experiment: try out large shutdown timer on transfer

Author: dignifiedquire

iroh/examples/transfer.rs

@@ -422,7 +422,7 @@ async fn fetch(endpoint: Endpoint, remote_addr: EndpointAddr) -> Result<()> {
 
     // We received the last message: close all connections and allow for the close
     // message to be sent.
-    tokio::time::timeout(Duration::from_secs(3), endpoint.close())
+    tokio::time::timeout(Duration::from_secs(30), endpoint.close())
         .await
         .anyerr()?;
 

iroh/src/magicsock.rs

@@ -997,7 +997,9 @@ impl Handle {
         // connection close codes, and close the endpoint properly.
         // If this call is skipped, then connections that protocols close just shortly before the
         // call to `Endpoint::close` will in most cases cause connection time-outs on remote ends.
+        debug!("wait_idle start");
         self.endpoint.wait_idle().await;
+        debug!("wait_idle done");
 
         if self.msock.is_closed() {
             return;