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v0.2.3 Latest Latest
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 Go to latest Published: Jun 9, 2022 License: LGPL-3.0 Imports: 10 Imported by: 1

Documentation

Index

Constants

View Source 
const (
	// TxMsgSoftCapSize is the ideal size of encoded transaction bytes we send in
	// any [Txs] message. We do not limit inbound messages to
	// this size, however. Max inbound message size is enforced by the codec
	// (512KB).
	TxMsgSoftCapSize = common.StorageSize(64 * units.KiB)
)
View Source 
const (
	Version = uint16(0)
)

Variables

This section is empty.

Functions

func BuildCodec added in v0.1.1 

func BuildCodec() (codec.Manager, error)

func BuildGossipMessage added in v0.2.1 

func BuildGossipMessage(codec codec.Manager, msg GossipMessage) ([]byte, error)

func RequestToBytes added in v0.1.1 

func RequestToBytes(codec codec.Manager, request Request) ([]byte, error)

RequestToBytes marshals the given request object into bytes

Types

type BlockRequest added in v0.2.1 

type BlockRequest struct {
	Hash    common.Hash `serialize:"true"`
	Height  uint64      `serialize:"true"`
	Parents uint16      `serialize:"true"`
}

BlockRequest is a request to retrieve Parents number of blocks starting from Hash from newest-oldest manner

func (BlockRequest) Handle added in v0.2.1 

func (b BlockRequest) Handle(ctx context.Context, nodeID ids.NodeID, requestID uint32, handler RequestHandler) ([]byte, error)

func (BlockRequest) String added in v0.2.1 

func (b BlockRequest) String() string

type BlockResponse added in v0.2.1 

type BlockResponse struct {
	Blocks [][]byte `serialize:"true"`
}

BlockResponse is a response to a BlockRequest Blocks is slice of RLP encoded blocks starting with the block requested in BlockRequest.Hash. The next block is the parent, etc. handler: handlers.BlockRequestHandler

type CodeRequest added in v0.2.1 

type CodeRequest struct {
	// Hash is the contract code hash
	Hash common.Hash `serialize:"true"`
}

CodeRequest is a request to retrieve a contract code with specified Hash

func NewCodeRequest added in v0.2.1 

func NewCodeRequest(hash common.Hash) CodeRequest

func (CodeRequest) Handle added in v0.2.1 

func (c CodeRequest) Handle(ctx context.Context, nodeID ids.NodeID, requestID uint32, handler RequestHandler) ([]byte, error)

func (CodeRequest) String added in v0.2.1 

func (c CodeRequest) String() string

type CodeResponse added in v0.2.1 

type CodeResponse struct {
	Data []byte `serialize:"true"`
}

CodeResponse is a response to a CodeRequest crypto.Keccak256Hash of Data is expected to equal CodeRequest.Hash handler: handlers.CodeRequestHandler

type GossipHandler added in v0.1.1 

type GossipHandler interface {
	HandleTxs(nodeID ids.NodeID, msg TxsGossip) error
}

GossipHandler handles incoming gossip messages

type GossipMessage added in v0.2.1 

type GossipMessage interface {
	// types implementing GossipMessage should also implement fmt.Stringer for logging purposes.
	fmt.Stringer

	// Handle this gossip message with the gossip handler.
	Handle(handler GossipHandler, nodeID ids.NodeID) error
}

func ParseGossipMessage added in v0.2.1 

func ParseGossipMessage(codec codec.Manager, bytes []byte) (GossipMessage, error)

type LeafsRequest added in v0.2.1 

type LeafsRequest struct {
	Root  common.Hash `serialize:"true"`
	Start []byte      `serialize:"true"`
	End   []byte      `serialize:"true"`
	Limit uint16      `serialize:"true"`
}

LeafsRequest is a request to receive trie leaves at specified Root within Start and End byte range Limit outlines maximum number of leaves to returns starting at Start

func (LeafsRequest) Handle added in v0.2.1 

func (l LeafsRequest) Handle(ctx context.Context, nodeID ids.NodeID, requestID uint32, handler RequestHandler) ([]byte, error)

func (LeafsRequest) String added in v0.2.1 

func (l LeafsRequest) String() string

type LeafsResponse added in v0.2.1 

type LeafsResponse struct {
	// Keys and Vals provides the key-value pairs in the trie in the response.
	Keys [][]byte `serialize:"true"`
	Vals [][]byte `serialize:"true"`

