Exemplo n.º 1
0
func main() {
	fmt.Println("Gocoin blockchain downloader version", lib.Version)
	parse_command_line()
	setup_runtime_vars()

	if len(GocoinHomeDir) > 0 && GocoinHomeDir[len(GocoinHomeDir)-1] != os.PathSeparator {
		GocoinHomeDir += string(os.PathSeparator)
	}
	if Testnet {
		GocoinHomeDir += "tstnet" + string(os.PathSeparator)
		Magic = [4]byte{0x0B, 0x11, 0x09, 0x07}
		GenesisBlock = btc.NewUint256FromString("000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943")
		fmt.Println("Using testnet3")
	} else {
		GocoinHomeDir += "btcnet" + string(os.PathSeparator)
	}
	fmt.Println("GocoinHomeDir:", GocoinHomeDir)

	sys.LockDatabaseDir(GocoinHomeDir)
	defer sys.UnlockDatabaseDir()

	peersdb.Testnet = Testnet
	peersdb.InitPeers(GocoinHomeDir)

	StartTime = time.Now()
	if open_blockchain() {
		fmt.Printf("Blockchain opening aborted\n")
		return
	}
	fmt.Println("Blockchain open in", time.Now().Sub(StartTime))

	go do_usif()

	download_headers()
	if GlobalExit() {
		TheBlockChain.Close()
		return
	}

	var HighestTrustedBlock *btc.Uint256
	if LastTrustedBlock == "all" {
		HighestTrustedBlock = TheBlockChain.BlockTreeEnd.BlockHash
		fmt.Println("Assume all blocks trusted")
	} else if LastTrustedBlock == "auto" {
		if LastBlockHeight > 6 {
			use := LastBlockHeight - 6
			ha := BlocksToGet[use]
			HighestTrustedBlock = btc.NewUint256(ha[:])
			fmt.Println("Assume last trusted block as", HighestTrustedBlock.String(), "at", use)
		} else {
			fmt.Println("-t=auto ignored since LastBlockHeight is only", LastBlockHeight)
		}
	} else if LastTrustedBlock != "" {
		HighestTrustedBlock = btc.NewUint256FromString(LastTrustedBlock)
	}
	if HighestTrustedBlock != nil {
		for k, h := range BlocksToGet {
			if bytes.Equal(h[:], HighestTrustedBlock.Hash[:]) {
				TrustUpTo = k
				break
			}
		}
	} else {
		fmt.Println("WARNING: The trusted block not found (it will be very slow).")
	}

	for n := TheBlockChain.BlockTreeEnd; n != nil && n.Height > TheBlockChain.BlockTreeEnd.Height-BSLEN; n = n.Parent {
		blocksize_update(int(n.BlockSize))
	}

	fmt.Println("Downloading blocks - BlocksToGet:", len(BlocksToGet), "  avg_size:", avg_block_size())
	usif_prompt()
	StartTime = time.Now()
	get_blocks()
	fmt.Println("Up to block", TheBlockChain.BlockTreeEnd.Height, "in", time.Now().Sub(StartTime).String())
	close_all_connections()

	peersdb.ClosePeerDB()

	StartTime = time.Now()
	fmt.Print("All blocks done - defrag unspent")
	qdb.SetDefragPercent(100)
	for {
		if !TheBlockChain.Unspent.Idle() {
			break
		}
		fmt.Print(".")
	}
	fmt.Println("\nDefrag unspent done in", time.Now().Sub(StartTime).String())
	TheBlockChain.Close()

	return
}
Exemplo n.º 2
0
func main() {
	var ptr *byte
	if unsafe.Sizeof(ptr) < 8 {
		fmt.Println("WARNING: Gocoin client shall be build for 64-bit arch. It will likely crash now.")
	}

	fmt.Println("Gocoin client version", gocoin.Version)
	runtime.GOMAXPROCS(runtime.NumCPU()) // It seems that Go does not do it by default

	// Disable Ctrl+C
	signal.Notify(killchan, os.Interrupt, os.Kill)
	defer func() {
		if r := recover(); r != nil {
			err, ok := r.(error)
			if !ok {
				err = fmt.Errorf("pkg: %v", r)
			}
			fmt.Println("main panic recovered:", err.Error())
			fmt.Println(string(debug.Stack()))
			network.NetCloseAll()
			common.CloseBlockChain(false)
			peersdb.ClosePeerDB()
			sys.UnlockDatabaseDir()
			os.Exit(1)
		}
	}()

	common.InitConfig()

	if common.FLAG.VolatileUTXO {
		fmt.Println("WARNING! Using UTXO database in a volatile mode. Make sure to close the client properly (do not kill it!)")
	}

	if common.FLAG.TrustAll {
		fmt.Println("WARNING! Assuming all scripts inside new blocks to PASS. Verify the last block's hash when finished.")
	}

	host_init() // This will create the DB lock file and keep it open

	if common.FLAG.UndoBlocks > 0 {
		usif.Exit_now = true
	}

	if common.FLAG.Rescan && common.FLAG.VolatileUTXO {

		fmt.Println("UTXO database rebuilt complete in the volatile mode, so flush DB to disk and exit...")

