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utils.go
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/
utils.go
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package cgroup
import (
"os"
"strconv"
"strings"
"k8s.io/klog/v2"
)
func readVariablesFromFile(filePath string) (map[string]uint64, error) {
data, err := os.ReadFile(filePath)
if err != nil {
return nil, err
}
res := map[string]uint64{}
for _, line := range strings.Split(string(data), "\n") {
parts := strings.Fields(line)
if len(parts) == 2 {
v, err := strconv.ParseUint(parts[1], 10, 64)
if err != nil {
klog.Warningf(`failed to parse cgroup stat line "%s": %s`, line, err)
continue
}
res[parts[0]] = v
}
}
return res, nil
}
func readIntFromFile(filePath string) (int64, error) {
data, err := os.ReadFile(filePath)
if err != nil {
return 0, err
}
return strconv.ParseInt(strings.TrimSpace(string(data)), 10, 64)
}
func readUintFromFile(filePath string) (uint64, error) {
data, err := os.ReadFile(filePath)
if err != nil {
return 0, err
}
return strconv.ParseUint(strings.TrimSpace(string(data)), 10, 64)
}