Struct vulkano::query::QueryPool

pub struct QueryPool { /* private fields */ }

A collection of one or more queries of a particular type.

Implementations

impl QueryPool

pub fn new(
    device: Arc<Device>,
    create_info: QueryPoolCreateInfo
) -> Result<Arc<QueryPool>, QueryPoolCreationError>

Creates a new QueryPool.

Panics

• Panics if create_info.query_count is 0.

pub unsafe fn from_handle(
    device: Arc<Device>,
    handle: QueryPool,
    create_info: QueryPoolCreateInfo
) -> Arc<QueryPool>

Creates a new QueryPool from a raw object handle.

Safety

• handle must be a valid Vulkan object handle created from device.
• create_info must match the info used to create the object.

pub fn query_type(&self) -> QueryType

Returns the query type of the pool.

pub fn query_count(&self) -> u32

Returns the number of query slots of this query pool.

pub fn query(&self, index: u32) -> Option<Query<'_>>

Returns a reference to a single query slot, or None if the index is out of range.

pub fn queries_range(&self, range: Range<u32>) -> Option<QueriesRange<'_>>

Returns a reference to a range of queries, or None if out of range.

Panics

• Panics if the range is empty.

Trait Implementations

impl Debug for QueryPool

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

Formats the value using the given formatter.

impl DeviceOwned for QueryPool

fn device(&self) -> &Arc<Device>

Returns the device that owns Self.

impl Drop for QueryPool

fn drop(&mut self)

Executes the destructor for this type.

impl Hash for QueryPool

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<QueryPool> for QueryPool

fn eq(&self, other: &Self) -> 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 VulkanObject for QueryPool

type Handle = QueryPool

The type of the object.

fn handle(&self) -> Self::Handle

Returns the raw Vulkan handle of the object.

impl Eq for QueryPool