| // +build darwin |
| |
| package cpu |
| |
| import ( |
| "os/exec" |
| "strconv" |
| "strings" |
| ) |
| |
| // sys/resource.h |
| const ( |
| CPUser = 0 |
| CPNice = 1 |
| CPSys = 2 |
| CPIntr = 3 |
| CPIdle = 4 |
| CPUStates = 5 |
| ) |
| |
| // default value. from time.h |
| var ClocksPerSec = float64(128) |
| |
| func Times(percpu bool) ([]TimesStat, error) { |
| if percpu { |
| return perCPUTimes() |
| } |
| |
| return allCPUTimes() |
| } |
| |
| // Returns only one CPUInfoStat on FreeBSD |
| func Info() ([]InfoStat, error) { |
| var ret []InfoStat |
| sysctl, err := exec.LookPath("/usr/sbin/sysctl") |
| if err != nil { |
| return ret, err |
| } |
| out, err := invoke.Command(sysctl, "machdep.cpu") |
| if err != nil { |
| return ret, err |
| } |
| |
| c := InfoStat{} |
| 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] |
| } |
| } |
| |
| // Use the rated frequency of the CPU. This is a static value and does not |
| // account for low power or Turbo Boost modes. |
| out, err = invoke.Command(sysctl, "hw.cpufrequency") |
| if err != nil { |
| return ret, err |
| } |
| |
| values := strings.Fields(string(out)) |
| mhz, err := strconv.ParseFloat(values[1], 64) |
| if err != nil { |
| return ret, err |
| } |
| c.Mhz = mhz / 1000000.0 |
| |
| return append(ret, c), nil |
| } |