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74 lines
1.6 KiB
74 lines
1.6 KiB
// +build darwin |
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package mem |
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import ( |
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"context" |
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"encoding/binary" |
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"strconv" |
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"strings" |
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"github.com/shirou/gopsutil/internal/common" |
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"golang.org/x/sys/unix" |
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) |
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func getHwMemsize() (uint64, error) { |
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totalString, err := unix.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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// unix.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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return SwapMemoryWithContext(context.Background()) |
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} |
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func SwapMemoryWithContext(ctx context.Context) (*SwapMemoryStat, error) { |
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var ret *SwapMemoryStat |
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swapUsage, err := common.DoSysctrlWithContext(ctx, "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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