diff --git a/api.go b/api.go
index 191bf1a..9ba9d28 100644
--- a/api.go
+++ b/api.go
@@ -16,6 +16,7 @@ import (
 	"net"
 	"net/http"
 	"os"
+	"runtime"
 	"strings"
 	"sync"
 	"time"
@@ -73,6 +74,10 @@ func startApiServer(addr string) {
 	//TCP主动,设置连接地址
 	apiServer.router.HandleFunc("/api/v1/gb28181/source/connect", apiServer.connectGBSource)
 	apiServer.router.HandleFunc("/api/v1/gb28181/source/close", apiServer.closeGBSource)
+	apiServer.router.HandleFunc("/api/v1/gb28181/gc/force", func(writer http.ResponseWriter, request *http.Request) {
+		runtime.GC()
+		writer.WriteHeader(http.StatusOK)
+	})
 
 	apiServer.router.HandleFunc("/rtc.html", func(writer http.ResponseWriter, request *http.Request) {
 		http.ServeFile(writer, request, "./rtc.html")
diff --git a/flv/http_flv.go b/flv/http_flv.go
index fe54a08..ce07329 100644
--- a/flv/http_flv.go
+++ b/flv/http_flv.go
@@ -104,8 +104,8 @@ func (t *httpTransStream) AddTrack(stream utils.AVStream) error {
 	} else if utils.AVMediaTypeVideo == stream.Type() {
 		t.muxer.AddVideoTrack(stream.CodecId())
 
-		t.muxer.AddProperty("width", stream.CodecParameters().SPSInfo().Width())
-		t.muxer.AddProperty("height", stream.CodecParameters().SPSInfo().Height())
+		t.muxer.AddProperty("width", stream.CodecParameters().Width())
+		t.muxer.AddProperty("height", stream.CodecParameters().Height())
 	}
 	return nil
 }
@@ -187,7 +187,7 @@ func (t *httpTransStream) WriteHeader() error {
 		if utils.AVMediaTypeAudio == track.Type() {
 			data = track.Extra()
 		} else if utils.AVMediaTypeVideo == track.Type() {
-			data = track.CodecParameters().DecoderConfRecord().ToMP4VC()
+			data = track.CodecParameters().MP4ExtraData()
 		}
 
 		n := t.muxer.Input(t.header[t.headerSize:], track.Type(), len(data), 0, 0, false, true)
diff --git a/gb28181/gb28181_test.go b/gb28181/gb28181_test.go
index 1a72ad2..e435937 100644
--- a/gb28181/gb28181_test.go
+++ b/gb28181/gb28181_test.go
@@ -80,17 +80,15 @@ func connectSource(source string, addr string) {
 	}
 }
 
-func createSource(source, transport, setup string, ssrc uint32) int {
+func createSource(source, setup string, ssrc uint32) (string, uint16) {
 	v := struct {
-		Source    string `json:"source"` //SourceId
-		Transport string `json:"transport,omitempty"`
-		Setup     string `json:"setup"` //active/passive
-		SSRC      uint32 `json:"ssrc,omitempty"`
+		Source string `json:"source"` //SourceId
+		Setup  string `json:"setup"`  //active/passive
+		SSRC   uint32 `json:"ssrc,omitempty"`
 	}{
-		Source:    source,
-		Transport: transport,
-		Setup:     setup,
-		SSRC:      ssrc,
+		Source: source,
+		Setup:  setup,
+		SSRC:   ssrc,
 	}
 
 	marshal, err := json.Marshal(v)
@@ -98,7 +96,7 @@ func createSource(source, transport, setup string, ssrc uint32) int {
 		panic(err)
 	}
 
-	request, err := http.NewRequest("POST", "http://localhost:8080/v1/gb28181/source/create", bytes.NewBuffer(marshal))
+	request, err := http.NewRequest("POST", "http://localhost:8080/api/v1/gb28181/source/create", bytes.NewBuffer(marshal))
 	if err != nil {
 		panic(err)
 	}
@@ -108,46 +106,46 @@ func createSource(source, transport, setup string, ssrc uint32) int {
 	if err != nil {
 		panic(err)
 	}
+	if response.StatusCode != http.StatusOK {
+		panic("")
+	}
 
 	all, err := io.ReadAll(response.Body)
 	if err != nil {
 		panic(err)
 	}
 
-	resposne := &struct {
+	connectInfo := &struct {
 		Code int    `json:"code"`
 		Msg  string `json:"msg"`
 		Data struct {
-			Port int `json:"port"`
-		} `json:"data"`
+			IP   string `json:"ip"`
+			Port uint16 `json:"port,omitempty"`
+		}
 	}{}
 