	// More indicates if there are more leaves to the right of the last value in this response.
	//
	// This is not serialized since it is set in the client after verifying the response via
	// VerifyRangeProof and determining if there are in fact more leaves to the right of the
	// last value in this response.
	More bool

	// ProofKeys and ProofVals are the key-value pairs used in the range proof of the provided key-value
	// pairs.
	ProofKeys [][]byte `serialize:"true"`
	ProofVals [][]byte `serialize:"true"`
}

LeafsResponse is a response to a LeafsRequest Keys must be within LeafsRequest.Start and LeafsRequest.End and sorted in lexicographical order.

ProofKeys and ProofVals are expected to be non-nil and valid range proofs if the key-value pairs in the response are not the entire trie. If the key-value pairs make up the entire trie, ProofKeys and ProofVals should be empty since the root will be sufficient to prove that the leaves are included in the trie.

More is a flag set in the client after verifying the response, which indicates if the last key-value pair in the response has any more elements to its right within the trie.

type NoopMempoolGossipHandler added in v0.1.1 

type NoopMempoolGossipHandler struct{}

func (NoopMempoolGossipHandler) HandleTxs added in v0.1.1 

func (NoopMempoolGossipHandler) HandleTxs(nodeID ids.NodeID, _ TxsGossip) error

type Request added in v0.1.1 

type Request interface {
	// Requests should implement String() for logging.
	fmt.Stringer

	// Handle allows `Request` to call respective methods on handler to handle
	// this particular request type
	Handle(ctx context.Context, nodeID ids.NodeID, requestID uint32, handler RequestHandler) ([]byte, error)
}

Request represents a Network request type

func BytesToRequest added in v0.1.1 

func BytesToRequest(codec codec.Manager, requestBytes []byte) (Request, error)

BytesToRequest unmarshals the given requestBytes into Request object

type RequestHandler added in v0.1.1 

type RequestHandler interface {
	HandleTrieLeafsRequest(ctx context.Context, nodeID ids.NodeID, requestID uint32, leafsRequest LeafsRequest) ([]byte, error)
	HandleBlockRequest(ctx context.Context, nodeID ids.NodeID, requestID uint32, request BlockRequest) ([]byte, error)
	HandleCodeRequest(ctx context.Context, nodeID ids.NodeID, requestID uint32, codeRequest CodeRequest) ([]byte, error)
}

RequestHandler interface handles incoming requests from peers Must have methods in format of handleType(context.Context, ids.NodeID, uint32, request Type) error so that the Request object of relevant Type can invoke its respective handle method on this struct. Also see GossipHandler for implementation style.

type ResponseHandler added in v0.1.1 

type ResponseHandler interface {
	// OnResponse is invoked when the peer responded to a request
	OnResponse(nodeID ids.NodeID, requestID uint32, response []byte) error
	// OnFailure is invoked when there was a failure in processing a request
	// The FailureReason outlines the underlying cause.
	OnFailure(nodeID ids.NodeID, requestID uint32) error
}

ResponseHandler handles response for a sent request Only one of OnResponse or OnFailure is called for a given requestID, not both

type SyncableBlock added in v0.2.1 

type SyncableBlock struct {
	BlockNumber uint64      `serialize:"true"`
	BlockRoot   common.Hash `serialize:"true"`
	AtomicRoot  common.Hash `serialize:"true"`
	BlockHash   common.Hash `serialize:"true"`
}

SyncableBlock provides the information necessary to sync a node starting at the given block.

func (SyncableBlock) String added in v0.2.1 

func (s SyncableBlock) String() string

type TxsGossip added in v0.2.1 

type TxsGossip struct {
	Txs []byte `serialize:"true"`
}

func (TxsGossip) Handle added in v0.2.1 

func (msg TxsGossip) Handle(handler GossipHandler, nodeID ids.NodeID) error

func (TxsGossip) String added in v0.2.1 

func (msg TxsGossip) String() string

Source Files

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