POSIX only defines mode_t to be "an integer typea", and in fact
MacOS defines it to be uint16_t. We didn't have NUM2USHORT before
so it did not make sense but now that we have it. Why not check
apptopriately.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61950 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Support nanosec file timestamp on Windows 8 or later.
Original patches are written by kubo (Kubo Takehiro).
Windows 7 and earlier also supports nanosec file timestamp, but it's too
accurate than system time. so, this feature is disabled on such versions.
[Feature #13726]
this change also includes [Misc #13702]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61013 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Like stat(2), the access(2) syscall may take an indeterminate
amount of time on slow/remote filesystems.
This lets the following methods release the GVL to avoid choking
the entire VM while one thread is stuck on a slow or
non-responsive filesystem:
- File.readable?
- File.readable_real?
- File.writable?
- File.writable_real?
- File.executable?
- File.executable_real?
* file.c (nogvl_eaccess): new function
(nogvl_access): ditto
(rb_access): new wrapper function
(rb_eaccess): release GVL
(rb_file_readable_real_p): use rb_access
(rb_file_writable_real_p): ditto
(rb_file_executable_real_p): ditto
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60925 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This will make future work to release GVL here simpler.
* file.c (rb_eaccess): new function
(rb_file_readable_p): use rb_eaccess
(rb_file_writable_p): ditto
(rb_file_executable_p): ditto
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60895 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
mkfifo(3) is subject to the same problems as open(2) on slow
filesystems. Release the GVL and let the rest of the VM run
while we call mkfifo.
* file.c (nogvl_mkfifo): new function
(rb_file_s_mkfifo): release GVL
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60861 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
mode_t is the correct type for mkfifo(3). This fixes an
oversight from r60592 which made the same change to several
other functions.
* file.c (rb_file_s_mkfifo): use mode_t instead of int
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60847 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (nogvl_truncate): cast int to VALUE before "void *"
(rb_file_s_truncate): cast "void *" to VALUE before int
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60846 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
The `readlink' can stall on slow filesystems like `open' and
`read' syscalls. Release the GVL and let the rest of the VM
function while `readlink' runs.
* file.c (nogvl_readlink): new function
(readlink_without_gvl): ditto
(rb_readlink): use readlink_without_gvl
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60845 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Like IO#write and IO.open, these file operations have
unpredictable performance on slow file systems. Allow other
threads of the VM to proceed while they are taking place.
* file.c (nogvl_truncate): extract from rb_file_s_truncate
(rb_file_s_truncate): release GVL
(nogvl_ftruncate): extract from rb_file_truncate
(rb_file_truncate): release GVL
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60844 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c: [DOC] fix grammar in docs for File#path
and use a stronger description than "inaccurate".
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60706 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (rb_check_realpath_internal): infetct the result with
arguments, no taint if none are tainted and cwd is not used.
[ruby-core:83583] [Bug #14060]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60599 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (rb_check_realpath_internal): infetct the result with
arguments, no taint if none are tainted and cwd is not used.
[ruby-core:83583] [Bug #14060]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60596 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
mode_t is the correct type for these syscalls and it can be
easier-to-understand. It may also help portability to future
platforms and improve type checking.
* dir.c (dir_s_mkdir): use mode_t for mkdir(2)
* file.c (chmod_internal): use mode_t for chmod(2)
(rb_file_s_chmod): s/int/mode_t/
(lchmod_internal): ditto, deref pointer as in chmod_internal
(rb_file_s_lchmod): pass pointer as in rb_file_s_chmod
(rb_file_s_rename): use mode_t for umask(2)
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60592 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This means File.chmod, File.lchmod, File.chown, File.lchown,
File.unlink, and File.utime operations on slow filesystems
no longer hold up other threads.
The platform-specific utime_failed changes is compile-tested
using a new UTIME_EINVAL macro
This hurts performance on fast filesystem, but these methods
are unlikely to be performance bottlenecks and (IMHO) avoiding
pathological slowdowns and stalls are more important.
benchmark results:
minimum results in each 3 measurements.
