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781 lines
28 KiB
781 lines
28 KiB
package node
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import (
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"bytes"
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"crypto/ecdsa"
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"encoding/binary"
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"fmt"
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"math/big"
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"os"
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"strconv"
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"strings"
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"sync"
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"time"
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"github.com/harmony-one/harmony/drand"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/ethdb"
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"github.com/ethereum/go-ethereum/params"
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"github.com/ethereum/go-ethereum/rlp"
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"github.com/harmony-one/harmony/api/client"
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clientService "github.com/harmony-one/harmony/api/client/service"
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proto_discovery "github.com/harmony-one/harmony/api/proto/discovery"
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proto_node "github.com/harmony-one/harmony/api/proto/node"
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service_manager "github.com/harmony-one/harmony/api/service"
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blockproposal "github.com/harmony-one/harmony/api/service/blockproposal"
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"github.com/harmony-one/harmony/api/service/clientsupport"
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consensus_service "github.com/harmony-one/harmony/api/service/consensus"
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"github.com/harmony-one/harmony/api/service/discovery"
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"github.com/harmony-one/harmony/api/service/explorer"
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"github.com/harmony-one/harmony/api/service/networkinfo"
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randomness_service "github.com/harmony-one/harmony/api/service/randomness"
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"github.com/harmony-one/harmony/api/service/staking"
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"github.com/harmony-one/harmony/api/service/syncing"
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"github.com/harmony-one/harmony/api/service/syncing/downloader"
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downloader_pb "github.com/harmony-one/harmony/api/service/syncing/downloader/proto"
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bft "github.com/harmony-one/harmony/consensus"
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"github.com/harmony-one/harmony/core"
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"github.com/harmony-one/harmony/core/types"
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"github.com/harmony-one/harmony/core/vm"
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"github.com/harmony-one/harmony/crypto/pki"
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"github.com/harmony-one/harmony/internal/utils"
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"github.com/harmony-one/harmony/node/worker"
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"github.com/harmony-one/harmony/p2p"
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)
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// State is a state of a node.
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type State byte
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// All constants except the NodeLeader below are for validators only.
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const (
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NodeInit State = iota // Node just started, before contacting BeaconChain
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NodeWaitToJoin // Node contacted BeaconChain, wait to join Shard
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NodeNotInSync // Node out of sync, might be just joined Shard or offline for a period of time
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NodeOffline // Node is offline
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NodeReadyForConsensus // Node is ready for doing consensus
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NodeDoingConsensus // Node is already doing consensus
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NodeLeader // Node is the leader of some shard.
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)
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// Role defines a role of a node.
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type Role byte
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// All constants for different node roles.
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const (
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Unknown Role = iota
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ShardLeader
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ShardValidator
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BeaconLeader
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BeaconValidator
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NewNode
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)
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func (state State) String() string {
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switch state {
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case NodeInit:
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return "NodeInit"
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case NodeWaitToJoin:
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return "NodeWaitToJoin"
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case NodeNotInSync:
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return "NodeNotInSync"
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case NodeOffline:
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return "NodeOffline"
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case NodeReadyForConsensus:
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return "NodeReadyForConsensus"
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case NodeDoingConsensus:
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return "NodeDoingConsensus"
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case NodeLeader:
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return "NodeLeader"
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}
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return "Unknown"
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}
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// Constants related to doing syncing.
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const (
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lastMileThreshold = 4
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inSyncThreshold = 1
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)
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// TotalInitFund is the initial total fund to the faucet.
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const TotalInitFund = 9000000
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const (
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waitBeforeJoinShard = time.Second * 3
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timeOutToJoinShard = time.Minute * 10
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// ClientServicePortDiff is the positive port diff for client service
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ClientServicePortDiff = 5555
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maxBroadcastNodes = 10 // broadcast at most maxBroadcastNodes peers that need in sync
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broadcastTimeout int64 = 3 * 60 * 1000000000 // 3 mins
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)
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// use to push new block to outofsync node
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type syncConfig struct {
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timestamp int64
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client *downloader.Client
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}
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// Node represents a protocol-participating node in the network
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type Node struct {
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Consensus *bft.Consensus // Consensus object containing all Consensus related data (e.g. committee members, signatures, commits)
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BlockChannel chan *types.Block // The channel to send newly proposed blocks
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ConfirmedBlockChannel chan *types.Block // The channel to send confirmed blocks
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pendingTransactions types.Transactions // All the transactions received but not yet processed for Consensus
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transactionInConsensus []*types.Transaction // The transactions selected into the new block and under Consensus process
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pendingTxMutex sync.Mutex
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DRand *drand.DRand // The instance for distributed randomness protocol
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blockchain *core.BlockChain // The blockchain for the shard where this node belongs
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db *ethdb.LDBDatabase // LevelDB to store blockchain.
