kubernetes/staging/src/k8s.io/endpointslice/trafficdist/trafficdist.go

// ReconcileHints will reconcile hints for the given EndpointSlices.
//
// EndpointSlice resources within slicesUnchanged will not be modified.
func ReconcileHints(trafficDistribution *string, slicesToCreate, slicesToUpdate, slicesUnchanged []*discoveryv1.EndpointSlice) ([]*discoveryv1.EndpointSlice, []*discoveryv1.EndpointSlice, []*discoveryv1.EndpointSlice) { … }

type heuristic …

// endpointReady returns true if an Endpoint has the Ready condition set to
// true.
func endpointReady(endpoint discoveryv1.Endpoint) bool { … }

type defaultHeuristic …

// needsUpdate returns true if any endpoint in the slice has a zone hint.
func (defaultHeuristic) needsUpdate(slice *discoveryv1.EndpointSlice) bool { … }

// update removes zone hints from all endpoints.
func (defaultHeuristic) update(slice *discoveryv1.EndpointSlice) { … }

type preferCloseHeuristic …

// needsUpdate returns true if any ready endpoint in the slice has a
// missing or incorrect hint.
func (preferCloseHeuristic) needsUpdate(slice *discoveryv1.EndpointSlice) bool { … }

// update adds a same zone topology hint for all ready endpoints
func (preferCloseHeuristic) update(slice *discoveryv1.EndpointSlice) { … }