18 lines
540 B
Rust
18 lines
540 B
Rust
use core::future::Future;
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/// Random-number Generator
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pub trait Rng {
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type Error;
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type RngFuture<'a>: Future<Output = Result<(), Self::Error>> + 'a
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where
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Self: 'a;
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/// Completely fill the provided buffer with random bytes.
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///
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/// May result in delays if entropy is exhausted prior to completely
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/// filling the buffer. Upon completion, the buffer will be completely
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/// filled or an error will have been reported.
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fn fill_bytes<'a>(&'a mut self, dest: &'a mut [u8]) -> Self::RngFuture<'a>;
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}
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