func main() {
var dir string
if len(os.Args) > 1 {
dir = os.Args[1]
} else {
dir = utils.BitcoinHome() + "gocoin" + string(os.PathSeparator) + "btcnet" + string(os.PathSeparator) + "peers3"
}
db, er := qdb.NewDB(dir, true)
if er != nil {
println(er.Error())
os.Exit(1)
}
println(db.Count(), "peers in databse", dir)
if db.Count() == 0 {
return
}
tmp := make(manyPeers, db.Count())
cnt := 0
db.Browse(func(k qdb.KeyType, v []byte) uint32 {
np := utils.NewPeer(v)
if !utils.ValidIp4(np.Ip4[:]) {
return 0
}
if cnt < len(tmp) {
tmp[cnt] = np
cnt++
}
return 0
})
sort.Sort(tmp[:cnt])
for cnt = 0; cnt < len(tmp) && cnt < 25; cnt++ {
ad := tmp[cnt]
fmt.Printf("%3d) %16s %5d - seen %5d min ago\n", cnt+1,
fmt.Sprintf("%d.%d.%d.%d", ad.Ip4[0], ad.Ip4[1], ad.Ip4[2], ad.Ip4[3]),
ad.Port, (time.Now().Unix()-int64(ad.Time))/60)
}
}
func parse_command_line() {
GocoinHomeDir = utils.BitcoinHome() + "gocoin" + string(os.PathSeparator)
flag.BoolVar(&OnlyStoreBlocks, "b", false, "Only store blocks, without parsing them into UTXO database")
flag.BoolVar(&Testnet, "t", false, "Use Testnet3")
flag.StringVar(&GocoinHomeDir, "d", GocoinHomeDir, "Specify the home directory")
flag.StringVar(&LastTrustedBlock, "trust", "auto", "Specify the highest trusted block hash (use \"all\" for all)")
flag.StringVar(&SeedNode, "s", "", "Specify IP of the node to fetch headers from")
flag.UintVar(&MaxNetworkConns, "n", 20, "Set maximum number of network connections for chain download")
flag.IntVar(&GCPerc, "g", 0, "Set waste percentage treshold for Go's garbage collector")
flag.BoolVar(&DoThePings, "p", false, "Execute the pings procedure first to find the fastest peers")
flag.UintVar(&MemForBlocks, "m", 64, "Set memory buffer for cached block data (value in megabytes)")
var help bool
flag.BoolVar(&help, "h", false, "Show this help")
flag.Parse()
if help {
flag.PrintDefaults()
os.Exit(0)
}
MemForBlocks <<= 20 // Convert megabytes to bytes
}
func main() {
if len(os.Args) < 2 {
fmt.Println("Specify at least one parameter - a path to the blk0000?.dat files.")
fmt.Println("By default it should be:", utils.BitcoinHome()+"blocks")
fmt.Println()
fmt.Println("If you specify a second parameter, that's where output data will be stored.")
fmt.Println("Otherwise the output data will go to Gocoin's default data folder.")
return
}
BtcRootDir = RemoveLastSlash(os.Args[1])
fn := BtcRootDir + string(os.PathSeparator) + "blk00000.dat"
fmt.Println("Looking for file", fn, "...")
f, e := os.Open(fn)
if e != nil {
println(e.Error())
os.Exit(1)
}
_, e = f.Read(Magic[:])
f.Close()
if e != nil {
println(e.Error())
os.Exit(1)
}
if len(os.Args) > 2 {
GocoinHomeDir = RemoveLastSlash(os.Args[2]) + string(os.PathSeparator)
} else {
GocoinHomeDir = utils.BitcoinHome() + "gocoin" + string(os.PathSeparator)
}
if Magic == [4]byte{0x0B, 0x11, 0x09, 0x07} {
// testnet3
fmt.Println("There are Testnet3 blocks")
GenesisBlock = btc.NewUint256FromString("000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943")
GocoinHomeDir += "tstnet" + string(os.PathSeparator)
} else if Magic == [4]byte{0xF9, 0xBE, 0xB4, 0xD9} {
fmt.Println("There are valid Bitcoin blocks")
GenesisBlock = btc.NewUint256FromString("000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f")
GocoinHomeDir += "btcnet" + string(os.PathSeparator)
} else {
println("blk00000.dat has an unexpected magic")
os.Exit(1)
}
fmt.Println("Importing blockchain data into", GocoinHomeDir, "...")
