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* rb_w32_fstat{,i64}: speed up. adjuting timestamps in this function

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is to get rid of the side effect of ENV["TZ"].  then, if ENV["TZ"] is
  not set, no need to adjust.  this change makes File#stat about 60%
  faster.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48394 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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usa 2014-11-13 03:18:00 +00:00
parent 54af8757b3
commit e9885185c4
2 changed files with 15 additions and 1 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
Thu Nov 13 12:11:18 2014 NAKAMURA Usaku <usa@ruby-lang.org>
* rb_w32_fstat{,i64}: speed up. adjuting timestamps in this function
is to get rid of the side effect of ENV["TZ"]. then, if ENV["TZ"] is
not set, no need to adjust. this change makes File#stat about 60%
faster.
Thu Nov 13 11:56:12 2014 Nobuyoshi Nakada <nobu@ruby-lang.org>
* st.c: include "internal.h" for STATIC_ASSERT.

9
win32/win32.c
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@ -4815,6 +4815,8 @@ rb_w32_fstat(int fd, struct stat *st)
if (ret) return ret;
#ifdef __BORLANDC__
st->st_mode &= ~(S_IWGRP | S_IWOTH);
#else
if (GetEnvironmentVariableW(L"TZ", NULL, 0) == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND) return ret;
#endif
if (GetFileInformationByHandle((HANDLE)_get_osfhandle(fd), &info)) {
#ifdef __BORLANDC__
@ -4835,7 +4837,12 @@ rb_w32_fstati64(int fd, struct stati64 *st)
{
BY_HANDLE_FILE_INFORMATION info;
struct stat tmp;
int ret = fstat(fd, &tmp);
int ret;
#ifndef __BORLANDC__
if (GetEnvironmentVariableW(L"TZ", NULL, 0) == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND) return _fstati64(fd, st);
#endif
ret = fstat(fd, &tmp);
if (ret) return ret;
#ifdef __BORLANDC__