49 lines
1.8 KiB
Go
49 lines
1.8 KiB
Go
// Copyright 2020 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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package eth
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import (
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/eth/protocols/snap"
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"github.com/ethereum/go-ethereum/p2p/enode"
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)
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// snapHandler implements the snap.Backend interface to handle the various network
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// packets that are sent as replies or broadcasts.
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type snapHandler handler
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func (h *snapHandler) Chain() *core.BlockChain { return h.chain }
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// RunPeer is invoked when a peer joins on the `snap` protocol.
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func (h *snapHandler) RunPeer(peer *snap.Peer, hand snap.Handler) error {
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return (*handler)(h).runSnapPeer(peer, hand)
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}
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// PeerInfo retrieves all known `snap` information about a peer.
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func (h *snapHandler) PeerInfo(id enode.ID) interface{} {
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if p := h.peers.snapPeer(id.String()); p != nil {
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return p.info()
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}
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return nil
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}
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// Handle is invoked from a peer's message handler when it receives a new remote
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// message that the handler couldn't consume and serve itself.
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func (h *snapHandler) Handle(peer *snap.Peer, packet snap.Packet) error {
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return h.downloader.DeliverSnapPacket(peer, packet)
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}
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