Golang Machine.Status方法代码示例

func buildMachineMatcherShims(m *state.Machine, patterns []string) (shims []closurePredicate, _ error) {
	// Look at machine status.
	statusInfo, err := m.Status()
	if err != nil {
		return nil, err
	}
	shims = append(shims, func() (bool, bool, error) { return matchAgentStatus(patterns, statusInfo.Status) })

	// Look at machine addresses. WARNING: Avoid the temptation to
	// bring the append into the loop. The value we would close over
	// will continue to change after the closure is created, and we'd
	// only examine the last element of the loop for all closures.
	var addrs []string
	for _, a := range m.Addresses() {
		addrs = append(addrs, a.Value)
	}
	shims = append(shims, func() (bool, bool, error) { return matchSubnet(patterns, addrs...) })

	// If the machine hosts a unit that matches any of the given
	// criteria, consider the machine a match as well.
	unitShims, err := buildShimsForUnit(m.Units, patterns...)
	if err != nil {
		return nil, err
	}
	shims = append(shims, unitShims...)

	// Units may be able to match the pattern. Ultimately defer to
	// that logic, and guard against breaking the predicate-chain.
	if len(unitShims) <= 0 {
		shims = append(shims, func() (bool, bool, error) { return false, true, nil })
	}

	return
}

func (s *clientSuite) assertRetryProvisioning(c *gc.C, machine *state.Machine) {
	_, err := s.APIState.Client().RetryProvisioning(machine.Tag().(names.MachineTag))
	c.Assert(err, jc.ErrorIsNil)
	statusInfo, err := machine.Status()
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(statusInfo.Status, gc.Equals, status.Error)
	c.Assert(statusInfo.Message, gc.Equals, "error")
	c.Assert(statusInfo.Data["transient"], jc.IsTrue)
}

func (s *MachinerStateSuite) waitMachineStatus(c *gc.C, m *state.Machine, expectStatus state.Status) {
	timeout := time.After(worstCase)
	for {
		select {
		case <-timeout:
			c.Fatalf("timeout while waiting for machine status to change")
		case <-time.After(10 * time.Millisecond):
			statusInfo, err := m.Status()
			c.Assert(err, jc.ErrorIsNil)
			if statusInfo.Status != expectStatus {
				c.Logf("machine %q status is %s, still waiting", m, statusInfo.Status)
				continue
			}
			return
		}
	}
}