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Comparing Coro/Changes (file contents):
Revision 1.543 by root, Fri Oct 29 15:25:07 2010 UTC vs.
Revision 1.621 by root, Mon Nov 18 10:27:53 2013 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, andallow to unswap by repeat?
7TODO: swap_sv not undone in pool
8 8
96.33 Mon Nov 18 11:26:27 CET 2013
10 - do not crash when freeing padlists with holes (in 5.18).
11 - tentative SVt_BIND 5.19 port/fix.
12
136.32 Tue Nov 5 15:35:35 CET 2013
14 - use a new algorithm to derive padlists for perl 5.18. The old
15 one could lead to 0-pointer accesses inside perl (reported
16 by Darin McBride).
17
186.31 Thu May 9 07:39:48 CEST 2013
19 - Coro::AIO requests would crash if the thread was ready'd
20 while the request was ongoing.
21
226.29 Wed May 8 02:55:18 CEST 2013
23 - when an on_destroy handler destructs the coro currently being
24 destructed a perl scalar could be accessed after being freed,
25 likely causing a crash.
26
276.28 Wed Mar 6 06:58:02 CET 2013
28 - clean remnants of existing __DIE__ and __WARN__ handlers so
29 they lose their magic and will not cause segfaults later
30 (testcase by Andrey Sagulin).
31 - improved Coro::State documentation a bit.
32 - Coro::Debug::command now flushes the output.
33 - add hack detection code for x32 abi, because the braindead slugs
34 who designed that made it look exactly like x86_64 without
35 providing proper compile time symbols to test for it. as a result,
36 this detection cannot work reliably.
37 - valgrind stack registering was broken.
38 - do not rely on Time::HiRes anymore in Coro::Debug.
39
406.23 Fri Dec 7 23:36:37 CET 2012
41 - use experimental fiber implementation on native windows
42 perls.
43 - use sizeof (void *) as multiplication factor for stack sizes,
44 to accomodate the totally braindamaged microsoft 64 bit "os".
45 - changed verifier host from win2k-ap510-32 to win7-sp516-32/64.
46 activeperl 5.16 crashes when PerlIO_define_layer is called due
47 to some bug in the perl dll, strawberry perl at least passes
48 the testsuite.
49 - implement Coro::Handle->peeraddr/host/port, for slightly
50 improved compatibility with LWP.
51 - implement 5.17 compatibility by almost blindly applying a
52 good-looking patch by Father Chrysostomos.
53 - move stack management functions into libcoro 3.
54 - libcoro version 3 "released".
55 - support magic values as timed_io_once args.
56 - recommend AnyEvent 7+ or EV 4+, also require EV
57 version 4 or newer for Coro::EV.
58
596.10 Tue Oct 9 01:14:27 CEST 2012
60 - updated ecb.h, it had a typo that caused it to not compile on many
61 big endian systems (reported by many people).
62 - disable memory fences in ecb.h to improve portability.
63
646.09 Sat Oct 6 23:25:02 CEST 2012
65 - Coro::EV I/O watchers were not interruptible by exceptions
66 (Coro::State::throw) (testcase by sten).
67 - ->throw now puts threads into the ready queue, as this seems to
68 be expected by existing code, and code that doesn't cope with spurious
69 wakeups needs fixing anyway.
70 - use fd -1 in mmap.
71 - cast I32 to int in error message printf.
72 - warn about broken so-called "hardened" kernels.
73
746.08 Fri Apr 13 12:05:47 CEST 2012
75 - be more aggressive about exiting like perl does - formerly,
76 exiting from the non-main thread would not execute END blocks.
77
786.07 Fri Nov 11 21:21:48 CET 2011
79 - work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV).
80 - update ecb.h.
81
826.06 Mon Aug 8 23:59:48 CEST 2011
83 - cygwin unfortunately patches the stack at runtime, so we use the pthreads
84 backend, which is an order of magnitude slower. unfortunately, cygwins
85 pthread implementation isn't very complete either, so allocate the stack
86 twice just to be sure.
87 (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS,
88 in its ithreaded perl - best recompile cygwin and use the 'w'indows
89 backend for much better performance. also disable ithreads for
90 even better performance...).
