whitelist

var (

	//Metrics for collecting the number of invalid chains received
	CheckpointChainMeter = metrics.NewRegisteredMeter("chain/checkpoint/isvalidchain", nil)

	//Metrics for collecting the number of valid peers received
	CheckpointPeerMeter = metrics.NewRegisteredMeter("chain/checkpoint/isvalidpeer", nil)
)

var (

	//Metrics for collecting the future milestone number
	FutureMilestoneMeter = metrics.NewRegisteredGauge("chain/milestone/future", nil)

	//Metrics for collecting the length of the MilestoneIds map
	MilestoneIdsLengthMeter = metrics.NewRegisteredGauge("chain/milestone/idslength", nil)

	//Metrics for collecting the number of valid chains received
	MilestoneChainMeter = metrics.NewRegisteredMeter("chain/milestone/isvalidchain", nil)

	//Metrics for collecting the number of valid peers received
	MilestonePeerMeter = metrics.NewRegisteredMeter("chain/milestone/isvalidpeer", nil)
)

var (
	ErrMismatch = errors.New("mismatch error")
	ErrNoRemote = errors.New("remote peer doesn't have a target block number")

	ErrCheckpointMismatch = errors.New("checkpoint mismatch")
	ErrLongFutureChain    = errors.New("received future chain of unacceptable length")
	ErrNoRemoteCheckpoint = errors.New("remote peer doesn't have a checkpoint")
)