Esempio n. 1
0
func LocalAcceptBlock(newbl *network.BlockRcvd) (e error) {
	newbl.TmQueue = time.Now()
	bl := newbl.Block
	if common.FLAG.TrustAll {
		bl.Trusted = true
	}
	if !common.BlockChain.DoNotSync {
		common.BlockChain.DoNotSync = true
		syncNow <- true
	}
	e = common.BlockChain.CommitBlock(bl, newbl.BlockTreeNode)
	if e == nil {
		// new block accepted
		newbl.TmAccepted = time.Now()
		newbl.NonWitnessSize = len(bl.OldData)

		common.RecalcAverageBlockSize(false)

		for i := 1; i < len(bl.Txs); i++ {
			network.TxMined(bl.Txs[i])
			kspb := 1000 * bl.Txs[i].Fee / uint64(bl.Txs[i].Size)
			if i == 1 || newbl.MinFeeKSPB > kspb {
				newbl.MinFeeKSPB = kspb
			}
		}

		if int64(bl.BlockTime()) > time.Now().Add(-10*time.Minute).Unix() {
			// Freshly mined block - do the inv and beeps...
			new_block_mined(bl, newbl.Conn)
		}

		common.Last.Mutex.Lock()
		common.Last.Time = time.Now()
		common.Last.Block = common.BlockChain.BlockTreeEnd
		if false && common.Last.Block.Height == 725676 {
			fmt.Println("Reached block number", common.Last.Block.Height, "- exiting...")
			usif.Exit_now = true
		}
		common.Last.Mutex.Unlock()
	} else {
		fmt.Println("Warning: AcceptBlock failed. If the block was valid, you may need to rebuild the unspent DB (-r)")
		common.Last.Mutex.Lock()
		common.Last.Block = common.BlockChain.BlockTreeEnd
		common.Last.Mutex.Unlock()
		// update network.LastCommitedHeader
		network.MutexRcv.Lock()
		if network.LastCommitedHeader != common.BlockChain.BlockTreeEnd {
			network.LastCommitedHeader = common.BlockChain.BlockTreeEnd
			println("LastCommitedHeader moved to", network.LastCommitedHeader.Height)
		}
		network.DiscardedBlocks[newbl.Hash.BIdx()] = true
		network.MutexRcv.Unlock()
	}
	return
}
Esempio n. 2
0
func HandleRpcBlock(msg *rpcapi.BlockSubmited) {
	network.MutexRcv.Lock()
	rb := network.ReceivedBlocks[msg.Block.Hash.BIdx()]
	network.MutexRcv.Unlock()
	if rb == nil {
		panic("Block " + msg.Block.Hash.String() + " not in ReceivedBlocks map")
	}

	rb.TmQueue = time.Now()

	e, _, _ := common.BlockChain.CheckBlock(msg.Block)
	if e == nil {
		e = common.BlockChain.AcceptBlock(msg.Block)
		rb.TmAccepted = time.Now()
	}
	if e != nil {
		common.CountSafe("RPCBlockError")
		msg.Error = e.Error()
		msg.Done.Done()
		return
	}

	common.RecalcAverageBlockSize(false)

	for i := 1; i < len(msg.Block.Txs); i++ {
		network.TxMined(msg.Block.Txs[i])
	}

	common.CountSafe("RPCBlockOK")
	println("New mined block", msg.Block.Height, "accepted OK")

	new_block_mined(msg.Block, nil)

	common.Last.Mutex.Lock()
	common.Last.Time = time.Now()
	common.Last.Block = common.BlockChain.BlockTreeEnd
	common.Last.Mutex.Unlock()

	msg.Done.Done()
}
Esempio n. 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", 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()
}