"istio.io/istio/pkg/version"
)

type versionTopic struct{}

// VersionTopic returns a ControlZ topic that allows visualization of versioning info.
func VersionTopic() fw.Topic {
	return versionTopic{}
}

func (versionTopic) Title() string {
	return "Version Info"
}

func (versionTopic) Prefix() string {
	return "version"
}

func (versionTopic) Activate(context fw.TopicContext) {

	"istio.io/istio/pkg/log"
)

var coreTopics = []fw.Topic{
	topics.ScopeTopic(),
	topics.MemTopic(),
	topics.EnvTopic(),
	topics.ProcTopic(),
	topics.ArgsTopic(),
	topics.VersionTopic(),
	topics.SignalsTopic(),
}

var (
	allTopics          []fw.Topic
	topicMutex         sync.Mutex
	listeningTestProbe func()
)

// Server represents a running ControlZ instance.
type Server struct {