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Comparing Coro/Changes (file contents):
Revision 1.559 by root, Fri May 6 21:15:17 2011 UTC vs.
Revision 1.590 by root, Fri Apr 13 10:53:24 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: __GCC_HAVE_DWARF2_CFI_ASM
6 7
7 - croak when a coro being cancelled tries to block (e.g. while 86.08 Fri Apr 13 12:05:47 CEST 2012
8 executing a guard block). 9 - be more aggressive about exiting like perl does - formerly,
10 exiting from the non-main thread would not execute END blocks.
11
126.07 Fri Nov 11 21:21:48 CET 2011
13 - work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV).
14 - update ecb.h.
15
166.06 Mon Aug 8 23:59:48 CEST 2011
17 - cygwin unfortunately patches the stack at runtime, so we use the pthreads
18 backend, which is an order of magnitude slower. unfortunately, cygwins
19 pthread implementation isn't very complete either, so allocate the stack
20 twice just to be sure.
21 (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS,
22 in its ithreaded perl - best recompile cygwin and use the 'w'indows
23 backend for much better performance. also disable ithreads for
24 even better performance...).
25
266.05 Thu Aug 4 21:36:36 CEST 2011
27 - blush, condvar values would not be propagated from send to recv anymore
28 (reported by Chip Salzenberg).
29 - use exponential increase for the readline buffer length in
30 Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes.
31
326.04 Wed Aug 3 17:15:45 CEST 2011
33 - use even more efficient and more compatible condvars for
34 compatibility to AnyEvent 6.x :)
35 - more inconsequential ecb.h updates.
36
376.03 Wed Aug 3 11:41:30 CEST 2011
38 - change how Coro patches AnyEvent condvars for compatibility to
39 AnyEvent 6.x.
40 - update ecb.h, to no longer include <pthread.h> in case WinNT.h
41 hasn't been included.
42
436.02 Wed Jul 13 04:35:19 CEST 2011
44 - "improve portability to Gentoo" - gentoo manages to put perl variables
45 in memory areas that are farther than 2gb apart, which the jit couldn't
46 handle and barfed. now it's just a bit slower on gentoo and similar
47 systems.
48
496.01 Sun Jul 3 12:31:14 CEST 2011
50 - workarounds are good, but the test for whether pthreads are used
51 was not good. thisone should be better.
52 - check differently whether gcc generates cfi instructions itself.
53
546.0 Wed Jun 29 19:43:35 CEST 2011
55 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
56 destroyed and cleaned up automatically (e.g. async { schedule }).
57 - implement a JIT compiler for part of the thread switch code,
58 which gives a 50% speed improvement on threaded perls, and
59 about 4% on non-thraeded perls (so threaded perls now finally
60 reach about half the speed of non-threaded perls).
61 - slightly modernise Coro::Intro, add section about rouse functions.
62 - avoid DEFSV and ERRSV, giving another 10% improvement
63 in thread switching.
64 - Coro::State->is_destroyed is now called is_zombie.
9 - implement a Coro::State->safe_cancel method that might fail, but 65 - implement a Coro->safe_cancel method that might fail, but
10 cancels in a "safer" way. 66 cancels in a "safer" way if it succeeds.
67 - add preliminary support for DEBUGGING perls.
68 - get rid of two hash-accesses when initialising a new Coro - this
69 speeds up coro creation by almost a factor of two.
70 - croak when a coro that is being cancelled tries to block
71 (e.g. while executing a guard block), instead of crashing or
72 deadlocking.
73 - use a more robust and also faster method to identify Coro::State
74 objects - speeds up everything a bit.
11 - implement Coro->cancel in XS for a 20% speed improvement, and to 75 - implement Coro->cancel in XS for a 20% speed improvement, and to
12 be able to implement mutual cancellation. 76 be able to implement mutual cancellation.
77 - speed up context switches by a percent or two by more efficiently
78 allocating context stack entries.
79 - implement Coro->join and Coro->on_destroy in XS for a speedup and
80 a reduction in memory use.
13 - cancelling a coro while it itself is cancelling another coro is 81 - cancelling a coro while it itself is cancelling another coro is
14 now supported and working, instead of triggering an assertion. 82 now supported and working, instead of triggering an assertion.
15 - be a bit more crash-resistant when calling (buggy) on_destroy 83 - be a bit more crash-resistant when calling (buggy) on_destroy
16 callbacks (best effort). 84 callbacks (best effort).
17 - move on_destroy into the slf_frame, to allow extension slf 85 - move on_destroy into the slf_frame, to allow extension slf
18 functions to have destructors. 86 functions to have destructors.
87 - get rid if coro refcounting - simply crash in other interpreter
88 threads by nulling the pointers on clone.
89 - simplify warn/die hook handling when loading Coro - the convoluted
90 logic seems to be no longer neccessary.
91 - use libecb instead of our own home-grown gcc hacks.
92 - document alternatives to Coro::LWP. Please use them :)
93 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
94 sigaltstack. Really. wine suffers from it, erlang suffers from it,
95 and it's known since at least 2006.
19 96
205.372 Wed Feb 23 06:14:30 CET 2011 975.372 Wed Feb 23 06:14:30 CET 2011
21 - apparently mingw doesn't provide a working gettimeofday, try to 98 - apparently mingw doesn't provide a working gettimeofday, try to
22 work around that by relying on Time::HiRes (indirectly brought to 99 work around that by relying on Time::HiRes (indirectly brought to
23 my attention by Max Maischein). 100 my attention by Max Maischein).

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