91
926.05 Thu Aug 4 21:36:36 CEST 2011
93 - blush, condvar values would not be propagated from send to recv anymore
94 (reported by Chip Salzenberg).
95 - use exponential increase for the readline buffer length in
96 Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes.
97
986.04 Wed Aug 3 17:15:45 CEST 2011
99 - use even more efficient and more compatible condvars for
100 compatibility to AnyEvent 6.x :)
101 - more inconsequential ecb.h updates.
102
1036.03 Wed Aug 3 11:41:30 CEST 2011
104 - change how Coro patches AnyEvent condvars for compatibility to
105 AnyEvent 6.x.
106 - update ecb.h, to no longer include <pthread.h> in case WinNT.h
107 hasn't been included.
108
1096.02 Wed Jul 13 04:35:19 CEST 2011
110 - "improve portability to Gentoo" - gentoo manages to put perl variables
111 in memory areas that are farther than 2gb apart, which the jit couldn't
112 handle and barfed. now it's just a bit slower on gentoo and similar
113 systems.
114
1156.01 Sun Jul 3 12:31:14 CEST 2011
116 - workarounds are good, but the test for whether pthreads are used
117 was not good. thisone should be better.
118 - check differently whether gcc generates cfi instructions itself.
119
1206.0 Wed Jun 29 19:43:35 CEST 2011
121 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
122 destroyed and cleaned up automatically (e.g. async { schedule }).
123 - implement a JIT compiler for part of the thread switch code,
124 which gives a 50% speed improvement on threaded perls, and
125 about 4% on non-thraeded perls (so threaded perls now finally
126 reach about half the speed of non-threaded perls).
127 - slightly modernise Coro::Intro, add section about rouse functions.
128 - avoid DEFSV and ERRSV, giving another 10% improvement
129 in thread switching.
130 - Coro::State->is_destroyed is now called is_zombie.
131 - implement a Coro->safe_cancel method that might fail, but
132 cancels in a "safer" way if it succeeds.
133 - add preliminary support for DEBUGGING perls.
134 - get rid of two hash-accesses when initialising a new Coro - this
135 speeds up coro creation by almost a factor of two.
136 - croak when a coro that is being cancelled tries to block
137 (e.g. while executing a guard block), instead of crashing or
138 deadlocking.
139 - use a more robust and also faster method to identify Coro::State
140 objects - speeds up everything a bit.
141 - implement Coro->cancel in XS for a 20% speed improvement, and to
142 be able to implement mutual cancellation.
143 - speed up context switches by a percent or two by more efficiently
144 allocating context stack entries.
145 - implement Coro->join and Coro->on_destroy in XS for a speedup and
146 a reduction in memory use.
147 - cancelling a coro while it itself is cancelling another coro is
148 now supported and working, instead of triggering an assertion.
149 - be a bit more crash-resistant when calling (buggy) on_destroy
150 callbacks (best effort).
151 - move on_destroy into the slf_frame, to allow extension slf
152 functions to have destructors.
153 - get rid if coro refcounting - simply crash in other interpreter
154 threads by nulling the pointers on clone.
155 - simplify warn/die hook handling when loading Coro - the convoluted
156 logic seems to be no longer neccessary.
157 - use libecb instead of our own home-grown gcc hacks.
158 - document alternatives to Coro::LWP. Please use them :)
159 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
160 sigaltstack. Really. wine suffers from it, erlang suffers from it,
161 and it's known since at least 2006.
162
1635.372 Wed Feb 23 06:14:30 CET 2011
164 - apparently mingw doesn't provide a working gettimeofday, try to
165 work around that by relying on Time::HiRes (indirectly brought to
166 my attention by Max Maischein).
167 - fix some portability issues when Time::HiRes was used.
168
1695.371 Mon Feb 21 14:36:08 CET 2011
170 - backport to windows process emulation code again.
171
1725.37 Sat Feb 19 07:49:44 CET 2011
173 - add a big "Coro thread life cycle" section to "man Coro".
174 - try a tentative workaround against the breakage that 5.13 has
175 introduced without depreciation period. sigh.
176 - no longer use Time::HiRes if gettimeofday is available, which
177 saves quite a lot of memory.
