mirror of https://github.com/poanetwork/quorum.git
48 lines
1.6 KiB
Go
48 lines
1.6 KiB
Go
// Copyright 2017 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 validator
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import (
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/consensus/istanbul"
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)
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func New(addr common.Address) istanbul.Validator {
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return &defaultValidator{
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address: addr,
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}
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}
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func NewSet(addrs []common.Address, policy istanbul.ProposerPolicy) istanbul.ValidatorSet {
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return newDefaultSet(addrs, policy)
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}
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func ExtractValidators(extraData []byte) []common.Address {
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// get the validator addresses
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addrs := make([]common.Address, (len(extraData) / common.AddressLength))
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for i := 0; i < len(addrs); i++ {
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copy(addrs[i][:], extraData[i*common.AddressLength:])
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}
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return addrs
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}
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// Check whether the extraData is presented in prescribed form
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func ValidExtraData(extraData []byte) bool {
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return len(extraData)%common.AddressLength == 0
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}
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