-	err = json.Unmarshal(all, resposne)
+	err = json.Unmarshal(all, connectInfo)
 	if err != nil {
 		panic(err)
 	}
 
-	if resposne.Code != http.StatusOK {
-		panic("")
-	}
-
-	return resposne.Data.Port
+	return connectInfo.Data.IP, connectInfo.Data.Port
 }
 
+// 使用wireshark直接导出udp流
+// 根据ssrc来查找每个rtp包, rtp不要带扩展字段
 func TestUDPRecv(t *testing.T) {
-	path := "D:\\GOProjects\\avformat\\gb28181_h264.rtp"
-	ssrc := 0xBEBC201
-	ip := "192.168.2.148"
+	path := "D:\\GOProjects\\avformat\\gb28181_h265.rtp"
+	ssrc := 0xBEBC202
 	localAddr := "0.0.0.0:20001"
-	network := "tcp"
-	setup := "passive"
+	setup := "udp" //udp/passive/active
 	id := "hls_mystream"
 
-	port := createSource(id, network, setup, uint32(ssrc))
+	ip, port := createSource(id, setup, uint32(ssrc))
 
-	if network == "udp" {
-		addr, _ := net.ResolveUDPAddr(network, localAddr)
-		remoteAddr, _ := net.ResolveUDPAddr(network, fmt.Sprintf("%s:%d", ip, port))
+	if setup == "udp" {
+		addr, _ := net.ResolveUDPAddr("udp", localAddr)
+		remoteAddr, _ := net.ResolveUDPAddr("udp", fmt.Sprintf("%s:%d", ip, port))
 
 		client := &transport.UDPClient{}
 		err := client.Connect(addr, remoteAddr)
@@ -160,8 +158,8 @@ func TestUDPRecv(t *testing.T) {
 			time.Sleep(1 * time.Millisecond)
 		})
 	} else if !(setup == "active") {
-		addr, _ := net.ResolveTCPAddr(network, localAddr)
-		remoteAddr, _ := net.ResolveTCPAddr(network, fmt.Sprintf("%s:%d", ip, port))
+		addr, _ := net.ResolveTCPAddr("tcp", localAddr)
+		remoteAddr, _ := net.ResolveTCPAddr("tcp", fmt.Sprintf("%s:%d", ip, port))
 
 		client := transport.TCPClient{}
 		err := client.Connect(addr, remoteAddr)
@@ -175,14 +173,16 @@ func TestUDPRecv(t *testing.T) {
 			time.Sleep(1 * time.Millisecond)
 		})
 	} else {
-		addr, _ := net.ResolveTCPAddr(network, localAddr)
+		addr, _ := net.ResolveTCPAddr("tcp", localAddr)
 		server := transport.TCPServer{}
 
-		server.SetHandler2(func(conn net.Conn) {
+		server.SetHandler2(func(conn net.Conn) []byte {
 			readRtp(path, uint32(ssrc), true, func(data []byte) {
 				conn.Write(data)
 				time.Sleep(1 * time.Millisecond)
 			})
+
+			return nil
 		}, nil, nil)
 
 		err := server.Bind(addr)
@@ -190,8 +190,7 @@ func TestUDPRecv(t *testing.T) {
 			panic(err)
 		}
 
-		connectSource(id, "192.168.2.148:20001")
-		//
+		connectSource(id, fmt.Sprintf("%s:%d", ip, port))
 	}
 
 	select {}
diff --git a/gb28181/source.go b/gb28181/source.go
index fa8bb83..1792434 100644
--- a/gb28181/source.go
+++ b/gb28181/source.go
@@ -126,7 +126,7 @@ func (source *BaseGBSource) OnCompletePacket(index int, mediaType utils.AVMediaT
 				return err
 			}
 
-			source.videoStream = utils.NewAVStream(utils.AVMediaTypeVideo, 0, codec, codecData.Record(), codecData)
+			source.videoStream = utils.NewAVStream(utils.AVMediaTypeVideo, 0, codec, codecData.AnnexBExtraData(), codecData)
 			stream_ = source.videoStream
 		}
 
