mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
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369 lines
12 KiB
Go
369 lines
12 KiB
Go
// Copyright 2015 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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"context"
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"errors"
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"fmt"
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"math/big"
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"github.com/ledgerwatch/turbo-geth/accounts"
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"github.com/ledgerwatch/turbo-geth/common"
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"github.com/ledgerwatch/turbo-geth/common/math"
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"github.com/ledgerwatch/turbo-geth/core"
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"github.com/ledgerwatch/turbo-geth/core/bloombits"
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"github.com/ledgerwatch/turbo-geth/core/rawdb"
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"github.com/ledgerwatch/turbo-geth/core/state"
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"github.com/ledgerwatch/turbo-geth/core/types"
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"github.com/ledgerwatch/turbo-geth/core/vm"
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"github.com/ledgerwatch/turbo-geth/eth/downloader"
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"github.com/ledgerwatch/turbo-geth/eth/gasprice"
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"github.com/ledgerwatch/turbo-geth/ethdb"
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"github.com/ledgerwatch/turbo-geth/event"
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"github.com/ledgerwatch/turbo-geth/params"
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"github.com/ledgerwatch/turbo-geth/rpc"
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)
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// EthAPIBackend implements ethapi.Backend for full nodes
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type EthAPIBackend struct {
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extRPCEnabled bool
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eth *Ethereum
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gpo *gasprice.Oracle
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}
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// ChainConfig returns the active chain configuration.
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func (b *EthAPIBackend) ChainConfig() *params.ChainConfig {
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return b.eth.blockchain.Config()
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}
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func (b *EthAPIBackend) CurrentBlock() *types.Block {
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return b.eth.blockchain.CurrentBlock()
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}
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func (b *EthAPIBackend) SetHead(number uint64) {
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b.eth.protocolManager.downloader.Cancel()
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b.eth.blockchain.SetHead(number)
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}
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func (b *EthAPIBackend) resolveBlockNumber(blockNr rpc.BlockNumber) uint64 {
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// Pending block is only known by the miner
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if blockNr == rpc.PendingBlockNumber {
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block := b.eth.miner.PendingBlock()
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return block.NumberU64()
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}
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if blockNr == rpc.LatestBlockNumber {
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return b.eth.blockchain.CurrentBlock().NumberU64()
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}
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return uint64(blockNr)
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}
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func (b *EthAPIBackend) HeaderByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*types.Header, error) {
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// Pending block is only known by the miner
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if blockNr == rpc.PendingBlockNumber {
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block := b.eth.miner.PendingBlock()
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return block.Header(), nil
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}
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// Otherwise resolve and return the block
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bn := b.resolveBlockNumber(blockNr)
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return b.eth.blockchain.GetHeaderByNumber(bn), nil
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}
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func (b *EthAPIBackend) HeaderByNumberOrHash(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) (*types.Header, error) {
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if blockNr, ok := blockNrOrHash.Number(); ok {
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return b.HeaderByNumber(ctx, blockNr)
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}
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if hash, ok := blockNrOrHash.Hash(); ok {
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header := b.eth.blockchain.GetHeaderByHash(hash)
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if header == nil {
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return nil, errors.New("header for hash not found")
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}
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if blockNrOrHash.RequireCanonical && b.eth.blockchain.GetCanonicalHash(header.Number.Uint64()) != hash {
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return nil, errors.New("hash is not currently canonical")
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}
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return header, nil
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}
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return nil, errors.New("invalid arguments; neither block nor hash specified")
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}
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func (b *EthAPIBackend) HeaderByHash(ctx context.Context, hash common.Hash) (*types.Header, error) {
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return b.eth.blockchain.GetHeaderByHash(hash), nil
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}
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func (b *EthAPIBackend) BlockByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*types.Block, error) {
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// Pending block is only known by the miner
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if blockNr == rpc.PendingBlockNumber {
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block := b.eth.miner.PendingBlock()
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return block, nil
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}
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// Otherwise resolve and return the block
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bn := b.resolveBlockNumber(blockNr)
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return b.eth.blockchain.GetBlockByNumber(bn), nil
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}
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func (b *EthAPIBackend) BlockByHash(ctx context.Context, hash common.Hash) (*types.Block, error) {
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return b.eth.blockchain.GetBlockByHash(hash), nil
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}
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func (b *EthAPIBackend) BlockByNumberOrHash(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) (*types.Block, error) {
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if blockNr, ok := blockNrOrHash.Number(); ok {
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return b.BlockByNumber(ctx, blockNr)
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}
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if hash, ok := blockNrOrHash.Hash(); ok {
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header := b.eth.blockchain.GetHeaderByHash(hash)
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if header == nil {
