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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Mobility Components.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "util.h"
#ifdef Q_OS_WINCE
#include <windows.h>
// WINCE has <time.h> but using clock() gives a link error because
// the function isn't actually implemented.
#endif
#ifdef Q_OS_UNIX
#include <time.h>
#endif
#if (defined Q_OS_UNIX) || (defined Q_OS_WINCE)
quint64 getTimestamp()
{
#ifdef Q_OS_WINCE
// This implementation is based on code found here:
// http://social.msdn.microsoft.com/Forums/en/vssmartdevicesnative/thread/74870c6c-76c5-454c-8533-812cfca585f8
HANDLE currentThread = GetCurrentThread();
FILETIME creationTime, exitTime, kernalTime, userTime;
GetThreadTimes(currentThread, &creationTime, &exitTime, &kernalTime, &userTime);
ULARGE_INTEGER uli;
uli.LowPart = userTime.dwLowDateTime;
uli.HighPart = userTime.dwHighDateTime;
ULONGLONG systemTimeInMS = uli.QuadPart/10000;
return static_cast<quint64>(systemTimeInMS);
#else
struct timespec tv;
int ok;
ok = clock_gettime(CLOCK_MONOTONIC, &tv);
Q_ASSERT(ok == 0);
quint64 result = (tv.tv_sec * 1000000ULL) + (tv.tv_nsec * 0.001); // scale to microseconds
return result;
#endif
}
#endif
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