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// Copyright 2014 Google Inc. All Rights Reserved.
//
// 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 fs
import "time"
type DeviceInfo struct {
Device string
Major uint
Minor uint
}
type FsType string
func (ft FsType) String() string {
return string(ft)
}
const (
ZFS FsType = "zfs"
DeviceMapper FsType = "devicemapper"
VFS FsType = "vfs"
)
type Fs struct {
DeviceInfo
Type FsType
Capacity uint64
Free uint64
Available uint64
Inodes uint64
InodesFree uint64
DiskStats DiskStats
}
type DiskStats struct {
ReadsCompleted uint64
ReadsMerged uint64
SectorsRead uint64
ReadTime uint64
WritesCompleted uint64
WritesMerged uint64
SectorsWritten uint64
WriteTime uint64
IoInProgress uint64
IoTime uint64
WeightedIoTime uint64
}
type FsInfo interface {
// Returns capacity and free space, in bytes, of all the ext2, ext3, ext4 filesystems on the host.
GetGlobalFsInfo() ([]Fs, error)
// Returns capacity and free space, in bytes, of the set of mounts passed.
GetFsInfoForPath(mountSet map[string]struct{}) ([]Fs, error)
// Returns number of bytes occupied by 'dir'.
GetDirUsage(dir string, timeout time.Duration) (uint64, error)
// Returns the block device info of the filesystem on which 'dir' resides.
GetDirFsDevice(dir string) (*DeviceInfo, error)
// Returns the device name associated with a particular label.
GetDeviceForLabel(label string) (string, error)
// Returns all labels associated with a particular device name.
GetLabelsForDevice(device string) ([]string, error)
// Returns the mountpoint associated with a particular device.
GetMountpointForDevice(device string) (string, error)
}
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