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Comparing Coro/Changes (file contents):
Revision 1.536 by root, Wed Apr 14 01:57:34 2010 UTC vs.
Revision 1.595 by root, Sat Oct 6 21:04:59 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: http://www.microsoft.com/msj/archive/s2ce.aspx
6TODO: __GCC_HAVE_DWARF2_CFI_ASM
8 7
8 - Coro::EV I/O watchers were not interruptible by exceptions
9 (Coro::State::throw) (testcase by sten).
10 - use fd -1 in mmap.
11 - cast I32 to int in error message printf.
12 - warn about broken so-called "hardened" kernels.
13
146.08 Fri Apr 13 12:05:47 CEST 2012
15 - be more aggressive about exiting like perl does - formerly,
16 exiting from the non-main thread would not execute END blocks.
17
186.07 Fri Nov 11 21:21:48 CET 2011
19 - work around a bug in PerlIO (setting $SIG{__WARN__} to a PVCV).
20 - update ecb.h.
21
226.06 Mon Aug 8 23:59:48 CEST 2011
23 - cygwin unfortunately patches the stack at runtime, so we use the pthreads
24 backend, which is an order of magnitude slower. unfortunately, cygwins
25 pthread implementation isn't very complete either, so allocate the stack
26 twice just to be sure.
27 (note: cygwin also enables mymalloc, which is NOT THREADSAFE ON WINDOWS,
28 in its ithreaded perl - best recompile cygwin and use the 'w'indows
29 backend for much better performance. also disable ithreads for
30 even better performance...).
31
326.05 Thu Aug 4 21:36:36 CEST 2011
33 - blush, condvar values would not be propagated from send to recv anymore
34 (reported by Chip Salzenberg).
35 - use exponential increase for the readline buffer length in
36 Coro::Handle. also reduce initial allocation to 1020 from 4096 bytes.
37
386.04 Wed Aug 3 17:15:45 CEST 2011
39 - use even more efficient and more compatible condvars for
40 compatibility to AnyEvent 6.x :)
41 - more inconsequential ecb.h updates.
42
436.03 Wed Aug 3 11:41:30 CEST 2011
44 - change how Coro patches AnyEvent condvars for compatibility to
45 AnyEvent 6.x.
46 - update ecb.h, to no longer include <pthread.h> in case WinNT.h
47 hasn't been included.
48
496.02 Wed Jul 13 04:35:19 CEST 2011
50 - "improve portability to Gentoo" - gentoo manages to put perl variables
51 in memory areas that are farther than 2gb apart, which the jit couldn't
52 handle and barfed. now it's just a bit slower on gentoo and similar
53 systems.
54
556.01 Sun Jul 3 12:31:14 CEST 2011
56 - workarounds are good, but the test for whether pthreads are used
57 was not good. thisone should be better.
58 - check differently whether gcc generates cfi instructions itself.
59
606.0 Wed Jun 29 19:43:35 CEST 2011
61 - INCOMPATIBLE CHANGE: unreferenced coro objects will now be
62 destroyed and cleaned up automatically (e.g. async { schedule }).
63 - implement a JIT compiler for part of the thread switch code,
64 which gives a 50% speed improvement on threaded perls, and
65 about 4% on non-thraeded perls (so threaded perls now finally
66 reach about half the speed of non-threaded perls).
67 - slightly modernise Coro::Intro, add section about rouse functions.
68 - avoid DEFSV and ERRSV, giving another 10% improvement
69 in thread switching.
70 - Coro::State->is_destroyed is now called is_zombie.
71 - implement a Coro->safe_cancel method that might fail, but
72 cancels in a "safer" way if it succeeds.
73 - add preliminary support for DEBUGGING perls.
74 - get rid of two hash-accesses when initialising a new Coro - this
75 speeds up coro creation by almost a factor of two.
76 - croak when a coro that is being cancelled tries to block
77 (e.g. while executing a guard block), instead of crashing or
78 deadlocking.
79 - use a more robust and also faster method to identify Coro::State
80 objects - speeds up everything a bit.
81 - implement Coro->cancel in XS for a 20% speed improvement, and to
82 be able to implement mutual cancellation.
