podman

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//go:build !remote
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package libpod
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import (
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	"fmt"
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	"unsafe"
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	"github.com/containers/podman/v5/libpod/define"
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	"golang.org/x/sys/unix"
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)
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func (r *Runtime) setPlatformHostInfo(info *define.HostInfo) error {
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	return nil
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}
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func timeToPercent(time uint64, total uint64) float64 {
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	return 100.0 * float64(time) / float64(total)
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}
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// getCPUUtilization Returns a CPUUsage object that summarizes CPU
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// usage for userspace, system, and idle time.
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func getCPUUtilization() (*define.CPUUsage, error) {
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	buf, err := unix.SysctlRaw("kern.cp_time")
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	if err != nil {
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		return nil, fmt.Errorf("reading sysctl kern.cp_time: %w", err)
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	}
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	var total uint64 = 0
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	var times [unix.CPUSTATES]uint64
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	for i := 0; i < unix.CPUSTATES; i++ {
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		val := *(*uint64)(unsafe.Pointer(&buf[8*i]))
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		times[i] = val
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		total += val
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	}
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	return &define.CPUUsage{
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		UserPercent:   timeToPercent(times[unix.CP_USER], total),
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		SystemPercent: timeToPercent(times[unix.CP_SYS], total),
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		IdlePercent:   timeToPercent(times[unix.CP_IDLE], total),
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	}, nil
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}
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