SlabAllocator

Struct SlabAllocator 

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pub struct SlabAllocator<const BSIZE: usize, const GROW_SIZE: usize> {
    head: AtomicU128,
    stamp: AtomicU64,
    grow_aux: SpinLock<()>,
}
Expand description

The slab allocator.

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§head: AtomicU128§stamp: AtomicU64§grow_aux: SpinLock<()>

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impl<const BSIZE: usize, const GROW_SIZE: usize> SlabAllocator<BSIZE, GROW_SIZE>

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const REDZONE_SIZE: usize = BSIZE

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const BLOCK_SIZE: usize

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const G_SIZE: usize

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pub(super) const fn new() -> Self

Create a new slab allocator with slab size T.

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pub(super) unsafe fn grow(&self, allocator: &Palloc) -> Result<(), AllocError>

Grow the internal blocks by allocating from the physical frame.

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pub(super) unsafe fn dealloc(&self, ptr: usize, _allocator: &Palloc)

Deallocate the Block.

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pub(super) unsafe fn alloc( &self, allocator: &Palloc, ) -> Result<NonNull<[u8]>, AllocError>

Allocate a Block from the allocator.

Auto Trait Implementations§

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impl<const BSIZE: usize, const GROW_SIZE: usize> !Freeze for SlabAllocator<BSIZE, GROW_SIZE>

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impl<const BSIZE: usize, const GROW_SIZE: usize> !RefUnwindSafe for SlabAllocator<BSIZE, GROW_SIZE>

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impl<const BSIZE: usize, const GROW_SIZE: usize> Send for SlabAllocator<BSIZE, GROW_SIZE>

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impl<const BSIZE: usize, const GROW_SIZE: usize> Sync for SlabAllocator<BSIZE, GROW_SIZE>

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impl<const BSIZE: usize, const GROW_SIZE: usize> Unpin for SlabAllocator<BSIZE, GROW_SIZE>

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impl<const BSIZE: usize, const GROW_SIZE: usize> UnwindSafe for SlabAllocator<BSIZE, GROW_SIZE>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of [From]<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.