Execution time (sec)
name trunk built
file_chmod 0.591 0.801
Speedup ratio: compare with the result of `trunk' (greater is better)
name built
file_chmod 0.737
* file.c (UTIME_EINVAL): new macro to ease compile-testing
* file.c (struct apply_arg): new struct
* file.c (no_gvl_apply2files): new function
* file.c (apply2files): release GVL
* file.c (chmod_internal): adjust for apply2files changes
* file.c (lchmod_internal): ditto
* file.c (chown_internal): ditto
* file.c (lchown_internal): ditto
* file.c (utime_failed): ditto
* file.c (utime_internal): ditto
* file.c (unlink_internal): ditto
[ruby-core:83200] [Feature #13996]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60386 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Because NaCl and PNaCl are already sunset status.
see https://bugs.chromium.org/p/chromium/issues/detail?id=239656#c160
configure.ac: Patch for this file was provided by @nobu.
[Feature #14041][ruby-core:83497][fix GH-1726]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60374 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (file_alt_separator): define only on DOSISH platforms.
File::ALT_SEPARATOR is nil on cygwin.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60159 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Like stat(2), lstat(2) can be expensive on slow filesystems and
should not block other threads. There should be a minor, but
not significant slowdowns in single-threaded performance similar
to benchmarks around the more-portable stat(2):
[ruby-core:83012] [Bug #13941]
* file.c (no_gvl_lstat): new function for rb_thread_call_without_gvl
(lstat_without_gvl): new wrapper to replace lstat(2) calls
(rb_file_s_lstat): s/lstat/&_without_gvl/
(rb_file_lstat): ditto
(rb_file_symlink_p): ditto
(rb_file_s_ftype): ditto
(rb_file_expand_path_internal): ditto
(realpath_rec): ditto
[ruby-core:83075] [Feature #13963]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60110 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (rb_file_s_rename): `struct rename_args ra` already has members
which contain C ptrs. Pointed by MSP-Greg. Thanks!
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60093 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (rb_file_s_rename): src and dst are used only on DOSISH env.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60092 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
rename(2) requires two pathname resolution operations which can
take considerable time on slow filesystems, release the GVL so
operations on other threads may proceed.
On fast, local filesystems, this change results in some slowdown
as shown by the new benchmark. I consider the performance trade
off acceptable as cases are avoided.
benchmark results:
minimum results in each 3 measurements.
Execution time (sec)
name trunk built
file_rename 2.648 2.804
Speedup ratio: compare with the result of `trunk' (greater is better)
name built
file_rename 0.944
* file.c (no_gvl_rename): new function
(rb_file_s_rename): release GVL for renames
* benchmark/bm_file_rename.rb: new benchmark
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60088 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
For apply2files, all callers use the `path' VALUE for
generating exceptions, so there is no need to guard it.
In realpath_rec, RB_GC_GUARD is already used on link_orig.
In rb_check_realpath_internal, RB_GC_GUARD is necessary and
preferable (see Appendix E. of doc/extension.rdoc)
* file.c (apply2files): remove unnecessary volatile
(realpath_rec): ditto
(rb_check_realpath_internal): ditto, and add RB_GC_GUARD
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60081 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
At the moment rb_stat function is blocking. This patch changes the
behaviour to release the gvl while waiting for OS to return from
f(stat).
There is behaviour impact, but not significant (times are for 100000
iterations):
$ ~/releaseruby_patch/bin/ruby bench.rb
Rehearsal ------------------------------------------------
File.exist?: 0.036412 0.056616 0.093028 ( 0.093075)
--------------------------------------- total: 0.093028sec
user system total real
File.exist?: 0.042953 0.049783 0.092736 ( 0.092804)
$ ~/releaseruby_no_patch/bin/ruby bench.rb
Rehearsal ------------------------------------------------
File.exist?: 0.056094 0.026293 0.082387 ( 0.082389)
--------------------------------------- total: 0.082387sec
user system total real
File.exist?: 0.037250 0.046702 0.083952 ( 0.083956)
Based on the patch by Wolf <wolf@wolfsden.cz> at [ruby-core:83012],
with using `rb_thread_io_blocking_region` for `fstat`.
