Struct dma_boom::MappedDmaBuf

pub(crate) struct MappedDmaBuf<T> {
    pub(crate) buf: T,
    pub(crate) len: usize,
    pub(crate) mmap: *mut u8,
}

A DmaBuf mapped in memory.

This uses an arbitrary T, even though the only 2 types possible are &DmaBuf and &mut DmaBuf, but Rust doesn’t provide a generic over mutability.

The mutability makes a difference with &DmaBuf: that one can be mapped multiple times in independent places.

Fields

buf: T

len: usize

mmap: *mut u8

Implementations

impl<T: AsFd> MappedDmaBuf<T>

pub(crate) fn as_slice(&self) -> &[u8]

impl MappedDmaBuf<&mut DmaBuf>

pub(crate) fn as_slice_mut(&mut self) -> &mut [u8]

Trait Implementations

impl<T: Debug> Debug for MappedDmaBuf<T>

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

Formats the value using the given formatter.

impl<T> Drop for MappedDmaBuf<T>

fn drop(&mut self)

Executes the destructor for this type.