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#[link(name = "clf")]
extern "C" {
fn _cache_line_flush(begin_ptr: *const u8, end_ptr: *const u8);
}
#[allow(clippy::not_unsafe_ptr_arg_deref)]
pub fn cache_line_flush_with_ptr(begin_ptr: *const u8, end_ptr: *const u8) {
unsafe { _cache_line_flush(begin_ptr, end_ptr) };
}
pub fn cache_line_flush_with_slice<T>(slice: &[T]) {
let begin_ptr = slice.as_ptr();
let end_ptr = unsafe { begin_ptr.add(slice.len()) };
unsafe { _cache_line_flush(begin_ptr as *const u8, end_ptr as *const u8) };
}
#[cfg(test)]
mod tests {
#[test]
fn it_works_1() {
let a = vec![1, 2, 3, 4, 5, 6, 7, 8, 9];
super::cache_line_flush_with_ptr(a.as_ptr(), unsafe { a.as_ptr().add(a.len()) });
assert_eq!(2 + 2, 4);
}
#[test]
fn it_works_2() {
let a = vec![1, 2, 3, 4, 5, 6, 7, 8, 9];
super::cache_line_flush_with_slice(&a);
assert_eq!(2 + 2, 4);
}
}