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//
// Rewritten for Solaris by Arno Augustin 1999
// augustin@informatik.uni-erlangen.de
//
#include "netmeter.h"
#include <stdlib.h>
#include <unistd.h>
#include <stropts.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <string.h>
#include <iostream>
#ifdef DEBUG
#include <sstream>
#endif
NetMeter::NetMeter( XOSView *parent, kstat_ctl_t *kc, float max )
: FieldMeterGraph( parent, 3, "NET", "IN/OUT/IDLE" ){
_kc = kc;
_ignored = false;
_maxpackets = max;
_lastBytesIn = _lastBytesOut = 0;
_nets = KStatList::getList(_kc, KStatList::NETS);
if ( (_socket = socket(AF_INET, SOCK_DGRAM, 0)) < 0 ) {
std::cerr << "Opening socket failed." << std::endl;
parent_->done(1);
return;
}
}
NetMeter::~NetMeter( void ){
close(_socket);
}
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 ){
getnetstats();
drawfields();
}
void NetMeter::getnetstats( void ){
uint64_t nowBytesIn = 0, nowBytesOut = 0;
kstat_named_t *k;
kstat_t *ksp;
total_ = _maxpackets;
_nets->update(_kc);
IntervalTimerStop();
for (unsigned int i = 0; i < _nets->count(); i++) {
#ifdef DEBUG
std::stringstream msg;
#endif
ksp = (*_nets)[i];
if ( _netIface != "False" &&
( (!_ignored && ksp->ks_name != _netIface) ||
( _ignored && ksp->ks_name == _netIface) ) )
continue;
if ( kstat_read(_kc, ksp, NULL) == -1 )
continue;
#ifdef DEBUG
msg << ksp->ks_name << ": ";
#endif
// try 64-bit byte counter first, then 32-bit one, then packet counter
if ( (k = (kstat_named_t *)kstat_data_lookup(ksp, "rbytes64")) == NULL ) {
if ( (k = (kstat_named_t *)kstat_data_lookup(ksp, "rbytes")) == NULL ) {
if ( (k = (kstat_named_t *)kstat_data_lookup(ksp, "ipackets")) == NULL )
continue;
// for packet counter, mtu is needed
strncpy(_lfr.lifr_name, ksp->ks_name, sizeof(_lfr.lifr_name));
if ( ioctl(_socket, SIOCGLIFMTU, (caddr_t)&_lfr) < 0 )
continue;
nowBytesIn += kstat_to_ui64(k) * _lfr.lifr_mtu; // not exactly, but must do
#ifdef DEBUG
msg << kstat_to_ui64(k) << " packets received ";
#endif
}
else {
nowBytesIn += kstat_to_ui64(k);
#ifdef DEBUG
msg << kstat_to_ui64(k) << " bytes received ";
#endif
}
}
else {
nowBytesIn += kstat_to_ui64(k);
#ifdef DEBUG
msg << kstat_to_ui64(k) << " bytes received ";
#endif
}
if ( (k = (kstat_named_t *)kstat_data_lookup(ksp, "obytes64")) == NULL ) {
if ( (k = (kstat_named_t *)kstat_data_lookup(ksp, "obytes")) == NULL ) {
if ( (k = (kstat_named_t *)kstat_data_lookup(ksp, "opackets")) == NULL )
continue;
strncpy(_lfr.lifr_name, ksp->ks_name, sizeof(_lfr.lifr_name));
if ( ioctl(_socket, SIOCGLIFMTU, (caddr_t)&_lfr) < 0 )
continue;
nowBytesOut += kstat_to_ui64(k) * _lfr.lifr_mtu;
#ifdef DEBUG
msg << kstat_to_ui64(k) << " packets sent ";
#endif
}
else {
nowBytesOut += kstat_to_ui64(k);
#ifdef DEBUG
msg << kstat_to_ui64(k) << " bytes sent ";
#endif
}
}
else {
nowBytesOut += kstat_to_ui64(k);
#ifdef DEBUG
msg << kstat_to_ui64(k) << " bytes sent ";
#endif
}
#ifdef DEBUG
msg << std::ends;
XOSDEBUG("%s\n", msg.str().c_str())
#endif
}
uint64_t correction = 0x10000000;
correction *= 0x10;
/* Deal with 32-bit wrap by making last value 2^32 less. Yes,
* this is a better idea than adding to nowBytesIn -- the
* latter would only work for the first wrap (1+2^32 vs. 1)
* but not for the second (1+2*2^32 vs. 1) -- 1+2^32 -
* (1+2^32) is still too big. */
if (nowBytesIn < _lastBytesIn)
_lastBytesIn -= correction;
if (nowBytesOut < _lastBytesOut)
_lastBytesOut -= correction;
if(_lastBytesIn == 0)
_lastBytesIn = nowBytesIn;
if(_lastBytesOut == 0)
_lastBytesOut = nowBytesOut;
double t = IntervalTimeInSecs();
fields_[0] = (double)(nowBytesIn - _lastBytesIn) / t;
fields_[1] = (double)(nowBytesOut - _lastBytesOut) / t;
IntervalTimerStart();
_lastBytesIn = nowBytesIn;
_lastBytesOut = nowBytesOut;
if (total_ < fields_[0] + fields_[1])
total_ = fields_[0] + fields_[1];
fields_[2] = total_ - fields_[0] - fields_[1];
setUsed(fields_[0] + fields_[1], total_);
}
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