// get a temporary file we can use for read/write that deletes itself on close
func (fs FilesystemStorage) obtainTempFile() (f *os.File, err error) {
fname := fmt.Sprintf("tempfile-%x-%d", crypto.RandBytes(4), time.Now().Unix())
log.WithFields(log.Fields{
"pkg": "fs-store",
"filepath": fname,
}).Debug("opening temp file")
f, err = os.OpenFile(filepath.Join(fs.TempDir(), fname), os.O_RDWR|os.O_CREATE, 0400)
return
}
// generate a new message id given name of server
func GenMessageID(name string) MessageID {
r := crypto.RandBytes(4)
t := time.Now()
return MessageID(fmt.Sprintf("<%x$%d@%s>", r, t.Unix(), name))
}