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Comparing Coro/Changes (file contents):
Revision 1.521 by root, Sat Aug 22 22:36:23 2009 UTC vs.
Revision 1.633 by root, Mon Jun 2 18:32:31 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?
9
10 - restore portability to perl 5.8.x.
11
126.39 Mon Jun 2 00:00:08 CEST 2014
13 - work around more incompatible changes in 5.20.
14
156.38 Sun Jun 1 21:54:23 CEST 2014
16 - check that perl slots actually have enough space to hold
17 interpreter variables.
18 - untested port to perl 5.19 (64 bit tmps indices) (reported
19 by Andreas König).
20 - croak when cancel is called without a thread context.
21
226.37 Tue Mar 4 13:27:33 CET 2014
23 - *sigh*, removed leftover debugging code from debugging a
24 perl bug, of all things.
25
266.36 Tue Mar 4 07:11:59 CET 2014
27 - semaphores would not clear the destroy hook when interrupted
28 by ->throw, causing segfaults or worse.
29 - ->throw on a thread waiting for a semaphore did not acquire
30 the semaphore, but also didn't wake up other waiters,
31 possibly causing a deadlock.
32 - "FATAL: $Coro::IDLE blocked itself" will now use Carp::confess
33 to report a full stacktrace, which should help find out
34 where the actual call is.
35 - "atomically" destroy data in slf_destroy, because it is
36 the right thing to do, just in case.
37 - disable ecb.h libm dependency, to compile on ancient systems
38 or under adverse conditions.
39
406.33 Mon Nov 18 11:26:27 CET 2013
41 - do not crash when freeing padlists with holes (in 5.18).
42 - tentative SVt_BIND 5.19 port/fix.
43
446.32 Tue Nov 5 15:35:35 CET 2013
45 - use a new algorithm to derive padlists for perl 5.18. The old
46 one could lead to 0-pointer accesses inside perl (reported
47 by Darin McBride).
48
496.31 Thu May 9 07:39:48 CEST 2013
50 - Coro::AIO requests would crash if the thread was ready'd
51 while the request was ongoing.
52
536.29 Wed May 8 02:55:18 CEST 2013
54 - when an on_destroy handler destructs the coro currently being
55 destructed a perl scalar could be accessed after being freed,
56 likely causing a crash.
57
586.28 Wed Mar 6 06:58:02 CET 2013
59 - clean remnants of existing __DIE__ and __WARN__ handlers so
60 they lose their magic and will not cause segfaults later
61 (testcase by Andrey Sagulin).
62 - improved Coro::State documentation a bit.
63 - Coro::Debug::command now flushes the output.
64 - add hack detection code for x32 abi, because the braindead slugs
65 who designed that made it look exactly like x86_64 without
66 providing proper compile time symbols to test for it. as a result,
67 this detection cannot work reliably.
68 - valgrind stack registering was broken.
69 - do not rely on Time::HiRes anymore in Coro::Debug.
70
716.23 Fri Dec 7 23:36:37 CET 2012
72 - use experimental fiber implementation on native windows
73 perls.
74 - use sizeof (void *) as multiplication factor for stack sizes,
75 to accomodate the totally braindamaged microsoft 64 bit "os".
76 - changed verifier host from win2k-ap510-32 to win7-sp516-32/64.
77 activeperl 5.16 crashes when PerlIO_define_layer is called due
78 to some bug in the perl dll, strawberry perl at least passes
79 the testsuite.
80 - implement Coro::Handle->peeraddr/host/port, for slightly
81 improved compatibility with LWP.
82 - implement 5.17 compatibility by almost blindly applying a
83 good-looking patch by Father Chrysostomos.
84 - move stack management functions into libcoro 3.
85 - libcoro version 3 "released".
86 - support magic values as timed_io_once args.
87 - recommend AnyEvent 7+ or EV 4+, also require EV
88 version 4 or newer for Coro::EV.
89
906.10 Tue Oct 9 01:14:27 CEST 2012
91 - updated ecb.h, it had a typo that caused it to not compile on many
92 big endian systems (reported by many people).
93 - disable memory fences in ecb.h to improve portability.
