_zombie.
279 - implement a Coro->safe_cancel method that might fail, but
280 cancels in a "safer" way if it succeeds.
281 - add preliminary support for DEBUGGING perls.
282 - get rid of two hash-accesses when initialising a new Coro - this
283 speeds up coro creation by almost a factor of two.
284 - croak when a coro that is being cancelled tries to block
285 (e.g. while executing a guard block), instead of crashing or
286 deadlocking.
287 - use a more robust and also faster method to identify Coro::State
288 objects - speeds up everything a bit.
289 - implement Coro->cancel in XS for a 20% speed improvement, and to
290 be able to implement mutual cancellation.
291 - speed up context switches by a percent or two by more efficiently
292 allocating context stack entries.
293 - implement Coro->join and Coro->on_destroy in XS for a speedup and
294 a reduction in memory use.
295 - cancelling a coro while it itself is cancelling another coro is
296 now supported and working, instead of triggering an assertion.
297 - be a bit more crash-resistant when calling (buggy) on_destroy
298 callbacks (best effort).
299 - move on_destroy into the slf_frame, to allow extension slf
300 functions to have destructors.
301 - get rid if coro refcounting - simply crash in other interpreter
302 threads by nulling the pointers on clone.
303 - simplify warn/die hook handling when loading Coro - the convoluted
304 logic seems to be no longer neccessary.
305 - use libecb instead of our own home-grown gcc hacks.
306 - document alternatives to Coro::LWP. Please use them :)
307 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
308 sigaltstack. Really. wine suffers from it, erlang suffers from it,
309 and it's known since at least 2006.
310
3115.372 Wed Feb 23 06:14:30 CET 2011
312 - apparently mingw doesn't provide a working gettimeofday, try to
313 work around that by relying on Time::HiRes (indirectly brought to
314 my attention by Max Maischein).
315 - fix some portability issues when Time::HiRes was used.
316
3175.371 Mon Feb 21 14:36:08 CET 2011
318 - backport to windows process emulation code again.
319
3205.37 Sat Feb 19 07:49:44 CET 2011
321 - add a big "Coro thread life cycle" section to "man Coro".
322 - try a tentative workaround against the breakage that 5.13 has
323 introduced without depreciation period. sigh.
324 - no longer use Time::HiRes if gettimeofday is available, which
325 saves quite a lot of memory.
326
3275.36 Sun Feb 13 05:33:41 CET 2011
328 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
329 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
330 method call.
331 - undocument Coro::Timer::sleep and obsolete whole module.
332 - optimise Coro::Timer::timeout memory and cpu usage.
333 - slightly updated Coro::Intro for recent changes.
334 - do not initialise PL_dirty anymore.
335
3365.25 Thu Nov 11 01:08:39 CET 2010
337 - try a different approach on netbsd - netbsd 5 finally has marginally
338 working pthreads, but still broken ucontext/sigaltstack.
339 - openbsd 4.8 finally got their act together, Coro works out of the box
340 with asm, setjmp and pthreads (no change, just informational).
341
3425.24 Sat Oct 23 11:27:12 CEST 2010
343 - port to the EV 4.0 API.
344 - work around bugs in mingw32, making strawberry perl work
345 out of the box.
346 - correctly modify Coro::AIO function prototypes
347 so that they reflect the "no optional parameters" rule.
348 - "ported" libcoro to C++.
349
3505.23 Mon May 17 18:50:42 CEST 2010
9 - be more resistant to ordering changes when initialising 351 - be more resistant to ordering changes when initialising
10 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias 352 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
11 Waldorf). 353 Waldorf).
12 - document that perl 5.12 deliberately removed support for cloning. 354 - document that perl 5.12 deliberately removed support for cloning.
13 355
… …
290 - ->throw is now supported on Coro::State objects. 632 - ->throw is now supported on Coro::State objects.
291 - clean up cctx creation code a bit. 633 - clean up cctx creation code a bit.
292 - entersub is actually a UNOP, not a LOGOP (not a bugfix). 634 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
293 635
2944.9 Sat Nov 8 17:45:27 CET 2008 6364.9 Sat Nov 8 17:45:27 CET 2008
295 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there). 637 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
296 - (libcoro) no longer leak threads in the experimental pthread backend, 638 - (libcoro) no longer leak threads in the experimental pthread backend,
297 also speed it up considerably. 639 also speed it up considerably.
298 - (libcoro) do not rely on makecontext passing void *'s unscathed. 640 - (libcoro) do not rely on makecontext passing void *'s unscathed.
299 - fix compiletime dependencies on libcoro in the Makefile. 641 - fix compiletime dependencies on libcoro in the Makefile.
300 - cctx_count wasn't always updated properly. 642 - cctx_count wasn't always updated properly.
… …
362 - remove debugging code related to MgPV_nolen_const, also try to 704 - remove debugging code related to MgPV_nolen_const, also try to
363 make it compile with perl 5.8.6 (yes, apple apparently loves 705 make it compile with perl 5.8.6 (yes, apple apparently loves
364 outdated software). Reported by John S. 706 outdated software). Reported by John S.
365 707
3664.744 Tue Jul 8 22:06:35 CEST 2008 7084.744 Tue Jul 8 22:06:35 CEST 2008
367 - correctly provide default DIE/WARN handlers as documented. 709 - correctly provide default DIE/WARN handlers as documented.
