test

upload/upload.go

@@ -24,6 +24,7 @@ import (
 	"path"
 	"ppt_server/models"
 	"regexp"
+	"runtime/debug"
 	"strconv"
 	"strings"
 	"time"
@@ -504,13 +505,20 @@ func pdfThumbnail(objectPath string, file *zip.File, bucket *oss.Bucket) error {
 		return errors.New("image ext is not found")
 	}
 
-	var buf strings.Builder
+	var buf bytes.Buffer
 
 	if err = webp.Encode(&buf, img, &webp.Options{Lossless:true}); err != nil {
 		return err
 	}
 
-	r := bytes.NewBufferString(buf.String())
+	r := bytes.NewReader(buf.Bytes())
+
+	defer func() {
+		buf.Reset()
+		debug.FreeOSMemory()
+		time.Sleep(10 * time.Millisecond)
+	}()
+
 
 	objectPathName := objectPath + "images/"