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shirou_gopsutil/cpu_darwin.go
2014-08-08 23:55:18 +09:00

101 lines
2.5 KiB
Go

// +build darwin
package gopsutil
import (
"os/exec"
"strconv"
"strings"
)
// sys/resource.h
const (
CP_USER = 0
CP_NICE = 1
CP_SYS = 2
CP_INTR = 3
CP_IDLE = 4
CPUSTATES = 5
)
// time.h
const (
CLOCKS_PER_SEC = 128
)
// TODO: get per cpus
func CPUTimes(percpu bool) ([]CPUTimesStat, error) {
var ret []CPUTimesStat
cpuTime, err := doSysctrl("kern.cp_time")
if err != nil {
return ret, err
}
user, _ := strconv.ParseFloat(cpuTime[CP_USER], 32)
nice, _ := strconv.ParseFloat(cpuTime[CP_NICE], 32)
sys, _ := strconv.ParseFloat(cpuTime[CP_SYS], 32)
idle, _ := strconv.ParseFloat(cpuTime[CP_IDLE], 32)
intr, _ := strconv.ParseFloat(cpuTime[CP_INTR], 32)
c := CPUTimesStat{
User: float32(user / CLOCKS_PER_SEC),
Nice: float32(nice / CLOCKS_PER_SEC),
System: float32(sys / CLOCKS_PER_SEC),
Idle: float32(idle / CLOCKS_PER_SEC),
Irq: float32(intr / CLOCKS_PER_SEC), // FIXME: correct?
}
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 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") {
c.Stepping = mustParseInt32(values[1])
} 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") {
c.Cores = mustParseInt32(values[1])
} else if strings.HasPrefix(line, "machdep.cpu.cache.size") {
c.CacheSize = mustParseInt32(values[1])
} else if strings.HasPrefix(line, "machdep.cpu.vendor") {
c.VendorID = values[1]
}
// TODO:
// c.Mhz = mustParseFloat64(values[1])
}
return append(ret, c), nil
}