Lachesis.md

Go Ethereum over lachesis

Note

Repo is the github.com/ethereum/go-ethereum fork. It should be in the same local path as original: $GOPATH/src/github.com/ethereum/.

Aims

Ethereum over lachesis network and consensus. Full ethereum stack and lachesis performance.

Demo

• start lachesis test net first: cd $GOPATH/src/github.com/Fantom-foundation/go-lachesis/demo && make start;
• change dir: cd lachesis/demo;
• make geth docker image and run 2 containers: make && make start;
• try to send tx: ./20.txn.sh;
• try to get balanses: ./10.balances.sh;
• stop docker containers: make stop;
• stop lachesis test net;

Changes

• Rename p2p.Server to p2p.p2pServer;
• Create p2p/interface.go (p2p.ServerInterface, p2p.Server struct, p2p.p2pServer's additionals methods, p2p.LachesisAdapter interface);
• Create eth/lachesis_adapter.go (p2p.LachesisAdapter implementation);
• Add p2p.Config.LachesisAdapter LachesisAdapter;
• Create LachesisAddrFlag in cmd/utils/flags.go:

      LachesisAddrFlag = cli.StringFlag{
  	Name:  "lachesis",
  	Usage: "lachesis-node address",
  }
  . . .
  func setListenAddress(ctx *cli.Context, cfg *p2p.Config) {
  	. . .
  	if ctx.GlobalIsSet(LachesisAddrFlag.Name) {
  		cfg.LachesisAdapter = eth.NewLachesisAdapter(ctx.GlobalString(LachesisAddrFlag.Name), cfg.Logger)
  	}
  }
  

• Append utils.LachesisAddrFlag to:
  • nodeFlags in cmd/geth/main.go;
  • AppHelpFlagGroups in cmd/geth/usage.go;
  • app.Flags in cmd/swarm/main.go;
• Make node.Node create .server according to .serverConfig.LachesisAdapter and use p2p.Server.AddProtocols() at .Start():

  var running *p2p.Server
  if n.serverConfig.LachesisAdapter == nil {
  	running = p2p.NewServer(n.serverConfig)
  	n.log.Info("Starting peer-to-peer node", "instance", n.serverConfig.Name)
  } else {
  	running = lachesis.NewServer(n.serverConfig)
  	n.log.Info("Using lachesis node", "address", n.serverConfig.LachesisAdapter.Address())
  }
  . . .
  for _, service := range services {
  	running.AddProtocols(service.Protocols()...)
  }
  

• Create lachesis/ package;

TODO:

• make ethereum blocks from lachesis commits at eth.lachesisAdapter without mining;
• switch lachesis/demo/docker/Dockerfile.geth* from local to origin "github.com/Fantom-foundation/go-lachesis" when stable;