Struct Id

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

Available on tokio_unstable and crate feature rt only.

An opaque ID that uniquely identifies a runtime relative to all other currently running runtimes.

Notes

• Runtime IDs are unique relative to other currently running runtimes. When a runtime completes, the same ID may be used for another runtime.
• Runtime IDs are not sequential, and do not indicate the order in which runtimes are started or any other data.
• The runtime ID of the currently running task can be obtained from the Handle.

Examples

use tokio::runtime::Handle;

#[tokio::main(flavor = "multi_thread", worker_threads = 4)]
async fn main() {
  println!("Current runtime id: {}", Handle::current().id());
}

Note: This is an unstable API. The public API of this type may break in 1.x releases. See the documentation on unstable features for details.

Trait Implementations

impl Clone for Id

fn clone(&self) -> Id

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Id

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

Formats the value using the given formatter.

impl Display for Id

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

Formats the value using the given formatter.

impl From<NonZero<u32>> for Id

fn from(value: NonZeroU32) -> Self

Converts to this type from the input type.

impl From<NonZero<u64>> for Id

fn from(value: NonZeroU64) -> Self

Converts to this type from the input type.

impl Hash for Id

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 Id

fn eq(&self, other: &Id) -> 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 Copy for Id

impl Eq for Id

impl StructuralPartialEq for Id