state

type StateManager interface {
	// ToCosignTreeHead returns the node's to-cosign tree head
	ToCosignTreeHead() *types.SignedTreeHead

	// CosignedTreeHead returns the node's cosigned tree head
	CosignedTreeHead(context.Context) (*types.CosignedTreeHead, error)

	// AddCosignature verifies that a cosignature is valid for the to-cosign
	// tree head before adding it
	AddCosignature(context.Context, *types.PublicKey, *types.Signature) error

	// Run peridically rotates the node's to-cosign and cosigned tree heads
	Run(context.Context)
}

type StateManagerSingle struct {

	// Lock-protected access to pointers.  A write lock is only obtained once
	// per interval when doing pointer rotation.  All endpoints are readers.
	sync.RWMutex
	// contains filtered or unexported fields
}