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ClientPeer *p2p.Peer // The peer for the harmony tx generator client, used for leaders to return proof-of-accept
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Client *client.Client // The presence of a client object means this node will also act as a client
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SelfPeer p2p.Peer // TODO(minhdoan): it could be duplicated with Self below whose is Alok work.
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BCPeers []p2p.Peer // list of Beacon Chain Peers. This is needed by all nodes.
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// TODO: Neighbors should store only neighbor nodes in the same shard
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Neighbors sync.Map // All the neighbor nodes, key is the sha256 of Peer IP/Port, value is the p2p.Peer
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State State // State of the Node
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stateMutex sync.Mutex // mutex for change node state
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TxPool *core.TxPool
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Worker *worker.Worker
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// Client server (for wallet requests)
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clientServer *clientService.Server
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// Syncing component.
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downloaderServer *downloader.Server
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stateSync *syncing.StateSync
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peerRegistrationRecord map[uint32]*syncConfig // record registration time (unixtime) of peers begin in syncing
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// The p2p host used to send/receive p2p messages
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host p2p.Host
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// Channel to stop sending ping message
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StopPing chan struct{}
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// Signal channel for lost validators
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OfflinePeers chan p2p.Peer
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// Node Role.
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Role Role
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// Service manager.
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serviceManager *service_manager.Manager
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//Staked Accounts and Contract
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CurrentStakes map[common.Address]int64 //This will save the latest information about staked nodes.
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StakingContractAddress common.Address
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WithdrawStakeFunc []byte
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//Node Account
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AccountKey *ecdsa.PrivateKey
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Address common.Address
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// For test only
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TestBankKeys []*ecdsa.PrivateKey
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ContractKeys []*ecdsa.PrivateKey
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ContractAddresses []common.Address
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// Group Message Receiver
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groupReceiver p2p.GroupReceiver
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// Duplicated Ping Message Received
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duplicatedPing map[string]bool
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}
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// Blockchain returns the blockchain from node
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func (node *Node) Blockchain() *core.BlockChain {
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return node.blockchain
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}
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// Add new transactions to the pending transaction list
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func (node *Node) addPendingTransactions(newTxs types.Transactions) {
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node.pendingTxMutex.Lock()
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node.pendingTransactions = append(node.pendingTransactions, newTxs...)
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node.pendingTxMutex.Unlock()
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utils.GetLogInstance().Debug("Got more transactions", "num", len(newTxs), "totalPending", len(node.pendingTransactions))
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}
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// Take out a subset of valid transactions from the pending transaction list
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// Note the pending transaction list will then contain the rest of the txs
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func (node *Node) getTransactionsForNewBlock(maxNumTxs int) types.Transactions {
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node.pendingTxMutex.Lock()
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selected, unselected, invalid := node.Worker.SelectTransactionsForNewBlock(node.pendingTransactions, maxNumTxs)
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_ = invalid // invalid txs are discard
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utils.GetLogInstance().Debug("Invalid transactions discarded", "number", len(invalid))
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node.pendingTransactions = unselected
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utils.GetLogInstance().Debug("Remaining pending transactions", "number", len(node.pendingTransactions))
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node.pendingTxMutex.Unlock()
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return selected
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}
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// StartServer starts a server and process the requests by a handler.
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func (node *Node) StartServer() {
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if utils.UseLibP2P {
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select {}
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} else {
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node.host.BindHandlerAndServe(node.StreamHandler)
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}
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}
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// Count the total number of transactions in the blockchain
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// Currently used for stats reporting purpose
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func (node *Node) countNumTransactionsInBlockchain() int {
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count := 0
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for block := node.blockchain.CurrentBlock(); block != nil; block = node.blockchain.GetBlockByHash(block.Header().ParentHash) {
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count += len(block.Transactions())
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}
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return count
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}
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// New creates a new node.
