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/*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* SystemUtils.cpp
* System Helper methods.
* Copyright (C) 2013 Peter Newman
*/
#if HAVE_CONFIG_H
#include <config.h>
#endif // HAVE_CONFIG_H
#include "ola/Logging.h"
#include "ola/system/SystemUtils.h"
namespace ola {
namespace system {
bool LoadAverage(load_averages average, double *value) {
#ifdef HAVE_GETLOADAVG
if (average >= NUMBER_LOAD_AVERAGES) {
return false;
}
double averages[NUMBER_LOAD_AVERAGES];
uint8_t returned;
returned = getloadavg(averages, NUMBER_LOAD_AVERAGES);
if (returned != NUMBER_LOAD_AVERAGES) {
OLA_WARN << "getloadavg only returned " << static_cast<int>(returned)
<< " values, expecting " << static_cast<int>(NUMBER_LOAD_AVERAGES)
<< " values";
return false;
} else {
*value = averages[average];
return true;
}
#else
// No getloadavg, do something else if Windows?
OLA_WARN << "getloadavg not supported, can't fetch value";
(void) average;
*value = 0;
return false;
#endif // HAVE_GETLOADAVG
}
} // namespace system
} // namespace ola
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