github.com/pingcap/tiflow@v0.0.0-20240520035814-5bf52d54e205/cdc/scheduler/schedulepb/barrier.go (about)

     1  // Copyright 2023 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 schedulepb
    15  
    16  import "github.com/pingcap/tiflow/cdc/model"
    17  
    18  // BarrierWithMinTs is a barrier with the minimum commitTs of all barriers.
    19  type BarrierWithMinTs struct {
    20  	*Barrier
    21  	// MinTableBarrierTs is the minimum commitTs of all DDL events and is only
    22  	// used to check whether there is a pending DDL job at the checkpointTs when
    23  	// initializing the changefeed.
    24  	MinTableBarrierTs model.Ts
    25  	RedoBarrierTs     model.Ts
    26  }
    27  
    28  // NewBarrierWithMinTs creates a new BarrierWithMinTs.
    29  func NewBarrierWithMinTs(ts model.Ts) *BarrierWithMinTs {
    30  	return &BarrierWithMinTs{
    31  		Barrier: &Barrier{
    32  			GlobalBarrierTs: ts,
    33  		},
    34  		MinTableBarrierTs: ts,
    35  		RedoBarrierTs:     ts,
    36  	}
    37  }