From 4a5adad35b468c624c8ecfe9f7a5b6aeba65fbcc Mon Sep 17 00:00:00 2001
From: mawei <mawei@bilibili.com>
Date: Thu, 21 May 2020 17:51:12 +0800
Subject: [PATCH] use struct{} instead of bool in map just as a set

---
 window_update_queue.go | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/window_update_queue.go b/window_update_queue.go
index 607b72d7ef8..91601ebbdab 100644
--- a/window_update_queue.go
+++ b/window_update_queue.go
@@ -11,8 +11,8 @@ import (
 type windowUpdateQueue struct {
 	mutex sync.Mutex
 
-	queue      map[protocol.StreamID]bool // used as a set
-	queuedConn bool                       // connection-level window update
+	queue      map[protocol.StreamID]struct{} // used as a set
+	queuedConn bool                           // connection-level window update
 
 	streamGetter       streamGetter
 	connFlowController flowcontrol.ConnectionFlowController
@@ -25,7 +25,7 @@ func newWindowUpdateQueue(
 	cb func(wire.Frame),
 ) *windowUpdateQueue {
 	return &windowUpdateQueue{
-		queue:              make(map[protocol.StreamID]bool),
+		queue:              make(map[protocol.StreamID]struct{}),
 		streamGetter:       streamGetter,
 		connFlowController: connFC,
 		callback:           cb,
@@ -34,7 +34,7 @@ func newWindowUpdateQueue(
 
 func (q *windowUpdateQueue) AddStream(id protocol.StreamID) {
 	q.mutex.Lock()
-	q.queue[id] = true
+	q.queue[id] = struct{}{}
 	q.mutex.Unlock()
 }