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https://gitlab.com/pulsechaincom/go-pulse.git
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f0cbebb19f
Added chain configuration options and write out during genesis database insertion. If no "config" was found, nothing is written to the database. Configurations are written on a per genesis base. This means that any chain (which is identified by it's genesis hash) can have their own chain settings.
47 lines
1.5 KiB
Go
47 lines
1.5 KiB
Go
// Copyright 2016 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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"errors"
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"math/big"
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"github.com/ethereum/go-ethereum/core/vm"
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)
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var ChainConfigNotFoundErr = errors.New("ChainConfig not found") // general config not found error
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// ChainConfig is the core config which determines the blockchain settings.
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//
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// ChainConfig is stored in the database on a per block basis. This means
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// that any network, identified by its genesis block, can have its own
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// set of configuration options.
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type ChainConfig struct {
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HomesteadBlock *big.Int // homestead switch block
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VmConfig vm.Config `json:"-"`
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}
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// IsHomestead returns whether num is either equal to the homestead block or greater.
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func (c *ChainConfig) IsHomestead(num *big.Int) bool {
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if num == nil {
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return false
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}
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return num.Cmp(c.HomesteadBlock) >= 0
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}
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