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tdefilelock.h
1/*
2 This file is part of the TDE games library
3 Copyright (C) 2003 Nicolas Hadacek <hadacek@kde.org>
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public
7 License version 2 as published by the Free Software Foundation.
8
9 This library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
13
14 You should have received a copy of the GNU Library General Public License
15 along with this library; see the file COPYING.LIB. If not, write to
16 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 Boston, MA 02110-1301, USA.
18*/
19#ifndef TDEFILELOCK_H
20#define TDEFILELOCK_H
21
22
23class KFileLock
24{
25public:
26 KFileLock(int fd);
27
29 ~KFileLock();
30
32 int fd() const { return _fd; }
33
34 /*
35 * Lock the file.
36 * @return 0 on success, -1 on failure (no permission) and -2 if another
37 * process is currently locking the file.
38 */
39 int lock();
40
42 void unlock();
43
45 bool isLocked() const { return _locked; }
46
47private:
48 int _fd;
49 bool _locked;
50};
51
52
53#endif

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