Struct ResourceId 

pub struct ResourceId { /* private fields */ }

Generational index into the resource table.

Combines a slot index with a generation counter to prevent ABA problems. When a resource is freed and its slot reused, the generation is incremented. Any handle holding the old generation will fail validation.

Invariants

• index identifies the slot in the resource table.
• generation is incremented each time the slot is reused.
• A handle is valid only if its generation matches the slot’s current generation.

Examples

use torvyn_types::ResourceId;

let id = ResourceId::new(10, 1);
assert_eq!(id.index(), 10);
assert_eq!(id.generation(), 1);
assert_eq!(format!("{}", id), "resource-10:g1");

Implementations

impl ResourceId

pub const fn new(index: u32, generation: u32) -> Self

Create a new ResourceId.

HOT PATH — called during resource allocation.

pub const fn index(&self) -> u32

Returns the slot index.

pub const fn generation(&self) -> u32

Returns the generation counter.

pub const fn next_generation(&self) -> Self

Returns a new ResourceId with the same index but incremented generation.

HOT PATH — called when a resource slot is reused.

Trait Implementations

impl Clone for ResourceId

fn clone(&self) -> ResourceId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ResourceId

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ResourceId

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for ResourceId

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

Formats the value using the given formatter.

impl From<ResourceId> for BufferHandle

fn from(id: ResourceId) -> Self

Converts to this type from the input type.

impl Hash for ResourceId

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 ResourceId

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl Serialize for ResourceId

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for ResourceId

impl Eq for ResourceId

impl StructuralPartialEq for ResourceId