70 lines
1.4 KiB
Go
70 lines
1.4 KiB
Go
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// +build darwin
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package mem
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import (
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"encoding/binary"
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"strconv"
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"strings"
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"syscall"
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"github.com/shirou/gopsutil/internal/common"
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)
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func getHwMemsize() (uint64, error) {
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totalString, err := syscall.Sysctl("hw.memsize")
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if err != nil {
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return 0, err
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}
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// syscall.sysctl() helpfully assumes the result is a null-terminated string and
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// removes the last byte of the result if it's 0 :/
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totalString += "\x00"
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total := uint64(binary.LittleEndian.Uint64([]byte(totalString)))
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return total, 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 1024 * 1024 to convert bytes.
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ret = &SwapMemoryStat{
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Total: uint64(total_v * 1024 * 1024),
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Used: uint64(used_v * 1024 * 1024),
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Free: uint64(free_v * 1024 * 1024),
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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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