# File lib/vagrant-libvirt/action/forward_ports.rb, line 142
        def store_ssh_pid(host_port, ssh_pid)
          data_dir = @env[:machine].data_dir.join('pids')
          data_dir.mkdir unless data_dir.directory?

          data_dir.join("ssh_#{host_port}.pid").open('w') do |pid_file|
            pid_file.write(ssh_pid)
          end
        end