k8s.io/kubernetes@v1.31.0-alpha.0.0.20240520171757-56147500dadc/pkg/proxy/util/nfacct/nfacct.go (about)

     1  /*
     2  Copyright 2024 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package nfacct
    18  
    19  // Counter represents a nfacct accounting object.
    20  type Counter struct {
    21  	Name    string
    22  	Packets uint64
    23  	Bytes   uint64
    24  }
    25  
    26  // Interface is an injectable interface for running nfacct commands.
    27  type Interface interface {
    28  	// Ensure checks the existence of a nfacct counter with the provided name and creates it if absent.
    29  	Ensure(name string) error
    30  	// Add creates a nfacct counter with the given name, returning an error if it already exists.
    31  	Add(name string) error
    32  	// Get retrieves the nfacct counter with the specified name, returning an error if it doesn't exist.
    33  	Get(name string) (*Counter, error)
    34  	// List retrieves all nfacct counters.
    35  	List() ([]*Counter, error)
    36  }