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* io.c (rb_update_max_fd): Return immediately if the given fd is small

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enough.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44641 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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akr 2014-01-18 13:42:39 +00:00
parent f962eba5f4
commit e457f6312f
2 changed files with 8 additions and 0 deletions
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ChangeLog
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@ -1,3 +1,8 @@
Sat Jan 18 22:35:15 2014 Tanaka Akira <akr@fsij.org>
* io.c (rb_update_max_fd): Return immediately if the given fd is small
enough.
Sat Jan 18 22:25:53 2014 Tanaka Akira <akr@fsij.org> Sat Jan 18 22:25:53 2014 Tanaka Akira <akr@fsij.org>
* io.c: Test O_CLOEXEC only once. * io.c: Test O_CLOEXEC only once.

3
io.c
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@ -189,6 +189,9 @@ rb_update_max_fd(int fd)
struct stat buf; struct stat buf;
rb_atomic_t afd = (rb_atomic_t)fd; rb_atomic_t afd = (rb_atomic_t)fd;
if (afd <= max_file_descriptor)
return;
if (fstat(fd, &buf) != 0 && errno == EBADF) { if (fstat(fd, &buf) != 0 && errno == EBADF) {
rb_bug("rb_update_max_fd: invalid fd (%d) given.", fd); rb_bug("rb_update_max_fd: invalid fd (%d) given.", fd);
} }