@@ -139,13 +139,13 @@ func (source *BaseGBSource) OnCompletePacket(index int, mediaType utils.AVMediaT
 				return err
 			}
 
-			codecData, err := utils.NewHevcCodecData(vps, sps, pps)
+			codecData, err := utils.NewHEVCCodecData(vps, sps, pps)
 			if err != nil {
 				log.Sugar.Errorf("解析sps pps失败 source:%s data:%s vps:%s sps:%s, pps:%s", source.Id_, hex.EncodeToString(data), hex.EncodeToString(vps), hex.EncodeToString(sps), hex.EncodeToString(pps))
 				return err
 			}
 
-			source.videoStream = utils.NewAVStream(utils.AVMediaTypeVideo, 0, codec, codecData.Record(), codecData)
+			source.videoStream = utils.NewAVStream(utils.AVMediaTypeVideo, 0, codec, codecData.AnnexBExtraData(), codecData)
 			stream_ = source.videoStream
 		}
 
diff --git a/hls/hls_stream.go b/hls/hls_stream.go
index 5bf83d9..beb9921 100644
--- a/hls/hls_stream.go
+++ b/hls/hls_stream.go
@@ -75,7 +75,7 @@ func (t *transStream) AddTrack(stream utils.AVStream) error {
 	}
 
 	if stream.CodecId() == utils.AVCodecIdH264 {
-		data := stream.CodecParameters().DecoderConfRecord().ToAnnexB()
+		data := stream.CodecParameters().AnnexBExtraData()
 		_, err = t.muxer.AddTrack(stream.Type(), stream.CodecId(), data)
 	} else {
 		_, err = t.muxer.AddTrack(stream.Type(), stream.CodecId(), stream.Extra())
@@ -178,6 +178,11 @@ func (t *transStream) createSegment() error {
 func (t *transStream) Close() error {
 	var err error
 
+	if t.muxer != nil {
+		t.muxer.Close()
+		t.muxer = nil
+	}
+
 	if t.context.file != nil {
 		err = t.flushSegment()
 		err = t.context.file.Close()
diff --git a/main.go b/main.go
index 171330c..ec3205e 100644
--- a/main.go
+++ b/main.go
@@ -79,7 +79,7 @@ func NewDefaultAppConfig() stream.AppConfig_ {
 		},
 
 		Hook: stream.HookConfig{
-			Enable:              true,
+			Enable:              false,
 			Timeout:             int64(60 * time.Second),
 			OnPublishUrl:        "http://localhost:9000/api/v1/hook/on_publish",
 			OnPublishDoneUrl:    "http://localhost:9000/api/v1/hook/on_publish_done",
diff --git a/rtc/rtc_stream.go b/rtc/rtc_stream.go
index 55199b1..96f3f1c 100644
--- a/rtc/rtc_stream.go
+++ b/rtc/rtc_stream.go
@@ -31,7 +31,7 @@ func (t *transStream) Input(packet utils.AVPacket) error {
 			}
 
 			if packet.KeyFrame() {
-				extra := t.BaseTransStream.Tracks[packet.Index()].CodecParameters().DecoderConfRecord().ToAnnexB()
+				extra := t.BaseTransStream.Tracks[packet.Index()].CodecParameters().AnnexBExtraData()
 				sink_.input(packet.Index(), extra, 0)
 			}
 
diff --git a/rtmp/rtmp_publisher.go b/rtmp/rtmp_publisher.go
index edab375..2544599 100644
--- a/rtmp/rtmp_publisher.go
+++ b/rtmp/rtmp_publisher.go
@@ -56,3 +56,8 @@ func (p *Publisher) OnPartPacket(index int, mediaType utils.AVMediaType, data []
 
 	buffer.Write(data)
 }
+
+func (p *Publisher) Close() {
+	p.PublishSource.Close()
+	p.stack = nil
+}
diff --git a/rtmp/rtmp_server.go b/rtmp/rtmp_server.go
index 79a7b41..183780f 100644
--- a/rtmp/rtmp_server.go
+++ b/rtmp/rtmp_server.go
@@ -56,10 +56,7 @@ func (s *server) OnPacket(conn net.Conn, data []byte) []byte {
 
 	if err != nil {
 		log.Sugar.Errorf("处理rtmp包失败 err:%s conn:%s", err.Error(), conn.RemoteAddr().String())
-
 		_ = conn.Close()
-		t.Data.(*Session).Close()
-		t.Data = nil
 	}
 
 	if session.isPublisher {
diff --git a/rtmp/rtmp_session.go b/rtmp/rtmp_session.go
index 38c54f4..90a3f44 100644
--- a/rtmp/rtmp_session.go
+++ b/rtmp/rtmp_session.go
@@ -10,10 +10,8 @@ import (
 
