p2p

package
v3.8.4 Latest Latest
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 Go to latest Published: Jun 10, 2022 License: LGPL-3.0 Imports: 40 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var (
	ErrMessageChannelFull = errors.New("message channel is full")
	ErrDuplicateMessage   = errors.New("reduplicate message")
)

errors

View Source 
var (
	ErrPortUnavailable = errors.New("port is unavailable")
)

errors

Functions

func Ping 

func Ping(rw http.ResponseWriter, r *http.Request)

Ping returns a "pong" to client.

Types

type IncomingMessage 

type IncomingMessage struct {
	// contains filtered or unexported fields
}

IncomingMessage is the struct which would be sent to the upstream.

func NewIncomingMessage 

func NewIncomingMessage(peerID PeerID, data []byte, messageType MessageType) *IncomingMessage

NewIncomingMessage returns a IncomingMessage instance.

func (*IncomingMessage) Data 

func (m *IncomingMessage) Data() []byte

Data returns the bytes.

func (*IncomingMessage) From 

func (m *IncomingMessage) From() PeerID

From returns the peerID who sends the message.

func (*IncomingMessage) Type 

func (m *IncomingMessage) Type() MessageType

Type returns the message type.

type MessagePriority 

type MessagePriority uint8

MessagePriority represents the message priority.

type MessageType 

type MessageType uint16

MessageType represents the message type. 

const (
	RoutingTableQuery MessageType
	RoutingTableResponse
	NewBlock
	NewBlockHash
	NewBlockRequest
	SyncBlockHashRequest
	SyncBlockHashResponse
	SyncBlockRequest
	SyncBlockResponse
	SyncHeight
	PublishTx

	UrgentMessage = 1
	NormalMessage = 2
)

consts.

func (MessageType) String 

func (m MessageType) String() string

type NetService 

type NetService struct {
	*PeerManager
	// contains filtered or unexported fields
}

NetService is the implementation of Service interface.

func NewNetService 

func NewNetService(config *common.P2PConfig) (*NetService, error)

NewNetService returns a NetService instance with the config argument.

func (*NetService) ID 

func (ns *NetService) ID() string

ID returns the host's ID.

func (*NetService) LocalAddrs 

func (ns *NetService) LocalAddrs() []multiaddr.Multiaddr

LocalAddrs returns the local's multiaddrs.

func (*NetService) Start 

func (ns *NetService) Start() error

Start starts the jobs.

func (*NetService) Stop 

func (ns *NetService) Stop()

Stop stops all the jobs.

type Peer 

type Peer struct {
	// contains filtered or unexported fields
}

Peer represents a neighbor which we connect directily.

Peer's jobs are:

  • managing streams which are responsible for sending and reading messages.
  • recording messages we have sent and received so as to reduce redundant message in network.
  • maintaning a priority queue of message to be sending.

func NewPeer 

func NewPeer(stream libnet.Stream, pm *PeerManager, direction connDirection) *Peer

NewPeer returns a new instance of Peer struct.

func (*Peer) Addr 

func (p *Peer) Addr() string

Addr return the address.

func (*Peer) ID 

func (p *Peer) ID() string

ID return the net id.

func (*Peer) IsOutbound added in v3.8.4 

func (p *Peer) IsOutbound() bool

func (*Peer) SendMessage 

func (p *Peer) SendMessage(msg *p2pMessage, mp MessagePriority, deduplicate bool) error

SendMessage puts message into the corresponding channel.

func (*Peer) Start 

func (p *Peer) Start()

Start starts peer's loop.

func (*Peer) Stop 

func (p *Peer) Stop()

Stop stops peer's loop and cuts off the TCP connection.

type PeerID 

type PeerID = peer.ID

PeerID is the alias of peer.ID

type PeerManager 

type PeerManager struct {
	// contains filtered or unexported fields
}

PeerManager manages all peers we connect directily.