	} else if !usif.Exit_now {

		common.RecalcAverageBlockSize(true)

		peersTick := time.Tick(5 * time.Minute)
		txPoolTick := time.Tick(time.Minute)
		netTick := time.Tick(time.Second)

		peersdb.Testnet = common.Testnet
		peersdb.ConnectOnly = common.CFG.ConnectOnly
		peersdb.Services = common.Services
		peersdb.InitPeers(common.GocoinHomeDir)
		if common.FLAG.UnbanAllPeers {
			var keys []qdb.KeyType
			var vals [][]byte
			peersdb.PeerDB.Browse(func(k qdb.KeyType, v []byte) uint32 {
				peer := utils.NewPeer(v)
				if peer.Banned != 0 {
					fmt.Println("Unban", peer.NetAddr.String())
					peer.Banned = 0
					keys = append(keys, k)
					vals = append(vals, peer.Bytes())
				}
				return 0
			})
			for i := range keys {
				peersdb.PeerDB.Put(keys[i], vals[i])
			}

			fmt.Println(len(keys), "peerts un-baned")
		}

		common.Last.Block = common.BlockChain.BlockTreeEnd
		common.Last.Time = time.Unix(int64(common.Last.Block.Timestamp()), 0)
		if common.Last.Time.After(time.Now()) {
			common.Last.Time = time.Now()
		}

		for k, v := range common.BlockChain.BlockIndex {
			network.ReceivedBlocks[k] = &network.OneReceivedBlock{TmStart: time.Unix(int64(v.Timestamp()), 0)}
		}
		network.LastCommitedHeader = common.Last.Block

		if common.CFG.TextUI.Enabled {
			go textui.MainThread()
		}

		if common.CFG.WebUI.Interface != "" {
			fmt.Println("Starting WebUI at", common.CFG.WebUI.Interface, "...")
			go webui.ServerThread(common.CFG.WebUI.Interface)
		}

		if common.CFG.RPC.Enabled {
			go rpcapi.StartServer(common.RPCPort())
		}

		for !usif.Exit_now {
			common.CountSafe("MainThreadLoops")
			for retryCachedBlocks {
				retryCachedBlocks = retry_cached_blocks()
				// We have done one per loop - now do something else if pending...
				if len(network.NetBlocks) > 0 || len(usif.UiChannel) > 0 {
					break
				}
			}

			common.Busy("")

			select {
			case s := <-killchan:
				fmt.Println("Got signal:", s)
				usif.Exit_now = true
				continue

			case rpcbl := <-rpcapi.RpcBlocks:
				common.CountSafe("RPCNewBlock")
				common.Busy("HandleRpcBlock()")
				HandleRpcBlock(rpcbl)

			case rec := <-usif.LocksChan:
				common.CountSafe("MainLocks")
				common.Busy("LockedByRequest")
				rec.In.Done()
				rec.Out.Wait()
				continue

			case newbl := <-network.NetBlocks:
				common.CountSafe("MainNetBlock")
				common.Busy("HandleNetBlock()")
				HandleNetBlock(newbl)

			case <-syncNow:
				common.CountSafe("MainChainSync")
				common.Busy("BlockChain.Sync()")
				common.BlockChain.Sync()

			case newtx := <-network.NetTxs:
				common.CountSafe("MainNetTx")
				common.Busy("network.HandleNetTx()")
				network.HandleNetTx(newtx, false)

			case <-netTick:
				common.CountSafe("MainNetTick")
				common.Busy("network.NetworkTick()")
				network.NetworkTick()

			case cmd := <-usif.UiChannel:
				common.CountSafe("MainUICmd")
				common.Busy("UI command")
				cmd.Handler(cmd.Param)
				cmd.Done.Done()
				continue

			case <-peersTick:
				common.Busy("peersdb.ExpirePeers()")
				peersdb.ExpirePeers()

			case <-txPoolTick:
				common.Busy("network.ExpireTxs()")
				network.ExpireTxs()

			case <-time.After(time.Second / 2):
				common.CountSafe("MainThreadTouts")
				if !retryCachedBlocks {
					if usif.DefragUTXO {
						usif.Exit_now = true
						break
					}
					common.Busy("BlockChain.Idle()")
					if common.BlockChain.Idle() {
						common.CountSafe("ChainIdleUsed")
					}
				}
				continue
			}
		}