 // Session 负责除连接和断开以外的所有RTMP生命周期处理
 type Session struct {
-	//解析rtmp协议栈
-	stack *librtmp.Stack
-	//Publisher/sink, 在publish或play成功后赋值
-	handle      interface{}
+	stack       *librtmp.Stack //rtmp协议栈
+	handle      interface{}    //Publisher/sink, 在publish或play成功后赋值
 	isPublisher bool
 
 	conn          net.Conn
@@ -89,9 +87,12 @@ func (s *Session) Input(conn net.Conn, data []byte) error {
 }
 
 func (s *Session) Close() {
+	//session/conn/stack相关引用, go释放不了...手动赋值为nil
+	s.conn = nil
 	//释放协议栈
 	if s.stack != nil {
 		s.stack.Close()
+		s.stack = nil
 	}
 
 	//还没到publish/play
@@ -105,6 +106,7 @@ func (s *Session) Close() {
 
 		if s.isPublisher {
 			s.handle.(*Publisher).Close()
+			s.receiveBuffer = nil
 		}
 	} else {
 		sink := s.handle.(stream.Sink)
diff --git a/rtmp/rtmp_stream.go b/rtmp/rtmp_stream.go
index 056071a..6ea1398 100644
--- a/rtmp/rtmp_stream.go
+++ b/rtmp/rtmp_stream.go
@@ -158,7 +158,7 @@ func (t *transStream) WriteHeader() error {
 	if videoStream != nil {
 		tmp := n
 		n += t.muxer.WriteVideoData(t.header[n+12:], 0, false, true)
-		extra := videoStream.CodecParameters().DecoderConfRecord().ToMP4VC()
+		extra := videoStream.CodecParameters().MP4ExtraData()
 		copy(t.header[n+12:], extra)
 		n += len(extra)
 
@@ -179,6 +179,7 @@ func (t *transStream) Close() error {
 	if len(segment) > 0 {
 		t.SendPacket(segment)
 	}
+
 	return nil
 }
 
diff --git a/rtsp/rtsp_stream.go b/rtsp/rtsp_stream.go
index 799e0ac..3c91779 100644
--- a/rtsp/rtsp_stream.go
+++ b/rtsp/rtsp_stream.go
@@ -4,7 +4,6 @@ import (
 	"encoding/binary"
 	"fmt"
 	"github.com/yangjiechina/avformat/libavc"
-	"github.com/yangjiechina/avformat/libhevc"
 	"github.com/yangjiechina/avformat/librtp"
 	"github.com/yangjiechina/avformat/librtsp/sdp"
 	"github.com/yangjiechina/avformat/utils"
@@ -109,12 +108,12 @@ func (t *tranStream) Input(packet utils.AVPacket) error {
 			parameters := t.BaseTransStream.Tracks[packet.Index()].CodecParameters()
 
 			if utils.AVCodecIdH265 == packet.CodecId() {
-				bytes := parameters.DecoderConfRecord().(*libhevc.HEVCDecoderConfRecord).VPS
+				bytes := parameters.(*utils.HEVCCodecData).VPS()
 				stream_.muxer.Input(bytes[0], uint32(packet.ConvertPts(stream_.rate)))
 			}
 
-			spsBytes := parameters.DecoderConfRecord().SPSBytes()
-			ppsBytes := parameters.DecoderConfRecord().PPSBytes()
+			spsBytes := parameters.SPS()
+			ppsBytes := parameters.PPS()
 
 			stream_.muxer.Input(spsBytes[0], uint32(packet.ConvertPts(stream_.rate)))
 			stream_.muxer.Input(ppsBytes[0], uint32(packet.ConvertPts(stream_.rate)))
diff --git a/stream/gop_buffer.go b/stream/gop_buffer.go
index 514beee..ffb41ed 100644
--- a/stream/gop_buffer.go
+++ b/stream/gop_buffer.go
@@ -18,6 +18,8 @@ type GOPBuffer interface {
 	Size() int
 
