/usr/share/gocode/src/github.com/shirou/gopsutil/mem/mem_darwin_nocgo.go is in golang-github-shirou-gopsutil-dev 2.17.08-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 | // +build darwin
// +build !cgo
package mem
import (
"os/exec"
"strconv"
"strings"
"golang.org/x/sys/unix"
)
// Runs vm_stat and returns Free and inactive pages
func getVMStat(vms *VirtualMemoryStat) error {
vm_stat, err := exec.LookPath("vm_stat")
if err != nil {
return err
}
out, err := invoke.Command(vm_stat)
if err != nil {
return err
}
return parseVMStat(string(out), vms)
}
func parseVMStat(out string, vms *VirtualMemoryStat) error {
var err error
lines := strings.Split(out, "\n")
pagesize := uint64(unix.Getpagesize())
for _, line := range lines {
fields := strings.Split(line, ":")
if len(fields) < 2 {
continue
}
key := strings.TrimSpace(fields[0])
value := strings.Trim(fields[1], " .")
switch key {
case "Pages free":
free, e := strconv.ParseUint(value, 10, 64)
if e != nil {
err = e
}
vms.Free = free * pagesize
case "Pages inactive":
inactive, e := strconv.ParseUint(value, 10, 64)
if e != nil {
err = e
}
vms.Inactive = inactive * pagesize
case "Pages active":
active, e := strconv.ParseUint(value, 10, 64)
if e != nil {
err = e
}
vms.Active = active * pagesize
case "Pages wired down":
wired, e := strconv.ParseUint(value, 10, 64)
if e != nil {
err = e
}
vms.Wired = wired * pagesize
}
}
return err
}
// VirtualMemory returns VirtualmemoryStat.
func VirtualMemory() (*VirtualMemoryStat, error) {
ret := &VirtualMemoryStat{}
total, err := getHwMemsize()
if err != nil {
return nil, err
}
err = getVMStat(ret)
if err != nil {
return nil, err
}
ret.Available = ret.Free + ret.Inactive
ret.Total = total
ret.Used = ret.Total - ret.Available
ret.UsedPercent = 100 * float64(ret.Used) / float64(ret.Total)
return ret, nil
}
|