/// Convenience macro to get a Option<&ssp::AesKey> from the [DeviceHandle](crate::DeviceHandle).
///
/// If the encryption key is unset, returns `None`.
#[macro_export]
macro_rules! encryption_key {
($handle:tt) => {{
$handle.encryption_key()?.as_ref()
}};
}
/// Continues to next loop iteration on an `Err(_)` result.
#[macro_export]
macro_rules! continue_on_err {
($res:expr, $err:expr) => {{
match $res {
Ok(res) => res,
Err(err) => {
let err_msg = $err;
log::warn!("{err_msg}: {err}");
continue;
}
}
}};
}