 	Clear()
+
+	Close()
 }
 
 type streamBuffer struct {
@@ -107,3 +109,7 @@ func (s *streamBuffer) Size() int {
 func (s *streamBuffer) Clear() {
 	s.discard()
 }
+
+func (s *streamBuffer) Close() {
+	s.discardHandler = nil
+}
diff --git a/stream/memory_pool.go b/stream/memory_pool.go
index e86ca19..057007c 100644
--- a/stream/memory_pool.go
+++ b/stream/memory_pool.go
@@ -25,41 +25,36 @@ type MemoryPool interface {
 	// Fetch 获取当前内存块，必须先调用Mark函数
 	Fetch() []byte
 
-	// Reset 清空本次写入的数据，本次缓存的数据无效
+	// Reset 清空本次流程写入的还未生效内存块
 	Reset()
 
-	// Reserve 预留指定大小的内存空间
+	// Reserve 预留指定大小的内存块
 	//主要是为了和实现和Write相似功能，但是不拷贝, 所以使用流程和Write一样.
 	Reserve(size int)
 
-	// FreeHead 从头部释放一块内存
+	// FreeHead 释放头部一块内存
 	FreeHead()
 
-	// FreeTail 从尾部释放一块内存
+	// FreeTail 释放尾部一块内存
 	FreeTail()
 
+	// Data 返回头尾已使用的内存块
 	Data() ([]byte, []byte)
 
 	// Clear 清空所有内存块
 	Clear()
-
-	Empty() bool
-
-	Capacity() int
-
-	Size() int
 }
 
 type memoryPool struct {
 	data     []byte
 	capacity int //实际的可用容量，当尾部剩余内存不足以此次Write, 并且头部有足够的空闲内存, 则尾部剩余的内存将不可用.
-	head     int
-	tail     int
+	head     int //起始索引
+	tail     int //末尾索引, 当形成回环时, 会小于起始索引
 
-	markIndex         int //保存开始索引
+	markIndex         int //分配内存块的起始索引, 一定小于末尾索引, data[markIndex:tail]此次分配的内存块
 	marked            bool
 	blockQueue        *Queue
-	discardBlockCount int
+	discardBlockCount int  //扩容时, 丢弃之前的内存块数量
 	recopy            bool //扩容时，是否拷贝旧数据. 缓存AVPacket时, 内存已经被Data引用，所以不需要再拷贝旧数据. 用作合并写缓存时, 流还没有发送使用, 需要拷贝旧数据.
 	isFull            func(int) bool
 }
@@ -144,11 +139,19 @@ func (m *memoryPool) Reset() {
 	m.tail = m.markIndex
 }
 
-func (m *memoryPool) FreeHead() {
+func (m *memoryPool) freeOldBlocks() bool {
 	utils.Assert(!m.marked)
 
 	if m.discardBlockCount > 0 {
 		m.discardBlockCount--
+		return true
+	}
+
+	return false
+}
+
+func (m *memoryPool) FreeHead() {
+	if m.freeOldBlocks() {
 		return
 	}
 
@@ -156,35 +159,29 @@ func (m *memoryPool) FreeHead() {
 	size := m.blockQueue.Pop().(int)
 	m.head += size
 
-	if m.head == m.tail {
-		m.head = 0
-		m.tail = 0
-	} else if m.head >= m.capacity {
-		m.head = 0
-	}
-
 	if m.blockQueue.IsEmpty() {
-		m.markIndex = 0
+		m.Clear()
+	} else if m.head >= m.capacity {
+		//清空末尾, 从头开始
+		m.head = 0
 	}
 }
 
 func (m *memoryPool) FreeTail() {
-	utils.Assert(!m.marked)
-
-	if m.discardBlockCount > 0 {
-		m.discardBlockCount--
+	if m.freeOldBlocks() {
 		return
 	}
 
 	utils.Assert(!m.blockQueue.IsEmpty())
 	size := m.blockQueue.PopBack().(int)
 	m.tail -= size
-	if m.tail == 0 && !m.blockQueue.IsEmpty() {
-		m.tail = m.capacity
-	}
 
 	if m.blockQueue.IsEmpty() {
-		m.markIndex = 0
+		m.Clear()
+	} else if m.tail == 0 {
+		//回环回到线性
+		m.tail = m.capacity
+		m.capacity = cap(m.data)
 	}
 }
 
