mirror of https://github.com/k3s-io/k3s
60 lines
1.8 KiB
Go
60 lines
1.8 KiB
Go
/*
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Copyright 2015 Google Inc. All rights reserved.
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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 container
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import "sync"
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// ReadinessManager maintains the readiness information(probe results) of
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// containers over time to allow for implementation of health thresholds.
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// This manager is thread-safe, no locks are necessary for the caller.
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type ReadinessManager struct {
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// guards states
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sync.RWMutex
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// TODO(yifan): To use strong type.
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states map[string]bool
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}
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// NewReadinessManager creates ane returns a readiness manager with empty
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// contents.
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func NewReadinessManager() *ReadinessManager {
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return &ReadinessManager{states: make(map[string]bool)}
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}
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// GetReadiness returns the readiness value for the container with the given ID.
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// If the readiness value is found, returns it.
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// If the readiness is not found, returns false.
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func (r *ReadinessManager) GetReadiness(id string) bool {
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r.RLock()
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defer r.RUnlock()
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state, found := r.states[id]
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return state && found
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}
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// SetReadiness sets the readiness value for the container with the given ID.
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func (r *ReadinessManager) SetReadiness(id string, value bool) {
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r.Lock()
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defer r.Unlock()
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r.states[id] = value
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}
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// RemoveReadiness clears the readiness value for the container with the given ID.
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func (r *ReadinessManager) RemoveReadiness(id string) {
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r.Lock()
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defer r.Unlock()
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delete(r.states, id)
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}
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