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#
# if a block is specified then it is passed the child pid and run in a
# background thread. note that this thread will __not__ be blocked during the
# execution of the command so it may do useful work such as killing the child
# if execution time passes a certain threshold
#
require 'systemu'
looper = %q( ruby -e" loop{ STDERR.puts Time.now.to_i; sleep 1 } " )
status, stdout, stderr =
systemu looper do |cid|
sleep 3
Process.kill 9, cid
end
p status
p stderr
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