Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegames@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 53 insertions, 0 deletions

diff --git a/libkdegames/highscore/kfilelock.h b/libkdegames/highscore/kfilelock.h
new file mode 100644
index 00000000..2e1841ba
--- /dev/null
+++ b/libkdegames/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