コード例 #1
0
ファイル: backend_conn.go プロジェクト: orainxiong/kingshard
func (c *Conn) handleOKPacket(data []byte) (*mysql.Result, error) {
	var n int
	var pos int = 1

	r := new(mysql.Result)

	r.AffectedRows, _, n = mysql.LengthEncodedInt(data[pos:])
	pos += n
	r.InsertId, _, n = mysql.LengthEncodedInt(data[pos:])
	pos += n

	if c.capability&mysql.CLIENT_PROTOCOL_41 > 0 {
		r.Status = binary.LittleEndian.Uint16(data[pos:])
		c.status = r.Status
		pos += 2

		//todo:strict_mode, check warnings as error
		//Warnings := binary.LittleEndian.Uint16(data[pos:])
		//pos += 2
	} else if c.capability&mysql.CLIENT_TRANSACTIONS > 0 {
		r.Status = binary.LittleEndian.Uint16(data[pos:])
		c.status = r.Status
		pos += 2
	}

	//info
	return r, nil
}
コード例 #2
0
ファイル: conn_query.go プロジェクト: velsai/kingshard
func (c *ClientConn) mergeExecResult(rs []*mysql.Result) error {
	r := new(mysql.Result)
	for _, v := range rs {
		r.Status |= v.Status
		r.AffectedRows += v.AffectedRows
		if r.InsertId == 0 {
			r.InsertId = v.InsertId
		} else if r.InsertId > v.InsertId {
			//last insert id is first gen id for multi row inserted
			//see http://dev.mysql.com/doc/refman/5.6/en/information-functions.html#function_last-insert-id
			r.InsertId = v.InsertId
		}
	}

	if r.InsertId > 0 {
		c.lastInsertId = int64(r.InsertId)
	}
	c.affectedRows = int64(r.AffectedRows)

	return c.writeOK(r)
}
コード例 #3
0
ファイル: backend_conn.go プロジェクト: orainxiong/kingshard
func (c *Conn) readResultRows(result *mysql.Result, isBinary bool) (err error) {
	var data []byte

	for {
		data, err = c.readPacket()

		if err != nil {
			return
		}

		// EOF Packet
		if c.isEOFPacket(data) {
			if c.capability&mysql.CLIENT_PROTOCOL_41 > 0 {
				//result.Warnings = binary.LittleEndian.Uint16(data[1:])
				//todo add strict_mode, warning will be treat as error
				result.Status = binary.LittleEndian.Uint16(data[3:])
				c.status = result.Status
			}

			break
		}

		result.RowDatas = append(result.RowDatas, data)
	}

	result.Values = make([][]interface{}, len(result.RowDatas))

	for i := range result.Values {
		result.Values[i], err = result.RowDatas[i].Parse(result.Fields, isBinary)

		if err != nil {
			return err
		}
	}

	return nil
}
コード例 #4
0
ファイル: backend_conn.go プロジェクト: orainxiong/kingshard
func (c *Conn) readResultColumns(result *mysql.Result) (err error) {
	var i int = 0
	var data []byte

	for {
		data, err = c.readPacket()
		if err != nil {
			return
		}

		// EOF Packet
		if c.isEOFPacket(data) {
			if c.capability&mysql.CLIENT_PROTOCOL_41 > 0 {
				//result.Warnings = binary.LittleEndian.Uint16(data[1:])
				//todo add strict_mode, warning will be treat as error
				result.Status = binary.LittleEndian.Uint16(data[3:])
				c.status = result.Status
			}

			if i != len(result.Fields) {
				err = mysql.ErrMalformPacket
			}

			return
		}

		result.Fields[i], err = mysql.FieldData(data).Parse()
		if err != nil {
			return
		}

		result.FieldNames[string(result.Fields[i].Name)] = i

		i++
	}
}