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Comparing Coro/Changes (file contents):
Revision 1.539 by root, Mon May 17 16:51:44 2010 UTC vs.
Revision 1.608 by root, Sat Dec 8 00:43:39 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: 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
6
7 - improved Coro::State documentation a bit.
8
96.23 Fri Dec 7 23:36:37 CET 2012
10 - use experimental fiber implementation on native windows
11 perls.
12 - use sizeof (void *) as multiplication factor for stack sizes,
13 to accomodate the totally braindamaged microsoft 64 bit "os".
14 - changed verifier host from win2k-ap510-32 to win7-sp516-32/64.
15 activeperl 5.16 crashes when PerlIO_define_layer is called due
16 to some bug in the perl dll, strawberry perl at least passes
17 the testsuite.
18 - implement Coro::Handle->peeraddr/host/port, for slightly
19 improved compatibility with LWP.
20 - implement 5.17 compatibility by almost blindly applying a
21 good-looking patch by Father Chrysostomos.
22 - move stack management functions into libcoro 3.
23 - libcoro version 3 "released".
24 - support magic values as timed_io_once args.
25 - recommend AnyEvent 7+ or EV 4+, also require EV
26 version 4 or newer for Coro::EV.
27
286.10 Tue Oct 9 01:14:27 CEST 2012
29 - updated ecb.h, it had a typo that caused it to not compile on many
30 big endian systems (reported by many people).
31 - disable memory fences in ecb.h to improve portability.
32
336.09 Sat Oct 6 23:25:02 CEST 2012
34 - Coro::EV I/O watchers were not interruptible by exceptions
35 (Coro::State::throw) (testcase by sten).
36 - ->throw now puts threads into the ready queue, as this seems to
37 be expected by existing code, and code that doesn't cope with spurious
38 wakeups needs fixing anyway.
39 - use fd -1 in mmap.
40 - cast I32 to int in error message printf.
41 - warn about broken so-called "hardened" kernels.
42
436.08 Fri Apr 13 12:05:47 CEST 2012
44 - be more aggressive about exiting like perl does - formerly,
45 exiting from the non-main thread would not execute END blocks.
46
476.07 Fri Nov 11 21:21:48 CET 2011
48 - work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV).
49 - update ecb.h.
50
516.06 Mon Aug 8 23:59:48 CEST 2011
52 - cygwin unfortunately patches the stack at runtime, so we use the pthreads
53 backend, which is an order of magnitude slower. unfortunately, cygwins
54 pthread implementation isn't very complete either, so allocate the stack
55 twice just to be sure.
56 (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS,
57 in its ithreaded perl - best recompile cygwin and use the 'w'indows
58 backend for much better performance. also disable ithreads for
59 even better performance...).
60
616.05 Thu Aug 4 21:36:36 CEST 2011
62 - blush, condvar values would not be propagated from send to recv anymore
63 (reported by Chip Salzenberg).
64 - use exponential increase for the readline buffer length in
65 Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes.
66
676.04 Wed Aug 3 17:15:45 CEST 2011
68 - use even more efficient and more compatible condvars for
69 compatibility to AnyEvent 6.x :)
70 - more inconsequential ecb.h updates.
71
726.03 Wed Aug 3 11:41:30 CEST 2011
73 - change how Coro patches AnyEvent condvars for compatibility to
74 AnyEvent 6.x.
75 - update ecb.h, to no longer include <pthread.h> in case WinNT.h
76 hasn't been included.
77
786.02 Wed Jul 13 04:35:19 CEST 2011
79 - "improve portability to Gentoo" - gentoo manages to put perl variables
80 in memory areas that are farther than 2gb apart, which the jit couldn't
81 handle and barfed. now it's just a bit slower on gentoo and similar
82 systems.
83
846.01 Sun Jul 3 12:31:14 CEST 2011
85 - workarounds are good, but the test for whether pthreads are used
86 was not good. thisone should be better.
87 - check differently whether gcc generates cfi instructions itself.
88
896.0 Wed Jun 29 19:43:35 CEST 2011
90 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
91 destroyed and cleaned up automatically (e.g. async { schedule }).
