171 lines
4.2 KiB
Go
171 lines
4.2 KiB
Go
// +build freebsd
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package disk
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import (
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"bytes"
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"context"
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"encoding/binary"
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"strconv"
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"golang.org/x/sys/unix"
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"github.com/shirou/gopsutil/v3/internal/common"
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)
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// PartitionsWithContext returns disk partition.
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// 'all' argument is ignored, see: https://github.com/giampaolo/psutil/issues/906
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func PartitionsWithContext(ctx context.Context, all bool) ([]PartitionStat, error) {
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var ret []PartitionStat
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// get length
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count, err := unix.Getfsstat(nil, unix.MNT_WAIT)
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if err != nil {
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return ret, err
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}
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fs := make([]unix.Statfs_t, count)
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if _, err = unix.Getfsstat(fs, unix.MNT_WAIT); err != nil {
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return ret, err
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}
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for _, stat := range fs {
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opts := []string{"rw"}
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if stat.Flags&unix.MNT_RDONLY != 0 {
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opts = []string{"ro"}
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}
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if stat.Flags&unix.MNT_SYNCHRONOUS != 0 {
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opts = append(opts, "sync")
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}
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if stat.Flags&unix.MNT_NOEXEC != 0 {
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opts = append(opts, "noexec")
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}
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if stat.Flags&unix.MNT_NOSUID != 0 {
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opts = append(opts, "nosuid")
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}
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if stat.Flags&unix.MNT_UNION != 0 {
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opts = append(opts, "union")
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}
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if stat.Flags&unix.MNT_ASYNC != 0 {
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opts = append(opts, "async")
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}
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if stat.Flags&unix.MNT_SUIDDIR != 0 {
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opts = append(opts, "suiddir")
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}
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if stat.Flags&unix.MNT_SOFTDEP != 0 {
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opts = append(opts, "softdep")
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}
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if stat.Flags&unix.MNT_NOSYMFOLLOW != 0 {
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opts = append(opts, "nosymfollow")
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}
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if stat.Flags&unix.MNT_GJOURNAL != 0 {
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opts = append(opts, "gjournal")
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}
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if stat.Flags&unix.MNT_MULTILABEL != 0 {
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opts = append(opts, "multilabel")
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}
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if stat.Flags&unix.MNT_ACLS != 0 {
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opts = append(opts, "acls")
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}
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if stat.Flags&unix.MNT_NOATIME != 0 {
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opts = append(opts, "noatime")
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}
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if stat.Flags&unix.MNT_NOCLUSTERR != 0 {
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opts = append(opts, "noclusterr")
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}
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if stat.Flags&unix.MNT_NOCLUSTERW != 0 {
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opts = append(opts, "noclusterw")
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}
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if stat.Flags&unix.MNT_NFS4ACLS != 0 {
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opts = append(opts, "nfsv4acls")
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}
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d := PartitionStat{
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Device: common.ByteToString(stat.Mntfromname[:]),
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Mountpoint: common.ByteToString(stat.Mntonname[:]),
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Fstype: common.ByteToString(stat.Fstypename[:]),
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Opts: opts,
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}
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ret = append(ret, d)
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}
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return ret, nil
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}
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func IOCountersWithContext(ctx context.Context, names ...string) (map[string]IOCountersStat, error) {
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// statinfo->devinfo->devstat
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// /usr/include/devinfo.h
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ret := make(map[string]IOCountersStat)
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r, err := unix.Sysctl("kern.devstat.all")
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if err != nil {
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return nil, err
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}
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buf := []byte(r)
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length := len(buf)
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count := int(uint64(length) / uint64(sizeOfdevstat))
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buf = buf[8:] // devstat.all has version in the head.
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// parse buf to devstat
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for i := 0; i < count; i++ {
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b := buf[i*sizeOfdevstat : i*sizeOfdevstat+sizeOfdevstat]
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d, err := parsedevstat(b)
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if err != nil {
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continue
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}
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un := strconv.Itoa(int(d.Unit_number))
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name := common.IntToString(d.Device_name[:]) + un
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if len(names) > 0 && !common.StringsHas(names, name) {
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continue
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}
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ds := IOCountersStat{
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ReadCount: d.Operations[devstat_READ],
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WriteCount: d.Operations[devstat_WRITE],
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ReadBytes: d.Bytes[devstat_READ],
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WriteBytes: d.Bytes[devstat_WRITE],
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ReadTime: uint64(d.Duration[devstat_READ].Compute() * 1000),
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WriteTime: uint64(d.Duration[devstat_WRITE].Compute() * 1000),
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IoTime: uint64(d.Busy_time.Compute() * 1000),
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Name: name,
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}
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ret[name] = ds
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}
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return ret, nil
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}
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func (b bintime) Compute() float64 {
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BINTIME_SCALE := 5.42101086242752217003726400434970855712890625e-20
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return float64(b.Sec) + float64(b.Frac)*BINTIME_SCALE
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}
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// BT2LD(time) ((long double)(time).sec + (time).frac * BINTIME_SCALE)
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func parsedevstat(buf []byte) (devstat, error) {
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var ds devstat
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br := bytes.NewReader(buf)
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// err := binary.Read(br, binary.LittleEndian, &ds)
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err := common.Read(br, binary.LittleEndian, &ds)
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if err != nil {
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return ds, err
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}
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return ds, nil
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}
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func getFsType(stat unix.Statfs_t) string {
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return common.ByteToString(stat.Fstypename[:])
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}
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func SerialNumberWithContext(ctx context.Context, name string) (string, error) {
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return "", common.ErrNotImplementedError
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}
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func LabelWithContext(ctx context.Context, name string) (string, error) {
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return "", common.ErrNotImplementedError
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}
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