etcdv3

type EtcdRegister struct {
	Etcd3Client *etcd3.Client
	Logger      *zap.Logger
	Key         string //service uniq-key
	Value       string //micro-service ip+port+weight
	Ttl         time.Duration
	Ctx         context.Context
	Cancel      context.CancelFunc
	ApiOn       bool
	Leaseid     etcd3.LeaseID
}

type EtcdResolver struct {
	Schemename string
	EtcdCli    *etcd3.Client // etcd3 client
	WatchKey   string
	Watcher    *EtcdWatcher
	Clientconn resolver.ClientConn
	Wg         sync.WaitGroup
	//CloseCh    chan struct{} // 关闭 channel
	Logger *zap.Logger

	//control
	Ctx    *context.Context
	Cancel context.CancelFunc
}

type EtcdWatcher struct {
	WatchKey  string
	Client    *etcd3.Client
	Ctx       *context.Context
	Cancel    context.CancelFunc
	AddrsList []resolver.Address
	WatchCh   etcd3.WatchChan // watch() RETURN channel
	Logger    *zap.Logger
	Wg        *sync.WaitGroup
}