xref: /aoo41x/main/sd/inc/misc/scopelock.hxx (revision 67e470da)
1 /**************************************************************
2  *
3  * Licensed to the Apache Software Foundation (ASF) under one
4  * or more contributor license agreements.  See the NOTICE file
5  * distributed with this work for additional information
6  * regarding copyright ownership.  The ASF licenses this file
7  * to you under the Apache License, Version 2.0 (the
8  * "License"); you may not use this file except in compliance
9  * with the License.  You may obtain a copy of the License at
10  *
11  *   http://www.apache.org/licenses/LICENSE-2.0
12  *
13  * Unless required by applicable law or agreed to in writing,
14  * software distributed under the License is distributed on an
15  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16  * KIND, either express or implied.  See the License for the
17  * specific language governing permissions and limitations
18  * under the License.
19  *
20  *************************************************************/
21 
22 
23 
24 #ifndef _SD_SCOPELOCK_HXX
25 #define _SD_SCOPELOCK_HXX
26 
27 namespace sd
28 {
29 
30 class ScopeLock
31 {
32 	friend class ScopeLockGuard;
33 public:
ScopeLock()34 	ScopeLock() : mnLock(0) {}
isLocked() const35 	bool isLocked() const { return mnLock != 0; }
36 private:
lock()37 	void lock() { mnLock++; }
unlock()38 	void unlock() { mnLock--; }
39 
40 	sal_Int32	mnLock;
41 };
42 
43 class ScopeLockGuard
44 {
45 public:
ScopeLockGuard(ScopeLock & rScopeLock)46 	ScopeLockGuard( ScopeLock& rScopeLock ) : mrScopeLock( rScopeLock ) { mrScopeLock.lock(); }
~ScopeLockGuard()47 	~ScopeLockGuard() { mrScopeLock.unlock(); }
48 private:
49 	ScopeLock& mrScopeLock;
50 };
51 
52 } // namespace sd
53 
54 #endif	   // _SD_UNDOMANAGER_HXX
55