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author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2003-07-23 09:26:53 +0000 |
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committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2003-07-23 09:26:53 +0000 |
commit | eb5a52e0706c7321eaf04f1c3240618532db8ca3 (patch) | |
tree | c7535f1c700e1b070efa8bd26e7a2b1146bd6722 /ext/io/wait/lib | |
parent | 2436525ed8cd7b95a3a98173afd23804fedf6676 (diff) | |
download | ruby-eb5a52e0706c7321eaf04f1c3240618532db8ca3.tar.gz |
* ext/io/wait: imported.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4124 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/io/wait/lib')
-rw-r--r-- | ext/io/wait/lib/nonblock.rb | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/ext/io/wait/lib/nonblock.rb b/ext/io/wait/lib/nonblock.rb new file mode 100644 index 0000000000..46511fb40c --- /dev/null +++ b/ext/io/wait/lib/nonblock.rb @@ -0,0 +1,23 @@ +require "fcntl" +class IO + def nonblock? + (fcntl(Fcntl::F_GETFL) & File::NONBLOCK) != 0 + end + + def nonblock=(nb) + f = fcntl(Fcntl::F_GETFL) + if nb + f |= File::NONBLOCK + else + f &= ~File::NONBLOCK + end + fcntl(Fcntl::F_SETFL, f) + end + + def nonblock(nb = true) + nb, self.nonblock = nonblock?, nb + yield + ensure + self.nonblock = nb + end +end |