From 7f6f921aa99cff168cb234322711356f83450825 Mon Sep 17 00:00:00 2001
From: Matt Joiner <anacrolix@gmail.com>
Date: Sun, 22 May 2016 22:42:37 +1000
Subject: [PATCH] Comment on tracker.AnnounceRequest.Event

---
 tracker/tracker.go | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/tracker/tracker.go b/tracker/tracker.go
index c57d8052..ed8c42d8 100644
--- a/tracker/tracker.go
+++ b/tracker/tracker.go
@@ -13,11 +13,13 @@ type AnnounceRequest struct {
 	Downloaded int64
 	Left       uint64
 	Uploaded   int64
-	Event      AnnounceEvent
-	IPAddress  int32
-	Key        int32
-	NumWant    int32 // How many peer addresses are desired. -1 for default.
-	Port       uint16
+	// Apparently this is optional. None can be used for announces done at
+	// regular intervals.
+	Event     AnnounceEvent
+	IPAddress int32
+	Key       int32
+	NumWant   int32 // How many peer addresses are desired. -1 for default.
+	Port      uint16
 } // 82 bytes
 
 type AnnounceResponse struct {