You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: cpu_dragonfly.go
    path of file: ./repos/kubeedge/vendor/github.com/shirou/gopsutil/cpu
    
    the code of the file until where you have to start completion: package cpu

import (
	"context"
	"fmt"
	"reflect"
	"regexp"
	"runtime"
	"strconv"
	"strings"
	"unsafe"

	"github.com/shirou/gopsutil/internal/common"
	"github.com/tklauser/go-sysconf"
	"golang.org/x/sys/unix"
)

var ClocksPerSec = float64(128)
var cpuMatch = regexp.MustCompile(`^CPU:`)
var originMatch = regexp.MustCompile(`Origin\s*=\s*"(.+)"\s+Id\s*=\s*(.+)\s+Stepping\s*=\s*(.+)`)
var featuresMatch = regexp.MustCompile(`Features=.+<(.+)>`)
var featuresMatch2 = regexp.MustCompile(`Features2=[a-f\dx]+<(.+)>`)
var cpuEnd = regexp.MustCompile(`^Trying to mount root`)
var cpuTimesSize int
var emptyTimes cpuTimes

func init() {
	clkTck, err := sysconf.Sysconf(sysconf.SC_CLK_TCK)
	// ignore errors
	if err == nil {
		ClocksPerSec = float64(clkTck)
	}
}

func timeStat(name string, t *cpuTimes) *TimesStat {
	return &TimesStat{
		User:   float64(t.User) / ClocksPerSec,
		Nice:   float64(t.Nice) / Clocks
    
func parseDmesgBoot(fileName string) (InfoStat, error) {
	c := InfoStat{}
	lines, _ := common.ReadLines(fileName)
	for _, line := range lines {
		if matches := cpuEnd.FindStringSubmatch(line); matches != nil {
			break
		} else if matches := originMatch.FindStringSubmatch(line); matches != nil {
			c.VendorID = matches[1]
			t, err := strconv.ParseInt(matches[2], 10, 32)
			if err != nil {
				return c, fmt.Errorf("unable to parse DragonflyBSD CPU stepping information from %q: %v", line, err)
			}
			c.Stepping = int32(t)
		} else if matches := featuresMatch.FindStringSubmatch(line); matches != nil {
			for _, v := range strings.Split(matches[1], ",") {
				c.Flags = append(c.Flags, strings.ToLower(v))
			}
		} else if matches := featuresMatch2.FindStringSubmatch(line); matches != nil {
			for _, v := range strings.Split(matches[1], ",") {
				c.Flags = append(c.Flags, strings.ToLower(v))
			}
		}
	}

	return c, nil
}