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return nil, errors.New("header for hash not found")
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}
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if blockNrOrHash.RequireCanonical && b.eth.blockchain.GetCanonicalHash(header.Number.Uint64()) != hash {
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return nil, errors.New("hash is not currently canonical")
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}
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block := b.eth.blockchain.GetBlock(hash, header.Number.Uint64())
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if block == nil {
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return nil, errors.New("header found, but block body is missing")
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}
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return block, nil
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}
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return nil, errors.New("invalid arguments; neither block nor hash specified")
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}
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func (b *EthAPIBackend) StateAndHeaderByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*state.IntraBlockState, *types.Header, error) {
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// Pending state is only known by the miner
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if blockNr == rpc.PendingBlockNumber {
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block, state, _ := b.eth.miner.Pending()
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return state, block.Header(), nil
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}
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// Otherwise resolve the block number and return its state
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bn := b.resolveBlockNumber(blockNr)
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header, err := b.HeaderByNumber(ctx, blockNr)
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if err != nil {
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return nil, nil, err
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}
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if header == nil {
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return nil, nil, errors.New("header not found")
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}
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ds := state.NewDbState(b.eth.chainDb, bn)
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stateDb := state.New(ds)
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return stateDb, header, nil
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}
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func (b *EthAPIBackend) StateAndHeaderByNumberOrHash(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) (*state.IntraBlockState, *types.Header, error) {
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if blockNr, ok := blockNrOrHash.Number(); ok {
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return b.StateAndHeaderByNumber(ctx, blockNr)
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}
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if hash, ok := blockNrOrHash.Hash(); ok {
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header, err := b.HeaderByHash(ctx, hash)
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if err != nil {
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return nil, nil, err
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}
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if header == nil {
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return nil, nil, errors.New("header for hash not found")
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}
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if blockNrOrHash.RequireCanonical && b.eth.blockchain.GetCanonicalHash(header.Number.Uint64()) != hash {
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return nil, nil, errors.New("hash is not currently canonical")
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}
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stateDb, _, err := b.eth.BlockChain().StateAt(header.Number.Uint64())
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return stateDb, header, err
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}
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return nil, nil, errors.New("invalid arguments; neither block nor hash specified")
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}
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func (b *EthAPIBackend) GetReceipts(ctx context.Context, hash common.Hash) (types.Receipts, error) {
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number := rawdb.ReadHeaderNumber(b.eth.chainDb, hash)
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if number == nil {
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return nil, nil
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}
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block := rawdb.ReadBlock(b.eth.chainDb, hash, *number)
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if cached := b.tryGetReceiptsFromDb(block); cached != nil {
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return cached, nil
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}
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return b.getReceiptsByReApplyingTransactions(block, *number)
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}
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func (b *EthAPIBackend) getReceiptsByReApplyingTransactions(block *types.Block, number uint64) (types.Receipts, error) {
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dbstate := state.NewDbState(b.eth.chainDb, number-1)
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statedb := state.New(dbstate)
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header := block.Header()
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var receipts types.Receipts
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var usedGas = new(uint64)
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var gp = new(core.GasPool).AddGas(block.GasLimit())
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vmConfig := vm.Config{}
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for i, tx := range block.Transactions() {
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statedb.Prepare(tx.Hash(), block.Hash(), i)
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receipt, err := core.ApplyTransaction(b.ChainConfig(), b.eth.blockchain, nil, gp, statedb, dbstate, header, tx, usedGas, vmConfig)
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if err != nil {
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return nil, err
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}
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receipts = append(receipts, receipt)
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}
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return receipts, nil
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}
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func (b *EthAPIBackend) tryGetReceiptsFromDb(block *types.Block) types.Receipts {
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return rawdb.ReadReceipts(
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b.eth.chainDb,
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block.Hash(),
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block.NumberU64(),
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b.eth.blockchain.Config(),
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)
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}
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func (b *EthAPIBackend) GetLogs(ctx context.Context, hash common.Hash) ([][]*types.Log, error) {
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number := rawdb.ReadHeaderNumber(b.eth.chainDb, hash)
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if number == nil {
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return nil, nil
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}
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receipts, err := b.GetReceipts(ctx, hash)
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if err != nil {
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return nil, fmt.Errorf("getReceipt error: %v", err)
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}
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if receipts == nil {
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return nil, nil
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}
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logs := make([][]*types.Log, len(receipts))
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for i, receipt := range receipts {
