mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
49 lines
1.4 KiB
Go
49 lines
1.4 KiB
Go
// Copyright 2022 The etcd Authors
|
|
//
|
|
// 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 identity
|
|
|
|
import "sync/atomic"
|
|
|
|
type Provider interface {
|
|
// NewStreamId returns an integer starting from zero to make it render nicely by porcupine visualization.
|
|
NewStreamId() int
|
|
// NewRequestId returns unique identification used to make write requests unique.
|
|
NewRequestId() int
|
|
// NewClientId returns unique identification for client and their reports.
|
|
NewClientId() int
|
|
}
|
|
|
|
func NewIdProvider() Provider {
|
|
return &atomicProvider{}
|
|
}
|
|
|
|
type atomicProvider struct {
|
|
streamId atomic.Int64
|
|
requestId atomic.Int64
|
|
clientId atomic.Int64
|
|
}
|
|
|
|
func (id *atomicProvider) NewStreamId() int {
|
|
return int(id.streamId.Add(1) - 1)
|
|
}
|
|
|
|
func (id *atomicProvider) NewRequestId() int {
|
|
return int(id.requestId.Add(1))
|
|
}
|
|
|
|
func (id *atomicProvider) NewClientId() int {
|
|
return int(id.clientId.Add(1))
|
|
}
|