watchexec_supervisor/errors.rs
1//! Error types.
2
3use std::{
4 io::Error,
5 sync::{Arc, OnceLock},
6};
7
8/// Convenience type for a [`std::io::Error`] which can be shared across threads.
9pub type SyncIoError = Arc<OnceLock<Error>>;
10
11/// Make a [`SyncIoError`] from a [`std::io::Error`].
12#[must_use]
13pub fn sync_io_error(err: Error) -> SyncIoError {
14 let lock = OnceLock::new();
15 lock.set(err).expect("unreachable: lock was just created");
16 Arc::new(lock)
17}