When ANSI versions of PeekConsoleInput read multibyte charactor
partially, subsequent ReadFile returns wrong data on newer Windows
10 versions (probably since Windows Terminal introduced). To
avoid this, use Unicode version of of PeekConsoleInput/ReadConsole.
- prerequisite of supporting YJIT with VC++.
- note that now can specfily `--yjit` on mswin64, but not enabled
YJIT'ed code because of YJIT requires `OPT_DIRECT_THREADED_CODE`
or `OPT_CALL_THREADED_CODE` in `rb_yjit_compile_iseq`.
This partially reverts commit "Windows: Improve readablity of
getenv() encoding" 14453a256d.
The `getenv` macro defined here is to also substitute the function
in dln_find.c, not only in this file.
* Windows: Read ENV names and values as UTF-8 encoded Strings
Implements issue #12650: fix https://bugs.ruby-lang.org/issues/12650
This also removes the special encoding for ENV['PATH'] and some
complexity in the code that is unnecessary now.
* Windows: Improve readablity of getenv() encoding
getenv() did use the expected codepage as an implicit parameter of the macro.
This is mis-leading since include/ruby/win32.h has a different definition.
Using the "cp" variable explicit (like the other function calls) makes it
more readable and consistent.
* Windows: Change external C-API macros getenv() and execv() to use UTF-8
They used to process and return strings with locale encoding,
but since all ruby-internal spawn and environment functions use UTF-8,
it makes sense to change the C-API equally.
This partially reverts commit "Windows: Improve readablity of
getenv() encoding" 14453a256d.
The `getenv` macro defined here is to also substitute the function
in dln_find.c, not only in this file.
getenv() did use the expected codepage as an implicit parameter of the macro.
This is mis-leading since include/ruby/win32.h has a different definition.
Using the "cp" variable explicit (like the other function calls) makes it
more readable and consistent.
Saves comitters' daily life by avoid #include-ing everything from
internal.h to make each file do so instead. This would significantly
speed up incremental builds.
We take the following inclusion order in this changeset:
1. "ruby/config.h", where _GNU_SOURCE is defined (must be the very
first thing among everything).
2. RUBY_EXTCONF_H if any.
3. Standard C headers, sorted alphabetically.
4. Other system headers, maybe guarded by #ifdef
5. Everything else, sorted alphabetically.
Exceptions are those win32-related headers, which tend not be self-
containing (headers have inclusion order dependencies).
NtSocketsInitialized behavior changed in e33b1690, requiring
a call to rb_w32_sysinit for starting Windows Sockets.
This commit removes NtSocketsInitialized entirely to avoid confusion.
Signed-off-by: Gabriel Nagy <gabriel.nagy@puppet.com>
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.
