/
reader.go
71 lines (62 loc) · 1.18 KB
/
reader.go
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package pool
import (
"encoding/binary"
"github.com/go-pg/pg/internal"
)
type Reader struct {
*ElasticBufReader
Columns [][]byte
}
func NewReader(buf *ElasticBufReader) *Reader {
return &Reader{ElasticBufReader: buf}
}
func (rd *Reader) ReadInt16() (int16, error) {
b, err := rd.ReadN(2)
if err != nil {
return 0, err
}
return int16(binary.BigEndian.Uint16(b)), nil
}
func (rd *Reader) ReadInt32() (int32, error) {
b, err := rd.ReadN(4)
if err != nil {
return 0, err
}
return int32(binary.BigEndian.Uint32(b)), nil
}
func (rd *Reader) ReadString() (string, error) {
b, err := rd.ReadSlice(0)
if err != nil {
return "", err
}
return string(b[:len(b)-1]), nil
}
func (rd *Reader) ReadError() (error, error) {
m := make(map[byte]string)
for {
c, err := rd.ReadByte()
if err != nil {
return nil, err
}
if c == 0 {
break
}
s, err := rd.ReadString()
if err != nil {
return nil, err
}
m[c] = s
}
return internal.NewPGError(m), nil
}
func (rd *Reader) ReadMessageType() (byte, int, error) {
c, err := rd.ReadByte()
if err != nil {
return 0, 0, err
}
l, err := rd.ReadInt32()
if err != nil {
return 0, 0, err
}
return c, int(l) - 4, nil
}