94
956.09 Sat Oct 6 23:25:02 CEST 2012
96 - Coro::EV I/O watchers were not interruptible by exceptions
97 (Coro::State::throw) (testcase by sten).
98 - ->throw now puts threads into the ready queue, as this seems to
99 be expected by existing code, and code that doesn't cope with spurious
100 wakeups needs fixing anyway.
101 - use fd -1 in mmap.
102 - cast I32 to int in error message printf.
103 - warn about broken so-called "hardened" kernels.
104
1056.08 Fri Apr 13 12:05:47 CEST 2012
106 - be more aggressive about exiting like perl does - formerly,
107 exiting from the non-main thread would not execute END blocks.
108
1096.07 Fri Nov 11 21:21:48 CET 2011
110 - work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV).
111 - update ecb.h.
112
1136.06 Mon Aug 8 23:59:48 CEST 2011
114 - cygwin unfortunately patches the stack at runtime, so we use the pthreads
115 backend, which is an order of magnitude slower. unfortunately, cygwins
116 pthread implementation isn't very complete either, so allocate the stack
117 twice just to be sure.
118 (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS,
119 in its ithreaded perl - best recompile cygwin and use the 'w'indows
120 backend for much better performance. also disable ithreads for
121 even better performance...).
122
1236.05 Thu Aug 4 21:36:36 CEST 2011
124 - blush, condvar values would not be propagated from send to recv anymore
125 (reported by Chip Salzenberg).
126 - use exponential increase for the readline buffer length in
127 Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes.
128
1296.04 Wed Aug 3 17:15:45 CEST 2011
130 - use even more efficient and more compatible condvars for
131 compatibility to AnyEvent 6.x :)
132 - more inconsequential ecb.h updates.
133
1346.03 Wed Aug 3 11:41:30 CEST 2011
135 - change how Coro patches AnyEvent condvars for compatibility to
136 AnyEvent 6.x.
137 - update ecb.h, to no longer include <pthread.h> in case WinNT.h
138 hasn't been included.
139
1406.02 Wed Jul 13 04:35:19 CEST 2011
141 - "improve portability to Gentoo" - gentoo manages to put perl variables
142 in memory areas that are farther than 2gb apart, which the jit couldn't
143 handle and barfed. now it's just a bit slower on gentoo and similar
144 systems.
145
1466.01 Sun Jul 3 12:31:14 CEST 2011
147 - workarounds are good, but the test for whether pthreads are used
148 was not good. this one should be better.
149 - check differently whether gcc generates cfi instructions itself.
150
1516.0 Wed Jun 29 19:43:35 CEST 2011
152 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
153 destroyed and cleaned up automatically (e.g. async { schedule }).
154 - implement a JIT compiler for part of the thread switch code,
155 which gives a 50% speed improvement on threaded perls, and
156 about 4% on non-threaded perls (so threaded perls now finally
157 reach about half the speed of non-threaded perls).
158 - slightly modernise Coro::Intro, add section about rouse functions.
159 - avoid DEFSV and ERRSV, giving another 10% improvement
160 in thread switching.
161 - Coro::State->is_destroyed is now called is_zombie.
162 - implement a Coro->safe_cancel method that might fail, but
163 cancels in a "safer" way if it succeeds.
164 - add preliminary support for DEBUGGING perls.
165 - get rid of two hash-accesses when initialising a new Coro - this
166 speeds up coro creation by almost a factor of two.
167 - croak when a coro that is being cancelled tries to block
168 (e.g. while executing a guard block), instead of crashing or
169 deadlocking.
170 - use a more robust and also faster method to identify Coro::State
171 objects - speeds up everything a bit.
172 - implement Coro->cancel in XS for a 20% speed improvement, and to
173 be able to implement mutual cancellation.
174 - speed up context switches by a percent or two by more efficiently
175 allocating context stack entries.
176 - implement Coro->join and Coro->on_destroy in XS for a speedup and
177 a reduction in memory use.
178 - cancelling a coro while it itself is cancelling another coro is
179 now supported and working, instead of triggering an assertion.
180 - be a bit more crash-resistant when calling (buggy) on_destroy
181 callbacks (best effort).
