From 1f119c6807d261be6540b77acf1524f6449d6305 Mon Sep 17 00:00:00 2001
From: aeon <jerry73204@gmail.com>
Date: Thu, 11 Jan 2024 12:59:02 +0800
Subject: [PATCH] Fix potential panic when Stats drops

---
 examples/examples/z_sub_thr.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/examples/examples/z_sub_thr.rs b/examples/examples/z_sub_thr.rs
index 671e50f88b..afdd07ed23 100644
--- a/examples/examples/z_sub_thr.rs
+++ b/examples/examples/z_sub_thr.rs
@@ -58,7 +58,10 @@ impl Stats {
 }
 impl Drop for Stats {
     fn drop(&mut self) {
-        let elapsed = self.global_start.unwrap().elapsed().as_secs_f64();
+        let Some(global_start) = self.global_start else {
+            return;
+        };
+        let elapsed = global_start.elapsed().as_secs_f64();
         let total = self.round_size * self.finished_rounds + self.round_count;
         let throughtput = total as f64 / elapsed;
         println!("Received {total} messages over {elapsed:.2}s: {throughtput}msg/s");