1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
#![cfg(feature = "rt")]
#![cfg(not(target_os = "wasi"))] // Wasi doesn't support threads
#![warn(rust_2018_idioms)]
use tokio::runtime::Builder;
use tokio::time::*;
use tokio_util::context::RuntimeExt;
#[test]
fn tokio_context_with_another_runtime() {
let rt1 = Builder::new_multi_thread()
.worker_threads(1)
// no timer!
.build()
.unwrap();
let rt2 = Builder::new_multi_thread()
.worker_threads(1)
.enable_all()
.build()
.unwrap();
// Without the `HandleExt.wrap()` there would be a panic because there is
// no timer running, since it would be referencing runtime r1.
rt1.block_on(rt2.wrap(async move { sleep(Duration::from_millis(2)).await }));
}
|
