Trait witchcraft_metrics::Gauge

pub trait Gauge: 'static + Sync + Send {
    pub fn value(&self) -> Value;
}

A generalized metric which computes an arbitrary value.

It is implemented for all closures returning serializable types.

Required methods

pub fn value(&self) -> Value

Returns the serialized value.

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Implementations

impl dyn Gauge

pub fn is<T>(&self) -> bool where
    T: Gauge, 

Returns true if the gauge value's type is T.

pub fn downcast_ref<T>(&self) -> Option<&T> where
    T: Gauge, 

Attempts to downcast the gauge's value to the type T if it has that type.

pub fn downcast_arc<T>(self: Arc<Self>) -> Result<Arc<T>, Arc<Self>> where
    T: Gauge, 

Attempts to downcast the gauge's value to the type T if it has that type.

Implementors

impl<F, R> Gauge for F where
    F: Fn() -> R + 'static + Sync + Send,
    R: Serialize, 

pub fn value(&self) -> Value

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