github.com/braveheart12/just@v0.8.7/testutils/pulsarmodel/network.go (about) 1 /* 2 * Copyright 2019 Insolar Technologies 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 main 18 19 import ( 20 "math/rand" 21 "time" 22 ) 23 24 var network [10000]*NetworkNode 25 var commonBus = make(chan *SignalStatistic, 10000000) 26 27 type NetworkNode struct { 28 Neighbours map[int]struct{} 29 Channel chan *Signal 30 PreviousSignals map[int]struct{} 31 } 32 33 func (node *NetworkNode) Listen(current int) { 34 for signal := range node.Channel { 35 delay := time.Duration(rand.Intn(100)) * time.Millisecond 36 time.Sleep(delay) 37 commonBus <- &SignalStatistic{from: signal.from, to: current, id: signal.id, time: time.Now()} 38 39 if _, ok := node.PreviousSignals[signal.id]; !ok { 40 node.PreviousSignals[signal.id] = struct{}{} 41 for neighbour := range node.Neighbours { 42 if neighbour != signal.from { 43 network[neighbour].Channel <- &Signal{from: current, id: signal.id} 44 45 } 46 } 47 } 48 } 49 } 50 51 func pulse() { 52 id := 0 53 pulseFunc := func() { 54 id++ 55 nextPulsar := rand.Intn(len(network)) 56 network[nextPulsar].Channel <- &Signal{from: -1, id: id} 57 } 58 pulseFunc() 59 60 ticker := time.NewTicker(time.Second * 10) 61 go func() { 62 for range ticker.C { 63 pulseFunc() 64 } 65 }() 66 }