this will be paid later

1 files changed, 96 insertions, 0 deletions

diff --git a/libs/qtsingleapplication/src/qtlockedfile.h b/libs/qtsingleapplication/src/qtlockedfile.h
new file mode 100755
index 0000000..07a42bf
--- /dev/null
+++ b/libs/qtsingleapplication/src/qtlockedfile.h
@@ -0,0 +1,96 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of a Qt Solutions component.
+**
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+****************************************************************************/
+
+#ifndef QTLOCKEDFILE_H
+#define QTLOCKEDFILE_H
+
+#include <QtCore/QFile>
+#ifdef Q_OS_WIN
+#include <QtCore/QVector>
+#endif
+
+#if defined(Q_WS_WIN)
+#  if !defined(QT_QTLOCKEDFILE_EXPORT) && !defined(QT_QTLOCKEDFILE_IMPORT)
+#    define QT_QTLOCKEDFILE_EXPORT
+#  elif defined(QT_QTLOCKEDFILE_IMPORT)
+#    if defined(QT_QTLOCKEDFILE_EXPORT)
+#      undef QT_QTLOCKEDFILE_EXPORT
+#    endif
+#    define QT_QTLOCKEDFILE_EXPORT __declspec(dllimport)
+#  elif defined(QT_QTLOCKEDFILE_EXPORT)
+#    undef QT_QTLOCKEDFILE_EXPORT
+#    define QT_QTLOCKEDFILE_EXPORT __declspec(dllexport)
+#  endif
+#else
+#  define QT_QTLOCKEDFILE_EXPORT
+#endif
+
+namespace QtLP_Private {
+
+class QT_QTLOCKEDFILE_EXPORT QtLockedFile : public QFile
+{
+public:
+    enum LockMode { NoLock = 0, ReadLock, WriteLock };
+
+    QtLockedFile();
+    QtLockedFile(const QString &name);
+    ~QtLockedFile();
+
+    bool open(OpenMode mode);
+
+    bool lock(LockMode mode, bool block = true);
+    bool unlock();
+    bool isLocked() const;
+    LockMode lockMode() const;
+
+private:
+#ifdef Q_OS_WIN
+    Qt::HANDLE wmutex;
+    Qt::HANDLE rmutex;
+    QVector<Qt::HANDLE> rmutexes;
+    QString mutexname;
+
+    Qt::HANDLE getMutexHandle(int idx, bool doCreate);
+    bool waitMutex(Qt::HANDLE mutex, bool doBlock);
+
+#endif
+    LockMode m_lock_mode;
+};
+}
+#endif