Reusable Errors

conn_release.go

// condRelease releases this connection if the error pointed to by err
// is nil (not an error) or is predefined Reusable error
// The purpose is to not recycle TCP connections that are bad.
func (cn *conn) ConnRelease(err *error) {
	if *err == nil || resumableError(*err) {
		cn.release()
	} else {
		cn.nc.Close()
	}
}

func resumableError(err error) bool {
	switch err {
	case ReusableError:
		return true
	}
	return false
}