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func New(host p2p.Host, consensus *bft.Consensus, db ethdb.Database) *Node {
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node := Node{}
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if host != nil {
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node.host = host
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node.SelfPeer = host.GetSelfPeer()
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}
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if host != nil && consensus != nil {
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// Consensus and associated channel to communicate blocks
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node.Consensus = consensus
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// Initialize genesis block and blockchain
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genesisAlloc := node.CreateGenesisAllocWithTestingAddresses(100)
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contractKey, _ := ecdsa.GenerateKey(crypto.S256(), strings.NewReader("Test contract key string stream that is fixed so that generated test key are deterministic every time"))
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contractAddress := crypto.PubkeyToAddress(contractKey.PublicKey)
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contractFunds := big.NewInt(TotalInitFund)
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contractFunds = contractFunds.Mul(contractFunds, big.NewInt(params.Ether))
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genesisAlloc[contractAddress] = core.GenesisAccount{Balance: contractFunds}
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node.ContractKeys = append(node.ContractKeys, contractKey)
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database := db
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if database == nil {
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database = ethdb.NewMemDatabase()
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}
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chainConfig := params.TestChainConfig
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chainConfig.ChainID = big.NewInt(int64(node.Consensus.ShardID)) // Use ChainID as piggybacked ShardID
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gspec := core.Genesis{
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Config: chainConfig,
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Alloc: genesisAlloc,
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ShardID: uint32(node.Consensus.ShardID),
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}
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_ = gspec.MustCommit(database)
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chain, _ := core.NewBlockChain(database, nil, gspec.Config, node.Consensus, vm.Config{}, nil)
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node.blockchain = chain
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node.BlockChannel = make(chan *types.Block)
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node.ConfirmedBlockChannel = make(chan *types.Block)
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node.TxPool = core.NewTxPool(core.DefaultTxPoolConfig, params.TestChainConfig, chain)
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node.Worker = worker.New(params.TestChainConfig, chain, node.Consensus, pki.GetAddressFromPublicKey(node.SelfPeer.PubKey), node.Consensus.ShardID)
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node.AddFaucetContractToPendingTransactions()
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if node.Role == BeaconLeader {
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node.AddStakingContractToPendingTransactions() //This will save the latest information about staked nodes in current staked
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node.DepositToFakeAccounts()
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}
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if node.Role == BeaconLeader || node.Role == BeaconValidator {
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node.CurrentStakes = make(map[common.Address]int64)
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}
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node.Consensus.ConsensusBlock = make(chan *bft.BFTBlockInfo)
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node.Consensus.VerifiedNewBlock = make(chan *types.Block)
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}
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if consensus != nil && consensus.IsLeader {
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node.State = NodeLeader
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} else {
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node.State = NodeInit
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}
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// Setup initial state of syncing.
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node.StopPing = make(chan struct{})
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node.peerRegistrationRecord = make(map[uint32]*syncConfig)
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node.OfflinePeers = make(chan p2p.Peer)
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go node.RemovePeersHandler()
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// start the goroutine to receive group message
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go node.ReceiveGroupMessage()
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node.duplicatedPing = make(map[string]bool)
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return &node
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}
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func (node *Node) getDeployedStakingContract() common.Address {
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return node.StakingContractAddress
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}
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//In order to get the deployed contract address of a contract, we need to find the nonce of the address that created it.
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//(Refer: https://solidity.readthedocs.io/en/v0.5.3/introduction-to-smart-contracts.html#index-8)
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// Then we can (re)create the deployed address. Trivially, this is 0 for us.
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// The deployed contract address can also be obtained via the receipt of the contract creating transaction.
