136 lines
2.4 KiB
Go
136 lines
2.4 KiB
Go
package config
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import (
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"io/ioutil"
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"github.com/BurntSushi/toml"
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)
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type Size int
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const (
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DefaultAddr string = "127.0.0.1:6380"
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DefaultHttpAddr string = "127.0.0.1:11181"
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DefaultDBName string = "goleveldb"
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DefaultDataDir string = "./data"
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)
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const (
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MaxBinLogFileSize int = 1024 * 1024 * 1024
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MaxBinLogFileNum int = 10000
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DefaultBinLogFileSize int = MaxBinLogFileSize
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DefaultBinLogFileNum int = 10
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)
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type LevelDBConfig struct {
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Compression bool `toml:"compression"`
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BlockSize int `toml:"block_size"`
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WriteBufferSize int `toml:"write_buffer_size"`
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CacheSize int `toml:"cache_size"`
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MaxOpenFiles int `toml:"max_open_files"`
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}
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type LMDBConfig struct {
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MapSize int `toml:"map_size"`
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NoSync bool `toml:"nosync"`
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}
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type BinLogConfig struct {
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MaxFileSize int `toml:"max_file_size"`
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MaxFileNum int `toml:"max_file_num"`
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}
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type Config struct {
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DataDir string `toml:"data_dir"`
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DBName string `toml:"db_name"`
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LevelDB LevelDBConfig `toml:"leveldb"`
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LMDB LMDBConfig `toml:"lmdb"`
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BinLog BinLogConfig `toml:"binlog"`
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SlaveOf string `toml:"slaveof"`
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AccessLog string `toml:"access_log"`
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}
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func NewConfigWithFile(fileName string) (*Config, error) {
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data, err := ioutil.ReadFile(fileName)
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if err != nil {
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return nil, err
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}
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return NewConfigWithData(data)
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}
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func NewConfigWithData(data []byte) (*Config, error) {
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cfg := NewConfigDefault()
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_, err := toml.Decode(string(data), cfg)
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if err != nil {
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return nil, err
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}
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return cfg, nil
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}
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func NewConfigDefault() *Config {
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cfg := new(Config)
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cfg.DataDir = DefaultDataDir
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cfg.DBName = DefaultDBName
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// disable binlog
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cfg.BinLog.MaxFileNum = 0
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cfg.BinLog.MaxFileSize = 0
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// disable replication
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cfg.SlaveOf = ""
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// disable access log
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cfg.AccessLog = ""
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cfg.LMDB.MapSize = 20 * 1024 * 1024
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cfg.LMDB.NoSync = true
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return cfg
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}
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func (cfg *LevelDBConfig) Adjust() {
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if cfg.CacheSize <= 0 {
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cfg.CacheSize = 4 * 1024 * 1024
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}
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if cfg.BlockSize <= 0 {
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cfg.BlockSize = 4 * 1024
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}
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if cfg.WriteBufferSize <= 0 {
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cfg.WriteBufferSize = 4 * 1024 * 1024
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}
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if cfg.MaxOpenFiles < 1024 {
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cfg.MaxOpenFiles = 1024
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}
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}
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func (cfg *BinLogConfig) Adjust() {
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if cfg.MaxFileSize <= 0 {
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cfg.MaxFileSize = DefaultBinLogFileSize
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} else if cfg.MaxFileSize > MaxBinLogFileSize {
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cfg.MaxFileSize = MaxBinLogFileSize
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}
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if cfg.MaxFileNum <= 0 {
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cfg.MaxFileNum = DefaultBinLogFileNum
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} else if cfg.MaxFileNum > MaxBinLogFileNum {
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cfg.MaxFileNum = MaxBinLogFileNum
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}
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}
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