57 lines
1.7 KiB
Go
57 lines
1.7 KiB
Go
// Copyright 2017 AMIS Technologies
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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 genesis
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import (
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"math/big"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/common/hexutil"
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"github.com/ethereum/go-ethereum/core"
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"github.com/jpmorganchase/istanbul-tools/cmd/istanbul/extra"
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)
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type Option func(*core.Genesis)
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func Validators(addrs ...common.Address) Option {
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return func(genesis *core.Genesis) {
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extraData, err := extra.Encode("0x00", addrs)
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if err != nil {
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log.Error("Failed to encode extra data", "err", err)
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return
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}
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genesis.ExtraData = hexutil.MustDecode(extraData)
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}
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}
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func GasLimit(limit uint64) Option {
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return func(genesis *core.Genesis) {
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genesis.GasLimit = limit
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}
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}
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func Alloc(addrs []common.Address, balance *big.Int) Option {
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return func(genesis *core.Genesis) {
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alloc := make(map[common.Address]core.GenesisAccount)
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for _, addr := range addrs {
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alloc[addr] = core.GenesisAccount{Balance: balance}
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}
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genesis.Alloc = alloc
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}
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}
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