github.com/pingcap/tiflow@v0.0.0-20240520035814-5bf52d54e205/pkg/p2p/model.go (about)

     1  // Copyright 2021 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 p2p
    15  
    16  import (
    17  	proto "github.com/pingcap/tiflow/proto/p2p"
    18  )
    19  
    20  type (
    21  	// NodeID represents the identifier of a sender node.
    22  	// Using IP address is not enough because of possible restarts.
    23  	NodeID = string
    24  	// Topic represents the topic for a peer-to-peer message
    25  	Topic = string
    26  	// Seq represents the serial number of a message for a given topic.
    27  	Seq = int64
    28  	// MessageServerStream is an alias for the protobuf-generated interface for the message service.
    29  	MessageServerStream = proto.CDCPeerToPeer_SendMessageServer
    30  	// MessageClientStream is an alias for the protobuf-generated interface for the message service.
    31  	MessageClientStream = proto.CDCPeerToPeer_SendMessageClient
    32  )
    33  
    34  // MessageEntry is an alias for the protobuf-generated type for a message.
    35  type MessageEntry = *proto.MessageEntry
    36  
    37  // RawMessageEntry is an alias for the protobuf-generated type for a message.
    38  type RawMessageEntry struct {
    39  	topic Topic
    40  	value interface{}
    41  }