[VOL-5486] Upgrade library versions
Change-Id: I8b4e88699e03f44ee13e467867f45ae3f0a63c4b
Signed-off-by: Abhay Kumar <abhay.kumar@radisys.com>
diff --git a/vendor/github.com/prometheus/procfs/proc_cgroups.go b/vendor/github.com/prometheus/procfs/proc_cgroups.go
new file mode 100644
index 0000000..5dd4938
--- /dev/null
+++ b/vendor/github.com/prometheus/procfs/proc_cgroups.go
@@ -0,0 +1,98 @@
+// Copyright 2021 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 (
+ "bufio"
+ "bytes"
+ "fmt"
+ "strconv"
+ "strings"
+
+ "github.com/prometheus/procfs/internal/util"
+)
+
+// CgroupSummary models one line from /proc/cgroups.
+// This file contains information about the controllers that are compiled into the kernel.
+//
+// Also see http://man7.org/linux/man-pages/man7/cgroups.7.html
+type CgroupSummary struct {
+ // The name of the controller. controller is also known as subsystem.
+ SubsysName string
+ // The unique ID of the cgroup hierarchy on which this controller is mounted.
+ Hierarchy int
+ // The number of control groups in this hierarchy using this controller.
+ Cgroups int
+ // This field contains the value 1 if this controller is enabled, or 0 if it has been disabled
+ Enabled int
+}
+
+// parseCgroupSummary parses each line of the /proc/cgroup file
+// Line format is `subsys_name hierarchy num_cgroups enabled`.
+func parseCgroupSummaryString(CgroupSummaryStr string) (*CgroupSummary, error) {
+ var err error
+
+ fields := strings.Fields(CgroupSummaryStr)
+ // require at least 4 fields
+ if len(fields) < 4 {
+ return nil, fmt.Errorf("%w: 4+ fields required, found %d fields in cgroup info string: %s", ErrFileParse, len(fields), CgroupSummaryStr)
+ }
+
+ CgroupSummary := &CgroupSummary{
+ SubsysName: fields[0],
+ }
+ CgroupSummary.Hierarchy, err = strconv.Atoi(fields[1])
+ if err != nil {
+ return nil, fmt.Errorf("%w: Unable to parse hierarchy ID from %q", ErrFileParse, fields[1])
+ }
+ CgroupSummary.Cgroups, err = strconv.Atoi(fields[2])
+ if err != nil {
+ return nil, fmt.Errorf("%w: Unable to parse Cgroup Num from %q", ErrFileParse, fields[2])
+ }
+ CgroupSummary.Enabled, err = strconv.Atoi(fields[3])
+ if err != nil {
+ return nil, fmt.Errorf("%w: Unable to parse Enabled from %q", ErrFileParse, fields[3])
+ }
+ return CgroupSummary, nil
+}
+
+// parseCgroupSummary reads each line of the /proc/cgroup file.
+func parseCgroupSummary(data []byte) ([]CgroupSummary, error) {
+ var CgroupSummarys []CgroupSummary
+ scanner := bufio.NewScanner(bytes.NewReader(data))
+ for scanner.Scan() {
+ CgroupSummaryString := scanner.Text()
+ // ignore comment lines
+ if strings.HasPrefix(CgroupSummaryString, "#") {
+ continue
+ }
+ CgroupSummary, err := parseCgroupSummaryString(CgroupSummaryString)
+ if err != nil {
+ return nil, err
+ }
+ CgroupSummarys = append(CgroupSummarys, *CgroupSummary)
+ }
+
+ err := scanner.Err()
+ return CgroupSummarys, err
+}
+
+// CgroupSummarys returns information about current /proc/cgroups.
+func (fs FS) CgroupSummarys() ([]CgroupSummary, error) {
+ data, err := util.ReadFileNoStat(fs.proc.Path("cgroups"))
+ if err != nil {
+ return nil, err
+ }
+ return parseCgroupSummary(data)
+}