mirror of
https://github.com/ethereum/go-ethereum.git
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460 lines
17 KiB
Go
460 lines
17 KiB
Go
// Copyright 2014 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 core
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import (
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"bytes"
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"encoding/json"
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"errors"
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"fmt"
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"math/big"
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"github.com/XinFinOrg/XDPoSChain/common"
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"github.com/XinFinOrg/XDPoSChain/common/hexutil"
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"github.com/XinFinOrg/XDPoSChain/common/math"
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"github.com/XinFinOrg/XDPoSChain/core/rawdb"
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"github.com/XinFinOrg/XDPoSChain/core/state"
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"github.com/XinFinOrg/XDPoSChain/core/tracing"
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"github.com/XinFinOrg/XDPoSChain/core/types"
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"github.com/XinFinOrg/XDPoSChain/crypto"
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"github.com/XinFinOrg/XDPoSChain/ethdb"
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"github.com/XinFinOrg/XDPoSChain/log"
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"github.com/XinFinOrg/XDPoSChain/params"
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"github.com/XinFinOrg/XDPoSChain/trie"
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)
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//go:generate go run github.com/fjl/gencodec -type Genesis -field-override genesisSpecMarshaling -out gen_genesis.go
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var errGenesisNoConfig = errors.New("genesis has no chain configuration")
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// Deprecated: use types.Account instead.
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type GenesisAccount = types.Account
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// Deprecated: use types.GenesisAlloc instead.
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type GenesisAlloc = types.GenesisAlloc
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// Genesis specifies the header fields, state of a genesis block. It also defines hard
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// fork switch-over blocks through the chain configuration.
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type Genesis struct {
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Config *params.ChainConfig `json:"config"`
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Nonce uint64 `json:"nonce"`
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Timestamp uint64 `json:"timestamp"`
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ExtraData []byte `json:"extraData"`
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GasLimit uint64 `json:"gasLimit" gencodec:"required"`
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Difficulty *big.Int `json:"difficulty" gencodec:"required"`
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Mixhash common.Hash `json:"mixHash"`
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Coinbase common.Address `json:"coinbase"`
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Alloc types.GenesisAlloc `json:"alloc" gencodec:"required"`
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// These fields are used for consensus tests. Please don't use them
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// in actual genesis blocks.
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Number uint64 `json:"number"`
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GasUsed uint64 `json:"gasUsed"`
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ParentHash common.Hash `json:"parentHash"`
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BaseFee *big.Int `json:"baseFeePerGas"`
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}
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func getGenesisState(db ethdb.Database, blockhash common.Hash) (alloc types.GenesisAlloc, err error) {
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blob := rawdb.ReadGenesisStateSpec(db, blockhash)
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if len(blob) != 0 {
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if err := alloc.UnmarshalJSON(blob); err != nil {
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return nil, err
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}
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return alloc, nil
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}
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// Genesis allocation is missing and there are several possibilities:
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// the node is legacy which doesn't persist the genesis allocation or
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// the persisted allocation is just lost.
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// - supported networks(mainnet, testnets), recover with defined allocations
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// - private network, can't recover
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var genesis *Genesis
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switch blockhash {
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case params.MainnetGenesisHash:
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genesis = DefaultGenesisBlock()
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case params.TestnetGenesisHash:
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genesis = DefaultTestnetGenesisBlock()
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case params.DevnetGenesisHash:
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genesis = DefaultDevnetGenesisBlock()
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}
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if genesis != nil {
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return genesis.Alloc, nil
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}
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return nil, nil
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}
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// hashAlloc computes the state root according to the genesis specification.
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func hashAlloc(ga *types.GenesisAlloc) (common.Hash, error) {
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// Create an ephemeral in-memory database for computing hash,
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// all the derived states will be discarded to not pollute disk.
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db := state.NewDatabaseWithConfig(rawdb.NewMemoryDatabase(), nil)
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statedb, err := state.New(types.EmptyRootHash, db)
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if err != nil {
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return common.Hash{}, err
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}
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for addr, account := range *ga {
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if account.Balance != nil {
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statedb.AddBalance(addr, account.Balance, tracing.BalanceIncreaseGenesisBalance)
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}
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statedb.SetCode(addr, account.Code)
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statedb.SetNonce(addr, account.Nonce)
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for key, value := range account.Storage {
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statedb.SetState(addr, key, value)
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}
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}
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return statedb.Commit(0, false)
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}
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// flushAlloc is very similar to hashAlloc, but the main difference is
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// all the generated states will be persisted into the given database.
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// Also, the genesis state specification will be flushed as well.
