node

package
v0.8.1-alpha Latest Latest
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 Go to latest Published: Mar 18, 2019 License: Apache-2.0 Imports: 32 Imported by: 0

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Index

Constants

View Source 
const (
	HashCacheExpiration      = 3600 * time.Second
	HashCacheCleanupInterval = 60 * time.Second
)

Variables

This section is empty.

Functions

func NewGetBlockHeadersMessage 

func NewGetBlockHeadersMessage(startHeight, endHeight uint32) (*pb.UnsignedMessage, error)

NewGetBlockHeadersMessage creates a GET_BLOCK_HEADERS message

func NewGetBlockHeadersReply 

func NewGetBlockHeadersReply(headers []*ledger.Header) (*pb.UnsignedMessage, error)

NewGetBlockHeadersReply creates a GET_BLOCK_HEADERS_REPLY message in respond to GET_BLOCK_HEADERS message

func NewGetBlocksMessage 

func NewGetBlocksMessage(startHeight, endHeight uint32) (*pb.UnsignedMessage, error)

NewGetBlocksMessage creates a GET_BLOCKS message

func NewGetBlocksReply 

func NewGetBlocksReply(blocks []*ledger.Block) (*pb.UnsignedMessage, error)

NewGetBlocksReply creates a GET_BLOCKS_REPLY message in respond to GET_BLOCKS message

func NewHashCache 

func NewHashCache() *hashCache

func NewRelayMessage 

func NewRelayMessage(srcAddr string, destID, payload []byte, sigChain *por.SigChain, maxHoldingSeconds uint32) (*pb.UnsignedMessage, error)

NewRelayMessage creates a RELAY message

func NewTransactionsMessage 

func NewTransactionsMessage(transactions []*transaction.Transaction) (*pb.UnsignedMessage, error)

NewTransactionsMessage creates a TRANSACTIONS message

Types

type ChordInfo 

type ChordInfo struct {
	LocalNode    *LocalNode                     `json:"localNode"`
	Successors   []*ChordRemoteNodeInfo         `json:"successors"`
	Predecessors []*ChordRemoteNodeInfo         `json:"predecessors"`
	FingerTable  map[int][]*ChordRemoteNodeInfo `json:"fingerTable"`
}

type ChordRemoteNodeInfo 

type ChordRemoteNodeInfo nnetnode.RemoteNode

func (*ChordRemoteNodeInfo) MarshalJSON 

func (rn *ChordRemoteNodeInfo) MarshalJSON() ([]byte, error)

type LocalNode 

type LocalNode struct {
	*Node

	*pool.TxnPool // transaction pool of local node

	sync.RWMutex
	// contains filtered or unexported fields
}

func NewLocalNode 

func NewLocalNode(wallet vault.Wallet, nn *nnet.NNet) (*LocalNode, error)

func (LocalNode) AddMessageHandler 

func (handlerStore LocalNode) AddMessageHandler(messageType pb.MessageType, handler MessageHandler)

AddMessageHandler adds a message handler to a message type

func (*LocalNode) AddNbrNode 

func (nm *LocalNode) AddNbrNode(remoteNode *RemoteNode) error

func (*LocalNode) BroadcastTransaction 

func (localNode *LocalNode) BroadcastTransaction(txn *transaction.Transaction) error

BroadcastTransaction broadcast a transaction to the network using TRANSACTIONS message

func (*LocalNode) DelNbrNode 

func (nm *LocalNode) DelNbrNode(id string)

func (LocalNode) ExistHash 

func (hc LocalNode) ExistHash(hash common.Uint256) bool

func (*LocalNode) FindSuccessorAddrs 

func (localNode *LocalNode) FindSuccessorAddrs(key []byte, numSucc int) ([]string, error)

func (*LocalNode) FindWsAddr 

func (localNode *LocalNode) FindWsAddr(key []byte) (string, error)

func (*LocalNode) GetChordInfo 

func (localNode *LocalNode) GetChordInfo() *ChordInfo

func (*LocalNode) GetConnectionCnt 

func (nm *LocalNode) GetConnectionCnt() uint

func (*LocalNode) GetEvent 

func (eq *LocalNode) GetEvent(eventName string) *events.Event

func (*LocalNode) GetHeight 

func (localNode *LocalNode) GetHeight() uint32

func (LocalNode) GetMessageHandlers 

func (handlerStore LocalNode) GetMessageHandlers(messageType pb.MessageType) []MessageHandler

