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