From: Matt Joiner <anacrolix@gmail.com>
Date: Mon, 18 Sep 2017 03:40:36 +0000 (+1000)
Subject: Only run connection.Close once
X-Git-Tag: v1.0.0~381
X-Git-Url: http://www.git.stargrave.org/?a=commitdiff_plain;h=07905164401b96a80b5cfe4731016d1e44f83b60;p=btrtrc.git

Only run connection.Close once

Avoids unnecessary error messages for net.Conn.Close
---

diff --git a/connection.go b/connection.go
index 4655b136..9b102eb8 100644
--- a/connection.go
+++ b/connection.go
@@ -226,7 +226,9 @@ func priorityBitmapHeadAsSlice(pb *prioritybitmap.PriorityBitmap, n int) (ret []
 }
 
 func (cn *connection) Close() {
-	cn.closed.Set()
+	if !cn.closed.Set() {
+		return
+	}
 	cn.discardPieceInclination()
 	cn.pieceRequestOrder.Clear()
 	if cn.conn != nil {