| /* |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You 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 consumer |
| |
| import ( |
| "sync" |
| |
| "github.com/apache/rocketmq-client-go/v2/primitive" |
| ) |
| |
| type QueueLock struct { |
| lockTable sync.Map |
| } |
| |
| func newQueueLock() *QueueLock { |
| return &QueueLock{} |
| } |
| |
| func (ql QueueLock) fetchLock(queue primitive.MessageQueue) sync.Locker { |
| v, _ := ql.lockTable.LoadOrStore(queue, new(sync.Mutex)) |
| return v.(*sync.Mutex) |
| } |