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func (node *Node) generateDeployedStakingContractAddress(mycontracttx *types.Transaction, contractAddress common.Address) common.Address {
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//Ideally we send the transaction to
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//Correct Way 1:
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//node.SendTx(mycontracttx)
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//receipts := node.worker.GetCurrentReceipts()
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//deployedcontractaddress = recepits[len(receipts)-1].ContractAddress //get the address from the receipt
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//Correct Way 2:
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//nonce := GetNonce(contractAddress)
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//deployedAddress := crypto.CreateAddress(contractAddress, uint64(nonce))
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//deployedcontractaddress = recepits[len(receipts)-1].ContractAddress //get the address from the receipt
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nonce := 0
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return crypto.CreateAddress(contractAddress, uint64(nonce))
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}
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// IsOutOfSync checks whether the node is out of sync by comparing latest block with consensus block
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func (node *Node) IsOutOfSync(consensusBlockInfo *bft.BFTBlockInfo) bool {
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consensusBlock := consensusBlockInfo.Block
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consensusID := consensusBlockInfo.ConsensusID
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myHeight := node.blockchain.CurrentBlock().NumberU64()
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newHeight := consensusBlock.NumberU64()
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utils.GetLogInstance().Debug("[SYNC]", "myHeight", myHeight, "newHeight", newHeight)
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if newHeight-myHeight <= inSyncThreshold {
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node.stateSync.AddLastMileBlock(consensusBlock)
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node.Consensus.UpdateConsensusID(consensusID + 1)
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return false
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}
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// cache latest blocks for last mile catch up
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if newHeight-myHeight <= lastMileThreshold && node.stateSync != nil {
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node.stateSync.AddLastMileBlock(consensusBlock)
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}
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return true
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}
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// DoSyncing wait for check status and starts syncing if out of sync
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func (node *Node) DoSyncing() {
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for {
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select {
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// in current implementation logic, timeout means in sync
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case <-time.After(5 * time.Second):
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//myHeight := node.blockchain.CurrentBlock().NumberU64()
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//utils.GetLogInstance().Debug("[SYNC]", "currentHeight", myHeight)
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node.stateMutex.Lock()
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node.State = NodeReadyForConsensus
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node.stateMutex.Unlock()
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continue
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case consensusBlockInfo := <-node.Consensus.ConsensusBlock:
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if !node.IsOutOfSync(consensusBlockInfo) {
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startHash := node.blockchain.CurrentBlock().Hash()
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node.stateSync.StartStateSync(startHash[:], node.blockchain, node.Worker)
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if node.State == NodeNotInSync {
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utils.GetLogInstance().Info("[SYNC] Node is now IN SYNC!")
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}
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node.stateMutex.Lock()
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node.State = NodeReadyForConsensus
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node.stateMutex.Unlock()
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node.stateSync.CloseConnections()
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node.stateSync = nil
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continue
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} else {
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utils.GetLogInstance().Debug("[SYNC] node is out of sync")
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node.stateMutex.Lock()
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node.State = NodeNotInSync
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node.stateMutex.Unlock()
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}
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if node.stateSync == nil {
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node.stateSync = syncing.CreateStateSync(node.SelfPeer.IP, node.SelfPeer.Port)
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node.stateSync.CreateSyncConfig(node.GetSyncingPeers())
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node.stateSync.MakeConnectionToPeers()
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}
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startHash := node.blockchain.CurrentBlock().Hash()
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node.stateSync.StartStateSync(startHash[:], node.blockchain, node.Worker)
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}
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}
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}
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// AddPeers adds neighbors nodes
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func (node *Node) AddPeers(peers []*p2p.Peer) int {
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count := 0
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for _, p := range peers {
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key := fmt.Sprintf("%v", p.PubKey)
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_, ok := node.Neighbors.Load(key)
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if !ok {
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node.Neighbors.Store(key, *p)
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count++
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node.host.AddPeer(p)
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continue
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}
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if node.SelfPeer.ValidatorID == -1 && p.IP == node.SelfPeer.IP && p.Port == node.SelfPeer.Port {
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node.SelfPeer.ValidatorID = p.ValidatorID
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}
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}
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if count > 0 {
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node.Consensus.AddPeers(peers)
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// TODO: make peers into a context object shared by consensus and drand
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node.DRand.AddPeers(peers)
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}
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return count
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}
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// GetSyncingPort returns the syncing port.
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func GetSyncingPort(nodePort string) string {
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if port, err := strconv.Atoi(nodePort); err == nil {
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return fmt.Sprintf("%d", port-syncing.SyncingPortDifference)
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}
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os.Exit(1)
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return ""
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}
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// GetSyncingPeers returns list of peers.
