Struct driverkit::iomem::DmaAllocator

source · [−]

pub struct DmaAllocator;

Expand description

An allocator that (supposedly) backs memory accessible by devices.

Trait Implementations

source

impl Allocator for DmaAllocator

source

fn allocate(&self, layout: Layout) -> Result<NonNull<[u8 ]>, AllocError>

🔬 This is a nightly-only experimental API. (allocator_api)

Allocates IO memory.

source

unsafe fn deallocate(&self, ptr: NonNull<u8>, layout: Layout)

🔬 This is a nightly-only experimental API. (allocator_api)

Deallocates the previously allocated IO memory.

source

fn allocate_zeroed(&self, layout: Layout) -> Result<NonNull<[u8 ]>, AllocError>

🔬 This is a nightly-only experimental API. (allocator_api)

Behaves like allocate, but also ensures that the returned memory is zero-initialized. Read more

source

unsafe fn grow(
 &self,
 ptr: NonNull<u8>,
 old_layout: Layout,
 new_layout: Layout
) -> Result<NonNull<[u8 ]>, AllocError>

🔬 This is a nightly-only experimental API. (allocator_api)

Attempts to extend the memory block. Read more

source

unsafe fn grow_zeroed(
 &self,
 ptr: NonNull<u8>,
 old_layout: Layout,
 new_layout: Layout
) -> Result<NonNull<[u8 ]>, AllocError>

🔬 This is a nightly-only experimental API. (allocator_api)

Behaves like grow, but also ensures that the new contents are set to zero before being returned. Read more

source

unsafe fn shrink(
 &self,
 ptr: NonNull<u8>,
 old_layout: Layout,
 new_layout: Layout
) -> Result<NonNull<[u8 ]>, AllocError>

🔬 This is a nightly-only experimental API. (allocator_api)

Attempts to shrink the memory block. Read more

source

fn by_ref(&self) -> &Self

🔬 This is a nightly-only experimental API. (allocator_api)

Creates a “by reference” adapter for this instance of Allocator. Read more

source

impl Clone for DmaAllocator

source

fn clone(&self) -> DmaAllocator

Returns a copy of the value. Read more

1.0.0 · source

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

source

impl Debug for DmaAllocator

source

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

source

impl Default for DmaAllocator

source

fn default() -> DmaAllocator

Returns the “default value” for a type. Read more

source

impl Copy for DmaAllocator

Auto Trait Implementations

impl RefUnwindSafe for DmaAllocator

impl Send for DmaAllocator

impl Sync for DmaAllocator

impl Unpin for DmaAllocator

impl UnwindSafe for DmaAllocator

Blanket Implementations

source

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

source

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

source

impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

source

impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

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

Mutably borrows from an owned value. Read more

source

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

source

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

const: unstable · source

fn into(self) -> U

Calls U::from(self).

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

source

impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

source

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

source

fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

source

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

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

source

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

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct driverkit::iomem::DmaAllocator

Trait Implementations

impl Allocator for DmaAllocator

fn allocate(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError>

unsafe fn deallocate(&self, ptr: NonNull<u8>, layout: Layout)

fn allocate_zeroed(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError>

unsafe fn grow( &self, ptr: NonNull<u8>, old_layout: Layout, new_layout: Layout) -> Result<NonNull<[u8]>, AllocError>

unsafe fn grow_zeroed( &self, ptr: NonNull<u8>, old_layout: Layout, new_layout: Layout) -> Result<NonNull<[u8]>, AllocError>

unsafe fn shrink( &self, ptr: NonNull<u8>, old_layout: Layout, new_layout: Layout) -> Result<NonNull<[u8]>, AllocError>

fn by_ref(&self) -> &Self

impl Clone for DmaAllocator

fn clone(&self) -> DmaAllocator

fn clone_from(&mut self, source: &Self)

impl Debug for DmaAllocator

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl Default for DmaAllocator

fn default() -> DmaAllocator

impl Copy for DmaAllocator

Auto Trait Implementations

impl RefUnwindSafe for DmaAllocator

impl Send for DmaAllocator

impl Sync for DmaAllocator

impl Unpin for DmaAllocator

impl UnwindSafe for DmaAllocator

Blanket Implementations

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

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

impl<T> ToOwned for T where T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

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

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

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

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

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

fn allocate(&self, layout: Layout) -> Result<NonNull<[u8 ]>, AllocError>

fn allocate_zeroed(&self, layout: Layout) -> Result<NonNull<[u8 ]>, AllocError>

unsafe fn grow(
&self,
ptr: NonNull<u8>,
old_layout: Layout,
new_layout: Layout
) -> Result<NonNull<[u8 ]>, AllocError>

unsafe fn grow_zeroed(
&self,
ptr: NonNull<u8>,
old_layout: Layout,
new_layout: Layout
) -> Result<NonNull<[u8 ]>, AllocError>

unsafe fn shrink(
&self,
ptr: NonNull<u8>,
old_layout: Layout,
new_layout: Layout
) -> Result<NonNull<[u8 ]>, AllocError>

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

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

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

impl<T> ToOwned for T where
T: Clone,

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

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