Function initialize_rng

libs/orbit-essentials/src/utils/random.rs:46–63

Initializes the random number generator if it has not been initialized yet. This function is async because it may need to call into the management canister to get a seed with `raw_rand``.

()

///
/// This function is async because it may need to call into the management canister to get a seed with `raw_rand``.
pub async fn initialize_rng() -> Result<(), String> {
    ic_cdk::print("started to initialize rng");

    let (created_seed,) = management_canister::main::raw_rand()
        .await
        .map_err(|e| e.1)?;

    let seed = created_seed
        .try_into()
        .map_err(|_| "raw_rand not 32 bytes".to_string())?;

    initialize_rng_from_seed(seed);

    RAW_RAND_SUCCESSFUL.with(|b| *b.borrow_mut() = true);

    ic_cdk::print("rng succesfully initialized");
    Ok(())
}

/// Initializes the random number generator with the given seed.
pub fn initialize_rng_from_seed(seed: [u8; 32]) {