Ralf Pannemans <******@****.***> 1627289097 +0200

	"io/fs"
	"os"
	"syscall"
)

// probe probes IPv4, IPv6 and IPv4-mapped IPv6 communication
// capabilities.
//
// Plan 9 uses IPv6 natively, see ip(3).
func (p *ipStackCapabilities) probe() {
	p.ipv4Enabled = probe(netdir+"/iproute", "4i")
	p.ipv6Enabled = probe(netdir+"/iproute", "6i")
	if p.ipv4Enabled && p.ipv6Enabled {
		p.ipv4MappedIPv6Enabled = true
	}
}

func probe(filename, query string) bool {
	var file *file

				// TCP starts sending keepalive probes
				_ = syscall.SetsockoptInt(fd, syscall.IPPROTO_TCP, syscall.TCP_KEEPIDLE, 15)

				// Number of probes.
				// ~ cat /proc/sys/net/ipv4/tcp_keepalive_probes (defaults to 9, we reduce it to 5)
				_ = syscall.SetsockoptInt(fd, syscall.IPPROTO_TCP, syscall.TCP_KEEPCNT, 5)

				// Wait time after successful probe in seconds.

      privileged: false

      # The number of successive failed probes before indicating readiness failure.
      readinessFailureThreshold: 4

      # The initial delay for readiness probes in seconds.
      readinessInitialDelaySeconds: 0

      # The period between readiness probes.
      readinessPeriodSeconds: 15

      # Enables or disables a startup probe.

John Howard <******@****.***> 1597787025 -0700

      privileged: false
      # The number of successive failed probes before indicating readiness failure.
      readinessFailureThreshold: 4
      # The initial delay for readiness probes in seconds.
      readinessInitialDelaySeconds: 0
      # The period between readiness probes.
      readinessPeriodSeconds: 15
      # Enables or disables a startup probe.

John Howard <******@****.***> 1597787025 -0700

John Howard <******@****.***> 1682620617 -0700

John Howard <******@****.***> 1709052916 -0800

        then:
        action.execute(_) >> { Properties props ->
            props.remove('removed')
            props.changed = 'new'
            props.added = 'value'
        }
        props(changed:'new', added:'value') == result
    }

    def 'can use closure as action'() {
        given:
        transformer.addAction action { Properties props ->
            props.added = 'value'
        }
        when: