// Run implements sda.Simulation interface func (e *Simulation) Run(sdaConf *sda.SimulationConfig) error { log.Lvl2("Naive Tree Simulation starting with: Rounds=", e.Rounds) server := NewNtreeServer(e.Blocksize) for round := 0; round < e.Rounds; round++ { client := byzcoin.NewClient(server) err := client.StartClientSimulation(blockchain.GetBlockDir(), e.Blocksize) if err != nil { log.Error("ClientSimulation:", err) } log.Lvl1("Starting round", round) // create an empty node node := sdaConf.Overlay.NewTreeNodeInstanceFromProtoName(sdaConf.Tree, "ByzCoinNtree") // instantiate a byzcoin protocol rComplete := monitor.NewTimeMeasure("round") pi, err := server.Instantiate(node) if err != nil { return err } sdaConf.Overlay.RegisterProtocolInstance(pi) nt := pi.(*Ntree) // Register when the protocol is finished (all the nodes have finished) done := make(chan bool) nt.RegisterOnDone(func(sig *NtreeSignature) { rComplete.Record() log.Lvl3("Done") done <- true }) go func() { if err := nt.Start(); err != nil { log.Error("Couldn't start ntree protocol:", err) } }() // wait for the end <-done log.Lvl3("Round", round, "finished") } return nil }
// Run implements sda.Simulation interface func (e *Simulation) Run(sdaConf *sda.SimulationConfig) error { log.Lvl2("Simulation starting with: Rounds=", e.Rounds) server := NewByzCoinServer(e.Blocksize, e.TimeoutMs, e.Fail) pi, err := sdaConf.Overlay.CreateProtocolSDA(sdaConf.Tree, "Broadcast") if err != nil { return err } proto, _ := pi.(*manage.Broadcast) // channel to notify we are done broadDone := make(chan bool) proto.RegisterOnDone(func() { broadDone <- true }) // ignore error on purpose: Broadcast.Start() always returns nil _ = proto.Start() // wait <-broadDone for round := 0; round < e.Rounds; round++ { client := NewClient(server) err := client.StartClientSimulation(blockchain.GetBlockDir(), e.Blocksize) if err != nil { log.Error("Error in ClientSimulation:", err) return err } log.Lvl1("Starting round", round) // create an empty node tni := sdaConf.Overlay.NewTreeNodeInstanceFromProtoName(sdaConf.Tree, "ByzCoin") if err != nil { return err } // instantiate a byzcoin protocol rComplete := monitor.NewTimeMeasure("round") pi, err := server.Instantiate(tni) if err != nil { return err } sdaConf.Overlay.RegisterProtocolInstance(pi) bz := pi.(*ByzCoin) // Register callback for the generation of the signature ! bz.RegisterOnSignatureDone(func(sig *BlockSignature) { rComplete.Record() if err := verifyBlockSignature(tni.Suite(), tni.Roster().Aggregate, sig); err != nil { log.Error("Round", round, "failed:", err) } else { log.Lvl2("Round", round, "success") } }) // Register when the protocol is finished (all the nodes have finished) done := make(chan bool) bz.RegisterOnDone(func() { done <- true }) if e.Fail > 0 { go func() { err := bz.startAnnouncementPrepare() if err != nil { log.Error("Error while starting "+ "announcment prepare:", err) } }() // do not run bz.startAnnouncementCommit() } else { go func() { if err := bz.Start(); err != nil { log.Error("Couldn't start protocol", err) } }() } // wait for the end <-done log.Lvl3("Round", round, "finished") } return nil }
// Run runs the simulation func (e *Simulation) Run(sdaConf *sda.SimulationConfig) error { doneChan := make(chan bool) doneCB := func() { doneChan <- true } // FIXME use client instead dir := blockchain.GetBlockDir() parser, err := blockchain.NewParser(dir, magicNum) if err != nil { log.Error("Error: Couldn't parse blocks in", dir) return err } transactions, err := parser.Parse(0, e.Blocksize) if err != nil { log.Error("Error while parsing transactions", err) return err } // FIXME c&p from byzcoin.go trlist := blockchain.NewTransactionList(transactions, len(transactions)) header := blockchain.NewHeader(trlist, "", "") trblock := blockchain.NewTrBlock(trlist, header) // Here we first setup the N^2 connections with a broadcast protocol pi, err := sdaConf.Overlay.CreateProtocolSDA(sdaConf.Tree, "Broadcast") if err != nil { log.Error(err) } proto := pi.(*manage.Broadcast) // channel to notify we are done broadDone := make(chan bool) proto.RegisterOnDone(func() { broadDone <- true }) // ignore error on purpose: Start always returns nil _ = proto.Start() // wait <-broadDone log.Lvl3("Simulation can start!") for round := 0; round < e.Rounds; round++ { log.Lvl1("Starting round", round) p, err := sdaConf.Overlay.CreateProtocolSDA(sdaConf.Tree, "ByzCoinPBFT") if err != nil { return err } proto := p.(*Protocol) proto.trBlock = trblock proto.onDoneCB = doneCB r := monitor.NewTimeMeasure("round_pbft") err = proto.Start() if err != nil { log.Error("Couldn't start PrePrepare") return err } // wait for finishing pbft: <-doneChan r.Record() log.Lvl2("Finished round", round) } return nil }