Minor cleanups in pkg/proxy/endpoints.go

pkg/proxy/endpoints.go

@@ -197,18 +197,18 @@ type UpdateEndpointMapResult struct {
 }
 
 // UpdateEndpointsMap updates endpointsMap base on the given changes.
-func UpdateEndpointsMap(endpointsMap EndpointsMap, changes *EndpointChangeTracker) (result UpdateEndpointMapResult) {
+func (em EndpointsMap) Update(changes *EndpointChangeTracker) (result UpdateEndpointMapResult) {
 	result.StaleEndpoints = make([]ServiceEndpoint, 0)
 	result.StaleServiceNames = make([]ServicePortName, 0)
 	result.LastChangeTriggerTimes = make([]time.Time, 0)
 
-	endpointsMap.apply(
+	em.apply(
 		changes, &result.StaleEndpoints, &result.StaleServiceNames, &result.LastChangeTriggerTimes)
 
 	// TODO: If this will appear to be computationally expensive, consider
 	// computing this incrementally similarly to endpointsMap.
 	result.HCEndpointsLocalIPSize = make(map[types.NamespacedName]int)
-	localIPs := GetLocalEndpointIPs(endpointsMap)
+	localIPs := em.getLocalEndpointIPs()
 	for nsn, ips := range localIPs {
 		result.HCEndpointsLocalIPSize[nsn] = len(ips)
 	}
@@ -290,8 +290,8 @@ func (em EndpointsMap) apply(changes *EndpointChangeTracker, staleEndpoints *[]S
 	changes.lock.Lock()
 	defer changes.lock.Unlock()
 	for _, change := range changes.items {
-		em.Unmerge(change.previous)
-		em.Merge(change.current)
+		em.unmerge(change.previous)
+		em.merge(change.current)
 		detectStaleConnections(change.previous, change.current, staleEndpoints, staleServiceNames)
 	}
 	changes.items = make(map[types.NamespacedName]*endpointsChange)
@@ -302,23 +302,23 @@ func (em EndpointsMap) apply(changes *EndpointChangeTracker, staleEndpoints *[]S
 }
 
 // Merge ensures that the current EndpointsMap contains all <service, endpoints> pairs from the EndpointsMap passed in.
-func (em EndpointsMap) Merge(other EndpointsMap) {
+func (em EndpointsMap) merge(other EndpointsMap) {
 	for svcPortName := range other {
 		em[svcPortName] = other[svcPortName]
 	}
 }
 
 // Unmerge removes the <service, endpoints> pairs from the current EndpointsMap which are contained in the EndpointsMap passed in.
-func (em EndpointsMap) Unmerge(other EndpointsMap) {
+func (em EndpointsMap) unmerge(other EndpointsMap) {
 	for svcPortName := range other {
 		delete(em, svcPortName)
 	}
 }
 
 // GetLocalEndpointIPs returns endpoints IPs if given endpoint is local - local means the endpoint is running in same host as kube-proxy.
-func GetLocalEndpointIPs(endpointsMap EndpointsMap) map[types.NamespacedName]sets.String {
+func (em EndpointsMap) getLocalEndpointIPs() map[types.NamespacedName]sets.String {
 	localIPs := make(map[types.NamespacedName]sets.String)
-	for svcPortName, epList := range endpointsMap {
+	for svcPortName, epList := range em {
 		for _, ep := range epList {
 			if ep.GetIsLocal() {
 				nsn := svcPortName.NamespacedName

pkg/proxy/endpoints_test.go

@@ -112,7 +112,7 @@ func TestGetLocalEndpointIPs(t *testing.T) {
 
 	for tci, tc := range testCases {
 		// outputs
-		localIPs := GetLocalEndpointIPs(tc.endpointsMap)
+		localIPs := tc.endpointsMap.getLocalEndpointIPs()
 
 		if !reflect.DeepEqual(localIPs, tc.expected) {
 			t.Errorf("[%d] expected %#v, got %#v", tci, tc.expected, localIPs)
@@ -1213,7 +1213,7 @@ func TestUpdateEndpointsMap(t *testing.T) {
 				fp.addEndpoints(tc.previousEndpoints[i])
 			}
 		}
-		UpdateEndpointsMap(fp.endpointsMap, fp.endpointsChanges)
+		fp.endpointsMap.Update(fp.endpointsChanges)
 		compareEndpointsMaps(t, tci, fp.endpointsMap, tc.oldEndpoints)
 
