Struct devices::virtio::video::async_cmd_desc_map::AsyncCmdDescMap
source · 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§
source§impl AsyncCmdDescMap
impl AsyncCmdDescMap
pub fn insert(&mut self, tag: AsyncCmdTag, descriptor_chain: DescriptorChain)
pub fn remove(&mut self, tag: &AsyncCmdTag) -> Option<DescriptorChain>
sourcepub fn create_cancellation_responses(
&self,
target_stream_id: &u32,
target_queue_type: Option<QueueType>,
processing_tag: Option<AsyncCmdTag>
) -> Vec<AsyncCmdResponse>
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§
source§impl Default for AsyncCmdDescMap
impl Default for AsyncCmdDescMap
source§fn default() -> AsyncCmdDescMap
fn default() -> AsyncCmdDescMap
Returns the “default value” for a type. Read more
Auto Trait Implementations§
impl RefUnwindSafe for AsyncCmdDescMap
impl Send for AsyncCmdDescMap
impl Sync for AsyncCmdDescMap
impl Unpin for AsyncCmdDescMap
impl UnwindSafe for AsyncCmdDescMap
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
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