Struct FrameAllocOptions Copy item path

impl FrameAllocOptions

pub fn new() -> Self

Creates new options for allocating the specified number of frames.

pub fn zeroed(&mut self, zeroed: bool) -> &mut Self

Sets whether the allocated frames should be initialized with zeros.

If zeroed is true, the allocated frames are filled with zeros. If not, the allocated frames will contain sensitive data and the caller should clear them before sharing them with other components.

By default, the frames are zero-initialized.

pub fn alloc_frame(&self) -> Result<Frame<()>>

Allocates a single untyped frame without metadata.

pub fn alloc_frame_with<M: AnyFrameMeta>(&self, metadata: M) -> Result<Frame<M>>

Allocates a single frame with additional metadata.

pub fn alloc_segment(&self, nframes: usize) -> Result<Segment<()>>

Allocates a contiguous range of untyped frames without metadata.

pub fn alloc_segment_with<M: AnyFrameMeta, F>( &self, nframes: usize, metadata_fn: F, ) -> Result<Segment<M>>
where F: FnMut(Paddr) -> M,

Allocates a contiguous range of frames with additional metadata.

The returned Segment contains at least one frame. The method returns an error if the number of frames is zero.

Trait Implementations§

impl Default for FrameAllocOptions

fn default() -> Self

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

Auto Trait Implementations§

impl UnwindSafe for FrameAllocOptions

Blanket Implementations§

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type Metadata = ()

The metadata type for pointers and references to this type.

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