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func (node *Node) GetSyncingPeers() []p2p.Peer {
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res := []p2p.Peer{}
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node.Neighbors.Range(func(k, v interface{}) bool {
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res = append(res, v.(p2p.Peer))
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return true
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})
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removeID := -1
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for i := range res {
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if res[i].Port == node.SelfPeer.Port {
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removeID = i
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}
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res[i].Port = GetSyncingPort(res[i].Port)
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}
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if removeID != -1 {
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res = append(res[:removeID], res[removeID+1:]...)
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}
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utils.GetLogInstance().Debug("GetSyncingPeers: ", "res", res, "self", node.SelfPeer)
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return res
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}
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// JoinShard helps a new node to join a shard.
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func (node *Node) JoinShard(leader p2p.Peer) {
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// try to join the shard, send ping message every 1 second, with a 10 minutes time-out
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tick := time.NewTicker(1 * time.Second)
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timeout := time.NewTicker(10 * time.Minute)
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defer tick.Stop()
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defer timeout.Stop()
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for {
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select {
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case <-tick.C:
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ping := proto_discovery.NewPingMessage(node.SelfPeer)
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if node.Client != nil { // assume this is the client node
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ping.Node.Role = proto_node.ClientRole
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}
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buffer := ping.ConstructPingMessage()
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// Talk to leader.
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node.SendMessage(leader, buffer)
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case <-timeout.C:
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utils.GetLogInstance().Info("JoinShard timeout")
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return
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case <-node.StopPing:
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utils.GetLogInstance().Info("Stopping JoinShard")
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return
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}
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}
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}
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|
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// SupportSyncing keeps sleeping until it's doing consensus or it's a leader.
|
|
func (node *Node) SupportSyncing() {
|
|
node.InitSyncingServer()
|
|
node.StartSyncingServer()
|
|
|
|
go node.DoSyncing()
|
|
go node.SendNewBlockToUnsync()
|
|
}
|
|
|
|
// InitSyncingServer starts downloader server.
|
|
func (node *Node) InitSyncingServer() {
|
|
node.downloaderServer = downloader.NewServer(node)
|
|
}
|
|
|
|
// StartSyncingServer starts syncing server.
|
|
func (node *Node) StartSyncingServer() {
|
|
utils.GetLogInstance().Info("support_sycning: StartSyncingServer")
|
|
node.downloaderServer.Start(node.SelfPeer.IP, GetSyncingPort(node.SelfPeer.Port))
|
|
}
|
|
|
|
// CalculateResponse implements DownloadInterface on Node object.
|
|
func (node *Node) CalculateResponse(request *downloader_pb.DownloaderRequest) (*downloader_pb.DownloaderResponse, error) {
|
|
response := &downloader_pb.DownloaderResponse{}
|
|
switch request.Type {
|
|
case downloader_pb.DownloaderRequest_HEADER:
|
|
utils.GetLogInstance().Debug("[SYNC] CalculateResponse DownloaderRequest_HEADER", "request.BlockHash", request.BlockHash)
