Struct v4l::io::userptr::arena::Arena

pub struct Arena {
    handle: Arc<Handle>,
    pub bufs: Vec<Vec<u8>>,
    pub buf_type: Type,
}

Manage user allocated buffers

All buffers are released in the Drop impl.

Fields

handle: Arc<Handle>

bufs: Vec<Vec<u8>>

buf_type: Type

Implementations

impl Arena

pub fn new(handle: Arc<Handle>, buf_type: Type) -> Self

Returns a new buffer manager instance

You usually do not need to use this directly. A UserBufferStream creates its own manager instance by default.

Arguments

• dev - Device handle to get its file descriptor
• buf_type - Type of the buffers

fn requestbuffers_desc(&self) -> v4l2_requestbuffers

pub fn allocate(&mut self, count: u32) -> Result<u32>

pub fn release(&mut self) -> Result<()>

Trait Implementations

impl Drop for Arena

fn drop(&mut self)

Executes the destructor for this type.