Struct SyncFd 

pub struct SyncFd(/* private fields */);

A shared, reference-counted GPU-completion sync fd: an exported timeline semaphore a producer signals when a frame’s GPU work finishes. The producer exports it once per stream and attaches a Clone to every frame via OwnedDmaBuf::with_sync; the fd is closed exactly once, on the last drop. A consumer recovers it with OwnedDmaBuf::sync_fd / OwnedDmaBuf::sync.

Implementations

impl SyncFd

pub unsafe fn from_raw(fd: i32) -> Self

Safety

fd must be a valid semaphore descriptor (e.g. a VK_KHR_external_semaphore_fd export) with no other owner; the caller transfers ownership.

pub fn as_raw(&self) -> i32

The raw fd, valid for as long as this (or a clone) is held.

Trait Implementations

impl Clone for SyncFd

fn clone(&self) -> SyncFd

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SyncFd

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

Formats the value using the given formatter.