* eth: check snap satelliteness, delegate drop to eth * eth: better handle eth/snap satellite relation, merge reg/unreg paths
		
			
				
	
	
		
			74 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			74 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
// Copyright 2015 The go-ethereum Authors
 | 
						|
// This file is part of the go-ethereum library.
 | 
						|
//
 | 
						|
// The go-ethereum library is free software: you can redistribute it and/or modify
 | 
						|
// it under the terms of the GNU Lesser General Public License as published by
 | 
						|
// the Free Software Foundation, either version 3 of the License, or
 | 
						|
// (at your option) any later version.
 | 
						|
//
 | 
						|
// The go-ethereum library is distributed in the hope that it will be useful,
 | 
						|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
 | 
						|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 | 
						|
// GNU Lesser General Public License for more details.
 | 
						|
//
 | 
						|
// You should have received a copy of the GNU Lesser General Public License
 | 
						|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 | 
						|
 | 
						|
package eth
 | 
						|
 | 
						|
import (
 | 
						|
	"math/big"
 | 
						|
	"sync"
 | 
						|
	"time"
 | 
						|
 | 
						|
	"github.com/ethereum/go-ethereum/eth/protocols/eth"
 | 
						|
	"github.com/ethereum/go-ethereum/eth/protocols/snap"
 | 
						|
)
 | 
						|
 | 
						|
// ethPeerInfo represents a short summary of the `eth` sub-protocol metadata known
 | 
						|
// about a connected peer.
 | 
						|
type ethPeerInfo struct {
 | 
						|
	Version    uint     `json:"version"`    // Ethereum protocol version negotiated
 | 
						|
	Difficulty *big.Int `json:"difficulty"` // Total difficulty of the peer's blockchain
 | 
						|
	Head       string   `json:"head"`       // Hex hash of the peer's best owned block
 | 
						|
}
 | 
						|
 | 
						|
// ethPeer is a wrapper around eth.Peer to maintain a few extra metadata.
 | 
						|
type ethPeer struct {
 | 
						|
	*eth.Peer
 | 
						|
	snapExt *snapPeer // Satellite `snap` connection
 | 
						|
 | 
						|
	syncDrop *time.Timer   // Connection dropper if `eth` sync progress isn't validated in time
 | 
						|
	snapWait chan struct{} // Notification channel for snap connections
 | 
						|
	lock     sync.RWMutex  // Mutex protecting the internal fields
 | 
						|
}
 | 
						|
 | 
						|
// info gathers and returns some `eth` protocol metadata known about a peer.
 | 
						|
func (p *ethPeer) info() *ethPeerInfo {
 | 
						|
	hash, td := p.Head()
 | 
						|
 | 
						|
	return ðPeerInfo{
 | 
						|
		Version:    p.Version(),
 | 
						|
		Difficulty: td,
 | 
						|
		Head:       hash.Hex(),
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
// snapPeerInfo represents a short summary of the `snap` sub-protocol metadata known
 | 
						|
// about a connected peer.
 | 
						|
type snapPeerInfo struct {
 | 
						|
	Version uint `json:"version"` // Snapshot protocol version negotiated
 | 
						|
}
 | 
						|
 | 
						|
// snapPeer is a wrapper around snap.Peer to maintain a few extra metadata.
 | 
						|
type snapPeer struct {
 | 
						|
	*snap.Peer
 | 
						|
}
 | 
						|
 | 
						|
// info gathers and returns some `snap` protocol metadata known about a peer.
 | 
						|
func (p *snapPeer) info() *snapPeerInfo {
 | 
						|
	return &snapPeerInfo{
 | 
						|
		Version: p.Version(),
 | 
						|
	}
 | 
						|
}
 |