78 lines
2.1 KiB
Go
78 lines
2.1 KiB
Go
/*
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Copyright The Velero Contributors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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 datapath
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import (
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"context"
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"sync"
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"github.com/pkg/errors"
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"github.com/sirupsen/logrus"
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"sigs.k8s.io/controller-runtime/pkg/client"
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)
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var ConcurrentLimitExceed error = errors.New("Concurrent number exceeds")
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var FSBRCreator = newFileSystemBR
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type Manager struct {
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cocurrentNum int
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trackerLock sync.Mutex
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tracker map[string]AsyncBR
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}
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// NewManager creates the data path manager to manage concurrent data path instances
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func NewManager(cocurrentNum int) *Manager {
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return &Manager{
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cocurrentNum: cocurrentNum,
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tracker: map[string]AsyncBR{},
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}
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}
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// CreateFileSystemBR creates a new file system backup/restore data path instance
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func (m *Manager) CreateFileSystemBR(jobName string, requestorType string, ctx context.Context, client client.Client, namespace string, callbacks Callbacks, log logrus.FieldLogger) (AsyncBR, error) {
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m.trackerLock.Lock()
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defer m.trackerLock.Unlock()
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if len(m.tracker) == m.cocurrentNum {
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return nil, ConcurrentLimitExceed
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}
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m.tracker[jobName] = FSBRCreator(jobName, requestorType, client, namespace, callbacks, log)
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return m.tracker[jobName], nil
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}
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// RemoveAsyncBR removes a file system backup/restore data path instance
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func (m *Manager) RemoveAsyncBR(jobName string) {
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m.trackerLock.Lock()
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defer m.trackerLock.Unlock()
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delete(m.tracker, jobName)
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}
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// GetAsyncBR returns the file system backup/restore data path instance for the specified job name
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func (m *Manager) GetAsyncBR(jobName string) AsyncBR {
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m.trackerLock.Lock()
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defer m.trackerLock.Unlock()
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if async, exist := m.tracker[jobName]; exist {
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return async
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} else {
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return nil
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}
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}
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