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require 'socket'
child_socket, parent_socket = Socket.pair(:UNIX, :DGRAM, 0)
maxlen = 1000
fork do
parent_socket.close
4.times do
instruction = child_socket.recv(maxlen)
child_socket.send("#{instruction} accomplished!", 0)
end
end
child_socket.close
2.times do
parent_socket.send("Heavy lifting", 0)
end
2.times do
parent_socket.send("Feather lifting", 0)
end
4.times do
$stdout.puts parent_socket.recv(maxlen)
end
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