func (this *Election) doRestoreElection(state *thispb.ElectionState) {
atomic.StoreInt64(&this.currentRound, state.GetCurrentRound())
this.currentWinner = state.GetCurrentWinner()
}
func (this *Election) doSaveElection(state *thispb.ElectionState) {
state.CurrentRound = proto.Int64(this.CurrentRound())
state.CurrentWinner = proto.String(this.currentWinner)
}