Struct PinnedHostBuf 

pub struct PinnedHostBuf { /* private fields */ }

Owned page-locked CACHEABLE host buffer (flags=0, deliberately NOT write-combined) for the prefix-cache host tier (lane/kv-host-spill-20260830). Same allocation class as PinnedStage above and for the same reason: ctx().alloc_pinned is CU_MEMHOSTALLOC_WRITECOMBINED, which is right for H2D-only staging but pathologically slow for host READS (see the HostBuf CAVEAT in model.rs), and these bytes are CPU-read by the MEMRA_KV_HOST_VERIFY digest arm. Public because the server’s host-tier cache owns these buffers across requests.

Implementations

impl PinnedHostBuf

pub fn new(len: usize) -> Result<Self, Box<dyn Error>>

Allocate len pinned cacheable bytes (a zero-length request still pins one byte so the pointer stays valid, mirroring the device planes’ alloc_u8(kb.max(1)) convention).

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn as_slice(&self) -> &[u8]

pub fn as_mut_slice(&mut self) -> &mut [u8]

Trait Implementations

impl Drop for PinnedHostBuf

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 Send for PinnedHostBuf