178
1795.36 Sun Feb 13 05:33:41 CET 2011
180 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
181 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
182 method call.
183 - undocument Coro::Timer::sleep and obsolete whole module.
184 - optimise Coro::Timer::timeout memory and cpu usage.
185 - slightly updated Coro::Intro for recent changes.
186 - do not initialise PL_dirty anymore.
187
1885.25 Thu Nov 11 01:08:39 CET 2010
9 - try a different approach on netbsd - netbsd 5 finally has marginally 189 - try a different approach on netbsd - netbsd 5 finally has marginally
10 working pthreads, but still broken ucontext/sigaltstack. 190 working pthreads, but still broken ucontext/sigaltstack.
191 - openbsd 4.8 finally got their act together, Coro works out of the box
192 with asm, setjmp and pthreads (no change, just informational).
11 193
125.24 Sat Oct 23 11:27:12 CEST 2010 1945.24 Sat Oct 23 11:27:12 CEST 2010
13 - port to the EV 4.0 API. 195 - port to the EV 4.0 API.
14 - work around bugs in mingw32, making strawberry perl work 196 - work around bugs in mingw32, making strawberry perl work
15 out of the box. 197 out of the box.
… …
302 - ->throw is now supported on Coro::State objects. 484 - ->throw is now supported on Coro::State objects.
303 - clean up cctx creation code a bit. 485 - clean up cctx creation code a bit.
304 - entersub is actually a UNOP, not a LOGOP (not a bugfix). 486 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
305 487
3064.9 Sat Nov 8 17:45:27 CET 2008 4884.9 Sat Nov 8 17:45:27 CET 2008
307 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there). 489 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
308 - (libcoro) no longer leak threads in the experimental pthread backend, 490 - (libcoro) no longer leak threads in the experimental pthread backend,
309 also speed it up considerably. 491 also speed it up considerably.
310 - (libcoro) do not rely on makecontext passing void *'s unscathed. 492 - (libcoro) do not rely on makecontext passing void *'s unscathed.
311 - fix compiletime dependencies on libcoro in the Makefile. 493 - fix compiletime dependencies on libcoro in the Makefile.
312 - cctx_count wasn't always updated properly. 494 - cctx_count wasn't always updated properly.
… …
374 - remove debugging code related to MgPV_nolen_const, also try to 556 - remove debugging code related to MgPV_nolen_const, also try to
375 make it compile with perl 5.8.6 (yes, apple apparently loves 557 make it compile with perl 5.8.6 (yes, apple apparently loves
376 outdated software). Reported by John S. 558 outdated software). Reported by John S.
377 559
3784.744 Tue Jul 8 22:06:35 CEST 2008 5604.744 Tue Jul 8 22:06:35 CEST 2008
379 - correctly provide default DIE/WARN handlers as documented. 561 - correctly provide default DIE/WARN handlers as documented.
380 - also overwrite PL_vtbl_sigelem.svt_clear, even though current 562 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
381 implementations inside perl work fine for us. 563 implementations inside perl work fine for us.
382 564
3834.743 Mon Jun 16 00:21:57 CEST 2008 5654.743 Mon Jun 16 00:21:57 CEST 2008
384 - when using Coro::EV without running EV::loop it could 566 - when using Coro::EV without running EV::loop it could
… …
406 - sprinkle "no warnings" freely over everything, also suppress 588 - sprinkle "no warnings" freely over everything, also suppress
407 warnings for some other modules. 589 warnings for some other modules.
408 - fix typo in WSAEWOULDBLOCK. 590 - fix typo in WSAEWOULDBLOCK.
409 591
4104.72 Sun May 25 05:14:36 CEST 2008 5924.72 Sun May 25 05:14:36 CEST 2008
411 - tweak META.yaml a bit, unfortunately, there is no documented way 593 - tweak META.yaml a bit, unfortunately, there is no documented way
412 to have optional dependencies with CPAN. doh :( 594 to have optional dependencies with CPAN. doh :(
413 - avoid running some tests on windows because they would fail due to 595 - avoid running some tests on windows because they would fail due to
414 perl bug (broken fork, broken pipes...). 596 perl bug (broken fork, broken pipes...).
