change event count type

event count type had better to be uint.

staging/src/k8s.io/client-go/tools/record/events_cache.go

@@ -110,10 +110,10 @@ type EventAggregator struct {
 	messageFunc EventAggregatorMessageFunc
 
 	// The maximum number of events in the specified interval before aggregation occurs
-	maxEvents int
+	maxEvents uint
 
 	// The amount of time in seconds that must transpire since the last occurrence of a similar event before it's considered new
-	maxIntervalInSeconds int
+	maxIntervalInSeconds uint
 
 	// clock is used to allow for testing over a time interval
 	clock clock.Clock
@@ -126,8 +126,8 @@ func NewEventAggregator(lruCacheSize int, keyFunc EventAggregatorKeyFunc, messag
 		cache:                lru.New(lruCacheSize),
 		keyFunc:              keyFunc,
 		messageFunc:          messageFunc,
-		maxEvents:            maxEvents,
-		maxIntervalInSeconds: maxIntervalInSeconds,
+		maxEvents:            uint(maxEvents),
+		maxIntervalInSeconds: uint(maxIntervalInSeconds),
 		clock:                clock,
 	}
 }
@@ -163,7 +163,7 @@ func (e *EventAggregator) EventAggregate(newEvent *v1.Event) (*v1.Event, error)
 	record.lastTimestamp = now
 	e.cache.Add(aggregateKey, record)
 
-	if record.localKeys.Len() < e.maxEvents {
+	if uint(record.localKeys.Len()) < e.maxEvents {
 		return newEvent, nil
 	}
 
@@ -191,7 +191,7 @@ func (e *EventAggregator) EventAggregate(newEvent *v1.Event) (*v1.Event, error)
 // eventLog records data about when an event was observed
 type eventLog struct {
 	// The number of times the event has occurred since first occurrence.
-	count int
+	count uint
 
 	// The time at which the event was first recorded.
 	firstTimestamp metav1.Time
@@ -251,7 +251,7 @@ func (e *eventLogger) eventObserve(newEvent *v1.Event) (*v1.Event, []byte, error
 	e.cache.Add(
 		key,
 		eventLog{
-			count:           int(event.Count),
+			count:           uint(event.Count),
 			firstTimestamp:  event.FirstTimestamp,
 			name:            event.Name,
 			resourceVersion: event.ResourceVersion,
@@ -269,7 +269,7 @@ func (e *eventLogger) updateState(event *v1.Event) {
 	e.cache.Add(
 		key,
 		eventLog{
-			count:           int(event.Count),
+			count:           uint(event.Count),
 			firstTimestamp:  event.FirstTimestamp,
 			name:            event.Name,
 			resourceVersion: event.ResourceVersion,