Function try_current 

pub fn try_current() -> Option<Task>

Available on crate features alloc and default only.

Returns a handle to the current task if called within the context of a task created by block_on, spawn, or Builder::spawn, otherwise returns None.

Examples

use async_std::task;

match task::try_current() {
    Some(t) => println!("The name of this task is {:?}", t.name()),
    None    => println!("Not inside a task!"),
}