1 files changed, 116 insertions, 0 deletions
diff --git a/src/plugins/sensors/dummy/dummycommon.cpp b/src/plugins/sensors/dummy/dummycommon.cpp
new file mode 100644
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+++ b/src/plugins/sensors/dummy/dummycommon.cpp
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+/****************************************************************************
+**
+** 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 the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "dummycommon.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.
+#else
+#include <time.h>
+#endif
+
+dummycommon::dummycommon(QSensor *sensor)
+    : QSensorBackend(sensor)
+    , m_timerid(0)
+{
+}
+
+void dummycommon::start()
+{
+    if (m_timerid)
+        return;
+
+    int dataRate = sensor()->dataRate();
+    if (dataRate == 0) {
+        if (sensor()->availableDataRates().count())
+            // Use the first available rate when -1 is chosen
+            dataRate = sensor()->availableDataRates().first().first;
+        else
+            dataRate = 1;
+    }
+
+    int interval = 1000 / dataRate;
+
+    if (interval)
+        m_timerid = startTimer(interval);
+}
+
+void dummycommon::stop()
+{
+    if (m_timerid) {
+        killTimer(m_timerid);
+        m_timerid = 0;
+    }
+}
+
+void dummycommon::timerEvent(QTimerEvent * /*event*/)
+{
+    poll();
+}
+
+quint64 dummycommon::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
+}
+