@@ -207,17 +204,3 @@ func (m *memoryPool) Clear() {
 	m.blockQueue.Clear()
 	m.discardBlockCount = 0
 }
-
-func (m *memoryPool) Empty() bool {
-	utils.Assert(!m.marked)
-	return m.blockQueue.Size() < 1
-}
-
-func (m *memoryPool) Capacity() int {
-	return m.capacity
-}
-
-func (m *memoryPool) Size() int {
-	head, tail := m.Data()
-	return len(head) + len(tail)
-}
diff --git a/stream/memorypool_direct.go b/stream/memorypool_direct.go
index bf1edcc..4e84ce7 100644
--- a/stream/memorypool_direct.go
+++ b/stream/memorypool_direct.go
@@ -14,7 +14,7 @@ func NewDirectMemoryPool(capacity int) MemoryPool {
 	pool.memoryPool = &memoryPool{
 		data:       make([]byte, capacity),
 		capacity:   capacity,
-		blockQueue: NewQueue(capacity),
+		blockQueue: NewQueue(2048),
 		recopy:     true,
 		isFull:     pool.isFull,
 	}
diff --git a/stream/memorypool_rb.go b/stream/memorypool_rb.go
index f5dc158..a221ef3 100644
--- a/stream/memorypool_rb.go
+++ b/stream/memorypool_rb.go
@@ -11,6 +11,16 @@ func (m *rbMemoryPool) isFull(size int) bool {
 		//头部有大小合适的内存空间
 	} else if !over && m.capacity-m.tail >= size {
 		//尾部有大小合适的内存空间
+	} else if !over && m.head > size {
+		//形成回环
+
+		//修改有效内存容量大小
+		m.capacity = m.markIndex
+		//拷贝之前的数据
+		incompleteBlockSize := m.tail - m.markIndex
+		copy(m.data, m.data[m.markIndex:m.tail])
+		m.markIndex = 0
+		m.tail = incompleteBlockSize
 	} else {
 		return true
 	}
@@ -23,7 +33,7 @@ func NewRbMemoryPool(capacity int) MemoryPool {
 	pool.memoryPool = &memoryPool{
 		data:       make([]byte, capacity),
 		capacity:   capacity,
-		blockQueue: NewQueue(capacity),
+		blockQueue: NewQueue(2048),
 		recopy:     false,
 		isFull:     pool.isFull,
 	}
diff --git a/stream/sink.go b/stream/sink.go
index 8c57ba8..420654a 100644
--- a/stream/sink.go
+++ b/stream/sink.go
@@ -213,6 +213,7 @@ func (s *BaseSink) Close() {
 		go HookPlayDoneEvent(s)
 	}
 }
+
 func (s *BaseSink) PrintInfo() string {
 	return fmt.Sprintf("%s-%v source:%s", s.Protocol().ToString(), s.Id_, s.SourceId_)
 }
@@ -228,6 +229,7 @@ func (s *BaseSink) RemoteAddr() string {
 func (s *BaseSink) UrlValues() url.Values {
 	return s.urlValues
 }
+
 func (s *BaseSink) SetUrlValues(values url.Values) {
 	s.urlValues = values
 }
diff --git a/stream/source.go b/stream/source.go
index 3641ff7..2e63f9b 100644
--- a/stream/source.go
+++ b/stream/source.go
@@ -441,6 +441,12 @@ func (s *PublishSource) doClose() {
 
 	if s.Conn != nil {
 		s.Conn.Close()
+		s.Conn = nil
+	}
+
+	if s.TransDeMuxer != nil {
+		s.TransDeMuxer.Close()
+		s.TransDeMuxer = nil
 	}
 
 	//清空未写完的buffer
@@ -453,13 +459,18 @@ func (s *PublishSource) doClose() {
 	//释放GOP缓存
 	if s.gopBuffer != nil {
 		s.gopBuffer.Clear()
+		s.gopBuffer.Close()
+		s.gopBuffer = nil
 	}
+
 	if s.probeTimer != nil {
 		s.probeTimer.Stop()
 	}
+
 	if s.receiveDataTimer != nil {
 		s.receiveDataTimer.Stop()
 	}
+
 	if s.idleTimer != nil {
 		s.idleTimer.Stop()
 	}