Function opentelemetry::trace::get_active_span
source · pub fn get_active_span<F, T>(f: F) -> T
Expand description
Executes a closure with a reference to this thread’s current span.
§Examples
use opentelemetry::{global, trace::{Span, Tracer}, KeyValue};
use opentelemetry::trace::get_active_span;
fn my_function() {
// start an active span in one function
global::tracer("my-component").in_span("span-name", |_cx| {
// anything happening in functions we call can still access the active span...
my_other_function();
})
}
fn my_other_function() {
// call methods on the current span from
get_active_span(|span| {
span.add_event("An event!", vec![KeyValue::new("happened", true)]);
})
}