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nonblock.c: just yield if the flag is not changed

* ext/io/nonblock/nonblock.c (io_nonblock_set): return whether
  nonblock flag was changed.

* ext/io/nonblock/nonblock.c (rb_io_nonblock_block): nothing to
  restore but just yield unless nonblock flag is changed.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50531 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2015-05-18 10:30:36 +00:00
parent 903c0f55e9
commit 0a933cf3d4

View file

@ -50,21 +50,22 @@ rb_io_nonblock_p(VALUE io)
#endif
#ifdef F_SETFL
static void
static int
io_nonblock_set(int fd, int f, int nb)
{
if (nb) {
if ((f & O_NONBLOCK) != 0)
return;
return 0;
f |= O_NONBLOCK;
}
else {
if ((f & O_NONBLOCK) == 0)
return;
return 0;
f &= ~O_NONBLOCK;
}
if (fcntl(fd, F_SETFL, f) == -1)
rb_sys_fail(0);
return 1;
}
/*
@ -121,7 +122,8 @@ rb_io_nonblock_block(int argc, VALUE *argv, VALUE io)
f = io_nonblock_mode(fptr->fd);
restore[0] = fptr->fd;
restore[1] = f;
io_nonblock_set(fptr->fd, f, nb);
if (!io_nonblock_set(fptr->fd, f, nb))
return rb_yield(io);
return rb_ensure(rb_yield, io, io_nonblock_restore, (VALUE)restore);
}
#else