kernel::alloc::allocator

Struct Kmalloc

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pub struct Kmalloc;
Expand description

The contiguous kernel allocator.

Kmalloc is typically used for physically contiguous allocations up to page size, but also supports larger allocations up to bindings::KMALLOC_MAX_SIZE, which is hardware specific.

For more details see self.

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impl Allocator for Kmalloc

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unsafe fn realloc( ptr: Option<NonNull<u8>>, layout: Layout, old_layout: Layout, flags: Flags, ) -> Result<NonNull<[u8]>, AllocError>

Re-allocate an existing memory allocation to satisfy the requested layout. Read more
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fn alloc(layout: Layout, flags: Flags) -> Result<NonNull<[u8]>, AllocError>

Allocate memory based on layout and flags. Read more
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unsafe fn free(ptr: NonNull<u8>, layout: Layout)

Free an existing memory allocation. Read more

Auto Trait Implementations§

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, E> Init<T, E> for T

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unsafe fn __init(self, slot: *mut T) -> Result<(), E>

Initializes slot. Read more
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fn chain<F>(self, f: F) -> ChainInit<Self, F, T, E>
where F: FnOnce(&mut T) -> Result<(), E>,

First initializes the value using self then calls the function f with the initialized value. Read more
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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, E> PinInit<T, E> for T

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unsafe fn __pinned_init(self, slot: *mut T) -> Result<(), E>

Initializes slot. Read more
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fn pin_chain<F>(self, f: F) -> ChainPinInit<Self, F, T, E>
where F: FnOnce(Pin<&mut T>) -> Result<(), E>,

First initializes the value using self then calls the function f with the initialized value. Read more
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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.