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//
// Copyright (c) 1996, 2004 by Massimiliano Ghilardi ( ghilardi@cibs.sns.it )
// 2007 by Samuel Thibault ( samuel.thibault@ens-lyon.org )
//
// This file may be distributed under terms of the GPL
//
#include "pagemeter.h"
#include "xosview.h"
#include <fstream>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <error.h>
extern "C" {
#include <mach/mach_traps.h>
#include <mach/mach_interface.h>
}
PageMeter::PageMeter( XOSView *parent, float max )
: FieldMeterGraph( parent, 3, "PAGE", "IN/OUT/IDLE" ) {
for ( int i = 0 ; i < 2 ; i++ )
for ( int j = 0 ; j < 2 ; j++ )
pageinfo_[j][i] = 0;
maxspeed_ = max;
pageindex_ = 0;
}
PageMeter::~PageMeter( void ){
}
void PageMeter::checkResources( void ){
FieldMeterGraph::checkResources();
setfieldcolor( 0, parent_->getResource( "pageInColor" ) );
setfieldcolor( 1, parent_->getResource( "pageOutColor" ) );
setfieldcolor( 2, parent_->getResource( "pageIdleColor" ) );
priority_ = atoi (parent_->getResource( "pagePriority" ) );
maxspeed_ *= priority_ / 10.0;
dodecay_ = parent_->isResourceTrue( "pageDecay" );
useGraph_ = parent_->isResourceTrue( "pageGraph" );
SetUsedFormat (parent_->getResource("pageUsedFormat"));
}
void PageMeter::checkevent( void ){
getpageinfo();
drawfields();
}
void PageMeter::updateinfo(void)
{
int oldindex = (pageindex_+1)%2;
for ( int i = 0; i < 2; i++ )
{
if ( pageinfo_[oldindex][i] == 0 )
pageinfo_[oldindex][i] = pageinfo_[pageindex_][i];
fields_[i] = pageinfo_[pageindex_][i] - pageinfo_[oldindex][i];
total_ += fields_[i];
}
if ( total_ > maxspeed_ )
fields_[2] = 0.0;
else
{
fields_[2] = maxspeed_ - total_;
total_ = maxspeed_;
}
setUsed (total_ - fields_[2], maxspeed_);
pageindex_ = (pageindex_ + 1) % 2;
}
void PageMeter::getpageinfo(void) {
struct vm_statistics vmstats;
total_ = 0;
kern_return_t err;
err = vm_statistics (mach_task_self(), &vmstats);
if (err) {
error (0, err, "vm_statistics");
parent_->done(1);
return;
}
pageinfo_[pageindex_][0] = vmstats.pageins;
pageinfo_[pageindex_][1] = vmstats.pageouts;
updateinfo();
}
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