1 /***
2 * Copyright 2003-2010 Terracotta, Inc.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 package net.sf.ehcache.constructs.nonstop.concurrency;
18
19 /***
20 * Package protected interface to maintain explicit locking state
21 *
22 * @author Abhishek Sanoujam
23 *
24 */
25 interface ExplicitLockingContext {
26
27 /***
28 * Returns true if the current thread has acquired any locks previously and not released yet
29 *
30 * @return true if the current thread has acquired any locks previously and not released yet
31 */
32 public boolean areAnyExplicitLocksAcquired();
33
34 /***
35 * Mark a lock acquire
36 *
37 * @param currentNonstopThreadUniqueId
38 */
39 public void lockAcquired(long currentNonstopThreadUniqueId);
40
41 /***
42 * Mark a lock release
43 */
44 public void lockReleased();
45
46 /***
47 * Returns true if some other thread than the thread whose unique id is passed in the parameter has acquired any locks previously and
48 * not released yet
49 *
50 * @param currentNonstopThreadUniqueId
51 * @return true if some other thread than the thread whose unique id is passed in the parameter has acquired any locks previously and
52 * not released yet
53 */
54 public boolean areLocksAcquiredByOtherThreads(long currentNonstopThreadUniqueId);
55 }