结构体 Id 

pub struct Id(/* 私有字段 */);

唯一标识一个运行时（相对于所有其他当前正在运行的运行时）的不透明 ID。

注意

• 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.

示例

use tokio::runtime::Handle;

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

trait 实现

impl Clone for Id

fn clone(&self) -> Id

返回值的副本。 更多信息

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

Performs copy-assignment from source. 更多信息

impl Debug for Id

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

使用给定的格式化器格式化此值。 更多信息

impl Display for Id

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

使用给定的格式化器格式化此值。 更多信息

impl Hash for Id

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

Feeds this value into the given Hasher. 更多信息

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. 更多信息

impl PartialEq for Id

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

测试 self 与 other 值是否相等，供 == 运算符使用。

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

测试 != 运算符。默认实现几乎总是够用，除非有非常充分的理由，否则不应被覆盖。

impl Copy for Id

impl Eq for Id

impl StructuralPartialEq for Id