Struct JoinHandle 

pub struct JoinHandle<T> { /* private fields */ }

Join handle for spawned tasks 生成任务的join句柄

Allows awaiting task completion and retrieving the result. 允许等待任务完成并检索结果。

Implementations

impl<T> JoinHandle<T>

pub fn id(&self) -> TaskId

Get the task ID 获取任务ID

pub fn is_finished(&self) -> bool

Check if the task has finished (completed, cancelled, or panicked). 检查任务是否已完成（成功完成、已取消或发生panic）。

pub async fn wait(self) -> Result<T, JoinError>

Wait for the task to complete and retrieve its result. 等待任务完成并获取其结果。