github.com/pingcap/ticdc@v0.0.0-20220526033649-485a10ef2652/cdc/puller/sorter.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 puller
    15  
    16  import (
    17  	"context"
    18  
    19  	"github.com/pingcap/ticdc/cdc/model"
    20  )
    21  
    22  // EventSorter accepts unsorted PolymorphicEvents, sort them in background and returns
    23  // sorted PolymorphicEvents in Output channel
    24  type EventSorter interface {
    25  	Run(ctx context.Context) error
    26  	AddEntry(ctx context.Context, entry *model.PolymorphicEvent)
    27  	Output() <-chan *model.PolymorphicEvent
    28  }