 		// Now let's call appropriate handlers to get to state we want to be.
@@ -1233,7 +1233,7 @@ func TestUpdateEndpointsMap(t *testing.T) {
 				fp.updateEndpoints(prev, curr)
 			}
 		}
-		result := UpdateEndpointsMap(fp.endpointsMap, fp.endpointsChanges)
+		result := fp.endpointsMap.Update(fp.endpointsChanges)
 		newMap := fp.endpointsMap
 		compareEndpointsMaps(t, tci, newMap, tc.expectedResult)
 		if len(result.StaleEndpoints) != len(tc.expectedStaleEndpoints) {
@@ -1373,7 +1373,7 @@ func TestLastChangeTriggerTime(t *testing.T) {
 
 		tc.scenario(fp)
 
-		result := UpdateEndpointsMap(fp.endpointsMap, fp.endpointsChanges)
+		result := fp.endpointsMap.Update(fp.endpointsChanges)
 		got := result.LastChangeTriggerTimes
 		sortTimeSlice(got)
 		sortTimeSlice(tc.expected)

pkg/proxy/iptables/proxier.go

@@ -666,7 +666,7 @@ func (proxier *Proxier) syncProxyRules() {
 	// even if nothing changed in the meantime. In other words, callers are
 	// responsible for detecting no-op changes and not calling this function.
 	serviceUpdateResult := proxy.UpdateServiceMap(proxier.serviceMap, proxier.serviceChanges)
-	endpointUpdateResult := proxy.UpdateEndpointsMap(proxier.endpointsMap, proxier.endpointsChanges)
+	endpointUpdateResult := proxier.endpointsMap.Update(proxier.endpointsChanges)
 
 	staleServices := serviceUpdateResult.UDPStaleClusterIP
 	// merge stale services gathered from updateEndpointsMap

pkg/proxy/iptables/proxier_test.go

@@ -2185,7 +2185,7 @@ func Test_updateEndpointsMap(t *testing.T) {
 				fp.OnEndpointsAdd(tc.previousEndpoints[i])
 			}
 		}
-		proxy.UpdateEndpointsMap(fp.endpointsMap, fp.endpointsChanges)
+		fp.endpointsMap.Update(fp.endpointsChanges)
 		compareEndpointsMaps(t, tci, fp.endpointsMap, tc.oldEndpoints)
 
 		// Now let's call appropriate handlers to get to state we want to be.
@@ -2205,7 +2205,7 @@ func Test_updateEndpointsMap(t *testing.T) {
 				fp.OnEndpointsUpdate(prev, curr)
 			}
 		}
-		result := proxy.UpdateEndpointsMap(fp.endpointsMap, fp.endpointsChanges)
+		result := fp.endpointsMap.Update(fp.endpointsChanges)
 		newMap := fp.endpointsMap
 		compareEndpointsMaps(t, tci, newMap, tc.expectedResult)
 		if len(result.StaleEndpoints) != len(tc.expectedStaleEndpoints) {

pkg/proxy/ipvs/proxier.go

@@ -753,7 +753,7 @@ func (proxier *Proxier) syncProxyRules() {
 	// even if nothing changed in the meantime. In other words, callers are
 	// responsible for detecting no-op changes and not calling this function.
 	serviceUpdateResult := proxy.UpdateServiceMap(proxier.serviceMap, proxier.serviceChanges)
-	endpointUpdateResult := proxy.UpdateEndpointsMap(proxier.endpointsMap, proxier.endpointsChanges)
+	endpointUpdateResult := proxier.endpointsMap.Update(proxier.endpointsChanges)
 
 	staleServices := serviceUpdateResult.UDPStaleClusterIP
 	// merge stale services gathered from updateEndpointsMap

pkg/proxy/ipvs/proxier_test.go

@@ -2486,7 +2486,7 @@ func Test_updateEndpointsMap(t *testing.T) {
 				fp.OnEndpointsAdd(tc.previousEndpoints[i])
 			}
 		}
-		proxy.UpdateEndpointsMap(fp.endpointsMap, fp.endpointsChanges)
+		fp.endpointsMap.Update(fp.endpointsChanges)
 		compareEndpointsMaps(t, tci, fp.endpointsMap, tc.oldEndpoints)
 
 		// Now let's call appropriate handlers to get to state we want to be.
@@ -2506,7 +2506,7 @@ func Test_updateEndpointsMap(t *testing.T) {
 				fp.OnEndpointsUpdate(prev, curr)
 			}
 		}
-		result := proxy.UpdateEndpointsMap(fp.endpointsMap, fp.endpointsChanges)
+		result := fp.endpointsMap.Update(fp.endpointsChanges)
 		newMap := fp.endpointsMap
 		compareEndpointsMaps(t, tci, newMap, tc.expectedResult)
 		if len(result.StaleEndpoints) != len(tc.expectedStaleEndpoints) {