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logs[i] = receipt.Logs
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}
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return logs, nil
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}
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func (b *EthAPIBackend) GetTd(blockHash common.Hash) *big.Int {
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return b.eth.blockchain.GetTdByHash(blockHash)
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}
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func (b *EthAPIBackend) GetEVM(ctx context.Context, msg core.Message, state *state.IntraBlockState, header *types.Header) (*vm.EVM, func() error, error) {
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state.SetBalance(msg.From(), math.MaxBig256)
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vmError := func() error { return nil }
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context := core.NewEVMContext(msg, header, b.eth.BlockChain(), nil)
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return vm.NewEVM(context, state, b.eth.blockchain.Config(), *b.eth.blockchain.GetVMConfig()), vmError, nil
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}
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func (b *EthAPIBackend) SubscribeRemovedLogsEvent(ch chan<- core.RemovedLogsEvent) event.Subscription {
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return b.eth.BlockChain().SubscribeRemovedLogsEvent(ch)
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}
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func (b *EthAPIBackend) SubscribePendingLogsEvent(ch chan<- []*types.Log) event.Subscription {
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return b.eth.miner.SubscribePendingLogs(ch)
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}
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func (b *EthAPIBackend) SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription {
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return b.eth.BlockChain().SubscribeChainEvent(ch)
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}
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func (b *EthAPIBackend) SubscribeChainHeadEvent(ch chan<- core.ChainHeadEvent) event.Subscription {
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return b.eth.BlockChain().SubscribeChainHeadEvent(ch)
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}
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func (b *EthAPIBackend) SubscribeChainSideEvent(ch chan<- core.ChainSideEvent) event.Subscription {
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return b.eth.BlockChain().SubscribeChainSideEvent(ch)
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}
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func (b *EthAPIBackend) SubscribeLogsEvent(ch chan<- []*types.Log) event.Subscription {
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return b.eth.BlockChain().SubscribeLogsEvent(ch)
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}
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func (b *EthAPIBackend) SendTx(ctx context.Context, signedTx *types.Transaction) error {
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return b.eth.txPool.AddLocal(signedTx)
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}
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func (b *EthAPIBackend) GetPoolTransactions() (types.Transactions, error) {
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pending, err := b.eth.txPool.Pending()
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if err != nil {
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return nil, err
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}
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var txs types.Transactions
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for _, batch := range pending {
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txs = append(txs, batch...)
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}
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return txs, nil
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}
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func (b *EthAPIBackend) GetPoolTransaction(hash common.Hash) *types.Transaction {
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return b.eth.txPool.Get(hash)
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}
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func (b *EthAPIBackend) GetTransaction(ctx context.Context, txHash common.Hash) (*types.Transaction, common.Hash, uint64, uint64, error) {
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tx, blockHash, blockNumber, index := rawdb.ReadTransaction(b.eth.ChainDb(), txHash)
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return tx, blockHash, blockNumber, index, nil
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}
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func (b *EthAPIBackend) GetPoolNonce(ctx context.Context, addr common.Address) (uint64, error) {
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return b.eth.txPool.Nonce(addr), nil
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}
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func (b *EthAPIBackend) Stats() (pending int, queued int) {
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return b.eth.txPool.Stats()
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}
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func (b *EthAPIBackend) TxPoolContent() (map[common.Address]types.Transactions, map[common.Address]types.Transactions) {
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return b.eth.TxPool().Content()
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}
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func (b *EthAPIBackend) SubscribeNewTxsEvent(ch chan<- core.NewTxsEvent) event.Subscription {
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return b.eth.TxPool().SubscribeNewTxsEvent(ch)
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}
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func (b *EthAPIBackend) Downloader() *downloader.Downloader {
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return b.eth.Downloader()
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}
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func (b *EthAPIBackend) ProtocolVersion() int {
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return b.eth.EthVersion()
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}
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func (b *EthAPIBackend) SuggestPrice(ctx context.Context) (*big.Int, error) {
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return b.gpo.SuggestPrice(ctx)
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}
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func (b *EthAPIBackend) ChainDb() ethdb.Database {
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return b.eth.ChainDb()
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}
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func (b *EthAPIBackend) EventMux() *event.TypeMux {
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return b.eth.EventMux()
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}
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func (b *EthAPIBackend) AccountManager() *accounts.Manager {
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return b.eth.AccountManager()
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}
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func (b *EthAPIBackend) ExtRPCEnabled() bool {
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return b.extRPCEnabled
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}
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func (b *EthAPIBackend) RPCGasCap() *big.Int {
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return b.eth.config.RPCGasCap
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}
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func (b *EthAPIBackend) BloomStatus() (uint64, uint64) {
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sections, _, _ := b.eth.bloomIndexer.Sections()
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return params.BloomBitsBlocks, sections
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}
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func (b *EthAPIBackend) ServiceFilter(ctx context.Context, session *bloombits.MatcherSession) {
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for i := 0; i < bloomFilterThreads; i++ {
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go session.Multiplex(bloomRetrievalBatch, bloomRetrievalWait, b.eth.bloomRequests)
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}
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}
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