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Diffstat (limited to 'libtdegames/highscore/kfilelock.h')
-rw-r--r-- | libtdegames/highscore/kfilelock.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/libtdegames/highscore/kfilelock.h b/libtdegames/highscore/kfilelock.h new file mode 100644 index 00000000..2e1841ba --- /dev/null +++ b/libtdegames/highscore/kfilelock.h @@ -0,0 +1,53 @@ +/* + This file is part of the KDE games library + Copyright (C) 2003 Nicolas Hadacek <hadacek@kde.org> + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License version 2 as published by the Free Software Foundation. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + along with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ +#ifndef KFILELOCK_H +#define KFILELOCK_H + + +class KFileLock +{ +public: + KFileLock(int fd); + + /** Call unlock(). */ + ~KFileLock(); + + /** @return the file descriptor. */ + int fd() const { return _fd; } + + /* + * Lock the file. + * @return 0 on success, -1 on failure (no permission) and -2 if another + * process is currently locking the file. + */ + int lock(); + + /** Unlock the file. */ + void unlock(); + + /** @return true if we currently lock the file. */ + bool isLocked() const { return _locked; } + +private: + int _fd; + bool _locked; +}; + + +#endif |