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core, eth: split eth package, implement snap protocol (#21482)

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This commit splits the eth package, separating the handling of eth and snap protocols. It also includes the capability to run snap sync (https://github.com/ethereum/devp2p/blob/master/caps/snap.md) , but does not enable it by default. 

Co-authored-by: Marius van der Wijden <m.vanderwijden@live.de>
Co-authored-by: Martin Holst Swende <martin@swende.se>
This commit is contained in:
Péter Szilágyi
2020-12-14 11:27:15 +02:00
committed by GitHub
parent 00d10e610f
commit 017831dd5b
74 changed files with 8246 additions and 3411 deletions
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13
les/peer.go
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@ -31,7 +31,6 @@ import (
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/forkid"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/les/flowcontrol"
lpc "github.com/ethereum/go-ethereum/les/lespay/client"
lps "github.com/ethereum/go-ethereum/les/lespay/server"
@ -162,9 +161,17 @@ func (p *peerCommons) String() string {
return fmt.Sprintf("Peer %s [%s]", p.id, fmt.Sprintf("les/%d", p.version))
}
// PeerInfo represents a short summary of the `eth` sub-protocol metadata known
// about a connected peer.
type PeerInfo struct {
Version int `json:"version"` // Ethereum protocol version negotiated
Difficulty *big.Int `json:"difficulty"` // Total difficulty of the peer's blockchain
Head string `json:"head"` // SHA3 hash of the peer's best owned block
}
// Info gathers and returns a collection of metadata known about a peer.
func (p *peerCommons) Info() *eth.PeerInfo {
return &eth.PeerInfo{
func (p *peerCommons) Info() *PeerInfo {
return &PeerInfo{
Version: p.version,
Difficulty: p.Td(),
Head: fmt.Sprintf("%x", p.Head()),