twizzler_rt_abi/
random.rs

1//! Functions for collecting randomness.
2use core::mem::MaybeUninit;
3
4use crate::nk;
5
6bitflags::bitflags! {
7    /// Possible flags to get random.
8    pub struct GetRandomFlags: crate::bindings::get_random_flags {
9        /// Do not block. If the operation would block, return fewer than requested bytes.
10        const NON_BLOCKING = crate::bindings::GET_RANDOM_NON_BLOCKING;
11    }
12}
13
14/// Fill up to buf.len() bytes of randomness into the buffer.
15pub fn twz_rt_get_random(buf: &mut [MaybeUninit<u8>], flags: GetRandomFlags) -> usize {
16    unsafe {
17        nk!(crate::bindings::twz_rt_get_random(
18            buf.as_mut_ptr().cast(),
19            buf.len(),
20            flags.bits()
21        ))
22    }
23}
twizzler_rt_abi/random.rs

twizzler_rt_abi/
random.rs
