tests/benchmarks/uimodels/GraphicsViewBenchmark/widgets/resourcemoninterface.h
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     5 **
       
     6 ** This file is part of the examples of the Qt Toolkit.
       
     7 **
       
     8 ** $QT_BEGIN_LICENSE:LGPL$
       
     9 ** No Commercial Usage
       
    10 ** This file contains pre-release code and may not be distributed.
       
    11 ** You may use this file in accordance with the terms and conditions
       
    12 ** contained in the either Technology Preview License Agreement or the
       
    13 ** Beta Release License Agreement.
       
    14 **
       
    15 ** GNU Lesser General Public License Usage
       
    16 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    17 ** General Public License version 2.1 as published by the Free Software
       
    18 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    19 ** packaging of this file.  Please review the following information to
       
    20 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    21 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    22 **
       
    23 ** In addition, as a special exception, Nokia gives you certain
       
    24 ** additional rights. These rights are described in the Nokia Qt LGPL
       
    25 ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
       
    26 ** package.
       
    27 **
       
    28 ** GNU General Public License Usage
       
    29 ** Alternatively, this file may be used under the terms of the GNU
       
    30 ** General Public License version 3.0 as published by the Free Software
       
    31 ** Foundation and appearing in the file LICENSE.GPL included in the
       
    32 ** packaging of this file.  Please review the following information to
       
    33 ** ensure the GNU General Public License version 3.0 requirements will be
       
    34 ** met: http://www.gnu.org/copyleft/gpl.html.
       
    35 **
       
    36 ** If you are unsure which license is appropriate for your use, please
       
    37 ** contact the sales department at http://qt.nokia.com/contact.
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #ifndef __RESOURCEMONINTERFACE_H__
       
    43 #define __RESOURCEMONINTERFACE_H__
       
    44 
       
    45 class ResourceMonitorInterface
       
    46 {
       
    47 public:
       
    48     struct MemoryAllocation
       
    49     {
       
    50     int allocatedInAppThread;
       
    51     int numberOfAllocatedCellsInAppThread;
       
    52     int availableMemoryInAppThreadHeap;
       
    53     qint64 availableMemoryInSystem;
       
    54     qint64 totalMemoryInSystem;
       
    55     MemoryAllocation() : 
       
    56         allocatedInAppThread(0),
       
    57         numberOfAllocatedCellsInAppThread(0),
       
    58         availableMemoryInAppThreadHeap(0),
       
    59         availableMemoryInSystem(0),
       
    60         totalMemoryInSystem(0)
       
    61         {}
       
    62     };
       
    63     
       
    64     struct CpuUsage
       
    65     {
       
    66     qreal systemUsage;
       
    67     qreal appTreadUsage;
       
    68     CpuUsage() : 
       
    69         systemUsage(0.0),
       
    70         appTreadUsage(0.0)
       
    71         {}
       
    72     };
       
    73     
       
    74 public:
       
    75     virtual ~ResourceMonitorInterface() {}
       
    76 
       
    77 public:
       
    78     //for symbian, prepares the resource monitor for data capture, opens handle to ekern null
       
    79     //thread and sets initial values
       
    80     virtual bool Prepare(QString applicationThreadName) = 0;
       
    81     
       
    82     //functions for CPU load and memory - Call Prepare before calling these
       
    83     virtual CpuUsage CPULoad()=0;
       
    84     virtual MemoryAllocation MemoryLoad()=0;
       
    85     
       
    86     virtual void BeginMeasureMemoryLoad()=0;
       
    87     virtual MemoryAllocation EndMeasureMemoryLoad()=0;
       
    88     
       
    89     virtual void BeginMeasureCPULoad()=0;
       
    90     virtual CpuUsage EndMeasureCPULoad()=0;
       
    91     
       
    92 };
       
    93 
       
    94 Q_DECLARE_INTERFACE(ResourceMonitorInterface,
       
    95                      "com.trolltech.Plugin.ResourceMonitorInterface/1.0");
       
    96 
       
    97 #endif //__RESOURCEMONINTERFACE_H__