		network.NetCloseAll()
	}

	if usif.DefragUTXO {
		fmt.Println("Closing blockchain while defragmenting UTXO")
	} else {
		fmt.Println("Closing blockchain")
	}
	sta := time.Now()
	common.CloseBlockChain(usif.DefragUTXO)
	fmt.Println("Blockchain closed in", time.Now().Sub(sta).String())
	peersdb.ClosePeerDB()
	sys.UnlockDatabaseDir()
}
Exemplo n.º 3
0
func main() {
	var ptr *byte
	if unsafe.Sizeof(ptr) < 8 {
		fmt.Println("WARNING: Gocoin client shall be build for 64-bit arch. It will likely crash now.")
	}

	fmt.Println("Gocoin client version", lib.Version)
	runtime.GOMAXPROCS(runtime.NumCPU()) // It seems that Go does not do it by default

	// Disable Ctrl+C
	signal.Notify(killchan, os.Interrupt, os.Kill)
	defer func() {
		if r := recover(); r != nil {
			err, ok := r.(error)
			if !ok {
				err = fmt.Errorf("pkg: %v", r)
			}
			fmt.Println("main panic recovered:", err.Error())
			fmt.Println(string(debug.Stack()))
			network.NetCloseAll()
			common.CloseBlockChain()
			peersdb.ClosePeerDB()
			sys.UnlockDatabaseDir()
			os.Exit(1)
		}
	}()

	common.InitConfig()
	host_init() // This will create the DB lock file and keep it open

	peersTick := time.Tick(5 * time.Minute)
	txPoolTick := time.Tick(time.Minute)
	netTick := time.Tick(time.Second)

	peersdb.Testnet = common.Testnet
	peersdb.ConnectOnly = common.CFG.ConnectOnly
	peersdb.Services = common.Services
	peersdb.InitPeers(common.GocoinHomeDir)

	common.Last.Block = common.BlockChain.BlockTreeEnd
	common.Last.Time = time.Unix(int64(common.Last.Block.Timestamp()), 0)
	if common.Last.Time.After(time.Now()) {
		common.Last.Time = time.Now()
	}

	for k, v := range common.BlockChain.BlockIndex {
		network.ReceivedBlocks[k] = &network.OneReceivedBlock{Time: time.Unix(int64(v.Timestamp()), 0)}
	}

	if common.CFG.TextUI.Enabled {
		go textui.MainThread()
	}

	if common.CFG.WebUI.Interface != "" {
		fmt.Println("Starting WebUI at", common.CFG.WebUI.Interface, "...")
		go webui.ServerThread(common.CFG.WebUI.Interface)
	}

	for !usif.Exit_now {
		common.CountSafe("MainThreadLoops")
		for retryCachedBlocks {
			retryCachedBlocks = retry_cached_blocks()
			// We have done one per loop - now do something else if pending...
			if len(network.NetBlocks) > 0 || len(usif.UiChannel) > 0 {
				break
			}
		}

		common.Busy("")

		select {
		case s := <-killchan:
			fmt.Println("Got signal:", s)
			usif.Exit_now = true
			continue

		case newbl := <-network.NetBlocks:
			common.CountSafe("MainNetBlock")
			HandleNetBlock(newbl)

		case newtx := <-network.NetTxs:
			common.CountSafe("MainNetTx")
			network.HandleNetTx(newtx, false)

		case newal := <-network.NetAlerts:
			common.CountSafe("MainNetAlert")
			fmt.Println("\007" + newal)
			textui.ShowPrompt()

		case <-netTick:
			common.CountSafe("MainNetTick")
			network.NetworkTick()

		case cmd := <-usif.UiChannel:
			common.CountSafe("MainUICmd")
			common.Busy("UI command")
			cmd.Handler(cmd.Param)
			cmd.Done.Done()
			continue

		case <-peersTick:
			peersdb.ExpirePeers()

		case <-txPoolTick:
			network.ExpireTxs()

		case <-time.After(time.Second / 2):
			common.CountSafe("MainThreadTouts")
			if !retryCachedBlocks {
				common.Busy("common.BlockChain.Idle()")
				if common.BlockChain.Idle() {
					common.CountSafe("ChainIdleUsed")
				}
			}
			continue
		}
	}

	network.NetCloseAll()
	peersdb.ClosePeerDB()

	if usif.DefragBlocksDB != 0 {
		defrag_db()
	}

	common.CloseBlockChain()
	sys.UnlockDatabaseDir()
}