Exemplo n.º 1
0
func host_init() {
	var e error
	BtcRootDir := sys.BitcoinHome()
	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 += common.DataSubdir() + string(os.PathSeparator)
		BtcRootDir += "testnet3" + string(os.PathSeparator)
		common.MaxPeersNeeded = 2000
	} else {
		common.GenesisBlock = btc.NewUint256FromString("000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f")
		common.Magic = [4]byte{0xF9, 0xBE, 0xB4, 0xD9}
		common.GocoinHomeDir += common.DataSubdir() + string(os.PathSeparator)
		common.MaxPeersNeeded = 5000
	}

	// Lock the folder
	os.MkdirAll(common.GocoinHomeDir, 0770)
	sys.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("Loading UTXO-db and P2SH/P2KH outputs of", btc.UintToBtc(common.AllBalMinVal), "BTC or more")

	__exit := make(chan bool)
	__done := make(chan bool)
	go func() {
		for {
			select {
			case s := <-killchan:
				fmt.Println(s)
				chain.AbortNow = true
			case <-__exit:
				__done <- true
				return
			}
		}
	}()

	ext := &chain.NewChanOpts{NotifyTxAdd: wallet.TxNotifyAdd,
		NotifyTxDel: wallet.TxNotifyDel, LoadWalk: wallet.NewUTXO,
		UTXOVolatileMode:     common.FLAG.VolatileUTXO,
		UndoBlocks:           common.FLAG.UndoBlocks,
		SetBlocksDBCacheSize: true, BlocksDBCacheSize: int(common.CFG.Memory.MaxCachedBlocks)}

	sta := time.Now().UnixNano()
	common.BlockChain = chain.NewChainExt(common.GocoinHomeDir, common.GenesisBlock, common.FLAG.Rescan, ext)
	sto := time.Now().UnixNano()
	if chain.AbortNow {
		fmt.Printf("Blockchain opening aborted after %.3f seconds\n", float64(sto-sta)/1e9)
		common.BlockChain.Close()
		sys.UnlockDatabaseDir()
		os.Exit(1)
	}
	al, sy := sys.MemUsed()
	fmt.Printf("Blockchain open in %.3f seconds.  %d + %d MB of RAM used (%d)\n",
		float64(sto-sta)/1e9, al>>20, qdb.ExtraMemoryConsumed>>20, sy>>20)
	common.StartTime = time.Now()
	__exit <- true
	_ = <-__done

}
Exemplo n.º 2
0
func host_init() {
	var e error
	BtcRootDir := sys.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)
	sys.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")
			}
		}
	}

	// cache the current balance of all the addresses from the current wallet files
	wallet.LoadAllWallets()

	fmt.Println("Loading UTXO database while checking balance of", len(wallet.MyWallet.Addrs),
		"addresses... (press Ctrl-C to interrupt)")

	__exit := make(chan bool)
	__done := make(chan bool)
	go func() {
		for {
			select {
			case s := <-killchan:
				fmt.Println(s)
				chain.AbortNow = true
			case <-__exit:
				__done <- true
				return
			}
		}
	}()

	ext := &chain.NewChanOpts{NotifyTx: wallet.TxNotify,
		NotifyStealthTx: wallet.StealthNotify,
		LoadWalk:        wallet.NewUTXO, LoadFlush: wallet.DoPendingStealths}

	sta := time.Now().UnixNano()
	common.BlockChain = chain.NewChainExt(common.GocoinHomeDir, common.GenesisBlock, common.FLAG.Rescan, ext)
	sto := time.Now().UnixNano()
	if chain.AbortNow {
		fmt.Printf("Blockchain opening aborted after %.3f seconds\n", float64(sto-sta)/1e9)
		common.BlockChain.Close()
		sys.UnlockDatabaseDir()
		os.Exit(1)
	}
	wallet.ChainInitDone()
	al, sy := sys.MemUsed()
	fmt.Printf("Blockchain open in %.3f seconds.  %d + %d MB of RAM used (%d)\n",
		float64(sto-sta)/1e9, al>>20, qdb.ExtraMemoryConsumed>>20, sy>>20)
	common.StartTime = time.Now()
	__exit <- true
	_ = <-__done
}