1 files changed, 68 insertions, 0 deletions
diff --git a/src/libs/kdtools/kdlockfile_win.cpp b/src/libs/kdtools/kdlockfile_win.cpp
new file mode 100644
index 000000000..f139bd0d4
--- /dev/null
+++ b/src/libs/kdtools/kdlockfile_win.cpp
@@ -0,0 +1,68 @@
+/****************************************************************************
+** Copyright (C) 2001-2010 Klaralvdalens Datakonsult AB.  All rights reserved.
+**
+** This file is part of the KD Tools library.
+**
+** Licensees holding valid commercial KD Tools licenses may use this file in
+** accordance with the KD Tools Commercial License Agreement provided with
+** the Software.
+**
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU Lesser General Public License version 2 and version 3 as published by the
+** Free Software Foundation and appearing in the file LICENSE.LGPL included.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+** Contact info@kdab.com if any conditions of this licensing are not
+** clear to you.
+**
+**********************************************************************/
+
+#include "kdlockfile.h"
+#include "kdlockfile_p.h"
+
+#include <QtCore/QCoreApplication>
+#include <QtCore/QFileInfo>
+
+KDLockFile::Private::~Private()
+{
+    unlock();    
+}
+
+bool KDLockFile::Private::lock()
+{
+    const QFileInfo fi(filename);
+    handle = CreateFile(filename.toStdWString().data(),
+                        GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ,
+                        NULL, fi.exists() ? OPEN_EXISTING : CREATE_NEW,
+                        FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_TEMPORARY | FILE_FLAG_DELETE_ON_CLOSE, NULL);
+
+    if (!handle)
+        return false;
+    QString pid = QString::number(qApp->applicationPid());
+    QByteArray data = pid.toLatin1();
+    DWORD bytesWritten;
+    const bool wrotePid = WriteFile(handle, data.data(), data.size(), &bytesWritten, NULL);
+    if (!wrotePid)
+        return false;
+    FlushFileBuffers(handle);
+
+    const bool locked = LockFile(handle, 0, 0, fi.size(), 0);
+
+    this->locked = locked;
+    return locked;
+}
+
+bool KDLockFile::Private::unlock()
+{
+    const QFileInfo fi(filename);
+    if (locked) {
+        const bool success = UnlockFile(handle, 0, 0, 0, fi.size());
+        this->locked = !success;
+        CloseHandle(handle);
+        return success;
+    }
+    return true;
+}