Struct HotReload 

pub struct HotReload { /* private fields */ }

Poll-based hot-reload watcher.

No platform-specific file-watch APIs are used. Instead, poll() is called periodically (e.g. every second) and compares the mtime of each watched file against the value recorded at load time. Changed files are returned so AssetServer can queue them for reload.

Limitations

• mtime resolution is operating-system dependent (commonly 1 s on FAT32).
• Files inside AssetPack archives are not watched.

Implementations

impl HotReload

pub fn new(poll_interval: Duration, enabled: bool) -> Self

Create a new watcher.

poll_interval — how often to stat files when poll() is called. enabled — pass false in release builds to disable entirely.

pub fn watch( &mut self, path: PathBuf, asset_id: u64, current_mtime: Option<SystemTime>, )

Register a file to be watched for changes.

pub fn unwatch(&mut self, asset_id: u64)

Unwatch a specific asset ID. Removes the file entry if no more IDs use it.

pub fn poll(&mut self) -> Vec<(PathBuf, Vec<u64>)>

Poll all watched files. Returns a list of (path, asset_ids) for every file whose mtime has changed since the last observation.

Returns an empty list if polling is disabled or the interval hasn’t elapsed.

pub fn force_next_poll(&mut self)

Force the next poll() call to check all files regardless of interval.

pub fn set_enabled(&mut self, enabled: bool)

Enable or disable hot-reload at runtime.

pub fn watched_count(&self) -> usize

Number of files currently being watched.

Trait Implementations

impl Debug for HotReload

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.