83 - speed up context switches by a percent or two by more efficiently
84 allocating context stack entries.
85 - implement Coro->join and Coro->on_destroy in XS for a speedup and
86 a reduction in memory use.
87 - cancelling a coro while it itself is cancelling another coro is
88 now supported and working, instead of triggering an assertion.
89 - be a bit more crash-resistant when calling (buggy) on_destroy
90 callbacks (best effort).
91 - move on_destroy into the slf_frame, to allow extension slf
92 functions to have destructors.
93 - get rid if coro refcounting - simply crash in other interpreter
94 threads by nulling the pointers on clone.
95 - simplify warn/die hook handling when loading Coro - the convoluted
96 logic seems to be no longer neccessary.
97 - use libecb instead of our own home-grown gcc hacks.
98 - document alternatives to Coro::LWP. Please use them :)
99 - work around another mindless idiotic NEEDLESS bug in openbsd/mirbsds
100 sigaltstack. Really. wine suffers from it, erlang suffers from it,
101 and it's known since at least 2006.
102
1035.372 Wed Feb 23 06:14:30 CET 2011
104 - apparently mingw doesn't provide a working gettimeofday, try to
105 work around that by relying on Time::HiRes (indirectly brought to
106 my attention by Max Maischein).
107 - fix some portability issues when Time::HiRes was used.
108
1095.371 Mon Feb 21 14:36:08 CET 2011
110 - backport to windows process emulation code again.
111
1125.37 Sat Feb 19 07:49:44 CET 2011
113 - add a big "Coro thread life cycle" section to "man Coro".
114 - try a tentative workaround against the breakage that 5.13 has
115 introduced without depreciation period. sigh.
116 - no longer use Time::HiRes if gettimeofday is available, which
117 saves quite a lot of memory.
118
1195.36 Sun Feb 13 05:33:41 CET 2011
120 - automatically load Coro::Channel, Coro::RWLock, Coro::Semaphore,
121 Coro::SemaphoreSet, Coro::Signal and Coro::Specific on first "new"
122 method call.
123 - undocument Coro::Timer::sleep and obsolete whole module.
124 - optimise Coro::Timer::timeout memory and cpu usage.
125 - slightly updated Coro::Intro for recent changes.
126 - do not initialise PL_dirty anymore.
127
1285.25 Thu Nov 11 01:08:39 CET 2010
129 - try a different approach on netbsd - netbsd 5 finally has marginally
130 working pthreads, but still broken ucontext/sigaltstack.
131 - openbsd 4.8 finally got their act together, Coro works out of the box
132 with asm, setjmp and pthreads (no change, just informational).
133
1345.24 Sat Oct 23 11:27:12 CEST 2010
135 - port to the EV 4.0 API.
136 - work around bugs in mingw32, making strawberry perl work
137 out of the box.
138 - correctly modify Coro::AIO function prototypes
139 so that they reflect the "no optional parameters" rule.
140 - "ported" libcoro to C++.
141
1425.23 Mon May 17 18:50:42 CEST 2010
143 - be more resistant to ordering changes when initialising
144 Coro::AnyEvent, Coro::EV and Coro::Event (reported by Matthias
145 Waldorf).
9 - document that perl 5.12 deliberately removed support for cloning. 146 - document that perl 5.12 deliberately removed support for cloning.
10 147
115.22 Wed Apr 14 03:55:35 CEST 2010 1485.22 Wed Apr 14 03:55:35 CEST 2010
12 - correctly return udnef on errors in Coro::Handle::read/write 149 - correctly return udnef on errors in Coro::Handle::read/write
13 (testcase by Marc Wims). 150 (testcase by Marc Mims).
14 - convert Coro::Util into a "perl compatibility wrapper" - the functions 151 - convert Coro::Util into a "perl compatibility wrapper" - the functions
15 are less useful now, but are drop-in replacements for existing 152 are less useful now, but are drop-in replacements for existing
16 functions, listing better alternatives in the documentation. This also 153 functions, listing better alternatives in the documentation. This also
17 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton 154 fixes a bug in Coro::LWP which naively substituted Socket::inet_aton
18 with Coro::Util::inet_aton. 155 with Coro::Util::inet_aton.

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