182 - move on_destroy into the slf_frame, to allow extension slf
183 functions to have destructors.
184 - get rid if coro refcounting - simply crash in other interpreter
185 threads by nulling the pointers on clone.
186 - simplify warn/die hook handling when loading Coro - the convoluted
187 logic seems to be no longer neccessary.
188 - use libecb instead of our own home-grown gcc hacks.
189 - document alternatives to Coro::LWP. Please use them :)
190 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
191 sigaltstack. Really. wine suffers from it, erlang suffers from it,
192 and it's known since at least 2006.
193
1945.372 Wed Feb 23 06:14:30 CET 2011
195 - apparently mingw doesn't provide a working gettimeofday, try to
196 work around that by relying on Time::HiRes (indirectly brought to
197 my attention by Max Maischein).
198 - fix some portability issues when Time::HiRes was used.
199
2005.371 Mon Feb 21 14:36:08 CET 2011
201 - backport to windows process emulation code again.
202
2035.37 Sat Feb 19 07:49:44 CET 2011
204 - add a big "Coro thread life cycle" section to "man Coro".
205 - try a tentative workaround against the breakage that 5.13 has
206 introduced without depreciation period. sigh.
207 - no longer use Time::HiRes if gettimeofday is available, which
208 saves quite a lot of memory.
209
2105.36 Sun Feb 13 05:33:41 CET 2011
211 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
212 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
213 method call.
214 - undocument Coro::Timer::sleep and obsolete whole module.
215 - optimise Coro::Timer::timeout memory and cpu usage.
216 - slightly updated Coro::Intro for recent changes.
217 - do not initialise PL_dirty anymore.
218
2195.25 Thu Nov 11 01:08:39 CET 2010
220 - try a different approach on netbsd - netbsd 5 finally has marginally
221 working pthreads, but still broken ucontext/sigaltstack.
222 - openbsd 4.8 finally got their act together, Coro works out of the box
223 with asm, setjmp and pthreads (no change, just informational).
224
2255.24 Sat Oct 23 11:27:12 CEST 2010
226 - port to the EV 4.0 API.
227 - work around bugs in mingw32, making strawberry perl work
228 out of the box.
229 - correctly modify Coro::AIO function prototypes
230 so that they reflect the "no optional parameters" rule.
231 - "ported" libcoro to C++.
232
2335.23 Mon May 17 18:50:42 CEST 2010
234 - be more resistant to ordering changes when initialising
235 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
236 Waldorf).
237 - document that perl 5.12 deliberately removed support for cloning.
238
2395.22 Wed Apr 14 03:55:35 CEST 2010
240 - correctly return udnef on errors in Coro::Handle::read/write
241 (testcase by Marc Mims).
242 - convert Coro::Util into a "perl compatibility wrapper" - the functions
243 are less useful now, but are drop-in replacements for existing
244 functions, listing better alternatives in the documentation. This also
245 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
246 with Coro::Util::inet_aton.
247 - do not override $Coro::idle unconditionally in Coro.pm, as other
248 modules could have provided their own idle coro already
249 (for exmaple, Coro::AnyEvent).
250 - fix Coro::Util::gethost* functions.
251 - Coro::Timer corretcly exports it's symbols (reported by Hideki Yamamura).
252
2535.21 Wed Dec 16 07:19:51 CET 2009
254 - automatically load Coro::AnyEvent when AnyEvent and Coro are used
255 together.
256 - add some examples on how to combine other event loops with Coro in
257 Coro::AnyEvent, and how to run it (and not to block). Seems to be
258 the most common source of confusion.
259 - try to catch people naively blocking in an event callback.
260 - work around the perl filehandle bug issue in conjunction with
261 older common::sense (as indirectly pointed out by ZSystem).
262 - clarify the "not from signal handlers" section.
263
2645.2 Sun Oct 4 14:54:24 CEST 2009
265 - Coro::Storable destroyed the prototypes of the functions it wrapped.
266 - export rouse_cb and rouse_wait by default now.
267 - fix various prototype mismatches in Coro::AnyEvent and Coro::Handle.
268 - new method $state->swap_sv.