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func flushAlloc(ga *types.GenesisAlloc, db ethdb.Database, blockhash common.Hash) error {
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statedb, err := state.New(types.EmptyRootHash, state.NewDatabase(db))
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if err != nil {
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return err
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}
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for addr, account := range *ga {
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if account.Balance != nil {
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statedb.AddBalance(addr, account.Balance, tracing.BalanceIncreaseGenesisBalance)
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}
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statedb.SetCode(addr, account.Code)
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statedb.SetNonce(addr, account.Nonce)
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for key, value := range account.Storage {
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statedb.SetState(addr, key, value)
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}
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}
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root, err := statedb.Commit(0, false)
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if err != nil {
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return err
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}
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err = statedb.Database().TrieDB().Commit(root, true)
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if err != nil {
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return err
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}
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// Marshal the genesis state specification and persist.
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blob, err := json.Marshal(ga)
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if err != nil {
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return err
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}
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rawdb.WriteGenesisStateSpec(db, blockhash, blob)
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return nil
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}
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// field type overrides for gencodec
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type genesisSpecMarshaling struct {
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Nonce math.HexOrDecimal64
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Timestamp math.HexOrDecimal64
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ExtraData hexutil.Bytes
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GasLimit math.HexOrDecimal64
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GasUsed math.HexOrDecimal64
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Number math.HexOrDecimal64
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Difficulty *math.HexOrDecimal256
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BaseFee *math.HexOrDecimal256
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Alloc map[common.UnprefixedAddress]types.Account
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}
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// GenesisMismatchError is raised when trying to overwrite an existing
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// genesis block with an incompatible one.
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type GenesisMismatchError struct {
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Stored, New common.Hash
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}
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func (e *GenesisMismatchError) Error() string {
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return fmt.Sprintf("database contains incompatible genesis (have %x, new %x)", e.Stored, e.New)
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}
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// SetupGenesisBlock writes or updates the genesis block in db.
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// The block that will be used is:
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//
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// genesis == nil genesis != nil
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// +------------------------------------------
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// db has no genesis | main-net default | genesis
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// db has genesis | from DB | genesis (if compatible)
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//
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// The stored chain configuration will be updated if it is compatible (i.e. does not
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// specify a fork block below the local head block). In case of a conflict, the
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// error is a *params.ConfigCompatError and the new, unwritten config is returned.
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//
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// The returned chain configuration is never nil.
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func SetupGenesisBlock(db ethdb.Database, genesis *Genesis) (*params.ChainConfig, common.Hash, error) {
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if genesis != nil && genesis.Config == nil {
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return params.AllEthashProtocolChanges, common.Hash{}, errGenesisNoConfig
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}
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// Just commit the new block if there is no stored genesis block.
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stored := rawdb.ReadCanonicalHash(db, 0)
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if (stored == common.Hash{}) {
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if genesis == nil {
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log.Info("Writing default main-net genesis block")
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genesis = DefaultGenesisBlock()
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} else {
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log.Info("Writing custom genesis block")
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}
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block, err := genesis.Commit(db)
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if err != nil {
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return genesis.Config, common.Hash{}, err
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}
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return genesis.Config, block.Hash(), err
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}
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// We have the genesis block in database (perhaps in ancient database)
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// but the corresponding state is missing.
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header := rawdb.ReadHeader(db, stored, 0)
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if header == nil {
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cfg := genesis.configOrDefault(stored)
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return cfg, stored, fmt.Errorf("missing genesis header for hash: %s", stored.Hex())
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}
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if _, err := state.New(header.Root, state.NewDatabaseWithConfig(db, nil)); err != nil {
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if genesis == nil {
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genesis = DefaultGenesisBlock()
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}
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// Ensure the stored genesis matches with the given one.
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hash := genesis.ToBlock().Hash()
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if hash != stored {
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return genesis.Config, hash, &GenesisMismatchError{stored, hash}
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}
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block, err := genesis.Commit(db)
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if err != nil {
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return genesis.Config, hash, err
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}
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return genesis.Config, block.Hash(), nil
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}
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// Check whether the genesis block is already written.
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if genesis != nil {
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hash := genesis.ToBlock().Hash()
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if hash != stored {
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return genesis.Config, hash, &GenesisMismatchError{stored, hash}
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}
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}
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// Get the existing chain configuration.
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newcfg := genesis.configOrDefault(stored)
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storedcfg, _ := rawdb.ReadChainConfig(db, stored)
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if storedcfg == nil {
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log.Warn("Found genesis block without chain config")
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rawdb.WriteChainConfig(db, stored, newcfg)
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return newcfg, stored, nil
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}
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// Special case: don't change the existing config of a non-xinfin chain if no new
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// config is supplied. These chains would get AllProtocolChanges (and a compat error)
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// if we just continued here.
