github.com/kaleido-io/firefly@v0.0.0-20210622132723-8b4b6aacb971/pkg/fftypes/nonce.go (about)

     1  // Copyright © 2021 Kaleido, Inc.
     2  //
     3  // SPDX-License-Identifier: Apache-2.0
     4  //
     5  // Licensed under the Apache License, Version 2.0 (the "License");
     6  // you may not use this file except in compliance with the License.
     7  // You may obtain a copy of the License at
     8  //
     9  //     http://www.apache.org/licenses/LICENSE-2.0
    10  //
    11  // Unless required by applicable law or agreed to in writing, software
    12  // distributed under the License is distributed on an "AS IS" BASIS,
    13  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14  // See the License for the specific language governing permissions and
    15  // limitations under the License.
    16  
    17  package fftypes
    18  
    19  // Nonce is this local node's state record for the context of a group+topic combination.
    20  // It records the node's latest allocated sequence number for the context.
    21  // A context is a hash of a GroupID and a topic, concattenated together
    22  type Nonce struct {
    23  	Context *Bytes32 `json:"hash"`
    24  	Nonce   int64    `json:"nonce"`
    25  	Group   *Bytes32 `json:"group,omitempty"`
    26  	Topic   string   `json:"topic"`
    27  }