| /* |
| * |
| * 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. |
| * |
| */ |
| |
| using System; |
| using System.Collections.Generic; |
| using System.Threading ; |
| |
| namespace org.apache.qpid.console |
| { |
| |
| /** |
| * Holds state during asynchronous calls to the broker. |
| */ |
| public class SequenceManager |
| { |
| long sequence = 0 ; |
| Dictionary<long, Object> pending = new Dictionary<long, Object>() ; |
| Object lockObject = new Object() ; |
| |
| public SequenceManager() |
| { |
| } |
| |
| public long Reserve(Object data) { |
| long returnValue = 0 ; |
| lock(lockObject) { |
| returnValue = sequence ; |
| sequence += 1 ; |
| pending.Add(returnValue, data) ; |
| } |
| return returnValue; |
| } |
| |
| public Object Release(long seq) { |
| Object returnValue = null ; |
| lock(lockObject) { |
| returnValue = pending[seq] ; |
| pending.Remove(seq) ; |
| } |
| |
| return returnValue ; |
| } |
| } |
| } |