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if genesis == nil && newcfg == params.AllEthashProtocolChanges {
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return storedcfg, stored, nil
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}
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// Check config compatibility and write the config. Compatibility errors
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// are returned to the caller unless we're already at block zero.
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height := rawdb.ReadHeaderNumber(db, rawdb.ReadHeadHeaderHash(db))
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if height == nil {
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return newcfg, stored, errors.New("missing block number for head header hash")
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}
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compatErr := storedcfg.CheckCompatible(newcfg, *height)
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if compatErr != nil && *height != 0 && compatErr.RewindTo != 0 {
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return newcfg, stored, compatErr
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}
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// Don't overwrite if the old is identical to the new
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storedData, err := json.Marshal(storedcfg)
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if err != nil {
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return newcfg, stored, fmt.Errorf("failed to marshal stored chain config: %w", err)
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}
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newData, err := json.Marshal(newcfg)
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if err != nil {
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return newcfg, stored, fmt.Errorf("failed to marshal new chain config: %w", err)
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}
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if !bytes.Equal(storedData, newData) {
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rawdb.WriteChainConfig(db, stored, newcfg)
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}
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return newcfg, stored, nil
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}
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func (g *Genesis) configOrDefault(ghash common.Hash) *params.ChainConfig {
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switch {
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case g != nil:
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log.Info("[configOrDefault] load orignal config", "hash", ghash)
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return g.Config
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case ghash == params.MainnetGenesisHash:
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log.Info("[configOrDefault] load mainnetconfig")
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return params.XDCMainnetChainConfig
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case ghash == params.TestnetGenesisHash:
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log.Info("[configOrDefault] load TestnetChainConfig")
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return params.TestnetChainConfig
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case ghash == params.DevnetGenesisHash:
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log.Info("[configOrDefault] load DevnetChainConfig")
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return params.DevnetChainConfig
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default:
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log.Info("[configOrDefault] load AllEthashProtocolChanges", "hash", ghash)
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return params.AllEthashProtocolChanges
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}
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}
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// ToBlock returns the genesis block according to genesis specification.
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func (g *Genesis) ToBlock() *types.Block {
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root, err := hashAlloc(&g.Alloc)
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if err != nil {
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panic(err)
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}
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head := &types.Header{
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Number: new(big.Int).SetUint64(g.Number),
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Nonce: types.EncodeNonce(g.Nonce),
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Time: g.Timestamp,
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ParentHash: g.ParentHash,
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Extra: g.ExtraData,
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GasLimit: g.GasLimit,
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GasUsed: g.GasUsed,
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BaseFee: g.BaseFee,
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Difficulty: g.Difficulty,
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MixDigest: g.Mixhash,
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Coinbase: g.Coinbase,
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Root: root,
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}
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if g.GasLimit == 0 {
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head.GasLimit = params.GenesisGasLimit
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}
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if g.Difficulty == nil {
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head.Difficulty = params.GenesisDifficulty
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}
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// Notice: Eip1559Block affects the block hash, we must set:
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// 1. g.Config.Eip1559Block
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// 2. or common.Eip1559Block
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if g.Config != nil && g.Config.IsEIP1559(common.Big0) {
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if g.BaseFee != nil {
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head.BaseFee = g.BaseFee
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} else {
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head.BaseFee = new(big.Int).SetUint64(params.InitialBaseFee)
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}
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}
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return types.NewBlock(head, nil, nil, trie.NewStackTrie(nil))
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}
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// Commit writes the block and state of a genesis specification to the database.
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// The block is committed as the canonical head block.
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func (g *Genesis) Commit(db ethdb.Database) (*types.Block, error) {
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block := g.ToBlock()
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if block.Number().Sign() != 0 {
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return nil, errors.New("can't commit genesis block with number > 0")
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}
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config := g.Config
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if config == nil {
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return nil, errors.New("invalid genesis without chain config")
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}
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if config.XDPoS != nil && len(g.ExtraData) < 32+crypto.SignatureLength {
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return nil, errors.New("can't start XDPoS chain without signers")
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}
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// All the checks have passed, flushAlloc the states derived from the genesis
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// specification as well as the specification itself into the provided
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// database.
