log the size of buffered packets (#3571)

qlog/event.go

@@ -227,6 +227,7 @@ func (e eventVersionNegotiationReceived) MarshalJSONObject(enc *gojay.Encoder) {
 
 type eventPacketBuffered struct {
 	PacketType logging.PacketType
+	PacketSize protocol.ByteCount
 }
 
 func (e eventPacketBuffered) Category() category { return categoryTransport }
@@ -236,6 +237,7 @@ func (e eventPacketBuffered) IsNil() bool        { return false }
 func (e eventPacketBuffered) MarshalJSONObject(enc *gojay.Encoder) {
 	//nolint:gosimple
 	enc.ObjectKey("header", packetHeaderWithType{PacketType: e.PacketType})
+	enc.ObjectKey("raw", rawInfo{Length: e.PacketSize})
 	enc.StringKey("trigger", "keys_unavailable")
 }
 

qlog/qlog.go

@@ -354,9 +354,12 @@ func (t *connectionTracer) ReceivedVersionNegotiationPacket(dest, src logging.Ar
 	t.mutex.Unlock()
 }
 
-func (t *connectionTracer) BufferedPacket(pt logging.PacketType) {
+func (t *connectionTracer) BufferedPacket(pt logging.PacketType, size protocol.ByteCount) {
 	t.mutex.Lock()
-	t.recordEvent(time.Now(), &eventPacketBuffered{PacketType: pt})
+	t.recordEvent(time.Now(), &eventPacketBuffered{
+		PacketType: pt,
+		PacketSize: size,
+	})
 	t.mutex.Unlock()
 }
 

qlog/qlog_test.go

@@ -610,7 +610,7 @@ var _ = Describe("Tracing", func() {
 			})
 
 			It("records buffered packets", func() {
-				tracer.BufferedPacket(logging.PacketTypeHandshake)
+				tracer.BufferedPacket(logging.PacketTypeHandshake, 1337)
 				entry := exportAndParseSingle()
 				Expect(entry.Time).To(BeTemporally("~", time.Now(), scaleDuration(10*time.Millisecond)))
 				Expect(entry.Name).To(Equal("transport:packet_buffered"))
@@ -619,6 +619,8 @@ var _ = Describe("Tracing", func() {
 				hdr := ev["header"].(map[string]interface{})
 				Expect(hdr).To(HaveLen(1))
 				Expect(hdr).To(HaveKeyWithValue("packet_type", "handshake"))
+				Expect(ev).To(HaveKey("raw"))
+				Expect(ev["raw"].(map[string]interface{})).To(HaveKeyWithValue("length", float64(1337)))
 				Expect(ev).To(HaveKeyWithValue("trigger", "keys_unavailable"))
 			})