Struct tracing_subscriber::reload::Handle[][src]

pub struct Handle<L, S> { /* fields omitted */ }

Allows reloading the state of an associated Layer.

Implementations

impl<L, S> Handle<L, S> where
    L: Layer<S> + 'static,
    S: Subscriber
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pub fn reload(&self, new_layer: impl Into<L>) -> Result<(), Error>[src]

Replace the current layer with the provided new_layer.

pub fn modify(&self, f: impl FnOnce(&mut L)) -> Result<(), Error>[src]

Invokes a closure with a mutable reference to the current layer, allowing it to be modified in place.

pub fn clone_current(&self) -> Option<L> where
    L: Clone
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Returns a clone of the layer’s current value if it still exists. Otherwise, if the subscriber has been dropped, returns None.

pub fn with_current<T>(&self, f: impl FnOnce(&L) -> T) -> Result<T, Error>[src]

Invokes a closure with a borrowed reference to the current layer, returning the result (or an error if the subscriber no longer exists).

Trait Implementations

impl<L, S> Clone for Handle<L, S>[src]

impl<L: Debug, S: Debug> Debug for Handle<L, S>[src]

Auto Trait Implementations

impl<L, S> RefUnwindSafe for Handle<L, S>

impl<L, S> Send for Handle<L, S> where
    L: Send + Sync

impl<L, S> Sync for Handle<L, S> where
    L: Send + Sync

impl<L, S> Unpin for Handle<L, S>

impl<L, S> UnwindSafe for Handle<L, S>

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
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impl<T> Borrow<T> for T where
    T: ?Sized
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impl<T> BorrowMut<T> for T where
    T: ?Sized
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impl<T> From<T> for T[src]

impl<T> Instrument for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
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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.

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.

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.