def signal(sig)
      sig = sig.to_i if sig.to_i != 0
      applog(self, :info, "#{self.name} sending signal '#{sig}' to pid #{self.pid}")
      ::Process.kill(sig, self.pid) rescue nil
    end
def signal(sig)
      sig = sig.to_i if sig.to_i != 0
      applog(self, :info, "#{self.name} sending signal '#{sig}' to pid #{self.pid}")
      ::Process.kill(sig, self.pid) rescue nil
    end
Send the given signal to this process.

 Returns nothing