rainmeter-studio/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.
*/
#include "StdAfx.h"
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#include "MeasureVirtualMemory.h"
#include "ConfigParser.h"
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/*
** CMeasureVirtualMemory
**
** The constructor
**
*/
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CMeasureVirtualMemory::CMeasureVirtualMemory(CMeterWindow* meterWindow, const WCHAR* name) : CMeasure(meterWindow, name),
m_Total(false)
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{
}
/*
** ~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;
}