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size_log.go
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size_log.go
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package log
import (
"fmt"
"github.com/chanxuehong/util/math"
"github.com/diffguo/gocom/goroutineid"
"log"
"os"
"strings"
"sync"
"time"
)
// 按文件大小进行日志切割
var GSizeLog *SizeLog
type SizeLog struct {
LogLevel int
LogMaxSize int
LogCurSize int
FileFullName string
PFile *os.File
Log *log.Logger
M sync.Mutex
}
func InitSizeLog(logDir string, logFile string, logStrLevel string, LogMaxSize int) (*SizeLog, error) {
if LogMaxSize == 0 {
LogMaxSize = 524288000
}
logStrLevel = strings.ToLower(logStrLevel)
if logStrLevel != "debug" && logStrLevel != "info" && logStrLevel != "warn" && logStrLevel != "error" {
return nil, fmt.Errorf("wrong log level")
}
sizeLog := SizeLog{LogMaxSize: LogMaxSize}
sizeLog.LogLevel = getLogLevel(logStrLevel)
if sizeLog.LogLevel == 0 {
return nil, fmt.Errorf("wrong log level: %s", logStrLevel)
}
sizeLog.FileFullName = logDir + "/" + logFile
var err error
sizeLog.PFile, err = os.OpenFile(sizeLog.FileFullName, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
if err != nil {
return nil, err
}
sizeLog.Log = log.New(sizeLog.PFile, "", log.Ldate|log.Lmicroseconds|log.Lshortfile)
if GSizeLog == nil {
GSizeLog = &sizeLog
}
ff, err := os.Stat(sizeLog.FileFullName)
if err != nil {
return nil, err
}
// 文件最大2G
if ff.Size() > math.MaxInt {
sizeLog.LogCurSize = math.MaxInt
} else {
sizeLog.LogCurSize = int(ff.Size())
}
sizeLog.rotate()
return &sizeLog, nil
}
func (slog *SizeLog) rotate() {
if slog.LogCurSize >= slog.LogMaxSize {
slog.M.Lock()
defer slog.M.Unlock()
if slog.LogCurSize == 0 {
return
}
err := slog.PFile.Close()
if err != nil {
fmt.Printf("close log file err: %s\n", err.Error())
return
}
err = os.Rename(slog.FileFullName, slog.FileFullName+"."+time.Now().Format("2006-01-02T15:04:05.999999999"))
if err != nil {
fmt.Printf("Rename log file err: %s\n", err.Error())
return
}
slog.PFile, err = os.OpenFile(slog.FileFullName, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
if err != nil {
fmt.Printf("OpenFile log file err: %s\n", err.Error())
return
}
slog.Log.SetOutput(slog.PFile)
slog.LogCurSize = 0
}
}
func (slog *SizeLog) Debug(v ...interface{}) {
if slog.LogLevel == LogLevelDebug {
out := fmt.Sprintf("[DEBUG][%d] %s", goroutineid.GetGoID(), fmt.Sprint(v...))
slog.LogCurSize += PrefixHeadLen + len(out)
slog.Log.Output(3, out)
slog.rotate()
}
}
func (slog *SizeLog) DebugF(format string, args ...interface{}) {
if slog.LogLevel == LogLevelDebug {
msg := fmt.Sprintf(format, args...)
out := fmt.Sprintf("[DEBUG][%d] %s", goroutineid.GetGoID(), msg)
slog.LogCurSize += PrefixHeadLen + len(out)
slog.Log.Output(3, out)
slog.rotate()
}
}
func (slog *SizeLog) Info(v ...interface{}) {
if slog.LogLevel >= LogLevelInfo {
out := fmt.Sprintf("[INFO][%d] %s", goroutineid.GetGoID(), fmt.Sprint(v...))
slog.LogCurSize += PrefixHeadLen + len(out)
slog.Log.Output(3, out)
slog.rotate()
}
}
func (slog *SizeLog) InfoF(format string, args ...interface{}) {
if slog.LogLevel >= LogLevelInfo {
msg := fmt.Sprintf(format, args...)
out := fmt.Sprintf("[INFO][%d] %s", goroutineid.GetGoID(), msg)
slog.LogCurSize += PrefixHeadLen + len(out)
slog.Log.Output(3, out)
slog.rotate()
}
}
func (slog *SizeLog) Warn(v ...interface{}) {
if slog.LogLevel >= LogLevelWarn {
out := fmt.Sprintf("[WARN][%d] %s", goroutineid.GetGoID(), fmt.Sprint(v...))
slog.LogCurSize += PrefixHeadLen + len(out)
slog.Log.Output(3, out)
slog.rotate()
}
}
func (slog *SizeLog) WarnF(format string, args ...interface{}) {
if slog.LogLevel >= LogLevelWarn {
msg := fmt.Sprintf(format, args...)
out := fmt.Sprintf("[WARN][%d] %s", goroutineid.GetGoID(), msg)
slog.LogCurSize += PrefixHeadLen + len(out)
slog.Log.Output(3, out)
slog.rotate()
}
}
func (slog *SizeLog) Error(v ...interface{}) {
if slog.LogLevel >= LogLevelError {
out := fmt.Sprintf("[ERRO][%d] %s", goroutineid.GetGoID(), fmt.Sprint(v...))
slog.LogCurSize += PrefixHeadLen + len(out)
slog.Log.Output(3, out)
slog.rotate()
}
}
func (slog *SizeLog) ErrorF(format string, args ...interface{}) {
if slog.LogLevel >= LogLevelError {
msg := fmt.Sprintf(format, args...)
out := fmt.Sprintf("[ERRO][%d] %s", goroutineid.GetGoID(), msg)
slog.LogCurSize += PrefixHeadLen + len(out)
slog.Log.Output(3, out)
slog.rotate()
}
}