diff options
author | yugui <yugui@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-08-25 15:02:05 +0000 |
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committer | yugui <yugui@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-08-25 15:02:05 +0000 |
commit | 0dc342de848a642ecce8db697b8fecd83a63e117 (patch) | |
tree | 2b7ed4724aff1f86073e4740134bda9c4aac1a39 /trunk/ext/io/wait/lib/nonblock.rb | |
parent | ef70cf7138ab8034b5b806f466e4b484b24f0f88 (diff) |
added tag v1_9_0_4
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_9_0_4@18845 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'trunk/ext/io/wait/lib/nonblock.rb')
-rw-r--r-- | trunk/ext/io/wait/lib/nonblock.rb | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/trunk/ext/io/wait/lib/nonblock.rb b/trunk/ext/io/wait/lib/nonblock.rb new file mode 100644 index 0000000000..2103fdf25b --- /dev/null +++ b/trunk/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 if defined?(Fcntl::F_GETFL) |