text: // Copyright 2018 The Prometheus Authors
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  //
  // http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  
  package procfs
  
  import (
  	"github.com/prometheus/procfs/internal/fs"
  )
  
  // FS represents the pseudo-filesystem sys, which provides an interface to
  // kernel data structures.
  type FS struct {
  	proc fs.FS
  }
  
  // DefaultMountPoint is the common mount point of the proc filesystem.
  const DefaultMountPoint = fs.DefaultProcMountPoint
  
  // NewDefaultFS returns a new proc FS mounted under the default proc mountPoint.
  // It will error if the mount point directory can't be read or is a file.
  func NewDefaultFS() (FS, error) {
  	return NewFS(DefaultMountPoint)
  }
  
  // NewFS returns a new proc FS mounted under the given proc mountPoint. It will error
  // if the mount point directory can't be read or is a file.
  func NewFS(mountPoint string) (FS, error) {
  	fs, err := fs.NewFS(mountPoint)
  	if err != nil {
  		return FS{}, err
  	}
  	return FS{fs}, nil
  }
  