/usr/share/doc/ruby1.8-examples/examples/drb/gw_ct.rb is in ruby1.8-examples 1.8.7.352-2ubuntu1.6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 | require 'drb/drb'
class Foo
include DRbUndumped
def foo(n)
n + n
end
def bar(n)
yield(n) + yield(n)
end
end
DRb.start_service(nil)
puts DRb.uri
ro = DRbObject.new(nil, ARGV.shift)
ro[:tcp] = Foo.new
gets
it = ro[:unix]
p [it, it.foo(1)]
gets
p it.bar('2') {|n| n * 3}
gets
|