Decode decodes src into dst. src must contain the complete message with the exception of the initial 1 byte message type identifier and 4 byte message length.
(src []byte)
| 56 | // Decode decodes src into dst. src must contain the complete message with the exception of the initial 1 byte message |
| 57 | // type identifier and 4 byte message length. |
| 58 | func (dst *RowDescription) Decode(src []byte) error { |
| 59 | if len(src) < 2 { |
| 60 | return &invalidMessageFormatErr{messageType: "RowDescription"} |
| 61 | } |
| 62 | fieldCount := int(binary.BigEndian.Uint16(src)) |
| 63 | rp := 2 |
| 64 | |
| 65 | dst.Fields = dst.Fields[0:0] |
| 66 | |
| 67 | for range fieldCount { |
| 68 | var fd FieldDescription |
| 69 | |
| 70 | idx := bytes.IndexByte(src[rp:], 0) |
| 71 | if idx < 0 { |
| 72 | return &invalidMessageFormatErr{messageType: "RowDescription"} |
| 73 | } |
| 74 | fd.Name = src[rp : rp+idx] |
| 75 | rp += idx + 1 |
| 76 | |
| 77 | // Since buf.Next() doesn't return an error if we hit the end of the buffer |
| 78 | // check Len ahead of time |
| 79 | if len(src[rp:]) < 18 { |
| 80 | return &invalidMessageFormatErr{messageType: "RowDescription"} |
| 81 | } |
| 82 | |
| 83 | fd.TableOID = binary.BigEndian.Uint32(src[rp:]) |
| 84 | rp += 4 |
| 85 | fd.TableAttributeNumber = binary.BigEndian.Uint16(src[rp:]) |
| 86 | rp += 2 |
| 87 | fd.DataTypeOID = binary.BigEndian.Uint32(src[rp:]) |
| 88 | rp += 4 |
| 89 | fd.DataTypeSize = int16(binary.BigEndian.Uint16(src[rp:])) |
| 90 | rp += 2 |
| 91 | fd.TypeModifier = int32(binary.BigEndian.Uint32(src[rp:])) |
| 92 | rp += 4 |
| 93 | fd.Format = int16(binary.BigEndian.Uint16(src[rp:])) |
| 94 | rp += 2 |
| 95 | |
| 96 | dst.Fields = append(dst.Fields, fd) |
| 97 | } |
| 98 | |
| 99 | return nil |
| 100 | } |
| 101 | |
| 102 | // Encode encodes src into dst. dst will include the 1 byte message type identifier and the 4 byte message length. |
| 103 | func (src *RowDescription) Encode(dst []byte) ([]byte, error) { |