From d8cd6f18b14defbdcfc2b909f4bbc43635ed8694 Mon Sep 17 00:00:00 2001
From: Sergey Popov <loonycyborg@gmail.com>
Date: Thu, 7 Jul 2011 15:10:57 +0000
Subject: [PATCH] Do not try to cancel operations on a socket that isn't open
 yet.

---
 src/network_asio.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/network_asio.hpp b/src/network_asio.hpp
index 641fe6a6faf..4ca249ee313 100644
--- a/src/network_asio.hpp
+++ b/src/network_asio.hpp
@@ -110,7 +110,7 @@ class connection
 	 */
 	void run() { io_service_.run(); }
 
-	void cancel() { socket_.cancel(); }
+	void cancel() { if(socket_.is_open()) { socket_.cancel(); } }
 
 	/** True if connected and no high-level operation is in progress */
 	bool done() const { return done_; }