110 lines
2.1 KiB
Go
110 lines
2.1 KiB
Go
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// +build darwin
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package mem
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import (
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"os/exec"
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"strconv"
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"strings"
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common "github.com/shirou/gopsutil/common"
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)
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func getPageSize() (uint64, error) {
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out, err := exec.Command("pagesize").Output()
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if err != nil {
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return 0, err
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}
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o := strings.TrimSpace(string(out))
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p, err := strconv.ParseUint(o, 10, 64)
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if err != nil {
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return 0, err
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}
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return p, nil
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}
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// VirtualMemory returns VirtualmemoryStat.
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func VirtualMemory() (*VirtualMemoryStat, error) {
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p, err := getPageSize()
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if err != nil {
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return nil, err
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}
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total, err := common.DoSysctrl("hw.memsize")
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if err != nil {
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return nil, err
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}
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free, err := common.DoSysctrl("vm.page_free_count")
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if err != nil {
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return nil, err
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}
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parsed := make([]uint64, 0, 7)
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vv := []string{
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total[0],
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free[0],
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}
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for _, target := range vv {
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t, err := strconv.ParseUint(target, 10, 64)
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if err != nil {
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return nil, err
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}
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parsed = append(parsed, t)
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}
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ret := &VirtualMemoryStat{
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Total: parsed[0],
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Free: parsed[1] * p,
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}
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// TODO: platform independent (worked freebsd?)
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ret.Available = ret.Free + ret.Buffers + ret.Cached
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ret.Used = ret.Total - ret.Free
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ret.UsedPercent = float64(ret.Total-ret.Available) / float64(ret.Total) * 100.0
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return ret, nil
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}
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// SwapMemory returns swapinfo.
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func SwapMemory() (*SwapMemoryStat, error) {
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var ret *SwapMemoryStat
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swapUsage, err := common.DoSysctrl("vm.swapusage")
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if err != nil {
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return ret, err
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}
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total := strings.Replace(swapUsage[2], "M", "", 1)
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used := strings.Replace(swapUsage[5], "M", "", 1)
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free := strings.Replace(swapUsage[8], "M", "", 1)
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total_v, err := strconv.ParseFloat(total, 64)
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if err != nil {
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return nil, err
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}
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used_v, err := strconv.ParseFloat(used, 64)
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if err != nil {
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return nil, err
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}
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free_v, err := strconv.ParseFloat(free, 64)
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if err != nil {
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return nil, err
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}
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u := float64(0)
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if total_v != 0 {
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u = ((total_v - free_v) / total_v) * 100.0
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}
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// vm.swapusage shows "M", multiply 1000
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ret = &SwapMemoryStat{
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Total: uint64(total_v * 1000),
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Used: uint64(used_v * 1000),
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Free: uint64(free_v * 1000),
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UsedPercent: u,
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}
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return ret, nil
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}
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