OpenTracing API for Rust.
use rustracing::sampler::AllSampler;
use rustracing::tag::Tag;
use rustracing::Tracer;
use std::thread;
use std::time::Duration;
// Creates a tracer
let (span_tx, span_rx) = crossbeam_channel::bounded(10);
let tracer = Tracer::with_sender(AllSampler, span_tx);
{
// Starts "parent" span
let parent_span = tracer.span("parent").start_with_state(());
thread::sleep(Duration::from_millis(10));
{
// Starts "child" span
let mut child_span = tracer
.span("child_span")
.child_of(&parent_span)
.tag(Tag::new("key", "value"))
.start_with_state(());
child_span.log(|log| {
log.error().message("a log message");
});
} // The "child" span dropped and will be sent to `span_rx`
} // The "parent" span dropped and will be sent to `span_rx`
// Outputs finished spans to the standard output
while let Ok(span) = span_rx.try_recv() {
println!("# SPAN: {:?}", span);
}As an actual usage example of the crate and an implementation of the OpenTracing API, it may be helpful to looking at rustracing_jaeger crate.
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