pub struct MetricsLayer { /* private fields */ }
Expand description
MetricsLayer
is a tracing_subscriber::Layer
that captures the span
fields and allows them to be later on used as metrics labels.
Implementations§
Source§impl MetricsLayer
impl MetricsLayer
Sourcepub fn new() -> Self
pub fn new() -> Self
Create a new MetricsLayer
.
Trait Implementations§
Source§impl Default for MetricsLayer
impl Default for MetricsLayer
Source§fn default() -> MetricsLayer
fn default() -> MetricsLayer
Returns the “default value” for a type. Read more
Source§impl<S> Layer<S> for MetricsLayerwhere
S: Subscriber + for<'a> LookupSpan<'a>,
impl<S> Layer<S> for MetricsLayerwhere
S: Subscriber + for<'a> LookupSpan<'a>,
Source§fn on_new_span(&self, attrs: &Attributes<'_>, id: &Id, cx: Context<'_, S>)
fn on_new_span(&self, attrs: &Attributes<'_>, id: &Id, cx: Context<'_, S>)
Notifies this layer that a new span was constructed with the given
Attributes
and Id
.Source§fn on_record(&self, id: &Id, values: &Record<'_>, cx: Context<'_, S>)
fn on_record(&self, id: &Id, values: &Record<'_>, cx: Context<'_, S>)
Notifies this layer that a span with the given
Id
recorded the given
values
.Source§fn on_register_dispatch(&self, subscriber: &Dispatch)
fn on_register_dispatch(&self, subscriber: &Dispatch)
Performs late initialization when installing this layer as a
Subscriber
. Read moreSource§fn register_callsite(&self, metadata: &'static Metadata<'static>) -> Interest
fn register_callsite(&self, metadata: &'static Metadata<'static>) -> Interest
Registers a new callsite with this layer, returning whether or not
the layer is interested in being notified about the callsite, similarly
to
Subscriber::register_callsite
. Read moreSource§fn enabled(&self, metadata: &Metadata<'_>, ctx: Context<'_, S>) -> bool
fn enabled(&self, metadata: &Metadata<'_>, ctx: Context<'_, S>) -> bool
Returns
true
if this layer is interested in a span or event with the
given metadata
in the current Context
, similarly to
Subscriber::enabled
. Read moreSource§fn on_follows_from(&self, _span: &Id, _follows: &Id, _ctx: Context<'_, S>)
fn on_follows_from(&self, _span: &Id, _follows: &Id, _ctx: Context<'_, S>)
Notifies this layer that a span with the ID
span
recorded that it
follows from the span with the ID follows
.Source§fn on_event(&self, _event: &Event<'_>, _ctx: Context<'_, S>)
fn on_event(&self, _event: &Event<'_>, _ctx: Context<'_, S>)
Notifies this layer that an event has occurred.
Source§fn on_enter(&self, _id: &Id, _ctx: Context<'_, S>)
fn on_enter(&self, _id: &Id, _ctx: Context<'_, S>)
Notifies this layer that a span with the given ID was entered.
Source§fn on_exit(&self, _id: &Id, _ctx: Context<'_, S>)
fn on_exit(&self, _id: &Id, _ctx: Context<'_, S>)
Notifies this layer that the span with the given ID was exited.
Source§fn on_close(&self, _id: Id, _ctx: Context<'_, S>)
fn on_close(&self, _id: Id, _ctx: Context<'_, S>)
Notifies this layer that the span with the given ID has been closed.
Source§fn on_id_change(&self, _old: &Id, _new: &Id, _ctx: Context<'_, S>)
fn on_id_change(&self, _old: &Id, _new: &Id, _ctx: Context<'_, S>)
Notifies this layer that a span ID has been cloned, and that the
subscriber returned a different ID.
Source§fn and_then<L>(self, layer: L) -> Layered<L, Self, S>
fn and_then<L>(self, layer: L) -> Layered<L, Self, S>
Composes this layer around the given
Layer
, returning a Layered
struct implementing Layer
. Read moreSource§fn with_subscriber(self, inner: S) -> Layered<Self, S>where
Self: Sized,
fn with_subscriber(self, inner: S) -> Layered<Self, S>where
Self: Sized,
Composes this
Layer
with the given Subscriber
, returning a
Layered
struct that implements Subscriber
. Read moreAuto Trait Implementations§
impl Freeze for MetricsLayer
impl RefUnwindSafe for MetricsLayer
impl Send for MetricsLayer
impl Sync for MetricsLayer
impl Unpin for MetricsLayer
impl UnwindSafe for MetricsLayer
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more