269 - added section on "windows process emulation" to the manpage,
270 after a not-so-fruitful (nor-friendly) "discussion" with chip
271 salzenberg (discussion implies arguments, but his only arguments
272 were ad-hominems, one wonders why he started it in the first
273 place). I hope this explains it well enough for him to understand,
274 and maybe well enough for others to understand.
275 - use common::sense everywhere now.
276 - idle callbacks are no longer supported, use idle coros instead.
277 - print a thread listing when a deadlock is detected.
10 278
115.17 Sat Aug 22 23:09:31 CEST 2009 2795.17 Sat Aug 22 23:09:31 CEST 2009
12 - work around a bug in the perl debugger causing crashes 280 - work around a bug in the perl debugger causing crashes
13 when running under the debugger by marking _pool_handler as nodebug. 281 when running under the debugger by marking _pool_handler as nodebug.
14 - speed up Coro::async considerably. 282 - speed up Coro::async considerably.
… …
247 - ->throw is now supported on Coro::State objects. 515 - ->throw is now supported on Coro::State objects.
248 - clean up cctx creation code a bit. 516 - clean up cctx creation code a bit.
249 - entersub is actually a UNOP, not a LOGOP (not a bugfix). 517 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
250 518
2514.9 Sat Nov 8 17:45:27 CET 2008 5194.9 Sat Nov 8 17:45:27 CET 2008
252 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there). 520 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
253 - (libcoro) no longer leak threads in the experimental pthread backend, 521 - (libcoro) no longer leak threads in the experimental pthread backend,
254 also speed it up considerably. 522 also speed it up considerably.
255 - (libcoro) do not rely on makecontext passing void *'s unscathed. 523 - (libcoro) do not rely on makecontext passing void *'s unscathed.
256 - fix compiletime dependencies on libcoro in the Makefile. 524 - fix compiletime dependencies on libcoro in the Makefile.
257 - cctx_count wasn't always updated properly. 525 - cctx_count wasn't always updated properly.
… …
319 - remove debugging code related to MgPV_nolen_const, also try to 587 - remove debugging code related to MgPV_nolen_const, also try to
320 make it compile with perl 5.8.6 (yes, apple apparently loves 588 make it compile with perl 5.8.6 (yes, apple apparently loves
321 outdated software). Reported by John S. 589 outdated software). Reported by John S.
322 590
3234.744 Tue Jul 8 22:06:35 CEST 2008 5914.744 Tue Jul 8 22:06:35 CEST 2008
324 - correctly provide default DIE/WARN handlers as documented. 592 - correctly provide default DIE/WARN handlers as documented.
325 - also overwrite PL_vtbl_sigelem.svt_clear, even though current 593 - also overwrite PL_vtbl_sigelem.svt_clear, even though current
326 implementations inside perl work fine for us. 594 implementations inside perl work fine for us.
327 595
3284.743 Mon Jun 16 00:21:57 CEST 2008 5964.743 Mon Jun 16 00:21:57 CEST 2008
329 - when using Coro::EV without running EV::loop it could 597 - when using Coro::EV without running EV::loop it could
… …
351 - sprinkle "no warnings" freely over everything, also suppress 619 - sprinkle "no warnings" freely over everything, also suppress
352 warnings for some other modules. 620 warnings for some other modules.
353 - fix typo in WSAEWOULDBLOCK. 621 - fix typo in WSAEWOULDBLOCK.
354 622
3554.72 Sun May 25 05:14:36 CEST 2008 6234.72 Sun May 25 05:14:36 CEST 2008
356 - tweak META.yaml a bit, unfortunately, there is no documented way 624 - tweak META.yaml a bit, unfortunately, there is no documented way
357 to have optional dependencies with CPAN. doh :( 625 to have optional dependencies with CPAN. doh :(
358 - avoid running some tests on windows because they would fail due to 626 - avoid running some tests on windows because they would fail due to
359 perl bug (broken fork, broken pipes...). 627 perl bug (broken fork, broken pipes...).
