neo-go/pkg/network/peer.go
Roman Khimov 2c4ace022e network/config: redesign ping timeout handling a bit
1) Make timeout a timeout, don't do magic ping counts.
2) Drop additional timer from the main peer's protocol loop, create it
   dynamically and make it disconnect the peer.
3) Don't expose the ping counter to the outside, handle more logic inside the
   Peer.

Relates to #430.
2020-01-20 19:37:17 +03:00

55 lines
2 KiB
Go

package network
import (
"net"
"github.com/CityOfZion/neo-go/pkg/network/payload"
)
// Peer represents a network node neo-go is connected to.
type Peer interface {
// RemoteAddr returns the remote address that we're connected to now.
RemoteAddr() net.Addr
// PeerAddr returns the remote address that should be used to establish
// a new connection to the node. It can differ from the RemoteAddr
// address in case where the remote node is a client and its current
// connection port is different from the one the other node should use
// to connect to it. It's only valid after the handshake is completed,
// before that it returns the same address as RemoteAddr.
PeerAddr() net.Addr
Disconnect(error)
// EnqueueMessage is a temporary wrapper that sends a message via
// EnqueuePacket if there is no error in serializing it.
EnqueueMessage(*Message) error
// EnqueuePacket is a blocking packet enqueuer, it doesn't return until
// it puts given packet into the queue. It accepts a slice of bytes that
// can be shared with other queues (so that message marshalling can be
// done once for all peers). Does nothing is the peer is not yet
// completed handshaking.
EnqueuePacket([]byte) error
// EnqueueHPPacket is a blocking high priority packet enqueuer, it
// doesn't return until it puts given packet into the high-priority
// queue.
EnqueueHPPacket([]byte) error
Version() *payload.Version
LastBlockIndex() uint32
Handshaked() bool
// SendPing enqueues a ping message to be sent to the peer and does
// appropriate protocol handling like timeouts and outstanding pings
// management.
SendPing() error
SendVersion(*Message) error
SendVersionAck(*Message) error
// StartProtocol is a goroutine to be run after the handshake. It
// implements basic peer-related protocol handling.
StartProtocol()
HandleVersion(*payload.Version) error
HandleVersionAck() error
// HandlePong checks pong contents against Peer's state and updates it.
HandlePong(pong *payload.Ping) error
}