github.com/pingcap/ticdc@v0.0.0-20220526033649-485a10ef2652/cdc/puller/sorter/serde.go (about)

     1  // Copyright 2020 PingCAP, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package sorter
    15  
    16  import (
    17  	"github.com/pingcap/errors"
    18  	"github.com/pingcap/ticdc/cdc/model"
    19  )
    20  
    21  type msgPackGenSerde struct {
    22  }
    23  
    24  func (m *msgPackGenSerde) marshal(event *model.PolymorphicEvent, bytes []byte) ([]byte, error) {
    25  	bytes = bytes[:0]
    26  	return event.RawKV.MarshalMsg(bytes)
    27  }
    28  
    29  func (m *msgPackGenSerde) unmarshal(event *model.PolymorphicEvent, bytes []byte) ([]byte, error) {
    30  	if event.RawKV == nil {
    31  		event.RawKV = new(model.RawKVEntry)
    32  	}
    33  
    34  	bytes, err := event.RawKV.UnmarshalMsg(bytes)
    35  	if err != nil {
    36  		return nil, errors.Trace(err)
    37  	}
    38  
    39  	event.StartTs = event.RawKV.StartTs
    40  	event.CRTs = event.RawKV.CRTs
    41  
    42  	return bytes, nil
    43  }