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Comparing Coro/Changes (file contents):
Revision 1.536 by root, Wed Apr 14 01:57:34 2010 UTC vs.
Revision 1.625 by root, Tue Mar 4 05:07:44 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: 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
9Program terminated with signal 11, Segmentation fault.
10#0 coro_semaphore_adjust (av=0x0, adjust=0) at State.xs:2915
112915 State.xs: No such file or directory.
12(gdb) bt
13#0 coro_semaphore_adjust (av=0x0, adjust=0) at State.xs:2915
14#1 0x00007f638f0c0703 in slf_destroy (coro=0x5957180) at State.xs:2605
15#2 coro_state_destroy (coro=0x5957180) at State.xs:1712
16#3 0x00007f638f0c150c in coro_state_destroy (coro=<optimized out>) at State.xs:1709
17#4 XS_Coro__destroy (cv=<optimized out>) at State.xs:3853
18#5 0x00000000004b572d in Perl_pp_entersub () at pp_hot.c:2881
19#6 0x00000000004adfe3 in Perl_runops_standard () at run.c:42
20#7 0x000000000044335f in S_run_body (oldscope=<optimized out>) at perl.c:2462
21#8 perl_run (my_perl=<optimized out>) at perl.c:2383
22#9 0x00007f638f0ba3a1 in cctx_run (arg=<optimized out>) at State.xs:1478
23#10 0x00007f638f0b74d5 in coro_init () at libcoro/coro.c:96
24(gdb) up
25#1 0x00007f638f0c0703 in slf_destroy (coro=0x5957180) at State.xs:2605
262605 in State.xs
27(gdb) p coro->slf_frame
28$1 = {
29 prepare = 0x7f638f0baf60 <prepare_schedule>,
30 check = 0x7f638f0b6e70 <slf_check_repeat>,
31 data = 0x0,
32 destroy = 0x7f638f0bb820 <coro_semaphore_destroy>
33
34
35TODO: warnhook reports from wrong line number now, when arg is Math::GMP number.
36 - FATAL: $Coro::IDLE blocked itself will now use Carp::confess
37 to report a full stacktrace, which should help find out
38 where the actual call is.
39 - "atomically" destroy data in slf_destroy, because it is
40 the right thing to do, just in case.
41 - disable ecb.h libm dependency, to compile on ancient systems
42 or under adverse conditions.
43
446.33 Mon Nov 18 11:26:27 CET 2013
45 - do not crash when freeing padlists with holes (in 5.18).
46 - tentative SVt_BIND 5.19 port/fix.
47
486.32 Tue Nov 5 15:35:35 CET 2013
49 - use a new algorithm to derive padlists for perl 5.18. The old
50 one could lead to 0-pointer accesses inside perl (reported
51 by Darin McBride).
52
536.31 Thu May 9 07:39:48 CEST 2013
54 - Coro::AIO requests would crash if the thread was ready'd
55 while the request was ongoing.
56
576.29 Wed May 8 02:55:18 CEST 2013
58 - when an on_destroy handler destructs the coro currently being
59 destructed a perl scalar could be accessed after being freed,
60 likely causing a crash.
61
626.28 Wed Mar 6 06:58:02 CET 2013
63 - clean remnants of existing __DIE__ and __WARN__ handlers so
64 they lose their magic and will not cause segfaults later
65 (testcase by Andrey Sagulin).
66 - improved Coro::State documentation a bit.
67 - Coro::Debug::command now flushes the output.
68 - add hack detection code for x32 abi, because the braindead slugs
69 who designed that made it look exactly like x86_64 without
70 providing proper compile time symbols to test for it. as a result,
71 this detection cannot work reliably.
72 - valgrind stack registering was broken.
73 - do not rely on Time::HiRes anymore in Coro::Debug.
74
756.23 Fri Dec 7 23:36:37 CET 2012
76 - use experimental fiber implementation on native windows
77 perls.
