Enum VulkanSemaphoreKind 

#[non_exhaustive]
pub enum VulkanSemaphoreKind {
    Timeline,
    Binary,
}

Discriminator for SyncPoint::Vulkan’s VkSemaphore flavour.

VkSemaphore ships in two shapes — binary (one-shot, signal-and- reset) and timeline (monotonic 64-bit payload, multi-waiter, concurrent-signal-safe). A consumer staging a wait must route through VkTimelineSemaphoreSubmitInfo for timeline semaphores and must NOT for binary semaphores — passing the wrong shape risks validation errors, driver-quirk-dependent wrong waits, and (on already-consumed binary signals) hard deadlock at submit time.

The Vulkan API has no public probe that safely distinguishes the two (vkGetSemaphoreCounterValue is undefined on binaries per VUID-vkGetSemaphoreCounterValue-semaphore-03255), so the producer must declare intent at mint time.

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.

Timeline

vk::SemaphoreType::TIMELINE. value is a payload coordinate; any number of waiters may target the same value, and signals with strictly-increasing payloads can be queued concurrently.

Binary

vk::SemaphoreType::BINARY. Single-shot — exactly one signal must pair with exactly one wait. The value field is ignored (set to 0 by convention). Producers carrying binaries here MUST guarantee the wait is the only consumer of the signal.

Trait Implementations

impl Clone for VulkanSemaphoreKind

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for VulkanSemaphoreKind

impl Debug for VulkanSemaphoreKind

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

Formats the value using the given formatter.

impl Eq for VulkanSemaphoreKind

impl PartialEq for VulkanSemaphoreKind

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for VulkanSemaphoreKind