mirror of
https://github.com/minio/minio.git
synced 2024-12-25 22:55:54 -05:00
2642e12d14
This allows for order guarantees in returned values can be consumed safely by the caller to avoid any additional parsing and validation. Fixes #9171
82 lines
2.4 KiB
Go
82 lines
2.4 KiB
Go
/*
|
|
* MinIO Cloud Storage, (C) 2019 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 madmin
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"io/ioutil"
|
|
"net/http"
|
|
"time"
|
|
)
|
|
|
|
// LockEntry holds information about client requesting the lock,
|
|
// servers holding the lock, source on the client machine,
|
|
// ID, type(read or write) and time stamp.
|
|
type LockEntry struct {
|
|
Timestamp time.Time `json:"time"` // Timestamp set at the time of initialization.
|
|
Resource string `json:"resource"` // Resource contains info like bucket, object etc
|
|
Type string `json:"type"` // Bool whether write or read lock.
|
|
Source string `json:"source"` // Source which created the lock
|
|
ServerList []string `json:"serverlist"` // RPC path of servers issuing the lock.
|
|
Owner string `json:"owner"` // RPC path of client claiming lock.
|
|
ID string `json:"id"` // UID to uniquely identify request of client.
|
|
}
|
|
|
|
// LockEntries - To sort the locks
|
|
type LockEntries []LockEntry
|
|
|
|
func (l LockEntries) Len() int {
|
|
return len(l)
|
|
}
|
|
|
|
func (l LockEntries) Less(i, j int) bool {
|
|
return l[i].Timestamp.Before(l[j].Timestamp)
|
|
}
|
|
|
|
func (l LockEntries) Swap(i, j int) {
|
|
l[i], l[j] = l[j], l[i]
|
|
}
|
|
|
|
// TopLocks - returns the oldest locks in a minio setup.
|
|
func (adm *AdminClient) TopLocks(ctx context.Context) (LockEntries, error) {
|
|
// Execute GET on /minio/admin/v3/top/locks
|
|
// to get the oldest locks in a minio setup.
|
|
resp, err := adm.executeMethod(ctx,
|
|
http.MethodGet,
|
|
requestData{relPath: adminAPIPrefix + "/top/locks"},
|
|
)
|
|
defer closeResponse(resp)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if resp.StatusCode != http.StatusOK {
|
|
return nil, httpRespToErrorResponse(resp)
|
|
}
|
|
|
|
response, err := ioutil.ReadAll(resp.Body)
|
|
if err != nil {
|
|
return LockEntries{}, err
|
|
}
|
|
|
|
var lockEntries LockEntries
|
|
err = json.Unmarshal(response, &lockEntries)
|
|
return lockEntries, err
|
|
}
|