Library/MeasureVirtualMemory.cpp

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+/*
+  Copyright (C) 2001 Kimmo Pekkola
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License
+  as published by the Free Software Foundation; either version 2
+  of the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+*/
+/*
+  $Header: /home/cvsroot/Rainmeter/Library/MeasureVirtualMemory.cpp,v 1.1.1.1 2005/07/10 18:51:06 rainy Exp $
+
+  $Log: MeasureVirtualMemory.cpp,v $
+  Revision 1.1.1.1  2005/07/10 18:51:06  rainy
+  no message
+
+  Revision 1.8  2004/06/05 10:55:54  rainy
+  Too much changes to be listed in here...
+
+  Revision 1.7  2002/04/26 18:24:15  rainy
+  Modified the Update method to support disabled measures.
+
+  Revision 1.6  2002/03/31 09:58:54  rainy
+  Added some comments
+
+  Revision 1.5  2001/09/26 16:27:14  rainy
+  Changed the interfaces a bit.
+
+  Revision 1.4  2001/09/01 13:00:09  rainy
+  Slight changes in the interface. The value is now measured only once if possible.
+
+  Revision 1.3  2001/08/19 09:14:20  rainy
+  Added support for value invert.
+
+  Revision 1.2  2001/08/12 15:43:24  Rainy
+  Adjusted Update()'s interface.
+
+  Revision 1.1.1.1  2001/08/11 10:58:19  Rainy
+  Added to CVS.
+
+*/
+#pragma warning(disable: 4996)
+
+#include "MeasureVirtualMemory.h"
+
+/*
+** CMeasureVirtualMemory
+**
+** The constructor
+**
+*/
+CMeasureVirtualMemory::CMeasureVirtualMemory(CMeterWindow* meterWindow) : CMeasure(meterWindow)
+{
+	m_Total = false;
+}
+
+/*
+** ~CMeasureVirtualMemory
+**
+** The destructor
+**
+*/
+CMeasureVirtualMemory::~CMeasureVirtualMemory()
+{
+}
+
+/*
+** Update
+**
+** Updates the current virtual memory value. 
+**
+*/
+bool CMeasureVirtualMemory::Update()
+{
+	if (!CMeasure::PreUpdate()) return false;
+
+	MEMORYSTATUSEX stat;
+	stat.dwLength = sizeof(MEMORYSTATUSEX);
+	GlobalMemoryStatusEx(&stat);		// Doesn't measure values > 4GB. Should use GlobalMemoryStatusEx instead, but that requires Win2k.
+	if (m_Total)
+	{
+		m_Value = (double)(__int64)stat.ullTotalPageFile;
+	}
+	else
+	{
+		m_Value = (double)(__int64)(stat.ullTotalPageFile - stat.ullAvailPageFile);
+	}
+
+
+	return PostUpdate();
+}
+
+/*
+** ReadConfig
+**
+** Reads the measure specific configs.
+**
+*/
+void CMeasureVirtualMemory::ReadConfig(CConfigParser& parser, const WCHAR* section)
+{
+	CMeasure::ReadConfig(parser, section);
+
+	m_Total = (1 == parser.ReadInt(section, L"Total", 0));
+
+	MEMORYSTATUSEX stat;
+	stat.dwLength = sizeof(MEMORYSTATUSEX);
+	GlobalMemoryStatusEx(&stat);
+	m_MaxValue = (double)(__int64)stat.ullTotalPageFile;
+}
+