Struct RegionId 

pub struct RegionId(/* private fields */);

A unique identifier for a region in the runtime.

Regions form a tree structure and own all work spawned within them.

Implementations

impl RegionId

pub const fn from_arena(index: ArenaIndex) -> RegionId

Creates a new region ID from an arena index (internal use).

pub const fn arena_index(self) -> ArenaIndex

Returns the underlying arena index (internal use).

pub fn new_ephemeral() -> RegionId

Creates a new ephemeral region ID for request-scoped contexts created outside the runtime scheduler.

This is intended for production request handling that needs unique identifiers without full runtime region registration.

Trait Implementations

impl Clone for RegionId

fn clone(&self) -> RegionId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RegionId

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for RegionId

fn deserialize<D>( deserializer: D, ) -> Result<RegionId, <D as Deserializer<'de>>::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for RegionId

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

Formats the value using the given formatter.

impl Hash for RegionId

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

where __H: Hasher,

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 Ord for RegionId

fn cmp(&self, other: &RegionId) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for RegionId

fn eq(&self, other: &RegionId) -> 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 PartialOrd for RegionId

fn partial_cmp(&self, other: &RegionId) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for RegionId

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for RegionId

impl Eq for RegionId

impl StructuralPartialEq for RegionId