mirror of
https://github.com/minio/minio.git
synced 2025-01-13 16:03:21 -05:00
2b4eb87d77
further optimization to ensure that good disks are always used for listing, other than healing we only use disks that are maximally used.
100 lines
3.6 KiB
Go
100 lines
3.6 KiB
Go
// +build windows
|
|
|
|
/*
|
|
* MinIO Cloud Storage, (C) 2015 MinIO, Inc.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
package disk
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
"syscall"
|
|
"unsafe"
|
|
)
|
|
|
|
var (
|
|
kernel32 = syscall.NewLazyDLL("kernel32.dll")
|
|
|
|
// GetDiskFreeSpaceEx - https://msdn.microsoft.com/en-us/library/windows/desktop/aa364937(v=vs.85).aspx
|
|
// Retrieves information about the amount of space that is available on a disk volume,
|
|
// which is the total amount of space, the total amount of free space, and the total
|
|
// amount of free space available to the user that is associated with the calling thread.
|
|
GetDiskFreeSpaceEx = kernel32.NewProc("GetDiskFreeSpaceExW")
|
|
// GetDiskFreeSpace - https://msdn.microsoft.com/en-us/library/windows/desktop/aa364935(v=vs.85).aspx
|
|
// Retrieves information about the specified disk, including the amount of free space on the disk.
|
|
GetDiskFreeSpace = kernel32.NewProc("GetDiskFreeSpaceW")
|
|
)
|
|
|
|
// GetInfo returns total and free bytes available in a directory, e.g. `C:\`.
|
|
// It returns free space available to the user (including quota limitations)
|
|
//
|
|
// https://msdn.microsoft.com/en-us/library/windows/desktop/aa364937(v=vs.85).aspx
|
|
func GetInfo(path string) (info Info, err error) {
|
|
// Stat to know if the path exists.
|
|
if _, err = os.Stat(path); err != nil {
|
|
return Info{}, err
|
|
}
|
|
|
|
lpFreeBytesAvailable := int64(0)
|
|
lpTotalNumberOfBytes := int64(0)
|
|
lpTotalNumberOfFreeBytes := int64(0)
|
|
|
|
// Extract values safely
|
|
// BOOL WINAPI GetDiskFreeSpaceEx(
|
|
// _In_opt_ LPCTSTR lpDirectoryName,
|
|
// _Out_opt_ PULARGE_INTEGER lpFreeBytesAvailable,
|
|
// _Out_opt_ PULARGE_INTEGER lpTotalNumberOfBytes,
|
|
// _Out_opt_ PULARGE_INTEGER lpTotalNumberOfFreeBytes
|
|
// );
|
|
_, _, _ = GetDiskFreeSpaceEx.Call(uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(path))),
|
|
uintptr(unsafe.Pointer(&lpFreeBytesAvailable)),
|
|
uintptr(unsafe.Pointer(&lpTotalNumberOfBytes)),
|
|
uintptr(unsafe.Pointer(&lpTotalNumberOfFreeBytes)))
|
|
info = Info{}
|
|
info.Total = uint64(lpTotalNumberOfBytes)
|
|
info.Free = uint64(lpFreeBytesAvailable)
|
|
info.FSType = getFSType(path)
|
|
|
|
// Return values of GetDiskFreeSpace()
|
|
lpSectorsPerCluster := uint32(0)
|
|
lpBytesPerSector := uint32(0)
|
|
lpNumberOfFreeClusters := uint32(0)
|
|
lpTotalNumberOfClusters := uint32(0)
|
|
|
|
// Extract values safely
|
|
// BOOL WINAPI GetDiskFreeSpace(
|
|
// _In_ LPCTSTR lpRootPathName,
|
|
// _Out_ LPDWORD lpSectorsPerCluster,
|
|
// _Out_ LPDWORD lpBytesPerSector,
|
|
// _Out_ LPDWORD lpNumberOfFreeClusters,
|
|
// _Out_ LPDWORD lpTotalNumberOfClusters
|
|
// );
|
|
_, _, _ = GetDiskFreeSpace.Call(uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(path))),
|
|
uintptr(unsafe.Pointer(&lpSectorsPerCluster)),
|
|
uintptr(unsafe.Pointer(&lpBytesPerSector)),
|
|
uintptr(unsafe.Pointer(&lpNumberOfFreeClusters)),
|
|
uintptr(unsafe.Pointer(&lpTotalNumberOfClusters)))
|
|
|
|
info.Files = uint64(lpTotalNumberOfClusters)
|
|
info.Ffree = uint64(lpNumberOfFreeClusters)
|
|
|
|
if info.Free > info.Total {
|
|
return info, fmt.Errorf("detected free space (%d) > total disk space (%d), fs corruption at (%s). please run 'fsck'", info.Free, info.Total, path)
|
|
}
|
|
info.Used = info.Total - info.Free
|
|
return info, nil
|
|
}
|