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Expanded comment on FairQueuingSystem::DoOnEmpty

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Mike Spreitzer
2019-07-17 01:49:52 -04:00
parent 1c8f89b554
commit c79ec2fcf3
1 changed files with 7 additions and 1 deletions
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8
staging/src/k8s.io/apiserver/pkg/server/filters/reqmgmt.go
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@@ -68,7 +68,13 @@ type FairQueuingSystem interface {
SetRequestWaitLimit(time.Duration)
// DoOnEmpty records a function to be called when all the queues
// have no requests waiting nor executing
// have no requests waiting nor executing. The filter uses this
// for a priority level that has become undesired, setting a
// callback that will actually remove the priority level by
// establishing a new RMState whose priorityLevelStates map lacks
// that entry. If the priority level becomes desired again before
// this is called, the filter cancels by calling `DoOnEmpty(nil)`.
// The callback is invoked with no mutexes locked.
DoOnEmpty(func())
// Wait, in the happy case, shuffle shards the given request into