github.com/pingcap/tiflow@v0.0.0-20240520035814-5bf52d54e205/cdc/redo/common/redo_meta.go (about)

     1  //  Copyright 2022 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  //go:generate msgp
    15  
    16  package common
    17  
    18  import (
    19  	"github.com/pingcap/tiflow/cdc/model"
    20  )
    21  
    22  // LogMeta is used for store meta info.
    23  type LogMeta struct {
    24  	CheckpointTs uint64 `msg:"checkpointTs"`
    25  	ResolvedTs   uint64 `msg:"resolvedTs"`
    26  }
    27  
    28  // ParseMeta parses meta.
    29  func ParseMeta(metas []*LogMeta, checkpointTs, resolvedTs *model.Ts) {
    30  	*checkpointTs = 0
    31  	*resolvedTs = 0
    32  	for _, meta := range metas {
    33  		if *checkpointTs < meta.CheckpointTs {
    34  			*checkpointTs = meta.CheckpointTs
    35  		}
    36  		if *resolvedTs < meta.ResolvedTs {
    37  			*resolvedTs = meta.ResolvedTs
    38  		}
    39  	}
    40  }