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metrics.go
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metrics.go
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// Copyright 2019-2020 Authors of Cilium
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package metrics
import (
"time"
"github.com/cilium/cilium/pkg/lock"
)
var (
// LastInteraction is the time at which the last apiserver interaction
// occurred
LastInteraction eventTimestamper
// LastSuccessInteraction is the time at which we have received a successful
// k8s apiserver reply (i.e. a response code 2xx or 4xx).
LastSuccessInteraction eventTimestamper
)
type eventTimestamper struct {
timestamp time.Time
lock lock.RWMutex
}
// Reset sets the timestamp to the current time
func (e *eventTimestamper) Reset() {
e.lock.Lock()
e.timestamp = time.Now()
e.lock.Unlock()
}
// Time returns the timestamp as set per Reset()
func (e *eventTimestamper) Time() time.Time {
e.lock.RLock()
t := e.timestamp
e.lock.RUnlock()
return t
}