415 - work around perl on windows bugs where perl returns undocumented 597 - work around perl on windows bugs where perl returns undocumented
416 error codes for sysread, syswrite etc. by taking advantage 598 error codes for sysread, syswrite etc. by taking advantage
… …
420 - use unix domain sockets in testsuite to work around 602 - use unix domain sockets in testsuite to work around
421 common perl implementation bugs on widows (they are emulated by 603 common perl implementation bugs on widows (they are emulated by
422 tcp sockets on windows. ugh.) 604 tcp sockets on windows. ugh.)
423 605
4244.71 Sat May 24 20:01:27 CEST 2008 6064.71 Sat May 24 20:01:27 CEST 2008
425 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()"). 607 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
426 - take advantage of async name resolution of AnyEvent::Util. 608 - take advantage of async name resolution of AnyEvent::Util.
427 - work around brutal inet_aton override in Coro::LWP. 609 - work around brutal inet_aton override in Coro::LWP.
428 - take advantage of the readyhook in Coro::EV, for smoother 610 - take advantage of the readyhook in Coro::EV, for smoother
429 scheduling. 611 scheduling.
430 612
4314.7 Sun May 11 00:32:19 CEST 2008 6134.7 Sun May 11 00:32:19 CEST 2008
432 - completely reworked the Coro manpage. 614 - completely reworked the Coro manpage.
433 - added Coro::AnyEvent, generic event loop integration. 615 - added Coro::AnyEvent, generic event loop integration.
434 - implement cancel, ready and kill commands in Coro::Debug. 616 - implement cancel, ready and kill commands in Coro::Debug.
435 - document find_coro in Coro::Debug. 617 - document find_coro in Coro::Debug.
436 - incompatible change: rename has_stack to has_cctx. 618 - incompatible change: rename has_stack to has_cctx.
437 - Coro::AIO and Coro::BDB no longer force event model detection, 619 - Coro::AIO and Coro::BDB no longer force event model detection,
438 use AnyEvent::AIO and AnyEvent::BDB. 620 use AnyEvent::AIO and AnyEvent::BDB.
… …
562 744
5634.11 Thu Oct 11 02:40:24 CEST 2007 7454.11 Thu Oct 11 02:40:24 CEST 2007
564 - port to threaded perls. 746 - port to threaded perls.
565 747
5664.1 Thu Oct 11 02:38:16 CEST 2007 7484.1 Thu Oct 11 02:38:16 CEST 2007
567 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now 749 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
568 be local to each coro (see Coro::State). 750 be local to each coro (see Coro::State).
569 - incompatible change: for very deep reasons, cede and cede_notself 751 - incompatible change: for very deep reasons, cede and cede_notself
570 cannot return anything, so nothing will be returned. 752 cannot return anything, so nothing will be returned.
571 - possibly bring back 5.10 compatibility (untested). 753 - possibly bring back 5.10 compatibility (untested).
572 - work around stupid (and wrong) warning on 5.10 :(. 754 - work around stupid (and wrong) warning on 5.10 :(.
… …
644 but stateful semantics. 826 but stateful semantics.
645 - fixed a lot of typos in Coro.pm (patch submitted by David 827 - fixed a lot of typos in Coro.pm (patch submitted by David
646 Steinbrunner, which applied flawlessly). 828 Steinbrunner, which applied flawlessly).
647 829
6483.6 Sat Apr 14 17:13:31 CEST 2007 8303.6 Sat Apr 14 17:13:31 CEST 2007
649 - added some bugfixes to get eg/myhttpd working again. 831 - added some bugfixes to get eg/myhttpd working again.
650 - added Coro::Storable for often-cede'ing freeze/thaw. 832 - added Coro::Storable for often-cede'ing freeze/thaw.
651 - try to do a clean exit when a coroutine calls exit 833 - try to do a clean exit when a coroutine calls exit
652 (EXPERIMENTAL). 834 (EXPERIMENTAL).
653 - got rid of indirect call through _coro_init. 835 - got rid of indirect call through _coro_init.
654 - updated the partly antique examples in eg/ to 836 - updated the partly antique examples in eg/ to

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