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Comparing Coro/Changes (file contents):
Revision 1.555 by root, Fri Apr 29 15:43:26 2011 UTC vs.
Revision 1.606 by root, Fri Dec 7 21:42:42 2012 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: channel->maxsize(newsize)? 4TODO: channel->maxsize(newsize)?
5TODO: http://www.microsoft.com/msj/archive/s2ce.aspx 5TODO: http://www.microsoft.com/msj/archive/s2ce.aspx
6TODO: cancel calling another coro that cancels ourselves => crash (CF_DELAYCANCEL?) -> canceltest 6TODO: __GCC_HAVE_DWARF2_CFI_ASM
7 7
8 - use experimental fiber implementation on native windows
9 perls.
10 - use sizeof (void *) as multiplication factor for stack sizes,
11 to accomodate the totally braindamaged microsoft 64 bit "os".
12 - changed verifier host from win2k-ap510-32 to win7-sp516-32/64.
13 activeperl 5.16 crashes when PerlIO_define_layer is called due
14 to some bug in the perl dll, strawberry perl at least passes
15 the testsuite.
16 - implement Coro::Handle->peeraddr/host/port, for slightly
17 improved compatibility with LWP.
18 - implement 5.17 compatibility by almost blindly applying a
19 good-looking patch by Father Chrysostomos.
20 - move stack management functions into libcoro 3.
21 - libcoro version 3 "released".
22 - support magic values as timed_io_once args.
23 - recommend AnyEvent 7+ or EV 4+, also require EV
24 version 4 or newer for Coro::EV.
25
266.10 Tue Oct 9 01:14:27 CEST 2012
27 - updated ecb.h, it had a typo that caused it to not compile on many
28 big endian systems (reported by many people).
29 - disable memory fences in ecb.h to improve portability.
30
316.09 Sat Oct 6 23:25:02 CEST 2012
32 - Coro::EV I/O watchers were not interruptible by exceptions
33 (Coro::State::throw) (testcase by sten).
34 - ->throw now puts threads into the ready queue, as this seems to
35 be expected by existing code, and code that doesn't cope with spurious
36 wakeups needs fixing anyway.
37 - use fd -1 in mmap.
38 - cast I32 to int in error message printf.
39 - warn about broken so-called "hardened" kernels.
40
416.08 Fri Apr 13 12:05:47 CEST 2012
42 - be more aggressive about exiting like perl does - formerly,
43 exiting from the non-main thread would not execute END blocks.
44
456.07 Fri Nov 11 21:21:48 CET 2011
46 - work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV).
47 - update ecb.h.
48
496.06 Mon Aug 8 23:59:48 CEST 2011
50 - cygwin unfortunately patches the stack at runtime, so we use the pthreads
51 backend, which is an order of magnitude slower. unfortunately, cygwins
52 pthread implementation isn't very complete either, so allocate the stack
53 twice just to be sure.
54 (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS,
55 in its ithreaded perl - best recompile cygwin and use the 'w'indows
56 backend for much better performance. also disable ithreads for
57 even better performance...).
58
596.05 Thu Aug 4 21:36:36 CEST 2011
60 - blush, condvar values would not be propagated from send to recv anymore
61 (reported by Chip Salzenberg).
62 - use exponential increase for the readline buffer length in
63 Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes.
64
656.04 Wed Aug 3 17:15:45 CEST 2011
66 - use even more efficient and more compatible condvars for
67 compatibility to AnyEvent 6.x :)
68 - more inconsequential ecb.h updates.
69
706.03 Wed Aug 3 11:41:30 CEST 2011
71 - change how Coro patches AnyEvent condvars for compatibility to
72 AnyEvent 6.x.
73 - update ecb.h, to no longer include <pthread.h> in case WinNT.h
74 hasn't been included.
75
766.02 Wed Jul 13 04:35:19 CEST 2011
77 - "improve portability to Gentoo" - gentoo manages to put perl variables
78 in memory areas that are farther than 2gb apart, which the jit couldn't
79 handle and barfed. now it's just a bit slower on gentoo and similar
80 systems.
81
826.01 Sun Jul 3 12:31:14 CEST 2011
83 - workarounds are good, but the test for whether pthreads are used
84 was not good. thisone should be better.
85 - check differently whether gcc generates cfi instructions itself.
86
876.0 Wed Jun 29 19:43:35 CEST 2011
88 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
89 destroyed and cleaned up automatically (e.g. async { schedule }).
90 - implement a JIT compiler for part of the thread switch code,
91 which gives a 50% speed improvement on threaded perls, and
92 about 4% on non-thraeded perls (so threaded perls now finally
93 reach about half the speed of non-threaded perls).
94 - slightly modernise Coro::Intro, add section about rouse functions.
95 - avoid DEFSV and ERRSV, giving another 10% improvement
96 in thread switching.
97 - Coro::State->is_destroyed is now called is_zombie.
98 - implement a Coro->safe_cancel method that might fail, but
99 cancels in a "safer" way if it succeeds.
100 - add preliminary support for DEBUGGING perls.
101 - get rid of two hash-accesses when initialising a new Coro - this
102 speeds up coro creation by almost a factor of two.
103 - croak when a coro that is being cancelled tries to block
104 (e.g. while executing a guard block), instead of crashing or
105 deadlocking.
106 - use a more robust and also faster method to identify Coro::State
107 objects - speeds up everything a bit.
8 - implement Coro->cancel in XS for a 20% speed improvement, and to 108 - implement Coro->cancel in XS for a 20% speed improvement, and to
9 be able to implement mutual cancellation. 109 be able to implement mutual cancellation.
110 - speed up context switches by a percent or two by more efficiently
111 allocating context stack entries.
112 - implement Coro->join and Coro->on_destroy in XS for a speedup and
113 a reduction in memory use.
114 - cancelling a coro while it itself is cancelling another coro is
115 now supported and working, instead of triggering an assertion.
10 - be a bit more crash-resistant when calling (buggy) on_destroy 116 - be a bit more crash-resistant when calling (buggy) on_destroy
11 callbacks (best effort). 117 callbacks (best effort).
118 - move on_destroy into the slf_frame, to allow extension slf
119 functions to have destructors.
120 - get rid if coro refcounting - simply crash in other interpreter
121 threads by nulling the pointers on clone.
122 - simplify warn/die hook handling when loading Coro - the convoluted
123 logic seems to be no longer neccessary.
124 - use libecb instead of our own home-grown gcc hacks.
125 - document alternatives to Coro::LWP. Please use them :)
126 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
127 sigaltstack. Really. wine suffers from it, erlang suffers from it,
128 and it's known since at least 2006.
12 129
135.372 Wed Feb 23 06:14:30 CET 2011 1305.372 Wed Feb 23 06:14:30 CET 2011
14 - apparently mingw doesn't provide a working gettimeofday, try to 131 - apparently mingw doesn't provide a working gettimeofday, try to
15 work around that by relying on Time::HiRes (indirectly brought to 132 work around that by relying on Time::HiRes (indirectly brought to
16 my attention by Max Maischein). 133 my attention by Max Maischein).

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