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HandlerRegistry

Struct HandlerRegistry 

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pub struct HandlerRegistry { /* private fields */ }
Expand description

处理器注册中心

task_type 注册 TaskHandler 实例及其 TaskConfig。 在应用启动时一次性完成注册,运行时只读访问。

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impl HandlerRegistry

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pub fn new() -> Self

创建空的处理器注册中心

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pub fn register( &mut self, handler: impl TaskHandler + 'static, config: TaskConfig, ) -> &mut Self

注册一个处理器及其配置

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pub fn from_discovered(&mut self) -> &mut Self

从编译期自动发现的 handler 注册(配合 #[task_handler] 宏)

读取 TASK_HANDLERS 分布式切片中的所有条目并注册。 可安全调用多次(后续条目覆盖先前的同名 task_type)。

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pub fn get(&self, task_type: i16) -> Option<(Arc<dyn TaskHandler>, &TaskConfig)>

按 task_type 获取处理器和配置

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pub fn task_types(&self) -> Vec<i16>

获取所有已注册的 task_type

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pub fn get_config(&self, task_type: i16) -> Option<&TaskConfig>

获取配置

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pub fn len(&self) -> usize

已注册的 handler 数量

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pub fn is_empty(&self) -> bool

是否为空

Trait Implementations§

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impl Clone for HandlerRegistry

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fn clone(&self) -> HandlerRegistry

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Default for HandlerRegistry

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fn default() -> Self

Returns the “default value” for a type. Read more

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more