[Bug #13941]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60027 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (rb_check_realpath): returns real path which has no
symbolic links. similar to rb_realpath except for returning
Qnil if any parts did not exist.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59983 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (rb_file_s_basename, rb_file_s_dirname): [DOC] state
that trailing separators will be stripped first, like as
basename(1) and dirname(1). [ruby-core:82828] [Bug #13908]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59933 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
File#path for a file opened with O_TMPFILE has no meaning.
A filepath returned by this method isn't guarranteed about its accuracy,
but files opened with O_TMPFILE are known its recorded path has no
meaning. So let them not to return any pathname.
After a discussion in ruby-core, just returning Qnil makes guessing the
root cause difficult. Instead, this patch makes the method to raise an
error.
Other consideration is calling fnctl(2) on rb_file_path, but it adds a
overhead, and it's difficult to determine O_TMPFILE status after fd has
been closed.
[Feature #13568]
* io.c(rb_file_open_generic): Set Qnil to fptr->pathv when opening a
file using O_TMPFILE
* file.c(rb_file_path): Raise IOError when fptr->pathv is Qnil
* file.c(rb_file_path): [DOC] Update for the new behavior
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59704 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (rb_file_s_mkfifo): enclose rdoc by ifdef so it will be
generated properly.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59443 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* dir.c (rb_dir_getwd_ospath): return cwd path in the OS path
encoding.
* file.c (rb_realpath_internal): work in the OS path encoding
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59040 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (path_check_0): preserve encoding of path name in warning
message.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59008 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* load.c (rb_require_internal): convert to path name with the
given safe level, without setting global safe level.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58987 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
To convert the object implicitly, it has had two parts in convert_type() which are
1. lookink up the method's id
2. calling the method
Seems that strncmp() and strcmp() in convert_type() are slightly heavy to look up
the method's id for type conversion.
This patch will add and use internal APIs (rb_convert_type_with_id, rb_check_convert_type_with_id)
to call the method without looking up the method's id when convert the object.
Array#flatten -> 19 % up
Array#+ -> 3 % up
[ruby-dev:50024] [Bug #13341] [Fix GH-1537]
### Before
Array#flatten 104.119k (± 1.1%) i/s - 525.690k in 5.049517s
Array#+ 1.993M (± 1.8%) i/s - 10.010M in 5.024258s
### After
Array#flatten 124.005k (± 1.0%) i/s - 624.240k in 5.034477s
Array#+ 2.058M (± 4.8%) i/s - 10.302M in 5.019328s
### Test Code
require 'benchmark/ips'
class Foo
def to_ary
[1,2,3]
end
end
Benchmark.ips do |x|
ary = []
100.times { |i| ary << i }
array = [ary]
x.report "Array#flatten" do |i|
i.times { array.flatten }
end
x.report "Array#+" do |i|
obj = Foo.new
i.times { array + obj }
end
end
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58978 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c(rb_file_path): [DOC] Note that the pathname returned by this
method can be inaccurate, for instance file gets moved, renamed,
deleted or is created with File::TMPFILE option.
Relates to [Feature #13568]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58734 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
"/dev/null" is a common sight for pre-1.9.3-compatible code
targeting *nix systems, so deduplicate it here, as well.
* file.c (Init_File): use fstring for File::NULL
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57996 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
"/" and ":" are always statically registered in symbol.c (Init_op_tbl),
and "\n" is a commonly seen in source code.
* file.c (Init_File): fstring on File::SEPARATOR and File::PATH_SEPARATOR
* io.c (Init_IO): fstring on rb_default_rs ("\n")
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57995 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (rb_file_join): join using "/" always, not a constant.
and fix the document. [ruby-core:79579] [Bug #13223]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57960 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (rb_get_path_check_convert): refine the error message
when the path name contains null byte.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57336 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (isADS): add macro to tell if Alternate Data Stream
separator, to distinguish from drive letter.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56996 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (rb_default_home_dir): resolve home directory from the
system database when HOME is not set. [Feature #12695]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56902 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c: include sys/sysmacros.h for ArchLinux which deprecated
use of major() and minor() in sys/types.h.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56549 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (rb_stat_dev_major, rb_stat_dev_minor): use DEVT2NUM as
well as rdev_major and rdev_minor.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56547 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (append_fspath): normalize directory name to be appended
on OS X. [ruby-core:75957] [Ruby trunk Bug#12483]
https://github.com/rails/rails/issues/25303#issuecomment-224834804
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55385 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (rb_home_dir_of): return the default home path if the
user name is the current user name, on platforms where struct
pwd is not supported. a temporary measure against
[Bug #12226].
