Decode decode the network bytes slice to packet.Packet(s) TODO(Warning): shared slice
(data []byte)
| 69 | // Decode decode the network bytes slice to packet.Packet(s) |
| 70 | // TODO(Warning): shared slice |
| 71 | func (c *Decoder) Decode(data []byte) ([]*packet.Packet, error) { |
| 72 | c.buf.Write(data) |
| 73 | |
| 74 | var ( |
| 75 | packets []*packet.Packet |
| 76 | err error |
| 77 | ) |
| 78 | // check length |
| 79 | if c.buf.Len() < HeadLength { |
| 80 | return nil, err |
| 81 | } |
| 82 | |
| 83 | // first time |
| 84 | if c.size < 0 { |
| 85 | if err = c.forward(); err != nil { |
| 86 | return nil, err |
| 87 | } |
| 88 | } |
| 89 | |
| 90 | for c.size <= c.buf.Len() { |
| 91 | p := &packet.Packet{Type: packet.Type(c.typ), Length: c.size, Data: c.buf.Next(c.size)} |
| 92 | packets = append(packets, p) |
| 93 | |
| 94 | // more packet |
| 95 | if c.buf.Len() < HeadLength { |
| 96 | c.size = -1 |
| 97 | break |
| 98 | } |
| 99 | |
| 100 | if err = c.forward(); err != nil { |
| 101 | return packets, err |
| 102 | } |
| 103 | } |
| 104 | |
| 105 | return packets, nil |
| 106 | } |
| 107 | |
| 108 | // Encode create a packet.Packet from the raw bytes slice and then encode to network bytes slice |
| 109 | // Protocol refs: https://github.com/NetEase/pomelo/wiki/Communication-Protocol |