Function parseMount

mountstats.go:324–353

parseMount parses an entry in /proc/[pid]/mountstats in the format: device [device] mounted on [mount] with fstype [type]

(ss []string)

//
//	device [device] mounted on [mount] with fstype [type]
func parseMount(ss []string) (*Mount, error) {
	if len(ss) < deviceEntryLen {
		return nil, fmt.Errorf("%w: Invalid device %q", ErrFileParse, ss)
	}

	// Check for specific words appearing at specific indices to ensure
	// the format is consistent with what we expect
	format := []struct {
		i int
		s string
	}{
		{i: 0, s: "device"},
		{i: 2, s: "mounted"},
		{i: 3, s: "on"},
		{i: 5, s: "with"},
		{i: 6, s: "fstype"},
	}

	for _, f := range format {
		if ss[f.i] != f.s {
			return nil, fmt.Errorf("%w: Invalid device %q", ErrFileParse, ss)
		}
	}

	return &Mount{
		Device: ss[1],
		Mount:  ss[4],
		Type:   ss[7],
	}, nil
}

// parseMountStatsNFS parses a MountStatsNFS by scanning additional information
// related to NFS statistics.