Struct ArmRng 

pub struct ArmRng;

Implement an interface for accessing Arm v8.5 RNG instructions.

An empty struct is used to confirm that the system has the instructions available.

Example

use aarch64_cpu::asm::random::ArmRng;
if let Some(rng) = ArmRng::new() {
    let rand_num = rng.rndr();
}

Implementations

impl ArmRng

pub fn new() -> Option<ArmRng>

Return an empty object that is used to gate calling rndr and rndrss on discovery of the feature so each call doesn’t need to confirm it.

pub fn rndr(&self) -> Option<u64>

Return an random number from the Arm v8.5 RNG.

This returns an option because the instruction can fail (e.g. the entropy is exhausted or the RNG has failed.)

pub fn rndrss(&self) -> Option<u64>

Return a random number from the Arm v8.5 RNG after reseeding it.

This returns an option because the instruction can fail (e.g. the entropy is exhausted or the RNG has failed.)

Trait Implementations

impl Clone for ArmRng

fn clone(&self) -> ArmRng

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ArmRng

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Copy for ArmRng