368 - also overwrite PL_vtbl_sigelem.svt_clear, even though current 710 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
369 implementations inside perl work fine for us. 711 implementations inside perl work fine for us.
370 712
3714.743 Mon Jun 16 00:21:57 CEST 2008 7134.743 Mon Jun 16 00:21:57 CEST 2008
372 - when using Coro::EV without running EV::loop it could 714 - when using Coro::EV without running EV::loop it could
… …
394 - sprinkle "no warnings" freely over everything, also suppress 736 - sprinkle "no warnings" freely over everything, also suppress
395 warnings for some other modules. 737 warnings for some other modules.
396 - fix typo in WSAEWOULDBLOCK. 738 - fix typo in WSAEWOULDBLOCK.
397 739
3984.72 Sun May 25 05:14:36 CEST 2008 7404.72 Sun May 25 05:14:36 CEST 2008
399 - tweak META.yaml a bit, unfortunately, there is no documented way 741 - tweak META.yaml a bit, unfortunately, there is no documented way
400 to have optional dependencies with CPAN. doh :( 742 to have optional dependencies with CPAN. doh :(
401 - avoid running some tests on windows because they would fail due to 743 - avoid running some tests on windows because they would fail due to
402 perl bug (broken fork, broken pipes...). 744 perl bug (broken fork, broken pipes...).
403 - work around perl on windows bugs where perl returns undocumented 745 - work around perl on windows bugs where perl returns undocumented
404 error codes for sysread, syswrite etc. by taking advantage 746 error codes for sysread, syswrite etc. by taking advantage
… …
408 - use unix domain sockets in testsuite to work around 750 - use unix domain sockets in testsuite to work around
409 common perl implementation bugs on widows (they are emulated by 751 common perl implementation bugs on widows (they are emulated by
410 tcp sockets on windows. ugh.) 752 tcp sockets on windows. ugh.)
411 753
4124.71 Sat May 24 20:01:27 CEST 2008 7544.71 Sat May 24 20:01:27 CEST 2008
413 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()"). 755 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
414 - take advantage of async name resolution of AnyEvent::Util. 756 - take advantage of async name resolution of AnyEvent::Util.
415 - work around brutal inet_aton override in Coro::LWP. 757 - work around brutal inet_aton override in Coro::LWP.
416 - take advantage of the readyhook in Coro::EV, for smoother 758 - take advantage of the readyhook in Coro::EV, for smoother
417 scheduling. 759 scheduling.
418 760
4194.7 Sun May 11 00:32:19 CEST 2008 7614.7 Sun May 11 00:32:19 CEST 2008
420 - completely reworked the Coro manpage. 762 - completely reworked the Coro manpage.
421 - added Coro::AnyEvent, generic event loop integration. 763 - added Coro::AnyEvent, generic event loop integration.
422 - implement cancel, ready and kill commands in Coro::Debug. 764 - implement cancel, ready and kill commands in Coro::Debug.
423 - document find_coro in Coro::Debug. 765 - document find_coro in Coro::Debug.
424 - incompatible change: rename has_stack to has_cctx. 766 - incompatible change: rename has_stack to has_cctx.
425 - Coro::AIO and Coro::BDB no longer force event model detection, 767 - Coro::AIO and Coro::BDB no longer force event model detection,
426 use AnyEvent::AIO and AnyEvent::BDB. 768 use AnyEvent::AIO and AnyEvent::BDB.
… …
550 892
5514.11 Thu Oct 11 02:40:24 CEST 2007 8934.11 Thu Oct 11 02:40:24 CEST 2007
552 - port to threaded perls. 894 - port to threaded perls.
553 895
5544.1 Thu Oct 11 02:38:16 CEST 2007 8964.1 Thu Oct 11 02:38:16 CEST 2007
555 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now 897 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
556 be local to each coro (see Coro::State). 898 be local to each coro (see Coro::State).
557 - incompatible change: for very deep reasons, cede and cede_notself 899 - incompatible change: for very deep reasons, cede and cede_notself
558 cannot return anything, so nothing will be returned. 900 cannot return anything, so nothing will be returned.
559 - possibly bring back 5.10 compatibility (untested). 901 - possibly bring back 5.10 compatibility (untested).
560 - work around stupid (and wrong) warning on 5.10 :(. 902 - work around stupid (and wrong) warning on 5.10 :(.
… …
632 but stateful semantics. 974 but stateful semantics.
633 - fixed a lot of typos in Coro.pm (patch submitted by David 975 - fixed a lot of typos in Coro.pm (patch submitted by David
634 Steinbrunner, which applied flawlessly). 976 Steinbrunner, which applied flawlessly).
635 977
6363.6 Sat Apr 14 17:13:31 CEST 2007 9783.6 Sat Apr 14 17:13:31 CEST 2007
637 - added some bugfixes to get eg/myhttpd working again. 979 - added some bugfixes to get eg/myhttpd working again.
638 - added Coro::Storable for often-cede'ing freeze/thaw. 980 - added Coro::Storable for often-cede'ing freeze/thaw.
639 - try to do a clean exit when a coroutine calls exit 981 - try to do a clean exit when a coroutine calls exit
640 (EXPERIMENTAL). 982 (EXPERIMENTAL).
641 - got rid of indirect call through _coro_init. 983 - got rid of indirect call through _coro_init.
642 - updated the partly antique examples in eg/ to 984 - updated the partly antique examples in eg/ to

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