github.com/kubewharf/katalyst-core@v0.5.3/pkg/util/process/endpoint.go (about) 1 /* 2 Copyright 2022 The Katalyst Authors. 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 17 package process 18 19 import ( 20 "sync" 21 "time" 22 ) 23 24 const ( 25 endpointStopGracePeriod = time.Duration(5) * time.Minute 26 ) 27 28 type StopControl struct { 29 stopTime time.Time 30 sync.RWMutex 31 } 32 33 func (sc *StopControl) Stop() { 34 if sc == nil { 35 return 36 } 37 38 sc.Lock() 39 defer sc.Unlock() 40 sc.stopTime = time.Now() 41 } 42 43 func (sc *StopControl) IsStopped() bool { 44 if sc == nil { 45 return true 46 } 47 48 sc.RLock() 49 defer sc.RUnlock() 50 return !sc.stopTime.IsZero() 51 } 52 53 func (sc *StopControl) StopGracePeriodExpired() bool { 54 if sc == nil { 55 return true 56 } 57 58 sc.RLock() 59 defer sc.RUnlock() 60 return !sc.stopTime.IsZero() && time.Since(sc.stopTime) > endpointStopGracePeriod 61 } 62 63 func NewStopControl(stopTime time.Time) *StopControl { 64 return &StopControl{ 65 stopTime: stopTime, 66 } 67 }