Function getrandom 

pub fn getrandom<Buf: Buffer<u8>>(
    buf: Buf,
    flags: GetRandomFlags,
) -> Result<Buf::Output>

getrandom(buf, flags)—Reads a sequence of random bytes.

This is a very low-level API which may be difficult to use correctly. Most users should prefer to use getrandom or rand APIs instead.

This function is implemented using a system call, and not the vDSO mechanism introduced in Linux 6.11. See #1185 for details.

References

• Linux