mirror of
https://github.com/etcd-io/etcd.git
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54 lines
1.3 KiB
Go
54 lines
1.3 KiB
Go
// Copyright 2022 The etcd Authors
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package identity
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import (
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"sync"
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)
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type LeaseIdStorage interface {
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LeaseId(int) int64
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AddLeaseId(int, int64)
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RemoveLeaseId(int)
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}
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func NewLeaseIdStorage() LeaseIdStorage {
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return &atomicClientId2LeaseIdMapper{m: map[int]int64{}}
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}
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type atomicClientId2LeaseIdMapper struct {
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sync.RWMutex
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// m is used to store clientId to leaseId mapping.
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m map[int]int64
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}
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func (lm *atomicClientId2LeaseIdMapper) LeaseId(clientId int) int64 {
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lm.RLock()
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defer lm.RUnlock()
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return lm.m[clientId]
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}
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func (lm *atomicClientId2LeaseIdMapper) AddLeaseId(clientId int, leaseId int64) {
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lm.Lock()
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defer lm.Unlock()
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lm.m[clientId] = leaseId
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}
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func (lm *atomicClientId2LeaseIdMapper) RemoveLeaseId(clientId int) {
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lm.Lock()
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defer lm.Unlock()
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delete(lm.m, clientId)
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}
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