78 - use sizeof (void *) as multiplication factor for stack sizes,
79 to accomodate the totally braindamaged microsoft 64 bit "os".
80 - changed verifier host from win2k-ap510-32 to win7-sp516-32/64.
81 activeperl 5.16 crashes when PerlIO_define_layer is called due
82 to some bug in the perl dll, strawberry perl at least passes
83 the testsuite.
84 - implement Coro::Handle->peeraddr/host/port, for slightly
85 improved compatibility with LWP.
86 - implement 5.17 compatibility by almost blindly applying a
87 good-looking patch by Father Chrysostomos.
88 - move stack management functions into libcoro 3.
89 - libcoro version 3 "released".
90 - support magic values as timed_io_once args.
91 - recommend AnyEvent 7+ or EV 4+, also require EV
92 version 4 or newer for Coro::EV.
93
946.10 Tue Oct 9 01:14:27 CEST 2012
95 - updated ecb.h, it had a typo that caused it to not compile on many
96 big endian systems (reported by many people).
97 - disable memory fences in ecb.h to improve portability.
98
996.09 Sat Oct 6 23:25:02 CEST 2012
100 - Coro::EV I/O watchers were not interruptible by exceptions
101 (Coro::State::throw) (testcase by sten).
102 - ->throw now puts threads into the ready queue, as this seems to
103 be expected by existing code, and code that doesn't cope with spurious
104 wakeups needs fixing anyway.
105 - use fd -1 in mmap.
106 - cast I32 to int in error message printf.
107 - warn about broken so-called "hardened" kernels.
108
1096.08 Fri Apr 13 12:05:47 CEST 2012
110 - be more aggressive about exiting like perl does - formerly,
111 exiting from the non-main thread would not execute END blocks.
112
1136.07 Fri Nov 11 21:21:48 CET 2011
114 - work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV).
115 - update ecb.h.
116
1176.06 Mon Aug 8 23:59:48 CEST 2011
118 - cygwin unfortunately patches the stack at runtime, so we use the pthreads
119 backend, which is an order of magnitude slower. unfortunately, cygwins
120 pthread implementation isn't very complete either, so allocate the stack
121 twice just to be sure.
122 (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS,
123 in its ithreaded perl - best recompile cygwin and use the 'w'indows
124 backend for much better performance. also disable ithreads for
125 even better performance...).
126
1276.05 Thu Aug 4 21:36:36 CEST 2011
128 - blush, condvar values would not be propagated from send to recv anymore
129 (reported by Chip Salzenberg).
130 - use exponential increase for the readline buffer length in
131 Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes.
132
1336.04 Wed Aug 3 17:15:45 CEST 2011
134 - use even more efficient and more compatible condvars for
135 compatibility to AnyEvent 6.x :)
136 - more inconsequential ecb.h updates.
137
1386.03 Wed Aug 3 11:41:30 CEST 2011
139 - change how Coro patches AnyEvent condvars for compatibility to
140 AnyEvent 6.x.
141 - update ecb.h, to no longer include <pthread.h> in case WinNT.h
142 hasn't been included.
143
1446.02 Wed Jul 13 04:35:19 CEST 2011
145 - "improve portability to Gentoo" - gentoo manages to put perl variables
146 in memory areas that are farther than 2gb apart, which the jit couldn't
147 handle and barfed. now it's just a bit slower on gentoo and similar
148 systems.
149
1506.01 Sun Jul 3 12:31:14 CEST 2011
151 - workarounds are good, but the test for whether pthreads are used
152 was not good. thisone should be better.
153 - check differently whether gcc generates cfi instructions itself.
154
1556.0 Wed Jun 29 19:43:35 CEST 2011
156 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
157 destroyed and cleaned up automatically (e.g. async { schedule }).
158 - implement a JIT compiler for part of the thread switch code,
159 which gives a 50% speed improvement on threaded perls, and
160 about 4% on non-thraeded perls (so threaded perls now finally
161 reach about half the speed of non-threaded perls).
