devices::virtio::video::async_cmd_desc_map

Struct AsyncCmdDescMap

pub struct AsyncCmdDescMap(BTreeMap<AsyncCmdTag, DescriptorChain>);

Expand description

AsyncCmdDescMap is a BTreeMap which stores descriptor chains in which asynchronous responses will be written.

Tuple Fields§

§0: BTreeMap<AsyncCmdTag, DescriptorChain>

Implementations§

impl AsyncCmdDescMap

pub fn insert(&mut self, tag: AsyncCmdTag, descriptor_chain: DescriptorChain)

pub fn remove(&mut self, tag: &AsyncCmdTag) -> Option<DescriptorChain>

pub fn create_cancellation_responses( &self, target_stream_id: &u32, target_queue_type: Option<QueueType>, processing_tag: Option<AsyncCmdTag>, ) -> Vec<AsyncCmdResponse>

Returns a list of AsyncCmdResponses to cancel pending commands that target stream target_stream_id. If target_queue_type is specified, then only create the requests for the specified queue. Otherwise, create the requests for both input and output queue. If processing_tag is specified, a cancellation request for that tag will not be created.

Trait Implementations§

impl Default for AsyncCmdDescMap

fn default() -> AsyncCmdDescMap

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

Auto Trait Implementations§

impl Freeze for AsyncCmdDescMap

impl RefUnwindSafe for AsyncCmdDescMap

impl Send for AsyncCmdDescMap

impl Sync for AsyncCmdDescMap

impl Unpin for AsyncCmdDescMap

impl UnwindSafe for AsyncCmdDescMap

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
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fn borrow_mut(&mut self) -> &mut T

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impl<T> From<T> for T

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impl<T, U> Into<U> for T
where U: From<T>,

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