disk: fix various bugs

pull/1530/head
Justin Yang 2 years ago
parent 319f5ea6e5
commit dd0253b0ec

@ -26,13 +26,12 @@ const (
func PartitionsWithContext(ctx context.Context, all bool) ([]PartitionStat, error) {
var ret []PartitionStat
trap := 483 // SYS___getvfsstat90 syscall
flag := uint64(1) // ST_WAIT/MNT_WAIT, see sys/fstypes.h
// get required buffer size
emptyBufSize := 0
r, _, err := unix.Syscall(
uintptr(unsafe.Pointer(&trap)),
483, // SYS___getvfsstat90 syscall
uintptr(unsafe.Pointer(nil)),
uintptr(unsafe.Pointer(&emptyBufSize)),
uintptr(unsafe.Pointer(&flag)),
@ -44,11 +43,11 @@ func PartitionsWithContext(ctx context.Context, all bool) ([]PartitionStat, erro
// calculate the buffer size
bufSize := sizeOfStatvfs * mountedFsCount
buf := make([]Statvfs, bufSize)
buf := make([]Statvfs, mountedFsCount)
// request agian to get desired mount data
_, _, err = unix.Syscall(
uintptr(unsafe.Pointer(&flag)),
483, // SYS___getvfsstat90 syscall
uintptr(unsafe.Pointer(&buf[0])),
uintptr(unsafe.Pointer(&bufSize)),
uintptr(unsafe.Pointer(&flag)),
@ -104,12 +103,16 @@ func IOCountersWithContext(ctx context.Context, names ...string) (map[string]IOC
func UsageWithContext(ctx context.Context, path string) (*UsageStat, error) {
stat := Statvfs{}
trap := 485 // SYS___fstatvfs190, see sys/syscall.h
flag := uint64(1) // ST_WAIT/MNT_WAIT, see sys/fstypes.h
_path, e := unix.BytePtrFromString(path)
if e != nil {
return nil, e
}
_, _, err := unix.Syscall(
uintptr(unsafe.Pointer(&trap)),
uintptr(unsafe.Pointer(&path)),
484, // SYS___fstatvfs190, see sys/syscall.h
uintptr(unsafe.Pointer(_path)),
uintptr(unsafe.Pointer(&stat)),
uintptr(unsafe.Pointer(&flag)),
)

@ -41,5 +41,5 @@ type (
)
type _Ctype_struct___0 struct {
FsidVal [32]int32
FsidVal [2]int32
}

Loading…
Cancel
Save