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// Copyright 2018 The dexon-consensus-core Authors
// This file is part of the dexon-consensus-core library.
//
// The dexon-consensus-core 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-core 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-core library. If not, see
// <http://www.gnu.org/licenses/>.
package config
import (
"math"
"os"
"github.com/naoina/toml"
)
// NetworkType is the simulation network type.
type NetworkType string
// NetworkType enums.
const (
NetworkTypeTCP NetworkType = "tcp"
NetworkTypeTCPLocal NetworkType = "tcp-local"
NetworkTypeFake NetworkType = "fake"
)
// Consensus settings.
type Consensus struct {
PhiRatio float32
K int
ChainNum uint32
GenesisCRS string `toml:"genesis_crs"`
Lambda int
}
// Legacy config.
type Legacy struct {
ProposeIntervalMean float64
ProposeIntervalSigma float64
}
// Node config for the simulation.
type Node struct {
Consensus Consensus
Legacy Legacy
Num int
MaxBlock uint64
}
// Networking config.
type Networking struct {
Type NetworkType
PeerServer string
Mean float64
Sigma float64
LossRateValue float64
}
// Scheduler Settings.
type Scheduler struct {
WorkerNum int
}
// Config represents the configuration for simulation.
type Config struct {
Title string
Node Node
Networking Networking
Scheduler Scheduler
}
// GenerateDefault generates a default configuration file.
func GenerateDefault(path string) error {
f, err := os.Create(path)
if err != nil {
return err
}
defer f.Close()
config := Config{
Title: "DEXON Consensus Simulation Config",
Node: Node{
Consensus: Consensus{
PhiRatio: float32(2) / 3,
K: 1,
ChainNum: 7,
GenesisCRS: "In DEXON we trust.",
Lambda: 250,
},
Legacy: Legacy{
ProposeIntervalMean: 500,
ProposeIntervalSigma: 50,
},
Num: 7,
MaxBlock: math.MaxUint64,
},
Networking: Networking{
Type: NetworkTypeTCPLocal,
PeerServer: "peer.server",
Mean: 100,
Sigma: 10,
LossRateValue: 0,
},
Scheduler: Scheduler{
WorkerNum: 2,
},
}
if err := toml.NewEncoder(f).Encode(&config); err != nil {
return err
}
return nil
}
// Read reads the config from a file.
func Read(path string) (*Config, error) {
f, err := os.Open(path)
if err != nil {
return nil, err
}
defer f.Close()
var config Config
if err := toml.NewDecoder(f).Decode(&config); err != nil {
return nil, err
}
return &config, nil
}
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