Trait BufferHandle

pub trait BufferHandle: Sized {
    // Required methods
    fn try_clone(&self) -> Result<Self, Error>;
    fn get_mapping(
        &self,
        offset: usize,
        size: usize,
    ) -> Result<MemoryMappingArena, MmapError>;
}

Trait for types that can serve as video buffer backing memory.

Required Methods

fn try_clone(&self) -> Result<Self, Error>

Try to clone this handle. This must only create a new reference to the same backing memory and not duplicate the buffer itself.

fn get_mapping( &self, offset: usize, size: usize, ) -> Result<MemoryMappingArena, MmapError>

Returns a linear mapping of [offset..offset+size] of the memory backing this buffer.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl BufferHandle for GuestResourceHandle

impl BufferHandle for GuestMemHandle

impl BufferHandle for VirtioObjectHandle