PeerManager's jobs are:

  • holding a certain amount of peers.
  • handling messages according to its type.
  • discovering peers and maintaining routing table.

func NewPeerManager 

func NewPeerManager(host host.Host, config *common.P2PConfig) *PeerManager

NewPeerManager returns a new instance of PeerManager struct.

func (*PeerManager) AddNeighbor 

func (pm *PeerManager) AddNeighbor(p *Peer)

AddNeighbor starts a peer and adds it to the neighbor list.

func (*PeerManager) AllNeighborCount 

func (pm *PeerManager) AllNeighborCount() int

AllNeighborCount returns the total neighbor amount.

func (*PeerManager) Broadcast 

func (pm *PeerManager) Broadcast(data []byte, typ MessageType, mp MessagePriority)

Broadcast sends message to all the neighbors.

func (*PeerManager) CloseAllNeighbors 

func (pm *PeerManager) CloseAllNeighbors()

CloseAllNeighbors close all connections.

func (*PeerManager) ConnectBPs 

func (pm *PeerManager) ConnectBPs(ids []string)

ConnectBPs makes the local host connected to the block producers directly.

func (*PeerManager) Deregister 

func (pm *PeerManager) Deregister(id string, mTyps ...MessageType)

Deregister deregisters a message channel of the given types.

func (*PeerManager) DumpRoutingTable 

func (pm *PeerManager) DumpRoutingTable()

DumpRoutingTable saves routing table in file.

func (*PeerManager) GetAllNeighbors 

func (pm *PeerManager) GetAllNeighbors() []*Peer

GetAllNeighbors returns the peer of the given peerID from the neighbor list.

func (*PeerManager) GetNeighbor 

func (pm *PeerManager) GetNeighbor(peerID peer.ID) *Peer

GetNeighbor returns the peer of the given peerID from the neighbor list.

func (*PeerManager) HandleMessage 

func (pm *PeerManager) HandleMessage(msg *p2pMessage, peerID peer.ID)

HandleMessage handles messages according to its type.

func (*PeerManager) HandleStream 

func (pm *PeerManager) HandleStream(s libnet.Stream, direction connDirection)

HandleStream handles the incoming stream.

It checks whether the remote peer already exists. If the peer is new and the neighbor count doesn't reach the threshold, it adds the peer into the neighbor list. If peer already exits, just add the stream to the peer. In other cases, reset the stream.

func (*PeerManager) LoadRoutingTable 

func (pm *PeerManager) LoadRoutingTable()

LoadRoutingTable reads routing table file and parses it.

func (*PeerManager) NeighborCount 

func (pm *PeerManager) NeighborCount(direction connDirection) int

NeighborCount returns the neighbor amount of the given direction.

func (*PeerManager) NeighborStat 

func (pm *PeerManager) NeighborStat() map[string]any

NeighborStat dumps neighbors' status for debug.

func (*PeerManager) PutIPToBlack 

func (pm *PeerManager) PutIPToBlack(ip string)

PutIPToBlack puts the ip to black list.

func (*PeerManager) PutPIDToBlack 

func (pm *PeerManager) PutPIDToBlack(pid peer.ID)

PutPIDToBlack puts the PID and corresponding ip to black list.

func (*PeerManager) PutPeerToBlack 

func (pm *PeerManager) PutPeerToBlack(id string)

PutPeerToBlack puts the peer's PID and IP to black list and close the connection.

func (*PeerManager) Register 

func (pm *PeerManager) Register(id string, mTyps ...MessageType) chan IncomingMessage

Register registers a message channel of the given types.

func (*PeerManager) RemoveNeighbor 

func (pm *PeerManager) RemoveNeighbor(peerID peer.ID)

RemoveNeighbor stops a peer and removes it from the neighbor list.

func (*PeerManager) SendToPeer 

func (pm *PeerManager) SendToPeer(peerID peer.ID, data []byte, typ MessageType, mp MessagePriority)

SendToPeer sends message to the specified peer.

func (*PeerManager) Start 

func (pm *PeerManager) Start()

Start starts peer manager's job.

func (*PeerManager) Stop 

func (pm *PeerManager) Stop()

Stop stops peer manager's loop.

type Service 

type Service interface {
	Start() error
	Stop()

	ID() string
	ConnectBPs([]string)
	PutPeerToBlack(string)

	Broadcast([]byte, MessageType, MessagePriority)
	SendToPeer(PeerID, []byte, MessageType, MessagePriority)
	Register(string, ...MessageType) chan IncomingMessage
	Deregister(string, ...MessageType)

	GetAllNeighbors() []*Peer
}

Service defines all the API of p2p package.

Source Files

View all Source files

Directories

Path Synopsis
Package p2p_mock is a generated GoMock package.
 Package p2p_mock is a generated GoMock package.

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