1// Copyright 2015 The etcd Authors 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15package raft 16 17import ( 18 pb "go.etcd.io/etcd/raft/raftpb" 19) 20 21func applyToStore(ents []pb.Entry) {} 22func sendMessages(msgs []pb.Message) {} 23func saveStateToDisk(st pb.HardState) {} 24func saveToDisk(ents []pb.Entry) {} 25 26func ExampleNode() { 27 c := &Config{} 28 n := StartNode(c, nil) 29 defer n.Stop() 30 31 // stuff to n happens in other goroutines 32 33 // the last known state 34 var prev pb.HardState 35 for { 36 // Ready blocks until there is new state ready. 37 rd := <-n.Ready() 38 if !isHardStateEqual(prev, rd.HardState) { 39 saveStateToDisk(rd.HardState) 40 prev = rd.HardState 41 } 42 43 saveToDisk(rd.Entries) 44 go applyToStore(rd.CommittedEntries) 45 sendMessages(rd.Messages) 46 } 47} 48