faked

#!/usr/bin/ruby

require 'optparse'

OptionParser.new do |opts|
  opts.banner = "Usage: faked [options]"

  opts.on("-v", "--[no-]verbose", "Run verbosely") do |v|
    options[:verbose] = v
  end
end.parse!

Signal.trap("USR1") do
  puts "faked terminating because of SIGUSR1..."
  exit(1)
end

Signal.trap("TERM") do
  puts "faked terminating..."
  exit(0)
end

# fake startup: sleep for 0.5s between each message
puts "faked starting... phase 0"
sleep 0.5
puts "faked starting... phase 1"
sleep 0.5
puts "faked starting... phase 2"
sleep 0.5
puts "faked started!"
# main loop
# - create one child per second
# - each child sleeps for 10s before terminating
(1..86400).each do |i|
  pid = fork do
    # avoid being killed by CTRL+C
    Process.setsid
    Signal.trap("INT") {}

    puts "faked[#{i}] child created"
    sleep 10
    puts "faked[#{i}] child stopping"
  end
  Process.detach(pid)
  sleep 1
end
# sleep forever after one day
sleep