Merge pull request #920 from harshavardhana/free-disk-space
Add disk package
This commit is contained in:
commit
4b3961e1df
5 changed files with 254 additions and 0 deletions
41
pkg/disk/disk_test.go
Normal file
41
pkg/disk/disk_test.go
Normal file
|
@ -0,0 +1,41 @@
|
|||
/*
|
||||
* 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_test
|
||||
|
||||
import (
|
||||
"io/ioutil"
|
||||
"os"
|
||||
"testing"
|
||||
|
||||
"github.com/minio/minio/pkg/disk"
|
||||
|
||||
. "gopkg.in/check.v1"
|
||||
)
|
||||
|
||||
func Test(t *testing.T) { TestingT(t) }
|
||||
|
||||
type MySuite struct{}
|
||||
|
||||
var _ = Suite(&MySuite{})
|
||||
|
||||
func (s *MySuite) TestFree(c *C) {
|
||||
path, err := ioutil.TempDir(os.TempDir(), "minio-")
|
||||
c.Check(err, IsNil)
|
||||
|
||||
_, _, err = disk.Stat(path)
|
||||
c.Check(err, IsNil)
|
||||
}
|
35
pkg/disk/stat_nix.go
Normal file
35
pkg/disk/stat_nix.go
Normal file
|
@ -0,0 +1,35 @@
|
|||
// +build darwin dragonfly freebsd linux netbsd openbsd
|
||||
|
||||
/*
|
||||
* 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 (
|
||||
"syscall"
|
||||
)
|
||||
|
||||
// Stat returns total and free bytes available in a directory, e.g. `/`.
|
||||
func Stat(path string) (total, free int64, err error) {
|
||||
s := syscall.Statfs_t{}
|
||||
err = syscall.Statfs(path, &s)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
total = int64(s.Bsize) * int64(s.Blocks)
|
||||
free = int64(s.Bsize) * int64(s.Bfree)
|
||||
return
|
||||
}
|
69
pkg/disk/stat_windows.go
Normal file
69
pkg/disk/stat_windows.go
Normal file
|
@ -0,0 +1,69 @@
|
|||
// +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 (
|
||||
"syscall"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
// Stat 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 Stat(path string) (total, free int64, err error) {
|
||||
kernel32, err := syscall.LoadLibrary("Kernel32.dll")
|
||||
if err != nil {
|
||||
return 0, 0, err
|
||||
}
|
||||
defer syscall.FreeLibrary(kernel32)
|
||||
// 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, err := syscall.GetProcAddress(syscall.Handle(kernel32), "GetDiskFreeSpaceExW")
|
||||
if err != nil {
|
||||
return 0, 0, 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
|
||||
// );
|
||||
r1, _, e1 := syscall.Syscall6(uintptr(GetDiskFreeSpaceEx), 4,
|
||||
uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(path))),
|
||||
uintptr(unsafe.Pointer(&lpFreeBytesAvailable)),
|
||||
uintptr(unsafe.Pointer(&lpTotalNumberOfBytes)),
|
||||
uintptr(unsafe.Pointer(&lpTotalNumberOfFreeBytes)), 0, 0)
|
||||
if e1 != 0 {
|
||||
return 0, 0, error(e1)
|
||||
}
|
||||
if r1 == 0 {
|
||||
return 0, 0, syscall.EINVAL
|
||||
}
|
||||
total = int64(lpTotalNumberOfBytes)
|
||||
free = int64(lpFreeBytesAvailable)
|
||||
return total, free, nil
|
||||
}
|
49
pkg/disk/type_darwin.go
Normal file
49
pkg/disk/type_darwin.go
Normal file
|
@ -0,0 +1,49 @@
|
|||
// +build darwin
|
||||
|
||||
/*
|
||||
* 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 (
|
||||
"strconv"
|
||||
"syscall"
|
||||
)
|
||||
|
||||
// fsType2StrinMap - list of filesystems supported by donut
|
||||
var fsType2StringMap = map[string]string{
|
||||
"11": "HFS",
|
||||
}
|
||||
|
||||
// FSType returns the filesystem type of the underlying mounted filesystem
|
||||
func FSType(path string) (string, error) {
|
||||
s := syscall.Statfs_t{}
|
||||
err := syscall.Statfs(path, &s)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
return getFSType(s.Type), nil
|
||||
}
|
||||
|
||||
// getFSType - get filesystem type
|
||||
func getFSType(fsType uint32) string {
|
||||
fsTypeHex := strconv.FormatUint(uint64(fsType), 16)
|
||||
fsTypeString, ok := fsType2StringMap[fsTypeHex]
|
||||
if ok == false {
|
||||
return "UNKNOWN"
|
||||
}
|
||||
return fsTypeString
|
||||
}
|
60
pkg/disk/type_linux.go
Normal file
60
pkg/disk/type_linux.go
Normal file
|
@ -0,0 +1,60 @@
|
|||
// +build linux
|
||||
|
||||
/*
|
||||
* 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 (
|
||||
"strconv"
|
||||
"syscall"
|
||||
)
|
||||
|
||||
// fsType2StringMap - list of filesystems supported by donut on linux
|
||||
var fsType2StringMap = map[string]string{
|
||||
"1021994": "TMPFS",
|
||||
"137d": "EXT",
|
||||
"4244": "HFS",
|
||||
"4d44": "MSDOS",
|
||||
"52654973": "REISERFS",
|
||||
"5346544e": "NTFS",
|
||||
"58465342": "XFS",
|
||||
"61756673": "AUFS",
|
||||
"6969": "NFS",
|
||||
"ef51": "EXT2OLD",
|
||||
"ef53": "EXT4",
|
||||
"f15f": "ecryptfs",
|
||||
}
|
||||
|
||||
// FSType returns the filesystem type of the underlying mounted filesystem
|
||||
func FSType(path string) (string, error) {
|
||||
s := syscall.Statfs_t{}
|
||||
err := syscall.Statfs(path, &s)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
return getFSType(s.Type), nil
|
||||
}
|
||||
|
||||
// getFSType - get filesystem type
|
||||
func getFSType(fsType int64) string {
|
||||
fsTypeHex := strconv.FormatInt(fsType, 16)
|
||||
fsTypeString, ok := fsType2StringMap[fsTypeHex]
|
||||
if ok == false {
|
||||
return "UNKNOWN"
|
||||
}
|
||||
return fsTypeString
|
||||
}
|
Loading…
Reference in a new issue