Golang DB示例

示例#1

文件： api.go 项目： fiorix/freegeoip

// watchEvents logs and collect metrics of database events.
func watchEvents(db *freegeoip.DB) {
	for {
		select {
		case file := <-db.NotifyOpen():
			log.Println("database loaded:", file)
			dbEventCounter.WithLabelValues("loaded").Inc()
		case err := <-db.NotifyError():
			log.Println("database error:", err)
			dbEventCounter.WithLabelValues("failed").Inc()
		case msg := <-db.NotifyInfo():
			log.Println("database info:", msg)
		case <-db.NotifyClose():
			return
		}
	}
}

示例#2

文件： main.go 项目： antwebes/freegeoip

// logEvents logs database events.
func logEvents(db *freegeoip.DB) {
	for {
		select {
		case file := <-db.NotifyOpen():
			log.Println("database loaded:", file)
		case err := <-db.NotifyError():
			log.Println("database error:", err)
		case <-db.NotifyClose():
			return
		}
	}
}