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95 lines
1.8 KiB
Go
95 lines
1.8 KiB
Go
package packet
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import (
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"encoding/hex"
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"fmt"
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)
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// Type 数据帧类型，如：握手，心跳，数据 等
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type Type byte
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const (
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// Unknown 未知包类型，无意义
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Unknown Type = iota
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// Handshake 握手数据(服务端主动发起)
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Handshake = 0x01
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// HandshakeAck 握手回复(客户端回复)
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HandshakeAck = 0x02
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// Heartbeat 心跳(服务端发起)
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Heartbeat = 0x03
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// Data 数据传输
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Data = 0x04
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// Kick 服务端主动断开连接
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Kick = 0x05
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)
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type MsgType byte
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// Message types
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const (
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Request MsgType = 0x00
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Notify = 0x01
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Response = 0x02
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Push = 0x03
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)
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var msgTypes = map[MsgType]string{
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Request: "Request",
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Notify: "Notify",
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Response: "Response",
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Push: "Push",
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}
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func (t MsgType) String() string {
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return msgTypes[t]
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}
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type (
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Header struct {
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PacketType Type // 数据帧 类型
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Length uint32 // 数据长度
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MessageHeader // 消息头
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}
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MessageHeader struct {
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MsgType MsgType // message type (flag)
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ID uint64 // unique id, zero while notify mode
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Route string // route for locating service
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compressed bool // if message compressed
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}
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Packet struct {
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Header
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Data []byte // 原始数据
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}
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)
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func newPacket(typ Type) *Packet {
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return &Packet{
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Header: Header{
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PacketType: typ,
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MessageHeader: MessageHeader{},
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},
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}
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}
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func (p *Packet) GetHeader() interface{} {
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return p.Header
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}
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func (p *Packet) GetLen() uint32 {
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return p.Length
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}
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func (p *Packet) GetBody() []byte {
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return p.Data
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}
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func (p *Packet) String() string {
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return fmt.Sprintf("Packet[Type: %d, Len: %d] Message[Type: %s, ID: %d, Route: %s, Compressed: %v] BodyStr: [%s], BodyHex: [%s]",
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p.PacketType, p.Length, p.MsgType, p.ID, p.Route, p.compressed, string(p.Data), hex.EncodeToString(p.Data))
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}
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