From: Matt Joiner <anacrolix@gmail.com>
Date: Tue, 1 Oct 2019 08:45:36 +0000 (+1000)
Subject: Call rand.Shuffle instead of rand.Perm
X-Git-Tag: v1.8.0~6
X-Git-Url: http://www.git.stargrave.org/?a=commitdiff_plain;h=f8cb7ef6fa10d142ce1bf7d0a4ca218803ccc36f;p=btrtrc.git

Call rand.Shuffle instead of rand.Perm
---

diff --git a/connection.go b/connection.go
index 289d20a8..6664e01a 100644
--- a/connection.go
+++ b/connection.go
@@ -944,8 +944,9 @@ func (c *connection) requestPendingMetadata() {
 			pending = append(pending, index)
 		}
 	}
-	for _, i := range rand.Perm(len(pending)) {
-		c.requestMetadataPiece(pending[i])
+	rand.Shuffle(len(pending), func(i, j int) { pending[i], pending[j] = pending[j], pending[i] })
+	for _, i := range pending {
+		c.requestMetadataPiece(i)
 	}
 }