Struct SlotLease 

pub struct SlotLease<B> { /* private fields */ }

One frame’s hold on one slot: the bump cursor its uploads are placed at.

Released by Self::finish, which moves the slot in flight and returns the token its fence waits on. A lease dropped without finishing leaves the slot SlotState::Abandoned — whatever it recorded is still correct to submit, but no re-map was asked for, so the slot is replaced rather than reused.

Implementations

impl<B> SlotLease<B>

pub fn index(&self) -> usize

Which slot of the ring this is.

pub fn buffer(&self) -> &B

The slot’s buffer, which every copy this frame records reads from.

pub fn capacity(&self) -> u64

The slot’s capacity in bytes.

pub fn used(&self) -> u64

Bytes placed so far, alignment padding included.

pub fn reserve(&mut self, len: u64, alignment: u64) -> Option<u64>

Places len bytes at the next multiple of alignment, returning their offset, or None (placing nothing) when they do not fit.

pub fn finish(self) -> FenceToken

Ends the frame’s hold: the slot goes in flight, waiting on the token.

Trait Implementations

impl<B: Debug> Debug for SlotLease<B>

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

Formats the value using the given formatter.

impl<B> Drop for SlotLease<B>

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.