Struct Id 

pub struct Id(NonZero<u64>);

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());
}

Tuple Fields

0: NonZero<u64>

Trait Implementations

impl Clone for Id

fn clone(&self) -> Id

Returns a duplicate 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<(), Error>

Formats the value using the given formatter.

impl Display for Id

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

Formats the value using the given formatter.

impl Hash for Id

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 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