|
|
var startHeaderHash []byte
|
|
if request.BlockHash == nil {
|
|
tmp := node.blockchain.Genesis().Hash()
|
|
startHeaderHash = tmp[:]
|
|
} else {
|
|
startHeaderHash = request.BlockHash
|
|
}
|
|
for block := node.blockchain.CurrentBlock(); block != nil; block = node.blockchain.GetBlockByHash(block.Header().ParentHash) {
|
|
blockHash := block.Hash()
|
|
if bytes.Compare(blockHash[:], startHeaderHash) == 0 {
|
|
break
|
|
}
|
|
response.Payload = append(response.Payload, blockHash[:])
|
|
}
|
|
case downloader_pb.DownloaderRequest_BLOCK:
|
|
for _, bytes := range request.Hashes {
|
|
var hash common.Hash
|
|
hash.SetBytes(bytes)
|
|
block := node.blockchain.GetBlockByHash(hash)
|
|
encodedBlock, err := rlp.EncodeToBytes(block)
|
|
if err == nil {
|
|
response.Payload = append(response.Payload, encodedBlock)
|
|
}
|
|
}
|
|
case downloader_pb.DownloaderRequest_NEWBLOCK:
|
|
if node.State != NodeNotInSync {
|
|
utils.GetLogInstance().Debug("[SYNC] new block received, but state is", "state", node.State.String())
|
|
response.Type = downloader_pb.DownloaderResponse_INSYNC
|
|
return response, nil
|
|
}
|
|
var blockObj types.Block
|
|
err := rlp.DecodeBytes(request.BlockHash, &blockObj)
|
|
if err != nil {
|
|
utils.GetLogInstance().Warn("[SYNC] unable to decode received new block")
|
|
return response, err
|
|
}
|
|
node.stateSync.AddNewBlock(request.PeerHash, &blockObj)
|
|
|
|
case downloader_pb.DownloaderRequest_REGISTER:
|
|
peerID := binary.BigEndian.Uint32(request.PeerHash)
|
|
if _, ok := node.peerRegistrationRecord[peerID]; ok {
|
|
response.Type = downloader_pb.DownloaderResponse_FAIL
|
|
return response, nil
|
|
} else if len(node.peerRegistrationRecord) >= maxBroadcastNodes {
|
|
response.Type = downloader_pb.DownloaderResponse_FAIL
|
|
return response, nil
|
|
} else {
|
|
peer, ok := node.Consensus.GetPeerFromID(peerID)
|
|
if !ok {
|
|
utils.GetLogInstance().Warn("[SYNC] unable to get peer from peerID", "peerID", peerID)
|
|
}
|
|
client := downloader.ClientSetup(peer.IP, GetSyncingPort(peer.Port))
|
|
if client == nil {
|
|
utils.GetLogInstance().Warn("[SYNC] unable to setup client")
|
|
return response, nil
|
|
}
|
|
utils.GetLogInstance().Debug("[SYNC] client setup correctly", "client", client)
|
|
config := &syncConfig{timestamp: time.Now().UnixNano(), client: client}
|
|
node.stateMutex.Lock()
|
|
node.peerRegistrationRecord[peerID] = config
|
|
node.stateMutex.Unlock()
|
|
utils.GetLogInstance().Debug("[SYNC] register peerID success", "peerID", peerID)
|
|
response.Type = downloader_pb.DownloaderResponse_SUCCESS
|
|
}
|
|
case downloader_pb.DownloaderRequest_REGISTERTIMEOUT:
|
|
if node.State == NodeNotInSync {
|
|
count := node.stateSync.RegisterNodeInfo()
|
|
utils.GetLogInstance().Debug("[SYNC] extra node registered", "number", count)
|
|
}
|
|
}
|
|
return response, nil
|
|
}
|
|
|
|
// SendNewBlockToUnsync send latest verified block to unsync, registered nodes
|
|
func (node *Node) SendNewBlockToUnsync() {
|
|
for {
|
|
block := <-node.Consensus.VerifiedNewBlock
|
|
blockHash, err := rlp.EncodeToBytes(block)
|
|
if err != nil {
|
|
utils.GetLogInstance().Warn("[SYNC] unable to encode block to hashes")
|
|
continue
|
|
}
|
|
|
|
// really need to have a unique id independent of ip/port
|
|
selfPeerID := utils.GetUniqueIDFromIPPort(node.SelfPeer.IP, node.SelfPeer.Port)
|
|
utils.GetLogInstance().Debug("[SYNC] peerRegistration Record", "peerID", selfPeerID, "number", len(node.peerRegistrationRecord))
|
|
|
|
for peerID, config := range node.peerRegistrationRecord {
|
|
elapseTime := time.Now().UnixNano() - config.timestamp
|
|
if elapseTime > broadcastTimeout {
|
|
utils.GetLogInstance().Warn("[SYNC] SendNewBlockToUnsync to peer timeout", "peerID", peerID)
|
|
// send last time and delete
|
|
config.client.PushNewBlock(selfPeerID, blockHash, true)
|
|
node.stateMutex.Lock()
|
|
node.peerRegistrationRecord[peerID].client.Close()
|
|
delete(node.peerRegistrationRecord, peerID)
|
|
node.stateMutex.Unlock()
|
|
continue
|
|
}
|
|
response := config.client.PushNewBlock(selfPeerID, blockHash, false)
|
|
if response != nil && response.Type == downloader_pb.DownloaderResponse_INSYNC {
|
|
node.stateMutex.Lock()
|
|
node.peerRegistrationRecord[peerID].client.Close()
|
|
delete(node.peerRegistrationRecord, peerID)
|
|
node.stateMutex.Unlock()
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// RemovePeersHandler is a goroutine to wait on the OfflinePeers channel
|
|
// and remove the peers from validator list
|
|
func (node *Node) RemovePeersHandler() {
|
|
for {
|
|
select {
|
|
case p := <-node.OfflinePeers:
|
|
node.Consensus.OfflinePeerList = append(node.Consensus.OfflinePeerList, p)
|
|
}
|
|
}
|
|
}
|
|
|
|
//UpdateStakingList updates the stakes of every node.
