4 releases
0.1.3 | Apr 21, 2023 |
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0.1.2 | Apr 21, 2023 |
0.1.1 | Apr 21, 2023 |
0.1.0 | Apr 21, 2023 |
#1438 in Asynchronous
43 downloads per month
10KB
200 lines
Utility function to respawn failed long running tasks
Create a Task factory that will be used to respawn a new task, if the running one fails.
impl FutureFactory
to define how the task will be respawned.
impl ErrorHandler
to customize error handling.
Call make_future_respawnable
to put your factory to work, with the error handler.
struct TaskReturnsResult;
impl FutureFactory<Result<(), io::Error>> for TaskReturnsResult {
fn build_future(&mut self) -> Pin<Box<dyn Future<Output = Result<(), io::Error>> + Send>> {
Box::pin(async { panic!("boom") })
}
}
let factory = TaskReturnsResult;
let handler = AlwaysRespawnAndTrace {
duration: std::time::Duration::from_millis(1),
};
let join_handle = tokio::spawn(make_future_respawnable(handler, factory));
sleep(Duration::from_millis(10)).await;
join_handle.abort();
let err = join_handle.await.unwrap_err();
assert!(!err.is_panic(), "{:?}", err);
assert!(err.is_cancelled(), "{:?}", err);
Dependencies
~2–3MB
~47K SLoC