Vendor psutils and remove neko

plugins/system/ps/cpu/cpu_darwin.go

@@ -0,0 +1,149 @@
+// +build darwin
+
+package cpu
+
+import (
+	"fmt"
+	"os/exec"
+	"strconv"
+	"strings"
+
+	common "github.com/shirou/gopsutil/common"
+)
+
+// sys/resource.h
+const (
+	CPUser    = 0
+	CPNice    = 1
+	CPSys     = 2
+	CPIntr    = 3
+	CPIdle    = 4
+	CPUStates = 5
+)
+
+// time.h
+const (
+	ClocksPerSec = 128
+)
+
+func CPUTimes(percpu bool) ([]CPUTimesStat, error) {
+	var ret []CPUTimesStat
+
+	var sysctlCall string
+	var ncpu int
+	if percpu {
+		sysctlCall = "kern.cp_times"
+		ncpu, _ = CPUCounts(true)
+	} else {
+		sysctlCall = "kern.cp_time"
+		ncpu = 1
+	}
+
+	cpuTimes, err := common.DoSysctrl(sysctlCall)
+	if err != nil {
+		return ret, err
+	}
+
+	for i := 0; i < ncpu; i++ {
+		offset := CPUStates * i
+		user, err := strconv.ParseFloat(cpuTimes[CPUser+offset], 64)
+		if err != nil {
+			return ret, err
+		}
+		nice, err := strconv.ParseFloat(cpuTimes[CPNice+offset], 64)
+		if err != nil {
+			return ret, err
+		}
+		sys, err := strconv.ParseFloat(cpuTimes[CPSys+offset], 64)
+		if err != nil {
+			return ret, err
+		}
+		idle, err := strconv.ParseFloat(cpuTimes[CPIdle+offset], 64)
+		if err != nil {
+			return ret, err
+		}
+		intr, err := strconv.ParseFloat(cpuTimes[CPIntr+offset], 64)
+		if err != nil {
+			return ret, err
+		}
+
+		c := CPUTimesStat{
+			User:   float64(user / ClocksPerSec),
+			Nice:   float64(nice / ClocksPerSec),
+			System: float64(sys / ClocksPerSec),
+			Idle:   float64(idle / ClocksPerSec),
+			Irq:    float64(intr / ClocksPerSec),
+		}
+		if !percpu {
+			c.CPU = "cpu-total"
+		} else {
+			c.CPU = fmt.Sprintf("cpu%d", i)
+		}
+
+		ret = append(ret, c)
+	}
+
+	return ret, nil
+}
+
+// Returns only one CPUInfoStat on FreeBSD
+func CPUInfo() ([]CPUInfoStat, error) {
+	var ret []CPUInfoStat
+
+	out, err := exec.Command("/usr/sbin/sysctl", "machdep.cpu").Output()
+	if err != nil {
+		return ret, err
+	}
+
+	c := CPUInfoStat{}
+	for _, line := range strings.Split(string(out), "\n") {
+		values := strings.Fields(line)
+		if len(values) < 1 {
+			continue
+		}
+
+		t, err := strconv.ParseInt(values[1], 10, 64)
+		// err is not checked here because some value is string.
+		if strings.HasPrefix(line, "machdep.cpu.brand_string") {
+			c.ModelName = strings.Join(values[1:], " ")
+		} else if strings.HasPrefix(line, "machdep.cpu.family") {
+			c.Family = values[1]
+		} else if strings.HasPrefix(line, "machdep.cpu.model") {
+			c.Model = values[1]
+		} else if strings.HasPrefix(line, "machdep.cpu.stepping") {
+			if err != nil {
+				return ret, err
+			}
+			c.Stepping = int32(t)
+		} else if strings.HasPrefix(line, "machdep.cpu.features") {
+			for _, v := range values[1:] {
+				c.Flags = append(c.Flags, strings.ToLower(v))
+			}
+		} else if strings.HasPrefix(line, "machdep.cpu.leaf7_features") {
+			for _, v := range values[1:] {
+				c.Flags = append(c.Flags, strings.ToLower(v))
+			}
+		} else if strings.HasPrefix(line, "machdep.cpu.extfeatures") {
+			for _, v := range values[1:] {
+				c.Flags = append(c.Flags, strings.ToLower(v))
+			}
+		} else if strings.HasPrefix(line, "machdep.cpu.core_count") {
+			if err != nil {
+				return ret, err
+			}
+			c.Cores = int32(t)
+		} else if strings.HasPrefix(line, "machdep.cpu.cache.size") {
+			if err != nil {
+				return ret, err
+			}
+			c.CacheSize = int32(t)
+		} else if strings.HasPrefix(line, "machdep.cpu.vendor") {
+			c.VendorID = values[1]
+		}
+
+		// TODO:
+		// c.Mhz = mustParseFloat64(values[1])
+	}
+
+	return append(ret, c), nil
+}