pub struct JsonStorageLayer;
Expand description
This layer is only concerned with information storage, it does not do any formatting or provide any output.
It’s purpose is to store the fields associated to spans in an easy-to-consume format for downstream layers concerned with emitting a formatted representation of spans or events.
Trait Implementations
Span creation. This is the only occasion we have to store the fields attached to the span given that they might have been borrowed from the surrounding context.
When we enter a span for the first time save the timestamp in its extensions.
When we close a span, register how long it took in milliseconds.
Notifies this layer that a span with the given Id
recorded the given
values
. Read more
Performs late initialization when attaching a Layer
to a
Subscriber
. Read more
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 more
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 more
Notifies this layer that a span with the ID span
recorded that it
follows from the span with the ID follows
. Read more
Notifies this layer that an event has occurred.
Notifies this layer that the span with the given ID was exited.
Notifies this layer that a span ID has been cloned, and that the subscriber returned a different ID. Read more
Composes this layer around the given Layer
, returning a Layered
struct implementing Layer
. Read more
Composes this Layer
with the given Subscriber
, returning a
Layered
struct that implements Subscriber
. Read more
Auto Trait Implementations
impl RefUnwindSafe for JsonStorageLayer
impl Send for JsonStorageLayer
impl Sync for JsonStorageLayer
impl Unpin for JsonStorageLayer
impl UnwindSafe for JsonStorageLayer
Blanket Implementations
Mutably borrows from an owned value. Read more
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more