Enum vulkano::sync::ExternalFenceHandleType

#[non_exhaustive]
#[repr(u32)]
pub enum ExternalFenceHandleType {
    OpaqueFd,
    OpaqueWin32,
    OpaqueWin32Kmt,
    SyncFd,
}

The handle type used for Vulkan external fence APIs.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

OpaqueFd

A POSIX file descriptor handle that is only usable with Vulkan and compatible APIs.

This handle type has reference transference.

OpaqueWin32

A Windows NT handle that is only usable with Vulkan and compatible APIs.

This handle type has reference transference.

OpaqueWin32Kmt

A Windows global share handle that is only usable with Vulkan and compatible APIs.

This handle type has reference transference.

SyncFd

A POSIX file descriptor handle to a Linux Sync File or Android Fence object.

This handle type has copy transference.

Implementations

impl ExternalFenceHandleType

pub fn has_copy_transference(&self) -> bool

Returns whether the given handle type has copy transference rather than reference transference.

Imports of handles with copy transference must always be temporary. Exports of such handles must only occur if the fence is already signaled, or if there is a fence signal operation pending in a queue.

Trait Implementations

impl Clone for ExternalFenceHandleType

fn clone(&self) -> ExternalFenceHandleType

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExternalFenceHandleType

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

Formats the value using the given formatter.

impl From<ExternalFenceHandleType> for ExternalFenceHandleTypeFlags

fn from(val: ExternalFenceHandleType) -> Self

Converts to this type from the input type.

impl From<ExternalFenceHandleType> for ExternalFenceHandleTypes

fn from(val: ExternalFenceHandleType) -> Self

Converts to this type from the input type.

impl Hash for ExternalFenceHandleType

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where
    H: Hasher,
    Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq<ExternalFenceHandleType> for ExternalFenceHandleType

fn eq(&self, other: &ExternalFenceHandleType) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl TryFrom<ExternalFenceHandleTypeFlags> for ExternalFenceHandleType

type Error = ()

The type returned in the event of a conversion error.

fn try_from(val: ExternalFenceHandleTypeFlags) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for ExternalFenceHandleType

impl Eq for ExternalFenceHandleType

impl StructuralEq for ExternalFenceHandleType

impl StructuralPartialEq for ExternalFenceHandleType