Struct v4l::io::dmabuf::arena::BufferSwapper

struct BufferSwapper<T>(Vec<LockedBuffer<T>>);

Doesn’t cleanup buffers in any way, so you have to ensure that

Tuple Fields

0: Vec<LockedBuffer<T>>

Implementations

impl<T> BufferSwapper<T>

fn new(bufs: Vec<T>) -> Self

fn len(&self) -> usize

fn all_locked(&self) -> bool

pub fn replace_buffer( &mut self, buf: BufProtected<T>, ) -> Result<usize, (BufProtected<T>, &'static str)>

Finds the kernel index for this buffer and places it there. Doesn’t check if the buffer was there already. Returns the kernel index.

pub fn take_buffer( &mut self, index: usize, ) -> Result<BufProtected<T>, &'static str>

Removes and returns buffer at this kernel index.

pub fn get_buf_mut(&mut self, index: usize) -> Result<&mut T, &'static str>

Returns a writeably-locked buffer for this index