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Comparing Coro/Changes (file contents):
Revision 1.382 by root, Wed Oct 22 16:34:07 2008 UTC vs.
Revision 1.449 by root, Thu Nov 20 07:12:41 2008 UTC

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 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!), 5 actor model (which is cool in a lot of important aspects (failures!),
6 but very lacking in others (higher level ipc)). 6 but very lacking in others (higher level ipc)).
7
85.0
9 - NEW ARCHITECTURE: use the latest 4.x version if you experience
10 stability issues.
11 - bump API version to 7 - all dependents must be recompiled.
12 - removed timed_* functions - they were not being used anyways
13 and should be replaced by a more generic mechanism -
14 and were annoying to support anyways :)
15 - removed SemaphoreSet's waiter method - use sem instead.
16 - Coro::Semaphore->adjust didn't correctly wake up enough waiters.
17 - async_pool did free a scalar value twice
18 ("Attempt to unreference...").
19 - fix a disastrous bug in the readline optimisation
20 introduced in 4.801.
21 - fix a longstanding bug where calling terminate on a coro that
22 was waiting for a semaphore that was just becoming available
23 would cause a deadlock (semaphore would get into a state where
24 it was available but waiters were still blocked).
25 - calling throw on a coroutine that is waiting for a semaphore will
26 no longer make it acquire the semaphore (and thus leak a count).
27 - perl's process emulation is now not even theoretically supported
28 anymore.
29 - new functions Coro::rouse_cb and Coro::rouse_wait for easier
30 conversion of callback-style to blocking-style.
31 - new methods $coro->schedule_to and ->cede_to, to specifically
32 schedule or cede to a specific coroutine.
33 - new function Coro::Semaphore::wait.
34 - use named constants in Coro::Channel (Richard Hundt).
35 - directly patch the entersub opcode calling SLF functions (cede,
36 transfer and so on). this does speed up context switching, but
37 more importanly, it frees us from the hardcoded behaviour of
38 entersub, so we might actually be able to return something from
39 those functions and atcually create new ones.
40 - take advantage of __builtin_frame_address on gcc.
41 - expose THX in coroapi (not sure whether this was a wise decision,
42 as "threaded" perls are running at half speed anyways).
43 - implement execute_slf (schedule-like-function) interface that makes
44 it possible to implement schedule-like-functions in XS.
45 - use new SLF interface to massively speed up Coro::EV by roughly a
46 factor of two.
47 - used new SLF interface to massively speed up Coro::Semaphore by a
48 factor of three.
49 - used new SLF interface to speed up Coro::AIO by roughly a factor of
50 four and reduce its memory usage considerably.
51 - implement Coro::SemaphoreSet purely in terms of Coro::Semaphore,
52 for a nice speedup and vastly more correct behaviour. Also implement
53 a new method "sem" to get at the underlying semaphore object.
54 - implement Coro::Channel in terms of Coro::Semaphore, for a moderate
55 (in comparison) 20-40% speedup.
56 - used new SLF interface to reimplement Coro::Signal gaining
57 some unknown (because I was too lazy), but certain, speedup, and also
58 making signals reliable for the first time.
59 - used new SLF interface and other optimisations to speed up async_pool
60 by a factor of two. It also doesn't rely on perl's exception mechanism
61 to exit anymore. The overhead for terminating an async_pool, coro over
62 a normal async is now very small.
63 - sped up coroutine creation/destruction by 40%.
64 - forgot to include Coro/libcoro/README in the dist for all these years.
65 - work around a freebsd pthreads bug (manual testcancel is required as
66 pthread_cond_wait isn't a cancellation point on freebsd).
67 - use new rouse functions to speed up and simplify Coro::BDB.
68 - make "prefer perl native functions" work with threaded perls.
69 - condense Coro::Debug ps output, hint at v and w flags.
70 - (libcoro) lots of minor cleanups and portability improvements.
71
724.914 Wed Nov 19 12:54:18 CET 2008
73 - fix a disastrous bug in the readline optimisation
74 introduced in 4.801.
75
764.913 Sat Nov 15 07:58:28 CET 2008
77 - async_pool did free a scalar value twice
78 ("Attempt to unreference...").
79
804.912 Thu Nov 13 18:31:23 CET 2008
81 - minor cleanups.
82 - use much larger stacks on linux and perl < 5.8.8.
83 - Coro::Debug::new_unix_server did not unlink the socket
84 when destroyed.
85
864.911 Tue Nov 11 04:26:17 CET 2008
87 - "port" to threaded perls.
88
894.91 Mon Nov 10 05:36:38 CET 2008
90 - the ->throw exception object no longer leaks.
91 - creating a new cctx leaked a scopestack entry (memleak).
92 - new coroutines didn't get created with a zero flags field
93 (unknown impact).
94 - calling ->throw on a not-yet-started coroutine should now work
95 instead of being ignored.
96 - ->throw is now supported on Coro::State objects.
97 - clean up cctx creation code a bit.
98 - entersub is actually a UNOP, not a LOGOP (not a bugfix).
99
1004.9 Sat Nov 8 17:45:27 CET 2008
101 - (libcoro) did not preserve rbp with CORO_ASM (we are getting there).
102 - (libcoro) no longer leak threads in the experimental pthread backend,
103 also speed it up considerably.
104 - (libcoro) do not rely on makecontext passing void *'s unscathed.
105 - fix compiletime dependencies on libcoro in the Makefile.
106 - cctx_count wasn't always updated properly.
107 - Coro::State::cctx_stacksize wasn't applied correctly.
108 - new function Coro::State::cctx_max_idle.
109 - the default max number of idle C contexts is now 4.
110 - (libcoro) try harder to get _setjmp/_longjmp.
111 - (libcoro) cleanup and extend the libcoro API to officially
112 allow the creation of empty source contexts.
113 - very experimental workaround for the totally broken netbsd platform.
114 - tried to hack around openbsd bugs.
115
1164.804 Wed Nov 5 16:36:00 CET 2008
117 - Coro::Debug::new_unix_server would not create a non-blocking listening
118 socket, sometimes causing freezes.
119 - (libcoro) fix misaligned stack points for setjmp and assembly
120 methods, which can cause crashes on x86/x86_64 with a sufficiently
121 aggressive compiler.
122 - new function: Coro::Debug::new_tcp_server.
123 - move ->throw into the Coro class because it only works on coro objects.
124
1254.803 Mon Nov 3 17:16:12 CET 2008
126 - (libcoro) use a global asm statement to become independent of gcc
127 otpimisations for CORO_ASM (thanks to pippijn for the idea).
128 - try to workaround yet another broken bsd, this time dragonfly.
129
1304.802 Thu Oct 30 10:56:12 CET 2008
131 - support -fno-omit-frame-pointer on x86 with the assembly method.
132 - tune 01_unblock.t tests a bit.
7 133
84.801 Wed Oct 22 18:33:37 CEST 2008 1344.801 Wed Oct 22 18:33:37 CEST 2008
9 - improve readline speed for very long "lines". 135 - improve readline speed for very long "lines".
10 - backport to 5.8.8. 136 - backport to 5.8.8.
11 137

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