DHT instrumentation

crates/librqbit_core/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "librqbit-core"
-version = "3.0.0"
+version = "3.1.0"
 edition = "2021"
 description = "Important utilities used throughout librqbit useful for working with torrents."
 license = "Apache-2.0"
@@ -17,6 +17,8 @@ sha1-openssl = ["bencode/sha1-openssl"]
 sha1-rust = ["bencode/sha1-rust"]
 
 [dependencies]
+tracing = "0.1.40"
+tokio = "1"
 hex = "0.4"
 anyhow = "1"
 url = "2"

crates/librqbit_core/src/lib.rs

@@ -3,5 +3,6 @@ pub mod id20;
 pub mod lengths;
 pub mod magnet;
 pub mod peer_id;
+pub mod spawn_utils;
 pub mod speed_estimator;
 pub mod torrent_metainfo;

crates/librqbit_core/src/spawn_utils.rs

@@ -0,0 +1,20 @@
+use tracing::{debug, error, trace, Instrument};
+
+pub fn spawn(
+    span: tracing::Span,
+    fut: impl std::future::Future<Output = anyhow::Result<()>> + Send + 'static,
+) -> tokio::task::JoinHandle<()> {
+    let fut = async move {
+        trace!("started");
+        match fut.await {
+            Ok(_) => {
+                debug!("finished");
+            }
+            Err(e) => {
+                error!("finished with error: {:#}", e)
+            }
+        }
+    }
+    .instrument(span);
+    tokio::task::spawn(fut)
+}