57 lines
1.4 KiB
Go
57 lines
1.4 KiB
Go
// +build freebsd linux darwin
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package disk
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import (
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"context"
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"golang.org/x/sys/unix"
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)
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// Usage returns a file system usage. path is a filessytem path such
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// as "/", not device file path like "/dev/vda1". If you want to use
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// a return value of disk.Partitions, use "Mountpoint" not "Device".
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func Usage(path string) (*UsageStat, error) {
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return UsageWithContext(context.Background(), path)
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}
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func UsageWithContext(ctx context.Context, path string) (*UsageStat, error) {
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stat := unix.Statfs_t{}
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err := unix.Statfs(path, &stat)
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if err != nil {
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return nil, err
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}
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bsize := stat.Bsize
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ret := &UsageStat{
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Path: path,
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Fstype: getFsType(stat),
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Total: (uint64(stat.Blocks) * uint64(bsize)),
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Free: (uint64(stat.Bavail) * uint64(bsize)),
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InodesTotal: (uint64(stat.Files)),
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InodesFree: (uint64(stat.Ffree)),
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}
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// if could not get InodesTotal, return empty
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if ret.InodesTotal < ret.InodesFree {
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return ret, nil
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}
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ret.InodesUsed = (ret.InodesTotal - ret.InodesFree)
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ret.Used = (uint64(stat.Blocks) - uint64(stat.Bfree)) * uint64(bsize)
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if ret.InodesTotal == 0 {
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ret.InodesUsedPercent = 0
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} else {
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ret.InodesUsedPercent = (float64(ret.InodesUsed) / float64(ret.InodesTotal)) * 100.0
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}
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if ret.Total == 0 {
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ret.UsedPercent = 0
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} else {
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ret.UsedPercent = (float64(ret.Used) / float64(ret.Total)) * 100.0
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}
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return ret, nil
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}
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