|
|
func (node *Node) UpdateStakingList(block *types.Block) error {
|
|
signerType := types.HomesteadSigner{}
|
|
txns := block.Transactions()
|
|
for i := range txns {
|
|
txn := txns[i]
|
|
value := txn.Value().Int64()
|
|
currentSender, _ := types.Sender(signerType, txn)
|
|
_, isPresent := node.CurrentStakes[currentSender]
|
|
toAddress := txn.To()
|
|
if *toAddress != node.StakingContractAddress { //Not a address aimed at the staking contract.
|
|
continue
|
|
}
|
|
//This should be based on a switch case on function signature.
|
|
//TODO (ak) https://github.com/harmony-one/harmony/issues/430
|
|
if value > int64(0) { //If value >0 means its a staking deposit transaction
|
|
if isPresent {
|
|
//This means this node has increaserd its stake
|
|
node.CurrentStakes[currentSender] += value
|
|
} else {
|
|
node.CurrentStakes[currentSender] = value
|
|
}
|
|
} else { //This means node has withdrawn stake.
|
|
getData := txn.Data()
|
|
value := decodeStakeCall(getData) //Value being withdrawn
|
|
if isPresent {
|
|
//This means this node has increaserd its stake
|
|
if node.CurrentStakes[currentSender] > value {
|
|
node.CurrentStakes[currentSender] -= value
|
|
} else if node.CurrentStakes[currentSender] == value {
|
|
delete(node.CurrentStakes, currentSender)
|
|
} else {
|
|
continue //Overdraft protection.
|
|
}
|
|
} else {
|
|
node.CurrentStakes[currentSender] = value
|
|
}
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func decodeStakeCall(getData []byte) int64 {
|
|
value := new(big.Int)
|
|
value.SetBytes(getData[4:]) //Escape the method call.
|
|
return value.Int64()
|
|
}
|
|
func (node *Node) setupForShardLeader() {
|
|
// Register explorer service.
|
|
node.serviceManager.RegisterService(service_manager.SupportExplorer, explorer.New(&node.SelfPeer))
|
|
// Register consensus service.
|
|
node.serviceManager.RegisterService(service_manager.Consensus, consensus_service.New(node.BlockChannel, node.Consensus))
|
|
// Register new block service.
|
|
node.serviceManager.RegisterService(service_manager.BlockProposal, blockproposal.New(node.Consensus.ReadySignal, node.WaitForConsensusReady))
|
|
// Register client support service.
|
|
node.serviceManager.RegisterService(service_manager.ClientSupport, clientsupport.New(node.blockchain.State, node.CallFaucetContract, node.getDeployedStakingContract, node.SelfPeer.IP, node.SelfPeer.Port))
|
|
// Register randomness service
|
|
node.serviceManager.RegisterService(service_manager.Randomness, randomness_service.New(node.DRand))
|
|
}
|
|
|
|
func (node *Node) setupForShardValidator() {
|
|
}
|
|
|
|
func (node *Node) setupForBeaconLeader() {
|
|
chanPeer := make(chan p2p.Peer)
|
|
|
|
var err error
|
|
node.groupReceiver, err = node.host.GroupReceiver(p2p.GroupIDBeacon)
|
|
if err != nil {
|
|
utils.GetLogInstance().Error("create group receiver error", "msg", err)
|
|
return
|
|
}
|
|
|
|
// Register peer discovery service. "0" is the beacon shard ID. No need to do staking for beacon chain node.
