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// Copyright 2018 The dexon-consensus Authors
// This file is part of the dexon-consensus library.
//
// The dexon-consensus library is free software: you can redistribute it
// and/or modify it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation, either version 3 of the License,
// or (at your option) any later version.
//
// The dexon-consensus library is distributed in the hope that it will be
// useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
// General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the dexon-consensus library. If not, see
// <http://www.gnu.org/licenses/>.
package types
import (
"encoding/binary"
"math"
"time"
)
// Config stands for Current Configuration Parameters.
type Config struct {
// Network related.
NumChains uint32
// Lambda related.
LambdaBA time.Duration
LambdaDKG time.Duration
// Total ordering related.
K int
PhiRatio float32
// Set related.
NotarySetSize uint32
DKGSetSize uint32
// Time related.
RoundInterval time.Duration
MinBlockInterval time.Duration
}
// Clone return a copied configuration.
func (c *Config) Clone() *Config {
return &Config{
NumChains: c.NumChains,
LambdaBA: c.LambdaBA,
LambdaDKG: c.LambdaDKG,
K: c.K,
PhiRatio: c.PhiRatio,
NotarySetSize: c.NotarySetSize,
DKGSetSize: c.DKGSetSize,
RoundInterval: c.RoundInterval,
MinBlockInterval: c.MinBlockInterval,
}
}
// Bytes returns []byte representation of Config.
func (c *Config) Bytes() []byte {
binaryNumChains := make([]byte, 4)
binary.LittleEndian.PutUint32(binaryNumChains, c.NumChains)
binaryLambdaBA := make([]byte, 8)
binary.LittleEndian.PutUint64(
binaryLambdaBA, uint64(c.LambdaBA.Nanoseconds()))
binaryLambdaDKG := make([]byte, 8)
binary.LittleEndian.PutUint64(
binaryLambdaDKG, uint64(c.LambdaDKG.Nanoseconds()))
binaryK := make([]byte, 4)
binary.LittleEndian.PutUint32(binaryK, uint32(c.K))
binaryPhiRatio := make([]byte, 4)
binary.LittleEndian.PutUint32(binaryPhiRatio, math.Float32bits(c.PhiRatio))
binaryNotarySetSize := make([]byte, 4)
binary.LittleEndian.PutUint32(binaryNotarySetSize, c.NotarySetSize)
binaryDKGSetSize := make([]byte, 4)
binary.LittleEndian.PutUint32(binaryDKGSetSize, c.DKGSetSize)
binaryRoundInterval := make([]byte, 8)
binary.LittleEndian.PutUint64(binaryRoundInterval,
uint64(c.RoundInterval.Nanoseconds()))
binaryMinBlockInterval := make([]byte, 8)
binary.LittleEndian.PutUint64(binaryMinBlockInterval,
uint64(c.MinBlockInterval.Nanoseconds()))
enc := make([]byte, 0, 40)
enc = append(enc, binaryNumChains...)
enc = append(enc, binaryLambdaBA...)
enc = append(enc, binaryLambdaDKG...)
enc = append(enc, binaryK...)
enc = append(enc, binaryPhiRatio...)
enc = append(enc, binaryNotarySetSize...)
enc = append(enc, binaryDKGSetSize...)
enc = append(enc, binaryRoundInterval...)
enc = append(enc, binaryMinBlockInterval...)
return enc
}
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