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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 written by Brian Grayson for the NetBSD and xosview
// projects.
// 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 "netmeter.h"
#include "kernel.h"
#include <stdlib.h>
#include <err.h>
NetMeter::NetMeter( XOSView *parent, double max )
: FieldMeterGraph( parent, 3, "NET", "IN/OUT/IDLE" ) {
if (!BSDNetInit()) {
warnx("The kernel does not seem to have the symbols needed for the NetMeter.");
warnx("The NetMeter has been disabled.");
disableMeter ();
}
else {
total_ = netBandwidth_ = max;
lastBytesIn_ = lastBytesOut_ = 0;
netIface_ = "False";
ignored_ = false;
BSDGetNetInOut(&lastBytesIn_, &lastBytesOut_, netIface_.c_str(), ignored_);
IntervalTimerStart();
}
}
NetMeter::~NetMeter( void ) {
}
void NetMeter::checkResources( void ) {
FieldMeterGraph::checkResources();
setfieldcolor( 0, parent_->getResource("netInColor") );
setfieldcolor( 1, parent_->getResource("netOutColor") );
setfieldcolor( 2, parent_->getResource("netBackground") );
priority_ = atoi( parent_->getResource("netPriority") );
dodecay_ = parent_->isResourceTrue("netDecay");
useGraph_ = parent_->isResourceTrue("netGraph");
SetUsedFormat( parent_->getResource("netUsedFormat") );
netIface_ = parent_->getResource("netIface");
if (netIface_[0] == '-') {
ignored_ = true;
netIface_.erase(0, netIface_.find_first_not_of("- "));
}
}
void NetMeter::checkevent( void ) {
getstats();
drawfields();
}
void NetMeter::getstats(void) {
// Reset total_ to expected maximum. If it is too low, it
// will be adjusted in adjust(). bgrayson
total_ = netBandwidth_;
fields_[0] = fields_[1] = 0;
uint64_t nowBytesIn, nowBytesOut;
IntervalTimerStop();
BSDGetNetInOut(&nowBytesIn, &nowBytesOut, netIface_.c_str(), ignored_);
double t = (1.0) / IntervalTimeInSecs();
IntervalTimerStart();
fields_[0] = (double)(nowBytesIn - lastBytesIn_) * t;
lastBytesIn_ = nowBytesIn;
fields_[1] = (double)(nowBytesOut - lastBytesOut_) * t;
lastBytesOut_ = nowBytesOut;
if (total_ < (fields_[0] + fields_[1]))
total_ = fields_[0] + fields_[1];
fields_[2] = total_ - fields_[0] - fields_[1];
/* The fields_ values have already been scaled into bytes/sec by
* the manipulations (* t) above. */
setUsed(fields_[0] + fields_[1], total_);
}
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