File: memmeter.cc

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//
//  Copyright (c) 1994, 1995 by Mike Romberg ( romberg@fsl.noaa.gov )
//
//  NetBSD port:
//  Copyright (c) 1995, 1996, 1997-2002 by Brian Grayson (bgrayson@netbsd.org)
//
//  This file was originally written by Brian Grayson for the NetBSD and
//    xosview projects.
//  The NetBSD memmeter was improved by Tom Pavel (pavel@slac.stanford.edu)
//    to provide active and inactive values, rather than just "used."
//
//  This file may be distributed under terms of the GPL or of the BSD
//    license, whichever you choose.  The full license notices are
//    contained in the files COPYING.GPL and COPYING.BSD, which you
//    should have received.  If not, contact one of the xosview
//    authors for a copy.
//

#include "memmeter.h"
#include "defines.h"
#include "kernel.h"
#include <stdlib.h>


MemMeter::MemMeter( XOSView *parent )
#if defined(HAVE_UVM)
	: FieldMeterGraph( parent, 4, "MEM", "ACT/INACT/WRD/FREE" ) {
#else
	: FieldMeterGraph( parent, 5, "MEM", "ACT/INACT/WRD/CA/FREE" ) {
#endif
	BSDPageInit();
}

MemMeter::~MemMeter( void ) {

}

void MemMeter::checkResources( void ) {
	FieldMeterGraph::checkResources();

	setfieldcolor( 0, parent_->getResource("memActiveColor") );
	setfieldcolor( 1, parent_->getResource("memInactiveColor") );
	setfieldcolor( 2, parent_->getResource("memWiredColor") );
#if defined(HAVE_UVM)
	setfieldcolor( 3, parent_->getResource("memFreeColor") );
#else
	setfieldcolor( 3, parent_->getResource("memCacheColor") );
	setfieldcolor( 4, parent_->getResource("memFreeColor") );
#endif
	priority_ = atoi( parent_->getResource("memPriority") );
	dodecay_ = parent_->isResourceTrue("memDecay");
	useGraph_ = parent_->isResourceTrue("memGraph");
	SetUsedFormat( parent_->getResource("memUsedFormat") );
}

void MemMeter::checkevent( void ) {
	getmeminfo();
	drawfields();
}

void MemMeter::getmeminfo( void ) {
	BSDGetPageStats(meminfo_, NULL);
	fields_[0] = (double)meminfo_[0];
	fields_[1] = (double)meminfo_[1];
	fields_[2] = (double)meminfo_[2];
#if defined(HAVE_UVM)
	fields_[3] = (double)meminfo_[4];
#else
	fields_[3] = (double)meminfo_[3];
	fields_[4] = (double)meminfo_[4];
#endif
	total_ = (double)(meminfo_[0] + meminfo_[1] + meminfo_[2] + meminfo_[3] + meminfo_[4]);
	setUsed(total_ - (double)meminfo_[4], total_);
}