github.com/pingcap/tiflow@v0.0.0-20240520035814-5bf52d54e205/engine/framework/statusutil/message.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  package statusutil
    15  
    16  import (
    17  	"fmt"
    18  
    19  	frameModel "github.com/pingcap/tiflow/engine/framework/model"
    20  )
    21  
    22  // WorkerStatusMessage contains necessary fileds of a worker status message
    23  type WorkerStatusMessage struct {
    24  	Worker      frameModel.WorkerID      `json:"worker"`
    25  	MasterEpoch frameModel.Epoch         `json:"master-epoch"`
    26  	Status      *frameModel.WorkerStatus `json:"status"`
    27  }
    28  
    29  // WorkerStatusTopic returns the p2p topic for worker status subscription of a
    30  // given master.
    31  func WorkerStatusTopic(masterID frameModel.MasterID) string {
    32  	return fmt.Sprintf("worker-status-%s", masterID)
    33  }