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use a boxed array insted of a vec (#85)

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Use a boxed slice instead of a vec since it won't be resized after
initial creation
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Noa Aarts 2025-09-26 21:34:38 +02:00 • committed by GitHub
commit 8f4acac7b3
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1 changed files with 14 additions and 5 deletions
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19
src/grid.rs
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@ -18,7 +18,7 @@ pub trait Grid<I, V> {
pub struct Flut<T> { pub struct Flut<T> {
size_x: usize, size_x: usize,
size_y: usize, size_y: usize,
cells: SyncUnsafeCell<Vec<T>>, cells: SyncUnsafeCell<Box<[T]>>,
last_hash: SyncUnsafeCell<u64>, last_hash: SyncUnsafeCell<u64>,
jpgbuf: RwLock<Vec<u8>>, jpgbuf: RwLock<Vec<u8>>,
} }
@ -32,7 +32,7 @@ impl<T: Clone> Flut<T> {
Flut { Flut {
size_x, size_x,
size_y, size_y,
cells: vec.into(), cells: vec.into_boxed_slice().into(),
last_hash: 0.into(), last_hash: 0.into(),
jpgbuf: RwLock::new(Vec::new()), jpgbuf: RwLock::new(Vec::new()),
} }
@ -128,7 +128,10 @@ mod tests {
async fn test_grid_init_values() { async fn test_grid_init_values() {
let grid = Flut::init(3, 3, 0); let grid = Flut::init(3, 3, 0);
assert_eq!(grid.cells.into_inner(), vec![0, 0, 0, 0, 0, 0, 0, 0, 0]); assert_eq!(
grid.cells.into_inner(),
vec![0, 0, 0, 0, 0, 0, 0, 0, 0].into()
);
} }
#[tokio::test] #[tokio::test]
@ -144,7 +147,10 @@ mod tests {
let grid = Flut::init(3, 3, 0); let grid = Flut::init(3, 3, 0);
grid.set(1, 1, 255); grid.set(1, 1, 255);
grid.set(2, 1, 256); grid.set(2, 1, 256);
assert_eq!(grid.cells.into_inner(), vec![0, 0, 0, 0, 255, 256, 0, 0, 0]); assert_eq!(
grid.cells.into_inner(),
vec![0, 0, 0, 0, 255, 256, 0, 0, 0].into()
);
} }
#[tokio::test] #[tokio::test]
@ -152,7 +158,10 @@ mod tests {
let grid = Flut::init(3, 3, 0); let grid = Flut::init(3, 3, 0);
grid.set(1, 1, 255); grid.set(1, 1, 255);
grid.set(3, 1, 256); grid.set(3, 1, 256);
assert_eq!(grid.cells.into_inner(), vec![0, 0, 0, 0, 255, 0, 0, 0, 0]); assert_eq!(
grid.cells.into_inner(),
vec![0, 0, 0, 0, 255, 0, 0, 0, 0].into()
);
} }
#[tokio::test] #[tokio::test]