github.com/pingcap/tiflow@v0.0.0-20240520035814-5bf52d54e205/dm/pkg/binlog/common/stage.go (about)

     1  // Copyright 2019 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 common
    15  
    16  // Stage represents a stage for some binlog related objects, like Writer.Reader.
    17  type Stage int32
    18  
    19  // valid stages for binlog related objects.
    20  const (
    21  	StageNew Stage = iota
    22  	StagePrepared
    23  	StageClosed
    24  )
    25  
    26  // String implements Stringer.String.
    27  func (s Stage) String() string {
    28  	switch s {
    29  	case StageNew:
    30  		return "new"
    31  	case StagePrepared:
    32  		return "prepared"
    33  	case StageClosed:
    34  		return "closed"
    35  	default:
    36  		return "unknown"
    37  	}
    38  }