162 - slightly modernise Coro::Intro, add section about rouse functions.
163 - avoid DEFSV and ERRSV, giving another 10% improvement
164 in thread switching.
165 - Coro::State->is_destroyed is now called is_zombie.
166 - implement a Coro->safe_cancel method that might fail, but
167 cancels in a "safer" way if it succeeds.
168 - add preliminary support for DEBUGGING perls.
169 - get rid of two hash-accesses when initialising a new Coro - this
170 speeds up coro creation by almost a factor of two.
171 - croak when a coro that is being cancelled tries to block
172 (e.g. while executing a guard block), instead of crashing or
173 deadlocking.
174 - use a more robust and also faster method to identify Coro::State
175 objects - speeds up everything a bit.
176 - implement Coro->cancel in XS for a 20% speed improvement, and to
177 be able to implement mutual cancellation.
178 - speed up context switches by a percent or two by more efficiently
179 allocating context stack entries.
180 - implement Coro->join and Coro->on_destroy in XS for a speedup and
181 a reduction in memory use.
182 - cancelling a coro while it itself is cancelling another coro is
183 now supported and working, instead of triggering an assertion.
184 - be a bit more crash-resistant when calling (buggy) on_destroy
185 callbacks (best effort).
186 - move on_destroy into the slf_frame, to allow extension slf
187 functions to have destructors.
188 - get rid if coro refcounting - simply crash in other interpreter
189 threads by nulling the pointers on clone.
190 - simplify warn/die hook handling when loading Coro - the convoluted
191 logic seems to be no longer neccessary.
192 - use libecb instead of our own home-grown gcc hacks.
193 - document alternatives to Coro::LWP. Please use them :)
194 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
195 sigaltstack. Really. wine suffers from it, erlang suffers from it,
196 and it's known since at least 2006.
197
1985.372 Wed Feb 23 06:14:30 CET 2011
199 - apparently mingw doesn't provide a working gettimeofday, try to
200 work around that by relying on Time::HiRes (indirectly brought to
201 my attention by Max Maischein).
202 - fix some portability issues when Time::HiRes was used.
203
2045.371 Mon Feb 21 14:36:08 CET 2011
205 - backport to windows process emulation code again.
206
2075.37 Sat Feb 19 07:49:44 CET 2011
208 - add a big "Coro thread life cycle" section to "man Coro".
209 - try a tentative workaround against the breakage that 5.13 has
210 introduced without depreciation period. sigh.
211 - no longer use Time::HiRes if gettimeofday is available, which
212 saves quite a lot of memory.
213
2145.36 Sun Feb 13 05:33:41 CET 2011
215 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
216 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
217 method call.
218 - undocument Coro::Timer::sleep and obsolete whole module.
219 - optimise Coro::Timer::timeout memory and cpu usage.
220 - slightly updated Coro::Intro for recent changes.
221 - do not initialise PL_dirty anymore.
222
2235.25 Thu Nov 11 01:08:39 CET 2010
224 - try a different approach on netbsd - netbsd 5 finally has marginally
225 working pthreads, but still broken ucontext/sigaltstack.
226 - openbsd 4.8 finally got their act together, Coro works out of the box
227 with asm, setjmp and pthreads (no change, just informational).
228
2295.24 Sat Oct 23 11:27:12 CEST 2010
230 - port to the EV 4.0 API.
231 - work around bugs in mingw32, making strawberry perl work
232 out of the box.
233 - correctly modify Coro::AIO function prototypes
234 so that they reflect the "no optional parameters" rule.
235 - "ported" libcoro to C++.
236
2375.23 Mon May 17 18:50:42 CEST 2010
238 - be more resistant to ordering changes when initialising
239 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
240 Waldorf).
9 - document that perl 5.12 deliberately removed support for cloning. 241 - document that perl 5.12 deliberately removed support for cloning.
