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/*******************************************************************************
GPU sensor
Copyright (C) 2024 Mavridis Philippe <mavridisf@gmail.com>
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 3 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, see <http://www.gnu.org/licenses/>.
Improvements and feedback are welcome!
*******************************************************************************/
// TQt
#include <tqregexp.h>
// TDE
#include <kstandarddirs.h>
#include <kdebug.h>
// Superkaramba
#include "gpusensor.h"
GPUSensor::GPUSensor(TQString gpuDriver, TQString gpuId, int interval)
: Sensor(interval), m_gpuDriver(gpuDriver), m_gpuId(gpuId)
{
if (m_gpuDriver.lower() == "nvidia")
{
TQString nvsmi = TDEStandardDirs::findExe("nvidia-smi");
if (nvsmi.isNull())
{
kdError() << "The NVidia System Management Interface software is not avaiable." << endl;
return;
}
m_command << nvsmi << "--query-gpu" << "utilization.gpu"
<< "--format=csv,noheader";
if (!m_gpuId.isNull())
{
m_command << TQString("--id=%1").arg(m_gpuId);
}
}
else
{
kdError() << "Unsupported driver specified for GPU sensor (" << m_gpuDriver << ");" << endl
<< "\tSupported drivers are: nvidia" << endl;
}
connect(&m_proc, TQ_SIGNAL(receivedStdout(TDEProcess*, char*, int)),
this, TQ_SLOT(receivedStdout(TDEProcess*, char*, int)));
connect(&m_proc, TQ_SIGNAL(processExited(TDEProcess*)),
this, TQ_SLOT(processExited(TDEProcess*)));
}
GPUSensor::~GPUSensor()
{
}
void GPUSensor::update()
{
if (m_command.isEmpty()) return;
m_proc.clearArguments();
m_proc << m_command;
m_proc.start(TDEProcess::NotifyOnExit, TDEProcess::Stdout);
}
void GPUSensor::receivedStdout(TDEProcess *proc, char *buffer, int buflen)
{
buffer[buflen] = 0;
m_buffer += TQCString(buffer);
}
TQString GPUSensor::getLoad()
{
if (m_gpuDriver.lower() == "nvidia")
{
return m_buffer.left(m_buffer.length() - 3);
}
return TQString::null;
}
#define SUB_FORMAT_STR(fstring, value) \
format.replace(TQRegExp(#fstring, false), value)
void GPUSensor::processExited(TDEProcess *proc)
{
SensorParams *sp;
Meter *meter;
TQString format;
TQString load = getLoad();
m_buffer = TQString::null;
TQObjectListIt it(*objList);
while (it != 0)
{
sp = (SensorParams*)(*it);
meter = sp->getMeter();
format = sp->getParam("FORMAT");
if( format.length() == 0)
{
format = "%v";
}
SUB_FORMAT_STR(%load, load);
SUB_FORMAT_STR(%v, load);
meter->setValue(format);
++it;
}
}
#undef SUB_FORMAT_STR
void GPUSensor::setMaxValue(SensorParams *sp)
{
sp->getMeter()->setMax(100);
}
#include "gpusensor.moc"
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