Struct FenceContext 

pub struct FenceContext<T: FenceContextOps + Send + Sync> { /* private fields */ }

A dma-fence context. A fence context takes care of associating related fences with each other, providing each with raising sequence numbers and a common identifier.

Implementations

impl<T: FenceContextOps + Send + Sync> FenceContext<T>

pub fn project<'__this>( self: Pin<&'__this mut Self>, ) -> __Projection<'__this, T>

Pin-projects all fields of Self.

These fields are structurally pinned:

• data

These fields are not structurally pinned:

• nr
• seqno
• driver_name
• timeline_name
• nr_of_unsignaled_fences

pub fn with_project<'__this, R>( self: Pin<&'__this mut Self>, f: impl FnOnce(__ProjectionLt<'__this, T>) -> R, ) -> R

Pin-projects all fields of Self with proper lifetime.

These fields are structurally pinned:

• data

These fields are not structurally pinned:

• nr
• seqno
• driver_name
• timeline_name
• nr_of_unsignaled_fences

pub fn with_project_ref<'__this, R>( self: Pin<&'__this Self>, f: impl FnOnce(__ProjectionRef<'__this, T>) -> R, ) -> R

Pin-projects all fields of Self from a shared reference with proper lifetime.

These fields are structurally pinned:

• data

These fields are not structurally pinned:

• nr
• seqno
• driver_name
• timeline_name
• nr_of_unsignaled_fences

impl<'a, T: Send + Sync + FenceContextOps> FenceContext<T>

pub fn new<E>( initial_seqno: u64, driver_name: &CStr, timeline_name: &CStr, data: impl PinInit<T, E>, ) -> impl PinInit<Self, Error>

where Error: From<E>,

Create a new FenceContext.

pub fn new_fence_allocation( &self, data: T::FenceDataType, ) -> Result<DriverFenceAllocation<'_, T>>

Allocate the memory for a DriverFence and already store data inside.

This is needed because many times, creation of a DriverFence must not fail, and allocating might deadlock in some situations.

The data you pass here must not perform any operations that are illegal in atomic context in its Drop implementation.

Trait Implementations

impl<T: FenceContextOps + Send + Sync> Drop for FenceContext<T>

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.

impl<T: FenceContextOps + Send + Sync> HasPinData for FenceContext<T>

type PinData = __ThePinData<T>

fn __pin_data(_: InitData<Self>) -> Self::PinData

impl<T: FenceContextOps + Send + Sync> PinnedDrop for FenceContext<T>

fn drop(self: Pin<&mut Self>, _: OnlyCallFromDrop)

Executes the pinned destructor of this type.