360 - work around perl on windows bugs where perl returns undocumented 628 - work around perl on windows bugs where perl returns undocumented
361 error codes for sysread, syswrite etc. by taking advantage 629 error codes for sysread, syswrite etc. by taking advantage
… …
365 - use unix domain sockets in testsuite to work around 633 - use unix domain sockets in testsuite to work around
366 common perl implementation bugs on widows (they are emulated by 634 common perl implementation bugs on widows (they are emulated by
367 tcp sockets on windows. ugh.) 635 tcp sockets on windows. ugh.)
368 636
3694.71 Sat May 24 20:01:27 CEST 2008 6374.71 Sat May 24 20:01:27 CEST 2008
370 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()"). 638 - fix a bug in Coro::AnyEvent ("Usage: Coro::AnyEvent::_schedule()").
371 - take advantage of async name resolution of AnyEvent::Util. 639 - take advantage of async name resolution of AnyEvent::Util.
372 - work around brutal inet_aton override in Coro::LWP. 640 - work around brutal inet_aton override in Coro::LWP.
373 - take advantage of the readyhook in Coro::EV, for smoother 641 - take advantage of the readyhook in Coro::EV, for smoother
374 scheduling. 642 scheduling.
375 643
3764.7 Sun May 11 00:32:19 CEST 2008 6444.7 Sun May 11 00:32:19 CEST 2008
377 - completely reworked the Coro manpage. 645 - completely reworked the Coro manpage.
378 - added Coro::AnyEvent, generic event loop integration. 646 - added Coro::AnyEvent, generic event loop integration.
379 - implement cancel, ready and kill commands in Coro::Debug. 647 - implement cancel, ready and kill commands in Coro::Debug.
380 - document find_coro in Coro::Debug. 648 - document find_coro in Coro::Debug.
381 - incompatible change: rename has_stack to has_cctx. 649 - incompatible change: rename has_stack to has_cctx.
382 - Coro::AIO and Coro::BDB no longer force event model detection, 650 - Coro::AIO and Coro::BDB no longer force event model detection,
383 use AnyEvent::AIO and AnyEvent::BDB. 651 use AnyEvent::AIO and AnyEvent::BDB.
… …
507 775
5084.11 Thu Oct 11 02:40:24 CEST 2007 7764.11 Thu Oct 11 02:40:24 CEST 2007
509 - port to threaded perls. 777 - port to threaded perls.
510 778
5114.1 Thu Oct 11 02:38:16 CEST 2007 7794.1 Thu Oct 11 02:38:16 CEST 2007
512 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now 780 - incompatible change: $SIG{__DIE__} and $SIG{__WARN__} will now
513 be local to each coro (see Coro::State). 781 be local to each coro (see Coro::State).
514 - incompatible change: for very deep reasons, cede and cede_notself 782 - incompatible change: for very deep reasons, cede and cede_notself
515 cannot return anything, so nothing will be returned. 783 cannot return anything, so nothing will be returned.
516 - possibly bring back 5.10 compatibility (untested). 784 - possibly bring back 5.10 compatibility (untested).
517 - work around stupid (and wrong) warning on 5.10 :(. 785 - work around stupid (and wrong) warning on 5.10 :(.
… …
589 but stateful semantics. 857 but stateful semantics.
590 - fixed a lot of typos in Coro.pm (patch submitted by David 858 - fixed a lot of typos in Coro.pm (patch submitted by David
591 Steinbrunner, which applied flawlessly). 859 Steinbrunner, which applied flawlessly).
592 860
5933.6 Sat Apr 14 17:13:31 CEST 2007 8613.6 Sat Apr 14 17:13:31 CEST 2007
594 - added some bugfixes to get eg/myhttpd working again. 862 - added some bugfixes to get eg/myhttpd working again.
595 - added Coro::Storable for often-cede'ing freeze/thaw. 863 - added Coro::Storable for often-cede'ing freeze/thaw.
596 - try to do a clean exit when a coroutine calls exit 864 - try to do a clean exit when a coroutine calls exit
597 (EXPERIMENTAL). 865 (EXPERIMENTAL).
598 - got rid of indirect call through _coro_init. 866 - got rid of indirect call through _coro_init.
599 - updated the partly antique examples in eg/ to 867 - updated the partly antique examples in eg/ to

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