92 - implement a JIT compiler for part of the thread switch code,
93 which gives a 50% speed improvement on threaded perls, and
94 about 4% on non-thraeded perls (so threaded perls now finally
95 reach about half the speed of non-threaded perls).
96 - slightly modernise Coro::Intro, add section about rouse functions.
97 - avoid DEFSV and ERRSV, giving another 10% improvement
98 in thread switching.
99 - Coro::State->is_destroyed is now called is_zombie.
100 - implement a Coro->safe_cancel method that might fail, but
101 cancels in a "safer" way if it succeeds.
102 - add preliminary support for DEBUGGING perls.
103 - get rid of two hash-accesses when initialising a new Coro - this
104 speeds up coro creation by almost a factor of two.
105 - croak when a coro that is being cancelled tries to block
106 (e.g. while executing a guard block), instead of crashing or
107 deadlocking.
108 - use a more robust and also faster method to identify Coro::State
109 objects - speeds up everything a bit.
110 - implement Coro->cancel in XS for a 20% speed improvement, and to
111 be able to implement mutual cancellation.
112 - speed up context switches by a percent or two by more efficiently
113 allocating context stack entries.
114 - implement Coro->join and Coro->on_destroy in XS for a speedup and
115 a reduction in memory use.
116 - cancelling a coro while it itself is cancelling another coro is
117 now supported and working, instead of triggering an assertion.
118 - be a bit more crash-resistant when calling (buggy) on_destroy
119 callbacks (best effort).
120 - move on_destroy into the slf_frame, to allow extension slf
121 functions to have destructors.
122 - get rid if coro refcounting - simply crash in other interpreter
123 threads by nulling the pointers on clone.
124 - simplify warn/die hook handling when loading Coro - the convoluted
125 logic seems to be no longer neccessary.
126 - use libecb instead of our own home-grown gcc hacks.
127 - document alternatives to Coro::LWP. Please use them :)
128 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
129 sigaltstack. Really. wine suffers from it, erlang suffers from it,
130 and it's known since at least 2006.
131
1325.372 Wed Feb 23 06:14:30 CET 2011
133 - apparently mingw doesn't provide a working gettimeofday, try to
134 work around that by relying on Time::HiRes (indirectly brought to
135 my attention by Max Maischein).
136 - fix some portability issues when Time::HiRes was used.
137
1385.371 Mon Feb 21 14:36:08 CET 2011
139 - backport to windows process emulation code again.
140
1415.37 Sat Feb 19 07:49:44 CET 2011
142 - add a big "Coro thread life cycle" section to "man Coro".
143 - try a tentative workaround against the breakage that 5.13 has
144 introduced without depreciation period. sigh.
145 - no longer use Time::HiRes if gettimeofday is available, which
146 saves quite a lot of memory.
147
1485.36 Sun Feb 13 05:33:41 CET 2011
149 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
150 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
151 method call.
152 - undocument Coro::Timer::sleep and obsolete whole module.
153 - optimise Coro::Timer::timeout memory and cpu usage.
154 - slightly updated Coro::Intro for recent changes.
155 - do not initialise PL_dirty anymore.
156
1575.25 Thu Nov 11 01:08:39 CET 2010
158 - try a different approach on netbsd - netbsd 5 finally has marginally
159 working pthreads, but still broken ucontext/sigaltstack.
160 - openbsd 4.8 finally got their act together, Coro works out of the box
161 with asm, setjmp and pthreads (no change, just informational).
162
1635.24 Sat Oct 23 11:27:12 CEST 2010
164 - port to the EV 4.0 API.
165 - work around bugs in mingw32, making strawberry perl work
166 out of the box.
167 - correctly modify Coro::AIO function prototypes
168 so that they reflect the "no optional parameters" rule.
169 - "ported" libcoro to C++.
8 170
95.23 Mon May 17 18:50:42 CEST 2010 1715.23 Mon May 17 18:50:42 CEST 2010
10 - be more resistant to ordering changes when initialising 172 - be more resistant to ordering changes when initialising
11 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias 173 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
12 Waldorf). 174 Waldorf).

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