func launchToServer(cIn chan StructFile) { var ( err error sf StructFile dbF *mgo.GridFile fi os.FileInfo notClosed bool dbTime time.Time fsTime time.Time ) for notClosed = true; notClosed; sf, notClosed = <-cIn { sf.Name = strings.Replace(sf.Name, dirName, "", 1) dbF = GetGridFile(sf.Name) if dbF == nil { log.Println("add : " + sf.Name) SetGridFile(sf) } else { dbTime = dbF.UploadDate() fi, err = sf.File.Stat() check(err) fsTime = fi.ModTime() if fsTime.After(dbTime) { log.Println("update : " + sf.Name) UpdateGridFile(sf) } } } }