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gopsutil/disk/disk_netbsd.go

157 lines
3.8 KiB
Go

//go:build openbsd
// +build openbsd
package disk
import (
"bytes"
"context"
"encoding/binary"
"github.com/shirou/gopsutil/v3/internal/common"
"golang.org/x/sys/unix"
)
func PartitionsWithContext(ctx context.Context, all bool) ([]PartitionStat, error) {
var ret []PartitionStat
flag := uint64(1) // ST_WAIT/MNT_WAIT, see sys/fstypes.h
// get required buffer size
r, _, err = unix.Syscall6(
483, // SYS___getvfsstat90 syscall
nil,
0,
uintptr(unsafe.Pointer(&flag)),
)
if err != nil {
return ret, err
}
mountedFsCount := uint64(r)
// calculate the buffer size
bufSize := sizeOfStatvfs * mountedFsCount
buf := make([]Statvfs, bufSize)
// request agian to get desired mount data
_, _, err = unix.Syscall6(
483,
uintptr(unsafe.Pointer(&buf[0])),
uintptr(unsafe.Pointer(&bufSize)),
uintptr(unsafe.Pointer(&flag)),
)
if err != nil {
return ret, err
}
for _, stat := range buf {
d := PartitionStat{
Device: common.ByteToString([]byte(stat.Mntfromname[:])),
Mountpoint: common.ByteToString([]byte(stat.Mntonname[:])),
Fstype: common.ByteToString([]byte(stat.Fstypename[:])),
Opts: opts,
}
ret = append(ret, d)
}
return ret, nil
}
func IOCountersWithContext(ctx context.Context, names ...string) (map[string]IOCountersStat, error) {
ret := make(map[string]IOCountersStat)
r, err := unix.SysctlRaw("hw.diskstats")
if err != nil {
return nil, err
}
buf := []byte(r)
length := len(buf)
count := int(uint64(length) / uint64(sizeOfDiskstats))
// parse buf to Diskstats
for i := 0; i < count; i++ {
b := buf[i*sizeOfDiskstats : i*sizeOfDiskstats+sizeOfDiskstats]
d, err := parseDiskstats(b)
if err != nil {
continue
}
name := common.IntToString(d.Name[:])
if len(names) > 0 && !common.StringsHas(names, name) {
continue
}
ds := IOCountersStat{
ReadCount: d.Rxfer,
WriteCount: d.Wxfer,
ReadBytes: d.Rbytes,
WriteBytes: d.Wbytes,
Name: name,
}
ret[name] = ds
}
return ret, nil
}
// BT2LD(time) ((long double)(time).sec + (time).frac * BINTIME_SCALE)
func parseDiskstats(buf []byte) (Diskstats, error) {
var ds Diskstats
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 UsageWithContext(ctx context.Context, path string) (*UsageStat, error) {
stat := Statvfs{}
flag := uint64(1) // ST_WAIT/MNT_WAIT, see sys/fstypes.h
// request agian to get desired mount data
ret, _, err = unix.Syscall6(
485, // SYS___fstatvfs190, see sys/syscall.h
uintptr(unsafe.Pointer(&path)),
uintptr(unsafe.Pointer(&stat)),
uintptr(unsafe.Pointer(&flag)),
)
if err != nil {
return ret, err
}
bsize := stat.Bsize
ret := &UsageStat{
Path: path,
Fstype: getFsType(stat),
Total: (uint64(stat.Blocks) * uint64(bsize)),
Free: (uint64(stat.Bavail) * uint64(bsize)),
InodesTotal: (uint64(stat.Files)),
InodesFree: (uint64(stat.Ffree)),
}
ret.InodesUsed = (ret.InodesTotal - ret.InodesFree)
ret.InodesUsedPercent = (float64(ret.InodesUsed) / float64(ret.InodesTotal)) * 100.0
ret.Used = (uint64(stat.Blocks) - uint64(stat.Bfree)) * uint64(bsize)
ret.UsedPercent = (float64(ret.Used) / float64(ret.Total)) * 100.0
return ret, nil
}
func getFsType(stat Statvfs) string {
return common.ByteToString(stat.Fstypename[:])
}
func SerialNumberWithContext(ctx context.Context, name string) (string, error) {
return "", common.ErrNotImplementedError
}
func LabelWithContext(ctx context.Context, name string) (string, error) {
return "", common.ErrNotImplementedError
}