github.com/intel/goresctrl@v0.5.0/pkg/cgroups/fsi.go (about)

     1  // Copyright 2021 Intel Corporation. All Rights Reserved.
     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  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  // This module defines filesystem interface (fsi) through which
    16  // cgroups package accesses files.
    17  
    18  package cgroups
    19  
    20  import (
    21  	"os"
    22  	"path/filepath"
    23  )
    24  
    25  type fsiIface interface {
    26  	Open(name string) (fileIface, error)
    27  	OpenFile(name string, flag int, perm os.FileMode) (fileIface, error)
    28  	Walk(string, filepath.WalkFunc) error
    29  	Lstat(path string) (os.FileInfo, error)
    30  }
    31  
    32  type fileIface interface {
    33  	Close() error
    34  	Read(p []byte) (n int, err error)
    35  	Write(b []byte) (n int, err error)
    36  }
    37  
    38  // Set the default filesystem interface
    39  var fsi fsiIface = newFsiOS()