func (d *SRTM) Destroy() {
	d.mtx.Lock()
	d.cache.Purge()
	close(d.done)
	d.mtx.Unlock()
}
// Destroy clean all internal data
Destroy clean all internal data
// Destroy clean all internal data
func (d *SRTM) Destroy() {
	d.mtx.Lock()
	d.cache.Purge()
	close(d.done)
	d.mtx.Unlock()
}
func ( d * SRTM ) Destroy ( ) { d . mtx . Lock ( ) d . cache . Purge ( ) close ( d . done ) d . mtx . Unlock ( ) }
Destroy clean all internal data
Destroy clean all internal data