sessionunlocker.h
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1 /*
2  * Copyright (C) 2009 Tommi Maekitalo
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * As a special exception, you may use this file as part of a free
10  * software library without restriction. Specifically, if other files
11  * instantiate templates or use macros or inline functions from this
12  * file, or you compile this file and link it with other files to
13  * produce an executable, this file does not by itself cause the
14  * resulting executable to be covered by the GNU General Public
15  * License. This exception does not however invalidate any other
16  * reasons why the executable file might be covered by the GNU Library
17  * General Public License.
18  *
19  * This library is distributed in the hope that it will be useful,
20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22  * Lesser General Public License for more details.
23  *
24  * You should have received a copy of the GNU Lesser General Public
25  * License along with this library; if not, write to the Free Software
26  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
27  */
28 
29 
30 #ifndef TNT_SESSIONUNLOCKER_H
31 #define TNT_SESSIONUNLOCKER_H
32 
33 #include <tnt/httprequest.h>
34 
35 namespace tnt
36 {
47  {
48  HttpRequest& _request;
49  bool _locked;
50 
51  public:
52  explicit SessionUnlocker(HttpRequest& request, bool release = true)
53  : _request(request),
54  _locked(request._sessionScopeLocked)
55  {
56  if (_locked && release)
57  _request.releaseSessionScopeLock();
58  }
59 
61  {
62  if (_locked)
63  _request.ensureSessionScopeLock();
64  }
65 
66  void unlock()
67  {
68  _request.releaseSessionScopeLock();
69  _locked = false;
70  }
71 
72  void lock()
73  {
74  _request.ensureSessionScopeLock();
75  _locked = true;
76  }
77  };
78 }
79 
80 #endif // TNT_SESSIONUNLOCKER_H
81