leader

type ElectionInfo struct {
	// LeaderAddress is the ip address of leader
	LeaderAddress string

	// IsLeader returns true if current node is leader
	IsLeader bool
}

type LeaderElection interface {
	// Campaign run leader election loop
	Campaign()

	// GetLeaderInfo get leader info, return peer address
	GetLeaderInfo() string

	// IsLeader return true when this instance is leader
	IsLeader() bool

	// GetElectionInfo get info of election
	GetElectionInfo() (ElectionInfo, error)
}

type Stub struct {
	ElectionInfo
}