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// +build linux
package common
import (
"os"
"os/exec"
"strings"
)
func DoSysctrl(mib string) ([]string, error) {
sysctl, err := exec.LookPath("/sbin/sysctl")
if err != nil {
return []string{}, err
}
cmd := exec.Command(sysctl, "-n", mib)
cmd.Env = getSysctrlEnv(os.Environ())
out, err := cmd.Output()
if err != nil {
return []string{}, err
}
v := strings.Replace(string(out), "{ ", "", 1)
v = strings.Replace(string(v), " }", "", 1)
values := strings.Fields(string(v))
return values, nil
}
func NumProcs() (uint64, error) {
f, err := os.Open(HostProc())
if err != nil {
return 0, err
}
defer f.Close()
list, err := f.Readdirnames(-1)
if err != nil {
return 0, err
}
return uint64(len(list)), err
}
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