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Diffstat (limited to 'vendor/github.com/containerd/cgroups/v1.go')
-rw-r--r--vendor/github.com/containerd/cgroups/v1.go81
1 files changed, 0 insertions, 81 deletions
diff --git a/vendor/github.com/containerd/cgroups/v1.go b/vendor/github.com/containerd/cgroups/v1.go
deleted file mode 100644
index a076d4692..000000000
--- a/vendor/github.com/containerd/cgroups/v1.go
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- Copyright The containerd 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 cgroups
-
-import (
- "bufio"
- "fmt"
- "os"
- "path/filepath"
- "strings"
-)
-
-// V1 returns all the groups in the default cgroups mountpoint in a single hierarchy
-func V1() ([]Subsystem, error) {
- root, err := v1MountPoint()
- if err != nil {
- return nil, err
- }
- subsystems, err := defaults(root)
- if err != nil {
- return nil, err
- }
- var enabled []Subsystem
- for _, s := range pathers(subsystems) {
- // check and remove the default groups that do not exist
- if _, err := os.Lstat(s.Path("/")); err == nil {
- enabled = append(enabled, s)
- }
- }
- return enabled, nil
-}
-
-// v1MountPoint returns the mount point where the cgroup
-// mountpoints are mounted in a single hiearchy
-func v1MountPoint() (string, error) {
- f, err := os.Open("/proc/self/mountinfo")
- if err != nil {
- return "", err
- }
- defer f.Close()
- scanner := bufio.NewScanner(f)
- for scanner.Scan() {
- if err := scanner.Err(); err != nil {
- return "", err
- }
- var (
- text = scanner.Text()
- fields = strings.Split(text, " ")
- // safe as mountinfo encodes mountpoints with spaces as \040.
- index = strings.Index(text, " - ")
- postSeparatorFields = strings.Fields(text[index+3:])
- numPostFields = len(postSeparatorFields)
- )
- // this is an error as we can't detect if the mount is for "cgroup"
- if numPostFields == 0 {
- return "", fmt.Errorf("Found no fields post '-' in %q", text)
- }
- if postSeparatorFields[0] == "cgroup" {
- // check that the mount is properly formated.
- if numPostFields < 3 {
- return "", fmt.Errorf("Error found less than 3 fields post '-' in %q", text)
- }
- return filepath.Dir(fields[4]), nil
- }
- }
- return "", ErrMountPointNotExist
-}