基于golang的log库编写一个日志插件golangqq36456875的博客-

基于golang的log库编写一个日志插件，并发写入日志，使用时直接调用里面的公共方法，希望不吝赐教（写完不敢用，怕出问题，因为没有关闭*file） 

package utils  import ( "log" "os" "sync" "time" ) //日志文件 type logfile struct {  date     string  fileName string  openFile *os.File } type logFiles struct {  rm   sync.RWMutex  logf map[string]*logfile } //存入channel的结构体 type clog struct {  fileName string  msg      interface{} } var ( //用channel记录日志  eChan = make(chan clog, 100)  nChan = make(chan clog, 100)  wChan = make(chan clog, 100)  loger logFiles ) const flag = log.Llongfile + log.Ltime  func init() {  logmp := make(map[string]*logfile, 3)  loger.logf = logmp  go writerLog() //监控日志写入 } //获取log *file 资源 func getOpenFile(fileName string) *os.File {  currentDate := time.Now().Format("2006-01-03") if v, ok := loger.logf[fileName]; ok { if v.date != currentDate { //判断是否过期     loger.rm.Lock()    newOpen, err := os.OpenFile(fileName, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0666) if err != nil {     log.Fatal(err) }     loger.logf[fileName] = &logfile{     date:     currentDate,     fileName: fileName,     openFile: newOpen, }    loger.rm.Unlock() return newOpen   } else { return v.openFile   } }   loger.rm.Lock()  newOpen, err := os.OpenFile(fileName, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0666) if err != nil {   log.Fatal(err) }  loger.logf[fileName] = &logfile{   date:     currentDate,   fileName: fileName,   openFile: newOpen, }  loger.rm.Unlock() return newOpen  } //将日志写入文件 func writerLog() { for { select { case l := <-eChan:    file := getOpenFile(l.fileName)     logger := log.New(file, "", flag)    logger.Println(l.msg)    file.Sync() case w := <-wChan:    file := getOpenFile(w.fileName)    logger := log.New(file, "", flag)    logger.Println(w.msg)    file.Sync() case n := <-nChan:    file := getOpenFile(n.fileName)    logger := log.New(file, "", flag)    logger.Println(n.msg)    file.Sync() } } } //警告 func LogWarning(msg interface{}) {  wChan <- clog{   fileName: "logs/warning" + time.Now().Format("2006-01-03") + ".log",   msg:      msg, } } //致命错误 func LogError(msg interface{}) {  eChan <- clog{   fileName: "logs/err" + time.Now().Format("2006-01-03") + ".log",   msg:      msg, } } //记录 func LogNote(msg interface{}) {  nChan <- clog{   fileName: "logs/note" + time.Now().Format("2006-01-03") + ".log",   msg:      msg, } }