mirror of
https://github.com/ceph/ceph-csi.git
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67 lines
1.7 KiB
Go
67 lines
1.7 KiB
Go
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/*
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Copyright 2023 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package flowcontrol
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import (
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"sync"
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)
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// MaxSeatsTracker is used to track max seats allocatable per priority level from the work estimator
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type MaxSeatsTracker interface {
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// GetMaxSeats returns the maximum seats a request should occupy for a given priority level.
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GetMaxSeats(priorityLevelName string) uint64
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// SetMaxSeats configures max seats for a priority level.
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SetMaxSeats(priorityLevelName string, maxSeats uint64)
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// ForgetPriorityLevel removes max seats tracking for a priority level.
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ForgetPriorityLevel(priorityLevelName string)
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}
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type maxSeatsTracker struct {
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sync.RWMutex
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maxSeats map[string]uint64
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}
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func NewMaxSeatsTracker() MaxSeatsTracker {
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return &maxSeatsTracker{
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maxSeats: make(map[string]uint64),
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}
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}
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func (m *maxSeatsTracker) GetMaxSeats(plName string) uint64 {
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m.RLock()
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defer m.RUnlock()
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return m.maxSeats[plName]
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}
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func (m *maxSeatsTracker) SetMaxSeats(plName string, maxSeats uint64) {
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m.Lock()
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defer m.Unlock()
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m.maxSeats[plName] = maxSeats
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}
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func (m *maxSeatsTracker) ForgetPriorityLevel(plName string) {
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m.Lock()
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defer m.Unlock()
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delete(m.maxSeats, plName)
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}
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