Enum Access 

pub enum Access {
    Read,
    Write,
    ReadWrite,
}

Access kind for a single block use. Drives the cross-stream dependency edges the resource queues during DeviceMemoryResource::prepare_block_use and the events it records during DeviceMemoryResource::finish_block_use.

• Access::Read — the work consumes the block’s bytes. Must wait on any prior write on a different stream. The resulting event is appended to the block’s outstanding-reads list so future writers (and the eventual deallocate) can wait on it.
• Access::Write — the work overwrites the block’s bytes unconditionally. Must wait on the block’s prior write AND all outstanding reads on different streams. The resulting event becomes the block’s new last-write event; the outstanding-reads list is cleared at finish time.
• Access::ReadWrite — both. Same wait set as Write, and the resulting event likewise replaces last-write.

Variants

Read

Write

ReadWrite

Implementations

impl Access

pub fn reads(self) -> bool

Whether work of this access kind reads the block’s bytes.

pub fn writes(self) -> bool

Whether work of this access kind writes the block’s bytes.

Trait Implementations

impl Clone for Access

fn clone(&self) -> Access

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Access

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for Access

fn eq(&self, other: &Access) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Access

impl Eq for Access

impl StructuralPartialEq for Access