|
|
node.serviceManager.RegisterService(service_manager.PeerDiscovery, discovery.New(node.host, "0", chanPeer, nil))
|
|
// Register networkinfo service. "0" is the beacon shard ID
|
|
node.serviceManager.RegisterService(service_manager.NetworkInfo, networkinfo.New(node.host, "0", chanPeer))
|
|
|
|
// Register consensus service.
|
|
node.serviceManager.RegisterService(service_manager.Consensus, consensus_service.New(node.BlockChannel, node.Consensus))
|
|
// Register new block service.
|
|
node.serviceManager.RegisterService(service_manager.BlockProposal, blockproposal.New(node.Consensus.ReadySignal, node.WaitForConsensusReady))
|
|
// Register client support service.
|
|
node.serviceManager.RegisterService(service_manager.ClientSupport, clientsupport.New(node.blockchain.State, node.CallFaucetContract, node.getDeployedStakingContract, node.SelfPeer.IP, node.SelfPeer.Port))
|
|
// Register randomness service
|
|
node.serviceManager.RegisterService(service_manager.Randomness, randomness_service.New(node.DRand))
|
|
|
|
}
|
|
|
|
func (node *Node) setupForBeaconValidator() {
|
|
chanPeer := make(chan p2p.Peer)
|
|
|
|
var err error
|
|
node.groupReceiver, err = node.host.GroupReceiver(p2p.GroupIDBeacon)
|
|
if err != nil {
|
|
utils.GetLogInstance().Error("create group receiver error", "msg", err)
|
|
return
|
|
}
|
|
|
|
// Register peer discovery service. "0" is the beacon shard ID. No need to do staking for beacon chain node.
|
|
node.serviceManager.RegisterService(service_manager.PeerDiscovery, discovery.New(node.host, "0", chanPeer, nil))
|
|
// Register networkinfo service. "0" is the beacon shard ID
|
|
node.serviceManager.RegisterService(service_manager.NetworkInfo, networkinfo.New(node.host, "0", chanPeer))
|
|
// Register randomness service
|
|
node.serviceManager.RegisterService(service_manager.Randomness, randomness_service.New(node.DRand))
|
|
}
|
|
|
|
func (node *Node) setupForNewNode() {
|
|
chanPeer := make(chan p2p.Peer)
|
|
stakingPeer := make(chan p2p.Peer)
|
|
|
|
var err error
|
|
node.groupReceiver, err = node.host.GroupReceiver(p2p.GroupIDBeacon)
|
|
if err != nil {
|
|
utils.GetLogInstance().Error("create group receiver error", "msg", err)
|
|
return
|
|
}
|
|
|
|
// Register staking service.
|
|
node.serviceManager.RegisterService(service_manager.Staking, staking.New(node.AccountKey, 0, stakingPeer))
|
|
// Register peer discovery service. "0" is the beacon shard ID
|
|
node.serviceManager.RegisterService(service_manager.PeerDiscovery, discovery.New(node.host, "0", chanPeer, stakingPeer))
|
|
// Register networkinfo service. "0" is the beacon shard ID
|
|
node.serviceManager.RegisterService(service_manager.NetworkInfo, networkinfo.New(node.host, "0", chanPeer))
|
|
|
|
// TODO: how to restart networkinfo and discovery service after receiving shard id info from beacon chain?
|
|
}
|
|
|
|
// ServiceManagerSetup setups service store.
|
|
func (node *Node) ServiceManagerSetup() {
|
|
node.serviceManager = &service_manager.Manager{}
|
|
switch node.Role {
|
|
case ShardLeader:
|
|
node.setupForShardLeader()
|
|
case ShardValidator:
|
|
node.setupForShardValidator()
|
|
case BeaconLeader:
|
|
node.setupForBeaconLeader()
|
|
case BeaconValidator:
|
|
node.setupForBeaconValidator()
|
|
case NewNode:
|
|
node.setupForNewNode()
|
|
}
|
|
}
|
|
|
|
// RunServices runs registered services.
|
|
func (node *Node) RunServices() {
|
|
if node.serviceManager == nil {
|
|
utils.GetLogInstance().Info("Service manager is not set up yet.")
|
|
return
|
|
}
|
|
node.serviceManager.RunServices()
|
|
}
|
|
|