GetMessageHandlers gets all handlers of a message type

func (*LocalNode) GetNbrNode 

func (nm *LocalNode) GetNbrNode(id string) *RemoteNode

func (*LocalNode) GetNeighborHeights 

func (nm *LocalNode) GetNeighborHeights() ([]uint32, uint)

func (*LocalNode) GetNeighborInfo 

func (localNode *LocalNode) GetNeighborInfo() []*RemoteNode

func (*LocalNode) GetNeighbors 

func (nm *LocalNode) GetNeighbors(filter func(*RemoteNode) bool) []*RemoteNode

func (*LocalNode) GetRelayMessageCount 

func (localNode *LocalNode) GetRelayMessageCount() uint64

func (*LocalNode) GetTxnPool 

func (localNode *LocalNode) GetTxnPool() *pool.TxnPool

func (*LocalNode) GetWsAddr 

func (localNode *LocalNode) GetWsAddr() string

func (*LocalNode) IncrementRelayMessageCount 

func (localNode *LocalNode) IncrementRelayMessageCount()

func (*LocalNode) MarshalJSON 

func (localNode *LocalNode) MarshalJSON() ([]byte, error)

func (*LocalNode) ResetSyncing 

func (localNode *LocalNode) ResetSyncing()

ResetSyncing resets syncOnce and allows for future block syncing

func (*LocalNode) SendRelayMessage 

func (localNode *LocalNode) SendRelayMessage(srcAddr, destAddr string, payload, signature []byte, maxHoldingSeconds uint32) error

func (*LocalNode) SerializeMessage 

func (localNode *LocalNode) SerializeMessage(unsignedMsg *pb.UnsignedMessage, sign bool) ([]byte, error)

func (*LocalNode) SetSyncState 

func (localNode *LocalNode) SetSyncState(s pb.SyncState)

func (*LocalNode) Start 

func (localNode *LocalNode) Start() error

func (*LocalNode) StartSyncing 

func (localNode *LocalNode) StartSyncing(stopHash common.Uint256, stopHeight uint32, neighbors []*RemoteNode) (bool, error)

StartSyncing starts block syncing from current local ledger until it gets to block height stopHeight with block hash stopHash from given neighbors

type MessageHandler 

type MessageHandler func(msg *RemoteMessage) (reply []byte, shouldCallNext bool, err error)

MessageHandler handles a message and returns reply, if it should be passed through to other message handler and error

type Node 

type Node struct {
	*nnetpb.Node
	*pb.NodeData

	sync.RWMutex
	// contains filtered or unexported fields
}

func NewNode 

func NewNode(nnetNode *nnetpb.Node, nodeData *pb.NodeData) (*Node, error)

func (*Node) GetChordID 

func (node *Node) GetChordID() []byte

func (*Node) GetHostname 

func (node *Node) GetHostname() string

func (*Node) GetID 

func (node *Node) GetID() string

func (*Node) GetPubKey 

func (node *Node) GetPubKey() *crypto.PubKey

func (*Node) GetSyncState 

func (node *Node) GetSyncState() pb.SyncState

func (*Node) MarshalJSON 

func (node *Node) MarshalJSON() ([]byte, error)

func (*Node) SetSyncState 

func (node *Node) SetSyncState(s pb.SyncState)

type RelayService 

type RelayService struct {
	sync.Mutex
	// contains filtered or unexported fields
}

func NewRelayService 

func NewRelayService(wallet vault.Wallet, localNode *LocalNode) *RelayService

func (*RelayService) Start 

func (rs *RelayService) Start() error

type RemoteMessage 

type RemoteMessage struct {
	Sender  *Node
	Message []byte
}

RemoteMessage is the message received from remote nodes

type RemoteNode 

type RemoteNode struct {
	*Node

	sync.RWMutex
	// contains filtered or unexported fields
}

func NewRemoteNode 

func NewRemoteNode(localNode *LocalNode, nnetNode *nnetnode.RemoteNode) (*RemoteNode, error)

func (*RemoteNode) CloseConn 

func (remoteNode *RemoteNode) CloseConn()

func (*RemoteNode) GetBlockHeaders 

func (remoteNode *RemoteNode) GetBlockHeaders(startHeight, endHeight uint32) ([]*ledger.Header, error)

GetBlockHeaders requests a range of consecutive block headers from a neighbor using GET_BLOCK_HEADERS message

func (*RemoteNode) GetBlocks 

func (remoteNode *RemoteNode) GetBlocks(startHeight, endHeight uint32) ([]*ledger.Block, error)

GetBlocks requests a range of consecutive blocks from a neighbor using GET_BLOCKS message

func (*RemoteNode) GetHeight 

func (remoteNode *RemoteNode) GetHeight() uint32

func (*RemoteNode) MarshalJSON 

func (remoteNode *RemoteNode) MarshalJSON() ([]byte, error)

func (*RemoteNode) SendBytesAsync 

func (remoteNode *RemoteNode) SendBytesAsync(buf []byte) error

func (*RemoteNode) SendBytesReply 

func (remoteNode *RemoteNode) SendBytesReply(replyToID, buf []byte) error

func (*RemoteNode) SendBytesSync 

func (remoteNode *RemoteNode) SendBytesSync(buf []byte) ([]byte, error)

func (*RemoteNode) SendBytesSyncWithTimeout 

func (remoteNode *RemoteNode) SendBytesSyncWithTimeout(buf []byte, replyTimeout time.Duration) ([]byte, error)

func (*RemoteNode) SetHeight 

func (remoteNode *RemoteNode) SetHeight(height uint32)

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