Exemple #1
0
func (d dispatcher) Stop() error {
	var wait intsync.ErrorWaiter
	for _, i := range d.inbounds {
		wait.Submit(i.Stop)
	}

	for _, o := range d.outbounds {
		if o.Unary != nil {
			wait.Submit(o.Unary.Stop)
		}
		if o.Oneway != nil {
			wait.Submit(o.Oneway.Stop)
		}
	}

	if errors := wait.Wait(); len(errors) > 0 {
		return errorGroup(errors)
	}

	return nil
}
Exemple #2
0
func (d dispatcher) Start() error {
	var (
		mu               sync.Mutex
		startedInbounds  []transport.Inbound
		startedOutbounds []transport.Outbound
	)

	service := transport.ServiceDetail{
		Name:     d.Name,
		Registry: d,
	}

	startInbound := func(i transport.Inbound) func() error {
		return func() error {
			if err := i.Start(service, d.deps); err != nil {
				return err
			}

			mu.Lock()
			startedInbounds = append(startedInbounds, i)
			mu.Unlock()
			return nil
		}
	}

	startOutbound := func(o transport.Outbound) func() error {
		return func() error {
			if o == nil {
				return nil
			}

			if err := o.Start(d.deps); err != nil {
				return err
			}

			mu.Lock()
			startedOutbounds = append(startedOutbounds, o)
			mu.Unlock()
			return nil
		}
	}

	var wait intsync.ErrorWaiter
	for _, i := range d.inbounds {
		wait.Submit(startInbound(i))
	}

	// TODO record the name of the service whose outbound failed
	for _, o := range d.outbounds {
		wait.Submit(startOutbound(o.Unary))
		wait.Submit(startOutbound(o.Oneway))
	}

	errors := wait.Wait()
	if len(errors) == 0 {
		return nil
	}

	// Failed to start so stop everything that was started.
	wait = intsync.ErrorWaiter{}
	for _, i := range startedInbounds {
		wait.Submit(i.Stop)
	}
	for _, o := range startedOutbounds {
		wait.Submit(o.Stop)
	}

	if newErrors := wait.Wait(); len(newErrors) > 0 {
		errors = append(errors, newErrors...)
	}

	return errorGroup(errors)
}