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remove informational informer methods again

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Kubernetes-commit: f52f4a8e3045fd3eeba0315a347ed653012cd5c5
This commit is contained in:
Alexander Zielenski
2022-06-16 00:09:20 -07:00
committed by Kubernetes Publisher
parent ecdc8bf729
commit b3a61c6731
2 changed files with 36 additions and 53 deletions
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33
tools/cache/shared_informer.go vendored
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@@ -132,16 +132,6 @@ import (
// state, except that its ResourceVersion is replaced with a
// ResourceVersion in which the object is actually absent.
//
// The informational methods (EventHandlerCount, IsStopped, IsStarted)
// are intended to be used to manage informers in any upper informer
// management layer for creating and destroying informers on-the fly when
// adding or removing handlers.
// Beware of race conditions: Such a layer must hide the basic informer
// objects from its users and offer a closed *synchronized* view for informers.
// Although these informational methods are synchronized each, in
// sequences the state queried first might have been changed before
// calling the next method, if other callers (or the stop channel)
// are able to interact with the informer interface in parallel.
type SharedInformer interface {
// AddEventHandler adds an event handler to the shared informer using the shared informer's resync
// period. Events to a single handler are delivered sequentially, but there is no coordination
@@ -222,16 +212,10 @@ type SharedInformer interface {
// data races.
SetTransform(handler TransformFunc) error
// EventHandlerCount return the number of actually registered
// event handlers.
EventHandlerCount() int
// IsStopped reports whether the informer has already been stopped.
// Adding event handlers to already stopped informers is not possible.
// An informer already stopped will never be started again.
IsStopped() bool
// IsStarted reports whether the informer has already been started
IsStarted() bool
}
// ResourceEventHandlerHandle is a handle returned by the
@@ -667,13 +651,6 @@ func (s *sharedIndexInformer) OnDelete(old interface{}) {
s.processor.distribute(deleteNotification{oldObj: old}, false)
}
// IsStarted reports whether the informer has already been started
func (s *sharedIndexInformer) IsStarted() bool {
s.startedLock.Lock()
defer s.startedLock.Unlock()
return s.started
}
// IsStopped reports whether the informer has already been stopped
func (s *sharedIndexInformer) IsStopped() bool {
s.startedLock.Lock()
@@ -681,14 +658,6 @@ func (s *sharedIndexInformer) IsStopped() bool {
return s.stopped
}
// EventHandlerCount reports whether the informer still has registered
// event handlers
func (s *sharedIndexInformer) EventHandlerCount() int {
s.startedLock.Lock()
defer s.startedLock.Unlock()
return len(s.processor.listeners)
}
// RemoveEventHandlerByHandle tries to remove a formerly added event handler by its
// handle returned for its registration.
// If a handler has been added multiple times, only the registration for the