10 242
115.22 Wed Apr 14 03:55:35 CEST 2010 2435.22 Wed Apr 14 03:55:35 CEST 2010
12 - correctly return udnef on errors in Coro::Handle::read/write 244 - correctly return udnef on errors in Coro::Handle::read/write
13 (testcase by Marc Wims). 245 (testcase by Marc Mims).
14 - convert Coro::Util into a "perl compatibility wrapper" - the functions 246 - convert Coro::Util into a "perl compatibility wrapper" - the functions
15 are less useful now, but are drop-in replacements for existing 247 are less useful now, but are drop-in replacements for existing
16 functions, listing better alternatives in the documentation. This also 248 functions, listing better alternatives in the documentation. This also
17 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton 249 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
18 with Coro::Util::inet_aton. 250 with Coro::Util::inet_aton.
… …
287 - ->throw is now supported on Coro::State objects. 519 - ->throw is now supported on Coro::State objects.
288 - clean up cctx creation code a bit. 520 - clean up cctx creation code a bit.
289 - entersub is actually a UNOP, not a LOGOP (not a bugfix). 521 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
290 522
2914.9 Sat Nov 8 17:45:27 CET 2008 5234.9 Sat Nov 8 17:45:27 CET 2008
292 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there). 524 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
293 - (libcoro) no longer leak threads in the experimental pthread backend, 525 - (libcoro) no longer leak threads in the experimental pthread backend,
294 also speed it up considerably. 526 also speed it up considerably.
295 - (libcoro) do not rely on makecontext passing void *'s unscathed. 527 - (libcoro) do not rely on makecontext passing void *'s unscathed.
296 - fix compiletime dependencies on libcoro in the Makefile. 528 - fix compiletime dependencies on libcoro in the Makefile.
297 - cctx_count wasn't always updated properly. 529 - cctx_count wasn't always updated properly.
… …
359 - remove debugging code related to MgPV_nolen_const, also try to 591 - remove debugging code related to MgPV_nolen_const, also try to
360 make it compile with perl 5.8.6 (yes, apple apparently loves 592 make it compile with perl 5.8.6 (yes, apple apparently loves
361 outdated software). Reported by John S. 593 outdated software). Reported by John S.
362 594
3634.744 Tue Jul 8 22:06:35 CEST 2008 5954.744 Tue Jul 8 22:06:35 CEST 2008
364 - correctly provide default DIE/WARN handlers as documented. 596 - correctly provide default DIE/WARN handlers as documented.
365 - also overwrite PL_vtbl_sigelem.svt_clear, even though current 597 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
366 implementations inside perl work fine for us. 598 implementations inside perl work fine for us.
367 599
3684.743 Mon Jun 16 00:21:57 CEST 2008 6004.743 Mon Jun 16 00:21:57 CEST 2008
369 - when using Coro::EV without running EV::loop it could 601 - when using Coro::EV without running EV::loop it could
… …
391 - sprinkle "no warnings" freely over everything, also suppress 623 - sprinkle "no warnings" freely over everything, also suppress
392 warnings for some other modules. 624 warnings for some other modules.
393 - fix typo in WSAEWOULDBLOCK. 625 - fix typo in WSAEWOULDBLOCK.
394 626
3954.72 Sun May 25 05:14:36 CEST 2008 6274.72 Sun May 25 05:14:36 CEST 2008
396 - tweak META.yaml a bit, unfortunately, there is no documented way 628 - tweak META.yaml a bit, unfortunately, there is no documented way
397 to have optional dependencies with CPAN. doh :( 629 to have optional dependencies with CPAN. doh :(
398 - avoid running some tests on windows because they would fail due to 630 - avoid running some tests on windows because they would fail due to
399 perl bug (broken fork, broken pipes...). 631 perl bug (broken fork, broken pipes...).