if exists(GocoinHomeDir+"blockchain.dat") ||
exists(GocoinHomeDir+"blockchain.idx") ||
exists(GocoinHomeDir+"unspent") {
println("Destination folder contains some database files.")
println("Either move them somewhere else or delete manually.")
println("None of the following files/folders must exist before you proceed:")
println(" *", GocoinHomeDir+"blockchain.dat")
println(" *", GocoinHomeDir+"blockchain.idx")
println(" *", GocoinHomeDir+"unspent")
os.Exit(1)
}
import_blockchain(BtcRootDir)
}
func host_init() {
var e error
BtcRootDir := utils.BitcoinHome()
if common.CFG.Datadir == "" {
common.GocoinHomeDir = BtcRootDir + "gocoin" + string(os.PathSeparator)
} else {
common.GocoinHomeDir = common.CFG.Datadir + string(os.PathSeparator)
}
common.Testnet = common.CFG.Testnet // So chaging this value would will only affect the behaviour after restart
if common.CFG.Testnet { // testnet3
common.GenesisBlock = btc.NewUint256FromString("000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943")
common.Magic = [4]byte{0x0B, 0x11, 0x09, 0x07}
common.GocoinHomeDir += "tstnet" + string(os.PathSeparator)
BtcRootDir += "testnet3" + string(os.PathSeparator)
network.AlertPubKey, _ = hex.DecodeString("04302390343f91cc401d56d68b123028bf52e5fca1939df127f63c6467cdf9c8e2c14b61104cf817d0b780da337893ecc4aaff1309e536162dabbdb45200ca2b0a")
common.MaxPeersNeeded = 100
} else {
common.GenesisBlock = btc.NewUint256FromString("000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f")
common.Magic = [4]byte{0xF9, 0xBE, 0xB4, 0xD9}
common.GocoinHomeDir += "btcnet" + string(os.PathSeparator)
network.AlertPubKey, _ = hex.DecodeString("04fc9702847840aaf195de8442ebecedf5b095cdbb9bc716bda9110971b28a49e0ead8564ff0db22209e0374782c093bb899692d524e9d6a6956e7c5ecbcd68284")
common.MaxPeersNeeded = 1000
}
// Lock the folder
os.MkdirAll(common.GocoinHomeDir, 0770)
os.MkdirAll(common.GocoinHomeDir+"wallet", 0770)
utils.LockDatabaseDir(common.GocoinHomeDir)
fi, e := os.Stat(common.GocoinHomeDir + "blockchain.dat")
if e != nil {
os.RemoveAll(common.GocoinHomeDir)
fmt.Println("You seem to be running Gocoin for the fist time on this PC")
fi, e = os.Stat(BtcRootDir + "blocks/blk00000.dat")
if e == nil && fi.Size() > 1024*1024 {
fmt.Println("There is a database from Satoshi client on your disk...")
if textui.AskYesNo("Do you want to import this database into Gocoin?") {
import_blockchain(BtcRootDir + "blocks")
}
}
}
fmt.Println("Opening blockchain... (Ctrl-C to interrupt)")
__exit := make(chan bool)
__done := make(chan bool)
go func() {
for {
select {
case s := <-killchan:
fmt.Println(s)
btc.AbortNow = true
case <-__exit:
__done <- true
return
}
}
}()
sta := time.Now().UnixNano()
common.BlockChain = btc.NewChain(common.GocoinHomeDir, common.GenesisBlock, common.FLAG.Rescan)
sto := time.Now().UnixNano()
if btc.AbortNow {
fmt.Printf("Blockchain opening aborted after %.3f seconds\n", float64(sto-sta)/1e9)
common.BlockChain.Close()
utils.UnlockDatabaseDir()
os.Exit(1)
}
fmt.Printf("Blockchain open in %.3f seconds\n", float64(sto-sta)/1e9)
common.BlockChain.Unspent.SetTxNotify(wallet.TxNotify)
common.StartTime = time.Now()
__exit <- true
_ = <-__done
}