tracker

type ResourceTracker interface {
	Tracker

	// GetTracker returns a tracker for a specific resource type
	GetTracker(resourceType string) Tracker

	// CPUTracker returns the CPU resource tracker
	CPUTracker() Tracker

	// DiskTracker returns the disk resource tracker
	DiskTracker() Tracker
}

type Targeter interface {
	// TargetUsage returns the target resource usage for a node
	TargetUsage(nodeID ids.NodeID) uint64
}

type Tracker interface {
	// TotalUsage returns the total resource usage
	TotalUsage() uint64

	// Usage returns the resource usage for a specific node at a specific time
	Usage(nodeID ids.NodeID, at time.Time) uint64

	// Add adds resource usage
	Add(nodeID ids.NodeID, usage uint64)

	// Remove removes resource usage
	Remove(nodeID ids.NodeID, usage uint64)

	// Len returns the number of tracked nodes
	Len() int

	// TimeUntilUsage returns the time until the usage threshold is reached
	TimeUntilUsage(nodeID ids.NodeID, targetUsage uint64) time.Duration
}