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began turning attention to cache.Controller

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Kubernetes-commit: 72fa714d636dc2f614b251c78cd8297f7754b333
This commit is contained in:
Mike Spreitzer
2020-01-06 15:59:11 -05:00
committed by Kubernetes Publisher
parent 261b8a00e4
commit db5618cb1f
3 changed files with 53 additions and 31 deletions
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22
tools/cache/shared_informer.go vendored
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@@ -168,21 +168,21 @@ type SharedIndexInformer interface {
}
// NewSharedInformer creates a new instance for the listwatcher.
func NewSharedInformer(lw ListerWatcher, objOfWatchedType runtime.Object, resyncPeriod time.Duration) SharedInformer {
return NewSharedIndexInformer(lw, objOfWatchedType, resyncPeriod, Indexers{})
func NewSharedInformer(lw ListerWatcher, exampleObject runtime.Object, resyncPeriod time.Duration) SharedInformer {
return NewSharedIndexInformer(lw, exampleObject, resyncPeriod, Indexers{})
}
// NewSharedIndexInformer creates a new instance for the listwatcher.
func NewSharedIndexInformer(lw ListerWatcher, objOfWatchedType runtime.Object, defaultEventHandlerResyncPeriod time.Duration, indexers Indexers) SharedIndexInformer {
func NewSharedIndexInformer(lw ListerWatcher, exampleObject runtime.Object, defaultEventHandlerResyncPeriod time.Duration, indexers Indexers) SharedIndexInformer {
realClock := &clock.RealClock{}
sharedIndexInformer := &sharedIndexInformer{
processor: &sharedProcessor{clock: realClock},
indexer: NewIndexer(DeletionHandlingMetaNamespaceKeyFunc, indexers),
listerWatcher: lw,
objectType: objOfWatchedType,
objectType: exampleObject,
resyncCheckPeriod: defaultEventHandlerResyncPeriod,
defaultEventHandlerResyncPeriod: defaultEventHandlerResyncPeriod,
cacheMutationDetector: NewCacheMutationDetector(fmt.Sprintf("%T", objOfWatchedType)),
cacheMutationDetector: NewCacheMutationDetector(fmt.Sprintf("%T", exampleObject)),
clock: realClock,
}
return sharedIndexInformer
@@ -245,6 +245,11 @@ type sharedIndexInformer struct {
cacheMutationDetector MutationDetector
listerWatcher ListerWatcher
// objectType is an example object of the type this informer is
// expected to handle. Only the type needs to be right, except
// that when that is `unstructured.Unstructured` the object's
// `"apiVersion"` must also be right.
objectType runtime.Object
// resyncCheckPeriod is how often we want the reflector's resync timer to fire so it can call
@@ -609,9 +614,10 @@ type processorListener struct {
// full resync from the shared informer, but modified by two
// adjustments. One is imposing a lower bound,
// `minimumResyncPeriod`. The other is another lower bound, the
// sharedProcessor's `resyncCheckPeriod`, that is imposed in
// AddEventHandlerWithResyncPeriod invocations made after the
// sharedProcessor starts.
// sharedProcessor's `resyncCheckPeriod`, that is imposed (a) only
// in AddEventHandlerWithResyncPeriod invocations made after the
// sharedProcessor starts and (b) only if the informer does
// resyncs at all.
requestedResyncPeriod time.Duration
// resyncPeriod is the threshold that will be used in the logic
// for this listener. This value differs from