Function tracing::subscriber::set_default [−][src]
pub fn set_default<S>(subscriber: S) -> DefaultGuard where
S: Subscriber + Send + Sync + 'static,
This is supported on crate feature
std
only.Expand description
Sets the subscriber as the default for the duration of the lifetime of the
returned DefaultGuard
The default subscriber is used when creating a new Span
or
Event
, if no span is currently executing. If a span is currently
executing, new spans or events are dispatched to the subscriber that
tagged that span, instead.