github.com/klaytn/klaytn@v1.12.1/consensus/istanbul/config.go (about)

     1  // Modifications Copyright 2018 The klaytn Authors
     2  // Copyright 2017 The go-ethereum Authors
     3  // This file is part of the go-ethereum library.
     4  //
     5  // The go-ethereum library is free software: you can redistribute it and/or modify
     6  // it under the terms of the GNU Lesser General Public License as published by
     7  // the Free Software Foundation, either version 3 of the License, or
     8  // (at your option) any later version.
     9  //
    10  // The go-ethereum library is distributed in the hope that it will be useful,
    11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    13  // GNU Lesser General Public License for more details.
    14  //
    15  // You should have received a copy of the GNU Lesser General Public License
    16  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    17  //
    18  // This file is derived from quorum/consensus/istanbul/config.go (2018/06/04).
    19  // Modified and improved for the klaytn development.
    20  
    21  package istanbul
    22  
    23  type ProposerPolicy uint64
    24  
    25  const (
    26  	RoundRobin ProposerPolicy = iota
    27  	Sticky
    28  	WeightedRandom
    29  )
    30  
    31  type Config struct {
    32  	Timeout        uint64         `toml:",omitempty"` // The timeout for each Istanbul round in milliseconds.
    33  	BlockPeriod    uint64         `toml:",omitempty"` // Default minimum difference between two consecutive block's timestamps in second
    34  	ProposerPolicy ProposerPolicy `toml:",omitempty"` // The policy for proposer selection
    35  	Epoch          uint64         `toml:",omitempty"` // The number of blocks after which to checkpoint and reset the pending votes
    36  	SubGroupSize   uint64         `toml:",omitempty"`
    37  }
    38  
    39  // TODO-Klaytn-Istanbul: Do not use DefaultConfig except for assigning new config
    40  var DefaultConfig = &Config{
    41  	Timeout:        10000,
    42  	BlockPeriod:    1,
    43  	ProposerPolicy: RoundRobin,
    44  	Epoch:          30000,
    45  	SubGroupSize:   21,
    46  }