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package util
import (
"time"
"unsafe"
"golang.org/x/sys/unix"
)
// For some reason, unix.ClockGettime isn't implemented by x/sys/unix on FreeBSD
func clockGettime(clockid int32, time *unix.Timespec) (err error) {
_, _, e1 := unix.Syscall(unix.SYS_CLOCK_GETTIME, uintptr(clockid), uintptr(unsafe.Pointer(time)), 0)
if e1 != 0 {
return e1
}
return nil
}
func ReadUptime() (time.Duration, error) {
var uptime unix.Timespec
if err := clockGettime(unix.CLOCK_UPTIME, &uptime); err != nil {
return 0, err
}
return time.Duration(unix.TimespecToNsec(uptime)), nil
}
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