From 6b3ac2a44b1674f156bc369d7e9f2913f10c258c Mon Sep 17 00:00:00 2001
From: Quinn Smith <quinn.smith98@gmail.com>
Date: Sat, 8 Feb 2025 15:12:53 -0800
Subject: [PATCH] Improve host ports exhausted panic message

I've added the hostname to the error message. While debugging an issue I
found this useful. I want to put this back so others can benefit from
this too.
---
 src/host.rs  | 8 +++++++-
 src/world.rs | 1 +
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/host.rs b/src/host.rs
index 2e2b8a3..daba0c8 100644
--- a/src/host.rs
+++ b/src/host.rs
@@ -19,6 +19,9 @@ use tokio::time::{Duration, Instant};
 ///
 /// Both modes may be used simultaneously.
 pub(crate) struct Host {
+    /// Host name.
+    pub(crate) nodename: String,
+
     /// Host ip address.
     pub(crate) addr: IpAddr,
 
@@ -37,6 +40,7 @@ pub(crate) struct Host {
 
 impl Host {
     pub(crate) fn new(
+        nodename: impl Into<String>,
         addr: IpAddr,
         timer: HostTimer,
         ephemeral_ports: RangeInclusive<u16>,
@@ -44,6 +48,7 @@ impl Host {
         udp_capacity: usize,
     ) -> Host {
         Host {
+            nodename: nodename.into(),
             addr,
             udp: Udp::new(udp_capacity),
             tcp: Tcp::new(tcp_capacity),
@@ -73,7 +78,7 @@ impl Host {
             return ret;
         }
 
-        panic!("Host ports exhausted")
+        panic!("Host: '{}' ports exhausted", self.nodename)
     }
 
     /// Receive the `envelope` from the network.
@@ -462,6 +467,7 @@ mod test {
     #[test]
     fn recycle_ports() -> Result {
         let mut host = Host::new(
+            "host",
             std::net::Ipv4Addr::UNSPECIFIED.into(),
             HostTimer::new(Duration::ZERO),
             49152..=49162,
diff --git a/src/world.rs b/src/world.rs
index 7748006..9765528 100644
--- a/src/world.rs
+++ b/src/world.rs
@@ -229,6 +229,7 @@ impl World {
         self.hosts.insert(
             addr,
             Host::new(
+                nodename,
                 addr,
                 timer,
                 config.ephemeral_ports.clone(),