Newer
Older
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
// Copyright 2015 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
package eth
import (
"math/big"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"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/internal/ethapi"
rpc "github.com/ethereum/go-ethereum/rpc"
"golang.org/x/net/context"
)
// EthApiBackend implements ethapi.Backend for full nodes
type EthApiBackend struct {
eth *Ethereum
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
gpo *gasprice.GasPriceOracle
}
func (b *EthApiBackend) SetHead(number uint64) {
b.eth.blockchain.SetHead(number)
}
func (b *EthApiBackend) HeaderByNumber(blockNr rpc.BlockNumber) *types.Header {
// Pending block is only known by the miner
if blockNr == rpc.PendingBlockNumber {
block, _ := b.eth.miner.Pending()
return block.Header()
}
// Otherwise resolve and return the block
if blockNr == rpc.LatestBlockNumber {
return b.eth.blockchain.CurrentBlock().Header()
}
return b.eth.blockchain.GetHeaderByNumber(uint64(blockNr))
}
func (b *EthApiBackend) BlockByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*types.Block, error) {
// Pending block is only known by the miner
if blockNr == rpc.PendingBlockNumber {
block, _ := b.eth.miner.Pending()
return block, nil
}
// Otherwise resolve and return the block
if blockNr == rpc.LatestBlockNumber {
return b.eth.blockchain.CurrentBlock(), nil
}
return b.eth.blockchain.GetBlockByNumber(uint64(blockNr)), nil
}
func (b *EthApiBackend) StateAndHeaderByNumber(blockNr rpc.BlockNumber) (ethapi.State, *types.Header, error) {
// Pending state is only known by the miner
if blockNr == rpc.PendingBlockNumber {
block, state := b.eth.miner.Pending()
return EthApiState{state}, block.Header(), nil
}
// Otherwise resolve the block number and return its state
header := b.HeaderByNumber(blockNr)
if header == nil {
return nil, nil, nil
}
stateDb, err := state.New(header.Root, b.eth.chainDb)
return EthApiState{stateDb}, header, err
}
func (b *EthApiBackend) GetBlock(ctx context.Context, blockHash common.Hash) (*types.Block, error) {
return b.eth.blockchain.GetBlockByHash(blockHash), nil
}
func (b *EthApiBackend) GetReceipts(ctx context.Context, blockHash common.Hash) (types.Receipts, error) {
return core.GetBlockReceipts(b.eth.chainDb, blockHash, core.GetBlockNumber(b.eth.chainDb, blockHash)), nil
}
func (b *EthApiBackend) GetTd(blockHash common.Hash) *big.Int {
return b.eth.blockchain.GetTdByHash(blockHash)
}
func (b *EthApiBackend) GetVMEnv(ctx context.Context, msg core.Message, state ethapi.State, header *types.Header) (vm.Environment, func() error, error) {
stateDb := state.(EthApiState).state.Copy()
addr, _ := msg.From()
from := stateDb.GetOrNewStateObject(addr)
from.SetBalance(common.MaxBig)
vmError := func() error { return nil }
return core.NewEnv(stateDb, b.eth.chainConfig, b.eth.blockchain, msg, header, b.eth.chainConfig.VmConfig), vmError, nil
}
func (b *EthApiBackend) SendTx(ctx context.Context, signedTx *types.Transaction) error {
b.eth.txMu.Lock()
defer b.eth.txMu.Unlock()
b.eth.txPool.SetLocal(signedTx)
return b.eth.txPool.Add(signedTx)
}
func (b *EthApiBackend) RemoveTx(txHash common.Hash) {
b.eth.txMu.Lock()
defer b.eth.txMu.Unlock()
b.eth.txPool.Remove(txHash)
}
func (b *EthApiBackend) GetPoolTransactions() types.Transactions {
b.eth.txMu.Lock()
defer b.eth.txMu.Unlock()
var txs types.Transactions
for _, batch := range b.eth.txPool.Pending() {
txs = append(txs, batch...)
}
return txs
}
func (b *EthApiBackend) GetPoolTransaction(hash common.Hash) *types.Transaction {
b.eth.txMu.Lock()
defer b.eth.txMu.Unlock()
return b.eth.txPool.Get(hash)
}
func (b *EthApiBackend) GetPoolNonce(ctx context.Context, addr common.Address) (uint64, error) {
b.eth.txMu.Lock()
defer b.eth.txMu.Unlock()
return b.eth.txPool.State().GetNonce(addr), nil
}
func (b *EthApiBackend) Stats() (pending int, queued int) {
b.eth.txMu.Lock()
defer b.eth.txMu.Unlock()
return b.eth.txPool.Stats()
}
func (b *EthApiBackend) TxPoolContent() (map[common.Address]types.Transactions, map[common.Address]types.Transactions) {
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
203
204
205
b.eth.txMu.Lock()
defer b.eth.txMu.Unlock()
return b.eth.TxPool().Content()
}
func (b *EthApiBackend) Downloader() *downloader.Downloader {
return b.eth.Downloader()
}
func (b *EthApiBackend) ProtocolVersion() int {
return b.eth.EthVersion()
}
func (b *EthApiBackend) SuggestPrice(ctx context.Context) (*big.Int, error) {
return b.gpo.SuggestPrice(), nil
}
func (b *EthApiBackend) ChainDb() ethdb.Database {
return b.eth.ChainDb()
}
func (b *EthApiBackend) EventMux() *event.TypeMux {
return b.eth.EventMux()
}
func (b *EthApiBackend) AccountManager() *accounts.Manager {
return b.eth.AccountManager()
}
type EthApiState struct {
state *state.StateDB
}
func (s EthApiState) GetBalance(ctx context.Context, addr common.Address) (*big.Int, error) {
return s.state.GetBalance(addr), nil
}
func (s EthApiState) GetCode(ctx context.Context, addr common.Address) ([]byte, error) {
return s.state.GetCode(addr), nil
}
func (s EthApiState) GetState(ctx context.Context, a common.Address, b common.Hash) (common.Hash, error) {
return s.state.GetState(a, b), nil
}
func (s EthApiState) GetNonce(ctx context.Context, addr common.Address) (uint64, error) {
return s.state.GetNonce(addr), nil
}