pub struct ConfigStore<T> { /* private fields */ }Expand description
A concurrent, hot-reloadable config store.
Wraps Arc<ArcSwap<T>> for lock-free reads. The get() method
returns a guard that can be dereferenced to &T without blocking
writers.
§Type Parameters
T: The config struct. Must implementDeserializeandClone.
Implementations§
Source§impl<T> ConfigStore<T>
impl<T> ConfigStore<T>
Sourcepub fn load(path: &Path, env_prefix: &str) -> Result<Self, ShikumiError>
pub fn load(path: &Path, env_prefix: &str) -> Result<Self, ShikumiError>
Load config from a file and start watching for changes.
The provider chain is: env vars (with env_prefix) → config file.
Serde defaults on the struct itself serve as the base layer.
§Errors
Returns ShikumiError if the file cannot be parsed.
Sourcepub fn load_and_watch<F>(
path: &Path,
env_prefix: &str,
on_reload: F,
) -> Result<Self, ShikumiError>
pub fn load_and_watch<F>( path: &Path, env_prefix: &str, on_reload: F, ) -> Result<Self, ShikumiError>
Load config and start a file watcher for hot-reload.
On file change, the config is automatically reloaded. Use the
on_reload callback to respond to changes (e.g. trigger a
layout recalculation).
§Errors
Returns ShikumiError if initial load or watcher setup fails.
Sourcepub fn get(&self) -> Guard<Arc<T>>
pub fn get(&self) -> Guard<Arc<T>>
Get a read guard to the current config.
This is lock-free and never blocks. The returned guard can be
dereferenced to &T.
Sourcepub fn reload(&self) -> Result<(), ShikumiError>
pub fn reload(&self) -> Result<(), ShikumiError>
Get a clone of the Arc<ArcSwap<T>> for sharing across threads.
Auto Trait Implementations§
impl<T> Freeze for ConfigStore<T>
impl<T> !RefUnwindSafe for ConfigStore<T>
impl<T> !Send for ConfigStore<T>
impl<T> !Sync for ConfigStore<T>
impl<T> Unpin for ConfigStore<T>
impl<T> UnsafeUnpin for ConfigStore<T>
impl<T> !UnwindSafe for ConfigStore<T>
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