Golang开发：实现高性能的日志管理

package main

import (
    "log"
    "os"
    "sync"
    "time"
)

type Logger struct {
    logCh    chan string
    shutdown chan struct{}
    wg       sync.WaitGroup
}

func NewLogger() *Logger {
    logger := &Logger{
        logCh:    make(chan string, 1000),
        shutdown: make(chan struct{}),
    }

    logger.wg.Add(1)
    go logger.process()

    return logger
}

func (l *Logger) process() {
    logFile, err := os.OpenFile("logs.txt", os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
    if err != nil {
        log.Fatal(err)
    }
    defer logFile.Close()

    logger := log.New(logFile, "", log.LstdFlags|log.Lmicroseconds)
    logger.SetOutput(logFile)

    for {
        select {
        case logStr := <-l.logCh:
            logger.Println(logStr)
        case <-l.shutdown:
            l.wg.Done()
            return
        }
    }
}

func (l *Logger) Log(logStr string) {
    l.logCh <- logStr
}

func (l *Logger) Shutdown() {
    close(l.shutdown)
    l.wg.Wait()
}

func main() {
    logger := NewLogger()

    logger.Log("Log message 1")
    logger.Log("Log message 2")
    logger.Log("Log message 3")

    time.Sleep(time.Second * 1)

    logger.Shutdown()
}