#[non_exhaustive]pub enum WatchMode {
Native,
Poll {
interval: Duration,
},
}watch only.Expand description
How to detect changes.
The native backend is right almost everywhere and wrong in one important place: inotify and its equivalents do not fire on many network and overlay filesystems — NFS, some Docker bind mounts, some CI runners. The failure is silent, because the watch registers successfully and simply never delivers anything, so there is nothing to detect and fall back from. It has to be chosen deliberately.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
Native
The platform’s notification backend. Efficient, and the default.
Poll
Re-stat the files on an interval. Works anywhere, at the cost of the interval’s worth of latency and a periodic wake-up.
Trait Implementations§
impl Copy for WatchMode
impl Eq for WatchMode
impl StructuralPartialEq for WatchMode
Auto Trait Implementations§
impl Freeze for WatchMode
impl RefUnwindSafe for WatchMode
impl Send for WatchMode
impl Sync for WatchMode
impl Unpin for WatchMode
impl UnsafeUnpin for WatchMode
impl UnwindSafe for WatchMode
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