2019-10-25 19:37:53 +02:00
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/*
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* MinIO Cloud Storage, (C) 2019 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package cmd
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import (
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"io"
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)
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// Detects change in underlying disk.
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type posixDiskIDCheck struct {
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storage *posix
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diskID string
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}
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func (p *posixDiskIDCheck) String() string {
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return p.storage.String()
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}
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func (p *posixDiskIDCheck) IsOnline() bool {
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storedDiskID, err := p.storage.getDiskID()
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if err != nil {
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return false
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}
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return storedDiskID == p.diskID
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}
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2019-12-12 15:02:37 +01:00
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func (p *posixDiskIDCheck) CrawlAndGetDataUsage(endCh <-chan struct{}) (DataUsageInfo, error) {
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return p.storage.CrawlAndGetDataUsage(endCh)
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}
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2020-01-13 22:09:10 +01:00
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func (p *posixDiskIDCheck) Hostname() string {
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return p.storage.Hostname()
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}
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2019-10-25 19:37:53 +02:00
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func (p *posixDiskIDCheck) Close() error {
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return p.storage.Close()
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}
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func (p *posixDiskIDCheck) SetDiskID(id string) {
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p.diskID = id
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}
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func (p *posixDiskIDCheck) isDiskStale() bool {
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if p.diskID == "" {
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// For empty disk-id we allow the call as the server might be coming up and trying to read format.json
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// or create format.json
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return false
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}
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storedDiskID, err := p.storage.getDiskID()
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if err == nil && p.diskID == storedDiskID {
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return false
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}
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return true
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}
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func (p *posixDiskIDCheck) DiskInfo() (info DiskInfo, err error) {
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if p.isDiskStale() {
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return info, errDiskNotFound
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}
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return p.storage.DiskInfo()
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}
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2019-12-24 01:31:03 +01:00
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func (p *posixDiskIDCheck) MakeVolBulk(volumes ...string) (err error) {
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if p.isDiskStale() {
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return errDiskNotFound
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}
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return p.storage.MakeVolBulk(volumes...)
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}
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2019-10-25 19:37:53 +02:00
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func (p *posixDiskIDCheck) MakeVol(volume string) (err error) {
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if p.isDiskStale() {
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return errDiskNotFound
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}
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return p.storage.MakeVol(volume)
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}
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func (p *posixDiskIDCheck) ListVols() ([]VolInfo, error) {
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if p.isDiskStale() {
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return nil, errDiskNotFound
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}
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return p.storage.ListVols()
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}
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func (p *posixDiskIDCheck) StatVol(volume string) (vol VolInfo, err error) {
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if p.isDiskStale() {
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return vol, errDiskNotFound
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}
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return p.storage.StatVol(volume)
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}
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func (p *posixDiskIDCheck) DeleteVol(volume string) (err error) {
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if p.isDiskStale() {
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return errDiskNotFound
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}
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return p.storage.DeleteVol(volume)
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}
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func (p *posixDiskIDCheck) Walk(volume, dirPath string, marker string, recursive bool, leafFile string, readMetadataFn readMetadataFunc, endWalkCh chan struct{}) (chan FileInfo, error) {
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if p.isDiskStale() {
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return nil, errDiskNotFound
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}
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return p.storage.Walk(volume, dirPath, marker, recursive, leafFile, readMetadataFn, endWalkCh)
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}
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func (p *posixDiskIDCheck) ListDir(volume, dirPath string, count int, leafFile string) ([]string, error) {
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if p.isDiskStale() {
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return nil, errDiskNotFound
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}
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return p.storage.ListDir(volume, dirPath, count, leafFile)
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}
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func (p *posixDiskIDCheck) ReadFile(volume string, path string, offset int64, buf []byte, verifier *BitrotVerifier) (n int64, err error) {
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if p.isDiskStale() {
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return 0, errDiskNotFound
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}
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return p.storage.ReadFile(volume, path, offset, buf, verifier)
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}
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func (p *posixDiskIDCheck) AppendFile(volume string, path string, buf []byte) (err error) {
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if p.isDiskStale() {
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return errDiskNotFound
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}
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return p.storage.AppendFile(volume, path, buf)
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}
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func (p *posixDiskIDCheck) CreateFile(volume, path string, size int64, reader io.Reader) error {
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if p.isDiskStale() {
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return errDiskNotFound
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}
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return p.storage.CreateFile(volume, path, size, reader)
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}
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func (p *posixDiskIDCheck) ReadFileStream(volume, path string, offset, length int64) (io.ReadCloser, error) {
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if p.isDiskStale() {
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return nil, errDiskNotFound
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}
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return p.storage.ReadFileStream(volume, path, offset, length)
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}
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func (p *posixDiskIDCheck) RenameFile(srcVolume, srcPath, dstVolume, dstPath string) error {
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if p.isDiskStale() {
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return errDiskNotFound
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}
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return p.storage.RenameFile(srcVolume, srcPath, dstVolume, dstPath)
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}
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func (p *posixDiskIDCheck) StatFile(volume string, path string) (file FileInfo, err error) {
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if p.isDiskStale() {
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return file, errDiskNotFound
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}
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return p.storage.StatFile(volume, path)
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}
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func (p *posixDiskIDCheck) DeleteFile(volume string, path string) (err error) {
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if p.isDiskStale() {
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return errDiskNotFound
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}
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return p.storage.DeleteFile(volume, path)
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}
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func (p *posixDiskIDCheck) DeleteFileBulk(volume string, paths []string) (errs []error, err error) {
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if p.isDiskStale() {
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return nil, errDiskNotFound
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}
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return p.storage.DeleteFileBulk(volume, paths)
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}
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func (p *posixDiskIDCheck) VerifyFile(volume, path string, size int64, algo BitrotAlgorithm, sum []byte, shardSize int64) error {
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if p.isDiskStale() {
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return errDiskNotFound
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}
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return p.storage.VerifyFile(volume, path, size, algo, sum, shardSize)
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}
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func (p *posixDiskIDCheck) WriteAll(volume string, path string, reader io.Reader) (err error) {
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if p.isDiskStale() {
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return errDiskNotFound
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}
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return p.storage.WriteAll(volume, path, reader)
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}
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func (p *posixDiskIDCheck) ReadAll(volume string, path string) (buf []byte, err error) {
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if p.isDiskStale() {
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return nil, errDiskNotFound
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}
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return p.storage.ReadAll(volume, path)
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}
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