status-go/vendor/github.com/ethereum/go-ethereum/les/api_backend.go

156 lines
5.1 KiB
Go
Raw Normal View History

2016-11-25 05:50:30 +00:00
// Copyright 2016 The go-ethereum Authors
// This file is part of the go-ethereum library.
2016-06-20 14:47:10 +00:00
//
2016-11-25 05:50:30 +00:00
// 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
2016-06-20 14:47:10 +00:00
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
2016-11-25 05:50:30 +00:00
// The go-ethereum library is distributed in the hope that it will be useful,
2016-06-20 14:47:10 +00:00
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
2016-11-25 05:50:30 +00:00
// GNU Lesser General Public License for more details.
2016-06-20 14:47:10 +00:00
//
2016-11-25 05:50:30 +00:00
// 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/>.
2016-06-20 14:47:10 +00:00
package les
import (
"context"
2016-06-20 14:47:10 +00:00
"math/big"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/math"
2016-06-20 14:47:10 +00:00
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/state"
2016-06-20 14:47:10 +00:00
"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"
2016-06-20 14:47:10 +00:00
"github.com/ethereum/go-ethereum/light"
2016-11-25 05:50:30 +00:00
"github.com/ethereum/go-ethereum/params"
2017-02-23 00:22:43 +00:00
"github.com/ethereum/go-ethereum/rpc"
2016-06-20 14:47:10 +00:00
)
type LesApiBackend struct {
2017-02-23 00:22:43 +00:00
eth *LightEthereum
gpo *gasprice.Oracle
2017-02-23 00:22:43 +00:00
statusBackend *ethapi.StatusBackend
}
func (b *LesApiBackend) GetStatusBackend() *ethapi.StatusBackend {
return b.statusBackend
2016-06-20 14:47:10 +00:00
}
2016-11-25 05:50:30 +00:00
func (b *LesApiBackend) ChainConfig() *params.ChainConfig {
return b.eth.chainConfig
}
func (b *LesApiBackend) CurrentBlock() *types.Block {
return types.NewBlockWithHeader(b.eth.BlockChain().CurrentHeader())
}
2016-06-20 14:47:10 +00:00
func (b *LesApiBackend) SetHead(number uint64) {
b.eth.protocolManager.downloader.Cancel()
2016-06-20 14:47:10 +00:00
b.eth.blockchain.SetHead(number)
}
func (b *LesApiBackend) HeaderByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*types.Header, error) {
2016-06-20 14:47:10 +00:00
if blockNr == rpc.LatestBlockNumber || blockNr == rpc.PendingBlockNumber {
return b.eth.blockchain.CurrentHeader(), nil
2016-06-20 14:47:10 +00:00
}
return b.eth.blockchain.GetHeaderByNumberOdr(ctx, uint64(blockNr))
2016-06-20 14:47:10 +00:00
}
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
2016-06-20 14:47:10 +00:00
}
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
2016-06-20 14:47:10 +00:00
}
return light.NewState(ctx, header, b.eth.odr), header, nil
2016-06-20 14:47:10 +00:00
}
func (b *LesApiBackend) GetBlock(ctx context.Context, blockHash common.Hash) (*types.Block, error) {
2016-07-03 19:44:31 +00:00
return b.eth.blockchain.GetBlockByHash(ctx, blockHash)
2016-06-20 14:47:10 +00:00
}
func (b *LesApiBackend) GetReceipts(ctx context.Context, blockHash common.Hash) (types.Receipts, error) {
2016-07-03 19:44:31 +00:00
return light.GetBlockReceipts(ctx, b.eth.odr, blockHash, core.GetBlockNumber(b.eth.chainDb, blockHash))
2016-06-20 14:47:10 +00:00
}
func (b *LesApiBackend) GetTd(blockHash common.Hash) *big.Int {
2016-07-03 19:44:31 +00:00
return b.eth.blockchain.GetTdByHash(blockHash)
2016-06-20 14:47:10 +00:00
}
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
2016-06-20 14:47:10 +00:00
}
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)
}
2017-02-23 00:22:43 +00:00
func (b *LesApiBackend) GetPoolTransactions() (types.Transactions, error) {
2016-06-20 14:47:10 +00:00
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) {
2016-07-03 19:44:31 +00:00
return b.eth.txPool.Content()
2016-06-20 14:47:10 +00:00
}
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
}