use go 1.12

Signed-off-by: hongming <talonwan@yunify.com>

vendor/github.com/lucas-clemente/quic-go/internal/wire/ping_frame.go

@@ -0,0 +1,33 @@
+package wire
+
+import (
+	"bytes"
+
+	"github.com/lucas-clemente/quic-go/internal/protocol"
+)
+
+// A PingFrame is a ping frame
+type PingFrame struct{}
+
+// parsePingFrame parses a Ping frame
+func parsePingFrame(r *bytes.Reader, version protocol.VersionNumber) (*PingFrame, error) {
+	frame := &PingFrame{}
+
+	_, err := r.ReadByte()
+	if err != nil {
+		return nil, err
+	}
+
+	return frame, nil
+}
+
+func (f *PingFrame) Write(b *bytes.Buffer, version protocol.VersionNumber) error {
+	typeByte := uint8(0x07)
+	b.WriteByte(typeByte)
+	return nil
+}
+
+// Length of a written frame
+func (f *PingFrame) Length(version protocol.VersionNumber) protocol.ByteCount {
+	return 1
+}