Enum vulkano::sync::semaphore::ExternalSemaphoreHandleType

#[non_exhaustive]
#[repr(u32)]
pub enum ExternalSemaphoreHandleType {
    OpaqueFd = 1,
    OpaqueWin32 = 2,
    OpaqueWin32Kmt = 4,
    D3D12Fence = 8,
    SyncFd = 16,
    ZirconEvent = 128,
}

The handle type used to export or import semaphores to/from an external source.

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 = 1

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

This handle type has reference transference.

OpaqueWin32 = 2

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

This handle type has reference transference.

OpaqueWin32Kmt = 4

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

This handle type has reference transference.

D3D12Fence = 8

A Windows NT handle that refers to a Direct3D 11 or 12 fence.

This handle type has reference transference.

SyncFd = 16

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

This handle type has copy transference.

ZirconEvent = 128

A handle to a Zircon event object.

This handle type has reference transference.

The fuchsia_external_semaphore extension must be enabled on the device.

Implementations

impl ExternalSemaphoreHandleType

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 no queue is waiting on the semaphore, and only if the semaphore is already signaled, or if there is a semaphore signal operation pending in a queue.

Trait Implementations

impl Clone for ExternalSemaphoreHandleType

fn clone(&self) -> ExternalSemaphoreHandleType

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExternalSemaphoreHandleType

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

Formats the value using the given formatter.

impl From<ExternalSemaphoreHandleType> for ExternalSemaphoreHandleTypeFlags

fn from(val: ExternalSemaphoreHandleType) -> Self

Converts to this type from the input type.

impl From<ExternalSemaphoreHandleType> for ExternalSemaphoreHandleTypes

fn from(val: ExternalSemaphoreHandleType) -> Self

Converts to this type from the input type.

impl FromIterator<ExternalSemaphoreHandleType> for ExternalSemaphoreHandleTypes

fn from_iter<T>(iter: T) -> Selfwhere T: IntoIterator<Item = ExternalSemaphoreHandleType>,

Creates a value from an iterator.

impl Hash for ExternalSemaphoreHandleType

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 for ExternalSemaphoreHandleType

fn eq(&self, other: &ExternalSemaphoreHandleType) -> 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<ExternalSemaphoreHandleTypeFlags> for ExternalSemaphoreHandleType

type Error = ()

The type returned in the event of a conversion error.

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

Performs the conversion.

impl Copy for ExternalSemaphoreHandleType

impl Eq for ExternalSemaphoreHandleType

impl StructuralEq for ExternalSemaphoreHandleType

impl StructuralPartialEq for ExternalSemaphoreHandleType