func getConfig(e *etcdm.EtcdManager) (*cluster.NilConfig, error) {
cv, _, err := e.GetClusterView()
if err != nil {
return nil, fmt.Errorf("cannot get clusterview: %v", err)
}
if cv == nil {
return nil, fmt.Errorf("no clusterview available")
}
cfg := cv.Config
if cfg == nil {
return nil, nil
}
return cfg, nil
}
func WaitClusterViewMaster(master string, e *etcdm.EtcdManager, timeout time.Duration) error {
start := time.Now()
for time.Now().Add(-timeout).Before(start) {
cv, _, err := e.GetClusterView()
if err != nil {
goto end
}
if cv != nil {
if cv.Master == master {
return nil
}
}
end:
time.Sleep(2 * time.Second)
}
return fmt.Errorf("timeout")
}