Struct RingScope 

pub struct RingScope<'delivery, T = (), X = ()> { /* private fields */ }

Exclusive access to an EventDelivery’s ring, narrowed to what a submitting caller needs (M18.6).

Held for as long as the value lives, so keep it to the shortest scope that covers a submission: the wait callback needs the same lock to deliver completions.

See EventDelivery::scope for what this deliberately does not expose, and why handing out anything that yields a &mut IoRing would reopen D-43.

Implementations

impl<T, X> RingScope<'_, T, X>

pub fn batch(&mut self) -> Batch<'_, T, X>

Open a Batch against the ring.

The borrow is confined to the returned batch, so no &mut IoRing escapes to the caller.

pub fn outstanding(&self) -> usize

Operations submitted but not yet popped, as IoRing::outstanding.

pub fn version(&self) -> RingVersion

This ring’s negotiated version, as IoRing::version.

pub fn info(&self) -> Result<RingInfo>

Query the ring, as IoRing::info.

Errors

As IoRing::info.

pub fn supports(&self, op: Op) -> bool

Whether this ring supports op, as IoRing::supports.

pub fn supports_raw(&self, op_code: IORING_OP_CODE) -> bool

Whether this ring supports op_code, as IoRing::supports_raw.

pub fn registered_file_count(&self) -> u32

Registered file count, as IoRing::registered_file_count.

pub fn registered_buffer_count(&self) -> u32

Registered buffer count, as IoRing::registered_buffer_count.