The rb_define_method function takes a pointer to ANYARGS-ed functions,
which in fact varies 18 different prototypes. We still need to
preserve ANYARGS for storages but why not check the consistencies if
possible.
Q&As:
Q: Where did the magic number "18" came from in the description above?
A: Count the case branch of vm_method.c:call_cfunc_invoker_func().
Note also that the 18 branches has lasted for at least 25 years.
See also 200e0ee2fd.
Q: What is this __weakref__ thing?
A: That is a kind of function overloading mechanism that GCC provides.
In this case for instance rb_define_method0 is an alias of
rb_define_method, with a strong type.
Q: What is this __transparent_union__ thing?
A: That is another kind of function overloading mechanism that GCC
provides. In this case the attributed function pointer is either
VALUE(*)(int,VALUE*,VALUE) or VALUE(*)(int,const VALUE*,VALUE).
This is better than void* or ANYARGS because we can reject all
other possibilities than the two.
Q: What does this rb_define_method macro mean?
A: It selects appropriate alias of the rb_define_method function,
depending on the arity.
Q: Why the prototype change of rb_f_notimplement?
A: Function pointer to rb_f_notimplement is special cased in
vm_method.c:rb_add_method_cfunc(). That should be handled by the
__builtin_choose_expr chain inside of rb_define_method macro
expansion. In order to do so, comparison like (func ==
rb_f_notimplement) is inappropriate for __builtin_choose_expr's
expression (which must be a compile-time integer constant but the
address of rb_f_notimplement is not fixed until the linker). So
instead we are using __builtin_types_compatible_p, and in doing so
we need to distinguish rb_f_notimplement from others, by type.
* win32/file.c (replace_to_long_name): do not try to glob host
names and share names by FindFirstFile which is useless for that
purpose. [ruby-core:91656] [Bug #15633]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67163 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
as well. Follows up r66598.
https://bugs.ruby-lang.org/issues/15347#note-7 is saying __restrict
is supported on Visual Studio 2013.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66715 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* Define major and minor version numbers only in the public
include/ruby/version.h header, as the API version numbers.
* Define only teeny version number in the private version.h
header.
* RUBY_VERSION moved to version.c.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66599 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* coroutine/win32/Context.asm: old ml version 9 needs CPU
directive before `.model` directive.
* win32/Makefile.sub: specify object directories to separate Win32
and Win64 targets. Win32 rule was overridden by Win64 rule and
just ignored.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66059 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
All normal Ruby IO methods (IO#read, IO#gets, IO#write, ...) are
all capable of appearing to be "blocking" when presented with a
file description with the O_NONBLOCK flag set; so there is
little risk of incompatibility within Ruby-using programs.
The biggest compatibility risk is when spawning external
programs. As a result, stdin, stdout, and stderr are now always
made blocking before exec-family calls.
This change will make an event-oriented MJIT usable if it is
waiting on pipes on POSIX_like platforms.
It is ALSO necessary to take advantage of (proposed lightweight
concurrency (aka "auto-Fiber") or any similar proposal for
network concurrency: https://bugs.ruby-lang.org/issues/13618
Named-pipe (FIFO) are NOT yet non-blocking by default since
they are rarely-used and may introduce compatibility problems
and extra syscall overhead for a common path.
Please revert this commit if there are problems and if I am afk
since I am afk a lot, lately.
[ruby-core:89950] [Bug #14968]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65922 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* configure.ac: add --disable-fiber-coroutine option, and disable
it on x86-mingw32 for now.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65899 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Since `.revision.time` recipe needs `$(BASERUBY)`, it should not
try to get updated unconditionally, or tarballs fail to build on
environments where BASERUBY is not available.
All developers who build frequently use GNU make anyway, don't
you?
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65695 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
