refactor: package

pkg/protocol/bt/peer/message/msg_request.go

@@ -0,0 +1,43 @@
+package message
+
+import (
+	"encoding/binary"
+)
+
+// request: <len=0013><id=6><index><begin><length>
+type Request struct {
+	*base
+	Index  uint32
+	Begin  uint32
+	Length uint32
+}
+
+func NewRequest() *Request {
+	return &Request{
+		base: &base{
+			id: IdRequest,
+		},
+	}
+}
+
+func BuildRequest(index uint32, begin uint32, length uint32) *Request {
+	request := NewRequest()
+	request.Index = index
+	request.Begin = begin
+	request.Length = length
+	return request
+}
+
+func (r *Request) Encode() []byte {
+	buf := make([]byte, 12)
+	binary.BigEndian.PutUint32(buf[0:4], r.Index)
+	binary.BigEndian.PutUint32(buf[4:8], r.Begin)
+	binary.BigEndian.PutUint32(buf[8:12], r.Length)
+	return encode(r.base, buf)
+}
+
+func (r *Request) Decode(buf []byte) {
+	r.Length = binary.BigEndian.Uint32(buf[0:4])
+	r.Begin = binary.BigEndian.Uint32(buf[4:8])
+	r.Index = binary.BigEndian.Uint32(buf[8:12])
+}