From 6dd9a7d83a79c9314698816e38362349a1606f1a Mon Sep 17 00:00:00 2001
From: Arvid Norberg <arvid@libtorrent.org>
Date: Sun, 21 Aug 2011 01:55:38 +0000
Subject: [PATCH] don't post 'operation aborted' UDP errors when changing
 listen port

---
 ChangeLog            | 1 +
 src/session_impl.cpp | 4 +++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 60e2c3c78..51c060a35 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -89,6 +89,7 @@
 	  incoming connection
 	* added more detailed instrumentation of the disk I/O thread
 
+	* don't post 'operation aborted' UDP errors when changing listen port
 	* fix tracker retry logic, where in some configurations the next tier would not be tried
 	* fixed bug in http seeding logic (introduced in 0.15.7)
 	* add support for dont-have extension message
diff --git a/src/session_impl.cpp b/src/session_impl.cpp
index f71d9b600..409cb488e 100644
--- a/src/session_impl.cpp
+++ b/src/session_impl.cpp
@@ -2089,7 +2089,9 @@ namespace aux {
 					m_stat.received_tracker_bytes(len + 28);
 			}
 
-			if (m_alerts.should_post<udp_error_alert>())
+			// don't bubble up operation aborted errors to the user
+			if (e != asio::error::operation_aborted
+				&& m_alerts.should_post<udp_error_alert>())
 				m_alerts.post_alert(udp_error_alert(ep, e));
 			return;
 		}