Class: IO

Inherits:
Object
  • Object
show all
Defined in:
lib/rubysl/io/nonblock/nonblock.rb

Instance Method Summary collapse

Instance Method Details

#nonblock(nb = true) ⇒ Object 



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# File 'lib/rubysl/io/nonblock/nonblock.rb', line 17

def nonblock(nb = true)
  nb, self.nonblock = nonblock?, nb
  yield
ensure
  self.nonblock = nb
end

#nonblock=(nb) ⇒ Object 



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# File 'lib/rubysl/io/nonblock/nonblock.rb', line 7

def nonblock=(nb)
  f = fcntl(Fcntl::F_GETFL)
  if nb
    f |= File::NONBLOCK
  else
    f &= ~File::NONBLOCK
  end
  fcntl(Fcntl::F_SETFL, f)
end

#nonblock? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rubysl/io/nonblock/nonblock.rb', line 3

def nonblock?
  (fcntl(Fcntl::F_GETFL) & File::NONBLOCK) != 0
end