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disk_freebsd.go
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disk_freebsd.go
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//go:build freebsd
// +build freebsd
package disk
import (
"bufio"
"bytes"
"context"
"encoding/binary"
"fmt"
"strconv"
"strings"
"github.com/shirou/gopsutil/v3/internal/common"
"golang.org/x/sys/unix"
)
// PartitionsWithContext returns disk partition.
// 'all' argument is ignored, see: https://github.com/giampaolo/psutil/issues/906
func PartitionsWithContext(ctx context.Context, all bool) ([]PartitionStat, error) {
var ret []PartitionStat
// get length
count, err := unix.Getfsstat(nil, unix.MNT_WAIT)
if err != nil {
return ret, err
}
fs := make([]unix.Statfs_t, count)
if _, err = unix.Getfsstat(fs, unix.MNT_WAIT); err != nil {
return ret, err
}
for _, stat := range fs {
opts := []string{"rw"}
if stat.Flags&unix.MNT_RDONLY != 0 {
opts = []string{"ro"}
}
if stat.Flags&unix.MNT_SYNCHRONOUS != 0 {
opts = append(opts, "sync")
}
if stat.Flags&unix.MNT_NOEXEC != 0 {
opts = append(opts, "noexec")
}
if stat.Flags&unix.MNT_NOSUID != 0 {
opts = append(opts, "nosuid")
}
if stat.Flags&unix.MNT_UNION != 0 {
opts = append(opts, "union")
}
if stat.Flags&unix.MNT_ASYNC != 0 {
opts = append(opts, "async")
}
if stat.Flags&unix.MNT_SUIDDIR != 0 {
opts = append(opts, "suiddir")
}
if stat.Flags&unix.MNT_SOFTDEP != 0 {
opts = append(opts, "softdep")
}
if stat.Flags&unix.MNT_NOSYMFOLLOW != 0 {
opts = append(opts, "nosymfollow")
}
if stat.Flags&unix.MNT_GJOURNAL != 0 {
opts = append(opts, "gjournal")
}
if stat.Flags&unix.MNT_MULTILABEL != 0 {
opts = append(opts, "multilabel")
}
if stat.Flags&unix.MNT_ACLS != 0 {
opts = append(opts, "acls")
}
if stat.Flags&unix.MNT_NOATIME != 0 {
opts = append(opts, "noatime")
}
if stat.Flags&unix.MNT_NOCLUSTERR != 0 {
opts = append(opts, "noclusterr")
}
if stat.Flags&unix.MNT_NOCLUSTERW != 0 {
opts = append(opts, "noclusterw")
}
if stat.Flags&unix.MNT_NFS4ACLS != 0 {
opts = append(opts, "nfsv4acls")
}
d := PartitionStat{
Device: common.ByteToString(stat.Mntfromname[:]),
Mountpoint: common.ByteToString(stat.Mntonname[:]),
Fstype: common.ByteToString(stat.Fstypename[:]),
Opts: opts,
}
ret = append(ret, d)
}
return ret, nil
}
func IOCountersWithContext(ctx context.Context, names ...string) (map[string]IOCountersStat, error) {
// statinfo->devinfo->devstat
// /usr/include/devinfo.h
ret := make(map[string]IOCountersStat)
r, err := unix.Sysctl("kern.devstat.all")
if err != nil {
return nil, err
}
buf := []byte(r)
length := len(buf)
count := int(uint64(length) / uint64(sizeOfdevstat))
buf = buf[8:] // devstat.all has version in the head.
// parse buf to devstat
for i := 0; i < count; i++ {
b := buf[i*sizeOfdevstat : i*sizeOfdevstat+sizeOfdevstat]
d, err := parsedevstat(b)
if err != nil {
continue
}
un := strconv.Itoa(int(d.Unit_number))
name := common.IntToString(d.Device_name[:]) + un
if len(names) > 0 && !common.StringsHas(names, name) {
continue
}
ds := IOCountersStat{
ReadCount: d.Operations[devstat_READ],
WriteCount: d.Operations[devstat_WRITE],
ReadBytes: d.Bytes[devstat_READ],
WriteBytes: d.Bytes[devstat_WRITE],
ReadTime: uint64(d.Duration[devstat_READ].Compute() * 1000),
WriteTime: uint64(d.Duration[devstat_WRITE].Compute() * 1000),
IoTime: uint64(d.Busy_time.Compute() * 1000),
Name: name,
}
ds.SerialNumber, _ = SerialNumberWithContext(ctx, name)
ret[name] = ds
}
return ret, nil
}
func (b bintime) Compute() float64 {
BINTIME_SCALE := 5.42101086242752217003726400434970855712890625e-20
return float64(b.Sec) + float64(b.Frac)*BINTIME_SCALE
}
// BT2LD(time) ((long double)(time).sec + (time).frac * BINTIME_SCALE)
func parsedevstat(buf []byte) (devstat, error) {
var ds devstat
br := bytes.NewReader(buf)
// err := binary.Read(br, binary.LittleEndian, &ds)
err := common.Read(br, binary.LittleEndian, &ds)
if err != nil {
return ds, err
}
return ds, nil
}
func getFsType(stat unix.Statfs_t) string {
return common.ByteToString(stat.Fstypename[:])
}
func SerialNumberWithContext(ctx context.Context, name string) (string, error) {
geomOut, err := invoke.CommandWithContext(ctx, "geom", "disk", "list", name)
if err != nil {
return "", fmt.Errorf("exec geom: %w", err)
}
s := bufio.NewScanner(bytes.NewReader(geomOut))
serial := ""
for s.Scan() {
flds := strings.Fields(s.Text())
if len(flds) == 2 && flds[0] == "ident:" {
if flds[1] != "(null)" {
serial = flds[1]
}
break
}
}
if err = s.Err(); err != nil {
return "", err
}
return serial, nil
}
func LabelWithContext(ctx context.Context, name string) (string, error) {
return "", common.ErrNotImplementedError
}