ledisdb/replication/relaylog.go

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package replication
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import (
"bufio"
"encoding/json"
)
const (
MaxRelayLogFileSize int = 1024 * 1024 * 1024
DefaultRelayLogFileSize int = MaxRelayLogFileSize
)
type RelayLogConfig struct {
LogConfig
}
func (cfg *RelayLogConfig) adjust() {
if cfg.MaxFileSize <= 0 {
cfg.MaxFileSize = DefaultRelayLogFileSize
} else if cfg.MaxFileSize > MaxRelayLogFileSize {
cfg.MaxFileSize = MaxRelayLogFileSize
}
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//relaylog not care file num
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cfg.MaxFileNum = -1
cfg.LogType = "relay"
}
type relayLogHandler struct {
}
func (h *relayLogHandler) Write(wb *bufio.Writer, data []byte) (int, error) {
return wb.Write(data)
}
func NewRelayLog(data json.RawMessage) (*Log, error) {
var cfg RelayLogConfig
if err := json.Unmarshal(data, &cfg); err != nil {
return nil, err
}
return NewRelayLogWithConfig(&cfg)
}
func NewRelayLogWithConfig(cfg *RelayLogConfig) (*Log, error) {
cfg.adjust()
return newLog(new(relayLogHandler), &cfg.LogConfig)
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}