This repository has been archived by the owner on Apr 11, 2021. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 25
/
api_backend.go
202 lines (165 loc) · 6.69 KB
/
api_backend.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
// Copyright 2016 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 les
import (
"context"
"math/big"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/math"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/bloombits"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/eth/downloader"
"github.com/ethereum/go-ethereum/eth/gasprice"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/light"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/rpc"
)
type LesApiBackend struct {
eth *LightEthereum
gpo *gasprice.Oracle
}
func (b *LesApiBackend) ChainConfig() *params.ChainConfig {
return b.eth.chainConfig
}
func (b *LesApiBackend) CurrentBlock() *types.Block {
return types.NewBlockWithHeader(b.eth.BlockChain().CurrentHeader())
}
func (b *LesApiBackend) SetHead(number uint64) {
b.eth.protocolManager.downloader.Cancel()
b.eth.blockchain.SetHead(number)
}
func (b *LesApiBackend) HeaderByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*types.Header, error) {
if blockNr == rpc.LatestBlockNumber || blockNr == rpc.PendingBlockNumber {
return b.eth.blockchain.CurrentHeader(), nil
}
return b.eth.blockchain.GetHeaderByNumberOdr(ctx, uint64(blockNr))
}
func (b *LesApiBackend) HeaderByHash(ctx context.Context, hash common.Hash) (*types.Header, error) {
return b.eth.blockchain.GetHeaderByHash(hash), nil
}
func (b *LesApiBackend) BlockByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*types.Block, error) {
header, err := b.HeaderByNumber(ctx, blockNr)
if header == nil || err != nil {
return nil, err
}
return b.GetBlock(ctx, header.Hash())
}
func (b *LesApiBackend) StateAndHeaderByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*state.StateDB, *types.Header, error) {
header, err := b.HeaderByNumber(ctx, blockNr)
if header == nil || err != nil {
return nil, nil, err
}
return light.NewState(ctx, header, b.eth.odr), header, nil
}
func (b *LesApiBackend) GetBlock(ctx context.Context, blockHash common.Hash) (*types.Block, error) {
return b.eth.blockchain.GetBlockByHash(ctx, blockHash)
}
func (b *LesApiBackend) GetReceipts(ctx context.Context, hash common.Hash) (types.Receipts, error) {
if number := rawdb.ReadHeaderNumber(b.eth.chainDb, hash); number != nil {
return light.GetBlockReceipts(ctx, b.eth.odr, hash, *number)
}
return nil, nil
}
func (b *LesApiBackend) GetLogs(ctx context.Context, hash common.Hash) ([][]*types.Log, error) {
if number := rawdb.ReadHeaderNumber(b.eth.chainDb, hash); number != nil {
return light.GetBlockLogs(ctx, b.eth.odr, hash, *number)
}
return nil, nil
}
func (b *LesApiBackend) GetTd(hash common.Hash) *big.Int {
return b.eth.blockchain.GetTdByHash(hash)
}
func (b *LesApiBackend) GetEVM(ctx context.Context, msg core.Message, state *state.StateDB, header *types.Header, vmCfg vm.Config) (*vm.EVM, func() error, error) {
state.SetBalance(msg.From(), math.MaxBig256)
context := core.NewEVMContext(msg, header, b.eth.blockchain, nil)
return vm.NewEVM(context, state, b.eth.chainConfig, vmCfg), state.Error, nil
}
func (b *LesApiBackend) SendTx(ctx context.Context, signedTx *types.Transaction) error {
return b.eth.txPool.Add(ctx, signedTx)
}
func (b *LesApiBackend) RemoveTx(txHash common.Hash) {
b.eth.txPool.RemoveTx(txHash)
}
func (b *LesApiBackend) GetPoolTransactions() (types.Transactions, error) {
return b.eth.txPool.GetTransactions()
}
func (b *LesApiBackend) GetPoolTransaction(txHash common.Hash) *types.Transaction {
return b.eth.txPool.GetTransaction(txHash)
}
func (b *LesApiBackend) GetPoolNonce(ctx context.Context, addr common.Address) (uint64, error) {
return b.eth.txPool.GetNonce(ctx, addr)
}
func (b *LesApiBackend) Stats() (pending int, queued int) {
return b.eth.txPool.Stats(), 0
}
func (b *LesApiBackend) TxPoolContent() (map[common.Address]types.Transactions, map[common.Address]types.Transactions) {
return b.eth.txPool.Content()
}
func (b *LesApiBackend) SubscribeNewTxsEvent(ch chan<- core.NewTxsEvent) event.Subscription {
return b.eth.txPool.SubscribeNewTxsEvent(ch)
}
func (b *LesApiBackend) SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription {
return b.eth.blockchain.SubscribeChainEvent(ch)
}
func (b *LesApiBackend) SubscribeChainHeadEvent(ch chan<- core.ChainHeadEvent) event.Subscription {
return b.eth.blockchain.SubscribeChainHeadEvent(ch)
}
func (b *LesApiBackend) SubscribeChainSideEvent(ch chan<- core.ChainSideEvent) event.Subscription {
return b.eth.blockchain.SubscribeChainSideEvent(ch)
}
func (b *LesApiBackend) SubscribeLogsEvent(ch chan<- []*types.Log) event.Subscription {
return b.eth.blockchain.SubscribeLogsEvent(ch)
}
func (b *LesApiBackend) SubscribeRemovedLogsEvent(ch chan<- core.RemovedLogsEvent) event.Subscription {
return b.eth.blockchain.SubscribeRemovedLogsEvent(ch)
}
func (b *LesApiBackend) Downloader() *downloader.Downloader {
return b.eth.Downloader()
}
func (b *LesApiBackend) ProtocolVersion() int {
return b.eth.LesVersion() + 10000
}
func (b *LesApiBackend) SuggestPrice(ctx context.Context) (*big.Int, error) {
return b.gpo.SuggestPrice(ctx)
}
func (b *LesApiBackend) ChainDb() ethdb.Database {
return b.eth.chainDb
}
func (b *LesApiBackend) EventMux() *event.TypeMux {
return b.eth.eventMux
}
func (b *LesApiBackend) AccountManager() *accounts.Manager {
return b.eth.accountManager
}
func (b *LesApiBackend) BloomStatus() (uint64, uint64) {
if b.eth.bloomIndexer == nil {
return 0, 0
}
sections, _, _ := b.eth.bloomIndexer.Sections()
return light.BloomTrieFrequency, sections
}
func (b *LesApiBackend) ServiceFilter(ctx context.Context, session *bloombits.MatcherSession) {
for i := 0; i < bloomFilterThreads; i++ {
go session.Multiplex(bloomRetrievalBatch, bloomRetrievalWait, b.eth.bloomRequests)
}
}