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if err := flushAlloc(&g.Alloc, db, block.Hash()); err != nil {
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return nil, err
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}
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batch := db.NewBatch()
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rawdb.WriteTd(batch, block.Hash(), block.NumberU64(), g.Difficulty)
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rawdb.WriteBlock(batch, block)
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rawdb.WriteReceipts(batch, block.Hash(), block.NumberU64(), nil)
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rawdb.WriteCanonicalHash(batch, block.Hash(), block.NumberU64())
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rawdb.WriteHeadBlockHash(batch, block.Hash())
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rawdb.WriteHeadFastBlockHash(batch, block.Hash())
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rawdb.WriteHeadHeaderHash(batch, block.Hash())
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rawdb.WriteChainConfig(batch, block.Hash(), config)
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return block, batch.Write()
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}
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// MustCommit writes the genesis block and state to db, panicking on error.
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// The block is committed as the canonical head block.
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func (g *Genesis) MustCommit(db ethdb.Database) *types.Block {
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block, err := g.Commit(db)
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if err != nil {
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panic(err)
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}
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return block
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}
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// DefaultGenesisBlock returns the XDC mainnet genesis block.
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func DefaultGenesisBlock() *Genesis {
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return &Genesis{
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Config: params.XDCMainnetChainConfig,
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Nonce: 0,
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ExtraData: hexutil.MustDecode("0x000000000000000000000000000000000000000000000000000000000000000025c65b4b379ac37cf78357c4915f73677022eaffc7d49d0a2cf198deebd6ce581af465944ec8b2bbcfccdea1006a5cfa7d9484b5b293b46964c265c00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"),
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GasLimit: 4700000,
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Difficulty: big.NewInt(1),
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Alloc: DecodeAllocJson(MainnetAllocData),
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Timestamp: 1559211559,
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}
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}
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// DefaultTestnetGenesisBlock returns the XDC testnet genesis block.
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func DefaultTestnetGenesisBlock() *Genesis {
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return &Genesis{
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Config: params.TestnetChainConfig,
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Nonce: 0,
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ExtraData: hexutil.MustDecode("0x00000000000000000000000000000000000000000000000000000000000000003ea0a3555f9b1de983572bff6444aeb1899ec58c4f7900282f3d371d585ab1361205b0940ab1789c942a5885a8844ee5587c8ac5e371fc39ffe618960000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"),
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GasLimit: 4700000,
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Difficulty: big.NewInt(1),
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Alloc: DecodeAllocJson(TestnetAllocData),
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Timestamp: 1560417871,
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}
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}
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// DefaultDevnetGenesisBlock returns the XDC devnet genesis block.
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func DefaultDevnetGenesisBlock() *Genesis {
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return &Genesis{
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Config: params.DevnetChainConfig,
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Nonce: 0,
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ExtraData: hexutil.MustDecode("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"),
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GasLimit: 4700000,
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Difficulty: big.NewInt(1),
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Alloc: DecodeAllocJson(DevnetAllocData),
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Timestamp: 1735513074,
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}
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}
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// DeveloperGenesisBlock returns the 'geth --dev' genesis block. Note, this must
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// be seeded with the
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func DeveloperGenesisBlock(period uint64, faucet common.Address) *Genesis {
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// Override the default period to the user requested one
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config := *params.AllXDPoSProtocolChanges
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config.XDPoS.Period = period
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// Assemble and return the genesis with the precompiles and faucet pre-funded
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return &Genesis{
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Config: &config,
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ExtraData: append(append(make([]byte, 32), faucet[:]...), make([]byte, crypto.SignatureLength)...),
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GasLimit: 6283185,
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BaseFee: big.NewInt(params.InitialBaseFee),
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Difficulty: big.NewInt(1),
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Alloc: map[common.Address]types.Account{
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common.BytesToAddress([]byte{1}): {Balance: big.NewInt(1)}, // ECRecover
|
|
common.BytesToAddress([]byte{2}): {Balance: big.NewInt(1)}, // SHA256
|
|
common.BytesToAddress([]byte{3}): {Balance: big.NewInt(1)}, // RIPEMD
|
|
common.BytesToAddress([]byte{4}): {Balance: big.NewInt(1)}, // Identity
|
|
common.BytesToAddress([]byte{5}): {Balance: big.NewInt(1)}, // ModExp
|
|
common.BytesToAddress([]byte{6}): {Balance: big.NewInt(1)}, // ECAdd
|
|
common.BytesToAddress([]byte{7}): {Balance: big.NewInt(1)}, // ECScalarMul
|
|
common.BytesToAddress([]byte{8}): {Balance: big.NewInt(1)}, // ECPairing
|
|
faucet: {Balance: new(big.Int).Sub(new(big.Int).Lsh(big.NewInt(1), 256), big.NewInt(9))},
|
|
},
|
|
}
|
|
}
|
|
|
|
func DecodeAllocJson(s string) types.GenesisAlloc {
|
|
alloc := types.GenesisAlloc{}
|
|
json.Unmarshal([]byte(s), &alloc)
|
|
return alloc
|
|
}
|