Method: Fallen#start!

Defined in:
lib/fallen.rb

#start! ⇒ Object

Brings the fallen angel to life

If a PID file was provided it will try to store the current PID. If this files exists it will try to check if the stored PID is already running, in which case Fallen will exit with an error code.



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# File 'lib/fallen.rb', line 70

def start!
  if @pid_file && File.exists?(@pid_file)
    pid = File.read(@pid_file).strip
    begin
      Process.kill 0, pid.to_i
      STDERR.puts "Daemon is already running with PID #{pid}"
      exit 2
    rescue Errno::ESRCH
      run!
    end
  else
    run!
  end
end