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// 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
isReal bool
}
// 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
}
isReal, err := isRealProc(mountPoint)
if err != nil {
return FS{}, err
}
return FS{fs, isReal}, nil
}