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54947 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (apply2files): return Fixnum so that callers can just
return it.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54532 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (apply2files): apply to a VALUE vector instead of a
temporary array.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54530 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (rb_realpath_internal): no argument conversions since
this internal function does not need to_path and encoding
conversions, not to be affected by the default internal
encoding.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54528 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (rb_file_s_split): use rb_file_dirname instead of
rb_file_s_dirname with unused Qnil.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54171 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (ruby_is_fd_loadable): now return -1 if loadable but
may block.
* ruby.c (open_load_file): wait to read by the result of
ruby_is_fd_loadable, without fstat.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54099 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c, io.c, util.c: prefer rb_syserr_fail with saved errno
over setting errno then call rb_sys_fail, not to be clobbered
potentially and to reduce thread local errno accesses.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53264 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
NULL checking is finished Before call of memsize functions.
See r52979.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52986 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (rb_stat_wr, rb_stat_ww): call get_stat only once and
reduce checking struct. patch by Yuki Kurihara in
[ruby-core:71949]. [Misc #11789]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52970 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* beos: Drop support for BeOS now that Haiku is stable.
[Fix GH-1112]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52731 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c: [DOC] add a missing period to File docs, to terminate
the sentence and separate from the next sentence. [Fix GH-1111]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52729 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
comparing the file indexes on Windows. designate by kosaki.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52188 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Even if S_ISREG() is true, the file may be file on FUSE filesystem
or something. We can't assume O_NONBLOCK is safe.
Moreover, we should wait if the path is point to FIFO. That's
FIFO semantics. GVL should be transparent from ruby script.
Thus, just reopen without O_NONBLOCK for filling the requirements.
[Bug #11060][Bug #11559]
* ruby.c (loadopen_func): new for the above.
* file.c (ruby_is_fd_loadable): new. for checks loadable file type
of not.
* file.c (rb_file_load_ok): use ruby_is_fd_loadble()
* internal.h: add ruby_is_fd_loadble()
* common.mk: now, ruby.o depend on thread.h.
* test/ruby/test_require.rb
(TestRequire#test_loading_fifo_threading_success): new test.
This test successful case that loading from FIFO.
* test/ruby/test_require.rb
(TestRequire#test_loading_fifo_threading_raise): rename from
test_loading_fifo_threading. You souldn't rescue an exception
if you test raise or not.
Moreover, this case should be caught IOError because load(FIFO)
should be blocked until given any input.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52151 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (rb_file_expand_path_internal): concatenate converted
string to the result instead of making converted string and
append it.
* string.c (rb_str_cat_conv_enc_opts): from rb_str_conv_enc_opts,
separate function to concatenate with transcoding.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52147 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (rb_str_encode_ospath): prefer encoding index as possible
until rb_encoding is needed.
* file.c (rb_file_expand_path_internal): ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52146 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (rb_file_load_ok): open in non-blocking mode withoout
releasing GVL. don't care about others than regular files and
directories. [ruby-dev:49272] [Bug #11559]
* ruby.c (load_file_internal): ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52139 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (rb_str_normalize_ospath): place normalized strings to
the result string directly, to get rid of intermediate objects
and copying.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52015 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (rb_file_s_utime): same timespec for same time object.
assume time objects are static.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51926 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* encindex.h: separate encoding index constants from internal.h.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51861 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* internal.h (rb_readlink): move the declaration.
* ruby.c (dladdr_path): rb_readlink now requires the result
encoding.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51769 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* file.c (rb_realpath_internal): use filesystem encoding if the
argument is in ASCII encodings.
* win32/file.c (rb_readlink): needs the result encoding.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51738 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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