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// SPDX-License-Identifier: BSD-3-Clause
//go:build netbsd
package cpu
import (
"context"
"fmt"
"runtime"
"unsafe"
"github.com/tklauser/go-sysconf"
"golang.org/x/sys/unix"
"github.com/shirou/gopsutil/v4/internal/common"
)
const (
// sys/sysctl.h
ctlKern = 1 // "high kernel": proc, limits
ctlHw = 6 // CTL_HW
kernCpTime = 51 // KERN_CPTIME
)
var ClocksPerSec = float64(100)
func init() {
clkTck, err := sysconf.Sysconf(sysconf.SC_CLK_TCK)
// ignore errors
if err == nil {
ClocksPerSec = float64(clkTck)
}
}
func Times(percpu bool) ([]TimesStat, error) {
return TimesWithContext(context.Background(), percpu)
}
func TimesWithContext(_ context.Context, percpu bool) (ret []TimesStat, err error) {
if !percpu {
mib := []int32{ctlKern, kernCpTime}
buf, _, err := common.CallSyscall(mib)
if err != nil {
return ret, err
}
times := (*cpuTimes)(unsafe.Pointer(&buf[0]))
stat := TimesStat{
CPU: "cpu-total",
User: float64(times.User),
Nice: float64(times.Nice),
System: float64(times.Sys),
Idle: float64(times.Idle),
Irq: float64(times.Intr),
}
return []TimesStat{stat}, nil
}
ncpu, err := unix.SysctlUint32("hw.ncpu")
if err != nil {
return ret, err
}
var i uint32
for i = 0; i < ncpu; i++ {
mib := []int32{ctlKern, kernCpTime, int32(i)}
buf, _, err := common.CallSyscall(mib)
if err != nil {
return ret, err
}
stats := (*cpuTimes)(unsafe.Pointer(&buf[0]))
ret = append(ret, TimesStat{
CPU: fmt.Sprintf("cpu%d", i),
User: float64(stats.User),
Nice: float64(stats.Nice),
System: float64(stats.Sys),
Idle: float64(stats.Idle),
Irq: float64(stats.Intr),
})
}
return ret, nil
}
// Returns only one (minimal) CPUInfoStat on NetBSD
func Info() ([]InfoStat, error) {
return InfoWithContext(context.Background())
}
func InfoWithContext(_ context.Context) ([]InfoStat, error) {
var ret []InfoStat
var err error
c := InfoStat{}
mhz, err := unix.Sysctl("machdep.dmi.processor-frequency")
if err != nil {
return nil, err
}
_, err = fmt.Sscanf(mhz, "%f", &c.Mhz)
if err != nil {
return nil, err
}
ncpu, err := unix.SysctlUint32("hw.ncpuonline")
if err != nil {
return nil, err
}
c.Cores = int32(ncpu)
if c.ModelName, err = unix.Sysctl("machdep.dmi.processor-version"); err != nil {
return nil, err
}
return append(ret, c), nil
}
func CountsWithContext(_ context.Context, _ bool) (int, error) {
return runtime.NumCPU(), nil
}
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