sized_chunks/sized_chunk/
refpool.rs

1use core::mem::MaybeUninit;
2
3use ::refpool::{PoolClone, PoolDefault};
4
5use crate::Chunk;
6
7impl<A, const N: usize> PoolDefault for Chunk<A, N> {
8    unsafe fn default_uninit(target: &mut MaybeUninit<Self>) {
9        let ptr = target.as_mut_ptr();
10        let left_ptr: *mut usize = &mut (*ptr).left;
11        let right_ptr: *mut usize = &mut (*ptr).right;
12        left_ptr.write(0);
13        right_ptr.write(0);
14    }
15}
16
17impl<A, const N: usize> PoolClone for Chunk<A, N>
18where
19    A: Clone,
20{
21    unsafe fn clone_uninit(&self, target: &mut MaybeUninit<Self>) {
22        let ptr = target.as_mut_ptr();
23        let left_ptr: *mut usize = &mut (*ptr).left;
24        let right_ptr: *mut usize = &mut (*ptr).right;
25        let data_ptr: *mut _ = &mut (*ptr).data;
26        let data_ptr: *mut A = (*data_ptr).as_mut_ptr().cast();
27        left_ptr.write(self.left);
28        right_ptr.write(self.right);
29        for index in self.left..self.right {
30            data_ptr.add(index).write((*self.ptr(index)).clone());
31        }
32    }
33}
34
35#[cfg(test)]
36mod test {
37    use super::*;
38    use ::refpool::{Pool, PoolRef};
39    use std::iter::FromIterator;
40
41    #[test]
42    fn default_and_clone() {
43        let pool: Pool<Chunk<usize, 64>> = Pool::new(16);
44        let mut ref1 = PoolRef::default(&pool);
45        {
46            let chunk = PoolRef::make_mut(&pool, &mut ref1);
47            chunk.push_back(1);
48            chunk.push_back(2);
49            chunk.push_back(3);
50        }
51        let ref2 = PoolRef::cloned(&pool, &ref1);
52        let ref3 = PoolRef::clone_from(&pool, &Chunk::from_iter(1..=3));
53        assert_eq!(Chunk::<usize, 64>::from_iter(1..=3), *ref1);
54        assert_eq!(Chunk::<usize, 64>::from_iter(1..=3), *ref2);
55        assert_eq!(Chunk::<usize, 64>::from_iter(1..=3), *ref3);
56        assert_eq!(ref1, ref2);
57        assert_eq!(ref1, ref3);
58        assert_eq!(ref2, ref3);
59        assert!(!PoolRef::ptr_eq(&ref1, &ref2));
60    }
61}
sized_chunks/sized_chunk/refpool.rs

sized_chunks/sized_chunk/
refpool.rs
