path: root/ethereum.go

package main

import (
    "encoding/hex"
    "flag"
    "fmt"
    "github.com/ethereum/eth-go"
    "github.com/ethereum/ethchain-go"
    "github.com/ethereum/ethutil-go"
    "log"
    "os"
    "os/signal"
    "runtime"
)

const Debug = true

var StartConsole bool
var StartMining bool
var UseUPnP bool
var OutboundPort string

func Init() {
    flag.BoolVar(&StartConsole, "c", false, "debug and testing console")
    flag.BoolVar(&StartMining, "m", false, "start dagger mining")
    flag.BoolVar(&UseUPnP, "upnp", false, "enable UPnP support")
    flag.StringVar(&OutboundPort, "port", "30303", "listening port")

    flag.Parse()
}

// Register interrupt handlers so we can stop the ethereum
func RegisterInterupts(s *eth.Ethereum) {
    // Buffered chan of one is enough
    c := make(chan os.Signal, 1)
    // Notify about interrupts for now
    signal.Notify(c, os.Interrupt)
    go func() {
        for sig := range c {
            fmt.Printf("Shutting down (%v) ... \n", sig)

            s.Stop()
        }
    }()
}

func main() {
    runtime.GOMAXPROCS(runtime.NumCPU())
    Init()

    ethchain.InitFees()
    ethutil.ReadConfig()

    log.Printf("Starting Ethereum v%s\n", ethutil.Config.Ver)

    // Instantiated a eth stack
    ethereum, err := eth.New(eth.CapDefault, UseUPnP)
    if err != nil {
        log.Println(err)
        return
    }

    if StartConsole {
        err := os.Mkdir(ethutil.Config.ExecPath, os.ModePerm)
        // Error is OK if the error is ErrExist
        if err != nil && !os.IsExist(err) {
            log.Panic("Unable to create EXECPATH:", err)
        }

        console := NewConsole(ethereum)
        go console.Start()
    }

    RegisterInterupts(ethereum)

    ethereum.Start()

    if StartMining {
        log.Printf("Dev Test Mining started...\n")

        // Fake block mining. It broadcasts a new block every 5 seconds
        go func() {
            pow := &ethchain.EasyPow{}
            addr, _ := hex.DecodeString("82c3b0b72cf62f1a9ce97c64da8072efa28225d8")

            for {
                //time.Sleep(blockTime * time.Second)

                txs := ethereum.TxPool.Flush()
                block := ethereum.BlockManager.BlockChain().NewBlock(addr, txs)

                block.Nonce = pow.Search(block)

                err := ethereum.BlockManager.ProcessBlockWithState(block, block.State())
                if err != nil {
                    log.Println(err)
                } else {
                    //log.Println("nonce found:", nonce)
                    log.Println("\n+++++++ MINED BLK +++++++\n", block.String())
                }
                //os.Exit(1)

                /*


                    block := ethchain.CreateBlock(
                        ethereum.BlockManager.BlockChain().CurrentBlock.State().Root,
                        ethereum.BlockManager.BlockChain().LastBlockHash,
                        "123",
                        big.NewInt(1),
                        big.NewInt(1),
                        "",
                        txs)
                    err := ethereum.BlockManager.ProcessBlockWithState(block, block.State())
                    if err != nil {
                        log.Println(err)
                    } else {
                        //log.Println("\n+++++++ MINED BLK +++++++\n", block.String())
                    }
                */
            }
        }()
    }

    // Wait for shutdown
    ethereum.WaitForShutdown()
}