400 - work around perl on windows bugs where perl returns undocumented 632 - work around perl on windows bugs where perl returns undocumented
401 error codes for sysread, syswrite etc. by taking advantage 633 error codes for sysread, syswrite etc. by taking advantage
… …
405 - use unix domain sockets in testsuite to work around 637 - use unix domain sockets in testsuite to work around
406 common perl implementation bugs on widows (they are emulated by 638 common perl implementation bugs on widows (they are emulated by
407 tcp sockets on windows. ugh.) 639 tcp sockets on windows. ugh.)
408 640
4094.71 Sat May 24 20:01:27 CEST 2008 6414.71 Sat May 24 20:01:27 CEST 2008
410 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()"). 642 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
411 - take advantage of async name resolution of AnyEvent::Util. 643 - take advantage of async name resolution of AnyEvent::Util.
412 - work around brutal inet_aton override in Coro::LWP. 644 - work around brutal inet_aton override in Coro::LWP.
413 - take advantage of the readyhook in Coro::EV, for smoother 645 - take advantage of the readyhook in Coro::EV, for smoother
414 scheduling. 646 scheduling.
415 647
4164.7 Sun May 11 00:32:19 CEST 2008 6484.7 Sun May 11 00:32:19 CEST 2008
417 - completely reworked the Coro manpage. 649 - completely reworked the Coro manpage.
418 - added Coro::AnyEvent, generic event loop integration. 650 - added Coro::AnyEvent, generic event loop integration.
419 - implement cancel, ready and kill commands in Coro::Debug. 651 - implement cancel, ready and kill commands in Coro::Debug.
420 - document find_coro in Coro::Debug. 652 - document find_coro in Coro::Debug.
421 - incompatible change: rename has_stack to has_cctx. 653 - incompatible change: rename has_stack to has_cctx.
422 - Coro::AIO and Coro::BDB no longer force event model detection, 654 - Coro::AIO and Coro::BDB no longer force event model detection,
423 use AnyEvent::AIO and AnyEvent::BDB. 655 use AnyEvent::AIO and AnyEvent::BDB.
… …
547 779
5484.11 Thu Oct 11 02:40:24 CEST 2007 7804.11 Thu Oct 11 02:40:24 CEST 2007
549 - port to threaded perls. 781 - port to threaded perls.
550 782
5514.1 Thu Oct 11 02:38:16 CEST 2007 7834.1 Thu Oct 11 02:38:16 CEST 2007
552 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now 784 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
553 be local to each coro (see Coro::State). 785 be local to each coro (see Coro::State).
554 - incompatible change: for very deep reasons, cede and cede_notself 786 - incompatible change: for very deep reasons, cede and cede_notself
555 cannot return anything, so nothing will be returned. 787 cannot return anything, so nothing will be returned.
556 - possibly bring back 5.10 compatibility (untested). 788 - possibly bring back 5.10 compatibility (untested).
557 - work around stupid (and wrong) warning on 5.10 :(. 789 - work around stupid (and wrong) warning on 5.10 :(.
… …
629 but stateful semantics. 861 but stateful semantics.
630 - fixed a lot of typos in Coro.pm (patch submitted by David 862 - fixed a lot of typos in Coro.pm (patch submitted by David
631 Steinbrunner, which applied flawlessly). 863 Steinbrunner, which applied flawlessly).
632 864
6333.6 Sat Apr 14 17:13:31 CEST 2007 8653.6 Sat Apr 14 17:13:31 CEST 2007
634 - added some bugfixes to get eg/myhttpd working again. 866 - added some bugfixes to get eg/myhttpd working again.
635 - added Coro::Storable for often-cede'ing freeze/thaw. 867 - added Coro::Storable for often-cede'ing freeze/thaw.
636 - try to do a clean exit when a coroutine calls exit 868 - try to do a clean exit when a coroutine calls exit
637 (EXPERIMENTAL). 869 (EXPERIMENTAL).
638 - got rid of indirect call through _coro_init. 870 - got rid of indirect call through _coro_init.
639 - updated the partly antique examples in eg/ to 871 - updated the partly antique examples in eg/ to

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