github.com/n1ghtfa1l/go-vnt@v0.6.4-alpha.6/vnt/downloader/types.go (about) 1 // Copyright 2015 The go-ethereum Authors 2 // This file is part of the go-ethereum library. 3 // 4 // The go-ethereum library is free software: you can redistribute it and/or modify 5 // it under the terms of the GNU Lesser General Public License as published by 6 // the Free Software Foundation, either version 3 of the License, or 7 // (at your option) any later version. 8 // 9 // The go-ethereum library is distributed in the hope that it will be useful, 10 // but WITHOUT ANY WARRANTY; without even the implied warranty of 11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 // GNU Lesser General Public License for more details. 13 // 14 // You should have received a copy of the GNU Lesser General Public License 15 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. 16 17 package downloader 18 19 import ( 20 "fmt" 21 22 libp2p "github.com/libp2p/go-libp2p-peer" 23 "github.com/vntchain/go-vnt/core/types" 24 ) 25 26 // peerDropFn is a callback type for dropping a peer detected as malicious. 27 type peerDropFn func(id libp2p.ID) 28 29 // dataPack is a data message returned by a peer for some query. 30 type dataPack interface { 31 PeerId() libp2p.ID 32 Items() int 33 Stats() string 34 } 35 36 // headerPack is a batch of block headers returned by a peer. 37 type headerPack struct { 38 peerId libp2p.ID 39 headers []*types.Header 40 } 41 42 func (p *headerPack) PeerId() libp2p.ID { return p.peerId } 43 func (p *headerPack) Items() int { return len(p.headers) } 44 func (p *headerPack) Stats() string { return fmt.Sprintf("%d", len(p.headers)) } 45 46 // bodyPack is a batch of block bodies returned by a peer. 47 type bodyPack struct { 48 peerId libp2p.ID 49 transactions [][]*types.Transaction 50 } 51 52 func (p *bodyPack) PeerId() libp2p.ID { return p.peerId } 53 func (p *bodyPack) Items() int { 54 return len(p.transactions) 55 } 56 func (p *bodyPack) Stats() string { return fmt.Sprintf("%d", len(p.transactions)) } 57 58 // receiptPack is a batch of receipts returned by a peer. 59 type receiptPack struct { 60 peerId libp2p.ID 61 receipts [][]*types.Receipt 62 } 63 64 func (p *receiptPack) PeerId() libp2p.ID { return p.peerId } 65 func (p *receiptPack) Items() int { return len(p.receipts) } 66 func (p *receiptPack) Stats() string { return fmt.Sprintf("%d", len(p.receipts)) } 67 68 // statePack is a batch of states returned by a peer. 69 type statePack struct { 70 peerId libp2p.ID 71 states [][]byte 72 } 73 74 func (p *statePack) PeerId() libp2p.ID { return p.peerId } 75 func (p *statePack) Items() int { return len(p.states) } 76 func (p *statePack) Stats() string { return fmt.Sprintf("%d", len(p.states)) }