Struct ReadbackRingSet 

pub struct ReadbackRingSet { /* private fields */ }

Size-classed collection of readback rings for direct dispatch.

Implementations

impl ReadbackRingSet

pub fn new() -> Self

Construct an empty ring set using the default slot count.

pub fn with_requested_slots(raw_slots: Option<&str>) -> Self

Construct an empty ring set from a raw slot-count setting.

Passing None uses the production default. This keeps test and embedded callers off process-global environment mutation while preserving the same parser and clamping semantics as Self::new.

pub fn ring_for( &self, device: &Device, byte_len: u64, ) -> Result<Arc<ReadbackRing>, BackendError>

Return the ring whose staging slots can hold byte_len.

Errors

Returns a backend error if the requested byte length overflows wgpu copy alignment.

pub fn existing_ring_for( &self, byte_len: u64, ) -> Result<Option<Arc<ReadbackRing>>, BackendError>

Return an existing size-classed ring without taking exclusive access.

Errors

Returns a backend error if the requested byte length overflows wgpu copy alignment.

pub fn slots_per_ring(&self) -> usize

Number of slots configured for each runtime ring instance.

Trait Implementations

impl Default for ReadbackRingSet

fn default() -> Self

Returns the “default value” for a type.